Add new WebViewClassic files

Done as its own step, to make the subsequent diff easier on the eye

Change-Id: Ib81eba5c7c26f2e0c9a60792bb0f7cd10e4c78bc

2 files changed, 12451 insertions, 0 deletions

diff --git a/core/java/android/webkit/WebSettingsClassic.java b/core/java/android/webkit/WebSettingsClassic.java
new file mode 100644
index 0000000..c463b40
--- /dev/null
+++ b/core/java/android/webkit/WebSettingsClassic.java
@@ -0,0 +1,1901 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.webkit;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Handler;
+import android.os.Message;
+import android.util.DisplayMetrics;
+import android.util.EventLog;
+
+import java.util.Locale;
+
+/**
+ * Manages settings state for a WebView. When a WebView is first created, it
+ * obtains a set of default settings. These default settings will be returned
+ * from any getter call. A WebSettings object obtained from
+ * WebView.getSettings() is tied to the life of the WebView. If a WebView has
+ * been destroyed, any method call on WebSettings will throw an
+ * IllegalStateException.
+ */
+public class WebSettings {
+    /**
+     * Enum for controlling the layout of html.
+     * NORMAL means no rendering changes.
+     * SINGLE_COLUMN moves all content into one column that is the width of the
+     * view.
+     * NARROW_COLUMNS makes all columns no wider than the screen if possible.
+     */
+    // XXX: These must match LayoutAlgorithm in Settings.h in WebCore.
+    public enum LayoutAlgorithm {
+        NORMAL,
+        /**
+         * @deprecated This algorithm is now obsolete.
+         */
+        @Deprecated
+        SINGLE_COLUMN,
+        NARROW_COLUMNS
+    }
+
+    /**
+     * Enum for specifying the text size.
+     * SMALLEST is 50%
+     * SMALLER is 75%
+     * NORMAL is 100%
+     * LARGER is 150%
+     * LARGEST is 200%
+     * @deprecated Use {@link WebSettings#setTextZoom(int)} and {@link WebSettings#getTextZoom()} instead.
+     */
+    public enum TextSize {
+        SMALLEST(50),
+        SMALLER(75),
+        NORMAL(100),
+        LARGER(150),
+        LARGEST(200);
+        TextSize(int size) {
+            value = size;
+        }
+        int value;
+    }
+
+    /**
+     * Enum for specifying the WebView's desired density.
+     * FAR makes 100% looking like in 240dpi
+     * MEDIUM makes 100% looking like in 160dpi
+     * CLOSE makes 100% looking like in 120dpi
+     */
+    public enum ZoomDensity {
+        FAR(150),      // 240dpi
+        MEDIUM(100),    // 160dpi
+        CLOSE(75);     // 120dpi
+        ZoomDensity(int size) {
+            value = size;
+        }
+        int value;
+    }
+
+    /**
+     * Default cache usage pattern  Use with {@link #setCacheMode}.
+     */
+    public static final int LOAD_DEFAULT = -1;
+
+    /**
+     * Normal cache usage pattern  Use with {@link #setCacheMode}.
+     */
+    public static final int LOAD_NORMAL = 0;
+
+    /**
+     * Use cache if content is there, even if expired (eg, history nav)
+     * If it is not in the cache, load from network.
+     * Use with {@link #setCacheMode}.
+     */
+    public static final int LOAD_CACHE_ELSE_NETWORK = 1;
+
+    /**
+     * Don't use the cache, load from network
+     * Use with {@link #setCacheMode}.
+     */
+    public static final int LOAD_NO_CACHE = 2;
+
+    /**
+     * Don't use the network, load from cache only.
+     * Use with {@link #setCacheMode}.
+     */
+    public static final int LOAD_CACHE_ONLY = 3;
+
+    public enum RenderPriority {
+        NORMAL,
+        HIGH,
+        LOW
+    }
+
+    /**
+     * The plugin state effects how plugins are treated on a page. ON means
+     * that any object will be loaded even if a plugin does not exist to handle
+     * the content. ON_DEMAND means that if there is a plugin installed that
+     * can handle the content, a placeholder is shown until the user clicks on
+     * the placeholder. Once clicked, the plugin will be enabled on the page.
+     * OFF means that all plugins will be turned off and any fallback content
+     * will be used.
+     */
+    public enum PluginState {
+        ON,
+        ON_DEMAND,
+        OFF
+    }
+
+    // TODO: Keep this up to date
+    private static final String PREVIOUS_VERSION = "4.0.3";
+
+    // WebView associated with this WebSettings.
+    private WebView mWebView;
+    // BrowserFrame used to access the native frame pointer.
+    private BrowserFrame mBrowserFrame;
+    // Flag to prevent multiple SYNC messages at one time.
+    private boolean mSyncPending = false;
+    // Custom handler that queues messages until the WebCore thread is active.
+    private final EventHandler mEventHandler;
+
+    // Private settings so we don't have to go into native code to
+    // retrieve the values. After setXXX, postSync() needs to be called.
+    //
+    // The default values need to match those in WebSettings.cpp
+    // If the defaults change, please also update the JavaDocs so developers
+    // know what they are.
+    private LayoutAlgorithm mLayoutAlgorithm = LayoutAlgorithm.NARROW_COLUMNS;
+    private Context         mContext;
+    private int             mTextSize = 100;
+    private String          mStandardFontFamily = "sans-serif";
+    private String          mFixedFontFamily = "monospace";
+    private String          mSansSerifFontFamily = "sans-serif";
+    private String          mSerifFontFamily = "serif";
+    private String          mCursiveFontFamily = "cursive";
+    private String          mFantasyFontFamily = "fantasy";
+    private String          mDefaultTextEncoding;
+    private String          mUserAgent;
+    private boolean         mUseDefaultUserAgent;
+    private String          mAcceptLanguage;
+    private int             mMinimumFontSize = 8;
+    private int             mMinimumLogicalFontSize = 8;
+    private int             mDefaultFontSize = 16;
+    private int             mDefaultFixedFontSize = 13;
+    private int             mPageCacheCapacity = 0;
+    private boolean         mLoadsImagesAutomatically = true;
+    private boolean         mBlockNetworkImage = false;
+    private boolean         mBlockNetworkLoads;
+    private boolean         mJavaScriptEnabled = false;
+    private boolean         mHardwareAccelSkia = false;
+    private boolean         mShowVisualIndicator = false;
+    private PluginState     mPluginState = PluginState.OFF;
+    private boolean         mJavaScriptCanOpenWindowsAutomatically = false;
+    private boolean         mUseDoubleTree = false;
+    private boolean         mUseWideViewport = false;
+    private boolean         mSupportMultipleWindows = false;
+    private boolean         mShrinksStandaloneImagesToFit = false;
+    private long            mMaximumDecodedImageSize = 0; // 0 means default
+    private boolean         mPrivateBrowsingEnabled = false;
+    private boolean         mSyntheticLinksEnabled = true;
+    // HTML5 API flags
+    private boolean         mAppCacheEnabled = false;
+    private boolean         mDatabaseEnabled = false;
+    private boolean         mDomStorageEnabled = false;
+    private boolean         mWorkersEnabled = false;  // only affects V8.
+    private boolean         mGeolocationEnabled = true;
+    private boolean         mXSSAuditorEnabled = false;
+    // HTML5 configuration parameters
+    private long            mAppCacheMaxSize = Long.MAX_VALUE;
+    private String          mAppCachePath = null;
+    private String          mDatabasePath = "";
+    // The WebCore DatabaseTracker only allows the database path to be set
+    // once. Keep track of when the path has been set.
+    private boolean         mDatabasePathHasBeenSet = false;
+    private String          mGeolocationDatabasePath = "";
+    // Don't need to synchronize the get/set methods as they
+    // are basic types, also none of these values are used in
+    // native WebCore code.
+    private ZoomDensity     mDefaultZoom = ZoomDensity.MEDIUM;
+    private RenderPriority  mRenderPriority = RenderPriority.NORMAL;
+    private int             mOverrideCacheMode = LOAD_DEFAULT;
+    private int             mDoubleTapZoom = 100;
+    private boolean         mSaveFormData = true;
+    private boolean         mAutoFillEnabled = false;
+    private boolean         mSavePassword = true;
+    private boolean         mLightTouchEnabled = false;
+    private boolean         mNeedInitialFocus = true;
+    private boolean         mNavDump = false;
+    private boolean         mSupportZoom = true;
+    private boolean         mBuiltInZoomControls = false;
+    private boolean         mDisplayZoomControls = true;
+    private boolean         mAllowFileAccess = true;
+    private boolean         mAllowContentAccess = true;
+    private boolean         mLoadWithOverviewMode = false;
+    private boolean         mEnableSmoothTransition = false;
+    private boolean         mForceUserScalable = false;
+
+    // AutoFill Profile data
+    /**
+     * @hide for now, pending API council approval.
+     */
+    public static class AutoFillProfile {
+        private int mUniqueId;
+        private String mFullName;
+        private String mEmailAddress;
+        private String mCompanyName;
+        private String mAddressLine1;
+        private String mAddressLine2;
+        private String mCity;
+        private String mState;
+        private String mZipCode;
+        private String mCountry;
+        private String mPhoneNumber;
+
+        public AutoFillProfile(int uniqueId, String fullName, String email,
+                String companyName, String addressLine1, String addressLine2,
+                String city, String state, String zipCode, String country,
+                String phoneNumber) {
+            mUniqueId = uniqueId;
+            mFullName = fullName;
+            mEmailAddress = email;
+            mCompanyName = companyName;
+            mAddressLine1 = addressLine1;
+            mAddressLine2 = addressLine2;
+            mCity = city;
+            mState = state;
+            mZipCode = zipCode;
+            mCountry = country;
+            mPhoneNumber = phoneNumber;
+        }
+
+        public int getUniqueId() { return mUniqueId; }
+        public String getFullName() { return mFullName; }
+        public String getEmailAddress() { return mEmailAddress; }
+        public String getCompanyName() { return mCompanyName; }
+        public String getAddressLine1() { return mAddressLine1; }
+        public String getAddressLine2() { return mAddressLine2; }
+        public String getCity() { return mCity; }
+        public String getState() { return mState; }
+        public String getZipCode() { return mZipCode; }
+        public String getCountry() { return mCountry; }
+        public String getPhoneNumber() { return mPhoneNumber; }
+    }
+
+
+    private AutoFillProfile mAutoFillProfile;
+
+    private boolean         mUseWebViewBackgroundForOverscroll = true;
+
+    // private WebSettings, not accessible by the host activity
+    static private int      mDoubleTapToastCount = 3;
+
+    private static final String PREF_FILE = "WebViewSettings";
+    private static final String DOUBLE_TAP_TOAST_COUNT = "double_tap_toast_count";
+
+    // Class to handle messages before WebCore is ready.
+    private class EventHandler {
+        // Message id for syncing
+        static final int SYNC = 0;
+        // Message id for setting priority
+        static final int PRIORITY = 1;
+        // Message id for writing double-tap toast count
+        static final int SET_DOUBLE_TAP_TOAST_COUNT = 2;
+        // Actual WebCore thread handler
+        private Handler mHandler;
+
+        private synchronized void createHandler() {
+            // as mRenderPriority can be set before thread is running, sync up
+            setRenderPriority();
+
+            // create a new handler
+            mHandler = new Handler() {
+                @Override
+                public void handleMessage(Message msg) {
+                    switch (msg.what) {
+                        case SYNC:
+                            synchronized (WebSettings.this) {
+                                if (mBrowserFrame.mNativeFrame != 0) {
+                                    nativeSync(mBrowserFrame.mNativeFrame);
+                                }
+                                mSyncPending = false;
+                            }
+                            break;
+
+                        case PRIORITY: {
+                            setRenderPriority();
+                            break;
+                        }
+
+                        case SET_DOUBLE_TAP_TOAST_COUNT: {
+                            SharedPreferences.Editor editor = mContext
+                                    .getSharedPreferences(PREF_FILE,
+                                            Context.MODE_PRIVATE).edit();
+                            editor.putInt(DOUBLE_TAP_TOAST_COUNT,
+                                    mDoubleTapToastCount);
+                            editor.commit();
+                            break;
+                        }
+                    }
+                }
+            };
+        }
+
+        private void setRenderPriority() {
+            synchronized (WebSettings.this) {
+                if (mRenderPriority == RenderPriority.NORMAL) {
+                    android.os.Process.setThreadPriority(
+                            android.os.Process.THREAD_PRIORITY_DEFAULT);
+                } else if (mRenderPriority == RenderPriority.HIGH) {
+                    android.os.Process.setThreadPriority(
+                            android.os.Process.THREAD_PRIORITY_FOREGROUND +
+                            android.os.Process.THREAD_PRIORITY_LESS_FAVORABLE);
+                } else if (mRenderPriority == RenderPriority.LOW) {
+                    android.os.Process.setThreadPriority(
+                            android.os.Process.THREAD_PRIORITY_BACKGROUND);
+                }
+            }
+        }
+
+        /**
+         * Send a message to the private queue or handler.
+         */
+        private synchronized boolean sendMessage(Message msg) {
+            if (mHandler != null) {
+                mHandler.sendMessage(msg);
+                return true;
+            } else {
+                return false;
+            }
+        }
+    }
+
+    // User agent strings.
+    private static final String DESKTOP_USERAGENT = "Mozilla/5.0 (X11; " +
+        "Linux x86_64) AppleWebKit/534.24 (KHTML, like Gecko) " +
+        "Chrome/11.0.696.34 Safari/534.24";
+    private static final String IPHONE_USERAGENT =
+            "Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_0 like Mac OS X; en-us)"
+            + " AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0"
+            + " Mobile/7A341 Safari/528.16";
+    private static Locale sLocale;
+    private static Object sLockForLocaleSettings;
+
+    /**
+     * Package constructor to prevent clients from creating a new settings
+     * instance.
+     */
+    WebSettings(Context context, WebView webview) {
+        mEventHandler = new EventHandler();
+        mContext = context;
+        mWebView = webview;
+        mDefaultTextEncoding = context.getString(com.android.internal.
+                                                 R.string.default_text_encoding);
+
+        if (sLockForLocaleSettings == null) {
+            sLockForLocaleSettings = new Object();
+            sLocale = Locale.getDefault();
+        }
+        mAcceptLanguage = getCurrentAcceptLanguage();
+        mUserAgent = getCurrentUserAgent();
+        mUseDefaultUserAgent = true;
+
+        mBlockNetworkLoads = mContext.checkPermission(
+                "android.permission.INTERNET", android.os.Process.myPid(),
+                android.os.Process.myUid()) != PackageManager.PERMISSION_GRANTED;
+    }
+
+    private static final String ACCEPT_LANG_FOR_US_LOCALE = "en-US";
+
+    /**
+     * Looks at sLocale and returns current AcceptLanguage String.
+     * @return Current AcceptLanguage String.
+     */
+    private String getCurrentAcceptLanguage() {
+        Locale locale;
+        synchronized(sLockForLocaleSettings) {
+            locale = sLocale;
+        }
+        StringBuilder buffer = new StringBuilder();
+        addLocaleToHttpAcceptLanguage(buffer, locale);
+
+        if (!Locale.US.equals(locale)) {
+            if (buffer.length() > 0) {
+                buffer.append(", ");
+            }
+            buffer.append(ACCEPT_LANG_FOR_US_LOCALE);
+        }
+
+        return buffer.toString();
+    }
+
+    /**
+     * Convert obsolete language codes, including Hebrew/Indonesian/Yiddish,
+     * to new standard.
+     */
+    private static String convertObsoleteLanguageCodeToNew(String langCode) {
+        if (langCode == null) {
+            return null;
+        }
+        if ("iw".equals(langCode)) {
+            // Hebrew
+            return "he";
+        } else if ("in".equals(langCode)) {
+            // Indonesian
+            return "id";
+        } else if ("ji".equals(langCode)) {
+            // Yiddish
+            return "yi";
+        }
+        return langCode;
+    }
+
+    private static void addLocaleToHttpAcceptLanguage(StringBuilder builder,
+                                                      Locale locale) {
+        String language = convertObsoleteLanguageCodeToNew(locale.getLanguage());
+        if (language != null) {
+            builder.append(language);
+            String country = locale.getCountry();
+            if (country != null) {
+                builder.append("-");
+                builder.append(country);
+            }
+        }
+    }
+
+    /**
+     * Looks at sLocale and mContext and returns current UserAgent String.
+     * @return Current UserAgent String.
+     */
+    private synchronized String getCurrentUserAgent() {
+        Locale locale;
+        synchronized(sLockForLocaleSettings) {
+            locale = sLocale;
+        }
+        StringBuffer buffer = new StringBuffer();
+        // Add version
+        final String version = Build.VERSION.RELEASE;
+        if (version.length() > 0) {
+            if (Character.isDigit(version.charAt(0))) {
+                // Release is a version, eg "3.1"
+                buffer.append(version);
+            } else {
+                // Release is a codename, eg "Honeycomb"
+                // In this case, use the previous release's version
+                buffer.append(PREVIOUS_VERSION);
+            }
+        } else {
+            // default to "1.0"
+            buffer.append("1.0");
+        }
+        buffer.append("; ");
+        final String language = locale.getLanguage();
+        if (language != null) {
+            buffer.append(convertObsoleteLanguageCodeToNew(language));
+            final String country = locale.getCountry();
+            if (country != null) {
+                buffer.append("-");
+                buffer.append(country.toLowerCase());
+            }
+        } else {
+            // default to "en"
+            buffer.append("en");
+        }
+        buffer.append(";");
+        // add the model for the release build
+        if ("REL".equals(Build.VERSION.CODENAME)) {
+            final String model = Build.MODEL;
+            if (model.length() > 0) {
+                buffer.append(" ");
+                buffer.append(model);
+            }
+        }
+        final String id = Build.ID;
+        if (id.length() > 0) {
+            buffer.append(" Build/");
+            buffer.append(id);
+        }
+        String mobile = mContext.getResources().getText(
+            com.android.internal.R.string.web_user_agent_target_content).toString();
+        final String base = mContext.getResources().getText(
+                com.android.internal.R.string.web_user_agent).toString();
+        return String.format(base, buffer, mobile);
+    }
+
+    /**
+     * Enables dumping the pages navigation cache to a text file.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public void setNavDump(boolean enabled) {
+        mNavDump = enabled;
+    }
+
+    /**
+     * Returns true if dumping the navigation cache is enabled.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public boolean getNavDump() {
+        return mNavDump;
+    }
+
+    /**
+     * Set whether the WebView supports zoom
+     */
+    public void setSupportZoom(boolean support) {
+        mSupportZoom = support;
+        mWebView.updateMultiTouchSupport(mContext);
+    }
+
+    /**
+     * Returns whether the WebView supports zoom
+     */
+    public boolean supportZoom() {
+        return mSupportZoom;
+    }
+
+    /**
+     * Sets whether the zoom mechanism built into WebView is used.
+     */
+    public void setBuiltInZoomControls(boolean enabled) {
+        mBuiltInZoomControls = enabled;
+        mWebView.updateMultiTouchSupport(mContext);
+    }
+
+    /**
+     * Returns true if the zoom mechanism built into WebView is being used.
+     */
+    public boolean getBuiltInZoomControls() {
+        return mBuiltInZoomControls;
+    }
+
+    /**
+     * Sets whether the on screen zoom buttons are used.
+     * A combination of built in zoom controls enabled
+     * and on screen zoom controls disabled allows for pinch to zoom
+     * to work without the on screen controls
+     */
+    public void setDisplayZoomControls(boolean enabled) {
+        mDisplayZoomControls = enabled;
+        mWebView.updateMultiTouchSupport(mContext);
+    }
+
+    /**
+     * Returns true if the on screen zoom buttons are being used.
+     */
+    public boolean getDisplayZoomControls() {
+        return mDisplayZoomControls;
+    }
+
+    /**
+     * Enable or disable file access within WebView. File access is enabled by
+     * default.  Note that this enables or disables file system access only.
+     * Assets and resources are still accessible using file:///android_asset and
+     * file:///android_res.
+     */
+    public void setAllowFileAccess(boolean allow) {
+        mAllowFileAccess = allow;
+    }
+
+    /**
+     * Returns true if this WebView supports file access.
+     */
+    public boolean getAllowFileAccess() {
+        return mAllowFileAccess;
+    }
+
+    /**
+     * Enable or disable content url access within WebView.  Content url access
+     * allows WebView to load content from a content provider installed in the
+     * system.  The default is enabled.
+     */
+    public void setAllowContentAccess(boolean allow) {
+        mAllowContentAccess = allow;
+    }
+
+    /**
+     * Returns true if this WebView supports content url access.
+     */
+    public boolean getAllowContentAccess() {
+        return mAllowContentAccess;
+    }
+
+    /**
+     * Set whether the WebView loads a page with overview mode.
+     */
+    public void setLoadWithOverviewMode(boolean overview) {
+        mLoadWithOverviewMode = overview;
+    }
+
+    /**
+     * Returns true if this WebView loads page with overview mode
+     */
+    public boolean getLoadWithOverviewMode() {
+        return mLoadWithOverviewMode;
+    }
+
+    /**
+     * Set whether the WebView will enable smooth transition while panning or
+     * zooming or while the window hosting the WebView does not have focus.
+     * If it is true, WebView will choose a solution to maximize the performance.
+     * e.g. the WebView's content may not be updated during the transition.
+     * If it is false, WebView will keep its fidelity. The default value is false.
+     */
+    public void setEnableSmoothTransition(boolean enable) {
+        mEnableSmoothTransition = enable;
+    }
+
+    /**
+     * Returns true if the WebView enables smooth transition while panning or
+     * zooming.
+     */
+    public boolean enableSmoothTransition() {
+        return mEnableSmoothTransition;
+    }
+
+    /**
+     * Set whether the WebView uses its background for over scroll background.
+     * If true, it will use the WebView's background. If false, it will use an
+     * internal pattern. Default is true.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public void setUseWebViewBackgroundForOverscrollBackground(boolean view) {
+        mUseWebViewBackgroundForOverscroll = view;
+    }
+
+    /**
+     * Returns true if this WebView uses WebView's background instead of
+     * internal pattern for over scroll background.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public boolean getUseWebViewBackgroundForOverscrollBackground() {
+        return mUseWebViewBackgroundForOverscroll;
+    }
+
+    /**
+     * Store whether the WebView is saving form data.
+     */
+    public void setSaveFormData(boolean save) {
+        mSaveFormData = save;
+    }
+
+    /**
+     *  Return whether the WebView is saving form data and displaying prior
+     *  entries/autofill++.  Always false in private browsing mode.
+     */
+    public boolean getSaveFormData() {
+        return mSaveFormData && !mPrivateBrowsingEnabled;
+    }
+
+    /**
+     *  Store whether the WebView is saving password.
+     */
+    public void setSavePassword(boolean save) {
+        mSavePassword = save;
+    }
+
+    /**
+     *  Return whether the WebView is saving password.
+     */
+    public boolean getSavePassword() {
+        return mSavePassword;
+    }
+
+    /**
+     * Set the text zoom of the page in percent. Default is 100.
+     * @param textZoom A percent value for increasing or decreasing the text.
+     */
+    public synchronized void setTextZoom(int textZoom) {
+        if (mTextSize != textZoom) {
+            if (WebView.mLogEvent) {
+                EventLog.writeEvent(EventLogTags.BROWSER_TEXT_SIZE_CHANGE,
+                        mTextSize, textZoom);
+            }
+            mTextSize = textZoom;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the text zoom of the page in percent.
+     * @return A percent value describing the text zoom.
+     * @see setTextSizeZoom
+     */
+    public synchronized int getTextZoom() {
+        return mTextSize;
+    }
+
+    /**
+     * Set the text size of the page.
+     * @param t A TextSize value for increasing or decreasing the text.
+     * @see WebSettings.TextSize
+     * @deprecated Use {@link #setTextZoom(int)} instead
+     */
+    public synchronized void setTextSize(TextSize t) {
+        setTextZoom(t.value);
+    }
+
+    /**
+     * Get the text size of the page. If the text size was previously specified
+     * in percent using {@link #setTextZoom(int)}, this will return
+     * the closest matching {@link TextSize}.
+     * @return A TextSize enum value describing the text size.
+     * @see WebSettings.TextSize
+     * @deprecated Use {@link #getTextZoom()} instead
+     */
+    public synchronized TextSize getTextSize() {
+        TextSize closestSize = null;
+        int smallestDelta = Integer.MAX_VALUE;
+        for (TextSize size : TextSize.values()) {
+            int delta = Math.abs(mTextSize - size.value);
+            if (delta == 0) {
+                return size;
+            }
+            if (delta < smallestDelta) {
+                smallestDelta = delta;
+                closestSize = size;
+            }
+        }
+        return closestSize != null ? closestSize : TextSize.NORMAL;
+    }
+
+    /**
+     * Set the double-tap zoom of the page in percent. Default is 100.
+     * @param doubleTapZoom A percent value for increasing or decreasing the double-tap zoom.
+     * @hide
+     */
+    public void setDoubleTapZoom(int doubleTapZoom) {
+        if (mDoubleTapZoom != doubleTapZoom) {
+            mDoubleTapZoom = doubleTapZoom;
+            mWebView.updateDoubleTapZoom(doubleTapZoom);
+        }
+    }
+
+    /**
+     * Get the double-tap zoom of the page in percent.
+     * @return A percent value describing the double-tap zoom.
+     * @hide
+     */
+    public int getDoubleTapZoom() {
+        return mDoubleTapZoom;
+    }
+
+    /**
+     * Set the default zoom density of the page. This should be called from UI
+     * thread.
+     * @param zoom A ZoomDensity value
+     * @see WebSettings.ZoomDensity
+     */
+    public void setDefaultZoom(ZoomDensity zoom) {
+        if (mDefaultZoom != zoom) {
+            mDefaultZoom = zoom;
+            mWebView.adjustDefaultZoomDensity(zoom.value);
+        }
+    }
+
+    /**
+     * Get the default zoom density of the page. This should be called from UI
+     * thread.
+     * @return A ZoomDensity value
+     * @see WebSettings.ZoomDensity
+     */
+    public ZoomDensity getDefaultZoom() {
+        return mDefaultZoom;
+    }
+
+    /**
+     * Enables using light touches to make a selection and activate mouseovers.
+     */
+    public void setLightTouchEnabled(boolean enabled) {
+        mLightTouchEnabled = enabled;
+    }
+
+    /**
+     * Returns true if light touches are enabled.
+     */
+    public boolean getLightTouchEnabled() {
+        return mLightTouchEnabled;
+    }
+
+    /**
+     * @deprecated This setting controlled a rendering optimization
+     * that is no longer present. Setting it now has no effect.
+     */
+    @Deprecated
+    public synchronized void setUseDoubleTree(boolean use) {
+        return;
+    }
+
+    /**
+     * @deprecated This setting controlled a rendering optimization
+     * that is no longer present. Setting it now has no effect.
+     */
+    @Deprecated
+    public synchronized boolean getUseDoubleTree() {
+        return false;
+    }
+
+    /**
+     * Tell the WebView about user-agent string.
+     * @param ua 0 if the WebView should use an Android user-agent string,
+     *           1 if the WebView should use a desktop user-agent string.
+     *
+     * @deprecated Please use setUserAgentString instead.
+     */
+    @Deprecated
+    public synchronized void setUserAgent(int ua) {
+        String uaString = null;
+        if (ua == 1) {
+            if (DESKTOP_USERAGENT.equals(mUserAgent)) {
+                return; // do nothing
+            } else {
+                uaString = DESKTOP_USERAGENT;
+            }
+        } else if (ua == 2) {
+            if (IPHONE_USERAGENT.equals(mUserAgent)) {
+                return; // do nothing
+            } else {
+                uaString = IPHONE_USERAGENT;
+            }
+        } else if (ua != 0) {
+            return; // do nothing
+        }
+        setUserAgentString(uaString);
+    }
+
+    /**
+     * Return user-agent as int
+     * @return int  0 if the WebView is using an Android user-agent string.
+     *              1 if the WebView is using a desktop user-agent string.
+     *             -1 if the WebView is using user defined user-agent string.
+     *
+     * @deprecated Please use getUserAgentString instead.
+     */
+    @Deprecated
+    public synchronized int getUserAgent() {
+        if (DESKTOP_USERAGENT.equals(mUserAgent)) {
+            return 1;
+        } else if (IPHONE_USERAGENT.equals(mUserAgent)) {
+            return 2;
+        } else if (mUseDefaultUserAgent) {
+            return 0;
+        }
+        return -1;
+    }
+
+    /**
+     * Tell the WebView to use the wide viewport
+     */
+    public synchronized void setUseWideViewPort(boolean use) {
+        if (mUseWideViewport != use) {
+            mUseWideViewport = use;
+            postSync();
+        }
+    }
+
+    /**
+     * @return True if the WebView is using a wide viewport
+     */
+    public synchronized boolean getUseWideViewPort() {
+        return mUseWideViewport;
+    }
+
+    /**
+     * Tell the WebView whether it supports multiple windows. TRUE means
+     *         that {@link WebChromeClient#onCreateWindow(WebView, boolean,
+     *         boolean, Message)} is implemented by the host application.
+     */
+    public synchronized void setSupportMultipleWindows(boolean support) {
+        if (mSupportMultipleWindows != support) {
+            mSupportMultipleWindows = support;
+            postSync();
+        }
+    }
+
+    /**
+     * @return True if the WebView is supporting multiple windows. This means
+     *         that {@link WebChromeClient#onCreateWindow(WebView, boolean,
+     *         boolean, Message)} is implemented by the host application.
+     */
+    public synchronized boolean supportMultipleWindows() {
+        return mSupportMultipleWindows;
+    }
+
+    /**
+     * Set the underlying layout algorithm. This will cause a relayout of the
+     * WebView.
+     * @param l A LayoutAlgorithm enum specifying the algorithm to use.
+     * @see WebSettings.LayoutAlgorithm
+     */
+    public synchronized void setLayoutAlgorithm(LayoutAlgorithm l) {
+        // XXX: This will only be affective if libwebcore was built with
+        // ANDROID_LAYOUT defined.
+        if (mLayoutAlgorithm != l) {
+            mLayoutAlgorithm = l;
+            postSync();
+        }
+    }
+
+    /**
+     * Return the current layout algorithm. The default is NARROW_COLUMNS.
+     * @return LayoutAlgorithm enum value describing the layout algorithm
+     *         being used.
+     * @see WebSettings.LayoutAlgorithm
+     */
+    public synchronized LayoutAlgorithm getLayoutAlgorithm() {
+        return mLayoutAlgorithm;
+    }
+
+    /**
+     * Set the standard font family name.
+     * @param font A font family name.
+     */
+    public synchronized void setStandardFontFamily(String font) {
+        if (font != null && !font.equals(mStandardFontFamily)) {
+            mStandardFontFamily = font;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the standard font family name. The default is "sans-serif".
+     * @return The standard font family name as a string.
+     */
+    public synchronized String getStandardFontFamily() {
+        return mStandardFontFamily;
+    }
+
+    /**
+     * Set the fixed font family name.
+     * @param font A font family name.
+     */
+    public synchronized void setFixedFontFamily(String font) {
+        if (font != null && !font.equals(mFixedFontFamily)) {
+            mFixedFontFamily = font;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the fixed font family name. The default is "monospace".
+     * @return The fixed font family name as a string.
+     */
+    public synchronized String getFixedFontFamily() {
+        return mFixedFontFamily;
+    }
+
+    /**
+     * Set the sans-serif font family name.
+     * @param font A font family name.
+     */
+    public synchronized void setSansSerifFontFamily(String font) {
+        if (font != null && !font.equals(mSansSerifFontFamily)) {
+            mSansSerifFontFamily = font;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the sans-serif font family name.
+     * @return The sans-serif font family name as a string.
+     */
+    public synchronized String getSansSerifFontFamily() {
+        return mSansSerifFontFamily;
+    }
+
+    /**
+     * Set the serif font family name. The default is "sans-serif".
+     * @param font A font family name.
+     */
+    public synchronized void setSerifFontFamily(String font) {
+        if (font != null && !font.equals(mSerifFontFamily)) {
+            mSerifFontFamily = font;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the serif font family name. The default is "serif".
+     * @return The serif font family name as a string.
+     */
+    public synchronized String getSerifFontFamily() {
+        return mSerifFontFamily;
+    }
+
+    /**
+     * Set the cursive font family name.
+     * @param font A font family name.
+     */
+    public synchronized void setCursiveFontFamily(String font) {
+        if (font != null && !font.equals(mCursiveFontFamily)) {
+            mCursiveFontFamily = font;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the cursive font family name. The default is "cursive".
+     * @return The cursive font family name as a string.
+     */
+    public synchronized String getCursiveFontFamily() {
+        return mCursiveFontFamily;
+    }
+
+    /**
+     * Set the fantasy font family name.
+     * @param font A font family name.
+     */
+    public synchronized void setFantasyFontFamily(String font) {
+        if (font != null && !font.equals(mFantasyFontFamily)) {
+            mFantasyFontFamily = font;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the fantasy font family name. The default is "fantasy".
+     * @return The fantasy font family name as a string.
+     */
+    public synchronized String getFantasyFontFamily() {
+        return mFantasyFontFamily;
+    }
+
+    /**
+     * Set the minimum font size.
+     * @param size A non-negative integer between 1 and 72.
+     * Any number outside the specified range will be pinned.
+     */
+    public synchronized void setMinimumFontSize(int size) {
+        size = pin(size);
+        if (mMinimumFontSize != size) {
+            mMinimumFontSize = size;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the minimum font size. The default is 8.
+     * @return A non-negative integer between 1 and 72.
+     */
+    public synchronized int getMinimumFontSize() {
+        return mMinimumFontSize;
+    }
+
+    /**
+     * Set the minimum logical font size.
+     * @param size A non-negative integer between 1 and 72.
+     * Any number outside the specified range will be pinned.
+     */
+    public synchronized void setMinimumLogicalFontSize(int size) {
+        size = pin(size);
+        if (mMinimumLogicalFontSize != size) {
+            mMinimumLogicalFontSize = size;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the minimum logical font size. The default is 8.
+     * @return A non-negative integer between 1 and 72.
+     */
+    public synchronized int getMinimumLogicalFontSize() {
+        return mMinimumLogicalFontSize;
+    }
+
+    /**
+     * Set the default font size.
+     * @param size A non-negative integer between 1 and 72.
+     * Any number outside the specified range will be pinned.
+     */
+    public synchronized void setDefaultFontSize(int size) {
+        size = pin(size);
+        if (mDefaultFontSize != size) {
+            mDefaultFontSize = size;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the default font size. The default is 16.
+     * @return A non-negative integer between 1 and 72.
+     */
+    public synchronized int getDefaultFontSize() {
+        return mDefaultFontSize;
+    }
+
+    /**
+     * Set the default fixed font size.
+     * @param size A non-negative integer between 1 and 72.
+     * Any number outside the specified range will be pinned.
+     */
+    public synchronized void setDefaultFixedFontSize(int size) {
+        size = pin(size);
+        if (mDefaultFixedFontSize != size) {
+            mDefaultFixedFontSize = size;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the default fixed font size. The default is 16.
+     * @return A non-negative integer between 1 and 72.
+     */
+    public synchronized int getDefaultFixedFontSize() {
+        return mDefaultFixedFontSize;
+    }
+
+    /**
+     * Set the number of pages cached by the WebKit for the history navigation.
+     * @param size A non-negative integer between 0 (no cache) and 20 (max).
+     * @hide
+     */
+    public synchronized void setPageCacheCapacity(int size) {
+        if (size < 0) size = 0;
+        if (size > 20) size = 20;
+        if (mPageCacheCapacity != size) {
+            mPageCacheCapacity = size;
+            postSync();
+        }
+    }
+
+    /**
+     * Sets whether the WebView should load image resources. Note that this method
+     * controls loading of all images, including those embedded using the data
+     * URI scheme. Use {@link #setBlockNetworkImage} to control loading only
+     * of images specified using network URI schemes. Note that if the value of this
+     * setting is changed from false to true, all images resources referenced
+     * by content currently displayed by the WebView are loaded automatically.
+     * @param flag Whether the WebView should load image resources.
+     */
+    public synchronized void setLoadsImagesAutomatically(boolean flag) {
+        if (mLoadsImagesAutomatically != flag) {
+            mLoadsImagesAutomatically = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Returns true if the WebView loads image resources. This includes
+     * images embedded using the data URI scheme. The default is true.
+     * @return True if the WebView loads image resources.
+     */
+    public synchronized boolean getLoadsImagesAutomatically() {
+        return mLoadsImagesAutomatically;
+    }
+
+    /**
+     * Sets whether the WebView should not load image resources from the
+     * network (resources accessed via http and https URI schemes).  Note
+     * that this method has no effect unless
+     * {@link #getLoadsImagesAutomatically} returns true. Also note that
+     * disabling all network loads using {@link #setBlockNetworkLoads}
+     * will also prevent network images from loading, even if this flag is set
+     * to false. When the value of this setting is changed from true to false,
+     * network images resources referenced by content currently displayed by
+     * the WebView are fetched automatically.
+     * @param flag Whether the WebView should not load image resources from
+     * the network.
+     * @see #setBlockNetworkLoads
+     */
+    public synchronized void setBlockNetworkImage(boolean flag) {
+        if (mBlockNetworkImage != flag) {
+            mBlockNetworkImage = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Returns true if the WebView does not load image resources from the network.
+     * The default is false.
+     * @return True if the WebView does not load image resources from the network.
+     */
+    public synchronized boolean getBlockNetworkImage() {
+        return mBlockNetworkImage;
+    }
+
+    /**
+     * Sets whether the WebView should not load resources from the network.
+     * Use {@link #setBlockNetworkImage} to only avoid loading
+     * image resources. Note that if the value of this setting is
+     * changed from true to false, network resources referenced by content
+     * currently displayed by the WebView are not fetched until
+     * {@link android.webkit.WebView#reload} is called.
+     * If the application does not have the
+     * {@link android.Manifest.permission#INTERNET} permission, attempts to set
+     * a value of false will cause a {@link java.lang.SecurityException}
+     * to be thrown.
+     * @param flag Whether the WebView should not load any resources
+     * from the network.
+     * @see android.webkit.WebView#reload
+     */
+    public synchronized void setBlockNetworkLoads(boolean flag) {
+        if (mBlockNetworkLoads != flag) {
+            mBlockNetworkLoads = flag;
+            verifyNetworkAccess();
+            postSync();
+        }
+    }
+
+    /**
+     * Returns true if the WebView does not load any resources from the network.
+     * The default value is false if the application has the
+     * {@link android.Manifest.permission#INTERNET} permission, otherwise it is
+     * true.
+     * @return True if the WebView does not load any resources from the network.
+     */
+    public synchronized boolean getBlockNetworkLoads() {
+        return mBlockNetworkLoads;
+    }
+
+
+    private void verifyNetworkAccess() {
+        if (!mBlockNetworkLoads) {
+            if (mContext.checkPermission("android.permission.INTERNET",
+                    android.os.Process.myPid(), android.os.Process.myUid()) !=
+                        PackageManager.PERMISSION_GRANTED) {
+                throw new SecurityException
+                        ("Permission denied - " +
+                                "application missing INTERNET permission");
+            }
+        }
+    }
+
+    /**
+     * Tell the WebView to enable javascript execution.
+     * @param flag True if the WebView should execute javascript.
+     */
+    public synchronized void setJavaScriptEnabled(boolean flag) {
+        if (mJavaScriptEnabled != flag) {
+            mJavaScriptEnabled = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Tell the WebView to use Skia's hardware accelerated rendering path
+     * @param flag True if the WebView should use Skia's hw-accel path
+     * @hide
+     */
+    public synchronized void setHardwareAccelSkiaEnabled(boolean flag) {
+        if (mHardwareAccelSkia != flag) {
+            mHardwareAccelSkia = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * @return True if the WebView is using hardware accelerated skia
+     * @hide
+     */
+    public synchronized boolean getHardwareAccelSkiaEnabled() {
+        return mHardwareAccelSkia;
+    }
+
+    /**
+     * Tell the WebView to show the visual indicator
+     * @param flag True if the WebView should show the visual indicator
+     * @hide
+     */
+    public synchronized void setShowVisualIndicator(boolean flag) {
+        if (mShowVisualIndicator != flag) {
+            mShowVisualIndicator = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * @return True if the WebView is showing the visual indicator
+     * @hide
+     */
+    public synchronized boolean getShowVisualIndicator() {
+        return mShowVisualIndicator;
+    }
+
+    /**
+     * Tell the WebView to enable plugins.
+     * @param flag True if the WebView should load plugins.
+     * @deprecated This method has been deprecated in favor of
+     *             {@link #setPluginState}
+     */
+    @Deprecated
+    public synchronized void setPluginsEnabled(boolean flag) {
+        setPluginState(flag ? PluginState.ON : PluginState.OFF);
+    }
+
+    /**
+     * Tell the WebView to enable, disable, or have plugins on demand. On
+     * demand mode means that if a plugin exists that can handle the embedded
+     * content, a placeholder icon will be shown instead of the plugin. When
+     * the placeholder is clicked, the plugin will be enabled.
+     * @param state One of the PluginState values.
+     */
+    public synchronized void setPluginState(PluginState state) {
+        if (mPluginState != state) {
+            mPluginState = state;
+            postSync();
+        }
+    }
+
+    /**
+     * Set a custom path to plugins used by the WebView. This method is
+     * obsolete since each plugin is now loaded from its own package.
+     * @param pluginsPath String path to the directory containing plugins.
+     * @deprecated This method is no longer used as plugins are loaded from
+     * their own APK via the system's package manager.
+     */
+    @Deprecated
+    public synchronized void setPluginsPath(String pluginsPath) {
+    }
+
+    /**
+     * Set the path to where database storage API databases should be saved.
+     * Nota that the WebCore Database Tracker only allows the path to be set once.
+     * This will update WebCore when the Sync runs in the C++ side.
+     * @param databasePath String path to the directory where databases should
+     *     be saved. May be the empty string but should never be null.
+     */
+    public synchronized void setDatabasePath(String databasePath) {
+        if (databasePath != null && !mDatabasePathHasBeenSet) {
+            mDatabasePath = databasePath;
+            mDatabasePathHasBeenSet = true;
+            postSync();
+        }
+    }
+
+    /**
+     * Set the path where the Geolocation permissions database should be saved.
+     * This will update WebCore when the Sync runs in the C++ side.
+     * @param databasePath String path to the directory where the Geolocation
+     *     permissions database should be saved. May be the empty string but
+     *     should never be null.
+     */
+    public synchronized void setGeolocationDatabasePath(String databasePath) {
+        if (databasePath != null
+                && !databasePath.equals(mGeolocationDatabasePath)) {
+            mGeolocationDatabasePath = databasePath;
+            postSync();
+        }
+    }
+
+    /**
+     * Enable or disable the Application Cache API.
+     * @param flag Whether to enable the Application Cache API.
+     */
+    public synchronized void setAppCacheEnabled(boolean flag) {
+        if (mAppCacheEnabled != flag) {
+            mAppCacheEnabled = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Set the path used by the Application Cache API to store files. This
+     * setting is applied to all WebViews in the application. In order for the
+     * Application Cache API to function, this method must be called with a
+     * path which exists and is writable by the application. This method may
+     * only be called once: repeated calls are ignored.
+     * @param path Path to the directory that should be used to store Application
+     * Cache files.
+     */
+    public synchronized void setAppCachePath(String path) {
+        // We test for a valid path and for repeated setting on the native
+        // side, but we can avoid syncing in some simple cases. 
+        if (mAppCachePath == null && path != null && !path.isEmpty()) {
+            mAppCachePath = path;
+            postSync();
+        }
+    }
+
+    /**
+     * Set the maximum size for the Application Caches content.
+     * @param appCacheMaxSize the maximum size in bytes.
+     */
+    public synchronized void setAppCacheMaxSize(long appCacheMaxSize) {
+        if (appCacheMaxSize != mAppCacheMaxSize) {
+            mAppCacheMaxSize = appCacheMaxSize;
+            postSync();
+        }
+    }
+
+    /**
+     * Set whether the database storage API is enabled.
+     * @param flag boolean True if the WebView should use the database storage
+     *     API.
+     */
+    public synchronized void setDatabaseEnabled(boolean flag) {
+       if (mDatabaseEnabled != flag) {
+           mDatabaseEnabled = flag;
+           postSync();
+       }
+    }
+
+    /**
+     * Set whether the DOM storage API is enabled.
+     * @param flag boolean True if the WebView should use the DOM storage
+     *     API.
+     */
+    public synchronized void setDomStorageEnabled(boolean flag) {
+       if (mDomStorageEnabled != flag) {
+           mDomStorageEnabled = flag;
+           postSync();
+       }
+    }
+
+    /**
+     * Returns true if the DOM Storage API's are enabled.
+     * @return True if the DOM Storage API's are enabled.
+     */
+    public synchronized boolean getDomStorageEnabled() {
+       return mDomStorageEnabled;
+    }
+
+    /**
+     * Return the path to where database storage API databases are saved for
+     * the current WebView.
+     * @return the String path to the database storage API databases.
+     */
+    public synchronized String getDatabasePath() {
+        return mDatabasePath;
+    }
+
+    /**
+     * Returns true if database storage API is enabled.
+     * @return True if the database storage API is enabled.
+     */
+    public synchronized boolean getDatabaseEnabled() {
+        return mDatabaseEnabled;
+    }
+
+    /**
+     * Tell the WebView to enable WebWorkers API.
+     * @param flag True if the WebView should enable WebWorkers.
+     * Note that this flag only affects V8. JSC does not have
+     * an equivalent setting.
+     * @hide
+     */
+    public synchronized void setWorkersEnabled(boolean flag) {
+        if (mWorkersEnabled != flag) {
+            mWorkersEnabled = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Sets whether Geolocation is enabled.
+     * @param flag Whether Geolocation should be enabled.
+     */
+    public synchronized void setGeolocationEnabled(boolean flag) {
+        if (mGeolocationEnabled != flag) {
+            mGeolocationEnabled = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Sets whether XSS Auditor is enabled.
+     * @param flag Whether XSS Auditor should be enabled.
+     * @hide Only used by LayoutTestController.
+     */
+    public synchronized void setXSSAuditorEnabled(boolean flag) {
+        if (mXSSAuditorEnabled != flag) {
+            mXSSAuditorEnabled = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Return true if javascript is enabled. <b>Note: The default is false.</b>
+     * @return True if javascript is enabled.
+     */
+    public synchronized boolean getJavaScriptEnabled() {
+        return mJavaScriptEnabled;
+    }
+
+    /**
+     * Return true if plugins are enabled.
+     * @return True if plugins are enabled.
+     * @deprecated This method has been replaced by {@link #getPluginState}
+     */
+    @Deprecated
+    public synchronized boolean getPluginsEnabled() {
+        return mPluginState == PluginState.ON;
+    }
+
+    /**
+     * Return the current plugin state.
+     * @return A value corresponding to the enum PluginState.
+     */
+    public synchronized PluginState getPluginState() {
+        return mPluginState;
+    }
+
+    /**
+     * Returns the directory that contains the plugin libraries. This method is
+     * obsolete since each plugin is now loaded from its own package.
+     * @return An empty string.
+     * @deprecated This method is no longer used as plugins are loaded from
+     * their own APK via the system's package manager.
+     */
+    @Deprecated
+    public synchronized String getPluginsPath() {
+        return "";
+    }
+
+    /**
+     * Tell javascript to open windows automatically. This applies to the
+     * javascript function window.open().
+     * @param flag True if javascript can open windows automatically.
+     */
+    public synchronized void setJavaScriptCanOpenWindowsAutomatically(
+            boolean flag) {
+        if (mJavaScriptCanOpenWindowsAutomatically != flag) {
+            mJavaScriptCanOpenWindowsAutomatically = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * Return true if javascript can open windows automatically. The default
+     * is false.
+     * @return True if javascript can open windows automatically during
+     *         window.open().
+     */
+    public synchronized boolean getJavaScriptCanOpenWindowsAutomatically() {
+        return mJavaScriptCanOpenWindowsAutomatically;
+    }
+
+    /**
+     * Set the default text encoding name to use when decoding html pages.
+     * @param encoding The text encoding name.
+     */
+    public synchronized void setDefaultTextEncodingName(String encoding) {
+        if (encoding != null && !encoding.equals(mDefaultTextEncoding)) {
+            mDefaultTextEncoding = encoding;
+            postSync();
+        }
+    }
+
+    /**
+     * Get the default text encoding name. The default is "Latin-1".
+     * @return The default text encoding name as a string.
+     */
+    public synchronized String getDefaultTextEncodingName() {
+        return mDefaultTextEncoding;
+    }
+
+    /**
+     * Set the WebView's user-agent string. If the string "ua" is null or empty,
+     * it will use the system default user-agent string.
+     */
+    public synchronized void setUserAgentString(String ua) {
+        if (ua == null || ua.length() == 0) {
+            synchronized(sLockForLocaleSettings) {
+                Locale currentLocale = Locale.getDefault();
+                if (!sLocale.equals(currentLocale)) {
+                    sLocale = currentLocale;
+                    mAcceptLanguage = getCurrentAcceptLanguage();
+                }
+            }
+            ua = getCurrentUserAgent();
+            mUseDefaultUserAgent = true;
+        } else  {
+            mUseDefaultUserAgent = false;
+        }
+
+        if (!ua.equals(mUserAgent)) {
+            mUserAgent = ua;
+            postSync();
+        }
+    }
+
+    /**
+     * Return the WebView's user-agent string.
+     */
+    public synchronized String getUserAgentString() {
+        if (DESKTOP_USERAGENT.equals(mUserAgent) ||
+                IPHONE_USERAGENT.equals(mUserAgent) ||
+                !mUseDefaultUserAgent) {
+            return mUserAgent;
+        }
+
+        boolean doPostSync = false;
+        synchronized(sLockForLocaleSettings) {
+            Locale currentLocale = Locale.getDefault();
+            if (!sLocale.equals(currentLocale)) {
+                sLocale = currentLocale;
+                mUserAgent = getCurrentUserAgent();
+                mAcceptLanguage = getCurrentAcceptLanguage();
+                doPostSync = true;
+            }
+        }
+        if (doPostSync) {
+            postSync();
+        }
+        return mUserAgent;
+    }
+
+    /* package api to grab the Accept Language string. */
+    /*package*/ synchronized String getAcceptLanguage() {
+        synchronized(sLockForLocaleSettings) {
+            Locale currentLocale = Locale.getDefault();
+            if (!sLocale.equals(currentLocale)) {
+                sLocale = currentLocale;
+                mAcceptLanguage = getCurrentAcceptLanguage();
+            }
+        }
+        return mAcceptLanguage;
+    }
+
+    /* package */ boolean isNarrowColumnLayout() {
+        return getLayoutAlgorithm() == LayoutAlgorithm.NARROW_COLUMNS;
+    }
+
+    /**
+     * Tell the WebView whether it needs to set a node to have focus when
+     * {@link WebView#requestFocus(int, android.graphics.Rect)} is called.
+     *
+     * @param flag
+     */
+    public void setNeedInitialFocus(boolean flag) {
+        if (mNeedInitialFocus != flag) {
+            mNeedInitialFocus = flag;
+        }
+    }
+
+    /* Package api to get the choice whether it needs to set initial focus. */
+    /* package */ boolean getNeedInitialFocus() {
+        return mNeedInitialFocus;
+    }
+
+    /**
+     * Set the priority of the Render thread. Unlike the other settings, this
+     * one only needs to be called once per process. The default is NORMAL.
+     *
+     * @param priority RenderPriority, can be normal, high or low.
+     */
+    public synchronized void setRenderPriority(RenderPriority priority) {
+        if (mRenderPriority != priority) {
+            mRenderPriority = priority;
+            mEventHandler.sendMessage(Message.obtain(null,
+                    EventHandler.PRIORITY));
+        }
+    }
+
+    /**
+     * Override the way the cache is used. The way the cache is used is based
+     * on the navigation option. For a normal page load, the cache is checked
+     * and content is re-validated as needed. When navigating back, content is
+     * not revalidated, instead the content is just pulled from the cache.
+     * This function allows the client to override this behavior.
+     * @param mode One of the LOAD_ values.
+     */
+    public void setCacheMode(int mode) {
+        if (mode != mOverrideCacheMode) {
+            mOverrideCacheMode = mode;
+            postSync();
+        }
+    }
+
+    /**
+     * Return the current setting for overriding the cache mode. For a full
+     * description, see the {@link #setCacheMode(int)} function.
+     */
+    public int getCacheMode() {
+        return mOverrideCacheMode;
+    }
+
+    /**
+     * If set, webkit alternately shrinks and expands images viewed outside
+     * of an HTML page to fit the screen. This conflicts with attempts by
+     * the UI to zoom in and out of an image, so it is set false by default.
+     * @param shrink Set true to let webkit shrink the standalone image to fit.
+     * {@hide}
+     */
+    public void setShrinksStandaloneImagesToFit(boolean shrink) {
+        if (mShrinksStandaloneImagesToFit != shrink) {
+            mShrinksStandaloneImagesToFit = shrink;
+            postSync();
+        }
+     }
+
+    /**
+     * Specify the maximum decoded image size. The default is
+     * 2 megs for small memory devices and 8 megs for large memory devices.
+     * @param size The maximum decoded size, or zero to set to the default.
+     * @hide
+     */
+    public void setMaximumDecodedImageSize(long size) {
+        if (mMaximumDecodedImageSize != size) {
+            mMaximumDecodedImageSize = size;
+            postSync();
+        }
+    }
+
+    /**
+     * Returns whether to use fixed viewport.  Use fixed viewport
+     * whenever wide viewport is on.
+     */
+    /* package */ boolean getUseFixedViewport() {
+        return getUseWideViewPort();
+    }
+
+    /**
+     * Returns whether private browsing is enabled.
+     */
+    /* package */ boolean isPrivateBrowsingEnabled() {
+        return mPrivateBrowsingEnabled;
+    }
+
+    /**
+     * Sets whether private browsing is enabled.
+     * @param flag Whether private browsing should be enabled.
+     */
+    /* package */ synchronized void setPrivateBrowsingEnabled(boolean flag) {
+        if (mPrivateBrowsingEnabled != flag) {
+            mPrivateBrowsingEnabled = flag;
+
+            // AutoFill is dependant on private browsing being enabled so
+            // reset it to take account of the new value of mPrivateBrowsingEnabled.
+            setAutoFillEnabled(mAutoFillEnabled);
+
+            postSync();
+        }
+    }
+
+    /**
+     * Returns whether the viewport metatag can disable zooming
+     * @hide
+     */
+    public boolean forceUserScalable() {
+        return mForceUserScalable;
+    }
+
+    /**
+     * Sets whether viewport metatag can disable zooming.
+     * @param flag Whether or not to forceably enable user scalable.
+     * @hide
+     */
+    public synchronized void setForceUserScalable(boolean flag) {
+        mForceUserScalable = flag;
+    }
+
+    synchronized void setSyntheticLinksEnabled(boolean flag) {
+        if (mSyntheticLinksEnabled != flag) {
+            mSyntheticLinksEnabled = flag;
+            postSync();
+        }
+    }
+
+    /**
+     * @hide
+     */
+    public synchronized void setAutoFillEnabled(boolean enabled) {
+        // AutoFill is always disabled in private browsing mode.
+        boolean autoFillEnabled = enabled && !mPrivateBrowsingEnabled;
+        if (mAutoFillEnabled != autoFillEnabled) {
+            mAutoFillEnabled = autoFillEnabled;
+            postSync();
+        }
+    }
+
+    /**
+     * @hide
+     */
+    public synchronized boolean getAutoFillEnabled() {
+        return mAutoFillEnabled;
+    }
+
+    /**
+     * @hide
+     */
+    public synchronized void setAutoFillProfile(AutoFillProfile profile) {
+        if (mAutoFillProfile != profile) {
+            mAutoFillProfile = profile;
+            postSync();
+        }
+    }
+
+    /**
+     * @hide
+     */
+    public synchronized AutoFillProfile getAutoFillProfile() {
+        return mAutoFillProfile;
+    }
+
+    int getDoubleTapToastCount() {
+        return mDoubleTapToastCount;
+    }
+
+    void setDoubleTapToastCount(int count) {
+        if (mDoubleTapToastCount != count) {
+            mDoubleTapToastCount = count;
+            // write the settings in the non-UI thread
+            mEventHandler.sendMessage(Message.obtain(null,
+                    EventHandler.SET_DOUBLE_TAP_TOAST_COUNT));
+        }
+    }
+
+    /**
+     * @hide
+     */
+    public void setProperty(String key, String value) {
+        if (mWebView.nativeSetProperty(key, value)) {
+            mWebView.contentInvalidateAll();
+        }
+    }
+
+    /**
+     * @hide
+     */
+    public String getProperty(String key) {
+        return mWebView.nativeGetProperty(key);
+    }
+
+    /**
+     * Transfer messages from the queue to the new WebCoreThread. Called from
+     * WebCore thread.
+     */
+    /*package*/
+    synchronized void syncSettingsAndCreateHandler(BrowserFrame frame) {
+        mBrowserFrame = frame;
+        if (DebugFlags.WEB_SETTINGS) {
+            junit.framework.Assert.assertTrue(frame.mNativeFrame != 0);
+        }
+
+        SharedPreferences sp = mContext.getSharedPreferences(PREF_FILE,
+                Context.MODE_PRIVATE);
+        if (mDoubleTapToastCount > 0) {
+            mDoubleTapToastCount = sp.getInt(DOUBLE_TAP_TOAST_COUNT,
+                    mDoubleTapToastCount);
+        }
+        nativeSync(frame.mNativeFrame);
+        mSyncPending = false;
+        mEventHandler.createHandler();
+    }
+
+    /**
+     * Let the Settings object know that our owner is being destroyed.
+     */
+    /*package*/
+    synchronized void onDestroyed() {
+    }
+
+    private int pin(int size) {
+        // FIXME: 72 is just an arbitrary max text size value.
+        if (size < 1) {
+            return 1;
+        } else if (size > 72) {
+            return 72;
+        }
+        return size;
+    }
+
+    /* Post a SYNC message to handle syncing the native settings. */
+    private synchronized void postSync() {
+        // Only post if a sync is not pending
+        if (!mSyncPending) {
+            mSyncPending = mEventHandler.sendMessage(
+                    Message.obtain(null, EventHandler.SYNC));
+        }
+    }
+
+    // Synchronize the native and java settings.
+    private native void nativeSync(int nativeFrame);
+}
diff --git a/core/java/android/webkit/WebViewClassic.java b/core/java/android/webkit/WebViewClassic.java
new file mode 100644
index 0000000..a850379
--- /dev/null
+++ b/core/java/android/webkit/WebViewClassic.java
@@ -0,0 +1,10550 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.webkit;
+
+import android.animation.ObjectAnimator;
+import android.annotation.Widget;
+import android.app.ActivityManager;
+import android.app.AlertDialog;
+import android.content.BroadcastReceiver;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.ComponentCallbacks2;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnCancelListener;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageManager;
+import android.content.res.Configuration;
+import android.database.DataSetObserver;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.BitmapShader;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorFilter;
+import android.graphics.DrawFilter;
+import android.graphics.Paint;
+import android.graphics.PaintFlagsDrawFilter;
+import android.graphics.Picture;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.graphics.Region;
+import android.graphics.RegionIterator;
+import android.graphics.Shader;
+import android.graphics.drawable.Drawable;
+import android.net.Proxy;
+import android.net.ProxyProperties;
+import android.net.Uri;
+import android.net.http.SslCertificate;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.os.StrictMode;
+import android.os.SystemClock;
+import android.provider.Settings;
+import android.security.KeyChain;
+import android.speech.tts.TextToSpeech;
+import android.text.Editable;
+import android.text.InputType;
+import android.text.Selection;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.util.DisplayMetrics;
+import android.util.EventLog;
+import android.util.Log;
+import android.view.Display;
+import android.view.Gravity;
+import android.view.HapticFeedbackConstants;
+import android.view.HardwareCanvas;
+import android.view.InputDevice;
+import android.view.KeyCharacterMap;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.ScaleGestureDetector;
+import android.view.SoundEffectConstants;
+import android.view.VelocityTracker;
+import android.view.View;
+import android.view.ViewConfiguration;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+import android.view.ViewTreeObserver;
+import android.view.WindowManager;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.accessibility.AccessibilityManager;
+import android.view.accessibility.AccessibilityNodeInfo;
+import android.view.inputmethod.BaseInputConnection;
+import android.view.inputmethod.EditorInfo;
+import android.view.inputmethod.InputConnection;
+import android.view.inputmethod.InputMethodManager;
+import android.webkit.HTML5VideoInline;
+import android.webkit.WebTextView.AutoCompleteAdapter;
+import android.webkit.WebViewCore.DrawData;
+import android.webkit.WebViewCore.EventHub;
+import android.webkit.WebViewCore.TextFieldInitData;
+import android.webkit.WebViewCore.TouchEventData;
+import android.webkit.WebViewCore.TouchHighlightData;
+import android.webkit.WebViewCore.WebKitHitTest;
+import android.widget.AbsoluteLayout;
+import android.widget.Adapter;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.CheckedTextView;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import android.widget.OverScroller;
+import android.widget.PopupWindow;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import junit.framework.Assert;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URLDecoder;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.Vector;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * <p>A View that displays web pages. This class is the basis upon which you
+ * can roll your own web browser or simply display some online content within your Activity.
+ * It uses the WebKit rendering engine to display
+ * web pages and includes methods to navigate forward and backward
+ * through a history, zoom in and out, perform text searches and more.</p>
+ * <p>To enable the built-in zoom, set
+ * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)}
+ * (introduced in API version 3).
+ * <p>Note that, in order for your Activity to access the Internet and load web pages
+ * in a WebView, you must add the {@code INTERNET} permissions to your
+ * Android Manifest file:</p>
+ * <pre>&lt;uses-permission android:name="android.permission.INTERNET" /></pre>
+ *
+ * <p>This must be a child of the <a
+ * href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a>
+ * element.</p>
+ *
+ * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-webview.html">Web View
+ * tutorial</a>.</p>
+ *
+ * <h3>Basic usage</h3>
+ *
+ * <p>By default, a WebView provides no browser-like widgets, does not
+ * enable JavaScript and web page errors are ignored. If your goal is only
+ * to display some HTML as a part of your UI, this is probably fine;
+ * the user won't need to interact with the web page beyond reading
+ * it, and the web page won't need to interact with the user. If you
+ * actually want a full-blown web browser, then you probably want to
+ * invoke the Browser application with a URL Intent rather than show it
+ * with a WebView. For example:
+ * <pre>
+ * Uri uri = Uri.parse("http://www.example.com");
+ * Intent intent = new Intent(Intent.ACTION_VIEW, uri);
+ * startActivity(intent);
+ * </pre>
+ * <p>See {@link android.content.Intent} for more information.</p>
+ *
+ * <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout,
+ * or set the entire Activity window as a WebView during {@link
+ * android.app.Activity#onCreate(Bundle) onCreate()}:</p>
+ * <pre class="prettyprint">
+ * WebView webview = new WebView(this);
+ * setContentView(webview);
+ * </pre>
+ *
+ * <p>Then load the desired web page:</p>
+ * <pre>
+ * // Simplest usage: note that an exception will NOT be thrown
+ * // if there is an error loading this page (see below).
+ * webview.loadUrl("http://slashdot.org/");
+ *
+ * // OR, you can also load from an HTML string:
+ * String summary = "&lt;html>&lt;body>You scored &lt;b>192&lt;/b> points.&lt;/body>&lt;/html>";
+ * webview.loadData(summary, "text/html", null);
+ * // ... although note that there are restrictions on what this HTML can do.
+ * // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link
+ * #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info.
+ * </pre>
+ *
+ * <p>A WebView has several customization points where you can add your
+ * own behavior. These are:</p>
+ *
+ * <ul>
+ *   <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass.
+ *       This class is called when something that might impact a
+ *       browser UI happens, for instance, progress updates and
+ *       JavaScript alerts are sent here (see <a
+ * href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>).
+ *   </li>
+ *   <li>Creating and setting a {@link android.webkit.WebViewClient} subclass.
+ *       It will be called when things happen that impact the
+ *       rendering of the content, eg, errors or form submissions. You
+ *       can also intercept URL loading here (via {@link
+ * android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String)
+ * shouldOverrideUrlLoading()}).</li>
+ *   <li>Modifying the {@link android.webkit.WebSettings}, such as
+ * enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean)
+ * setJavaScriptEnabled()}. </li>
+ *   <li>Injecting Java objects into the WebView using the
+ *       {@link android.webkit.WebView#addJavascriptInterface} method. This
+ *       method allows you to inject Java objects into a page's JavaScript
+ *       context, so that they can be accessed by JavaScript in the page.</li>
+ * </ul>
+ *
+ * <p>Here's a more complicated example, showing error handling,
+ *    settings, and progress notification:</p>
+ *
+ * <pre class="prettyprint">
+ * // Let's display the progress in the activity title bar, like the
+ * // browser app does.
+ * getWindow().requestFeature(Window.FEATURE_PROGRESS);
+ *
+ * webview.getSettings().setJavaScriptEnabled(true);
+ *
+ * final Activity activity = this;
+ * webview.setWebChromeClient(new WebChromeClient() {
+ *   public void onProgressChanged(WebView view, int progress) {
+ *     // Activities and WebViews measure progress with different scales.
+ *     // The progress meter will automatically disappear when we reach 100%
+ *     activity.setProgress(progress * 1000);
+ *   }
+ * });
+ * webview.setWebViewClient(new WebViewClient() {
+ *   public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
+ *     Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show();
+ *   }
+ * });
+ *
+ * webview.loadUrl("http://slashdot.org/");
+ * </pre>
+ *
+ * <h3>Cookie and window management</h3>
+ *
+ * <p>For obvious security reasons, your application has its own
+ * cache, cookie store etc.&mdash;it does not share the Browser
+ * application's data. Cookies are managed on a separate thread, so
+ * operations like index building don't block the UI
+ * thread. Follow the instructions in {@link android.webkit.CookieSyncManager}
+ * if you want to use cookies in your application.
+ * </p>
+ *
+ * <p>By default, requests by the HTML to open new windows are
+ * ignored. This is true whether they be opened by JavaScript or by
+ * the target attribute on a link. You can customize your
+ * {@link WebChromeClient} to provide your own behaviour for opening multiple windows,
+ * and render them in whatever manner you want.</p>
+ *
+ * <p>The standard behavior for an Activity is to be destroyed and
+ * recreated when the device orientation or any other configuration changes. This will cause
+ * the WebView to reload the current page. If you don't want that, you
+ * can set your Activity to handle the {@code orientation} and {@code keyboardHidden}
+ * changes, and then just leave the WebView alone. It'll automatically
+ * re-orient itself as appropriate. Read <a
+ * href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for
+ * more information about how to handle configuration changes during runtime.</p>
+ *
+ *
+ * <h3>Building web pages to support different screen densities</h3>
+ *
+ * <p>The screen density of a device is based on the screen resolution. A screen with low density
+ * has fewer available pixels per inch, where a screen with high density
+ * has more &mdash; sometimes significantly more &mdash; pixels per inch. The density of a
+ * screen is important because, other things being equal, a UI element (such as a button) whose
+ * height and width are defined in terms of screen pixels will appear larger on the lower density
+ * screen and smaller on the higher density screen.
+ * For simplicity, Android collapses all actual screen densities into three generalized densities:
+ * high, medium, and low.</p>
+ * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default
+ * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen
+ * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels
+ * are bigger).
+ * Starting with API Level 5 (Android 2.0), WebView supports DOM, CSS, and meta tag features to help
+ * you (as a web developer) target screens with different screen densities.</p>
+ * <p>Here's a summary of the features you can use to handle different screen densities:</p>
+ * <ul>
+ * <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the
+ * default scaling factor used for the current device. For example, if the value of {@code
+ * window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device
+ * and default scaling is not applied to the web page; if the value is "1.5", then the device is
+ * considered a high density device (hdpi) and the page content is scaled 1.5x; if the
+ * value is "0.75", then the device is considered a low density device (ldpi) and the content is
+ * scaled 0.75x. However, if you specify the {@code "target-densitydpi"} meta property
+ * (discussed below), then you can stop this default scaling behavior.</li>
+ * <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen
+ * densities for which this style sheet is to be used. The corresponding value should be either
+ * "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium
+ * density, or high density screens, respectively. For example:
+ * <pre>
+ * &lt;link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /&gt;</pre>
+ * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5,
+ * which is the high density pixel ratio.</p>
+ * </li>
+ * <li>The {@code target-densitydpi} property for the {@code viewport} meta tag. You can use
+ * this to specify the target density for which the web page is designed, using the following
+ * values:
+ * <ul>
+ * <li>{@code device-dpi} - Use the device's native dpi as the target dpi. Default scaling never
+ * occurs.</li>
+ * <li>{@code high-dpi} - Use hdpi as the target dpi. Medium and low density screens scale down
+ * as appropriate.</li>
+ * <li>{@code medium-dpi} - Use mdpi as the target dpi. High density screens scale up and
+ * low density screens scale down. This is also the default behavior.</li>
+ * <li>{@code low-dpi} - Use ldpi as the target dpi. Medium and high density screens scale up
+ * as appropriate.</li>
+ * <li><em>{@code <value>}</em> - Specify a dpi value to use as the target dpi (accepted
+ * values are 70-400).</li>
+ * </ul>
+ * <p>Here's an example meta tag to specify the target density:</p>
+ * <pre>&lt;meta name="viewport" content="target-densitydpi=device-dpi" /&gt;</pre></li>
+ * </ul>
+ * <p>If you want to modify your web page for different densities, by using the {@code
+ * -webkit-device-pixel-ratio} CSS media query and/or the {@code
+ * window.devicePixelRatio} DOM property, then you should set the {@code target-densitydpi} meta
+ * property to {@code device-dpi}. This stops Android from performing scaling in your web page and
+ * allows you to make the necessary adjustments for each density via CSS and JavaScript.</p>
+ *
+ * <h3>HTML5 Video support</h3>
+ *
+ * <p>In order to support inline HTML5 video in your application, you need to have hardware
+ * acceleration turned on, and set a {@link android.webkit.WebChromeClient}. For full screen support,
+ * implementations of {@link WebChromeClient#onShowCustomView(View, WebChromeClient.CustomViewCallback)}
+ * and {@link WebChromeClient#onHideCustomView()} are required,
+ * {@link WebChromeClient#getVideoLoadingProgressView()} is optional.
+ * </p>
+ *
+ *
+ */
+@Widget
+public class WebView extends AbsoluteLayout
+        implements ViewTreeObserver.OnGlobalFocusChangeListener,
+        ViewGroup.OnHierarchyChangeListener {
+
+    private class InnerGlobalLayoutListener implements ViewTreeObserver.OnGlobalLayoutListener {
+        @Override
+        public void onGlobalLayout() {
+            if (isShown()) {
+                setGLRectViewport();
+            }
+        }
+    }
+
+    private class InnerScrollChangedListener implements ViewTreeObserver.OnScrollChangedListener {
+        @Override
+        public void onScrollChanged() {
+            if (isShown()) {
+                setGLRectViewport();
+            }
+        }
+    }
+
+    /**
+     * InputConnection used for ContentEditable. This captures changes
+     * to the text and sends them either as key strokes or text changes.
+     */
+    private class WebViewInputConnection extends BaseInputConnection {
+        // Used for mapping characters to keys typed.
+        private KeyCharacterMap mKeyCharacterMap;
+        private boolean mIsKeySentByMe;
+        private int mInputType;
+        private int mImeOptions;
+        private String mHint;
+        private int mMaxLength;
+
+        public WebViewInputConnection() {
+            super(WebView.this, true);
+        }
+
+        @Override
+        public boolean sendKeyEvent(KeyEvent event) {
+            // Some IMEs send key events directly using sendKeyEvents.
+            // WebViewInputConnection should treat these as text changes.
+            if (!mIsKeySentByMe) {
+                if (event.getAction() == KeyEvent.ACTION_UP) {
+                    if (event.getKeyCode() == KeyEvent.KEYCODE_DEL) {
+                        return deleteSurroundingText(1, 0);
+                    } else if (event.getKeyCode() == KeyEvent.KEYCODE_FORWARD_DEL) {
+                        return deleteSurroundingText(0, 1);
+                    } else if (event.getUnicodeChar() != 0){
+                        String newComposingText =
+                                Character.toString((char)event.getUnicodeChar());
+                        return commitText(newComposingText, 1);
+                    }
+                } else if (event.getAction() == KeyEvent.ACTION_DOWN &&
+                        (event.getKeyCode() == KeyEvent.KEYCODE_DEL
+                        || event.getKeyCode() == KeyEvent.KEYCODE_FORWARD_DEL
+                        || event.getUnicodeChar() != 0)) {
+                    return true; // only act on action_down
+                }
+            }
+            return super.sendKeyEvent(event);
+        }
+
+        public void setTextAndKeepSelection(CharSequence text) {
+            Editable editable = getEditable();
+            int selectionStart = Selection.getSelectionStart(editable);
+            int selectionEnd = Selection.getSelectionEnd(editable);
+            text = limitReplaceTextByMaxLength(text, editable.length());
+            editable.replace(0, editable.length(), text);
+            restartInput();
+            // Keep the previous selection.
+            selectionStart = Math.min(selectionStart, editable.length());
+            selectionEnd = Math.min(selectionEnd, editable.length());
+            setSelection(selectionStart, selectionEnd);
+        }
+
+        public void replaceSelection(CharSequence text) {
+            Editable editable = getEditable();
+            int selectionStart = Selection.getSelectionStart(editable);
+            int selectionEnd = Selection.getSelectionEnd(editable);
+            text = limitReplaceTextByMaxLength(text, selectionEnd - selectionStart);
+            setNewText(selectionStart, selectionEnd, text);
+            editable.replace(selectionStart, selectionEnd, text);
+            restartInput();
+            // Move caret to the end of the new text
+            int newCaret = selectionStart + text.length();
+            setSelection(newCaret, newCaret);
+        }
+
+        @Override
+        public boolean setComposingText(CharSequence text, int newCursorPosition) {
+            Editable editable = getEditable();
+            int start = getComposingSpanStart(editable);
+            int end = getComposingSpanEnd(editable);
+            if (start < 0 || end < 0) {
+                start = Selection.getSelectionStart(editable);
+                end = Selection.getSelectionEnd(editable);
+            }
+            if (end < start) {
+                int temp = end;
+                end = start;
+                start = temp;
+            }
+            CharSequence limitedText = limitReplaceTextByMaxLength(text, end - start);
+            setNewText(start, end, limitedText);
+            if (limitedText != text) {
+                newCursorPosition -= text.length() - limitedText.length();
+            }
+            super.setComposingText(limitedText, newCursorPosition);
+            if (limitedText != text) {
+                restartInput();
+                int lastCaret = start + limitedText.length();
+                finishComposingText();
+                setSelection(lastCaret, lastCaret);
+            }
+            return true;
+        }
+
+        @Override
+        public boolean commitText(CharSequence text, int newCursorPosition) {
+            setComposingText(text, newCursorPosition);
+            int cursorPosition = Selection.getSelectionEnd(getEditable());
+            setComposingRegion(cursorPosition, cursorPosition);
+            return true;
+        }
+
+        @Override
+        public boolean deleteSurroundingText(int leftLength, int rightLength) {
+            Editable editable = getEditable();
+            int cursorPosition = Selection.getSelectionEnd(editable);
+            int startDelete = Math.max(0, cursorPosition - leftLength);
+            int endDelete = Math.min(editable.length(),
+                    cursorPosition + rightLength);
+            setNewText(startDelete, endDelete, "");
+            return super.deleteSurroundingText(leftLength, rightLength);
+        }
+
+        @Override
+        public boolean performEditorAction(int editorAction) {
+
+            boolean handled = true;
+            switch (editorAction) {
+            case EditorInfo.IME_ACTION_NEXT:
+                WebView.this.requestFocus(FOCUS_FORWARD);
+                break;
+            case EditorInfo.IME_ACTION_PREVIOUS:
+                WebView.this.requestFocus(FOCUS_BACKWARD);
+                break;
+            case EditorInfo.IME_ACTION_DONE:
+                WebView.this.hideSoftKeyboard();
+                break;
+            case EditorInfo.IME_ACTION_GO:
+            case EditorInfo.IME_ACTION_SEARCH:
+                WebView.this.hideSoftKeyboard();
+                String text = getEditable().toString();
+                passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_DOWN,
+                        KeyEvent.KEYCODE_ENTER));
+                passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_UP,
+                        KeyEvent.KEYCODE_ENTER));
+                break;
+
+            default:
+                handled = super.performEditorAction(editorAction);
+                break;
+            }
+
+            return handled;
+        }
+
+        public void initEditorInfo(WebViewCore.TextFieldInitData initData) {
+            int type = initData.mType;
+            int inputType = InputType.TYPE_CLASS_TEXT
+                    | InputType.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT;
+            int imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
+                    | EditorInfo.IME_FLAG_NO_FULLSCREEN;
+            if (!initData.mIsSpellCheckEnabled) {
+                inputType |= InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS;
+            }
+            if (WebTextView.TEXT_AREA != type
+                    && initData.mIsTextFieldNext) {
+                imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT;
+            }
+            switch (type) {
+                case WebTextView.NORMAL_TEXT_FIELD:
+                    imeOptions |= EditorInfo.IME_ACTION_GO;
+                    break;
+                case WebTextView.TEXT_AREA:
+                    inputType |= InputType.TYPE_TEXT_FLAG_MULTI_LINE
+                            | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES
+                            | InputType.TYPE_TEXT_FLAG_AUTO_CORRECT;
+                    imeOptions |= EditorInfo.IME_ACTION_NONE;
+                    break;
+                case WebTextView.PASSWORD:
+                    inputType |= EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD;
+                    imeOptions |= EditorInfo.IME_ACTION_GO;
+                    break;
+                case WebTextView.SEARCH:
+                    imeOptions |= EditorInfo.IME_ACTION_SEARCH;
+                    break;
+                case WebTextView.EMAIL:
+                    // inputType needs to be overwritten because of the different text variation.
+                    inputType = InputType.TYPE_CLASS_TEXT
+                            | InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS;
+                    imeOptions |= EditorInfo.IME_ACTION_GO;
+                    break;
+                case WebTextView.NUMBER:
+                    // inputType needs to be overwritten because of the different class.
+                    inputType = InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_NORMAL
+                            | InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_NUMBER_FLAG_DECIMAL;
+                    // Number and telephone do not have both a Tab key and an
+                    // action, so set the action to NEXT
+                    imeOptions |= EditorInfo.IME_ACTION_NEXT;
+                    break;
+                case WebTextView.TELEPHONE:
+                    // inputType needs to be overwritten because of the different class.
+                    inputType = InputType.TYPE_CLASS_PHONE;
+                    imeOptions |= EditorInfo.IME_ACTION_NEXT;
+                    break;
+                case WebTextView.URL:
+                    // TYPE_TEXT_VARIATION_URI prevents Tab key from showing, so
+                    // exclude it for now.
+                    imeOptions |= EditorInfo.IME_ACTION_GO;
+                    inputType |= InputType.TYPE_TEXT_VARIATION_URI;
+                    break;
+                default:
+                    imeOptions |= EditorInfo.IME_ACTION_GO;
+                    break;
+            }
+            mHint = initData.mLabel;
+            mInputType = inputType;
+            mImeOptions = imeOptions;
+            mMaxLength = initData.mMaxLength;
+        }
+
+        public void setupEditorInfo(EditorInfo outAttrs) {
+            outAttrs.inputType = mInputType;
+            outAttrs.imeOptions = mImeOptions;
+            outAttrs.hintText = mHint;
+            outAttrs.initialCapsMode = getCursorCapsMode(InputType.TYPE_CLASS_TEXT);
+        }
+
+        /**
+         * Sends a text change to webkit indirectly. If it is a single-
+         * character add or delete, it sends it as a key stroke. If it cannot
+         * be represented as a key stroke, it sends it as a field change.
+         * @param start The start offset (inclusive) of the text being changed.
+         * @param end The end offset (exclusive) of the text being changed.
+         * @param text The new text to replace the changed text.
+         */
+        private void setNewText(int start, int end, CharSequence text) {
+            mIsKeySentByMe = true;
+            Editable editable = getEditable();
+            CharSequence original = editable.subSequence(start, end);
+            boolean isCharacterAdd = false;
+            boolean isCharacterDelete = false;
+            int textLength = text.length();
+            int originalLength = original.length();
+            if (textLength > originalLength) {
+                isCharacterAdd = (textLength == originalLength + 1)
+                        && TextUtils.regionMatches(text, 0, original, 0,
+                                originalLength);
+            } else if (originalLength > textLength) {
+                isCharacterDelete = (textLength == originalLength - 1)
+                        && TextUtils.regionMatches(text, 0, original, 0,
+                                textLength);
+            }
+            if (isCharacterAdd) {
+                sendCharacter(text.charAt(textLength - 1));
+            } else if (isCharacterDelete) {
+                sendKey(KeyEvent.KEYCODE_DEL);
+            } else if ((textLength != originalLength) ||
+                    !TextUtils.regionMatches(text, 0, original, 0,
+                            textLength)) {
+                // Send a message so that key strokes and text replacement
+                // do not come out of order.
+                Message replaceMessage = mPrivateHandler.obtainMessage(
+                        REPLACE_TEXT, start,  end, text.toString());
+                mPrivateHandler.sendMessage(replaceMessage);
+            }
+            mIsKeySentByMe = false;
+        }
+
+        /**
+         * Send a single character to the WebView as a key down and up event.
+         * @param c The character to be sent.
+         */
+        private void sendCharacter(char c) {
+            if (mKeyCharacterMap == null) {
+                mKeyCharacterMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
+            }
+            char[] chars = new char[1];
+            chars[0] = c;
+            KeyEvent[] events = mKeyCharacterMap.getEvents(chars);
+            if (events != null) {
+                for (KeyEvent event : events) {
+                    sendKeyEvent(event);
+                }
+            } else {
+                Message msg = mPrivateHandler.obtainMessage(KEY_PRESS, (int) c, 0);
+                mPrivateHandler.sendMessage(msg);
+            }
+        }
+
+        /**
+         * Send a key event for a specific key code, not a standard
+         * unicode character.
+         * @param keyCode The key code to send.
+         */
+        private void sendKey(int keyCode) {
+            long eventTime = SystemClock.uptimeMillis();
+            sendKeyEvent(new KeyEvent(eventTime, eventTime,
+                    KeyEvent.ACTION_DOWN, keyCode, 0, 0,
+                    KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
+                    KeyEvent.FLAG_SOFT_KEYBOARD));
+            sendKeyEvent(new KeyEvent(SystemClock.uptimeMillis(), eventTime,
+                    KeyEvent.ACTION_UP, keyCode, 0, 0,
+                    KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
+                    KeyEvent.FLAG_SOFT_KEYBOARD));
+        }
+
+        private CharSequence limitReplaceTextByMaxLength(CharSequence text,
+                int numReplaced) {
+            if (mMaxLength > 0) {
+                Editable editable = getEditable();
+                int maxReplace = mMaxLength - editable.length() + numReplaced;
+                if (maxReplace < text.length()) {
+                    maxReplace = Math.max(maxReplace, 0);
+                    // New length is greater than the maximum. trim it down.
+                    text = text.subSequence(0, maxReplace);
+                }
+            }
+            return text;
+        }
+
+        private void restartInput() {
+            InputMethodManager imm = InputMethodManager.peekInstance();
+            if (imm != null) {
+                // Since the text has changed, do not allow the IME to replace the
+                // existing text as though it were a completion.
+                imm.restartInput(WebView.this);
+            }
+        }
+    }
+
+    private class PastePopupWindow extends PopupWindow implements OnClickListener {
+        private ViewGroup mContentView;
+        private TextView mPasteTextView;
+
+        public PastePopupWindow() {
+            super(WebView.this.mContext, null,
+                    com.android.internal.R.attr.textSelectHandleWindowStyle);
+            setClippingEnabled(true);
+            LinearLayout linearLayout = new LinearLayout(WebView.this.getContext());
+            linearLayout.setOrientation(LinearLayout.HORIZONTAL);
+            mContentView = linearLayout;
+            mContentView.setBackgroundResource(
+                    com.android.internal.R.drawable.text_edit_paste_window);
+
+            LayoutInflater inflater = (LayoutInflater)WebView.this.mContext.
+                    getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+
+            ViewGroup.LayoutParams wrapContent = new ViewGroup.LayoutParams(
+                    ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+
+            mPasteTextView = (TextView) inflater.inflate(
+                    com.android.internal.R.layout.text_edit_action_popup_text, null);
+            mPasteTextView.setLayoutParams(wrapContent);
+            mContentView.addView(mPasteTextView);
+            mPasteTextView.setText(com.android.internal.R.string.paste);
+            mPasteTextView.setOnClickListener(this);
+            this.setContentView(mContentView);
+        }
+
+        public void show(Rect cursorRect, int windowLeft, int windowTop) {
+            measureContent();
+
+            int width = mContentView.getMeasuredWidth();
+            int height = mContentView.getMeasuredHeight();
+            int y = cursorRect.top - height;
+            if (y < windowTop) {
+                // There's not enough room vertically, move it below the
+                // handle.
+                // The selection handle is vertically offset by 1/4 of the
+                // line height.
+                y = cursorRect.bottom - (cursorRect.height() / 4) +
+                        mSelectHandleCenter.getIntrinsicHeight();
+            }
+            int x = cursorRect.centerX() - (width / 2);
+            if (x < windowLeft) {
+                x = windowLeft;
+            }
+            if (!isShowing()) {
+                showAtLocation(WebView.this, Gravity.NO_GRAVITY, x, y);
+            }
+            update(x, y, width, height);
+        }
+
+        public void hide() {
+            dismiss();
+        }
+
+        @Override
+        public void onClick(View view) {
+            pasteFromClipboard();
+            selectionDone();
+        }
+
+        protected void measureContent() {
+            final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
+            mContentView.measure(
+                    View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels,
+                            View.MeasureSpec.AT_MOST),
+                    View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels,
+                            View.MeasureSpec.AT_MOST));
+        }
+    }
+
+    // The listener to capture global layout change event.
+    private InnerGlobalLayoutListener mGlobalLayoutListener = null;
+
+    // The listener to capture scroll event.
+    private InnerScrollChangedListener mScrollChangedListener = null;
+
+    // if AUTO_REDRAW_HACK is true, then the CALL key will toggle redrawing
+    // the screen all-the-time. Good for profiling our drawing code
+    static private final boolean AUTO_REDRAW_HACK = false;
+    // true means redraw the screen all-the-time. Only with AUTO_REDRAW_HACK
+    private boolean mAutoRedraw;
+
+    // Reference to the AlertDialog displayed by InvokeListBox.
+    // It's used to dismiss the dialog in destroy if not done before.
+    private AlertDialog mListBoxDialog = null;
+
+    static final String LOGTAG = "webview";
+
+    private ZoomManager mZoomManager;
+
+    private final Rect mGLRectViewport = new Rect();
+    private final Rect mViewRectViewport = new Rect();
+    private final RectF mVisibleContentRect = new RectF();
+    private boolean mGLViewportEmpty = false;
+    WebViewInputConnection mInputConnection = null;
+    private int mFieldPointer;
+    private PastePopupWindow mPasteWindow;
+
+    /**
+     *  Transportation object for returning WebView across thread boundaries.
+     */
+    public class WebViewTransport {
+        private WebView mWebview;
+
+        /**
+         * Set the WebView to the transportation object.
+         * @param webview The WebView to transport.
+         */
+        public synchronized void setWebView(WebView webview) {
+            mWebview = webview;
+        }
+
+        /**
+         * Return the WebView object.
+         * @return WebView The transported WebView object.
+         */
+        public synchronized WebView getWebView() {
+            return mWebview;
+        }
+    }
+
+    private static class OnTrimMemoryListener implements ComponentCallbacks2 {
+        private static OnTrimMemoryListener sInstance = null;
+
+        static void init(Context c) {
+            if (sInstance == null) {
+                sInstance = new OnTrimMemoryListener(c.getApplicationContext());
+            }
+        }
+
+        private OnTrimMemoryListener(Context c) {
+            c.registerComponentCallbacks(this);
+        }
+
+        @Override
+        public void onConfigurationChanged(Configuration newConfig) {
+            // Ignore
+        }
+
+        @Override
+        public void onLowMemory() {
+            // Ignore
+        }
+
+        @Override
+        public void onTrimMemory(int level) {
+            if (DebugFlags.WEB_VIEW) {
+                Log.d("WebView", "onTrimMemory: " + level);
+            }
+            // When framework reset EGL context during high memory pressure, all
+            // the existing GL resources for the html5 video will be destroyed
+            // at native side.
+            // Here we just need to clean up the Surface Texture which is static.
+            HTML5VideoInline.cleanupSurfaceTexture();
+            WebView.nativeOnTrimMemory(level);
+        }
+
+    }
+
+    // A final CallbackProxy shared by WebViewCore and BrowserFrame.
+    private final CallbackProxy mCallbackProxy;
+
+    private final WebViewDatabase mDatabase;
+
+    // SSL certificate for the main top-level page (if secure)
+    private SslCertificate mCertificate;
+
+    // Native WebView pointer that is 0 until the native object has been
+    // created.
+    private int mNativeClass;
+    // This would be final but it needs to be set to null when the WebView is
+    // destroyed.
+    private WebViewCore mWebViewCore;
+    // Handler for dispatching UI messages.
+    /* package */ final Handler mPrivateHandler = new PrivateHandler();
+    private WebTextView mWebTextView;
+    // Used to ignore changes to webkit text that arrives to the UI side after
+    // more key events.
+    private int mTextGeneration;
+
+    /* package */ void incrementTextGeneration() { mTextGeneration++; }
+
+    // Used by WebViewCore to create child views.
+    /* package */ final ViewManager mViewManager;
+
+    // Used to display in full screen mode
+    PluginFullScreenHolder mFullScreenHolder;
+
+    /**
+     * Position of the last touch event in pixels.
+     * Use integer to prevent loss of dragging delta calculation accuracy;
+     * which was done in float and converted to integer, and resulted in gradual
+     * and compounding touch position and view dragging mismatch.
+     */
+    private int mLastTouchX;
+    private int mLastTouchY;
+    private int mStartTouchX;
+    private int mStartTouchY;
+    private float mAverageAngle;
+
+    /**
+     * Time of the last touch event.
+     */
+    private long mLastTouchTime;
+
+    /**
+     * Time of the last time sending touch event to WebViewCore
+     */
+    private long mLastSentTouchTime;
+
+    /**
+     * The minimum elapsed time before sending another ACTION_MOVE event to
+     * WebViewCore. This really should be tuned for each type of the devices.
+     * For example in Google Map api test case, it takes Dream device at least
+     * 150ms to do a full cycle in the WebViewCore by processing a touch event,
+     * triggering the layout and drawing the picture. While the same process
+     * takes 60+ms on the current high speed device. If we make
+     * TOUCH_SENT_INTERVAL too small, there will be multiple touch events sent
+     * to WebViewCore queue and the real layout and draw events will be pushed
+     * to further, which slows down the refresh rate. Choose 50 to favor the
+     * current high speed devices. For Dream like devices, 100 is a better
+     * choice. Maybe make this in the buildspec later.
+     * (Update 12/14/2010: changed to 0 since current device should be able to
+     * handle the raw events and Map team voted to have the raw events too.
+     */
+    private static final int TOUCH_SENT_INTERVAL = 0;
+    private int mCurrentTouchInterval = TOUCH_SENT_INTERVAL;
+
+    /**
+     * Helper class to get velocity for fling
+     */
+    VelocityTracker mVelocityTracker;
+    private int mMaximumFling;
+    private float mLastVelocity;
+    private float mLastVelX;
+    private float mLastVelY;
+
+    // The id of the native layer being scrolled.
+    private int mCurrentScrollingLayerId;
+    private Rect mScrollingLayerRect = new Rect();
+
+    // only trigger accelerated fling if the new velocity is at least
+    // MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION times of the previous velocity
+    private static final float MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION = 0.2f;
+
+    /**
+     * Touch mode
+     */
+    private int mTouchMode = TOUCH_DONE_MODE;
+    private static final int TOUCH_INIT_MODE = 1;
+    private static final int TOUCH_DRAG_START_MODE = 2;
+    private static final int TOUCH_DRAG_MODE = 3;
+    private static final int TOUCH_SHORTPRESS_START_MODE = 4;
+    private static final int TOUCH_SHORTPRESS_MODE = 5;
+    private static final int TOUCH_DOUBLE_TAP_MODE = 6;
+    private static final int TOUCH_DONE_MODE = 7;
+    private static final int TOUCH_PINCH_DRAG = 8;
+    private static final int TOUCH_DRAG_LAYER_MODE = 9;
+
+    // Whether to forward the touch events to WebCore
+    // Can only be set by WebKit via JNI.
+    private boolean mForwardTouchEvents = false;
+
+    // Whether to prevent default during touch. The initial value depends on
+    // mForwardTouchEvents. If WebCore wants all the touch events, it says yes
+    // for touch down. Otherwise UI will wait for the answer of the first
+    // confirmed move before taking over the control.
+    private static final int PREVENT_DEFAULT_NO = 0;
+    private static final int PREVENT_DEFAULT_MAYBE_YES = 1;
+    private static final int PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN = 2;
+    private static final int PREVENT_DEFAULT_YES = 3;
+    private static final int PREVENT_DEFAULT_IGNORE = 4;
+    private int mPreventDefault = PREVENT_DEFAULT_IGNORE;
+
+    // true when the touch movement exceeds the slop
+    private boolean mConfirmMove;
+
+    // if true, touch events will be first processed by WebCore, if prevent
+    // default is not set, the UI will continue handle them.
+    private boolean mDeferTouchProcess;
+
+    // to avoid interfering with the current touch events, track them
+    // separately. Currently no snapping or fling in the deferred process mode
+    private int mDeferTouchMode = TOUCH_DONE_MODE;
+    private float mLastDeferTouchX;
+    private float mLastDeferTouchY;
+
+    // To keep track of whether the current drag was initiated by a WebTextView,
+    // so that we know not to hide the cursor
+    boolean mDragFromTextInput;
+
+    // Whether or not to draw the cursor ring.
+    private boolean mDrawCursorRing = true;
+
+    // true if onPause has been called (and not onResume)
+    private boolean mIsPaused;
+
+    private HitTestResult mInitialHitTestResult;
+    private WebKitHitTest mFocusedNode;
+
+    /**
+     * Customizable constant
+     */
+    // pre-computed square of ViewConfiguration.getScaledTouchSlop()
+    private int mTouchSlopSquare;
+    // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop()
+    private int mDoubleTapSlopSquare;
+    // pre-computed density adjusted navigation slop
+    private int mNavSlop;
+    // This should be ViewConfiguration.getTapTimeout()
+    // But system time out is 100ms, which is too short for the browser.
+    // In the browser, if it switches out of tap too soon, jump tap won't work.
+    // In addition, a double tap on a trackpad will always have a duration of
+    // 300ms, so this value must be at least that (otherwise we will timeout the
+    // first tap and convert it to a long press).
+    private static final int TAP_TIMEOUT = 300;
+    // This should be ViewConfiguration.getLongPressTimeout()
+    // But system time out is 500ms, which is too short for the browser.
+    // With a short timeout, it's difficult to treat trigger a short press.
+    private static final int LONG_PRESS_TIMEOUT = 1000;
+    // needed to avoid flinging after a pause of no movement
+    private static final int MIN_FLING_TIME = 250;
+    // draw unfiltered after drag is held without movement
+    private static final int MOTIONLESS_TIME = 100;
+    // The amount of content to overlap between two screens when going through
+    // pages with the space bar, in pixels.
+    private static final int PAGE_SCROLL_OVERLAP = 24;
+
+    /**
+     * These prevent calling requestLayout if either dimension is fixed. This
+     * depends on the layout parameters and the measure specs.
+     */
+    boolean mWidthCanMeasure;
+    boolean mHeightCanMeasure;
+
+    // Remember the last dimensions we sent to the native side so we can avoid
+    // sending the same dimensions more than once.
+    int mLastWidthSent;
+    int mLastHeightSent;
+    // Since view height sent to webkit could be fixed to avoid relayout, this
+    // value records the last sent actual view height.
+    int mLastActualHeightSent;
+
+    private int mContentWidth;   // cache of value from WebViewCore
+    private int mContentHeight;  // cache of value from WebViewCore
+
+    // Need to have the separate control for horizontal and vertical scrollbar
+    // style than the View's single scrollbar style
+    private boolean mOverlayHorizontalScrollbar = true;
+    private boolean mOverlayVerticalScrollbar = false;
+
+    // our standard speed. this way small distances will be traversed in less
+    // time than large distances, but we cap the duration, so that very large
+    // distances won't take too long to get there.
+    private static final int STD_SPEED = 480;  // pixels per second
+    // time for the longest scroll animation
+    private static final int MAX_DURATION = 750;   // milliseconds
+    private static final int SLIDE_TITLE_DURATION = 500;   // milliseconds
+
+    // Used by OverScrollGlow
+    OverScroller mScroller;
+
+    private boolean mInOverScrollMode = false;
+    private static Paint mOverScrollBackground;
+    private static Paint mOverScrollBorder;
+
+    private boolean mWrapContent;
+    private static final int MOTIONLESS_FALSE           = 0;
+    private static final int MOTIONLESS_PENDING         = 1;
+    private static final int MOTIONLESS_TRUE            = 2;
+    private static final int MOTIONLESS_IGNORE          = 3;
+    private int mHeldMotionless;
+
+    // An instance for injecting accessibility in WebViews with disabled
+    // JavaScript or ones for which no accessibility script exists
+    private AccessibilityInjector mAccessibilityInjector;
+
+    // flag indicating if accessibility script is injected so we
+    // know to handle Shift and arrows natively first
+    private boolean mAccessibilityScriptInjected;
+
+
+    /**
+     * How long the caret handle will last without being touched.
+     */
+    private static final long CARET_HANDLE_STAMINA_MS = 3000;
+
+    private Drawable mSelectHandleLeft;
+    private Drawable mSelectHandleRight;
+    private Drawable mSelectHandleCenter;
+    private Rect mSelectCursorBase = new Rect();
+    private int mSelectCursorBaseLayerId;
+    private Rect mSelectCursorExtent = new Rect();
+    private int mSelectCursorExtentLayerId;
+    private Rect mSelectDraggingCursor;
+    private Point mSelectDraggingOffset = new Point();
+    private boolean mIsCaretSelection;
+    static final int HANDLE_ID_START = 0;
+    static final int HANDLE_ID_END = 1;
+    static final int HANDLE_ID_BASE = 2;
+    static final int HANDLE_ID_EXTENT = 3;
+
+    static boolean sDisableNavcache = false;
+    static boolean sEnableWebTextView = false;
+    // the color used to highlight the touch rectangles
+    static final int HIGHLIGHT_COLOR = 0x6633b5e5;
+    // the region indicating where the user touched on the screen
+    private Region mTouchHighlightRegion = new Region();
+    // the paint for the touch highlight
+    private Paint mTouchHightlightPaint = new Paint();
+    // debug only
+    private static final boolean DEBUG_TOUCH_HIGHLIGHT = true;
+    private static final int TOUCH_HIGHLIGHT_ELAPSE_TIME = 2000;
+    private Paint mTouchCrossHairColor;
+    private int mTouchHighlightX;
+    private int mTouchHighlightY;
+    private long mTouchHighlightRequested;
+
+    // Basically this proxy is used to tell the Video to update layer tree at
+    // SetBaseLayer time and to pause when WebView paused.
+    private HTML5VideoViewProxy mHTML5VideoViewProxy;
+
+    // If we are using a set picture, don't send view updates to webkit
+    private boolean mBlockWebkitViewMessages = false;
+
+    // cached value used to determine if we need to switch drawing models
+    private boolean mHardwareAccelSkia = false;
+
+    /*
+     * Private message ids
+     */
+    private static final int REMEMBER_PASSWORD          = 1;
+    private static final int NEVER_REMEMBER_PASSWORD    = 2;
+    private static final int SWITCH_TO_SHORTPRESS       = 3;
+    private static final int SWITCH_TO_LONGPRESS        = 4;
+    private static final int RELEASE_SINGLE_TAP         = 5;
+    private static final int REQUEST_FORM_DATA          = 6;
+    private static final int DRAG_HELD_MOTIONLESS       = 8;
+    private static final int AWAKEN_SCROLL_BARS         = 9;
+    private static final int PREVENT_DEFAULT_TIMEOUT    = 10;
+    private static final int SCROLL_SELECT_TEXT         = 11;
+
+
+    private static final int FIRST_PRIVATE_MSG_ID = REMEMBER_PASSWORD;
+    private static final int LAST_PRIVATE_MSG_ID = SCROLL_SELECT_TEXT;
+
+    /*
+     * Package message ids
+     */
+    static final int SCROLL_TO_MSG_ID                   = 101;
+    static final int NEW_PICTURE_MSG_ID                 = 105;
+    static final int UPDATE_TEXT_ENTRY_MSG_ID           = 106;
+    static final int WEBCORE_INITIALIZED_MSG_ID         = 107;
+    static final int UPDATE_TEXTFIELD_TEXT_MSG_ID       = 108;
+    static final int UPDATE_ZOOM_RANGE                  = 109;
+    static final int UNHANDLED_NAV_KEY                  = 110;
+    static final int CLEAR_TEXT_ENTRY                   = 111;
+    static final int UPDATE_TEXT_SELECTION_MSG_ID       = 112;
+    static final int SHOW_RECT_MSG_ID                   = 113;
+    static final int LONG_PRESS_CENTER                  = 114;
+    static final int PREVENT_TOUCH_ID                   = 115;
+    static final int WEBCORE_NEED_TOUCH_EVENTS          = 116;
+    // obj=Rect in doc coordinates
+    static final int INVAL_RECT_MSG_ID                  = 117;
+    static final int REQUEST_KEYBOARD                   = 118;
+    static final int DO_MOTION_UP                       = 119;
+    static final int SHOW_FULLSCREEN                    = 120;
+    static final int HIDE_FULLSCREEN                    = 121;
+    static final int DOM_FOCUS_CHANGED                  = 122;
+    static final int REPLACE_BASE_CONTENT               = 123;
+    static final int FORM_DID_BLUR                      = 124;
+    static final int RETURN_LABEL                       = 125;
+    static final int UPDATE_MATCH_COUNT                 = 126;
+    static final int CENTER_FIT_RECT                    = 127;
+    static final int REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID = 128;
+    static final int SET_SCROLLBAR_MODES                = 129;
+    static final int SELECTION_STRING_CHANGED           = 130;
+    static final int HIT_TEST_RESULT                    = 131;
+    static final int SAVE_WEBARCHIVE_FINISHED           = 132;
+
+    static final int SET_AUTOFILLABLE                   = 133;
+    static final int AUTOFILL_COMPLETE                  = 134;
+
+    static final int SELECT_AT                          = 135;
+    static final int SCREEN_ON                          = 136;
+    static final int ENTER_FULLSCREEN_VIDEO             = 137;
+    static final int UPDATE_SELECTION                   = 138;
+    static final int UPDATE_ZOOM_DENSITY                = 139;
+    static final int EXIT_FULLSCREEN_VIDEO              = 140;
+
+    static final int COPY_TO_CLIPBOARD                  = 141;
+    static final int INIT_EDIT_FIELD                    = 142;
+    static final int REPLACE_TEXT                       = 143;
+    static final int CLEAR_CARET_HANDLE                 = 144;
+    static final int KEY_PRESS                          = 145;
+
+    private static final int FIRST_PACKAGE_MSG_ID = SCROLL_TO_MSG_ID;
+    private static final int LAST_PACKAGE_MSG_ID = HIT_TEST_RESULT;
+
+    static final String[] HandlerPrivateDebugString = {
+        "REMEMBER_PASSWORD", //              = 1;
+        "NEVER_REMEMBER_PASSWORD", //        = 2;
+        "SWITCH_TO_SHORTPRESS", //           = 3;
+        "SWITCH_TO_LONGPRESS", //            = 4;
+        "RELEASE_SINGLE_TAP", //             = 5;
+        "REQUEST_FORM_DATA", //              = 6;
+        "RESUME_WEBCORE_PRIORITY", //        = 7;
+        "DRAG_HELD_MOTIONLESS", //           = 8;
+        "AWAKEN_SCROLL_BARS", //             = 9;
+        "PREVENT_DEFAULT_TIMEOUT", //        = 10;
+        "SCROLL_SELECT_TEXT" //              = 11;
+    };
+
+    static final String[] HandlerPackageDebugString = {
+        "SCROLL_TO_MSG_ID", //               = 101;
+        "102", //                            = 102;
+        "103", //                            = 103;
+        "104", //                            = 104;
+        "NEW_PICTURE_MSG_ID", //             = 105;
+        "UPDATE_TEXT_ENTRY_MSG_ID", //       = 106;
+        "WEBCORE_INITIALIZED_MSG_ID", //     = 107;
+        "UPDATE_TEXTFIELD_TEXT_MSG_ID", //   = 108;
+        "UPDATE_ZOOM_RANGE", //              = 109;
+        "UNHANDLED_NAV_KEY", //              = 110;
+        "CLEAR_TEXT_ENTRY", //               = 111;
+        "UPDATE_TEXT_SELECTION_MSG_ID", //   = 112;
+        "SHOW_RECT_MSG_ID", //               = 113;
+        "LONG_PRESS_CENTER", //              = 114;
+        "PREVENT_TOUCH_ID", //               = 115;
+        "WEBCORE_NEED_TOUCH_EVENTS", //      = 116;
+        "INVAL_RECT_MSG_ID", //              = 117;
+        "REQUEST_KEYBOARD", //               = 118;
+        "DO_MOTION_UP", //                   = 119;
+        "SHOW_FULLSCREEN", //                = 120;
+        "HIDE_FULLSCREEN", //                = 121;
+        "DOM_FOCUS_CHANGED", //              = 122;
+        "REPLACE_BASE_CONTENT", //           = 123;
+        "FORM_DID_BLUR", //                  = 124;
+        "RETURN_LABEL", //                   = 125;
+        "UPDATE_MATCH_COUNT", //             = 126;
+        "CENTER_FIT_RECT", //                = 127;
+        "REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID", // = 128;
+        "SET_SCROLLBAR_MODES", //            = 129;
+        "SELECTION_STRING_CHANGED", //       = 130;
+        "SET_TOUCH_HIGHLIGHT_RECTS", //      = 131;
+        "SAVE_WEBARCHIVE_FINISHED", //       = 132;
+        "SET_AUTOFILLABLE", //               = 133;
+        "AUTOFILL_COMPLETE", //              = 134;
+        "SELECT_AT", //                      = 135;
+        "SCREEN_ON", //                      = 136;
+        "ENTER_FULLSCREEN_VIDEO", //         = 137;
+        "UPDATE_SELECTION", //               = 138;
+        "UPDATE_ZOOM_DENSITY" //             = 139;
+    };
+
+    // If the site doesn't use the viewport meta tag to specify the viewport,
+    // use DEFAULT_VIEWPORT_WIDTH as the default viewport width
+    static final int DEFAULT_VIEWPORT_WIDTH = 980;
+
+    // normally we try to fit the content to the minimum preferred width
+    // calculated by the Webkit. To avoid the bad behavior when some site's
+    // minimum preferred width keeps growing when changing the viewport width or
+    // the minimum preferred width is huge, an upper limit is needed.
+    static int sMaxViewportWidth = DEFAULT_VIEWPORT_WIDTH;
+
+    // initial scale in percent. 0 means using default.
+    private int mInitialScaleInPercent = 0;
+
+    // Whether or not a scroll event should be sent to webkit.  This is only set
+    // to false when restoring the scroll position.
+    private boolean mSendScrollEvent = true;
+
+    private int mSnapScrollMode = SNAP_NONE;
+    private static final int SNAP_NONE = 0;
+    private static final int SNAP_LOCK = 1; // not a separate state
+    private static final int SNAP_X = 2; // may be combined with SNAP_LOCK
+    private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK
+    private boolean mSnapPositive;
+
+    // keep these in sync with their counterparts in WebView.cpp
+    private static final int DRAW_EXTRAS_NONE = 0;
+    private static final int DRAW_EXTRAS_SELECTION = 1;
+    private static final int DRAW_EXTRAS_CURSOR_RING = 2;
+
+    // keep this in sync with WebCore:ScrollbarMode in WebKit
+    private static final int SCROLLBAR_AUTO = 0;
+    private static final int SCROLLBAR_ALWAYSOFF = 1;
+    // as we auto fade scrollbar, this is ignored.
+    private static final int SCROLLBAR_ALWAYSON = 2;
+    private int mHorizontalScrollBarMode = SCROLLBAR_AUTO;
+    private int mVerticalScrollBarMode = SCROLLBAR_AUTO;
+
+    // constants for determining script injection strategy
+    private static final int ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED = -1;
+    private static final int ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT = 0;
+    private static final int ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED = 1;
+
+    // the alias via which accessibility JavaScript interface is exposed
+    private static final String ALIAS_ACCESSIBILITY_JS_INTERFACE = "accessibility";
+
+    // Template for JavaScript that injects a screen-reader.
+    private static final String ACCESSIBILITY_SCREEN_READER_JAVASCRIPT_TEMPLATE =
+        "javascript:(function() {" +
+        "    var chooser = document.createElement('script');" +
+        "    chooser.type = 'text/javascript';" +
+        "    chooser.src = '%1s';" +
+        "    document.getElementsByTagName('head')[0].appendChild(chooser);" +
+        "  })();";
+
+    // Regular expression that matches the "axs" URL parameter.
+    // The value of 0 means the accessibility script is opted out
+    // The value of 1 means the accessibility script is already injected
+    private static final String PATTERN_MATCH_AXS_URL_PARAMETER = "(\\?axs=(0|1))|(&axs=(0|1))";
+
+    // TextToSpeech instance exposed to JavaScript to the injected screenreader.
+    private TextToSpeech mTextToSpeech;
+
+    // variable to cache the above pattern in case accessibility is enabled.
+    private Pattern mMatchAxsUrlParameterPattern;
+
+    /**
+     * Max distance to overscroll by in pixels.
+     * This how far content can be pulled beyond its normal bounds by the user.
+     */
+    private int mOverscrollDistance;
+
+    /**
+     * Max distance to overfling by in pixels.
+     * This is how far flinged content can move beyond the end of its normal bounds.
+     */
+    private int mOverflingDistance;
+
+    private OverScrollGlow mOverScrollGlow;
+
+    // Used to match key downs and key ups
+    private Vector<Integer> mKeysPressed;
+
+    /* package */ static boolean mLogEvent = true;
+
+    // for event log
+    private long mLastTouchUpTime = 0;
+
+    private WebViewCore.AutoFillData mAutoFillData;
+
+    private static boolean sNotificationsEnabled = true;
+
+    /**
+     * URI scheme for telephone number
+     */
+    public static final String SCHEME_TEL = "tel:";
+    /**
+     * URI scheme for email address
+     */
+    public static final String SCHEME_MAILTO = "mailto:";
+    /**
+     * URI scheme for map address
+     */
+    public static final String SCHEME_GEO = "geo:0,0?q=";
+
+    private int mBackgroundColor = Color.WHITE;
+
+    private static final long SELECT_SCROLL_INTERVAL = 1000 / 60; // 60 / second
+    private int mAutoScrollX = 0;
+    private int mAutoScrollY = 0;
+    private int mMinAutoScrollX = 0;
+    private int mMaxAutoScrollX = 0;
+    private int mMinAutoScrollY = 0;
+    private int mMaxAutoScrollY = 0;
+    private Rect mScrollingLayerBounds = new Rect();
+    private boolean mSentAutoScrollMessage = false;
+
+    // used for serializing asynchronously handled touch events.
+    private final TouchEventQueue mTouchEventQueue = new TouchEventQueue();
+
+    // Used to track whether picture updating was paused due to a window focus change.
+    private boolean mPictureUpdatePausedForFocusChange = false;
+
+    // Used to notify listeners of a new picture.
+    private PictureListener mPictureListener;
+    /**
+     * Interface to listen for new pictures as they change.
+     * @deprecated This interface is now obsolete.
+     */
+    @Deprecated
+    public interface PictureListener {
+        /**
+         * Notify the listener that the picture has changed.
+         * @param view The WebView that owns the picture.
+         * @param picture The new picture.
+         * @deprecated Due to internal changes, the picture does not include
+         * composited layers such as fixed position elements or scrollable divs.
+         * While the PictureListener API can still be used to detect changes in
+         * the WebView content, you are advised against its usage until a replacement
+         * is provided in a future Android release
+         */
+        @Deprecated
+        public void onNewPicture(WebView view, Picture picture);
+    }
+
+    public static class HitTestResult {
+        /**
+         * Default HitTestResult, where the target is unknown
+         */
+        public static final int UNKNOWN_TYPE = 0;
+        /**
+         * @deprecated This type is no longer used.
+         */
+        @Deprecated
+        public static final int ANCHOR_TYPE = 1;
+        /**
+         * HitTestResult for hitting a phone number
+         */
+        public static final int PHONE_TYPE = 2;
+        /**
+         * HitTestResult for hitting a map address
+         */
+        public static final int GEO_TYPE = 3;
+        /**
+         * HitTestResult for hitting an email address
+         */
+        public static final int EMAIL_TYPE = 4;
+        /**
+         * HitTestResult for hitting an HTML::img tag
+         */
+        public static final int IMAGE_TYPE = 5;
+        /**
+         * @deprecated This type is no longer used.
+         */
+        @Deprecated
+        public static final int IMAGE_ANCHOR_TYPE = 6;
+        /**
+         * HitTestResult for hitting a HTML::a tag with src=http
+         */
+        public static final int SRC_ANCHOR_TYPE = 7;
+        /**
+         * HitTestResult for hitting a HTML::a tag with src=http + HTML::img
+         */
+        public static final int SRC_IMAGE_ANCHOR_TYPE = 8;
+        /**
+         * HitTestResult for hitting an edit text area
+         */
+        public static final int EDIT_TEXT_TYPE = 9;
+
+        private int mType;
+        private String mExtra;
+
+        HitTestResult() {
+            mType = UNKNOWN_TYPE;
+        }
+
+        private void setType(int type) {
+            mType = type;
+        }
+
+        private void setExtra(String extra) {
+            mExtra = extra;
+        }
+
+        /**
+         * Gets the type of the hit test result.
+         * @return See the XXX_TYPE constants defined in this class.
+         */
+        public int getType() {
+            return mType;
+        }
+
+        /**
+         * Gets additional type-dependant information about the result, see
+         * {@link WebView#getHitTestResult()} for details.
+         * @return may either be null or contain extra information about this result.
+         */
+        public String getExtra() {
+            return mExtra;
+        }
+    }
+
+    /**
+     * Refer to {@link WebView#requestFocusNodeHref(Message)} for more information
+     */
+    static class FocusNodeHref {
+        static final String TITLE = "title";
+        static final String URL = "url";
+        static final String SRC = "src";
+    }
+
+    /**
+     * Construct a new WebView with a Context object.
+     * @param context A Context object used to access application assets.
+     */
+    public WebView(Context context) {
+        this(context, null);
+    }
+
+    /**
+     * Construct a new WebView with layout parameters.
+     * @param context A Context object used to access application assets.
+     * @param attrs An AttributeSet passed to our parent.
+     */
+    public WebView(Context context, AttributeSet attrs) {
+        this(context, attrs, com.android.internal.R.attr.webViewStyle);
+    }
+
+    /**
+     * Construct a new WebView with layout parameters and a default style.
+     * @param context A Context object used to access application assets.
+     * @param attrs An AttributeSet passed to our parent.
+     * @param defStyle The default style resource ID.
+     */
+    public WebView(Context context, AttributeSet attrs, int defStyle) {
+        this(context, attrs, defStyle, false);
+    }
+
+    /**
+     * Construct a new WebView with layout parameters and a default style.
+     * @param context A Context object used to access application assets.
+     * @param attrs An AttributeSet passed to our parent.
+     * @param defStyle The default style resource ID.
+     * @param privateBrowsing If true the web view will be initialized in private mode.
+     */
+    public WebView(Context context, AttributeSet attrs, int defStyle,
+            boolean privateBrowsing) {
+        this(context, attrs, defStyle, null, privateBrowsing);
+    }
+
+    /**
+     * Construct a new WebView with layout parameters, a default style and a set
+     * of custom Javscript interfaces to be added to the WebView at initialization
+     * time. This guarantees that these interfaces will be available when the JS
+     * context is initialized.
+     * @param context A Context object used to access application assets.
+     * @param attrs An AttributeSet passed to our parent.
+     * @param defStyle The default style resource ID.
+     * @param javaScriptInterfaces is a Map of interface names, as keys, and
+     * object implementing those interfaces, as values.
+     * @param privateBrowsing If true the web view will be initialized in private mode.
+     * @hide This is an implementation detail.
+     */
+    protected WebView(Context context, AttributeSet attrs, int defStyle,
+            Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) {
+        super(context, attrs, defStyle);
+        checkThread();
+
+        if (context == null) {
+            throw new IllegalArgumentException("Invalid context argument");
+        }
+
+        // Used by the chrome stack to find application paths
+        JniUtil.setContext(context);
+
+        mCallbackProxy = new CallbackProxy(context, this);
+        mViewManager = new ViewManager(this);
+        L10nUtils.setApplicationContext(context.getApplicationContext());
+        mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javaScriptInterfaces);
+        mDatabase = WebViewDatabase.getInstance(context);
+        mScroller = new OverScroller(context, null, 0, 0, false); //TODO Use OverScroller's flywheel
+        mZoomManager = new ZoomManager(this, mCallbackProxy);
+
+        /* The init method must follow the creation of certain member variables,
+         * such as the mZoomManager.
+         */
+        init();
+        setupPackageListener(context);
+        setupProxyListener(context);
+        setupTrustStorageListener(context);
+        updateMultiTouchSupport(context);
+
+        if (privateBrowsing) {
+            startPrivateBrowsing();
+        }
+
+        mAutoFillData = new WebViewCore.AutoFillData();
+    }
+
+    private static class TrustStorageListener extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) {
+                handleCertTrustChanged();
+            }
+        }
+    }
+    private static TrustStorageListener sTrustStorageListener;
+
+    /**
+     * Handles update to the trust storage.
+     */
+    private static void handleCertTrustChanged() {
+        // send a message for indicating trust storage change
+        WebViewCore.sendStaticMessage(EventHub.TRUST_STORAGE_UPDATED, null);
+    }
+
+    /*
+     * @param context This method expects this to be a valid context.
+     */
+    private static void setupTrustStorageListener(Context context) {
+        if (sTrustStorageListener != null ) {
+            return;
+        }
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(KeyChain.ACTION_STORAGE_CHANGED);
+        sTrustStorageListener = new TrustStorageListener();
+        Intent current =
+            context.getApplicationContext().registerReceiver(sTrustStorageListener, filter);
+        if (current != null) {
+            handleCertTrustChanged();
+        }
+    }
+
+    private static class ProxyReceiver extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (intent.getAction().equals(Proxy.PROXY_CHANGE_ACTION)) {
+                handleProxyBroadcast(intent);
+            }
+        }
+    }
+
+    /*
+     * Receiver for PROXY_CHANGE_ACTION, will be null when it is not added handling broadcasts.
+     */
+    private static ProxyReceiver sProxyReceiver;
+
+    /*
+     * @param context This method expects this to be a valid context
+     */
+    private static synchronized void setupProxyListener(Context context) {
+        if (sProxyReceiver != null || sNotificationsEnabled == false) {
+            return;
+        }
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(Proxy.PROXY_CHANGE_ACTION);
+        sProxyReceiver = new ProxyReceiver();
+        Intent currentProxy = context.getApplicationContext().registerReceiver(
+                sProxyReceiver, filter);
+        if (currentProxy != null) {
+            handleProxyBroadcast(currentProxy);
+        }
+    }
+
+    /*
+     * @param context This method expects this to be a valid context
+     */
+    private static synchronized void disableProxyListener(Context context) {
+        if (sProxyReceiver == null)
+            return;
+
+        context.getApplicationContext().unregisterReceiver(sProxyReceiver);
+        sProxyReceiver = null;
+    }
+
+    private static void handleProxyBroadcast(Intent intent) {
+        ProxyProperties proxyProperties = (ProxyProperties)intent.getExtra(Proxy.EXTRA_PROXY_INFO);
+        if (proxyProperties == null || proxyProperties.getHost() == null) {
+            WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, null);
+            return;
+        }
+        WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, proxyProperties);
+    }
+
+    /*
+     * A variable to track if there is a receiver added for ACTION_PACKAGE_ADDED
+     * or ACTION_PACKAGE_REMOVED.
+     */
+    private static boolean sPackageInstallationReceiverAdded = false;
+
+    /*
+     * A set of Google packages we monitor for the
+     * navigator.isApplicationInstalled() API. Add additional packages as
+     * needed.
+     */
+    private static Set<String> sGoogleApps;
+    static {
+        sGoogleApps = new HashSet<String>();
+        sGoogleApps.add("com.google.android.youtube");
+    }
+
+    private static class PackageListener extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            final String action = intent.getAction();
+            final String packageName = intent.getData().getSchemeSpecificPart();
+            final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
+            if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) {
+                // if it is replacing, refreshPlugins() when adding
+                return;
+            }
+
+            if (sGoogleApps.contains(packageName)) {
+                if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
+                    WebViewCore.sendStaticMessage(EventHub.ADD_PACKAGE_NAME, packageName);
+                } else {
+                    WebViewCore.sendStaticMessage(EventHub.REMOVE_PACKAGE_NAME, packageName);
+                }
+            }
+
+            PluginManager pm = PluginManager.getInstance(context);
+            if (pm.containsPluginPermissionAndSignatures(packageName)) {
+                pm.refreshPlugins(Intent.ACTION_PACKAGE_ADDED.equals(action));
+            }
+        }
+    }
+
+    private void setupPackageListener(Context context) {
+
+        /*
+         * we must synchronize the instance check and the creation of the
+         * receiver to ensure that only ONE receiver exists for all WebView
+         * instances.
+         */
+        synchronized (WebView.class) {
+
+            // if the receiver already exists then we do not need to register it
+            // again
+            if (sPackageInstallationReceiverAdded) {
+                return;
+            }
+
+            IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
+            filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
+            filter.addDataScheme("package");
+            BroadcastReceiver packageListener = new PackageListener();
+            context.getApplicationContext().registerReceiver(packageListener, filter);
+            sPackageInstallationReceiverAdded = true;
+        }
+
+        // check if any of the monitored apps are already installed
+        AsyncTask<Void, Void, Set<String>> task = new AsyncTask<Void, Void, Set<String>>() {
+
+            @Override
+            protected Set<String> doInBackground(Void... unused) {
+                Set<String> installedPackages = new HashSet<String>();
+                PackageManager pm = mContext.getPackageManager();
+                for (String name : sGoogleApps) {
+                    try {
+                        pm.getPackageInfo(name,
+                                PackageManager.GET_ACTIVITIES | PackageManager.GET_SERVICES);
+                        installedPackages.add(name);
+                    } catch (PackageManager.NameNotFoundException e) {
+                        // package not found
+                    }
+                }
+                return installedPackages;
+            }
+
+            // Executes on the UI thread
+            @Override
+            protected void onPostExecute(Set<String> installedPackages) {
+                if (mWebViewCore != null) {
+                    mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAMES, installedPackages);
+                }
+            }
+        };
+        task.execute();
+    }
+
+    void updateMultiTouchSupport(Context context) {
+        mZoomManager.updateMultiTouchSupport(context);
+    }
+
+    private void init() {
+        OnTrimMemoryListener.init(getContext());
+        sDisableNavcache = nativeDisableNavcache();
+        setWillNotDraw(false);
+        setFocusable(true);
+        setFocusableInTouchMode(true);
+        setClickable(true);
+        setLongClickable(true);
+
+        final ViewConfiguration configuration = ViewConfiguration.get(getContext());
+        int slop = configuration.getScaledTouchSlop();
+        mTouchSlopSquare = slop * slop;
+        slop = configuration.getScaledDoubleTapSlop();
+        mDoubleTapSlopSquare = slop * slop;
+        final float density = getContext().getResources().getDisplayMetrics().density;
+        // use one line height, 16 based on our current default font, for how
+        // far we allow a touch be away from the edge of a link
+        mNavSlop = (int) (16 * density);
+        mZoomManager.init(density);
+        mMaximumFling = configuration.getScaledMaximumFlingVelocity();
+
+        // Compute the inverse of the density squared.
+        DRAG_LAYER_INVERSE_DENSITY_SQUARED = 1 / (density * density);
+
+        mOverscrollDistance = configuration.getScaledOverscrollDistance();
+        mOverflingDistance = configuration.getScaledOverflingDistance();
+
+        setScrollBarStyle(super.getScrollBarStyle());
+        // Initially use a size of two, since the user is likely to only hold
+        // down two keys at a time (shift + another key)
+        mKeysPressed = new Vector<Integer>(2);
+        mHTML5VideoViewProxy = null ;
+    }
+
+    @Override
+    public boolean shouldDelayChildPressedState() {
+        return true;
+    }
+
+    /**
+     * Adds accessibility APIs to JavaScript.
+     *
+     * Note: This method is responsible to performing the necessary
+     *       check if the accessibility APIs should be exposed.
+     */
+    private void addAccessibilityApisToJavaScript() {
+        if (AccessibilityManager.getInstance(mContext).isEnabled()
+                && getSettings().getJavaScriptEnabled()) {
+            // exposing the TTS for now ...
+            final Context ctx = getContext();
+            if (ctx != null) {
+                final String packageName = ctx.getPackageName();
+                if (packageName != null) {
+                    mTextToSpeech = new TextToSpeech(getContext(), null, null,
+                            packageName + ".**webview**", true);
+                    addJavascriptInterface(mTextToSpeech, ALIAS_ACCESSIBILITY_JS_INTERFACE);
+                }
+            }
+        }
+    }
+
+    /**
+     * Removes accessibility APIs from JavaScript.
+     */
+    private void removeAccessibilityApisFromJavaScript() {
+        // exposing the TTS for now ...
+        if (mTextToSpeech != null) {
+            removeJavascriptInterface(ALIAS_ACCESSIBILITY_JS_INTERFACE);
+            mTextToSpeech.shutdown();
+            mTextToSpeech = null;
+        }
+    }
+
+    @Override
+    public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
+        super.onInitializeAccessibilityNodeInfo(info);
+        info.setScrollable(isScrollableForAccessibility());
+    }
+
+    @Override
+    public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
+        super.onInitializeAccessibilityEvent(event);
+        event.setScrollable(isScrollableForAccessibility());
+        event.setScrollX(mScrollX);
+        event.setScrollY(mScrollY);
+        final int convertedContentWidth = contentToViewX(getContentWidth());
+        final int adjustedViewWidth = getWidth() - mPaddingLeft - mPaddingRight;
+        event.setMaxScrollX(Math.max(convertedContentWidth - adjustedViewWidth, 0));
+        final int convertedContentHeight = contentToViewY(getContentHeight());
+        final int adjustedViewHeight = getHeight() - mPaddingTop - mPaddingBottom;
+        event.setMaxScrollY(Math.max(convertedContentHeight - adjustedViewHeight, 0));
+    }
+
+    private boolean isScrollableForAccessibility() {
+        return (contentToViewX(getContentWidth()) > getWidth() - mPaddingLeft - mPaddingRight
+                || contentToViewY(getContentHeight()) > getHeight() - mPaddingTop - mPaddingBottom);
+    }
+
+    @Override
+    public void setOverScrollMode(int mode) {
+        super.setOverScrollMode(mode);
+        if (mode != OVER_SCROLL_NEVER) {
+            if (mOverScrollGlow == null) {
+                mOverScrollGlow = new OverScrollGlow(this);
+            }
+        } else {
+            mOverScrollGlow = null;
+        }
+    }
+
+    /* package */ void adjustDefaultZoomDensity(int zoomDensity) {
+        final float density = mContext.getResources().getDisplayMetrics().density
+                * 100 / zoomDensity;
+        updateDefaultZoomDensity(density);
+    }
+
+    /* package */ void updateDefaultZoomDensity(float density) {
+        mNavSlop = (int) (16 * density);
+        mZoomManager.updateDefaultZoomDensity(density);
+    }
+
+    /* package */ boolean onSavePassword(String schemePlusHost, String username,
+            String password, final Message resumeMsg) {
+       boolean rVal = false;
+       if (resumeMsg == null) {
+           // null resumeMsg implies saving password silently
+           mDatabase.setUsernamePassword(schemePlusHost, username, password);
+       } else {
+            final Message remember = mPrivateHandler.obtainMessage(
+                    REMEMBER_PASSWORD);
+            remember.getData().putString("host", schemePlusHost);
+            remember.getData().putString("username", username);
+            remember.getData().putString("password", password);
+            remember.obj = resumeMsg;
+
+            final Message neverRemember = mPrivateHandler.obtainMessage(
+                    NEVER_REMEMBER_PASSWORD);
+            neverRemember.getData().putString("host", schemePlusHost);
+            neverRemember.getData().putString("username", username);
+            neverRemember.getData().putString("password", password);
+            neverRemember.obj = resumeMsg;
+
+            new AlertDialog.Builder(getContext())
+                    .setTitle(com.android.internal.R.string.save_password_label)
+                    .setMessage(com.android.internal.R.string.save_password_message)
+                    .setPositiveButton(com.android.internal.R.string.save_password_notnow,
+                    new DialogInterface.OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialog, int which) {
+                            resumeMsg.sendToTarget();
+                        }
+                    })
+                    .setNeutralButton(com.android.internal.R.string.save_password_remember,
+                    new DialogInterface.OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialog, int which) {
+                            remember.sendToTarget();
+                        }
+                    })
+                    .setNegativeButton(com.android.internal.R.string.save_password_never,
+                    new DialogInterface.OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialog, int which) {
+                            neverRemember.sendToTarget();
+                        }
+                    })
+                    .setOnCancelListener(new OnCancelListener() {
+                        @Override
+                        public void onCancel(DialogInterface dialog) {
+                            resumeMsg.sendToTarget();
+                        }
+                    }).show();
+            // Return true so that WebViewCore will pause while the dialog is
+            // up.
+            rVal = true;
+        }
+       return rVal;
+    }
+
+    @Override
+    public void setScrollBarStyle(int style) {
+        if (style == View.SCROLLBARS_INSIDE_INSET
+                || style == View.SCROLLBARS_OUTSIDE_INSET) {
+            mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = false;
+        } else {
+            mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = true;
+        }
+        super.setScrollBarStyle(style);
+    }
+
+    /**
+     * Specify whether the horizontal scrollbar has overlay style.
+     * @param overlay TRUE if horizontal scrollbar should have overlay style.
+     */
+    public void setHorizontalScrollbarOverlay(boolean overlay) {
+        checkThread();
+        mOverlayHorizontalScrollbar = overlay;
+    }
+
+    /**
+     * Specify whether the vertical scrollbar has overlay style.
+     * @param overlay TRUE if vertical scrollbar should have overlay style.
+     */
+    public void setVerticalScrollbarOverlay(boolean overlay) {
+        checkThread();
+        mOverlayVerticalScrollbar = overlay;
+    }
+
+    /**
+     * Return whether horizontal scrollbar has overlay style
+     * @return TRUE if horizontal scrollbar has overlay style.
+     */
+    public boolean overlayHorizontalScrollbar() {
+        checkThread();
+        return mOverlayHorizontalScrollbar;
+    }
+
+    /**
+     * Return whether vertical scrollbar has overlay style
+     * @return TRUE if vertical scrollbar has overlay style.
+     */
+    public boolean overlayVerticalScrollbar() {
+        checkThread();
+        return mOverlayVerticalScrollbar;
+    }
+
+    /*
+     * Return the width of the view where the content of WebView should render
+     * to.
+     * Note: this can be called from WebCoreThread.
+     */
+    /* package */ int getViewWidth() {
+        if (!isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) {
+            return getWidth();
+        } else {
+            return Math.max(0, getWidth() - getVerticalScrollbarWidth());
+        }
+    }
+
+    /**
+     * Returns the height (in pixels) of the embedded title bar (if any). Does not care about
+     * scrolling
+     * @hide
+     */
+    protected int getTitleHeight() {
+        return mTitleBar != null ? mTitleBar.getHeight() : 0;
+    }
+
+    /**
+     * Return the visible height (in pixels) of the embedded title bar (if any).
+     *
+     * @return This method is obsolete and always returns 0.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public int getVisibleTitleHeight() {
+        // Actually, this method returns the height of the embedded title bar if one is set via the
+        // hidden setEmbeddedTitleBar method.
+        checkThread();
+        return getVisibleTitleHeightImpl();
+    }
+
+    private int getVisibleTitleHeightImpl() {
+        // need to restrict mScrollY due to over scroll
+        return Math.max(getTitleHeight() - Math.max(0, mScrollY),
+                getOverlappingActionModeHeight());
+    }
+
+    private int mCachedOverlappingActionModeHeight = -1;
+
+    private int getOverlappingActionModeHeight() {
+        if (mFindCallback == null) {
+            return 0;
+        }
+        if (mCachedOverlappingActionModeHeight < 0) {
+            getGlobalVisibleRect(mGlobalVisibleRect, mGlobalVisibleOffset);
+            mCachedOverlappingActionModeHeight = Math.max(0,
+                    mFindCallback.getActionModeGlobalBottom() - mGlobalVisibleRect.top);
+        }
+        return mCachedOverlappingActionModeHeight;
+    }
+
+    /*
+     * Return the height of the view where the content of WebView should render
+     * to.  Note that this excludes mTitleBar, if there is one.
+     * Note: this can be called from WebCoreThread.
+     */
+    /* package */ int getViewHeight() {
+        return getViewHeightWithTitle() - getVisibleTitleHeightImpl();
+    }
+
+    int getViewHeightWithTitle() {
+        int height = getHeight();
+        if (isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) {
+            height -= getHorizontalScrollbarHeight();
+        }
+        return height;
+    }
+
+    /**
+     * @return The SSL certificate for the main top-level page or null if
+     * there is no certificate (the site is not secure).
+     */
+    public SslCertificate getCertificate() {
+        checkThread();
+        return mCertificate;
+    }
+
+    /**
+     * Sets the SSL certificate for the main top-level page.
+     */
+    public void setCertificate(SslCertificate certificate) {
+        checkThread();
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "setCertificate=" + certificate);
+        }
+        // here, the certificate can be null (if the site is not secure)
+        mCertificate = certificate;
+    }
+
+    //-------------------------------------------------------------------------
+    // Methods called by activity
+    //-------------------------------------------------------------------------
+
+    /**
+     * Save the username and password for a particular host in the WebView's
+     * internal database.
+     * @param host The host that required the credentials.
+     * @param username The username for the given host.
+     * @param password The password for the given host.
+     */
+    public void savePassword(String host, String username, String password) {
+        checkThread();
+        mDatabase.setUsernamePassword(host, username, password);
+    }
+
+    /**
+     * Set the HTTP authentication credentials for a given host and realm.
+     *
+     * @param host The host for the credentials.
+     * @param realm The realm for the credentials.
+     * @param username The username for the password. If it is null, it means
+     *                 password can't be saved.
+     * @param password The password
+     */
+    public void setHttpAuthUsernamePassword(String host, String realm,
+            String username, String password) {
+        checkThread();
+        mDatabase.setHttpAuthUsernamePassword(host, realm, username, password);
+    }
+
+    /**
+     * Retrieve the HTTP authentication username and password for a given
+     * host & realm pair
+     *
+     * @param host The host for which the credentials apply.
+     * @param realm The realm for which the credentials apply.
+     * @return String[] if found, String[0] is username, which can be null and
+     *         String[1] is password. Return null if it can't find anything.
+     */
+    public String[] getHttpAuthUsernamePassword(String host, String realm) {
+        checkThread();
+        return mDatabase.getHttpAuthUsernamePassword(host, realm);
+    }
+
+    /**
+     * Remove Find or Select ActionModes, if active.
+     */
+    private void clearActionModes() {
+        if (mSelectCallback != null) {
+            mSelectCallback.finish();
+        }
+        if (mFindCallback != null) {
+            mFindCallback.finish();
+        }
+    }
+
+    /**
+     * Called to clear state when moving from one page to another, or changing
+     * in some other way that makes elements associated with the current page
+     * (such as WebTextView or ActionModes) no longer relevant.
+     */
+    private void clearHelpers() {
+        clearTextEntry();
+        clearActionModes();
+        dismissFullScreenMode();
+        cancelSelectDialog();
+    }
+
+    private void cancelSelectDialog() {
+        if (mListBoxDialog != null) {
+            mListBoxDialog.cancel();
+            mListBoxDialog = null;
+        }
+    }
+
+    /**
+     * Destroy the internal state of the WebView. This method should be called
+     * after the WebView has been removed from the view system. No other
+     * methods may be called on a WebView after destroy.
+     */
+    public void destroy() {
+        checkThread();
+        destroyImpl();
+    }
+
+    private void destroyImpl() {
+        clearHelpers();
+        if (mListBoxDialog != null) {
+            mListBoxDialog.dismiss();
+            mListBoxDialog = null;
+        }
+        // remove so that it doesn't cause events
+        if (mWebTextView != null) {
+            mWebTextView.remove();
+            mWebTextView = null;
+        }
+        if (mNativeClass != 0) nativeStopGL();
+        if (mWebViewCore != null) {
+            // Set the handlers to null before destroying WebViewCore so no
+            // more messages will be posted.
+            mCallbackProxy.setWebViewClient(null);
+            mCallbackProxy.setWebChromeClient(null);
+            // Tell WebViewCore to destroy itself
+            synchronized (this) {
+                WebViewCore webViewCore = mWebViewCore;
+                mWebViewCore = null; // prevent using partial webViewCore
+                webViewCore.destroy();
+            }
+            // Remove any pending messages that might not be serviced yet.
+            mPrivateHandler.removeCallbacksAndMessages(null);
+            mCallbackProxy.removeCallbacksAndMessages(null);
+            // Wake up the WebCore thread just in case it is waiting for a
+            // JavaScript dialog.
+            synchronized (mCallbackProxy) {
+                mCallbackProxy.notify();
+            }
+        }
+        if (mNativeClass != 0) {
+            nativeDestroy();
+            mNativeClass = 0;
+        }
+    }
+
+    /**
+     * Enables platform notifications of data state and proxy changes.
+     * Notifications are enabled by default.
+     *
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public static void enablePlatformNotifications() {
+        checkThread();
+        synchronized (WebView.class) {
+            sNotificationsEnabled = true;
+            Context context = JniUtil.getContext();
+            if (context != null)
+                setupProxyListener(context);
+        }
+    }
+
+    /**
+     * Disables platform notifications of data state and proxy changes.
+     * Notifications are enabled by default.
+     *
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public static void disablePlatformNotifications() {
+        checkThread();
+        synchronized (WebView.class) {
+            sNotificationsEnabled = false;
+            Context context = JniUtil.getContext();
+            if (context != null)
+                disableProxyListener(context);
+        }
+    }
+
+    /**
+     * Sets JavaScript engine flags.
+     *
+     * @param flags JS engine flags in a String
+     *
+     * @hide This is an implementation detail.
+     */
+    public void setJsFlags(String flags) {
+        checkThread();
+        mWebViewCore.sendMessage(EventHub.SET_JS_FLAGS, flags);
+    }
+
+    /**
+     * Inform WebView of the network state. This is used to set
+     * the JavaScript property window.navigator.isOnline and
+     * generates the online/offline event as specified in HTML5, sec. 5.7.7
+     * @param networkUp boolean indicating if network is available
+     */
+    public void setNetworkAvailable(boolean networkUp) {
+        checkThread();
+        mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE,
+                networkUp ? 1 : 0, 0);
+    }
+
+    /**
+     * Inform WebView about the current network type.
+     * {@hide}
+     */
+    public void setNetworkType(String type, String subtype) {
+        checkThread();
+        Map<String, String> map = new HashMap<String, String>();
+        map.put("type", type);
+        map.put("subtype", subtype);
+        mWebViewCore.sendMessage(EventHub.SET_NETWORK_TYPE, map);
+    }
+    /**
+     * Save the state of this WebView used in
+     * {@link android.app.Activity#onSaveInstanceState}. Please note that this
+     * method no longer stores the display data for this WebView. The previous
+     * behavior could potentially leak files if {@link #restoreState} was never
+     * called. See {@link #savePicture} and {@link #restorePicture} for saving
+     * and restoring the display data.
+     * @param outState The Bundle to store the WebView state.
+     * @return The same copy of the back/forward list used to save the state. If
+     *         saveState fails, the returned list will be null.
+     * @see #savePicture
+     * @see #restorePicture
+     */
+    public WebBackForwardList saveState(Bundle outState) {
+        checkThread();
+        if (outState == null) {
+            return null;
+        }
+        // We grab a copy of the back/forward list because a client of WebView
+        // may have invalidated the history list by calling clearHistory.
+        WebBackForwardList list = copyBackForwardList();
+        final int currentIndex = list.getCurrentIndex();
+        final int size = list.getSize();
+        // We should fail saving the state if the list is empty or the index is
+        // not in a valid range.
+        if (currentIndex < 0 || currentIndex >= size || size == 0) {
+            return null;
+        }
+        outState.putInt("index", currentIndex);
+        // FIXME: This should just be a byte[][] instead of ArrayList but
+        // Parcel.java does not have the code to handle multi-dimensional
+        // arrays.
+        ArrayList<byte[]> history = new ArrayList<byte[]>(size);
+        for (int i = 0; i < size; i++) {
+            WebHistoryItem item = list.getItemAtIndex(i);
+            if (null == item) {
+                // FIXME: this shouldn't happen
+                // need to determine how item got set to null
+                Log.w(LOGTAG, "saveState: Unexpected null history item.");
+                return null;
+            }
+            byte[] data = item.getFlattenedData();
+            if (data == null) {
+                // It would be very odd to not have any data for a given history
+                // item. And we will fail to rebuild the history list without
+                // flattened data.
+                return null;
+            }
+            history.add(data);
+        }
+        outState.putSerializable("history", history);
+        if (mCertificate != null) {
+            outState.putBundle("certificate",
+                               SslCertificate.saveState(mCertificate));
+        }
+        outState.putBoolean("privateBrowsingEnabled", isPrivateBrowsingEnabled());
+        mZoomManager.saveZoomState(outState);
+        return list;
+    }
+
+    /**
+     * Save the current display data to the Bundle given. Used in conjunction
+     * with {@link #saveState}.
+     * @param b A Bundle to store the display data.
+     * @param dest The file to store the serialized picture data. Will be
+     *             overwritten with this WebView's picture data.
+     * @return True if the picture was successfully saved.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public boolean savePicture(Bundle b, final File dest) {
+        checkThread();
+        if (dest == null || b == null) {
+            return false;
+        }
+        final Picture p = capturePicture();
+        // Use a temporary file while writing to ensure the destination file
+        // contains valid data.
+        final File temp = new File(dest.getPath() + ".writing");
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                FileOutputStream out = null;
+                try {
+                    out = new FileOutputStream(temp);
+                    p.writeToStream(out);
+                    // Writing the picture succeeded, rename the temporary file
+                    // to the destination.
+                    temp.renameTo(dest);
+                } catch (Exception e) {
+                    // too late to do anything about it.
+                } finally {
+                    if (out != null) {
+                        try {
+                            out.close();
+                        } catch (Exception e) {
+                            // Can't do anything about that
+                        }
+                    }
+                    temp.delete();
+                }
+            }
+        }).start();
+        // now update the bundle
+        b.putInt("scrollX", mScrollX);
+        b.putInt("scrollY", mScrollY);
+        mZoomManager.saveZoomState(b);
+        return true;
+    }
+
+    private void restoreHistoryPictureFields(Picture p, Bundle b) {
+        int sx = b.getInt("scrollX", 0);
+        int sy = b.getInt("scrollY", 0);
+
+        mDrawHistory = true;
+        mHistoryPicture = p;
+
+        mScrollX = sx;
+        mScrollY = sy;
+        mZoomManager.restoreZoomState(b);
+        final float scale = mZoomManager.getScale();
+        mHistoryWidth = Math.round(p.getWidth() * scale);
+        mHistoryHeight = Math.round(p.getHeight() * scale);
+
+        invalidate();
+    }
+
+    /**
+     * Restore the display data that was save in {@link #savePicture}. Used in
+     * conjunction with {@link #restoreState}.
+     *
+     * Note that this will not work if the WebView is hardware accelerated.
+     * @param b A Bundle containing the saved display data.
+     * @param src The file where the picture data was stored.
+     * @return True if the picture was successfully restored.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public boolean restorePicture(Bundle b, File src) {
+        checkThread();
+        if (src == null || b == null) {
+            return false;
+        }
+        if (!src.exists()) {
+            return false;
+        }
+        try {
+            final FileInputStream in = new FileInputStream(src);
+            final Bundle copy = new Bundle(b);
+            new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        final Picture p = Picture.createFromStream(in);
+                        if (p != null) {
+                            // Post a runnable on the main thread to update the
+                            // history picture fields.
+                            mPrivateHandler.post(new Runnable() {
+                                @Override
+                                public void run() {
+                                    restoreHistoryPictureFields(p, copy);
+                                }
+                            });
+                        }
+                    } finally {
+                        try {
+                            in.close();
+                        } catch (Exception e) {
+                            // Nothing we can do now.
+                        }
+                    }
+                }
+            }).start();
+        } catch (FileNotFoundException e){
+            e.printStackTrace();
+        }
+        return true;
+    }
+
+    /**
+     * Saves the view data to the output stream. The output is highly
+     * version specific, and may not be able to be loaded by newer versions
+     * of WebView.
+     * @param stream The {@link OutputStream} to save to
+     * @return True if saved successfully
+     * @hide
+     */
+    public boolean saveViewState(OutputStream stream) {
+        try {
+            return ViewStateSerializer.serializeViewState(stream, this);
+        } catch (IOException e) {
+            Log.w(LOGTAG, "Failed to saveViewState", e);
+        }
+        return false;
+    }
+
+    /**
+     * Loads the view data from the input stream. See
+     * {@link #saveViewState(OutputStream)} for more information.
+     * @param stream The {@link InputStream} to load from
+     * @return True if loaded successfully
+     * @hide
+     */
+    public boolean loadViewState(InputStream stream) {
+        try {
+            mLoadedPicture = ViewStateSerializer.deserializeViewState(stream, this);
+            mBlockWebkitViewMessages = true;
+            setNewPicture(mLoadedPicture, true);
+            mLoadedPicture.mViewState = null;
+            return true;
+        } catch (IOException e) {
+            Log.w(LOGTAG, "Failed to loadViewState", e);
+        }
+        return false;
+    }
+
+    /**
+     * Clears the view state set with {@link #loadViewState(InputStream)}.
+     * This WebView will then switch to showing the content from webkit
+     * @hide
+     */
+    public void clearViewState() {
+        mBlockWebkitViewMessages = false;
+        mLoadedPicture = null;
+        invalidate();
+    }
+
+    /**
+     * Restore the state of this WebView from the given map used in
+     * {@link android.app.Activity#onRestoreInstanceState}. This method should
+     * be called to restore the state of the WebView before using the object. If
+     * it is called after the WebView has had a chance to build state (load
+     * pages, create a back/forward list, etc.) there may be undesirable
+     * side-effects. Please note that this method no longer restores the
+     * display data for this WebView. See {@link #savePicture} and {@link
+     * #restorePicture} for saving and restoring the display data.
+     * @param inState The incoming Bundle of state.
+     * @return The restored back/forward list or null if restoreState failed.
+     * @see #savePicture
+     * @see #restorePicture
+     */
+    public WebBackForwardList restoreState(Bundle inState) {
+        checkThread();
+        WebBackForwardList returnList = null;
+        if (inState == null) {
+            return returnList;
+        }
+        if (inState.containsKey("index") && inState.containsKey("history")) {
+            mCertificate = SslCertificate.restoreState(
+                inState.getBundle("certificate"));
+
+            final WebBackForwardList list = mCallbackProxy.getBackForwardList();
+            final int index = inState.getInt("index");
+            // We can't use a clone of the list because we need to modify the
+            // shared copy, so synchronize instead to prevent concurrent
+            // modifications.
+            synchronized (list) {
+                final List<byte[]> history =
+                        (List<byte[]>) inState.getSerializable("history");
+                final int size = history.size();
+                // Check the index bounds so we don't crash in native code while
+                // restoring the history index.
+                if (index < 0 || index >= size) {
+                    return null;
+                }
+                for (int i = 0; i < size; i++) {
+                    byte[] data = history.remove(0);
+                    if (data == null) {
+                        // If we somehow have null data, we cannot reconstruct
+                        // the item and thus our history list cannot be rebuilt.
+                        return null;
+                    }
+                    WebHistoryItem item = new WebHistoryItem(data);
+                    list.addHistoryItem(item);
+                }
+                // Grab the most recent copy to return to the caller.
+                returnList = copyBackForwardList();
+                // Update the copy to have the correct index.
+                returnList.setCurrentIndex(index);
+            }
+            // Restore private browsing setting.
+            if (inState.getBoolean("privateBrowsingEnabled")) {
+                getSettings().setPrivateBrowsingEnabled(true);
+            }
+            mZoomManager.restoreZoomState(inState);
+            // Remove all pending messages because we are restoring previous
+            // state.
+            mWebViewCore.removeMessages();
+            // Send a restore state message.
+            mWebViewCore.sendMessage(EventHub.RESTORE_STATE, index);
+        }
+        return returnList;
+    }
+
+    /**
+     * Load the given URL with the specified additional HTTP headers.
+     * @param url The URL of the resource to load.
+     * @param additionalHttpHeaders The additional headers to be used in the
+     *            HTTP request for this URL, specified as a map from name to
+     *            value. Note that if this map contains any of the headers
+     *            that are set by default by the WebView, such as those
+     *            controlling caching, accept types or the User-Agent, their
+     *            values may be overriden by the WebView's defaults.
+     */
+    public void loadUrl(String url, Map<String, String> additionalHttpHeaders) {
+        checkThread();
+        loadUrlImpl(url, additionalHttpHeaders);
+    }
+
+    private void loadUrlImpl(String url, Map<String, String> extraHeaders) {
+        switchOutDrawHistory();
+        WebViewCore.GetUrlData arg = new WebViewCore.GetUrlData();
+        arg.mUrl = url;
+        arg.mExtraHeaders = extraHeaders;
+        mWebViewCore.sendMessage(EventHub.LOAD_URL, arg);
+        clearHelpers();
+    }
+
+    /**
+     * Load the given URL.
+     * @param url The URL of the resource to load.
+     */
+    public void loadUrl(String url) {
+        checkThread();
+        loadUrlImpl(url);
+    }
+
+    private void loadUrlImpl(String url) {
+        if (url == null) {
+            return;
+        }
+        loadUrlImpl(url, null);
+    }
+
+    /**
+     * Load the url with postData using "POST" method into the WebView. If url
+     * is not a network url, it will be loaded with {link
+     * {@link #loadUrl(String)} instead.
+     *
+     * @param url The url of the resource to load.
+     * @param postData The data will be passed to "POST" request.
+     */
+    public void postUrl(String url, byte[] postData) {
+        checkThread();
+        if (URLUtil.isNetworkUrl(url)) {
+            switchOutDrawHistory();
+            WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData();
+            arg.mUrl = url;
+            arg.mPostData = postData;
+            mWebViewCore.sendMessage(EventHub.POST_URL, arg);
+            clearHelpers();
+        } else {
+            loadUrlImpl(url);
+        }
+    }
+
+    /**
+     * Load the given data into the WebView using a 'data' scheme URL.
+     * <p>
+     * Note that JavaScript's same origin policy means that script running in a
+     * page loaded using this method will be unable to access content loaded
+     * using any scheme other than 'data', including 'http(s)'. To avoid this
+     * restriction, use {@link
+     * #loadDataWithBaseURL(String,String,String,String,String)
+     * loadDataWithBaseURL()} with an appropriate base URL.
+     * <p>
+     * If the value of the encoding parameter is 'base64', then the data must
+     * be encoded as base64. Otherwise, the data must use ASCII encoding for
+     * octets inside the range of safe URL characters and use the standard %xx
+     * hex encoding of URLs for octets outside that range. For example,
+     * '#', '%', '\', '?' should be replaced by %23, %25, %27, %3f respectively.
+     * <p>
+     * The 'data' scheme URL formed by this method uses the default US-ASCII
+     * charset. If you need need to set a different charset, you should form a
+     * 'data' scheme URL which explicitly specifies a charset parameter in the
+     * mediatype portion of the URL and call {@link #loadUrl(String)} instead.
+     * Note that the charset obtained from the mediatype portion of a data URL
+     * always overrides that specified in the HTML or XML document itself.
+     * @param data A String of data in the given encoding.
+     * @param mimeType The MIME type of the data, e.g. 'text/html'.
+     * @param encoding The encoding of the data.
+     */
+    public void loadData(String data, String mimeType, String encoding) {
+        checkThread();
+        loadDataImpl(data, mimeType, encoding);
+    }
+
+    private void loadDataImpl(String data, String mimeType, String encoding) {
+        StringBuilder dataUrl = new StringBuilder("data:");
+        dataUrl.append(mimeType);
+        if ("base64".equals(encoding)) {
+            dataUrl.append(";base64");
+        }
+        dataUrl.append(",");
+        dataUrl.append(data);
+        loadUrlImpl(dataUrl.toString());
+    }
+
+    /**
+     * Load the given data into the WebView, using baseUrl as the base URL for
+     * the content. The base URL is used both to resolve relative URLs and when
+     * applying JavaScript's same origin policy. The historyUrl is used for the
+     * history entry.
+     * <p>
+     * Note that content specified in this way can access local device files
+     * (via 'file' scheme URLs) only if baseUrl specifies a scheme other than
+     * 'http', 'https', 'ftp', 'ftps', 'about' or 'javascript'.
+     * <p>
+     * If the base URL uses the data scheme, this method is equivalent to
+     * calling {@link #loadData(String,String,String) loadData()} and the
+     * historyUrl is ignored.
+     * @param baseUrl URL to use as the page's base URL. If null defaults to
+     *            'about:blank'
+     * @param data A String of data in the given encoding.
+     * @param mimeType The MIMEType of the data, e.g. 'text/html'. If null,
+     *            defaults to 'text/html'.
+     * @param encoding The encoding of the data.
+     * @param historyUrl URL to use as the history entry, if null defaults to
+     *            'about:blank'.
+     */
+    public void loadDataWithBaseURL(String baseUrl, String data,
+            String mimeType, String encoding, String historyUrl) {
+        checkThread();
+
+        if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) {
+            loadDataImpl(data, mimeType, encoding);
+            return;
+        }
+        switchOutDrawHistory();
+        WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData();
+        arg.mBaseUrl = baseUrl;
+        arg.mData = data;
+        arg.mMimeType = mimeType;
+        arg.mEncoding = encoding;
+        arg.mHistoryUrl = historyUrl;
+        mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg);
+        clearHelpers();
+    }
+
+    /**
+     * Saves the current view as a web archive.
+     *
+     * @param filename The filename where the archive should be placed.
+     */
+    public void saveWebArchive(String filename) {
+        checkThread();
+        saveWebArchiveImpl(filename, false, null);
+    }
+
+    /* package */ static class SaveWebArchiveMessage {
+        SaveWebArchiveMessage (String basename, boolean autoname, ValueCallback<String> callback) {
+            mBasename = basename;
+            mAutoname = autoname;
+            mCallback = callback;
+        }
+
+        /* package */ final String mBasename;
+        /* package */ final boolean mAutoname;
+        /* package */ final ValueCallback<String> mCallback;
+        /* package */ String mResultFile;
+    }
+
+    /**
+     * Saves the current view as a web archive.
+     *
+     * @param basename The filename where the archive should be placed.
+     * @param autoname If false, takes basename to be a file. If true, basename
+     *                 is assumed to be a directory in which a filename will be
+     *                 chosen according to the url of the current page.
+     * @param callback Called after the web archive has been saved. The
+     *                 parameter for onReceiveValue will either be the filename
+     *                 under which the file was saved, or null if saving the
+     *                 file failed.
+     */
+    public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) {
+        checkThread();
+        saveWebArchiveImpl(basename, autoname, callback);
+    }
+
+    private void saveWebArchiveImpl(String basename, boolean autoname,
+            ValueCallback<String> callback) {
+        mWebViewCore.sendMessage(EventHub.SAVE_WEBARCHIVE,
+            new SaveWebArchiveMessage(basename, autoname, callback));
+    }
+
+    /**
+     * Stop the current load.
+     */
+    public void stopLoading() {
+        checkThread();
+        // TODO: should we clear all the messages in the queue before sending
+        // STOP_LOADING?
+        switchOutDrawHistory();
+        mWebViewCore.sendMessage(EventHub.STOP_LOADING);
+    }
+
+    /**
+     * Reload the current url.
+     */
+    public void reload() {
+        checkThread();
+        clearHelpers();
+        switchOutDrawHistory();
+        mWebViewCore.sendMessage(EventHub.RELOAD);
+    }
+
+    /**
+     * Return true if this WebView has a back history item.
+     * @return True iff this WebView has a back history item.
+     */
+    public boolean canGoBack() {
+        checkThread();
+        WebBackForwardList l = mCallbackProxy.getBackForwardList();
+        synchronized (l) {
+            if (l.getClearPending()) {
+                return false;
+            } else {
+                return l.getCurrentIndex() > 0;
+            }
+        }
+    }
+
+    /**
+     * Go back in the history of this WebView.
+     */
+    public void goBack() {
+        checkThread();
+        goBackOrForwardImpl(-1);
+    }
+
+    /**
+     * Return true if this WebView has a forward history item.
+     * @return True iff this Webview has a forward history item.
+     */
+    public boolean canGoForward() {
+        checkThread();
+        WebBackForwardList l = mCallbackProxy.getBackForwardList();
+        synchronized (l) {
+            if (l.getClearPending()) {
+                return false;
+            } else {
+                return l.getCurrentIndex() < l.getSize() - 1;
+            }
+        }
+    }
+
+    /**
+     * Go forward in the history of this WebView.
+     */
+    public void goForward() {
+        checkThread();
+        goBackOrForwardImpl(1);
+    }
+
+    /**
+     * Return true if the page can go back or forward the given
+     * number of steps.
+     * @param steps The negative or positive number of steps to move the
+     *              history.
+     */
+    public boolean canGoBackOrForward(int steps) {
+        checkThread();
+        WebBackForwardList l = mCallbackProxy.getBackForwardList();
+        synchronized (l) {
+            if (l.getClearPending()) {
+                return false;
+            } else {
+                int newIndex = l.getCurrentIndex() + steps;
+                return newIndex >= 0 && newIndex < l.getSize();
+            }
+        }
+    }
+
+    /**
+     * Go to the history item that is the number of steps away from
+     * the current item. Steps is negative if backward and positive
+     * if forward.
+     * @param steps The number of steps to take back or forward in the back
+     *              forward list.
+     */
+    public void goBackOrForward(int steps) {
+        checkThread();
+        goBackOrForwardImpl(steps);
+    }
+
+    private void goBackOrForwardImpl(int steps) {
+        goBackOrForward(steps, false);
+    }
+
+    private void goBackOrForward(int steps, boolean ignoreSnapshot) {
+        if (steps != 0) {
+            clearHelpers();
+            mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps,
+                    ignoreSnapshot ? 1 : 0);
+        }
+    }
+
+    /**
+     * Returns true if private browsing is enabled in this WebView.
+     */
+    public boolean isPrivateBrowsingEnabled() {
+        checkThread();
+        return getSettings().isPrivateBrowsingEnabled();
+    }
+
+    private void startPrivateBrowsing() {
+        getSettings().setPrivateBrowsingEnabled(true);
+    }
+
+    private boolean extendScroll(int y) {
+        int finalY = mScroller.getFinalY();
+        int newY = pinLocY(finalY + y);
+        if (newY == finalY) return false;
+        mScroller.setFinalY(newY);
+        mScroller.extendDuration(computeDuration(0, y));
+        return true;
+    }
+
+    /**
+     * Scroll the contents of the view up by half the view size
+     * @param top true to jump to the top of the page
+     * @return true if the page was scrolled
+     */
+    public boolean pageUp(boolean top) {
+        checkThread();
+        if (mNativeClass == 0) {
+            return false;
+        }
+        nativeClearCursor(); // start next trackball movement from page edge
+        if (top) {
+            // go to the top of the document
+            return pinScrollTo(mScrollX, 0, true, 0);
+        }
+        // Page up
+        int h = getHeight();
+        int y;
+        if (h > 2 * PAGE_SCROLL_OVERLAP) {
+            y = -h + PAGE_SCROLL_OVERLAP;
+        } else {
+            y = -h / 2;
+        }
+        return mScroller.isFinished() ? pinScrollBy(0, y, true, 0)
+                : extendScroll(y);
+    }
+
+    /**
+     * Scroll the contents of the view down by half the page size
+     * @param bottom true to jump to bottom of page
+     * @return true if the page was scrolled
+     */
+    public boolean pageDown(boolean bottom) {
+        checkThread();
+        if (mNativeClass == 0) {
+            return false;
+        }
+        nativeClearCursor(); // start next trackball movement from page edge
+        if (bottom) {
+            return pinScrollTo(mScrollX, computeRealVerticalScrollRange(), true, 0);
+        }
+        // Page down.
+        int h = getHeight();
+        int y;
+        if (h > 2 * PAGE_SCROLL_OVERLAP) {
+            y = h - PAGE_SCROLL_OVERLAP;
+        } else {
+            y = h / 2;
+        }
+        return mScroller.isFinished() ? pinScrollBy(0, y, true, 0)
+                : extendScroll(y);
+    }
+
+    /**
+     * Clear the view so that onDraw() will draw nothing but white background,
+     * and onMeasure() will return 0 if MeasureSpec is not MeasureSpec.EXACTLY
+     */
+    public void clearView() {
+        checkThread();
+        mContentWidth = 0;
+        mContentHeight = 0;
+        setBaseLayer(0, null, false, false);
+        mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT);
+    }
+
+    /**
+     * Return a new picture that captures the current display of the webview.
+     * This is a copy of the display, and will be unaffected if the webview
+     * later loads a different URL.
+     *
+     * @return a picture containing the current contents of the view. Note this
+     *         picture is of the entire document, and is not restricted to the
+     *         bounds of the view.
+     */
+    public Picture capturePicture() {
+        checkThread();
+        if (mNativeClass == 0) return null;
+        Picture result = new Picture();
+        nativeCopyBaseContentToPicture(result);
+        return result;
+    }
+
+    /**
+     *  Return true if the browser is displaying a TextView for text input.
+     */
+    private boolean inEditingMode() {
+        return mWebTextView != null && mWebTextView.getParent() != null;
+    }
+
+    /**
+     * Remove the WebTextView.
+     */
+    private void clearTextEntry() {
+        if (inEditingMode()) {
+            mWebTextView.remove();
+        } else {
+            // The keyboard may be open with the WebView as the served view
+            hideSoftKeyboard();
+        }
+    }
+
+    /**
+     * Return the current scale of the WebView
+     * @return The current scale.
+     */
+    public float getScale() {
+        checkThread();
+        return mZoomManager.getScale();
+    }
+
+    /**
+     * Compute the reading level scale of the WebView
+     * @param scale The current scale.
+     * @return The reading level scale.
+     */
+    /*package*/ float computeReadingLevelScale(float scale) {
+        return mZoomManager.computeReadingLevelScale(scale);
+    }
+
+    /**
+     * Set the initial scale for the WebView. 0 means default. If
+     * {@link WebSettings#getUseWideViewPort()} is true, it zooms out all the
+     * way. Otherwise it starts with 100%. If initial scale is greater than 0,
+     * WebView starts with this value as initial scale.
+     * Please note that unlike the scale properties in the viewport meta tag,
+     * this method doesn't take the screen density into account.
+     *
+     * @param scaleInPercent The initial scale in percent.
+     */
+    public void setInitialScale(int scaleInPercent) {
+        checkThread();
+        mZoomManager.setInitialScaleInPercent(scaleInPercent);
+    }
+
+    /**
+     * Invoke the graphical zoom picker widget for this WebView. This will
+     * result in the zoom widget appearing on the screen to control the zoom
+     * level of this WebView.
+     */
+    public void invokeZoomPicker() {
+        checkThread();
+        if (!getSettings().supportZoom()) {
+            Log.w(LOGTAG, "This WebView doesn't support zoom.");
+            return;
+        }
+        clearHelpers();
+        mZoomManager.invokeZoomPicker();
+    }
+
+    /**
+     * Return a HitTestResult based on the current cursor node. If a HTML::a tag
+     * is found and the anchor has a non-JavaScript url, the HitTestResult type
+     * is set to SRC_ANCHOR_TYPE and the url is set in the "extra" field. If the
+     * anchor does not have a url or if it is a JavaScript url, the type will
+     * be UNKNOWN_TYPE and the url has to be retrieved through
+     * {@link #requestFocusNodeHref} asynchronously. If a HTML::img tag is
+     * found, the HitTestResult type is set to IMAGE_TYPE and the url is set in
+     * the "extra" field. A type of
+     * SRC_IMAGE_ANCHOR_TYPE indicates an anchor with a url that has an image as
+     * a child node. If a phone number is found, the HitTestResult type is set
+     * to PHONE_TYPE and the phone number is set in the "extra" field of
+     * HitTestResult. If a map address is found, the HitTestResult type is set
+     * to GEO_TYPE and the address is set in the "extra" field of HitTestResult.
+     * If an email address is found, the HitTestResult type is set to EMAIL_TYPE
+     * and the email is set in the "extra" field of HitTestResult. Otherwise,
+     * HitTestResult type is set to UNKNOWN_TYPE.
+     */
+    public HitTestResult getHitTestResult() {
+        checkThread();
+        return hitTestResult(mInitialHitTestResult);
+    }
+
+    private HitTestResult hitTestResult(HitTestResult fallback) {
+        if (mNativeClass == 0 || sDisableNavcache) {
+            return fallback;
+        }
+
+        HitTestResult result = new HitTestResult();
+        if (nativeHasCursorNode()) {
+            if (nativeCursorIsTextInput()) {
+                result.setType(HitTestResult.EDIT_TEXT_TYPE);
+            } else {
+                String text = nativeCursorText();
+                if (text != null) {
+                    if (text.startsWith(SCHEME_TEL)) {
+                        result.setType(HitTestResult.PHONE_TYPE);
+                        result.setExtra(URLDecoder.decode(text
+                                .substring(SCHEME_TEL.length())));
+                    } else if (text.startsWith(SCHEME_MAILTO)) {
+                        result.setType(HitTestResult.EMAIL_TYPE);
+                        result.setExtra(text.substring(SCHEME_MAILTO.length()));
+                    } else if (text.startsWith(SCHEME_GEO)) {
+                        result.setType(HitTestResult.GEO_TYPE);
+                        result.setExtra(URLDecoder.decode(text
+                                .substring(SCHEME_GEO.length())));
+                    } else if (nativeCursorIsAnchor()) {
+                        result.setType(HitTestResult.SRC_ANCHOR_TYPE);
+                        result.setExtra(text);
+                    }
+                }
+            }
+        } else if (fallback != null) {
+            /* If webkit causes a rebuild while the long press is in progress,
+             * the cursor node may be reset, even if it is still around. This
+             * uses the cursor node saved when the touch began. Since the
+             * nativeImageURI below only changes the result if it is successful,
+             * this uses the data beneath the touch if available or the original
+             * tap data otherwise.
+             */
+            Log.v(LOGTAG, "hitTestResult use fallback");
+            result = fallback;
+        }
+        int type = result.getType();
+        if (type == HitTestResult.UNKNOWN_TYPE
+                || type == HitTestResult.SRC_ANCHOR_TYPE) {
+            // Now check to see if it is an image.
+            int contentX = viewToContentX(mLastTouchX + mScrollX);
+            int contentY = viewToContentY(mLastTouchY + mScrollY);
+            String text = nativeImageURI(contentX, contentY);
+            if (text != null) {
+                result.setType(type == HitTestResult.UNKNOWN_TYPE ?
+                        HitTestResult.IMAGE_TYPE :
+                        HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
+                result.setExtra(text);
+            }
+        }
+        return result;
+    }
+
+    int getBlockLeftEdge(int x, int y, float readingScale) {
+        if (!sDisableNavcache) {
+            return nativeGetBlockLeftEdge(x, y, readingScale);
+        }
+
+        float invReadingScale = 1.0f / readingScale;
+        int readingWidth = (int) (getViewWidth() * invReadingScale);
+        int left = NO_LEFTEDGE;
+        if (mFocusedNode != null) {
+            final int length = mFocusedNode.mEnclosingParentRects.length;
+            for (int i = 0; i < length; i++) {
+                Rect rect = mFocusedNode.mEnclosingParentRects[i];
+                if (rect.width() < mFocusedNode.mHitTestSlop) {
+                    // ignore bounding boxes that are too small
+                    continue;
+                } else if (left != NO_LEFTEDGE && rect.width() > readingWidth) {
+                    // stop when bounding box doesn't fit the screen width
+                    // at reading scale
+                    break;
+                }
+
+                left = rect.left;
+            }
+        }
+
+        return left;
+    }
+
+    // Called by JNI when the DOM has changed the focus.  Clear the focus so
+    // that new keys will go to the newly focused field
+    private void domChangedFocus() {
+        if (inEditingMode()) {
+            mPrivateHandler.obtainMessage(DOM_FOCUS_CHANGED).sendToTarget();
+        }
+    }
+    /**
+     * Request the anchor or image element URL at the last tapped point.
+     * If hrefMsg is null, this method returns immediately and does not
+     * dispatch hrefMsg to its target. If the tapped point hits an image,
+     * an anchor, or an image in an anchor, the message associates
+     * strings in named keys in its data. The value paired with the key
+     * may be an empty string.
+     *
+     * @param hrefMsg This message will be dispatched with the result of the
+     *                request. The message data contains three keys:
+     *                - "url" returns the anchor's href attribute.
+     *                - "title" returns the anchor's text.
+     *                - "src" returns the image's src attribute.
+     */
+    public void requestFocusNodeHref(Message hrefMsg) {
+        checkThread();
+        if (hrefMsg == null) {
+            return;
+        }
+        int contentX = viewToContentX(mLastTouchX + mScrollX);
+        int contentY = viewToContentY(mLastTouchY + mScrollY);
+        if (mFocusedNode != null && mFocusedNode.mHitTestX == contentX
+                && mFocusedNode.mHitTestY == contentY) {
+            hrefMsg.getData().putString(FocusNodeHref.URL, mFocusedNode.mLinkUrl);
+            hrefMsg.getData().putString(FocusNodeHref.TITLE, mFocusedNode.mAnchorText);
+            hrefMsg.getData().putString(FocusNodeHref.SRC, mFocusedNode.mImageUrl);
+            hrefMsg.sendToTarget();
+            return;
+        }
+        if (nativeHasCursorNode()) {
+            Rect cursorBounds = cursorRingBounds();
+            if (!cursorBounds.contains(contentX, contentY)) {
+                int slop = viewToContentDimension(mNavSlop);
+                cursorBounds.inset(-slop, -slop);
+                if (cursorBounds.contains(contentX, contentY)) {
+                    contentX = cursorBounds.centerX();
+                    contentY = cursorBounds.centerY();
+                }
+            }
+        }
+        mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF,
+                contentX, contentY, hrefMsg);
+    }
+
+    /**
+     * Request the url of the image last touched by the user. msg will be sent
+     * to its target with a String representing the url as its object.
+     *
+     * @param msg This message will be dispatched with the result of the request
+     *            as the data member with "url" as key. The result can be null.
+     */
+    public void requestImageRef(Message msg) {
+        checkThread();
+        if (0 == mNativeClass) return; // client isn't initialized
+        int contentX = viewToContentX(mLastTouchX + mScrollX);
+        int contentY = viewToContentY(mLastTouchY + mScrollY);
+        String ref = nativeImageURI(contentX, contentY);
+        Bundle data = msg.getData();
+        data.putString("url", ref);
+        msg.setData(data);
+        msg.sendToTarget();
+    }
+
+    static int pinLoc(int x, int viewMax, int docMax) {
+//        Log.d(LOGTAG, "-- pinLoc " + x + " " + viewMax + " " + docMax);
+        if (docMax < viewMax) {   // the doc has room on the sides for "blank"
+            // pin the short document to the top/left of the screen
+            x = 0;
+//            Log.d(LOGTAG, "--- center " + x);
+        } else if (x < 0) {
+            x = 0;
+//            Log.d(LOGTAG, "--- zero");
+        } else if (x + viewMax > docMax) {
+            x = docMax - viewMax;
+//            Log.d(LOGTAG, "--- pin " + x);
+        }
+        return x;
+    }
+
+    // Expects x in view coordinates
+    int pinLocX(int x) {
+        if (mInOverScrollMode) return x;
+        return pinLoc(x, getViewWidth(), computeRealHorizontalScrollRange());
+    }
+
+    // Expects y in view coordinates
+    int pinLocY(int y) {
+        if (mInOverScrollMode) return y;
+        return pinLoc(y, getViewHeightWithTitle(),
+                      computeRealVerticalScrollRange() + getTitleHeight());
+    }
+
+    /**
+     * A title bar which is embedded in this WebView, and scrolls along with it
+     * vertically, but not horizontally.
+     */
+    private View mTitleBar;
+
+    /**
+     * the title bar rendering gravity
+     */
+    private int mTitleGravity;
+
+    /**
+     * Add or remove a title bar to be embedded into the WebView, and scroll
+     * along with it vertically, while remaining in view horizontally. Pass
+     * null to remove the title bar from the WebView, and return to drawing
+     * the WebView normally without translating to account for the title bar.
+     * @hide
+     */
+    public void setEmbeddedTitleBar(View v) {
+        if (mTitleBar == v) return;
+        if (mTitleBar != null) {
+            removeView(mTitleBar);
+        }
+        if (null != v) {
+            addView(v, new AbsoluteLayout.LayoutParams(
+                    ViewGroup.LayoutParams.MATCH_PARENT,
+                    ViewGroup.LayoutParams.WRAP_CONTENT, 0, 0));
+        }
+        mTitleBar = v;
+    }
+
+    /**
+     * Set where to render the embedded title bar
+     * NO_GRAVITY at the top of the page
+     * TOP        at the top of the screen
+     * @hide
+     */
+    public void setTitleBarGravity(int gravity) {
+        mTitleGravity = gravity;
+        // force refresh
+        invalidate();
+    }
+
+    /**
+     * Given a distance in view space, convert it to content space. Note: this
+     * does not reflect translation, just scaling, so this should not be called
+     * with coordinates, but should be called for dimensions like width or
+     * height.
+     */
+    private int viewToContentDimension(int d) {
+        return Math.round(d * mZoomManager.getInvScale());
+    }
+
+    /**
+     * Given an x coordinate in view space, convert it to content space.  Also
+     * may be used for absolute heights (such as for the WebTextView's
+     * textSize, which is unaffected by the height of the title bar).
+     */
+    /*package*/ int viewToContentX(int x) {
+        return viewToContentDimension(x);
+    }
+
+    /**
+     * Given a y coordinate in view space, convert it to content space.
+     * Takes into account the height of the title bar if there is one
+     * embedded into the WebView.
+     */
+    /*package*/ int viewToContentY(int y) {
+        return viewToContentDimension(y - getTitleHeight());
+    }
+
+    /**
+     * Given a x coordinate in view space, convert it to content space.
+     * Returns the result as a float.
+     */
+    private float viewToContentXf(int x) {
+        return x * mZoomManager.getInvScale();
+    }
+
+    /**
+     * Given a y coordinate in view space, convert it to content space.
+     * Takes into account the height of the title bar if there is one
+     * embedded into the WebView. Returns the result as a float.
+     */
+    private float viewToContentYf(int y) {
+        return (y - getTitleHeight()) * mZoomManager.getInvScale();
+    }
+
+    /**
+     * Given a distance in content space, convert it to view space. Note: this
+     * does not reflect translation, just scaling, so this should not be called
+     * with coordinates, but should be called for dimensions like width or
+     * height.
+     */
+    /*package*/ int contentToViewDimension(int d) {
+        return Math.round(d * mZoomManager.getScale());
+    }
+
+    /**
+     * Given an x coordinate in content space, convert it to view
+     * space.
+     */
+    /*package*/ int contentToViewX(int x) {
+        return contentToViewDimension(x);
+    }
+
+    /**
+     * Given a y coordinate in content space, convert it to view
+     * space.  Takes into account the height of the title bar.
+     */
+    /*package*/ int contentToViewY(int y) {
+        return contentToViewDimension(y) + getTitleHeight();
+    }
+
+    private Rect contentToViewRect(Rect x) {
+        return new Rect(contentToViewX(x.left), contentToViewY(x.top),
+                        contentToViewX(x.right), contentToViewY(x.bottom));
+    }
+
+    /*  To invalidate a rectangle in content coordinates, we need to transform
+        the rect into view coordinates, so we can then call invalidate(...).
+
+        Normally, we would just call contentToView[XY](...), which eventually
+        calls Math.round(coordinate * mActualScale). However, for invalidates,
+        we need to account for the slop that occurs with antialiasing. To
+        address that, we are a little more liberal in the size of the rect that
+        we invalidate.
+
+        This liberal calculation calls floor() for the top/left, and ceil() for
+        the bottom/right coordinates. This catches the possible extra pixels of
+        antialiasing that we might have missed with just round().
+     */
+
+    // Called by JNI to invalidate the View, given rectangle coordinates in
+    // content space
+    private void viewInvalidate(int l, int t, int r, int b) {
+        final float scale = mZoomManager.getScale();
+        final int dy = getTitleHeight();
+        invalidate((int)Math.floor(l * scale),
+                   (int)Math.floor(t * scale) + dy,
+                   (int)Math.ceil(r * scale),
+                   (int)Math.ceil(b * scale) + dy);
+    }
+
+    // Called by JNI to invalidate the View after a delay, given rectangle
+    // coordinates in content space
+    private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) {
+        final float scale = mZoomManager.getScale();
+        final int dy = getTitleHeight();
+        postInvalidateDelayed(delay,
+                              (int)Math.floor(l * scale),
+                              (int)Math.floor(t * scale) + dy,
+                              (int)Math.ceil(r * scale),
+                              (int)Math.ceil(b * scale) + dy);
+    }
+
+    private void invalidateContentRect(Rect r) {
+        viewInvalidate(r.left, r.top, r.right, r.bottom);
+    }
+
+    // stop the scroll animation, and don't let a subsequent fling add
+    // to the existing velocity
+    private void abortAnimation() {
+        mScroller.abortAnimation();
+        mLastVelocity = 0;
+    }
+
+    /* call from webcoreview.draw(), so we're still executing in the UI thread
+    */
+    private void recordNewContentSize(int w, int h, boolean updateLayout) {
+
+        // premature data from webkit, ignore
+        if ((w | h) == 0) {
+            return;
+        }
+
+        // don't abort a scroll animation if we didn't change anything
+        if (mContentWidth != w || mContentHeight != h) {
+            // record new dimensions
+            mContentWidth = w;
+            mContentHeight = h;
+            // If history Picture is drawn, don't update scroll. They will be
+            // updated when we get out of that mode.
+            if (!mDrawHistory) {
+                // repin our scroll, taking into account the new content size
+                updateScrollCoordinates(pinLocX(mScrollX), pinLocY(mScrollY));
+                if (!mScroller.isFinished()) {
+                    // We are in the middle of a scroll.  Repin the final scroll
+                    // position.
+                    mScroller.setFinalX(pinLocX(mScroller.getFinalX()));
+                    mScroller.setFinalY(pinLocY(mScroller.getFinalY()));
+                }
+            }
+        }
+        contentSizeChanged(updateLayout);
+    }
+
+    // Used to avoid sending many visible rect messages.
+    private Rect mLastVisibleRectSent = new Rect();
+    private Rect mLastGlobalRect = new Rect();
+    private Rect mVisibleRect = new Rect();
+    private Rect mGlobalVisibleRect = new Rect();
+    private Point mScrollOffset = new Point();
+
+    Rect sendOurVisibleRect() {
+        if (mZoomManager.isPreventingWebkitUpdates()) return mLastVisibleRectSent;
+        calcOurContentVisibleRect(mVisibleRect);
+        // Rect.equals() checks for null input.
+        if (!mVisibleRect.equals(mLastVisibleRectSent)) {
+            if (!mBlockWebkitViewMessages) {
+                mScrollOffset.set(mVisibleRect.left, mVisibleRect.top);
+                mWebViewCore.removeMessages(EventHub.SET_SCROLL_OFFSET);
+                mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET,
+                        nativeMoveGeneration(), mSendScrollEvent ? 1 : 0, mScrollOffset);
+            }
+            mLastVisibleRectSent.set(mVisibleRect);
+            mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+        }
+        if (getGlobalVisibleRect(mGlobalVisibleRect)
+                && !mGlobalVisibleRect.equals(mLastGlobalRect)) {
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "sendOurVisibleRect=(" + mGlobalVisibleRect.left + ","
+                        + mGlobalVisibleRect.top + ",r=" + mGlobalVisibleRect.right + ",b="
+                        + mGlobalVisibleRect.bottom);
+            }
+            // TODO: the global offset is only used by windowRect()
+            // in ChromeClientAndroid ; other clients such as touch
+            // and mouse events could return view + screen relative points.
+            if (!mBlockWebkitViewMessages) {
+                mWebViewCore.sendMessage(EventHub.SET_GLOBAL_BOUNDS, mGlobalVisibleRect);
+            }
+            mLastGlobalRect.set(mGlobalVisibleRect);
+        }
+        return mVisibleRect;
+    }
+
+    private Point mGlobalVisibleOffset = new Point();
+    // Sets r to be the visible rectangle of our webview in view coordinates
+    private void calcOurVisibleRect(Rect r) {
+        getGlobalVisibleRect(r, mGlobalVisibleOffset);
+        r.offset(-mGlobalVisibleOffset.x, -mGlobalVisibleOffset.y);
+    }
+
+    // Sets r to be our visible rectangle in content coordinates
+    private void calcOurContentVisibleRect(Rect r) {
+        calcOurVisibleRect(r);
+        r.left = viewToContentX(r.left);
+        // viewToContentY will remove the total height of the title bar.  Add
+        // the visible height back in to account for the fact that if the title
+        // bar is partially visible, the part of the visible rect which is
+        // displaying our content is displaced by that amount.
+        r.top = viewToContentY(r.top + getVisibleTitleHeightImpl());
+        r.right = viewToContentX(r.right);
+        r.bottom = viewToContentY(r.bottom);
+    }
+
+    private Rect mContentVisibleRect = new Rect();
+    // Sets r to be our visible rectangle in content coordinates. We use this
+    // method on the native side to compute the position of the fixed layers.
+    // Uses floating coordinates (necessary to correctly place elements when
+    // the scale factor is not 1)
+    private void calcOurContentVisibleRectF(RectF r) {
+        calcOurVisibleRect(mContentVisibleRect);
+        r.left = viewToContentXf(mContentVisibleRect.left);
+        // viewToContentY will remove the total height of the title bar.  Add
+        // the visible height back in to account for the fact that if the title
+        // bar is partially visible, the part of the visible rect which is
+        // displaying our content is displaced by that amount.
+        r.top = viewToContentYf(mContentVisibleRect.top + getVisibleTitleHeightImpl());
+        r.right = viewToContentXf(mContentVisibleRect.right);
+        r.bottom = viewToContentYf(mContentVisibleRect.bottom);
+    }
+
+    static class ViewSizeData {
+        int mWidth;
+        int mHeight;
+        float mHeightWidthRatio;
+        int mActualViewHeight;
+        int mTextWrapWidth;
+        int mAnchorX;
+        int mAnchorY;
+        float mScale;
+        boolean mIgnoreHeight;
+    }
+
+    /**
+     * Compute unzoomed width and height, and if they differ from the last
+     * values we sent, send them to webkit (to be used as new viewport)
+     *
+     * @param force ensures that the message is sent to webkit even if the width
+     * or height has not changed since the last message
+     *
+     * @return true if new values were sent
+     */
+    boolean sendViewSizeZoom(boolean force) {
+        if (mBlockWebkitViewMessages) return false;
+        if (mZoomManager.isPreventingWebkitUpdates()) return false;
+
+        int viewWidth = getViewWidth();
+        int newWidth = Math.round(viewWidth * mZoomManager.getInvScale());
+        // This height could be fixed and be different from actual visible height.
+        int viewHeight = getViewHeightWithTitle() - getTitleHeight();
+        int newHeight = Math.round(viewHeight * mZoomManager.getInvScale());
+        // Make the ratio more accurate than (newHeight / newWidth), since the
+        // latter both are calculated and rounded.
+        float heightWidthRatio = (float) viewHeight / viewWidth;
+        /*
+         * Because the native side may have already done a layout before the
+         * View system was able to measure us, we have to send a height of 0 to
+         * remove excess whitespace when we grow our width. This will trigger a
+         * layout and a change in content size. This content size change will
+         * mean that contentSizeChanged will either call this method directly or
+         * indirectly from onSizeChanged.
+         */
+        if (newWidth > mLastWidthSent && mWrapContent) {
+            newHeight = 0;
+            heightWidthRatio = 0;
+        }
+        // Actual visible content height.
+        int actualViewHeight = Math.round(getViewHeight() * mZoomManager.getInvScale());
+        // Avoid sending another message if the dimensions have not changed.
+        if (newWidth != mLastWidthSent || newHeight != mLastHeightSent || force ||
+                actualViewHeight != mLastActualHeightSent) {
+            ViewSizeData data = new ViewSizeData();
+            data.mWidth = newWidth;
+            data.mHeight = newHeight;
+            data.mHeightWidthRatio = heightWidthRatio;
+            data.mActualViewHeight = actualViewHeight;
+            data.mTextWrapWidth = Math.round(viewWidth / mZoomManager.getTextWrapScale());
+            data.mScale = mZoomManager.getScale();
+            data.mIgnoreHeight = mZoomManager.isFixedLengthAnimationInProgress()
+                    && !mHeightCanMeasure;
+            data.mAnchorX = mZoomManager.getDocumentAnchorX();
+            data.mAnchorY = mZoomManager.getDocumentAnchorY();
+            mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data);
+            mLastWidthSent = newWidth;
+            mLastHeightSent = newHeight;
+            mLastActualHeightSent = actualViewHeight;
+            mZoomManager.clearDocumentAnchor();
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Update the double-tap zoom.
+     */
+    /* package */ void updateDoubleTapZoom(int doubleTapZoom) {
+        mZoomManager.updateDoubleTapZoom(doubleTapZoom);
+    }
+
+    private int computeRealHorizontalScrollRange() {
+        if (mDrawHistory) {
+            return mHistoryWidth;
+        } else {
+            // to avoid rounding error caused unnecessary scrollbar, use floor
+            return (int) Math.floor(mContentWidth * mZoomManager.getScale());
+        }
+    }
+
+    @Override
+    protected int computeHorizontalScrollRange() {
+        int range = computeRealHorizontalScrollRange();
+
+        // Adjust reported range if overscrolled to compress the scroll bars
+        final int scrollX = mScrollX;
+        final int overscrollRight = computeMaxScrollX();
+        if (scrollX < 0) {
+            range -= scrollX;
+        } else if (scrollX > overscrollRight) {
+            range += scrollX - overscrollRight;
+        }
+
+        return range;
+    }
+
+    @Override
+    protected int computeHorizontalScrollOffset() {
+        return Math.max(mScrollX, 0);
+    }
+
+    private int computeRealVerticalScrollRange() {
+        if (mDrawHistory) {
+            return mHistoryHeight;
+        } else {
+            // to avoid rounding error caused unnecessary scrollbar, use floor
+            return (int) Math.floor(mContentHeight * mZoomManager.getScale());
+        }
+    }
+
+    @Override
+    protected int computeVerticalScrollRange() {
+        int range = computeRealVerticalScrollRange();
+
+        // Adjust reported range if overscrolled to compress the scroll bars
+        final int scrollY = mScrollY;
+        final int overscrollBottom = computeMaxScrollY();
+        if (scrollY < 0) {
+            range -= scrollY;
+        } else if (scrollY > overscrollBottom) {
+            range += scrollY - overscrollBottom;
+        }
+
+        return range;
+    }
+
+    @Override
+    protected int computeVerticalScrollOffset() {
+        return Math.max(mScrollY - getTitleHeight(), 0);
+    }
+
+    @Override
+    protected int computeVerticalScrollExtent() {
+        return getViewHeight();
+    }
+
+    /** @hide */
+    @Override
+    protected void onDrawVerticalScrollBar(Canvas canvas,
+                                           Drawable scrollBar,
+                                           int l, int t, int r, int b) {
+        if (mScrollY < 0) {
+            t -= mScrollY;
+        }
+        scrollBar.setBounds(l, t + getVisibleTitleHeightImpl(), r, b);
+        scrollBar.draw(canvas);
+    }
+
+    @Override
+    protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX,
+            boolean clampedY) {
+        // Special-case layer scrolling so that we do not trigger normal scroll
+        // updating.
+        if (mTouchMode == TOUCH_DRAG_LAYER_MODE) {
+            scrollLayerTo(scrollX, scrollY);
+            return;
+        }
+        mInOverScrollMode = false;
+        int maxX = computeMaxScrollX();
+        int maxY = computeMaxScrollY();
+        if (maxX == 0) {
+            // do not over scroll x if the page just fits the screen
+            scrollX = pinLocX(scrollX);
+        } else if (scrollX < 0 || scrollX > maxX) {
+            mInOverScrollMode = true;
+        }
+        if (scrollY < 0 || scrollY > maxY) {
+            mInOverScrollMode = true;
+        }
+
+        int oldX = mScrollX;
+        int oldY = mScrollY;
+
+        super.scrollTo(scrollX, scrollY);
+
+        if (mOverScrollGlow != null) {
+            mOverScrollGlow.pullGlow(mScrollX, mScrollY, oldX, oldY, maxX, maxY);
+        }
+    }
+
+    /**
+     * Get the url for the current page. This is not always the same as the url
+     * passed to WebViewClient.onPageStarted because although the load for
+     * that url has begun, the current page may not have changed.
+     * @return The url for the current page.
+     */
+    public String getUrl() {
+        checkThread();
+        WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem();
+        return h != null ? h.getUrl() : null;
+    }
+
+    /**
+     * Get the original url for the current page. This is not always the same
+     * as the url passed to WebViewClient.onPageStarted because although the
+     * load for that url has begun, the current page may not have changed.
+     * Also, there may have been redirects resulting in a different url to that
+     * originally requested.
+     * @return The url that was originally requested for the current page.
+     */
+    public String getOriginalUrl() {
+        checkThread();
+        WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem();
+        return h != null ? h.getOriginalUrl() : null;
+    }
+
+    /**
+     * Get the title for the current page. This is the title of the current page
+     * until WebViewClient.onReceivedTitle is called.
+     * @return The title for the current page.
+     */
+    public String getTitle() {
+        checkThread();
+        WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem();
+        return h != null ? h.getTitle() : null;
+    }
+
+    /**
+     * Get the favicon for the current page. This is the favicon of the current
+     * page until WebViewClient.onReceivedIcon is called.
+     * @return The favicon for the current page.
+     */
+    public Bitmap getFavicon() {
+        checkThread();
+        WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem();
+        return h != null ? h.getFavicon() : null;
+    }
+
+    /**
+     * Get the touch icon url for the apple-touch-icon <link> element, or
+     * a URL on this site's server pointing to the standard location of a
+     * touch icon.
+     * @hide
+     */
+    public String getTouchIconUrl() {
+        WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem();
+        return h != null ? h.getTouchIconUrl() : null;
+    }
+
+    /**
+     * Get the progress for the current page.
+     * @return The progress for the current page between 0 and 100.
+     */
+    public int getProgress() {
+        checkThread();
+        return mCallbackProxy.getProgress();
+    }
+
+    /**
+     * @return the height of the HTML content.
+     */
+    public int getContentHeight() {
+        checkThread();
+        return mContentHeight;
+    }
+
+    /**
+     * @return the width of the HTML content.
+     * @hide
+     */
+    public int getContentWidth() {
+        return mContentWidth;
+    }
+
+    /**
+     * @hide
+     */
+    public int getPageBackgroundColor() {
+        return nativeGetBackgroundColor();
+    }
+
+    /**
+     * Pause all layout, parsing, and JavaScript timers for all webviews. This
+     * is a global requests, not restricted to just this webview. This can be
+     * useful if the application has been paused.
+     */
+    public void pauseTimers() {
+        checkThread();
+        mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS);
+    }
+
+    /**
+     * Resume all layout, parsing, and JavaScript timers for all webviews.
+     * This will resume dispatching all timers.
+     */
+    public void resumeTimers() {
+        checkThread();
+        mWebViewCore.sendMessage(EventHub.RESUME_TIMERS);
+    }
+
+    /**
+     * Call this to pause any extra processing associated with this WebView and
+     * its associated DOM, plugins, JavaScript etc. For example, if the WebView
+     * is taken offscreen, this could be called to reduce unnecessary CPU or
+     * network traffic. When the WebView is again "active", call onResume().
+     *
+     * Note that this differs from pauseTimers(), which affects all WebViews.
+     */
+    public void onPause() {
+        checkThread();
+        if (!mIsPaused) {
+            mIsPaused = true;
+            mWebViewCore.sendMessage(EventHub.ON_PAUSE);
+            // We want to pause the current playing video when switching out
+            // from the current WebView/tab.
+            if (mHTML5VideoViewProxy != null) {
+                mHTML5VideoViewProxy.pauseAndDispatch();
+            }
+            if (mNativeClass != 0) {
+                nativeSetPauseDrawing(mNativeClass, true);
+            }
+
+            cancelSelectDialog();
+            WebCoreThreadWatchdog.pause();
+        }
+    }
+
+    @Override
+    protected void onWindowVisibilityChanged(int visibility) {
+        super.onWindowVisibilityChanged(visibility);
+        updateDrawingState();
+    }
+
+    void updateDrawingState() {
+        if (mNativeClass == 0 || mIsPaused) return;
+        if (getWindowVisibility() != VISIBLE) {
+            nativeSetPauseDrawing(mNativeClass, true);
+        } else if (getVisibility() != VISIBLE) {
+            nativeSetPauseDrawing(mNativeClass, true);
+        } else {
+            nativeSetPauseDrawing(mNativeClass, false);
+        }
+    }
+
+    /**
+     * Call this to resume a WebView after a previous call to onPause().
+     */
+    public void onResume() {
+        checkThread();
+        if (mIsPaused) {
+            mIsPaused = false;
+            mWebViewCore.sendMessage(EventHub.ON_RESUME);
+            if (mNativeClass != 0) {
+                nativeSetPauseDrawing(mNativeClass, false);
+            }
+        }
+        // Ensure that the watchdog has a currently valid Context to be able to display
+        // a prompt dialog. For example, if the Activity was finished whilst the WebCore
+        // thread was blocked and the Activity is started again, we may reuse the blocked
+        // thread, but we'll have a new Activity.
+        WebCoreThreadWatchdog.updateContext(mContext);
+        // We get a call to onResume for new WebViews (i.e. mIsPaused will be false). We need
+        // to ensure that the Watchdog thread is running for the new WebView, so call
+        // it outside the if block above.
+        WebCoreThreadWatchdog.resume();
+    }
+
+    /**
+     * Returns true if the view is paused, meaning onPause() was called. Calling
+     * onResume() sets the paused state back to false.
+     * @hide
+     */
+    public boolean isPaused() {
+        return mIsPaused;
+    }
+
+    /**
+     * Call this to inform the view that memory is low so that it can
+     * free any available memory.
+     */
+    public void freeMemory() {
+        checkThread();
+        mWebViewCore.sendMessage(EventHub.FREE_MEMORY);
+    }
+
+    /**
+     * Clear the resource cache. Note that the cache is per-application, so
+     * this will clear the cache for all WebViews used.
+     *
+     * @param includeDiskFiles If false, only the RAM cache is cleared.
+     */
+    public void clearCache(boolean includeDiskFiles) {
+        checkThread();
+        // Note: this really needs to be a static method as it clears cache for all
+        // WebView. But we need mWebViewCore to send message to WebCore thread, so
+        // we can't make this static.
+        mWebViewCore.sendMessage(EventHub.CLEAR_CACHE,
+                includeDiskFiles ? 1 : 0, 0);
+    }
+
+    /**
+     * Make sure that clearing the form data removes the adapter from the
+     * currently focused textfield if there is one.
+     */
+    public void clearFormData() {
+        checkThread();
+        if (inEditingMode()) {
+            mWebTextView.setAdapterCustom(null);
+        }
+    }
+
+    /**
+     * Tell the WebView to clear its internal back/forward list.
+     */
+    public void clearHistory() {
+        checkThread();
+        mCallbackProxy.getBackForwardList().setClearPending();
+        mWebViewCore.sendMessage(EventHub.CLEAR_HISTORY);
+    }
+
+    /**
+     * Clear the SSL preferences table stored in response to proceeding with SSL
+     * certificate errors.
+     */
+    public void clearSslPreferences() {
+        checkThread();
+        mWebViewCore.sendMessage(EventHub.CLEAR_SSL_PREF_TABLE);
+    }
+
+    /**
+     * Return the WebBackForwardList for this WebView. This contains the
+     * back/forward list for use in querying each item in the history stack.
+     * This is a copy of the private WebBackForwardList so it contains only a
+     * snapshot of the current state. Multiple calls to this method may return
+     * different objects. The object returned from this method will not be
+     * updated to reflect any new state.
+     */
+    public WebBackForwardList copyBackForwardList() {
+        checkThread();
+        return mCallbackProxy.getBackForwardList().clone();
+    }
+
+    /*
+     * Highlight and scroll to the next occurance of String in findAll.
+     * Wraps the page infinitely, and scrolls.  Must be called after
+     * calling findAll.
+     *
+     * @param forward Direction to search.
+     */
+    public void findNext(boolean forward) {
+        checkThread();
+        if (0 == mNativeClass) return; // client isn't initialized
+        mWebViewCore.sendMessage(EventHub.FIND_NEXT, forward ? 1 : 0);
+    }
+
+    /*
+     * Find all instances of find on the page and highlight them.
+     * @param find  String to find.
+     * @return int  The number of occurances of the String "find"
+     *              that were found.
+     */
+    public int findAll(String find) {
+        return findAllBody(find, false);
+    }
+
+    /**
+     * @hide
+     */
+    public void findAllAsync(String find) {
+        findAllBody(find, true);
+    }
+
+    private int findAllBody(String find, boolean isAsync) {
+        checkThread();
+        if (0 == mNativeClass) return 0; // client isn't initialized
+        mLastFind = find;
+        mWebViewCore.removeMessages(EventHub.FIND_ALL);
+        WebViewCore.FindAllRequest request = new
+            WebViewCore.FindAllRequest(find);
+        if (isAsync) {
+            mWebViewCore.sendMessage(EventHub.FIND_ALL, request);
+            return 0; // no need to wait for response
+        }
+        synchronized(request) {
+            try {
+                mWebViewCore.sendMessageAtFrontOfQueue(EventHub.FIND_ALL,
+                    request);
+                while (request.mMatchCount == -1) {
+                    request.wait();
+                }
+            }
+            catch (InterruptedException e) {
+                return 0;
+            }
+        }
+        return request.mMatchCount;
+    }
+
+    /**
+     * Start an ActionMode for finding text in this WebView.  Only works if this
+     *              WebView is attached to the view system.
+     * @param text If non-null, will be the initial text to search for.
+     *             Otherwise, the last String searched for in this WebView will
+     *             be used to start.
+     * @param showIme If true, show the IME, assuming the user will begin typing.
+     *             If false and text is non-null, perform a find all.
+     * @return boolean True if the find dialog is shown, false otherwise.
+     */
+    public boolean showFindDialog(String text, boolean showIme) {
+        checkThread();
+        FindActionModeCallback callback = new FindActionModeCallback(mContext);
+        if (getParent() == null || startActionMode(callback) == null) {
+            // Could not start the action mode, so end Find on page
+            return false;
+        }
+        mCachedOverlappingActionModeHeight = -1;
+        mFindCallback = callback;
+        setFindIsUp(true);
+        mFindCallback.setWebView(this);
+        if (showIme) {
+            mFindCallback.showSoftInput();
+        } else if (text != null) {
+            mFindCallback.setText(text);
+            mFindCallback.findAll();
+            return true;
+        }
+        if (text == null) {
+            text = mLastFind;
+        }
+        if (text != null) {
+            mFindCallback.setText(text);
+            mFindCallback.findAll();
+        }
+        return true;
+    }
+
+    /**
+     * Keep track of the find callback so that we can remove its titlebar if
+     * necessary.
+     */
+    private FindActionModeCallback mFindCallback;
+
+    /**
+     * Toggle whether the find dialog is showing, for both native and Java.
+     */
+    private void setFindIsUp(boolean isUp) {
+        mFindIsUp = isUp;
+        if (0 == mNativeClass) return; // client isn't initialized
+        nativeSetFindIsUp(isUp);
+    }
+
+    // Used to know whether the find dialog is open.  Affects whether
+    // or not we draw the highlights for matches.
+    private boolean mFindIsUp;
+
+    // Keep track of the last string sent, so we can search again when find is
+    // reopened.
+    private String mLastFind;
+
+    /**
+     * Return the first substring consisting of the address of a physical
+     * location. Currently, only addresses in the United States are detected,
+     * and consist of:
+     * - a house number
+     * - a street name
+     * - a street type (Road, Circle, etc), either spelled out or abbreviated
+     * - a city name
+     * - a state or territory, either spelled out or two-letter abbr.
+     * - an optional 5 digit or 9 digit zip code.
+     *
+     * All names must be correctly capitalized, and the zip code, if present,
+     * must be valid for the state. The street type must be a standard USPS
+     * spelling or abbreviation. The state or territory must also be spelled
+     * or abbreviated using USPS standards. The house number may not exceed
+     * five digits.
+     * @param addr The string to search for addresses.
+     *
+     * @return the address, or if no address is found, return null.
+     */
+    public static String findAddress(String addr) {
+        checkThread();
+        return findAddress(addr, false);
+    }
+
+    /**
+     * @hide
+     * Return the first substring consisting of the address of a physical
+     * location. Currently, only addresses in the United States are detected,
+     * and consist of:
+     * - a house number
+     * - a street name
+     * - a street type (Road, Circle, etc), either spelled out or abbreviated
+     * - a city name
+     * - a state or territory, either spelled out or two-letter abbr.
+     * - an optional 5 digit or 9 digit zip code.
+     *
+     * Names are optionally capitalized, and the zip code, if present,
+     * must be valid for the state. The street type must be a standard USPS
+     * spelling or abbreviation. The state or territory must also be spelled
+     * or abbreviated using USPS standards. The house number may not exceed
+     * five digits.
+     * @param addr The string to search for addresses.
+     * @param caseInsensitive addr Set to true to make search ignore case.
+     *
+     * @return the address, or if no address is found, return null.
+     */
+    public static String findAddress(String addr, boolean caseInsensitive) {
+        return WebViewCore.nativeFindAddress(addr, caseInsensitive);
+    }
+
+    /*
+     * Clear the highlighting surrounding text matches created by findAll.
+     */
+    public void clearMatches() {
+        checkThread();
+        if (mNativeClass == 0)
+            return;
+        mWebViewCore.removeMessages(EventHub.FIND_ALL);
+        mWebViewCore.sendMessage(EventHub.FIND_ALL, null);
+    }
+
+
+    /**
+     * Called when the find ActionMode ends.
+     */
+    void notifyFindDialogDismissed() {
+        mFindCallback = null;
+        mCachedOverlappingActionModeHeight = -1;
+        if (mWebViewCore == null) {
+            return;
+        }
+        clearMatches();
+        setFindIsUp(false);
+        // Now that the dialog has been removed, ensure that we scroll to a
+        // location that is not beyond the end of the page.
+        pinScrollTo(mScrollX, mScrollY, false, 0);
+        invalidate();
+    }
+
+    /**
+     * Query the document to see if it contains any image references. The
+     * message object will be dispatched with arg1 being set to 1 if images
+     * were found and 0 if the document does not reference any images.
+     * @param response The message that will be dispatched with the result.
+     */
+    public void documentHasImages(Message response) {
+        checkThread();
+        if (response == null) {
+            return;
+        }
+        mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response);
+    }
+
+    /**
+     * Request the scroller to abort any ongoing animation
+     *
+     * @hide
+     */
+    public void stopScroll() {
+        mScroller.forceFinished(true);
+        mLastVelocity = 0;
+    }
+
+    @Override
+    public void computeScroll() {
+        if (mScroller.computeScrollOffset()) {
+            int oldX = mScrollX;
+            int oldY = mScrollY;
+            int x = mScroller.getCurrX();
+            int y = mScroller.getCurrY();
+            invalidate();  // So we draw again
+
+            if (!mScroller.isFinished()) {
+                int rangeX = computeMaxScrollX();
+                int rangeY = computeMaxScrollY();
+                int overflingDistance = mOverflingDistance;
+
+                // Use the layer's scroll data if needed.
+                if (mTouchMode == TOUCH_DRAG_LAYER_MODE) {
+                    oldX = mScrollingLayerRect.left;
+                    oldY = mScrollingLayerRect.top;
+                    rangeX = mScrollingLayerRect.right;
+                    rangeY = mScrollingLayerRect.bottom;
+                    // No overscrolling for layers.
+                    overflingDistance = 0;
+                }
+
+                overScrollBy(x - oldX, y - oldY, oldX, oldY,
+                        rangeX, rangeY,
+                        overflingDistance, overflingDistance, false);
+
+                if (mOverScrollGlow != null) {
+                    mOverScrollGlow.absorbGlow(x, y, oldX, oldY, rangeX, rangeY);
+                }
+            } else {
+                if (mTouchMode != TOUCH_DRAG_LAYER_MODE) {
+                    mScrollX = x;
+                    mScrollY = y;
+                } else {
+                    // Update the layer position instead of WebView.
+                    scrollLayerTo(x, y);
+                }
+                abortAnimation();
+                nativeSetIsScrolling(false);
+                if (!mBlockWebkitViewMessages) {
+                    WebViewCore.resumePriority();
+                    if (!mSelectingText) {
+                        WebViewCore.resumeUpdatePicture(mWebViewCore);
+                    }
+                }
+                if (oldX != mScrollX || oldY != mScrollY) {
+                    sendOurVisibleRect();
+                }
+            }
+        } else {
+            super.computeScroll();
+        }
+    }
+
+    private void scrollLayerTo(int x, int y) {
+        if (x == mScrollingLayerRect.left && y == mScrollingLayerRect.top) {
+            return;
+        }
+        if (mSelectingText) {
+            int dx = mScrollingLayerRect.left - x;
+            int dy = mScrollingLayerRect.top - y;
+            if (mSelectCursorBaseLayerId == mCurrentScrollingLayerId) {
+                mSelectCursorBase.offset(dx, dy);
+            }
+            if (mSelectCursorExtentLayerId == mCurrentScrollingLayerId) {
+                mSelectCursorExtent.offset(dx, dy);
+            }
+        }
+        nativeScrollLayer(mCurrentScrollingLayerId, x, y);
+        mScrollingLayerRect.left = x;
+        mScrollingLayerRect.top = y;
+        mWebViewCore.sendMessage(WebViewCore.EventHub.SCROLL_LAYER, mCurrentScrollingLayerId,
+                mScrollingLayerRect);
+        onScrollChanged(mScrollX, mScrollY, mScrollX, mScrollY);
+        invalidate();
+    }
+
+    private static int computeDuration(int dx, int dy) {
+        int distance = Math.max(Math.abs(dx), Math.abs(dy));
+        int duration = distance * 1000 / STD_SPEED;
+        return Math.min(duration, MAX_DURATION);
+    }
+
+    // helper to pin the scrollBy parameters (already in view coordinates)
+    // returns true if the scroll was changed
+    private boolean pinScrollBy(int dx, int dy, boolean animate, int animationDuration) {
+        return pinScrollTo(mScrollX + dx, mScrollY + dy, animate, animationDuration);
+    }
+    // helper to pin the scrollTo parameters (already in view coordinates)
+    // returns true if the scroll was changed
+    private boolean pinScrollTo(int x, int y, boolean animate, int animationDuration) {
+        x = pinLocX(x);
+        y = pinLocY(y);
+        int dx = x - mScrollX;
+        int dy = y - mScrollY;
+
+        if ((dx | dy) == 0) {
+            return false;
+        }
+        abortAnimation();
+        if (animate) {
+            //        Log.d(LOGTAG, "startScroll: " + dx + " " + dy);
+            mScroller.startScroll(mScrollX, mScrollY, dx, dy,
+                    animationDuration > 0 ? animationDuration : computeDuration(dx, dy));
+            awakenScrollBars(mScroller.getDuration());
+            invalidate();
+        } else {
+            scrollTo(x, y);
+        }
+        return true;
+    }
+
+    // Scale from content to view coordinates, and pin.
+    // Also called by jni webview.cpp
+    private boolean setContentScrollBy(int cx, int cy, boolean animate) {
+        if (mDrawHistory) {
+            // disallow WebView to change the scroll position as History Picture
+            // is used in the view system.
+            // TODO: as we switchOutDrawHistory when trackball or navigation
+            // keys are hit, this should be safe. Right?
+            return false;
+        }
+        cx = contentToViewDimension(cx);
+        cy = contentToViewDimension(cy);
+        if (mHeightCanMeasure) {
+            // move our visible rect according to scroll request
+            if (cy != 0) {
+                Rect tempRect = new Rect();
+                calcOurVisibleRect(tempRect);
+                tempRect.offset(cx, cy);
+                requestRectangleOnScreen(tempRect);
+            }
+            // FIXME: We scroll horizontally no matter what because currently
+            // ScrollView and ListView will not scroll horizontally.
+            // FIXME: Why do we only scroll horizontally if there is no
+            // vertical scroll?
+//                Log.d(LOGTAG, "setContentScrollBy cy=" + cy);
+            return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0);
+        } else {
+            return pinScrollBy(cx, cy, animate, 0);
+        }
+    }
+
+    /**
+     * Called by CallbackProxy when the page starts loading.
+     * @param url The URL of the page which has started loading.
+     */
+    /* package */ void onPageStarted(String url) {
+        // every time we start a new page, we want to reset the
+        // WebView certificate:  if the new site is secure, we
+        // will reload it and get a new certificate set;
+        // if the new site is not secure, the certificate must be
+        // null, and that will be the case
+        setCertificate(null);
+
+        // reset the flag since we set to true in if need after
+        // loading is see onPageFinished(Url)
+        mAccessibilityScriptInjected = false;
+    }
+
+    /**
+     * Called by CallbackProxy when the page finishes loading.
+     * @param url The URL of the page which has finished loading.
+     */
+    /* package */ void onPageFinished(String url) {
+        if (mPageThatNeedsToSlideTitleBarOffScreen != null) {
+            // If the user is now on a different page, or has scrolled the page
+            // past the point where the title bar is offscreen, ignore the
+            // scroll request.
+            if (mPageThatNeedsToSlideTitleBarOffScreen.equals(url)
+                    && mScrollX == 0 && mScrollY == 0) {
+                pinScrollTo(0, mYDistanceToSlideTitleOffScreen, true,
+                        SLIDE_TITLE_DURATION);
+            }
+            mPageThatNeedsToSlideTitleBarOffScreen = null;
+        }
+        mZoomManager.onPageFinished(url);
+        injectAccessibilityForUrl(url);
+    }
+
+    /**
+     * This method injects accessibility in the loaded document if accessibility
+     * is enabled. If JavaScript is enabled we try to inject a URL specific script.
+     * If no URL specific script is found or JavaScript is disabled we fallback to
+     * the default {@link AccessibilityInjector} implementation.
+     * </p>
+     * If the URL has the "axs" paramter set to 1 it has already done the
+     * script injection so we do nothing. If the parameter is set to 0
+     * the URL opts out accessibility script injection so we fall back to
+     * the default {@link AccessibilityInjector}.
+     * </p>
+     * Note: If the user has not opted-in the accessibility script injection no scripts
+     * are injected rather the default {@link AccessibilityInjector} implementation
+     * is used.
+     *
+     * @param url The URL loaded by this {@link WebView}.
+     */
+    private void injectAccessibilityForUrl(String url) {
+        if (mWebViewCore == null) {
+            return;
+        }
+        AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(mContext);
+
+        if (!accessibilityManager.isEnabled()) {
+            // it is possible that accessibility was turned off between reloads
+            ensureAccessibilityScriptInjectorInstance(false);
+            return;
+        }
+
+        if (!getSettings().getJavaScriptEnabled()) {
+            // no JS so we fallback to the basic buil-in support
+            ensureAccessibilityScriptInjectorInstance(true);
+            return;
+        }
+
+        // check the URL "axs" parameter to choose appropriate action
+        int axsParameterValue = getAxsUrlParameterValue(url);
+        if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED) {
+            boolean onDeviceScriptInjectionEnabled = (Settings.Secure.getInt(mContext
+                    .getContentResolver(), Settings.Secure.ACCESSIBILITY_SCRIPT_INJECTION, 0) == 1);
+            if (onDeviceScriptInjectionEnabled) {
+                ensureAccessibilityScriptInjectorInstance(false);
+                // neither script injected nor script injection opted out => we inject
+                loadUrl(getScreenReaderInjectingJs());
+                // TODO: Set this flag after successfull script injection. Maybe upon injection
+                // the chooser should update the meta tag and we check it to declare success
+                mAccessibilityScriptInjected = true;
+            } else {
+                // injection disabled so we fallback to the basic built-in support
+                ensureAccessibilityScriptInjectorInstance(true);
+            }
+        } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT) {
+            // injection opted out so we fallback to the basic buil-in support
+            ensureAccessibilityScriptInjectorInstance(true);
+        } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED) {
+            ensureAccessibilityScriptInjectorInstance(false);
+            // the URL provides accessibility but we still need to add our generic script
+            loadUrl(getScreenReaderInjectingJs());
+        } else {
+            Log.e(LOGTAG, "Unknown URL value for the \"axs\" URL parameter: " + axsParameterValue);
+        }
+    }
+
+    /**
+     * Ensures the instance of the {@link AccessibilityInjector} to be present ot not.
+     *
+     * @param present True to ensure an insance, false to ensure no instance.
+     */
+    private void ensureAccessibilityScriptInjectorInstance(boolean present) {
+        if (present) {
+            if (mAccessibilityInjector == null) {
+                mAccessibilityInjector = new AccessibilityInjector(this);
+            }
+        } else {
+            mAccessibilityInjector = null;
+        }
+    }
+
+    /**
+     * Gets JavaScript that injects a screen-reader.
+     *
+     * @return The JavaScript snippet.
+     */
+    private String getScreenReaderInjectingJs() {
+        String screenReaderUrl = Settings.Secure.getString(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_SCREEN_READER_URL);
+        return String.format(ACCESSIBILITY_SCREEN_READER_JAVASCRIPT_TEMPLATE, screenReaderUrl);
+    }
+
+    /**
+     * Gets the "axs" URL parameter value.
+     *
+     * @param url A url to fetch the paramter from.
+     * @return The parameter value if such, -1 otherwise.
+     */
+    private int getAxsUrlParameterValue(String url) {
+        if (mMatchAxsUrlParameterPattern == null) {
+            mMatchAxsUrlParameterPattern = Pattern.compile(PATTERN_MATCH_AXS_URL_PARAMETER);
+        }
+        Matcher matcher = mMatchAxsUrlParameterPattern.matcher(url);
+        if (matcher.find()) {
+            String keyValuePair = url.substring(matcher.start(), matcher.end());
+            return Integer.parseInt(keyValuePair.split("=")[1]);
+        }
+        return -1;
+    }
+
+    /**
+     * The URL of a page that sent a message to scroll the title bar off screen.
+     *
+     * Many mobile sites tell the page to scroll to (0,1) in order to scroll the
+     * title bar off the screen.  Sometimes, the scroll position is set before
+     * the page finishes loading.  Rather than scrolling while the page is still
+     * loading, keep track of the URL and new scroll position so we can perform
+     * the scroll once the page finishes loading.
+     */
+    private String mPageThatNeedsToSlideTitleBarOffScreen;
+
+    /**
+     * The destination Y scroll position to be used when the page finishes
+     * loading.  See mPageThatNeedsToSlideTitleBarOffScreen.
+     */
+    private int mYDistanceToSlideTitleOffScreen;
+
+    // scale from content to view coordinates, and pin
+    // return true if pin caused the final x/y different than the request cx/cy,
+    // and a future scroll may reach the request cx/cy after our size has
+    // changed
+    // return false if the view scroll to the exact position as it is requested,
+    // where negative numbers are taken to mean 0
+    private boolean setContentScrollTo(int cx, int cy) {
+        if (mDrawHistory) {
+            // disallow WebView to change the scroll position as History Picture
+            // is used in the view system.
+            // One known case where this is called is that WebCore tries to
+            // restore the scroll position. As history Picture already uses the
+            // saved scroll position, it is ok to skip this.
+            return false;
+        }
+        int vx;
+        int vy;
+        if ((cx | cy) == 0) {
+            // If the page is being scrolled to (0,0), do not add in the title
+            // bar's height, and simply scroll to (0,0). (The only other work
+            // in contentToView_ is to multiply, so this would not change 0.)
+            vx = 0;
+            vy = 0;
+        } else {
+            vx = contentToViewX(cx);
+            vy = contentToViewY(cy);
+        }
+//        Log.d(LOGTAG, "content scrollTo [" + cx + " " + cy + "] view=[" +
+//                      vx + " " + vy + "]");
+        // Some mobile sites attempt to scroll the title bar off the page by
+        // scrolling to (0,1).  If we are at the top left corner of the
+        // page, assume this is an attempt to scroll off the title bar, and
+        // animate the title bar off screen slowly enough that the user can see
+        // it.
+        if (cx == 0 && cy == 1 && mScrollX == 0 && mScrollY == 0
+                && mTitleBar != null) {
+            // FIXME: 100 should be defined somewhere as our max progress.
+            if (getProgress() < 100) {
+                // Wait to scroll the title bar off screen until the page has
+                // finished loading.  Keep track of the URL and the destination
+                // Y position
+                mPageThatNeedsToSlideTitleBarOffScreen = getUrl();
+                mYDistanceToSlideTitleOffScreen = vy;
+            } else {
+                pinScrollTo(vx, vy, true, SLIDE_TITLE_DURATION);
+            }
+            // Since we are animating, we have not yet reached the desired
+            // scroll position.  Do not return true to request another attempt
+            return false;
+        }
+        pinScrollTo(vx, vy, false, 0);
+        // If the request was to scroll to a negative coordinate, treat it as if
+        // it was a request to scroll to 0
+        if ((mScrollX != vx && cx >= 0) || (mScrollY != vy && cy >= 0)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    // scale from content to view coordinates, and pin
+    private void spawnContentScrollTo(int cx, int cy) {
+        if (mDrawHistory) {
+            // disallow WebView to change the scroll position as History Picture
+            // is used in the view system.
+            return;
+        }
+        int vx = contentToViewX(cx);
+        int vy = contentToViewY(cy);
+        pinScrollTo(vx, vy, true, 0);
+    }
+
+    /**
+     * These are from webkit, and are in content coordinate system (unzoomed)
+     */
+    private void contentSizeChanged(boolean updateLayout) {
+        // suppress 0,0 since we usually see real dimensions soon after
+        // this avoids drawing the prev content in a funny place. If we find a
+        // way to consolidate these notifications, this check may become
+        // obsolete
+        if ((mContentWidth | mContentHeight) == 0) {
+            return;
+        }
+
+        if (mHeightCanMeasure) {
+            if (getMeasuredHeight() != contentToViewDimension(mContentHeight)
+                    || updateLayout) {
+                requestLayout();
+            }
+        } else if (mWidthCanMeasure) {
+            if (getMeasuredWidth() != contentToViewDimension(mContentWidth)
+                    || updateLayout) {
+                requestLayout();
+            }
+        } else {
+            // If we don't request a layout, try to send our view size to the
+            // native side to ensure that WebCore has the correct dimensions.
+            sendViewSizeZoom(false);
+        }
+    }
+
+    /**
+     * Set the WebViewClient that will receive various notifications and
+     * requests. This will replace the current handler.
+     * @param client An implementation of WebViewClient.
+     */
+    public void setWebViewClient(WebViewClient client) {
+        checkThread();
+        mCallbackProxy.setWebViewClient(client);
+    }
+
+    /**
+     * Gets the WebViewClient
+     * @return the current WebViewClient instance.
+     *
+     * @hide This is an implementation detail.
+     */
+    public WebViewClient getWebViewClient() {
+        return mCallbackProxy.getWebViewClient();
+    }
+
+    /**
+     * Register the interface to be used when content can not be handled by
+     * the rendering engine, and should be downloaded instead. This will replace
+     * the current handler.
+     * @param listener An implementation of DownloadListener.
+     */
+    public void setDownloadListener(DownloadListener listener) {
+        checkThread();
+        mCallbackProxy.setDownloadListener(listener);
+    }
+
+    /**
+     * Set the chrome handler. This is an implementation of WebChromeClient for
+     * use in handling JavaScript dialogs, favicons, titles, and the progress.
+     * This will replace the current handler.
+     * @param client An implementation of WebChromeClient.
+     */
+    public void setWebChromeClient(WebChromeClient client) {
+        checkThread();
+        mCallbackProxy.setWebChromeClient(client);
+    }
+
+    /**
+     * Gets the chrome handler.
+     * @return the current WebChromeClient instance.
+     *
+     * @hide This is an implementation detail.
+     */
+    public WebChromeClient getWebChromeClient() {
+        return mCallbackProxy.getWebChromeClient();
+    }
+
+    /**
+     * Set the back/forward list client. This is an implementation of
+     * WebBackForwardListClient for handling new items and changes in the
+     * history index.
+     * @param client An implementation of WebBackForwardListClient.
+     * {@hide}
+     */
+    public void setWebBackForwardListClient(WebBackForwardListClient client) {
+        mCallbackProxy.setWebBackForwardListClient(client);
+    }
+
+    /**
+     * Gets the WebBackForwardListClient.
+     * {@hide}
+     */
+    public WebBackForwardListClient getWebBackForwardListClient() {
+        return mCallbackProxy.getWebBackForwardListClient();
+    }
+
+    /**
+     * Set the Picture listener. This is an interface used to receive
+     * notifications of a new Picture.
+     * @param listener An implementation of WebView.PictureListener.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public void setPictureListener(PictureListener listener) {
+        checkThread();
+        mPictureListener = listener;
+    }
+
+    /**
+     * {@hide}
+     */
+    /* FIXME: Debug only! Remove for SDK! */
+    public void externalRepresentation(Message callback) {
+        mWebViewCore.sendMessage(EventHub.REQUEST_EXT_REPRESENTATION, callback);
+    }
+
+    /**
+     * {@hide}
+     */
+    /* FIXME: Debug only! Remove for SDK! */
+    public void documentAsText(Message callback) {
+        mWebViewCore.sendMessage(EventHub.REQUEST_DOC_AS_TEXT, callback);
+    }
+
+    /**
+     * This method injects the supplied Java object into the WebView. The
+     * object is injected into the JavaScript context of the main frame, using
+     * the supplied name. This allows the Java object to be accessed from
+     * JavaScript. Note that that injected objects will not appear in
+     * JavaScript until the page is next (re)loaded. For example:
+     * <pre> webView.addJavascriptInterface(new Object(), "injectedObject");
+     * webView.loadData("<!DOCTYPE html><title></title>", "text/html", null);
+     * webView.loadUrl("javascript:alert(injectedObject.toString())");</pre>
+     * <p><strong>IMPORTANT:</strong>
+     * <ul>
+     * <li> addJavascriptInterface() can be used to allow JavaScript to control
+     * the host application. This is a powerful feature, but also presents a
+     * security risk. Use of this method in a WebView containing untrusted
+     * content could allow an attacker to manipulate the host application in
+     * unintended ways, executing Java code with the permissions of the host
+     * application. Use extreme care when using this method in a WebView which
+     * could contain untrusted content.
+     * <li> JavaScript interacts with Java object on a private, background
+     * thread of the WebView. Care is therefore required to maintain thread
+     * safety.</li>
+     * </ul></p>
+     * @param object The Java object to inject into the WebView's JavaScript
+     *               context. Null values are ignored.
+     * @param name The name used to expose the instance in JavaScript.
+     */
+    public void addJavascriptInterface(Object object, String name) {
+        checkThread();
+        if (object == null) {
+            return;
+        }
+        WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData();
+        arg.mObject = object;
+        arg.mInterfaceName = name;
+        mWebViewCore.sendMessage(EventHub.ADD_JS_INTERFACE, arg);
+    }
+
+    /**
+     * Removes a previously added JavaScript interface with the given name.
+     * @param interfaceName The name of the interface to remove.
+     */
+    public void removeJavascriptInterface(String interfaceName) {
+        checkThread();
+        if (mWebViewCore != null) {
+            WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData();
+            arg.mInterfaceName = interfaceName;
+            mWebViewCore.sendMessage(EventHub.REMOVE_JS_INTERFACE, arg);
+        }
+    }
+
+    /**
+     * Return the WebSettings object used to control the settings for this
+     * WebView.
+     * @return A WebSettings object that can be used to control this WebView's
+     *         settings.
+     */
+    public WebSettings getSettings() {
+        checkThread();
+        return (mWebViewCore != null) ? mWebViewCore.getSettings() : null;
+    }
+
+   /**
+    * Return the list of currently loaded plugins.
+    * @return The list of currently loaded plugins.
+    *
+    * @hide
+    * @deprecated This was used for Gears, which has been deprecated.
+    */
+    @Deprecated
+    public static synchronized PluginList getPluginList() {
+        checkThread();
+        return new PluginList();
+    }
+
+   /**
+    * @hide
+    * @deprecated This was used for Gears, which has been deprecated.
+    */
+    @Deprecated
+    public void refreshPlugins(boolean reloadOpenPages) {
+        checkThread();
+    }
+
+    //-------------------------------------------------------------------------
+    // Override View methods
+    //-------------------------------------------------------------------------
+
+    @Override
+    protected void finalize() throws Throwable {
+        try {
+            if (mNativeClass != 0) {
+                mPrivateHandler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        destroy();
+                    }
+                });
+            }
+        } finally {
+            super.finalize();
+        }
+    }
+
+    @Override
+    protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
+        if (child == mTitleBar) {
+            // When drawing the title bar, move it horizontally to always show
+            // at the top of the WebView.
+            mTitleBar.offsetLeftAndRight(mScrollX - mTitleBar.getLeft());
+            int newTop = 0;
+            if (mTitleGravity == Gravity.NO_GRAVITY) {
+                newTop = Math.min(0, mScrollY);
+            } else if (mTitleGravity == Gravity.TOP) {
+                newTop = mScrollY;
+            }
+            mTitleBar.setBottom(newTop + mTitleBar.getHeight());
+            mTitleBar.setTop(newTop);
+        }
+        return super.drawChild(canvas, child, drawingTime);
+    }
+
+    private void drawContent(Canvas canvas, boolean drawRings) {
+        drawCoreAndCursorRing(canvas, mBackgroundColor,
+                mDrawCursorRing && drawRings);
+    }
+
+    /**
+     * Draw the background when beyond bounds
+     * @param canvas Canvas to draw into
+     */
+    private void drawOverScrollBackground(Canvas canvas) {
+        if (mOverScrollBackground == null) {
+            mOverScrollBackground = new Paint();
+            Bitmap bm = BitmapFactory.decodeResource(
+                    mContext.getResources(),
+                    com.android.internal.R.drawable.status_bar_background);
+            mOverScrollBackground.setShader(new BitmapShader(bm,
+                    Shader.TileMode.REPEAT, Shader.TileMode.REPEAT));
+            mOverScrollBorder = new Paint();
+            mOverScrollBorder.setStyle(Paint.Style.STROKE);
+            mOverScrollBorder.setStrokeWidth(0);
+            mOverScrollBorder.setColor(0xffbbbbbb);
+        }
+
+        int top = 0;
+        int right = computeRealHorizontalScrollRange();
+        int bottom = top + computeRealVerticalScrollRange();
+        // first draw the background and anchor to the top of the view
+        canvas.save();
+        canvas.translate(mScrollX, mScrollY);
+        canvas.clipRect(-mScrollX, top - mScrollY, right - mScrollX, bottom
+                - mScrollY, Region.Op.DIFFERENCE);
+        canvas.drawPaint(mOverScrollBackground);
+        canvas.restore();
+        // then draw the border
+        canvas.drawRect(-1, top - 1, right, bottom, mOverScrollBorder);
+        // next clip the region for the content
+        canvas.clipRect(0, top, right, bottom);
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        if (inFullScreenMode()) {
+            return; // no need to draw anything if we aren't visible.
+        }
+        // if mNativeClass is 0, the WebView is either destroyed or not
+        // initialized. In either case, just draw the background color and return
+        if (mNativeClass == 0) {
+            canvas.drawColor(mBackgroundColor);
+            return;
+        }
+
+        // if both mContentWidth and mContentHeight are 0, it means there is no
+        // valid Picture passed to WebView yet. This can happen when WebView
+        // just starts. Draw the background and return.
+        if ((mContentWidth | mContentHeight) == 0 && mHistoryPicture == null) {
+            canvas.drawColor(mBackgroundColor);
+            return;
+        }
+
+        if (canvas.isHardwareAccelerated()) {
+            mZoomManager.setHardwareAccelerated();
+        } else {
+            mWebViewCore.resumeWebKitDraw();
+        }
+
+        int saveCount = canvas.save();
+        if (mInOverScrollMode && !getSettings()
+                .getUseWebViewBackgroundForOverscrollBackground()) {
+            drawOverScrollBackground(canvas);
+        }
+        if (mTitleBar != null) {
+            canvas.translate(0, getTitleHeight());
+        }
+        boolean drawNativeRings = !sDisableNavcache;
+        drawContent(canvas, drawNativeRings);
+        canvas.restoreToCount(saveCount);
+
+        if (AUTO_REDRAW_HACK && mAutoRedraw) {
+            invalidate();
+        }
+        mWebViewCore.signalRepaintDone();
+
+        if (mOverScrollGlow != null && mOverScrollGlow.drawEdgeGlows(canvas)) {
+            invalidate();
+        }
+
+        if (mFocusTransition != null) {
+            mFocusTransition.draw(canvas);
+        } else if (shouldDrawHighlightRect()) {
+            RegionIterator iter = new RegionIterator(mTouchHighlightRegion);
+            Rect r = new Rect();
+            while (iter.next(r)) {
+                canvas.drawRect(r, mTouchHightlightPaint);
+            }
+        }
+        if (DEBUG_TOUCH_HIGHLIGHT) {
+            if (getSettings().getNavDump()) {
+                if ((mTouchHighlightX | mTouchHighlightY) != 0) {
+                    if (mTouchCrossHairColor == null) {
+                        mTouchCrossHairColor = new Paint();
+                        mTouchCrossHairColor.setColor(Color.RED);
+                    }
+                    canvas.drawLine(mTouchHighlightX - mNavSlop,
+                            mTouchHighlightY - mNavSlop, mTouchHighlightX
+                                    + mNavSlop + 1, mTouchHighlightY + mNavSlop
+                                    + 1, mTouchCrossHairColor);
+                    canvas.drawLine(mTouchHighlightX + mNavSlop + 1,
+                            mTouchHighlightY - mNavSlop, mTouchHighlightX
+                                    - mNavSlop,
+                            mTouchHighlightY + mNavSlop + 1,
+                            mTouchCrossHairColor);
+                }
+            }
+        }
+    }
+
+    private void removeTouchHighlight() {
+        mWebViewCore.removeMessages(EventHub.HIT_TEST);
+        mPrivateHandler.removeMessages(HIT_TEST_RESULT);
+        setTouchHighlightRects(null);
+    }
+
+    @Override
+    public void setLayoutParams(ViewGroup.LayoutParams params) {
+        if (params.height == LayoutParams.WRAP_CONTENT) {
+            mWrapContent = true;
+        }
+        super.setLayoutParams(params);
+    }
+
+    @Override
+    public boolean performLongClick() {
+        // performLongClick() is the result of a delayed message. If we switch
+        // to windows overview, the WebView will be temporarily removed from the
+        // view system. In that case, do nothing.
+        if (getParent() == null) return false;
+
+        // A multi-finger gesture can look like a long press; make sure we don't take
+        // long press actions if we're scaling.
+        final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector();
+        if (detector != null && detector.isInProgress()) {
+            return false;
+        }
+
+        if (mNativeClass != 0 && nativeCursorIsTextInput()) {
+            // Send the click so that the textfield is in focus
+            centerKeyPressOnTextField();
+            rebuildWebTextView();
+        } else {
+            clearTextEntry();
+        }
+        if (inEditingMode()) {
+            // Since we just called rebuildWebTextView, the layout is not set
+            // properly.  Update it so it can correctly find the word to select.
+            mWebTextView.ensureLayout();
+            // Provide a touch down event to WebTextView, which will allow it
+            // to store the location to use in performLongClick.
+            AbsoluteLayout.LayoutParams params
+                    = (AbsoluteLayout.LayoutParams) mWebTextView.getLayoutParams();
+            MotionEvent fake = MotionEvent.obtain(mLastTouchTime,
+                    mLastTouchTime, MotionEvent.ACTION_DOWN,
+                    mLastTouchX - params.x + mScrollX,
+                    mLastTouchY - params.y + mScrollY, 0);
+            mWebTextView.dispatchTouchEvent(fake);
+            return mWebTextView.performLongClick();
+        }
+        if (mSelectingText) return false; // long click does nothing on selection
+        /* if long click brings up a context menu, the super function
+         * returns true and we're done. Otherwise, nothing happened when
+         * the user clicked. */
+        if (super.performLongClick()) {
+            return true;
+        }
+        /* In the case where the application hasn't already handled the long
+         * click action, look for a word under the  click. If one is found,
+         * animate the text selection into view.
+         * FIXME: no animation code yet */
+        final boolean isSelecting = selectText();
+        if (isSelecting) {
+            performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
+        } else if (focusCandidateIsEditableText()) {
+            mSelectCallback = new SelectActionModeCallback();
+            mSelectCallback.setWebView(this);
+            mSelectCallback.setTextSelected(false);
+            startActionMode(mSelectCallback);
+        }
+        return isSelecting;
+    }
+
+    /**
+     * Select the word at the last click point.
+     *
+     * @hide This is an implementation detail.
+     */
+    public boolean selectText() {
+        int x = viewToContentX(mLastTouchX + mScrollX);
+        int y = viewToContentY(mLastTouchY + mScrollY);
+        return selectText(x, y);
+    }
+
+    /**
+     * Select the word at the indicated content coordinates.
+     */
+    boolean selectText(int x, int y) {
+        mWebViewCore.sendMessage(EventHub.SELECT_WORD_AT, x, y);
+        return true;
+    }
+
+    private int mOrientation = Configuration.ORIENTATION_UNDEFINED;
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        mCachedOverlappingActionModeHeight = -1;
+        if (mSelectingText && mOrientation != newConfig.orientation) {
+            selectionDone();
+        }
+        mOrientation = newConfig.orientation;
+        if (mWebViewCore != null && !mBlockWebkitViewMessages) {
+            mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT);
+        }
+    }
+
+    /**
+     * Keep track of the Callback so we can end its ActionMode or remove its
+     * titlebar.
+     */
+    private SelectActionModeCallback mSelectCallback;
+
+    // These values are possible options for didUpdateWebTextViewDimensions.
+    private static final int FULLY_ON_SCREEN = 0;
+    private static final int INTERSECTS_SCREEN = 1;
+    private static final int ANYWHERE = 2;
+
+    /**
+     * Check to see if the focused textfield/textarea is still on screen.  If it
+     * is, update the the dimensions and location of WebTextView.  Otherwise,
+     * remove the WebTextView.  Should be called when the zoom level changes.
+     * @param intersection How to determine whether the textfield/textarea is
+     *        still on screen.
+     * @return boolean True if the textfield/textarea is still on screen and the
+     *         dimensions/location of WebTextView have been updated.
+     */
+    private boolean didUpdateWebTextViewDimensions(int intersection) {
+        Rect contentBounds = nativeFocusCandidateNodeBounds();
+        Rect vBox = contentToViewRect(contentBounds);
+        Rect visibleRect = new Rect();
+        calcOurVisibleRect(visibleRect);
+        offsetByLayerScrollPosition(vBox);
+        // If the textfield is on screen, place the WebTextView in
+        // its new place, accounting for our new scroll/zoom values,
+        // and adjust its textsize.
+        boolean onScreen;
+        switch (intersection) {
+            case FULLY_ON_SCREEN:
+                onScreen = visibleRect.contains(vBox);
+                break;
+            case INTERSECTS_SCREEN:
+                onScreen = Rect.intersects(visibleRect, vBox);
+                break;
+            case ANYWHERE:
+                onScreen = true;
+                break;
+            default:
+                throw new AssertionError(
+                        "invalid parameter passed to didUpdateWebTextViewDimensions");
+        }
+        if (onScreen) {
+            mWebTextView.setRect(vBox.left, vBox.top, vBox.width(),
+                    vBox.height());
+            mWebTextView.updateTextSize();
+            updateWebTextViewPadding();
+            return true;
+        } else {
+            // The textfield is now off screen.  The user probably
+            // was not zooming to see the textfield better.  Remove
+            // the WebTextView.  If the user types a key, and the
+            // textfield is still in focus, we will reconstruct
+            // the WebTextView and scroll it back on screen.
+            mWebTextView.remove();
+            return false;
+        }
+    }
+
+    private void offsetByLayerScrollPosition(Rect box) {
+        if ((mCurrentScrollingLayerId != 0)
+                && (mCurrentScrollingLayerId == nativeFocusCandidateLayerId())) {
+            box.offsetTo(box.left - mScrollingLayerRect.left,
+                    box.top - mScrollingLayerRect.top);
+        }
+    }
+
+    void setBaseLayer(int layer, Region invalRegion, boolean showVisualIndicator,
+            boolean isPictureAfterFirstLayout) {
+        if (mNativeClass == 0)
+            return;
+        boolean queueFull;
+        queueFull = nativeSetBaseLayer(mNativeClass, layer, invalRegion,
+                                       showVisualIndicator, isPictureAfterFirstLayout);
+
+        if (layer == 0 || isPictureAfterFirstLayout) {
+            mWebViewCore.resumeWebKitDraw();
+        } else if (queueFull) {
+            // temporarily disable webkit draw throttling
+            // TODO: re-enable
+            // mWebViewCore.pauseWebKitDraw();
+        }
+
+        if (mHTML5VideoViewProxy != null) {
+            mHTML5VideoViewProxy.setBaseLayer(layer);
+        }
+    }
+
+    int getBaseLayer() {
+        if (mNativeClass == 0) {
+            return 0;
+        }
+        return nativeGetBaseLayer();
+    }
+
+    private void onZoomAnimationStart() {
+        // If it is in password mode, turn it off so it does not draw misplaced.
+        if (inEditingMode()) {
+            mWebTextView.setVisibility(INVISIBLE);
+        }
+    }
+
+    private void onZoomAnimationEnd() {
+        // adjust the edit text view if needed
+        if (inEditingMode()
+                && didUpdateWebTextViewDimensions(FULLY_ON_SCREEN)) {
+            // If it is a password field, start drawing the WebTextView once
+            // again.
+            mWebTextView.setVisibility(VISIBLE);
+        }
+    }
+
+    void onFixedLengthZoomAnimationStart() {
+        WebViewCore.pauseUpdatePicture(getWebViewCore());
+        onZoomAnimationStart();
+    }
+
+    void onFixedLengthZoomAnimationEnd() {
+        if (!mBlockWebkitViewMessages && !mSelectingText) {
+            WebViewCore.resumeUpdatePicture(mWebViewCore);
+        }
+        onZoomAnimationEnd();
+    }
+
+    private static final int ZOOM_BITS = Paint.FILTER_BITMAP_FLAG |
+                                         Paint.DITHER_FLAG |
+                                         Paint.SUBPIXEL_TEXT_FLAG;
+    private static final int SCROLL_BITS = Paint.FILTER_BITMAP_FLAG |
+                                           Paint.DITHER_FLAG;
+
+    private final DrawFilter mZoomFilter =
+            new PaintFlagsDrawFilter(ZOOM_BITS, Paint.LINEAR_TEXT_FLAG);
+    // If we need to trade better quality for speed, set mScrollFilter to null
+    private final DrawFilter mScrollFilter =
+            new PaintFlagsDrawFilter(SCROLL_BITS, 0);
+
+    private void drawCoreAndCursorRing(Canvas canvas, int color,
+        boolean drawCursorRing) {
+        if (mDrawHistory) {
+            canvas.scale(mZoomManager.getScale(), mZoomManager.getScale());
+            canvas.drawPicture(mHistoryPicture);
+            return;
+        }
+        if (mNativeClass == 0) return;
+
+        boolean animateZoom = mZoomManager.isFixedLengthAnimationInProgress();
+        boolean animateScroll = ((!mScroller.isFinished()
+                || mVelocityTracker != null)
+                && (mTouchMode != TOUCH_DRAG_MODE ||
+                mHeldMotionless != MOTIONLESS_TRUE))
+                || mDeferTouchMode == TOUCH_DRAG_MODE;
+        if (mTouchMode == TOUCH_DRAG_MODE) {
+            if (mHeldMotionless == MOTIONLESS_PENDING) {
+                mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS);
+                mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS);
+                mHeldMotionless = MOTIONLESS_FALSE;
+            }
+            if (mHeldMotionless == MOTIONLESS_FALSE) {
+                mPrivateHandler.sendMessageDelayed(mPrivateHandler
+                        .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME);
+                mPrivateHandler.sendMessageDelayed(mPrivateHandler
+                        .obtainMessage(AWAKEN_SCROLL_BARS),
+                            ViewConfiguration.getScrollDefaultDelay());
+                mHeldMotionless = MOTIONLESS_PENDING;
+            }
+        }
+        int saveCount = canvas.save();
+        if (animateZoom) {
+            mZoomManager.animateZoom(canvas);
+        } else if (!canvas.isHardwareAccelerated()) {
+            canvas.scale(mZoomManager.getScale(), mZoomManager.getScale());
+        }
+
+        boolean UIAnimationsRunning = false;
+        // Currently for each draw we compute the animation values;
+        // We may in the future decide to do that independently.
+        if (mNativeClass != 0 && !canvas.isHardwareAccelerated()
+                && nativeEvaluateLayersAnimations(mNativeClass)) {
+            UIAnimationsRunning = true;
+            // If we have unfinished (or unstarted) animations,
+            // we ask for a repaint. We only need to do this in software
+            // rendering (with hardware rendering we already have a different
+            // method of requesting a repaint)
+            mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED);
+            invalidate();
+        }
+
+        // decide which adornments to draw
+        int extras = DRAW_EXTRAS_NONE;
+        if (!mFindIsUp) {
+            if (mSelectingText) {
+                extras = DRAW_EXTRAS_SELECTION;
+            } else if (drawCursorRing) {
+                extras = DRAW_EXTRAS_CURSOR_RING;
+            }
+        }
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "mFindIsUp=" + mFindIsUp
+                    + " mSelectingText=" + mSelectingText
+                    + " nativePageShouldHandleShiftAndArrows()="
+                    + nativePageShouldHandleShiftAndArrows()
+                    + " animateZoom=" + animateZoom
+                    + " extras=" + extras);
+        }
+
+        calcOurContentVisibleRectF(mVisibleContentRect);
+        if (canvas.isHardwareAccelerated()) {
+            Rect glRectViewport = mGLViewportEmpty ? null : mGLRectViewport;
+            Rect viewRectViewport = mGLViewportEmpty ? null : mViewRectViewport;
+
+            int functor = nativeGetDrawGLFunction(mNativeClass, glRectViewport,
+                    viewRectViewport, mVisibleContentRect, getScale(), extras);
+            ((HardwareCanvas) canvas).callDrawGLFunction(functor);
+            if (mHardwareAccelSkia != getSettings().getHardwareAccelSkiaEnabled()) {
+                mHardwareAccelSkia = getSettings().getHardwareAccelSkiaEnabled();
+                nativeUseHardwareAccelSkia(mHardwareAccelSkia);
+            }
+
+        } else {
+            DrawFilter df = null;
+            if (mZoomManager.isZoomAnimating() || UIAnimationsRunning) {
+                df = mZoomFilter;
+            } else if (animateScroll) {
+                df = mScrollFilter;
+            }
+            canvas.setDrawFilter(df);
+            // XXX: Revisit splitting content.  Right now it causes a
+            // synchronization problem with layers.
+            int content = nativeDraw(canvas, mVisibleContentRect, color,
+                    extras, false);
+            canvas.setDrawFilter(null);
+            if (!mBlockWebkitViewMessages && content != 0) {
+                mWebViewCore.sendMessage(EventHub.SPLIT_PICTURE_SET, content, 0);
+            }
+        }
+
+        canvas.restoreToCount(saveCount);
+        if (mSelectingText) {
+            drawTextSelectionHandles(canvas);
+        }
+
+        if (extras == DRAW_EXTRAS_CURSOR_RING) {
+            if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) {
+                mTouchMode = TOUCH_SHORTPRESS_MODE;
+            }
+        }
+        if (mFocusSizeChanged) {
+            mFocusSizeChanged = false;
+            // If we are zooming, this will get handled above, when the zoom
+            // finishes.  We also do not need to do this unless the WebTextView
+            // is showing. With hardware acceleration, the pageSwapCallback()
+            // updates the WebTextView position in sync with page swapping
+            if (!canvas.isHardwareAccelerated() && !animateZoom && inEditingMode()) {
+                didUpdateWebTextViewDimensions(ANYWHERE);
+            }
+        }
+    }
+
+    private void drawTextSelectionHandles(Canvas canvas) {
+        int[] handles = new int[4];
+        getSelectionHandles(handles);
+        int start_x = contentToViewDimension(handles[0]);
+        int start_y = contentToViewDimension(handles[1]);
+        int end_x = contentToViewDimension(handles[2]);
+        int end_y = contentToViewDimension(handles[3]);
+
+        if (mIsCaretSelection) {
+            if (mSelectHandleCenter == null) {
+                mSelectHandleCenter = mContext.getResources().getDrawable(
+                        com.android.internal.R.drawable.text_select_handle_middle);
+            }
+            // Caret handle is centered
+            start_x -= (mSelectHandleCenter.getIntrinsicWidth() / 2);
+            mSelectHandleCenter.setBounds(start_x, start_y,
+                    start_x + mSelectHandleCenter.getIntrinsicWidth(),
+                    start_y + mSelectHandleCenter.getIntrinsicHeight());
+            mSelectHandleCenter.draw(canvas);
+        } else {
+            if (mSelectHandleLeft == null) {
+                mSelectHandleLeft = mContext.getResources().getDrawable(
+                        com.android.internal.R.drawable.text_select_handle_left);
+            }
+            // Magic formula copied from TextView
+            start_x -= (mSelectHandleLeft.getIntrinsicWidth() * 3) / 4;
+            mSelectHandleLeft.setBounds(start_x, start_y,
+                    start_x + mSelectHandleLeft.getIntrinsicWidth(),
+                    start_y + mSelectHandleLeft.getIntrinsicHeight());
+            if (mSelectHandleRight == null) {
+                mSelectHandleRight = mContext.getResources().getDrawable(
+                        com.android.internal.R.drawable.text_select_handle_right);
+            }
+            end_x -= mSelectHandleRight.getIntrinsicWidth() / 4;
+            mSelectHandleRight.setBounds(end_x, end_y,
+                    end_x + mSelectHandleRight.getIntrinsicWidth(),
+                    end_y + mSelectHandleRight.getIntrinsicHeight());
+            mSelectHandleLeft.draw(canvas);
+            mSelectHandleRight.draw(canvas);
+        }
+    }
+
+    /**
+     * Takes an int[4] array as an output param with the values being
+     * startX, startY, endX, endY
+     */
+    private void getSelectionHandles(int[] handles) {
+        handles[0] = mSelectCursorBase.right;
+        handles[1] = mSelectCursorBase.bottom -
+                (mSelectCursorBase.height() / 4);
+        handles[2] = mSelectCursorExtent.left;
+        handles[3] = mSelectCursorExtent.bottom
+                - (mSelectCursorExtent.height() / 4);
+        if (!nativeIsBaseFirst(mNativeClass)) {
+            int swap = handles[0];
+            handles[0] = handles[2];
+            handles[2] = swap;
+            swap = handles[1];
+            handles[1] = handles[3];
+            handles[3] = swap;
+        }
+    }
+
+    // draw history
+    private boolean mDrawHistory = false;
+    private Picture mHistoryPicture = null;
+    private int mHistoryWidth = 0;
+    private int mHistoryHeight = 0;
+
+    // Only check the flag, can be called from WebCore thread
+    boolean drawHistory() {
+        return mDrawHistory;
+    }
+
+    int getHistoryPictureWidth() {
+        return (mHistoryPicture != null) ? mHistoryPicture.getWidth() : 0;
+    }
+
+    // Should only be called in UI thread
+    void switchOutDrawHistory() {
+        if (null == mWebViewCore) return; // CallbackProxy may trigger this
+        if (mDrawHistory && (getProgress() == 100 || nativeHasContent())) {
+            mDrawHistory = false;
+            mHistoryPicture = null;
+            invalidate();
+            int oldScrollX = mScrollX;
+            int oldScrollY = mScrollY;
+            mScrollX = pinLocX(mScrollX);
+            mScrollY = pinLocY(mScrollY);
+            if (oldScrollX != mScrollX || oldScrollY != mScrollY) {
+                onScrollChanged(mScrollX, mScrollY, oldScrollX, oldScrollY);
+            } else {
+                sendOurVisibleRect();
+            }
+        }
+    }
+
+    // TODO: Remove this
+    WebViewCore.CursorData cursorData() {
+        if (sDisableNavcache) {
+            return new WebViewCore.CursorData(0, 0, 0, 0);
+        }
+        WebViewCore.CursorData result = cursorDataNoPosition();
+        Point position = nativeCursorPosition();
+        result.mX = position.x;
+        result.mY = position.y;
+        return result;
+    }
+
+    WebViewCore.CursorData cursorDataNoPosition() {
+        WebViewCore.CursorData result = new WebViewCore.CursorData();
+        result.mMoveGeneration = nativeMoveGeneration();
+        result.mFrame = nativeCursorFramePointer();
+        return result;
+    }
+
+    /**
+     *  Delete text from start to end in the focused textfield. If there is no
+     *  focus, or if start == end, silently fail.  If start and end are out of
+     *  order, swap them.
+     *  @param  start   Beginning of selection to delete.
+     *  @param  end     End of selection to delete.
+     */
+    /* package */ void deleteSelection(int start, int end) {
+        mTextGeneration++;
+        WebViewCore.TextSelectionData data
+                = new WebViewCore.TextSelectionData(start, end, 0);
+        mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0,
+                data);
+    }
+
+    /**
+     *  Set the selection to (start, end) in the focused textfield. If start and
+     *  end are out of order, swap them.
+     *  @param  start   Beginning of selection.
+     *  @param  end     End of selection.
+     */
+    /* package */ void setSelection(int start, int end) {
+        if (mWebViewCore != null) {
+            mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end);
+        }
+    }
+
+    @Override
+    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
+        if (mInputConnection == null) {
+            mInputConnection = new WebViewInputConnection();
+        }
+        mInputConnection.setupEditorInfo(outAttrs);
+        return mInputConnection;
+    }
+
+    /**
+     * Called in response to a message from webkit telling us that the soft
+     * keyboard should be launched.
+     */
+    private void displaySoftKeyboard(boolean isTextView) {
+        InputMethodManager imm = (InputMethodManager)
+                getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+
+        // bring it back to the default level scale so that user can enter text
+        boolean zoom = mZoomManager.getScale() < mZoomManager.getDefaultScale();
+        if (zoom) {
+            mZoomManager.setZoomCenter(mLastTouchX, mLastTouchY);
+            mZoomManager.setZoomScale(mZoomManager.getDefaultScale(), false);
+        }
+        if (isTextView) {
+            rebuildWebTextView();
+            if (inEditingMode()) {
+                imm.showSoftInput(mWebTextView, 0, mWebTextView.getResultReceiver());
+                if (zoom) {
+                    didUpdateWebTextViewDimensions(INTERSECTS_SCREEN);
+                }
+                return;
+            }
+        }
+        // Used by plugins and contentEditable.
+        // Also used if the navigation cache is out of date, and
+        // does not recognize that a textfield is in focus.  In that
+        // case, use WebView as the targeted view.
+        // see http://b/issue?id=2457459
+        imm.showSoftInput(this, 0);
+    }
+
+    // Called by WebKit to instruct the UI to hide the keyboard
+    private void hideSoftKeyboard() {
+        InputMethodManager imm = InputMethodManager.peekInstance();
+        if (imm != null && (imm.isActive(this)
+                || (inEditingMode() && imm.isActive(mWebTextView)))) {
+            imm.hideSoftInputFromWindow(this.getWindowToken(), 0);
+        }
+    }
+
+    /*
+     * This method checks the current focus and cursor and potentially rebuilds
+     * mWebTextView to have the appropriate properties, such as password,
+     * multiline, and what text it contains.  It also removes it if necessary.
+     */
+    /* package */ void rebuildWebTextView() {
+        if (!sEnableWebTextView) {
+            return; // always use WebKit's text entry
+        }
+        // If the WebView does not have focus, do nothing until it gains focus.
+        if (!hasFocus() && (null == mWebTextView || !mWebTextView.hasFocus())) {
+            return;
+        }
+        boolean alreadyThere = inEditingMode();
+        // inEditingMode can only return true if mWebTextView is non-null,
+        // so we can safely call remove() if (alreadyThere)
+        if (0 == mNativeClass || !nativeFocusCandidateIsTextInput()) {
+            if (alreadyThere) {
+                mWebTextView.remove();
+            }
+            return;
+        }
+        // At this point, we know we have found an input field, so go ahead
+        // and create the WebTextView if necessary.
+        if (mWebTextView == null) {
+            mWebTextView = new WebTextView(mContext, WebView.this, mAutoFillData.getQueryId());
+            // Initialize our generation number.
+            mTextGeneration = 0;
+        }
+        mWebTextView.updateTextSize();
+        updateWebTextViewPosition();
+        String text = nativeFocusCandidateText();
+        int nodePointer = nativeFocusCandidatePointer();
+        // This needs to be called before setType, which may call
+        // requestFormData, and it needs to have the correct nodePointer.
+        mWebTextView.setNodePointer(nodePointer);
+        mWebTextView.setType(nativeFocusCandidateType());
+        // Gravity needs to be set after setType
+        mWebTextView.setGravityForRtl(nativeFocusCandidateIsRtlText());
+        if (null == text) {
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "rebuildWebTextView null == text");
+            }
+            text = "";
+        }
+        mWebTextView.setTextAndKeepSelection(text);
+        InputMethodManager imm = InputMethodManager.peekInstance();
+        if (imm != null && imm.isActive(mWebTextView)) {
+            imm.restartInput(mWebTextView);
+            mWebTextView.clearComposingText();
+        }
+        if (isFocused()) {
+            mWebTextView.requestFocus();
+        }
+    }
+
+    private void updateWebTextViewPosition() {
+        Rect visibleRect = new Rect();
+        calcOurContentVisibleRect(visibleRect);
+        // Note that sendOurVisibleRect calls viewToContent, so the coordinates
+        // should be in content coordinates.
+        Rect bounds = nativeFocusCandidateNodeBounds();
+        Rect vBox = contentToViewRect(bounds);
+        offsetByLayerScrollPosition(vBox);
+        mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), vBox.height());
+        if (!Rect.intersects(bounds, visibleRect)) {
+            revealSelection();
+        }
+        updateWebTextViewPadding();
+    }
+
+    /**
+     * Update the padding of mWebTextView based on the native textfield/textarea
+     */
+    void updateWebTextViewPadding() {
+        Rect paddingRect = nativeFocusCandidatePaddingRect();
+        if (paddingRect != null) {
+            // Use contentToViewDimension since these are the dimensions of
+            // the padding.
+            mWebTextView.setPadding(
+                    contentToViewDimension(paddingRect.left),
+                    contentToViewDimension(paddingRect.top),
+                    contentToViewDimension(paddingRect.right),
+                    contentToViewDimension(paddingRect.bottom));
+        }
+    }
+
+    /**
+     * Tell webkit to put the cursor on screen.
+     */
+    /* package */ void revealSelection() {
+        if (mWebViewCore != null) {
+            mWebViewCore.sendMessage(EventHub.REVEAL_SELECTION);
+        }
+    }
+
+    /**
+     * Called by WebTextView to find saved form data associated with the
+     * textfield
+     * @param name Name of the textfield.
+     * @param nodePointer Pointer to the node of the textfield, so it can be
+     *          compared to the currently focused textfield when the data is
+     *          retrieved.
+     * @param autoFillable true if WebKit has determined this field is part of
+     *          a form that can be auto filled.
+     * @param autoComplete true if the attribute "autocomplete" is set to true
+     *          on the textfield.
+     */
+    /* package */ void requestFormData(String name, int nodePointer,
+            boolean autoFillable, boolean autoComplete) {
+        if (mWebViewCore.getSettings().getSaveFormData()) {
+            Message update = mPrivateHandler.obtainMessage(REQUEST_FORM_DATA);
+            update.arg1 = nodePointer;
+            RequestFormData updater = new RequestFormData(name, getUrl(),
+                    update, autoFillable, autoComplete);
+            Thread t = new Thread(updater);
+            t.start();
+        }
+    }
+
+    /**
+     * Pass a message to find out the <label> associated with the <input>
+     * identified by nodePointer
+     * @param framePointer Pointer to the frame containing the <input> node
+     * @param nodePointer Pointer to the node for which a <label> is desired.
+     */
+    /* package */ void requestLabel(int framePointer, int nodePointer) {
+        mWebViewCore.sendMessage(EventHub.REQUEST_LABEL, framePointer,
+                nodePointer);
+    }
+
+    /*
+     * This class requests an Adapter for the WebTextView which shows past
+     * entries stored in the database.  It is a Runnable so that it can be done
+     * in its own thread, without slowing down the UI.
+     */
+    private class RequestFormData implements Runnable {
+        private String mName;
+        private String mUrl;
+        private Message mUpdateMessage;
+        private boolean mAutoFillable;
+        private boolean mAutoComplete;
+        private WebSettings mWebSettings;
+
+        public RequestFormData(String name, String url, Message msg,
+                boolean autoFillable, boolean autoComplete) {
+            mName = name;
+            mUrl = WebTextView.urlForAutoCompleteData(url);
+            mUpdateMessage = msg;
+            mAutoFillable = autoFillable;
+            mAutoComplete = autoComplete;
+            mWebSettings = getSettings();
+        }
+
+        @Override
+        public void run() {
+            ArrayList<String> pastEntries = new ArrayList<String>();
+
+            if (mAutoFillable) {
+                // Note that code inside the adapter click handler in WebTextView depends
+                // on the AutoFill item being at the top of the drop down list. If you change
+                // the order, make sure to do it there too!
+                if (mWebSettings != null && mWebSettings.getAutoFillProfile() != null) {
+                    pastEntries.add(getResources().getText(
+                            com.android.internal.R.string.autofill_this_form).toString() +
+                            " " +
+                            mAutoFillData.getPreviewString());
+                    mWebTextView.setAutoFillProfileIsSet(true);
+                } else {
+                    // There is no autofill profile set up yet, so add an option that
+                    // will invite the user to set their profile up.
+                    pastEntries.add(getResources().getText(
+                            com.android.internal.R.string.setup_autofill).toString());
+                    mWebTextView.setAutoFillProfileIsSet(false);
+                }
+            }
+
+            if (mAutoComplete) {
+                pastEntries.addAll(mDatabase.getFormData(mUrl, mName));
+            }
+
+            if (pastEntries.size() > 0) {
+                AutoCompleteAdapter adapter = new
+                        AutoCompleteAdapter(mContext, pastEntries);
+                mUpdateMessage.obj = adapter;
+                mUpdateMessage.sendToTarget();
+            }
+        }
+    }
+
+    /**
+     * Dump the display tree to "/sdcard/displayTree.txt"
+     *
+     * @hide debug only
+     */
+    public void dumpDisplayTree() {
+        nativeDumpDisplayTree(getUrl());
+    }
+
+    /**
+     * Dump the dom tree to adb shell if "toFile" is False, otherwise dump it to
+     * "/sdcard/domTree.txt"
+     *
+     * @hide debug only
+     */
+    public void dumpDomTree(boolean toFile) {
+        mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, toFile ? 1 : 0, 0);
+    }
+
+    /**
+     * Dump the render tree to adb shell if "toFile" is False, otherwise dump it
+     * to "/sdcard/renderTree.txt"
+     *
+     * @hide debug only
+     */
+    public void dumpRenderTree(boolean toFile) {
+        mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, toFile ? 1 : 0, 0);
+    }
+
+    /**
+     * Called by DRT on UI thread, need to proxy to WebCore thread.
+     *
+     * @hide debug only
+     */
+    public void useMockDeviceOrientation() {
+        mWebViewCore.sendMessage(EventHub.USE_MOCK_DEVICE_ORIENTATION);
+    }
+
+    /**
+     * Called by DRT on WebCore thread.
+     *
+     * @hide debug only
+     */
+    public void setMockDeviceOrientation(boolean canProvideAlpha, double alpha,
+            boolean canProvideBeta, double beta, boolean canProvideGamma, double gamma) {
+        mWebViewCore.setMockDeviceOrientation(canProvideAlpha, alpha, canProvideBeta, beta,
+                canProvideGamma, gamma);
+    }
+
+    // This is used to determine long press with the center key.  Does not
+    // affect long press with the trackball/touch.
+    private boolean mGotCenterDown = false;
+
+    @Override
+    public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
+        if (mBlockWebkitViewMessages) {
+            return false;
+        }
+        // send complex characters to webkit for use by JS and plugins
+        if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getCharacters() != null) {
+            // pass the key to DOM
+            mWebViewCore.sendMessage(EventHub.KEY_DOWN, event);
+            mWebViewCore.sendMessage(EventHub.KEY_UP, event);
+            // return true as DOM handles the key
+            return true;
+        }
+        return false;
+    }
+
+    private boolean isEnterActionKey(int keyCode) {
+        return keyCode == KeyEvent.KEYCODE_DPAD_CENTER
+                || keyCode == KeyEvent.KEYCODE_ENTER
+                || keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER;
+    }
+
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis()
+                    + "keyCode=" + keyCode
+                    + ", " + event + ", unicode=" + event.getUnicodeChar());
+        }
+        if (mIsCaretSelection) {
+            selectionDone();
+        }
+        if (mBlockWebkitViewMessages) {
+            return false;
+        }
+
+        // don't implement accelerator keys here; defer to host application
+        if (event.isCtrlPressed()) {
+            return false;
+        }
+
+        if (mNativeClass == 0) {
+            return false;
+        }
+
+        // do this hack up front, so it always works, regardless of touch-mode
+        if (AUTO_REDRAW_HACK && (keyCode == KeyEvent.KEYCODE_CALL)) {
+            mAutoRedraw = !mAutoRedraw;
+            if (mAutoRedraw) {
+                invalidate();
+            }
+            return true;
+        }
+
+        // Bubble up the key event if
+        // 1. it is a system key; or
+        // 2. the host application wants to handle it;
+        if (event.isSystem()
+                || mCallbackProxy.uiOverrideKeyEvent(event)) {
+            return false;
+        }
+
+        // accessibility support
+        if (accessibilityScriptInjected()) {
+            if (AccessibilityManager.getInstance(mContext).isEnabled()) {
+                // if an accessibility script is injected we delegate to it the key handling.
+                // this script is a screen reader which is a fully fledged solution for blind
+                // users to navigate in and interact with web pages.
+                mWebViewCore.sendMessage(EventHub.KEY_DOWN, event);
+                return true;
+            } else {
+                // Clean up if accessibility was disabled after loading the current URL.
+                mAccessibilityScriptInjected = false;
+            }
+        } else if (mAccessibilityInjector != null) {
+            if (AccessibilityManager.getInstance(mContext).isEnabled()) {
+                if (mAccessibilityInjector.onKeyEvent(event)) {
+                    // if an accessibility injector is present (no JavaScript enabled or the site
+                    // opts out injecting our JavaScript screen reader) we let it decide whether
+                    // to act on and consume the event.
+                    return true;
+                }
+            } else {
+                // Clean up if accessibility was disabled after loading the current URL.
+                mAccessibilityInjector = null;
+            }
+        }
+
+        if (keyCode == KeyEvent.KEYCODE_PAGE_UP) {
+            if (event.hasNoModifiers()) {
+                pageUp(false);
+                return true;
+            } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) {
+                pageUp(true);
+                return true;
+            }
+        }
+
+        if (keyCode == KeyEvent.KEYCODE_PAGE_DOWN) {
+            if (event.hasNoModifiers()) {
+                pageDown(false);
+                return true;
+            } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) {
+                pageDown(true);
+                return true;
+            }
+        }
+
+        if (keyCode == KeyEvent.KEYCODE_MOVE_HOME && event.hasNoModifiers()) {
+            pageUp(true);
+            return true;
+        }
+
+        if (keyCode == KeyEvent.KEYCODE_MOVE_END && event.hasNoModifiers()) {
+            pageDown(true);
+            return true;
+        }
+
+        if (keyCode >= KeyEvent.KEYCODE_DPAD_UP
+                && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) {
+            switchOutDrawHistory();
+            if (nativePageShouldHandleShiftAndArrows()) {
+                letPageHandleNavKey(keyCode, event.getEventTime(), true, event.getMetaState());
+                return true;
+            }
+            if (event.hasModifiers(KeyEvent.META_ALT_ON)) {
+                switch (keyCode) {
+                    case KeyEvent.KEYCODE_DPAD_UP:
+                        pageUp(true);
+                        return true;
+                    case KeyEvent.KEYCODE_DPAD_DOWN:
+                        pageDown(true);
+                        return true;
+                    case KeyEvent.KEYCODE_DPAD_LEFT:
+                        nativeClearCursor(); // start next trackball movement from page edge
+                        return pinScrollTo(0, mScrollY, true, 0);
+                    case KeyEvent.KEYCODE_DPAD_RIGHT:
+                        nativeClearCursor(); // start next trackball movement from page edge
+                        return pinScrollTo(mContentWidth, mScrollY, true, 0);
+                }
+            }
+            if (navHandledKey(keyCode, 1, false, event.getEventTime())) {
+                playSoundEffect(keyCodeToSoundsEffect(keyCode));
+                return true;
+            }
+            // Bubble up the key event as WebView doesn't handle it
+            return false;
+        }
+
+        if (isEnterActionKey(keyCode)) {
+            switchOutDrawHistory();
+            boolean wantsKeyEvents = nativeCursorNodePointer() == 0
+                || nativeCursorWantsKeyEvents();
+            if (event.getRepeatCount() == 0) {
+                if (mSelectingText) {
+                    return true; // discard press if copy in progress
+                }
+                mGotCenterDown = true;
+                mPrivateHandler.sendMessageDelayed(mPrivateHandler
+                        .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT);
+                if (!wantsKeyEvents) return true;
+            }
+            // Bubble up the key event as WebView doesn't handle it
+            if (!wantsKeyEvents) return false;
+        }
+
+        if (getSettings().getNavDump()) {
+            switch (keyCode) {
+                case KeyEvent.KEYCODE_4:
+                    dumpDisplayTree();
+                    break;
+                case KeyEvent.KEYCODE_5:
+                case KeyEvent.KEYCODE_6:
+                    dumpDomTree(keyCode == KeyEvent.KEYCODE_5);
+                    break;
+                case KeyEvent.KEYCODE_7:
+                case KeyEvent.KEYCODE_8:
+                    dumpRenderTree(keyCode == KeyEvent.KEYCODE_7);
+                    break;
+            }
+        }
+
+        if (nativeCursorIsTextInput()) {
+            // This message will put the node in focus, for the DOM's notion
+            // of focus.
+            mWebViewCore.sendMessage(EventHub.FAKE_CLICK, nativeCursorFramePointer(),
+                    nativeCursorNodePointer());
+            // This will bring up the WebTextView and put it in focus, for
+            // our view system's notion of focus
+            rebuildWebTextView();
+            // Now we need to pass the event to it
+            if (inEditingMode()) {
+                mWebTextView.setDefaultSelection();
+                return mWebTextView.dispatchKeyEvent(event);
+            }
+        } else if (nativeHasFocusNode()) {
+            // In this case, the cursor is not on a text input, but the focus
+            // might be.  Check it, and if so, hand over to the WebTextView.
+            rebuildWebTextView();
+            if (inEditingMode()) {
+                mWebTextView.setDefaultSelection();
+                return mWebTextView.dispatchKeyEvent(event);
+            }
+        }
+
+        // TODO: should we pass all the keys to DOM or check the meta tag
+        if (nativeCursorWantsKeyEvents() || true) {
+            // pass the key to DOM
+            mWebViewCore.sendMessage(EventHub.KEY_DOWN, event);
+            // return true as DOM handles the key
+            return true;
+        }
+
+        // Bubble up the key event as WebView doesn't handle it
+        return false;
+    }
+
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent event) {
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis()
+                    + ", " + event + ", unicode=" + event.getUnicodeChar());
+        }
+        if (mBlockWebkitViewMessages) {
+            return false;
+        }
+
+        if (mNativeClass == 0) {
+            return false;
+        }
+
+        // special CALL handling when cursor node's href is "tel:XXX"
+        if (keyCode == KeyEvent.KEYCODE_CALL && nativeHasCursorNode()) {
+            String text = nativeCursorText();
+            if (!nativeCursorIsTextInput() && text != null
+                    && text.startsWith(SCHEME_TEL)) {
+                Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(text));
+                getContext().startActivity(intent);
+                return true;
+            }
+        }
+
+        // Bubble up the key event if
+        // 1. it is a system key; or
+        // 2. the host application wants to handle it;
+        if (event.isSystem()
+                || mCallbackProxy.uiOverrideKeyEvent(event)) {
+            return false;
+        }
+
+        // accessibility support
+        if (accessibilityScriptInjected()) {
+            if (AccessibilityManager.getInstance(mContext).isEnabled()) {
+                // if an accessibility script is injected we delegate to it the key handling.
+                // this script is a screen reader which is a fully fledged solution for blind
+                // users to navigate in and interact with web pages.
+                mWebViewCore.sendMessage(EventHub.KEY_UP, event);
+                return true;
+            } else {
+                // Clean up if accessibility was disabled after loading the current URL.
+                mAccessibilityScriptInjected = false;
+            }
+        } else if (mAccessibilityInjector != null) {
+            if (AccessibilityManager.getInstance(mContext).isEnabled()) {
+                if (mAccessibilityInjector.onKeyEvent(event)) {
+                    // if an accessibility injector is present (no JavaScript enabled or the site
+                    // opts out injecting our JavaScript screen reader) we let it decide whether to
+                    // act on and consume the event.
+                    return true;
+                }
+            } else {
+                // Clean up if accessibility was disabled after loading the current URL.
+                mAccessibilityInjector = null;
+            }
+        }
+
+        if (keyCode >= KeyEvent.KEYCODE_DPAD_UP
+                && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) {
+            if (nativePageShouldHandleShiftAndArrows()) {
+                letPageHandleNavKey(keyCode, event.getEventTime(), false, event.getMetaState());
+                return true;
+            }
+            // always handle the navigation keys in the UI thread
+            // Bubble up the key event as WebView doesn't handle it
+            return false;
+        }
+
+        if (isEnterActionKey(keyCode)) {
+            // remove the long press message first
+            mPrivateHandler.removeMessages(LONG_PRESS_CENTER);
+            mGotCenterDown = false;
+
+            if (mSelectingText) {
+                copySelection();
+                selectionDone();
+                return true; // discard press if copy in progress
+            }
+
+            if (!sDisableNavcache) {
+                // perform the single click
+                Rect visibleRect = sendOurVisibleRect();
+                // Note that sendOurVisibleRect calls viewToContent, so the
+                // coordinates should be in content coordinates.
+                if (!nativeCursorIntersects(visibleRect)) {
+                    return false;
+                }
+                WebViewCore.CursorData data = cursorData();
+                mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data);
+                playSoundEffect(SoundEffectConstants.CLICK);
+                if (nativeCursorIsTextInput()) {
+                    rebuildWebTextView();
+                    centerKeyPressOnTextField();
+                    if (inEditingMode()) {
+                        mWebTextView.setDefaultSelection();
+                    }
+                    return true;
+                }
+                clearTextEntry();
+                nativeShowCursorTimed();
+                if (mCallbackProxy.uiOverrideUrlLoading(nativeCursorText())) {
+                    return true;
+                }
+                if (nativeCursorNodePointer() != 0 && !nativeCursorWantsKeyEvents()) {
+                    mWebViewCore.sendMessage(EventHub.CLICK, data.mFrame,
+                            nativeCursorNodePointer());
+                    return true;
+                }
+            }
+        }
+
+        // TODO: should we pass all the keys to DOM or check the meta tag
+        if (nativeCursorWantsKeyEvents() || true) {
+            // pass the key to DOM
+            mWebViewCore.sendMessage(EventHub.KEY_UP, event);
+            // return true as DOM handles the key
+            return true;
+        }
+
+        // Bubble up the key event as WebView doesn't handle it
+        return false;
+    }
+
+    private boolean startSelectActionMode() {
+        mSelectCallback = new SelectActionModeCallback();
+        mSelectCallback.setTextSelected(!mIsCaretSelection);
+        mSelectCallback.setWebView(this);
+        if (startActionMode(mSelectCallback) == null) {
+            // There is no ActionMode, so do not allow the user to modify a
+            // selection.
+            selectionDone();
+            return false;
+        }
+        performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
+        return true;
+    }
+
+    private void showPasteWindow() {
+        ClipboardManager cm = (ClipboardManager)(mContext
+                .getSystemService(Context.CLIPBOARD_SERVICE));
+        if (cm.hasPrimaryClip()) {
+            Rect cursorRect = contentToViewRect(mSelectCursorBase);
+            int[] location = new int[2];
+            getLocationInWindow(location);
+            cursorRect.offset(location[0] - mScrollX, location[1] - mScrollY);
+            if (mPasteWindow == null) {
+                mPasteWindow = new PastePopupWindow();
+            }
+            mPasteWindow.show(cursorRect, location[0], location[1]);
+        }
+    }
+
+    private void hidePasteButton() {
+        if (mPasteWindow != null) {
+            mPasteWindow.hide();
+        }
+    }
+
+    private void syncSelectionCursors() {
+        mSelectCursorBaseLayerId =
+                nativeGetHandleLayerId(mNativeClass, HANDLE_ID_BASE, mSelectCursorBase);
+        mSelectCursorExtentLayerId =
+                nativeGetHandleLayerId(mNativeClass, HANDLE_ID_EXTENT, mSelectCursorExtent);
+    }
+
+    private boolean setupWebkitSelect() {
+        syncSelectionCursors();
+        if (mIsCaretSelection) {
+            showPasteWindow();
+        } else if (!startSelectActionMode()) {
+            selectionDone();
+            return false;
+        }
+        mSelectingText = true;
+        mTouchMode = TOUCH_DRAG_MODE;
+        return true;
+    }
+
+    private void updateWebkitSelection() {
+        int[] handles = null;
+        if (mIsCaretSelection) {
+            mSelectCursorExtent.set(mSelectCursorBase);
+        }
+        if (mSelectingText) {
+            handles = new int[4];
+            handles[0] = mSelectCursorBase.centerX();
+            handles[1] = mSelectCursorBase.centerY();
+            handles[2] = mSelectCursorExtent.centerX();
+            handles[3] = mSelectCursorExtent.centerY();
+        } else {
+            nativeSetTextSelection(mNativeClass, 0);
+        }
+        mWebViewCore.removeMessages(EventHub.SELECT_TEXT);
+        mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SELECT_TEXT, handles);
+    }
+
+    private void resetCaretTimer() {
+        mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE);
+        if (!mSelectionStarted) {
+            mPrivateHandler.sendEmptyMessageDelayed(CLEAR_CARET_HANDLE,
+                    CARET_HANDLE_STAMINA_MS);
+        }
+    }
+
+    /**
+     * Use this method to put the WebView into text selection mode.
+     * Do not rely on this functionality; it will be deprecated in the future.
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public void emulateShiftHeld() {
+        checkThread();
+    }
+
+    /**
+     * Select all of the text in this WebView.
+     *
+     * @hide This is an implementation detail.
+     */
+    public void selectAll() {
+        mWebViewCore.sendMessage(EventHub.SELECT_ALL);
+    }
+
+    /**
+     * Called when the selection has been removed.
+     */
+    void selectionDone() {
+        if (mSelectingText) {
+            hidePasteButton();
+            mSelectingText = false;
+            // finish is idempotent, so this is fine even if selectionDone was
+            // called by mSelectCallback.onDestroyActionMode
+            if (mSelectCallback != null) {
+                mSelectCallback.finish();
+                mSelectCallback = null;
+            }
+            if (!mIsCaretSelection) {
+                updateWebkitSelection();
+            }
+            mIsCaretSelection = false;
+            invalidate(); // redraw without selection
+            mAutoScrollX = 0;
+            mAutoScrollY = 0;
+            mSentAutoScrollMessage = false;
+        }
+    }
+
+    /**
+     * Copy the selection to the clipboard
+     *
+     * @hide This is an implementation detail.
+     */
+    public boolean copySelection() {
+        boolean copiedSomething = false;
+        String selection = getSelection();
+        if (selection != null && selection != "") {
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "copySelection \"" + selection + "\"");
+            }
+            Toast.makeText(mContext
+                    , com.android.internal.R.string.text_copied
+                    , Toast.LENGTH_SHORT).show();
+            copiedSomething = true;
+            ClipboardManager cm = (ClipboardManager)getContext()
+                    .getSystemService(Context.CLIPBOARD_SERVICE);
+            cm.setText(selection);
+            int[] handles = new int[4];
+            getSelectionHandles(handles);
+            mWebViewCore.sendMessage(EventHub.COPY_TEXT, handles);
+        }
+        invalidate(); // remove selection region and pointer
+        return copiedSomething;
+    }
+
+    /**
+     * Cut the selected text into the clipboard
+     *
+     * @hide This is an implementation detail
+     */
+    public void cutSelection() {
+        copySelection();
+        int[] handles = new int[4];
+        getSelectionHandles(handles);
+        mWebViewCore.sendMessage(EventHub.DELETE_TEXT, handles);
+    }
+
+    /**
+     * Paste text from the clipboard to the cursor position.
+     *
+     * @hide This is an implementation detail
+     */
+    public void pasteFromClipboard() {
+        ClipboardManager cm = (ClipboardManager)getContext()
+                .getSystemService(Context.CLIPBOARD_SERVICE);
+        ClipData clipData = cm.getPrimaryClip();
+        if (clipData != null) {
+            ClipData.Item clipItem = clipData.getItemAt(0);
+            CharSequence pasteText = clipItem.getText();
+            if (mInputConnection != null) {
+                mInputConnection.replaceSelection(pasteText);
+            }
+        }
+    }
+
+    /**
+     * @hide This is an implementation detail.
+     */
+    public SearchBox getSearchBox() {
+        if ((mWebViewCore == null) || (mWebViewCore.getBrowserFrame() == null)) {
+            return null;
+        }
+        return mWebViewCore.getBrowserFrame().getSearchBox();
+    }
+
+    /**
+     * Returns the currently highlighted text as a string.
+     */
+    String getSelection() {
+        if (mNativeClass == 0) return "";
+        return nativeGetSelection();
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        if (hasWindowFocus()) setActive(true);
+        final ViewTreeObserver treeObserver = getViewTreeObserver();
+        if (mGlobalLayoutListener == null) {
+            mGlobalLayoutListener = new InnerGlobalLayoutListener();
+            treeObserver.addOnGlobalLayoutListener(mGlobalLayoutListener);
+        }
+        if (mScrollChangedListener == null) {
+            mScrollChangedListener = new InnerScrollChangedListener();
+            treeObserver.addOnScrollChangedListener(mScrollChangedListener);
+        }
+
+        addAccessibilityApisToJavaScript();
+
+        mTouchEventQueue.reset();
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        clearHelpers();
+        mZoomManager.dismissZoomPicker();
+        if (hasWindowFocus()) setActive(false);
+
+        final ViewTreeObserver treeObserver = getViewTreeObserver();
+        if (mGlobalLayoutListener != null) {
+            treeObserver.removeGlobalOnLayoutListener(mGlobalLayoutListener);
+            mGlobalLayoutListener = null;
+        }
+        if (mScrollChangedListener != null) {
+            treeObserver.removeOnScrollChangedListener(mScrollChangedListener);
+            mScrollChangedListener = null;
+        }
+
+        removeAccessibilityApisFromJavaScript();
+
+        super.onDetachedFromWindow();
+    }
+
+    @Override
+    protected void onVisibilityChanged(View changedView, int visibility) {
+        super.onVisibilityChanged(changedView, visibility);
+        // The zoomManager may be null if the webview is created from XML that
+        // specifies the view's visibility param as not visible (see http://b/2794841)
+        if (visibility != View.VISIBLE && mZoomManager != null) {
+            mZoomManager.dismissZoomPicker();
+        }
+        updateDrawingState();
+    }
+
+    /**
+     * @deprecated WebView no longer needs to implement
+     * ViewGroup.OnHierarchyChangeListener.  This method does nothing now.
+     */
+    @Override
+    // Cannot add @hide as this can always be accessed via the interface.
+    @Deprecated
+    public void onChildViewAdded(View parent, View child) {}
+
+    /**
+     * @deprecated WebView no longer needs to implement
+     * ViewGroup.OnHierarchyChangeListener.  This method does nothing now.
+     */
+    @Override
+    // Cannot add @hide as this can always be accessed via the interface.
+    @Deprecated
+    public void onChildViewRemoved(View p, View child) {}
+
+    /**
+     * @deprecated WebView should not have implemented
+     * ViewTreeObserver.OnGlobalFocusChangeListener. This method does nothing now.
+     */
+    @Override
+    // Cannot add @hide as this can always be accessed via the interface.
+    @Deprecated
+    public void onGlobalFocusChanged(View oldFocus, View newFocus) {
+    }
+
+    void setActive(boolean active) {
+        if (active) {
+            if (hasFocus()) {
+                // If our window regained focus, and we have focus, then begin
+                // drawing the cursor ring
+                mDrawCursorRing = !inEditingMode();
+                setFocusControllerActive(true);
+            } else {
+                mDrawCursorRing = false;
+                if (!inEditingMode()) {
+                    // If our window gained focus, but we do not have it, do not
+                    // draw the cursor ring.
+                    setFocusControllerActive(false);
+                }
+                // We do not call recordButtons here because we assume
+                // that when we lost focus, or window focus, it got called with
+                // false for the first parameter
+            }
+        } else {
+            if (!mZoomManager.isZoomPickerVisible()) {
+                /*
+                 * The external zoom controls come in their own window, so our
+                 * window loses focus. Our policy is to not draw the cursor ring
+                 * if our window is not focused, but this is an exception since
+                 * the user can still navigate the web page with the zoom
+                 * controls showing.
+                 */
+                mDrawCursorRing = false;
+            }
+            mKeysPressed.clear();
+            mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+            mTouchMode = TOUCH_DONE_MODE;
+            setFocusControllerActive(false);
+        }
+        invalidate();
+    }
+
+    // To avoid drawing the cursor ring, and remove the TextView when our window
+    // loses focus.
+    @Override
+    public void onWindowFocusChanged(boolean hasWindowFocus) {
+        setActive(hasWindowFocus);
+        if (hasWindowFocus) {
+            JWebCoreJavaBridge.setActiveWebView(this);
+            if (mPictureUpdatePausedForFocusChange) {
+                WebViewCore.resumeUpdatePicture(mWebViewCore);
+                mPictureUpdatePausedForFocusChange = false;
+            }
+        } else {
+            JWebCoreJavaBridge.removeActiveWebView(this);
+            final WebSettings settings = getSettings();
+            if (settings != null && settings.enableSmoothTransition() &&
+                    mWebViewCore != null && !WebViewCore.isUpdatePicturePaused(mWebViewCore)) {
+                WebViewCore.pauseUpdatePicture(mWebViewCore);
+                mPictureUpdatePausedForFocusChange = true;
+            }
+        }
+        super.onWindowFocusChanged(hasWindowFocus);
+    }
+
+    /*
+     * Pass a message to WebCore Thread, telling the WebCore::Page's
+     * FocusController to be  "inactive" so that it will
+     * not draw the blinking cursor.  It gets set to "active" to draw the cursor
+     * in WebViewCore.cpp, when the WebCore thread receives key events/clicks.
+     */
+    /* package */ void setFocusControllerActive(boolean active) {
+        if (mWebViewCore == null) return;
+        mWebViewCore.sendMessage(EventHub.SET_ACTIVE, active ? 1 : 0, 0);
+        // Need to send this message after the document regains focus.
+        if (active && mListBoxMessage != null) {
+            mWebViewCore.sendMessage(mListBoxMessage);
+            mListBoxMessage = null;
+        }
+    }
+
+    @Override
+    protected void onFocusChanged(boolean focused, int direction,
+            Rect previouslyFocusedRect) {
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "MT focusChanged " + focused + ", " + direction);
+        }
+        if (focused) {
+            // When we regain focus, if we have window focus, resume drawing
+            // the cursor ring
+            if (hasWindowFocus()) {
+                mDrawCursorRing = !inEditingMode();
+                setFocusControllerActive(true);
+            //} else {
+                // The WebView has gained focus while we do not have
+                // windowfocus.  When our window lost focus, we should have
+                // called recordButtons(false...)
+            }
+        } else {
+            // When we lost focus, unless focus went to the TextView (which is
+            // true if we are in editing mode), stop drawing the cursor ring.
+            mDrawCursorRing = false;
+            if (!inEditingMode()) {
+                setFocusControllerActive(false);
+            }
+            mKeysPressed.clear();
+        }
+
+        super.onFocusChanged(focused, direction, previouslyFocusedRect);
+    }
+
+    void setGLRectViewport() {
+        // Use the getGlobalVisibleRect() to get the intersection among the parents
+        // visible == false means we're clipped - send a null rect down to indicate that
+        // we should not draw
+        boolean visible = getGlobalVisibleRect(mGLRectViewport);
+        if (visible) {
+            // Then need to invert the Y axis, just for GL
+            View rootView = getRootView();
+            int rootViewHeight = rootView.getHeight();
+            mViewRectViewport.set(mGLRectViewport);
+            int savedWebViewBottom = mGLRectViewport.bottom;
+            mGLRectViewport.bottom = rootViewHeight - mGLRectViewport.top - getVisibleTitleHeightImpl();
+            mGLRectViewport.top = rootViewHeight - savedWebViewBottom;
+            mGLViewportEmpty = false;
+        } else {
+            mGLViewportEmpty = true;
+        }
+        calcOurContentVisibleRectF(mVisibleContentRect);
+        nativeUpdateDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport,
+                mGLViewportEmpty ? null : mViewRectViewport,
+                mVisibleContentRect, getScale());
+    }
+
+    /**
+     * @hide
+     */
+    @Override
+    protected boolean setFrame(int left, int top, int right, int bottom) {
+        boolean changed = super.setFrame(left, top, right, bottom);
+        if (!changed && mHeightCanMeasure) {
+            // When mHeightCanMeasure is true, we will set mLastHeightSent to 0
+            // in WebViewCore after we get the first layout. We do call
+            // requestLayout() when we get contentSizeChanged(). But the View
+            // system won't call onSizeChanged if the dimension is not changed.
+            // In this case, we need to call sendViewSizeZoom() explicitly to
+            // notify the WebKit about the new dimensions.
+            sendViewSizeZoom(false);
+        }
+        setGLRectViewport();
+        return changed;
+    }
+
+    @Override
+    protected void onSizeChanged(int w, int h, int ow, int oh) {
+        super.onSizeChanged(w, h, ow, oh);
+
+        // adjust the max viewport width depending on the view dimensions. This
+        // is to ensure the scaling is not going insane. So do not shrink it if
+        // the view size is temporarily smaller, e.g. when soft keyboard is up.
+        int newMaxViewportWidth = (int) (Math.max(w, h) / mZoomManager.getDefaultMinZoomScale());
+        if (newMaxViewportWidth > sMaxViewportWidth) {
+            sMaxViewportWidth = newMaxViewportWidth;
+        }
+
+        mZoomManager.onSizeChanged(w, h, ow, oh);
+
+        if (mLoadedPicture != null && mDelaySetPicture == null) {
+            // Size changes normally result in a new picture
+            // Re-set the loaded picture to simulate that
+            // However, do not update the base layer as that hasn't changed
+            setNewPicture(mLoadedPicture, false);
+        }
+    }
+
+    @Override
+    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
+        super.onScrollChanged(l, t, oldl, oldt);
+        if (!mInOverScrollMode) {
+            sendOurVisibleRect();
+            // update WebKit if visible title bar height changed. The logic is same
+            // as getVisibleTitleHeightImpl.
+            int titleHeight = getTitleHeight();
+            if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) {
+                sendViewSizeZoom(false);
+            }
+        }
+    }
+
+    @Override
+    public boolean dispatchKeyEvent(KeyEvent event) {
+        switch (event.getAction()) {
+            case KeyEvent.ACTION_DOWN:
+                mKeysPressed.add(Integer.valueOf(event.getKeyCode()));
+                break;
+            case KeyEvent.ACTION_MULTIPLE:
+                // Always accept the action.
+                break;
+            case KeyEvent.ACTION_UP:
+                int location = mKeysPressed.indexOf(Integer.valueOf(event.getKeyCode()));
+                if (location == -1) {
+                    // We did not receive the key down for this key, so do not
+                    // handle the key up.
+                    return false;
+                } else {
+                    // We did receive the key down.  Handle the key up, and
+                    // remove it from our pressed keys.
+                    mKeysPressed.remove(location);
+                }
+                break;
+            default:
+                // Accept the action.  This should not happen, unless a new
+                // action is added to KeyEvent.
+                break;
+        }
+        if (inEditingMode() && mWebTextView.isFocused()) {
+            // Ensure that the WebTextView gets the event, even if it does
+            // not currently have a bounds.
+            return mWebTextView.dispatchKeyEvent(event);
+        } else {
+            return super.dispatchKeyEvent(event);
+        }
+    }
+
+    /*
+     * Here is the snap align logic:
+     * 1. If it starts nearly horizontally or vertically, snap align;
+     * 2. If there is a dramitic direction change, let it go;
+     *
+     * Adjustable parameters. Angle is the radians on a unit circle, limited
+     * to quadrant 1. Values range from 0f (horizontal) to PI/2 (vertical)
+     */
+    private static final float HSLOPE_TO_START_SNAP = .25f;
+    private static final float HSLOPE_TO_BREAK_SNAP = .4f;
+    private static final float VSLOPE_TO_START_SNAP = 1.25f;
+    private static final float VSLOPE_TO_BREAK_SNAP = .95f;
+    /*
+     *  These values are used to influence the average angle when entering
+     *  snap mode. If is is the first movement entering snap, we set the average
+     *  to the appropriate ideal. If the user is entering into snap after the
+     *  first movement, then we average the average angle with these values.
+     */
+    private static final float ANGLE_VERT = 2f;
+    private static final float ANGLE_HORIZ = 0f;
+    /*
+     *  The modified moving average weight.
+     *  Formula: MAV[t]=MAV[t-1] + (P[t]-MAV[t-1])/n
+     */
+    private static final float MMA_WEIGHT_N = 5;
+
+    private boolean hitFocusedPlugin(int contentX, int contentY) {
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "nativeFocusIsPlugin()=" + nativeFocusIsPlugin());
+            Rect r = nativeFocusNodeBounds();
+            Log.v(LOGTAG, "nativeFocusNodeBounds()=(" + r.left + ", " + r.top
+                    + ", " + r.right + ", " + r.bottom + ")");
+        }
+        return nativeFocusIsPlugin()
+                && nativeFocusNodeBounds().contains(contentX, contentY);
+    }
+
+    private boolean shouldForwardTouchEvent() {
+        if (mFullScreenHolder != null) return true;
+        if (mBlockWebkitViewMessages) return false;
+        return mForwardTouchEvents
+                && !mSelectingText
+                && mPreventDefault != PREVENT_DEFAULT_IGNORE
+                && mPreventDefault != PREVENT_DEFAULT_NO;
+    }
+
+    private boolean inFullScreenMode() {
+        return mFullScreenHolder != null;
+    }
+
+    private void dismissFullScreenMode() {
+        if (inFullScreenMode()) {
+            mFullScreenHolder.hide();
+            mFullScreenHolder = null;
+            invalidate();
+        }
+    }
+
+    void onPinchToZoomAnimationStart() {
+        // cancel the single touch handling
+        cancelTouch();
+        onZoomAnimationStart();
+    }
+
+    void onPinchToZoomAnimationEnd(ScaleGestureDetector detector) {
+        onZoomAnimationEnd();
+        // start a drag, TOUCH_PINCH_DRAG, can't use TOUCH_INIT_MODE as
+        // it may trigger the unwanted click, can't use TOUCH_DRAG_MODE
+        // as it may trigger the unwanted fling.
+        mTouchMode = TOUCH_PINCH_DRAG;
+        mConfirmMove = true;
+        startTouch(detector.getFocusX(), detector.getFocusY(), mLastTouchTime);
+    }
+
+    // See if there is a layer at x, y and switch to TOUCH_DRAG_LAYER_MODE if a
+    // layer is found.
+    private void startScrollingLayer(float x, float y) {
+        int contentX = viewToContentX((int) x + mScrollX);
+        int contentY = viewToContentY((int) y + mScrollY);
+        mCurrentScrollingLayerId = nativeScrollableLayer(contentX, contentY,
+                mScrollingLayerRect, mScrollingLayerBounds);
+        if (mCurrentScrollingLayerId != 0) {
+            mTouchMode = TOUCH_DRAG_LAYER_MODE;
+        }
+    }
+
+    // 1/(density * density) used to compute the distance between points.
+    // Computed in init().
+    private float DRAG_LAYER_INVERSE_DENSITY_SQUARED;
+
+    // The distance between two points reported in onTouchEvent scaled by the
+    // density of the screen.
+    private static final int DRAG_LAYER_FINGER_DISTANCE = 20000;
+
+    @Override
+    public boolean onHoverEvent(MotionEvent event) {
+        if (mNativeClass == 0) {
+            return false;
+        }
+        WebViewCore.CursorData data = cursorDataNoPosition();
+        data.mX = viewToContentX((int) event.getX() + mScrollX);
+        data.mY = viewToContentY((int) event.getY() + mScrollY);
+        mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data);
+        return true;
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent ev) {
+        if (mNativeClass == 0 || (!isClickable() && !isLongClickable())) {
+            return false;
+        }
+
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, ev + " at " + ev.getEventTime()
+                + " mTouchMode=" + mTouchMode
+                + " numPointers=" + ev.getPointerCount());
+        }
+
+        // If WebKit wasn't interested in this multitouch gesture, enqueue
+        // the event for handling directly rather than making the round trip
+        // to WebKit and back.
+        if (ev.getPointerCount() > 1 && mPreventDefault != PREVENT_DEFAULT_NO) {
+            passMultiTouchToWebKit(ev, mTouchEventQueue.nextTouchSequence());
+        } else {
+            mTouchEventQueue.enqueueTouchEvent(ev);
+        }
+
+        // Since all events are handled asynchronously, we always want the gesture stream.
+        return true;
+    }
+
+    private float calculateDragAngle(int dx, int dy) {
+        dx = Math.abs(dx);
+        dy = Math.abs(dy);
+        return (float) Math.atan2(dy, dx);
+    }
+
+    /*
+     * Common code for single touch and multi-touch.
+     * (x, y) denotes current focus point, which is the touch point for single touch
+     * and the middle point for multi-touch.
+     */
+    private boolean handleTouchEventCommon(MotionEvent ev, int action, int x, int y) {
+        long eventTime = ev.getEventTime();
+
+        // Due to the touch screen edge effect, a touch closer to the edge
+        // always snapped to the edge. As getViewWidth() can be different from
+        // getWidth() due to the scrollbar, adjusting the point to match
+        // getViewWidth(). Same applied to the height.
+        x = Math.min(x, getViewWidth() - 1);
+        y = Math.min(y, getViewHeightWithTitle() - 1);
+
+        int deltaX = mLastTouchX - x;
+        int deltaY = mLastTouchY - y;
+        int contentX = viewToContentX(x + mScrollX);
+        int contentY = viewToContentY(y + mScrollY);
+
+        switch (action) {
+            case MotionEvent.ACTION_DOWN: {
+                mPreventDefault = PREVENT_DEFAULT_NO;
+                mConfirmMove = false;
+                mInitialHitTestResult = null;
+                if (!mScroller.isFinished()) {
+                    // stop the current scroll animation, but if this is
+                    // the start of a fling, allow it to add to the current
+                    // fling's velocity
+                    mScroller.abortAnimation();
+                    mTouchMode = TOUCH_DRAG_START_MODE;
+                    mConfirmMove = true;
+                    nativeSetIsScrolling(false);
+                } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) {
+                    mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP);
+                    if (sDisableNavcache) {
+                        removeTouchHighlight();
+                    }
+                    if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) {
+                        mTouchMode = TOUCH_DOUBLE_TAP_MODE;
+                    } else {
+                        // commit the short press action for the previous tap
+                        doShortPress();
+                        mTouchMode = TOUCH_INIT_MODE;
+                        mDeferTouchProcess = !mBlockWebkitViewMessages
+                                && (!inFullScreenMode() && mForwardTouchEvents)
+                                ? hitFocusedPlugin(contentX, contentY)
+                                : false;
+                    }
+                } else { // the normal case
+                    mTouchMode = TOUCH_INIT_MODE;
+                    mDeferTouchProcess = !mBlockWebkitViewMessages
+                            && (!inFullScreenMode() && mForwardTouchEvents)
+                            ? hitFocusedPlugin(contentX, contentY)
+                            : false;
+                    if (!mBlockWebkitViewMessages) {
+                        mWebViewCore.sendMessage(
+                                EventHub.UPDATE_FRAME_CACHE_IF_LOADING);
+                    }
+                    if (sDisableNavcache) {
+                        TouchHighlightData data = new TouchHighlightData();
+                        data.mX = contentX;
+                        data.mY = contentY;
+                        data.mNativeLayerRect = new Rect();
+                        data.mNativeLayer = nativeScrollableLayer(
+                                contentX, contentY, data.mNativeLayerRect, null);
+                        data.mSlop = viewToContentDimension(mNavSlop);
+                        mTouchHighlightRegion.setEmpty();
+                        if (!mBlockWebkitViewMessages) {
+                            mTouchHighlightRequested = System.currentTimeMillis();
+                            mWebViewCore.sendMessageAtFrontOfQueue(
+                                    EventHub.HIT_TEST, data);
+                        }
+                        if (DEBUG_TOUCH_HIGHLIGHT) {
+                            if (getSettings().getNavDump()) {
+                                mTouchHighlightX = x + mScrollX;
+                                mTouchHighlightY = y + mScrollY;
+                                mPrivateHandler.postDelayed(new Runnable() {
+                                    @Override
+                                    public void run() {
+                                        mTouchHighlightX = mTouchHighlightY = 0;
+                                        invalidate();
+                                    }
+                                }, TOUCH_HIGHLIGHT_ELAPSE_TIME);
+                            }
+                        }
+                    }
+                    if (mLogEvent && eventTime - mLastTouchUpTime < 1000) {
+                        EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION,
+                                (eventTime - mLastTouchUpTime), eventTime);
+                    }
+                    mSelectionStarted = false;
+                    if (mSelectingText) {
+                        int shiftedY = y - getTitleHeight() + mScrollY;
+                        int shiftedX = x + mScrollX;
+                        if (mSelectHandleCenter != null && mSelectHandleCenter.getBounds()
+                                .contains(shiftedX, shiftedY)) {
+                            mSelectionStarted = true;
+                            mSelectDraggingCursor = mSelectCursorBase;
+                            mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE);
+                            hidePasteButton();
+                        } else if (mSelectHandleLeft != null
+                                && mSelectHandleLeft.getBounds()
+                                    .contains(shiftedX, shiftedY)) {
+                                mSelectionStarted = true;
+                                mSelectDraggingCursor = mSelectCursorBase;
+                        } else if (mSelectHandleRight != null
+                                && mSelectHandleRight.getBounds()
+                                .contains(shiftedX, shiftedY)) {
+                            mSelectionStarted = true;
+                            mSelectDraggingCursor = mSelectCursorExtent;
+                        } else if (mIsCaretSelection) {
+                            selectionDone();
+                        }
+                        if (mSelectDraggingCursor != null) {
+                            mSelectDraggingOffset.set(
+                                    mSelectDraggingCursor.left - contentX,
+                                    mSelectDraggingCursor.top - contentY);
+                        }
+                        if (DebugFlags.WEB_VIEW) {
+                            Log.v(LOGTAG, "select=" + contentX + "," + contentY);
+                        }
+                    }
+                }
+                // Trigger the link
+                if (!mSelectingText && (mTouchMode == TOUCH_INIT_MODE
+                        || mTouchMode == TOUCH_DOUBLE_TAP_MODE)) {
+                    mPrivateHandler.sendEmptyMessageDelayed(
+                            SWITCH_TO_SHORTPRESS, TAP_TIMEOUT);
+                    mPrivateHandler.sendEmptyMessageDelayed(
+                            SWITCH_TO_LONGPRESS, LONG_PRESS_TIMEOUT);
+                    if (inFullScreenMode() || mDeferTouchProcess) {
+                        mPreventDefault = PREVENT_DEFAULT_YES;
+                    } else if (!mBlockWebkitViewMessages && mForwardTouchEvents) {
+                        mPreventDefault = PREVENT_DEFAULT_MAYBE_YES;
+                    } else {
+                        mPreventDefault = PREVENT_DEFAULT_NO;
+                    }
+                    // pass the touch events from UI thread to WebCore thread
+                    if (shouldForwardTouchEvent()) {
+                        TouchEventData ted = new TouchEventData();
+                        ted.mAction = action;
+                        ted.mIds = new int[1];
+                        ted.mIds[0] = ev.getPointerId(0);
+                        ted.mPoints = new Point[1];
+                        ted.mPoints[0] = new Point(contentX, contentY);
+                        ted.mPointsInView = new Point[1];
+                        ted.mPointsInView[0] = new Point(x, y);
+                        ted.mMetaState = ev.getMetaState();
+                        ted.mReprocess = mDeferTouchProcess;
+                        ted.mNativeLayer = nativeScrollableLayer(
+                                contentX, contentY, ted.mNativeLayerRect, null);
+                        ted.mSequence = mTouchEventQueue.nextTouchSequence();
+                        mTouchEventQueue.preQueueTouchEventData(ted);
+                        mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted);
+                        if (mDeferTouchProcess) {
+                            // still needs to set them for compute deltaX/Y
+                            mLastTouchX = x;
+                            mLastTouchY = y;
+                            break;
+                        }
+                        if (!inFullScreenMode()) {
+                            mPrivateHandler.removeMessages(PREVENT_DEFAULT_TIMEOUT);
+                            mPrivateHandler.sendMessageDelayed(mPrivateHandler
+                                    .obtainMessage(PREVENT_DEFAULT_TIMEOUT,
+                                            action, 0), TAP_TIMEOUT);
+                        }
+                    }
+                }
+                startTouch(x, y, eventTime);
+                break;
+            }
+            case MotionEvent.ACTION_MOVE: {
+                boolean firstMove = false;
+                if (!mConfirmMove && (deltaX * deltaX + deltaY * deltaY)
+                        >= mTouchSlopSquare) {
+                    mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
+                    mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+                    mConfirmMove = true;
+                    firstMove = true;
+                    if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) {
+                        mTouchMode = TOUCH_INIT_MODE;
+                    }
+                    if (sDisableNavcache) {
+                        removeTouchHighlight();
+                    }
+                }
+                if (mSelectingText && mSelectionStarted) {
+                    if (DebugFlags.WEB_VIEW) {
+                        Log.v(LOGTAG, "extend=" + contentX + "," + contentY);
+                    }
+                    ViewParent parent = getParent();
+                    if (parent != null) {
+                        parent.requestDisallowInterceptTouchEvent(true);
+                    }
+                    if (deltaX != 0 || deltaY != 0) {
+                        mSelectDraggingCursor.offsetTo(
+                                contentX + mSelectDraggingOffset.x,
+                                contentY + mSelectDraggingOffset.y);
+                        updateWebkitSelection();
+                        mLastTouchX = x;
+                        mLastTouchY = y;
+                        invalidate();
+                    }
+                    break;
+                }
+
+                // pass the touch events from UI thread to WebCore thread
+                if (shouldForwardTouchEvent() && mConfirmMove && (firstMove
+                        || eventTime - mLastSentTouchTime > mCurrentTouchInterval)) {
+                    TouchEventData ted = new TouchEventData();
+                    ted.mAction = action;
+                    ted.mIds = new int[1];
+                    ted.mIds[0] = ev.getPointerId(0);
+                    ted.mPoints = new Point[1];
+                    ted.mPoints[0] = new Point(contentX, contentY);
+                    ted.mPointsInView = new Point[1];
+                    ted.mPointsInView[0] = new Point(x, y);
+                    ted.mMetaState = ev.getMetaState();
+                    ted.mReprocess = mDeferTouchProcess;
+                    ted.mNativeLayer = mCurrentScrollingLayerId;
+                    ted.mNativeLayerRect.set(mScrollingLayerRect);
+                    ted.mSequence = mTouchEventQueue.nextTouchSequence();
+                    mTouchEventQueue.preQueueTouchEventData(ted);
+                    mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted);
+                    mLastSentTouchTime = eventTime;
+                    if (mDeferTouchProcess) {
+                        break;
+                    }
+                    if (firstMove && !inFullScreenMode()) {
+                        mPrivateHandler.sendMessageDelayed(mPrivateHandler
+                                .obtainMessage(PREVENT_DEFAULT_TIMEOUT,
+                                        action, 0), TAP_TIMEOUT);
+                    }
+                }
+                if (mTouchMode == TOUCH_DONE_MODE
+                        || mPreventDefault == PREVENT_DEFAULT_YES) {
+                    // no dragging during scroll zoom animation, or when prevent
+                    // default is yes
+                    break;
+                }
+                if (mVelocityTracker == null) {
+                    Log.e(LOGTAG, "Got null mVelocityTracker when "
+                            + "mPreventDefault = " + mPreventDefault
+                            + " mDeferTouchProcess = " + mDeferTouchProcess
+                            + " mTouchMode = " + mTouchMode);
+                } else {
+                    mVelocityTracker.addMovement(ev);
+                }
+
+                if (mTouchMode != TOUCH_DRAG_MODE &&
+                        mTouchMode != TOUCH_DRAG_LAYER_MODE) {
+
+                    if (!mConfirmMove) {
+                        break;
+                    }
+
+                    if (mPreventDefault == PREVENT_DEFAULT_MAYBE_YES
+                            || mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) {
+                        // track mLastTouchTime as we may need to do fling at
+                        // ACTION_UP
+                        mLastTouchTime = eventTime;
+                        break;
+                    }
+
+                    // Only lock dragging to one axis if we don't have a scale in progress.
+                    // Scaling implies free-roaming movement. Note this is only ever a question
+                    // if mZoomManager.supportsPanDuringZoom() is true.
+                    final ScaleGestureDetector detector =
+                      mZoomManager.getMultiTouchGestureDetector();
+                    mAverageAngle = calculateDragAngle(deltaX, deltaY);
+                    if (detector == null || !detector.isInProgress()) {
+                        // if it starts nearly horizontal or vertical, enforce it
+                        if (mAverageAngle < HSLOPE_TO_START_SNAP) {
+                            mSnapScrollMode = SNAP_X;
+                            mSnapPositive = deltaX > 0;
+                            mAverageAngle = ANGLE_HORIZ;
+                        } else if (mAverageAngle > VSLOPE_TO_START_SNAP) {
+                            mSnapScrollMode = SNAP_Y;
+                            mSnapPositive = deltaY > 0;
+                            mAverageAngle = ANGLE_VERT;
+                        }
+                    }
+
+                    mTouchMode = TOUCH_DRAG_MODE;
+                    mLastTouchX = x;
+                    mLastTouchY = y;
+                    deltaX = 0;
+                    deltaY = 0;
+
+                    startScrollingLayer(x, y);
+                    startDrag();
+                }
+
+                // do pan
+                boolean done = false;
+                boolean keepScrollBarsVisible = false;
+                if (deltaX == 0 && deltaY == 0) {
+                    keepScrollBarsVisible = done = true;
+                } else {
+                    mAverageAngle +=
+                        (calculateDragAngle(deltaX, deltaY) - mAverageAngle)
+                        / MMA_WEIGHT_N;
+                    if (mSnapScrollMode != SNAP_NONE) {
+                        if (mSnapScrollMode == SNAP_Y) {
+                            // radical change means getting out of snap mode
+                            if (mAverageAngle < VSLOPE_TO_BREAK_SNAP) {
+                                mSnapScrollMode = SNAP_NONE;
+                            }
+                        }
+                        if (mSnapScrollMode == SNAP_X) {
+                            // radical change means getting out of snap mode
+                            if (mAverageAngle > HSLOPE_TO_BREAK_SNAP) {
+                                mSnapScrollMode = SNAP_NONE;
+                            }
+                        }
+                    } else {
+                        if (mAverageAngle < HSLOPE_TO_START_SNAP) {
+                            mSnapScrollMode = SNAP_X;
+                            mSnapPositive = deltaX > 0;
+                            mAverageAngle = (mAverageAngle + ANGLE_HORIZ) / 2;
+                        } else if (mAverageAngle > VSLOPE_TO_START_SNAP) {
+                            mSnapScrollMode = SNAP_Y;
+                            mSnapPositive = deltaY > 0;
+                            mAverageAngle = (mAverageAngle + ANGLE_VERT) / 2;
+                        }
+                    }
+                    if (mSnapScrollMode != SNAP_NONE) {
+                        if ((mSnapScrollMode & SNAP_X) == SNAP_X) {
+                            deltaY = 0;
+                        } else {
+                            deltaX = 0;
+                        }
+                    }
+                    mLastTouchX = x;
+                    mLastTouchY = y;
+
+                    if (deltaX * deltaX + deltaY * deltaY > mTouchSlopSquare) {
+                        mHeldMotionless = MOTIONLESS_FALSE;
+                        nativeSetIsScrolling(true);
+                    } else {
+                        mHeldMotionless = MOTIONLESS_TRUE;
+                        nativeSetIsScrolling(false);
+                        keepScrollBarsVisible = true;
+                    }
+
+                    mLastTouchTime = eventTime;
+                }
+
+                doDrag(deltaX, deltaY);
+
+                // Turn off scrollbars when dragging a layer.
+                if (keepScrollBarsVisible &&
+                        mTouchMode != TOUCH_DRAG_LAYER_MODE) {
+                    if (mHeldMotionless != MOTIONLESS_TRUE) {
+                        mHeldMotionless = MOTIONLESS_TRUE;
+                        invalidate();
+                    }
+                    // keep the scrollbar on the screen even there is no scroll
+                    awakenScrollBars(ViewConfiguration.getScrollDefaultDelay(),
+                            false);
+                    // Post a message so that we'll keep them alive while we're not scrolling.
+                    mPrivateHandler.sendMessageDelayed(mPrivateHandler
+                            .obtainMessage(AWAKEN_SCROLL_BARS),
+                            ViewConfiguration.getScrollDefaultDelay());
+                    // return false to indicate that we can't pan out of the
+                    // view space
+                    return !done;
+                } else {
+                    mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS);
+                }
+                break;
+            }
+            case MotionEvent.ACTION_UP: {
+                if (!isFocused()) requestFocus();
+                // pass the touch events from UI thread to WebCore thread
+                if (shouldForwardTouchEvent()) {
+                    TouchEventData ted = new TouchEventData();
+                    ted.mIds = new int[1];
+                    ted.mIds[0] = ev.getPointerId(0);
+                    ted.mAction = action;
+                    ted.mPoints = new Point[1];
+                    ted.mPoints[0] = new Point(contentX, contentY);
+                    ted.mPointsInView = new Point[1];
+                    ted.mPointsInView[0] = new Point(x, y);
+                    ted.mMetaState = ev.getMetaState();
+                    ted.mReprocess = mDeferTouchProcess;
+                    ted.mNativeLayer = mCurrentScrollingLayerId;
+                    ted.mNativeLayerRect.set(mScrollingLayerRect);
+                    ted.mSequence = mTouchEventQueue.nextTouchSequence();
+                    mTouchEventQueue.preQueueTouchEventData(ted);
+                    mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted);
+                }
+                mLastTouchUpTime = eventTime;
+                if (mSentAutoScrollMessage) {
+                    mAutoScrollX = mAutoScrollY = 0;
+                }
+                switch (mTouchMode) {
+                    case TOUCH_DOUBLE_TAP_MODE: // double tap
+                        mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
+                        mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+                        if (inFullScreenMode() || mDeferTouchProcess) {
+                            TouchEventData ted = new TouchEventData();
+                            ted.mIds = new int[1];
+                            ted.mIds[0] = ev.getPointerId(0);
+                            ted.mAction = WebViewCore.ACTION_DOUBLETAP;
+                            ted.mPoints = new Point[1];
+                            ted.mPoints[0] = new Point(contentX, contentY);
+                            ted.mPointsInView = new Point[1];
+                            ted.mPointsInView[0] = new Point(x, y);
+                            ted.mMetaState = ev.getMetaState();
+                            ted.mReprocess = mDeferTouchProcess;
+                            ted.mNativeLayer = nativeScrollableLayer(
+                                    contentX, contentY,
+                                    ted.mNativeLayerRect, null);
+                            ted.mSequence = mTouchEventQueue.nextTouchSequence();
+                            mTouchEventQueue.preQueueTouchEventData(ted);
+                            mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted);
+                        } else if (mPreventDefault != PREVENT_DEFAULT_YES){
+                            mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY);
+                            mTouchMode = TOUCH_DONE_MODE;
+                        }
+                        break;
+                    case TOUCH_INIT_MODE: // tap
+                    case TOUCH_SHORTPRESS_START_MODE:
+                    case TOUCH_SHORTPRESS_MODE:
+                        mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
+                        mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+                        if (mConfirmMove) {
+                            Log.w(LOGTAG, "Miss a drag as we are waiting for" +
+                                    " WebCore's response for touch down.");
+                            if (mPreventDefault != PREVENT_DEFAULT_YES
+                                    && (computeMaxScrollX() > 0
+                                            || computeMaxScrollY() > 0)) {
+                                // If the user has performed a very quick touch
+                                // sequence it is possible that we may get here
+                                // before WebCore has had a chance to process the events.
+                                // In this case, any call to preventDefault in the
+                                // JS touch handler will not have been executed yet.
+                                // Hence we will see both the UI (now) and WebCore
+                                // (when context switches) handling the event,
+                                // regardless of whether the web developer actually
+                                // doeses preventDefault in their touch handler. This
+                                // is the nature of our asynchronous touch model.
+
+                                // we will not rewrite drag code here, but we
+                                // will try fling if it applies.
+                                WebViewCore.reducePriority();
+                                // to get better performance, pause updating the
+                                // picture
+                                WebViewCore.pauseUpdatePicture(mWebViewCore);
+                                // fall through to TOUCH_DRAG_MODE
+                            } else {
+                                // WebKit may consume the touch event and modify
+                                // DOM. drawContentPicture() will be called with
+                                // animateSroll as true for better performance.
+                                // Force redraw in high-quality.
+                                invalidate();
+                                break;
+                            }
+                        } else {
+                            if (mSelectingText) {
+                                // tapping on selection or controls does nothing
+                                if (!mSelectionStarted) {
+                                    selectionDone();
+                                }
+                                break;
+                            }
+                            // only trigger double tap if the WebView is
+                            // scalable
+                            if (mTouchMode == TOUCH_INIT_MODE
+                                    && (canZoomIn() || canZoomOut())) {
+                                mPrivateHandler.sendEmptyMessageDelayed(
+                                        RELEASE_SINGLE_TAP, ViewConfiguration
+                                                .getDoubleTapTimeout());
+                            } else {
+                                doShortPress();
+                            }
+                            break;
+                        }
+                    case TOUCH_DRAG_MODE:
+                    case TOUCH_DRAG_LAYER_MODE:
+                        mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS);
+                        mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS);
+                        // if the user waits a while w/o moving before the
+                        // up, we don't want to do a fling
+                        if (eventTime - mLastTouchTime <= MIN_FLING_TIME) {
+                            if (mVelocityTracker == null) {
+                                Log.e(LOGTAG, "Got null mVelocityTracker when "
+                                        + "mPreventDefault = "
+                                        + mPreventDefault
+                                        + " mDeferTouchProcess = "
+                                        + mDeferTouchProcess);
+                            } else {
+                                mVelocityTracker.addMovement(ev);
+                            }
+                            // set to MOTIONLESS_IGNORE so that it won't keep
+                            // removing and sending message in
+                            // drawCoreAndCursorRing()
+                            mHeldMotionless = MOTIONLESS_IGNORE;
+                            doFling();
+                            break;
+                        } else {
+                            if (mScroller.springBack(mScrollX, mScrollY, 0,
+                                    computeMaxScrollX(), 0,
+                                    computeMaxScrollY())) {
+                                invalidate();
+                            }
+                        }
+                        // redraw in high-quality, as we're done dragging
+                        mHeldMotionless = MOTIONLESS_TRUE;
+                        invalidate();
+                        // fall through
+                    case TOUCH_DRAG_START_MODE:
+                        // TOUCH_DRAG_START_MODE should not happen for the real
+                        // device as we almost certain will get a MOVE. But this
+                        // is possible on emulator.
+                        mLastVelocity = 0;
+                        WebViewCore.resumePriority();
+                        if (!mSelectingText) {
+                            WebViewCore.resumeUpdatePicture(mWebViewCore);
+                        }
+                        break;
+                }
+                stopTouch();
+                break;
+            }
+            case MotionEvent.ACTION_CANCEL: {
+                if (mTouchMode == TOUCH_DRAG_MODE) {
+                    mScroller.springBack(mScrollX, mScrollY, 0,
+                            computeMaxScrollX(), 0, computeMaxScrollY());
+                    invalidate();
+                }
+                cancelWebCoreTouchEvent(contentX, contentY, false);
+                cancelTouch();
+                break;
+            }
+        }
+        return true;
+    }
+
+    private void passMultiTouchToWebKit(MotionEvent ev, long sequence) {
+        TouchEventData ted = new TouchEventData();
+        ted.mAction = ev.getActionMasked();
+        final int count = ev.getPointerCount();
+        ted.mIds = new int[count];
+        ted.mPoints = new Point[count];
+        ted.mPointsInView = new Point[count];
+        for (int c = 0; c < count; c++) {
+            ted.mIds[c] = ev.getPointerId(c);
+            int x = viewToContentX((int) ev.getX(c) + mScrollX);
+            int y = viewToContentY((int) ev.getY(c) + mScrollY);
+            ted.mPoints[c] = new Point(x, y);
+            ted.mPointsInView[c] = new Point((int) ev.getX(c), (int) ev.getY(c));
+        }
+        if (ted.mAction == MotionEvent.ACTION_POINTER_DOWN
+            || ted.mAction == MotionEvent.ACTION_POINTER_UP) {
+            ted.mActionIndex = ev.getActionIndex();
+        }
+        ted.mMetaState = ev.getMetaState();
+        ted.mReprocess = true;
+        ted.mMotionEvent = MotionEvent.obtain(ev);
+        ted.mSequence = sequence;
+        mTouchEventQueue.preQueueTouchEventData(ted);
+        mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted);
+        cancelLongPress();
+        mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+    }
+
+    void handleMultiTouchInWebView(MotionEvent ev) {
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "multi-touch: " + ev + " at " + ev.getEventTime()
+                + " mTouchMode=" + mTouchMode
+                + " numPointers=" + ev.getPointerCount()
+                + " scrolloffset=(" + mScrollX + "," + mScrollY + ")");
+        }
+
+        final ScaleGestureDetector detector =
+            mZoomManager.getMultiTouchGestureDetector();
+
+        // A few apps use WebView but don't instantiate gesture detector.
+        // We don't need to support multi touch for them.
+        if (detector == null) return;
+
+        float x = ev.getX();
+        float y = ev.getY();
+
+        if (mPreventDefault != PREVENT_DEFAULT_YES) {
+            detector.onTouchEvent(ev);
+
+            if (detector.isInProgress()) {
+                if (DebugFlags.WEB_VIEW) {
+                    Log.v(LOGTAG, "detector is in progress");
+                }
+                mLastTouchTime = ev.getEventTime();
+                x = detector.getFocusX();
+                y = detector.getFocusY();
+
+                cancelLongPress();
+                mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+                if (!mZoomManager.supportsPanDuringZoom()) {
+                    return;
+                }
+                mTouchMode = TOUCH_DRAG_MODE;
+                if (mVelocityTracker == null) {
+                    mVelocityTracker = VelocityTracker.obtain();
+                }
+            }
+        }
+
+        int action = ev.getActionMasked();
+        if (action == MotionEvent.ACTION_POINTER_DOWN) {
+            cancelTouch();
+            action = MotionEvent.ACTION_DOWN;
+        } else if (action == MotionEvent.ACTION_POINTER_UP && ev.getPointerCount() >= 2) {
+            // set mLastTouchX/Y to the remaining points for multi-touch.
+            mLastTouchX = Math.round(x);
+            mLastTouchY = Math.round(y);
+        } else if (action == MotionEvent.ACTION_MOVE) {
+            // negative x or y indicate it is on the edge, skip it.
+            if (x < 0 || y < 0) {
+                return;
+            }
+        }
+
+        handleTouchEventCommon(ev, action, Math.round(x), Math.round(y));
+    }
+
+    private void cancelWebCoreTouchEvent(int x, int y, boolean removeEvents) {
+        if (shouldForwardTouchEvent()) {
+            if (removeEvents) {
+                mWebViewCore.removeMessages(EventHub.TOUCH_EVENT);
+            }
+            TouchEventData ted = new TouchEventData();
+            ted.mIds = new int[1];
+            ted.mIds[0] = 0;
+            ted.mPoints = new Point[1];
+            ted.mPoints[0] = new Point(x, y);
+            ted.mPointsInView = new Point[1];
+            int viewX = contentToViewX(x) - mScrollX;
+            int viewY = contentToViewY(y) - mScrollY;
+            ted.mPointsInView[0] = new Point(viewX, viewY);
+            ted.mAction = MotionEvent.ACTION_CANCEL;
+            ted.mNativeLayer = nativeScrollableLayer(
+                    x, y, ted.mNativeLayerRect, null);
+            ted.mSequence = mTouchEventQueue.nextTouchSequence();
+            mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted);
+            mPreventDefault = PREVENT_DEFAULT_IGNORE;
+
+            if (removeEvents) {
+                // Mark this after sending the message above; we should
+                // be willing to ignore the cancel event that we just sent.
+                mTouchEventQueue.ignoreCurrentlyMissingEvents();
+            }
+        }
+    }
+
+    private void startTouch(float x, float y, long eventTime) {
+        // Remember where the motion event started
+        mStartTouchX = mLastTouchX = Math.round(x);
+        mStartTouchY = mLastTouchY = Math.round(y);
+        mLastTouchTime = eventTime;
+        mVelocityTracker = VelocityTracker.obtain();
+        mSnapScrollMode = SNAP_NONE;
+        mPrivateHandler.sendEmptyMessageDelayed(UPDATE_SELECTION,
+                ViewConfiguration.getTapTimeout());
+    }
+
+    private void startDrag() {
+        WebViewCore.reducePriority();
+        // to get better performance, pause updating the picture
+        WebViewCore.pauseUpdatePicture(mWebViewCore);
+        nativeSetIsScrolling(true);
+
+        if (!mDragFromTextInput) {
+            nativeHideCursor();
+        }
+
+        if (mHorizontalScrollBarMode != SCROLLBAR_ALWAYSOFF
+                || mVerticalScrollBarMode != SCROLLBAR_ALWAYSOFF) {
+            mZoomManager.invokeZoomPicker();
+        }
+    }
+
+    private void doDrag(int deltaX, int deltaY) {
+        if ((deltaX | deltaY) != 0) {
+            int oldX = mScrollX;
+            int oldY = mScrollY;
+            int rangeX = computeMaxScrollX();
+            int rangeY = computeMaxScrollY();
+            // Check for the original scrolling layer in case we change
+            // directions.  mTouchMode might be TOUCH_DRAG_MODE if we have
+            // reached the edge of a layer but mScrollingLayer will be non-zero
+            // if we initiated the drag on a layer.
+            if (mCurrentScrollingLayerId != 0) {
+                final int contentX = viewToContentDimension(deltaX);
+                final int contentY = viewToContentDimension(deltaY);
+
+                // Check the scrolling bounds to see if we will actually do any
+                // scrolling.  The rectangle is in document coordinates.
+                final int maxX = mScrollingLayerRect.right;
+                final int maxY = mScrollingLayerRect.bottom;
+                final int resultX = Math.max(0,
+                        Math.min(mScrollingLayerRect.left + contentX, maxX));
+                final int resultY = Math.max(0,
+                        Math.min(mScrollingLayerRect.top + contentY, maxY));
+
+                if (resultX != mScrollingLayerRect.left ||
+                        resultY != mScrollingLayerRect.top) {
+                    // In case we switched to dragging the page.
+                    mTouchMode = TOUCH_DRAG_LAYER_MODE;
+                    deltaX = contentX;
+                    deltaY = contentY;
+                    oldX = mScrollingLayerRect.left;
+                    oldY = mScrollingLayerRect.top;
+                    rangeX = maxX;
+                    rangeY = maxY;
+                } else {
+                    // Scroll the main page if we are not going to scroll the
+                    // layer.  This does not reset mScrollingLayer in case the
+                    // user changes directions and the layer can scroll the
+                    // other way.
+                    mTouchMode = TOUCH_DRAG_MODE;
+                }
+            }
+
+            if (mOverScrollGlow != null) {
+                mOverScrollGlow.setOverScrollDeltas(deltaX, deltaY);
+            }
+
+            overScrollBy(deltaX, deltaY, oldX, oldY,
+                    rangeX, rangeY,
+                    mOverscrollDistance, mOverscrollDistance, true);
+            if (mOverScrollGlow != null && mOverScrollGlow.isAnimating()) {
+                invalidate();
+            }
+        }
+        mZoomManager.keepZoomPickerVisible();
+    }
+
+    private void stopTouch() {
+        if (mScroller.isFinished() && !mSelectingText
+                && (mTouchMode == TOUCH_DRAG_MODE || mTouchMode == TOUCH_DRAG_LAYER_MODE)) {
+            WebViewCore.resumePriority();
+            WebViewCore.resumeUpdatePicture(mWebViewCore);
+            nativeSetIsScrolling(false);
+        }
+
+        // we also use mVelocityTracker == null to tell us that we are
+        // not "moving around", so we can take the slower/prettier
+        // mode in the drawing code
+        if (mVelocityTracker != null) {
+            mVelocityTracker.recycle();
+            mVelocityTracker = null;
+        }
+
+        // Release any pulled glows
+        if (mOverScrollGlow != null) {
+            mOverScrollGlow.releaseAll();
+        }
+
+        if (mSelectingText) {
+            mSelectionStarted = false;
+            syncSelectionCursors();
+            if (mIsCaretSelection) {
+                resetCaretTimer();
+                showPasteWindow();
+            }
+            invalidate();
+        }
+    }
+
+    private void cancelTouch() {
+        // we also use mVelocityTracker == null to tell us that we are
+        // not "moving around", so we can take the slower/prettier
+        // mode in the drawing code
+        if (mVelocityTracker != null) {
+            mVelocityTracker.recycle();
+            mVelocityTracker = null;
+        }
+
+        if ((mTouchMode == TOUCH_DRAG_MODE
+                || mTouchMode == TOUCH_DRAG_LAYER_MODE) && !mSelectingText) {
+            WebViewCore.resumePriority();
+            WebViewCore.resumeUpdatePicture(mWebViewCore);
+            nativeSetIsScrolling(false);
+        }
+        mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
+        mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+        mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS);
+        mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS);
+        if (sDisableNavcache) {
+            removeTouchHighlight();
+        }
+        mHeldMotionless = MOTIONLESS_TRUE;
+        mTouchMode = TOUCH_DONE_MODE;
+        nativeHideCursor();
+    }
+
+    @Override
+    public boolean onGenericMotionEvent(MotionEvent event) {
+        if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
+            switch (event.getAction()) {
+                case MotionEvent.ACTION_SCROLL: {
+                    final float vscroll;
+                    final float hscroll;
+                    if ((event.getMetaState() & KeyEvent.META_SHIFT_ON) != 0) {
+                        vscroll = 0;
+                        hscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL);
+                    } else {
+                        vscroll = -event.getAxisValue(MotionEvent.AXIS_VSCROLL);
+                        hscroll = event.getAxisValue(MotionEvent.AXIS_HSCROLL);
+                    }
+                    if (hscroll != 0 || vscroll != 0) {
+                        final int vdelta = (int) (vscroll * getVerticalScrollFactor());
+                        final int hdelta = (int) (hscroll * getHorizontalScrollFactor());
+                        if (pinScrollBy(hdelta, vdelta, false, 0)) {
+                            return true;
+                        }
+                    }
+                }
+            }
+        }
+        return super.onGenericMotionEvent(event);
+    }
+
+    private long mTrackballFirstTime = 0;
+    private long mTrackballLastTime = 0;
+    private float mTrackballRemainsX = 0.0f;
+    private float mTrackballRemainsY = 0.0f;
+    private int mTrackballXMove = 0;
+    private int mTrackballYMove = 0;
+    private boolean mSelectingText = false;
+    private boolean mSelectionStarted = false;
+    private static final int TRACKBALL_KEY_TIMEOUT = 1000;
+    private static final int TRACKBALL_TIMEOUT = 200;
+    private static final int TRACKBALL_WAIT = 100;
+    private static final int TRACKBALL_SCALE = 400;
+    private static final int TRACKBALL_SCROLL_COUNT = 5;
+    private static final int TRACKBALL_MOVE_COUNT = 10;
+    private static final int TRACKBALL_MULTIPLIER = 3;
+    private static final int SELECT_CURSOR_OFFSET = 16;
+    private static final int SELECT_SCROLL = 5;
+    private int mSelectX = 0;
+    private int mSelectY = 0;
+    private boolean mFocusSizeChanged = false;
+    private boolean mTrackballDown = false;
+    private long mTrackballUpTime = 0;
+    private long mLastCursorTime = 0;
+    private Rect mLastCursorBounds;
+
+    // Set by default; BrowserActivity clears to interpret trackball data
+    // directly for movement. Currently, the framework only passes
+    // arrow key events, not trackball events, from one child to the next
+    private boolean mMapTrackballToArrowKeys = true;
+
+    private DrawData mDelaySetPicture;
+    private DrawData mLoadedPicture;
+
+    public void setMapTrackballToArrowKeys(boolean setMap) {
+        checkThread();
+        mMapTrackballToArrowKeys = setMap;
+    }
+
+    void resetTrackballTime() {
+        mTrackballLastTime = 0;
+    }
+
+    @Override
+    public boolean onTrackballEvent(MotionEvent ev) {
+        long time = ev.getEventTime();
+        if ((ev.getMetaState() & KeyEvent.META_ALT_ON) != 0) {
+            if (ev.getY() > 0) pageDown(true);
+            if (ev.getY() < 0) pageUp(true);
+            return true;
+        }
+        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+            if (mSelectingText) {
+                return true; // discard press if copy in progress
+            }
+            mTrackballDown = true;
+            if (mNativeClass == 0) {
+                return false;
+            }
+            if (time - mLastCursorTime <= TRACKBALL_TIMEOUT
+                    && !mLastCursorBounds.equals(cursorRingBounds())) {
+                nativeSelectBestAt(mLastCursorBounds);
+            }
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "onTrackballEvent down ev=" + ev
+                        + " time=" + time
+                        + " mLastCursorTime=" + mLastCursorTime);
+            }
+            if (isInTouchMode()) requestFocusFromTouch();
+            return false; // let common code in onKeyDown at it
+        }
+        if (ev.getAction() == MotionEvent.ACTION_UP) {
+            // LONG_PRESS_CENTER is set in common onKeyDown
+            mPrivateHandler.removeMessages(LONG_PRESS_CENTER);
+            mTrackballDown = false;
+            mTrackballUpTime = time;
+            if (mSelectingText) {
+                copySelection();
+                selectionDone();
+                return true; // discard press if copy in progress
+            }
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "onTrackballEvent up ev=" + ev
+                        + " time=" + time
+                );
+            }
+            return false; // let common code in onKeyUp at it
+        }
+        if ((mMapTrackballToArrowKeys && (ev.getMetaState() & KeyEvent.META_SHIFT_ON) == 0) ||
+                AccessibilityManager.getInstance(mContext).isEnabled()) {
+            if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit");
+            return false;
+        }
+        if (mTrackballDown) {
+            if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit");
+            return true; // discard move if trackball is down
+        }
+        if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) {
+            if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit");
+            return true;
+        }
+        // TODO: alternatively we can do panning as touch does
+        switchOutDrawHistory();
+        if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) {
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "onTrackballEvent time="
+                        + time + " last=" + mTrackballLastTime);
+            }
+            mTrackballFirstTime = time;
+            mTrackballXMove = mTrackballYMove = 0;
+        }
+        mTrackballLastTime = time;
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time);
+        }
+        mTrackballRemainsX += ev.getX();
+        mTrackballRemainsY += ev.getY();
+        doTrackball(time, ev.getMetaState());
+        return true;
+    }
+
+    private int scaleTrackballX(float xRate, int width) {
+        int xMove = (int) (xRate / TRACKBALL_SCALE * width);
+        int nextXMove = xMove;
+        if (xMove > 0) {
+            if (xMove > mTrackballXMove) {
+                xMove -= mTrackballXMove;
+            }
+        } else if (xMove < mTrackballXMove) {
+            xMove -= mTrackballXMove;
+        }
+        mTrackballXMove = nextXMove;
+        return xMove;
+    }
+
+    private int scaleTrackballY(float yRate, int height) {
+        int yMove = (int) (yRate / TRACKBALL_SCALE * height);
+        int nextYMove = yMove;
+        if (yMove > 0) {
+            if (yMove > mTrackballYMove) {
+                yMove -= mTrackballYMove;
+            }
+        } else if (yMove < mTrackballYMove) {
+            yMove -= mTrackballYMove;
+        }
+        mTrackballYMove = nextYMove;
+        return yMove;
+    }
+
+    private int keyCodeToSoundsEffect(int keyCode) {
+        switch(keyCode) {
+            case KeyEvent.KEYCODE_DPAD_UP:
+                return SoundEffectConstants.NAVIGATION_UP;
+            case KeyEvent.KEYCODE_DPAD_RIGHT:
+                return SoundEffectConstants.NAVIGATION_RIGHT;
+            case KeyEvent.KEYCODE_DPAD_DOWN:
+                return SoundEffectConstants.NAVIGATION_DOWN;
+            case KeyEvent.KEYCODE_DPAD_LEFT:
+                return SoundEffectConstants.NAVIGATION_LEFT;
+        }
+        throw new IllegalArgumentException("keyCode must be one of " +
+                "{KEYCODE_DPAD_UP, KEYCODE_DPAD_RIGHT, KEYCODE_DPAD_DOWN, " +
+                "KEYCODE_DPAD_LEFT}.");
+    }
+
+    private void doTrackball(long time, int metaState) {
+        int elapsed = (int) (mTrackballLastTime - mTrackballFirstTime);
+        if (elapsed == 0) {
+            elapsed = TRACKBALL_TIMEOUT;
+        }
+        float xRate = mTrackballRemainsX * 1000 / elapsed;
+        float yRate = mTrackballRemainsY * 1000 / elapsed;
+        int viewWidth = getViewWidth();
+        int viewHeight = getViewHeight();
+        float ax = Math.abs(xRate);
+        float ay = Math.abs(yRate);
+        float maxA = Math.max(ax, ay);
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "doTrackball elapsed=" + elapsed
+                    + " xRate=" + xRate
+                    + " yRate=" + yRate
+                    + " mTrackballRemainsX=" + mTrackballRemainsX
+                    + " mTrackballRemainsY=" + mTrackballRemainsY);
+        }
+        int width = mContentWidth - viewWidth;
+        int height = mContentHeight - viewHeight;
+        if (width < 0) width = 0;
+        if (height < 0) height = 0;
+        ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER);
+        ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER);
+        maxA = Math.max(ax, ay);
+        int count = Math.max(0, (int) maxA);
+        int oldScrollX = mScrollX;
+        int oldScrollY = mScrollY;
+        if (count > 0) {
+            int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ?
+                    KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN :
+                    mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT :
+                    KeyEvent.KEYCODE_DPAD_RIGHT;
+            count = Math.min(count, TRACKBALL_MOVE_COUNT);
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode
+                        + " count=" + count
+                        + " mTrackballRemainsX=" + mTrackballRemainsX
+                        + " mTrackballRemainsY=" + mTrackballRemainsY);
+            }
+            if (mNativeClass != 0 && nativePageShouldHandleShiftAndArrows()) {
+                for (int i = 0; i < count; i++) {
+                    letPageHandleNavKey(selectKeyCode, time, true, metaState);
+                }
+                letPageHandleNavKey(selectKeyCode, time, false, metaState);
+            } else if (navHandledKey(selectKeyCode, count, false, time)) {
+                playSoundEffect(keyCodeToSoundsEffect(selectKeyCode));
+            }
+            mTrackballRemainsX = mTrackballRemainsY = 0;
+        }
+        if (count >= TRACKBALL_SCROLL_COUNT) {
+            int xMove = scaleTrackballX(xRate, width);
+            int yMove = scaleTrackballY(yRate, height);
+            if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "doTrackball pinScrollBy"
+                        + " count=" + count
+                        + " xMove=" + xMove + " yMove=" + yMove
+                        + " mScrollX-oldScrollX=" + (mScrollX-oldScrollX)
+                        + " mScrollY-oldScrollY=" + (mScrollY-oldScrollY)
+                        );
+            }
+            if (Math.abs(mScrollX - oldScrollX) > Math.abs(xMove)) {
+                xMove = 0;
+            }
+            if (Math.abs(mScrollY - oldScrollY) > Math.abs(yMove)) {
+                yMove = 0;
+            }
+            if (xMove != 0 || yMove != 0) {
+                pinScrollBy(xMove, yMove, true, 0);
+            }
+        }
+    }
+
+    /**
+     * Compute the maximum horizontal scroll position. Used by {@link OverScrollGlow}.
+     * @return Maximum horizontal scroll position within real content
+     */
+    int computeMaxScrollX() {
+        return Math.max(computeRealHorizontalScrollRange() - getViewWidth(), 0);
+    }
+
+    /**
+     * Compute the maximum vertical scroll position. Used by {@link OverScrollGlow}.
+     * @return Maximum vertical scroll position within real content
+     */
+    int computeMaxScrollY() {
+        return Math.max(computeRealVerticalScrollRange() + getTitleHeight()
+                - getViewHeightWithTitle(), 0);
+    }
+
+    boolean updateScrollCoordinates(int x, int y) {
+        int oldX = mScrollX;
+        int oldY = mScrollY;
+        mScrollX = x;
+        mScrollY = y;
+        if (oldX != mScrollX || oldY != mScrollY) {
+            onScrollChanged(mScrollX, mScrollY, oldX, oldY);
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public void flingScroll(int vx, int vy) {
+        checkThread();
+        mScroller.fling(mScrollX, mScrollY, vx, vy, 0, computeMaxScrollX(), 0,
+                computeMaxScrollY(), mOverflingDistance, mOverflingDistance);
+        invalidate();
+    }
+
+    private void doFling() {
+        if (mVelocityTracker == null) {
+            return;
+        }
+        int maxX = computeMaxScrollX();
+        int maxY = computeMaxScrollY();
+
+        mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling);
+        int vx = (int) mVelocityTracker.getXVelocity();
+        int vy = (int) mVelocityTracker.getYVelocity();
+
+        int scrollX = mScrollX;
+        int scrollY = mScrollY;
+        int overscrollDistance = mOverscrollDistance;
+        int overflingDistance = mOverflingDistance;
+
+        // Use the layer's scroll data if applicable.
+        if (mTouchMode == TOUCH_DRAG_LAYER_MODE) {
+            scrollX = mScrollingLayerRect.left;
+            scrollY = mScrollingLayerRect.top;
+            maxX = mScrollingLayerRect.right;
+            maxY = mScrollingLayerRect.bottom;
+            // No overscrolling for layers.
+            overscrollDistance = overflingDistance = 0;
+        }
+
+        if (mSnapScrollMode != SNAP_NONE) {
+            if ((mSnapScrollMode & SNAP_X) == SNAP_X) {
+                vy = 0;
+            } else {
+                vx = 0;
+            }
+        }
+        if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) {
+            WebViewCore.resumePriority();
+            if (!mSelectingText) {
+                WebViewCore.resumeUpdatePicture(mWebViewCore);
+            }
+            if (mScroller.springBack(scrollX, scrollY, 0, maxX, 0, maxY)) {
+                invalidate();
+            }
+            return;
+        }
+        float currentVelocity = mScroller.getCurrVelocity();
+        float velocity = (float) Math.hypot(vx, vy);
+        if (mLastVelocity > 0 && currentVelocity > 0 && velocity
+                > mLastVelocity * MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION) {
+            float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX)
+                    - Math.atan2(vy, vx)));
+            final float circle = (float) (Math.PI) * 2.0f;
+            if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) {
+                vx += currentVelocity * mLastVelX / mLastVelocity;
+                vy += currentVelocity * mLastVelY / mLastVelocity;
+                velocity = (float) Math.hypot(vx, vy);
+                if (DebugFlags.WEB_VIEW) {
+                    Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy);
+                }
+            } else if (DebugFlags.WEB_VIEW) {
+                Log.v(LOGTAG, "doFling missed " + deltaR / circle);
+            }
+        } else if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "doFling start last=" + mLastVelocity
+                    + " current=" + currentVelocity
+                    + " vx=" + vx + " vy=" + vy
+                    + " maxX=" + maxX + " maxY=" + maxY
+                    + " scrollX=" + scrollX + " scrollY=" + scrollY
+                    + " layer=" + mCurrentScrollingLayerId);
+        }
+
+        // Allow sloppy flings without overscrolling at the edges.
+        if ((scrollX == 0 || scrollX == maxX) && Math.abs(vx) < Math.abs(vy)) {
+            vx = 0;
+        }
+        if ((scrollY == 0 || scrollY == maxY) && Math.abs(vy) < Math.abs(vx)) {
+            vy = 0;
+        }
+
+        if (overscrollDistance < overflingDistance) {
+            if ((vx > 0 && scrollX == -overscrollDistance) ||
+                    (vx < 0 && scrollX == maxX + overscrollDistance)) {
+                vx = 0;
+            }
+            if ((vy > 0 && scrollY == -overscrollDistance) ||
+                    (vy < 0 && scrollY == maxY + overscrollDistance)) {
+                vy = 0;
+            }
+        }
+
+        mLastVelX = vx;
+        mLastVelY = vy;
+        mLastVelocity = velocity;
+
+        // no horizontal overscroll if the content just fits
+        mScroller.fling(scrollX, scrollY, -vx, -vy, 0, maxX, 0, maxY,
+                maxX == 0 ? 0 : overflingDistance, overflingDistance);
+        // Duration is calculated based on velocity. With range boundaries and overscroll
+        // we may not know how long the final animation will take. (Hence the deprecation
+        // warning on the call below.) It's not a big deal for scroll bars but if webcore
+        // resumes during this effect we will take a performance hit. See computeScroll;
+        // we resume webcore there when the animation is finished.
+        final int time = mScroller.getDuration();
+
+        // Suppress scrollbars for layer scrolling.
+        if (mTouchMode != TOUCH_DRAG_LAYER_MODE) {
+            awakenScrollBars(time);
+        }
+
+        invalidate();
+    }
+
+    /**
+     * Returns a view containing zoom controls i.e. +/- buttons. The caller is
+     * in charge of installing this view to the view hierarchy. This view will
+     * become visible when the user starts scrolling via touch and fade away if
+     * the user does not interact with it.
+     * <p/>
+     * API version 3 introduces a built-in zoom mechanism that is shown
+     * automatically by the MapView. This is the preferred approach for
+     * showing the zoom UI.
+     *
+     * @deprecated The built-in zoom mechanism is preferred, see
+     *             {@link WebSettings#setBuiltInZoomControls(boolean)}.
+     */
+    @Deprecated
+    public View getZoomControls() {
+        checkThread();
+        if (!getSettings().supportZoom()) {
+            Log.w(LOGTAG, "This WebView doesn't support zoom.");
+            return null;
+        }
+        return mZoomManager.getExternalZoomPicker();
+    }
+
+    void dismissZoomControl() {
+        mZoomManager.dismissZoomPicker();
+    }
+
+    float getDefaultZoomScale() {
+        return mZoomManager.getDefaultScale();
+    }
+
+    /**
+     * Return the overview scale of the WebView
+     * @return The overview scale.
+     */
+    float getZoomOverviewScale() {
+        return mZoomManager.getZoomOverviewScale();
+    }
+
+    /**
+     * @return TRUE if the WebView can be zoomed in.
+     */
+    public boolean canZoomIn() {
+        checkThread();
+        return mZoomManager.canZoomIn();
+    }
+
+    /**
+     * @return TRUE if the WebView can be zoomed out.
+     */
+    public boolean canZoomOut() {
+        checkThread();
+        return mZoomManager.canZoomOut();
+    }
+
+    /**
+     * Perform zoom in in the webview
+     * @return TRUE if zoom in succeeds. FALSE if no zoom changes.
+     */
+    public boolean zoomIn() {
+        checkThread();
+        return mZoomManager.zoomIn();
+    }
+
+    /**
+     * Perform zoom out in the webview
+     * @return TRUE if zoom out succeeds. FALSE if no zoom changes.
+     */
+    public boolean zoomOut() {
+        checkThread();
+        return mZoomManager.zoomOut();
+    }
+
+    /**
+     * This selects the best clickable target at mLastTouchX and mLastTouchY
+     * and calls showCursorTimed on the native side
+     */
+    private void updateSelection() {
+        if (mNativeClass == 0 || sDisableNavcache) {
+            return;
+        }
+        mPrivateHandler.removeMessages(UPDATE_SELECTION);
+        // mLastTouchX and mLastTouchY are the point in the current viewport
+        int contentX = viewToContentX(mLastTouchX + mScrollX);
+        int contentY = viewToContentY(mLastTouchY + mScrollY);
+        int slop = viewToContentDimension(mNavSlop);
+        Rect rect = new Rect(contentX - slop, contentY - slop,
+                contentX + slop, contentY + slop);
+        nativeSelectBestAt(rect);
+        mInitialHitTestResult = hitTestResult(null);
+    }
+
+    /**
+     * Scroll the focused text field to match the WebTextView
+     * @param xPercent New x position of the WebTextView from 0 to 1.
+     */
+    /*package*/ void scrollFocusedTextInputX(float xPercent) {
+        if (!inEditingMode() || mWebViewCore == null) {
+            return;
+        }
+        mWebViewCore.sendMessage(EventHub.SCROLL_TEXT_INPUT, 0,
+                new Float(xPercent));
+    }
+
+    /**
+     * Scroll the focused textarea vertically to match the WebTextView
+     * @param y New y position of the WebTextView in view coordinates
+     */
+    /* package */ void scrollFocusedTextInputY(int y) {
+        if (!inEditingMode() || mWebViewCore == null) {
+            return;
+        }
+        mWebViewCore.sendMessage(EventHub.SCROLL_TEXT_INPUT, 0, viewToContentDimension(y));
+    }
+
+    /**
+     * Set our starting point and time for a drag from the WebTextView.
+     */
+    /*package*/ void initiateTextFieldDrag(float x, float y, long eventTime) {
+        if (!inEditingMode()) {
+            return;
+        }
+        mLastTouchX = Math.round(x + mWebTextView.getLeft() - mScrollX);
+        mLastTouchY = Math.round(y + mWebTextView.getTop() - mScrollY);
+        mLastTouchTime = eventTime;
+        if (!mScroller.isFinished()) {
+            abortAnimation();
+        }
+        mSnapScrollMode = SNAP_NONE;
+        mVelocityTracker = VelocityTracker.obtain();
+        mTouchMode = TOUCH_DRAG_START_MODE;
+    }
+
+    /**
+     * Given a motion event from the WebTextView, set its location to our
+     * coordinates, and handle the event.
+     */
+    /*package*/ boolean textFieldDrag(MotionEvent event) {
+        if (!inEditingMode()) {
+            return false;
+        }
+        mDragFromTextInput = true;
+        event.offsetLocation((mWebTextView.getLeft() - mScrollX),
+                (mWebTextView.getTop() - mScrollY));
+        boolean result = onTouchEvent(event);
+        mDragFromTextInput = false;
+        return result;
+    }
+
+    /**
+     * Due a touch up from a WebTextView.  This will be handled by webkit to
+     * change the selection.
+     * @param event MotionEvent in the WebTextView's coordinates.
+     */
+    /*package*/ void touchUpOnTextField(MotionEvent event) {
+        if (!inEditingMode()) {
+            return;
+        }
+        int x = viewToContentX((int) event.getX() + mWebTextView.getLeft());
+        int y = viewToContentY((int) event.getY() + mWebTextView.getTop());
+        int slop = viewToContentDimension(mNavSlop);
+        nativeMotionUp(x, y, slop);
+    }
+
+    /**
+     * Called when pressing the center key or trackball on a textfield.
+     */
+    /*package*/ void centerKeyPressOnTextField() {
+        mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(),
+                    nativeCursorNodePointer());
+    }
+
+    private void doShortPress() {
+        if (mNativeClass == 0) {
+            return;
+        }
+        if (mPreventDefault == PREVENT_DEFAULT_YES) {
+            return;
+        }
+        mTouchMode = TOUCH_DONE_MODE;
+        updateSelection();
+        switchOutDrawHistory();
+        // mLastTouchX and mLastTouchY are the point in the current viewport
+        int contentX = viewToContentX(mLastTouchX + mScrollX);
+        int contentY = viewToContentY(mLastTouchY + mScrollY);
+        int slop = viewToContentDimension(mNavSlop);
+        if (sDisableNavcache && !mTouchHighlightRegion.isEmpty()) {
+            // set mTouchHighlightRequested to 0 to cause an immediate
+            // drawing of the touch rings
+            mTouchHighlightRequested = 0;
+            invalidate(mTouchHighlightRegion.getBounds());
+            mPrivateHandler.postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    removeTouchHighlight();
+                }
+            }, ViewConfiguration.getPressedStateDuration());
+        }
+        if (mFocusedNode != null && mFocusedNode.mIntentUrl != null) {
+            playSoundEffect(SoundEffectConstants.CLICK);
+            overrideLoading(mFocusedNode.mIntentUrl);
+        } else if (sDisableNavcache) {
+            WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData();
+            // use "0" as generation id to inform WebKit to use the same x/y as
+            // it used when processing GET_TOUCH_HIGHLIGHT_RECTS
+            touchUpData.mMoveGeneration = 0;
+            mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData);
+        } else if (nativePointInNavCache(contentX, contentY, slop)) {
+            WebViewCore.MotionUpData motionUpData = new WebViewCore
+                    .MotionUpData();
+            motionUpData.mFrame = nativeCacheHitFramePointer();
+            motionUpData.mNode = nativeCacheHitNodePointer();
+            motionUpData.mBounds = nativeCacheHitNodeBounds();
+            motionUpData.mX = contentX;
+            motionUpData.mY = contentY;
+            mWebViewCore.sendMessageAtFrontOfQueue(EventHub.VALID_NODE_BOUNDS,
+                    motionUpData);
+        } else {
+            doMotionUp(contentX, contentY);
+        }
+    }
+
+    private void doMotionUp(int contentX, int contentY) {
+        int slop = viewToContentDimension(mNavSlop);
+        if (nativeMotionUp(contentX, contentY, slop) && mLogEvent) {
+            EventLog.writeEvent(EventLogTags.BROWSER_SNAP_CENTER);
+        }
+        if (nativeHasCursorNode() && !nativeCursorIsTextInput()) {
+            playSoundEffect(SoundEffectConstants.CLICK);
+        }
+    }
+
+    void sendPluginDrawMsg() {
+        mWebViewCore.sendMessage(EventHub.PLUGIN_SURFACE_READY);
+    }
+
+    /**
+     * Returns plugin bounds if x/y in content coordinates corresponds to a
+     * plugin. Otherwise a NULL rectangle is returned.
+     */
+    Rect getPluginBounds(int x, int y) {
+        int slop = viewToContentDimension(mNavSlop);
+        if (nativePointInNavCache(x, y, slop) && nativeCacheHitIsPlugin()) {
+            return nativeCacheHitNodeBounds();
+        } else {
+            return null;
+        }
+    }
+
+    /*
+     * Return true if the rect (e.g. plugin) is fully visible and maximized
+     * inside the WebView.
+     */
+    boolean isRectFitOnScreen(Rect rect) {
+        final int rectWidth = rect.width();
+        final int rectHeight = rect.height();
+        final int viewWidth = getViewWidth();
+        final int viewHeight = getViewHeightWithTitle();
+        float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight / rectHeight);
+        scale = mZoomManager.computeScaleWithLimits(scale);
+        return !mZoomManager.willScaleTriggerZoom(scale)
+                && contentToViewX(rect.left) >= mScrollX
+                && contentToViewX(rect.right) <= mScrollX + viewWidth
+                && contentToViewY(rect.top) >= mScrollY
+                && contentToViewY(rect.bottom) <= mScrollY + viewHeight;
+    }
+
+    /*
+     * Maximize and center the rectangle, specified in the document coordinate
+     * space, inside the WebView. If the zoom doesn't need to be changed, do an
+     * animated scroll to center it. If the zoom needs to be changed, find the
+     * zoom center and do a smooth zoom transition. The rect is in document
+     * coordinates
+     */
+    void centerFitRect(Rect rect) {
+        final int rectWidth = rect.width();
+        final int rectHeight = rect.height();
+        final int viewWidth = getViewWidth();
+        final int viewHeight = getViewHeightWithTitle();
+        float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight
+                / rectHeight);
+        scale = mZoomManager.computeScaleWithLimits(scale);
+        if (!mZoomManager.willScaleTriggerZoom(scale)) {
+            pinScrollTo(contentToViewX(rect.left + rectWidth / 2) - viewWidth / 2,
+                    contentToViewY(rect.top + rectHeight / 2) - viewHeight / 2,
+                    true, 0);
+        } else {
+            float actualScale = mZoomManager.getScale();
+            float oldScreenX = rect.left * actualScale - mScrollX;
+            float rectViewX = rect.left * scale;
+            float rectViewWidth = rectWidth * scale;
+            float newMaxWidth = mContentWidth * scale;
+            float newScreenX = (viewWidth - rectViewWidth) / 2;
+            // pin the newX to the WebView
+            if (newScreenX > rectViewX) {
+                newScreenX = rectViewX;
+            } else if (newScreenX > (newMaxWidth - rectViewX - rectViewWidth)) {
+                newScreenX = viewWidth - (newMaxWidth - rectViewX);
+            }
+            float zoomCenterX = (oldScreenX * scale - newScreenX * actualScale)
+                    / (scale - actualScale);
+            float oldScreenY = rect.top * actualScale + getTitleHeight()
+                    - mScrollY;
+            float rectViewY = rect.top * scale + getTitleHeight();
+            float rectViewHeight = rectHeight * scale;
+            float newMaxHeight = mContentHeight * scale + getTitleHeight();
+            float newScreenY = (viewHeight - rectViewHeight) / 2;
+            // pin the newY to the WebView
+            if (newScreenY > rectViewY) {
+                newScreenY = rectViewY;
+            } else if (newScreenY > (newMaxHeight - rectViewY - rectViewHeight)) {
+                newScreenY = viewHeight - (newMaxHeight - rectViewY);
+            }
+            float zoomCenterY = (oldScreenY * scale - newScreenY * actualScale)
+                    / (scale - actualScale);
+            mZoomManager.setZoomCenter(zoomCenterX, zoomCenterY);
+            mZoomManager.startZoomAnimation(scale, false);
+        }
+    }
+
+    // Called by JNI to handle a touch on a node representing an email address,
+    // address, or phone number
+    private void overrideLoading(String url) {
+        mCallbackProxy.uiOverrideUrlLoading(url);
+    }
+
+    @Override
+    public boolean requestFocus(int direction, Rect previouslyFocusedRect) {
+        // FIXME: If a subwindow is showing find, and the user touches the
+        // background window, it can steal focus.
+        if (mFindIsUp) return false;
+        boolean result = false;
+        if (inEditingMode()) {
+            result = mWebTextView.requestFocus(direction,
+                    previouslyFocusedRect);
+        } else {
+            result = super.requestFocus(direction, previouslyFocusedRect);
+            if (mWebViewCore.getSettings().getNeedInitialFocus() && !isInTouchMode()) {
+                // For cases such as GMail, where we gain focus from a direction,
+                // we want to move to the first available link.
+                // FIXME: If there are no visible links, we may not want to
+                int fakeKeyDirection = 0;
+                switch(direction) {
+                    case View.FOCUS_UP:
+                        fakeKeyDirection = KeyEvent.KEYCODE_DPAD_UP;
+                        break;
+                    case View.FOCUS_DOWN:
+                        fakeKeyDirection = KeyEvent.KEYCODE_DPAD_DOWN;
+                        break;
+                    case View.FOCUS_LEFT:
+                        fakeKeyDirection = KeyEvent.KEYCODE_DPAD_LEFT;
+                        break;
+                    case View.FOCUS_RIGHT:
+                        fakeKeyDirection = KeyEvent.KEYCODE_DPAD_RIGHT;
+                        break;
+                    default:
+                        return result;
+                }
+                if (mNativeClass != 0 && !nativeHasCursorNode()) {
+                    navHandledKey(fakeKeyDirection, 1, true, 0);
+                }
+            }
+        }
+        return result;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+
+        int heightMode = MeasureSpec.getMode(heightMeasureSpec);
+        int heightSize = MeasureSpec.getSize(heightMeasureSpec);
+        int widthMode = MeasureSpec.getMode(widthMeasureSpec);
+        int widthSize = MeasureSpec.getSize(widthMeasureSpec);
+
+        int measuredHeight = heightSize;
+        int measuredWidth = widthSize;
+
+        // Grab the content size from WebViewCore.
+        int contentHeight = contentToViewDimension(mContentHeight);
+        int contentWidth = contentToViewDimension(mContentWidth);
+
+//        Log.d(LOGTAG, "------- measure " + heightMode);
+
+        if (heightMode != MeasureSpec.EXACTLY) {
+            mHeightCanMeasure = true;
+            measuredHeight = contentHeight;
+            if (heightMode == MeasureSpec.AT_MOST) {
+                // If we are larger than the AT_MOST height, then our height can
+                // no longer be measured and we should scroll internally.
+                if (measuredHeight > heightSize) {
+                    measuredHeight = heightSize;
+                    mHeightCanMeasure = false;
+                    measuredHeight |= MEASURED_STATE_TOO_SMALL;
+                }
+            }
+        } else {
+            mHeightCanMeasure = false;
+        }
+        if (mNativeClass != 0) {
+            nativeSetHeightCanMeasure(mHeightCanMeasure);
+        }
+        // For the width, always use the given size unless unspecified.
+        if (widthMode == MeasureSpec.UNSPECIFIED) {
+            mWidthCanMeasure = true;
+            measuredWidth = contentWidth;
+        } else {
+            if (measuredWidth < contentWidth) {
+                measuredWidth |= MEASURED_STATE_TOO_SMALL;
+            }
+            mWidthCanMeasure = false;
+        }
+
+        synchronized (this) {
+            setMeasuredDimension(measuredWidth, measuredHeight);
+        }
+    }
+
+    @Override
+    public boolean requestChildRectangleOnScreen(View child,
+                                                 Rect rect,
+                                                 boolean immediate) {
+        if (mNativeClass == 0) {
+            return false;
+        }
+        // don't scroll while in zoom animation. When it is done, we will adjust
+        // the necessary components (e.g., WebTextView if it is in editing mode)
+        if (mZoomManager.isFixedLengthAnimationInProgress()) {
+            return false;
+        }
+
+        rect.offset(child.getLeft() - child.getScrollX(),
+                child.getTop() - child.getScrollY());
+
+        Rect content = new Rect(viewToContentX(mScrollX),
+                viewToContentY(mScrollY),
+                viewToContentX(mScrollX + getWidth()
+                - getVerticalScrollbarWidth()),
+                viewToContentY(mScrollY + getViewHeightWithTitle()));
+        content = nativeSubtractLayers(content);
+        int screenTop = contentToViewY(content.top);
+        int screenBottom = contentToViewY(content.bottom);
+        int height = screenBottom - screenTop;
+        int scrollYDelta = 0;
+
+        if (rect.bottom > screenBottom) {
+            int oneThirdOfScreenHeight = height / 3;
+            if (rect.height() > 2 * oneThirdOfScreenHeight) {
+                // If the rectangle is too tall to fit in the bottom two thirds
+                // of the screen, place it at the top.
+                scrollYDelta = rect.top - screenTop;
+            } else {
+                // If the rectangle will still fit on screen, we want its
+                // top to be in the top third of the screen.
+                scrollYDelta = rect.top - (screenTop + oneThirdOfScreenHeight);
+            }
+        } else if (rect.top < screenTop) {
+            scrollYDelta = rect.top - screenTop;
+        }
+
+        int screenLeft = contentToViewX(content.left);
+        int screenRight = contentToViewX(content.right);
+        int width = screenRight - screenLeft;
+        int scrollXDelta = 0;
+
+        if (rect.right > screenRight && rect.left > screenLeft) {
+            if (rect.width() > width) {
+                scrollXDelta += (rect.left - screenLeft);
+            } else {
+                scrollXDelta += (rect.right - screenRight);
+            }
+        } else if (rect.left < screenLeft) {
+            scrollXDelta -= (screenLeft - rect.left);
+        }
+
+        if ((scrollYDelta | scrollXDelta) != 0) {
+            return pinScrollBy(scrollXDelta, scrollYDelta, !immediate, 0);
+        }
+
+        return false;
+    }
+
+    /* package */ void replaceTextfieldText(int oldStart, int oldEnd,
+            String replace, int newStart, int newEnd) {
+        WebViewCore.ReplaceTextData arg = new WebViewCore.ReplaceTextData();
+        arg.mReplace = replace;
+        arg.mNewStart = newStart;
+        arg.mNewEnd = newEnd;
+        mTextGeneration++;
+        arg.mTextGeneration = mTextGeneration;
+        mWebViewCore.sendMessage(EventHub.REPLACE_TEXT, oldStart, oldEnd, arg);
+    }
+
+    /* package */ void passToJavaScript(String currentText, KeyEvent event) {
+        // check if mWebViewCore has been destroyed
+        if (mWebViewCore == null) {
+            return;
+        }
+        WebViewCore.JSKeyData arg = new WebViewCore.JSKeyData();
+        arg.mEvent = event;
+        arg.mCurrentText = currentText;
+        // Increase our text generation number, and pass it to webcore thread
+        mTextGeneration++;
+        mWebViewCore.sendMessage(EventHub.PASS_TO_JS, mTextGeneration, 0, arg);
+        // WebKit's document state is not saved until about to leave the page.
+        // To make sure the host application, like Browser, has the up to date
+        // document state when it goes to background, we force to save the
+        // document state.
+        mWebViewCore.removeMessages(EventHub.SAVE_DOCUMENT_STATE);
+        mWebViewCore.sendMessageDelayed(EventHub.SAVE_DOCUMENT_STATE,
+                cursorData(), 1000);
+    }
+
+    /**
+     * @hide
+     */
+    public synchronized WebViewCore getWebViewCore() {
+        return mWebViewCore;
+    }
+
+    /**
+     * Used only by TouchEventQueue to store pending touch events.
+     */
+    private static class QueuedTouch {
+        long mSequence;
+        MotionEvent mEvent; // Optional
+        TouchEventData mTed; // Optional
+
+        QueuedTouch mNext;
+
+        public QueuedTouch set(TouchEventData ted) {
+            mSequence = ted.mSequence;
+            mTed = ted;
+            mEvent = null;
+            mNext = null;
+            return this;
+        }
+
+        public QueuedTouch set(MotionEvent ev, long sequence) {
+            mEvent = MotionEvent.obtain(ev);
+            mSequence = sequence;
+            mTed = null;
+            mNext = null;
+            return this;
+        }
+
+        public QueuedTouch add(QueuedTouch other) {
+            if (other.mSequence < mSequence) {
+                other.mNext = this;
+                return other;
+            }
+
+            QueuedTouch insertAt = this;
+            while (insertAt.mNext != null && insertAt.mNext.mSequence < other.mSequence) {
+                insertAt = insertAt.mNext;
+            }
+            other.mNext = insertAt.mNext;
+            insertAt.mNext = other;
+            return this;
+        }
+    }
+
+    /**
+     * WebView handles touch events asynchronously since some events must be passed to WebKit
+     * for potentially slower processing. TouchEventQueue serializes touch events regardless
+     * of which path they take to ensure that no events are ever processed out of order
+     * by WebView.
+     */
+    private class TouchEventQueue {
+        private long mNextTouchSequence = Long.MIN_VALUE + 1;
+        private long mLastHandledTouchSequence = Long.MIN_VALUE;
+        private long mIgnoreUntilSequence = Long.MIN_VALUE + 1;
+
+        // Events waiting to be processed.
+        private QueuedTouch mTouchEventQueue;
+
+        // Known events that are waiting on a response before being enqueued.
+        private QueuedTouch mPreQueue;
+
+        // Pool of QueuedTouch objects saved for later use.
+        private QueuedTouch mQueuedTouchRecycleBin;
+        private int mQueuedTouchRecycleCount;
+
+        private long mLastEventTime = Long.MAX_VALUE;
+        private static final int MAX_RECYCLED_QUEUED_TOUCH = 15;
+
+        // milliseconds until we abandon hope of getting all of a previous gesture
+        private static final int QUEUED_GESTURE_TIMEOUT = 1000;
+
+        private QueuedTouch obtainQueuedTouch() {
+            if (mQueuedTouchRecycleBin != null) {
+                QueuedTouch result = mQueuedTouchRecycleBin;
+                mQueuedTouchRecycleBin = result.mNext;
+                mQueuedTouchRecycleCount--;
+                return result;
+            }
+            return new QueuedTouch();
+        }
+
+        /**
+         * Allow events with any currently missing sequence numbers to be skipped in processing.
+         */
+        public void ignoreCurrentlyMissingEvents() {
+            mIgnoreUntilSequence = mNextTouchSequence;
+
+            // Run any events we have available and complete, pre-queued or otherwise.
+            runQueuedAndPreQueuedEvents();
+        }
+
+        private void runQueuedAndPreQueuedEvents() {
+            QueuedTouch qd = mPreQueue;
+            boolean fromPreQueue = true;
+            while (qd != null && qd.mSequence == mLastHandledTouchSequence + 1) {
+                handleQueuedTouch(qd);
+                QueuedTouch recycleMe = qd;
+                if (fromPreQueue) {
+                    mPreQueue = qd.mNext;
+                } else {
+                    mTouchEventQueue = qd.mNext;
+                }
+                recycleQueuedTouch(recycleMe);
+                mLastHandledTouchSequence++;
+
+                long nextPre = mPreQueue != null ? mPreQueue.mSequence : Long.MAX_VALUE;
+                long nextQueued = mTouchEventQueue != null ?
+                        mTouchEventQueue.mSequence : Long.MAX_VALUE;
+                fromPreQueue = nextPre < nextQueued;
+                qd = fromPreQueue ? mPreQueue : mTouchEventQueue;
+            }
+        }
+
+        /**
+         * Add a TouchEventData to the pre-queue.
+         *
+         * An event in the pre-queue is an event that we know about that
+         * has been sent to webkit, but that we haven't received back and
+         * enqueued into the normal touch queue yet. If webkit ever times
+         * out and we need to ignore currently missing events, we'll run
+         * events from the pre-queue to patch the holes.
+         *
+         * @param ted TouchEventData to pre-queue
+         */
+        public void preQueueTouchEventData(TouchEventData ted) {
+            QueuedTouch newTouch = obtainQueuedTouch().set(ted);
+            if (mPreQueue == null) {
+                mPreQueue = newTouch;
+            } else {
+                QueuedTouch insertionPoint = mPreQueue;
+                while (insertionPoint.mNext != null &&
+                        insertionPoint.mNext.mSequence < newTouch.mSequence) {
+                    insertionPoint = insertionPoint.mNext;
+                }
+                newTouch.mNext = insertionPoint.mNext;
+                insertionPoint.mNext = newTouch;
+            }
+        }
+
+        private void recycleQueuedTouch(QueuedTouch qd) {
+            if (mQueuedTouchRecycleCount < MAX_RECYCLED_QUEUED_TOUCH) {
+                qd.mNext = mQueuedTouchRecycleBin;
+                mQueuedTouchRecycleBin = qd;
+                mQueuedTouchRecycleCount++;
+            }
+        }
+
+        /**
+         * Reset the touch event queue. This will dump any pending events
+         * and reset the sequence numbering.
+         */
+        public void reset() {
+            mNextTouchSequence = Long.MIN_VALUE + 1;
+            mLastHandledTouchSequence = Long.MIN_VALUE;
+            mIgnoreUntilSequence = Long.MIN_VALUE + 1;
+            while (mTouchEventQueue != null) {
+                QueuedTouch recycleMe = mTouchEventQueue;
+                mTouchEventQueue = mTouchEventQueue.mNext;
+                recycleQueuedTouch(recycleMe);
+            }
+            while (mPreQueue != null) {
+                QueuedTouch recycleMe = mPreQueue;
+                mPreQueue = mPreQueue.mNext;
+                recycleQueuedTouch(recycleMe);
+            }
+        }
+
+        /**
+         * Return the next valid sequence number for tagging incoming touch events.
+         * @return The next touch event sequence number
+         */
+        public long nextTouchSequence() {
+            return mNextTouchSequence++;
+        }
+
+        /**
+         * Enqueue a touch event in the form of TouchEventData.
+         * The sequence number will be read from the mSequence field of the argument.
+         *
+         * If the touch event's sequence number is the next in line to be processed, it will
+         * be handled before this method returns. Any subsequent events that have already
+         * been queued will also be processed in their proper order.
+         *
+         * @param ted Touch data to be processed in order.
+         * @return true if the event was processed before returning, false if it was just enqueued.
+         */
+        public boolean enqueueTouchEvent(TouchEventData ted) {
+            // Remove from the pre-queue if present
+            QueuedTouch preQueue = mPreQueue;
+            if (preQueue != null) {
+                // On exiting this block, preQueue is set to the pre-queued QueuedTouch object
+                // if it was present in the pre-queue, and removed from the pre-queue itself.
+                if (preQueue.mSequence == ted.mSequence) {
+                    mPreQueue = preQueue.mNext;
+                } else {
+                    QueuedTouch prev = preQueue;
+                    preQueue = null;
+                    while (prev.mNext != null) {
+                        if (prev.mNext.mSequence == ted.mSequence) {
+                            preQueue = prev.mNext;
+                            prev.mNext = preQueue.mNext;
+                            break;
+                        } else {
+                            prev = prev.mNext;
+                        }
+                    }
+                }
+            }
+
+            if (ted.mSequence < mLastHandledTouchSequence) {
+                // Stale event and we already moved on; drop it. (Should not be common.)
+                Log.w(LOGTAG, "Stale touch event " + MotionEvent.actionToString(ted.mAction) +
+                        " received from webcore; ignoring");
+                return false;
+            }
+
+            if (dropStaleGestures(ted.mMotionEvent, ted.mSequence)) {
+                return false;
+            }
+
+            // dropStaleGestures above might have fast-forwarded us to
+            // an event we have already.
+            runNextQueuedEvents();
+
+            if (mLastHandledTouchSequence + 1 == ted.mSequence) {
+                if (preQueue != null) {
+                    recycleQueuedTouch(preQueue);
+                    preQueue = null;
+                }
+                handleQueuedTouchEventData(ted);
+
+                mLastHandledTouchSequence++;
+
+                // Do we have any more? Run them if so.
+                runNextQueuedEvents();
+            } else {
+                // Reuse the pre-queued object if we had it.
+                QueuedTouch qd = preQueue != null ? preQueue : obtainQueuedTouch().set(ted);
+                mTouchEventQueue = mTouchEventQueue == null ? qd : mTouchEventQueue.add(qd);
+            }
+            return true;
+        }
+
+        /**
+         * Enqueue a touch event in the form of a MotionEvent from the framework.
+         *
+         * If the touch event's sequence number is the next in line to be processed, it will
+         * be handled before this method returns. Any subsequent events that have already
+         * been queued will also be processed in their proper order.
+         *
+         * @param ev MotionEvent to be processed in order
+         */
+        public void enqueueTouchEvent(MotionEvent ev) {
+            final long sequence = nextTouchSequence();
+
+            if (dropStaleGestures(ev, sequence)) {
+                return;
+            }
+
+            // dropStaleGestures above might have fast-forwarded us to
+            // an event we have already.
+            runNextQueuedEvents();
+
+            if (mLastHandledTouchSequence + 1 == sequence) {
+                handleQueuedMotionEvent(ev);
+
+                mLastHandledTouchSequence++;
+
+                // Do we have any more? Run them if so.
+                runNextQueuedEvents();
+            } else {
+                QueuedTouch qd = obtainQueuedTouch().set(ev, sequence);
+                mTouchEventQueue = mTouchEventQueue == null ? qd : mTouchEventQueue.add(qd);
+            }
+        }
+
+        private void runNextQueuedEvents() {
+            QueuedTouch qd = mTouchEventQueue;
+            while (qd != null && qd.mSequence == mLastHandledTouchSequence + 1) {
+                handleQueuedTouch(qd);
+                QueuedTouch recycleMe = qd;
+                qd = qd.mNext;
+                recycleQueuedTouch(recycleMe);
+                mLastHandledTouchSequence++;
+            }
+            mTouchEventQueue = qd;
+        }
+
+        private boolean dropStaleGestures(MotionEvent ev, long sequence) {
+            if (ev != null && ev.getAction() == MotionEvent.ACTION_MOVE && !mConfirmMove) {
+                // This is to make sure that we don't attempt to process a tap
+                // or long press when webkit takes too long to get back to us.
+                // The movement will be properly confirmed when we process the
+                // enqueued event later.
+                final int dx = Math.round(ev.getX()) - mLastTouchX;
+                final int dy = Math.round(ev.getY()) - mLastTouchY;
+                if (dx * dx + dy * dy > mTouchSlopSquare) {
+                    mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
+                    mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
+                }
+            }
+
+            if (mTouchEventQueue == null) {
+                return sequence <= mLastHandledTouchSequence;
+            }
+
+            // If we have a new down event and it's been a while since the last event
+            // we saw, catch up as best we can and keep going.
+            if (ev != null && ev.getAction() == MotionEvent.ACTION_DOWN) {
+                long eventTime = ev.getEventTime();
+                long lastHandledEventTime = mLastEventTime;
+                if (eventTime > lastHandledEventTime + QUEUED_GESTURE_TIMEOUT) {
+                    Log.w(LOGTAG, "Got ACTION_DOWN but still waiting on stale event. " +
+                            "Catching up.");
+                    runQueuedAndPreQueuedEvents();
+
+                    // Drop leftovers that we truly don't have.
+                    QueuedTouch qd = mTouchEventQueue;
+                    while (qd != null && qd.mSequence < sequence) {
+                        QueuedTouch recycleMe = qd;
+                        qd = qd.mNext;
+                        recycleQueuedTouch(recycleMe);
+                    }
+                    mTouchEventQueue = qd;
+                    mLastHandledTouchSequence = sequence - 1;
+                }
+            }
+
+            if (mIgnoreUntilSequence - 1 > mLastHandledTouchSequence) {
+                QueuedTouch qd = mTouchEventQueue;
+                while (qd != null && qd.mSequence < mIgnoreUntilSequence) {
+                    QueuedTouch recycleMe = qd;
+                    qd = qd.mNext;
+                    recycleQueuedTouch(recycleMe);
+                }
+                mTouchEventQueue = qd;
+                mLastHandledTouchSequence = mIgnoreUntilSequence - 1;
+            }
+
+            if (mPreQueue != null) {
+                // Drop stale prequeued events
+                QueuedTouch qd = mPreQueue;
+                while (qd != null && qd.mSequence < mIgnoreUntilSequence) {
+                    QueuedTouch recycleMe = qd;
+                    qd = qd.mNext;
+                    recycleQueuedTouch(recycleMe);
+                }
+                mPreQueue = qd;
+            }
+
+            return sequence <= mLastHandledTouchSequence;
+        }
+
+        private void handleQueuedTouch(QueuedTouch qt) {
+            if (qt.mTed != null) {
+                handleQueuedTouchEventData(qt.mTed);
+            } else {
+                handleQueuedMotionEvent(qt.mEvent);
+                qt.mEvent.recycle();
+            }
+        }
+
+        private void handleQueuedMotionEvent(MotionEvent ev) {
+            mLastEventTime = ev.getEventTime();
+            int action = ev.getActionMasked();
+            if (ev.getPointerCount() > 1) {  // Multi-touch
+                handleMultiTouchInWebView(ev);
+            } else {
+                final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector();
+                if (detector != null && mPreventDefault != PREVENT_DEFAULT_YES) {
+                    // ScaleGestureDetector needs a consistent event stream to operate properly.
+                    // It won't take any action with fewer than two pointers, but it needs to
+                    // update internal bookkeeping state.
+                    detector.onTouchEvent(ev);
+                }
+
+                handleTouchEventCommon(ev, action, Math.round(ev.getX()), Math.round(ev.getY()));
+            }
+        }
+
+        private void handleQueuedTouchEventData(TouchEventData ted) {
+            if (ted.mMotionEvent != null) {
+                mLastEventTime = ted.mMotionEvent.getEventTime();
+            }
+            if (!ted.mReprocess) {
+                if (ted.mAction == MotionEvent.ACTION_DOWN
+                        && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES) {
+                    // if prevent default is called from WebCore, UI
+                    // will not handle the rest of the touch events any
+                    // more.
+                    mPreventDefault = ted.mNativeResult ? PREVENT_DEFAULT_YES
+                            : PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN;
+                } else if (ted.mAction == MotionEvent.ACTION_MOVE
+                        && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) {
+                    // the return for the first ACTION_MOVE will decide
+                    // whether UI will handle touch or not. Currently no
+                    // support for alternating prevent default
+                    mPreventDefault = ted.mNativeResult ? PREVENT_DEFAULT_YES
+                            : PREVENT_DEFAULT_NO;
+                }
+                if (mPreventDefault == PREVENT_DEFAULT_YES) {
+                    mTouchHighlightRegion.setEmpty();
+                }
+            } else {
+                if (ted.mPoints.length > 1) {  // multi-touch
+                    if (!ted.mNativeResult && mPreventDefault != PREVENT_DEFAULT_YES) {
+                        mPreventDefault = PREVENT_DEFAULT_NO;
+                        handleMultiTouchInWebView(ted.mMotionEvent);
+                    } else {
+                        mPreventDefault = PREVENT_DEFAULT_YES;
+                    }
+                    return;
+                }
+
+                // prevent default is not called in WebCore, so the
+                // message needs to be reprocessed in UI
+                if (!ted.mNativeResult) {
+                    // Following is for single touch.
+                    switch (ted.mAction) {
+                        case MotionEvent.ACTION_DOWN:
+                            mLastDeferTouchX = ted.mPointsInView[0].x;
+                            mLastDeferTouchY = ted.mPointsInView[0].y;
+                            mDeferTouchMode = TOUCH_INIT_MODE;
+                            break;
+                        case MotionEvent.ACTION_MOVE: {
+                            // no snapping in defer process
+                            int x = ted.mPointsInView[0].x;
+                            int y = ted.mPointsInView[0].y;
+
+                            if (mDeferTouchMode != TOUCH_DRAG_MODE) {
+                                mDeferTouchMode = TOUCH_DRAG_MODE;
+                                mLastDeferTouchX = x;
+                                mLastDeferTouchY = y;
+                                startScrollingLayer(x, y);
+                                startDrag();
+                            }
+                            int deltaX = pinLocX((int) (mScrollX
+                                    + mLastDeferTouchX - x))
+                                    - mScrollX;
+                            int deltaY = pinLocY((int) (mScrollY
+                                    + mLastDeferTouchY - y))
+                                    - mScrollY;
+                            doDrag(deltaX, deltaY);
+                            if (deltaX != 0) mLastDeferTouchX = x;
+                            if (deltaY != 0) mLastDeferTouchY = y;
+                            break;
+                        }
+                        case MotionEvent.ACTION_UP:
+                        case MotionEvent.ACTION_CANCEL:
+                            if (mDeferTouchMode == TOUCH_DRAG_MODE) {
+                                // no fling in defer process
+                                mScroller.springBack(mScrollX, mScrollY, 0,
+                                        computeMaxScrollX(), 0,
+                                        computeMaxScrollY());
+                                invalidate();
+                                WebViewCore.resumePriority();
+                                WebViewCore.resumeUpdatePicture(mWebViewCore);
+                            }
+                            mDeferTouchMode = TOUCH_DONE_MODE;
+                            break;
+                        case WebViewCore.ACTION_DOUBLETAP:
+                            // doDoubleTap() needs mLastTouchX/Y as anchor
+                            mLastDeferTouchX = ted.mPointsInView[0].x;
+                            mLastDeferTouchY = ted.mPointsInView[0].y;
+                            mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY);
+                            mDeferTouchMode = TOUCH_DONE_MODE;
+                            break;
+                        case WebViewCore.ACTION_LONGPRESS:
+                            HitTestResult hitTest = getHitTestResult();
+                            if (hitTest != null && hitTest.mType
+                                    != HitTestResult.UNKNOWN_TYPE) {
+                                performLongClick();
+                            }
+                            mDeferTouchMode = TOUCH_DONE_MODE;
+                            break;
+                    }
+                }
+            }
+        }
+    }
+
+    //-------------------------------------------------------------------------
+    // Methods can be called from a separate thread, like WebViewCore
+    // If it needs to call the View system, it has to send message.
+    //-------------------------------------------------------------------------
+
+    /**
+     * General handler to receive message coming from webkit thread
+     */
+    class PrivateHandler extends Handler {
+        @Override
+        public void handleMessage(Message msg) {
+            // exclude INVAL_RECT_MSG_ID since it is frequently output
+            if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) {
+                if (msg.what >= FIRST_PRIVATE_MSG_ID
+                        && msg.what <= LAST_PRIVATE_MSG_ID) {
+                    Log.v(LOGTAG, HandlerPrivateDebugString[msg.what
+                            - FIRST_PRIVATE_MSG_ID]);
+                } else if (msg.what >= FIRST_PACKAGE_MSG_ID
+                        && msg.what <= LAST_PACKAGE_MSG_ID) {
+                    Log.v(LOGTAG, HandlerPackageDebugString[msg.what
+                            - FIRST_PACKAGE_MSG_ID]);
+                } else {
+                    Log.v(LOGTAG, Integer.toString(msg.what));
+                }
+            }
+            if (mWebViewCore == null) {
+                // after WebView's destroy() is called, skip handling messages.
+                return;
+            }
+            if (mBlockWebkitViewMessages
+                    && msg.what != WEBCORE_INITIALIZED_MSG_ID) {
+                // Blocking messages from webkit
+                return;
+            }
+            switch (msg.what) {
+                case REMEMBER_PASSWORD: {
+                    mDatabase.setUsernamePassword(
+                            msg.getData().getString("host"),
+                            msg.getData().getString("username"),
+                            msg.getData().getString("password"));
+                    ((Message) msg.obj).sendToTarget();
+                    break;
+                }
+                case NEVER_REMEMBER_PASSWORD: {
+                    mDatabase.setUsernamePassword(
+                            msg.getData().getString("host"), null, null);
+                    ((Message) msg.obj).sendToTarget();
+                    break;
+                }
+                case PREVENT_DEFAULT_TIMEOUT: {
+                    // if timeout happens, cancel it so that it won't block UI
+                    // to continue handling touch events
+                    if ((msg.arg1 == MotionEvent.ACTION_DOWN
+                            && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES)
+                            || (msg.arg1 == MotionEvent.ACTION_MOVE
+                            && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN)) {
+                        cancelWebCoreTouchEvent(
+                                viewToContentX(mLastTouchX + mScrollX),
+                                viewToContentY(mLastTouchY + mScrollY),
+                                true);
+                    }
+                    break;
+                }
+                case SCROLL_SELECT_TEXT: {
+                    if (mAutoScrollX == 0 && mAutoScrollY == 0) {
+                        mSentAutoScrollMessage = false;
+                        break;
+                    }
+                    if (mCurrentScrollingLayerId == 0) {
+                        pinScrollBy(mAutoScrollX, mAutoScrollY, true, 0);
+                    } else {
+                        scrollLayerTo(mScrollingLayerRect.left + mAutoScrollX,
+                                mScrollingLayerRect.top + mAutoScrollY);
+                    }
+                    sendEmptyMessageDelayed(
+                            SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL);
+                    break;
+                }
+                case UPDATE_SELECTION: {
+                    if (mTouchMode == TOUCH_INIT_MODE
+                            || mTouchMode == TOUCH_SHORTPRESS_MODE
+                            || mTouchMode == TOUCH_SHORTPRESS_START_MODE) {
+                        updateSelection();
+                    }
+                    break;
+                }
+                case SWITCH_TO_SHORTPRESS: {
+                    if (mTouchMode == TOUCH_INIT_MODE) {
+                        if (!sDisableNavcache
+                                && mPreventDefault != PREVENT_DEFAULT_YES) {
+                            mTouchMode = TOUCH_SHORTPRESS_START_MODE;
+                            updateSelection();
+                        } else {
+                            // set to TOUCH_SHORTPRESS_MODE so that it won't
+                            // trigger double tap any more
+                            mTouchMode = TOUCH_SHORTPRESS_MODE;
+                        }
+                    } else if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) {
+                        mTouchMode = TOUCH_DONE_MODE;
+                    }
+                    break;
+                }
+                case SWITCH_TO_LONGPRESS: {
+                    if (sDisableNavcache) {
+                        removeTouchHighlight();
+                    }
+                    if (inFullScreenMode() || mDeferTouchProcess) {
+                        TouchEventData ted = new TouchEventData();
+                        ted.mAction = WebViewCore.ACTION_LONGPRESS;
+                        ted.mIds = new int[1];
+                        ted.mIds[0] = 0;
+                        ted.mPoints = new Point[1];
+                        ted.mPoints[0] = new Point(viewToContentX(mLastTouchX + mScrollX),
+                                                   viewToContentY(mLastTouchY + mScrollY));
+                        ted.mPointsInView = new Point[1];
+                        ted.mPointsInView[0] = new Point(mLastTouchX, mLastTouchY);
+                        // metaState for long press is tricky. Should it be the
+                        // state when the press started or when the press was
+                        // released? Or some intermediary key state? For
+                        // simplicity for now, we don't set it.
+                        ted.mMetaState = 0;
+                        ted.mReprocess = mDeferTouchProcess;
+                        ted.mNativeLayer = nativeScrollableLayer(
+                                ted.mPoints[0].x, ted.mPoints[0].y,
+                                ted.mNativeLayerRect, null);
+                        ted.mSequence = mTouchEventQueue.nextTouchSequence();
+                        mTouchEventQueue.preQueueTouchEventData(ted);
+                        mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted);
+                    } else if (mPreventDefault != PREVENT_DEFAULT_YES) {
+                        mTouchMode = TOUCH_DONE_MODE;
+                        performLongClick();
+                    }
+                    break;
+                }
+                case RELEASE_SINGLE_TAP: {
+                    doShortPress();
+                    break;
+                }
+                case SCROLL_TO_MSG_ID: {
+                    // arg1 = animate, arg2 = onlyIfImeIsShowing
+                    // obj = Point(x, y)
+                    if (msg.arg2 == 1) {
+                        // This scroll is intended to bring the textfield into
+                        // view, but is only necessary if the IME is showing
+                        InputMethodManager imm = InputMethodManager.peekInstance();
+                        if (imm == null || !imm.isAcceptingText()
+                                || (!imm.isActive(WebView.this) && (!inEditingMode()
+                                || !imm.isActive(mWebTextView)))) {
+                            break;
+                        }
+                    }
+                    final Point p = (Point) msg.obj;
+                    if (msg.arg1 == 1) {
+                        spawnContentScrollTo(p.x, p.y);
+                    } else {
+                        setContentScrollTo(p.x, p.y);
+                    }
+                    break;
+                }
+                case UPDATE_ZOOM_RANGE: {
+                    WebViewCore.ViewState viewState = (WebViewCore.ViewState) msg.obj;
+                    // mScrollX contains the new minPrefWidth
+                    mZoomManager.updateZoomRange(viewState, getViewWidth(), viewState.mScrollX);
+                    break;
+                }
+                case UPDATE_ZOOM_DENSITY: {
+                    final float density = (Float) msg.obj;
+                    mZoomManager.updateDefaultZoomDensity(density);
+                    break;
+                }
+                case REPLACE_BASE_CONTENT: {
+                    nativeReplaceBaseContent(msg.arg1);
+                    break;
+                }
+                case NEW_PICTURE_MSG_ID: {
+                    // called for new content
+                    final WebViewCore.DrawData draw = (WebViewCore.DrawData) msg.obj;
+                    setNewPicture(draw, true);
+                    break;
+                }
+                case WEBCORE_INITIALIZED_MSG_ID:
+                    // nativeCreate sets mNativeClass to a non-zero value
+                    String drawableDir = BrowserFrame.getRawResFilename(
+                            BrowserFrame.DRAWABLEDIR, mContext);
+                    WindowManager windowManager =
+                            (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
+                    Display display = windowManager.getDefaultDisplay();
+                    nativeCreate(msg.arg1, drawableDir,
+                            ActivityManager.isHighEndGfx(display));
+                    if (mDelaySetPicture != null) {
+                        setNewPicture(mDelaySetPicture, true);
+                        mDelaySetPicture = null;
+                    }
+                    if (mIsPaused) {
+                        nativeSetPauseDrawing(mNativeClass, true);
+                    }
+                    break;
+                case UPDATE_TEXTFIELD_TEXT_MSG_ID:
+                    // Make sure that the textfield is currently focused
+                    // and representing the same node as the pointer.
+                    if (msg.arg2 == mTextGeneration) {
+                        String text = (String) msg.obj;
+                        if (null == text) {
+                            text = "";
+                        }
+                        if (inEditingMode() &&
+                                mWebTextView.isSameTextField(msg.arg1)) {
+                            mWebTextView.setTextAndKeepSelection(text);
+                        } else if (mInputConnection != null &&
+                                mFieldPointer == msg.arg1) {
+                            mInputConnection.setTextAndKeepSelection(text);
+                        }
+                    }
+                    break;
+                case REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID:
+                    displaySoftKeyboard(true);
+                    // fall through to UPDATE_TEXT_SELECTION_MSG_ID
+                case UPDATE_TEXT_SELECTION_MSG_ID:
+                    updateTextSelectionFromMessage(msg.arg1, msg.arg2,
+                            (WebViewCore.TextSelectionData) msg.obj);
+                    break;
+                case FORM_DID_BLUR:
+                    if (inEditingMode()
+                            && mWebTextView.isSameTextField(msg.arg1)) {
+                        hideSoftKeyboard();
+                    }
+                    break;
+                case RETURN_LABEL:
+                    if (inEditingMode()
+                            && mWebTextView.isSameTextField(msg.arg1)) {
+                        mWebTextView.setHint((String) msg.obj);
+                        InputMethodManager imm
+                                = InputMethodManager.peekInstance();
+                        // The hint is propagated to the IME in
+                        // onCreateInputConnection.  If the IME is already
+                        // active, restart it so that its hint text is updated.
+                        if (imm != null && imm.isActive(mWebTextView)) {
+                            imm.restartInput(mWebTextView);
+                        }
+                    }
+                    break;
+                case UNHANDLED_NAV_KEY:
+                    navHandledKey(msg.arg1, 1, false, 0);
+                    break;
+                case UPDATE_TEXT_ENTRY_MSG_ID:
+                    // this is sent after finishing resize in WebViewCore. Make
+                    // sure the text edit box is still on the  screen.
+                    if (inEditingMode() && nativeCursorIsTextInput()) {
+                        updateWebTextViewPosition();
+                    }
+                    break;
+                case CLEAR_TEXT_ENTRY:
+                    clearTextEntry();
+                    break;
+                case INVAL_RECT_MSG_ID: {
+                    Rect r = (Rect)msg.obj;
+                    if (r == null) {
+                        invalidate();
+                    } else {
+                        // we need to scale r from content into view coords,
+                        // which viewInvalidate() does for us
+                        viewInvalidate(r.left, r.top, r.right, r.bottom);
+                    }
+                    break;
+                }
+                case REQUEST_FORM_DATA:
+                    AutoCompleteAdapter adapter = (AutoCompleteAdapter) msg.obj;
+                    if (mWebTextView.isSameTextField(msg.arg1)) {
+                        mWebTextView.setAdapterCustom(adapter);
+                    }
+                    break;
+
+                case LONG_PRESS_CENTER:
+                    // as this is shared by keydown and trackballdown, reset all
+                    // the states
+                    mGotCenterDown = false;
+                    mTrackballDown = false;
+                    performLongClick();
+                    break;
+
+                case WEBCORE_NEED_TOUCH_EVENTS:
+                    mForwardTouchEvents = (msg.arg1 != 0);
+                    break;
+
+                case PREVENT_TOUCH_ID:
+                    if (inFullScreenMode()) {
+                        break;
+                    }
+                    TouchEventData ted = (TouchEventData) msg.obj;
+
+                    if (mTouchEventQueue.enqueueTouchEvent(ted)) {
+                        // WebCore is responding to us; remove pending timeout.
+                        // It will be re-posted when needed.
+                        removeMessages(PREVENT_DEFAULT_TIMEOUT);
+                    }
+                    break;
+
+                case REQUEST_KEYBOARD:
+                    if (msg.arg1 == 0) {
+                        hideSoftKeyboard();
+                    } else {
+                        displaySoftKeyboard(false);
+                    }
+                    break;
+
+                case DRAG_HELD_MOTIONLESS:
+                    mHeldMotionless = MOTIONLESS_TRUE;
+                    invalidate();
+                    // fall through to keep scrollbars awake
+
+                case AWAKEN_SCROLL_BARS:
+                    if (mTouchMode == TOUCH_DRAG_MODE
+                            && mHeldMotionless == MOTIONLESS_TRUE) {
+                        awakenScrollBars(ViewConfiguration
+                                .getScrollDefaultDelay(), false);
+                        mPrivateHandler.sendMessageDelayed(mPrivateHandler
+                                .obtainMessage(AWAKEN_SCROLL_BARS),
+                                ViewConfiguration.getScrollDefaultDelay());
+                    }
+                    break;
+
+                case DO_MOTION_UP:
+                    doMotionUp(msg.arg1, msg.arg2);
+                    break;
+
+                case SCREEN_ON:
+                    setKeepScreenOn(msg.arg1 == 1);
+                    break;
+
+                case ENTER_FULLSCREEN_VIDEO:
+                    int layerId = msg.arg1;
+
+                    String url = (String) msg.obj;
+                    if (mHTML5VideoViewProxy != null) {
+                        mHTML5VideoViewProxy.enterFullScreenVideo(layerId, url);
+                    }
+                    break;
+
+                case EXIT_FULLSCREEN_VIDEO:
+                    if (mHTML5VideoViewProxy != null) {
+                        mHTML5VideoViewProxy.exitFullScreenVideo();
+                    }
+                    break;
+
+                case SHOW_FULLSCREEN: {
+                    View view = (View) msg.obj;
+                    int orientation = msg.arg1;
+                    int npp = msg.arg2;
+
+                    if (inFullScreenMode()) {
+                        Log.w(LOGTAG, "Should not have another full screen.");
+                        dismissFullScreenMode();
+                    }
+                    mFullScreenHolder = new PluginFullScreenHolder(WebView.this, orientation, npp);
+                    mFullScreenHolder.setContentView(view);
+                    mFullScreenHolder.show();
+                    invalidate();
+
+                    break;
+                }
+                case HIDE_FULLSCREEN:
+                    dismissFullScreenMode();
+                    break;
+
+                case DOM_FOCUS_CHANGED:
+                    if (inEditingMode()) {
+                        nativeClearCursor();
+                        rebuildWebTextView();
+                    }
+                    break;
+
+                case SHOW_RECT_MSG_ID: {
+                    WebViewCore.ShowRectData data = (WebViewCore.ShowRectData) msg.obj;
+                    int x = mScrollX;
+                    int left = contentToViewX(data.mLeft);
+                    int width = contentToViewDimension(data.mWidth);
+                    int maxWidth = contentToViewDimension(data.mContentWidth);
+                    int viewWidth = getViewWidth();
+                    if (width < viewWidth) {
+                        // center align
+                        x += left + width / 2 - mScrollX - viewWidth / 2;
+                    } else {
+                        x += (int) (left + data.mXPercentInDoc * width
+                                - mScrollX - data.mXPercentInView * viewWidth);
+                    }
+                    if (DebugFlags.WEB_VIEW) {
+                        Log.v(LOGTAG, "showRectMsg=(left=" + left + ",width=" +
+                              width + ",maxWidth=" + maxWidth +
+                              ",viewWidth=" + viewWidth + ",x="
+                              + x + ",xPercentInDoc=" + data.mXPercentInDoc +
+                              ",xPercentInView=" + data.mXPercentInView+ ")");
+                    }
+                    // use the passing content width to cap x as the current
+                    // mContentWidth may not be updated yet
+                    x = Math.max(0,
+                            (Math.min(maxWidth, x + viewWidth)) - viewWidth);
+                    int top = contentToViewY(data.mTop);
+                    int height = contentToViewDimension(data.mHeight);
+                    int maxHeight = contentToViewDimension(data.mContentHeight);
+                    int viewHeight = getViewHeight();
+                    int y = (int) (top + data.mYPercentInDoc * height -
+                                   data.mYPercentInView * viewHeight);
+                    if (DebugFlags.WEB_VIEW) {
+                        Log.v(LOGTAG, "showRectMsg=(top=" + top + ",height=" +
+                              height + ",maxHeight=" + maxHeight +
+                              ",viewHeight=" + viewHeight + ",y="
+                              + y + ",yPercentInDoc=" + data.mYPercentInDoc +
+                              ",yPercentInView=" + data.mYPercentInView+ ")");
+                    }
+                    // use the passing content height to cap y as the current
+                    // mContentHeight may not be updated yet
+                    y = Math.max(0,
+                            (Math.min(maxHeight, y + viewHeight) - viewHeight));
+                    // We need to take into account the visible title height
+                    // when scrolling since y is an absolute view position.
+                    y = Math.max(0, y - getVisibleTitleHeightImpl());
+                    scrollTo(x, y);
+                    }
+                    break;
+
+                case CENTER_FIT_RECT:
+                    centerFitRect((Rect)msg.obj);
+                    break;
+
+                case SET_SCROLLBAR_MODES:
+                    mHorizontalScrollBarMode = msg.arg1;
+                    mVerticalScrollBarMode = msg.arg2;
+                    break;
+
+                case SELECTION_STRING_CHANGED:
+                    if (mAccessibilityInjector != null) {
+                        String selectionString = (String) msg.obj;
+                        mAccessibilityInjector.onSelectionStringChange(selectionString);
+                    }
+                    break;
+
+                case HIT_TEST_RESULT:
+                    WebKitHitTest hit = (WebKitHitTest) msg.obj;
+                    mFocusedNode = hit;
+                    setTouchHighlightRects(hit);
+                    setHitTestResult(hit);
+                    break;
+
+                case SAVE_WEBARCHIVE_FINISHED:
+                    SaveWebArchiveMessage saveMessage = (SaveWebArchiveMessage)msg.obj;
+                    if (saveMessage.mCallback != null) {
+                        saveMessage.mCallback.onReceiveValue(saveMessage.mResultFile);
+                    }
+                    break;
+
+                case SET_AUTOFILLABLE:
+                    mAutoFillData = (WebViewCore.AutoFillData) msg.obj;
+                    if (mWebTextView != null) {
+                        mWebTextView.setAutoFillable(mAutoFillData.getQueryId());
+                        rebuildWebTextView();
+                    }
+                    break;
+
+                case AUTOFILL_COMPLETE:
+                    if (mWebTextView != null) {
+                        // Clear the WebTextView adapter when AutoFill finishes
+                        // so that the drop down gets cleared.
+                        mWebTextView.setAdapterCustom(null);
+                    }
+                    break;
+
+                case SELECT_AT:
+                    nativeSelectAt(msg.arg1, msg.arg2);
+                    break;
+
+                case COPY_TO_CLIPBOARD:
+                    copyToClipboard((String) msg.obj);
+                    break;
+
+                case INIT_EDIT_FIELD:
+                    if (mInputConnection != null) {
+                        TextFieldInitData initData = (TextFieldInitData) msg.obj;
+                        mTextGeneration = 0;
+                        mFieldPointer = initData.mFieldPointer;
+                        mInputConnection.initEditorInfo(initData);
+                        mInputConnection.setTextAndKeepSelection(initData.mText);
+                    }
+                    break;
+
+                case REPLACE_TEXT:{
+                    String text = (String)msg.obj;
+                    int start = msg.arg1;
+                    int end = msg.arg2;
+                    int cursorPosition = start + text.length();
+                    replaceTextfieldText(start, end, text,
+                            cursorPosition, cursorPosition);
+                    break;
+                }
+
+                case UPDATE_MATCH_COUNT: {
+                    if (mFindCallback != null) {
+                        mFindCallback.updateMatchCount(msg.arg1, msg.arg2,
+                            (String) msg.obj);
+                    }
+                    break;
+                }
+                case CLEAR_CARET_HANDLE:
+                    selectionDone();
+                    break;
+
+                case KEY_PRESS:
+                    mWebViewCore.sendMessage(EventHub.KEY_PRESS, msg.arg1);
+                    break;
+
+                default:
+                    super.handleMessage(msg);
+                    break;
+            }
+        }
+    }
+
+    private void setHitTestTypeFromUrl(String url) {
+        String substr = null;
+        if (url.startsWith(SCHEME_GEO)) {
+            mInitialHitTestResult.mType = HitTestResult.GEO_TYPE;
+            substr = url.substring(SCHEME_GEO.length());
+        } else if (url.startsWith(SCHEME_TEL)) {
+            mInitialHitTestResult.mType = HitTestResult.PHONE_TYPE;
+            substr = url.substring(SCHEME_TEL.length());
+        } else if (url.startsWith(SCHEME_MAILTO)) {
+            mInitialHitTestResult.mType = HitTestResult.EMAIL_TYPE;
+            substr = url.substring(SCHEME_MAILTO.length());
+        } else {
+            mInitialHitTestResult.mType = HitTestResult.SRC_ANCHOR_TYPE;
+            mInitialHitTestResult.mExtra = url;
+            return;
+        }
+        try {
+            mInitialHitTestResult.mExtra = URLDecoder.decode(substr, "UTF-8");
+        } catch (Throwable e) {
+            Log.w(LOGTAG, "Failed to decode URL! " + substr, e);
+            mInitialHitTestResult.mType = HitTestResult.UNKNOWN_TYPE;
+        }
+    }
+
+    private void setHitTestResult(WebKitHitTest hit) {
+        if (hit == null) {
+            mInitialHitTestResult = null;
+            return;
+        }
+        mInitialHitTestResult = new HitTestResult();
+        if (hit.mLinkUrl != null) {
+            setHitTestTypeFromUrl(hit.mLinkUrl);
+            if (hit.mImageUrl != null
+                    && mInitialHitTestResult.mType == HitTestResult.SRC_ANCHOR_TYPE) {
+                mInitialHitTestResult.mType = HitTestResult.SRC_IMAGE_ANCHOR_TYPE;
+                mInitialHitTestResult.mExtra = hit.mImageUrl;
+            }
+        } else if (hit.mImageUrl != null) {
+            mInitialHitTestResult.mType = HitTestResult.IMAGE_TYPE;
+            mInitialHitTestResult.mExtra = hit.mImageUrl;
+        } else if (hit.mEditable) {
+            mInitialHitTestResult.mType = HitTestResult.EDIT_TEXT_TYPE;
+        } else if (hit.mIntentUrl != null) {
+            setHitTestTypeFromUrl(hit.mIntentUrl);
+        }
+    }
+
+    private boolean shouldDrawHighlightRect() {
+        if (mFocusedNode == null || mInitialHitTestResult == null) {
+            return false;
+        }
+        if (mTouchHighlightRegion.isEmpty()) {
+            return false;
+        }
+        if (mFocusedNode.mHasFocus && !isInTouchMode()) {
+            return !mFocusedNode.mEditable;
+        }
+        if (mInitialHitTestResult.mType == HitTestResult.UNKNOWN_TYPE) {
+            return false;
+        }
+        long delay = System.currentTimeMillis() - mTouchHighlightRequested;
+        if (delay < ViewConfiguration.getTapTimeout()) {
+            Rect r = mTouchHighlightRegion.getBounds();
+            postInvalidateDelayed(delay, r.left, r.top, r.right, r.bottom);
+            return false;
+        }
+        return true;
+    }
+
+
+    private FocusTransitionDrawable mFocusTransition = null;
+    static class FocusTransitionDrawable extends Drawable {
+        Region mPreviousRegion;
+        Region mNewRegion;
+        float mProgress = 0;
+        WebView mWebView;
+        Paint mPaint;
+        int mMaxAlpha;
+        Point mTranslate;
+
+        public FocusTransitionDrawable(WebView view) {
+            mWebView = view;
+            mPaint = new Paint(mWebView.mTouchHightlightPaint);
+            mMaxAlpha = mPaint.getAlpha();
+        }
+
+        @Override
+        public void setColorFilter(ColorFilter cf) {
+        }
+
+        @Override
+        public void setAlpha(int alpha) {
+        }
+
+        @Override
+        public int getOpacity() {
+            return 0;
+        }
+
+        public void setProgress(float p) {
+            mProgress = p;
+            if (mWebView.mFocusTransition == this) {
+                if (mProgress == 1f)
+                    mWebView.mFocusTransition = null;
+                mWebView.invalidate();
+            }
+        }
+
+        public float getProgress() {
+            return mProgress;
+        }
+
+        @Override
+        public void draw(Canvas canvas) {
+            if (mTranslate == null) {
+                Rect bounds = mPreviousRegion.getBounds();
+                Point from = new Point(bounds.centerX(), bounds.centerY());
+                mNewRegion.getBounds(bounds);
+                Point to = new Point(bounds.centerX(), bounds.centerY());
+                mTranslate = new Point(from.x - to.x, from.y - to.y);
+            }
+            int alpha = (int) (mProgress * mMaxAlpha);
+            RegionIterator iter = new RegionIterator(mPreviousRegion);
+            Rect r = new Rect();
+            mPaint.setAlpha(mMaxAlpha - alpha);
+            float tx = mTranslate.x * mProgress;
+            float ty = mTranslate.y * mProgress;
+            int save = canvas.save(Canvas.MATRIX_SAVE_FLAG);
+            canvas.translate(-tx, -ty);
+            while (iter.next(r)) {
+                canvas.drawRect(r, mPaint);
+            }
+            canvas.restoreToCount(save);
+            iter = new RegionIterator(mNewRegion);
+            r = new Rect();
+            mPaint.setAlpha(alpha);
+            save = canvas.save(Canvas.MATRIX_SAVE_FLAG);
+            tx = mTranslate.x - tx;
+            ty = mTranslate.y - ty;
+            canvas.translate(tx, ty);
+            while (iter.next(r)) {
+                canvas.drawRect(r, mPaint);
+            }
+            canvas.restoreToCount(save);
+        }
+    };
+
+    private boolean shouldAnimateTo(WebKitHitTest hit) {
+        // TODO: Don't be annoying or throw out the animation entirely
+        return false;
+    }
+
+    private void setTouchHighlightRects(WebKitHitTest hit) {
+        FocusTransitionDrawable transition = null;
+        if (shouldAnimateTo(hit)) {
+            transition = new FocusTransitionDrawable(this);
+        }
+        Rect[] rects = hit != null ? hit.mTouchRects : null;
+        if (!mTouchHighlightRegion.isEmpty()) {
+            invalidate(mTouchHighlightRegion.getBounds());
+            if (transition != null) {
+                transition.mPreviousRegion = new Region(mTouchHighlightRegion);
+            }
+            mTouchHighlightRegion.setEmpty();
+        }
+        if (rects != null) {
+            mTouchHightlightPaint.setColor(hit.mTapHighlightColor);
+            for (Rect rect : rects) {
+                Rect viewRect = contentToViewRect(rect);
+                // some sites, like stories in nytimes.com, set
+                // mouse event handler in the top div. It is not
+                // user friendly to highlight the div if it covers
+                // more than half of the screen.
+                if (viewRect.width() < getWidth() >> 1
+                        || viewRect.height() < getHeight() >> 1) {
+                    mTouchHighlightRegion.union(viewRect);
+                } else {
+                    Log.w(LOGTAG, "Skip the huge selection rect:"
+                            + viewRect);
+                }
+            }
+            invalidate(mTouchHighlightRegion.getBounds());
+            if (transition != null && transition.mPreviousRegion != null) {
+                transition.mNewRegion = new Region(mTouchHighlightRegion);
+                mFocusTransition = transition;
+                ObjectAnimator animator = ObjectAnimator.ofFloat(
+                        mFocusTransition, "progress", 1f);
+                animator.start();
+            }
+        }
+    }
+
+    /** @hide Called by JNI when pages are swapped (only occurs with hardware
+     * acceleration) */
+    protected void pageSwapCallback(boolean notifyAnimationStarted) {
+        mWebViewCore.resumeWebKitDraw();
+        if (inEditingMode()) {
+            didUpdateWebTextViewDimensions(ANYWHERE);
+        }
+        if (notifyAnimationStarted) {
+            mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED);
+        }
+    }
+
+    void setNewPicture(final WebViewCore.DrawData draw, boolean updateBaseLayer) {
+        if (mNativeClass == 0) {
+            if (mDelaySetPicture != null) {
+                throw new IllegalStateException("Tried to setNewPicture with"
+                        + " a delay picture already set! (memory leak)");
+            }
+            // Not initialized yet, delay set
+            mDelaySetPicture = draw;
+            return;
+        }
+        WebViewCore.ViewState viewState = draw.mViewState;
+        boolean isPictureAfterFirstLayout = viewState != null;
+
+        if (updateBaseLayer) {
+            setBaseLayer(draw.mBaseLayer, draw.mInvalRegion,
+                    getSettings().getShowVisualIndicator(),
+                    isPictureAfterFirstLayout);
+        }
+        final Point viewSize = draw.mViewSize;
+        // We update the layout (i.e. request a layout from the
+        // view system) if the last view size that we sent to
+        // WebCore matches the view size of the picture we just
+        // received in the fixed dimension.
+        final boolean updateLayout = viewSize.x == mLastWidthSent
+                && viewSize.y == mLastHeightSent;
+        // Don't send scroll event for picture coming from webkit,
+        // since the new picture may cause a scroll event to override
+        // the saved history scroll position.
+        mSendScrollEvent = false;
+        recordNewContentSize(draw.mContentSize.x,
+                draw.mContentSize.y, updateLayout);
+        if (isPictureAfterFirstLayout) {
+            // Reset the last sent data here since dealing with new page.
+            mLastWidthSent = 0;
+            mZoomManager.onFirstLayout(draw);
+            int scrollX = viewState.mShouldStartScrolledRight
+                    ? getContentWidth() : viewState.mScrollX;
+            int scrollY = viewState.mScrollY;
+            setContentScrollTo(scrollX, scrollY);
+            if (!mDrawHistory) {
+                // As we are on a new page, remove the WebTextView. This
+                // is necessary for page loads driven by webkit, and in
+                // particular when the user was on a password field, so
+                // the WebTextView was visible.
+                clearTextEntry();
+            }
+        }
+        mSendScrollEvent = true;
+
+        if (DebugFlags.WEB_VIEW) {
+            Rect b = draw.mInvalRegion.getBounds();
+            Log.v(LOGTAG, "NEW_PICTURE_MSG_ID {" +
+                    b.left+","+b.top+","+b.right+","+b.bottom+"}");
+        }
+        invalidateContentRect(draw.mInvalRegion.getBounds());
+
+        if (mPictureListener != null) {
+            mPictureListener.onNewPicture(WebView.this, capturePicture());
+        }
+
+        // update the zoom information based on the new picture
+        mZoomManager.onNewPicture(draw);
+
+        if (draw.mFocusSizeChanged && inEditingMode()) {
+            mFocusSizeChanged = true;
+        }
+        if (isPictureAfterFirstLayout) {
+            mViewManager.postReadyToDrawAll();
+        }
+    }
+
+    /**
+     * Used when receiving messages for REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID
+     * and UPDATE_TEXT_SELECTION_MSG_ID.  Update the selection of WebTextView.
+     */
+    private void updateTextSelectionFromMessage(int nodePointer,
+            int textGeneration, WebViewCore.TextSelectionData data) {
+        if (textGeneration == mTextGeneration) {
+            if (inEditingMode()
+                    && mWebTextView.isSameTextField(nodePointer)) {
+                mWebTextView.setSelectionFromWebKit(data.mStart, data.mEnd);
+            } else if (mInputConnection != null && mFieldPointer == nodePointer) {
+                mInputConnection.setSelection(data.mStart, data.mEnd);
+            }
+        }
+        nativeSetTextSelection(mNativeClass, data.mSelectTextPtr);
+
+        if (data.mSelectTextPtr != 0 &&
+                (data.mStart != data.mEnd ||
+                (mFieldPointer == nodePointer && mFieldPointer != 0))) {
+            mIsCaretSelection = (data.mStart == data.mEnd);
+            if (!mSelectingText) {
+                setupWebkitSelect();
+            } else if (!mSelectionStarted) {
+                syncSelectionCursors();
+            }
+            if (mIsCaretSelection) {
+                resetCaretTimer();
+            }
+        } else {
+            selectionDone();
+        }
+        invalidate();
+    }
+
+    // Class used to use a dropdown for a <select> element
+    private class InvokeListBox implements Runnable {
+        // Whether the listbox allows multiple selection.
+        private boolean     mMultiple;
+        // Passed in to a list with multiple selection to tell
+        // which items are selected.
+        private int[]       mSelectedArray;
+        // Passed in to a list with single selection to tell
+        // where the initial selection is.
+        private int         mSelection;
+
+        private Container[] mContainers;
+
+        // Need these to provide stable ids to my ArrayAdapter,
+        // which normally does not have stable ids. (Bug 1250098)
+        private class Container extends Object {
+            /**
+             * Possible values for mEnabled.  Keep in sync with OptionStatus in
+             * WebViewCore.cpp
+             */
+            final static int OPTGROUP = -1;
+            final static int OPTION_DISABLED = 0;
+            final static int OPTION_ENABLED = 1;
+
+            String  mString;
+            int     mEnabled;
+            int     mId;
+
+            @Override
+            public String toString() {
+                return mString;
+            }
+        }
+
+        /**
+         *  Subclass ArrayAdapter so we can disable OptionGroupLabels,
+         *  and allow filtering.
+         */
+        private class MyArrayListAdapter extends ArrayAdapter<Container> {
+            public MyArrayListAdapter() {
+                super(mContext,
+                        mMultiple ? com.android.internal.R.layout.select_dialog_multichoice :
+                        com.android.internal.R.layout.webview_select_singlechoice,
+                        mContainers);
+            }
+
+            @Override
+            public View getView(int position, View convertView,
+                    ViewGroup parent) {
+                // Always pass in null so that we will get a new CheckedTextView
+                // Otherwise, an item which was previously used as an <optgroup>
+                // element (i.e. has no check), could get used as an <option>
+                // element, which needs a checkbox/radio, but it would not have
+                // one.
+                convertView = super.getView(position, null, parent);
+                Container c = item(position);
+                if (c != null && Container.OPTION_ENABLED != c.mEnabled) {
+                    // ListView does not draw dividers between disabled and
+                    // enabled elements.  Use a LinearLayout to provide dividers
+                    LinearLayout layout = new LinearLayout(mContext);
+                    layout.setOrientation(LinearLayout.VERTICAL);
+                    if (position > 0) {
+                        View dividerTop = new View(mContext);
+                        dividerTop.setBackgroundResource(
+                                android.R.drawable.divider_horizontal_bright);
+                        layout.addView(dividerTop);
+                    }
+
+                    if (Container.OPTGROUP == c.mEnabled) {
+                        // Currently select_dialog_multichoice uses CheckedTextViews.
+                        // If that changes, the class cast will no longer be valid.
+                        if (mMultiple) {
+                            Assert.assertTrue(convertView instanceof CheckedTextView);
+                            ((CheckedTextView) convertView).setCheckMarkDrawable(null);
+                        }
+                    } else {
+                        // c.mEnabled == Container.OPTION_DISABLED
+                        // Draw the disabled element in a disabled state.
+                        convertView.setEnabled(false);
+                    }
+
+                    layout.addView(convertView);
+                    if (position < getCount() - 1) {
+                        View dividerBottom = new View(mContext);
+                        dividerBottom.setBackgroundResource(
+                                android.R.drawable.divider_horizontal_bright);
+                        layout.addView(dividerBottom);
+                    }
+                    return layout;
+                }
+                return convertView;
+            }
+
+            @Override
+            public boolean hasStableIds() {
+                // AdapterView's onChanged method uses this to determine whether
+                // to restore the old state.  Return false so that the old (out
+                // of date) state does not replace the new, valid state.
+                return false;
+            }
+
+            private Container item(int position) {
+                if (position < 0 || position >= getCount()) {
+                    return null;
+                }
+                return getItem(position);
+            }
+
+            @Override
+            public long getItemId(int position) {
+                Container item = item(position);
+                if (item == null) {
+                    return -1;
+                }
+                return item.mId;
+            }
+
+            @Override
+            public boolean areAllItemsEnabled() {
+                return false;
+            }
+
+            @Override
+            public boolean isEnabled(int position) {
+                Container item = item(position);
+                if (item == null) {
+                    return false;
+                }
+                return Container.OPTION_ENABLED == item.mEnabled;
+            }
+        }
+
+        private InvokeListBox(String[] array, int[] enabled, int[] selected) {
+            mMultiple = true;
+            mSelectedArray = selected;
+
+            int length = array.length;
+            mContainers = new Container[length];
+            for (int i = 0; i < length; i++) {
+                mContainers[i] = new Container();
+                mContainers[i].mString = array[i];
+                mContainers[i].mEnabled = enabled[i];
+                mContainers[i].mId = i;
+            }
+        }
+
+        private InvokeListBox(String[] array, int[] enabled, int selection) {
+            mSelection = selection;
+            mMultiple = false;
+
+            int length = array.length;
+            mContainers = new Container[length];
+            for (int i = 0; i < length; i++) {
+                mContainers[i] = new Container();
+                mContainers[i].mString = array[i];
+                mContainers[i].mEnabled = enabled[i];
+                mContainers[i].mId = i;
+            }
+        }
+
+        /*
+         * Whenever the data set changes due to filtering, this class ensures
+         * that the checked item remains checked.
+         */
+        private class SingleDataSetObserver extends DataSetObserver {
+            private long        mCheckedId;
+            private ListView    mListView;
+            private Adapter     mAdapter;
+
+            /*
+             * Create a new observer.
+             * @param id The ID of the item to keep checked.
+             * @param l ListView for getting and clearing the checked states
+             * @param a Adapter for getting the IDs
+             */
+            public SingleDataSetObserver(long id, ListView l, Adapter a) {
+                mCheckedId = id;
+                mListView = l;
+                mAdapter = a;
+            }
+
+            @Override
+            public void onChanged() {
+                // The filter may have changed which item is checked.  Find the
+                // item that the ListView thinks is checked.
+                int position = mListView.getCheckedItemPosition();
+                long id = mAdapter.getItemId(position);
+                if (mCheckedId != id) {
+                    // Clear the ListView's idea of the checked item, since
+                    // it is incorrect
+                    mListView.clearChoices();
+                    // Search for mCheckedId.  If it is in the filtered list,
+                    // mark it as checked
+                    int count = mAdapter.getCount();
+                    for (int i = 0; i < count; i++) {
+                        if (mAdapter.getItemId(i) == mCheckedId) {
+                            mListView.setItemChecked(i, true);
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+
+        @Override
+        public void run() {
+            final ListView listView = (ListView) LayoutInflater.from(mContext)
+                    .inflate(com.android.internal.R.layout.select_dialog, null);
+            final MyArrayListAdapter adapter = new MyArrayListAdapter();
+            AlertDialog.Builder b = new AlertDialog.Builder(mContext)
+                    .setView(listView).setCancelable(true)
+                    .setInverseBackgroundForced(true);
+
+            if (mMultiple) {
+                b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        mWebViewCore.sendMessage(
+                                EventHub.LISTBOX_CHOICES,
+                                adapter.getCount(), 0,
+                                listView.getCheckedItemPositions());
+                    }});
+                b.setNegativeButton(android.R.string.cancel,
+                        new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        mWebViewCore.sendMessage(
+                                EventHub.SINGLE_LISTBOX_CHOICE, -2, 0);
+                }});
+            }
+            mListBoxDialog = b.create();
+            listView.setAdapter(adapter);
+            listView.setFocusableInTouchMode(true);
+            // There is a bug (1250103) where the checks in a ListView with
+            // multiple items selected are associated with the positions, not
+            // the ids, so the items do not properly retain their checks when
+            // filtered.  Do not allow filtering on multiple lists until
+            // that bug is fixed.
+
+            listView.setTextFilterEnabled(!mMultiple);
+            if (mMultiple) {
+                listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
+                int length = mSelectedArray.length;
+                for (int i = 0; i < length; i++) {
+                    listView.setItemChecked(mSelectedArray[i], true);
+                }
+            } else {
+                listView.setOnItemClickListener(new OnItemClickListener() {
+                    @Override
+                    public void onItemClick(AdapterView<?> parent, View v,
+                            int position, long id) {
+                        // Rather than sending the message right away, send it
+                        // after the page regains focus.
+                        mListBoxMessage = Message.obtain(null,
+                                EventHub.SINGLE_LISTBOX_CHOICE, (int) id, 0);
+                        mListBoxDialog.dismiss();
+                        mListBoxDialog = null;
+                    }
+                });
+                if (mSelection != -1) {
+                    listView.setSelection(mSelection);
+                    listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
+                    listView.setItemChecked(mSelection, true);
+                    DataSetObserver observer = new SingleDataSetObserver(
+                            adapter.getItemId(mSelection), listView, adapter);
+                    adapter.registerDataSetObserver(observer);
+                }
+            }
+            mListBoxDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
+                @Override
+                public void onCancel(DialogInterface dialog) {
+                    mWebViewCore.sendMessage(
+                                EventHub.SINGLE_LISTBOX_CHOICE, -2, 0);
+                    mListBoxDialog = null;
+                }
+            });
+            mListBoxDialog.show();
+        }
+    }
+
+    private Message mListBoxMessage;
+
+    /*
+     * Request a dropdown menu for a listbox with multiple selection.
+     *
+     * @param array Labels for the listbox.
+     * @param enabledArray  State for each element in the list.  See static
+     *      integers in Container class.
+     * @param selectedArray Which positions are initally selected.
+     */
+    void requestListBox(String[] array, int[] enabledArray, int[]
+            selectedArray) {
+        mPrivateHandler.post(
+                new InvokeListBox(array, enabledArray, selectedArray));
+    }
+
+    /*
+     * Request a dropdown menu for a listbox with single selection or a single
+     * <select> element.
+     *
+     * @param array Labels for the listbox.
+     * @param enabledArray  State for each element in the list.  See static
+     *      integers in Container class.
+     * @param selection Which position is initally selected.
+     */
+    void requestListBox(String[] array, int[] enabledArray, int selection) {
+        mPrivateHandler.post(
+                new InvokeListBox(array, enabledArray, selection));
+    }
+
+    // called by JNI
+    private void sendMoveFocus(int frame, int node) {
+        mWebViewCore.sendMessage(EventHub.SET_MOVE_FOCUS,
+                new WebViewCore.CursorData(frame, node, 0, 0));
+    }
+
+    // called by JNI
+    private void sendMoveMouse(int frame, int node, int x, int y) {
+        mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE,
+                new WebViewCore.CursorData(frame, node, x, y));
+    }
+
+    /*
+     * Send a mouse move event to the webcore thread.
+     *
+     * @param removeFocus Pass true to remove the WebTextView, if present.
+     * @param stopPaintingCaret Stop drawing the blinking caret if true.
+     * called by JNI
+     */
+    @SuppressWarnings("unused")
+    private void sendMoveMouseIfLatest(boolean removeFocus, boolean stopPaintingCaret) {
+        if (removeFocus) {
+            clearTextEntry();
+        }
+        mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE_IF_LATEST,
+                stopPaintingCaret ? 1 : 0, 0,
+                cursorData());
+    }
+
+    /**
+     * Called by JNI to send a message to the webcore thread that the user
+     * touched the webpage.
+     * @param touchGeneration Generation number of the touch, to ignore touches
+     *      after a new one has been generated.
+     * @param frame Pointer to the frame holding the node that was touched.
+     * @param node Pointer to the node touched.
+     * @param x x-position of the touch.
+     * @param y y-position of the touch.
+     */
+    private void sendMotionUp(int touchGeneration,
+            int frame, int node, int x, int y) {
+        WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData();
+        touchUpData.mMoveGeneration = touchGeneration;
+        touchUpData.mFrame = frame;
+        touchUpData.mNode = node;
+        touchUpData.mX = x;
+        touchUpData.mY = y;
+        touchUpData.mNativeLayer = nativeScrollableLayer(
+                x, y, touchUpData.mNativeLayerRect, null);
+        mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData);
+    }
+
+
+    private int getScaledMaxXScroll() {
+        int width;
+        if (mHeightCanMeasure == false) {
+            width = getViewWidth() / 4;
+        } else {
+            Rect visRect = new Rect();
+            calcOurVisibleRect(visRect);
+            width = visRect.width() / 2;
+        }
+        // FIXME the divisor should be retrieved from somewhere
+        return viewToContentX(width);
+    }
+
+    private int getScaledMaxYScroll() {
+        int height;
+        if (mHeightCanMeasure == false) {
+            height = getViewHeight() / 4;
+        } else {
+            Rect visRect = new Rect();
+            calcOurVisibleRect(visRect);
+            height = visRect.height() / 2;
+        }
+        // FIXME the divisor should be retrieved from somewhere
+        // the closest thing today is hard-coded into ScrollView.java
+        // (from ScrollView.java, line 363)   int maxJump = height/2;
+        return Math.round(height * mZoomManager.getInvScale());
+    }
+
+    /**
+     * Called by JNI to invalidate view
+     */
+    private void viewInvalidate() {
+        invalidate();
+    }
+
+    /**
+     * Pass the key directly to the page.  This assumes that
+     * nativePageShouldHandleShiftAndArrows() returned true.
+     */
+    private void letPageHandleNavKey(int keyCode, long time, boolean down, int metaState) {
+        int keyEventAction;
+        int eventHubAction;
+        if (down) {
+            keyEventAction = KeyEvent.ACTION_DOWN;
+            eventHubAction = EventHub.KEY_DOWN;
+            playSoundEffect(keyCodeToSoundsEffect(keyCode));
+        } else {
+            keyEventAction = KeyEvent.ACTION_UP;
+            eventHubAction = EventHub.KEY_UP;
+        }
+
+        KeyEvent event = new KeyEvent(time, time, keyEventAction, keyCode,
+                1, (metaState & KeyEvent.META_SHIFT_ON)
+                | (metaState & KeyEvent.META_ALT_ON)
+                | (metaState & KeyEvent.META_SYM_ON)
+                , KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0);
+        mWebViewCore.sendMessage(eventHubAction, event);
+    }
+
+    // return true if the key was handled
+    private boolean navHandledKey(int keyCode, int count, boolean noScroll,
+            long time) {
+        if (mNativeClass == 0) {
+            return false;
+        }
+        mInitialHitTestResult = null;
+        mLastCursorTime = time;
+        mLastCursorBounds = cursorRingBounds();
+        boolean keyHandled
+                = nativeMoveCursor(keyCode, count, noScroll) == false;
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "navHandledKey mLastCursorBounds=" + mLastCursorBounds
+                    + " mLastCursorTime=" + mLastCursorTime
+                    + " handled=" + keyHandled);
+        }
+        if (keyHandled == false) {
+            return keyHandled;
+        }
+        Rect contentCursorRingBounds = cursorRingBounds();
+        if (contentCursorRingBounds.isEmpty()) return keyHandled;
+        Rect viewCursorRingBounds = contentToViewRect(contentCursorRingBounds);
+        // set last touch so that context menu related functions will work
+        mLastTouchX = (viewCursorRingBounds.left + viewCursorRingBounds.right) / 2;
+        mLastTouchY = (viewCursorRingBounds.top + viewCursorRingBounds.bottom) / 2;
+        if (mHeightCanMeasure == false) {
+            return keyHandled;
+        }
+        Rect visRect = new Rect();
+        calcOurVisibleRect(visRect);
+        Rect outset = new Rect(visRect);
+        int maxXScroll = visRect.width() / 2;
+        int maxYScroll = visRect.height() / 2;
+        outset.inset(-maxXScroll, -maxYScroll);
+        if (Rect.intersects(outset, viewCursorRingBounds) == false) {
+            return keyHandled;
+        }
+        // FIXME: Necessary because ScrollView/ListView do not scroll left/right
+        int maxH = Math.min(viewCursorRingBounds.right - visRect.right,
+                maxXScroll);
+        if (maxH > 0) {
+            pinScrollBy(maxH, 0, true, 0);
+        } else {
+            maxH = Math.max(viewCursorRingBounds.left - visRect.left,
+                    -maxXScroll);
+            if (maxH < 0) {
+                pinScrollBy(maxH, 0, true, 0);
+            }
+        }
+        if (mLastCursorBounds.isEmpty()) return keyHandled;
+        if (mLastCursorBounds.equals(contentCursorRingBounds)) {
+            return keyHandled;
+        }
+        if (DebugFlags.WEB_VIEW) {
+            Log.v(LOGTAG, "navHandledKey contentCursorRingBounds="
+                    + contentCursorRingBounds);
+        }
+        requestRectangleOnScreen(viewCursorRingBounds);
+        return keyHandled;
+    }
+
+    /**
+     * @return Whether accessibility script has been injected.
+     */
+    private boolean accessibilityScriptInjected() {
+        // TODO: Maybe the injected script should announce its presence in
+        // the page meta-tag so the nativePageShouldHandleShiftAndArrows
+        // will check that as one of the conditions it looks for
+        return mAccessibilityScriptInjected;
+    }
+
+    /**
+     * Set the background color. It's white by default. Pass
+     * zero to make the view transparent.
+     * @param color   the ARGB color described by Color.java
+     */
+    @Override
+    public void setBackgroundColor(int color) {
+        mBackgroundColor = color;
+        mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color);
+    }
+
+    /**
+     * @deprecated This method is now obsolete.
+     */
+    @Deprecated
+    public void debugDump() {
+        checkThread();
+        nativeDebugDump();
+        mWebViewCore.sendMessage(EventHub.DUMP_NAVTREE);
+    }
+
+    /**
+     * Draw the HTML page into the specified canvas. This call ignores any
+     * view-specific zoom, scroll offset, or other changes. It does not draw
+     * any view-specific chrome, such as progress or URL bars.
+     *
+     * @hide only needs to be accessible to Browser and testing
+     */
+    public void drawPage(Canvas canvas) {
+        calcOurContentVisibleRectF(mVisibleContentRect);
+        nativeDraw(canvas, mVisibleContentRect, 0, 0, false);
+    }
+
+    /**
+     * Enable the communication b/t the webView and VideoViewProxy
+     *
+     * @hide only used by the Browser
+     */
+    public void setHTML5VideoViewProxy(HTML5VideoViewProxy proxy) {
+        mHTML5VideoViewProxy = proxy;
+    }
+
+    /**
+     * Set the time to wait between passing touches to WebCore. See also the
+     * TOUCH_SENT_INTERVAL member for further discussion.
+     *
+     * @hide This is only used by the DRT test application.
+     */
+    public void setTouchInterval(int interval) {
+        mCurrentTouchInterval = interval;
+    }
+
+    /**
+     * Copy text into the clipboard. This is called indirectly from
+     * WebViewCore.
+     * @param text The text to put into the clipboard.
+     */
+    private void copyToClipboard(String text) {
+        ClipboardManager cm = (ClipboardManager)getContext()
+                .getSystemService(Context.CLIPBOARD_SERVICE);
+        ClipData clip = ClipData.newPlainText(getTitle(), text);
+        cm.setPrimaryClip(clip);
+    }
+
+    /**
+     *  Update our cache with updatedText.
+     *  @param updatedText  The new text to put in our cache.
+     *  @hide
+     */
+    protected void updateCachedTextfield(String updatedText) {
+        // Also place our generation number so that when we look at the cache
+        // we recognize that it is up to date.
+        nativeUpdateCachedTextfield(updatedText, mTextGeneration);
+    }
+
+    /*package*/ void autoFillForm(int autoFillQueryId) {
+        mWebViewCore.sendMessage(EventHub.AUTOFILL_FORM, autoFillQueryId, /* unused */0);
+    }
+
+    /* package */ ViewManager getViewManager() {
+        return mViewManager;
+    }
+
+    private static void checkThread() {
+        if (Looper.myLooper() != Looper.getMainLooper()) {
+            Throwable throwable = new Throwable(
+                    "Warning: A WebView method was called on thread '" +
+                    Thread.currentThread().getName() + "'. " +
+                    "All WebView methods must be called on the UI thread. " +
+                    "Future versions of WebView may not support use on other threads.");
+            Log.w(LOGTAG, Log.getStackTraceString(throwable));
+            StrictMode.onWebViewMethodCalledOnWrongThread(throwable);
+        }
+    }
+
+    /** @hide send content invalidate */
+    protected void contentInvalidateAll() {
+        if (mWebViewCore != null && !mBlockWebkitViewMessages) {
+            mWebViewCore.sendMessage(EventHub.CONTENT_INVALIDATE_ALL);
+        }
+    }
+
+    /** @hide discard all textures from tiles */
+    protected void discardAllTextures() {
+        nativeDiscardAllTextures();
+    }
+
+    /**
+     * Begin collecting per-tile profiling data
+     *
+     * @hide only used by profiling tests
+     */
+    public void tileProfilingStart() {
+        nativeTileProfilingStart();
+    }
+    /**
+     * Return per-tile profiling data
+     *
+     * @hide only used by profiling tests
+     */
+    public float tileProfilingStop() {
+        return nativeTileProfilingStop();
+    }
+
+    /** @hide only used by profiling tests */
+    public void tileProfilingClear() {
+        nativeTileProfilingClear();
+    }
+    /** @hide only used by profiling tests */
+    public int tileProfilingNumFrames() {
+        return nativeTileProfilingNumFrames();
+    }
+    /** @hide only used by profiling tests */
+    public int tileProfilingNumTilesInFrame(int frame) {
+        return nativeTileProfilingNumTilesInFrame(frame);
+    }
+    /** @hide only used by profiling tests */
+    public int tileProfilingGetInt(int frame, int tile, String key) {
+        return nativeTileProfilingGetInt(frame, tile, key);
+    }
+    /** @hide only used by profiling tests */
+    public float tileProfilingGetFloat(int frame, int tile, String key) {
+        return nativeTileProfilingGetFloat(frame, tile, key);
+    }
+
+    /**
+     * Checks the focused content for an editable text field. This can be
+     * text input or ContentEditable.
+     * @return true if the focused item is an editable text field.
+     */
+    boolean focusCandidateIsEditableText() {
+        boolean isEditable = false;
+        // TODO: reverse sDisableNavcache so that its name is positive
+        boolean isNavcacheEnabled = !sDisableNavcache;
+        if (isNavcacheEnabled) {
+            isEditable = nativeFocusCandidateIsEditableText(mNativeClass);
+        } else if (mFocusedNode != null) {
+            isEditable = mFocusedNode.mEditable;
+        }
+        return isEditable;
+    }
+
+    // TODO: Remove this
+    Rect cursorRingBounds() {
+        if (sDisableNavcache) {
+            return new Rect();
+        }
+        return nativeGetCursorRingBounds();
+    }
+
+    private native int nativeCacheHitFramePointer();
+    private native boolean  nativeCacheHitIsPlugin();
+    private native Rect nativeCacheHitNodeBounds();
+    private native int nativeCacheHitNodePointer();
+    /* package */ native void nativeClearCursor();
+    private native void     nativeCreate(int ptr, String drawableDir, boolean isHighEndGfx);
+    private native int      nativeCursorFramePointer();
+    private native Rect     nativeCursorNodeBounds();
+    private native int nativeCursorNodePointer();
+    private native boolean  nativeCursorIntersects(Rect visibleRect);
+    private native boolean  nativeCursorIsAnchor();
+    private native boolean  nativeCursorIsTextInput();
+    private native Point    nativeCursorPosition();
+    private native String   nativeCursorText();
+    /**
+     * Returns true if the native cursor node says it wants to handle key events
+     * (ala plugins). This can only be called if mNativeClass is non-zero!
+     */
+    private native boolean  nativeCursorWantsKeyEvents();
+    private native void     nativeDebugDump();
+    private native void     nativeDestroy();
+
+    /**
+     * Draw the picture set with a background color and extra. If
+     * "splitIfNeeded" is true and the return value is not 0, the return value
+     * MUST be passed to WebViewCore with SPLIT_PICTURE_SET message so that the
+     * native allocation can be freed.
+     */
+    private native int nativeDraw(Canvas canvas, RectF visibleRect,
+            int color, int extra, boolean splitIfNeeded);
+    private native void     nativeDumpDisplayTree(String urlOrNull);
+    private native boolean  nativeEvaluateLayersAnimations(int nativeInstance);
+    private native int      nativeGetDrawGLFunction(int nativeInstance, Rect rect,
+            Rect viewRect, RectF visibleRect, float scale, int extras);
+    private native void     nativeUpdateDrawGLFunction(Rect rect, Rect viewRect,
+            RectF visibleRect, float scale);
+    private native void     nativeExtendSelection(int x, int y);
+    /* package */ native int      nativeFocusCandidateFramePointer();
+    /* package */ native boolean  nativeFocusCandidateHasNextTextfield();
+    /* package */ native boolean  nativeFocusCandidateIsPassword();
+    private native boolean  nativeFocusCandidateIsRtlText();
+    private native boolean  nativeFocusCandidateIsTextInput();
+    private native boolean nativeFocusCandidateIsEditableText(int nativeClass);
+    /* package */ native int      nativeFocusCandidateMaxLength();
+    /* package */ native boolean  nativeFocusCandidateIsAutoComplete();
+    /* package */ native boolean  nativeFocusCandidateIsSpellcheck();
+    /* package */ native String   nativeFocusCandidateName();
+    private native Rect     nativeFocusCandidateNodeBounds();
+    /**
+     * @return A Rect with left, top, right, bottom set to the corresponding
+     * padding values in the focus candidate, if it is a textfield/textarea with
+     * a style.  Otherwise return null.  This is not actually a rectangle; Rect
+     * is being used to pass four integers.
+     */
+    private native Rect     nativeFocusCandidatePaddingRect();
+    /* package */ native int      nativeFocusCandidatePointer();
+    private native String   nativeFocusCandidateText();
+    /* package */ native float    nativeFocusCandidateTextSize();
+    /* package */ native int nativeFocusCandidateLineHeight();
+    /**
+     * Returns an integer corresponding to WebView.cpp::type.
+     * See WebTextView.setType()
+     */
+    private native int      nativeFocusCandidateType();
+    private native int      nativeFocusCandidateLayerId();
+    private native boolean  nativeFocusIsPlugin();
+    private native Rect     nativeFocusNodeBounds();
+    /* package */ native int nativeFocusNodePointer();
+    private native Rect     nativeGetCursorRingBounds();
+    private native String   nativeGetSelection();
+    private native boolean  nativeHasCursorNode();
+    private native boolean  nativeHasFocusNode();
+    private native void     nativeHideCursor();
+    private native boolean  nativeHitSelection(int x, int y);
+    private native String   nativeImageURI(int x, int y);
+    private native Rect     nativeLayerBounds(int layer);
+    /* package */ native boolean nativeMoveCursorToNextTextInput();
+    // return true if the page has been scrolled
+    private native boolean  nativeMotionUp(int x, int y, int slop);
+    // returns false if it handled the key
+    private native boolean  nativeMoveCursor(int keyCode, int count,
+            boolean noScroll);
+    private native int      nativeMoveGeneration();
+    /**
+     * @return true if the page should get the shift and arrow keys, rather
+     * than select text/navigation.
+     *
+     * If the focus is a plugin, or if the focus and cursor match and are
+     * a contentEditable element, then the page should handle these keys.
+     */
+    private native boolean  nativePageShouldHandleShiftAndArrows();
+    private native boolean  nativePointInNavCache(int x, int y, int slop);
+    private native void     nativeSelectBestAt(Rect rect);
+    private native void     nativeSelectAt(int x, int y);
+    private native void     nativeSetExtendSelection();
+    private native void     nativeSetFindIsUp(boolean isUp);
+    private native void     nativeSetHeightCanMeasure(boolean measure);
+    private native boolean  nativeSetBaseLayer(int nativeInstance,
+            int layer, Region invalRegion,
+            boolean showVisualIndicator, boolean isPictureAfterFirstLayout);
+    private native int      nativeGetBaseLayer();
+    private native void     nativeShowCursorTimed();
+    private native void     nativeReplaceBaseContent(int content);
+    private native void     nativeCopyBaseContentToPicture(Picture pict);
+    private native boolean  nativeHasContent();
+    private native void     nativeSetSelectionPointer(int nativeInstance,
+            boolean set, float scale, int x, int y);
+    private native boolean  nativeStartSelection(int x, int y);
+    private native void     nativeStopGL();
+    private native Rect     nativeSubtractLayers(Rect content);
+    private native int      nativeTextGeneration();
+    private native void     nativeDiscardAllTextures();
+    private native void     nativeTileProfilingStart();
+    private native float    nativeTileProfilingStop();
+    private native void     nativeTileProfilingClear();
+    private native int      nativeTileProfilingNumFrames();
+    private native int      nativeTileProfilingNumTilesInFrame(int frame);
+    private native int      nativeTileProfilingGetInt(int frame, int tile, String key);
+    private native float    nativeTileProfilingGetFloat(int frame, int tile, String key);
+    // Never call this version except by updateCachedTextfield(String) -
+    // we always want to pass in our generation number.
+    private native void     nativeUpdateCachedTextfield(String updatedText,
+            int generation);
+    private native boolean  nativeWordSelection(int x, int y);
+    // return NO_LEFTEDGE means failure.
+    static final int NO_LEFTEDGE = -1;
+    native int nativeGetBlockLeftEdge(int x, int y, float scale);
+
+    private native void     nativeUseHardwareAccelSkia(boolean enabled);
+
+    // Returns a pointer to the scrollable LayerAndroid at the given point.
+    private native int      nativeScrollableLayer(int x, int y, Rect scrollRect,
+            Rect scrollBounds);
+    /**
+     * Scroll the specified layer.
+     * @param layer Id of the layer to scroll, as determined by nativeScrollableLayer.
+     * @param newX Destination x position to which to scroll.
+     * @param newY Destination y position to which to scroll.
+     * @return True if the layer is successfully scrolled.
+     */
+    private native boolean  nativeScrollLayer(int layer, int newX, int newY);
+    private native void     nativeSetIsScrolling(boolean isScrolling);
+    private native int      nativeGetBackgroundColor();
+    native boolean  nativeSetProperty(String key, String value);
+    native String   nativeGetProperty(String key);
+    /**
+     * See {@link ComponentCallbacks2} for the trim levels and descriptions
+     */
+    private static native void     nativeOnTrimMemory(int level);
+    private static native void nativeSetPauseDrawing(int instance, boolean pause);
+    private static native boolean nativeDisableNavcache();
+    private static native void nativeSetTextSelection(int instance, int selection);
+    private static native int nativeGetHandleLayerId(int instance, int handle,
+            Rect cursorLocation);
+    private static native boolean nativeIsBaseFirst(int instance);
+}