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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:45 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:45 -0800
commitd83a98f4ce9cfa908f5c54bbd70f03eec07e7553 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /core/java/android/webkit/WebHistoryItem.java
parent076357b8567458d4b6dfdcf839ef751634cd2bfb (diff)
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-/*
- * 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.graphics.Bitmap;
-
-/**
- * A convenience class for accessing fields in an entry in the back/forward list
- * of a WebView. Each WebHistoryItem is a snapshot of the requested history
- * item. Each history item may be updated during the load of a page.
- * @see WebBackForwardList
- */
-public class WebHistoryItem implements Cloneable {
- // Global identifier count.
- private static int sNextId = 0;
- // Unique identifier.
- private final int mId;
- // The title of this item's document.
- private String mTitle;
- // The base url of this item.
- private String mUrl;
- // The original requested url of this item.
- private String mOriginalUrl;
- // The favicon for this item.
- private Bitmap mFavicon;
- // The pre-flattened data used for saving the state.
- private byte[] mFlattenedData;
-
- /**
- * Basic constructor that assigns a unique id to the item. Called by JNI
- * only.
- */
- private WebHistoryItem() {
- synchronized (WebHistoryItem.class) {
- mId = sNextId++;
- }
- }
-
- /**
- * Construct a new WebHistoryItem with initial flattened data.
- * @param data The pre-flattened data coming from restoreState.
- */
- /*package*/ WebHistoryItem(byte[] data) {
- mUrl = null; // This will be updated natively
- mFlattenedData = data;
- synchronized (WebHistoryItem.class) {
- mId = sNextId++;
- }
- }
-
- /**
- * Construct a clone of a WebHistoryItem from the given item.
- * @param item The history item to clone.
- */
- private WebHistoryItem(WebHistoryItem item) {
- mUrl = item.mUrl;
- mTitle = item.mTitle;
- mFlattenedData = item.mFlattenedData;
- mFavicon = item.mFavicon;
- mId = item.mId;
-}
-
- /**
- * Return an identifier for this history item. If an item is a copy of
- * another item, the identifiers will be the same even if they are not the
- * same object.
- * @return The id for this item.
- */
- public int getId() {
- return mId;
- }
-
- /**
- * Return the url of this history item. The url is the base url of this
- * history item. See getTargetUrl() for the url that is the actual target of
- * this history item.
- * @return The base url of this history item.
- * Note: The VM ensures 32-bit atomic read/write operations so we don't have
- * to synchronize this method.
- */
- public String getUrl() {
- return mUrl;
- }
-
- /**
- * Return the original url of this history item. This was the requested
- * url, the final url may be different as there might have been
- * redirects while loading the site.
- * @return The original url of this history item.
- *
- * @hide pending API Council approval
- */
- public String getOriginalUrl() {
- return mOriginalUrl;
- }
-
- /**
- * Return the document title of this history item.
- * @return The document title of this history item.
- * Note: The VM ensures 32-bit atomic read/write operations so we don't have
- * to synchronize this method.
- */
- public String getTitle() {
- return mTitle;
- }
-
- /**
- * Return the favicon of this history item or null if no favicon was found.
- * @return A Bitmap containing the favicon for this history item or null.
- * Note: The VM ensures 32-bit atomic read/write operations so we don't have
- * to synchronize this method.
- */
- public Bitmap getFavicon() {
- return mFavicon;
- }
-
- /**
- * Set the favicon.
- * @param icon A Bitmap containing the favicon for this history item.
- * Note: The VM ensures 32-bit atomic read/write operations so we don't have
- * to synchronize this method.
- */
- /*package*/ void setFavicon(Bitmap icon) {
- mFavicon = icon;
- }
-
- /**
- * Get the pre-flattened data.
- * Note: The VM ensures 32-bit atomic read/write operations so we don't have
- * to synchronize this method.
- */
- /*package*/ byte[] getFlattenedData() {
- return mFlattenedData;
- }
-
- /**
- * Inflate this item.
- * Note: The VM ensures 32-bit atomic read/write operations so we don't have
- * to synchronize this method.
- */
- /*package*/ void inflate(int nativeFrame) {
- inflate(nativeFrame, mFlattenedData);
- }
-
- /**
- * Clone the history item for use by clients of WebView.
- */
- protected synchronized WebHistoryItem clone() {
- return new WebHistoryItem(this);
- }
-
- /* Natively inflate this item, this method is called in the WebCore thread.
- */
- private native void inflate(int nativeFrame, byte[] data);
-
- /* Called by jni when the item is updated */
- private void update(String url, String originalUrl, String title,
- Bitmap favicon, byte[] data) {
- mUrl = url;
- mOriginalUrl = originalUrl;
- mTitle = title;
- mFavicon = favicon;
- mFlattenedData = data;
- }
-}