auto import from //branches/cupcake/...@130745

1 files changed, 131 insertions, 0 deletions

diff --git a/src/com/android/launcher/LauncherGadgetHost.java b/src/com/android/launcher/LauncherGadgetHost.java
new file mode 100644
index 0000000..4f7e8f2
--- /dev/null
+++ b/src/com/android/launcher/LauncherGadgetHost.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2009 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 com.android.launcher;
+
+import android.content.Context;
+import android.gadget.GadgetHost;
+import android.gadget.GadgetHostView;
+import android.gadget.GadgetInfo;
+import android.graphics.Color;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewConfiguration;
+import android.widget.TextView;
+
+/**
+ * Specific {@link GadgetHost} that creates our {@link LauncherGadgetHostView} which correctly
+ * captures all long-press events.  This ensures that users can always pick up and move gadgets. 
+ */
+public class LauncherGadgetHost extends GadgetHost {
+    public LauncherGadgetHost(Context context, int hostId) {
+        super(context, hostId);
+    }
+    
+    protected GadgetHostView onCreateView(Context context, int gadgetId, GadgetInfo gadget) {
+        return new LauncherGadgetHostView(context);
+    }
+    
+    /**
+     * {@inheritDoc}
+     */
+    public class LauncherGadgetHostView extends GadgetHostView {
+        static final String TAG = "LauncherGadgetHostView";
+
+        private boolean mHasPerformedLongPress;
+        
+        private CheckForLongPress mPendingCheckForLongPress;
+        
+        private LayoutInflater mInflater;
+        
+        public LauncherGadgetHostView(Context context) {
+            super(context);
+            
+            mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            
+            // Prepare our default transition animations
+            setAnimateFirstView(true);
+            setInAnimation(context, android.R.anim.fade_in);
+            setOutAnimation(context, android.R.anim.fade_out);
+        }
+        
+        @Override
+        protected View getErrorView() {
+            return mInflater.inflate(R.layout.gadget_error, this, false);
+        }
+
+        public boolean onInterceptTouchEvent(MotionEvent ev) {
+            
+            // Consume any touch events for ourselves after longpress is triggered
+            if (mHasPerformedLongPress) {
+                mHasPerformedLongPress = false;
+                return true;
+            }
+                
+            // Watch for longpress events at this level to make sure
+            // users can always pick up this Gadget
+            switch (ev.getAction()) {
+                case MotionEvent.ACTION_DOWN: {
+                    postCheckForLongClick();
+                    break;
+                }
+                
+                case MotionEvent.ACTION_UP: {
+                    mHasPerformedLongPress = false;
+                    if (mPendingCheckForLongPress != null) {
+                        removeCallbacks(mPendingCheckForLongPress);
+                    }
+                    break;
+                }
+            }
+            
+            // Otherwise continue letting touch events fall through to children
+            return false;
+        }
+        
+        class CheckForLongPress implements Runnable {
+            private int mOriginalWindowAttachCount;
+
+            public void run() {
+                if ((mParent != null) && hasWindowFocus()
+                        && mOriginalWindowAttachCount == getWindowAttachCount()
+                        && !mHasPerformedLongPress) {
+                    if (performLongClick()) {
+                        mHasPerformedLongPress = true;
+                    }
+                }
+            }
+
+            public void rememberWindowAttachCount() {
+                mOriginalWindowAttachCount = getWindowAttachCount();
+            }
+        }
+
+        private void postCheckForLongClick() {
+            mHasPerformedLongPress = false;
+
+            if (mPendingCheckForLongPress == null) {
+                mPendingCheckForLongPress = new CheckForLongPress();
+            }
+            mPendingCheckForLongPress.rememberWindowAttachCount();
+            postDelayed(mPendingCheckForLongPress, ViewConfiguration.getLongPressTimeout());
+        }
+
+    }
+
+}
+