1 files changed, 106 insertions, 0 deletions
diff --git a/src/com/android/browser/FakeWebView.java b/src/com/android/browser/FakeWebView.java
new file mode 100644
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+++ b/src/com/android/browser/FakeWebView.java
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+/*
+ * Copyright (C) 2008 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.browser;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Picture;
+import android.util.AttributeSet;
+import android.view.View;
+import android.webkit.WebView;
+import android.widget.ImageView;
+
+import android.util.Log;
+
+/**
+ *  This class is used by ImageAdapter to draw a representation of each tab. It 
+ *  overrides ImageView so it can be used for the new tab image as well.
+ */
+public class FakeWebView extends ImageView {
+    private TabControl.Tab mTab;
+    private boolean        mUsesResource;
+
+    private class Listener implements WebView.PictureListener {
+        public void onNewPicture(WebView view, Picture p) {
+            FakeWebView.this.invalidate();
+        }
+    };
+
+    public FakeWebView(Context context) {
+        this(context, null);
+    }
+    
+    public FakeWebView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+    
+    public FakeWebView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        if (mUsesResource) {
+            super.onDraw(canvas);
+        } else {
+            // Always draw white behind the picture just in case the picture
+            // draws nothing.
+            // FIXME: We used to draw white only when the WebView was null but
+            // sometimes the picture was empty. So now we always draw white. It
+            // would be nice to know if the picture is empty so we can avoid
+            // drawing white.
+            canvas.drawColor(Color.WHITE);
+            if (mTab != null) {
+                final WebView w = mTab.getTopWindow();
+                if (w != null) {
+                    Picture p = w.capturePicture();
+                    canvas.save();
+                    float scale = getWidth() * w.getScale() / w.getWidth();
+                    canvas.scale(scale, scale);
+                    canvas.translate(-w.getScrollX(), -w.getScrollY());
+                    canvas.drawPicture(p);
+                    canvas.restore();
+                }
+            }
+        }
+    }
+    
+    @Override
+    public void setImageResource(int resId) {
+        mUsesResource = true;
+        mTab = null;
+        super.setImageResource(resId);
+    }
+
+    /**
+     *  Set a WebView for this FakeWebView to represent.
+     *  @param  v WebView whose picture and other data will be used in onDraw.
+     */
+    public void setTab(TabControl.Tab t) {
+        mUsesResource = false;
+        mTab = t;
+        if (t != null && t.getWebView() != null) {
+            Listener l = new Listener();
+            t.getWebView().setPictureListener(l);
+            if (t.getSubWebView() != null) {
+                t.getSubWebView().setPictureListener(l);
+            }
+        }
+    }
+}