smooth navscreen animation

Change-Id: I87bfba8a18a1aaeffa95d15e4ddb4313dd2752d9

1 files changed, 17 insertions, 0 deletions

diff --git a/src/com/android/browser/BrowserWebView.java b/src/com/android/browser/BrowserWebView.java
index 6111aa698..9be9ad9b0 100644
--- a/src/com/android/browser/BrowserWebView.java
+++ b/src/com/android/browser/BrowserWebView.java
@@ -17,6 +17,8 @@
 package com.android.browser;
 
 import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
@@ -34,6 +36,7 @@ public class BrowserWebView extends WebView implements Runnable {
     private boolean mBackgroundRemoved = false;
     private boolean mUserInitiated = false;
     private TitleBarBase mTitleBar;
+    private Bitmap mCapture;
 
     /**
      * @param context
@@ -72,6 +75,12 @@ public class BrowserWebView extends WebView implements Runnable {
     }
 
     @Override
+    protected void onSizeChanged(int w, int h, int ow, int oh) {
+        super.onSizeChanged(w, h, ow, oh);
+        mCapture = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
+    }
+
+    @Override
     protected int getTitleHeight() {
         return (mTitleBar != null) ? mTitleBar.getEmbeddedHeight() : 0;
     }
@@ -138,6 +147,14 @@ public class BrowserWebView extends WebView implements Runnable {
         public void onScroll(int visibleTitleHeight, boolean userInitiated);
     }
 
+    protected Bitmap capture() {
+        if (mCapture == null) return null;
+        Canvas c = new Canvas(mCapture);
+        c.translate(-getScrollX(), -(getScrollY() + getVisibleTitleHeight()));
+        onDraw(c);
+        return mCapture;
+    }
+
     @Override
     protected void onDraw(android.graphics.Canvas c) {
         super.onDraw(c);