ContentShell rendering support on Android.

content/shell/android/java/src/org/chromium/content_shell/ShellManager.java

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content_shell;
 
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
+import android.view.Surface;
+import android.view.SurfaceView;
+import android.view.SurfaceHolder;
 import android.widget.FrameLayout;
 
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 
 /**
  * Container and generator of ShellViews.
  */
 @JNINamespace("content")
 public class ShellManager extends FrameLayout {
 
     private Shell mActiveShell;
 
+    private String mStartupUrl = ContentShellActivity.DEFAULT_SHELL_URL;
+
+    // The target for all content rendering.
+    private SurfaceView mSurfaceView;
+
     /**
      * Constructor for inflating via XML.
      */
     public ShellManager(Context context, AttributeSet attrs) {
         super(context, attrs);
         nativeInit(this);
+
+        mSurfaceView = new SurfaceView(context);
+        mSurfaceView.getHolder().addCallback(new SurfaceHolder.Callback() {
+            @Override
+            public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+                nativeSurfaceSetSize(width, height);
+            }
+
+            @Override
+            public void surfaceCreated(SurfaceHolder holder) {
+                nativeSurfaceCreated(holder.getSurface());
+                mActiveShell.loadUrl(mStartupUrl);
+            }
+
+            @Override
+            public void surfaceDestroyed(SurfaceHolder holder) {
+                nativeSurfaceDestroyed();
+            }
+        });
     }
 
     /**
+     * Sets the startup URL for new shell windows.
+     */
+    public void setStartupUrl(String url) {
+        mStartupUrl = url;
+    }
+
+    /**
      * @return The currently visible shell view or null if one is not showing.
      */
     protected Shell getActiveShell() {
         return mActiveShell;
     }
 
     /**
      * Creates a new shell pointing to the specified URL.
      * @param url The URL the shell should load upon creation.
      */
     public void launchShell(String url) {
         nativeLaunchShell(url);
     }
 
     @SuppressWarnings("unused")
     @CalledByNative
     private Object createShell() {
         LayoutInflater inflater =
                 (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         Shell shellView = (Shell) inflater.inflate(R.layout.shell_view, null);
+        shellView.setSurfaceView(mSurfaceView);
 
         removeAllViews();
         addView(shellView, new FrameLayout.LayoutParams(
                 FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
         mActiveShell = shellView;
 
         return shellView;
     }
 
     private static native void nativeInit(Object shellManagerInstance);
     private static native void nativeLaunchShell(String url);
+    private static native void nativeSurfaceCreated(Surface surface);
+    private static native void nativeSurfaceDestroyed();
+    private static native void nativeSurfaceSetSize(int width, int height);
 }