[Android WebView] Implement the capture picture API.

android_webview/renderer/aw_render_view_ext.cc

 // 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.
 
 #include "android_webview/renderer/aw_render_view_ext.h"
 
 #include <string>
 
 #include "android_webview/common/aw_hit_test_data.h"
 #include "android_webview/common/render_view_messages.h"
@@ skipping 31 matching lines @@
   }
   return false;
 }
 
 }
 
 AwRenderViewExt::AwRenderViewExt(content::RenderView* render_view)
     : content::RenderViewObserver(render_view) {
   render_view->GetWebView()->setPermissionClient(this);
   // TODO(leandrogracia): enable once the feature is available in RenderView.
+  // TODO(leandrogracia): remove when SW rendering uses Ubercompositor.

[joth, 2013/01/12 02:36:28]

Haha It was bad enough as a TODO to enable the code, but really, a TODO to
remove some not yet enabled code? :-D ;-)
But yeah I think this is best we can do for now..

[Leandro Graciá Gil, 2013/01/12 17:59:14]

First TODO get SW rendering work using CapturePicture once the API is ready in
RenderView. Second TODO to remove this in favor of the real Ubercompositor SW
rendering when we can. Yes, just the TODOs look a bit silly...

+  // Until then we need the callback enabled for SW mode invalidation.
   //render_view->SetCapturePictureCallback(
   //    base::Bind(&AwRenderViewExt::OnPictureUpdate, AsWeakPtr()));
 }
 
 AwRenderViewExt::~AwRenderViewExt() {
   // TODO(leandrogracia): enable once the feature is available in RenderView.
   //render_view()->SetCapturePictureCallback(
   //    content::RenderView::CapturePictureCallback());
   RendererPictureMap::GetInstance()->ClearRendererPicture(routing_id());
 }
 
 // static
 void AwRenderViewExt::RenderViewCreated(content::RenderView* render_view) {
   new AwRenderViewExt(render_view);  // |render_view| takes ownership.
 }
 
 bool AwRenderViewExt::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AwRenderViewExt, message)
     IPC_MESSAGE_HANDLER(AwViewMsg_DocumentHasImages, OnDocumentHasImagesRequest)
     IPC_MESSAGE_HANDLER(AwViewMsg_DoHitTest, OnDoHitTest)
     IPC_MESSAGE_HANDLER(AwViewMsg_EnableCapturePictureCallback,
                         OnEnableCapturePictureCallback)
+    IPC_MESSAGE_HANDLER_DELAY_REPLY(AwViewMsg_CapturePictureSync,
+                        OnCapturePictureSync)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void AwRenderViewExt::OnDocumentHasImagesRequest(int id) {
   bool hasImages = false;
   if (render_view()) {
     WebKit::WebView* webview = render_view()->GetWebView();
     if (webview) {
@@ skipping 113 matching lines @@
   //render_view()->SetCapturePictureCallback(enable ?
   //    base::Bind(&AwRenderViewExt::OnPictureUpdate, AsWeakPtr()) :
   //    content::RenderView::CapturePictureCallback());
 }
 
 void AwRenderViewExt::OnPictureUpdate(skia::RefPtr<SkPicture> picture) {
   RendererPictureMap::GetInstance()->SetRendererPicture(routing_id(), picture);
   Send(new AwViewHostMsg_PictureUpdated(routing_id()));
 }
 
+void AwRenderViewExt::OnCapturePictureSync(IPC::Message* reply_msg) {
+  // TODO(leandrogracia): enable once the feature is available in RenderView.
+  //RendererPictureMap::GetInstance()->SetRendererPicture(
+  //    routing_id(), render_view()->CapturePicture());
+  Send(reply_msg);
+}
+
 }  // namespace android_webview