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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_
      6 #define ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/compiler_specific.h"
     10 #include "base/timer/timer.h"
     11 #include "content/public/renderer/render_view_observer.h"
     12 #include "third_party/skia/include/core/SkColor.h"
     13 #include "ui/gfx/size.h"
     14 
     15 namespace blink {
     16 
     17 class WebNode;
     18 class WebURL;
     19 
     20 }  // namespace blink
     21 
     22 namespace android_webview {
     23 
     24 // Render process side of AwRenderViewHostExt, this provides cross-process
     25 // implementation of miscellaneous WebView functions that we need to poke
     26 // WebKit directly to implement (and that aren't needed in the chrome app).
     27 class AwRenderViewExt : public content::RenderViewObserver {
     28  public:
     29   static void RenderViewCreated(content::RenderView* render_view);
     30 
     31  private:
     32   AwRenderViewExt(content::RenderView* render_view);
     33   virtual ~AwRenderViewExt();
     34 
     35   // RenderView::Observer:
     36   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     37   virtual void FocusedNodeChanged(const blink::WebNode& node) OVERRIDE;
     38   virtual void DidCommitCompositorFrame() OVERRIDE;
     39   virtual void DidUpdateLayout() OVERRIDE;
     40   virtual void Navigate(const GURL& url) OVERRIDE;
     41 
     42   void OnDocumentHasImagesRequest(int id);
     43 
     44   void OnDoHitTest(int view_x, int view_y);
     45 
     46   void OnSetTextZoomFactor(float zoom_factor);
     47 
     48   void OnResetScrollAndScaleState();
     49 
     50   void OnSetInitialPageScale(double page_scale_factor);
     51 
     52   void OnSetBackgroundColor(SkColor c);
     53 
     54   void UpdatePageScaleFactor();
     55 
     56   void CheckContentsSize();
     57 
     58   bool capture_picture_enabled_;
     59 
     60   float page_scale_factor_;
     61 
     62   gfx::Size last_sent_contents_size_;
     63   base::OneShotTimer<AwRenderViewExt> check_contents_size_timer_;
     64 
     65   DISALLOW_COPY_AND_ASSIGN(AwRenderViewExt);
     66 };
     67 
     68 }  // namespace android_webview
     69 
     70 #endif  // ANDROID_WEBVIEW_RENDERER_AW_RENDER_VIEW_EXT_H_
     71