chrome/renderer/prerender/prerender_webmediaplayer.h

   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 CHROME_RENDERER_PRERENDER_PRERENDER_WEBMEDIAPLAYER_H_
   6 #define CHROME_RENDERER_PRERENDER_PRERENDER_WEBMEDIAPLAYER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "content/public/renderer/render_view_observer.h"
  11 #include "webkit/media/webmediaplayer_impl.h"
  12
  13 namespace prerender {
  14
  15 // Substitute for WebMediaPlayerImpl to be used in prerendered pages. Defers
  16 // the loading of the media till the prerendered page is swapped in.
  17 class PrerenderWebMediaPlayer
  18     : public content::RenderViewObserver,
  19       public webkit_media::WebMediaPlayerImpl {
  20  public:
  21   PrerenderWebMediaPlayer(
  22       content::RenderView* render_view,
  23       WebKit::WebFrame* frame,
  24       WebKit::WebMediaPlayerClient* client,
  25       base::WeakPtr<webkit_media::WebMediaPlayerDelegate> delegate,
  26       const webkit_media::WebMediaPlayerParams& params);
  27   virtual ~PrerenderWebMediaPlayer();
  28
  29   // WebMediaPlayerImpl methods:
  30   virtual void load(const WebKit::WebURL& url, CORSMode cors_mode) OVERRIDE;
  31   virtual void cancelLoad() OVERRIDE;
  32
  33  private:
  34   // RenderViewObserver method:
  35   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  36
  37   void OnSetIsPrerendering(bool is_prerendering);
  38
  39   bool is_prerendering_;
  40   bool url_loaded_;
  41   scoped_ptr<WebKit::WebURL> url_to_load_;
  42   CORSMode cors_mode_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(PrerenderWebMediaPlayer);
  45 };
  46
  47 }  // namespace prerender
  48
  49 #endif  // CHROME_RENDERER_PRERENDER_PRERENDER_WEBMEDIAPLAYER_H_