content/renderer/render_widget_fullscreen_pepper.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 CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
   6 #define CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  11 #include "content/renderer/mouse_lock_dispatcher.h"
  12 #include "content/renderer/pepper/pepper_parent_context_provider.h"
  13 #include "content/renderer/render_widget_fullscreen.h"
  14 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
  15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebWidget.h"
  16 #include "webkit/plugins/ppapi/fullscreen_container.h"
  17
  18 namespace webkit {
  19 namespace ppapi {
  20
  21 class PluginInstance;
  22
  23 }  // namespace ppapi
  24 }  // namespace webkit
  25
  26 namespace content {
  27 class WebGraphicsContext3DCommandBufferImpl;
  28
  29 // A RenderWidget that hosts a fullscreen pepper plugin. This provides a
  30 // FullscreenContainer that the plugin instance can callback into to e.g.
  31 // invalidate rects.
  32 class RenderWidgetFullscreenPepper :
  33     public RenderWidgetFullscreen,
  34     public webkit::ppapi::FullscreenContainer,
  35     public PepperParentContextProvider,
  36     public WebGraphicsContext3DSwapBuffersClient {
  37  public:
  38   static RenderWidgetFullscreenPepper* Create(
  39       int32 opener_id,
  40       webkit::ppapi::PluginInstance* plugin,
  41       const GURL& active_url,
  42       const WebKit::WebScreenInfo& screen_info);
  43
  44   // WebGraphicscontext3DSwapBuffersClient implementation
  45   virtual void OnViewContextSwapBuffersPosted() OVERRIDE;
  46   virtual void OnViewContextSwapBuffersComplete() OVERRIDE;
  47   virtual void OnViewContextSwapBuffersAborted() OVERRIDE;
  48
  49   // pepper::FullscreenContainer API.
  50   virtual void Invalidate() OVERRIDE;
  51   virtual void InvalidateRect(const WebKit::WebRect& rect) OVERRIDE;
  52   virtual void ScrollRect(int dx, int dy, const WebKit::WebRect& rect) OVERRIDE;
  53   virtual void Destroy() OVERRIDE;
  54   virtual void DidChangeCursor(const WebKit::WebCursorInfo& cursor) OVERRIDE;
  55   virtual webkit::ppapi::PluginDelegate::PlatformContext3D*
  56       CreateContext3D() OVERRIDE;
  57   virtual void ReparentContext(
  58       webkit::ppapi::PluginDelegate::PlatformContext3D*) OVERRIDE;
  59
  60   // IPC::Listener implementation. This overrides the implementation
  61   // in RenderWidgetFullscreen.
  62   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
  63
  64   WebGraphicsContext3DCommandBufferImpl* context() const { return context_; }
  65   void SwapBuffers();
  66
  67   // Could be NULL when this widget is closing.
  68   webkit::ppapi::PluginInstance* plugin() const { return plugin_; }
  69
  70   MouseLockDispatcher* mouse_lock_dispatcher() const {
  71     return mouse_lock_dispatcher_.get();
  72   }
  73
  74  protected:
  75   RenderWidgetFullscreenPepper(webkit::ppapi::PluginInstance* plugin,
  76                                const GURL& active_url,
  77                                const WebKit::WebScreenInfo& screen_info);
  78   virtual ~RenderWidgetFullscreenPepper();
  79
  80   // RenderWidget API.
  81   virtual void WillInitiatePaint() OVERRIDE;
  82   virtual void DidInitiatePaint() OVERRIDE;
  83   virtual void DidFlushPaint() OVERRIDE;
  84   virtual void Close() OVERRIDE;
  85   virtual webkit::ppapi::PluginInstance* GetBitmapForOptimizedPluginPaint(
  86       const gfx::Rect& paint_bounds,
  87       TransportDIB** dib,
  88       gfx::Rect* location,
  89       gfx::Rect* clip,
  90       float* scale_factor) OVERRIDE;
  91   virtual void OnResize(const gfx::Size& new_size,
  92                         const gfx::Rect& resizer_rect,
  93                         bool is_fullscreen) OVERRIDE;
  94
  95   // RenderWidgetFullscreen API.
  96   virtual WebKit::WebWidget* CreateWebWidget() OVERRIDE;
  97
  98   // RenderWidget overrides.
  99   virtual bool SupportsAsynchronousSwapBuffers() OVERRIDE;
 100
 101  private:
 102   // Creates the GL context for compositing.
 103   void CreateContext();
 104
 105   // Initialize the GL states and resources for compositing.
 106   bool InitContext();
 107
 108   // Checks (and returns) whether accelerated compositing should be on or off,
 109   // and notify the browser.
 110   bool CheckCompositing();
 111
 112   // Implementation of PepperParentContextProvider.
 113   virtual WebGraphicsContext3DCommandBufferImpl*
 114       GetParentContextForPlatformContext3D() OVERRIDE;
 115
 116   // URL that is responsible for this widget, passed to ggl::CreateViewContext.
 117   GURL active_url_;
 118
 119   // The plugin instance this widget wraps.
 120   webkit::ppapi::PluginInstance* plugin_;
 121
 122   // GL context for compositing.
 123   WebGraphicsContext3DCommandBufferImpl* context_;
 124   unsigned int buffer_;
 125   unsigned int program_;
 126
 127   base::WeakPtrFactory<RenderWidgetFullscreenPepper> weak_ptr_factory_;
 128
 129   scoped_ptr<MouseLockDispatcher> mouse_lock_dispatcher_;
 130
 131   DISALLOW_COPY_AND_ASSIGN(RenderWidgetFullscreenPepper);
 132 };
 133
 134 }  // namespace content
 135
 136 #endif  // CONTENT_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_