content/renderer/child_frame_compositing_helper.h

   1 // Copyright 2014 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_CHILD_FRAME_COMPOSITING_HELPER_H_
   6 #define CONTENT_RENDERER_CHILD_FRAME_COMPOSITING_HELPER_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/memory/shared_memory.h"
  14 #include "cc/layers/delegated_frame_resource_collection.h"
  15 #include "content/common/content_export.h"
  16 #include "ui/gfx/geometry/size.h"
  17
  18 namespace base {
  19 class SharedMemory;
  20 }
  21
  22 namespace cc {
  23 class CompositorFrame;
  24 class Layer;
  25 class SolidColorLayer;
  26 class DelegatedFrameProvider;
  27 class DelegatedFrameResourceCollection;
  28 class DelegatedRendererLayer;
  29 }
  30
  31 namespace blink {
  32 class WebFrame;
  33 class WebPluginContainer;
  34 class WebLayer;
  35 }
  36
  37 namespace gfx {
  38 class Rect;
  39 class Size;
  40 }
  41
  42 struct FrameHostMsg_CompositorFrameSwappedACK_Params;
  43 struct FrameHostMsg_BuffersSwappedACK_Params;
  44 struct FrameHostMsg_ReclaimCompositorResources_Params;
  45
  46 namespace content {
  47
  48 class BrowserPlugin;
  49 class BrowserPluginManager;
  50 class RenderFrameProxy;
  51
  52 class CONTENT_EXPORT ChildFrameCompositingHelper
  53     : public base::RefCounted<ChildFrameCompositingHelper>,
  54       public cc::DelegatedFrameResourceCollectionClient {
  55  public:
  56   static ChildFrameCompositingHelper* CreateForBrowserPlugin(
  57       const base::WeakPtr<BrowserPlugin>& browser_plugin);
  58   static ChildFrameCompositingHelper* CreateForRenderFrameProxy(
  59       RenderFrameProxy* render_frame_proxy);
  60
  61   void DidCommitCompositorFrame();
  62   void EnableCompositing(bool);
  63   void OnContainerDestroy();
  64   void OnCompositorFrameSwapped(scoped_ptr<cc::CompositorFrame> frame,
  65                                 int route_id,
  66                                 uint32 output_surface_id,
  67                                 int host_id,
  68                                 base::SharedMemoryHandle handle);
  69   void UpdateVisibility(bool);
  70   void ChildFrameGone();
  71
  72   // cc::DelegatedFrameProviderClient implementation.
  73   void UnusedResourcesAreAvailable() override;
  74   void SetContentsOpaque(bool);
  75
  76  protected:
  77   // Friend RefCounted so that the dtor can be non-public.
  78   friend class base::RefCounted<ChildFrameCompositingHelper>;
  79
  80  private:
  81   ChildFrameCompositingHelper(
  82       const base::WeakPtr<BrowserPlugin>& browser_plugin,
  83       blink::WebFrame* frame,
  84       RenderFrameProxy* render_frame_proxy,
  85       int host_routing_id);
  86
  87   virtual ~ChildFrameCompositingHelper();
  88
  89   BrowserPluginManager* GetBrowserPluginManager();
  90   blink::WebPluginContainer* GetContainer();
  91   int GetInstanceID();
  92
  93   void SendCompositorFrameSwappedACKToBrowser(
  94       FrameHostMsg_CompositorFrameSwappedACK_Params& params);
  95   void SendReclaimCompositorResourcesToBrowser(
  96       FrameHostMsg_ReclaimCompositorResources_Params& params);
  97   void CheckSizeAndAdjustLayerProperties(const gfx::Size& new_size,
  98                                          float device_scale_factor,
  99                                          cc::Layer* layer);
 100   void SendReturnedDelegatedResources();
 101
 102   int host_routing_id_;
 103   int last_route_id_;
 104   uint32 last_output_surface_id_;
 105   int last_host_id_;
 106   bool ack_pending_;
 107   bool opaque_;
 108
 109   gfx::Size buffer_size_;
 110
 111   // The lifetime of this weak pointer should be greater than the lifetime of
 112   // other member objects, as they may access this pointer during their
 113   // destruction.
 114   base::WeakPtr<BrowserPlugin> browser_plugin_;
 115   RenderFrameProxy* render_frame_proxy_;
 116
 117   scoped_refptr<cc::DelegatedFrameResourceCollection> resource_collection_;
 118   scoped_refptr<cc::DelegatedFrameProvider> frame_provider_;
 119
 120   scoped_refptr<cc::SolidColorLayer> background_layer_;
 121   scoped_refptr<cc::DelegatedRendererLayer> delegated_layer_;
 122   scoped_ptr<blink::WebLayer> web_layer_;
 123   blink::WebFrame* frame_;
 124
 125   DISALLOW_COPY_AND_ASSIGN(ChildFrameCompositingHelper);
 126 };
 127
 128 }  // namespace content
 129
 130 #endif  // CONTENT_RENDERER_CHILD_FRAME_COMPOSITING_HELPER_H_