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1 // Copyright 2016 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_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_COMPOSITOR_FRAME_SINK_MAN
AGER_H_ | |
6 #define CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_COMPOSITOR_FRAME_SINK_MAN
AGER_H_ | |
7 | |
8 #include "base/memory/weak_ptr.h" | |
9 #include "cc/surfaces/surface_id.h" | |
10 #include "cc/surfaces/surface_observer.h" | |
11 #include "content/browser/renderer_host/offscreen_canvas_surface_impl.h" | |
12 | |
13 namespace content { | |
14 | |
15 class CONTENT_EXPORT OffscreenCanvasCompositorFrameSinkManager | |
16 : public cc::SurfaceObserver { | |
17 public: | |
18 OffscreenCanvasCompositorFrameSinkManager(); | |
19 virtual ~OffscreenCanvasCompositorFrameSinkManager(); | |
20 | |
21 static OffscreenCanvasCompositorFrameSinkManager* GetInstance(); | |
22 | |
23 void RegisterOffscreenCanvasSurfaceInstance( | |
24 const cc::FrameSinkId& frame_sink_id, | |
25 OffscreenCanvasSurfaceImpl* offscreen_canvas_surface); | |
26 void UnregisterOffscreenCanvasSurfaceInstance( | |
27 const cc::FrameSinkId& frame_sink_id); | |
28 OffscreenCanvasSurfaceImpl* GetSurfaceInstance( | |
29 const cc::FrameSinkId& frame_sink_id); | |
30 | |
31 private: | |
32 friend class OffscreenCanvasCompositorFrameSinkManagerTest; | |
33 | |
34 // cc::SurfaceObserver implementation. | |
35 void OnSurfaceCreated(const cc::SurfaceInfo& surface_info) override; | |
36 void OnSurfaceDamaged(const cc::SurfaceId&, bool* changed) override {} | |
37 | |
38 // When an OffscreenCanvasSurfaceImpl instance is destructed, it will | |
39 // unregister the corresponding entry from this map. | |
40 std::unordered_map<cc::FrameSinkId, | |
41 OffscreenCanvasSurfaceImpl*, | |
42 cc::FrameSinkIdHash> | |
43 registered_surface_instances_; | |
44 DISALLOW_COPY_AND_ASSIGN(OffscreenCanvasCompositorFrameSinkManager); | |
45 }; | |
46 | |
47 } // namespace content | |
48 | |
49 #endif // CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_COMPOSITOR_FRAME_SINK_
MANAGER_H_ | |
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