| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_PROVIDER_IMPL_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_PROVIDER_IMPL_H_ |
| |
| #include <memory> |
| |
| #include "base/containers/flat_map.h" |
| #include "cc/surfaces/frame_sink_id.h" |
| #include "content/common/content_export.h" |
| #include "mojo/public/cpp/bindings/binding_set.h" |
| #include "third_party/WebKit/public/platform/modules/offscreencanvas/offscreen_canvas_surface.mojom.h" |
| |
| namespace content { |
| |
| class OffscreenCanvasSurfaceImpl; |
| |
| // Creates OffscreenCanvasSurfaces and MojoCompositorFrameSinks for a renderer. |
| class CONTENT_EXPORT OffscreenCanvasProviderImpl |
| : public blink::mojom::OffscreenCanvasProvider { |
| public: |
| explicit OffscreenCanvasProviderImpl(uint32_t renderer_client_id); |
| ~OffscreenCanvasProviderImpl() override; |
| |
| void Add(blink::mojom::OffscreenCanvasProviderRequest request); |
| |
| // blink::mojom::OffscreenCanvasProvider implementation. |
| void CreateOffscreenCanvasSurface( |
| const cc::FrameSinkId& parent_frame_sink_id, |
| const cc::FrameSinkId& frame_sink_id, |
| blink::mojom::OffscreenCanvasSurfaceClientPtr client, |
| blink::mojom::OffscreenCanvasSurfaceRequest request) override; |
| void CreateCompositorFrameSink( |
| const cc::FrameSinkId& frame_sink_id, |
| cc::mojom::MojoCompositorFrameSinkClientPtr client, |
| cc::mojom::MojoCompositorFrameSinkRequest request) override; |
| |
| private: |
| friend class OffscreenCanvasProviderImplTest; |
| |
| // Destroys the |canvas_map_| entry for |frame_sink_id|. Provided as a |
| // callback to each OffscreenCanvasSurfaceImpl so they can destroy themselves. |
| void DestroyOffscreenCanvasSurface(cc::FrameSinkId frame_sink_id); |
| |
| // FrameSinkIds for offscreen canvas must use the renderer client id. |
| const uint32_t renderer_client_id_; |
| |
| mojo::BindingSet<blink::mojom::OffscreenCanvasProvider> bindings_; |
| |
| base::flat_map<cc::FrameSinkId, std::unique_ptr<OffscreenCanvasSurfaceImpl>> |
| canvas_map_; |
| |
| DISALLOW_COPY_AND_ASSIGN(OffscreenCanvasProviderImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_PROVIDER_IMPL_H_ |