| // 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 CanvasSurfaceLayerBridge_h |
| #define CanvasSurfaceLayerBridge_h |
| |
| #include <memory> |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "cc/surfaces/surface_id.h" |
| #include "cc/surfaces/surface_reference_factory.h" |
| #include "mojo/public/cpp/bindings/binding.h" |
| #include "platform/PlatformExport.h" |
| #include "public/platform/modules/offscreencanvas/offscreen_canvas_surface.mojom-blink.h" |
| |
| namespace cc { |
| class Layer; |
| class SurfaceInfo; |
| } // namespace cc |
| |
| namespace blink { |
| |
| class WebLayer; |
| class WebLayerTreeView; |
| |
| class PLATFORM_EXPORT CanvasSurfaceLayerBridgeObserver { |
| public: |
| CanvasSurfaceLayerBridgeObserver() {} |
| virtual ~CanvasSurfaceLayerBridgeObserver() {} |
| |
| virtual void OnWebLayerReplaced() = 0; |
| }; |
| |
| class PLATFORM_EXPORT CanvasSurfaceLayerBridge |
| : NON_EXPORTED_BASE( |
| public blink::mojom::blink::OffscreenCanvasSurfaceClient) { |
| public: |
| explicit CanvasSurfaceLayerBridge(CanvasSurfaceLayerBridgeObserver*, |
| WebLayerTreeView*); |
| ~CanvasSurfaceLayerBridge(); |
| void CreateSolidColorLayer(); |
| WebLayer* GetWebLayer() const { return web_layer_.get(); } |
| const cc::FrameSinkId& GetFrameSinkId() const { return frame_sink_id_; } |
| |
| // Implementation of blink::mojom::blink::OffscreenCanvasSurfaceClient |
| void OnSurfaceCreated(const cc::SurfaceInfo&) override; |
| |
| void SatisfyCallback(const cc::SurfaceSequence&); |
| void RequireCallback(const cc::SurfaceId&, const cc::SurfaceSequence&); |
| |
| private: |
| scoped_refptr<cc::Layer> cc_layer_; |
| std::unique_ptr<WebLayer> web_layer_; |
| |
| scoped_refptr<cc::SurfaceReferenceFactory> ref_factory_; |
| base::WeakPtrFactory<CanvasSurfaceLayerBridge> weak_factory_; |
| |
| CanvasSurfaceLayerBridgeObserver* observer_; |
| |
| mojom::blink::OffscreenCanvasSurfacePtr service_; |
| mojo::Binding<blink::mojom::blink::OffscreenCanvasSurfaceClient> binding_; |
| |
| const cc::FrameSinkId frame_sink_id_; |
| cc::SurfaceId current_surface_id_; |
| const cc::FrameSinkId parent_frame_sink_id_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // CanvasSurfaceLayerBridge_h |