| // 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_SURFACE_IMPL_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_SURFACE_IMPL_H_ |
| |
| #include "cc/surfaces/surface_id.h" |
| #include "mojo/public/cpp/bindings/strong_binding.h" |
| #include "third_party/WebKit/public/platform/modules/offscreencanvas/offscreen_canvas_surface.mojom.h" |
| |
| namespace content { |
| |
| // The browser owned object for an offscreen canvas connection. Holds |
| // connections to both the renderer and frame sink manager. |
| class CONTENT_EXPORT OffscreenCanvasSurfaceImpl |
| : public blink::mojom::OffscreenCanvasSurface { |
| public: |
| OffscreenCanvasSurfaceImpl( |
| const cc::FrameSinkId& parent_frame_sink_id, |
| const cc::FrameSinkId& frame_sink_id, |
| blink::mojom::OffscreenCanvasSurfaceClientPtr client); |
| ~OffscreenCanvasSurfaceImpl() override; |
| |
| static void Create(const cc::FrameSinkId& parent_frame_sink_id, |
| const cc::FrameSinkId& frame_sink_id, |
| blink::mojom::OffscreenCanvasSurfaceClientPtr client, |
| blink::mojom::OffscreenCanvasSurfaceRequest request); |
| |
| // Creates a MojoCompositorFrameSink connection to FrameSinkManager for an |
| // offscreen canvas client. The corresponding private interface will be owned |
| // here to control CompositorFrameSink lifetime. This should only ever be |
| // called once. |
| void CreateCompositorFrameSink( |
| cc::mojom::MojoCompositorFrameSinkClientPtr client, |
| cc::mojom::MojoCompositorFrameSinkRequest request); |
| |
| void OnSurfaceCreated(const cc::SurfaceInfo& surface_info); |
| |
| // blink::mojom::OffscreenCanvasSurface implementation. |
| void Require(const cc::SurfaceId& surface_id, |
| const cc::SurfaceSequence& sequence) override; |
| void Satisfy(const cc::SurfaceSequence& sequence) override; |
| |
| const cc::FrameSinkId& frame_sink_id() const { return frame_sink_id_; } |
| |
| const cc::FrameSinkId& parent_frame_sink_id() const { |
| return parent_frame_sink_id_; |
| } |
| |
| const cc::LocalSurfaceId& current_local_surface_id() const { |
| return current_local_surface_id_; |
| } |
| |
| private: |
| blink::mojom::OffscreenCanvasSurfaceClientPtr client_; |
| mojo::StrongBindingPtr<blink::mojom::OffscreenCanvasSurface> binding_; |
| |
| // Private connection for the CompositorFrameSink. The CompositorFrameSink |
| // will not be destroyed until both private and offscreen canvas client |
| // connections are closed. |
| cc::mojom::MojoCompositorFrameSinkPrivatePtr compositor_frame_sink_private_; |
| |
| // Surface-related state |
| const cc::FrameSinkId frame_sink_id_; |
| cc::LocalSurfaceId current_local_surface_id_; |
| const cc::FrameSinkId parent_frame_sink_id_; |
| |
| bool has_created_compositor_frame_sink_ = false; |
| |
| DISALLOW_COPY_AND_ASSIGN(OffscreenCanvasSurfaceImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_SURFACE_IMPL_H_ |