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// 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_EMBEDDED_FRAME_SINK_IMPL_H_
#define CONTENT_BROWSER_RENDERER_HOST_EMBEDDED_FRAME_SINK_IMPL_H_
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "components/viz/common/surfaces/frame_sink_id.h"
#include "components/viz/common/surfaces/surface_info.h"
#include "components/viz/host/host_frame_sink_client.h"
#include "content/common/content_export.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "third_party/blink/public/platform/modules/frame_sinks/embedded_frame_sink.mojom.h"
namespace viz {
class HostFrameSinkManager;
}
namespace content {
// The browser owned object for an embedded frame sink in a renderer process.
// Both the embedder and embedded frame sink are in the same renderer. Holds a
// client connection to the renderer that is notified when a new SurfaceId
// activates for the embedded frame sink.
class CONTENT_EXPORT EmbeddedFrameSinkImpl : public viz::HostFrameSinkClient {
public:
using DestroyCallback = base::OnceCallback<void()>;
EmbeddedFrameSinkImpl(viz::HostFrameSinkManager* host_frame_sink_manager,
const viz::FrameSinkId& parent_frame_sink_id,
const viz::FrameSinkId& frame_sink_id,
blink::mojom::EmbeddedFrameSinkClientPtr client,
DestroyCallback destroy_callback);
~EmbeddedFrameSinkImpl() override;
const viz::FrameSinkId& frame_sink_id() const { return frame_sink_id_; }
const viz::LocalSurfaceId& local_surface_id() const {
return local_surface_id_;
}
// Creates a CompositorFrameSink connection to FrameSinkManagerImpl. This
// should only ever be called once.
void CreateCompositorFrameSink(
viz::mojom::CompositorFrameSinkClientPtr client,
viz::mojom::CompositorFrameSinkRequest request);
// viz::HostFrameSinkClient implementation.
void OnFirstSurfaceActivation(const viz::SurfaceInfo& surface_info) override;
void OnFrameTokenChanged(uint32_t frame_token) override;
private:
viz::HostFrameSinkManager* const host_frame_sink_manager_;
blink::mojom::EmbeddedFrameSinkClientPtr client_;
// Surface-related state
const viz::FrameSinkId parent_frame_sink_id_;
const viz::FrameSinkId frame_sink_id_;
viz::LocalSurfaceId local_surface_id_;
bool has_created_compositor_frame_sink_ = false;
DISALLOW_COPY_AND_ASSIGN(EmbeddedFrameSinkImpl);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_EMBEDDED_FRAME_SINK_IMPL_H_
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