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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 CanvasSurfaceLayerBridge_h
#define CanvasSurfaceLayerBridge_h
#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"
#include <memory>
namespace cc {
class Layer;
class SurfaceInfo;
} // namespace cc
namespace blink {
class WebLayer;
class PLATFORM_EXPORT CanvasSurfaceLayerBridgeObserver {
public:
CanvasSurfaceLayerBridgeObserver() {}
virtual ~CanvasSurfaceLayerBridgeObserver() {}
virtual void OnWebLayerReplaced() = 0;
};
class PLATFORM_EXPORT CanvasSurfaceLayerBridge
: NON_EXPORTED_BASE(public mojom::blink::OffscreenCanvasSurfaceClient) {
public:
explicit CanvasSurfaceLayerBridge(CanvasSurfaceLayerBridgeObserver*);
~CanvasSurfaceLayerBridge();
void createSolidColorLayer();
WebLayer* getWebLayer() const { return m_webLayer.get(); }
const cc::FrameSinkId& getFrameSinkId() const { return m_frameSinkId; }
// Implementation of 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> m_CCLayer;
std::unique_ptr<WebLayer> m_webLayer;
scoped_refptr<cc::SurfaceReferenceFactory> m_refFactory;
base::WeakPtrFactory<CanvasSurfaceLayerBridge> m_weakFactory;
CanvasSurfaceLayerBridgeObserver* m_observer;
mojom::blink::OffscreenCanvasSurfacePtr m_service;
mojo::Binding<mojom::blink::OffscreenCanvasSurfaceClient> m_binding;
cc::FrameSinkId m_frameSinkId;
cc::SurfaceId m_currentSurfaceId;
};
} // namespace blink
#endif // CanvasSurfaceLayerBridge_h
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