third_party/WebKit/Source/platform/graphics/CanvasSurfaceLayerBridge.h

// 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 "cc/surfaces/surface_id.h"
#include "platform/PlatformExport.h"
#include "public/platform/modules/offscreencanvas/offscreen_canvas_surface.mojom-blink.h"
#include <memory>

namespace cc {
class SurfaceLayer;
struct SurfaceSequence;
}  // namespace cc

namespace blink {

class WebLayer;

class PLATFORM_EXPORT CanvasSurfaceLayerBridge {
 public:
  explicit CanvasSurfaceLayerBridge(mojom::blink::OffscreenCanvasSurfacePtr);
  ~CanvasSurfaceLayerBridge();
  bool createSurfaceLayer(int canvasWidth, int canvasHeight);
  WebLayer* getWebLayer() const { return m_webLayer.get(); }
  const cc::SurfaceId& getSurfaceId() const { return m_surfaceId; }

  void satisfyCallback(const cc::SurfaceSequence&);
  void requireCallback(const cc::SurfaceId&, const cc::SurfaceSequence&);

 private:
  scoped_refptr<cc::SurfaceLayer> m_surfaceLayer;
  std::unique_ptr<WebLayer> m_webLayer;
  mojom::blink::OffscreenCanvasSurfacePtr m_service;
  cc::SurfaceId m_surfaceId;
};

}  // namespace blink

#endif  // CanvasSurfaceLayerBridge_h