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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_CANVAS_2D_LAYER_BRIDGE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_CANVAS_2D_LAYER_BRIDGE_H_
#include "third_party/blink/renderer/platform/graphics/canvas_hibernation_handler.h"
#include "third_party/blink/renderer/platform/platform_export.h"
namespace blink {
class CanvasResourceHost;
// Canvas2DLayerBridge historically served as the means of creating resources
// for 2D canvas contexts. It has since had almost all functionality migrated
// out of it and is merely a wrapper of CanvasHibernationHandler. However,
// HTMLCanvasElement and CanvasRenderingContext2D still continue to base logic
// on the dynamic presence/absence of a bridge instance for legacy reasons.
// Until we migrate all of that legacy logic, we are leaving Canvas2DLayerBridge
// in place.
// DO NOT ADD ANY CODE OR FUNCTIONALITY HERE.
// TODO(crbug.com/40280152): Eliminate this class once it is actually used
// strictly as a wrapper for CanvasHibernationHandler's functionality.
class PLATFORM_EXPORT Canvas2DLayerBridge {
public:
explicit Canvas2DLayerBridge(CanvasResourceHost& resource_host);
Canvas2DLayerBridge(const Canvas2DLayerBridge&) = delete;
Canvas2DLayerBridge& operator=(const Canvas2DLayerBridge&) = delete;
virtual ~Canvas2DLayerBridge();
CanvasHibernationHandler& GetHibernationHandler() {
return hibernation_handler_;
}
private:
CanvasHibernationHandler hibernation_handler_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_CANVAS_2D_LAYER_BRIDGE_H_
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