root/public/platform/WebCompositorSupport.h

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/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
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 * 1.  Redistributions of source code must retain the above copyright
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 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
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 *
 * 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
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#ifndef WebCompositorSupport_h
#define WebCompositorSupport_h

#include "WebAnimation.h"
#include "WebCommon.h"
#include "WebLayerTreeView.h"
#include "WebScrollbar.h"
#include "WebScrollbarThemePainter.h"

namespace blink {

class WebAnimationCurve;
class WebCompositorOutputSurface;
class WebContentLayer;
class WebContentLayerClient;
class WebExternalTextureLayer;
class WebExternalTextureLayerClient;
class WebFilterAnimationCurve;
class WebFilterOperations;
class WebFloatAnimationCurve;
class WebGraphicsContext3D;
class WebImageLayer;
class WebNinePatchLayer;
class WebLayer;
class WebScrollbarLayer;
class WebScrollbarThemeGeometry;
class WebSolidColorLayer;
class WebThread;
class WebTransformAnimationCurve;
class WebTransformOperations;

class WebCompositorSupport {
public:
    // Creates an output surface for the compositor backed by a 3d context.
    virtual WebCompositorOutputSurface* createOutputSurfaceFor3D(blink::WebGraphicsContext3D*) { return 0; }

    // Creates an output surface for the compositor backed by a software device.
    virtual WebCompositorOutputSurface* createOutputSurfaceForSoftware() { return 0; }

    // Layers -------------------------------------------------------

    virtual WebLayer* createLayer() { return 0; }

    virtual WebContentLayer* createContentLayer(WebContentLayerClient*) { return 0; }

    virtual WebExternalTextureLayer* createExternalTextureLayer(WebExternalTextureLayerClient*) { return 0; }

    virtual WebImageLayer* createImageLayer() { return 0; }

    virtual WebNinePatchLayer* createNinePatchLayer() { return 0; }

    // TODO(dshwang): This isn't used anymore.
    virtual WebSolidColorLayer* createSolidColorLayer() { return 0; }

    // The ownership of the WebScrollbarThemeGeometry pointer is passed to Chromium.
    virtual WebScrollbarLayer* createScrollbarLayer(WebScrollbar*, WebScrollbarThemePainter, WebScrollbarThemeGeometry*) { return 0; }

    virtual WebScrollbarLayer* createSolidColorScrollbarLayer(WebScrollbar::Orientation, int thumbThickness, bool isLeftSideVerticalScrollbar) { return 0; }

    // Animation ----------------------------------------------------

    virtual WebAnimation* createAnimation(const WebAnimationCurve&, WebAnimation::TargetProperty, int animationId = 0) { return 0; }

    virtual WebFilterAnimationCurve* createFilterAnimationCurve() { return 0; }

    virtual WebFloatAnimationCurve* createFloatAnimationCurve() { return 0; }

    virtual WebTransformAnimationCurve* createTransformAnimationCurve() { return 0; }

    virtual WebTransformOperations* createTransformOperations() { return 0; }

    virtual WebFilterOperations* createFilterOperations() { return 0; }

protected:
    virtual ~WebCompositorSupport() { }
};

}

#endif // WebCompositorSupport_h

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