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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 INC. 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 INC. 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 ScrollbarLayerChromium_h
#define ScrollbarLayerChromium_h
#if USE(ACCELERATED_COMPOSITING)
#include "LayerChromium.h"
#include "LayerTextureUpdater.h"
#include "ScrollTypes.h"
namespace WebCore {
class Scrollbar;
class ScrollbarThemeComposite;
class CCTextureUpdater;
class ScrollbarLayerChromium : public LayerChromium {
public:
virtual PassOwnPtr<CCLayerImpl> createCCLayerImpl();
static PassRefPtr<ScrollbarLayerChromium> create(Scrollbar*, int scrollLayerId);
// LayerChromium interface
virtual void setTexturePriorities(const CCPriorityCalculator&) OVERRIDE;
virtual void update(CCTextureUpdater&, const CCOcclusionTracker*, CCRenderingStats&) OVERRIDE;
virtual void setLayerTreeHost(CCLayerTreeHost*) OVERRIDE;
virtual void pushPropertiesTo(CCLayerImpl*) OVERRIDE;
int scrollLayerId() const { return m_scrollLayerId; }
void setScrollLayerId(int id) { m_scrollLayerId = id; }
virtual ScrollbarLayerChromium* toScrollbarLayerChromium() { return this; }
protected:
ScrollbarLayerChromium(Scrollbar*, int scrollLayerId);
private:
ScrollbarThemeComposite* theme() const;
void updatePart(LayerTextureUpdater*, LayerTextureUpdater::Texture*, const IntRect&, CCTextureUpdater&, CCRenderingStats&);
void createTextureUpdaterIfNeeded();
RefPtr<Scrollbar> m_scrollbar;
int m_scrollLayerId;
GC3Denum m_textureFormat;
RefPtr<LayerTextureUpdater> m_backTrackUpdater;
RefPtr<LayerTextureUpdater> m_foreTrackUpdater;
RefPtr<LayerTextureUpdater> m_thumbUpdater;
// All the parts of the scrollbar except the thumb
OwnPtr<LayerTextureUpdater::Texture> m_backTrack;
OwnPtr<LayerTextureUpdater::Texture> m_foreTrack;
OwnPtr<LayerTextureUpdater::Texture> m_thumb;
ScrollbarOverlayStyle m_scrollbarOverlayStyle;
bool m_isScrollableAreaActive;
bool m_isScrollViewScrollbar;
ScrollbarOrientation m_orientation;
ScrollbarControlSize m_controlSize;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif
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