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// Copyright 2012 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 ScrollbarLayerChromium_h
#define ScrollbarLayerChromium_h
#include "caching_bitmap_canvas_layer_texture_updater.h"
#include "cc/layer.h"
#include <public/WebScrollbar.h>
#include <public/WebScrollbarThemeGeometry.h>
#include <public/WebScrollbarThemePainter.h>
namespace cc {
class Scrollbar;
class ScrollbarThemeComposite;
class CCTextureUpdateQueue;
class ScrollbarLayerChromium : public LayerChromium {
public:
virtual scoped_ptr<CCLayerImpl> createCCLayerImpl() OVERRIDE;
static scoped_refptr<ScrollbarLayerChromium> create(scoped_ptr<WebKit::WebScrollbar>, WebKit::WebScrollbarThemePainter, scoped_ptr<WebKit::WebScrollbarThemeGeometry>, int scrollLayerId);
// LayerChromium interface
virtual bool needsContentsScale() const OVERRIDE;
virtual IntSize contentBounds() const OVERRIDE;
virtual void setTexturePriorities(const CCPriorityCalculator&) OVERRIDE;
virtual void update(CCTextureUpdateQueue&, 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() OVERRIDE;
protected:
ScrollbarLayerChromium(scoped_ptr<WebKit::WebScrollbar>, WebKit::WebScrollbarThemePainter, scoped_ptr<WebKit::WebScrollbarThemeGeometry>, int scrollLayerId);
virtual ~ScrollbarLayerChromium();
private:
void updatePart(CachingBitmapCanvasLayerTextureUpdater*, LayerTextureUpdater::Texture*, const IntRect&, CCTextureUpdateQueue&, CCRenderingStats&);
void createTextureUpdaterIfNeeded();
scoped_ptr<WebKit::WebScrollbar> m_scrollbar;
WebKit::WebScrollbarThemePainter m_painter;
scoped_ptr<WebKit::WebScrollbarThemeGeometry> m_geometry;
int m_scrollLayerId;
GLenum m_textureFormat;
scoped_refptr<CachingBitmapCanvasLayerTextureUpdater> m_backTrackUpdater;
scoped_refptr<CachingBitmapCanvasLayerTextureUpdater> m_foreTrackUpdater;
scoped_refptr<CachingBitmapCanvasLayerTextureUpdater> m_thumbUpdater;
// All the parts of the scrollbar except the thumb
scoped_ptr<LayerTextureUpdater::Texture> m_backTrack;
scoped_ptr<LayerTextureUpdater::Texture> m_foreTrack;
scoped_ptr<LayerTextureUpdater::Texture> m_thumb;
};
}
#endif
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