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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 LinkHighlight_h
#define LinkHighlight_h
#include "core/platform/graphics/GraphicsLayer.h"
#include "core/platform/graphics/Path.h"
#include "platform/geometry/FloatPoint.h"
#include "platform/geometry/IntPoint.h"
#include "public/platform/WebAnimationDelegate.h"
#include "public/platform/WebContentLayer.h"
#include "public/platform/WebContentLayerClient.h"
#include "public/platform/WebLayer.h"
#include "wtf/OwnPtr.h"
namespace WebCore {
class RenderLayer;
class Node;
}
namespace WebKit {
struct WebFloatRect;
struct WebRect;
class WebViewImpl;
class LinkHighlight : public WebContentLayerClient, public WebAnimationDelegate, WebCore::LinkHighlightClient {
public:
static PassOwnPtr<LinkHighlight> create(WebCore::Node*, WebViewImpl*);
virtual ~LinkHighlight();
WebContentLayer* contentLayer();
WebLayer* clipLayer();
void startHighlightAnimationIfNeeded();
void updateGeometry();
// WebContentLayerClient implementation.
virtual void paintContents(WebCanvas*, const WebRect& clipRect, bool canPaintLCDText, WebFloatRect& opaque) OVERRIDE;
// WebAnimationDelegate implementation.
virtual void notifyAnimationStarted(double time) OVERRIDE;
virtual void notifyAnimationFinished(double time) OVERRIDE;
// LinkHighlightClient inplementation.
virtual void invalidate() OVERRIDE;
virtual WebLayer* layer() OVERRIDE;
virtual void clearCurrentGraphicsLayer() OVERRIDE;
WebCore::GraphicsLayer* currentGraphicsLayerForTesting() const { return m_currentGraphicsLayer; }
private:
LinkHighlight(WebCore::Node*, WebViewImpl*);
void releaseResources();
WebCore::RenderLayer* computeEnclosingCompositingLayer();
void clearGraphicsLayerLinkHighlightPointer();
// This function computes the highlight path, and returns true if it has changed
// size since the last call to this function.
bool computeHighlightLayerPathAndPosition(WebCore::RenderLayer*);
OwnPtr<WebContentLayer> m_contentLayer;
OwnPtr<WebLayer> m_clipLayer;
WebCore::Path m_path;
RefPtr<WebCore::Node> m_node;
OwnPtr<WebAnimation> m_animation;
WebViewImpl* m_owningWebViewImpl;
WebCore::GraphicsLayer* m_currentGraphicsLayer;
bool m_geometryNeedsUpdate;
bool m_isAnimating;
double m_startTime;
};
} // namespace WebKit
#endif
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