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/*
* Copyright (C) 2010 Apple 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 DrawingAreaProxyUpdateChunk_h
#define DrawingAreaProxyUpdateChunk_h
#include "DrawingAreaProxy.h"
#include <WebCore/IntSize.h>
#if PLATFORM(MAC)
#include <wtf/RetainPtr.h>
#ifdef __OBJC__
@class WKView;
#else
class WKView;
#endif
#elif PLATFORM(QT)
#include <QImage>
class QGraphicsWKView;
#endif
namespace WebKit {
class UpdateChunk;
class WebPageProxy;
#if PLATFORM(MAC)
typedef WKView PlatformWebView;
#elif PLATFORM(WIN)
class WebView;
typedef WebView PlatformWebView;
#elif PLATFORM(QT)
typedef QGraphicsWKView PlatformWebView;
#endif
class ChunkedUpdateDrawingAreaProxy : public DrawingAreaProxy {
public:
static PassOwnPtr<ChunkedUpdateDrawingAreaProxy> create(PlatformWebView*, WebPageProxy*);
virtual ~ChunkedUpdateDrawingAreaProxy();
private:
ChunkedUpdateDrawingAreaProxy(PlatformWebView*, WebPageProxy*);
WebPageProxy* page();
// DrawingAreaProxy
virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
virtual bool paint(const WebCore::IntRect&, PlatformDrawingContext);
virtual void sizeDidChange();
virtual void setPageIsVisible(bool isVisible);
void ensureBackingStore();
void invalidateBackingStore();
bool platformPaint(const WebCore::IntRect&, PlatformDrawingContext);
void drawUpdateChunkIntoBackingStore(UpdateChunk*);
void didSetSize(UpdateChunk*);
void update(UpdateChunk*);
void sendSetSize();
#if USE(ACCELERATED_COMPOSITING)
virtual void attachCompositingContext(uint32_t) { }
virtual void detachCompositingContext() { }
#endif
bool m_isWaitingForDidSetFrameNotification;
bool m_isVisible;
bool m_forceRepaintWhenResumingPainting;
#if PLATFORM(MAC)
// BackingStore
RetainPtr<CGContextRef> m_bitmapContext;
#elif PLATFORM(WIN)
// BackingStore
OwnPtr<HDC> m_backingStoreDC;
OwnPtr<HBITMAP> m_backingStoreBitmap;
#elif PLATFORM(QT)
QImage m_backingStoreImage;
#endif
PlatformWebView* m_webView;
};
} // namespace WebKit
#endif // DrawingAreaProxyUpdateChunk_h
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