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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 DrawingAreaProxy_h
#define DrawingAreaProxy_h
#include "DrawingAreaInfo.h"
#include <WebCore/IntSize.h>
#if PLATFORM(QT)
class QPainter;
#endif
namespace WebKit {
class WebPageProxy;
struct UpdateInfo;
#if PLATFORM(MAC)
typedef CGContextRef PlatformDrawingContext;
#elif PLATFORM(WIN)
typedef HDC PlatformDrawingContext;
#elif PLATFORM(QT)
typedef QPainter* PlatformDrawingContext;
#endif
class DrawingAreaProxy {
WTF_MAKE_NONCOPYABLE(DrawingAreaProxy);
public:
static DrawingAreaInfo::Identifier nextIdentifier();
virtual ~DrawingAreaProxy();
#ifdef __APPLE__
void didReceiveDrawingAreaProxyMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
#endif
virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*) = 0;
virtual void didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, CoreIPC::ArgumentEncoder*) { ASSERT_NOT_REACHED(); }
// Returns true if painting was successful, false otherwise.
virtual bool paint(const WebCore::IntRect&, PlatformDrawingContext) = 0;
virtual void sizeDidChange() = 0;
virtual void setPageIsVisible(bool isVisible) = 0;
#if USE(ACCELERATED_COMPOSITING)
virtual void attachCompositingContext(uint32_t contextID) = 0;
virtual void detachCompositingContext() = 0;
#endif
const DrawingAreaInfo& info() const { return m_info; }
const WebCore::IntSize& size() const { return m_size; }
void setSize(const WebCore::IntSize&);
protected:
explicit DrawingAreaProxy(DrawingAreaInfo::Type, WebPageProxy*);
DrawingAreaInfo m_info;
WebPageProxy* m_webPageProxy;
WebCore::IntSize m_size;
private:
// CoreIPC message handlers.
// FIXME: These should be pure virtual.
virtual void update(const UpdateInfo&) { }
virtual void didSetSize() { }
};
} // namespace WebKit
#endif // DrawingAreaProxy_h
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