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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 DrawingArea_h
#define DrawingArea_h
#include "DrawingAreaInfo.h"
#include <WebCore/FloatPoint.h>
#include <WebCore/IntRect.h>
#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>
namespace CoreIPC {
class ArgumentDecoder;
class Connection;
class MessageID;
}
namespace WebCore {
class GraphicsLayer;
}
namespace WebKit {
class WebPage;
struct WebPageCreationParameters;
#if PLATFORM(WIN)
struct WindowGeometry;
#endif
class DrawingArea {
WTF_MAKE_NONCOPYABLE(DrawingArea);
public:
static PassOwnPtr<DrawingArea> create(WebPage*, const WebPageCreationParameters&);
virtual ~DrawingArea();
void didReceiveDrawingAreaMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
virtual void setNeedsDisplay(const WebCore::IntRect&) = 0;
virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset) = 0;
// FIXME: These should be pure virtual.
virtual void pageBackgroundTransparencyChanged() { }
virtual void forceRepaint() { }
virtual void setLayerTreeStateIsFrozen(bool) { }
virtual bool layerTreeStateIsFrozen() const { return false; }
virtual void didInstallPageOverlay() { }
virtual void didUninstallPageOverlay() { }
virtual void setPageOverlayNeedsDisplay(const WebCore::IntRect&) { }
virtual void pageCustomRepresentationChanged() { }
virtual void setPaintingEnabled(bool) { }
#if USE(ACCELERATED_COMPOSITING)
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) = 0;
virtual void scheduleCompositingLayerSync() = 0;
#if USE(TEXTURE_MAPPER) && USE(TILED_BACKING_STORE)
virtual void didReceiveLayerTreeHostMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*) = 0;
#endif
#endif
#if PLATFORM(WIN)
virtual void scheduleChildWindowGeometryUpdate(const WindowGeometry&) = 0;
#endif
protected:
DrawingArea(DrawingAreaType, WebPage*);
DrawingAreaType m_type;
WebPage* m_webPage;
private:
// CoreIPC message handlers.
// FIXME: These should be pure virtual.
virtual void updateBackingStoreState(uint64_t backingStoreStateID, bool respondImmediately, float deviceScaleFactor, const WebCore::IntSize& size, const WebCore::IntSize& scrollOffset) { }
virtual void didUpdate() { }
virtual void suspendPainting() { }
virtual void resumePainting() { }
#if PLATFORM(MAC)
// Used by TiledCoreAnimationDrawingArea.
virtual void updateGeometry(const WebCore::IntSize& viewSize) { }
#endif
};
} // namespace WebKit
#endif // DrawingArea_h
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