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/*
* Copyright (C) 2011 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.
*/
#pragma once
#include "AcceleratedDrawingArea.h"
#include <WebCore/Region.h>
namespace WebCore {
class GraphicsContext;
}
namespace WebKit {
class ShareableBitmap;
class UpdateInfo;
class DrawingAreaImpl final : public AcceleratedDrawingArea {
public:
DrawingAreaImpl(WebPage&, const WebPageCreationParameters&);
virtual ~DrawingAreaImpl();
private:
// DrawingArea
void setNeedsDisplay() override;
void setNeedsDisplayInRect(const WebCore::IntRect&) override;
void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta) override;
void forceRepaint() override;
void mainFrameContentSizeChanged(const WebCore::IntSize&) override;
void updatePreferences(const WebPreferencesStore&) override;
void setRootCompositingLayer(WebCore::GraphicsLayer*) override;
// IPC message handlers.
void updateBackingStoreState(uint64_t backingStoreStateID, bool respondImmediately, float deviceScaleFactor, const WebCore::IntSize&, const WebCore::IntSize& scrollOffset) override;
void didUpdate() override;
// AcceleratedDrawingArea
void suspendPainting() override;
void sendDidUpdateBackingStoreState() override;
void didUpdateBackingStoreState() override;
void enterAcceleratedCompositingMode(WebCore::GraphicsLayer*) override;
void exitAcceleratedCompositingMode() override;
void scheduleDisplay();
void displayTimerFired();
void display();
void display(UpdateInfo&);
WebCore::Region m_dirtyRegion;
WebCore::IntRect m_scrollRect;
WebCore::IntSize m_scrollOffset;
// Whether we're waiting for a DidUpdate message. Used for throttling paints so that the
// web process won't paint more frequent than the UI process can handle.
bool m_isWaitingForDidUpdate { false };
bool m_alwaysUseCompositing {false };
bool m_forceRepaintAfterBackingStoreStateUpdate { false };
RunLoop::Timer<DrawingAreaImpl> m_displayTimer;
};
} // namespace WebKit
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