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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.
*/
#ifndef TiledCoreAnimationDrawingArea_h
#define TiledCoreAnimationDrawingArea_h
#if ENABLE(THREADED_SCROLLING)
#include "DrawingArea.h"
#include "LayerTreeContext.h"
#include <WebCore/FloatRect.h>
#include <WebCore/GraphicsLayerClient.h>
#include <WebCore/LayerFlushScheduler.h>
#include <WebCore/LayerFlushSchedulerClient.h>
#include <WebCore/Timer.h>
#include <wtf/HashMap.h>
#include <wtf/RetainPtr.h>
OBJC_CLASS CALayer;
OBJC_CLASS WKContentLayer;
namespace WebCore {
class TiledBacking;
}
namespace WebKit {
class LayerHostingContext;
class TiledCoreAnimationDrawingArea : public DrawingArea, WebCore::GraphicsLayerClient, WebCore::LayerFlushSchedulerClient {
public:
static PassOwnPtr<TiledCoreAnimationDrawingArea> create(WebPage*, const WebPageCreationParameters&);
virtual ~TiledCoreAnimationDrawingArea();
private:
TiledCoreAnimationDrawingArea(WebPage*, const WebPageCreationParameters&);
// DrawingArea
virtual void setNeedsDisplay() OVERRIDE;
virtual void setNeedsDisplayInRect(const WebCore::IntRect&) OVERRIDE;
virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta) OVERRIDE;
virtual void forceRepaint() OVERRIDE;
virtual bool forceRepaintAsync(uint64_t callbackID) OVERRIDE;
virtual void setLayerTreeStateIsFrozen(bool) OVERRIDE;
virtual bool layerTreeStateIsFrozen() const OVERRIDE;
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) OVERRIDE;
virtual void scheduleCompositingLayerFlush() OVERRIDE;
virtual void didInstallPageOverlay(PageOverlay*) OVERRIDE;
virtual void didUninstallPageOverlay(PageOverlay*) OVERRIDE;
virtual void setPageOverlayNeedsDisplay(PageOverlay*, const WebCore::IntRect&) OVERRIDE;
virtual void updatePreferences(const WebPreferencesStore&) OVERRIDE;
virtual void mainFrameContentSizeChanged(const WebCore::IntSize&) OVERRIDE;
virtual void setExposedRect(const WebCore::FloatRect&) OVERRIDE;
virtual void setClipsToExposedRect(bool) OVERRIDE;
virtual void didChangeScrollOffsetForAnyFrame() OVERRIDE;
virtual void dispatchAfterEnsuringUpdatedScrollPosition(const Function<void ()>&) OVERRIDE;
// WebCore::GraphicsLayerClient
virtual void notifyAnimationStarted(const WebCore::GraphicsLayer*, double time) OVERRIDE;
virtual void notifyFlushRequired(const WebCore::GraphicsLayer*) OVERRIDE;
virtual void paintContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, WebCore::GraphicsLayerPaintingPhase, const WebCore::IntRect& clipRect) OVERRIDE;
virtual float deviceScaleFactor() const OVERRIDE;
virtual void didCommitChangesForLayer(const WebCore::GraphicsLayer*) const OVERRIDE;
// WebCore::LayerFlushSchedulerClient
virtual bool flushLayers() OVERRIDE;
// Message handlers.
virtual void suspendPainting() OVERRIDE;
virtual void resumePainting() OVERRIDE;
virtual void updateGeometry(const WebCore::IntSize& viewSize, const WebCore::IntSize& layerPosition) OVERRIDE;
virtual void setDeviceScaleFactor(float) OVERRIDE;
virtual void setLayerHostingMode(uint32_t) OVERRIDE;
virtual void setColorSpace(const ColorSpaceData&) OVERRIDE;
void updateLayerHostingContext();
void setRootCompositingLayer(CALayer *);
void createPageOverlayLayer(PageOverlay*);
void destroyPageOverlayLayer(PageOverlay*);
WebCore::TiledBacking* mainFrameTiledBacking() const;
void updateDebugInfoLayer(bool showLayer);
void updateIntrinsicContentSizeTimerFired(WebCore::Timer<TiledCoreAnimationDrawingArea>*);
void updateMainFrameClipsToExposedRect();
void updateScrolledExposedRect();
void invalidateAllPageOverlays();
bool m_layerTreeStateIsFrozen;
WebCore::LayerFlushScheduler m_layerFlushScheduler;
OwnPtr<LayerHostingContext> m_layerHostingContext;
RetainPtr<CALayer> m_rootLayer;
RetainPtr<CALayer> m_pendingRootCompositingLayer;
RetainPtr<CALayer> m_debugInfoLayer;
typedef HashMap<PageOverlay*, OwnPtr<WebCore::GraphicsLayer>> PageOverlayLayerMap;
PageOverlayLayerMap m_pageOverlayLayers;
mutable HashMap<const WebCore::GraphicsLayer*, RetainPtr<CALayer>> m_pageOverlayPlatformLayers;
bool m_isPaintingSuspended;
bool m_hasRootCompositingLayer;
WebCore::FloatRect m_exposedRect;
WebCore::FloatRect m_scrolledExposedRect;
bool m_clipsToExposedRect;
WebCore::IntSize m_lastSentIntrinsicContentSize;
WebCore::Timer<TiledCoreAnimationDrawingArea> m_updateIntrinsicContentSizeTimer;
bool m_inUpdateGeometry;
};
} // namespace WebKit
#endif // ENABLE(THREADED_SCROLLING)
#endif // TiledCoreAnimationDrawingArea_h
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