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/*
* Copyright (C) 2011, 2012 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 LayerTreeHost_h
#define LayerTreeHost_h
#if USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
#include "LayerTreeContext.h"
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
namespace IPC {
class Connection;
}
namespace WebCore {
class IntRect;
class IntSize;
class GraphicsLayer;
class GraphicsLayerFactory;
#if USE(COORDINATED_GRAPHICS_THREADED)
struct ViewportAttributes;
#endif
}
namespace WebKit {
class WebPage;
class LayerTreeHost : public RefCounted<LayerTreeHost> {
public:
static RefPtr<LayerTreeHost> create(WebPage&);
virtual ~LayerTreeHost();
const LayerTreeContext& layerTreeContext() const { return m_layerTreeContext; }
void setLayerFlushSchedulingEnabled(bool);
void setShouldNotifyAfterNextScheduledLayerFlush(bool notifyAfterScheduledLayerFlush) { m_notifyAfterScheduledLayerFlush = notifyAfterScheduledLayerFlush; }
virtual void scheduleLayerFlush() = 0;
virtual void cancelPendingLayerFlush() = 0;
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) = 0;
virtual void invalidate();
virtual void setNonCompositedContentsNeedDisplay() { };
virtual void setNonCompositedContentsNeedDisplayInRect(const WebCore::IntRect&) { };
virtual void scrollNonCompositedContents(const WebCore::IntRect&) { };
virtual void forceRepaint() = 0;
virtual bool forceRepaintAsync(uint64_t /*callbackID*/) { return false; }
virtual void sizeDidChange(const WebCore::IntSize& newSize) = 0;
virtual void pageBackgroundTransparencyChanged() = 0;
virtual void pauseRendering();
virtual void resumeRendering();
virtual WebCore::GraphicsLayerFactory* graphicsLayerFactory() { return nullptr; }
#if USE(COORDINATED_GRAPHICS_THREADED)
virtual void contentsSizeChanged(const WebCore::IntSize&) { };
virtual void didChangeViewportAttributes(WebCore::ViewportAttributes&&) { };
#endif
#if USE(COORDINATED_GRAPHICS)
virtual void scheduleAnimation() = 0;
virtual void setIsDiscardable(bool) { };
#endif
#if USE(TEXTURE_MAPPER_GL) && PLATFORM(GTK)
virtual void setNativeSurfaceHandleForCompositing(uint64_t) { };
#endif
#if USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
virtual void deviceOrPageScaleFactorChanged() = 0;
#endif
virtual void setViewOverlayRootLayer(WebCore::GraphicsLayer* viewOverlayRootLayer) { m_viewOverlayRootLayer = viewOverlayRootLayer; }
protected:
explicit LayerTreeHost(WebPage&);
WebPage& m_webPage;
LayerTreeContext m_layerTreeContext;
bool m_layerFlushSchedulingEnabled { true };
bool m_notifyAfterScheduledLayerFlush { false };
bool m_isSuspended { false };
bool m_isValid { true };
WebCore::GraphicsLayer* m_viewOverlayRootLayer { nullptr };
};
} // namespace WebKit
#endif // USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
#endif // LayerTreeHost_h
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