#ifndef LayerTreeHost_h
#define LayerTreeHost_h
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class IntRect;
class IntSize;
class GraphicsLayer;
}
namespace WebKit {
class LayerTreeContext;
class UpdateInfo;
class WebPage;
#if PLATFORM(WIN)
struct WindowGeometry;
#endif
class LayerTreeHost : public RefCounted<LayerTreeHost> {
public:
static PassRefPtr<LayerTreeHost> create(WebPage*);
virtual ~LayerTreeHost();
static bool supportsAcceleratedCompositing();
virtual const LayerTreeContext& layerTreeContext() = 0;
virtual void scheduleLayerFlush() = 0;
virtual void setLayerFlushSchedulingEnabled(bool) = 0;
virtual void setShouldNotifyAfterNextScheduledLayerFlush(bool) = 0;
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) = 0;
virtual void invalidate() = 0;
virtual void setNonCompositedContentsNeedDisplay(const WebCore::IntRect&) = 0;
virtual void scrollNonCompositedContents(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset) = 0;
virtual void forceRepaint() = 0;
virtual void sizeDidChange(const WebCore::IntSize& newSize) = 0;
virtual void deviceScaleFactorDidChange() = 0;
virtual void didInstallPageOverlay() = 0;
virtual void didUninstallPageOverlay() = 0;
virtual void setPageOverlayNeedsDisplay(const WebCore::IntRect&) = 0;
virtual void pauseRendering() { }
virtual void resumeRendering() { }
virtual bool participatesInDisplay() { return false; }
virtual bool needsDisplay() { ASSERT_NOT_REACHED(); return false; }
virtual double timeUntilNextDisplay() { ASSERT_NOT_REACHED(); return 0; }
virtual void display(UpdateInfo&) { ASSERT_NOT_REACHED(); }
#if PLATFORM(WIN)
virtual void scheduleChildWindowGeometryUpdate(const WindowGeometry&) = 0;
#endif
protected:
explicit LayerTreeHost(WebPage*);
WebPage* m_webPage;
};
#if !PLATFORM(WIN)
inline bool LayerTreeHost::supportsAcceleratedCompositing()
{
return true;
}
#endif
}
#endif // LayerTreeHost_h