#ifndef DrawingArea_h
#define DrawingArea_h
#include "DrawingAreaInfo.h"
#include <WebCore/FloatPoint.h>
#include <WebCore/IntRect.h>
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>
namespace CoreIPC {
class Connection;
class MessageDecoder;
}
namespace WebCore {
class GraphicsLayer;
class GraphicsLayerFactory;
}
namespace WebKit {
struct ColorSpaceData;
class LayerTreeHost;
class PageOverlay;
class WebPage;
struct WebPageCreationParameters;
struct WebPreferencesStore;
class DrawingArea {
WTF_MAKE_NONCOPYABLE(DrawingArea);
public:
static PassOwnPtr<DrawingArea> create(WebPage*, const WebPageCreationParameters&);
virtual ~DrawingArea();
void didReceiveDrawingAreaMessage(CoreIPC::Connection*, CoreIPC::MessageDecoder&);
virtual void setNeedsDisplay() = 0;
virtual void setNeedsDisplayInRect(const WebCore::IntRect&) = 0;
virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta) = 0;
virtual void pageBackgroundTransparencyChanged() { }
virtual void forceRepaint() { }
virtual bool forceRepaintAsync(uint64_t ) { return false; }
virtual void setLayerTreeStateIsFrozen(bool) { }
virtual bool layerTreeStateIsFrozen() const { return false; }
virtual LayerTreeHost* layerTreeHost() const { return 0; }
virtual void didInstallPageOverlay(PageOverlay*) { }
virtual void didUninstallPageOverlay(PageOverlay*) { }
virtual void setPageOverlayNeedsDisplay(PageOverlay*, const WebCore::IntRect&) { }
virtual void setPageOverlayOpacity(PageOverlay*, float) { }
virtual bool pageOverlayShouldApplyFadeWhenPainting() const { return true; }
virtual void pageCustomRepresentationChanged() { }
virtual void setPaintingEnabled(bool) { }
virtual void updatePreferences(const WebPreferencesStore&) { }
virtual void mainFrameContentSizeChanged(const WebCore::IntSize&) { }
virtual void setExposedRect(const WebCore::FloatRect&) { }
virtual void setClipsToExposedRect(bool) { }
virtual void mainFrameScrollabilityChanged(bool) { }
virtual void didChangeScrollOffsetForAnyFrame() { }
#if USE(ACCELERATED_COMPOSITING)
virtual WebCore::GraphicsLayerFactory* graphicsLayerFactory() { return 0; }
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) = 0;
virtual void scheduleCompositingLayerFlush() = 0;
#endif
#if USE(COORDINATED_GRAPHICS)
virtual void didReceiveCoordinatedLayerTreeHostMessage(CoreIPC::Connection*, CoreIPC::MessageDecoder&) = 0;
#endif
virtual void dispatchAfterEnsuringUpdatedScrollPosition(const Function<void ()>&);
protected:
DrawingArea(DrawingAreaType, WebPage*);
DrawingAreaType m_type;
WebPage* m_webPage;
private:
virtual void updateBackingStoreState(uint64_t , bool , float , const WebCore::IntSize& ,
const WebCore::IntSize& ) { }
virtual void didUpdate() { }
virtual void suspendPainting() { }
virtual void resumePainting() { }
virtual void setLayerHostingMode(uint32_t) { }
#if PLATFORM(MAC)
virtual void updateGeometry(const WebCore::IntSize& viewSize, const WebCore::IntSize& layerPosition) { }
virtual void setDeviceScaleFactor(float) { }
virtual void setColorSpace(const ColorSpaceData&) { }
#endif
};
}
#endif // DrawingArea_h