#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 ArgumentDecoder;
class Connection;
class MessageID;
}
namespace WebCore {
class GraphicsLayer;
}
namespace WebKit {
class LayerTreeHost;
class WebPage;
struct WebPageCreationParameters;
#if PLATFORM(WIN)
struct WindowGeometry;
#endif
class DrawingArea {
WTF_MAKE_NONCOPYABLE(DrawingArea);
public:
static PassOwnPtr<DrawingArea> create(WebPage*, const WebPageCreationParameters&);
virtual ~DrawingArea();
void didReceiveDrawingAreaMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
virtual void setNeedsDisplay(const WebCore::IntRect&) = 0;
virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset) = 0;
virtual void pageBackgroundTransparencyChanged() { }
virtual void forceRepaint() { }
virtual bool forceRepaintAsync(uint64_t callbackID) { return false; }
virtual void setLayerTreeStateIsFrozen(bool) { }
virtual bool layerTreeStateIsFrozen() const { return false; }
virtual LayerTreeHost* layerTreeHost() const { return 0; }
virtual void didInstallPageOverlay() { }
virtual void didUninstallPageOverlay() { }
virtual void setPageOverlayNeedsDisplay(const WebCore::IntRect&) { }
virtual void setPageOverlayOpacity(float) { }
virtual bool pageOverlayShouldApplyFadeWhenPainting() const { return true; }
virtual void pageCustomRepresentationChanged() { }
virtual void setPaintingEnabled(bool) { }
virtual void updatePreferences() { }
#if USE(ACCELERATED_COMPOSITING)
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) = 0;
virtual void scheduleCompositingLayerSync() = 0;
#endif
#if USE(UI_SIDE_COMPOSITING)
virtual void didReceiveLayerTreeHostMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*) = 0;
#endif
#if PLATFORM(WIN)
virtual void scheduleChildWindowGeometryUpdate(const WindowGeometry&) = 0;
#endif
virtual void dispatchAfterEnsuringUpdatedScrollPosition(const Function<void ()>&);
protected:
DrawingArea(DrawingAreaType, WebPage*);
DrawingAreaType m_type;
WebPage* m_webPage;
private:
virtual void updateBackingStoreState(uint64_t backingStoreStateID, bool respondImmediately, float deviceScaleFactor, const WebCore::IntSize& size, const WebCore::IntSize& scrollOffset) { }
virtual void didUpdate() { }
virtual void suspendPainting() { }
virtual void resumePainting() { }
virtual void setLayerHostingMode(uint32_t) { }
#if PLATFORM(MAC)
virtual void updateGeometry(const WebCore::IntSize& viewSize) { }
virtual void setDeviceScaleFactor(float) { }
#endif
};
}
#endif // DrawingArea_h