DrawingAreaProxy.h [plain text]
#ifndef DrawingAreaProxy_h
#define DrawingAreaProxy_h
#include "DrawingAreaInfo.h"
#include "GenericCallback.h"
#include "MessageReceiver.h"
#include <WebCore/FloatRect.h>
#include <WebCore/IntRect.h>
#include <WebCore/IntSize.h>
#include <chrono>
#include <stdint.h>
#include <wtf/Noncopyable.h>
#include <wtf/RunLoop.h>
#include <wtf/TypeCasts.h>
namespace WebKit {
class LayerTreeContext;
class CoordinatedLayerTreeHostProxy;
class UpdateInfo;
class WebPageProxy;
class DrawingAreaProxy : public IPC::MessageReceiver {
WTF_MAKE_NONCOPYABLE(DrawingAreaProxy);
public:
virtual ~DrawingAreaProxy();
DrawingAreaType type() const { return m_type; }
virtual void deviceScaleFactorDidChange() = 0;
virtual void setBackingStoreIsDiscardable(bool) { }
virtual void waitForBackingStoreUpdateOnNextPaint() { }
const WebCore::IntSize& size() const { return m_size; }
void setSize(const WebCore::IntSize&, const WebCore::IntSize&, const WebCore::IntSize& scrollOffset);
static constexpr std::chrono::milliseconds didUpdateBackingStoreStateTimeout() { return std::chrono::milliseconds(500); }
virtual void waitForPossibleGeometryUpdate(std::chrono::milliseconds = didUpdateBackingStoreStateTimeout()) { }
virtual void colorSpaceDidChange() { }
virtual void minimumLayoutSizeDidChange() { }
virtual void adjustTransientZoom(double, WebCore::FloatPoint) { }
virtual void commitTransientZoom(double, WebCore::FloatPoint) { }
#if PLATFORM(MAC)
virtual void setExposedRect(const WebCore::FloatRect&);
WebCore::FloatRect exposedRect() const { return m_exposedRect; }
#endif
#if PLATFORM(COCOA)
void exposedRectChangedTimerFired();
#endif
virtual void updateDebugIndicator() { }
virtual void waitForDidUpdateViewState() { }
virtual void dispatchAfterEnsuringDrawing(std::function<void (CallbackBase::Error)>) { ASSERT_NOT_REACHED(); }
virtual void hideContentUntilPendingUpdate() { ASSERT_NOT_REACHED(); }
virtual void hideContentUntilAnyUpdate() { ASSERT_NOT_REACHED(); }
virtual bool hasVisibleContent() const { return true; }
virtual void willSendUpdateGeometry() { }
protected:
explicit DrawingAreaProxy(DrawingAreaType, WebPageProxy&);
DrawingAreaType m_type;
WebPageProxy& m_webPageProxy;
WebCore::IntSize m_size;
WebCore::IntSize m_layerPosition;
WebCore::IntSize m_scrollOffset;
virtual void didReceiveMessage(IPC::Connection&, IPC::MessageDecoder&) override;
private:
virtual void sizeDidChange() = 0;
virtual void update(uint64_t , const UpdateInfo&) { }
virtual void didUpdateBackingStoreState(uint64_t , const UpdateInfo&, const LayerTreeContext&) { }
virtual void enterAcceleratedCompositingMode(uint64_t , const LayerTreeContext&) { }
virtual void exitAcceleratedCompositingMode(uint64_t , const UpdateInfo&) { }
virtual void updateAcceleratedCompositingMode(uint64_t , const LayerTreeContext&) { }
#if PLATFORM(COCOA)
virtual void didUpdateGeometry() { }
virtual void intrinsicContentSizeDidChange(const WebCore::IntSize&) { }
#if PLATFORM(MAC)
RunLoop::Timer<DrawingAreaProxy> m_exposedRectChangedTimer;
WebCore::FloatRect m_exposedRect;
WebCore::FloatRect m_lastSentExposedRect;
#endif // PLATFORM(MAC)
#endif
};
}
#define SPECIALIZE_TYPE_TRAITS_DRAWING_AREA_PROXY(ToValueTypeName, ProxyType) \
SPECIALIZE_TYPE_TRAITS_BEGIN(WebKit::ToValueTypeName) \
static bool isType(const WebKit::DrawingAreaProxy& proxy) { return proxy.type() == WebKit::ProxyType; } \
SPECIALIZE_TYPE_TRAITS_END()
#endif // DrawingAreaProxy_h