#pragma once
#include "CallbackID.h"
#include "DrawingAreaInfo.h"
#include "LayerTreeContext.h"
#include "MessageReceiver.h"
#include "WebPage.h"
#include <WebCore/ActivityState.h>
#include <WebCore/FloatRect.h>
#include <WebCore/IntRect.h>
#include <WebCore/LayoutMilestone.h>
#include <WebCore/PlatformScreen.h>
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
#include <wtf/TypeCasts.h>
namespace WTF {
class MachSendRight;
}
namespace IPC {
class Connection;
class Decoder;
}
namespace WebCore {
class DisplayRefreshMonitor;
class Frame;
class FrameView;
class GraphicsLayer;
class GraphicsLayerFactory;
struct ViewportAttributes;
}
namespace WebKit {
struct ColorSpaceData;
class LayerTreeHost;
struct WebPageCreationParameters;
struct WebPreferencesStore;
class DrawingArea : public IPC::MessageReceiver {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(DrawingArea);
public:
static std::unique_ptr<DrawingArea> create(WebPage&, const WebPageCreationParameters&);
virtual ~DrawingArea();
DrawingAreaType type() const { return m_type; }
DrawingAreaIdentifier identifier() const { return m_identifier; }
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 sendEnterAcceleratedCompositingModeIfNeeded() { }
virtual void forceRepaint() { }
virtual bool forceRepaintAsync(CallbackID) { return false; }
virtual void setLayerTreeStateIsFrozen(bool) { }
virtual bool layerTreeStateIsFrozen() const { return false; }
virtual void updatePreferences(const WebPreferencesStore&) { }
virtual void enablePainting() { }
virtual void mainFrameContentSizeChanged(const WebCore::IntSize&) { }
#if PLATFORM(COCOA)
virtual void setViewExposedRect(Optional<WebCore::FloatRect>) = 0;
virtual Optional<WebCore::FloatRect> viewExposedRect() const = 0;
virtual void acceleratedAnimationDidStart(uint64_t , const String& , MonotonicTime ) { }
virtual void acceleratedAnimationDidEnd(uint64_t , const String& ) { }
virtual void addFence(const WTF::MachSendRight&) { }
virtual WebCore::FloatRect exposedContentRect() const = 0;
virtual void setExposedContentRect(const WebCore::FloatRect&) = 0;
#endif
virtual void mainFrameScrollabilityChanged(bool) { }
virtual bool supportsAsyncScrolling() const { return false; }
virtual bool usesDelegatedScrolling() const { return false; }
virtual bool usesDelegatedPageScaling() const { return false; }
virtual bool shouldUseTiledBackingForFrameView(const WebCore::FrameView&) const { return false; }
virtual WebCore::GraphicsLayerFactory* graphicsLayerFactory() { return nullptr; }
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) = 0;
virtual void scheduleRenderingUpdate() = 0;
virtual void scheduleImmediateRenderingUpdate() = 0;
virtual RefPtr<WebCore::DisplayRefreshMonitor> createDisplayRefreshMonitor(WebCore::PlatformDisplayID);
virtual void dispatchAfterEnsuringUpdatedScrollPosition(WTF::Function<void ()>&&);
virtual void activityStateDidChange(OptionSet<WebCore::ActivityState::Flag>, ActivityStateChangeID, const Vector<CallbackID>&) { }
virtual void setLayerHostingMode(LayerHostingMode) { }
virtual bool markLayersVolatileImmediatelyIfPossible() { return true; }
virtual void attachViewOverlayGraphicsLayer(WebCore::GraphicsLayer*) { }
virtual void setShouldScaleViewToFitDocument(bool) { }
virtual bool addMilestonesToDispatch(OptionSet<WebCore::LayoutMilestone>) { return false; }
#if PLATFORM(COCOA)
virtual void updateGeometry(const WebCore::IntSize& viewSize, bool flushSynchronously, const WTF::MachSendRight& fencePort) { }
#endif
#if USE(COORDINATED_GRAPHICS)
virtual void layerHostDidFlushLayers() { }
#endif
#if USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
virtual void didChangeViewportAttributes(WebCore::ViewportAttributes&&) = 0;
virtual void deviceOrPageScaleFactorChanged() = 0;
#endif
virtual void adoptLayersFromDrawingArea(DrawingArea&) { }
virtual void adoptDisplayRefreshMonitorsFromDrawingArea(DrawingArea&) { }
void removeMessageReceiverIfNeeded();
protected:
DrawingArea(DrawingAreaType, DrawingAreaIdentifier, WebPage&);
template<typename U> bool send(const U& message)
{
return m_webPage.send(message, m_identifier.toUInt64(), { });
}
DrawingAreaType m_type;
DrawingAreaIdentifier m_identifier;
WebPage& m_webPage;
private:
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
#if USE(COORDINATED_GRAPHICS) || USE(TEXTURE_MAPPER)
virtual void updateBackingStoreState(uint64_t , bool , float , const WebCore::IntSize& ,
const WebCore::IntSize& ) { }
#endif
virtual void didUpdate() { }
#if PLATFORM(COCOA)
virtual void setDeviceScaleFactor(float) { }
virtual void setColorSpace(const ColorSpaceData&) { }
virtual void adjustTransientZoom(double scale, WebCore::FloatPoint origin) { }
virtual void commitTransientZoom(double scale, WebCore::FloatPoint origin) { }
virtual void addTransactionCallbackID(WebKit::CallbackID) { ASSERT_NOT_REACHED(); }
#endif
bool m_hasRemovedMessageReceiver { false };
};
}
#define SPECIALIZE_TYPE_TRAITS_DRAWING_AREA(ToValueTypeName, AreaType) \
SPECIALIZE_TYPE_TRAITS_BEGIN(WebKit::ToValueTypeName) \
static bool isType(const WebKit::DrawingArea& area) { return area.type() == WebKit::AreaType; } \
SPECIALIZE_TYPE_TRAITS_END()