RenderLayerBacking.h [plain text]
#ifndef RenderLayerBacking_h
#define RenderLayerBacking_h
#if USE(ACCELERATED_COMPOSITING)
#include "FloatPoint.h"
#include "FloatPoint3D.h"
#include "GraphicsLayer.h"
#include "GraphicsLayerClient.h"
#include "RenderLayer.h"
#include "TransformationMatrix.h"
namespace WebCore {
class KeyframeList;
class RenderLayerCompositor;
class RenderLayerBacking : public GraphicsLayerClient {
public:
RenderLayerBacking(RenderLayer*);
~RenderLayerBacking();
RenderLayer* owningLayer() const { return m_owningLayer; }
void updateAfterLayout();
bool updateGraphicsLayerConfiguration();
void updateGraphicsLayerGeometry();
void updateInternalHierarchy();
GraphicsLayer* graphicsLayer() const { return m_graphicsLayer; }
bool hasClippingLayer() const { return m_clippingLayer != 0; }
GraphicsLayer* clippingLayer() const { return m_clippingLayer; }
bool hasAncestorClippingLayer() const { return m_ancestorClippingLayer != 0; }
GraphicsLayer* ancestorClippingLayer() const { return m_ancestorClippingLayer; }
bool hasContentsLayer() const { return m_contentsLayer != 0; }
GraphicsLayer* contentsLayer() const { return m_contentsLayer; }
GraphicsLayer* parentForSublayers() const { return m_clippingLayer ? m_clippingLayer : m_graphicsLayer; }
GraphicsLayer* childForSuperlayers() const { return m_ancestorClippingLayer ? m_ancestorClippingLayer : m_graphicsLayer; }
bool paintingGoesToWindow() const;
void setContentsNeedDisplay();
void setContentsNeedDisplayInRect(const IntRect& r);
void rendererContentChanged();
bool startAnimation(double beginTime, const Animation* anim, const KeyframeList& keyframes);
bool startTransition(double beginTime, int property, const RenderStyle* fromStyle, const RenderStyle* toStyle);
void animationFinished(const String& name, int index, bool reset);
void transitionFinished(int property);
void suspendAnimations();
void resumeAnimations();
FloatPoint graphicsLayerToContentsCoordinates(const GraphicsLayer*, const FloatPoint&);
FloatPoint contentsToGraphicsLayerCoordinates(const GraphicsLayer*, const FloatPoint&);
virtual void notifyAnimationStarted(const GraphicsLayer*, double startTime);
virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& clip);
virtual IntRect contentsBox(const GraphicsLayer*);
private:
void createGraphicsLayer();
void destroyGraphicsLayer();
RenderBoxModelObject* renderer() const { return m_owningLayer->renderer(); }
RenderLayerCompositor* compositor() const { return m_owningLayer->compositor(); }
bool updateClippingLayers(bool needsAncestorClip, bool needsDescendantClip);
bool updateContentsLayer(bool needsContentsLayer);
IntSize contentOffsetInCompostingLayer();
FloatPoint3D computeTransformOrigin(const IntRect& borderBox) const;
FloatPoint computePerspectiveOrigin(const IntRect& borderBox) const;
void updateLayerOpacity();
void updateLayerTransform();
float compositingOpacity(float rendererOpacity) const;
bool isSimpleContainerCompositingLayer() const;
bool canUseDirectCompositing() const;
void updateImageContents();
bool rendererHasBackground() const;
const Color& rendererBackgroundColor() const;
bool hasNonCompositingContent() const;
void paintIntoLayer(RenderLayer* rootLayer, GraphicsContext*, const IntRect& paintDirtyRect,
bool haveTransparency, PaintRestriction paintRestriction, GraphicsLayerPaintingPhase, RenderObject* paintingRoot);
static int graphicsLayerToCSSProperty(AnimatedPropertyID);
static AnimatedPropertyID cssToGraphicsLayerProperty(int);
private:
RenderLayer* m_owningLayer;
GraphicsLayer* m_ancestorClippingLayer; GraphicsLayer* m_graphicsLayer;
GraphicsLayer* m_contentsLayer; GraphicsLayer* m_clippingLayer;
IntSize m_compositingContentOffset;
bool m_hasDirectlyCompositedContent: 1;
bool m_compositingContentOffsetDirty: 1;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif // RenderLayerBacking_h