#ifndef ScrollAnimatorMac_h
#define ScrollAnimatorMac_h
#include "platform/Timer.h"
#include "platform/geometry/FloatPoint.h"
#include "platform/geometry/FloatSize.h"
#include "platform/geometry/IntRect.h"
#include "platform/mac/ScrollElasticityController.h"
#include "platform/scroll/ScrollAnimator.h"
#include "wtf/RetainPtr.h"
OBJC_CLASS WebScrollAnimationHelperDelegate;
OBJC_CLASS WebScrollbarPainterControllerDelegate;
OBJC_CLASS WebScrollbarPainterDelegate;
typedef id ScrollbarPainterController;
#if !USE(RUBBER_BANDING)
class ScrollElasticityControllerClient { };
#endif
namespace WebCore {
class Scrollbar;
class PLATFORM_EXPORT ScrollAnimatorMac : public ScrollAnimator, private ScrollElasticityControllerClient {
public:
ScrollAnimatorMac(ScrollableArea*);
virtual ~ScrollAnimatorMac();
void immediateScrollToPointForScrollAnimation(const FloatPoint& newPosition);
bool haveScrolledSincePageLoad() const { return m_haveScrolledSincePageLoad; }
void updateScrollerStyle();
bool scrollbarPaintTimerIsActive() const;
void startScrollbarPaintTimer();
void stopScrollbarPaintTimer();
void sendContentAreaScrolledSoon(const FloatSize& scrollDelta);
void setVisibleScrollerThumbRect(const IntRect&);
static bool canUseCoordinatedScrollbar();
private:
RetainPtr<id> m_scrollAnimationHelper;
RetainPtr<WebScrollAnimationHelperDelegate> m_scrollAnimationHelperDelegate;
RetainPtr<ScrollbarPainterController> m_scrollbarPainterController;
RetainPtr<WebScrollbarPainterControllerDelegate> m_scrollbarPainterControllerDelegate;
RetainPtr<WebScrollbarPainterDelegate> m_horizontalScrollbarPainterDelegate;
RetainPtr<WebScrollbarPainterDelegate> m_verticalScrollbarPainterDelegate;
void initialScrollbarPaintTimerFired(Timer<ScrollAnimatorMac>*);
Timer<ScrollAnimatorMac> m_initialScrollbarPaintTimer;
void sendContentAreaScrolledTimerFired(Timer<ScrollAnimatorMac>*);
Timer<ScrollAnimatorMac> m_sendContentAreaScrolledTimer;
FloatSize m_contentAreaScrolledTimerScrollDelta;
virtual bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float delta) OVERRIDE;
virtual void scrollToOffsetWithoutAnimation(const FloatPoint&) OVERRIDE;
#if USE(RUBBER_BANDING)
virtual bool handleWheelEvent(const PlatformWheelEvent&) OVERRIDE;
#endif
virtual void handleWheelEventPhase(PlatformWheelEventPhase) OVERRIDE;
virtual void cancelAnimations() OVERRIDE;
virtual void setIsActive() OVERRIDE;
virtual void contentAreaWillPaint() const OVERRIDE;
virtual void mouseEnteredContentArea() const OVERRIDE;
virtual void mouseExitedContentArea() const OVERRIDE;
virtual void mouseMovedInContentArea() const OVERRIDE;
virtual void mouseEnteredScrollbar(Scrollbar*) const OVERRIDE;
virtual void mouseExitedScrollbar(Scrollbar*) const OVERRIDE;
virtual void willStartLiveResize() OVERRIDE;
virtual void contentsResized() const OVERRIDE;
virtual void willEndLiveResize() OVERRIDE;
virtual void contentAreaDidShow() const OVERRIDE;
virtual void contentAreaDidHide() const OVERRIDE;
void didBeginScrollGesture() const;
void didEndScrollGesture() const;
void mayBeginScrollGesture() const;
virtual void finishCurrentScrollAnimations() OVERRIDE;
virtual void didAddVerticalScrollbar(Scrollbar*) OVERRIDE;
virtual void willRemoveVerticalScrollbar(Scrollbar*) OVERRIDE;
virtual void didAddHorizontalScrollbar(Scrollbar*) OVERRIDE;
virtual void willRemoveHorizontalScrollbar(Scrollbar*) OVERRIDE;
virtual bool shouldScrollbarParticipateInHitTesting(Scrollbar*) OVERRIDE;
virtual void notifyContentAreaScrolled(const FloatSize& delta) OVERRIDE;
FloatPoint adjustScrollPositionIfNecessary(const FloatPoint&) const;
void immediateScrollTo(const FloatPoint&);
virtual bool isRubberBandInProgress() const OVERRIDE;
#if USE(RUBBER_BANDING)
virtual IntSize stretchAmount() OVERRIDE;
virtual bool allowsHorizontalStretching() OVERRIDE;
virtual bool allowsVerticalStretching() OVERRIDE;
virtual bool pinnedInDirection(const FloatSize&) OVERRIDE;
virtual bool canScrollHorizontally() OVERRIDE;
virtual bool canScrollVertically() OVERRIDE;
virtual bool shouldRubberBandInDirection(ScrollDirection) OVERRIDE;
virtual WebCore::IntPoint absoluteScrollPosition() OVERRIDE;
virtual void immediateScrollByWithoutContentEdgeConstraints(const FloatSize&) OVERRIDE;
virtual void immediateScrollBy(const FloatSize&) OVERRIDE;
virtual void startSnapRubberbandTimer() OVERRIDE;
virtual void stopSnapRubberbandTimer() OVERRIDE;
bool pinnedInDirection(float deltaX, float deltaY);
void snapRubberBandTimerFired(Timer<ScrollAnimatorMac>*);
ScrollElasticityController m_scrollElasticityController;
Timer<ScrollAnimatorMac> m_snapRubberBandTimer;
#endif
bool m_haveScrolledSincePageLoad;
bool m_needsScrollerStyleUpdate;
IntRect m_visibleScrollerThumbRect;
};
}
#endif