ScrollAnimatorMac.h [plain text]
#ifndef ScrollAnimatorMac_h
#define ScrollAnimatorMac_h
#if ENABLE(SMOOTH_SCROLLING)
#include "IntRect.h"
#include "FloatPoint.h"
#include "FloatSize.h"
#include "ScrollAnimator.h"
#include "Timer.h"
#include <wtf/RetainPtr.h>
OBJC_CLASS WebScrollAnimationHelperDelegate;
OBJC_CLASS WebScrollbarPainterControllerDelegate;
OBJC_CLASS WebScrollbarPainterDelegate;
typedef id ScrollbarPainterController;
namespace WebCore {
class Scrollbar;
class ScrollAnimatorMac : public ScrollAnimator {
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 setVisibleScrollerThumbRect(const IntRect&);
virtual bool scrollbarsCanBeActive() const override final;
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 m_initialScrollbarPaintTimer;
void sendContentAreaScrolledTimerFired();
Timer m_sendContentAreaScrolledTimer;
FloatSize m_contentAreaScrolledTimerScrollDelta;
virtual bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float multiplier) override;
virtual void scrollToOffsetWithoutAnimation(const FloatPoint&) override;
#if ENABLE(RUBBER_BANDING)
bool shouldForwardWheelEventsToParent(const PlatformWheelEvent&);
virtual bool handleWheelEvent(const PlatformWheelEvent&) override;
#endif
virtual void handleWheelEventPhase(PlatformWheelEventPhase) override;
virtual void cancelAnimations() override;
virtual void notifyPositionChanged(const FloatSize& delta) 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 lockOverlayScrollbarStateToHidden(bool shouldLockState) override final;
virtual void didAddVerticalScrollbar(Scrollbar*) override;
virtual void willRemoveVerticalScrollbar(Scrollbar*) override;
virtual void didAddHorizontalScrollbar(Scrollbar*) override;
virtual void willRemoveHorizontalScrollbar(Scrollbar*) override;
void invalidateScrollbarPartLayers(Scrollbar*) override;
virtual void verticalScrollbarLayerDidChange() override;
virtual void horizontalScrollbarLayerDidChange() override;
virtual bool shouldScrollbarParticipateInHitTesting(Scrollbar*) override;
virtual void notifyContentAreaScrolled(const FloatSize& delta) override;
void sendContentAreaScrolled(const FloatSize& scrollDelta);
void sendContentAreaScrolledSoon(const FloatSize& scrollDelta);
FloatPoint adjustScrollPositionIfNecessary(const FloatPoint&) const;
void immediateScrollTo(const FloatPoint&);
bool isRubberBandInProgress() const override;
bool isScrollSnapInProgress() const override;
#if ENABLE(RUBBER_BANDING)
virtual IntSize stretchAmount() override;
virtual bool allowsHorizontalStretching(const PlatformWheelEvent&) override;
virtual bool allowsVerticalStretching(const PlatformWheelEvent&) 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 adjustScrollPositionToBoundsIfNecessary() override;
bool isAlreadyPinnedInDirectionOfGesture(const PlatformWheelEvent&, ScrollEventAxis);
#endif
bool m_haveScrolledSincePageLoad;
bool m_needsScrollerStyleUpdate;
IntRect m_visibleScrollerThumbRect;
};
}
#endif // ENABLE(SMOOTH_SCROLLING)
#endif // ScrollAnimatorMac_h