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 WebScrollerImpPairDelegate;
OBJC_CLASS WebScrollerImpDelegate;
typedef id ScrollerImpPair;
namespace WebCore {
class Scrollbar;
class ScrollAnimatorMac : public ScrollAnimator {
public:
ScrollAnimatorMac(ScrollableArea&);
virtual ~ScrollAnimatorMac();
void immediateScrollToPositionForScrollAnimation(const FloatPoint& newPosition);
bool haveScrolledSincePageLoad() const { return m_haveScrolledSincePageLoad; }
void updateScrollerStyle();
bool scrollbarPaintTimerIsActive() const;
void startScrollbarPaintTimer();
void stopScrollbarPaintTimer();
void setVisibleScrollerThumbRect(const IntRect&);
bool scrollbarsCanBeActive() const final;
private:
RetainPtr<id> m_scrollAnimationHelper;
RetainPtr<WebScrollAnimationHelperDelegate> m_scrollAnimationHelperDelegate;
RetainPtr<ScrollerImpPair> m_scrollerImpPair;
RetainPtr<WebScrollerImpPairDelegate> m_scrollerImpPairDelegate;
RetainPtr<WebScrollerImpDelegate> m_horizontalScrollerImpDelegate;
RetainPtr<WebScrollerImpDelegate> m_verticalScrollerImpDelegate;
void initialScrollbarPaintTimerFired();
Timer m_initialScrollbarPaintTimer;
void sendContentAreaScrolledTimerFired();
Timer m_sendContentAreaScrolledTimer;
FloatSize m_contentAreaScrolledTimerScrollDelta;
bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float multiplier) override;
void scrollToOffsetWithoutAnimation(const FloatPoint&) override;
#if ENABLE(RUBBER_BANDING)
bool shouldForwardWheelEventsToParent(const PlatformWheelEvent&);
bool handleWheelEvent(const PlatformWheelEvent&) override;
#endif
void handleWheelEventPhase(PlatformWheelEventPhase) override;
void cancelAnimations() override;
void notifyPositionChanged(const FloatSize& delta) override;
void contentAreaWillPaint() const override;
void mouseEnteredContentArea() override;
void mouseExitedContentArea() override;
void mouseMovedInContentArea() override;
void mouseEnteredScrollbar(Scrollbar*) const override;
void mouseExitedScrollbar(Scrollbar*) const override;
void mouseIsDownInScrollbar(Scrollbar*, bool) const override;
void willStartLiveResize() override;
void contentsResized() const override;
void willEndLiveResize() override;
void contentAreaDidShow() override;
void contentAreaDidHide() override;
void didBeginScrollGesture() const;
void didEndScrollGesture() const;
void mayBeginScrollGesture() const;
void lockOverlayScrollbarStateToHidden(bool shouldLockState) final;
void didAddVerticalScrollbar(Scrollbar*) override;
void willRemoveVerticalScrollbar(Scrollbar*) override;
void didAddHorizontalScrollbar(Scrollbar*) override;
void willRemoveHorizontalScrollbar(Scrollbar*) override;
void invalidateScrollbarPartLayers(Scrollbar*) override;
void verticalScrollbarLayerDidChange() override;
void horizontalScrollbarLayerDidChange() override;
bool shouldScrollbarParticipateInHitTesting(Scrollbar*) override;
void notifyContentAreaScrolled(const FloatSize& delta) override;
void sendContentAreaScrolled(const FloatSize& scrollDelta);
void sendContentAreaScrolledSoon(const FloatSize& scrollDelta);
FloatPoint adjustScrollPositionIfNecessary(const FloatPoint&) const;
void immediateScrollToPosition(const FloatPoint&);
bool isRubberBandInProgress() const override;
bool isScrollSnapInProgress() const override;
#if ENABLE(RUBBER_BANDING)
IntSize stretchAmount() override;
bool allowsHorizontalStretching(const PlatformWheelEvent&) override;
bool allowsVerticalStretching(const PlatformWheelEvent&) override;
bool pinnedInDirection(const FloatSize&) override;
bool canScrollHorizontally() override;
bool canScrollVertically() override;
bool shouldRubberBandInDirection(ScrollDirection) override;
void immediateScrollByWithoutContentEdgeConstraints(const FloatSize&) override;
void immediateScrollBy(const FloatSize&) override;
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