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>
#ifdef __OBJC__
@class ScrollAnimationHelperDelegate;
@class ScrollbarPainterDelegate;
@class ScrollbarPainterControllerDelegate;
@class ScrollbarPainterDelegate;
#else
class ScrollAnimationHelperDelegate;
class ScrollbarPainterDelegate;
class ScrollbarPainterControllerDelegate;
class ScrollbarPainterDelegate;
#endif
#if USE(WK_SCROLLBAR_PAINTER)
typedef struct __WKScrollbarPainterController *WKScrollbarPainterControllerRef;
#endif
namespace WebCore {
class Scrollbar;
class ScrollAnimatorMac : public ScrollAnimator {
public:
ScrollAnimatorMac(ScrollableArea*);
virtual ~ScrollAnimatorMac();
virtual bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float multiplier);
virtual void scrollToOffsetWithoutAnimation(const FloatPoint&);
#if ENABLE(RUBBER_BANDING)
virtual void handleWheelEvent(PlatformWheelEvent&);
#if ENABLE(GESTURE_EVENTS)
virtual void handleGestureEvent(const PlatformGestureEvent&);
#endif
#endif
virtual void cancelAnimations();
void immediateScrollToPoint(const FloatPoint& newPosition);
void immediateScrollByDeltaX(float deltaX);
void immediateScrollByDeltaY(float deltaY);
void immediateScrollToPointForScrollAnimation(const FloatPoint& newPosition);
void setIsDrawingIntoLayer(bool b) { m_drawingIntoLayer = b; }
bool isDrawingIntoLayer() const { return m_drawingIntoLayer; }
bool haveScrolledSincePageLoad() const { return m_haveScrolledSincePageLoad; }
virtual void setIsActive();
#if USE(WK_SCROLLBAR_PAINTER)
void updateScrollerStyle();
bool scrollbarPaintTimerIsActive() const;
void startScrollbarPaintTimer();
void stopScrollbarPaintTimer();
#endif
void setVisibleScrollerThumbRect(const IntRect&);
private:
RetainPtr<id> m_scrollAnimationHelper;
RetainPtr<ScrollAnimationHelperDelegate> m_scrollAnimationHelperDelegate;
#if USE(WK_SCROLLBAR_PAINTER)
RetainPtr<WKScrollbarPainterControllerRef> m_scrollbarPainterController;
RetainPtr<ScrollbarPainterControllerDelegate> m_scrollbarPainterControllerDelegate;
RetainPtr<id> m_scrollbarPainterDelegate;
void initialScrollbarPaintTimerFired(Timer<ScrollAnimatorMac>*);
Timer<ScrollAnimatorMac> m_initialScrollbarPaintTimer;
#endif
virtual void notityPositionChanged();
virtual void contentAreaWillPaint() const;
virtual void mouseEnteredContentArea() const;
virtual void mouseExitedContentArea() const;
virtual void mouseMovedInContentArea() const;
virtual void willStartLiveResize();
virtual void contentsResized() const;
virtual void willEndLiveResize();
virtual void contentAreaDidShow() const;
virtual void contentAreaDidHide() const;
void didBeginScrollGesture() const;
void didEndScrollGesture() const;
virtual void didAddVerticalScrollbar(Scrollbar*);
virtual void willRemoveVerticalScrollbar(Scrollbar*);
virtual void didAddHorizontalScrollbar(Scrollbar*);
virtual void willRemoveHorizontalScrollbar(Scrollbar*);
void setNeedsScrollerStyleUpdate(bool needsUpdate) { m_needsScrollerStyleUpdate = needsUpdate; }
bool needsScrollerStyleUpdate() const { return m_needsScrollerStyleUpdate; }
float adjustScrollXPositionIfNecessary(float) const;
float adjustScrollYPositionIfNecessary(float) const;
FloatPoint adjustScrollPositionIfNecessary(const FloatPoint&) const;
#if ENABLE(RUBBER_BANDING)
bool allowsVerticalStretching() const;
bool allowsHorizontalStretching() const;
bool pinnedInDirection(float deltaX, float deltaY);
void snapRubberBand();
void snapRubberBandTimerFired(Timer<ScrollAnimatorMac>*);
void smoothScrollWithEvent(PlatformWheelEvent&);
void beginScrollGesture();
void endScrollGesture();
bool m_inScrollGesture;
bool m_momentumScrollInProgress;
bool m_ignoreMomentumScrolls;
bool m_scrollerInitiallyPinnedOnLeft;
bool m_scrollerInitiallyPinnedOnRight;
int m_cumulativeHorizontalScroll;
bool m_didCumulativeHorizontalScrollEverSwitchToOppositeDirectionOfPin;
CFTimeInterval m_lastMomentumScrollTimestamp;
FloatSize m_overflowScrollDelta;
FloatSize m_stretchScrollForce;
FloatSize m_momentumVelocity;
CFTimeInterval m_startTime;
FloatSize m_startStretch;
FloatPoint m_origOrigin;
FloatSize m_origVelocity;
Timer<ScrollAnimatorMac> m_snapRubberBandTimer;
#endif
bool m_drawingIntoLayer;
bool m_haveScrolledSincePageLoad;
bool m_needsScrollerStyleUpdate;
IntRect m_visibleScrollerThumbRect;
};
}
#endif // ENABLE(SMOOTH_SCROLLING)
#endif // ScrollAnimatorMac_h