| /* |
| * Copyright (C) 2010, 2011 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #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 multiplier); |
| virtual void scrollToOffsetWithoutAnimation(const FloatPoint&); |
| |
| #if USE(RUBBER_BANDING) |
| virtual bool handleWheelEvent(const PlatformWheelEvent&) OVERRIDE; |
| #endif |
| |
| virtual void handleWheelEventPhase(PlatformWheelEventPhase) OVERRIDE; |
| |
| virtual void cancelAnimations(); |
| virtual void setIsActive(); |
| |
| virtual void notifyPositionChanged(const FloatSize& delta); |
| virtual void contentAreaWillPaint() const; |
| virtual void mouseEnteredContentArea() const; |
| virtual void mouseExitedContentArea() const; |
| virtual void mouseMovedInContentArea() const; |
| virtual void mouseEnteredScrollbar(Scrollbar*) const; |
| virtual void mouseExitedScrollbar(Scrollbar*) 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; |
| void mayBeginScrollGesture() const; |
| |
| virtual void finishCurrentScrollAnimations(); |
| |
| virtual void didAddVerticalScrollbar(Scrollbar*); |
| virtual void willRemoveVerticalScrollbar(Scrollbar*); |
| virtual void didAddHorizontalScrollbar(Scrollbar*); |
| virtual void willRemoveHorizontalScrollbar(Scrollbar*); |
| |
| virtual bool shouldScrollbarParticipateInHitTesting(Scrollbar*); |
| |
| 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) |
| /// ScrollElasticityControllerClient member functions. |
| 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; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ScrollAnimatorMac_h |