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/*
* 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/heap/Handle.h"
#include "platform/scroll/ScrollAnimatorBase.h"
#include "wtf/RetainPtr.h"
OBJC_CLASS WebScrollAnimationHelperDelegate;
OBJC_CLASS WebScrollbarPainterControllerDelegate;
OBJC_CLASS WebScrollbarPainterDelegate;
typedef id ScrollbarPainterController;
namespace blink {
class Scrollbar;
class PLATFORM_EXPORT ScrollAnimatorMac : public ScrollAnimatorBase {
WILL_BE_USING_PRE_FINALIZER(ScrollAnimatorMac, dispose);
public:
ScrollAnimatorMac(ScrollableArea*);
~ScrollAnimatorMac() override;
void dispose() override;
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();
DEFINE_INLINE_VIRTUAL_TRACE()
{
ScrollAnimatorBase::trace(visitor);
}
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;
ScrollResultOneDimensional userScroll(ScrollbarOrientation, ScrollGranularity, float step, float delta) override;
void scrollToOffsetWithoutAnimation(const FloatPoint&) override;
void handleWheelEventPhase(PlatformWheelEventPhase) override;
void cancelAnimation() override;
void setIsActive() override;
void contentAreaWillPaint() const override;
void mouseEnteredContentArea() const override;
void mouseExitedContentArea() const override;
void mouseMovedInContentArea() const override;
void mouseEnteredScrollbar(Scrollbar&) const override;
void mouseExitedScrollbar(Scrollbar&) const override;
void willStartLiveResize() override;
void contentsResized() const override;
void willEndLiveResize() override;
void contentAreaDidShow() const override;
void contentAreaDidHide() const override;
void didBeginScrollGesture() const;
void didEndScrollGesture() const;
void mayBeginScrollGesture() const;
void finishCurrentScrollAnimations() override;
void didAddVerticalScrollbar(Scrollbar&) override;
void willRemoveVerticalScrollbar(Scrollbar&) override;
void didAddHorizontalScrollbar(Scrollbar&) override;
void willRemoveHorizontalScrollbar(Scrollbar&) override;
bool shouldScrollbarParticipateInHitTesting(Scrollbar&) override;
void notifyContentAreaScrolled(const FloatSize& delta) override;
bool setScrollbarsVisibleForTesting(bool) override;
FloatPoint adjustScrollPositionIfNecessary(const FloatPoint&) const;
void immediateScrollTo(const FloatPoint&);
bool m_haveScrolledSincePageLoad;
bool m_needsScrollerStyleUpdate;
IntRect m_visibleScrollerThumbRect;
};
} // namespace blink
#endif // ScrollAnimatorMac_h
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