Implement CSSOM Smooth Scroll API

Source/core/frame/FrameView.h

 /*
    Copyright (C) 1997 Martin Jones (mjones@kde.org)
              (C) 1998 Waldo Bastian (bastian@kde.org)
              (C) 1998, 1999 Torben Weis (weis@kde.org)
              (C) 1999 Lars Knoll (knoll@kde.org)
              (C) 1999 Antti Koivisto (koivisto@kde.org)
    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
@@ skipping 53 matching lines @@
     static PassRefPtr<FrameView> create(Frame*);
     static PassRefPtr<FrameView> create(Frame*, const IntSize& initialSize);
 
     virtual ~FrameView();
 
     virtual HostWindow* hostWindow() const OVERRIDE;
 
     virtual void invalidateRect(const IntRect&) OVERRIDE;
     virtual void setFrameRect(const IntRect&) OVERRIDE;
 
+    virtual bool registerForAnimation() OVERRIDE;
     virtual bool scheduleAnimation() OVERRIDE;
+    virtual void serviceScrollAnimations(double monotonicTime) OVERRIDE;
 
     Frame& frame() const { return *m_frame; }
 
     RenderView* renderView() const;
 
     virtual void setCanHaveScrollbars(bool) OVERRIDE;
 
     virtual PassRefPtr<Scrollbar> createScrollbar(ScrollbarOrientation) OVERRIDE;
 
     virtual void setContentsSize(const IntSize&) OVERRIDE;
@@ skipping 65 matching lines @@
 
     virtual IntRect windowResizerRect() const OVERRIDE;
 
     virtual float visibleContentScaleFactor() const OVERRIDE { return m_visibleContentScaleFactor; }
     void setVisibleContentScaleFactor(float);
 
     virtual float inputEventsScaleFactor() const OVERRIDE;
     virtual IntSize inputEventsOffsetForEmulation() const OVERRIDE;
     void setInputEventsTransformForEmulation(const IntSize&, float);
 
-    virtual void setScrollPosition(const IntPoint&) OVERRIDE;
+    virtual void setScrollPosition(const IntPoint&, ScrollBehavior = ScrollBehaviorInstant) OVERRIDE;
     virtual void repaintFixedElementsAfterScrolling() OVERRIDE;
     virtual void updateFixedElementsAfterScrolling() OVERRIDE;
     virtual bool shouldRubberBandInDirection(ScrollDirection) const OVERRIDE;
     virtual bool isRubberBandInProgress() const OVERRIDE;
     void setScrollPositionNonProgrammatically(const IntPoint&);
 
     // This is different than visibleContentRect() in that it ignores negative (or overly positive)
     // offsets from rubber-banding, and it takes zooming into account.
     LayoutRect viewportConstrainedVisibleContentRect() const;
 
@@ skipping 97 matching lines @@
     RenderBox* embeddedContentBox() const;
 
     void setTracksRepaints(bool);
     bool isTrackingRepaints() const { return m_isTrackingRepaints; }
     void resetTrackedRepaints();
     String trackedRepaintRectsAsText() const;
 
     typedef HashSet<ScrollableArea*> ScrollableAreaSet;
     // Returns whether the scrollable area has just been newly added.
     bool addScrollableArea(ScrollableArea*);
+    bool addAnimatingScrollableArea(ScrollableArea*);
     // Returns whether the scrollable area has just been removed.
     bool removeScrollableArea(ScrollableArea*);
+    bool removeAnimatingScrollableArea(ScrollableArea*);
     bool containsScrollableArea(const ScrollableArea*) const;
     const ScrollableAreaSet* scrollableAreas() const { return m_scrollableAreas.get(); }
 
     // With CSS style "resize:" enabled, a little resizer handle will appear at the bottom
     // right of the object. We keep track of these resizer areas for checking if touches
     // (implemented using Scroll gesture) are targeting the resizer.
     typedef HashSet<RenderBox*> ResizerAreaSet;
     void addResizerArea(RenderBox*);
     void removeResizerArea(RenderBox*);
     const ResizerAreaSet* resizerAreas() const { return m_resizerAreas.get(); }
@@ skipping 88 matching lines @@
     virtual void getTickmarks(Vector<IntRect>&) const OVERRIDE;
     virtual void scrollTo(const IntSize&) OVERRIDE;
     virtual ScrollableArea* enclosingScrollableArea() const OVERRIDE;
     virtual IntRect scrollableAreaBoundingBox() const OVERRIDE;
     virtual bool scrollAnimatorEnabled() const OVERRIDE;
     virtual bool usesCompositedScrolling() const OVERRIDE;
     virtual GraphicsLayer* layerForScrolling() const OVERRIDE;
     virtual GraphicsLayer* layerForHorizontalScrollbar() const OVERRIDE;
     virtual GraphicsLayer* layerForVerticalScrollbar() const OVERRIDE;
     virtual GraphicsLayer* layerForScrollCorner() const OVERRIDE;
+    virtual bool compositedScrollAnimationsEnabled() const OVERRIDE;
 
     void sendResizeEventIfNeeded();
 
     void updateScrollableAreaSet();
 
     virtual void notifyPageThatContentAreaWillPaint() const OVERRIDE;
 
     void updateWidgetsTimerFired(Timer<FrameView>*);
     bool updateWidgets();
 
@@ skipping 103 matching lines @@
     bool m_shouldAutoSize;
     bool m_inAutoSize;
     // True if autosize has been run since m_shouldAutoSize was set.
     bool m_didRunAutosize;
     // The lower bound on the size when autosizing.
     IntSize m_minAutoSize;
     // The upper bound on the size when autosizing.
     IntSize m_maxAutoSize;
 
     OwnPtr<ScrollableAreaSet> m_scrollableAreas;
+    OwnPtr<ScrollableAreaSet> m_animatingScrollableAreas;
     OwnPtr<ResizerAreaSet> m_resizerAreas;
     OwnPtr<ViewportConstrainedObjectSet> m_viewportConstrainedObjects;
 
     bool m_hasSoftwareFilters;
 
     float m_visibleContentScaleFactor;
     IntSize m_inputEventsOffsetForEmulation;
     float m_inputEventsScaleFactorForEmulation;
 
     PartialLayoutState m_partialLayout;
@@ skipping 48 matching lines @@
         m_view->setCanRepaintDuringPerformLayout(m_originalValue);
     }
 private:
     FrameView* m_view;
     bool m_originalValue;
 };
 
 } // namespace WebCore
 
 #endif // FrameView_h