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Side by Side Diff: Source/core/frame/FrameView.h

Issue 1308273010: Adapt and reland old position sticky implementation (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Fix style errors and remaining layout tests. Created 5 years, 3 months ago
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1 /* 1 /*
2 Copyright (C) 1997 Martin Jones (mjones@kde.org) 2 Copyright (C) 1997 Martin Jones (mjones@kde.org)
3 (C) 1998 Waldo Bastian (bastian@kde.org) 3 (C) 1998 Waldo Bastian (bastian@kde.org)
4 (C) 1998, 1999 Torben Weis (weis@kde.org) 4 (C) 1998, 1999 Torben Weis (weis@kde.org)
5 (C) 1999 Lars Knoll (knoll@kde.org) 5 (C) 1999 Lars Knoll (knoll@kde.org)
6 (C) 1999 Antti Koivisto (koivisto@kde.org) 6 (C) 1999 Antti Koivisto (koivisto@kde.org)
7 Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserv ed. 7 Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserv ed.
8 8
9 This library is free software; you can redistribute it and/or 9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Library General Public 10 modify it under the terms of the GNU Library General Public
(...skipping 649 matching lines...) Expand 10 before | Expand all | Expand 10 after
660 void scheduleUpdateWidgetsIfNecessary(); 660 void scheduleUpdateWidgetsIfNecessary();
661 void updateWidgetsTimerFired(Timer<FrameView>*); 661 void updateWidgetsTimerFired(Timer<FrameView>*);
662 bool updateWidgets(); 662 bool updateWidgets();
663 663
664 bool processUrlFragmentHelper(const String&, UrlFragmentBehavior); 664 bool processUrlFragmentHelper(const String&, UrlFragmentBehavior);
665 void maintainScrollPositionAtAnchor(Node*); 665 void maintainScrollPositionAtAnchor(Node*);
666 void scrollToAnchor(); 666 void scrollToAnchor();
667 void scrollPositionChanged(); 667 void scrollPositionChanged();
668 void didScrollTimerFired(Timer<FrameView>*); 668 void didScrollTimerFired(Timer<FrameView>*);
669 669
670 void updateLayersAndCompositingAfterScrollIfNeeded(); 670 void updateLayersAndCompositingAfterScrollIfNeeded(const DoubleSize& scrollD elta);
671 671
672 static bool computeCompositedSelection(LocalFrame&, CompositedSelection&); 672 static bool computeCompositedSelection(LocalFrame&, CompositedSelection&);
673 void updateCompositedSelectionIfNeeded(); 673 void updateCompositedSelectionIfNeeded();
674 674
675 // Returns true if the FrameView's own scrollbars overlay its content when v isible. 675 // Returns true if the FrameView's own scrollbars overlay its content when v isible.
676 bool hasOverlayScrollbars() const; 676 bool hasOverlayScrollbars() const;
677 677
678 // Returns true if the frame should use custom scrollbars. If true, one of 678 // Returns true if the frame should use custom scrollbars. If true, one of
679 // either |customScrollbarElement| or |customScrollbarFrame| will be set to 679 // either |customScrollbarElement| or |customScrollbarFrame| will be set to
680 // the element or frame which owns the scrollbar with the other set to null. 680 // the element or frame which owns the scrollbar with the other set to null.
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858 static const unsigned visualPixelThreshold = 32 * 32; 858 static const unsigned visualPixelThreshold = 32 * 32;
859 if (m_visuallyNonEmptyPixelCount > visualPixelThreshold) 859 if (m_visuallyNonEmptyPixelCount > visualPixelThreshold)
860 setIsVisuallyNonEmpty(); 860 setIsVisuallyNonEmpty();
861 } 861 }
862 862
863 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFra meView()); 863 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFra meView());
864 864
865 } // namespace blink 865 } // namespace blink
866 866
867 #endif // FrameView_h 867 #endif // FrameView_h
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