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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 |
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57 class Node; | 57 class Node; |
58 class Page; | 58 class Page; |
59 class LayoutAnalyzer; | 59 class LayoutAnalyzer; |
60 class LayoutBox; | 60 class LayoutBox; |
61 class LayoutEmbeddedObject; | 61 class LayoutEmbeddedObject; |
62 class LayoutObject; | 62 class LayoutObject; |
63 class LayoutScrollbarPart; | 63 class LayoutScrollbarPart; |
64 class LayoutView; | 64 class LayoutView; |
65 class ScrollingCoordinator; | 65 class ScrollingCoordinator; |
66 class TracedValue; | 66 class TracedValue; |
67 struct CompositedSelectionBound; | 67 struct CompositedSelection; |
68 | 68 |
69 typedef unsigned long long DOMTimeStamp; | 69 typedef unsigned long long DOMTimeStamp; |
70 | 70 |
71 class CORE_EXPORT FrameView final : public Widget, public ScrollableArea { | 71 class CORE_EXPORT FrameView final : public Widget, public ScrollableArea { |
72 public: | 72 public: |
73 friend class LayoutView; | 73 friend class LayoutView; |
74 friend class Internals; | 74 friend class Internals; |
75 | 75 |
76 static PassRefPtrWillBeRawPtr<FrameView> create(LocalFrame*); | 76 static PassRefPtrWillBeRawPtr<FrameView> create(LocalFrame*); |
77 static PassRefPtrWillBeRawPtr<FrameView> create(LocalFrame*, const IntSize&
initialSize); | 77 static PassRefPtrWillBeRawPtr<FrameView> create(LocalFrame*, const IntSize&
initialSize); |
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673 void scheduleUpdateWidgetsIfNecessary(); | 673 void scheduleUpdateWidgetsIfNecessary(); |
674 void updateWidgetsTimerFired(Timer<FrameView>*); | 674 void updateWidgetsTimerFired(Timer<FrameView>*); |
675 bool updateWidgets(); | 675 bool updateWidgets(); |
676 | 676 |
677 void scrollToAnchor(); | 677 void scrollToAnchor(); |
678 void scrollPositionChanged(); | 678 void scrollPositionChanged(); |
679 void didScrollTimerFired(Timer<FrameView>*); | 679 void didScrollTimerFired(Timer<FrameView>*); |
680 | 680 |
681 void updateLayersAndCompositingAfterScrollIfNeeded(); | 681 void updateLayersAndCompositingAfterScrollIfNeeded(); |
682 | 682 |
683 static bool computeCompositedSelectionBounds(LocalFrame&, CompositedSelectio
nBound& start, CompositedSelectionBound& end); | 683 static bool computeCompositedSelection(LocalFrame&, CompositedSelection&); |
684 void updateCompositedSelectionBoundsIfNeeded(); | 684 void updateCompositedSelectionIfNeeded(); |
685 | 685 |
686 // Returns true if the FrameView's own scrollbars overlay its content when v
isible. | 686 // Returns true if the FrameView's own scrollbars overlay its content when v
isible. |
687 bool hasOverlayScrollbars() const; | 687 bool hasOverlayScrollbars() const; |
688 | 688 |
689 // Returns true if the frame should use custom scrollbars. If true, one of | 689 // Returns true if the frame should use custom scrollbars. If true, one of |
690 // either |customScrollbarElement| or |customScrollbarFrame| will be set to | 690 // either |customScrollbarElement| or |customScrollbarFrame| will be set to |
691 // the element or frame which owns the scrollbar with the other set to null. | 691 // the element or frame which owns the scrollbar with the other set to null. |
692 bool shouldUseCustomScrollbars(Element*& customScrollbarElement, LocalFrame*
& customScrollbarFrame) const; | 692 bool shouldUseCustomScrollbars(Element*& customScrollbarElement, LocalFrame*
& customScrollbarFrame) const; |
693 | 693 |
694 // Returns true if a scrollbar needs to go from native -> custom or vice ver
sa. | 694 // Returns true if a scrollbar needs to go from native -> custom or vice ver
sa. |
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874 static const unsigned visualPixelThreshold = 32 * 32; | 874 static const unsigned visualPixelThreshold = 32 * 32; |
875 if (m_visuallyNonEmptyPixelCount > visualPixelThreshold) | 875 if (m_visuallyNonEmptyPixelCount > visualPixelThreshold) |
876 setIsVisuallyNonEmpty(); | 876 setIsVisuallyNonEmpty(); |
877 } | 877 } |
878 | 878 |
879 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFra
meView()); | 879 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFra
meView()); |
880 | 880 |
881 } // namespace blink | 881 } // namespace blink |
882 | 882 |
883 #endif // FrameView_h | 883 #endif // FrameView_h |
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