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1 /* | 1 /* |
2 * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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31 #include "wtf/HashMap.h" | 31 #include "wtf/HashMap.h" |
32 | 32 |
33 namespace blink { | 33 namespace blink { |
34 | 34 |
35 class LocalFrame; | 35 class LocalFrame; |
36 class Node; | 36 class Node; |
37 class RenderBox; | 37 class RenderBox; |
38 class RenderScrollbarPart; | 38 class RenderScrollbarPart; |
39 class RenderStyle; | 39 class RenderStyle; |
40 | 40 |
41 class RenderScrollbar FINAL : public Scrollbar { | 41 class RenderScrollbar final : public Scrollbar { |
42 protected: | 42 protected: |
43 RenderScrollbar(ScrollableArea*, ScrollbarOrientation, Node*, LocalFrame*); | 43 RenderScrollbar(ScrollableArea*, ScrollbarOrientation, Node*, LocalFrame*); |
44 | 44 |
45 public: | 45 public: |
46 friend class Scrollbar; | 46 friend class Scrollbar; |
47 static PassRefPtr<Scrollbar> createCustomScrollbar(ScrollableArea*, Scrollba
rOrientation, Node*, LocalFrame* owningFrame = 0); | 47 static PassRefPtr<Scrollbar> createCustomScrollbar(ScrollableArea*, Scrollba
rOrientation, Node*, LocalFrame* owningFrame = 0); |
48 virtual ~RenderScrollbar(); | 48 virtual ~RenderScrollbar(); |
49 | 49 |
50 RenderBox* owningRenderer() const; | 50 RenderBox* owningRenderer() const; |
51 | 51 |
52 IntRect buttonRect(ScrollbarPart); | 52 IntRect buttonRect(ScrollbarPart); |
53 IntRect trackRect(int startLength, int endLength); | 53 IntRect trackRect(int startLength, int endLength); |
54 IntRect trackPieceRectWithMargins(ScrollbarPart, const IntRect&); | 54 IntRect trackPieceRectWithMargins(ScrollbarPart, const IntRect&); |
55 | 55 |
56 int minimumThumbLength(); | 56 int minimumThumbLength(); |
57 | 57 |
58 virtual bool isOverlayScrollbar() const OVERRIDE { return false; } | 58 virtual bool isOverlayScrollbar() const override { return false; } |
59 | 59 |
60 RenderScrollbarPart* getPart(ScrollbarPart partType) { return m_parts.get(pa
rtType); } | 60 RenderScrollbarPart* getPart(ScrollbarPart partType) { return m_parts.get(pa
rtType); } |
61 | 61 |
62 private: | 62 private: |
63 virtual void setParent(Widget*) OVERRIDE; | 63 virtual void setParent(Widget*) override; |
64 virtual void setEnabled(bool) OVERRIDE; | 64 virtual void setEnabled(bool) override; |
65 | 65 |
66 virtual void setHoveredPart(ScrollbarPart) OVERRIDE; | 66 virtual void setHoveredPart(ScrollbarPart) override; |
67 virtual void setPressedPart(ScrollbarPart) OVERRIDE; | 67 virtual void setPressedPart(ScrollbarPart) override; |
68 | 68 |
69 virtual void styleChanged() OVERRIDE; | 69 virtual void styleChanged() override; |
70 | 70 |
71 virtual bool isCustomScrollbar() const OVERRIDE { return true; } | 71 virtual bool isCustomScrollbar() const override { return true; } |
72 | 72 |
73 void updateScrollbarParts(bool destroy = false); | 73 void updateScrollbarParts(bool destroy = false); |
74 | 74 |
75 PassRefPtr<RenderStyle> getScrollbarPseudoStyle(ScrollbarPart, PseudoId); | 75 PassRefPtr<RenderStyle> getScrollbarPseudoStyle(ScrollbarPart, PseudoId); |
76 void updateScrollbarPart(ScrollbarPart, bool destroy = false); | 76 void updateScrollbarPart(ScrollbarPart, bool destroy = false); |
77 | 77 |
78 // This Scrollbar(Widget) may outlive the DOM which created it (during tear
down), | 78 // This Scrollbar(Widget) may outlive the DOM which created it (during tear
down), |
79 // so we keep a reference to the Node which caused this custom scrollbar cre
ation. | 79 // so we keep a reference to the Node which caused this custom scrollbar cre
ation. |
80 // This will not create a reference cycle as the Widget tree is owned by our
containing | 80 // This will not create a reference cycle as the Widget tree is owned by our
containing |
81 // FrameView which this Node pointer can in no way keep alive. See webkit bu
g 80610. | 81 // FrameView which this Node pointer can in no way keep alive. See webkit bu
g 80610. |
82 RefPtrWillBePersistent<Node> m_owner; | 82 RefPtrWillBePersistent<Node> m_owner; |
83 | 83 |
84 LocalFrame* m_owningFrame; | 84 LocalFrame* m_owningFrame; |
85 WillBePersistentHeapHashMap<unsigned, RawPtrWillBeMember<RenderScrollbarPart
> > m_parts; | 85 WillBePersistentHeapHashMap<unsigned, RawPtrWillBeMember<RenderScrollbarPart
> > m_parts; |
86 }; | 86 }; |
87 | 87 |
88 DEFINE_TYPE_CASTS(RenderScrollbar, ScrollbarThemeClient, scrollbar, scrollbar->i
sCustomScrollbar(), scrollbar.isCustomScrollbar()); | 88 DEFINE_TYPE_CASTS(RenderScrollbar, ScrollbarThemeClient, scrollbar, scrollbar->i
sCustomScrollbar(), scrollbar.isCustomScrollbar()); |
89 | 89 |
90 } // namespace blink | 90 } // namespace blink |
91 | 91 |
92 #endif // RenderScrollbar_h | 92 #endif // RenderScrollbar_h |
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