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| 1 /* | |
| 2 * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef RenderScrollbar_h | |
| 27 #define RenderScrollbar_h | |
| 28 | |
| 29 #include "core/layout/style/LayoutStyleConstants.h" | |
| 30 #include "platform/heap/Handle.h" | |
| 31 #include "platform/scroll/Scrollbar.h" | |
| 32 #include "wtf/HashMap.h" | |
| 33 | |
| 34 namespace blink { | |
| 35 | |
| 36 class LocalFrame; | |
| 37 class Node; | |
| 38 class RenderBox; | |
| 39 class RenderScrollbarPart; | |
| 40 class LayoutStyle; | |
| 41 | |
| 42 class RenderScrollbar final : public Scrollbar { | |
| 43 public: | |
| 44 static PassRefPtrWillBeRawPtr<Scrollbar> createCustomScrollbar(ScrollableAre
a*, ScrollbarOrientation, Node*, LocalFrame* owningFrame = 0); | |
| 45 virtual ~RenderScrollbar(); | |
| 46 | |
| 47 RenderBox* owningRenderer() const; | |
| 48 | |
| 49 IntRect buttonRect(ScrollbarPart); | |
| 50 IntRect trackRect(int startLength, int endLength); | |
| 51 IntRect trackPieceRectWithMargins(ScrollbarPart, const IntRect&); | |
| 52 | |
| 53 int minimumThumbLength(); | |
| 54 | |
| 55 virtual bool isOverlayScrollbar() const override { return false; } | |
| 56 | |
| 57 RenderScrollbarPart* getPart(ScrollbarPart partType) { return m_parts.get(pa
rtType); } | |
| 58 | |
| 59 virtual void trace(Visitor*) override; | |
| 60 | |
| 61 protected: | |
| 62 RenderScrollbar(ScrollableArea*, ScrollbarOrientation, Node*, LocalFrame*); | |
| 63 | |
| 64 private: | |
| 65 friend class Scrollbar; | |
| 66 | |
| 67 virtual void setParent(Widget*) override; | |
| 68 virtual void setEnabled(bool) override; | |
| 69 | |
| 70 virtual void setHoveredPart(ScrollbarPart) override; | |
| 71 virtual void setPressedPart(ScrollbarPart) override; | |
| 72 | |
| 73 virtual void styleChanged() override; | |
| 74 | |
| 75 virtual bool isCustomScrollbar() const override { return true; } | |
| 76 | |
| 77 void updateScrollbarParts(bool destroy = false); | |
| 78 | |
| 79 PassRefPtr<LayoutStyle> getScrollbarPseudoStyle(ScrollbarPart, PseudoId); | |
| 80 void updateScrollbarPart(ScrollbarPart, bool destroy = false); | |
| 81 | |
| 82 // This Scrollbar(Widget) may outlive the DOM which created it (during tear
down), | |
| 83 // so we keep a reference to the Node which caused this custom scrollbar cre
ation. | |
| 84 // This will not create a reference cycle as the Widget tree is owned by our
containing | |
| 85 // FrameView which this Node pointer can in no way keep alive. See webkit bu
g 80610. | |
| 86 RefPtrWillBeMember<Node> m_owner; | |
| 87 | |
| 88 RawPtrWillBeMember<LocalFrame> m_owningFrame; | |
| 89 | |
| 90 HashMap<unsigned, RenderScrollbarPart*> m_parts; | |
| 91 }; | |
| 92 | |
| 93 DEFINE_TYPE_CASTS(RenderScrollbar, ScrollbarThemeClient, scrollbar, scrollbar->i
sCustomScrollbar(), scrollbar.isCustomScrollbar()); | |
| 94 | |
| 95 } // namespace blink | |
| 96 | |
| 97 #endif // RenderScrollbar_h | |
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Chromium Code Reviews
Issue 951453003:
Rename rendering/RenderScrollbar* to layout/LayoutScrollbar* (Closed)
Base URL: svn://svn.chromium.org/blink/trunk