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| 1 /* | |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
| 3 * (C) 2000 Simon Hausmann <hausmann@kde.org> | |
| 4 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. | |
| 5 * | |
| 6 * This library is free software; you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU Library General Public | |
| 8 * License as published by the Free Software Foundation; either | |
| 9 * version 2 of the License, or (at your option) any later version. | |
| 10 * | |
| 11 * This library is distributed in the hope that it will be useful, | |
| 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * Library General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU Library General Public License | |
| 17 * along with this library; see the file COPYING.LIB. If not, write to | |
| 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 19 * Boston, MA 02110-1301, USA. | |
| 20 * | |
| 21 */ | |
| 22 | |
| 23 #ifndef RenderFrameSet_h | |
| 24 #define RenderFrameSet_h | |
| 25 | |
| 26 #include "core/rendering/RenderBox.h" | |
| 27 | |
| 28 namespace blink { | |
| 29 | |
| 30 class HTMLDimension; | |
| 31 class HTMLFrameSetElement; | |
| 32 class MouseEvent; | |
| 33 | |
| 34 enum FrameEdge { LeftFrameEdge, RightFrameEdge, TopFrameEdge, BottomFrameEdge }; | |
| 35 | |
| 36 struct FrameEdgeInfo { | |
| 37 FrameEdgeInfo(bool preventResize = false, bool allowBorder = true) | |
| 38 : m_preventResize(4) | |
| 39 , m_allowBorder(4) | |
| 40 { | |
| 41 m_preventResize.fill(preventResize); | |
| 42 m_allowBorder.fill(allowBorder); | |
| 43 } | |
| 44 | |
| 45 bool preventResize(FrameEdge edge) const { return m_preventResize[edge]; } | |
| 46 bool allowBorder(FrameEdge edge) const { return m_allowBorder[edge]; } | |
| 47 | |
| 48 void setPreventResize(FrameEdge edge, bool preventResize) { m_preventResize[
edge] = preventResize; } | |
| 49 void setAllowBorder(FrameEdge edge, bool allowBorder) { m_allowBorder[edge]
= allowBorder; } | |
| 50 | |
| 51 private: | |
| 52 Vector<bool> m_preventResize; | |
| 53 Vector<bool> m_allowBorder; | |
| 54 }; | |
| 55 | |
| 56 class RenderFrameSet final : public RenderBox { | |
| 57 public: | |
| 58 RenderFrameSet(HTMLFrameSetElement*); | |
| 59 virtual ~RenderFrameSet(); | |
| 60 | |
| 61 LayoutObject* firstChild() const { ASSERT(children() == virtualChildren());
return children()->firstChild(); } | |
| 62 LayoutObject* lastChild() const { ASSERT(children() == virtualChildren()); r
eturn children()->lastChild(); } | |
| 63 | |
| 64 // If you have a RenderFrameSet, use firstChild or lastChild instead. | |
| 65 void slowFirstChild() const = delete; | |
| 66 void slowLastChild() const = delete; | |
| 67 | |
| 68 const LayoutObjectChildList* children() const { return &m_children; } | |
| 69 LayoutObjectChildList* children() { return &m_children; } | |
| 70 | |
| 71 FrameEdgeInfo edgeInfo() const; | |
| 72 | |
| 73 bool userResize(MouseEvent*); | |
| 74 | |
| 75 bool canResizeRow(const IntPoint&) const; | |
| 76 bool canResizeColumn(const IntPoint&) const; | |
| 77 | |
| 78 void notifyFrameEdgeInfoChanged(); | |
| 79 HTMLFrameSetElement* frameSet() const; | |
| 80 | |
| 81 class GridAxis { | |
| 82 WTF_MAKE_NONCOPYABLE(GridAxis); | |
| 83 public: | |
| 84 GridAxis(); | |
| 85 void resize(int); | |
| 86 | |
| 87 Vector<int> m_sizes; | |
| 88 Vector<int> m_deltas; | |
| 89 Vector<bool> m_preventResize; | |
| 90 Vector<bool> m_allowBorder; | |
| 91 int m_splitBeingResized; | |
| 92 int m_splitResizeOffset; | |
| 93 }; | |
| 94 | |
| 95 const GridAxis& rows() { return m_rows; } | |
| 96 const GridAxis& columns() { return m_cols; } | |
| 97 | |
| 98 private: | |
| 99 static const int noSplit = -1; | |
| 100 | |
| 101 virtual LayoutObjectChildList* virtualChildren() override { return children(
); } | |
| 102 virtual const LayoutObjectChildList* virtualChildren() const override { retu
rn children(); } | |
| 103 | |
| 104 virtual const char* renderName() const override { return "RenderFrameSet"; } | |
| 105 virtual bool isOfType(LayoutObjectType type) const override { return type ==
LayoutObjectFrameSet || RenderBox::isOfType(type); } | |
| 106 | |
| 107 virtual void layout() override; | |
| 108 virtual void paint(const PaintInfo&, const LayoutPoint&) override; | |
| 109 virtual void computePreferredLogicalWidths() override; | |
| 110 virtual bool isChildAllowed(LayoutObject*, const LayoutStyle&) const overrid
e; | |
| 111 virtual CursorDirective getCursor(const LayoutPoint&, Cursor&) const overrid
e; | |
| 112 | |
| 113 void setIsResizing(bool); | |
| 114 | |
| 115 void layOutAxis(GridAxis&, const Vector<HTMLDimension>&, int availableSpace)
; | |
| 116 void computeEdgeInfo(); | |
| 117 void fillFromEdgeInfo(const FrameEdgeInfo& edgeInfo, int r, int c); | |
| 118 void positionFrames(); | |
| 119 | |
| 120 int splitPosition(const GridAxis&, int split) const; | |
| 121 int hitTestSplit(const GridAxis&, int position) const; | |
| 122 | |
| 123 void startResizing(GridAxis&, int position); | |
| 124 void continueResizing(GridAxis&, int position); | |
| 125 | |
| 126 LayoutObjectChildList m_children; | |
| 127 | |
| 128 GridAxis m_rows; | |
| 129 GridAxis m_cols; | |
| 130 | |
| 131 bool m_isResizing; | |
| 132 bool m_isChildResizing; | |
| 133 }; | |
| 134 | |
| 135 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderFrameSet, isFrameSet()); | |
| 136 | |
| 137 } // namespace blink | |
| 138 | |
| 139 #endif // RenderFrameSet_h | |
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Chromium Code Reviews
Issue 929223003:
Move and rename RenderFrame and RenderFrameSet. (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master