1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 RenderInline_h
24 #define RenderInline_h
25
26 #include "RenderBoxModelObject.h"
27 #include "RenderLineBoxList.h"
28
29 namespace WebCore {
30
31 class Position;
32
33 class RenderInline : public RenderBoxModelObject {
34 public:
35 RenderInline(Node*);
36
37 virtual void destroy();
38
39 virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
40
41 virtual int marginLeft() const;
42 virtual int marginRight() const;
43
44 virtual void absoluteRects(Vector<IntRect>&, int tx, int ty);
45 virtual void absoluteQuads(Vector<FloatQuad>&);
46
47 IntRect linesBoundingBox() const;
48
49 InlineFlowBox* createAndAppendInlineFlowBox();
50
51 void dirtyLineBoxes(bool fullLayout);
52
lineBoxes()53 RenderLineBoxList* lineBoxes() { return &m_lineBoxes; }
lineBoxes()54 const RenderLineBoxList* lineBoxes() const { return &m_lineBoxes; }
55
firstLineBox()56 InlineFlowBox* firstLineBox() const { return m_lineBoxes.firstLineBox(); }
lastLineBox()57 InlineFlowBox* lastLineBox() const { return m_lineBoxes.lastLineBox(); }
58
continuation()59 RenderBoxModelObject* continuation() const { return m_continuation; }
60
61 virtual void updateDragState(bool dragOn);
62
63 IntSize relativePositionedInlineOffset(const RenderBox* child) const;
64
65 virtual void addFocusRingRects(GraphicsContext*, int tx, int ty);
66 void paintOutline(GraphicsContext*, int tx, int ty);
67
68 int verticalPositionFromCache(bool firstLine) const;
invalidateVerticalPosition()69 void invalidateVerticalPosition() { m_verticalPosition = PositionUndefined; }
70
71 private:
virtualChildren()72 virtual RenderObjectChildList* virtualChildren() { return children(); }
virtualChildren()73 virtual const RenderObjectChildList* virtualChildren() const { return children(); }
children()74 const RenderObjectChildList* children() const { return &m_children; }
children()75 RenderObjectChildList* children() { return &m_children; }
76
77 virtual const char* renderName() const;
78
isRenderInline()79 virtual bool isRenderInline() const { return true; }
80
81 void addChildToContinuation(RenderObject* newChild, RenderObject* beforeChild);
82 virtual void addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild = 0);
83
84 void splitInlines(RenderBlock* fromBlock, RenderBlock* toBlock, RenderBlock* middleBlock,
85 RenderObject* beforeChild, RenderBoxModelObject* oldCont);
86 void splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox,
87 RenderObject* newChild, RenderBoxModelObject* oldCont);
88
layout()89 virtual void layout() { ASSERT_NOT_REACHED(); } // Do nothing for layout()
90
91 virtual void paint(PaintInfo&, int tx, int ty);
92
93 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
94
requiresLayer()95 virtual bool requiresLayer() const { return isRelPositioned() || isTransparent() || hasMask(); }
96
97 virtual int offsetLeft() const;
98 virtual int offsetTop() const;
offsetWidth()99 virtual int offsetWidth() const { return linesBoundingBox().width(); }
offsetHeight()100 virtual int offsetHeight() const { return linesBoundingBox().height(); }
101
102 // Just ignore top/bottom margins on RenderInlines.
marginTop()103 virtual int marginTop() const { return 0; }
marginBottom()104 virtual int marginBottom() const { return 0; }
105 virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer);
106 virtual IntRect rectWithOutlineForRepaint(RenderBoxModelObject* repaintContainer, int outlineWidth);
107 virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& rect, bool fixed);
108
109 virtual VisiblePosition positionForPoint(const IntPoint&);
110
borderBoundingBox()111 virtual IntRect borderBoundingBox() const
112 {
113 IntRect boundingBox = linesBoundingBox();
114 return IntRect(0, 0, boundingBox.width(), boundingBox.height());
115 }
116
117 virtual InlineFlowBox* createInlineFlowBox(); // Subclassed by SVG and Ruby
118
dirtyLinesFromChangedChild(RenderObject * child)119 virtual void dirtyLinesFromChangedChild(RenderObject* child) { m_lineBoxes.dirtyLinesFromChangedChild(this, child); }
120
121 virtual int lineHeight(bool firstLine, bool isRootLineBox = false) const;
122
123 RenderInline* inlineContinuation() const;
setContinuation(RenderBoxModelObject * c)124 void setContinuation(RenderBoxModelObject* c) { m_continuation = c; }
125
126 virtual void childBecameNonInline(RenderObject* child);
127
128 virtual void updateHitTestResult(HitTestResult&, const IntPoint&);
129
130 virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
131
132 #if ENABLE(DASHBOARD_SUPPORT)
133 virtual void addDashboardRegions(Vector<DashboardRegionValue>&);
134 #endif
135
136 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
137 virtual void updateBoxModelInfoFromStyle();
138
139 static RenderInline* cloneInline(RenderInline* src);
140
141 void paintOutlineForLine(GraphicsContext*, int tx, int ty, const IntRect& prevLine, const IntRect& thisLine, const IntRect& nextLine);
142 RenderBoxModelObject* continuationBefore(RenderObject* beforeChild);
143
144 RenderObjectChildList m_children;
145 RenderLineBoxList m_lineBoxes; // All of the line boxes created for this inline flow. For example, <i>Hello<br>world.</i> will have two <i> line boxes.
146
147 RenderBoxModelObject* m_continuation; // Can be either a block or an inline. <b><i><p>Hello</p></i></b>. In this example the <i> will have a block as its continuation but the
148 // <b> will just have an inline as its continuation.
149 mutable int m_lineHeight;
150 mutable int m_verticalPosition;
151 };
152
toRenderInline(RenderObject * object)153 inline RenderInline* toRenderInline(RenderObject* object)
154 {
155 ASSERT(!object || object->isRenderInline());
156 return static_cast<RenderInline*>(object);
157 }
158
toRenderInline(const RenderObject * object)159 inline const RenderInline* toRenderInline(const RenderObject* object)
160 {
161 ASSERT(!object || object->isRenderInline());
162 return static_cast<const RenderInline*>(object);
163 }
164
165 // This will catch anyone doing an unnecessary cast.
166 void toRenderInline(const RenderInline*);
167
168 } // namespace WebCore
169
170 #endif // RenderInline_h
171