1/*
2 * Copyright (C) 1997 Martin Jones (mjones@kde.org)
3 *           (C) 1997 Torben Weis (weis@kde.org)
4 *           (C) 1998 Waldo Bastian (bastian@kde.org)
5 *           (C) 1999 Lars Knoll (knoll@kde.org)
6 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
7 * Copyright (C) 2003, 2004, 2005, 2006, 2009, 2013 Apple Inc. All rights reserved.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * Library General Public License for more details.
18 *
19 * You should have received a copy of the GNU Library General Public License
20 * along with this library; see the file COPYING.LIB.  If not, write to
21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
23 */
24
25#ifndef RenderTableRow_h
26#define RenderTableRow_h
27
28#include "core/rendering/RenderTableSection.h"
29
30namespace blink {
31
32static const unsigned unsetRowIndex = 0x7FFFFFFF;
33static const unsigned maxRowIndex = 0x7FFFFFFE; // 2,147,483,646
34
35class RenderTableRow FINAL : public RenderBox {
36public:
37    explicit RenderTableRow(Element*);
38    virtual void trace(Visitor*) OVERRIDE;
39
40    RenderTableCell* firstCell() const;
41    RenderTableCell* lastCell() const;
42
43    RenderTableRow* previousRow() const;
44    RenderTableRow* nextRow() const;
45
46    const RenderObjectChildList* children() const { return &m_children; }
47    RenderObjectChildList* children() { return &m_children; }
48
49    RenderTableSection* section() const { return toRenderTableSection(parent()); }
50    RenderTable* table() const { return toRenderTable(parent()->parent()); }
51
52    static RenderTableRow* createAnonymous(Document*);
53    static RenderTableRow* createAnonymousWithParentRenderer(const RenderObject*);
54    virtual RenderBox* createAnonymousBoxWithSameTypeAs(const RenderObject* parent) const OVERRIDE
55    {
56        return createAnonymousWithParentRenderer(parent);
57    }
58
59    void setRowIndex(unsigned rowIndex)
60    {
61        if (UNLIKELY(rowIndex > maxRowIndex))
62            CRASH();
63
64        m_rowIndex = rowIndex;
65    }
66
67    bool rowIndexWasSet() const { return m_rowIndex != unsetRowIndex; }
68    unsigned rowIndex() const
69    {
70        ASSERT(rowIndexWasSet());
71        ASSERT(!section() || !section()->needsCellRecalc()); // index may be bogus if cells need recalc.
72        return m_rowIndex;
73    }
74
75    const BorderValue& borderAdjoiningTableStart() const
76    {
77        if (section()->hasSameDirectionAs(table()))
78            return style()->borderStart();
79
80        return style()->borderEnd();
81    }
82
83    const BorderValue& borderAdjoiningTableEnd() const
84    {
85        if (section()->hasSameDirectionAs(table()))
86            return style()->borderEnd();
87
88        return style()->borderStart();
89    }
90
91    const BorderValue& borderAdjoiningStartCell(const RenderTableCell*) const;
92    const BorderValue& borderAdjoiningEndCell(const RenderTableCell*) const;
93
94    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE;
95
96private:
97    virtual RenderObjectChildList* virtualChildren() OVERRIDE { return children(); }
98    virtual const RenderObjectChildList* virtualChildren() const OVERRIDE { return children(); }
99
100    virtual const char* renderName() const OVERRIDE { return (isAnonymous() || isPseudoElement()) ? "RenderTableRow (anonymous)" : "RenderTableRow"; }
101
102    virtual bool isTableRow() const OVERRIDE { return true; }
103
104    virtual void willBeRemovedFromTree() OVERRIDE;
105
106    virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0) OVERRIDE;
107    virtual void layout() OVERRIDE;
108
109    virtual LayerType layerTypeRequired() const OVERRIDE
110    {
111        if (hasTransform() || hasHiddenBackface() || hasClipPath() || createsGroup() || style()->shouldCompositeForCurrentAnimations())
112            return NormalLayer;
113
114        if (hasOverflowClip())
115            return OverflowClipLayer;
116
117        return NoLayer;
118    }
119
120    virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE;
121
122    virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) OVERRIDE;
123
124    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
125
126    void nextSibling() const WTF_DELETED_FUNCTION;
127    void previousSibling() const WTF_DELETED_FUNCTION;
128
129    RenderObjectChildList m_children;
130    unsigned m_rowIndex : 31;
131};
132
133DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderTableRow, isTableRow());
134
135inline RenderTableRow* RenderTableRow::previousRow() const
136{
137    return toRenderTableRow(RenderObject::previousSibling());
138}
139
140inline RenderTableRow* RenderTableRow::nextRow() const
141{
142    return toRenderTableRow(RenderObject::nextSibling());
143}
144
145inline RenderTableRow* RenderTableSection::firstRow() const
146{
147    ASSERT(children() == virtualChildren());
148    return toRenderTableRow(children()->firstChild());
149}
150
151inline RenderTableRow* RenderTableSection::lastRow() const
152{
153    ASSERT(children() == virtualChildren());
154    return toRenderTableRow(children()->lastChild());
155}
156
157} // namespace blink
158
159#endif // RenderTableRow_h
160