1 /*
2 * Copyright (C) 2010, 2011 Nokia Corporation and/or its subsidiary(-ies)
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21 #include "config.h"
22 #include "RenderDetails.h"
23
24 #include "CSSStyleSelector.h"
25 #include "HTMLDetailsElement.h"
26 #include "HTMLNames.h"
27
28 namespace WebCore {
29
30 using namespace HTMLNames;
31
RenderDetails(Node * node)32 RenderDetails::RenderDetails(Node* node)
33 : RenderBlock(node)
34 , m_summaryBlock(0)
35 , m_contentBlock(0)
36 , m_mainSummary(0)
37 {
38 }
39
summaryBlock()40 RenderBlock* RenderDetails::summaryBlock()
41 {
42 if (!m_summaryBlock) {
43 m_summaryBlock = createAnonymousBlock();
44 RenderBlock::addChild(m_summaryBlock, m_contentBlock);
45 }
46 return m_summaryBlock;
47 }
48
contentBlock()49 RenderBlock* RenderDetails::contentBlock()
50 {
51 if (!m_contentBlock) {
52 m_contentBlock = createAnonymousBlock();
53 RenderBlock::addChild(m_contentBlock);
54 }
55 return m_contentBlock;
56 }
57
addChild(RenderObject * newChild,RenderObject * beforeChild)58 void RenderDetails::addChild(RenderObject* newChild, RenderObject* beforeChild)
59 {
60 if (beforeChild && beforeChild == m_mainSummary)
61 beforeChild = getRenderPosition(m_mainSummary);
62 contentBlock()->addChild(newChild, beforeChild);
63 }
64
removeChild(RenderObject * oldChild)65 void RenderDetails::removeChild(RenderObject* oldChild)
66 {
67 if (oldChild == m_summaryBlock) {
68 RenderBlock::removeChild(oldChild);
69 m_summaryBlock = 0;
70 return;
71 }
72
73 if (oldChild == m_contentBlock) {
74 RenderBlock::removeChild(oldChild);
75 m_contentBlock = 0;
76 return;
77 }
78
79 if (oldChild == m_mainSummary && m_summaryBlock) {
80 m_summaryBlock->removeChild(m_mainSummary);
81 return;
82 }
83
84 if (m_contentBlock) {
85 m_contentBlock->removeChild(oldChild);
86 return;
87 }
88
89 ASSERT_NOT_REACHED();
90 }
91
styleDidChange(StyleDifference diff,const RenderStyle * oldStyle)92 void RenderDetails::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
93 {
94 RenderBlock::styleDidChange(diff, oldStyle);
95 // Ensure that if we ended up being inline that we set our replaced flag
96 // so that we're treated like an inline-block.
97 setReplaced(isInline());
98 }
99
getRenderPosition(RenderObject * object)100 RenderObject* RenderDetails::getRenderPosition(RenderObject* object)
101 {
102 if (!object || !object->node())
103 return 0;
104
105 Node* element = object->node()->nextSibling();
106
107 while (element && !element->renderer())
108 element = element->nextSibling();
109
110 return element ? element->renderer() : 0;
111 }
112
summaryDestroyed(RenderObject * summary)113 void RenderDetails::summaryDestroyed(RenderObject* summary)
114 {
115 if (summary == m_mainSummary)
116 m_mainSummary = 0;
117 }
118
moveSummaryToContents()119 void RenderDetails::moveSummaryToContents()
120 {
121 if (!m_mainSummary)
122 return;
123
124 m_mainSummary->remove();
125 contentBlock()->addChild(m_mainSummary, getRenderPosition(m_mainSummary));
126 m_mainSummary = 0;
127 }
128
replaceMainSummary(RenderObject * newSummary)129 void RenderDetails::replaceMainSummary(RenderObject* newSummary)
130 {
131 ASSERT(newSummary);
132 if (m_mainSummary == newSummary)
133 return;
134
135 moveSummaryToContents();
136 newSummary->remove();
137 summaryBlock()->addChild(newSummary);
138 m_mainSummary = newSummary;
139 }
140
checkMainSummary()141 void RenderDetails::checkMainSummary()
142 {
143 if (!node() || !node()->hasTagName(detailsTag))
144 return;
145
146 Node* mainSummaryNode = static_cast<HTMLDetailsElement*>(node())->mainSummary();
147 if (mainSummaryNode && mainSummaryNode->renderer())
148 replaceMainSummary(mainSummaryNode->renderer());
149 }
150
layout()151 void RenderDetails::layout()
152 {
153 checkMainSummary();
154 RenderBlock::layout();
155 }
156
isOpen() const157 bool RenderDetails::isOpen() const
158 {
159 return node() && node()->isElementNode() ? !static_cast<Element*>(node())->getAttribute(openAttr).isNull() : false;
160 }
161
162 } // namespace WebCore
163