author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
Mon, 30 Mar 2009 12:54:55 +0300 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (C) 2003, 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public License |
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* along with this library; see the file COPYING.LIB. If not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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*/ |
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#include "config.h" |
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#include "InlineBox.h" |
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#include "HitTestResult.h" |
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#include "InlineFlowBox.h" |
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#include "RenderArena.h" |
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#include "RootInlineBox.h" |
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using namespace std; |
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namespace WebCore { |
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#ifndef NDEBUG |
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static bool inInlineBoxDetach; |
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#endif |
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#ifndef NDEBUG |
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InlineBox::~InlineBox() |
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{ |
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if (!m_hasBadParent && m_parent) |
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m_parent->setHasBadChildList(); |
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} |
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#endif |
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void InlineBox::remove() |
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{ |
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if (parent()) |
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parent()->removeChild(this); |
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} |
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void InlineBox::destroy(RenderArena* renderArena) |
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{ |
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#ifndef NDEBUG |
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inInlineBoxDetach = true; |
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#endif |
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delete this; |
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#ifndef NDEBUG |
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inInlineBoxDetach = false; |
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#endif |
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// Recover the size left there for us by operator delete and free the memory. |
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renderArena->free(*(size_t *)this, this); |
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} |
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void* InlineBox::operator new(size_t sz, RenderArena* renderArena) throw() |
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{ |
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return renderArena->allocate(sz); |
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} |
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void InlineBox::operator delete(void* ptr, size_t sz) |
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{ |
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ASSERT(inInlineBoxDetach); |
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// Stash size where destroy can find it. |
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*(size_t *)ptr = sz; |
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} |
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#ifndef NDEBUG |
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void InlineBox::showTreeForThis() const |
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{ |
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if (m_object) |
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m_object->showTreeForThis(); |
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} |
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#endif |
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int InlineBox::caretMinOffset() const |
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{ |
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return 0; |
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} |
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int InlineBox::caretMaxOffset() const |
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{ |
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return 1; |
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} |
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unsigned InlineBox::caretMaxRenderedOffset() const |
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{ |
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return 1; |
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} |
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void InlineBox::dirtyLineBoxes() |
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{ |
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markDirty(); |
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for (InlineFlowBox* curr = parent(); curr && !curr->isDirty(); curr = curr->parent()) |
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curr->markDirty(); |
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} |
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void InlineBox::deleteLine(RenderArena* arena) |
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{ |
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if (!m_extracted) |
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m_object->setInlineBoxWrapper(0); |
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destroy(arena); |
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} |
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115 |
|
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void InlineBox::extractLine() |
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{ |
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m_extracted = true; |
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m_object->setInlineBoxWrapper(0); |
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} |
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121 |
|
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void InlineBox::attachLine() |
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123 |
{ |
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m_extracted = false; |
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m_object->setInlineBoxWrapper(this); |
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126 |
} |
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127 |
|
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void InlineBox::adjustPosition(int dx, int dy) |
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{ |
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m_x += dx; |
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m_y += dy; |
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if (m_object->isReplaced() || m_object->isBR()) |
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m_object->setPos(m_object->xPos() + dx, m_object->yPos() + dy); |
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} |
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135 |
|
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void InlineBox::paint(RenderObject::PaintInfo& paintInfo, int tx, int ty) |
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{ |
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if (!object()->shouldPaintWithinRoot(paintInfo) || (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseSelection)) |
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return; |
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140 |
|
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// Paint all phases of replaced elements atomically, as though the replaced element established its |
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// own stacking context. (See Appendix E.2, section 6.4 on inline block/table elements in the CSS2.1 |
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// specification.) |
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bool paintSelectionOnly = paintInfo.phase == PaintPhaseSelection; |
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RenderObject::PaintInfo info(paintInfo); |
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info.phase = paintSelectionOnly ? paintInfo.phase : PaintPhaseBlockBackground; |
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object()->paint(info, tx, ty); |
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148 |
if (!paintSelectionOnly) { |
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info.phase = PaintPhaseChildBlockBackgrounds; |
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object()->paint(info, tx, ty); |
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info.phase = PaintPhaseFloat; |
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object()->paint(info, tx, ty); |
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info.phase = PaintPhaseForeground; |
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object()->paint(info, tx, ty); |
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info.phase = PaintPhaseOutline; |
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object()->paint(info, tx, ty); |
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157 |
} |
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158 |
} |
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159 |
|
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160 |
bool InlineBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty) |
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161 |
{ |
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// Hit test all phases of replaced elements atomically, as though the replaced element established its |
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163 |
// own stacking context. (See Appendix E.2, section 6.4 on inline block/table elements in the CSS2.1 |
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164 |
// specification.) |
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165 |
return object()->hitTest(request, result, x, y, tx, ty); |
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166 |
} |
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167 |
|
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168 |
RootInlineBox* InlineBox::root() |
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169 |
{ |
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170 |
if (m_parent) |
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return m_parent->root(); |
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172 |
ASSERT(isRootInlineBox()); |
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173 |
return static_cast<RootInlineBox*>(this); |
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174 |
} |
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|
175 |
|
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176 |
bool InlineBox::nextOnLineExists() const |
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177 |
{ |
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178 |
if (!m_determinedIfNextOnLineExists) { |
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179 |
m_determinedIfNextOnLineExists = true; |
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180 |
|
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181 |
if (!parent()) |
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182 |
m_nextOnLineExists = false; |
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183 |
else if (nextOnLine()) |
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184 |
m_nextOnLineExists = true; |
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185 |
else |
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186 |
m_nextOnLineExists = parent()->nextOnLineExists(); |
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187 |
} |
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188 |
return m_nextOnLineExists; |
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|
189 |
} |
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|
190 |
|
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|
191 |
bool InlineBox::prevOnLineExists() const |
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192 |
{ |
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193 |
if (!m_determinedIfPrevOnLineExists) { |
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|
194 |
m_determinedIfPrevOnLineExists = true; |
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|
195 |
|
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|
196 |
if (!parent()) |
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197 |
m_prevOnLineExists = false; |
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198 |
else if (prevOnLine()) |
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199 |
m_prevOnLineExists = true; |
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200 |
else |
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201 |
m_prevOnLineExists = parent()->prevOnLineExists(); |
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|
202 |
} |
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|
203 |
return m_prevOnLineExists; |
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204 |
} |
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|
205 |
|
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206 |
InlineBox* InlineBox::firstLeafChild() |
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207 |
{ |
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208 |
return this; |
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|
209 |
} |
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210 |
|
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211 |
InlineBox* InlineBox::lastLeafChild() |
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212 |
{ |
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213 |
return this; |
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|
214 |
} |
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|
215 |
|
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216 |
InlineBox* InlineBox::nextLeafChild() |
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217 |
{ |
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218 |
return parent() ? parent()->firstLeafChildAfterBox(this) : 0; |
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|
219 |
} |
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|
220 |
|
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|
221 |
InlineBox* InlineBox::prevLeafChild() |
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{ |
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return parent() ? parent()->lastLeafChildBeforeBox(this) : 0; |
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} |
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RenderObject::SelectionState InlineBox::selectionState() |
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{ |
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return object()->selectionState(); |
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} |
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bool InlineBox::canAccommodateEllipsis(bool ltr, int blockEdge, int ellipsisWidth) |
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{ |
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// Non-replaced elements can always accommodate an ellipsis. |
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if (!m_object || !m_object->isReplaced()) |
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return true; |
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IntRect boxRect(m_x, 0, m_width, 10); |
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IntRect ellipsisRect(ltr ? blockEdge - ellipsisWidth : blockEdge, 0, ellipsisWidth, 10); |
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return !(boxRect.intersects(ellipsisRect)); |
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} |
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int InlineBox::placeEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth, bool&) |
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{ |
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// Use -1 to mean "we didn't set the position." |
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return -1; |
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} |
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} // namespace WebCore |
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#ifndef NDEBUG |
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void showTree(const WebCore::InlineBox* b) |
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{ |
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if (b) |
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b->showTreeForThis(); |
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} |
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#endif |