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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2001 Dirk Mueller (mueller@kde.org) | 4 * (C) 2001 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ights reserved. | 5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ights reserved. |
6 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) | 6 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) |
7 * Copyright (C) 2011 Google Inc. All rights reserved. | 7 * Copyright (C) 2011 Google Inc. All rights reserved. |
8 * | 8 * |
9 * This library is free software; you can redistribute it and/or | 9 * This library is free software; you can redistribute it and/or |
10 * modify it under the terms of the GNU Library General Public | 10 * modify it under the terms of the GNU Library General Public |
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167 if (m_parentFlowRenderer) | 167 if (m_parentFlowRenderer) |
168 return m_parentFlowRenderer; | 168 return m_parentFlowRenderer; |
169 | 169 |
170 return m_renderingParent ? m_renderingParent->renderer() : 0; | 170 return m_renderingParent ? m_renderingParent->renderer() : 0; |
171 } | 171 } |
172 | 172 |
173 bool NodeRenderingContext::shouldCreateRenderer() const | 173 bool NodeRenderingContext::shouldCreateRenderer() const |
174 { | 174 { |
175 if (!m_renderingParent) | 175 if (!m_renderingParent) |
176 return false; | 176 return false; |
| 177 |
177 RenderObject* parentRenderer = this->parentRenderer(); | 178 RenderObject* parentRenderer = this->parentRenderer(); |
178 if (!parentRenderer) | 179 if (!parentRenderer) |
179 return false; | 180 return false; |
180 if (!parentRenderer->canHaveChildren()) | 181 if (!parentRenderer->canHaveChildren()) |
181 return false; | 182 return false; |
182 if (!m_renderingParent->childShouldCreateRenderer(*this)) | 183 if (!m_renderingParent->childShouldCreateRenderer(*this)) |
183 return false; | 184 return false; |
184 return true; | 185 return true; |
185 } | 186 } |
186 | 187 |
| 188 // Check the specific case of elements that are children of regions but are flow
ed into a flow thread themselves. |
| 189 bool NodeRenderingContext::elementInsideRegionNeedsRenderer() |
| 190 { |
| 191 Element* element = toElement(m_node); |
| 192 bool elementInsideRegionNeedsRenderer = false; |
| 193 RenderObject* parentRenderer = this->parentRenderer(); |
| 194 if ((parentRenderer && !parentRenderer->canHaveChildren() && parentRenderer-
>isRenderRegion()) |
| 195 || (!parentRenderer && element->parentElement() && element->parentElemen
t()->isInsideRegion())) { |
| 196 |
| 197 if (!m_style) |
| 198 m_style = element->styleForRenderer(); |
| 199 |
| 200 elementInsideRegionNeedsRenderer = element->shouldMoveToFlowThread(m_sty
le.get()); |
| 201 |
| 202 // Children of this element will only be allowed to be flowed into other
flow-threads if display is NOT none. |
| 203 if (element->rendererIsNeeded(*this)) |
| 204 element->setIsInsideRegion(true); |
| 205 } |
| 206 |
| 207 return elementInsideRegionNeedsRenderer; |
| 208 } |
| 209 |
187 void NodeRenderingContext::moveToFlowThreadIfNeeded() | 210 void NodeRenderingContext::moveToFlowThreadIfNeeded() |
188 { | 211 { |
189 ASSERT(m_node->isElementNode()); | |
190 ASSERT(m_style); | |
191 if (!RuntimeEnabledFeatures::cssRegionsEnabled()) | 212 if (!RuntimeEnabledFeatures::cssRegionsEnabled()) |
192 return; | 213 return; |
193 | 214 |
194 if (m_style->flowThread().isEmpty()) | 215 Element* element = toElement(m_node); |
| 216 |
| 217 if (!element->shouldMoveToFlowThread(m_style.get())) |
195 return; | 218 return; |
196 | 219 |
197 // As per http://dev.w3.org/csswg/css3-regions/#flow-into, pseudo-elements s
uch as ::first-line, ::first-letter, ::before or ::after | |
198 // cannot be directly collected into a named flow. | |
199 if (m_node->isPseudoElement()) | |
200 return; | |
201 | |
202 // FIXME: Do not collect elements if they are in shadow tree. | |
203 if (m_node->isInShadowTree()) | |
204 return; | |
205 | |
206 if (m_node->isElementNode() && FullscreenController::isActiveFullScreenEleme
nt(toElement(m_node))) | |
207 return; | |
208 | |
209 // Allow only svg root elements to be directly collected by a render flow th
read. | |
210 if (m_node->isSVGElement() | |
211 && (!(m_node->hasTagName(SVGNames::svgTag) && m_node->parentNode() && !m
_node->parentNode()->isSVGElement()))) | |
212 return; | |
213 | |
214 m_flowThread = m_style->flowThread(); | |
215 ASSERT(m_node->document()->renderView()); | 220 ASSERT(m_node->document()->renderView()); |
216 FlowThreadController* flowThreadController = m_node->document()->renderView(
)->flowThreadController(); | 221 FlowThreadController* flowThreadController = m_node->document()->renderView(
)->flowThreadController(); |
217 m_parentFlowRenderer = flowThreadController->ensureRenderFlowThreadWithName(
m_flowThread); | 222 m_parentFlowRenderer = flowThreadController->ensureRenderFlowThreadWithName(
m_style->flowThread()); |
218 flowThreadController->registerNamedFlowContentNode(m_node, m_parentFlowRende
rer); | 223 flowThreadController->registerNamedFlowContentNode(m_node, m_parentFlowRende
rer); |
219 } | 224 } |
220 | 225 |
221 bool NodeRenderingContext::isOnEncapsulationBoundary() const | 226 bool NodeRenderingContext::isOnEncapsulationBoundary() const |
222 { | 227 { |
223 return isOnUpperEncapsulationBoundary() || isLowerEncapsulationBoundary(m_pa
rentDetails.insertionPoint()) || isLowerEncapsulationBoundary(m_node->parentNode
()); | 228 return isOnUpperEncapsulationBoundary() || isLowerEncapsulationBoundary(m_pa
rentDetails.insertionPoint()) || isLowerEncapsulationBoundary(m_node->parentNode
()); |
224 } | 229 } |
225 | 230 |
226 bool NodeRenderingContext::isOnUpperEncapsulationBoundary() const | 231 bool NodeRenderingContext::isOnUpperEncapsulationBoundary() const |
227 { | 232 { |
228 return m_node->parentNode() && m_node->parentNode()->isShadowRoot(); | 233 return m_node->parentNode() && m_node->parentNode()->isShadowRoot(); |
229 } | 234 } |
230 | 235 |
231 void NodeRenderingContext::createRendererForElementIfNeeded() | 236 void NodeRenderingContext::createRendererForElementIfNeeded() |
232 { | 237 { |
233 ASSERT(!m_node->renderer()); | 238 ASSERT(!m_node->renderer()); |
234 | 239 |
235 Element* element = toElement(m_node); | 240 Element* element = toElement(m_node); |
236 | 241 |
237 if (!shouldCreateRenderer()) | 242 element->setIsInsideRegion(false); |
| 243 |
| 244 if (!shouldCreateRenderer() && !elementInsideRegionNeedsRenderer()) |
238 return; | 245 return; |
| 246 |
239 if (!m_style) | 247 if (!m_style) |
240 m_style = element->styleForRenderer(); | 248 m_style = element->styleForRenderer(); |
241 ASSERT(m_style); | 249 ASSERT(m_style); |
242 | 250 |
243 moveToFlowThreadIfNeeded(); | 251 moveToFlowThreadIfNeeded(); |
244 | 252 |
245 if (!element->rendererIsNeeded(*this)) | 253 if (!element->rendererIsNeeded(*this)) |
246 return; | 254 return; |
247 | 255 |
248 RenderObject* parentRenderer = this->parentRenderer(); | 256 RenderObject* parentRenderer = this->parentRenderer(); |
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308 newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); | 316 newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); |
309 | 317 |
310 RenderObject* nextRenderer = this->nextRenderer(); | 318 RenderObject* nextRenderer = this->nextRenderer(); |
311 textNode->setRenderer(newRenderer); | 319 textNode->setRenderer(newRenderer); |
312 // Parent takes care of the animations, no need to call setAnimatableStyle. | 320 // Parent takes care of the animations, no need to call setAnimatableStyle. |
313 newRenderer->setStyle(m_style.release()); | 321 newRenderer->setStyle(m_style.release()); |
314 parentRenderer->addChild(newRenderer, nextRenderer); | 322 parentRenderer->addChild(newRenderer, nextRenderer); |
315 } | 323 } |
316 | 324 |
317 } | 325 } |
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