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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Neither the name of Google Inc. nor the names of its | 10 * * Neither the name of Google Inc. nor the names of its |
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28 | 28 |
29 #include "bindings/core/v8/ExceptionState.h" | 29 #include "bindings/core/v8/ExceptionState.h" |
30 #include "core/css/StyleSheetList.h" | 30 #include "core/css/StyleSheetList.h" |
31 #include "core/css/resolver/StyleResolver.h" | 31 #include "core/css/resolver/StyleResolver.h" |
32 #include "core/css/resolver/StyleSharingDepthScope.h" | 32 #include "core/css/resolver/StyleSharingDepthScope.h" |
33 #include "core/dom/ElementTraversal.h" | 33 #include "core/dom/ElementTraversal.h" |
34 #include "core/dom/StyleEngine.h" | 34 #include "core/dom/StyleEngine.h" |
35 #include "core/dom/Text.h" | 35 #include "core/dom/Text.h" |
36 #include "core/dom/shadow/ElementShadow.h" | 36 #include "core/dom/shadow/ElementShadow.h" |
37 #include "core/dom/shadow/InsertionPoint.h" | 37 #include "core/dom/shadow/InsertionPoint.h" |
38 #include "core/dom/shadow/ShadowRootRareData.h" | |
39 #include "core/dom/shadow/ShadowRootRareDataV0.h" | 38 #include "core/dom/shadow/ShadowRootRareDataV0.h" |
39 #include "core/dom/shadow/SlotAssignment.h" | |
40 #include "core/editing/serializers/Serialization.h" | 40 #include "core/editing/serializers/Serialization.h" |
41 #include "core/html/HTMLShadowElement.h" | 41 #include "core/html/HTMLShadowElement.h" |
42 #include "core/html/HTMLSlotElement.h" | |
42 #include "public/platform/Platform.h" | 43 #include "public/platform/Platform.h" |
43 | 44 |
44 namespace blink { | 45 namespace blink { |
45 | 46 |
46 struct SameSizeAsShadowRoot : public DocumentFragment, public TreeScope { | 47 struct SameSizeAsShadowRoot : public DocumentFragment, public TreeScope { |
kochi
2016/04/28 08:36:36
Looks you need to update this as well.
| |
47 char emptyClassFieldsDueToGCMixinMarker[1]; | 48 char emptyClassFieldsDueToGCMixinMarker[1]; |
48 Member<void*> willbeMember[3]; | 49 Member<void*> willbeMember[3]; |
49 unsigned countersAndFlags[1]; | 50 unsigned countersAndFlags[1]; |
50 }; | 51 }; |
51 | 52 |
52 static_assert(sizeof(ShadowRoot) == sizeof(SameSizeAsShadowRoot), "ShadowRoot sh ould stay small"); | 53 static_assert(sizeof(ShadowRoot) == sizeof(SameSizeAsShadowRoot), "ShadowRoot sh ould stay small"); |
53 | 54 |
54 ShadowRoot::ShadowRoot(Document& document, ShadowRootType type) | 55 ShadowRoot::ShadowRoot(Document& document, ShadowRootType type) |
55 : DocumentFragment(0, CreateShadowRoot) | 56 : DocumentFragment(0, CreateShadowRoot) |
56 , TreeScope(*this, document) | 57 , TreeScope(*this, document) |
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95 DCHECK_EQ(type(), ShadowRootType::V0); | 96 DCHECK_EQ(type(), ShadowRootType::V0); |
96 ensureShadowRootRareDataV0().setYoungerShadowRoot(root); | 97 ensureShadowRootRareDataV0().setYoungerShadowRoot(root); |
97 } | 98 } |
98 | 99 |
99 void ShadowRoot::setOlderShadowRoot(ShadowRoot& root) | 100 void ShadowRoot::setOlderShadowRoot(ShadowRoot& root) |
100 { | 101 { |
101 DCHECK_EQ(type(), ShadowRootType::V0); | 102 DCHECK_EQ(type(), ShadowRootType::V0); |
102 ensureShadowRootRareDataV0().setOlderShadowRoot(root); | 103 ensureShadowRootRareDataV0().setOlderShadowRoot(root); |
103 } | 104 } |
104 | 105 |
106 SlotAssignment& ShadowRoot::ensureSlotAssignment() | |
107 { | |
108 if (!m_slotAssignment) | |
109 m_slotAssignment = SlotAssignment::create(); | |
110 return *m_slotAssignment; | |
111 } | |
112 | |
113 HTMLSlotElement* ShadowRoot::assignedSlotFor(const Node& node) const | |
114 { | |
115 DCHECK(m_slotAssignment); | |
116 return m_slotAssignment->assignedSlotFor(node); | |
117 } | |
118 | |
105 Node* ShadowRoot::cloneNode(bool, ExceptionState& exceptionState) | 119 Node* ShadowRoot::cloneNode(bool, ExceptionState& exceptionState) |
106 { | 120 { |
107 exceptionState.throwDOMException(NotSupportedError, "ShadowRoot nodes are no t clonable."); | 121 exceptionState.throwDOMException(NotSupportedError, "ShadowRoot nodes are no t clonable."); |
108 return nullptr; | 122 return nullptr; |
109 } | 123 } |
110 | 124 |
111 String ShadowRoot::innerHTML() const | 125 String ShadowRoot::innerHTML() const |
112 { | 126 { |
113 return createMarkup(this, ChildrenOnly); | 127 return createMarkup(this, ChildrenOnly); |
114 } | 128 } |
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202 { | 216 { |
203 ++m_numberOfStyles; | 217 ++m_numberOfStyles; |
204 } | 218 } |
205 | 219 |
206 void ShadowRoot::unregisterScopedHTMLStyleChild() | 220 void ShadowRoot::unregisterScopedHTMLStyleChild() |
207 { | 221 { |
208 DCHECK_GT(m_numberOfStyles, 0u); | 222 DCHECK_GT(m_numberOfStyles, 0u); |
209 --m_numberOfStyles; | 223 --m_numberOfStyles; |
210 } | 224 } |
211 | 225 |
212 ShadowRootRareData& ShadowRoot::ensureShadowRootRareData() | |
213 { | |
214 if (m_shadowRootRareData) | |
215 return *m_shadowRootRareData; | |
216 | |
217 m_shadowRootRareData = new ShadowRootRareData; | |
218 return *m_shadowRootRareData; | |
219 } | |
220 | |
221 ShadowRootRareDataV0& ShadowRoot::ensureShadowRootRareDataV0() | 226 ShadowRootRareDataV0& ShadowRoot::ensureShadowRootRareDataV0() |
222 { | 227 { |
223 if (m_shadowRootRareDataV0) | 228 if (m_shadowRootRareDataV0) |
224 return *m_shadowRootRareDataV0; | 229 return *m_shadowRootRareDataV0; |
225 | 230 |
226 m_shadowRootRareDataV0 = new ShadowRootRareDataV0; | 231 m_shadowRootRareDataV0 = new ShadowRootRareDataV0; |
227 return *m_shadowRootRareDataV0; | 232 return *m_shadowRootRareDataV0; |
228 } | 233 } |
229 | 234 |
230 bool ShadowRoot::containsShadowElements() const | 235 bool ShadowRoot::containsShadowElements() const |
231 { | 236 { |
232 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->containsShadowElemen ts() : false; | 237 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->containsShadowElemen ts() : false; |
233 } | 238 } |
234 | 239 |
235 bool ShadowRoot::containsContentElements() const | 240 bool ShadowRoot::containsContentElements() const |
236 { | 241 { |
237 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->containsContentEleme nts() : false; | 242 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->containsContentEleme nts() : false; |
238 } | 243 } |
239 | 244 |
240 bool ShadowRoot::containsShadowRoots() const | |
241 { | |
242 return m_shadowRootRareData ? m_shadowRootRareData->containsShadowRoots() : false; | |
243 } | |
244 | |
245 unsigned ShadowRoot::descendantShadowElementCount() const | 245 unsigned ShadowRoot::descendantShadowElementCount() const |
246 { | 246 { |
247 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->descendantShadowElem entCount() : 0; | 247 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->descendantShadowElem entCount() : 0; |
248 } | 248 } |
249 | 249 |
250 HTMLShadowElement* ShadowRoot::shadowInsertionPointOfYoungerShadowRoot() const | 250 HTMLShadowElement* ShadowRoot::shadowInsertionPointOfYoungerShadowRoot() const |
251 { | 251 { |
252 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->shadowInsertionPoint OfYoungerShadowRoot() : nullptr; | 252 return m_shadowRootRareDataV0 ? m_shadowRootRareDataV0->shadowInsertionPoint OfYoungerShadowRoot() : nullptr; |
253 } | 253 } |
254 | 254 |
255 void ShadowRoot::setShadowInsertionPointOfYoungerShadowRoot(HTMLShadowElement* s hadowInsertionPoint) | 255 void ShadowRoot::setShadowInsertionPointOfYoungerShadowRoot(HTMLShadowElement* s hadowInsertionPoint) |
256 { | 256 { |
257 if (!m_shadowRootRareDataV0 && !shadowInsertionPoint) | 257 if (!m_shadowRootRareDataV0 && !shadowInsertionPoint) |
258 return; | 258 return; |
259 ensureShadowRootRareDataV0().setShadowInsertionPointOfYoungerShadowRoot(shad owInsertionPoint); | 259 ensureShadowRootRareDataV0().setShadowInsertionPointOfYoungerShadowRoot(shad owInsertionPoint); |
260 } | 260 } |
261 | 261 |
262 void ShadowRoot::didAddInsertionPoint(InsertionPoint* insertionPoint) | 262 void ShadowRoot::didAddInsertionPoint(InsertionPoint* insertionPoint) |
263 { | 263 { |
264 ensureShadowRootRareDataV0().didAddInsertionPoint(insertionPoint); | 264 ensureShadowRootRareDataV0().didAddInsertionPoint(insertionPoint); |
265 invalidateDescendantInsertionPoints(); | 265 invalidateDescendantInsertionPoints(); |
266 } | 266 } |
267 | 267 |
268 void ShadowRoot::didRemoveInsertionPoint(InsertionPoint* insertionPoint) | 268 void ShadowRoot::didRemoveInsertionPoint(InsertionPoint* insertionPoint) |
269 { | 269 { |
270 m_shadowRootRareDataV0->didRemoveInsertionPoint(insertionPoint); | 270 m_shadowRootRareDataV0->didRemoveInsertionPoint(insertionPoint); |
271 invalidateDescendantInsertionPoints(); | 271 invalidateDescendantInsertionPoints(); |
272 } | 272 } |
273 | 273 |
274 void ShadowRoot::addChildShadowRoot() | |
275 { | |
276 ensureShadowRootRareData().didAddChildShadowRoot(); | |
277 } | |
278 | |
279 void ShadowRoot::removeChildShadowRoot() | |
280 { | |
281 // FIXME: Why isn't this an ASSERT? | |
282 if (!m_shadowRootRareData) | |
283 return; | |
284 m_shadowRootRareData->didRemoveChildShadowRoot(); | |
285 } | |
286 | |
287 unsigned ShadowRoot::childShadowRootCount() const | |
288 { | |
289 return m_shadowRootRareData ? m_shadowRootRareData->childShadowRootCount() : 0; | |
290 } | |
291 | |
292 void ShadowRoot::invalidateDescendantInsertionPoints() | 274 void ShadowRoot::invalidateDescendantInsertionPoints() |
293 { | 275 { |
294 m_descendantInsertionPointsIsValid = false; | 276 m_descendantInsertionPointsIsValid = false; |
295 m_shadowRootRareDataV0->clearDescendantInsertionPoints(); | 277 m_shadowRootRareDataV0->clearDescendantInsertionPoints(); |
296 } | 278 } |
297 | 279 |
298 const HeapVector<Member<InsertionPoint>>& ShadowRoot::descendantInsertionPoints( ) | 280 const HeapVector<Member<InsertionPoint>>& ShadowRoot::descendantInsertionPoints( ) |
299 { | 281 { |
300 DEFINE_STATIC_LOCAL(HeapVector<Member<InsertionPoint>>, emptyList, (new Heap Vector<Member<InsertionPoint>>)); | 282 DEFINE_STATIC_LOCAL(HeapVector<Member<InsertionPoint>>, emptyList, (new Heap Vector<Member<InsertionPoint>>)); |
301 if (m_shadowRootRareDataV0 && m_descendantInsertionPointsIsValid) | 283 if (m_shadowRootRareDataV0 && m_descendantInsertionPointsIsValid) |
302 return m_shadowRootRareDataV0->descendantInsertionPoints(); | 284 return m_shadowRootRareDataV0->descendantInsertionPoints(); |
303 | 285 |
304 m_descendantInsertionPointsIsValid = true; | 286 m_descendantInsertionPointsIsValid = true; |
305 | 287 |
306 if (!containsInsertionPoints()) | 288 if (!containsInsertionPoints()) |
307 return emptyList; | 289 return emptyList; |
308 | 290 |
309 HeapVector<Member<InsertionPoint>> insertionPoints; | 291 HeapVector<Member<InsertionPoint>> insertionPoints; |
310 for (InsertionPoint& insertionPoint : Traversal<InsertionPoint>::descendants Of(*this)) | 292 for (InsertionPoint& insertionPoint : Traversal<InsertionPoint>::descendants Of(*this)) |
311 insertionPoints.append(&insertionPoint); | 293 insertionPoints.append(&insertionPoint); |
312 | 294 |
313 ensureShadowRootRareDataV0().setDescendantInsertionPoints(insertionPoints); | 295 ensureShadowRootRareDataV0().setDescendantInsertionPoints(insertionPoints); |
314 | 296 |
315 return m_shadowRootRareDataV0->descendantInsertionPoints(); | 297 return m_shadowRootRareDataV0->descendantInsertionPoints(); |
316 } | 298 } |
317 | 299 |
318 StyleSheetList* ShadowRoot::styleSheets() | 300 StyleSheetList& ShadowRoot::styleSheets() |
319 { | 301 { |
320 if (!ensureShadowRootRareData().styleSheets()) | 302 if (!m_styleSheetList) |
321 m_shadowRootRareData->setStyleSheets(StyleSheetList::create(this)); | 303 setStyleSheets(StyleSheetList::create(this)); |
322 | 304 return *m_styleSheetList; |
323 return m_shadowRootRareData->styleSheets(); | |
324 } | 305 } |
325 | 306 |
326 void ShadowRoot::didAddSlot() | 307 void ShadowRoot::didAddSlot() |
327 { | 308 { |
328 ensureShadowRootRareData().didAddSlot(); | 309 ensureSlotAssignment().didAddSlot(); |
329 invalidateDescendantSlots(); | 310 invalidateDescendantSlots(); |
330 } | 311 } |
331 | 312 |
332 void ShadowRoot::didRemoveSlot() | 313 void ShadowRoot::didRemoveSlot() |
333 { | 314 { |
334 DCHECK(m_shadowRootRareData); | 315 DCHECK(m_slotAssignment); |
335 m_shadowRootRareData->didRemoveSlot(); | 316 m_slotAssignment->didRemoveSlot(); |
336 invalidateDescendantSlots(); | 317 invalidateDescendantSlots(); |
337 } | 318 } |
338 | 319 |
339 void ShadowRoot::invalidateDescendantSlots() | 320 void ShadowRoot::invalidateDescendantSlots() |
340 { | 321 { |
322 DCHECK(m_slotAssignment); | |
341 m_descendantSlotsIsValid = false; | 323 m_descendantSlotsIsValid = false; |
342 m_shadowRootRareData->clearDescendantSlots(); | 324 m_slotAssignment->clearDescendantSlots(); |
343 } | 325 } |
344 | 326 |
345 unsigned ShadowRoot::descendantSlotCount() const | 327 unsigned ShadowRoot::descendantSlotCount() const |
346 { | 328 { |
347 return m_shadowRootRareData ? m_shadowRootRareData->descendantSlotCount() : 0; | 329 return m_slotAssignment ? m_slotAssignment->descendantSlotCount() : 0; |
348 } | 330 } |
349 | 331 |
350 const HeapVector<Member<HTMLSlotElement>>& ShadowRoot::descendantSlots() | 332 const HeapVector<Member<HTMLSlotElement>>& ShadowRoot::descendantSlots() |
351 { | 333 { |
352 DEFINE_STATIC_LOCAL(HeapVector<Member<HTMLSlotElement>>, emptyList, (new Hea pVector<Member<HTMLSlotElement>>)); | 334 DEFINE_STATIC_LOCAL(HeapVector<Member<HTMLSlotElement>>, emptyList, (new Hea pVector<Member<HTMLSlotElement>>)); |
353 if (m_descendantSlotsIsValid) { | 335 if (m_descendantSlotsIsValid) { |
354 DCHECK(m_shadowRootRareData); | 336 DCHECK(m_slotAssignment); |
355 return m_shadowRootRareData->descendantSlots(); | 337 return m_slotAssignment->descendantSlots(); |
356 } | 338 } |
357 if (descendantSlotCount() == 0) | 339 if (descendantSlotCount() == 0) |
358 return emptyList; | 340 return emptyList; |
359 | 341 |
360 DCHECK(m_shadowRootRareData); | 342 DCHECK(m_slotAssignment); |
361 HeapVector<Member<HTMLSlotElement>> slots; | 343 HeapVector<Member<HTMLSlotElement>> slots; |
362 slots.reserveCapacity(descendantSlotCount()); | 344 slots.reserveCapacity(descendantSlotCount()); |
363 for (HTMLSlotElement& slot : Traversal<HTMLSlotElement>::descendantsOf(rootN ode())) | 345 for (HTMLSlotElement& slot : Traversal<HTMLSlotElement>::descendantsOf(rootN ode())) |
364 slots.append(&slot); | 346 slots.append(&slot); |
365 m_shadowRootRareData->setDescendantSlots(slots); | 347 m_slotAssignment->setDescendantSlots(slots); |
366 m_descendantSlotsIsValid = true; | 348 m_descendantSlotsIsValid = true; |
367 return m_shadowRootRareData->descendantSlots(); | 349 return m_slotAssignment->descendantSlots(); |
368 } | 350 } |
369 | 351 |
370 void ShadowRoot::assignV1() | 352 void ShadowRoot::assignV1() |
371 { | 353 { |
372 if (!m_slotAssignment) | 354 if (!m_slotAssignment) |
373 m_slotAssignment = SlotAssignment::create(); | 355 m_slotAssignment = SlotAssignment::create(); |
374 m_slotAssignment->resolveAssignment(*this); | 356 m_slotAssignment->resolveAssignment(*this); |
375 } | 357 } |
376 | 358 |
377 void ShadowRoot::distributeV1() | 359 void ShadowRoot::distributeV1() |
378 { | 360 { |
379 if (!m_slotAssignment) | 361 if (!m_slotAssignment) |
380 m_slotAssignment = SlotAssignment::create(); | 362 m_slotAssignment = SlotAssignment::create(); |
381 m_slotAssignment->resolveDistribution(*this); | 363 m_slotAssignment->resolveDistribution(*this); |
382 } | 364 } |
383 | 365 |
384 DEFINE_TRACE(ShadowRoot) | 366 DEFINE_TRACE(ShadowRoot) |
385 { | 367 { |
386 visitor->trace(m_shadowRootRareData); | |
387 visitor->trace(m_shadowRootRareDataV0); | 368 visitor->trace(m_shadowRootRareDataV0); |
388 visitor->trace(m_slotAssignment); | 369 visitor->trace(m_slotAssignment); |
370 visitor->trace(m_styleSheetList); | |
389 TreeScope::trace(visitor); | 371 TreeScope::trace(visitor); |
390 DocumentFragment::trace(visitor); | 372 DocumentFragment::trace(visitor); |
391 } | 373 } |
392 | 374 |
393 std::ostream& operator<<(std::ostream& ostream, const ShadowRootType& type) | 375 std::ostream& operator<<(std::ostream& ostream, const ShadowRootType& type) |
394 { | 376 { |
395 switch (type) { | 377 switch (type) { |
396 case ShadowRootType::UserAgent: | 378 case ShadowRootType::UserAgent: |
397 ostream << "ShadowRootType::UserAgent"; | 379 ostream << "ShadowRootType::UserAgent"; |
398 break; | 380 break; |
399 case ShadowRootType::V0: | 381 case ShadowRootType::V0: |
400 ostream << "ShadowRootType::V0"; | 382 ostream << "ShadowRootType::V0"; |
401 break; | 383 break; |
402 case ShadowRootType::Open: | 384 case ShadowRootType::Open: |
403 ostream << "ShadowRootType::Open"; | 385 ostream << "ShadowRootType::Open"; |
404 break; | 386 break; |
405 case ShadowRootType::Closed: | 387 case ShadowRootType::Closed: |
406 ostream << "ShadowRootType::Closed"; | 388 ostream << "ShadowRootType::Closed"; |
407 break; | 389 break; |
408 } | 390 } |
409 return ostream; | 391 return ostream; |
410 } | 392 } |
411 | 393 |
412 } // namespace blink | 394 } // namespace blink |
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