1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2001 Dirk Mueller (mueller@kde.org)
5 * (C) 2006 Alexey Proskuryakov (ap@webkit.org)
6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011 Apple Inc. All rights reserved.
7 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
8 * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
9 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Library General Public License for more details.
20 *
21 * You should have received a copy of the GNU Library General Public License
22 * along with this library; see the file COPYING.LIB. If not, write to
23 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 * Boston, MA 02110-1301, USA.
25 */
26
27 #include "config.h"
28 #include "Document.h"
29
30 #include "AXObjectCache.h"
31 #include "AnimationController.h"
32 #include "Attr.h"
33 #include "Attribute.h"
34 #include "CDATASection.h"
35 #include "CSSPrimitiveValueCache.h"
36 #include "CSSStyleSelector.h"
37 #include "CSSStyleSheet.h"
38 #include "CSSValueKeywords.h"
39 #include "CachedCSSStyleSheet.h"
40 #include "CachedResourceLoader.h"
41 #include "Chrome.h"
42 #include "ChromeClient.h"
43 #include "Comment.h"
44 #include "Console.h"
45 #include "ContentSecurityPolicy.h"
46 #include "CookieJar.h"
47 #include "CustomEvent.h"
48 #include "DateComponents.h"
49 #include "DOMImplementation.h"
50 #include "DOMWindow.h"
51 #include "DeviceMotionEvent.h"
52 #include "DeviceOrientationEvent.h"
53 #include "DocumentFragment.h"
54 #include "DocumentLoader.h"
55 #include "DocumentMarkerController.h"
56 #include "DocumentType.h"
57 #include "EditingText.h"
58 #include "Editor.h"
59 #include "Element.h"
60 #include "EntityReference.h"
61 #include "Event.h"
62 #include "EventHandler.h"
63 #include "EventListener.h"
64 #include "EventNames.h"
65 #include "EventQueue.h"
66 #include "ExceptionCode.h"
67 #include "FocusController.h"
68 #include "FormAssociatedElement.h"
69 #include "Frame.h"
70 #include "FrameLoader.h"
71 #include "FrameLoaderClient.h"
72 #include "FrameTree.h"
73 #include "FrameView.h"
74 #include "HashChangeEvent.h"
75 #include "HTMLAllCollection.h"
76 #include "HTMLAnchorElement.h"
77 #include "HTMLBodyElement.h"
78 #include "HTMLCanvasElement.h"
79 #include "HTMLCollection.h"
80 #include "HTMLDocument.h"
81 #include "HTMLElementFactory.h"
82 #include "HTMLFrameOwnerElement.h"
83 #include "HTMLHeadElement.h"
84 #include "HTMLIFrameElement.h"
85 #include "HTMLInputElement.h"
86 #include "HTMLLinkElement.h"
87 #include "HTMLMapElement.h"
88 #include "HTMLNameCollection.h"
89 #include "HTMLNames.h"
90 #include "HTMLParserIdioms.h"
91 #include "HTMLStyleElement.h"
92 #include "HTMLTitleElement.h"
93 #include "HTTPParsers.h"
94 #include "HitTestRequest.h"
95 #include "HitTestResult.h"
96 #include "ImageLoader.h"
97 #include "InspectorInstrumentation.h"
98 #include "KeyboardEvent.h"
99 #include "Logging.h"
100 #include "MediaQueryList.h"
101 #include "MediaQueryMatcher.h"
102 #include "MessageEvent.h"
103 #include "MouseEvent.h"
104 #include "MouseEventWithHitTestResults.h"
105 #include "MutationEvent.h"
106 #include "NameNodeList.h"
107 #include "NestingLevelIncrementer.h"
108 #include "NodeFilter.h"
109 #include "NodeIterator.h"
110 #include "NodeWithIndex.h"
111 #include "OverflowEvent.h"
112 #include "Page.h"
113 #include "PageGroup.h"
114 #include "PageTransitionEvent.h"
115 #include "PlatformKeyboardEvent.h"
116 #include "PopStateEvent.h"
117 #include "ProcessingInstruction.h"
118 #include "ProgressEvent.h"
119 #include "RegisteredEventListener.h"
120 #include "RenderArena.h"
121 #include "RenderLayer.h"
122 #include "RenderLayerBacking.h"
123 #include "RenderTextControl.h"
124 #include "RenderView.h"
125 #include "RenderWidget.h"
126 #include "ScopedEventQueue.h"
127 #include "ScriptCallStack.h"
128 #include "ScriptController.h"
129 #include "ScriptElement.h"
130 #include "ScriptEventListener.h"
131 #include "ScriptRunner.h"
132 #include "SecurityOrigin.h"
133 #include "SegmentedString.h"
134 #include "SelectionController.h"
135 #include "Settings.h"
136 #include "StaticHashSetNodeList.h"
137 #include "StyleSheetList.h"
138 #include "TextEvent.h"
139 #include "TextResourceDecoder.h"
140 #include "Timer.h"
141 #include "TransformSource.h"
142 #include "TreeWalker.h"
143 #include "UIEvent.h"
144 #include "UserContentURLPattern.h"
145 #include "WebKitAnimationEvent.h"
146 #include "WebKitTransitionEvent.h"
147 #include "WheelEvent.h"
148 #include "XMLDocumentParser.h"
149 #include "XMLHttpRequest.h"
150 #include "XMLNSNames.h"
151 #include "XMLNames.h"
152 #include "htmlediting.h"
153 #include <wtf/CurrentTime.h>
154 #include <wtf/HashFunctions.h>
155 #include <wtf/MainThread.h>
156 #include <wtf/PassRefPtr.h>
157 #include <wtf/StdLibExtras.h>
158 #include <wtf/text/StringBuffer.h>
159
160 #if ENABLE(SHARED_WORKERS)
161 #include "SharedWorkerRepository.h"
162 #endif
163
164 #if ENABLE(DOM_STORAGE)
165 #include "StorageEvent.h"
166 #endif
167
168 #if ENABLE(XPATH)
169 #include "XPathEvaluator.h"
170 #include "XPathExpression.h"
171 #include "XPathNSResolver.h"
172 #include "XPathResult.h"
173 #endif
174
175 #if ENABLE(XSLT)
176 #include "XSLTProcessor.h"
177 #endif
178
179 #if ENABLE(SVG)
180 #include "SVGDocumentExtensions.h"
181 #include "SVGElementFactory.h"
182 #include "SVGNames.h"
183 #include "SVGStyleElement.h"
184 #include "SVGZoomEvent.h"
185 #endif
186
187 #ifdef ANDROID_META_SUPPORT
188 #include "PlatformBridge.h"
189 #include "Settings.h"
190 #endif
191
192 #ifdef ANDROID_RESET_SELECTION
193 #include "CacheBuilder.h"
194 #include "HTMLTextAreaElement.h"
195 #endif
196
197 #ifdef ANDROID_INSTRUMENT
198 #include "TimeCounter.h"
199 #endif
200
201 #if ENABLE(TOUCH_EVENTS)
202 #if USE(V8)
203 #include "RuntimeEnabledFeatures.h"
204 #endif
205 #include "TouchEvent.h"
206 #endif
207
208 #if ENABLE(WML)
209 #include "WMLDocument.h"
210 #include "WMLElement.h"
211 #include "WMLElementFactory.h"
212 #include "WMLNames.h"
213 #endif
214
215 #if ENABLE(MATHML)
216 #include "MathMLElement.h"
217 #include "MathMLElementFactory.h"
218 #include "MathMLNames.h"
219 #endif
220
221 #if ENABLE(XHTMLMP)
222 #include "HTMLNoScriptElement.h"
223 #endif
224
225 #if ENABLE(FULLSCREEN_API)
226 #include "RenderFullScreen.h"
227 #endif
228
229 #if ENABLE(REQUEST_ANIMATION_FRAME)
230 #include "RequestAnimationFrameCallback.h"
231 #include "ScriptedAnimationController.h"
232 #endif
233
234 using namespace std;
235 using namespace WTF;
236 using namespace Unicode;
237
238 namespace WebCore {
239
240 using namespace HTMLNames;
241
242 // #define INSTRUMENT_LAYOUT_SCHEDULING 1
243
244 static const unsigned cMaxWriteRecursionDepth = 21;
245
246 // This amount of time must have elapsed before we will even consider scheduling a layout without a delay.
247 // FIXME: For faster machines this value can really be lowered to 200. 250 is adequate, but a little high
248 // for dual G5s. :)
249 static const int cLayoutScheduleThreshold = 250;
250
251 // DOM Level 2 says (letters added):
252 //
253 // a) Name start characters must have one of the categories Ll, Lu, Lo, Lt, Nl.
254 // b) Name characters other than Name-start characters must have one of the categories Mc, Me, Mn, Lm, or Nd.
255 // c) Characters in the compatibility area (i.e. with character code greater than #xF900 and less than #xFFFE) are not allowed in XML names.
256 // d) Characters which have a font or compatibility decomposition (i.e. those with a "compatibility formatting tag" in field 5 of the database -- marked by field 5 beginning with a "<") are not allowed.
257 // e) The following characters are treated as name-start characters rather than name characters, because the property file classifies them as Alphabetic: [#x02BB-#x02C1], #x0559, #x06E5, #x06E6.
258 // f) Characters #x20DD-#x20E0 are excluded (in accordance with Unicode, section 5.14).
259 // g) Character #x00B7 is classified as an extender, because the property list so identifies it.
260 // h) Character #x0387 is added as a name character, because #x00B7 is its canonical equivalent.
261 // i) Characters ':' and '_' are allowed as name-start characters.
262 // j) Characters '-' and '.' are allowed as name characters.
263 //
264 // It also contains complete tables. If we decide it's better, we could include those instead of the following code.
265
isValidNameStart(UChar32 c)266 static inline bool isValidNameStart(UChar32 c)
267 {
268 // rule (e) above
269 if ((c >= 0x02BB && c <= 0x02C1) || c == 0x559 || c == 0x6E5 || c == 0x6E6)
270 return true;
271
272 // rule (i) above
273 if (c == ':' || c == '_')
274 return true;
275
276 // rules (a) and (f) above
277 const uint32_t nameStartMask = Letter_Lowercase | Letter_Uppercase | Letter_Other | Letter_Titlecase | Number_Letter;
278 if (!(Unicode::category(c) & nameStartMask))
279 return false;
280
281 // rule (c) above
282 if (c >= 0xF900 && c < 0xFFFE)
283 return false;
284
285 // rule (d) above
286 DecompositionType decompType = decompositionType(c);
287 if (decompType == DecompositionFont || decompType == DecompositionCompat)
288 return false;
289
290 return true;
291 }
292
isValidNamePart(UChar32 c)293 static inline bool isValidNamePart(UChar32 c)
294 {
295 // rules (a), (e), and (i) above
296 if (isValidNameStart(c))
297 return true;
298
299 // rules (g) and (h) above
300 if (c == 0x00B7 || c == 0x0387)
301 return true;
302
303 // rule (j) above
304 if (c == '-' || c == '.')
305 return true;
306
307 // rules (b) and (f) above
308 const uint32_t otherNamePartMask = Mark_NonSpacing | Mark_Enclosing | Mark_SpacingCombining | Letter_Modifier | Number_DecimalDigit;
309 if (!(Unicode::category(c) & otherNamePartMask))
310 return false;
311
312 // rule (c) above
313 if (c >= 0xF900 && c < 0xFFFE)
314 return false;
315
316 // rule (d) above
317 DecompositionType decompType = decompositionType(c);
318 if (decompType == DecompositionFont || decompType == DecompositionCompat)
319 return false;
320
321 return true;
322 }
323
widgetForNode(Node * focusedNode)324 static Widget* widgetForNode(Node* focusedNode)
325 {
326 if (!focusedNode)
327 return 0;
328 RenderObject* renderer = focusedNode->renderer();
329 if (!renderer || !renderer->isWidget())
330 return 0;
331 return toRenderWidget(renderer)->widget();
332 }
333
acceptsEditingFocus(Node * node)334 static bool acceptsEditingFocus(Node* node)
335 {
336 ASSERT(node);
337 ASSERT(node->rendererIsEditable());
338
339 Node* root = node->rootEditableElement();
340 Frame* frame = node->document()->frame();
341 if (!frame || !root)
342 return false;
343
344 return frame->editor()->shouldBeginEditing(rangeOfContents(root).get());
345 }
346
disableRangeMutation(Page * page)347 static bool disableRangeMutation(Page* page)
348 {
349 // This check is made on super-hot code paths, so we only want this on Tiger and Leopard.
350 #if defined(TARGETING_TIGER) || defined(TARGETING_LEOPARD)
351 // Disable Range mutation on document modifications in Tiger and Leopard Mail
352 // See <rdar://problem/5865171>
353 return page && (page->settings()->needsLeopardMailQuirks() || page->settings()->needsTigerMailQuirks());
354 #else
355 UNUSED_PARAM(page);
356 return false;
357 #endif
358 }
359
360 static HashSet<Document*>* documentsThatNeedStyleRecalc = 0;
361
362 class DocumentWeakReference : public ThreadSafeRefCounted<DocumentWeakReference> {
363 public:
create(Document * document)364 static PassRefPtr<DocumentWeakReference> create(Document* document)
365 {
366 return adoptRef(new DocumentWeakReference(document));
367 }
368
document()369 Document* document()
370 {
371 ASSERT(isMainThread());
372 return m_document;
373 }
374
clear()375 void clear()
376 {
377 ASSERT(isMainThread());
378 m_document = 0;
379 }
380
381 private:
DocumentWeakReference(Document * document)382 DocumentWeakReference(Document* document)
383 : m_document(document)
384 {
385 ASSERT(isMainThread());
386 }
387
388 Document* m_document;
389 };
390
391 uint64_t Document::s_globalTreeVersion = 0;
392
Document(Frame * frame,const KURL & url,bool isXHTML,bool isHTML)393 Document::Document(Frame* frame, const KURL& url, bool isXHTML, bool isHTML)
394 : TreeScope(this)
395 , m_guardRefCount(0)
396 , m_compatibilityMode(NoQuirksMode)
397 , m_compatibilityModeLocked(false)
398 , m_domTreeVersion(++s_globalTreeVersion)
399 #ifdef ANDROID_STYLE_VERSION
400 , m_styleVersion(0)
401 #endif
402 , m_styleSheets(StyleSheetList::create(this))
403 , m_readyState(Complete)
404 , m_styleRecalcTimer(this, &Document::styleRecalcTimerFired)
405 , m_pendingStyleRecalcShouldForce(false)
406 , m_frameElementsShouldIgnoreScrolling(false)
407 , m_containsValidityStyleRules(false)
408 , m_updateFocusAppearanceRestoresSelection(false)
409 , m_ignoreDestructiveWriteCount(0)
410 , m_titleSetExplicitly(false)
411 , m_updateFocusAppearanceTimer(this, &Document::updateFocusAppearanceTimerFired)
412 , m_startTime(currentTime())
413 , m_overMinimumLayoutThreshold(false)
414 , m_extraLayoutDelay(0)
415 , m_scriptRunner(ScriptRunner::create(this))
416 , m_xmlVersion("1.0")
417 , m_xmlStandalone(false)
418 , m_savedRenderer(0)
419 , m_designMode(inherit)
420 #if ENABLE(SVG)
421 , m_svgExtensions(0)
422 #endif
423 #if ENABLE(DASHBOARD_SUPPORT)
424 , m_hasDashboardRegions(false)
425 , m_dashboardRegionsDirty(false)
426 #endif
427 , m_createRenderers(true)
428 , m_inPageCache(false)
429 , m_useSecureKeyboardEntryWhenActive(false)
430 , m_isXHTML(isXHTML)
431 , m_isHTML(isHTML)
432 , m_usesViewSourceStyles(false)
433 , m_sawElementsInKnownNamespaces(false)
434 , m_usingGeolocation(false)
435 , m_eventQueue(EventQueue::create(this))
436 #if ENABLE(WML)
437 , m_containsWMLContent(false)
438 #endif
439 , m_weakReference(DocumentWeakReference::create(this))
440 , m_idAttributeName(idAttr)
441 #if ENABLE(FULLSCREEN_API)
442 , m_areKeysEnabledInFullScreen(0)
443 , m_fullScreenRenderer(0)
444 , m_fullScreenChangeDelayTimer(this, &Document::fullScreenChangeDelayTimerFired)
445 #endif
446 , m_loadEventDelayCount(0)
447 , m_loadEventDelayTimer(this, &Document::loadEventDelayTimerFired)
448 , m_directionSetOnDocumentElement(false)
449 , m_writingModeSetOnDocumentElement(false)
450 , m_writeRecursionIsTooDeep(false)
451 , m_writeRecursionDepth(0)
452 {
453 m_document = this;
454
455 m_pageGroupUserSheetCacheValid = false;
456
457 m_printing = false;
458 m_paginatedForScreen = false;
459
460 m_ignoreAutofocus = false;
461
462 m_frame = frame;
463
464 // We depend on the url getting immediately set in subframes, but we
465 // also depend on the url NOT getting immediately set in opened windows.
466 // See fast/dom/early-frame-url.html
467 // and fast/dom/location-new-window-no-crash.html, respectively.
468 // FIXME: Can/should we unify this behavior?
469 if ((frame && frame->ownerElement()) || !url.isEmpty())
470 setURL(url);
471
472 #if !PLATFORM(ANDROID)
473 m_axObjectCache = 0;
474 #endif
475
476 m_markers = new DocumentMarkerController();
477
478 m_cachedResourceLoader = new CachedResourceLoader(this);
479
480 m_visuallyOrdered = false;
481 m_bParsing = false;
482 m_wellFormed = false;
483
484 m_textColor = Color::black;
485 m_listenerTypes = 0;
486 setInDocument();
487 m_inStyleRecalc = false;
488 m_closeAfterStyleRecalc = false;
489
490 m_usesSiblingRules = false;
491 m_usesSiblingRulesOverride = false;
492 m_usesFirstLineRules = false;
493 m_usesFirstLetterRules = false;
494 m_usesBeforeAfterRules = false;
495 m_usesBeforeAfterRulesOverride = false;
496 m_usesRemUnits = false;
497 m_usesLinkRules = false;
498
499 m_gotoAnchorNeededAfterStylesheetsLoad = false;
500
501 m_didCalculateStyleSelector = false;
502 m_hasDirtyStyleSelector = false;
503 m_pendingStylesheets = 0;
504 m_ignorePendingStylesheets = false;
505 m_hasNodesWithPlaceholderStyle = false;
506 m_pendingSheetLayout = NoLayoutWithPendingSheets;
507
508 m_cssTarget = 0;
509
510 resetLinkColor();
511 resetVisitedLinkColor();
512 resetActiveLinkColor();
513
514 m_processingLoadEvent = false;
515
516 initSecurityContext();
517 initDNSPrefetch();
518
519 static int docID = 0;
520 m_docID = docID++;
521 #if ENABLE(XHTMLMP)
522 m_shouldProcessNoScriptElement = !(m_frame && m_frame->script()->canExecuteScripts(NotAboutToExecuteScript));
523 #endif
524 }
525
~Document()526 Document::~Document()
527 {
528 ASSERT(!renderer());
529 ASSERT(!m_inPageCache);
530 ASSERT(!m_savedRenderer);
531 ASSERT(m_ranges.isEmpty());
532 ASSERT(!m_styleRecalcTimer.isActive());
533 ASSERT(!m_parentTreeScope);
534
535 m_scriptRunner.clear();
536
537 removeAllEventListeners();
538
539 // Currently we believe that Document can never outlive the parser.
540 // Although the Document may be replaced synchronously, DocumentParsers
541 // generally keep at least one reference to an Element which would in turn
542 // has a reference to the Document. If you hit this ASSERT, then that
543 // assumption is wrong. DocumentParser::detach() should ensure that even
544 // if the DocumentParser outlives the Document it won't cause badness.
545 ASSERT(!m_parser || m_parser->refCount() == 1);
546 detachParser();
547 m_document = 0;
548 m_cachedResourceLoader.clear();
549
550 m_renderArena.clear();
551
552 clearAXObjectCache();
553
554 m_decoder = 0;
555
556 for (size_t i = 0; i < m_nameCollectionInfo.size(); ++i)
557 deleteAllValues(m_nameCollectionInfo[i]);
558
559 if (m_styleSheets)
560 m_styleSheets->documentDestroyed();
561
562 if (m_elemSheet)
563 m_elemSheet->clearOwnerNode();
564 if (m_mappedElementSheet)
565 m_mappedElementSheet->clearOwnerNode();
566 if (m_pageUserSheet)
567 m_pageUserSheet->clearOwnerNode();
568 if (m_pageGroupUserSheets) {
569 for (size_t i = 0; i < m_pageGroupUserSheets->size(); ++i)
570 (*m_pageGroupUserSheets)[i]->clearOwnerNode();
571 }
572
573 m_weakReference->clear();
574
575 if (m_mediaQueryMatcher)
576 m_mediaQueryMatcher->documentDestroyed();
577
578 if (m_implementation)
579 m_implementation->ownerDocumentDestroyed();
580 }
581
removedLastRef()582 void Document::removedLastRef()
583 {
584 ASSERT(!m_deletionHasBegun);
585 if (m_guardRefCount) {
586 // If removing a child removes the last self-only ref, we don't
587 // want the scope to be destructed until after
588 // removeAllChildren returns, so we guard ourselves with an
589 // extra self-only ref.
590 guardRef();
591
592 // We must make sure not to be retaining any of our children through
593 // these extra pointers or we will create a reference cycle.
594 m_docType = 0;
595 m_focusedNode = 0;
596 m_hoverNode = 0;
597 m_activeNode = 0;
598 m_titleElement = 0;
599 m_documentElement = 0;
600 #if ENABLE(FULLSCREEN_API)
601 m_fullScreenElement = 0;
602 #endif
603
604 // removeAllChildren() doesn't always unregister IDs,
605 // so tear down scope information upfront to avoid having stale references in the map.
606 destroyTreeScopeData();
607 removeAllChildren();
608
609 m_markers->detach();
610
611 detachParser();
612
613 m_cssCanvasElements.clear();
614
615 #if ENABLE(REQUEST_ANIMATION_FRAME)
616 // FIXME: consider using ActiveDOMObject.
617 m_scriptedAnimationController = 0;
618 #endif
619
620 #ifndef NDEBUG
621 m_inRemovedLastRefFunction = false;
622 #endif
623
624 guardDeref();
625 } else {
626 #ifndef NDEBUG
627 m_deletionHasBegun = true;
628 #endif
629 delete this;
630 }
631 }
632
getElementById(const AtomicString & id) const633 Element* Document::getElementById(const AtomicString& id) const
634 {
635 return TreeScope::getElementById(id);
636 }
637
mediaQueryMatcher()638 MediaQueryMatcher* Document::mediaQueryMatcher()
639 {
640 if (!m_mediaQueryMatcher)
641 m_mediaQueryMatcher = MediaQueryMatcher::create(this);
642 return m_mediaQueryMatcher.get();
643 }
644
setCompatibilityMode(CompatibilityMode mode)645 void Document::setCompatibilityMode(CompatibilityMode mode)
646 {
647 if (m_compatibilityModeLocked || mode == m_compatibilityMode)
648 return;
649 ASSERT(!documentElement() && !m_styleSheets->length());
650 bool wasInQuirksMode = inQuirksMode();
651 m_compatibilityMode = mode;
652 if (inQuirksMode() != wasInQuirksMode) {
653 // All user stylesheets have to reparse using the different mode.
654 clearPageUserSheet();
655 clearPageGroupUserSheets();
656 }
657 }
658
compatMode() const659 String Document::compatMode() const
660 {
661 return inQuirksMode() ? "BackCompat" : "CSS1Compat";
662 }
663
resetLinkColor()664 void Document::resetLinkColor()
665 {
666 m_linkColor = Color(0, 0, 238);
667 }
668
resetVisitedLinkColor()669 void Document::resetVisitedLinkColor()
670 {
671 m_visitedLinkColor = Color(85, 26, 139);
672 }
673
resetActiveLinkColor()674 void Document::resetActiveLinkColor()
675 {
676 m_activeLinkColor.setNamedColor("red");
677 }
678
setDocType(PassRefPtr<DocumentType> docType)679 void Document::setDocType(PassRefPtr<DocumentType> docType)
680 {
681 // This should never be called more than once.
682 ASSERT(!m_docType || !docType);
683 m_docType = docType;
684 if (m_docType)
685 m_docType->setTreeScope(this);
686
687 #ifdef ANDROID_META_SUPPORT
688 if (m_docType && !ownerElement()
689 && m_docType->publicId().startsWith("-//wapforum//dtd xhtml mobile 1.", false)) {
690 // fit mobile sites directly in the screen
691 processViewport("width=device-width");
692 }
693 #endif
694 }
695
implementation()696 DOMImplementation* Document::implementation()
697 {
698 if (!m_implementation)
699 m_implementation = DOMImplementation::create(this);
700 return m_implementation.get();
701 }
702
childrenChanged(bool changedByParser,Node * beforeChange,Node * afterChange,int childCountDelta)703 void Document::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
704 {
705 TreeScope::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
706
707 // Invalidate the document element we have cached in case it was replaced.
708 m_documentElement = 0;
709 }
710
cacheDocumentElement() const711 void Document::cacheDocumentElement() const
712 {
713 ASSERT(!m_documentElement);
714 m_documentElement = firstElementChild(this);
715 }
716
createElement(const AtomicString & name,ExceptionCode & ec)717 PassRefPtr<Element> Document::createElement(const AtomicString& name, ExceptionCode& ec)
718 {
719 if (!isValidName(name)) {
720 ec = INVALID_CHARACTER_ERR;
721 return 0;
722 }
723
724 if (m_isXHTML)
725 return HTMLElementFactory::createHTMLElement(QualifiedName(nullAtom, name, xhtmlNamespaceURI), this, 0, false);
726
727 return createElement(QualifiedName(nullAtom, name, nullAtom), false);
728 }
729
createDocumentFragment()730 PassRefPtr<DocumentFragment> Document::createDocumentFragment()
731 {
732 return DocumentFragment::create(document());
733 }
734
createTextNode(const String & data)735 PassRefPtr<Text> Document::createTextNode(const String& data)
736 {
737 return Text::create(this, data);
738 }
739
createComment(const String & data)740 PassRefPtr<Comment> Document::createComment(const String& data)
741 {
742 return Comment::create(this, data);
743 }
744
createCDATASection(const String & data,ExceptionCode & ec)745 PassRefPtr<CDATASection> Document::createCDATASection(const String& data, ExceptionCode& ec)
746 {
747 if (isHTMLDocument()) {
748 ec = NOT_SUPPORTED_ERR;
749 return 0;
750 }
751 return CDATASection::create(this, data);
752 }
753
createProcessingInstruction(const String & target,const String & data,ExceptionCode & ec)754 PassRefPtr<ProcessingInstruction> Document::createProcessingInstruction(const String& target, const String& data, ExceptionCode& ec)
755 {
756 if (!isValidName(target)) {
757 ec = INVALID_CHARACTER_ERR;
758 return 0;
759 }
760 if (isHTMLDocument()) {
761 ec = NOT_SUPPORTED_ERR;
762 return 0;
763 }
764 return ProcessingInstruction::create(this, target, data);
765 }
766
createEntityReference(const String & name,ExceptionCode & ec)767 PassRefPtr<EntityReference> Document::createEntityReference(const String& name, ExceptionCode& ec)
768 {
769 if (!isValidName(name)) {
770 ec = INVALID_CHARACTER_ERR;
771 return 0;
772 }
773 if (isHTMLDocument()) {
774 ec = NOT_SUPPORTED_ERR;
775 return 0;
776 }
777 return EntityReference::create(this, name);
778 }
779
createEditingTextNode(const String & text)780 PassRefPtr<EditingText> Document::createEditingTextNode(const String& text)
781 {
782 return EditingText::create(this, text);
783 }
784
createCSSStyleDeclaration()785 PassRefPtr<CSSStyleDeclaration> Document::createCSSStyleDeclaration()
786 {
787 return CSSMutableStyleDeclaration::create();
788 }
789
importNode(Node * importedNode,bool deep,ExceptionCode & ec)790 PassRefPtr<Node> Document::importNode(Node* importedNode, bool deep, ExceptionCode& ec)
791 {
792 ec = 0;
793
794 if (!importedNode
795 #if ENABLE(SVG) && ENABLE(DASHBOARD_SUPPORT)
796 || (importedNode->isSVGElement() && page() && page()->settings()->usesDashboardBackwardCompatibilityMode())
797 #endif
798 ) {
799 ec = NOT_SUPPORTED_ERR;
800 return 0;
801 }
802
803 switch (importedNode->nodeType()) {
804 case TEXT_NODE:
805 return createTextNode(importedNode->nodeValue());
806 case CDATA_SECTION_NODE:
807 return createCDATASection(importedNode->nodeValue(), ec);
808 case ENTITY_REFERENCE_NODE:
809 return createEntityReference(importedNode->nodeName(), ec);
810 case PROCESSING_INSTRUCTION_NODE:
811 return createProcessingInstruction(importedNode->nodeName(), importedNode->nodeValue(), ec);
812 case COMMENT_NODE:
813 return createComment(importedNode->nodeValue());
814 case ELEMENT_NODE: {
815 Element* oldElement = static_cast<Element*>(importedNode);
816 RefPtr<Element> newElement = createElementNS(oldElement->namespaceURI(), oldElement->tagQName().toString(), ec);
817
818 if (ec)
819 return 0;
820
821 NamedNodeMap* attrs = oldElement->attributes(true);
822 if (attrs) {
823 unsigned length = attrs->length();
824 for (unsigned i = 0; i < length; i++) {
825 Attribute* attr = attrs->attributeItem(i);
826 newElement->setAttribute(attr->name(), attr->value().impl(), ec);
827 if (ec)
828 return 0;
829 }
830 }
831
832 newElement->copyNonAttributeProperties(oldElement);
833
834 if (deep) {
835 for (Node* oldChild = oldElement->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
836 RefPtr<Node> newChild = importNode(oldChild, true, ec);
837 if (ec)
838 return 0;
839 newElement->appendChild(newChild.release(), ec);
840 if (ec)
841 return 0;
842 }
843 }
844
845 return newElement.release();
846 }
847 case ATTRIBUTE_NODE:
848 return Attr::create(0, this, static_cast<Attr*>(importedNode)->attr()->clone());
849 case DOCUMENT_FRAGMENT_NODE: {
850 DocumentFragment* oldFragment = static_cast<DocumentFragment*>(importedNode);
851 RefPtr<DocumentFragment> newFragment = createDocumentFragment();
852 if (deep) {
853 for (Node* oldChild = oldFragment->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
854 RefPtr<Node> newChild = importNode(oldChild, true, ec);
855 if (ec)
856 return 0;
857 newFragment->appendChild(newChild.release(), ec);
858 if (ec)
859 return 0;
860 }
861 }
862
863 return newFragment.release();
864 }
865 case ENTITY_NODE:
866 case NOTATION_NODE:
867 // FIXME: It should be possible to import these node types, however in DOM3 the DocumentType is readonly, so there isn't much sense in doing that.
868 // Ability to add these imported nodes to a DocumentType will be considered for addition to a future release of the DOM.
869 case DOCUMENT_NODE:
870 case DOCUMENT_TYPE_NODE:
871 case XPATH_NAMESPACE_NODE:
872 break;
873 }
874
875 ec = NOT_SUPPORTED_ERR;
876 return 0;
877 }
878
879
adoptNode(PassRefPtr<Node> source,ExceptionCode & ec)880 PassRefPtr<Node> Document::adoptNode(PassRefPtr<Node> source, ExceptionCode& ec)
881 {
882 if (!source) {
883 ec = NOT_SUPPORTED_ERR;
884 return 0;
885 }
886
887 if (source->isReadOnlyNode()) {
888 ec = NO_MODIFICATION_ALLOWED_ERR;
889 return 0;
890 }
891
892 EventQueueScope scope;
893
894 switch (source->nodeType()) {
895 case ENTITY_NODE:
896 case NOTATION_NODE:
897 case DOCUMENT_NODE:
898 case DOCUMENT_TYPE_NODE:
899 case XPATH_NAMESPACE_NODE:
900 ec = NOT_SUPPORTED_ERR;
901 return 0;
902 case ATTRIBUTE_NODE: {
903 Attr* attr = static_cast<Attr*>(source.get());
904 if (attr->ownerElement())
905 attr->ownerElement()->removeAttributeNode(attr, ec);
906 attr->setSpecified(true);
907 break;
908 }
909 default:
910 if (source->hasTagName(iframeTag)) {
911 HTMLIFrameElement* iframe = static_cast<HTMLIFrameElement*>(source.get());
912 if (frame() && frame()->tree()->isDescendantOf(iframe->contentFrame())) {
913 ec = HIERARCHY_REQUEST_ERR;
914 return 0;
915 }
916 iframe->setRemainsAliveOnRemovalFromTree(attached() && source->attached());
917 }
918
919 if (source->parentNode())
920 source->parentNode()->removeChild(source.get(), ec);
921 }
922
923 source->setTreeScopeRecursively(this);
924
925 return source;
926 }
927
hasPrefixNamespaceMismatch(const QualifiedName & qName)928 bool Document::hasPrefixNamespaceMismatch(const QualifiedName& qName)
929 {
930 // These checks are from DOM Core Level 2, createElementNS
931 // http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrElNS
932 if (!qName.prefix().isEmpty() && qName.namespaceURI().isNull()) // createElementNS(null, "html:div")
933 return true;
934 if (qName.prefix() == xmlAtom && qName.namespaceURI() != XMLNames::xmlNamespaceURI) // createElementNS("http://www.example.com", "xml:lang")
935 return true;
936
937 // Required by DOM Level 3 Core and unspecified by DOM Level 2 Core:
938 // http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#ID-DocCrElNS
939 // createElementNS("http://www.w3.org/2000/xmlns/", "foo:bar"), createElementNS(null, "xmlns:bar")
940 if ((qName.prefix() == xmlnsAtom && qName.namespaceURI() != XMLNSNames::xmlnsNamespaceURI) || (qName.prefix() != xmlnsAtom && qName.namespaceURI() == XMLNSNames::xmlnsNamespaceURI))
941 return true;
942
943 return false;
944 }
945
946 // FIXME: This should really be in a possible ElementFactory class
createElement(const QualifiedName & qName,bool createdByParser)947 PassRefPtr<Element> Document::createElement(const QualifiedName& qName, bool createdByParser)
948 {
949 RefPtr<Element> e;
950
951 // FIXME: Use registered namespaces and look up in a hash to find the right factory.
952 if (qName.namespaceURI() == xhtmlNamespaceURI)
953 e = HTMLElementFactory::createHTMLElement(qName, this, 0, createdByParser);
954 #if ENABLE(SVG)
955 else if (qName.namespaceURI() == SVGNames::svgNamespaceURI)
956 e = SVGElementFactory::createSVGElement(qName, this, createdByParser);
957 #endif
958 #if ENABLE(WML)
959 else if (qName.namespaceURI() == WMLNames::wmlNamespaceURI)
960 e = WMLElementFactory::createWMLElement(qName, this, createdByParser);
961 else if (isWMLDocument())
962 e = WMLElementFactory::createWMLElement(QualifiedName(nullAtom, qName.localName(), WMLNames::wmlNamespaceURI), this, createdByParser);
963 #endif
964 #if ENABLE(MATHML)
965 else if (qName.namespaceURI() == MathMLNames::mathmlNamespaceURI)
966 e = MathMLElementFactory::createMathMLElement(qName, this, createdByParser);
967 #endif
968
969 if (e)
970 m_sawElementsInKnownNamespaces = true;
971 else
972 e = Element::create(qName, document());
973
974 // <image> uses imgTag so we need a special rule.
975 #if ENABLE(WML)
976 if (!isWMLDocument())
977 #endif
978 ASSERT((qName.matches(imageTag) && e->tagQName().matches(imgTag) && e->tagQName().prefix() == qName.prefix()) || qName == e->tagQName());
979
980 return e.release();
981 }
982
createElementNS(const String & namespaceURI,const String & qualifiedName,ExceptionCode & ec)983 PassRefPtr<Element> Document::createElementNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode& ec)
984 {
985 String prefix, localName;
986 if (!parseQualifiedName(qualifiedName, prefix, localName, ec))
987 return 0;
988
989 QualifiedName qName(prefix, localName, namespaceURI);
990 if (hasPrefixNamespaceMismatch(qName)) {
991 ec = NAMESPACE_ERR;
992 return 0;
993 }
994
995 return createElement(qName, false);
996 }
997
readyState() const998 String Document::readyState() const
999 {
1000 DEFINE_STATIC_LOCAL(const String, loading, ("loading"));
1001 DEFINE_STATIC_LOCAL(const String, interactive, ("interactive"));
1002 DEFINE_STATIC_LOCAL(const String, complete, ("complete"));
1003
1004 switch (m_readyState) {
1005 case Loading:
1006 return loading;
1007 case Interactive:
1008 return interactive;
1009 case Complete:
1010 return complete;
1011 }
1012
1013 ASSERT_NOT_REACHED();
1014 return String();
1015 }
1016
setReadyState(ReadyState readyState)1017 void Document::setReadyState(ReadyState readyState)
1018 {
1019 if (readyState == m_readyState)
1020 return;
1021
1022 switch (readyState) {
1023 case Loading:
1024 if (!m_documentTiming.domLoading)
1025 m_documentTiming.domLoading = currentTime();
1026 break;
1027 case Interactive:
1028 if (!m_documentTiming.domInteractive)
1029 m_documentTiming.domInteractive = currentTime();
1030 break;
1031 case Complete:
1032 if (!m_documentTiming.domComplete)
1033 m_documentTiming.domComplete = currentTime();
1034 break;
1035 }
1036
1037 m_readyState = readyState;
1038 dispatchEvent(Event::create(eventNames().readystatechangeEvent, false, false));
1039 }
1040
encoding() const1041 String Document::encoding() const
1042 {
1043 if (TextResourceDecoder* d = decoder())
1044 return d->encoding().domName();
1045 return String();
1046 }
1047
defaultCharset() const1048 String Document::defaultCharset() const
1049 {
1050 if (Settings* settings = this->settings())
1051 return settings->defaultTextEncodingName();
1052 return String();
1053 }
1054
setCharset(const String & charset)1055 void Document::setCharset(const String& charset)
1056 {
1057 if (!decoder())
1058 return;
1059 decoder()->setEncoding(charset, TextResourceDecoder::UserChosenEncoding);
1060 }
1061
setXMLVersion(const String & version,ExceptionCode & ec)1062 void Document::setXMLVersion(const String& version, ExceptionCode& ec)
1063 {
1064 if (!implementation()->hasFeature("XML", String())) {
1065 ec = NOT_SUPPORTED_ERR;
1066 return;
1067 }
1068
1069 if (!XMLDocumentParser::supportsXMLVersion(version)) {
1070 ec = NOT_SUPPORTED_ERR;
1071 return;
1072 }
1073
1074 m_xmlVersion = version;
1075 }
1076
setXMLStandalone(bool standalone,ExceptionCode & ec)1077 void Document::setXMLStandalone(bool standalone, ExceptionCode& ec)
1078 {
1079 if (!implementation()->hasFeature("XML", String())) {
1080 ec = NOT_SUPPORTED_ERR;
1081 return;
1082 }
1083
1084 m_xmlStandalone = standalone;
1085 }
1086
setDocumentURI(const String & uri)1087 void Document::setDocumentURI(const String& uri)
1088 {
1089 m_documentURI = uri;
1090 updateBaseURL();
1091 }
1092
baseURI() const1093 KURL Document::baseURI() const
1094 {
1095 return m_baseURL;
1096 }
1097
setContent(const String & content)1098 void Document::setContent(const String& content)
1099 {
1100 open();
1101 m_parser->append(content);
1102 close();
1103 }
1104
1105 // FIXME: We need to discuss the DOM API here at some point. Ideas:
1106 // * making it receive a rect as parameter, i.e. nodesFromRect(x, y, w, h);
1107 // * making it receive the expading size of each direction separately,
1108 // i.e. nodesFromRect(x, y, topSize, rightSize, bottomSize, leftSize);
nodesFromRect(int centerX,int centerY,unsigned topPadding,unsigned rightPadding,unsigned bottomPadding,unsigned leftPadding,bool ignoreClipping) const1109 PassRefPtr<NodeList> Document::nodesFromRect(int centerX, int centerY, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding, bool ignoreClipping) const
1110 {
1111 // FIXME: Share code between this, elementFromPoint and caretRangeFromPoint.
1112 if (!renderer())
1113 return 0;
1114 Frame* frame = this->frame();
1115 if (!frame)
1116 return 0;
1117 FrameView* frameView = frame->view();
1118 if (!frameView)
1119 return 0;
1120
1121 float zoomFactor = frame->pageZoomFactor();
1122 IntPoint point = roundedIntPoint(FloatPoint(centerX * zoomFactor + view()->scrollX(), centerY * zoomFactor + view()->scrollY()));
1123
1124 int type = HitTestRequest::ReadOnly | HitTestRequest::Active;
1125
1126 // When ignoreClipping is false, this method returns null for coordinates outside of the viewport.
1127 if (ignoreClipping)
1128 type |= HitTestRequest::IgnoreClipping;
1129 else if (!frameView->visibleContentRect().intersects(HitTestResult::rectForPoint(point, topPadding, rightPadding, bottomPadding, leftPadding)))
1130 return 0;
1131
1132 HitTestRequest request(type);
1133
1134 // Passing a zero padding will trigger a rect hit test, however for the purposes of nodesFromRect,
1135 // we special handle this case in order to return a valid NodeList.
1136 if (!topPadding && !rightPadding && !bottomPadding && !leftPadding) {
1137 HitTestResult result(point);
1138 return handleZeroPadding(request, result);
1139 }
1140
1141 HitTestResult result(point, topPadding, rightPadding, bottomPadding, leftPadding);
1142 renderView()->layer()->hitTest(request, result);
1143
1144 return StaticHashSetNodeList::adopt(result.rectBasedTestResult());
1145 }
1146
handleZeroPadding(const HitTestRequest & request,HitTestResult & result) const1147 PassRefPtr<NodeList> Document::handleZeroPadding(const HitTestRequest& request, HitTestResult& result) const
1148 {
1149 renderView()->layer()->hitTest(request, result);
1150
1151 Node* node = result.innerNode();
1152 if (!node)
1153 return 0;
1154
1155 node = node->shadowAncestorNode();
1156 ListHashSet<RefPtr<Node> > list;
1157 list.add(node);
1158 return StaticHashSetNodeList::adopt(list);
1159 }
1160
nodeFromPoint(Frame * frame,RenderView * renderView,int x,int y,IntPoint * localPoint=0)1161 static Node* nodeFromPoint(Frame* frame, RenderView* renderView, int x, int y, IntPoint* localPoint = 0)
1162 {
1163 if (!frame)
1164 return 0;
1165 FrameView* frameView = frame->view();
1166 if (!frameView)
1167 return 0;
1168
1169 float zoomFactor = frame->pageZoomFactor();
1170 IntPoint point = roundedIntPoint(FloatPoint(x * zoomFactor + frameView->scrollX(), y * zoomFactor + frameView->scrollY()));
1171
1172 if (!frameView->visibleContentRect().contains(point))
1173 return 0;
1174
1175 HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
1176 HitTestResult result(point);
1177 renderView->layer()->hitTest(request, result);
1178
1179 if (localPoint)
1180 *localPoint = result.localPoint();
1181
1182 return result.innerNode();
1183 }
1184
elementFromPoint(int x,int y) const1185 Element* Document::elementFromPoint(int x, int y) const
1186 {
1187 if (!renderer())
1188 return 0;
1189 Node* node = nodeFromPoint(frame(), renderView(), x, y);
1190 while (node && !node->isElementNode())
1191 node = node->parentNode();
1192 if (node)
1193 node = node->shadowAncestorNode();
1194 return static_cast<Element*>(node);
1195 }
1196
caretRangeFromPoint(int x,int y)1197 PassRefPtr<Range> Document::caretRangeFromPoint(int x, int y)
1198 {
1199 if (!renderer())
1200 return 0;
1201 IntPoint localPoint;
1202 Node* node = nodeFromPoint(frame(), renderView(), x, y, &localPoint);
1203 if (!node)
1204 return 0;
1205
1206 Node* shadowAncestorNode = node->shadowAncestorNode();
1207 if (shadowAncestorNode != node) {
1208 unsigned offset = shadowAncestorNode->nodeIndex();
1209 ContainerNode* container = shadowAncestorNode->parentNode();
1210 return Range::create(this, container, offset, container, offset);
1211 }
1212
1213 RenderObject* renderer = node->renderer();
1214 if (!renderer)
1215 return 0;
1216 VisiblePosition visiblePosition = renderer->positionForPoint(localPoint);
1217 if (visiblePosition.isNull())
1218 return 0;
1219
1220 Position rangeCompliantPosition = visiblePosition.deepEquivalent().parentAnchoredEquivalent();
1221 return Range::create(this, rangeCompliantPosition, rangeCompliantPosition);
1222 }
1223
1224 /*
1225 * Performs three operations:
1226 * 1. Convert control characters to spaces
1227 * 2. Trim leading and trailing spaces
1228 * 3. Collapse internal whitespace.
1229 */
canonicalizedTitle(Document * document,const StringWithDirection & titleWithDirection)1230 static inline StringWithDirection canonicalizedTitle(Document* document, const StringWithDirection& titleWithDirection)
1231 {
1232 const String& title = titleWithDirection.string();
1233 const UChar* characters = title.characters();
1234 unsigned length = title.length();
1235 unsigned i;
1236
1237 StringBuffer buffer(length);
1238 unsigned builderIndex = 0;
1239
1240 // Skip leading spaces and leading characters that would convert to spaces
1241 for (i = 0; i < length; ++i) {
1242 UChar c = characters[i];
1243 if (!(c <= 0x20 || c == 0x7F))
1244 break;
1245 }
1246
1247 if (i == length)
1248 return StringWithDirection();
1249
1250 // Replace control characters with spaces, and backslashes with currency symbols, and collapse whitespace.
1251 bool previousCharWasWS = false;
1252 for (; i < length; ++i) {
1253 UChar c = characters[i];
1254 if (c <= 0x20 || c == 0x7F || (WTF::Unicode::category(c) & (WTF::Unicode::Separator_Line | WTF::Unicode::Separator_Paragraph))) {
1255 if (previousCharWasWS)
1256 continue;
1257 buffer[builderIndex++] = ' ';
1258 previousCharWasWS = true;
1259 } else {
1260 buffer[builderIndex++] = c;
1261 previousCharWasWS = false;
1262 }
1263 }
1264
1265 // Strip trailing spaces
1266 while (builderIndex > 0) {
1267 --builderIndex;
1268 if (buffer[builderIndex] != ' ')
1269 break;
1270 }
1271
1272 if (!builderIndex && buffer[builderIndex] == ' ')
1273 return StringWithDirection();
1274
1275 buffer.shrink(builderIndex + 1);
1276
1277 // Replace the backslashes with currency symbols if the encoding requires it.
1278 document->displayBufferModifiedByEncoding(buffer.characters(), buffer.length());
1279
1280 return StringWithDirection(String::adopt(buffer), titleWithDirection.direction());
1281 }
1282
updateTitle(const StringWithDirection & title)1283 void Document::updateTitle(const StringWithDirection& title)
1284 {
1285 if (m_rawTitle == title)
1286 return;
1287
1288 m_rawTitle = title;
1289 m_title = canonicalizedTitle(this, m_rawTitle);
1290 if (Frame* f = frame())
1291 f->loader()->setTitle(m_title);
1292 }
1293
setTitle(const String & title)1294 void Document::setTitle(const String& title)
1295 {
1296 // Title set by JavaScript -- overrides any title elements.
1297 m_titleSetExplicitly = true;
1298 if (!isHTMLDocument())
1299 m_titleElement = 0;
1300 else if (!m_titleElement) {
1301 if (HTMLElement* headElement = head()) {
1302 m_titleElement = createElement(titleTag, false);
1303 ExceptionCode ec = 0;
1304 headElement->appendChild(m_titleElement, ec);
1305 ASSERT(!ec);
1306 }
1307 }
1308
1309 // The DOM API has no method of specifying direction, so assume LTR.
1310 updateTitle(StringWithDirection(title, LTR));
1311
1312 if (m_titleElement) {
1313 ASSERT(m_titleElement->hasTagName(titleTag));
1314 if (m_titleElement->hasTagName(titleTag))
1315 static_cast<HTMLTitleElement*>(m_titleElement.get())->setText(title);
1316 }
1317 }
1318
setTitleElement(const StringWithDirection & title,Element * titleElement)1319 void Document::setTitleElement(const StringWithDirection& title, Element* titleElement)
1320 {
1321 if (titleElement != m_titleElement) {
1322 if (m_titleElement || m_titleSetExplicitly)
1323 // Only allow the first title element to change the title -- others have no effect.
1324 return;
1325 m_titleElement = titleElement;
1326 }
1327
1328 updateTitle(title);
1329 }
1330
removeTitle(Element * titleElement)1331 void Document::removeTitle(Element* titleElement)
1332 {
1333 if (m_titleElement != titleElement)
1334 return;
1335
1336 m_titleElement = 0;
1337 m_titleSetExplicitly = false;
1338
1339 // Update title based on first title element in the head, if one exists.
1340 if (HTMLElement* headElement = head()) {
1341 for (Node* e = headElement->firstChild(); e; e = e->nextSibling())
1342 if (e->hasTagName(titleTag)) {
1343 HTMLTitleElement* titleElement = static_cast<HTMLTitleElement*>(e);
1344 setTitleElement(titleElement->textWithDirection(), titleElement);
1345 break;
1346 }
1347 }
1348
1349 if (!m_titleElement)
1350 updateTitle(StringWithDirection());
1351 }
1352
nodeName() const1353 String Document::nodeName() const
1354 {
1355 return "#document";
1356 }
1357
nodeType() const1358 Node::NodeType Document::nodeType() const
1359 {
1360 return DOCUMENT_NODE;
1361 }
1362
view() const1363 FrameView* Document::view() const
1364 {
1365 return m_frame ? m_frame->view() : 0;
1366 }
1367
page() const1368 Page* Document::page() const
1369 {
1370 return m_frame ? m_frame->page() : 0;
1371 }
1372
settings() const1373 Settings* Document::settings() const
1374 {
1375 return m_frame ? m_frame->settings() : 0;
1376 }
1377
createRange()1378 PassRefPtr<Range> Document::createRange()
1379 {
1380 return Range::create(this);
1381 }
1382
createNodeIterator(Node * root,unsigned whatToShow,PassRefPtr<NodeFilter> filter,bool expandEntityReferences,ExceptionCode & ec)1383 PassRefPtr<NodeIterator> Document::createNodeIterator(Node* root, unsigned whatToShow,
1384 PassRefPtr<NodeFilter> filter, bool expandEntityReferences, ExceptionCode& ec)
1385 {
1386 if (!root) {
1387 ec = NOT_SUPPORTED_ERR;
1388 return 0;
1389 }
1390 return NodeIterator::create(root, whatToShow, filter, expandEntityReferences);
1391 }
1392
createTreeWalker(Node * root,unsigned whatToShow,PassRefPtr<NodeFilter> filter,bool expandEntityReferences,ExceptionCode & ec)1393 PassRefPtr<TreeWalker> Document::createTreeWalker(Node* root, unsigned whatToShow,
1394 PassRefPtr<NodeFilter> filter, bool expandEntityReferences, ExceptionCode& ec)
1395 {
1396 if (!root) {
1397 ec = NOT_SUPPORTED_ERR;
1398 return 0;
1399 }
1400 return TreeWalker::create(root, whatToShow, filter, expandEntityReferences);
1401 }
1402
scheduleForcedStyleRecalc()1403 void Document::scheduleForcedStyleRecalc()
1404 {
1405 m_pendingStyleRecalcShouldForce = true;
1406 scheduleStyleRecalc();
1407 }
1408
scheduleStyleRecalc()1409 void Document::scheduleStyleRecalc()
1410 {
1411 if (m_styleRecalcTimer.isActive() || inPageCache())
1412 return;
1413
1414 ASSERT(childNeedsStyleRecalc() || m_pendingStyleRecalcShouldForce);
1415
1416 if (!documentsThatNeedStyleRecalc)
1417 documentsThatNeedStyleRecalc = new HashSet<Document*>;
1418 documentsThatNeedStyleRecalc->add(this);
1419
1420 // FIXME: Why on earth is this here? This is clearly misplaced.
1421 invalidateAccessKeyMap();
1422
1423 m_styleRecalcTimer.startOneShot(0);
1424 }
1425
unscheduleStyleRecalc()1426 void Document::unscheduleStyleRecalc()
1427 {
1428 ASSERT(!childNeedsStyleRecalc());
1429
1430 if (documentsThatNeedStyleRecalc)
1431 documentsThatNeedStyleRecalc->remove(this);
1432
1433 m_styleRecalcTimer.stop();
1434 m_pendingStyleRecalcShouldForce = false;
1435 }
1436
isPendingStyleRecalc() const1437 bool Document::isPendingStyleRecalc() const
1438 {
1439 return m_styleRecalcTimer.isActive() && !m_inStyleRecalc;
1440 }
1441
styleRecalcTimerFired(Timer<Document> *)1442 void Document::styleRecalcTimerFired(Timer<Document>*)
1443 {
1444 updateStyleIfNeeded();
1445 }
1446
childNeedsAndNotInStyleRecalc()1447 bool Document::childNeedsAndNotInStyleRecalc()
1448 {
1449 return childNeedsStyleRecalc() && !m_inStyleRecalc;
1450 }
1451
recalcStyle(StyleChange change)1452 void Document::recalcStyle(StyleChange change)
1453 {
1454 // we should not enter style recalc while painting
1455 if (view() && view()->isPainting()) {
1456 ASSERT(!view()->isPainting());
1457 return;
1458 }
1459
1460 if (m_inStyleRecalc)
1461 return; // Guard against re-entrancy. -dwh
1462
1463 if (m_hasDirtyStyleSelector)
1464 recalcStyleSelector();
1465
1466 InspectorInstrumentationCookie cookie = InspectorInstrumentation::willRecalculateStyle(this);
1467
1468 m_inStyleRecalc = true;
1469 suspendPostAttachCallbacks();
1470 RenderWidget::suspendWidgetHierarchyUpdates();
1471
1472 RefPtr<FrameView> frameView = view();
1473 if (frameView) {
1474 frameView->pauseScheduledEvents();
1475 frameView->beginDeferredRepaints();
1476 }
1477
1478 #ifdef ANDROID_INSTRUMENT
1479 android::TimeCounter::start(android::TimeCounter::CalculateStyleTimeCounter);
1480 #endif
1481
1482 ASSERT(!renderer() || renderArena());
1483 if (!renderer() || !renderArena())
1484 goto bail_out;
1485
1486 if (m_pendingStyleRecalcShouldForce)
1487 change = Force;
1488
1489 if (change == Force) {
1490 // style selector may set this again during recalc
1491 m_hasNodesWithPlaceholderStyle = false;
1492
1493 RefPtr<RenderStyle> documentStyle = CSSStyleSelector::styleForDocument(this);
1494 StyleChange ch = diff(documentStyle.get(), renderer()->style());
1495 if (renderer() && ch != NoChange)
1496 renderer()->setStyle(documentStyle.release());
1497 }
1498
1499 for (Node* n = firstChild(); n; n = n->nextSibling())
1500 if (change >= Inherit || n->childNeedsStyleRecalc() || n->needsStyleRecalc())
1501 n->recalcStyle(change);
1502
1503 #ifdef ANDROID_INSTRUMENT
1504 android::TimeCounter::record(android::TimeCounter::CalculateStyleTimeCounter, __FUNCTION__);
1505 #endif
1506
1507 #if USE(ACCELERATED_COMPOSITING)
1508 if (view()) {
1509 bool layoutPending = view()->layoutPending() || renderer()->needsLayout();
1510 // If we didn't update compositing layers because of layout(), we need to do so here.
1511 if (!layoutPending)
1512 view()->updateCompositingLayers();
1513 }
1514 #endif
1515
1516 bail_out:
1517 clearNeedsStyleRecalc();
1518 clearChildNeedsStyleRecalc();
1519 unscheduleStyleRecalc();
1520
1521 m_inStyleRecalc = false;
1522
1523 // Pseudo element removal and similar may only work with these flags still set. Reset them after the style recalc.
1524 if (m_styleSelector) {
1525 m_usesSiblingRules = m_styleSelector->usesSiblingRules();
1526 m_usesFirstLineRules = m_styleSelector->usesFirstLineRules();
1527 m_usesBeforeAfterRules = m_styleSelector->usesBeforeAfterRules();
1528 m_usesLinkRules = m_styleSelector->usesLinkRules();
1529 }
1530
1531 if (frameView) {
1532 frameView->resumeScheduledEvents();
1533 frameView->endDeferredRepaints();
1534 }
1535 RenderWidget::resumeWidgetHierarchyUpdates();
1536 resumePostAttachCallbacks();
1537
1538 // If we wanted to call implicitClose() during recalcStyle, do so now that we're finished.
1539 if (m_closeAfterStyleRecalc) {
1540 m_closeAfterStyleRecalc = false;
1541 implicitClose();
1542 }
1543
1544 InspectorInstrumentation::didRecalculateStyle(cookie);
1545 }
1546
updateStyleIfNeeded()1547 void Document::updateStyleIfNeeded()
1548 {
1549 ASSERT(isMainThread());
1550 ASSERT(!view() || (!view()->isInLayout() && !view()->isPainting()));
1551
1552 if ((!m_pendingStyleRecalcShouldForce && !childNeedsStyleRecalc()) || inPageCache())
1553 return;
1554
1555 if (m_frame)
1556 m_frame->animation()->beginAnimationUpdate();
1557
1558 recalcStyle(NoChange);
1559
1560 // Tell the animation controller that updateStyleIfNeeded is finished and it can do any post-processing
1561 if (m_frame)
1562 m_frame->animation()->endAnimationUpdate();
1563 }
1564
updateStyleForAllDocuments()1565 void Document::updateStyleForAllDocuments()
1566 {
1567 ASSERT(isMainThread());
1568 if (!documentsThatNeedStyleRecalc)
1569 return;
1570
1571 while (documentsThatNeedStyleRecalc->size()) {
1572 HashSet<Document*>::iterator it = documentsThatNeedStyleRecalc->begin();
1573 Document* doc = *it;
1574 documentsThatNeedStyleRecalc->remove(doc);
1575 doc->updateStyleIfNeeded();
1576 }
1577 }
1578
updateLayout()1579 void Document::updateLayout()
1580 {
1581 ASSERT(isMainThread());
1582 if (Element* oe = ownerElement())
1583 oe->document()->updateLayout();
1584
1585 updateStyleIfNeeded();
1586
1587 // Only do a layout if changes have occurred that make it necessary.
1588 FrameView* v = view();
1589 if (v && renderer() && (v->layoutPending() || renderer()->needsLayout()))
1590 v->layout();
1591 }
1592
1593 // FIXME: This is a bad idea and needs to be removed eventually.
1594 // Other browsers load stylesheets before they continue parsing the web page.
1595 // Since we don't, we can run JavaScript code that needs answers before the
1596 // stylesheets are loaded. Doing a layout ignoring the pending stylesheets
1597 // lets us get reasonable answers. The long term solution to this problem is
1598 // to instead suspend JavaScript execution.
updateLayoutIgnorePendingStylesheets()1599 void Document::updateLayoutIgnorePendingStylesheets()
1600 {
1601 bool oldIgnore = m_ignorePendingStylesheets;
1602
1603 if (!haveStylesheetsLoaded()) {
1604 m_ignorePendingStylesheets = true;
1605 // FIXME: We are willing to attempt to suppress painting with outdated style info only once. Our assumption is that it would be
1606 // dangerous to try to stop it a second time, after page content has already been loaded and displayed
1607 // with accurate style information. (Our suppression involves blanking the whole page at the
1608 // moment. If it were more refined, we might be able to do something better.)
1609 // It's worth noting though that this entire method is a hack, since what we really want to do is
1610 // suspend JS instead of doing a layout with inaccurate information.
1611 if (body() && !body()->renderer() && m_pendingSheetLayout == NoLayoutWithPendingSheets) {
1612 m_pendingSheetLayout = DidLayoutWithPendingSheets;
1613 styleSelectorChanged(RecalcStyleImmediately);
1614 } else if (m_hasNodesWithPlaceholderStyle)
1615 // If new nodes have been added or style recalc has been done with style sheets still pending, some nodes
1616 // may not have had their real style calculated yet. Normally this gets cleaned when style sheets arrive
1617 // but here we need up-to-date style immediately.
1618 recalcStyle(Force);
1619 }
1620
1621 updateLayout();
1622
1623 m_ignorePendingStylesheets = oldIgnore;
1624 }
1625
styleForElementIgnoringPendingStylesheets(Element * element)1626 PassRefPtr<RenderStyle> Document::styleForElementIgnoringPendingStylesheets(Element* element)
1627 {
1628 ASSERT_ARG(element, element->document() == this);
1629
1630 bool oldIgnore = m_ignorePendingStylesheets;
1631 m_ignorePendingStylesheets = true;
1632 RefPtr<RenderStyle> style = styleSelector()->styleForElement(element, element->parentNode() ? element->parentNode()->computedStyle() : 0);
1633 m_ignorePendingStylesheets = oldIgnore;
1634 return style.release();
1635 }
1636
styleForPage(int pageIndex)1637 PassRefPtr<RenderStyle> Document::styleForPage(int pageIndex)
1638 {
1639 RefPtr<RenderStyle> style = styleSelector()->styleForPage(pageIndex);
1640 return style.release();
1641 }
1642
isPageBoxVisible(int pageIndex)1643 bool Document::isPageBoxVisible(int pageIndex)
1644 {
1645 RefPtr<RenderStyle> style = styleForPage(pageIndex);
1646 return style->visibility() != HIDDEN; // display property doesn't apply to @page.
1647 }
1648
pageSizeAndMarginsInPixels(int pageIndex,IntSize & pageSize,int & marginTop,int & marginRight,int & marginBottom,int & marginLeft)1649 void Document::pageSizeAndMarginsInPixels(int pageIndex, IntSize& pageSize, int& marginTop, int& marginRight, int& marginBottom, int& marginLeft)
1650 {
1651 RefPtr<RenderStyle> style = styleForPage(pageIndex);
1652
1653 int width = pageSize.width();
1654 int height = pageSize.height();
1655 switch (style->pageSizeType()) {
1656 case PAGE_SIZE_AUTO:
1657 break;
1658 case PAGE_SIZE_AUTO_LANDSCAPE:
1659 if (width < height)
1660 std::swap(width, height);
1661 break;
1662 case PAGE_SIZE_AUTO_PORTRAIT:
1663 if (width > height)
1664 std::swap(width, height);
1665 break;
1666 case PAGE_SIZE_RESOLVED: {
1667 LengthSize size = style->pageSize();
1668 ASSERT(size.width().isFixed());
1669 ASSERT(size.height().isFixed());
1670 width = size.width().calcValue(0);
1671 height = size.height().calcValue(0);
1672 break;
1673 }
1674 default:
1675 ASSERT_NOT_REACHED();
1676 }
1677 pageSize = IntSize(width, height);
1678
1679 // The percentage is calculated with respect to the width even for margin top and bottom.
1680 // http://www.w3.org/TR/CSS2/box.html#margin-properties
1681 marginTop = style->marginTop().isAuto() ? marginTop : style->marginTop().calcValue(width);
1682 marginRight = style->marginRight().isAuto() ? marginRight : style->marginRight().calcValue(width);
1683 marginBottom = style->marginBottom().isAuto() ? marginBottom : style->marginBottom().calcValue(width);
1684 marginLeft = style->marginLeft().isAuto() ? marginLeft : style->marginLeft().calcValue(width);
1685 }
1686
cssPrimitiveValueCache() const1687 PassRefPtr<CSSPrimitiveValueCache> Document::cssPrimitiveValueCache() const
1688 {
1689 if (!m_cssPrimitiveValueCache)
1690 m_cssPrimitiveValueCache = CSSPrimitiveValueCache::create();
1691 return m_cssPrimitiveValueCache;
1692 }
1693
createStyleSelector()1694 void Document::createStyleSelector()
1695 {
1696 bool matchAuthorAndUserStyles = true;
1697 if (Settings* docSettings = settings())
1698 matchAuthorAndUserStyles = docSettings->authorAndUserStylesEnabled();
1699 m_styleSelector.set(new CSSStyleSelector(this, m_styleSheets.get(), m_mappedElementSheet.get(), pageUserSheet(), pageGroupUserSheets(),
1700 !inQuirksMode(), matchAuthorAndUserStyles));
1701 // Delay resetting the flags until after next style recalc since unapplying the style may not work without these set (this is true at least with before/after).
1702 m_usesSiblingRules = m_usesSiblingRules || m_styleSelector->usesSiblingRules();
1703 m_usesFirstLineRules = m_usesFirstLineRules || m_styleSelector->usesFirstLineRules();
1704 m_usesBeforeAfterRules = m_usesBeforeAfterRules || m_styleSelector->usesBeforeAfterRules();
1705 m_usesLinkRules = m_usesLinkRules || m_styleSelector->usesLinkRules();
1706 }
1707
attach()1708 void Document::attach()
1709 {
1710 ASSERT(!attached());
1711 ASSERT(!m_inPageCache);
1712 #if !PLATFORM(ANDROID)
1713 ASSERT(!m_axObjectCache);
1714 #endif
1715
1716 if (!m_renderArena)
1717 m_renderArena = new RenderArena();
1718
1719 // Create the rendering tree
1720 setRenderer(new (m_renderArena.get()) RenderView(this, view()));
1721 #if USE(ACCELERATED_COMPOSITING)
1722 renderView()->didMoveOnscreen();
1723 #endif
1724
1725 recalcStyle(Force);
1726
1727 RenderObject* render = renderer();
1728 setRenderer(0);
1729
1730 TreeScope::attach();
1731
1732 setRenderer(render);
1733 }
1734
detach()1735 void Document::detach()
1736 {
1737 ASSERT(attached());
1738 ASSERT(!m_inPageCache);
1739
1740 clearAXObjectCache();
1741 stopActiveDOMObjects();
1742 m_eventQueue->cancelQueuedEvents();
1743
1744 #if ENABLE(REQUEST_ANIMATION_FRAME)
1745 // FIXME: consider using ActiveDOMObject.
1746 m_scriptedAnimationController = 0;
1747 #endif
1748
1749 RenderObject* render = renderer();
1750
1751 // Send out documentWillBecomeInactive() notifications to registered elements,
1752 // in order to stop media elements
1753 documentWillBecomeInactive();
1754
1755 #if ENABLE(SHARED_WORKERS)
1756 SharedWorkerRepository::documentDetached(this);
1757 #endif
1758
1759 if (m_frame) {
1760 FrameView* view = m_frame->view();
1761 if (view)
1762 view->detachCustomScrollbars();
1763 }
1764
1765 // indicate destruction mode, i.e. attached() but renderer == 0
1766 setRenderer(0);
1767
1768 #if ENABLE(FULLSCREEN_API)
1769 if (m_fullScreenRenderer)
1770 setFullScreenRenderer(0);
1771 #endif
1772
1773 m_hoverNode = 0;
1774 m_focusedNode = 0;
1775 m_activeNode = 0;
1776
1777 TreeScope::detach();
1778
1779 unscheduleStyleRecalc();
1780
1781 if (render)
1782 render->destroy();
1783
1784 // This is required, as our Frame might delete itself as soon as it detaches
1785 // us. However, this violates Node::detach() semantics, as it's never
1786 // possible to re-attach. Eventually Document::detach() should be renamed,
1787 // or this setting of the frame to 0 could be made explicit in each of the
1788 // callers of Document::detach().
1789 m_frame = 0;
1790 m_renderArena.clear();
1791 }
1792
removeAllEventListeners()1793 void Document::removeAllEventListeners()
1794 {
1795 #if ENABLE(TOUCH_EVENTS)
1796 Page* ownerPage = page();
1797 if (!m_inPageCache && ownerPage && (m_frame == ownerPage->mainFrame()) && hasListenerType(Document::TOUCH_LISTENER)) {
1798 // Inform the Chrome Client that it no longer needs to forward touch
1799 // events to WebCore as the document removes all the event listeners.
1800 ownerPage->chrome()->client()->needTouchEvents(false);
1801 }
1802 #endif
1803
1804 EventTarget::removeAllEventListeners();
1805
1806 if (DOMWindow* domWindow = this->domWindow())
1807 domWindow->removeAllEventListeners();
1808 for (Node* node = firstChild(); node; node = node->traverseNextNode())
1809 node->removeAllEventListeners();
1810 }
1811
renderView() const1812 RenderView* Document::renderView() const
1813 {
1814 return toRenderView(renderer());
1815 }
1816
clearAXObjectCache()1817 void Document::clearAXObjectCache()
1818 {
1819 #if PLATFORM(ANDROID)
1820 return;
1821 #else
1822 // clear cache in top document
1823 if (m_axObjectCache) {
1824 // Clear the cache member variable before calling delete because attempts
1825 // are made to access it during destruction.
1826 AXObjectCache* axObjectCache = m_axObjectCache;
1827 m_axObjectCache = 0;
1828 delete axObjectCache;
1829 return;
1830 }
1831
1832 // ask the top-level document to clear its cache
1833 Document* doc = topDocument();
1834 if (doc != this)
1835 doc->clearAXObjectCache();
1836 #endif
1837 }
1838
axObjectCacheExists() const1839 bool Document::axObjectCacheExists() const
1840 {
1841 #if PLATFORM(ANDROID)
1842 return false;
1843 #else
1844 if (m_axObjectCache)
1845 return true;
1846
1847 Document* doc = topDocument();
1848 if (doc != this)
1849 return doc->axObjectCacheExists();
1850
1851 return false;
1852 #endif
1853 }
1854
axObjectCache() const1855 AXObjectCache* Document::axObjectCache() const
1856 {
1857 #if PLATFORM(ANDROID)
1858 return 0;
1859 #else
1860 // The only document that actually has a AXObjectCache is the top-level
1861 // document. This is because we need to be able to get from any WebCoreAXObject
1862 // to any other WebCoreAXObject on the same page. Using a single cache allows
1863 // lookups across nested webareas (i.e. multiple documents).
1864
1865 if (m_axObjectCache) {
1866 // return already known top-level cache
1867 if (!ownerElement())
1868 return m_axObjectCache;
1869
1870 // In some pages with frames, the cache is created before the sub-webarea is
1871 // inserted into the tree. Here, we catch that case and just toss the old
1872 // cache and start over.
1873 // NOTE: This recovery may no longer be needed. I have been unable to trigger
1874 // it again. See rdar://5794454
1875 // FIXME: Can this be fixed when inserting the subframe instead of now?
1876 // FIXME: If this function was called to get the cache in order to remove
1877 // an AXObject, we are now deleting the cache as a whole and returning a
1878 // new empty cache that does not contain the AXObject! That should actually
1879 // be OK. I am concerned about other cases like this where accessing the
1880 // cache blows away the AXObject being operated on.
1881 delete m_axObjectCache;
1882 m_axObjectCache = 0;
1883 }
1884
1885 // ask the top-level document for its cache
1886 Document* doc = topDocument();
1887 if (doc != this)
1888 return doc->axObjectCache();
1889
1890 // this is the top-level document, so install a new cache
1891 m_axObjectCache = new AXObjectCache(this);
1892 return m_axObjectCache;
1893 #endif // ANDROID
1894 }
1895
setVisuallyOrdered()1896 void Document::setVisuallyOrdered()
1897 {
1898 m_visuallyOrdered = true;
1899 if (renderer())
1900 renderer()->style()->setVisuallyOrdered(true);
1901 }
1902
createParser()1903 PassRefPtr<DocumentParser> Document::createParser()
1904 {
1905 // FIXME: this should probably pass the frame instead
1906 return XMLDocumentParser::create(this, view());
1907 }
1908
scriptableDocumentParser() const1909 ScriptableDocumentParser* Document::scriptableDocumentParser() const
1910 {
1911 return parser() ? parser()->asScriptableDocumentParser() : 0;
1912 }
1913
open(Document * ownerDocument)1914 void Document::open(Document* ownerDocument)
1915 {
1916 if (ownerDocument) {
1917 setURL(ownerDocument->url());
1918 m_cookieURL = ownerDocument->cookieURL();
1919 ScriptExecutionContext::setSecurityOrigin(ownerDocument->securityOrigin());
1920 }
1921
1922 if (m_frame) {
1923 if (ScriptableDocumentParser* parser = scriptableDocumentParser()) {
1924 if (parser->isParsing()) {
1925 // FIXME: HTML5 doesn't tell us to check this, it might not be correct.
1926 if (parser->isExecutingScript())
1927 return;
1928
1929 if (!parser->wasCreatedByScript() && parser->hasInsertionPoint())
1930 return;
1931 }
1932 }
1933
1934 if (m_frame->loader()->state() == FrameStateProvisional)
1935 m_frame->loader()->stopAllLoaders();
1936 }
1937
1938 removeAllEventListeners();
1939 implicitOpen();
1940 if (ScriptableDocumentParser* parser = scriptableDocumentParser())
1941 parser->setWasCreatedByScript(true);
1942
1943 if (DOMWindow* domWindow = this->domWindow())
1944 domWindow->removeAllEventListeners();
1945
1946 if (m_frame)
1947 m_frame->loader()->didExplicitOpen();
1948 }
1949
detachParser()1950 void Document::detachParser()
1951 {
1952 if (!m_parser)
1953 return;
1954 m_parser->detach();
1955 m_parser.clear();
1956 }
1957
cancelParsing()1958 void Document::cancelParsing()
1959 {
1960 if (!m_parser)
1961 return;
1962
1963 // We have to clear the parser to avoid possibly triggering
1964 // the onload handler when closing as a side effect of a cancel-style
1965 // change, such as opening a new document or closing the window while
1966 // still parsing
1967 detachParser();
1968 explicitClose();
1969 }
1970
implicitOpen()1971 void Document::implicitOpen()
1972 {
1973 cancelParsing();
1974
1975 removeChildren();
1976
1977 setCompatibilityMode(NoQuirksMode);
1978
1979 m_parser = createParser();
1980 setParsing(true);
1981 setReadyState(Loading);
1982
1983 // If we reload, the animation controller sticks around and has
1984 // a stale animation time. We need to update it here.
1985 if (m_frame && m_frame->animation())
1986 m_frame->animation()->beginAnimationUpdate();
1987 }
1988
body() const1989 HTMLElement* Document::body() const
1990 {
1991 Node* de = documentElement();
1992 if (!de)
1993 return 0;
1994
1995 // try to prefer a FRAMESET element over BODY
1996 Node* body = 0;
1997 for (Node* i = de->firstChild(); i; i = i->nextSibling()) {
1998 if (i->hasTagName(framesetTag))
1999 return toHTMLElement(i);
2000
2001 if (i->hasTagName(bodyTag) && !body)
2002 body = i;
2003 }
2004 return toHTMLElement(body);
2005 }
2006
setBody(PassRefPtr<HTMLElement> newBody,ExceptionCode & ec)2007 void Document::setBody(PassRefPtr<HTMLElement> newBody, ExceptionCode& ec)
2008 {
2009 ec = 0;
2010
2011 if (!newBody || !documentElement() || !newBody->hasTagName(bodyTag)) {
2012 ec = HIERARCHY_REQUEST_ERR;
2013 return;
2014 }
2015
2016 if (newBody->document() && newBody->document() != this) {
2017 RefPtr<Node> node = importNode(newBody.get(), true, ec);
2018 if (ec)
2019 return;
2020
2021 newBody = toHTMLElement(node.get());
2022 }
2023
2024 HTMLElement* b = body();
2025 if (!b)
2026 documentElement()->appendChild(newBody, ec);
2027 else
2028 documentElement()->replaceChild(newBody, b, ec);
2029 }
2030
head()2031 HTMLHeadElement* Document::head()
2032 {
2033 Node* de = documentElement();
2034 if (!de)
2035 return 0;
2036
2037 for (Node* e = de->firstChild(); e; e = e->nextSibling())
2038 if (e->hasTagName(headTag))
2039 return static_cast<HTMLHeadElement*>(e);
2040
2041 return 0;
2042 }
2043
close()2044 void Document::close()
2045 {
2046 // FIXME: We should follow the specification more closely:
2047 // http://www.whatwg.org/specs/web-apps/current-work/#dom-document-close
2048
2049 if (!scriptableDocumentParser() || !scriptableDocumentParser()->wasCreatedByScript())
2050 return;
2051
2052 explicitClose();
2053 }
2054
explicitClose()2055 void Document::explicitClose()
2056 {
2057 if (!m_frame) {
2058 // Because we have no frame, we don't know if all loading has completed,
2059 // so we just call implicitClose() immediately. FIXME: This might fire
2060 // the load event prematurely <http://bugs.webkit.org/show_bug.cgi?id=14568>.
2061 if (m_parser)
2062 m_parser->finish();
2063 implicitClose();
2064 return;
2065 }
2066
2067 // This code calls implicitClose() if all loading has completed.
2068 loader()->writer()->endIfNotLoadingMainResource();
2069 if (m_frame)
2070 m_frame->loader()->checkCompleted();
2071 }
2072
implicitClose()2073 void Document::implicitClose()
2074 {
2075 // If we're in the middle of recalcStyle, we need to defer the close until the style information is accurate and all elements are re-attached.
2076 if (m_inStyleRecalc) {
2077 m_closeAfterStyleRecalc = true;
2078 return;
2079 }
2080
2081 bool wasLocationChangePending = frame() && frame()->navigationScheduler()->locationChangePending();
2082 bool doload = !parsing() && m_parser && !m_processingLoadEvent && !wasLocationChangePending;
2083
2084 if (!doload)
2085 return;
2086
2087 m_processingLoadEvent = true;
2088
2089 ScriptableDocumentParser* parser = scriptableDocumentParser();
2090 m_wellFormed = parser && parser->wellFormed();
2091
2092 // We have to clear the parser, in case someone document.write()s from the
2093 // onLoad event handler, as in Radar 3206524.
2094 detachParser();
2095
2096 // Parser should have picked up all preloads by now
2097 m_cachedResourceLoader->clearPreloads();
2098
2099 // FIXME: We kick off the icon loader when the Document is done parsing.
2100 // There are earlier opportunities we could start it:
2101 // -When the <head> finishes parsing
2102 // -When any new HTMLLinkElement is inserted into the document
2103 // But those add a dynamic component to the favicon that has UI
2104 // ramifications, and we need to decide what is the Right Thing To Do(tm)
2105 Frame* f = frame();
2106 if (f)
2107 f->loader()->startIconLoader();
2108
2109 // Resume the animations (or start them)
2110 if (f)
2111 f->animation()->resumeAnimationsForDocument(this);
2112
2113 ImageLoader::dispatchPendingBeforeLoadEvents();
2114 ImageLoader::dispatchPendingLoadEvents();
2115 dispatchWindowLoadEvent();
2116 enqueuePageshowEvent(PageshowEventNotPersisted);
2117 enqueuePopstateEvent(m_pendingStateObject ? m_pendingStateObject.release() : SerializedScriptValue::nullValue());
2118
2119 if (f)
2120 f->loader()->handledOnloadEvents();
2121 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2122 if (!ownerElement())
2123 printf("onload fired at %d\n", elapsedTime());
2124 #endif
2125
2126 m_processingLoadEvent = false;
2127
2128 // An event handler may have removed the frame
2129 if (!frame())
2130 return;
2131
2132 // Make sure both the initial layout and reflow happen after the onload
2133 // fires. This will improve onload scores, and other browsers do it.
2134 // If they wanna cheat, we can too. -dwh
2135
2136 if (frame()->navigationScheduler()->locationChangePending() && elapsedTime() < cLayoutScheduleThreshold) {
2137 // Just bail out. Before or during the onload we were shifted to another page.
2138 // The old i-Bench suite does this. When this happens don't bother painting or laying out.
2139 view()->unscheduleRelayout();
2140 return;
2141 }
2142
2143 frame()->loader()->checkCallImplicitClose();
2144 RenderObject* renderObject = renderer();
2145
2146 // We used to force a synchronous display and flush here. This really isn't
2147 // necessary and can in fact be actively harmful if pages are loading at a rate of > 60fps
2148 // (if your platform is syncing flushes and limiting them to 60fps).
2149 m_overMinimumLayoutThreshold = true;
2150 if (!ownerElement() || (ownerElement()->renderer() && !ownerElement()->renderer()->needsLayout())) {
2151 updateStyleIfNeeded();
2152
2153 // Always do a layout after loading if needed.
2154 if (view() && renderObject && (!renderObject->firstChild() || renderObject->needsLayout()))
2155 view()->layout();
2156 }
2157
2158 #if PLATFORM(MAC) || PLATFORM(CHROMIUM)
2159 if (f && renderObject && this == topDocument() && AXObjectCache::accessibilityEnabled()) {
2160 // The AX cache may have been cleared at this point, but we need to make sure it contains an
2161 // AX object to send the notification to. getOrCreate will make sure that an valid AX object
2162 // exists in the cache (we ignore the return value because we don't need it here). This is
2163 // only safe to call when a layout is not in progress, so it can not be used in postNotification.
2164 axObjectCache()->getOrCreate(renderObject);
2165 axObjectCache()->postNotification(renderObject, AXObjectCache::AXLoadComplete, true);
2166 }
2167 #endif
2168
2169 #if ENABLE(SVG)
2170 // FIXME: Officially, time 0 is when the outermost <svg> receives its
2171 // SVGLoad event, but we don't implement those yet. This is close enough
2172 // for now. In some cases we should have fired earlier.
2173 if (svgExtensions())
2174 accessSVGExtensions()->startAnimations();
2175 #endif
2176 }
2177
setParsing(bool b)2178 void Document::setParsing(bool b)
2179 {
2180 m_bParsing = b;
2181 if (!m_bParsing && view())
2182 view()->scheduleRelayout();
2183
2184 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2185 if (!ownerElement() && !m_bParsing)
2186 printf("Parsing finished at %d\n", elapsedTime());
2187 #endif
2188 }
2189
shouldScheduleLayout()2190 bool Document::shouldScheduleLayout()
2191 {
2192 // This function will only be called when FrameView thinks a layout is needed.
2193 // This enforces a couple extra rules.
2194 //
2195 // (a) Only schedule a layout once the stylesheets are loaded.
2196 // (b) Only schedule layout once we have a body element.
2197
2198 return (haveStylesheetsLoaded() && body())
2199 || (documentElement() && !documentElement()->hasTagName(htmlTag));
2200 }
2201
isLayoutTimerActive()2202 bool Document::isLayoutTimerActive()
2203 {
2204 if (!view() || !view()->layoutPending())
2205 return false;
2206 bool isPendingLayoutImmediate = minimumLayoutDelay() == m_extraLayoutDelay;
2207 return isPendingLayoutImmediate;
2208 }
2209
minimumLayoutDelay()2210 int Document::minimumLayoutDelay()
2211 {
2212 if (m_overMinimumLayoutThreshold)
2213 return m_extraLayoutDelay;
2214
2215 int elapsed = elapsedTime();
2216 m_overMinimumLayoutThreshold = elapsed > cLayoutScheduleThreshold;
2217
2218 // We'll want to schedule the timer to fire at the minimum layout threshold.
2219 return max(0, cLayoutScheduleThreshold - elapsed) + m_extraLayoutDelay;
2220 }
2221
elapsedTime() const2222 int Document::elapsedTime() const
2223 {
2224 return static_cast<int>((currentTime() - m_startTime) * 1000);
2225 }
2226
write(const SegmentedString & text,Document * ownerDocument)2227 void Document::write(const SegmentedString& text, Document* ownerDocument)
2228 {
2229 NestingLevelIncrementer nestingLevelIncrementer(m_writeRecursionDepth);
2230
2231 m_writeRecursionIsTooDeep = (m_writeRecursionDepth > 1) && m_writeRecursionIsTooDeep;
2232 m_writeRecursionIsTooDeep = (m_writeRecursionDepth > cMaxWriteRecursionDepth) || m_writeRecursionIsTooDeep;
2233
2234 if (m_writeRecursionIsTooDeep)
2235 return;
2236
2237 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2238 if (!ownerElement())
2239 printf("Beginning a document.write at %d\n", elapsedTime());
2240 #endif
2241
2242 bool hasInsertionPoint = m_parser && m_parser->hasInsertionPoint();
2243 if (!hasInsertionPoint && m_ignoreDestructiveWriteCount)
2244 return;
2245
2246 if (!hasInsertionPoint)
2247 open(ownerDocument);
2248
2249 ASSERT(m_parser);
2250 m_parser->insert(text);
2251
2252 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2253 if (!ownerElement())
2254 printf("Ending a document.write at %d\n", elapsedTime());
2255 #endif
2256 }
2257
write(const String & text,Document * ownerDocument)2258 void Document::write(const String& text, Document* ownerDocument)
2259 {
2260 write(SegmentedString(text), ownerDocument);
2261 }
2262
writeln(const String & text,Document * ownerDocument)2263 void Document::writeln(const String& text, Document* ownerDocument)
2264 {
2265 write(text, ownerDocument);
2266 write("\n", ownerDocument);
2267 }
2268
finishParsing()2269 void Document::finishParsing()
2270 {
2271 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2272 if (!ownerElement())
2273 printf("Received all data at %d\n", elapsedTime());
2274 #endif
2275
2276 // Let the parser go through as much data as it can. There will be three possible outcomes after
2277 // finish() is called:
2278 // (1) All remaining data is parsed, document isn't loaded yet
2279 // (2) All remaining data is parsed, document is loaded, parser gets deleted
2280 // (3) Data is still remaining to be parsed.
2281 if (m_parser)
2282 m_parser->finish();
2283 }
2284
virtualURL() const2285 const KURL& Document::virtualURL() const
2286 {
2287 return m_url;
2288 }
2289
virtualCompleteURL(const String & url) const2290 KURL Document::virtualCompleteURL(const String& url) const
2291 {
2292 return completeURL(url);
2293 }
2294
minimumTimerInterval() const2295 double Document::minimumTimerInterval() const
2296 {
2297 Page* p = page();
2298 if (!p)
2299 return ScriptExecutionContext::minimumTimerInterval();
2300 return p->settings()->minDOMTimerInterval();
2301 }
2302
errorEventTarget()2303 EventTarget* Document::errorEventTarget()
2304 {
2305 return domWindow();
2306 }
2307
logExceptionToConsole(const String & errorMessage,int lineNumber,const String & sourceURL,PassRefPtr<ScriptCallStack> callStack)2308 void Document::logExceptionToConsole(const String& errorMessage, int lineNumber, const String& sourceURL, PassRefPtr<ScriptCallStack> callStack)
2309 {
2310 MessageType messageType = callStack ? UncaughtExceptionMessageType : LogMessageType;
2311 addMessage(JSMessageSource, messageType, ErrorMessageLevel, errorMessage, lineNumber, sourceURL, callStack);
2312 }
2313
setURL(const KURL & url)2314 void Document::setURL(const KURL& url)
2315 {
2316 const KURL& newURL = url.isEmpty() ? blankURL() : url;
2317 if (newURL == m_url)
2318 return;
2319
2320 m_url = newURL;
2321 m_documentURI = m_url.string();
2322 updateBaseURL();
2323 }
2324
updateBaseURL()2325 void Document::updateBaseURL()
2326 {
2327 // DOM 3 Core: When the Document supports the feature "HTML" [DOM Level 2 HTML], the base URI is computed using
2328 // first the value of the href attribute of the HTML BASE element if any, and the value of the documentURI attribute
2329 // from the Document interface otherwise.
2330 if (m_baseElementURL.isEmpty()) {
2331 // The documentURI attribute is an arbitrary string. DOM 3 Core does not specify how it should be resolved,
2332 // so we use a null base URL.
2333 m_baseURL = KURL(KURL(), documentURI());
2334 } else
2335 m_baseURL = m_baseElementURL;
2336 if (!m_baseURL.isValid())
2337 m_baseURL = KURL();
2338
2339 if (m_elemSheet)
2340 m_elemSheet->setFinalURL(m_baseURL);
2341 if (m_mappedElementSheet)
2342 m_mappedElementSheet->setFinalURL(m_baseURL);
2343 }
2344
processBaseElement()2345 void Document::processBaseElement()
2346 {
2347 // Find the first href attribute in a base element and the first target attribute in a base element.
2348 const AtomicString* href = 0;
2349 const AtomicString* target = 0;
2350 for (Node* node = document()->firstChild(); node && (!href || !target); node = node->traverseNextNode()) {
2351 if (node->hasTagName(baseTag)) {
2352 if (!href) {
2353 const AtomicString& value = static_cast<Element*>(node)->fastGetAttribute(hrefAttr);
2354 if (!value.isNull())
2355 href = &value;
2356 }
2357 if (!target) {
2358 const AtomicString& value = static_cast<Element*>(node)->fastGetAttribute(targetAttr);
2359 if (!value.isNull())
2360 target = &value;
2361 }
2362 }
2363 }
2364
2365 // FIXME: Since this doesn't share code with completeURL it may not handle encodings correctly.
2366 KURL baseElementURL;
2367 if (href) {
2368 String strippedHref = stripLeadingAndTrailingHTMLSpaces(*href);
2369 if (!strippedHref.isEmpty())
2370 baseElementURL = KURL(url(), strippedHref);
2371 }
2372 if (m_baseElementURL != baseElementURL) {
2373 m_baseElementURL = baseElementURL;
2374 updateBaseURL();
2375 }
2376
2377 m_baseTarget = target ? *target : nullAtom;
2378 }
2379
userAgent(const KURL & url) const2380 String Document::userAgent(const KURL& url) const
2381 {
2382 return frame() ? frame()->loader()->userAgent(url) : String();
2383 }
2384
pageUserSheet()2385 CSSStyleSheet* Document::pageUserSheet()
2386 {
2387 if (m_pageUserSheet)
2388 return m_pageUserSheet.get();
2389
2390 Page* owningPage = page();
2391 if (!owningPage)
2392 return 0;
2393
2394 String userSheetText = owningPage->userStyleSheet();
2395 if (userSheetText.isEmpty())
2396 return 0;
2397
2398 // Parse the sheet and cache it.
2399 m_pageUserSheet = CSSStyleSheet::createInline(this, settings()->userStyleSheetLocation());
2400 m_pageUserSheet->setIsUserStyleSheet(true);
2401 m_pageUserSheet->parseString(userSheetText, !inQuirksMode());
2402 return m_pageUserSheet.get();
2403 }
2404
clearPageUserSheet()2405 void Document::clearPageUserSheet()
2406 {
2407 if (m_pageUserSheet) {
2408 m_pageUserSheet = 0;
2409 styleSelectorChanged(DeferRecalcStyle);
2410 }
2411 }
2412
updatePageUserSheet()2413 void Document::updatePageUserSheet()
2414 {
2415 clearPageUserSheet();
2416 if (pageUserSheet())
2417 styleSelectorChanged(RecalcStyleImmediately);
2418 }
2419
pageGroupUserSheets() const2420 const Vector<RefPtr<CSSStyleSheet> >* Document::pageGroupUserSheets() const
2421 {
2422 if (m_pageGroupUserSheetCacheValid)
2423 return m_pageGroupUserSheets.get();
2424
2425 m_pageGroupUserSheetCacheValid = true;
2426
2427 Page* owningPage = page();
2428 if (!owningPage)
2429 return 0;
2430
2431 const PageGroup& pageGroup = owningPage->group();
2432 const UserStyleSheetMap* sheetsMap = pageGroup.userStyleSheets();
2433 if (!sheetsMap)
2434 return 0;
2435
2436 UserStyleSheetMap::const_iterator end = sheetsMap->end();
2437 for (UserStyleSheetMap::const_iterator it = sheetsMap->begin(); it != end; ++it) {
2438 const UserStyleSheetVector* sheets = it->second;
2439 for (unsigned i = 0; i < sheets->size(); ++i) {
2440 const UserStyleSheet* sheet = sheets->at(i).get();
2441 if (sheet->injectedFrames() == InjectInTopFrameOnly && ownerElement())
2442 continue;
2443 if (!UserContentURLPattern::matchesPatterns(url(), sheet->whitelist(), sheet->blacklist()))
2444 continue;
2445 RefPtr<CSSStyleSheet> parsedSheet = CSSStyleSheet::createInline(const_cast<Document*>(this), sheet->url());
2446 parsedSheet->setIsUserStyleSheet(sheet->level() == UserStyleUserLevel);
2447 parsedSheet->parseString(sheet->source(), !inQuirksMode());
2448 if (!m_pageGroupUserSheets)
2449 m_pageGroupUserSheets.set(new Vector<RefPtr<CSSStyleSheet> >);
2450 m_pageGroupUserSheets->append(parsedSheet.release());
2451 }
2452 }
2453
2454 return m_pageGroupUserSheets.get();
2455 }
2456
clearPageGroupUserSheets()2457 void Document::clearPageGroupUserSheets()
2458 {
2459 m_pageGroupUserSheetCacheValid = false;
2460 if (m_pageGroupUserSheets && m_pageGroupUserSheets->size()) {
2461 m_pageGroupUserSheets->clear();
2462 styleSelectorChanged(DeferRecalcStyle);
2463 }
2464 }
2465
updatePageGroupUserSheets()2466 void Document::updatePageGroupUserSheets()
2467 {
2468 clearPageGroupUserSheets();
2469 if (pageGroupUserSheets() && pageGroupUserSheets()->size())
2470 styleSelectorChanged(RecalcStyleImmediately);
2471 }
2472
elementSheet()2473 CSSStyleSheet* Document::elementSheet()
2474 {
2475 if (!m_elemSheet)
2476 m_elemSheet = CSSStyleSheet::createInline(this, m_baseURL);
2477 return m_elemSheet.get();
2478 }
2479
mappedElementSheet()2480 CSSStyleSheet* Document::mappedElementSheet()
2481 {
2482 if (!m_mappedElementSheet)
2483 m_mappedElementSheet = CSSStyleSheet::createInline(this, m_baseURL);
2484 return m_mappedElementSheet.get();
2485 }
2486
nextNodeWithExactTabIndex(Node * start,int tabIndex,KeyboardEvent * event)2487 static Node* nextNodeWithExactTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
2488 {
2489 // Search is inclusive of start
2490 for (Node* n = start; n; n = n->traverseNextNode())
2491 if (n->isKeyboardFocusable(event) && n->tabIndex() == tabIndex)
2492 return n;
2493
2494 return 0;
2495 }
2496
previousNodeWithExactTabIndex(Node * start,int tabIndex,KeyboardEvent * event)2497 static Node* previousNodeWithExactTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
2498 {
2499 // Search is inclusive of start
2500 for (Node* n = start; n; n = n->traversePreviousNode())
2501 if (n->isKeyboardFocusable(event) && n->tabIndex() == tabIndex)
2502 return n;
2503
2504 return 0;
2505 }
2506
nextNodeWithGreaterTabIndex(Node * start,int tabIndex,KeyboardEvent * event)2507 static Node* nextNodeWithGreaterTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
2508 {
2509 // Search is inclusive of start
2510 int winningTabIndex = SHRT_MAX + 1;
2511 Node* winner = 0;
2512 for (Node* n = start; n; n = n->traverseNextNode())
2513 if (n->isKeyboardFocusable(event) && n->tabIndex() > tabIndex && n->tabIndex() < winningTabIndex) {
2514 winner = n;
2515 winningTabIndex = n->tabIndex();
2516 }
2517
2518 return winner;
2519 }
2520
previousNodeWithLowerTabIndex(Node * start,int tabIndex,KeyboardEvent * event)2521 static Node* previousNodeWithLowerTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
2522 {
2523 // Search is inclusive of start
2524 int winningTabIndex = 0;
2525 Node* winner = 0;
2526 for (Node* n = start; n; n = n->traversePreviousNode())
2527 if (n->isKeyboardFocusable(event) && n->tabIndex() < tabIndex && n->tabIndex() > winningTabIndex) {
2528 winner = n;
2529 winningTabIndex = n->tabIndex();
2530 }
2531
2532 return winner;
2533 }
2534
nextFocusableNode(Node * start,KeyboardEvent * event)2535 Node* Document::nextFocusableNode(Node* start, KeyboardEvent* event)
2536 {
2537 if (start) {
2538 // If a node is excluded from the normal tabbing cycle, the next focusable node is determined by tree order
2539 if (start->tabIndex() < 0) {
2540 for (Node* n = start->traverseNextNode(); n; n = n->traverseNextNode())
2541 if (n->isKeyboardFocusable(event) && n->tabIndex() >= 0)
2542 return n;
2543 }
2544
2545 // First try to find a node with the same tabindex as start that comes after start in the document.
2546 if (Node* winner = nextNodeWithExactTabIndex(start->traverseNextNode(), start->tabIndex(), event))
2547 return winner;
2548
2549 if (!start->tabIndex())
2550 // We've reached the last node in the document with a tabindex of 0. This is the end of the tabbing order.
2551 return 0;
2552 }
2553
2554 // Look for the first node in the document that:
2555 // 1) has the lowest tabindex that is higher than start's tabindex (or 0, if start is null), and
2556 // 2) comes first in the document, if there's a tie.
2557 if (Node* winner = nextNodeWithGreaterTabIndex(this, start ? start->tabIndex() : 0, event))
2558 return winner;
2559
2560 // There are no nodes with a tabindex greater than start's tabindex,
2561 // so find the first node with a tabindex of 0.
2562 return nextNodeWithExactTabIndex(this, 0, event);
2563 }
2564
previousFocusableNode(Node * start,KeyboardEvent * event)2565 Node* Document::previousFocusableNode(Node* start, KeyboardEvent* event)
2566 {
2567 Node* last;
2568 for (last = this; last->lastChild(); last = last->lastChild()) { }
2569
2570 // First try to find the last node in the document that comes before start and has the same tabindex as start.
2571 // If start is null, find the last node in the document with a tabindex of 0.
2572 Node* startingNode;
2573 int startingTabIndex;
2574 if (start) {
2575 startingNode = start->traversePreviousNode();
2576 startingTabIndex = start->tabIndex();
2577 } else {
2578 startingNode = last;
2579 startingTabIndex = 0;
2580 }
2581
2582 // However, if a node is excluded from the normal tabbing cycle, the previous focusable node is determined by tree order
2583 if (startingTabIndex < 0) {
2584 for (Node* n = startingNode; n; n = n->traversePreviousNode())
2585 if (n->isKeyboardFocusable(event) && n->tabIndex() >= 0)
2586 return n;
2587 }
2588
2589 if (Node* winner = previousNodeWithExactTabIndex(startingNode, startingTabIndex, event))
2590 return winner;
2591
2592 // There are no nodes before start with the same tabindex as start, so look for a node that:
2593 // 1) has the highest non-zero tabindex (that is less than start's tabindex), and
2594 // 2) comes last in the document, if there's a tie.
2595 startingTabIndex = (start && start->tabIndex()) ? start->tabIndex() : SHRT_MAX;
2596 return previousNodeWithLowerTabIndex(last, startingTabIndex, event);
2597 }
2598
nodeAbsIndex(Node * node)2599 int Document::nodeAbsIndex(Node *node)
2600 {
2601 ASSERT(node->document() == this);
2602
2603 int absIndex = 0;
2604 for (Node* n = node; n && n != this; n = n->traversePreviousNode())
2605 absIndex++;
2606 return absIndex;
2607 }
2608
nodeWithAbsIndex(int absIndex)2609 Node* Document::nodeWithAbsIndex(int absIndex)
2610 {
2611 Node* n = this;
2612 for (int i = 0; n && (i < absIndex); i++)
2613 n = n->traverseNextNode();
2614 return n;
2615 }
2616
2617 #ifdef ANDROID_META_SUPPORT
processMetadataSettings(const String & content)2618 void Document::processMetadataSettings(const String& content)
2619 {
2620 ASSERT(!content.isNull());
2621 processArguments(content, 0, 0);
2622 }
2623 #endif
2624
processHttpEquiv(const String & equiv,const String & content)2625 void Document::processHttpEquiv(const String& equiv, const String& content)
2626 {
2627 ASSERT(!equiv.isNull() && !content.isNull());
2628
2629 Frame* frame = this->frame();
2630
2631 if (equalIgnoringCase(equiv, "default-style")) {
2632 // The preferred style set has been overridden as per section
2633 // 14.3.2 of the HTML4.0 specification. We need to update the
2634 // sheet used variable and then update our style selector.
2635 // For more info, see the test at:
2636 // http://www.hixie.ch/tests/evil/css/import/main/preferred.html
2637 // -dwh
2638 m_selectedStylesheetSet = content;
2639 m_preferredStylesheetSet = content;
2640 styleSelectorChanged(DeferRecalcStyle);
2641 } else if (equalIgnoringCase(equiv, "refresh")) {
2642 double delay;
2643 String url;
2644 if (frame && parseHTTPRefresh(content, true, delay, url)) {
2645 if (url.isEmpty())
2646 url = m_url.string();
2647 else
2648 url = completeURL(url).string();
2649 frame->navigationScheduler()->scheduleRedirect(delay, url);
2650 }
2651 } else if (equalIgnoringCase(equiv, "set-cookie")) {
2652 // FIXME: make setCookie work on XML documents too; e.g. in case of <html:meta .....>
2653 if (isHTMLDocument()) {
2654 ExceptionCode ec; // Exception (for sandboxed documents) ignored.
2655 static_cast<HTMLDocument*>(this)->setCookie(content, ec);
2656 }
2657 } else if (equalIgnoringCase(equiv, "content-language"))
2658 setContentLanguage(content);
2659 else if (equalIgnoringCase(equiv, "x-dns-prefetch-control"))
2660 parseDNSPrefetchControlHeader(content);
2661 else if (equalIgnoringCase(equiv, "x-frame-options")) {
2662 if (frame) {
2663 FrameLoader* frameLoader = frame->loader();
2664 if (frameLoader->shouldInterruptLoadForXFrameOptions(content, url())) {
2665 frameLoader->stopAllLoaders();
2666 frame->navigationScheduler()->scheduleLocationChange(securityOrigin(), blankURL(), String());
2667
2668 DEFINE_STATIC_LOCAL(String, consoleMessage, ("Refused to display document because display forbidden by X-Frame-Options.\n"));
2669 frame->domWindow()->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, consoleMessage, 1, String());
2670 }
2671 }
2672 } else if (equalIgnoringCase(equiv, "x-webkit-csp"))
2673 contentSecurityPolicy()->didReceiveHeader(content);
2674 }
2675
2676 // Though isspace() considers \t and \v to be whitespace, Win IE doesn't.
isSeparator(UChar c)2677 static bool isSeparator(UChar c)
2678 {
2679 return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '=' || c == ',' || c == '\0';
2680 }
2681
processArguments(const String & features,void * data,ArgumentsCallback callback)2682 void Document::processArguments(const String& features, void* data, ArgumentsCallback callback)
2683 {
2684 // Tread lightly in this code -- it was specifically designed to mimic Win IE's parsing behavior.
2685 int keyBegin, keyEnd;
2686 int valueBegin, valueEnd;
2687
2688 int i = 0;
2689 int length = features.length();
2690 String buffer = features.lower();
2691 while (i < length) {
2692 // skip to first non-separator, but don't skip past the end of the string
2693 while (isSeparator(buffer[i])) {
2694 if (i >= length)
2695 break;
2696 i++;
2697 }
2698 keyBegin = i;
2699
2700 // skip to first separator
2701 while (!isSeparator(buffer[i]))
2702 i++;
2703 keyEnd = i;
2704
2705 // skip to first '=', but don't skip past a ',' or the end of the string
2706 while (buffer[i] != '=') {
2707 if (buffer[i] == ',' || i >= length)
2708 break;
2709 i++;
2710 }
2711
2712 // skip to first non-separator, but don't skip past a ',' or the end of the string
2713 while (isSeparator(buffer[i])) {
2714 if (buffer[i] == ',' || i >= length)
2715 break;
2716 i++;
2717 }
2718 valueBegin = i;
2719
2720 // skip to first separator
2721 while (!isSeparator(buffer[i]))
2722 i++;
2723 valueEnd = i;
2724
2725 ASSERT(i <= length);
2726
2727 String keyString = buffer.substring(keyBegin, keyEnd - keyBegin);
2728 String valueString = buffer.substring(valueBegin, valueEnd - valueBegin);
2729 #ifdef ANDROID_META_SUPPORT
2730 if (frame())
2731 frame()->settings()->setMetadataSettings(keyString, valueString);
2732 #endif
2733 if (callback && data)
2734 callback(keyString, valueString, this, data);
2735 }
2736 }
2737
processViewport(const String & features)2738 void Document::processViewport(const String& features)
2739 {
2740 ASSERT(!features.isNull());
2741
2742 m_viewportArguments = ViewportArguments();
2743 processArguments(features, (void*)&m_viewportArguments, &setViewportFeature);
2744
2745 Frame* frame = this->frame();
2746 if (!frame || !frame->page())
2747 return;
2748
2749 frame->page()->updateViewportArguments();
2750 }
2751
prepareMouseEvent(const HitTestRequest & request,const IntPoint & documentPoint,const PlatformMouseEvent & event)2752 MouseEventWithHitTestResults Document::prepareMouseEvent(const HitTestRequest& request, const IntPoint& documentPoint, const PlatformMouseEvent& event)
2753 {
2754 ASSERT(!renderer() || renderer()->isRenderView());
2755
2756 if (!renderer())
2757 return MouseEventWithHitTestResults(event, HitTestResult(IntPoint()));
2758
2759 HitTestResult result(documentPoint);
2760 renderView()->layer()->hitTest(request, result);
2761
2762 if (!request.readOnly())
2763 updateStyleIfNeeded();
2764
2765 return MouseEventWithHitTestResults(event, result);
2766 }
2767
2768 // DOM Section 1.1.1
childTypeAllowed(NodeType type) const2769 bool Document::childTypeAllowed(NodeType type) const
2770 {
2771 switch (type) {
2772 case ATTRIBUTE_NODE:
2773 case CDATA_SECTION_NODE:
2774 case DOCUMENT_FRAGMENT_NODE:
2775 case DOCUMENT_NODE:
2776 case ENTITY_NODE:
2777 case ENTITY_REFERENCE_NODE:
2778 case NOTATION_NODE:
2779 case TEXT_NODE:
2780 case XPATH_NAMESPACE_NODE:
2781 return false;
2782 case COMMENT_NODE:
2783 case PROCESSING_INSTRUCTION_NODE:
2784 return true;
2785 case DOCUMENT_TYPE_NODE:
2786 case ELEMENT_NODE:
2787 // Documents may contain no more than one of each of these.
2788 // (One Element and one DocumentType.)
2789 for (Node* c = firstChild(); c; c = c->nextSibling())
2790 if (c->nodeType() == type)
2791 return false;
2792 return true;
2793 }
2794 return false;
2795 }
2796
canReplaceChild(Node * newChild,Node * oldChild)2797 bool Document::canReplaceChild(Node* newChild, Node* oldChild)
2798 {
2799 if (!oldChild)
2800 // ContainerNode::replaceChild will raise a NOT_FOUND_ERR.
2801 return true;
2802
2803 if (oldChild->nodeType() == newChild->nodeType())
2804 return true;
2805
2806 int numDoctypes = 0;
2807 int numElements = 0;
2808
2809 // First, check how many doctypes and elements we have, not counting
2810 // the child we're about to remove.
2811 for (Node* c = firstChild(); c; c = c->nextSibling()) {
2812 if (c == oldChild)
2813 continue;
2814
2815 switch (c->nodeType()) {
2816 case DOCUMENT_TYPE_NODE:
2817 numDoctypes++;
2818 break;
2819 case ELEMENT_NODE:
2820 numElements++;
2821 break;
2822 default:
2823 break;
2824 }
2825 }
2826
2827 // Then, see how many doctypes and elements might be added by the new child.
2828 if (newChild->nodeType() == DOCUMENT_FRAGMENT_NODE) {
2829 for (Node* c = firstChild(); c; c = c->nextSibling()) {
2830 switch (c->nodeType()) {
2831 case ATTRIBUTE_NODE:
2832 case CDATA_SECTION_NODE:
2833 case DOCUMENT_FRAGMENT_NODE:
2834 case DOCUMENT_NODE:
2835 case ENTITY_NODE:
2836 case ENTITY_REFERENCE_NODE:
2837 case NOTATION_NODE:
2838 case TEXT_NODE:
2839 case XPATH_NAMESPACE_NODE:
2840 return false;
2841 case COMMENT_NODE:
2842 case PROCESSING_INSTRUCTION_NODE:
2843 break;
2844 case DOCUMENT_TYPE_NODE:
2845 numDoctypes++;
2846 break;
2847 case ELEMENT_NODE:
2848 numElements++;
2849 break;
2850 }
2851 }
2852 } else {
2853 switch (newChild->nodeType()) {
2854 case ATTRIBUTE_NODE:
2855 case CDATA_SECTION_NODE:
2856 case DOCUMENT_FRAGMENT_NODE:
2857 case DOCUMENT_NODE:
2858 case ENTITY_NODE:
2859 case ENTITY_REFERENCE_NODE:
2860 case NOTATION_NODE:
2861 case TEXT_NODE:
2862 case XPATH_NAMESPACE_NODE:
2863 return false;
2864 case COMMENT_NODE:
2865 case PROCESSING_INSTRUCTION_NODE:
2866 return true;
2867 case DOCUMENT_TYPE_NODE:
2868 numDoctypes++;
2869 break;
2870 case ELEMENT_NODE:
2871 numElements++;
2872 break;
2873 }
2874 }
2875
2876 if (numElements > 1 || numDoctypes > 1)
2877 return false;
2878
2879 return true;
2880 }
2881
cloneNode(bool)2882 PassRefPtr<Node> Document::cloneNode(bool /*deep*/)
2883 {
2884 // Spec says cloning Document nodes is "implementation dependent"
2885 // so we do not support it...
2886 return 0;
2887 }
2888
styleSheets()2889 StyleSheetList* Document::styleSheets()
2890 {
2891 return m_styleSheets.get();
2892 }
2893
preferredStylesheetSet() const2894 String Document::preferredStylesheetSet() const
2895 {
2896 return m_preferredStylesheetSet;
2897 }
2898
selectedStylesheetSet() const2899 String Document::selectedStylesheetSet() const
2900 {
2901 return m_selectedStylesheetSet;
2902 }
2903
setSelectedStylesheetSet(const String & aString)2904 void Document::setSelectedStylesheetSet(const String& aString)
2905 {
2906 m_selectedStylesheetSet = aString;
2907 styleSelectorChanged(DeferRecalcStyle);
2908 }
2909
2910 // This method is called whenever a top-level stylesheet has finished loading.
removePendingSheet()2911 void Document::removePendingSheet()
2912 {
2913 // Make sure we knew this sheet was pending, and that our count isn't out of sync.
2914 ASSERT(m_pendingStylesheets > 0);
2915
2916 m_pendingStylesheets--;
2917
2918 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2919 if (!ownerElement())
2920 printf("Stylesheet loaded at time %d. %d stylesheets still remain.\n", elapsedTime(), m_pendingStylesheets);
2921 #endif
2922
2923 if (m_pendingStylesheets)
2924 return;
2925
2926 styleSelectorChanged(RecalcStyleImmediately);
2927
2928 if (ScriptableDocumentParser* parser = scriptableDocumentParser())
2929 parser->executeScriptsWaitingForStylesheets();
2930
2931 if (m_gotoAnchorNeededAfterStylesheetsLoad && view())
2932 view()->scrollToFragment(m_url);
2933 }
2934
styleSelectorChanged(StyleSelectorUpdateFlag updateFlag)2935 void Document::styleSelectorChanged(StyleSelectorUpdateFlag updateFlag)
2936 {
2937 // Don't bother updating, since we haven't loaded all our style info yet
2938 // and haven't calculated the style selector for the first time.
2939 if (!attached() || (!m_didCalculateStyleSelector && !haveStylesheetsLoaded()))
2940 return;
2941
2942 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2943 if (!ownerElement())
2944 printf("Beginning update of style selector at time %d.\n", elapsedTime());
2945 #endif
2946
2947 recalcStyleSelector();
2948
2949 if (updateFlag == DeferRecalcStyle) {
2950 scheduleForcedStyleRecalc();
2951 return;
2952 }
2953
2954 if (didLayoutWithPendingStylesheets() && m_pendingStylesheets <= 0) {
2955 m_pendingSheetLayout = IgnoreLayoutWithPendingSheets;
2956 if (renderer())
2957 renderer()->repaint();
2958 }
2959
2960 // This recalcStyle initiates a new recalc cycle. We need to bracket it to
2961 // make sure animations get the correct update time
2962 if (m_frame)
2963 m_frame->animation()->beginAnimationUpdate();
2964 recalcStyle(Force);
2965 if (m_frame)
2966 m_frame->animation()->endAnimationUpdate();
2967
2968 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
2969 if (!ownerElement())
2970 printf("Finished update of style selector at time %d\n", elapsedTime());
2971 #endif
2972
2973 if (renderer()) {
2974 renderer()->setNeedsLayoutAndPrefWidthsRecalc();
2975 if (view())
2976 view()->scheduleRelayout();
2977 }
2978
2979 if (m_mediaQueryMatcher)
2980 m_mediaQueryMatcher->styleSelectorChanged();
2981 }
2982
addStyleSheetCandidateNode(Node * node,bool createdByParser)2983 void Document::addStyleSheetCandidateNode(Node* node, bool createdByParser)
2984 {
2985 if (!node->inDocument())
2986 return;
2987
2988 // Until the <body> exists, we have no choice but to compare document positions,
2989 // since styles outside of the body and head continue to be shunted into the head
2990 // (and thus can shift to end up before dynamically added DOM content that is also
2991 // outside the body).
2992 if ((createdByParser && body()) || m_styleSheetCandidateNodes.isEmpty()) {
2993 m_styleSheetCandidateNodes.add(node);
2994 return;
2995 }
2996
2997 // Determine an appropriate insertion point.
2998 StyleSheetCandidateListHashSet::iterator begin = m_styleSheetCandidateNodes.begin();
2999 StyleSheetCandidateListHashSet::iterator end = m_styleSheetCandidateNodes.end();
3000 StyleSheetCandidateListHashSet::iterator it = end;
3001 Node* followingNode = 0;
3002 do {
3003 --it;
3004 Node* n = *it;
3005 unsigned short position = n->compareDocumentPosition(node);
3006 if (position == DOCUMENT_POSITION_FOLLOWING) {
3007 m_styleSheetCandidateNodes.insertBefore(followingNode, node);
3008 return;
3009 }
3010 followingNode = n;
3011 } while (it != begin);
3012
3013 m_styleSheetCandidateNodes.insertBefore(followingNode, node);
3014 }
3015
removeStyleSheetCandidateNode(Node * node)3016 void Document::removeStyleSheetCandidateNode(Node* node)
3017 {
3018 m_styleSheetCandidateNodes.remove(node);
3019 }
3020
recalcStyleSelector()3021 void Document::recalcStyleSelector()
3022 {
3023 if (m_inStyleRecalc) {
3024 // SVG <use> element may manage to invalidate style selector in the middle of a style recalc.
3025 // https://bugs.webkit.org/show_bug.cgi?id=54344
3026 // FIXME: This should be fixed in SVG and this code replaced with ASSERT(!m_inStyleRecalc).
3027 m_hasDirtyStyleSelector = true;
3028 scheduleForcedStyleRecalc();
3029 return;
3030 }
3031 if (!renderer() || !attached())
3032 return;
3033
3034 StyleSheetVector sheets;
3035
3036 bool matchAuthorAndUserStyles = true;
3037 if (Settings* settings = this->settings())
3038 matchAuthorAndUserStyles = settings->authorAndUserStylesEnabled();
3039
3040 StyleSheetCandidateListHashSet::iterator begin = m_styleSheetCandidateNodes.begin();
3041 StyleSheetCandidateListHashSet::iterator end = m_styleSheetCandidateNodes.end();
3042 if (!matchAuthorAndUserStyles)
3043 end = begin;
3044 for (StyleSheetCandidateListHashSet::iterator it = begin; it != end; ++it) {
3045 Node* n = *it;
3046
3047 StyleSheet* sheet = 0;
3048
3049 if (n->nodeType() == PROCESSING_INSTRUCTION_NODE) {
3050 // Processing instruction (XML documents only).
3051 // We don't support linking to embedded CSS stylesheets, see <https://bugs.webkit.org/show_bug.cgi?id=49281> for discussion.
3052 ProcessingInstruction* pi = static_cast<ProcessingInstruction*>(n);
3053 sheet = pi->sheet();
3054 #if ENABLE(XSLT)
3055 // Don't apply XSL transforms to already transformed documents -- <rdar://problem/4132806>
3056 if (pi->isXSL() && !transformSourceDocument()) {
3057 // Don't apply XSL transforms until loading is finished.
3058 if (!parsing())
3059 applyXSLTransform(pi);
3060 return;
3061 }
3062 #endif
3063 } else if ((n->isHTMLElement() && (n->hasTagName(linkTag) || n->hasTagName(styleTag)))
3064 #if ENABLE(SVG)
3065 || (n->isSVGElement() && n->hasTagName(SVGNames::styleTag))
3066 #endif
3067 ) {
3068 Element* e = static_cast<Element*>(n);
3069 AtomicString title = e->getAttribute(titleAttr);
3070 bool enabledViaScript = false;
3071 if (e->hasLocalName(linkTag)) {
3072 // <LINK> element
3073 HTMLLinkElement* linkElement = static_cast<HTMLLinkElement*>(n);
3074 if (linkElement->isDisabled())
3075 continue;
3076 enabledViaScript = linkElement->isEnabledViaScript();
3077 if (linkElement->isLoading()) {
3078 // it is loading but we should still decide which style sheet set to use
3079 if (!enabledViaScript && !title.isEmpty() && m_preferredStylesheetSet.isEmpty()) {
3080 const AtomicString& rel = e->getAttribute(relAttr);
3081 if (!rel.contains("alternate")) {
3082 m_preferredStylesheetSet = title;
3083 m_selectedStylesheetSet = title;
3084 }
3085 }
3086 continue;
3087 }
3088 if (!linkElement->sheet())
3089 title = nullAtom;
3090 }
3091
3092 // Get the current preferred styleset. This is the
3093 // set of sheets that will be enabled.
3094 #if ENABLE(SVG)
3095 if (n->isSVGElement() && n->hasTagName(SVGNames::styleTag))
3096 sheet = static_cast<SVGStyleElement*>(n)->sheet();
3097 else
3098 #endif
3099 if (e->hasLocalName(linkTag))
3100 sheet = static_cast<HTMLLinkElement*>(n)->sheet();
3101 else
3102 // <STYLE> element
3103 sheet = static_cast<HTMLStyleElement*>(n)->sheet();
3104
3105 // Check to see if this sheet belongs to a styleset
3106 // (thus making it PREFERRED or ALTERNATE rather than
3107 // PERSISTENT).
3108 if (!enabledViaScript && !title.isEmpty()) {
3109 // Yes, we have a title.
3110 if (m_preferredStylesheetSet.isEmpty()) {
3111 // No preferred set has been established. If
3112 // we are NOT an alternate sheet, then establish
3113 // us as the preferred set. Otherwise, just ignore
3114 // this sheet.
3115 AtomicString rel = e->getAttribute(relAttr);
3116 if (e->hasLocalName(styleTag) || !rel.contains("alternate"))
3117 m_preferredStylesheetSet = m_selectedStylesheetSet = title;
3118 }
3119
3120 if (title != m_preferredStylesheetSet)
3121 sheet = 0;
3122 }
3123 }
3124
3125 if (sheet)
3126 sheets.append(sheet);
3127 }
3128
3129 m_styleSheets->swap(sheets);
3130
3131 m_styleSelector.clear();
3132 m_didCalculateStyleSelector = true;
3133 m_hasDirtyStyleSelector = false;
3134 }
3135
setHoverNode(PassRefPtr<Node> newHoverNode)3136 void Document::setHoverNode(PassRefPtr<Node> newHoverNode)
3137 {
3138 m_hoverNode = newHoverNode;
3139 }
3140
setActiveNode(PassRefPtr<Node> newActiveNode)3141 void Document::setActiveNode(PassRefPtr<Node> newActiveNode)
3142 {
3143 m_activeNode = newActiveNode;
3144 }
3145
focusedNodeRemoved()3146 void Document::focusedNodeRemoved()
3147 {
3148 setFocusedNode(0);
3149 }
3150
removeFocusedNodeOfSubtree(Node * node,bool amongChildrenOnly)3151 void Document::removeFocusedNodeOfSubtree(Node* node, bool amongChildrenOnly)
3152 {
3153 if (!m_focusedNode || this->inPageCache()) // If the document is in the page cache, then we don't need to clear out the focused node.
3154 return;
3155
3156 bool nodeInSubtree = false;
3157 if (amongChildrenOnly)
3158 nodeInSubtree = m_focusedNode->isDescendantOf(node);
3159 else
3160 nodeInSubtree = (m_focusedNode == node) || m_focusedNode->isDescendantOf(node);
3161
3162 if (nodeInSubtree)
3163 document()->focusedNodeRemoved();
3164 }
3165
hoveredNodeDetached(Node * node)3166 void Document::hoveredNodeDetached(Node* node)
3167 {
3168 if (!m_hoverNode || (node != m_hoverNode && (!m_hoverNode->isTextNode() || node != m_hoverNode->parentNode())))
3169 return;
3170
3171 m_hoverNode = node->parentNode();
3172 while (m_hoverNode && !m_hoverNode->renderer())
3173 m_hoverNode = m_hoverNode->parentNode();
3174 if (frame())
3175 frame()->eventHandler()->scheduleHoverStateUpdate();
3176 }
3177
activeChainNodeDetached(Node * node)3178 void Document::activeChainNodeDetached(Node* node)
3179 {
3180 if (!m_activeNode || (node != m_activeNode && (!m_activeNode->isTextNode() || node != m_activeNode->parentNode())))
3181 return;
3182
3183 m_activeNode = node->parentNode();
3184 while (m_activeNode && !m_activeNode->renderer())
3185 m_activeNode = m_activeNode->parentNode();
3186 }
3187
3188 #if ENABLE(DASHBOARD_SUPPORT)
dashboardRegions() const3189 const Vector<DashboardRegionValue>& Document::dashboardRegions() const
3190 {
3191 return m_dashboardRegions;
3192 }
3193
setDashboardRegions(const Vector<DashboardRegionValue> & regions)3194 void Document::setDashboardRegions(const Vector<DashboardRegionValue>& regions)
3195 {
3196 m_dashboardRegions = regions;
3197 setDashboardRegionsDirty(false);
3198 }
3199 #endif
3200
setFocusedNode(PassRefPtr<Node> newFocusedNode)3201 bool Document::setFocusedNode(PassRefPtr<Node> newFocusedNode)
3202 {
3203 // Make sure newFocusedNode is actually in this document
3204 if (newFocusedNode && (newFocusedNode->document() != this))
3205 return true;
3206
3207 if (m_focusedNode == newFocusedNode)
3208 return true;
3209
3210 if (m_inPageCache)
3211 return false;
3212
3213 bool focusChangeBlocked = false;
3214 RefPtr<Node> oldFocusedNode = m_focusedNode;
3215 m_focusedNode = 0;
3216
3217 // Remove focus from the existing focus node (if any)
3218 if (oldFocusedNode && !oldFocusedNode->inDetach()) {
3219 if (oldFocusedNode->active())
3220 oldFocusedNode->setActive(false);
3221
3222 oldFocusedNode->setFocus(false);
3223
3224 // Dispatch a change event for text fields or textareas that have been edited
3225 if (oldFocusedNode->isElementNode()) {
3226 Element* element = static_cast<Element*>(oldFocusedNode.get());
3227 if (element->wasChangedSinceLastFormControlChangeEvent())
3228 element->dispatchFormControlChangeEvent();
3229 }
3230
3231 // Dispatch the blur event and let the node do any other blur related activities (important for text fields)
3232 oldFocusedNode->dispatchBlurEvent();
3233
3234 if (m_focusedNode) {
3235 // handler shifted focus
3236 focusChangeBlocked = true;
3237 newFocusedNode = 0;
3238 }
3239
3240 oldFocusedNode->dispatchUIEvent(eventNames().focusoutEvent, 0, 0); // DOM level 3 name for the bubbling blur event.
3241 // FIXME: We should remove firing DOMFocusOutEvent event when we are sure no content depends
3242 // on it, probably when <rdar://problem/8503958> is resolved.
3243 oldFocusedNode->dispatchUIEvent(eventNames().DOMFocusOutEvent, 0, 0); // DOM level 2 name for compatibility.
3244
3245 if (m_focusedNode) {
3246 // handler shifted focus
3247 focusChangeBlocked = true;
3248 newFocusedNode = 0;
3249 }
3250 if (oldFocusedNode == this && oldFocusedNode->hasOneRef())
3251 return true;
3252
3253 if (oldFocusedNode == oldFocusedNode->rootEditableElement())
3254 frame()->editor()->didEndEditing();
3255
3256 if (view()) {
3257 Widget* oldWidget = widgetForNode(oldFocusedNode.get());
3258 if (oldWidget)
3259 oldWidget->setFocus(false);
3260 else
3261 view()->setFocus(false);
3262 }
3263 }
3264
3265 if (newFocusedNode) {
3266 if (newFocusedNode == newFocusedNode->rootEditableElement() && !acceptsEditingFocus(newFocusedNode.get())) {
3267 // delegate blocks focus change
3268 focusChangeBlocked = true;
3269 goto SetFocusedNodeDone;
3270 }
3271 // Set focus on the new node
3272 m_focusedNode = newFocusedNode.get();
3273
3274 // Dispatch the focus event and let the node do any other focus related activities (important for text fields)
3275 m_focusedNode->dispatchFocusEvent();
3276
3277 if (m_focusedNode != newFocusedNode) {
3278 // handler shifted focus
3279 focusChangeBlocked = true;
3280 goto SetFocusedNodeDone;
3281 }
3282
3283 m_focusedNode->dispatchUIEvent(eventNames().focusinEvent, 0, 0); // DOM level 3 bubbling focus event.
3284 // FIXME: We should remove firing DOMFocusInEvent event when we are sure no content depends
3285 // on it, probably when <rdar://problem/8503958> is resolved.
3286 m_focusedNode->dispatchUIEvent(eventNames().DOMFocusInEvent, 0, 0); // DOM level 2 for compatibility.
3287
3288 if (m_focusedNode != newFocusedNode) {
3289 // handler shifted focus
3290 focusChangeBlocked = true;
3291 goto SetFocusedNodeDone;
3292 }
3293 m_focusedNode->setFocus(true);
3294
3295 if (m_focusedNode == m_focusedNode->rootEditableElement())
3296 frame()->editor()->didBeginEditing();
3297
3298 // eww, I suck. set the qt focus correctly
3299 // ### find a better place in the code for this
3300 if (view()) {
3301 Widget* focusWidget = widgetForNode(m_focusedNode.get());
3302 if (focusWidget) {
3303 // Make sure a widget has the right size before giving it focus.
3304 // Otherwise, we are testing edge cases of the Widget code.
3305 // Specifically, in WebCore this does not work well for text fields.
3306 updateLayout();
3307 // Re-get the widget in case updating the layout changed things.
3308 focusWidget = widgetForNode(m_focusedNode.get());
3309 }
3310 if (focusWidget)
3311 focusWidget->setFocus(true);
3312 else
3313 view()->setFocus(true);
3314 }
3315 }
3316
3317 #if PLATFORM(MAC) || PLATFORM(WIN) || PLATFORM(GTK) || PLATFORM(CHROMIUM)
3318 if (!focusChangeBlocked && m_focusedNode && AXObjectCache::accessibilityEnabled()) {
3319 RenderObject* oldFocusedRenderer = 0;
3320 RenderObject* newFocusedRenderer = 0;
3321
3322 if (oldFocusedNode)
3323 oldFocusedRenderer = oldFocusedNode->renderer();
3324 if (newFocusedNode)
3325 newFocusedRenderer = newFocusedNode->renderer();
3326
3327 axObjectCache()->handleFocusedUIElementChanged(oldFocusedRenderer, newFocusedRenderer);
3328 }
3329 #endif
3330 if (!focusChangeBlocked)
3331 page()->chrome()->focusedNodeChanged(m_focusedNode.get());
3332
3333 SetFocusedNodeDone:
3334 updateStyleIfNeeded();
3335 return !focusChangeBlocked;
3336 }
3337
getFocusableNodes(Vector<RefPtr<Node>> & nodes)3338 void Document::getFocusableNodes(Vector<RefPtr<Node> >& nodes)
3339 {
3340 updateLayout();
3341
3342 for (Node* node = firstChild(); node; node = node->traverseNextNode()) {
3343 if (node->isFocusable())
3344 nodes.append(node);
3345 }
3346 }
3347
setCSSTarget(Element * n)3348 void Document::setCSSTarget(Element* n)
3349 {
3350 if (m_cssTarget)
3351 m_cssTarget->setNeedsStyleRecalc();
3352 m_cssTarget = n;
3353 if (n)
3354 n->setNeedsStyleRecalc();
3355 }
3356
attachNodeIterator(NodeIterator * ni)3357 void Document::attachNodeIterator(NodeIterator* ni)
3358 {
3359 m_nodeIterators.add(ni);
3360 }
3361
detachNodeIterator(NodeIterator * ni)3362 void Document::detachNodeIterator(NodeIterator* ni)
3363 {
3364 // The node iterator can be detached without having been attached if its root node didn't have a document
3365 // when the iterator was created, but has it now.
3366 m_nodeIterators.remove(ni);
3367 }
3368
moveNodeIteratorsToNewDocument(Node * node,Document * newDocument)3369 void Document::moveNodeIteratorsToNewDocument(Node* node, Document* newDocument)
3370 {
3371 HashSet<NodeIterator*> nodeIteratorsList = m_nodeIterators;
3372 HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = nodeIteratorsList.end();
3373 for (HashSet<NodeIterator*>::const_iterator it = nodeIteratorsList.begin(); it != nodeIteratorsEnd; ++it) {
3374 if ((*it)->root() == node) {
3375 detachNodeIterator(*it);
3376 newDocument->attachNodeIterator(*it);
3377 }
3378 }
3379 }
3380
nodeChildrenChanged(ContainerNode * container)3381 void Document::nodeChildrenChanged(ContainerNode* container)
3382 {
3383 if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
3384 HashSet<Range*>::const_iterator end = m_ranges.end();
3385 for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
3386 (*it)->nodeChildrenChanged(container);
3387 }
3388 }
3389
nodeChildrenWillBeRemoved(ContainerNode * container)3390 void Document::nodeChildrenWillBeRemoved(ContainerNode* container)
3391 {
3392 if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
3393 HashSet<Range*>::const_iterator end = m_ranges.end();
3394 for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
3395 (*it)->nodeChildrenWillBeRemoved(container);
3396 }
3397
3398 HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
3399 for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it) {
3400 for (Node* n = container->firstChild(); n; n = n->nextSibling())
3401 (*it)->nodeWillBeRemoved(n);
3402 }
3403
3404 if (Frame* frame = this->frame()) {
3405 for (Node* n = container->firstChild(); n; n = n->nextSibling()) {
3406 frame->selection()->nodeWillBeRemoved(n);
3407 frame->page()->dragCaretController()->nodeWillBeRemoved(n);
3408 }
3409 }
3410 }
3411
nodeWillBeRemoved(Node * n)3412 void Document::nodeWillBeRemoved(Node* n)
3413 {
3414 HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
3415 for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it)
3416 (*it)->nodeWillBeRemoved(n);
3417
3418 if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
3419 HashSet<Range*>::const_iterator rangesEnd = m_ranges.end();
3420 for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != rangesEnd; ++it)
3421 (*it)->nodeWillBeRemoved(n);
3422 }
3423
3424 if (Frame* frame = this->frame()) {
3425 frame->selection()->nodeWillBeRemoved(n);
3426 frame->page()->dragCaretController()->nodeWillBeRemoved(n);
3427 }
3428
3429 #if ENABLE(FULLSCREEN_API)
3430 // If the current full screen element or any of its ancestors is removed, set the current
3431 // full screen element to the document root, and fire a fullscreenchange event to inform
3432 // clients of the DOM.
3433 ASSERT(n);
3434 if (n->contains(m_fullScreenElement.get())) {
3435 ASSERT(n != documentElement());
3436
3437 if (m_fullScreenRenderer)
3438 m_fullScreenRenderer->remove();
3439
3440 setFullScreenRenderer(0);
3441 m_fullScreenElement = documentElement();
3442 recalcStyle(Force);
3443 m_fullScreenChangeDelayTimer.startOneShot(0);
3444 }
3445 #endif
3446 }
3447
textInserted(Node * text,unsigned offset,unsigned length)3448 void Document::textInserted(Node* text, unsigned offset, unsigned length)
3449 {
3450 if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
3451 HashSet<Range*>::const_iterator end = m_ranges.end();
3452 for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
3453 (*it)->textInserted(text, offset, length);
3454 }
3455
3456 // Update the markers for spelling and grammar checking.
3457 m_markers->shiftMarkers(text, offset, length);
3458 }
3459
textRemoved(Node * text,unsigned offset,unsigned length)3460 void Document::textRemoved(Node* text, unsigned offset, unsigned length)
3461 {
3462 if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
3463 HashSet<Range*>::const_iterator end = m_ranges.end();
3464 for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
3465 (*it)->textRemoved(text, offset, length);
3466 }
3467
3468 // Update the markers for spelling and grammar checking.
3469 m_markers->removeMarkers(text, offset, length);
3470 m_markers->shiftMarkers(text, offset + length, 0 - length);
3471 }
3472
textNodesMerged(Text * oldNode,unsigned offset)3473 void Document::textNodesMerged(Text* oldNode, unsigned offset)
3474 {
3475 if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
3476 NodeWithIndex oldNodeWithIndex(oldNode);
3477 HashSet<Range*>::const_iterator end = m_ranges.end();
3478 for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
3479 (*it)->textNodesMerged(oldNodeWithIndex, offset);
3480 }
3481
3482 // FIXME: This should update markers for spelling and grammar checking.
3483 }
3484
textNodeSplit(Text * oldNode)3485 void Document::textNodeSplit(Text* oldNode)
3486 {
3487 if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
3488 HashSet<Range*>::const_iterator end = m_ranges.end();
3489 for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
3490 (*it)->textNodeSplit(oldNode);
3491 }
3492
3493 // FIXME: This should update markers for spelling and grammar checking.
3494 }
3495
3496 // FIXME: eventually, this should return a DOMWindow stored in the document.
domWindow() const3497 DOMWindow* Document::domWindow() const
3498 {
3499 if (!frame())
3500 return 0;
3501
3502 // The m_frame pointer is not (not always?) zeroed out when the document is put into b/f cache, so the frame can hold an unrelated document/window pair.
3503 // FIXME: We should always zero out the frame pointer on navigation to avoid accidentally accessing the new frame content.
3504 if (m_frame->document() != this)
3505 return 0;
3506
3507 return frame()->domWindow();
3508 }
3509
setWindowAttributeEventListener(const AtomicString & eventType,PassRefPtr<EventListener> listener)3510 void Document::setWindowAttributeEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener)
3511 {
3512 DOMWindow* domWindow = this->domWindow();
3513 if (!domWindow)
3514 return;
3515 domWindow->setAttributeEventListener(eventType, listener);
3516 }
3517
getWindowAttributeEventListener(const AtomicString & eventType)3518 EventListener* Document::getWindowAttributeEventListener(const AtomicString& eventType)
3519 {
3520 DOMWindow* domWindow = this->domWindow();
3521 if (!domWindow)
3522 return 0;
3523 return domWindow->getAttributeEventListener(eventType);
3524 }
3525
dispatchWindowEvent(PassRefPtr<Event> event,PassRefPtr<EventTarget> target)3526 void Document::dispatchWindowEvent(PassRefPtr<Event> event, PassRefPtr<EventTarget> target)
3527 {
3528 ASSERT(!eventDispatchForbidden());
3529 DOMWindow* domWindow = this->domWindow();
3530 if (!domWindow)
3531 return;
3532 domWindow->dispatchEvent(event, target);
3533 }
3534
dispatchWindowLoadEvent()3535 void Document::dispatchWindowLoadEvent()
3536 {
3537 ASSERT(!eventDispatchForbidden());
3538 DOMWindow* domWindow = this->domWindow();
3539 if (!domWindow)
3540 return;
3541 domWindow->dispatchLoadEvent();
3542 }
3543
enqueueWindowEvent(PassRefPtr<Event> event)3544 void Document::enqueueWindowEvent(PassRefPtr<Event> event)
3545 {
3546 event->setTarget(domWindow());
3547 m_eventQueue->enqueueEvent(event);
3548 }
3549
enqueueDocumentEvent(PassRefPtr<Event> event)3550 void Document::enqueueDocumentEvent(PassRefPtr<Event> event)
3551 {
3552 event->setTarget(this);
3553 m_eventQueue->enqueueEvent(event);
3554 }
3555
createEvent(const String & eventType,ExceptionCode & ec)3556 PassRefPtr<Event> Document::createEvent(const String& eventType, ExceptionCode& ec)
3557 {
3558 RefPtr<Event> event;
3559 if (eventType == "Event" || eventType == "Events" || eventType == "HTMLEvents")
3560 event = Event::create();
3561 else if (eventType == "CustomEvent")
3562 event = CustomEvent::create();
3563 else if (eventType == "KeyboardEvent" || eventType == "KeyboardEvents")
3564 event = KeyboardEvent::create();
3565 else if (eventType == "MessageEvent")
3566 event = MessageEvent::create();
3567 else if (eventType == "MouseEvent" || eventType == "MouseEvents")
3568 event = MouseEvent::create();
3569 else if (eventType == "MutationEvent" || eventType == "MutationEvents")
3570 event = MutationEvent::create();
3571 else if (eventType == "OverflowEvent")
3572 event = OverflowEvent::create();
3573 else if (eventType == "PageTransitionEvent")
3574 event = PageTransitionEvent::create();
3575 else if (eventType == "ProgressEvent")
3576 event = ProgressEvent::create();
3577 #if ENABLE(DOM_STORAGE)
3578 else if (eventType == "StorageEvent")
3579 event = StorageEvent::create();
3580 #endif
3581 else if (eventType == "TextEvent")
3582 event = TextEvent::create();
3583 else if (eventType == "UIEvent" || eventType == "UIEvents")
3584 event = UIEvent::create();
3585 else if (eventType == "WebKitAnimationEvent")
3586 event = WebKitAnimationEvent::create();
3587 else if (eventType == "WebKitTransitionEvent")
3588 event = WebKitTransitionEvent::create();
3589 else if (eventType == "WheelEvent")
3590 event = WheelEvent::create();
3591 #if ENABLE(SVG)
3592 else if (eventType == "SVGEvents")
3593 event = Event::create();
3594 else if (eventType == "SVGZoomEvents")
3595 event = SVGZoomEvent::create();
3596 #endif
3597 #if ENABLE(TOUCH_EVENTS)
3598 #if USE(V8)
3599 else if (eventType == "TouchEvent" && RuntimeEnabledFeatures::touchEnabled())
3600 #else
3601 else if (eventType == "TouchEvent")
3602 #endif
3603 event = TouchEvent::create();
3604 #endif
3605 #if ENABLE(DEVICE_ORIENTATION)
3606 else if (eventType == "DeviceMotionEvent")
3607 event = DeviceMotionEvent::create();
3608 else if (eventType == "DeviceOrientationEvent")
3609 event = DeviceOrientationEvent::create();
3610 #endif
3611 #if ENABLE(ORIENTATION_EVENTS)
3612 else if (eventType == "OrientationEvent")
3613 event = Event::create();
3614 #endif
3615 if (event)
3616 return event.release();
3617
3618 ec = NOT_SUPPORTED_ERR;
3619 return 0;
3620 }
3621
addListenerTypeIfNeeded(const AtomicString & eventType)3622 void Document::addListenerTypeIfNeeded(const AtomicString& eventType)
3623 {
3624 if (eventType == eventNames().DOMSubtreeModifiedEvent)
3625 addListenerType(DOMSUBTREEMODIFIED_LISTENER);
3626 else if (eventType == eventNames().DOMNodeInsertedEvent)
3627 addListenerType(DOMNODEINSERTED_LISTENER);
3628 else if (eventType == eventNames().DOMNodeRemovedEvent)
3629 addListenerType(DOMNODEREMOVED_LISTENER);
3630 else if (eventType == eventNames().DOMNodeRemovedFromDocumentEvent)
3631 addListenerType(DOMNODEREMOVEDFROMDOCUMENT_LISTENER);
3632 else if (eventType == eventNames().DOMNodeInsertedIntoDocumentEvent)
3633 addListenerType(DOMNODEINSERTEDINTODOCUMENT_LISTENER);
3634 else if (eventType == eventNames().DOMAttrModifiedEvent)
3635 addListenerType(DOMATTRMODIFIED_LISTENER);
3636 else if (eventType == eventNames().DOMCharacterDataModifiedEvent)
3637 addListenerType(DOMCHARACTERDATAMODIFIED_LISTENER);
3638 else if (eventType == eventNames().overflowchangedEvent)
3639 addListenerType(OVERFLOWCHANGED_LISTENER);
3640 else if (eventType == eventNames().webkitAnimationStartEvent)
3641 addListenerType(ANIMATIONSTART_LISTENER);
3642 else if (eventType == eventNames().webkitAnimationEndEvent)
3643 addListenerType(ANIMATIONEND_LISTENER);
3644 else if (eventType == eventNames().webkitAnimationIterationEvent)
3645 addListenerType(ANIMATIONITERATION_LISTENER);
3646 else if (eventType == eventNames().webkitTransitionEndEvent)
3647 addListenerType(TRANSITIONEND_LISTENER);
3648 else if (eventType == eventNames().beforeloadEvent)
3649 addListenerType(BEFORELOAD_LISTENER);
3650 else if (eventType == eventNames().beforeprocessEvent)
3651 addListenerType(BEFOREPROCESS_LISTENER);
3652 #if ENABLE(TOUCH_EVENTS)
3653 else if (eventType == eventNames().touchstartEvent
3654 || eventType == eventNames().touchmoveEvent
3655 || eventType == eventNames().touchendEvent
3656 || eventType == eventNames().touchcancelEvent) {
3657 addListenerType(TOUCH_LISTENER);
3658 if (Page* page = this->page())
3659 page->chrome()->client()->needTouchEvents(true);
3660 }
3661 #endif
3662 }
3663
getOverrideStyle(Element *,const String &)3664 CSSStyleDeclaration* Document::getOverrideStyle(Element*, const String&)
3665 {
3666 return 0;
3667 }
3668
ownerElement() const3669 HTMLFrameOwnerElement* Document::ownerElement() const
3670 {
3671 if (!frame())
3672 return 0;
3673 return frame()->ownerElement();
3674 }
3675
cookie(ExceptionCode & ec) const3676 String Document::cookie(ExceptionCode& ec) const
3677 {
3678 if (page() && !page()->cookieEnabled())
3679 return String();
3680
3681 // FIXME: The HTML5 DOM spec states that this attribute can raise an
3682 // INVALID_STATE_ERR exception on getting if the Document has no
3683 // browsing context.
3684
3685 if (!securityOrigin()->canAccessCookies()) {
3686 ec = SECURITY_ERR;
3687 return String();
3688 }
3689
3690 KURL cookieURL = this->cookieURL();
3691 if (cookieURL.isEmpty())
3692 return String();
3693
3694 return cookies(this, cookieURL);
3695 }
3696
setCookie(const String & value,ExceptionCode & ec)3697 void Document::setCookie(const String& value, ExceptionCode& ec)
3698 {
3699 if (page() && !page()->cookieEnabled())
3700 return;
3701
3702 // FIXME: The HTML5 DOM spec states that this attribute can raise an
3703 // INVALID_STATE_ERR exception on setting if the Document has no
3704 // browsing context.
3705
3706 if (!securityOrigin()->canAccessCookies()) {
3707 ec = SECURITY_ERR;
3708 return;
3709 }
3710
3711 KURL cookieURL = this->cookieURL();
3712 if (cookieURL.isEmpty())
3713 return;
3714
3715 setCookies(this, cookieURL, value);
3716 }
3717
referrer() const3718 String Document::referrer() const
3719 {
3720 if (frame())
3721 return frame()->loader()->referrer();
3722 return String();
3723 }
3724
domain() const3725 String Document::domain() const
3726 {
3727 return securityOrigin()->domain();
3728 }
3729
setDomain(const String & newDomain,ExceptionCode & ec)3730 void Document::setDomain(const String& newDomain, ExceptionCode& ec)
3731 {
3732 if (SecurityOrigin::isDomainRelaxationForbiddenForURLScheme(securityOrigin()->protocol())) {
3733 ec = SECURITY_ERR;
3734 return;
3735 }
3736
3737 // Both NS and IE specify that changing the domain is only allowed when
3738 // the new domain is a suffix of the old domain.
3739
3740 // FIXME: We should add logging indicating why a domain was not allowed.
3741
3742 // If the new domain is the same as the old domain, still call
3743 // securityOrigin()->setDomainForDOM. This will change the
3744 // security check behavior. For example, if a page loaded on port 8000
3745 // assigns its current domain using document.domain, the page will
3746 // allow other pages loaded on different ports in the same domain that
3747 // have also assigned to access this page.
3748 if (equalIgnoringCase(domain(), newDomain)) {
3749 securityOrigin()->setDomainFromDOM(newDomain);
3750 if (m_frame)
3751 m_frame->script()->updateSecurityOrigin();
3752 return;
3753 }
3754
3755 int oldLength = domain().length();
3756 int newLength = newDomain.length();
3757 // e.g. newDomain = webkit.org (10) and domain() = www.webkit.org (14)
3758 if (newLength >= oldLength) {
3759 ec = SECURITY_ERR;
3760 return;
3761 }
3762
3763 String test = domain();
3764 // Check that it's a subdomain, not e.g. "ebkit.org"
3765 if (test[oldLength - newLength - 1] != '.') {
3766 ec = SECURITY_ERR;
3767 return;
3768 }
3769
3770 // Now test is "webkit.org" from domain()
3771 // and we check that it's the same thing as newDomain
3772 test.remove(0, oldLength - newLength);
3773 if (test != newDomain) {
3774 ec = SECURITY_ERR;
3775 return;
3776 }
3777
3778 securityOrigin()->setDomainFromDOM(newDomain);
3779 if (m_frame)
3780 m_frame->script()->updateSecurityOrigin();
3781 }
3782
3783 // http://www.whatwg.org/specs/web-apps/current-work/#dom-document-lastmodified
lastModified() const3784 String Document::lastModified() const
3785 {
3786 DateComponents date;
3787 bool foundDate = false;
3788 if (m_frame) {
3789 String httpLastModified;
3790 if (DocumentLoader* documentLoader = loader())
3791 httpLastModified = documentLoader->response().httpHeaderField("Last-Modified");
3792 if (!httpLastModified.isEmpty()) {
3793 date.setMillisecondsSinceEpochForDateTime(parseDate(httpLastModified));
3794 foundDate = true;
3795 }
3796 }
3797 // FIXME: If this document came from the file system, the HTML5
3798 // specificiation tells us to read the last modification date from the file
3799 // system.
3800 if (!foundDate)
3801 date.setMillisecondsSinceEpochForDateTime(currentTimeMS());
3802 return String::format("%02d/%02d/%04d %02d:%02d:%02d", date.month() + 1, date.monthDay(), date.fullYear(), date.hour(), date.minute(), date.second());
3803 }
3804
isValidNameNonASCII(const UChar * characters,unsigned length)3805 static bool isValidNameNonASCII(const UChar* characters, unsigned length)
3806 {
3807 unsigned i = 0;
3808
3809 UChar32 c;
3810 U16_NEXT(characters, i, length, c)
3811 if (!isValidNameStart(c))
3812 return false;
3813
3814 while (i < length) {
3815 U16_NEXT(characters, i, length, c)
3816 if (!isValidNamePart(c))
3817 return false;
3818 }
3819
3820 return true;
3821 }
3822
isValidNameASCII(const UChar * characters,unsigned length)3823 static inline bool isValidNameASCII(const UChar* characters, unsigned length)
3824 {
3825 UChar c = characters[0];
3826 if (!(isASCIIAlpha(c) || c == ':' || c == '_'))
3827 return false;
3828
3829 for (unsigned i = 1; i < length; ++i) {
3830 c = characters[i];
3831 if (!(isASCIIAlphanumeric(c) || c == ':' || c == '_' || c == '-' || c == '.'))
3832 return false;
3833 }
3834
3835 return true;
3836 }
3837
isValidName(const String & name)3838 bool Document::isValidName(const String& name)
3839 {
3840 unsigned length = name.length();
3841 if (!length)
3842 return false;
3843
3844 const UChar* characters = name.characters();
3845 return isValidNameASCII(characters, length) || isValidNameNonASCII(characters, length);
3846 }
3847
parseQualifiedName(const String & qualifiedName,String & prefix,String & localName,ExceptionCode & ec)3848 bool Document::parseQualifiedName(const String& qualifiedName, String& prefix, String& localName, ExceptionCode& ec)
3849 {
3850 unsigned length = qualifiedName.length();
3851
3852 if (!length) {
3853 ec = INVALID_CHARACTER_ERR;
3854 return false;
3855 }
3856
3857 bool nameStart = true;
3858 bool sawColon = false;
3859 int colonPos = 0;
3860
3861 const UChar* s = qualifiedName.characters();
3862 for (unsigned i = 0; i < length;) {
3863 UChar32 c;
3864 U16_NEXT(s, i, length, c)
3865 if (c == ':') {
3866 if (sawColon) {
3867 ec = NAMESPACE_ERR;
3868 return false; // multiple colons: not allowed
3869 }
3870 nameStart = true;
3871 sawColon = true;
3872 colonPos = i - 1;
3873 } else if (nameStart) {
3874 if (!isValidNameStart(c)) {
3875 ec = INVALID_CHARACTER_ERR;
3876 return false;
3877 }
3878 nameStart = false;
3879 } else {
3880 if (!isValidNamePart(c)) {
3881 ec = INVALID_CHARACTER_ERR;
3882 return false;
3883 }
3884 }
3885 }
3886
3887 if (!sawColon) {
3888 prefix = String();
3889 localName = qualifiedName;
3890 } else {
3891 prefix = qualifiedName.substring(0, colonPos);
3892 if (prefix.isEmpty()) {
3893 ec = NAMESPACE_ERR;
3894 return false;
3895 }
3896 localName = qualifiedName.substring(colonPos + 1);
3897 }
3898
3899 if (localName.isEmpty()) {
3900 ec = NAMESPACE_ERR;
3901 return false;
3902 }
3903
3904 return true;
3905 }
3906
setDecoder(PassRefPtr<TextResourceDecoder> decoder)3907 void Document::setDecoder(PassRefPtr<TextResourceDecoder> decoder)
3908 {
3909 m_decoder = decoder;
3910 }
3911
completeURL(const String & url) const3912 KURL Document::completeURL(const String& url) const
3913 {
3914 // Always return a null URL when passed a null string.
3915 // FIXME: Should we change the KURL constructor to have this behavior?
3916 // See also [CSS]StyleSheet::completeURL(const String&)
3917 if (url.isNull())
3918 return KURL();
3919 const KURL& baseURL = ((m_baseURL.isEmpty() || m_baseURL == blankURL()) && parentDocument()) ? parentDocument()->baseURL() : m_baseURL;
3920 if (!m_decoder)
3921 return KURL(baseURL, url);
3922 return KURL(baseURL, url, m_decoder->encoding());
3923 }
3924
setInPageCache(bool flag)3925 void Document::setInPageCache(bool flag)
3926 {
3927 if (m_inPageCache == flag)
3928 return;
3929
3930 m_inPageCache = flag;
3931 if (flag) {
3932 ASSERT(!m_savedRenderer);
3933 m_savedRenderer = renderer();
3934 if (FrameView* v = view())
3935 v->resetScrollbarsAndClearContentsSize();
3936 m_styleRecalcTimer.stop();
3937 } else {
3938 ASSERT(!renderer() || renderer() == m_savedRenderer);
3939 ASSERT(m_renderArena);
3940 setRenderer(m_savedRenderer);
3941 m_savedRenderer = 0;
3942
3943 if (frame() && frame()->page())
3944 frame()->page()->updateViewportArguments();
3945
3946 if (childNeedsStyleRecalc())
3947 scheduleStyleRecalc();
3948 }
3949 }
3950
documentWillBecomeInactive()3951 void Document::documentWillBecomeInactive()
3952 {
3953 #if USE(ACCELERATED_COMPOSITING)
3954 if (renderer())
3955 renderView()->willMoveOffscreen();
3956 #endif
3957
3958 HashSet<Element*>::iterator end = m_documentActivationCallbackElements.end();
3959 for (HashSet<Element*>::iterator i = m_documentActivationCallbackElements.begin(); i != end; ++i)
3960 (*i)->documentWillBecomeInactive();
3961 }
3962
documentDidBecomeActive()3963 void Document::documentDidBecomeActive()
3964 {
3965 HashSet<Element*>::iterator end = m_documentActivationCallbackElements.end();
3966 for (HashSet<Element*>::iterator i = m_documentActivationCallbackElements.begin(); i != end; ++i)
3967 (*i)->documentDidBecomeActive();
3968
3969 #if USE(ACCELERATED_COMPOSITING)
3970 if (renderer())
3971 renderView()->didMoveOnscreen();
3972 #endif
3973
3974 ASSERT(m_frame);
3975 m_frame->loader()->client()->dispatchDidBecomeFrameset(isFrameSet());
3976 }
3977
registerForDocumentActivationCallbacks(Element * e)3978 void Document::registerForDocumentActivationCallbacks(Element* e)
3979 {
3980 m_documentActivationCallbackElements.add(e);
3981 }
3982
unregisterForDocumentActivationCallbacks(Element * e)3983 void Document::unregisterForDocumentActivationCallbacks(Element* e)
3984 {
3985 m_documentActivationCallbackElements.remove(e);
3986 }
3987
mediaVolumeDidChange()3988 void Document::mediaVolumeDidChange()
3989 {
3990 HashSet<Element*>::iterator end = m_mediaVolumeCallbackElements.end();
3991 for (HashSet<Element*>::iterator i = m_mediaVolumeCallbackElements.begin(); i != end; ++i)
3992 (*i)->mediaVolumeDidChange();
3993 }
3994
registerForMediaVolumeCallbacks(Element * e)3995 void Document::registerForMediaVolumeCallbacks(Element* e)
3996 {
3997 m_mediaVolumeCallbackElements.add(e);
3998 }
3999
unregisterForMediaVolumeCallbacks(Element * e)4000 void Document::unregisterForMediaVolumeCallbacks(Element* e)
4001 {
4002 m_mediaVolumeCallbackElements.remove(e);
4003 }
4004
privateBrowsingStateDidChange()4005 void Document::privateBrowsingStateDidChange()
4006 {
4007 HashSet<Element*>::iterator end = m_privateBrowsingStateChangedElements.end();
4008 for (HashSet<Element*>::iterator it = m_privateBrowsingStateChangedElements.begin(); it != end; ++it)
4009 (*it)->privateBrowsingStateDidChange();
4010 }
4011
registerForPrivateBrowsingStateChangedCallbacks(Element * e)4012 void Document::registerForPrivateBrowsingStateChangedCallbacks(Element* e)
4013 {
4014 m_privateBrowsingStateChangedElements.add(e);
4015 }
4016
unregisterForPrivateBrowsingStateChangedCallbacks(Element * e)4017 void Document::unregisterForPrivateBrowsingStateChangedCallbacks(Element* e)
4018 {
4019 m_privateBrowsingStateChangedElements.remove(e);
4020 }
4021
setShouldCreateRenderers(bool f)4022 void Document::setShouldCreateRenderers(bool f)
4023 {
4024 m_createRenderers = f;
4025 }
4026
shouldCreateRenderers()4027 bool Document::shouldCreateRenderers()
4028 {
4029 return m_createRenderers;
4030 }
4031
4032 // Support for Javascript execCommand, and related methods
4033
command(Document * document,const String & commandName,bool userInterface=false)4034 static Editor::Command command(Document* document, const String& commandName, bool userInterface = false)
4035 {
4036 Frame* frame = document->frame();
4037 if (!frame || frame->document() != document)
4038 return Editor::Command();
4039
4040 document->updateStyleIfNeeded();
4041
4042 return frame->editor()->command(commandName,
4043 userInterface ? CommandFromDOMWithUserInterface : CommandFromDOM);
4044 }
4045
execCommand(const String & commandName,bool userInterface,const String & value)4046 bool Document::execCommand(const String& commandName, bool userInterface, const String& value)
4047 {
4048 return command(this, commandName, userInterface).execute(value);
4049 }
4050
queryCommandEnabled(const String & commandName)4051 bool Document::queryCommandEnabled(const String& commandName)
4052 {
4053 return command(this, commandName).isEnabled();
4054 }
4055
queryCommandIndeterm(const String & commandName)4056 bool Document::queryCommandIndeterm(const String& commandName)
4057 {
4058 return command(this, commandName).state() == MixedTriState;
4059 }
4060
queryCommandState(const String & commandName)4061 bool Document::queryCommandState(const String& commandName)
4062 {
4063 return command(this, commandName).state() == TrueTriState;
4064 }
4065
queryCommandSupported(const String & commandName)4066 bool Document::queryCommandSupported(const String& commandName)
4067 {
4068 return command(this, commandName).isSupported();
4069 }
4070
queryCommandValue(const String & commandName)4071 String Document::queryCommandValue(const String& commandName)
4072 {
4073 return command(this, commandName).value();
4074 }
4075
4076 #if ENABLE(XSLT)
4077
applyXSLTransform(ProcessingInstruction * pi)4078 void Document::applyXSLTransform(ProcessingInstruction* pi)
4079 {
4080 RefPtr<XSLTProcessor> processor = XSLTProcessor::create();
4081 processor->setXSLStyleSheet(static_cast<XSLStyleSheet*>(pi->sheet()));
4082 String resultMIMEType;
4083 String newSource;
4084 String resultEncoding;
4085 if (!processor->transformToString(this, resultMIMEType, newSource, resultEncoding))
4086 return;
4087 // FIXME: If the transform failed we should probably report an error (like Mozilla does).
4088 processor->createDocumentFromSource(newSource, resultEncoding, resultMIMEType, this, frame());
4089 }
4090
setTransformSource(PassOwnPtr<TransformSource> source)4091 void Document::setTransformSource(PassOwnPtr<TransformSource> source)
4092 {
4093 if (m_transformSource == source)
4094 return;
4095 m_transformSource = source;
4096 }
4097
4098 #endif
4099
setDesignMode(InheritedBool value)4100 void Document::setDesignMode(InheritedBool value)
4101 {
4102 m_designMode = value;
4103 }
4104
getDesignMode() const4105 Document::InheritedBool Document::getDesignMode() const
4106 {
4107 return m_designMode;
4108 }
4109
inDesignMode() const4110 bool Document::inDesignMode() const
4111 {
4112 for (const Document* d = this; d; d = d->parentDocument()) {
4113 if (d->m_designMode != inherit)
4114 return d->m_designMode;
4115 }
4116 return false;
4117 }
4118
parentDocument() const4119 Document* Document::parentDocument() const
4120 {
4121 if (!m_frame)
4122 return 0;
4123 Frame* parent = m_frame->tree()->parent();
4124 if (!parent)
4125 return 0;
4126 return parent->document();
4127 }
4128
topDocument() const4129 Document* Document::topDocument() const
4130 {
4131 Document* doc = const_cast<Document *>(this);
4132 Element* element;
4133 while ((element = doc->ownerElement()))
4134 doc = element->document();
4135
4136 return doc;
4137 }
4138
createAttribute(const String & name,ExceptionCode & ec)4139 PassRefPtr<Attr> Document::createAttribute(const String& name, ExceptionCode& ec)
4140 {
4141 return createAttributeNS(String(), name, ec, true);
4142 }
4143
createAttributeNS(const String & namespaceURI,const String & qualifiedName,ExceptionCode & ec,bool shouldIgnoreNamespaceChecks)4144 PassRefPtr<Attr> Document::createAttributeNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode& ec, bool shouldIgnoreNamespaceChecks)
4145 {
4146 String prefix, localName;
4147 if (!parseQualifiedName(qualifiedName, prefix, localName, ec))
4148 return 0;
4149
4150 QualifiedName qName(prefix, localName, namespaceURI);
4151 if (!shouldIgnoreNamespaceChecks && hasPrefixNamespaceMismatch(qName)) {
4152 ec = NAMESPACE_ERR;
4153 return 0;
4154 }
4155
4156 // Spec: DOM Level 2 Core: http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrAttrNS
4157 if (!shouldIgnoreNamespaceChecks && qName.localName() == xmlnsAtom && qName.namespaceURI() != XMLNSNames::xmlnsNamespaceURI) {
4158 ec = NAMESPACE_ERR;
4159 return 0;
4160 }
4161
4162 // FIXME: Assume this is a mapped attribute, since createAttribute isn't namespace-aware. There's no harm to XML
4163 // documents if we're wrong.
4164 return Attr::create(0, this, Attribute::createMapped(qName, StringImpl::empty()));
4165 }
4166
4167 #if ENABLE(SVG)
svgExtensions()4168 const SVGDocumentExtensions* Document::svgExtensions()
4169 {
4170 return m_svgExtensions.get();
4171 }
4172
accessSVGExtensions()4173 SVGDocumentExtensions* Document::accessSVGExtensions()
4174 {
4175 if (!m_svgExtensions)
4176 m_svgExtensions = adoptPtr(new SVGDocumentExtensions(this));
4177 return m_svgExtensions.get();
4178 }
4179
hasSVGRootNode() const4180 bool Document::hasSVGRootNode() const
4181 {
4182 return documentElement() && documentElement()->hasTagName(SVGNames::svgTag);
4183 }
4184 #endif
4185
images()4186 PassRefPtr<HTMLCollection> Document::images()
4187 {
4188 return HTMLCollection::create(this, DocImages);
4189 }
4190
applets()4191 PassRefPtr<HTMLCollection> Document::applets()
4192 {
4193 return HTMLCollection::create(this, DocApplets);
4194 }
4195
embeds()4196 PassRefPtr<HTMLCollection> Document::embeds()
4197 {
4198 return HTMLCollection::create(this, DocEmbeds);
4199 }
4200
plugins()4201 PassRefPtr<HTMLCollection> Document::plugins()
4202 {
4203 // This is an alias for embeds() required for the JS DOM bindings.
4204 return HTMLCollection::create(this, DocEmbeds);
4205 }
4206
objects()4207 PassRefPtr<HTMLCollection> Document::objects()
4208 {
4209 return HTMLCollection::create(this, DocObjects);
4210 }
4211
scripts()4212 PassRefPtr<HTMLCollection> Document::scripts()
4213 {
4214 return HTMLCollection::create(this, DocScripts);
4215 }
4216
links()4217 PassRefPtr<HTMLCollection> Document::links()
4218 {
4219 return HTMLCollection::create(this, DocLinks);
4220 }
4221
forms()4222 PassRefPtr<HTMLCollection> Document::forms()
4223 {
4224 return HTMLCollection::create(this, DocForms);
4225 }
4226
anchors()4227 PassRefPtr<HTMLCollection> Document::anchors()
4228 {
4229 return HTMLCollection::create(this, DocAnchors);
4230 }
4231
all()4232 PassRefPtr<HTMLAllCollection> Document::all()
4233 {
4234 return HTMLAllCollection::create(this);
4235 }
4236
windowNamedItems(const String & name)4237 PassRefPtr<HTMLCollection> Document::windowNamedItems(const String &name)
4238 {
4239 return HTMLNameCollection::create(this, WindowNamedItems, name);
4240 }
4241
documentNamedItems(const String & name)4242 PassRefPtr<HTMLCollection> Document::documentNamedItems(const String &name)
4243 {
4244 return HTMLNameCollection::create(this, DocumentNamedItems, name);
4245 }
4246
nameCollectionInfo(CollectionType type,const AtomicString & name)4247 CollectionCache* Document::nameCollectionInfo(CollectionType type, const AtomicString& name)
4248 {
4249 ASSERT(type >= FirstNamedDocumentCachedType);
4250 unsigned index = type - FirstNamedDocumentCachedType;
4251 ASSERT(index < NumNamedDocumentCachedTypes);
4252
4253 NamedCollectionMap& map = m_nameCollectionInfo[index];
4254 NamedCollectionMap::iterator iter = map.find(name.impl());
4255 if (iter == map.end())
4256 iter = map.add(name.impl(), new CollectionCache).first;
4257 iter->second->checkConsistency();
4258 return iter->second;
4259 }
4260
finishedParsing()4261 void Document::finishedParsing()
4262 {
4263 ASSERT(!scriptableDocumentParser() || !m_parser->isParsing());
4264 ASSERT(!scriptableDocumentParser() || m_readyState != Loading);
4265 setParsing(false);
4266 if (!m_documentTiming.domContentLoadedEventStart)
4267 m_documentTiming.domContentLoadedEventStart = currentTime();
4268 dispatchEvent(Event::create(eventNames().DOMContentLoadedEvent, true, false));
4269 if (!m_documentTiming.domContentLoadedEventEnd)
4270 m_documentTiming.domContentLoadedEventEnd = currentTime();
4271
4272 if (RefPtr<Frame> f = frame()) {
4273 // FrameLoader::finishedParsing() might end up calling Document::implicitClose() if all
4274 // resource loads are complete. HTMLObjectElements can start loading their resources from
4275 // post attach callbacks triggered by recalcStyle(). This means if we parse out an <object>
4276 // tag and then reach the end of the document without updating styles, we might not have yet
4277 // started the resource load and might fire the window load event too early. To avoid this
4278 // we force the styles to be up to date before calling FrameLoader::finishedParsing().
4279 // See https://bugs.webkit.org/show_bug.cgi?id=36864 starting around comment 35.
4280 updateStyleIfNeeded();
4281
4282 f->loader()->finishedParsing();
4283
4284 InspectorInstrumentation::domContentLoadedEventFired(f.get(), url());
4285 }
4286 }
4287
formElementsState() const4288 Vector<String> Document::formElementsState() const
4289 {
4290 Vector<String> stateVector;
4291 stateVector.reserveInitialCapacity(m_formElementsWithState.size() * 3);
4292 typedef FormElementListHashSet::const_iterator Iterator;
4293 Iterator end = m_formElementsWithState.end();
4294 for (Iterator it = m_formElementsWithState.begin(); it != end; ++it) {
4295 Element* elementWithState = *it;
4296 String value;
4297 if (!elementWithState->shouldSaveAndRestoreFormControlState())
4298 continue;
4299 if (!elementWithState->saveFormControlState(value))
4300 continue;
4301 stateVector.append(elementWithState->formControlName().string());
4302 stateVector.append(elementWithState->formControlType().string());
4303 stateVector.append(value);
4304 }
4305 return stateVector;
4306 }
4307
4308 #if ENABLE(XPATH)
4309
createExpression(const String & expression,XPathNSResolver * resolver,ExceptionCode & ec)4310 PassRefPtr<XPathExpression> Document::createExpression(const String& expression,
4311 XPathNSResolver* resolver,
4312 ExceptionCode& ec)
4313 {
4314 if (!m_xpathEvaluator)
4315 m_xpathEvaluator = XPathEvaluator::create();
4316 return m_xpathEvaluator->createExpression(expression, resolver, ec);
4317 }
4318
createNSResolver(Node * nodeResolver)4319 PassRefPtr<XPathNSResolver> Document::createNSResolver(Node* nodeResolver)
4320 {
4321 if (!m_xpathEvaluator)
4322 m_xpathEvaluator = XPathEvaluator::create();
4323 return m_xpathEvaluator->createNSResolver(nodeResolver);
4324 }
4325
evaluate(const String & expression,Node * contextNode,XPathNSResolver * resolver,unsigned short type,XPathResult * result,ExceptionCode & ec)4326 PassRefPtr<XPathResult> Document::evaluate(const String& expression,
4327 Node* contextNode,
4328 XPathNSResolver* resolver,
4329 unsigned short type,
4330 XPathResult* result,
4331 ExceptionCode& ec)
4332 {
4333 if (!m_xpathEvaluator)
4334 m_xpathEvaluator = XPathEvaluator::create();
4335 return m_xpathEvaluator->evaluate(expression, contextNode, resolver, type, result, ec);
4336 }
4337
4338 #endif // ENABLE(XPATH)
4339
setStateForNewFormElements(const Vector<String> & stateVector)4340 void Document::setStateForNewFormElements(const Vector<String>& stateVector)
4341 {
4342 // Walk the state vector backwards so that the value to use for each
4343 // name/type pair first is the one at the end of each individual vector
4344 // in the FormElementStateMap. We're using them like stacks.
4345 typedef FormElementStateMap::iterator Iterator;
4346 m_formElementsWithState.clear();
4347 for (size_t i = stateVector.size() / 3 * 3; i; i -= 3) {
4348 AtomicString a = stateVector[i - 3];
4349 AtomicString b = stateVector[i - 2];
4350 const String& c = stateVector[i - 1];
4351 FormElementKey key(a.impl(), b.impl());
4352 Iterator it = m_stateForNewFormElements.find(key);
4353 if (it != m_stateForNewFormElements.end())
4354 it->second.append(c);
4355 else {
4356 Vector<String> v(1);
4357 v[0] = c;
4358 m_stateForNewFormElements.set(key, v);
4359 }
4360 }
4361 }
4362
hasStateForNewFormElements() const4363 bool Document::hasStateForNewFormElements() const
4364 {
4365 return !m_stateForNewFormElements.isEmpty();
4366 }
4367
takeStateForFormElement(AtomicStringImpl * name,AtomicStringImpl * type,String & state)4368 bool Document::takeStateForFormElement(AtomicStringImpl* name, AtomicStringImpl* type, String& state)
4369 {
4370 typedef FormElementStateMap::iterator Iterator;
4371 Iterator it = m_stateForNewFormElements.find(FormElementKey(name, type));
4372 if (it == m_stateForNewFormElements.end())
4373 return false;
4374 ASSERT(it->second.size());
4375 state = it->second.last();
4376 if (it->second.size() > 1)
4377 it->second.removeLast();
4378 else
4379 m_stateForNewFormElements.remove(it);
4380 return true;
4381 }
4382
FormElementKey(AtomicStringImpl * name,AtomicStringImpl * type)4383 FormElementKey::FormElementKey(AtomicStringImpl* name, AtomicStringImpl* type)
4384 : m_name(name), m_type(type)
4385 {
4386 ref();
4387 }
4388
~FormElementKey()4389 FormElementKey::~FormElementKey()
4390 {
4391 deref();
4392 }
4393
FormElementKey(const FormElementKey & other)4394 FormElementKey::FormElementKey(const FormElementKey& other)
4395 : m_name(other.name()), m_type(other.type())
4396 {
4397 ref();
4398 }
4399
operator =(const FormElementKey & other)4400 FormElementKey& FormElementKey::operator=(const FormElementKey& other)
4401 {
4402 other.ref();
4403 deref();
4404 m_name = other.name();
4405 m_type = other.type();
4406 return *this;
4407 }
4408
ref() const4409 void FormElementKey::ref() const
4410 {
4411 if (name())
4412 name()->ref();
4413 if (type())
4414 type()->ref();
4415 }
4416
deref() const4417 void FormElementKey::deref() const
4418 {
4419 if (name())
4420 name()->deref();
4421 if (type())
4422 type()->deref();
4423 }
4424
hash(const FormElementKey & key)4425 unsigned FormElementKeyHash::hash(const FormElementKey& key)
4426 {
4427 return StringHasher::hashMemory<sizeof(FormElementKey)>(&key);
4428 }
4429
setIconURL(const String & iconURL,const String & type)4430 void Document::setIconURL(const String& iconURL, const String& type)
4431 {
4432 // FIXME - <rdar://problem/4727645> - At some point in the future, we might actually honor the "type"
4433 if (m_iconURL.isEmpty())
4434 m_iconURL = iconURL;
4435 else if (!type.isEmpty())
4436 m_iconURL = iconURL;
4437 if (Frame* f = frame())
4438 f->loader()->setIconURL(m_iconURL);
4439 }
4440
registerFormElementWithFormAttribute(FormAssociatedElement * element)4441 void Document::registerFormElementWithFormAttribute(FormAssociatedElement* element)
4442 {
4443 ASSERT(toHTMLElement(element)->fastHasAttribute(formAttr));
4444 m_formElementsWithFormAttribute.add(element);
4445 }
4446
unregisterFormElementWithFormAttribute(FormAssociatedElement * element)4447 void Document::unregisterFormElementWithFormAttribute(FormAssociatedElement* element)
4448 {
4449 m_formElementsWithFormAttribute.remove(element);
4450 }
4451
resetFormElementsOwner(HTMLFormElement * form)4452 void Document::resetFormElementsOwner(HTMLFormElement* form)
4453 {
4454 typedef FormAssociatedElementListHashSet::iterator Iterator;
4455 Iterator end = m_formElementsWithFormAttribute.end();
4456 for (Iterator it = m_formElementsWithFormAttribute.begin(); it != end; ++it)
4457 (*it)->resetFormOwner(form);
4458 }
4459
setUseSecureKeyboardEntryWhenActive(bool usesSecureKeyboard)4460 void Document::setUseSecureKeyboardEntryWhenActive(bool usesSecureKeyboard)
4461 {
4462 if (m_useSecureKeyboardEntryWhenActive == usesSecureKeyboard)
4463 return;
4464
4465 m_useSecureKeyboardEntryWhenActive = usesSecureKeyboard;
4466 m_frame->selection()->updateSecureKeyboardEntryIfActive();
4467 }
4468
useSecureKeyboardEntryWhenActive() const4469 bool Document::useSecureKeyboardEntryWhenActive() const
4470 {
4471 return m_useSecureKeyboardEntryWhenActive;
4472 }
4473
initSecurityContext()4474 void Document::initSecurityContext()
4475 {
4476 if (securityOrigin() && !securityOrigin()->isEmpty())
4477 return; // m_securityOrigin has already been initialized.
4478
4479 if (!m_frame) {
4480 // No source for a security context.
4481 // This can occur via document.implementation.createDocument().
4482 m_cookieURL = KURL(ParsedURLString, "");
4483 ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::createEmpty());
4484 m_contentSecurityPolicy = ContentSecurityPolicy::create();
4485 return;
4486 }
4487
4488 // In the common case, create the security context from the currently
4489 // loading URL with a fresh content security policy.
4490 m_cookieURL = m_url;
4491 ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::create(m_url, m_frame->loader()->sandboxFlags()));
4492 m_contentSecurityPolicy = ContentSecurityPolicy::create(securityOrigin());
4493
4494 if (SecurityOrigin::allowSubstituteDataAccessToLocal()) {
4495 // If this document was loaded with substituteData, then the document can
4496 // load local resources. See https://bugs.webkit.org/show_bug.cgi?id=16756
4497 // and https://bugs.webkit.org/show_bug.cgi?id=19760 for further
4498 // discussion.
4499
4500 DocumentLoader* documentLoader = loader();
4501 if (documentLoader && documentLoader->substituteData().isValid())
4502 securityOrigin()->grantLoadLocalResources();
4503 }
4504
4505 if (Settings* settings = this->settings()) {
4506 if (!settings->isWebSecurityEnabled()) {
4507 // Web security is turned off. We should let this document access every
4508 // other document. This is used primary by testing harnesses for web
4509 // sites.
4510 securityOrigin()->grantUniversalAccess();
4511
4512 } else if (settings->allowUniversalAccessFromFileURLs() && securityOrigin()->isLocal()) {
4513 // Some clients want file:// URLs to have universal access, but that
4514 // setting is dangerous for other clients.
4515 securityOrigin()->grantUniversalAccess();
4516 } else if (!settings->allowFileAccessFromFileURLs() && securityOrigin()->isLocal()) {
4517 // Some clients want file:// URLs to have even tighter restrictions by
4518 // default, and not be able to access other local files.
4519 securityOrigin()->enforceFilePathSeparation();
4520 }
4521 }
4522
4523 if (!securityOrigin()->isEmpty())
4524 return;
4525
4526 // If we do not obtain a meaningful origin from the URL, then we try to
4527 // find one via the frame hierarchy.
4528
4529 Frame* ownerFrame = m_frame->tree()->parent();
4530 if (!ownerFrame)
4531 ownerFrame = m_frame->loader()->opener();
4532
4533 if (ownerFrame) {
4534 m_cookieURL = ownerFrame->document()->cookieURL();
4535 // We alias the SecurityOrigins to match Firefox, see Bug 15313
4536 // https://bugs.webkit.org/show_bug.cgi?id=15313
4537 ScriptExecutionContext::setSecurityOrigin(ownerFrame->document()->securityOrigin());
4538 // FIXME: Consider moving m_contentSecurityPolicy into SecurityOrigin.
4539 m_contentSecurityPolicy = ownerFrame->document()->contentSecurityPolicy();
4540 }
4541 }
4542
setSecurityOrigin(SecurityOrigin * securityOrigin)4543 void Document::setSecurityOrigin(SecurityOrigin* securityOrigin)
4544 {
4545 ScriptExecutionContext::setSecurityOrigin(securityOrigin);
4546 // FIXME: Find a better place to enable DNS prefetch, which is a loader concept,
4547 // not applicable to arbitrary documents.
4548 initDNSPrefetch();
4549 }
4550
4551 #if ENABLE(DATABASE)
4552
allowDatabaseAccess() const4553 bool Document::allowDatabaseAccess() const
4554 {
4555 if (!page() || page()->settings()->privateBrowsingEnabled())
4556 return false;
4557 return true;
4558 }
4559
databaseExceededQuota(const String & name)4560 void Document::databaseExceededQuota(const String& name)
4561 {
4562 Page* currentPage = page();
4563 if (currentPage)
4564 currentPage->chrome()->client()->exceededDatabaseQuota(document()->frame(), name);
4565 }
4566
4567 #endif
4568
isContextThread() const4569 bool Document::isContextThread() const
4570 {
4571 return isMainThread();
4572 }
4573
updateURLForPushOrReplaceState(const KURL & url)4574 void Document::updateURLForPushOrReplaceState(const KURL& url)
4575 {
4576 Frame* f = frame();
4577 if (!f)
4578 return;
4579
4580 setURL(url);
4581 f->loader()->setOutgoingReferrer(url);
4582
4583 if (DocumentLoader* documentLoader = loader())
4584 documentLoader->replaceRequestURLForSameDocumentNavigation(url);
4585 }
4586
statePopped(SerializedScriptValue * stateObject)4587 void Document::statePopped(SerializedScriptValue* stateObject)
4588 {
4589 if (!frame())
4590 return;
4591
4592 // Per step 11 of section 6.5.9 (history traversal) of the HTML5 spec, we
4593 // defer firing of popstate until we're in the complete state.
4594 if (m_readyState == Complete)
4595 enqueuePopstateEvent(stateObject);
4596 else
4597 m_pendingStateObject = stateObject;
4598 }
4599
updateFocusAppearanceSoon(bool restorePreviousSelection)4600 void Document::updateFocusAppearanceSoon(bool restorePreviousSelection)
4601 {
4602 m_updateFocusAppearanceRestoresSelection = restorePreviousSelection;
4603 if (!m_updateFocusAppearanceTimer.isActive())
4604 m_updateFocusAppearanceTimer.startOneShot(0);
4605 }
4606
cancelFocusAppearanceUpdate()4607 void Document::cancelFocusAppearanceUpdate()
4608 {
4609 m_updateFocusAppearanceTimer.stop();
4610 }
4611
updateFocusAppearanceTimerFired(Timer<Document> *)4612 void Document::updateFocusAppearanceTimerFired(Timer<Document>*)
4613 {
4614 Node* node = focusedNode();
4615 if (!node)
4616 return;
4617 if (!node->isElementNode())
4618 return;
4619
4620 updateLayout();
4621
4622 Element* element = static_cast<Element*>(node);
4623 if (element->isFocusable())
4624 element->updateFocusAppearance(m_updateFocusAppearanceRestoresSelection);
4625 }
4626
4627 // FF method for accessing the selection added for compatibility.
getSelection() const4628 DOMSelection* Document::getSelection() const
4629 {
4630 return frame() ? frame()->domWindow()->getSelection() : 0;
4631 }
4632
4633 #if ENABLE(WML)
resetWMLPageState()4634 void Document::resetWMLPageState()
4635 {
4636 if (WMLPageState* pageState = wmlPageStateForDocument(this))
4637 pageState->reset();
4638 }
4639
initializeWMLPageState()4640 void Document::initializeWMLPageState()
4641 {
4642 if (!isWMLDocument())
4643 return;
4644
4645 static_cast<WMLDocument*>(this)->initialize();
4646 }
4647 #endif
4648
attachRange(Range * range)4649 void Document::attachRange(Range* range)
4650 {
4651 ASSERT(!m_ranges.contains(range));
4652 m_ranges.add(range);
4653 }
4654
detachRange(Range * range)4655 void Document::detachRange(Range* range)
4656 {
4657 // We don't ASSERT m_ranges.contains(range) to allow us to call this
4658 // unconditionally to fix: https://bugs.webkit.org/show_bug.cgi?id=26044
4659 m_ranges.remove(range);
4660 }
4661
getCSSCanvasContext(const String & type,const String & name,int width,int height)4662 CanvasRenderingContext* Document::getCSSCanvasContext(const String& type, const String& name, int width, int height)
4663 {
4664 HTMLCanvasElement* result = getCSSCanvasElement(name);
4665 if (!result)
4666 return 0;
4667 result->setSize(IntSize(width, height));
4668 return result->getContext(type);
4669 }
4670
getCSSCanvasElement(const String & name)4671 HTMLCanvasElement* Document::getCSSCanvasElement(const String& name)
4672 {
4673 RefPtr<HTMLCanvasElement> result = m_cssCanvasElements.get(name).get();
4674 if (!result) {
4675 result = HTMLCanvasElement::create(this);
4676 m_cssCanvasElements.set(name, result);
4677 }
4678 return result.get();
4679 }
4680
initDNSPrefetch()4681 void Document::initDNSPrefetch()
4682 {
4683 Settings* settings = this->settings();
4684
4685 m_haveExplicitlyDisabledDNSPrefetch = false;
4686 m_isDNSPrefetchEnabled = settings && settings->dnsPrefetchingEnabled() && securityOrigin()->protocol() == "http";
4687
4688 // Inherit DNS prefetch opt-out from parent frame
4689 if (Document* parent = parentDocument()) {
4690 if (!parent->isDNSPrefetchEnabled())
4691 m_isDNSPrefetchEnabled = false;
4692 }
4693 }
4694
parseDNSPrefetchControlHeader(const String & dnsPrefetchControl)4695 void Document::parseDNSPrefetchControlHeader(const String& dnsPrefetchControl)
4696 {
4697 if (equalIgnoringCase(dnsPrefetchControl, "on") && !m_haveExplicitlyDisabledDNSPrefetch) {
4698 m_isDNSPrefetchEnabled = true;
4699 return;
4700 }
4701
4702 m_isDNSPrefetchEnabled = false;
4703 m_haveExplicitlyDisabledDNSPrefetch = true;
4704 }
4705
addMessage(MessageSource source,MessageType type,MessageLevel level,const String & message,unsigned lineNumber,const String & sourceURL,PassRefPtr<ScriptCallStack> callStack)4706 void Document::addMessage(MessageSource source, MessageType type, MessageLevel level, const String& message, unsigned lineNumber, const String& sourceURL, PassRefPtr<ScriptCallStack> callStack)
4707 {
4708 if (DOMWindow* window = domWindow())
4709 window->console()->addMessage(source, type, level, message, lineNumber, sourceURL, callStack);
4710 }
4711
4712 struct PerformTaskContext {
4713 WTF_MAKE_NONCOPYABLE(PerformTaskContext); WTF_MAKE_FAST_ALLOCATED;
4714 public:
PerformTaskContextWebCore::PerformTaskContext4715 PerformTaskContext(PassRefPtr<DocumentWeakReference> documentReference, PassOwnPtr<ScriptExecutionContext::Task> task)
4716 : documentReference(documentReference)
4717 , task(task)
4718 {
4719 }
4720
4721 RefPtr<DocumentWeakReference> documentReference;
4722 OwnPtr<ScriptExecutionContext::Task> task;
4723 };
4724
performTask(void * ctx)4725 static void performTask(void* ctx)
4726 {
4727 ASSERT(isMainThread());
4728
4729 PerformTaskContext* context = reinterpret_cast<PerformTaskContext*>(ctx);
4730 ASSERT(context);
4731
4732 if (Document* document = context->documentReference->document())
4733 context->task->performTask(document);
4734
4735 delete context;
4736 }
4737
postTask(PassOwnPtr<Task> task)4738 void Document::postTask(PassOwnPtr<Task> task)
4739 {
4740 callOnMainThread(performTask, new PerformTaskContext(m_weakReference, task));
4741 }
4742
suspendScriptedAnimationControllerCallbacks()4743 void Document::suspendScriptedAnimationControllerCallbacks()
4744 {
4745 #if ENABLE(REQUEST_ANIMATION_FRAME)
4746 if (m_scriptedAnimationController)
4747 m_scriptedAnimationController->suspend();
4748 #endif
4749 }
4750
resumeScriptedAnimationControllerCallbacks()4751 void Document::resumeScriptedAnimationControllerCallbacks()
4752 {
4753 #if ENABLE(REQUEST_ANIMATION_FRAME)
4754 if (m_scriptedAnimationController)
4755 m_scriptedAnimationController->resume();
4756 #endif
4757 }
4758
displayStringModifiedByEncoding(const String & str) const4759 String Document::displayStringModifiedByEncoding(const String& str) const
4760 {
4761 if (m_decoder)
4762 return m_decoder->encoding().displayString(str.impl());
4763 return str;
4764 }
4765
displayStringModifiedByEncoding(PassRefPtr<StringImpl> str) const4766 PassRefPtr<StringImpl> Document::displayStringModifiedByEncoding(PassRefPtr<StringImpl> str) const
4767 {
4768 if (m_decoder)
4769 return m_decoder->encoding().displayString(str);
4770 return str;
4771 }
4772
displayBufferModifiedByEncoding(UChar * buffer,unsigned len) const4773 void Document::displayBufferModifiedByEncoding(UChar* buffer, unsigned len) const
4774 {
4775 if (m_decoder)
4776 m_decoder->encoding().displayBuffer(buffer, len);
4777 }
4778
enqueuePageshowEvent(PageshowEventPersistence persisted)4779 void Document::enqueuePageshowEvent(PageshowEventPersistence persisted)
4780 {
4781 // FIXME: https://bugs.webkit.org/show_bug.cgi?id=36334 Pageshow event needs to fire asynchronously.
4782 dispatchWindowEvent(PageTransitionEvent::create(eventNames().pageshowEvent, persisted), this);
4783 }
4784
enqueueHashchangeEvent(const String & oldURL,const String & newURL)4785 void Document::enqueueHashchangeEvent(const String& oldURL, const String& newURL)
4786 {
4787 enqueueWindowEvent(HashChangeEvent::create(oldURL, newURL));
4788 }
4789
enqueuePopstateEvent(PassRefPtr<SerializedScriptValue> stateObject)4790 void Document::enqueuePopstateEvent(PassRefPtr<SerializedScriptValue> stateObject)
4791 {
4792 // FIXME: https://bugs.webkit.org/show_bug.cgi?id=36202 Popstate event needs to fire asynchronously
4793 dispatchWindowEvent(PopStateEvent::create(stateObject));
4794 }
4795
addMediaCanStartListener(MediaCanStartListener * listener)4796 void Document::addMediaCanStartListener(MediaCanStartListener* listener)
4797 {
4798 ASSERT(!m_mediaCanStartListeners.contains(listener));
4799 m_mediaCanStartListeners.add(listener);
4800 }
4801
removeMediaCanStartListener(MediaCanStartListener * listener)4802 void Document::removeMediaCanStartListener(MediaCanStartListener* listener)
4803 {
4804 ASSERT(m_mediaCanStartListeners.contains(listener));
4805 m_mediaCanStartListeners.remove(listener);
4806 }
4807
takeAnyMediaCanStartListener()4808 MediaCanStartListener* Document::takeAnyMediaCanStartListener()
4809 {
4810 HashSet<MediaCanStartListener*>::iterator slot = m_mediaCanStartListeners.begin();
4811 if (slot == m_mediaCanStartListeners.end())
4812 return 0;
4813 MediaCanStartListener* listener = *slot;
4814 m_mediaCanStartListeners.remove(slot);
4815 return listener;
4816 }
4817
4818 #if ENABLE(XHTMLMP)
isXHTMLMPDocument() const4819 bool Document::isXHTMLMPDocument() const
4820 {
4821 if (!frame() || !frame()->loader())
4822 return false;
4823 // As per section 7.2 of OMA-WAP-XHTMLMP-V1_1-20061020-A.pdf, a conforming user agent
4824 // MUST accept XHTMLMP document identified as "application/vnd.wap.xhtml+xml"
4825 // and SHOULD accept it identified as "application/xhtml+xml" , "application/xhtml+xml" is a
4826 // general MIME type for all XHTML documents, not only for XHTMLMP
4827 return loader()->writer()->mimeType() == "application/vnd.wap.xhtml+xml";
4828 }
4829 #endif
4830
4831 #if ENABLE(FULLSCREEN_API)
fullScreenIsAllowedForElement(Element * element) const4832 bool Document::fullScreenIsAllowedForElement(Element* element) const
4833 {
4834 ASSERT(element);
4835 while (HTMLFrameOwnerElement* ownerElement = element->document()->ownerElement()) {
4836 if (!ownerElement->hasTagName(frameTag) && !ownerElement->hasTagName(iframeTag))
4837 continue;
4838
4839 if (!static_cast<HTMLFrameElementBase*>(ownerElement)->allowFullScreen())
4840 return false;
4841 element = ownerElement;
4842 }
4843 return true;
4844 }
4845
webkitRequestFullScreenForElement(Element * element,unsigned short flags)4846 void Document::webkitRequestFullScreenForElement(Element* element, unsigned short flags)
4847 {
4848 if (!page() || !page()->settings()->fullScreenEnabled())
4849 return;
4850
4851 if (!element)
4852 element = documentElement();
4853
4854 if (!fullScreenIsAllowedForElement(element))
4855 return;
4856
4857 if (!ScriptController::processingUserGesture())
4858 return;
4859
4860 if (!page()->chrome()->client()->supportsFullScreenForElement(element, flags & Element::ALLOW_KEYBOARD_INPUT))
4861 return;
4862
4863 m_areKeysEnabledInFullScreen = flags & Element::ALLOW_KEYBOARD_INPUT;
4864 page()->chrome()->client()->enterFullScreenForElement(element);
4865 }
4866
webkitCancelFullScreen()4867 void Document::webkitCancelFullScreen()
4868 {
4869 if (!page() || !m_fullScreenElement)
4870 return;
4871
4872 page()->chrome()->client()->exitFullScreenForElement(m_fullScreenElement.get());
4873 #if PLATFORM(ANDROID)
4874 // The next time we try to enter full screen, we need this change to know
4875 // we are not in full screen any more.
4876 m_fullScreenElement = 0;
4877 #endif
4878 }
4879
webkitWillEnterFullScreenForElement(Element * element)4880 void Document::webkitWillEnterFullScreenForElement(Element* element)
4881 {
4882 ASSERT(element);
4883 ASSERT(page() && page()->settings()->fullScreenEnabled());
4884
4885 m_fullScreenElement = element;
4886
4887 #if PLATFORM(ANDROID)
4888 // Our approach on Poster handling is android specific: we are passing the
4889 // poster from java side to native and we can't keep the content if the
4890 // video element is detached and its RenderLayer object is deleted.
4891 if(!(m_fullScreenElement->hasTagName(HTMLNames::videoTag))) {
4892 #endif
4893 if (m_fullScreenElement != documentElement())
4894 m_fullScreenElement->detach();
4895
4896 recalcStyle(Force);
4897 #if PLATFORM(ANDROID)
4898 }
4899 #endif
4900
4901 if (m_fullScreenRenderer) {
4902 m_fullScreenRenderer->setAnimating(true);
4903 #if USE(ACCELERATED_COMPOSITING)
4904 view()->updateCompositingLayers();
4905 if (m_fullScreenRenderer->layer()->isComposited())
4906 page()->chrome()->client()->setRootFullScreenLayer(m_fullScreenRenderer->layer()->backing()->graphicsLayer());
4907 #endif
4908 }
4909 }
4910
webkitDidEnterFullScreenForElement(Element *)4911 void Document::webkitDidEnterFullScreenForElement(Element*)
4912 {
4913 if (m_fullScreenRenderer) {
4914 m_fullScreenRenderer->setAnimating(false);
4915 #if USE(ACCELERATED_COMPOSITING)
4916 view()->updateCompositingLayers();
4917 page()->chrome()->client()->setRootFullScreenLayer(0);
4918 #endif
4919 }
4920 m_fullScreenChangeDelayTimer.startOneShot(0);
4921 }
4922
webkitWillExitFullScreenForElement(Element *)4923 void Document::webkitWillExitFullScreenForElement(Element*)
4924 {
4925 if (m_fullScreenRenderer) {
4926 m_fullScreenRenderer->setAnimating(true);
4927 #if USE(ACCELERATED_COMPOSITING)
4928 view()->updateCompositingLayers();
4929 if (m_fullScreenRenderer->layer()->isComposited())
4930 page()->chrome()->client()->setRootFullScreenLayer(m_fullScreenRenderer->layer()->backing()->graphicsLayer());
4931 #endif
4932 }
4933 }
4934
webkitDidExitFullScreenForElement(Element *)4935 void Document::webkitDidExitFullScreenForElement(Element*)
4936 {
4937 m_areKeysEnabledInFullScreen = false;
4938
4939 if (m_fullScreenRenderer)
4940 m_fullScreenRenderer->remove();
4941
4942 if (m_fullScreenElement != documentElement())
4943 m_fullScreenElement->detach();
4944
4945 m_fullScreenElement = 0;
4946 setFullScreenRenderer(0);
4947 #if USE(ACCELERATED_COMPOSITING)
4948 page()->chrome()->client()->setRootFullScreenLayer(0);
4949 #endif
4950 recalcStyle(Force);
4951
4952 m_fullScreenChangeDelayTimer.startOneShot(0);
4953 }
4954
setFullScreenRenderer(RenderFullScreen * renderer)4955 void Document::setFullScreenRenderer(RenderFullScreen* renderer)
4956 {
4957 if (renderer == m_fullScreenRenderer)
4958 return;
4959
4960 if (m_fullScreenRenderer)
4961 m_fullScreenRenderer->destroy();
4962 m_fullScreenRenderer = renderer;
4963
4964 // This notification can come in after the page has been destroyed.
4965 if (page())
4966 page()->chrome()->client()->fullScreenRendererChanged(m_fullScreenRenderer);
4967 }
4968
setFullScreenRendererSize(const IntSize & size)4969 void Document::setFullScreenRendererSize(const IntSize& size)
4970 {
4971 ASSERT(m_fullScreenRenderer);
4972 if (!m_fullScreenRenderer)
4973 return;
4974
4975 if (m_fullScreenRenderer) {
4976 RefPtr<RenderStyle> newStyle = RenderStyle::clone(m_fullScreenRenderer->style());
4977 newStyle->setWidth(Length(size.width(), WebCore::Fixed));
4978 newStyle->setHeight(Length(size.height(), WebCore::Fixed));
4979 newStyle->setTop(Length(0, WebCore::Fixed));
4980 newStyle->setLeft(Length(0, WebCore::Fixed));
4981 m_fullScreenRenderer->setStyle(newStyle);
4982 updateLayout();
4983 }
4984 }
4985
setFullScreenRendererBackgroundColor(Color backgroundColor)4986 void Document::setFullScreenRendererBackgroundColor(Color backgroundColor)
4987 {
4988 if (!m_fullScreenRenderer)
4989 return;
4990
4991 RefPtr<RenderStyle> newStyle = RenderStyle::clone(m_fullScreenRenderer->style());
4992 newStyle->setBackgroundColor(backgroundColor);
4993 m_fullScreenRenderer->setStyle(newStyle);
4994 }
4995
fullScreenChangeDelayTimerFired(Timer<Document> *)4996 void Document::fullScreenChangeDelayTimerFired(Timer<Document>*)
4997 {
4998 Element* element = m_fullScreenElement.get();
4999 if (!element)
5000 element = documentElement();
5001
5002 element->dispatchEvent(Event::create(eventNames().webkitfullscreenchangeEvent, true, false));
5003 }
5004
5005 #endif
5006
decrementLoadEventDelayCount()5007 void Document::decrementLoadEventDelayCount()
5008 {
5009 ASSERT(m_loadEventDelayCount);
5010 --m_loadEventDelayCount;
5011
5012 if (frame() && !m_loadEventDelayCount && !m_loadEventDelayTimer.isActive())
5013 m_loadEventDelayTimer.startOneShot(0);
5014 }
5015
loadEventDelayTimerFired(Timer<Document> *)5016 void Document::loadEventDelayTimerFired(Timer<Document>*)
5017 {
5018 if (frame())
5019 frame()->loader()->checkCompleted();
5020 }
5021
5022 #if ENABLE(REQUEST_ANIMATION_FRAME)
webkitRequestAnimationFrame(PassRefPtr<RequestAnimationFrameCallback> callback,Element * animationElement)5023 int Document::webkitRequestAnimationFrame(PassRefPtr<RequestAnimationFrameCallback> callback, Element* animationElement)
5024 {
5025 if (!m_scriptedAnimationController)
5026 m_scriptedAnimationController = ScriptedAnimationController::create(this);
5027
5028 return m_scriptedAnimationController->registerCallback(callback, animationElement);
5029 }
5030
webkitCancelRequestAnimationFrame(int id)5031 void Document::webkitCancelRequestAnimationFrame(int id)
5032 {
5033 if (!m_scriptedAnimationController)
5034 return;
5035 m_scriptedAnimationController->cancelCallback(id);
5036 }
5037
serviceScriptedAnimations(DOMTimeStamp time)5038 void Document::serviceScriptedAnimations(DOMTimeStamp time)
5039 {
5040 if (!m_scriptedAnimationController)
5041 return;
5042 m_scriptedAnimationController->serviceScriptedAnimations(time);
5043 }
5044 #endif
5045
5046 #if ENABLE(TOUCH_EVENTS)
createTouch(DOMWindow * window,EventTarget * target,int identifier,int pageX,int pageY,int screenX,int screenY,ExceptionCode &) const5047 PassRefPtr<Touch> Document::createTouch(DOMWindow* window, EventTarget* target, int identifier, int pageX, int pageY, int screenX, int screenY, ExceptionCode&) const
5048 {
5049 // FIXME: It's not clear from the documentation at
5050 // http://developer.apple.com/library/safari/#documentation/UserExperience/Reference/DocumentAdditionsReference/DocumentAdditions/DocumentAdditions.html
5051 // when this method should throw and nor is it by inspection of iOS behavior. It would be nice to verify any cases where it throws under iOS
5052 // and implement them here. See https://bugs.webkit.org/show_bug.cgi?id=47819
5053 // Ditto for the createTouchList method below.
5054 Frame* frame = window ? window->frame() : this->frame();
5055 return Touch::create(frame, target, identifier, screenX, screenY, pageX, pageY);
5056 }
5057
createTouchList(ExceptionCode &) const5058 PassRefPtr<TouchList> Document::createTouchList(ExceptionCode&) const
5059 {
5060 return TouchList::create();
5061 }
5062 #endif
5063
loader() const5064 DocumentLoader* Document::loader() const
5065 {
5066 if (!m_frame)
5067 return 0;
5068
5069 DocumentLoader* loader = m_frame->loader()->activeDocumentLoader();
5070 if (!loader)
5071 return 0;
5072
5073 #if PLATFORM(ANDROID)
5074 // Temporary hack for http://b/5188895
5075 bool isDocumentUpToDate = m_frame->isDocumentUpToDate();
5076 #else
5077 bool isDocumentUpToDate = true;
5078 #endif
5079 if (isDocumentUpToDate && m_frame->document() != this)
5080 return 0;
5081
5082 return loader;
5083 }
5084
5085 } // namespace WebCore
5086