1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2001 Dirk Mueller (mueller (at) kde.org) 5 * (C) 2006 Alexey Proskuryakov (ap (at) webkit.org) 6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved. 7 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) 8 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) 9 * Copyright (C) 2011 Google Inc. All rights reserved. 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 28 #ifndef Document_h 29 #define Document_h 30 31 #include "bindings/core/v8/ExceptionStatePlaceholder.h" 32 #include "bindings/core/v8/ScriptValue.h" 33 #include "core/animation/AnimationClock.h" 34 #include "core/animation/CompositorPendingAnimations.h" 35 #include "core/dom/ContainerNode.h" 36 #include "core/dom/DocumentEncodingData.h" 37 #include "core/dom/DocumentInit.h" 38 #include "core/dom/DocumentLifecycle.h" 39 #include "core/dom/DocumentSupplementable.h" 40 #include "core/dom/DocumentTiming.h" 41 #include "core/dom/ExecutionContext.h" 42 #include "core/dom/MutationObserver.h" 43 #include "core/dom/TextLinkColors.h" 44 #include "core/dom/TreeScope.h" 45 #include "core/dom/UserActionElementSet.h" 46 #include "core/dom/ViewportDescription.h" 47 #include "core/dom/custom/CustomElement.h" 48 #include "core/html/CollectionType.h" 49 #include "core/page/FocusType.h" 50 #include "core/page/PageVisibilityState.h" 51 #include "platform/Length.h" 52 #include "platform/Timer.h" 53 #include "platform/heap/Handle.h" 54 #include "platform/weborigin/KURL.h" 55 #include "platform/weborigin/ReferrerPolicy.h" 56 #include "wtf/HashSet.h" 57 #include "wtf/OwnPtr.h" 58 #include "wtf/PassOwnPtr.h" 59 #include "wtf/PassRefPtr.h" 60 #include "wtf/WeakPtr.h" 61 62 namespace blink { 63 64 class AnimationTimeline; 65 class AXObjectCache; 66 class Attr; 67 class CDATASection; 68 class CSSStyleDeclaration; 69 class CSSStyleSheet; 70 class CanvasRenderingContext2D; 71 class Chrome; 72 class Comment; 73 class ConsoleMessage; 74 class ContextFeatures; 75 class CustomElementMicrotaskRunQueue; 76 class CustomElementRegistrationContext; 77 class DOMImplementation; 78 class DocumentFragment; 79 class DocumentLifecycleNotifier; 80 class DocumentLoader; 81 class DocumentMarkerController; 82 class DocumentNameCollection; 83 class DocumentParser; 84 class DocumentState; 85 class DocumentType; 86 class Element; 87 class ElementDataCache; 88 class Event; 89 class EventFactoryBase; 90 class EventListener; 91 template <typename EventType> 92 class EventWithHitTestResults; 93 class ExceptionState; 94 class FloatQuad; 95 class FloatRect; 96 class FormController; 97 class Frame; 98 class FrameHost; 99 class FrameView; 100 class HTMLAllCollection; 101 class HTMLCanvasElement; 102 class HTMLCollection; 103 class HTMLDialogElement; 104 class HTMLElement; 105 class HTMLFrameOwnerElement; 106 class HTMLHeadElement; 107 class HTMLImportLoader; 108 class HTMLImportsController; 109 class HTMLLinkElement; 110 class HTMLScriptElement; 111 class HitTestRequest; 112 class LayoutPoint; 113 class LiveNodeListBase; 114 class Locale; 115 class LocalDOMWindow; 116 class LocalFrame; 117 class Location; 118 class MainThreadTaskRunner; 119 class MediaQueryListListener; 120 class MediaQueryMatcher; 121 class NodeFilter; 122 class NodeIterator; 123 class Page; 124 class PlatformMouseEvent; 125 class ProcessingInstruction; 126 class QualifiedName; 127 class Range; 128 class RenderView; 129 class RequestAnimationFrameCallback; 130 class ResourceFetcher; 131 class SVGDocumentExtensions; 132 class SVGUseElement; 133 class ScriptRunner; 134 class ScriptableDocumentParser; 135 class ScriptedAnimationController; 136 class SecurityOrigin; 137 class SegmentedString; 138 class SelectorQueryCache; 139 class SerializedScriptValue; 140 class Settings; 141 class StyleEngine; 142 class StyleResolver; 143 class StyleSheet; 144 class StyleSheetList; 145 class Text; 146 class TextAutosizer; 147 class Touch; 148 class TouchList; 149 class TransformSource; 150 class TreeWalker; 151 class VisitedLinkState; 152 class WebGLRenderingContext; 153 154 struct AnnotatedRegionValue; 155 struct IconURL; 156 157 typedef EventWithHitTestResults<PlatformMouseEvent> MouseEventWithHitTestResults; 158 typedef int ExceptionCode; 159 160 enum StyleResolverUpdateMode { 161 // Discards the StyleResolver and rebuilds it. 162 FullStyleUpdate, 163 // Attempts to use StyleInvalidationAnalysis to avoid discarding the entire StyleResolver. 164 AnalyzedStyleUpdate 165 }; 166 167 enum NodeListInvalidationType { 168 DoNotInvalidateOnAttributeChanges = 0, 169 InvalidateOnClassAttrChange, 170 InvalidateOnIdNameAttrChange, 171 InvalidateOnNameAttrChange, 172 InvalidateOnForAttrChange, 173 InvalidateForFormControls, 174 InvalidateOnHRefAttrChange, 175 InvalidateOnAnyAttrChange, 176 }; 177 const int numNodeListInvalidationTypes = InvalidateOnAnyAttrChange + 1; 178 179 enum DocumentClass { 180 DefaultDocumentClass = 0, 181 HTMLDocumentClass = 1, 182 XHTMLDocumentClass = 1 << 1, 183 ImageDocumentClass = 1 << 2, 184 PluginDocumentClass = 1 << 3, 185 MediaDocumentClass = 1 << 4, 186 SVGDocumentClass = 1 << 5, 187 XMLDocumentClass = 1 << 6, 188 }; 189 190 typedef unsigned char DocumentClassFlags; 191 192 class Document; 193 194 class DocumentVisibilityObserver : public WillBeGarbageCollectedMixin { 195 public: 196 DocumentVisibilityObserver(Document&); 197 virtual ~DocumentVisibilityObserver(); 198 199 virtual void didChangeVisibilityState(PageVisibilityState) = 0; 200 201 // Classes that inherit Node and DocumentVisibilityObserver must have a 202 // virtual override of Node::didMoveToNewDocument that calls 203 // DocumentVisibilityObserver::setDocument 204 void setObservedDocument(Document&); 205 206 protected: 207 virtual void trace(Visitor*); 208 209 private: 210 void registerObserver(Document&); 211 void unregisterObserver(); 212 213 RawPtrWillBeMember<Document> m_document; 214 }; 215 216 class Document : public ContainerNode, public TreeScope, public SecurityContext, public ExecutionContext 217 , public DocumentSupplementable, public LifecycleContext<Document> { 218 DEFINE_WRAPPERTYPEINFO(); 219 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Document); 220 public: 221 static PassRefPtrWillBeRawPtr<Document> create(const DocumentInit& initializer = DocumentInit()) 222 { 223 return adoptRefWillBeNoop(new Document(initializer)); 224 } 225 virtual ~Document(); 226 227 MediaQueryMatcher& mediaQueryMatcher(); 228 229 void mediaQueryAffectingValueChanged(); 230 231 #if !ENABLE(OILPAN) 232 using ContainerNode::ref; 233 using ContainerNode::deref; 234 #endif 235 using SecurityContext::securityOrigin; 236 using SecurityContext::contentSecurityPolicy; 237 using TreeScope::getElementById; 238 239 virtual bool canContainRangeEndPoint() const OVERRIDE { return true; } 240 241 SelectorQueryCache& selectorQueryCache(); 242 243 // Focus Management. 244 Element* activeElement() const; 245 bool hasFocus() const; 246 247 // DOM methods & attributes for Document 248 249 DEFINE_ATTRIBUTE_EVENT_LISTENER(beforecopy); 250 DEFINE_ATTRIBUTE_EVENT_LISTENER(beforecut); 251 DEFINE_ATTRIBUTE_EVENT_LISTENER(beforepaste); 252 DEFINE_ATTRIBUTE_EVENT_LISTENER(copy); 253 DEFINE_ATTRIBUTE_EVENT_LISTENER(cut); 254 DEFINE_ATTRIBUTE_EVENT_LISTENER(paste); 255 DEFINE_ATTRIBUTE_EVENT_LISTENER(pointerlockchange); 256 DEFINE_ATTRIBUTE_EVENT_LISTENER(pointerlockerror); 257 DEFINE_ATTRIBUTE_EVENT_LISTENER(readystatechange); 258 DEFINE_ATTRIBUTE_EVENT_LISTENER(search); 259 DEFINE_ATTRIBUTE_EVENT_LISTENER(securitypolicyviolation); 260 DEFINE_ATTRIBUTE_EVENT_LISTENER(selectionchange); 261 DEFINE_ATTRIBUTE_EVENT_LISTENER(selectstart); 262 DEFINE_ATTRIBUTE_EVENT_LISTENER(touchcancel); 263 DEFINE_ATTRIBUTE_EVENT_LISTENER(touchend); 264 DEFINE_ATTRIBUTE_EVENT_LISTENER(touchmove); 265 DEFINE_ATTRIBUTE_EVENT_LISTENER(touchstart); 266 DEFINE_ATTRIBUTE_EVENT_LISTENER(wheel); 267 268 bool shouldMergeWithLegacyDescription(ViewportDescription::Type); 269 bool shouldOverrideLegacyDescription(ViewportDescription::Type); 270 void setViewportDescription(const ViewportDescription&); 271 const ViewportDescription& viewportDescription() const { return m_viewportDescription; } 272 Length viewportDefaultMinWidth() const { return m_viewportDefaultMinWidth; } 273 274 bool hasLegacyViewportTag() const { return m_legacyViewportDescription.isLegacyViewportType(); } 275 276 void setReferrerPolicy(ReferrerPolicy); 277 ReferrerPolicy referrerPolicy() const { return m_referrerPolicy; } 278 279 String outgoingReferrer(); 280 String outgoingOrigin() const; 281 282 void setDoctype(PassRefPtrWillBeRawPtr<DocumentType>); 283 DocumentType* doctype() const { return m_docType.get(); } 284 285 DOMImplementation& implementation(); 286 287 Element* documentElement() const 288 { 289 return m_documentElement.get(); 290 } 291 292 // Returns whether the Document has an AppCache manifest. 293 bool hasAppCacheManifest() const; 294 295 Location* location() const; 296 297 PassRefPtrWillBeRawPtr<Element> createElement(const AtomicString& name, ExceptionState&); 298 PassRefPtrWillBeRawPtr<DocumentFragment> createDocumentFragment(); 299 PassRefPtrWillBeRawPtr<Text> createTextNode(const String& data); 300 PassRefPtrWillBeRawPtr<Comment> createComment(const String& data); 301 PassRefPtrWillBeRawPtr<CDATASection> createCDATASection(const String& data, ExceptionState&); 302 PassRefPtrWillBeRawPtr<ProcessingInstruction> createProcessingInstruction(const String& target, const String& data, ExceptionState&); 303 PassRefPtrWillBeRawPtr<Attr> createAttribute(const AtomicString& name, ExceptionState&); 304 PassRefPtrWillBeRawPtr<Attr> createAttributeNS(const AtomicString& namespaceURI, const AtomicString& qualifiedName, ExceptionState&, bool shouldIgnoreNamespaceChecks = false); 305 PassRefPtrWillBeRawPtr<Node> importNode(Node* importedNode, bool deep, ExceptionState&); 306 PassRefPtrWillBeRawPtr<Element> createElementNS(const AtomicString& namespaceURI, const AtomicString& qualifiedName, ExceptionState&); 307 PassRefPtrWillBeRawPtr<Element> createElement(const QualifiedName&, bool createdByParser); 308 309 bool regionBasedColumnsEnabled() const; 310 311 Element* elementFromPoint(int x, int y) const; 312 PassRefPtrWillBeRawPtr<Range> caretRangeFromPoint(int x, int y); 313 314 String readyState() const; 315 316 String defaultCharset() const; 317 318 AtomicString inputEncoding() const { return Document::encodingName(); } 319 AtomicString charset() const { return Document::encodingName(); } 320 AtomicString characterSet() const { return Document::encodingName(); } 321 322 AtomicString encodingName() const; 323 324 void setCharset(const String&); 325 326 void setContent(const String&); 327 328 String suggestedMIMEType() const; 329 void setMimeType(const AtomicString&); 330 AtomicString contentType() const; // DOM 4 document.contentType 331 332 const AtomicString& contentLanguage() const { return m_contentLanguage; } 333 void setContentLanguage(const AtomicString&); 334 335 String xmlEncoding() const { return m_xmlEncoding; } 336 String xmlVersion() const { return m_xmlVersion; } 337 enum StandaloneStatus { StandaloneUnspecified, Standalone, NotStandalone }; 338 bool xmlStandalone() const { return m_xmlStandalone == Standalone; } 339 StandaloneStatus xmlStandaloneStatus() const { return static_cast<StandaloneStatus>(m_xmlStandalone); } 340 bool hasXMLDeclaration() const { return m_hasXMLDeclaration; } 341 342 void setXMLEncoding(const String& encoding) { m_xmlEncoding = encoding; } // read-only property, only to be set from XMLDocumentParser 343 void setXMLVersion(const String&, ExceptionState&); 344 void setXMLStandalone(bool, ExceptionState&); 345 void setHasXMLDeclaration(bool hasXMLDeclaration) { m_hasXMLDeclaration = hasXMLDeclaration ? 1 : 0; } 346 347 virtual KURL baseURI() const OVERRIDE FINAL; 348 349 String visibilityState() const; 350 bool hidden() const; 351 void didChangeVisibilityState(); 352 353 PassRefPtrWillBeRawPtr<Node> adoptNode(PassRefPtrWillBeRawPtr<Node> source, ExceptionState&); 354 355 PassRefPtrWillBeRawPtr<HTMLCollection> images(); 356 PassRefPtrWillBeRawPtr<HTMLCollection> embeds(); 357 PassRefPtrWillBeRawPtr<HTMLCollection> applets(); 358 PassRefPtrWillBeRawPtr<HTMLCollection> links(); 359 PassRefPtrWillBeRawPtr<HTMLCollection> forms(); 360 PassRefPtrWillBeRawPtr<HTMLCollection> anchors(); 361 PassRefPtrWillBeRawPtr<HTMLCollection> scripts(); 362 PassRefPtrWillBeRawPtr<HTMLAllCollection> allForBinding(); 363 PassRefPtrWillBeRawPtr<HTMLAllCollection> all(); 364 365 PassRefPtrWillBeRawPtr<HTMLCollection> windowNamedItems(const AtomicString& name); 366 PassRefPtrWillBeRawPtr<DocumentNameCollection> documentNamedItems(const AtomicString& name); 367 368 bool isHTMLDocument() const { return m_documentClasses & HTMLDocumentClass; } 369 bool isXHTMLDocument() const { return m_documentClasses & XHTMLDocumentClass; } 370 bool isXMLDocument() const { return m_documentClasses & XMLDocumentClass; } 371 bool isImageDocument() const { return m_documentClasses & ImageDocumentClass; } 372 bool isSVGDocument() const { return m_documentClasses & SVGDocumentClass; } 373 bool isPluginDocument() const { return m_documentClasses & PluginDocumentClass; } 374 bool isMediaDocument() const { return m_documentClasses & MediaDocumentClass; } 375 376 bool hasSVGRootNode() const; 377 378 bool isFrameSet() const; 379 380 bool isSrcdocDocument() const { return m_isSrcdocDocument; } 381 bool isMobileDocument() const { return m_isMobileDocument; } 382 383 bool isTransitionDocument() const { return m_isTransitionDocument; } 384 void setIsTransitionDocument() { m_isTransitionDocument = true; } 385 void hideTransitionElements(const AtomicString& cssSelector); 386 387 struct TransitionElementData { 388 String scope; 389 String selector; 390 String markup; 391 }; 392 void getTransitionElementData(Vector<TransitionElementData>&); 393 394 StyleResolver* styleResolver() const; 395 StyleResolver& ensureStyleResolver() const; 396 397 bool isViewSource() const { return m_isViewSource; } 398 void setIsViewSource(bool); 399 400 bool sawElementsInKnownNamespaces() const { return m_sawElementsInKnownNamespaces; } 401 402 bool isRenderingReady() const { return haveImportsLoaded() && haveStylesheetsLoaded(); } 403 bool isScriptExecutionReady() const { return isRenderingReady(); } 404 405 // This is a DOM function. 406 StyleSheetList* styleSheets(); 407 408 StyleEngine* styleEngine() { return m_styleEngine.get(); } 409 410 bool gotoAnchorNeededAfterStylesheetsLoad() { return m_gotoAnchorNeededAfterStylesheetsLoad; } 411 void setGotoAnchorNeededAfterStylesheetsLoad(bool b) { m_gotoAnchorNeededAfterStylesheetsLoad = b; } 412 413 // Called when one or more stylesheets in the document may have been added, removed, or changed. 414 void styleResolverChanged(StyleResolverUpdateMode = FullStyleUpdate); 415 void styleResolverMayHaveChanged(); 416 417 // FIXME: Switch all callers of styleResolverChanged to these or better ones and then make them 418 // do something smarter. 419 void removedStyleSheet(StyleSheet*, StyleResolverUpdateMode = FullStyleUpdate); 420 void addedStyleSheet(StyleSheet*) { styleResolverChanged(); } 421 void modifiedStyleSheet(StyleSheet*, StyleResolverUpdateMode = FullStyleUpdate); 422 void changedSelectorWatch() { styleResolverChanged(); } 423 424 void scheduleUseShadowTreeUpdate(SVGUseElement&); 425 void unscheduleUseShadowTreeUpdate(SVGUseElement&); 426 427 // FIXME: SVG filters should change to store the filter on the RenderStyle 428 // instead of the RenderObject so we can get rid of this hack. 429 void scheduleSVGFilterLayerUpdateHack(Element&); 430 void unscheduleSVGFilterLayerUpdateHack(Element&); 431 432 void evaluateMediaQueryList(); 433 434 FormController& formController(); 435 DocumentState* formElementsState() const; 436 void setStateForNewFormElements(const Vector<String>&); 437 438 FrameView* view() const; // can be null 439 LocalFrame* frame() const { return m_frame; } // can be null 440 FrameHost* frameHost() const; // can be null 441 Page* page() const; // can be null 442 Settings* settings() const; // can be null 443 444 float devicePixelRatio() const; 445 446 PassRefPtrWillBeRawPtr<Range> createRange(); 447 448 PassRefPtrWillBeRawPtr<NodeIterator> createNodeIterator(Node* root, unsigned whatToShow, PassRefPtrWillBeRawPtr<NodeFilter>, ExceptionState&); 449 PassRefPtrWillBeRawPtr<TreeWalker> createTreeWalker(Node* root, unsigned whatToShow, PassRefPtrWillBeRawPtr<NodeFilter>, ExceptionState&); 450 451 // Special support for editing 452 PassRefPtrWillBeRawPtr<Text> createEditingTextNode(const String&); 453 454 void setupFontBuilder(RenderStyle* documentStyle); 455 456 bool needsRenderTreeUpdate() const; 457 void updateRenderTreeIfNeeded() { updateRenderTree(NoChange); } 458 void updateRenderTreeForNodeIfNeeded(Node*); 459 void updateLayout(); 460 enum RunPostLayoutTasks { 461 RunPostLayoutTasksAsyhnchronously, 462 RunPostLayoutTasksSynchronously, 463 }; 464 void updateLayoutIgnorePendingStylesheets(RunPostLayoutTasks = RunPostLayoutTasksAsyhnchronously); 465 PassRefPtr<RenderStyle> styleForElementIgnoringPendingStylesheets(Element*); 466 PassRefPtr<RenderStyle> styleForPage(int pageIndex); 467 468 void updateDistributionForNodeIfNeeded(Node*); 469 470 // Returns true if page box (margin boxes and page borders) is visible. 471 bool isPageBoxVisible(int pageIndex); 472 473 // Returns the preferred page size and margins in pixels, assuming 96 474 // pixels per inch. pageSize, marginTop, marginRight, marginBottom, 475 // marginLeft must be initialized to the default values that are used if 476 // auto is specified. 477 void pageSizeAndMarginsInPixels(int pageIndex, IntSize& pageSize, int& marginTop, int& marginRight, int& marginBottom, int& marginLeft); 478 479 ResourceFetcher* fetcher() { return m_fetcher.get(); } 480 481 virtual void attach(const AttachContext& = AttachContext()) OVERRIDE; 482 virtual void detach(const AttachContext& = AttachContext()) OVERRIDE; 483 void prepareForDestruction(); 484 485 // If you have a Document, use renderView() instead which is faster. 486 void renderer() const WTF_DELETED_FUNCTION; 487 488 RenderView* renderView() const { return m_renderView; } 489 490 Document& axObjectCacheOwner() const; 491 AXObjectCache* existingAXObjectCache() const; 492 AXObjectCache* axObjectCache() const; 493 void clearAXObjectCache(); 494 495 // to get visually ordered hebrew and arabic pages right 496 bool visuallyOrdered() const { return m_visuallyOrdered; } 497 498 DocumentLoader* loader() const; 499 500 void open(Document* ownerDocument = 0, ExceptionState& = ASSERT_NO_EXCEPTION); 501 PassRefPtrWillBeRawPtr<DocumentParser> implicitOpen(); 502 503 // close() is the DOM API document.close() 504 void close(ExceptionState& = ASSERT_NO_EXCEPTION); 505 // In some situations (see the code), we ignore document.close(). 506 // explicitClose() bypass these checks and actually tries to close the 507 // input stream. 508 void explicitClose(); 509 // implicitClose() actually does the work of closing the input stream. 510 void implicitClose(); 511 512 bool dispatchBeforeUnloadEvent(Chrome&, bool&); 513 void dispatchUnloadEvents(); 514 515 enum PageDismissalType { 516 NoDismissal = 0, 517 BeforeUnloadDismissal = 1, 518 PageHideDismissal = 2, 519 UnloadDismissal = 3 520 }; 521 PageDismissalType pageDismissalEventBeingDispatched() const; 522 523 void cancelParsing(); 524 525 void write(const SegmentedString& text, Document* ownerDocument = 0, ExceptionState& = ASSERT_NO_EXCEPTION); 526 void write(const String& text, Document* ownerDocument = 0, ExceptionState& = ASSERT_NO_EXCEPTION); 527 void writeln(const String& text, Document* ownerDocument = 0, ExceptionState& = ASSERT_NO_EXCEPTION); 528 529 bool wellFormed() const { return m_wellFormed; } 530 531 const KURL& url() const { return m_url; } 532 void setURL(const KURL&); 533 534 // To understand how these concepts relate to one another, please see the 535 // comments surrounding their declaration. 536 const KURL& baseURL() const { return m_baseURL; } 537 void setBaseURLOverride(const KURL&); 538 const KURL& baseURLOverride() const { return m_baseURLOverride; } 539 const KURL& baseElementURL() const { return m_baseElementURL; } 540 const AtomicString& baseTarget() const { return m_baseTarget; } 541 void processBaseElement(); 542 543 KURL completeURL(const String&) const; 544 KURL completeURLWithOverride(const String&, const KURL& baseURLOverride) const; 545 546 virtual String userAgent(const KURL&) const OVERRIDE FINAL; 547 virtual void disableEval(const String& errorMessage) OVERRIDE FINAL; 548 549 bool canNavigate(const Frame& targetFrame); 550 LocalFrame* findUnsafeParentScrollPropagationBoundary(); 551 552 CSSStyleSheet& elementSheet(); 553 554 virtual PassRefPtrWillBeRawPtr<DocumentParser> createParser(); 555 DocumentParser* parser() const { return m_parser.get(); } 556 ScriptableDocumentParser* scriptableDocumentParser() const; 557 558 bool printing() const { return m_printing; } 559 void setPrinting(bool p) { m_printing = p; } 560 561 bool paginatedForScreen() const { return m_paginatedForScreen; } 562 void setPaginatedForScreen(bool p) { m_paginatedForScreen = p; } 563 564 bool paginated() const { return printing() || paginatedForScreen(); } 565 566 enum CompatibilityMode { QuirksMode, LimitedQuirksMode, NoQuirksMode }; 567 568 void setCompatibilityMode(CompatibilityMode m); 569 CompatibilityMode compatibilityMode() const { return m_compatibilityMode; } 570 571 String compatMode() const; 572 573 bool inQuirksMode() const { return m_compatibilityMode == QuirksMode; } 574 bool inLimitedQuirksMode() const { return m_compatibilityMode == LimitedQuirksMode; } 575 bool inNoQuirksMode() const { return m_compatibilityMode == NoQuirksMode; } 576 577 enum ReadyState { 578 Loading, 579 Interactive, 580 Complete 581 }; 582 void setReadyState(ReadyState); 583 bool isLoadCompleted(); 584 585 void setParsing(bool); 586 bool parsing() const { return m_isParsing; } 587 588 bool shouldScheduleLayout() const; 589 int elapsedTime() const; 590 591 TextLinkColors& textLinkColors() { return m_textLinkColors; } 592 VisitedLinkState& visitedLinkState() const { return *m_visitedLinkState; } 593 594 MouseEventWithHitTestResults prepareMouseEvent(const HitTestRequest&, const LayoutPoint&, const PlatformMouseEvent&); 595 596 /* Newly proposed CSS3 mechanism for selecting alternate 597 stylesheets using the DOM. May be subject to change as 598 spec matures. - dwh 599 */ 600 String preferredStylesheetSet() const; 601 String selectedStylesheetSet() const; 602 void setSelectedStylesheetSet(const String&); 603 604 bool setFocusedElement(PassRefPtrWillBeRawPtr<Element>, FocusType = FocusTypeNone); 605 Element* focusedElement() const { return m_focusedElement.get(); } 606 UserActionElementSet& userActionElements() { return m_userActionElements; } 607 const UserActionElementSet& userActionElements() const { return m_userActionElements; } 608 void setNeedsFocusedElementCheck(); 609 void setAutofocusElement(Element*); 610 Element* autofocusElement() const { return m_autofocusElement.get(); } 611 612 void setActiveHoverElement(PassRefPtrWillBeRawPtr<Element>); 613 Element* activeHoverElement() const { return m_activeHoverElement.get(); } 614 615 void removeFocusedElementOfSubtree(Node*, bool amongChildrenOnly = false); 616 void hoveredNodeDetached(Node*); 617 void activeChainNodeDetached(Node*); 618 619 void updateHoverActiveState(const HitTestRequest&, Element*, const PlatformMouseEvent* = 0); 620 621 // Updates for :target (CSS3 selector). 622 void setCSSTarget(Element*); 623 Element* cssTarget() const { return m_cssTarget; } 624 625 void scheduleRenderTreeUpdateIfNeeded(); 626 bool hasPendingForcedStyleRecalc() const; 627 628 void registerNodeList(const LiveNodeListBase*); 629 void unregisterNodeList(const LiveNodeListBase*); 630 void registerNodeListWithIdNameCache(const LiveNodeListBase*); 631 void unregisterNodeListWithIdNameCache(const LiveNodeListBase*); 632 bool shouldInvalidateNodeListCaches(const QualifiedName* attrName = 0) const; 633 void invalidateNodeListCaches(const QualifiedName* attrName); 634 635 void attachNodeIterator(NodeIterator*); 636 void detachNodeIterator(NodeIterator*); 637 void moveNodeIteratorsToNewDocument(Node&, Document&); 638 639 void attachRange(Range*); 640 void detachRange(Range*); 641 642 void updateRangesAfterChildrenChanged(ContainerNode*); 643 void updateRangesAfterNodeMovedToAnotherDocument(const Node&); 644 // nodeChildrenWillBeRemoved is used when removing all node children at once. 645 void nodeChildrenWillBeRemoved(ContainerNode&); 646 // nodeWillBeRemoved is only safe when removing one node at a time. 647 void nodeWillBeRemoved(Node&); 648 bool canReplaceChild(const Node& newChild, const Node& oldChild) const; 649 650 void didInsertText(Node*, unsigned offset, unsigned length); 651 void didRemoveText(Node*, unsigned offset, unsigned length); 652 void didMergeTextNodes(Text& oldNode, unsigned offset); 653 void didSplitTextNode(Text& oldNode); 654 655 void clearDOMWindow() { m_domWindow = nullptr; } 656 LocalDOMWindow* domWindow() const { return m_domWindow; } 657 658 // Helper functions for forwarding LocalDOMWindow event related tasks to the LocalDOMWindow if it exists. 659 void setWindowAttributeEventListener(const AtomicString& eventType, PassRefPtr<EventListener>); 660 EventListener* getWindowAttributeEventListener(const AtomicString& eventType); 661 662 static void registerEventFactory(PassOwnPtr<EventFactoryBase>); 663 static PassRefPtrWillBeRawPtr<Event> createEvent(const String& eventType, ExceptionState&); 664 665 // keep track of what types of event listeners are registered, so we don't 666 // dispatch events unnecessarily 667 enum ListenerType { 668 DOMSUBTREEMODIFIED_LISTENER = 1, 669 DOMNODEINSERTED_LISTENER = 1 << 1, 670 DOMNODEREMOVED_LISTENER = 1 << 2, 671 DOMNODEREMOVEDFROMDOCUMENT_LISTENER = 1 << 3, 672 DOMNODEINSERTEDINTODOCUMENT_LISTENER = 1 << 4, 673 DOMCHARACTERDATAMODIFIED_LISTENER = 1 << 5, 674 OVERFLOWCHANGED_LISTENER = 1 << 6, 675 ANIMATIONEND_LISTENER = 1 << 7, 676 ANIMATIONSTART_LISTENER = 1 << 8, 677 ANIMATIONITERATION_LISTENER = 1 << 9, 678 TRANSITIONEND_LISTENER = 1 << 10, 679 SCROLL_LISTENER = 1 << 12 680 // 4 bits remaining 681 }; 682 683 bool hasListenerType(ListenerType listenerType) const { return (m_listenerTypes & listenerType); } 684 void addListenerTypeIfNeeded(const AtomicString& eventType); 685 686 bool hasMutationObserversOfType(MutationObserver::MutationType type) const 687 { 688 return m_mutationObserverTypes & type; 689 } 690 bool hasMutationObservers() const { return m_mutationObserverTypes; } 691 void addMutationObserverTypes(MutationObserverOptions types) { m_mutationObserverTypes |= types; } 692 693 CSSStyleDeclaration* getOverrideStyle(Element*, const String& pseudoElt); 694 695 /** 696 * Handles a HTTP header equivalent set by a meta tag using <meta http-equiv="..." content="...">. This is called 697 * when a meta tag is encountered during document parsing, and also when a script dynamically changes or adds a meta 698 * tag. This enables scripts to use meta tags to perform refreshes and set expiry dates in addition to them being 699 * specified in a HTML file. 700 * 701 * @param equiv The http header name (value of the meta tag's "equiv" attribute) 702 * @param content The header value (value of the meta tag's "content" attribute) 703 * @param inDocumentHeadElement Is the element in the document's <head> element? 704 */ 705 void processHttpEquiv(const AtomicString& equiv, const AtomicString& content, bool inDocumentHeadElement); 706 void updateViewportDescription(); 707 void processReferrerPolicy(const String& policy); 708 709 // Returns the owning element in the parent document. 710 // Returns 0 if this is the top level document. 711 HTMLFrameOwnerElement* ownerElement() const; 712 713 // Returns true if this document belongs to a frame that the parent document 714 // made invisible (for instance by setting as style display:none). 715 bool isInInvisibleSubframe() const; 716 717 String title() const { return m_title; } 718 void setTitle(const String&); 719 720 Element* titleElement() const { return m_titleElement.get(); } 721 void setTitleElement(Element*); 722 void removeTitle(Element* titleElement); 723 724 const AtomicString& dir(); 725 void setDir(const AtomicString&); 726 727 String cookie(ExceptionState&) const; 728 void setCookie(const String&, ExceptionState&); 729 730 const AtomicString& referrer() const; 731 732 String domain() const; 733 void setDomain(const String& newDomain, ExceptionState&); 734 735 String lastModified() const; 736 737 // The cookieURL is used to query the cookie database for this document's 738 // cookies. For example, if the cookie URL is http://example.com, we'll 739 // use the non-Secure cookies for example.com when computing 740 // document.cookie. 741 // 742 // Q: How is the cookieURL different from the document's URL? 743 // A: The two URLs are the same almost all the time. However, if one 744 // document inherits the security context of another document, it 745 // inherits its cookieURL but not its URL. 746 // 747 const KURL& cookieURL() const { return m_cookieURL; } 748 void setCookieURL(const KURL& url) { m_cookieURL = url; } 749 750 const KURL& firstPartyForCookies() const; 751 752 // The following implements the rule from HTML 4 for what valid names are. 753 // To get this right for all the XML cases, we probably have to improve this or move it 754 // and make it sensitive to the type of document. 755 static bool isValidName(const String&); 756 757 // The following breaks a qualified name into a prefix and a local name. 758 // It also does a validity check, and returns false if the qualified name 759 // is invalid. It also sets ExceptionCode when name is invalid. 760 static bool parseQualifiedName(const AtomicString& qualifiedName, AtomicString& prefix, AtomicString& localName, ExceptionState&); 761 762 // Checks to make sure prefix and namespace do not conflict (per DOM Core 3) 763 static bool hasValidNamespaceForElements(const QualifiedName&); 764 static bool hasValidNamespaceForAttributes(const QualifiedName&); 765 766 HTMLElement* body() const; 767 void setBody(PassRefPtrWillBeRawPtr<HTMLElement>, ExceptionState&); 768 769 HTMLHeadElement* head() const; 770 771 // Decide which element is to define the viewport's overflow policy. If |rootStyle| is set, use 772 // that as the style for the root element, rather than obtaining it on our own. The reason for 773 // this is that style may not have been associated with the elements yet - in which case it may 774 // have been calculated on the fly (without associating it with the actual element) somewhere. 775 Element* viewportDefiningElement(RenderStyle* rootStyle = 0) const; 776 777 DocumentMarkerController& markers() const { return *m_markers; } 778 779 bool directionSetOnDocumentElement() const { return m_directionSetOnDocumentElement; } 780 bool writingModeSetOnDocumentElement() const { return m_writingModeSetOnDocumentElement; } 781 void setDirectionSetOnDocumentElement(bool b) { m_directionSetOnDocumentElement = b; } 782 void setWritingModeSetOnDocumentElement(bool b) { m_writingModeSetOnDocumentElement = b; } 783 784 bool execCommand(const String& command, bool userInterface = false, const String& value = String()); 785 bool queryCommandEnabled(const String& command); 786 bool queryCommandIndeterm(const String& command); 787 bool queryCommandState(const String& command); 788 bool queryCommandSupported(const String& command); 789 String queryCommandValue(const String& command); 790 791 KURL openSearchDescriptionURL(); 792 793 // designMode support 794 enum InheritedBool { off = false, on = true, inherit }; 795 void setDesignMode(InheritedBool value); 796 InheritedBool getDesignMode() const; 797 bool inDesignMode() const; 798 String designMode() const; 799 void setDesignMode(const String&); 800 801 Document* parentDocument() const; 802 Document& topDocument() const; 803 WeakPtrWillBeRawPtr<Document> contextDocument(); 804 805 ScriptRunner* scriptRunner() { return m_scriptRunner.get(); } 806 807 HTMLScriptElement* currentScript() const { return !m_currentScriptStack.isEmpty() ? m_currentScriptStack.last().get() : 0; } 808 void pushCurrentScript(PassRefPtrWillBeRawPtr<HTMLScriptElement>); 809 void popCurrentScript(); 810 811 void applyXSLTransform(ProcessingInstruction* pi); 812 PassRefPtrWillBeRawPtr<Document> transformSourceDocument() { return m_transformSourceDocument; } 813 void setTransformSourceDocument(Document* doc) { m_transformSourceDocument = doc; } 814 815 void setTransformSource(PassOwnPtr<TransformSource>); 816 TransformSource* transformSource() const { return m_transformSource.get(); } 817 818 void incDOMTreeVersion() { ASSERT(m_lifecycle.stateAllowsTreeMutations()); m_domTreeVersion = ++s_globalTreeVersion; } 819 uint64_t domTreeVersion() const { return m_domTreeVersion; } 820 821 enum PendingSheetLayout { NoLayoutWithPendingSheets, DidLayoutWithPendingSheets, IgnoreLayoutWithPendingSheets }; 822 823 bool didLayoutWithPendingStylesheets() const { return m_pendingSheetLayout == DidLayoutWithPendingSheets; } 824 bool ignoreLayoutWithPendingStylesheets() const { return m_pendingSheetLayout == IgnoreLayoutWithPendingSheets; } 825 826 bool hasNodesWithPlaceholderStyle() const { return m_hasNodesWithPlaceholderStyle; } 827 void setHasNodesWithPlaceholderStyle() { m_hasNodesWithPlaceholderStyle = true; } 828 829 Vector<IconURL> iconURLs(int iconTypesMask); 830 831 Color themeColor() const; 832 833 // Returns the HTMLLinkElement currently in use for the Web Manifest. 834 // Returns null if there is no such element. 835 HTMLLinkElement* linkManifest() const; 836 837 void setUseSecureKeyboardEntryWhenActive(bool); 838 bool useSecureKeyboardEntryWhenActive() const; 839 840 void updateFocusAppearanceSoon(bool restorePreviousSelection); 841 void cancelFocusAppearanceUpdate(); 842 843 // Extension for manipulating canvas drawing contexts for use in CSS 844 void getCSSCanvasContext(const String& type, const String& name, int width, int height, RefPtrWillBeRawPtr<CanvasRenderingContext2D>&, RefPtrWillBeRawPtr<WebGLRenderingContext>&); 845 HTMLCanvasElement& getCSSCanvasElement(const String& name); 846 847 bool isDNSPrefetchEnabled() const { return m_isDNSPrefetchEnabled; } 848 void parseDNSPrefetchControlHeader(const String&); 849 850 // FIXME(crbug.com/305497): This should be removed once LocalDOMWindow is an ExecutionContext. 851 virtual void postTask(PassOwnPtr<ExecutionContextTask>) OVERRIDE; // Executes the task on context's thread asynchronously. 852 void postInspectorTask(PassOwnPtr<ExecutionContextTask>); 853 854 virtual void tasksWereSuspended() OVERRIDE FINAL; 855 virtual void tasksWereResumed() OVERRIDE FINAL; 856 virtual void suspendScheduledTasks() OVERRIDE FINAL; 857 virtual void resumeScheduledTasks() OVERRIDE FINAL; 858 virtual bool tasksNeedSuspension() OVERRIDE FINAL; 859 860 void finishedParsing(); 861 862 void setEncodingData(const DocumentEncodingData& newData); 863 const WTF::TextEncoding& encoding() const { return m_encodingData.encoding(); } 864 865 bool encodingWasDetectedHeuristically() const { return m_encodingData.wasDetectedHeuristically(); } 866 bool sawDecodingError() const { return m_encodingData.sawDecodingError(); } 867 868 void setAnnotatedRegionsDirty(bool f) { m_annotatedRegionsDirty = f; } 869 bool annotatedRegionsDirty() const { return m_annotatedRegionsDirty; } 870 bool hasAnnotatedRegions () const { return m_hasAnnotatedRegions; } 871 void setHasAnnotatedRegions(bool f) { m_hasAnnotatedRegions = f; } 872 const Vector<AnnotatedRegionValue>& annotatedRegions() const; 873 void setAnnotatedRegions(const Vector<AnnotatedRegionValue>&); 874 875 virtual void removeAllEventListeners() OVERRIDE FINAL; 876 877 const SVGDocumentExtensions* svgExtensions(); 878 SVGDocumentExtensions& accessSVGExtensions(); 879 880 void initSecurityContext(); 881 void initSecurityContext(const DocumentInit&); 882 void initContentSecurityPolicy(PassRefPtr<ContentSecurityPolicy> = nullptr); 883 884 bool allowInlineEventHandlers(Node*, EventListener*, const String& contextURL, const WTF::OrdinalNumber& contextLine); 885 bool allowExecutingScripts(Node*); 886 887 void statePopped(PassRefPtr<SerializedScriptValue>); 888 889 enum LoadEventProgress { 890 LoadEventNotRun, 891 LoadEventInProgress, 892 LoadEventCompleted, 893 BeforeUnloadEventInProgress, 894 BeforeUnloadEventCompleted, 895 PageHideInProgress, 896 UnloadEventInProgress, 897 UnloadEventHandled 898 }; 899 bool loadEventStillNeeded() const { return m_loadEventProgress == LoadEventNotRun; } 900 bool processingLoadEvent() const { return m_loadEventProgress == LoadEventInProgress; } 901 bool loadEventFinished() const { return m_loadEventProgress >= LoadEventCompleted; } 902 bool unloadStarted() const { return m_loadEventProgress >= PageHideInProgress; } 903 904 void setContainsPlugins() { m_containsPlugins = true; } 905 bool containsPlugins() const { return m_containsPlugins; } 906 907 virtual bool isContextThread() const OVERRIDE FINAL; 908 virtual bool isJSExecutionForbidden() const OVERRIDE FINAL { return false; } 909 910 bool containsValidityStyleRules() const { return m_containsValidityStyleRules; } 911 void setContainsValidityStyleRules() { m_containsValidityStyleRules = true; } 912 913 void enqueueResizeEvent(); 914 void enqueueScrollEventForNode(Node*); 915 void enqueueAnimationFrameEvent(PassRefPtrWillBeRawPtr<Event>); 916 // Only one event for a target/event type combination will be dispatched per frame. 917 void enqueueUniqueAnimationFrameEvent(PassRefPtrWillBeRawPtr<Event>); 918 void enqueueMediaQueryChangeListeners(WillBeHeapVector<RefPtrWillBeMember<MediaQueryListListener> >&); 919 920 bool hasFullscreenSupplement() const { return m_hasFullscreenSupplement; } 921 void setHasFullscreenSupplement() { m_hasFullscreenSupplement = true; } 922 923 void exitPointerLock(); 924 Element* pointerLockElement() const; 925 926 // Used to allow element that loads data without going through a FrameLoader to delay the 'load' event. 927 void incrementLoadEventDelayCount() { ++m_loadEventDelayCount; } 928 void decrementLoadEventDelayCount(); 929 void checkLoadEventSoon(); 930 bool isDelayingLoadEvent(); 931 void loadPluginsSoon(); 932 933 PassRefPtrWillBeRawPtr<Touch> createTouch(LocalDOMWindow*, EventTarget*, int identifier, double pageX, double pageY, double screenX, double screenY, double radiusX, double radiusY, float rotationAngle, float force) const; 934 PassRefPtrWillBeRawPtr<TouchList> createTouchList(WillBeHeapVector<RefPtrWillBeMember<Touch> >&) const; 935 936 const DocumentTiming& timing() const { return m_documentTiming; } 937 938 int requestAnimationFrame(RequestAnimationFrameCallback*); 939 void cancelAnimationFrame(int id); 940 void serviceScriptedAnimations(double monotonicAnimationStartTime); 941 942 virtual EventTarget* errorEventTarget() OVERRIDE FINAL; 943 virtual void logExceptionToConsole(const String& errorMessage, int scriptId, const String& sourceURL, int lineNumber, int columnNumber, PassRefPtrWillBeRawPtr<ScriptCallStack>) OVERRIDE FINAL; 944 945 void initDNSPrefetch(); 946 947 bool isInDocumentWrite() { return m_writeRecursionDepth > 0; } 948 949 IntSize initialViewportSize() const; 950 951 TextAutosizer* textAutosizer(); 952 953 PassRefPtrWillBeRawPtr<Element> createElement(const AtomicString& localName, const AtomicString& typeExtension, ExceptionState&); 954 PassRefPtrWillBeRawPtr<Element> createElementNS(const AtomicString& namespaceURI, const AtomicString& qualifiedName, const AtomicString& typeExtension, ExceptionState&); 955 ScriptValue registerElement(ScriptState*, const AtomicString& name, ExceptionState&); 956 ScriptValue registerElement(ScriptState*, const AtomicString& name, const Dictionary& options, ExceptionState&, CustomElement::NameSet validNames = CustomElement::StandardNames); 957 CustomElementRegistrationContext* registrationContext() { return m_registrationContext.get(); } 958 CustomElementMicrotaskRunQueue* customElementMicrotaskRunQueue(); 959 960 void setImportsController(HTMLImportsController*); 961 HTMLImportsController* importsController() const { return m_importsController; } 962 HTMLImportLoader* importLoader() const; 963 964 bool haveImportsLoaded() const; 965 void didLoadAllImports(); 966 967 void adjustFloatQuadsForScrollAndAbsoluteZoom(Vector<FloatQuad>&, RenderObject&); 968 void adjustFloatRectForScrollAndAbsoluteZoom(FloatRect&, RenderObject&); 969 970 bool hasActiveParser(); 971 unsigned activeParserCount() { return m_activeParserCount; } 972 void incrementActiveParserCount() { ++m_activeParserCount; } 973 void decrementActiveParserCount(); 974 975 void setContextFeatures(ContextFeatures&); 976 ContextFeatures& contextFeatures() const { return *m_contextFeatures; } 977 978 ElementDataCache* elementDataCache() { return m_elementDataCache.get(); } 979 980 void didLoadAllScriptBlockingResources(); 981 void didRemoveAllPendingStylesheet(); 982 void clearStyleResolver(); 983 984 bool inStyleRecalc() const { return m_lifecycle.state() == DocumentLifecycle::InStyleRecalc; } 985 986 // Return a Locale for the default locale if the argument is null or empty. 987 Locale& getCachedLocale(const AtomicString& locale = nullAtom); 988 989 AnimationClock& animationClock() { return m_animationClock; } 990 AnimationTimeline& timeline() const { return *m_timeline; } 991 CompositorPendingAnimations& compositorPendingAnimations() { return m_compositorPendingAnimations; } 992 993 void addToTopLayer(Element*, const Element* before = 0); 994 void removeFromTopLayer(Element*); 995 const WillBeHeapVector<RefPtrWillBeMember<Element> >& topLayerElements() const { return m_topLayerElements; } 996 HTMLDialogElement* activeModalDialog() const; 997 998 // A non-null m_templateDocumentHost implies that |this| was created by ensureTemplateDocument(). 999 bool isTemplateDocument() const { return !!m_templateDocumentHost; } 1000 Document& ensureTemplateDocument(); 1001 Document* templateDocumentHost() { return m_templateDocumentHost; } 1002 1003 void didAssociateFormControl(Element*); 1004 1005 virtual void addConsoleMessage(PassRefPtrWillBeRawPtr<ConsoleMessage>) OVERRIDE FINAL; 1006 1007 virtual LocalDOMWindow* executingWindow() OVERRIDE FINAL; 1008 LocalFrame* executingFrame(); 1009 1010 DocumentLifecycleNotifier& lifecycleNotifier(); 1011 DocumentLifecycle& lifecycle() { return m_lifecycle; } 1012 bool isActive() const { return m_lifecycle.isActive(); } 1013 bool isStopped() const { return m_lifecycle.state() == DocumentLifecycle::Stopped; } 1014 bool isDisposed() const { return m_lifecycle.state() == DocumentLifecycle::Disposed; } 1015 1016 enum HttpRefreshType { 1017 HttpRefreshFromHeader, 1018 HttpRefreshFromMetaTag 1019 }; 1020 void maybeHandleHttpRefresh(const String&, HttpRefreshType); 1021 1022 void updateSecurityOrigin(PassRefPtr<SecurityOrigin>); 1023 PassOwnPtr<LifecycleNotifier<Document> > createLifecycleNotifier(); 1024 1025 void setHasViewportUnits() { m_hasViewportUnits = true; } 1026 bool hasViewportUnits() const { return m_hasViewportUnits; } 1027 void notifyResizeForViewportUnits(); 1028 1029 void registerVisibilityObserver(DocumentVisibilityObserver*); 1030 void unregisterVisibilityObserver(DocumentVisibilityObserver*); 1031 1032 void updateStyleInvalidationIfNeeded(); 1033 1034 virtual void trace(Visitor*) OVERRIDE; 1035 1036 bool hasSVGFilterElementsRequiringLayerUpdate() const { return m_layerUpdateSVGFilterElements.size(); } 1037 void didRecalculateStyleForElement() { ++m_styleRecalcElementCounter; } 1038 1039 AtomicString convertLocalName(const AtomicString&); 1040 1041 virtual v8::Handle<v8::Object> wrap(v8::Handle<v8::Object> creationContext, v8::Isolate*) OVERRIDE; 1042 virtual v8::Handle<v8::Object> associateWithWrapper(const WrapperTypeInfo*, v8::Handle<v8::Object> wrapper, v8::Isolate*) OVERRIDE; 1043 1044 protected: 1045 Document(const DocumentInit&, DocumentClassFlags = DefaultDocumentClass); 1046 1047 virtual void didUpdateSecurityOrigin() OVERRIDE FINAL; 1048 1049 void clearXMLVersion() { m_xmlVersion = String(); } 1050 1051 #if !ENABLE(OILPAN) 1052 virtual void dispose() OVERRIDE; 1053 #endif 1054 1055 virtual PassRefPtrWillBeRawPtr<Document> cloneDocumentWithoutChildren(); 1056 1057 bool importContainerNodeChildren(ContainerNode* oldContainerNode, PassRefPtrWillBeRawPtr<ContainerNode> newContainerNode, ExceptionState&); 1058 void lockCompatibilityMode() { m_compatibilityModeLocked = true; } 1059 1060 private: 1061 friend class Node; 1062 friend class IgnoreDestructiveWriteCountIncrementer; 1063 1064 bool isDocumentFragment() const WTF_DELETED_FUNCTION; // This will catch anyone doing an unnecessary check. 1065 bool isDocumentNode() const WTF_DELETED_FUNCTION; // This will catch anyone doing an unnecessary check. 1066 bool isElementNode() const WTF_DELETED_FUNCTION; // This will catch anyone doing an unnecessary check. 1067 1068 ScriptedAnimationController& ensureScriptedAnimationController(); 1069 virtual SecurityContext& securityContext() OVERRIDE FINAL { return *this; } 1070 virtual EventQueue* eventQueue() const OVERRIDE FINAL; 1071 1072 // FIXME: Rename the StyleRecalc state to RenderTreeUpdate. 1073 bool hasPendingStyleRecalc() const { return m_lifecycle.state() == DocumentLifecycle::VisualUpdatePending; } 1074 1075 bool shouldScheduleRenderTreeUpdate() const; 1076 void scheduleRenderTreeUpdate(); 1077 1078 bool needsFullRenderTreeUpdate() const; 1079 1080 void inheritHtmlAndBodyElementStyles(StyleRecalcChange); 1081 1082 bool dirtyElementsForLayerUpdate(); 1083 void updateDistributionIfNeeded(); 1084 void updateUseShadowTreesIfNeeded(); 1085 void evaluateMediaQueryListIfNeeded(); 1086 1087 void updateRenderTree(StyleRecalcChange); 1088 void updateStyle(StyleRecalcChange); 1089 1090 void detachParser(); 1091 1092 void clearWeakMembers(Visitor*); 1093 1094 virtual bool isDocument() const OVERRIDE FINAL { return true; } 1095 1096 virtual void childrenChanged(const ChildrenChange&) OVERRIDE; 1097 1098 virtual String nodeName() const OVERRIDE FINAL; 1099 virtual NodeType nodeType() const OVERRIDE FINAL; 1100 virtual bool childTypeAllowed(NodeType) const OVERRIDE FINAL; 1101 virtual PassRefPtrWillBeRawPtr<Node> cloneNode(bool deep = true) OVERRIDE FINAL; 1102 void cloneDataFromDocument(const Document&); 1103 1104 #if !ENABLE(OILPAN) 1105 virtual void refExecutionContext() OVERRIDE FINAL { ref(); } 1106 virtual void derefExecutionContext() OVERRIDE FINAL { deref(); } 1107 #endif 1108 1109 virtual const KURL& virtualURL() const OVERRIDE FINAL; // Same as url(), but needed for ExecutionContext to implement it without a performance loss for direct calls. 1110 virtual KURL virtualCompleteURL(const String&) const OVERRIDE FINAL; // Same as completeURL() for the same reason as above. 1111 1112 virtual void reportBlockedScriptExecutionToInspector(const String& directiveText) OVERRIDE FINAL; 1113 1114 virtual double timerAlignmentInterval() const OVERRIDE FINAL; 1115 1116 void updateTitle(const String&); 1117 void updateFocusAppearanceTimerFired(Timer<Document>*); 1118 void updateBaseURL(); 1119 1120 void executeScriptsWaitingForResourcesTimerFired(Timer<Document>*); 1121 1122 void loadEventDelayTimerFired(Timer<Document>*); 1123 void pluginLoadingTimerFired(Timer<Document>*); 1124 1125 PageVisibilityState pageVisibilityState() const; 1126 1127 // Note that dispatching a window load event may cause the LocalDOMWindow to be detached from 1128 // the LocalFrame, so callers should take a reference to the LocalDOMWindow (which owns us) to 1129 // prevent the Document from getting blown away from underneath them. 1130 void dispatchWindowLoadEvent(); 1131 1132 void addListenerType(ListenerType listenerType) { m_listenerTypes |= listenerType; } 1133 void addMutationEventListenerTypeIfEnabled(ListenerType); 1134 1135 void didAssociateFormControlsTimerFired(Timer<Document>*); 1136 1137 void clearFocusedElementSoon(); 1138 void clearFocusedElementTimerFired(Timer<Document>*); 1139 1140 void processHttpEquivDefaultStyle(const AtomicString& content); 1141 void processHttpEquivRefresh(const AtomicString& content); 1142 void processHttpEquivSetCookie(const AtomicString& content); 1143 void processHttpEquivXFrameOptions(const AtomicString& content); 1144 void processHttpEquivContentSecurityPolicy(const AtomicString& equiv, const AtomicString& content); 1145 1146 bool haveStylesheetsLoaded() const; 1147 1148 void setHoverNode(PassRefPtrWillBeRawPtr<Node>); 1149 Node* hoverNode() const { return m_hoverNode.get(); } 1150 1151 typedef HashSet<OwnPtr<EventFactoryBase> > EventFactorySet; 1152 static EventFactorySet& eventFactories(); 1153 1154 DocumentLifecycle m_lifecycle; 1155 1156 bool m_hasNodesWithPlaceholderStyle; 1157 bool m_evaluateMediaQueriesOnStyleRecalc; 1158 1159 // If we do ignore the pending stylesheet count, then we need to add a boolean 1160 // to track that this happened so that we can do a full repaint when the stylesheets 1161 // do eventually load. 1162 PendingSheetLayout m_pendingSheetLayout; 1163 1164 RawPtrWillBeMember<LocalFrame> m_frame; 1165 RawPtrWillBeMember<LocalDOMWindow> m_domWindow; 1166 // FIXME: oilpan: when we get rid of the transition types change the 1167 // HTMLImportsController to not be a DocumentSupplement since it is 1168 // redundant with oilpan. 1169 RawPtrWillBeMember<HTMLImportsController> m_importsController; 1170 1171 RefPtrWillBeMember<ResourceFetcher> m_fetcher; 1172 RefPtrWillBeMember<DocumentParser> m_parser; 1173 unsigned m_activeParserCount; 1174 RefPtrWillBeMember<ContextFeatures> m_contextFeatures; 1175 1176 bool m_wellFormed; 1177 1178 // Document URLs. 1179 KURL m_url; // Document.URL: The URL from which this document was retrieved. 1180 KURL m_baseURL; // Node.baseURI: The URL to use when resolving relative URLs. 1181 KURL m_baseURLOverride; // An alternative base URL that takes precedence over m_baseURL (but not m_baseElementURL). 1182 KURL m_baseElementURL; // The URL set by the <base> element. 1183 KURL m_cookieURL; // The URL to use for cookie access. 1184 1185 AtomicString m_baseTarget; 1186 1187 // Mime-type of the document in case it was cloned or created by XHR. 1188 AtomicString m_mimeType; 1189 1190 RefPtrWillBeMember<DocumentType> m_docType; 1191 OwnPtrWillBeMember<DOMImplementation> m_implementation; 1192 1193 RefPtrWillBeMember<CSSStyleSheet> m_elemSheet; 1194 1195 bool m_printing; 1196 bool m_paginatedForScreen; 1197 1198 CompatibilityMode m_compatibilityMode; 1199 bool m_compatibilityModeLocked; // This is cheaper than making setCompatibilityMode virtual. 1200 1201 Timer<Document> m_executeScriptsWaitingForResourcesTimer; 1202 1203 bool m_hasAutofocused; 1204 Timer<Document> m_clearFocusedElementTimer; 1205 RefPtrWillBeMember<Element> m_autofocusElement; 1206 RefPtrWillBeMember<Element> m_focusedElement; 1207 RefPtrWillBeMember<Node> m_hoverNode; 1208 RefPtrWillBeMember<Element> m_activeHoverElement; 1209 RefPtrWillBeMember<Element> m_documentElement; 1210 UserActionElementSet m_userActionElements; 1211 1212 uint64_t m_domTreeVersion; 1213 static uint64_t s_globalTreeVersion; 1214 1215 WillBeHeapHashSet<RawPtrWillBeWeakMember<NodeIterator> > m_nodeIterators; 1216 typedef WillBeHeapHashSet<RawPtrWillBeWeakMember<Range> > AttachedRangeSet; 1217 AttachedRangeSet m_ranges; 1218 1219 unsigned short m_listenerTypes; 1220 1221 MutationObserverOptions m_mutationObserverTypes; 1222 1223 OwnPtrWillBeMember<StyleEngine> m_styleEngine; 1224 RefPtrWillBeMember<StyleSheetList> m_styleSheetList; 1225 1226 OwnPtrWillBeMember<FormController> m_formController; 1227 1228 TextLinkColors m_textLinkColors; 1229 const OwnPtrWillBeMember<VisitedLinkState> m_visitedLinkState; 1230 1231 bool m_visuallyOrdered; 1232 ReadyState m_readyState; 1233 bool m_isParsing; 1234 1235 bool m_gotoAnchorNeededAfterStylesheetsLoad; 1236 bool m_isDNSPrefetchEnabled; 1237 bool m_haveExplicitlyDisabledDNSPrefetch; 1238 bool m_containsValidityStyleRules; 1239 bool m_updateFocusAppearanceRestoresSelection; 1240 bool m_containsPlugins; 1241 1242 // http://www.whatwg.org/specs/web-apps/current-work/#ignore-destructive-writes-counter 1243 unsigned m_ignoreDestructiveWriteCount; 1244 1245 String m_title; 1246 String m_rawTitle; 1247 RefPtrWillBeMember<Element> m_titleElement; 1248 1249 OwnPtr<AXObjectCache> m_axObjectCache; 1250 OwnPtrWillBeMember<DocumentMarkerController> m_markers; 1251 1252 Timer<Document> m_updateFocusAppearanceTimer; 1253 1254 RawPtrWillBeMember<Element> m_cssTarget; 1255 1256 LoadEventProgress m_loadEventProgress; 1257 1258 double m_startTime; 1259 1260 OwnPtrWillBeMember<ScriptRunner> m_scriptRunner; 1261 1262 WillBeHeapVector<RefPtrWillBeMember<HTMLScriptElement> > m_currentScriptStack; 1263 1264 OwnPtr<TransformSource> m_transformSource; 1265 RefPtrWillBeMember<Document> m_transformSourceDocument; 1266 1267 String m_xmlEncoding; 1268 String m_xmlVersion; 1269 unsigned m_xmlStandalone : 2; 1270 unsigned m_hasXMLDeclaration : 1; 1271 1272 AtomicString m_contentLanguage; 1273 1274 DocumentEncodingData m_encodingData; 1275 1276 InheritedBool m_designMode; 1277 1278 WillBeHeapHashSet<RawPtrWillBeWeakMember<const LiveNodeListBase> > m_listsInvalidatedAtDocument; 1279 #if ENABLE(OILPAN) 1280 // Oilpan keeps track of all registered NodeLists. 1281 // 1282 // FIXME: Oilpan: improve - only need to know if a NodeList 1283 // is currently alive or not for the different types. 1284 HeapHashSet<WeakMember<const LiveNodeListBase> > m_nodeLists[numNodeListInvalidationTypes]; 1285 #else 1286 unsigned m_nodeListCounts[numNodeListInvalidationTypes]; 1287 #endif 1288 1289 OwnPtrWillBeMember<SVGDocumentExtensions> m_svgExtensions; 1290 1291 Vector<AnnotatedRegionValue> m_annotatedRegions; 1292 bool m_hasAnnotatedRegions; 1293 bool m_annotatedRegionsDirty; 1294 1295 WillBeHeapHashMap<String, RefPtrWillBeMember<HTMLCanvasElement> > m_cssCanvasElements; 1296 1297 OwnPtr<SelectorQueryCache> m_selectorQueryCache; 1298 1299 bool m_useSecureKeyboardEntryWhenActive; 1300 1301 DocumentClassFlags m_documentClasses; 1302 1303 bool m_isViewSource; 1304 bool m_sawElementsInKnownNamespaces; 1305 bool m_isSrcdocDocument; 1306 bool m_isMobileDocument; 1307 bool m_isTransitionDocument; 1308 1309 RenderView* m_renderView; 1310 1311 #if !ENABLE(OILPAN) 1312 WeakPtrFactory<Document> m_weakFactory; 1313 #endif 1314 WeakPtrWillBeWeakMember<Document> m_contextDocument; 1315 1316 bool m_hasFullscreenSupplement; // For early return in Fullscreen::fromIfExists() 1317 1318 WillBeHeapVector<RefPtrWillBeMember<Element> > m_topLayerElements; 1319 1320 int m_loadEventDelayCount; 1321 Timer<Document> m_loadEventDelayTimer; 1322 Timer<Document> m_pluginLoadingTimer; 1323 1324 ViewportDescription m_viewportDescription; 1325 ViewportDescription m_legacyViewportDescription; 1326 Length m_viewportDefaultMinWidth; 1327 1328 bool m_didSetReferrerPolicy; 1329 ReferrerPolicy m_referrerPolicy; 1330 1331 bool m_directionSetOnDocumentElement; 1332 bool m_writingModeSetOnDocumentElement; 1333 DocumentTiming m_documentTiming; 1334 RefPtrWillBeMember<MediaQueryMatcher> m_mediaQueryMatcher; 1335 bool m_writeRecursionIsTooDeep; 1336 unsigned m_writeRecursionDepth; 1337 1338 RefPtrWillBeMember<ScriptedAnimationController> m_scriptedAnimationController; 1339 OwnPtr<MainThreadTaskRunner> m_taskRunner; 1340 OwnPtrWillBeMember<TextAutosizer> m_textAutosizer; 1341 1342 RefPtrWillBeMember<CustomElementRegistrationContext> m_registrationContext; 1343 RefPtrWillBeMember<CustomElementMicrotaskRunQueue> m_customElementMicrotaskRunQueue; 1344 1345 void elementDataCacheClearTimerFired(Timer<Document>*); 1346 Timer<Document> m_elementDataCacheClearTimer; 1347 1348 OwnPtrWillBeMember<ElementDataCache> m_elementDataCache; 1349 1350 typedef HashMap<AtomicString, OwnPtr<Locale> > LocaleIdentifierToLocaleMap; 1351 LocaleIdentifierToLocaleMap m_localeCache; 1352 1353 AnimationClock m_animationClock; 1354 RefPtrWillBeMember<AnimationTimeline> m_timeline; 1355 CompositorPendingAnimations m_compositorPendingAnimations; 1356 1357 RefPtrWillBeMember<Document> m_templateDocument; 1358 // With Oilpan the templateDocument and the templateDocumentHost 1359 // live and die together. Without Oilpan, the templateDocumentHost 1360 // is a manually managed backpointer from m_templateDocument. 1361 RawPtrWillBeMember<Document> m_templateDocumentHost; 1362 1363 Timer<Document> m_didAssociateFormControlsTimer; 1364 WillBeHeapHashSet<RefPtrWillBeMember<Element> > m_associatedFormControls; 1365 1366 WillBeHeapHashSet<RawPtrWillBeMember<SVGUseElement> > m_useElementsNeedingUpdate; 1367 WillBeHeapHashSet<RawPtrWillBeMember<Element> > m_layerUpdateSVGFilterElements; 1368 1369 bool m_hasViewportUnits; 1370 1371 typedef WillBeHeapHashSet<RawPtrWillBeWeakMember<DocumentVisibilityObserver> > DocumentVisibilityObserverSet; 1372 DocumentVisibilityObserverSet m_visibilityObservers; 1373 1374 int m_styleRecalcElementCounter; 1375 }; 1376 1377 inline bool Document::shouldOverrideLegacyDescription(ViewportDescription::Type origin) 1378 { 1379 // The different (legacy) meta tags have different priorities based on the type 1380 // regardless of which order they appear in the DOM. The priority is given by the 1381 // ViewportDescription::Type enum. 1382 return origin >= m_legacyViewportDescription.type; 1383 } 1384 1385 inline void Document::scheduleRenderTreeUpdateIfNeeded() 1386 { 1387 // Inline early out to avoid the function calls below. 1388 if (hasPendingStyleRecalc()) 1389 return; 1390 if (shouldScheduleRenderTreeUpdate() && needsRenderTreeUpdate()) 1391 scheduleRenderTreeUpdate(); 1392 } 1393 1394 DEFINE_TYPE_CASTS(Document, ExecutionContext, context, context->isDocument(), context.isDocument()); 1395 DEFINE_NODE_TYPE_CASTS(Document, isDocumentNode()); 1396 1397 #define DEFINE_DOCUMENT_TYPE_CASTS(thisType) \ 1398 DEFINE_TYPE_CASTS(thisType, Document, document, document->is##thisType(), document.is##thisType()) 1399 1400 // This is needed to avoid ambiguous overloads with the Node and TreeScope versions. 1401 DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES(Document) 1402 1403 // Put these methods here, because they require the Document definition, but we really want to inline them. 1404 1405 inline bool Node::isDocumentNode() const 1406 { 1407 return this == document(); 1408 } 1409 1410 Node* eventTargetNodeForDocument(Document*); 1411 1412 } // namespace blink 1413 1414 #ifndef NDEBUG 1415 // Outside the WebCore namespace for ease of invocation from gdb. 1416 void showLiveDocumentInstances(); 1417 #endif 1418 1419 #endif // Document_h 1420
