--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/Document.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,5110 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * (C) 2001 Dirk Mueller (mueller@kde.org)
+ * (C) 2006 Alexey Proskuryakov (ap@webkit.org)
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "Document.h"
+
+#include "AXObjectCache.h"
+#include "AnimationController.h"
+#include "Attr.h"
+#include "Attribute.h"
+#include "CDATASection.h"
+#include "CSSHelper.h"
+#include "CSSStyleSelector.h"
+#include "CSSStyleSheet.h"
+#include "CSSValueKeywords.h"
+#include "CachedCSSStyleSheet.h"
+#include "Chrome.h"
+#include "ChromeClient.h"
+#include "Comment.h"
+#include "Console.h"
+#include "CookieJar.h"
+#include "CustomEvent.h"
+#include "DOMImplementation.h"
+#include "DOMWindow.h"
+#include "DeviceOrientationEvent.h"
+#include "DocLoader.h"
+#include "DocumentFragment.h"
+#include "DocumentLoader.h"
+#include "DocumentType.h"
+#include "EditingText.h"
+#include "Editor.h"
+#include "EntityReference.h"
+#include "Event.h"
+#include "EventHandler.h"
+#include "EventListener.h"
+#include "EventNames.h"
+#include "ExceptionCode.h"
+#include "FocusController.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "HTMLAllCollection.h"
+#include "HTMLAnchorElement.h"
+#include "HTMLBodyElement.h"
+#include "HTMLCanvasElement.h"
+#include "HTMLCollection.h"
+#include "HTMLDocument.h"
+#include "HTMLElementFactory.h"
+#include "HTMLFrameOwnerElement.h"
+#include "HTMLHeadElement.h"
+#include "HTMLIFrameElement.h"
+#include "HTMLInputElement.h"
+#include "HTMLLinkElement.h"
+#include "HTMLMapElement.h"
+#include "HTMLNameCollection.h"
+#include "HTMLNames.h"
+#include "LegacyHTMLTreeBuilder.h"
+#include "HTMLStyleElement.h"
+#include "HTMLTitleElement.h"
+#include "LegacyHTMLDocumentParser.h"
+#include "HTTPParsers.h"
+#include "HistoryItem.h"
+#include "HitTestRequest.h"
+#include "HitTestResult.h"
+#include "ImageLoader.h"
+#include "InspectorController.h"
+#include "InspectorTimelineAgent.h"
+#include "KeyboardEvent.h"
+#include "Logging.h"
+#include "MessageEvent.h"
+#include "MouseEvent.h"
+#include "MouseEventWithHitTestResults.h"
+#include "MutationEvent.h"
+#include "NameNodeList.h"
+#include "NodeFilter.h"
+#include "NodeIterator.h"
+#include "NodeWithIndex.h"
+#include "OverflowEvent.h"
+#include "Page.h"
+#include "PageGroup.h"
+#include "PageTransitionEvent.h"
+#include "PlatformKeyboardEvent.h"
+#include "PopStateEvent.h"
+#include "ProcessingInstruction.h"
+#include "ProgressEvent.h"
+#include "RegisteredEventListener.h"
+#include "RenderArena.h"
+#include "RenderLayer.h"
+#include "RenderTextControl.h"
+#include "RenderView.h"
+#include "RenderWidget.h"
+#include "ScriptController.h"
+#include "ScriptElement.h"
+#include "ScriptEventListener.h"
+#include "SecurityOrigin.h"
+#include "SegmentedString.h"
+#include "SelectionController.h"
+#include "Settings.h"
+#include "StaticHashSetNodeList.h"
+#include "StringBuffer.h"
+#include "StyleSheetList.h"
+#include "TextEvent.h"
+#include "TextIterator.h"
+#include "TextResourceDecoder.h"
+#include "Timer.h"
+#include "TransformSource.h"
+#include "TreeWalker.h"
+#include "UIEvent.h"
+#include "UserContentURLPattern.h"
+#include "ViewportArguments.h"
+#include "WebKitAnimationEvent.h"
+#include "WebKitTransitionEvent.h"
+#include "WheelEvent.h"
+#include "XMLHttpRequest.h"
+#include "XMLNSNames.h"
+#include "XMLNames.h"
+#include "XMLDocumentParser.h"
+#include "htmlediting.h"
+#include <wtf/CurrentTime.h>
+#include <wtf/HashFunctions.h>
+#include <wtf/MainThread.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/StdLibExtras.h>
+
+#if ENABLE(SHARED_WORKERS)
+#include "SharedWorkerRepository.h"
+#endif
+
+#if ENABLE(DOM_STORAGE)
+#include "StorageEvent.h"
+#endif
+
+#if ENABLE(XPATH)
+#include "XPathEvaluator.h"
+#include "XPathExpression.h"
+#include "XPathNSResolver.h"
+#include "XPathResult.h"
+#endif
+
+#if ENABLE(XSLT)
+#include "XSLTProcessor.h"
+#endif
+
+#if ENABLE(XBL)
+#include "XBLBindingManager.h"
+#endif
+
+#if ENABLE(SVG)
+#include "SVGDocumentExtensions.h"
+#include "SVGElementFactory.h"
+#include "SVGNames.h"
+#include "SVGZoomEvent.h"
+#include "SVGStyleElement.h"
+#endif
+
+#if ENABLE(TOUCH_EVENTS)
+#if USE(V8)
+#include "RuntimeEnabledFeatures.h"
+#endif
+#include "TouchEvent.h"
+#endif
+
+#if ENABLE(TRANSFORMACTION_EVENTS)
+#include "TransformActionEvent.h"
+#endif
+
+#if ENABLE(WML)
+#include "WMLDocument.h"
+#include "WMLElement.h"
+#include "WMLElementFactory.h"
+#include "WMLNames.h"
+#endif
+
+#if ENABLE(MATHML)
+#include "MathMLElement.h"
+#include "MathMLElementFactory.h"
+#include "MathMLNames.h"
+#endif
+
+#if ENABLE(XHTMLMP)
+#include "HTMLNoScriptElement.h"
+#endif
+
+using namespace std;
+using namespace WTF;
+using namespace Unicode;
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+// #define INSTRUMENT_LAYOUT_SCHEDULING 1
+
+// This amount of time must have elapsed before we will even consider scheduling a layout without a delay.
+// FIXME: For faster machines this value can really be lowered to 200. 250 is adequate, but a little high
+// for dual G5s. :)
+static const int cLayoutScheduleThreshold = 250;
+
+// Use 1 to represent the document's default form.
+static HTMLFormElement* const defaultForm = reinterpret_cast<HTMLFormElement*>(1);
+
+// DOM Level 2 says (letters added):
+//
+// a) Name start characters must have one of the categories Ll, Lu, Lo, Lt, Nl.
+// b) Name characters other than Name-start characters must have one of the categories Mc, Me, Mn, Lm, or Nd.
+// c) Characters in the compatibility area (i.e. with character code greater than #xF900 and less than #xFFFE) are not allowed in XML names.
+// 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.
+// 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.
+// f) Characters #x20DD-#x20E0 are excluded (in accordance with Unicode, section 5.14).
+// g) Character #x00B7 is classified as an extender, because the property list so identifies it.
+// h) Character #x0387 is added as a name character, because #x00B7 is its canonical equivalent.
+// i) Characters ':' and '_' are allowed as name-start characters.
+// j) Characters '-' and '.' are allowed as name characters.
+//
+// It also contains complete tables. If we decide it's better, we could include those instead of the following code.
+
+static inline bool isValidNameStart(UChar32 c)
+{
+ // rule (e) above
+ if ((c >= 0x02BB && c <= 0x02C1) || c == 0x559 || c == 0x6E5 || c == 0x6E6)
+ return true;
+
+ // rule (i) above
+ if (c == ':' || c == '_')
+ return true;
+
+ // rules (a) and (f) above
+ const uint32_t nameStartMask = Letter_Lowercase | Letter_Uppercase | Letter_Other | Letter_Titlecase | Number_Letter;
+ if (!(Unicode::category(c) & nameStartMask))
+ return false;
+
+ // rule (c) above
+ if (c >= 0xF900 && c < 0xFFFE)
+ return false;
+
+ // rule (d) above
+ DecompositionType decompType = decompositionType(c);
+ if (decompType == DecompositionFont || decompType == DecompositionCompat)
+ return false;
+
+ return true;
+}
+
+static inline bool isValidNamePart(UChar32 c)
+{
+ // rules (a), (e), and (i) above
+ if (isValidNameStart(c))
+ return true;
+
+ // rules (g) and (h) above
+ if (c == 0x00B7 || c == 0x0387)
+ return true;
+
+ // rule (j) above
+ if (c == '-' || c == '.')
+ return true;
+
+ // rules (b) and (f) above
+ const uint32_t otherNamePartMask = Mark_NonSpacing | Mark_Enclosing | Mark_SpacingCombining | Letter_Modifier | Number_DecimalDigit;
+ if (!(Unicode::category(c) & otherNamePartMask))
+ return false;
+
+ // rule (c) above
+ if (c >= 0xF900 && c < 0xFFFE)
+ return false;
+
+ // rule (d) above
+ DecompositionType decompType = decompositionType(c);
+ if (decompType == DecompositionFont || decompType == DecompositionCompat)
+ return false;
+
+ return true;
+}
+
+static Widget* widgetForNode(Node* focusedNode)
+{
+ if (!focusedNode)
+ return 0;
+ RenderObject* renderer = focusedNode->renderer();
+ if (!renderer || !renderer->isWidget())
+ return 0;
+ return toRenderWidget(renderer)->widget();
+}
+
+static bool acceptsEditingFocus(Node *node)
+{
+ ASSERT(node);
+ ASSERT(node->isContentEditable());
+
+ Node *root = node->rootEditableElement();
+ Frame* frame = node->document()->frame();
+ if (!frame || !root)
+ return false;
+
+ return frame->editor()->shouldBeginEditing(rangeOfContents(root).get());
+}
+
+static bool disableRangeMutation(Page* page)
+{
+#if PLATFORM(MAC)
+ // Disable Range mutation on document modifications in Tiger and Leopard Mail
+ // See <rdar://problem/5865171>
+ return page && (page->settings()->needsLeopardMailQuirks() || page->settings()->needsTigerMailQuirks());
+#else
+ return false;
+#endif
+}
+
+static HashSet<Document*>* documentsThatNeedStyleRecalc = 0;
+
+class DocumentWeakReference : public ThreadSafeShared<DocumentWeakReference> {
+public:
+ static PassRefPtr<DocumentWeakReference> create(Document* document)
+ {
+ return adoptRef(new DocumentWeakReference(document));
+ }
+
+ Document* document()
+ {
+ ASSERT(isMainThread());
+ return m_document;
+ }
+
+ void clear()
+ {
+ ASSERT(isMainThread());
+ m_document = 0;
+ }
+
+private:
+ DocumentWeakReference(Document* document)
+ : m_document(document)
+ {
+ ASSERT(isMainThread());
+ }
+
+ Document* m_document;
+};
+
+Document::Document(Frame* frame, const KURL& url, bool isXHTML, bool isHTML)
+ : ContainerNode(0)
+ , m_domtree_version(0)
+ , m_styleSheets(StyleSheetList::create(this))
+ , m_styleRecalcTimer(this, &Document::styleRecalcTimerFired)
+ , m_frameElementsShouldIgnoreScrolling(false)
+ , m_containsValidityStyleRules(false)
+ , m_updateFocusAppearanceRestoresSelection(false)
+ , m_title("")
+ , m_rawTitle("")
+ , m_titleSetExplicitly(false)
+ , m_updateFocusAppearanceTimer(this, &Document::updateFocusAppearanceTimerFired)
+ , m_startTime(currentTime())
+ , m_overMinimumLayoutThreshold(false)
+ , m_extraLayoutDelay(0)
+ , m_executeScriptSoonTimer(this, &Document::executeScriptSoonTimerFired)
+ , m_xmlVersion("1.0")
+ , m_xmlStandalone(false)
+#if ENABLE(XBL)
+ , m_bindingManager(new XBLBindingManager(this))
+#endif
+ , m_savedRenderer(0)
+ , m_designMode(inherit)
+ , m_selfOnlyRefCount(0)
+#if ENABLE(SVG)
+ , m_svgExtensions(0)
+#endif
+#if ENABLE(DASHBOARD_SUPPORT)
+ , m_hasDashboardRegions(false)
+ , m_dashboardRegionsDirty(false)
+#endif
+ , m_accessKeyMapValid(false)
+ , m_createRenderers(true)
+ , m_inPageCache(false)
+ , m_useSecureKeyboardEntryWhenActive(false)
+ , m_isXHTML(isXHTML)
+ , m_isHTML(isHTML)
+ , m_numNodeListCaches(0)
+#if USE(JSC)
+ , m_normalWorldWrapperCache(0)
+#endif
+ , m_usingGeolocation(false)
+ , m_pendingEventTimer(this, &Document::pendingEventTimerFired)
+#if ENABLE(WML)
+ , m_containsWMLContent(false)
+#endif
+ , m_weakReference(DocumentWeakReference::create(this))
+ , m_idAttributeName(idAttr)
+{
+ m_document = this;
+
+ m_pageGroupUserSheetCacheValid = false;
+
+ m_printing = false;
+
+ m_ignoreAutofocus = false;
+
+ m_frame = frame;
+
+ if (frame || !url.isEmpty())
+ setURL(url);
+
+ m_axObjectCache = 0;
+
+ m_docLoader = new DocLoader(this);
+
+ m_visuallyOrdered = false;
+ m_bParsing = false;
+ m_wellFormed = false;
+
+ setParseMode(Strict);
+
+ m_textColor = Color::black;
+ m_listenerTypes = 0;
+ setInDocument();
+ m_inStyleRecalc = false;
+ m_closeAfterStyleRecalc = false;
+
+ m_usesDescendantRules = false;
+ m_usesSiblingRules = false;
+ m_usesFirstLineRules = false;
+ m_usesFirstLetterRules = false;
+ m_usesBeforeAfterRules = false;
+ m_usesRemUnits = false;
+ m_usesLinkRules = false;
+
+ m_gotoAnchorNeededAfterStylesheetsLoad = false;
+
+ m_didCalculateStyleSelector = false;
+ m_pendingStylesheets = 0;
+ m_ignorePendingStylesheets = false;
+ m_hasNodesWithPlaceholderStyle = false;
+ m_pendingSheetLayout = NoLayoutWithPendingSheets;
+
+ m_cssTarget = 0;
+
+ resetLinkColor();
+ resetVisitedLinkColor();
+ resetActiveLinkColor();
+
+ m_processingLoadEvent = false;
+
+ initSecurityContext();
+ initDNSPrefetch();
+
+ static int docID = 0;
+ m_docID = docID++;
+#if ENABLE(XHTMLMP)
+ m_shouldProcessNoScriptElement = m_frame && m_frame->script()->canExecuteScripts(NotAboutToExecuteScript);
+#endif
+}
+
+void Document::removedLastRef()
+{
+ ASSERT(!m_deletionHasBegun);
+ if (m_selfOnlyRefCount) {
+ // If removing a child removes the last self-only ref, we don't
+ // want the document to be destructed until after
+ // removeAllChildren returns, so we guard ourselves with an
+ // extra self-only ref.
+ selfOnlyRef();
+
+ // We must make sure not to be retaining any of our children through
+ // these extra pointers or we will create a reference cycle.
+ m_docType = 0;
+ m_focusedNode = 0;
+ m_hoverNode = 0;
+ m_activeNode = 0;
+ m_titleElement = 0;
+ m_documentElement = 0;
+
+ // removeAllChildren() doesn't always unregister IDs, do it upfront to avoid having stale references in the map.
+ m_elementsById.clear();
+
+ removeAllChildren();
+
+ deleteAllValues(m_markers);
+ m_markers.clear();
+
+ m_parser.clear();
+
+ m_cssCanvasElements.clear();
+
+#ifndef NDEBUG
+ m_inRemovedLastRefFunction = false;
+#endif
+
+ selfOnlyDeref();
+ } else {
+#ifndef NDEBUG
+ m_deletionHasBegun = true;
+#endif
+ delete this;
+ }
+}
+
+Document::~Document()
+{
+ ASSERT(!renderer());
+ ASSERT(!m_inPageCache);
+ ASSERT(!m_savedRenderer);
+ ASSERT(m_ranges.isEmpty());
+ ASSERT(!m_styleRecalcTimer.isActive());
+
+ for (size_t i = 0; i < m_scriptsToExecuteSoon.size(); ++i)
+ m_scriptsToExecuteSoon[i].first->element()->deref(); // Balances ref() in executeScriptSoon().
+
+ removeAllEventListeners();
+
+#if USE(JSC)
+ destroyAllWrapperCaches();
+#endif
+
+ m_parser.clear();
+ m_document = 0;
+ m_docLoader.clear();
+
+ m_renderArena.clear();
+
+#if ENABLE(XBL)
+ m_bindingManager.clear();
+#endif
+
+ deleteAllValues(m_markers);
+
+ clearAXObjectCache();
+
+ m_decoder = 0;
+
+ unsigned count = sizeof(m_nameCollectionInfo) / sizeof(m_nameCollectionInfo[0]);
+ for (unsigned i = 0; i < count; i++)
+ deleteAllValues(m_nameCollectionInfo[i]);
+
+ if (m_styleSheets)
+ m_styleSheets->documentDestroyed();
+
+ m_weakReference->clear();
+}
+
+#if USE(JSC)
+Document::JSWrapperCache* Document::createWrapperCache(DOMWrapperWorld* world)
+{
+ JSWrapperCache* wrapperCache = new JSWrapperCache;
+ m_wrapperCacheMap.set(world, wrapperCache);
+ if (world->isNormal()) {
+ ASSERT(!m_normalWorldWrapperCache);
+ m_normalWorldWrapperCache = wrapperCache;
+ }
+ world->didCreateWrapperCache(this);
+ return wrapperCache;
+}
+
+void Document::destroyWrapperCache(DOMWrapperWorld* world)
+{
+ Document::JSWrapperCache* wrappers = wrapperCacheMap().take(world);
+ ASSERT(wrappers);
+ delete wrappers;
+ world->didDestroyWrapperCache(this);
+}
+
+void Document::destroyAllWrapperCaches()
+{
+ JSWrapperCacheMap& wrapperCacheMap = this->wrapperCacheMap();
+ while (!wrapperCacheMap.isEmpty())
+ destroyWrapperCache(wrapperCacheMap.begin()->first);
+}
+#endif
+
+void Document::resetLinkColor()
+{
+ m_linkColor = Color(0, 0, 238);
+}
+
+void Document::resetVisitedLinkColor()
+{
+ m_visitedLinkColor = Color(85, 26, 139);
+}
+
+void Document::resetActiveLinkColor()
+{
+ m_activeLinkColor.setNamedColor("red");
+}
+
+void Document::setDocType(PassRefPtr<DocumentType> docType)
+{
+ // This should never be called more than once.
+ // Note: This is not a public DOM method and can only be called by the parser.
+ ASSERT(!m_docType || !docType);
+ if (m_docType && docType)
+ return;
+ m_docType = docType;
+ if (m_docType)
+ m_docType->setDocument(this);
+ determineParseMode();
+}
+
+DOMImplementation* Document::implementation() const
+{
+ if (!m_implementation)
+ m_implementation = DOMImplementation::create();
+ return m_implementation.get();
+}
+
+void Document::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+{
+ ContainerNode::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
+
+ // Invalidate the document element we have cached in case it was replaced.
+ m_documentElement = 0;
+}
+
+void Document::cacheDocumentElement() const
+{
+ ASSERT(!m_documentElement);
+ Node* n = firstChild();
+ while (n && !n->isElementNode())
+ n = n->nextSibling();
+ m_documentElement = static_cast<Element*>(n);
+}
+
+PassRefPtr<Element> Document::createElement(const AtomicString& name, ExceptionCode& ec)
+{
+ if (!isValidName(name)) {
+ ec = INVALID_CHARACTER_ERR;
+ return 0;
+ }
+
+ if (m_isXHTML)
+ return HTMLElementFactory::createHTMLElement(QualifiedName(nullAtom, name, xhtmlNamespaceURI), this, 0, false);
+
+ return createElement(QualifiedName(nullAtom, name, nullAtom), false);
+}
+
+PassRefPtr<DocumentFragment> Document::createDocumentFragment()
+{
+ return DocumentFragment::create(document());
+}
+
+PassRefPtr<Text> Document::createTextNode(const String& data)
+{
+ return Text::create(this, data);
+}
+
+PassRefPtr<Comment> Document::createComment(const String& data)
+{
+ return Comment::create(this, data);
+}
+
+PassRefPtr<CDATASection> Document::createCDATASection(const String& data, ExceptionCode& ec)
+{
+ if (isHTMLDocument()) {
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ }
+ return CDATASection::create(this, data);
+}
+
+PassRefPtr<ProcessingInstruction> Document::createProcessingInstruction(const String& target, const String& data, ExceptionCode& ec)
+{
+ if (!isValidName(target)) {
+ ec = INVALID_CHARACTER_ERR;
+ return 0;
+ }
+ if (isHTMLDocument()) {
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ }
+ return ProcessingInstruction::create(this, target, data);
+}
+
+PassRefPtr<EntityReference> Document::createEntityReference(const String& name, ExceptionCode& ec)
+{
+ if (!isValidName(name)) {
+ ec = INVALID_CHARACTER_ERR;
+ return 0;
+ }
+ if (isHTMLDocument()) {
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ }
+ return EntityReference::create(this, name);
+}
+
+PassRefPtr<EditingText> Document::createEditingTextNode(const String& text)
+{
+ return EditingText::create(this, text);
+}
+
+PassRefPtr<CSSStyleDeclaration> Document::createCSSStyleDeclaration()
+{
+ return CSSMutableStyleDeclaration::create();
+}
+
+PassRefPtr<Node> Document::importNode(Node* importedNode, bool deep, ExceptionCode& ec)
+{
+ ec = 0;
+
+ if (!importedNode
+#if ENABLE(SVG) && ENABLE(DASHBOARD_SUPPORT)
+ || (importedNode->isSVGElement() && page() && page()->settings()->usesDashboardBackwardCompatibilityMode())
+#endif
+ ) {
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ }
+
+ switch (importedNode->nodeType()) {
+ case TEXT_NODE:
+ return createTextNode(importedNode->nodeValue());
+ case CDATA_SECTION_NODE:
+ return createCDATASection(importedNode->nodeValue(), ec);
+ case ENTITY_REFERENCE_NODE:
+ return createEntityReference(importedNode->nodeName(), ec);
+ case PROCESSING_INSTRUCTION_NODE:
+ return createProcessingInstruction(importedNode->nodeName(), importedNode->nodeValue(), ec);
+ case COMMENT_NODE:
+ return createComment(importedNode->nodeValue());
+ case ELEMENT_NODE: {
+ Element* oldElement = static_cast<Element*>(importedNode);
+ RefPtr<Element> newElement = createElementNS(oldElement->namespaceURI(), oldElement->tagQName().toString(), ec);
+
+ if (ec)
+ return 0;
+
+ NamedNodeMap* attrs = oldElement->attributes(true);
+ if (attrs) {
+ unsigned length = attrs->length();
+ for (unsigned i = 0; i < length; i++) {
+ Attribute* attr = attrs->attributeItem(i);
+ newElement->setAttribute(attr->name(), attr->value().impl(), ec);
+ if (ec)
+ return 0;
+ }
+ }
+
+ newElement->copyNonAttributeProperties(oldElement);
+
+ if (deep) {
+ for (Node* oldChild = oldElement->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
+ RefPtr<Node> newChild = importNode(oldChild, true, ec);
+ if (ec)
+ return 0;
+ newElement->appendChild(newChild.release(), ec);
+ if (ec)
+ return 0;
+ }
+ }
+
+ return newElement.release();
+ }
+ case ATTRIBUTE_NODE:
+ return Attr::create(0, this, static_cast<Attr*>(importedNode)->attr()->clone());
+ case DOCUMENT_FRAGMENT_NODE: {
+ DocumentFragment* oldFragment = static_cast<DocumentFragment*>(importedNode);
+ RefPtr<DocumentFragment> newFragment = createDocumentFragment();
+ if (deep) {
+ for (Node* oldChild = oldFragment->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
+ RefPtr<Node> newChild = importNode(oldChild, true, ec);
+ if (ec)
+ return 0;
+ newFragment->appendChild(newChild.release(), ec);
+ if (ec)
+ return 0;
+ }
+ }
+
+ return newFragment.release();
+ }
+ case ENTITY_NODE:
+ case NOTATION_NODE:
+ // 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.
+ // Ability to add these imported nodes to a DocumentType will be considered for addition to a future release of the DOM.
+ case DOCUMENT_NODE:
+ case DOCUMENT_TYPE_NODE:
+ case XPATH_NAMESPACE_NODE:
+ break;
+ }
+
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+}
+
+
+PassRefPtr<Node> Document::adoptNode(PassRefPtr<Node> source, ExceptionCode& ec)
+{
+ if (!source) {
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ }
+
+ if (source->isReadOnlyNode()) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return 0;
+ }
+
+ switch (source->nodeType()) {
+ case ENTITY_NODE:
+ case NOTATION_NODE:
+ case DOCUMENT_NODE:
+ case DOCUMENT_TYPE_NODE:
+ case XPATH_NAMESPACE_NODE:
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ case ATTRIBUTE_NODE: {
+ Attr* attr = static_cast<Attr*>(source.get());
+ if (attr->ownerElement())
+ attr->ownerElement()->removeAttributeNode(attr, ec);
+ attr->setSpecified(true);
+ break;
+ }
+ default:
+ if (source->hasTagName(iframeTag))
+ static_cast<HTMLIFrameElement*>(source.get())->setRemainsAliveOnRemovalFromTree(attached());
+
+ if (source->parentNode())
+ source->parentNode()->removeChild(source.get(), ec);
+ }
+
+ for (Node* node = source.get(); node; node = node->traverseNextNode(source.get()))
+ node->setDocument(this);
+
+ return source;
+}
+
+bool Document::hasPrefixNamespaceMismatch(const QualifiedName& qName)
+{
+ // These checks are from DOM Core Level 2, createElementNS
+ // http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrElNS
+ if (!qName.prefix().isEmpty() && qName.namespaceURI().isNull()) // createElementNS(null, "html:div")
+ return true;
+ if (qName.prefix() == xmlAtom && qName.namespaceURI() != XMLNames::xmlNamespaceURI) // createElementNS("http://www.example.com", "xml:lang")
+ return true;
+
+ // Required by DOM Level 3 Core and unspecified by DOM Level 2 Core:
+ // http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#ID-DocCrElNS
+ // createElementNS("http://www.w3.org/2000/xmlns/", "foo:bar"), createElementNS(null, "xmlns:bar")
+ if ((qName.prefix() == xmlnsAtom && qName.namespaceURI() != XMLNSNames::xmlnsNamespaceURI) || (qName.prefix() != xmlnsAtom && qName.namespaceURI() == XMLNSNames::xmlnsNamespaceURI))
+ return true;
+
+ return false;
+}
+
+// FIXME: This should really be in a possible ElementFactory class
+PassRefPtr<Element> Document::createElement(const QualifiedName& qName, bool createdByParser)
+{
+ RefPtr<Element> e;
+
+ // FIXME: Use registered namespaces and look up in a hash to find the right factory.
+ if (qName.namespaceURI() == xhtmlNamespaceURI)
+ e = HTMLElementFactory::createHTMLElement(qName, this, 0, createdByParser);
+#if ENABLE(SVG)
+ else if (qName.namespaceURI() == SVGNames::svgNamespaceURI)
+ e = SVGElementFactory::createSVGElement(qName, this, createdByParser);
+#endif
+#if ENABLE(WML)
+ else if (qName.namespaceURI() == WMLNames::wmlNamespaceURI)
+ e = WMLElementFactory::createWMLElement(qName, this, createdByParser);
+ else if (isWMLDocument())
+ e = WMLElementFactory::createWMLElement(QualifiedName(nullAtom, qName.localName(), WMLNames::wmlNamespaceURI), this, createdByParser);
+#endif
+#if ENABLE(MATHML)
+ else if (qName.namespaceURI() == MathMLNames::mathmlNamespaceURI)
+ e = MathMLElementFactory::createMathMLElement(qName, this, createdByParser);
+#endif
+
+ if (!e)
+ e = Element::create(qName, document());
+
+ // <image> uses imgTag so we need a special rule.
+#if ENABLE(WML)
+ if (!isWMLDocument())
+#endif
+ ASSERT((qName.matches(imageTag) && e->tagQName().matches(imgTag) && e->tagQName().prefix() == qName.prefix()) || qName == e->tagQName());
+
+ return e.release();
+}
+
+PassRefPtr<Element> Document::createElementNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode& ec)
+{
+ String prefix, localName;
+ if (!parseQualifiedName(qualifiedName, prefix, localName, ec))
+ return 0;
+
+ QualifiedName qName(prefix, localName, namespaceURI);
+ if (hasPrefixNamespaceMismatch(qName)) {
+ ec = NAMESPACE_ERR;
+ return 0;
+ }
+
+ return createElement(qName, false);
+}
+
+Element* Document::getElementById(const AtomicString& elementId) const
+{
+ if (elementId.isEmpty())
+ return 0;
+
+ m_elementsById.checkConsistency();
+
+ Element* element = m_elementsById.get(elementId.impl());
+ if (element)
+ return element;
+
+ if (m_duplicateIds.contains(elementId.impl())) {
+ // We know there's at least one node with this id, but we don't know what the first one is.
+ for (Node *n = traverseNextNode(); n != 0; n = n->traverseNextNode()) {
+ if (n->isElementNode()) {
+ element = static_cast<Element*>(n);
+ if (element->hasID() && element->getIdAttribute() == elementId) {
+ m_duplicateIds.remove(elementId.impl());
+ m_elementsById.set(elementId.impl(), element);
+ return element;
+ }
+ }
+ }
+ ASSERT_NOT_REACHED();
+ }
+ return 0;
+}
+
+String Document::readyState() const
+{
+ if (Frame* f = frame()) {
+ if (f->loader()->isComplete())
+ return "complete";
+ if (parsing())
+ return "loading";
+ return "loaded";
+ // FIXME: What does "interactive" mean?
+ // FIXME: Missing support for "uninitialized".
+ }
+ return String();
+}
+
+String Document::encoding() const
+{
+ if (TextResourceDecoder* d = decoder())
+ return d->encoding().domName();
+ return String();
+}
+
+String Document::defaultCharset() const
+{
+ if (Settings* settings = this->settings())
+ return settings->defaultTextEncodingName();
+ return String();
+}
+
+void Document::setCharset(const String& charset)
+{
+ if (!decoder())
+ return;
+ decoder()->setEncoding(charset, TextResourceDecoder::UserChosenEncoding);
+}
+
+void Document::setXMLVersion(const String& version, ExceptionCode& ec)
+{
+ if (!implementation()->hasFeature("XML", String())) {
+ ec = NOT_SUPPORTED_ERR;
+ return;
+ }
+
+ // FIXME: Also raise NOT_SUPPORTED_ERR if the version is set to a value that is not supported by this Document.
+
+ m_xmlVersion = version;
+}
+
+void Document::setXMLStandalone(bool standalone, ExceptionCode& ec)
+{
+ if (!implementation()->hasFeature("XML", String())) {
+ ec = NOT_SUPPORTED_ERR;
+ return;
+ }
+
+ m_xmlStandalone = standalone;
+}
+
+void Document::setDocumentURI(const String& uri)
+{
+ m_documentURI = uri;
+ updateBaseURL();
+}
+
+KURL Document::baseURI() const
+{
+ return m_baseURL;
+}
+
+// FIXME: We need to discuss the DOM API here at some point. Ideas:
+// * making it receive a rect as parameter, i.e. nodesFromRect(x, y, w, h);
+// * making it receive the expading size of each direction separately,
+// i.e. nodesFromRect(x, y, topSize, rightSize, bottomSize, leftSize);
+PassRefPtr<NodeList> Document::nodesFromRect(int centerX, int centerY, unsigned hPadding, unsigned vPadding, bool ignoreClipping) const
+{
+ // FIXME: Share code between this, elementFromPoint and caretRangeFromPoint.
+ if (!renderer())
+ return 0;
+ Frame* frame = this->frame();
+ if (!frame)
+ return 0;
+ FrameView* frameView = frame->view();
+ if (!frameView)
+ return 0;
+
+ float zoomFactor = frameView->pageZoomFactor();
+ IntPoint point = roundedIntPoint(FloatPoint(centerX * zoomFactor + view()->scrollX(), centerY * zoomFactor + view()->scrollY()));
+ IntSize padding(hPadding, vPadding);
+
+ int type = HitTestRequest::ReadOnly | HitTestRequest::Active;
+
+ // When ignoreClipping is false, this method returns null for coordinates outside of the viewport.
+ if (ignoreClipping)
+ type |= HitTestRequest::IgnoreClipping;
+ else if (!frameView->visibleContentRect().intersects(IntRect(point, padding)))
+ return 0;
+
+ HitTestRequest request(type);
+
+ // Passing a zero padding will trigger a rect hit test, however for the purposes of nodesFromRect,
+ // we special handle this case in order to return a valid NodeList.
+ if (padding.isZero()) {
+ HitTestResult result(point);
+ return handleZeroPadding(request, result);
+ }
+
+ HitTestResult result(point, padding);
+ renderView()->layer()->hitTest(request, result);
+
+ return StaticHashSetNodeList::adopt(result.rectBasedTestResult());
+}
+
+PassRefPtr<NodeList> Document::handleZeroPadding(const HitTestRequest& request, HitTestResult& result) const
+{
+ renderView()->layer()->hitTest(request, result);
+
+ Node* node = result.innerNode();
+ if (!node)
+ return 0;
+
+ node = node->shadowAncestorNode();
+ ListHashSet<RefPtr<Node> > list;
+ list.add(node);
+ return StaticHashSetNodeList::adopt(list);
+}
+
+Element* Document::elementFromPoint(int x, int y) const
+{
+ // FIXME: Share code between this and caretRangeFromPoint.
+ if (!renderer())
+ return 0;
+ Frame* frame = this->frame();
+ if (!frame)
+ return 0;
+ FrameView* frameView = frame->view();
+ if (!frameView)
+ return 0;
+
+ float zoomFactor = frameView->pageZoomFactor();
+ IntPoint point = roundedIntPoint(FloatPoint(x * zoomFactor + view()->scrollX(), y * zoomFactor + view()->scrollY()));
+
+ if (!frameView->visibleContentRect().contains(point))
+ return 0;
+
+ HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
+ HitTestResult result(point);
+ renderView()->layer()->hitTest(request, result);
+
+ Node* n = result.innerNode();
+ while (n && !n->isElementNode())
+ n = n->parentNode();
+ if (n)
+ n = n->shadowAncestorNode();
+ return static_cast<Element*>(n);
+}
+
+PassRefPtr<Range> Document::caretRangeFromPoint(int x, int y)
+{
+ // FIXME: Share code between this and elementFromPoint.
+ if (!renderer())
+ return 0;
+ Frame* frame = this->frame();
+ if (!frame)
+ return 0;
+ FrameView* frameView = frame->view();
+ if (!frameView)
+ return 0;
+
+ float zoomFactor = frameView->pageZoomFactor();
+ IntPoint point = roundedIntPoint(FloatPoint(x * zoomFactor + view()->scrollX(), y * zoomFactor + view()->scrollY()));
+
+ if (!frameView->visibleContentRect().contains(point))
+ return 0;
+
+ HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
+ HitTestResult result(point);
+ renderView()->layer()->hitTest(request, result);
+
+ Node* node = result.innerNode();
+ if (!node)
+ return 0;
+
+ Node* shadowAncestorNode = node->shadowAncestorNode();
+ if (shadowAncestorNode != node) {
+ unsigned offset = shadowAncestorNode->nodeIndex();
+ Node* container = shadowAncestorNode->parentNode();
+ return Range::create(this, container, offset, container, offset);
+ }
+
+ RenderObject* renderer = node->renderer();
+ if (!renderer)
+ return 0;
+ VisiblePosition visiblePosition = renderer->positionForPoint(result.localPoint());
+ if (visiblePosition.isNull())
+ return 0;
+
+ Position rangeCompliantPosition = rangeCompliantEquivalent(visiblePosition);
+ return Range::create(this, rangeCompliantPosition, rangeCompliantPosition);
+}
+
+void Document::addElementById(const AtomicString& elementId, Element* element)
+{
+ typedef HashMap<AtomicStringImpl*, Element*>::iterator iterator;
+ if (!m_duplicateIds.contains(elementId.impl())) {
+ // Fast path. The ID is not already in m_duplicateIds, so we assume that it's
+ // also not already in m_elementsById and do an add. If that add succeeds, we're done.
+ pair<iterator, bool> addResult = m_elementsById.add(elementId.impl(), element);
+ if (addResult.second)
+ return;
+ // The add failed, so this ID was already cached in m_elementsById.
+ // There are multiple elements with this ID. Remove the m_elementsById
+ // cache for this ID so getElementById searches for it next time it is called.
+ m_elementsById.remove(addResult.first);
+ m_duplicateIds.add(elementId.impl());
+ } else {
+ // There are multiple elements with this ID. If it exists, remove the m_elementsById
+ // cache for this ID so getElementById searches for it next time it is called.
+ iterator cachedItem = m_elementsById.find(elementId.impl());
+ if (cachedItem != m_elementsById.end()) {
+ m_elementsById.remove(cachedItem);
+ m_duplicateIds.add(elementId.impl());
+ }
+ }
+ m_duplicateIds.add(elementId.impl());
+}
+
+void Document::removeElementById(const AtomicString& elementId, Element* element)
+{
+ m_elementsById.checkConsistency();
+
+ if (m_elementsById.get(elementId.impl()) == element)
+ m_elementsById.remove(elementId.impl());
+ else
+ m_duplicateIds.remove(elementId.impl());
+}
+
+Element* Document::getElementByAccessKey(const String& key) const
+{
+ if (key.isEmpty())
+ return 0;
+ if (!m_accessKeyMapValid) {
+ for (Node* n = firstChild(); n; n = n->traverseNextNode()) {
+ if (!n->isElementNode())
+ continue;
+ Element* element = static_cast<Element*>(n);
+ const AtomicString& accessKey = element->getAttribute(accesskeyAttr);
+ if (!accessKey.isEmpty())
+ m_elementsByAccessKey.set(accessKey.impl(), element);
+ }
+ m_accessKeyMapValid = true;
+ }
+ return m_elementsByAccessKey.get(key.impl());
+}
+
+/*
+ * Performs three operations:
+ * 1. Convert control characters to spaces
+ * 2. Trim leading and trailing spaces
+ * 3. Collapse internal whitespace.
+ */
+static inline String canonicalizedTitle(Document* document, const String& title)
+{
+ const UChar* characters = title.characters();
+ unsigned length = title.length();
+ unsigned i;
+
+ StringBuffer buffer(length);
+ unsigned builderIndex = 0;
+
+ // Skip leading spaces and leading characters that would convert to spaces
+ for (i = 0; i < length; ++i) {
+ UChar c = characters[i];
+ if (!(c <= 0x20 || c == 0x7F))
+ break;
+ }
+
+ if (i == length)
+ return "";
+
+ // Replace control characters with spaces, and backslashes with currency symbols, and collapse whitespace.
+ bool previousCharWasWS = false;
+ for (; i < length; ++i) {
+ UChar c = characters[i];
+ if (c <= 0x20 || c == 0x7F || (WTF::Unicode::category(c) & (WTF::Unicode::Separator_Line | WTF::Unicode::Separator_Paragraph))) {
+ if (previousCharWasWS)
+ continue;
+ buffer[builderIndex++] = ' ';
+ previousCharWasWS = true;
+ } else {
+ buffer[builderIndex++] = c;
+ previousCharWasWS = false;
+ }
+ }
+
+ // Strip trailing spaces
+ while (builderIndex > 0) {
+ --builderIndex;
+ if (buffer[builderIndex] != ' ')
+ break;
+ }
+
+ if (!builderIndex && buffer[builderIndex] == ' ')
+ return "";
+
+ buffer.shrink(builderIndex + 1);
+
+ // Replace the backslashes with currency symbols if the encoding requires it.
+ document->displayBufferModifiedByEncoding(buffer.characters(), buffer.length());
+
+ return String::adopt(buffer);
+}
+
+void Document::updateTitle()
+{
+ m_title = canonicalizedTitle(this, m_rawTitle);
+ if (Frame* f = frame())
+ f->loader()->setTitle(m_title);
+}
+
+void Document::setTitle(const String& title, Element* titleElement)
+{
+ if (!titleElement) {
+ // Title set by JavaScript -- overrides any title elements.
+ m_titleSetExplicitly = true;
+ if (!isHTMLDocument())
+ m_titleElement = 0;
+ else if (!m_titleElement) {
+ if (HTMLElement* headElement = head()) {
+ m_titleElement = createElement(titleTag, false);
+ ExceptionCode ec = 0;
+ headElement->appendChild(m_titleElement, ec);
+ ASSERT(!ec);
+ }
+ }
+ } else if (titleElement != m_titleElement) {
+ if (m_titleElement || m_titleSetExplicitly)
+ // Only allow the first title element to change the title -- others have no effect.
+ return;
+ m_titleElement = titleElement;
+ }
+
+ if (m_rawTitle == title)
+ return;
+
+ m_rawTitle = title;
+ updateTitle();
+
+ if (m_titleSetExplicitly && m_titleElement && m_titleElement->hasTagName(titleTag) && !titleElement)
+ static_cast<HTMLTitleElement*>(m_titleElement.get())->setText(m_title);
+}
+
+void Document::removeTitle(Element* titleElement)
+{
+ if (m_titleElement != titleElement)
+ return;
+
+ m_titleElement = 0;
+ m_titleSetExplicitly = false;
+
+ // Update title based on first title element in the head, if one exists.
+ if (HTMLElement* headElement = head()) {
+ for (Node* e = headElement->firstChild(); e; e = e->nextSibling())
+ if (e->hasTagName(titleTag)) {
+ HTMLTitleElement* titleElement = static_cast<HTMLTitleElement*>(e);
+ setTitle(titleElement->text(), titleElement);
+ break;
+ }
+ }
+
+ if (!m_titleElement && !m_rawTitle.isEmpty()) {
+ m_rawTitle = "";
+ updateTitle();
+ }
+}
+
+String Document::nodeName() const
+{
+ return "#document";
+}
+
+Node::NodeType Document::nodeType() const
+{
+ return DOCUMENT_NODE;
+}
+
+FrameView* Document::view() const
+{
+ return m_frame ? m_frame->view() : 0;
+}
+
+Page* Document::page() const
+{
+ return m_frame ? m_frame->page() : 0;
+}
+
+Settings* Document::settings() const
+{
+ return m_frame ? m_frame->settings() : 0;
+}
+
+PassRefPtr<Range> Document::createRange()
+{
+ return Range::create(this);
+}
+
+PassRefPtr<NodeIterator> Document::createNodeIterator(Node* root, unsigned whatToShow,
+ PassRefPtr<NodeFilter> filter, bool expandEntityReferences, ExceptionCode& ec)
+{
+ if (!root) {
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ }
+ return NodeIterator::create(root, whatToShow, filter, expandEntityReferences);
+}
+
+PassRefPtr<TreeWalker> Document::createTreeWalker(Node *root, unsigned whatToShow,
+ PassRefPtr<NodeFilter> filter, bool expandEntityReferences, ExceptionCode& ec)
+{
+ if (!root) {
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+ }
+ return TreeWalker::create(root, whatToShow, filter, expandEntityReferences);
+}
+
+void Document::scheduleStyleRecalc()
+{
+ if (m_styleRecalcTimer.isActive() || inPageCache())
+ return;
+
+ ASSERT(childNeedsStyleRecalc());
+
+ if (!documentsThatNeedStyleRecalc)
+ documentsThatNeedStyleRecalc = new HashSet<Document*>;
+ documentsThatNeedStyleRecalc->add(this);
+
+ // FIXME: Why on earth is this here? This is clearly misplaced.
+ if (m_accessKeyMapValid) {
+ m_accessKeyMapValid = false;
+ m_elementsByAccessKey.clear();
+ }
+
+ m_styleRecalcTimer.startOneShot(0);
+}
+
+void Document::unscheduleStyleRecalc()
+{
+ ASSERT(!childNeedsStyleRecalc());
+
+ if (documentsThatNeedStyleRecalc)
+ documentsThatNeedStyleRecalc->remove(this);
+
+ m_styleRecalcTimer.stop();
+}
+
+void Document::styleRecalcTimerFired(Timer<Document>*)
+{
+ updateStyleIfNeeded();
+}
+
+bool Document::childNeedsAndNotInStyleRecalc()
+{
+ return childNeedsStyleRecalc() && !m_inStyleRecalc;
+}
+
+void Document::recalcStyle(StyleChange change)
+{
+ // we should not enter style recalc while painting
+ if (view() && view()->isPainting()) {
+ ASSERT(!view()->isPainting());
+ return;
+ }
+
+ if (m_inStyleRecalc)
+ return; // Guard against re-entrancy. -dwh
+
+#if ENABLE(INSPECTOR)
+ if (InspectorTimelineAgent* timelineAgent = inspectorTimelineAgent())
+ timelineAgent->willRecalculateStyle();
+#endif
+
+ m_inStyleRecalc = true;
+ suspendPostAttachCallbacks();
+ RenderWidget::suspendWidgetHierarchyUpdates();
+ if (view())
+ view()->pauseScheduledEvents();
+
+ ASSERT(!renderer() || renderArena());
+ if (!renderer() || !renderArena())
+ goto bail_out;
+
+ if (change == Force) {
+ // style selector may set this again during recalc
+ m_hasNodesWithPlaceholderStyle = false;
+
+ RefPtr<RenderStyle> documentStyle = CSSStyleSelector::styleForDocument(this);
+ StyleChange ch = diff(documentStyle.get(), renderer()->style());
+ if (renderer() && ch != NoChange)
+ renderer()->setStyle(documentStyle.release());
+ }
+
+ for (Node* n = firstChild(); n; n = n->nextSibling())
+ if (change >= Inherit || n->childNeedsStyleRecalc() || n->needsStyleRecalc())
+ n->recalcStyle(change);
+
+#if USE(ACCELERATED_COMPOSITING)
+ if (view()) {
+ bool layoutPending = view()->layoutPending() || renderer()->needsLayout();
+ // If we didn't update compositing layers because of layout(), we need to do so here.
+ if (!layoutPending)
+ view()->updateCompositingLayers();
+ }
+#endif
+
+bail_out:
+ setNeedsStyleRecalc(NoStyleChange);
+ clearChildNeedsStyleRecalc();
+ unscheduleStyleRecalc();
+
+ if (view())
+ view()->resumeScheduledEvents();
+ RenderWidget::resumeWidgetHierarchyUpdates();
+ resumePostAttachCallbacks();
+ m_inStyleRecalc = false;
+
+ // If we wanted to call implicitClose() during recalcStyle, do so now that we're finished.
+ if (m_closeAfterStyleRecalc) {
+ m_closeAfterStyleRecalc = false;
+ implicitClose();
+ }
+
+#if ENABLE(INSPECTOR)
+ if (InspectorTimelineAgent* timelineAgent = inspectorTimelineAgent())
+ timelineAgent->didRecalculateStyle();
+#endif
+}
+
+void Document::updateStyleIfNeeded()
+{
+ if (!childNeedsStyleRecalc() || inPageCache())
+ return;
+
+ if (m_frame)
+ m_frame->animation()->beginAnimationUpdate();
+
+ recalcStyle(NoChange);
+
+ // Tell the animation controller that updateStyleIfNeeded is finished and it can do any post-processing
+ if (m_frame)
+ m_frame->animation()->endAnimationUpdate();
+}
+
+void Document::updateStyleForAllDocuments()
+{
+ if (!documentsThatNeedStyleRecalc)
+ return;
+
+ while (documentsThatNeedStyleRecalc->size()) {
+ HashSet<Document*>::iterator it = documentsThatNeedStyleRecalc->begin();
+ Document* doc = *it;
+ documentsThatNeedStyleRecalc->remove(doc);
+ ASSERT(doc->childNeedsStyleRecalc() && !doc->inPageCache());
+ doc->updateStyleIfNeeded();
+ }
+}
+
+void Document::updateLayout()
+{
+ if (Element* oe = ownerElement())
+ oe->document()->updateLayout();
+
+ updateStyleIfNeeded();
+
+ // Only do a layout if changes have occurred that make it necessary.
+ FrameView* v = view();
+ if (v && renderer() && (v->layoutPending() || renderer()->needsLayout()))
+ v->layout();
+}
+
+// FIXME: This is a bad idea and needs to be removed eventually.
+// Other browsers load stylesheets before they continue parsing the web page.
+// Since we don't, we can run JavaScript code that needs answers before the
+// stylesheets are loaded. Doing a layout ignoring the pending stylesheets
+// lets us get reasonable answers. The long term solution to this problem is
+// to instead suspend JavaScript execution.
+void Document::updateLayoutIgnorePendingStylesheets()
+{
+ bool oldIgnore = m_ignorePendingStylesheets;
+
+ if (!haveStylesheetsLoaded()) {
+ m_ignorePendingStylesheets = true;
+ // FIXME: We are willing to attempt to suppress painting with outdated style info only once. Our assumption is that it would be
+ // dangerous to try to stop it a second time, after page content has already been loaded and displayed
+ // with accurate style information. (Our suppression involves blanking the whole page at the
+ // moment. If it were more refined, we might be able to do something better.)
+ // It's worth noting though that this entire method is a hack, since what we really want to do is
+ // suspend JS instead of doing a layout with inaccurate information.
+ if (body() && !body()->renderer() && m_pendingSheetLayout == NoLayoutWithPendingSheets) {
+ m_pendingSheetLayout = DidLayoutWithPendingSheets;
+ updateStyleSelector();
+ } else if (m_hasNodesWithPlaceholderStyle)
+ // If new nodes have been added or style recalc has been done with style sheets still pending, some nodes
+ // may not have had their real style calculated yet. Normally this gets cleaned when style sheets arrive
+ // but here we need up-to-date style immediately.
+ recalcStyle(Force);
+ }
+
+ updateLayout();
+
+ m_ignorePendingStylesheets = oldIgnore;
+}
+
+PassRefPtr<RenderStyle> Document::styleForElementIgnoringPendingStylesheets(Element* element)
+{
+ ASSERT_ARG(element, element->document() == this);
+
+ bool oldIgnore = m_ignorePendingStylesheets;
+ m_ignorePendingStylesheets = true;
+ RefPtr<RenderStyle> style = styleSelector()->styleForElement(element, element->parent() ? element->parent()->computedStyle() : 0);
+ m_ignorePendingStylesheets = oldIgnore;
+ return style.release();
+}
+
+PassRefPtr<RenderStyle> Document::styleForPage(int pageIndex)
+{
+ RefPtr<RenderStyle> style = styleSelector()->styleForPage(pageIndex);
+ return style.release();
+}
+
+bool Document::isPageBoxVisible(int pageIndex)
+{
+ RefPtr<RenderStyle> style = styleForPage(pageIndex);
+ return style->visibility() != HIDDEN; // display property doesn't apply to @page.
+}
+
+void Document::pageSizeAndMarginsInPixels(int pageIndex, IntSize& pageSize, int& marginTop, int& marginRight, int& marginBottom, int& marginLeft)
+{
+ RefPtr<RenderStyle> style = styleForPage(pageIndex);
+
+ int width = pageSize.width();
+ int height = pageSize.height();
+ switch (style->pageSizeType()) {
+ case PAGE_SIZE_AUTO:
+ break;
+ case PAGE_SIZE_AUTO_LANDSCAPE:
+ if (width < height)
+ std::swap(width, height);
+ break;
+ case PAGE_SIZE_AUTO_PORTRAIT:
+ if (width > height)
+ std::swap(width, height);
+ break;
+ case PAGE_SIZE_RESOLVED: {
+ LengthSize size = style->pageSize();
+ ASSERT(size.width().isFixed());
+ ASSERT(size.height().isFixed());
+ width = size.width().calcValue(0);
+ height = size.height().calcValue(0);
+ break;
+ }
+ default:
+ ASSERT_NOT_REACHED();
+ }
+ pageSize = IntSize(width, height);
+
+ // The percentage is calculated with respect to the width even for margin top and bottom.
+ // http://www.w3.org/TR/CSS2/box.html#margin-properties
+ marginTop = style->marginTop().isAuto() ? marginTop : style->marginTop().calcValue(width);
+ marginRight = style->marginRight().isAuto() ? marginRight : style->marginRight().calcValue(width);
+ marginBottom = style->marginBottom().isAuto() ? marginBottom : style->marginBottom().calcValue(width);
+ marginLeft = style->marginLeft().isAuto() ? marginLeft : style->marginLeft().calcValue(width);
+}
+
+void Document::createStyleSelector()
+{
+ bool matchAuthorAndUserStyles = true;
+ if (Settings* docSettings = settings())
+ matchAuthorAndUserStyles = docSettings->authorAndUserStylesEnabled();
+ m_styleSelector.set(new CSSStyleSelector(this, m_styleSheets.get(), m_mappedElementSheet.get(), pageUserSheet(), pageGroupUserSheets(),
+ !inCompatMode(), matchAuthorAndUserStyles));
+}
+
+void Document::attach()
+{
+ ASSERT(!attached());
+ ASSERT(!m_inPageCache);
+ ASSERT(!m_axObjectCache);
+
+ if (!m_renderArena)
+ m_renderArena = new RenderArena();
+
+ // Create the rendering tree
+ setRenderer(new (m_renderArena.get()) RenderView(this, view()));
+#if USE(ACCELERATED_COMPOSITING)
+ renderView()->didMoveOnscreen();
+#endif
+
+ recalcStyle(Force);
+
+ RenderObject* render = renderer();
+ setRenderer(0);
+
+ ContainerNode::attach();
+
+ setRenderer(render);
+}
+
+void Document::detach()
+{
+ ASSERT(attached());
+ ASSERT(!m_inPageCache);
+
+ clearAXObjectCache();
+ stopActiveDOMObjects();
+
+ RenderObject* render = renderer();
+
+ // Send out documentWillBecomeInactive() notifications to registered elements,
+ // in order to stop media elements
+ documentWillBecomeInactive();
+
+#if ENABLE(SHARED_WORKERS)
+ SharedWorkerRepository::documentDetached(this);
+#endif
+
+ if (m_frame) {
+ FrameView* view = m_frame->view();
+ if (view)
+ view->detachCustomScrollbars();
+
+#if ENABLE(TOUCH_EVENTS)
+ Page* ownerPage = page();
+ if (ownerPage && (m_frame == ownerPage->mainFrame())) {
+ // Inform the Chrome Client that it no longer needs to
+ // foward touch events to WebCore as the document is being
+ // destroyed. It may start again if a subsequent page
+ // registers a touch event listener.
+ ownerPage->chrome()->client()->needTouchEvents(false);
+ }
+#endif
+ }
+
+ // indicate destruction mode, i.e. attached() but renderer == 0
+ setRenderer(0);
+
+ m_hoverNode = 0;
+ m_focusedNode = 0;
+ m_activeNode = 0;
+
+ ContainerNode::detach();
+
+ unscheduleStyleRecalc();
+
+ if (render)
+ render->destroy();
+
+ // This is required, as our Frame might delete itself as soon as it detaches
+ // us. However, this violates Node::detach() semantics, as it's never
+ // possible to re-attach. Eventually Document::detach() should be renamed,
+ // or this setting of the frame to 0 could be made explicit in each of the
+ // callers of Document::detach().
+ m_frame = 0;
+ m_renderArena.clear();
+}
+
+void Document::removeAllEventListeners()
+{
+ EventTarget::removeAllEventListeners();
+
+ if (DOMWindow* domWindow = this->domWindow())
+ domWindow->removeAllEventListeners();
+ for (Node* node = firstChild(); node; node = node->traverseNextNode())
+ node->removeAllEventListeners();
+}
+
+RenderView* Document::renderView() const
+{
+ return toRenderView(renderer());
+}
+
+void Document::clearAXObjectCache()
+{
+ // clear cache in top document
+ if (m_axObjectCache) {
+ delete m_axObjectCache;
+ m_axObjectCache = 0;
+ return;
+ }
+
+ // ask the top-level document to clear its cache
+ Document* doc = topDocument();
+ if (doc != this)
+ doc->clearAXObjectCache();
+}
+
+AXObjectCache* Document::axObjectCache() const
+{
+ // The only document that actually has a AXObjectCache is the top-level
+ // document. This is because we need to be able to get from any WebCoreAXObject
+ // to any other WebCoreAXObject on the same page. Using a single cache allows
+ // lookups across nested webareas (i.e. multiple documents).
+
+ if (m_axObjectCache) {
+ // return already known top-level cache
+ if (!ownerElement())
+ return m_axObjectCache;
+
+ // In some pages with frames, the cache is created before the sub-webarea is
+ // inserted into the tree. Here, we catch that case and just toss the old
+ // cache and start over.
+ // NOTE: This recovery may no longer be needed. I have been unable to trigger
+ // it again. See rdar://5794454
+ // FIXME: Can this be fixed when inserting the subframe instead of now?
+ // FIXME: If this function was called to get the cache in order to remove
+ // an AXObject, we are now deleting the cache as a whole and returning a
+ // new empty cache that does not contain the AXObject! That should actually
+ // be OK. I am concerned about other cases like this where accessing the
+ // cache blows away the AXObject being operated on.
+ delete m_axObjectCache;
+ m_axObjectCache = 0;
+ }
+
+ // ask the top-level document for its cache
+ Document* doc = topDocument();
+ if (doc != this)
+ return doc->axObjectCache();
+
+ // this is the top-level document, so install a new cache
+ m_axObjectCache = new AXObjectCache;
+ return m_axObjectCache;
+}
+
+void Document::setVisuallyOrdered()
+{
+ m_visuallyOrdered = true;
+ if (renderer())
+ renderer()->style()->setVisuallyOrdered(true);
+}
+
+DocumentParser* Document::createParser()
+{
+ // FIXME: this should probably pass the frame instead
+ return new XMLDocumentParser(this, view());
+}
+
+ScriptableDocumentParser* Document::scriptableDocumentParser() const
+{
+ return parser() ? parser()->asScriptableDocumentParser() : 0;
+}
+
+void Document::open(Document* ownerDocument)
+{
+ if (ownerDocument) {
+ setURL(ownerDocument->url());
+ m_cookieURL = ownerDocument->cookieURL();
+ ScriptExecutionContext::setSecurityOrigin(ownerDocument->securityOrigin());
+ }
+
+ if (m_frame) {
+ ScriptableDocumentParser* parser = scriptableDocumentParser();
+ if (m_frame->loader()->isLoadingMainResource() || (parser && parser->isExecutingScript()))
+ return;
+
+ if (m_frame->loader()->state() == FrameStateProvisional)
+ m_frame->loader()->stopAllLoaders();
+ }
+
+ implicitOpen();
+
+ if (DOMWindow* domWindow = this->domWindow())
+ domWindow->removeAllEventListeners();
+
+ if (m_frame)
+ m_frame->loader()->didExplicitOpen();
+}
+
+void Document::cancelParsing()
+{
+ if (m_parser) {
+ // We have to clear the parser to avoid possibly triggering
+ // the onload handler when closing as a side effect of a cancel-style
+ // change, such as opening a new document or closing the window while
+ // still parsing
+ m_parser.clear();
+ close();
+ }
+}
+
+void Document::implicitOpen()
+{
+ cancelParsing();
+
+ m_parser.clear();
+
+ removeChildren();
+
+ m_parser = createParser();
+ setParsing(true);
+
+ ScriptableDocumentParser* parser = scriptableDocumentParser();
+ if (m_frame && parser)
+ parser->setXSSAuditor(m_frame->script()->xssAuditor());
+
+ // If we reload, the animation controller sticks around and has
+ // a stale animation time. We need to update it here.
+ if (m_frame && m_frame->animation())
+ m_frame->animation()->beginAnimationUpdate();
+}
+
+HTMLElement* Document::body() const
+{
+ Node* de = documentElement();
+ if (!de)
+ return 0;
+
+ // try to prefer a FRAMESET element over BODY
+ Node* body = 0;
+ for (Node* i = de->firstChild(); i; i = i->nextSibling()) {
+ if (i->hasTagName(framesetTag))
+ return static_cast<HTMLElement*>(i);
+
+ if (i->hasTagName(bodyTag) && !body)
+ body = i;
+ }
+ return static_cast<HTMLElement*>(body);
+}
+
+void Document::setBody(PassRefPtr<HTMLElement> newBody, ExceptionCode& ec)
+{
+ if (!newBody || !documentElement()) {
+ ec = HIERARCHY_REQUEST_ERR;
+ return;
+ }
+
+ HTMLElement* b = body();
+ if (!b)
+ documentElement()->appendChild(newBody, ec);
+ else
+ documentElement()->replaceChild(newBody, b, ec);
+}
+
+HTMLHeadElement* Document::head()
+{
+ Node* de = documentElement();
+ if (!de)
+ return 0;
+
+ for (Node* e = de->firstChild(); e; e = e->nextSibling())
+ if (e->hasTagName(headTag))
+ return static_cast<HTMLHeadElement*>(e);
+
+ return 0;
+}
+
+void Document::close()
+{
+ Frame* frame = this->frame();
+ if (frame) {
+ // This code calls implicitClose() if all loading has completed.
+ FrameLoader* frameLoader = frame->loader();
+ frameLoader->writer()->endIfNotLoadingMainResource();
+ frameLoader->checkCompleted();
+ } else {
+ // Because we have no frame, we don't know if all loading has completed,
+ // so we just call implicitClose() immediately. FIXME: This might fire
+ // the load event prematurely <http://bugs.webkit.org/show_bug.cgi?id=14568>.
+ implicitClose();
+ }
+}
+
+void Document::implicitClose()
+{
+ // 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.
+ if (m_inStyleRecalc) {
+ m_closeAfterStyleRecalc = true;
+ return;
+ }
+
+ bool wasLocationChangePending = frame() && frame()->redirectScheduler()->locationChangePending();
+ bool doload = !parsing() && m_parser && !m_processingLoadEvent && !wasLocationChangePending;
+
+ if (!doload)
+ return;
+
+ m_processingLoadEvent = true;
+
+ ScriptableDocumentParser* parser = scriptableDocumentParser();
+ m_wellFormed = parser && parser->wellFormed();
+
+ // We have to clear the parser, in case someone document.write()s from the
+ // onLoad event handler, as in Radar 3206524.
+ m_parser.clear();
+
+ // Parser should have picked up all preloads by now
+ m_docLoader->clearPreloads();
+
+ // Create a head and a body if we don't have those yet (e.g. for about:blank).
+ if (!this->body() && isHTMLDocument()) {
+ if (Node* documentElement = this->documentElement()) {
+ ExceptionCode ec = 0;
+
+ // The implicit <head> isn't expected in older versions of Mail - <rdar://problem/6863795>
+ if (!head() && shouldCreateImplicitHead(this)) {
+ documentElement->appendChild(HTMLHeadElement::create(this), ec);
+ ASSERT(!ec);
+ }
+ documentElement->appendChild(HTMLBodyElement::create(this), ec);
+ ASSERT(!ec);
+ }
+ }
+
+ // FIXME: We kick off the icon loader when the Document is done parsing.
+ // There are earlier opportunities we could start it:
+ // -When the <head> finishes parsing
+ // -When any new HTMLLinkElement is inserted into the document
+ // But those add a dynamic component to the favicon that has UI
+ // ramifications, and we need to decide what is the Right Thing To Do(tm)
+ Frame* f = frame();
+ if (f)
+ f->loader()->startIconLoader();
+
+ // Resume the animations (or start them)
+ if (f)
+ f->animation()->resumeAnimations(this);
+
+ ImageLoader::dispatchPendingBeforeLoadEvents();
+ ImageLoader::dispatchPendingLoadEvents();
+ dispatchWindowLoadEvent();
+ enqueuePageshowEvent(PageshowEventNotPersisted);
+ if (m_pendingStateObject)
+ enqueuePopstateEvent(m_pendingStateObject.release());
+
+ if (f)
+ f->loader()->handledOnloadEvents();
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement())
+ printf("onload fired at %d\n", elapsedTime());
+#endif
+
+ m_processingLoadEvent = false;
+
+ // An event handler may have removed the frame
+ if (!frame())
+ return;
+
+ // Make sure both the initial layout and reflow happen after the onload
+ // fires. This will improve onload scores, and other browsers do it.
+ // If they wanna cheat, we can too. -dwh
+
+ if (frame()->redirectScheduler()->locationChangePending() && elapsedTime() < cLayoutScheduleThreshold) {
+ // Just bail out. Before or during the onload we were shifted to another page.
+ // The old i-Bench suite does this. When this happens don't bother painting or laying out.
+ view()->unscheduleRelayout();
+ return;
+ }
+
+ frame()->loader()->checkCallImplicitClose();
+ RenderObject* renderObject = renderer();
+
+ // We used to force a synchronous display and flush here. This really isn't
+ // necessary and can in fact be actively harmful if pages are loading at a rate of > 60fps
+ // (if your platform is syncing flushes and limiting them to 60fps).
+ m_overMinimumLayoutThreshold = true;
+ if (!ownerElement() || (ownerElement()->renderer() && !ownerElement()->renderer()->needsLayout())) {
+ updateStyleIfNeeded();
+
+ // Always do a layout after loading if needed.
+ if (view() && renderObject && (!renderObject->firstChild() || renderObject->needsLayout()))
+ view()->layout();
+ }
+
+#if PLATFORM(MAC)
+ if (f && renderObject && this == topDocument() && AXObjectCache::accessibilityEnabled()) {
+ // The AX cache may have been cleared at this point, but we need to make sure it contains an
+ // AX object to send the notification to. getOrCreate will make sure that an valid AX object
+ // exists in the cache (we ignore the return value because we don't need it here). This is
+ // only safe to call when a layout is not in progress, so it can not be used in postNotification.
+ axObjectCache()->getOrCreate(renderObject);
+ axObjectCache()->postNotification(renderObject, AXObjectCache::AXLoadComplete, true);
+ }
+#endif
+
+#if ENABLE(SVG)
+ // FIXME: Officially, time 0 is when the outermost <svg> receives its
+ // SVGLoad event, but we don't implement those yet. This is close enough
+ // for now. In some cases we should have fired earlier.
+ if (svgExtensions())
+ accessSVGExtensions()->startAnimations();
+#endif
+}
+
+void Document::setParsing(bool b)
+{
+ m_bParsing = b;
+ if (!m_bParsing && view())
+ view()->scheduleRelayout();
+
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement() && !m_bParsing)
+ printf("Parsing finished at %d\n", elapsedTime());
+#endif
+}
+
+bool Document::shouldScheduleLayout()
+{
+ // This function will only be called when FrameView thinks a layout is needed.
+ // This enforces a couple extra rules.
+ //
+ // (a) Only schedule a layout once the stylesheets are loaded.
+ // (b) Only schedule layout once we have a body element.
+
+ return (haveStylesheetsLoaded() && body()) ||
+ (documentElement() && !documentElement()->hasTagName(htmlTag));
+}
+
+int Document::minimumLayoutDelay()
+{
+ if (m_overMinimumLayoutThreshold)
+ return m_extraLayoutDelay;
+
+ int elapsed = elapsedTime();
+ m_overMinimumLayoutThreshold = elapsed > cLayoutScheduleThreshold;
+
+ // We'll want to schedule the timer to fire at the minimum layout threshold.
+ return max(0, cLayoutScheduleThreshold - elapsed) + m_extraLayoutDelay;
+}
+
+int Document::elapsedTime() const
+{
+ return static_cast<int>((currentTime() - m_startTime) * 1000);
+}
+
+void Document::write(const SegmentedString& text, Document* ownerDocument)
+{
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement())
+ printf("Beginning a document.write at %d\n", elapsedTime());
+#endif
+
+ if (!m_parser)
+ open(ownerDocument);
+
+ ASSERT(m_parser);
+ m_parser->insert(text);
+
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement())
+ printf("Ending a document.write at %d\n", elapsedTime());
+#endif
+}
+
+void Document::write(const String& text, Document* ownerDocument)
+{
+ write(SegmentedString(text), ownerDocument);
+}
+
+void Document::writeln(const String& text, Document* ownerDocument)
+{
+ write(text, ownerDocument);
+ write("\n", ownerDocument);
+}
+
+void Document::finishParsing()
+{
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement())
+ printf("Received all data at %d\n", elapsedTime());
+#endif
+
+ // Let the parser go through as much data as it can. There will be three possible outcomes after
+ // finish() is called:
+ // (1) All remaining data is parsed, document isn't loaded yet
+ // (2) All remaining data is parsed, document is loaded, parser gets deleted
+ // (3) Data is still remaining to be parsed.
+ if (m_parser)
+ m_parser->finish();
+}
+
+const KURL& Document::virtualURL() const
+{
+ return m_url;
+}
+
+KURL Document::virtualCompleteURL(const String& url) const
+{
+ return completeURL(url);
+}
+
+void Document::setURL(const KURL& url)
+{
+ const KURL& newURL = url.isEmpty() ? blankURL() : url;
+ if (newURL == m_url)
+ return;
+
+ m_url = newURL;
+ m_documentURI = m_url.string();
+ updateBaseURL();
+}
+
+void Document::setBaseElementURL(const KURL& baseElementURL)
+{
+ m_baseElementURL = baseElementURL;
+ updateBaseURL();
+}
+
+void Document::updateBaseURL()
+{
+ // DOM 3 Core: When the Document supports the feature "HTML" [DOM Level 2 HTML], the base URI is computed using
+ // first the value of the href attribute of the HTML BASE element if any, and the value of the documentURI attribute
+ // from the Document interface otherwise.
+ if (m_baseElementURL.isEmpty()) {
+ // The documentURI attribute is an arbitrary string. DOM 3 Core does not specify how it should be resolved,
+ // so we use a null base URL.
+ m_baseURL = KURL(KURL(), documentURI());
+ } else
+ m_baseURL = m_baseElementURL;
+ if (!m_baseURL.isValid())
+ m_baseURL = KURL();
+
+ if (m_elemSheet)
+ m_elemSheet->setFinalURL(m_baseURL);
+ if (m_mappedElementSheet)
+ m_mappedElementSheet->setFinalURL(m_baseURL);
+}
+
+String Document::userAgent(const KURL& url) const
+{
+ return frame() ? frame()->loader()->userAgent(url) : String();
+}
+
+CSSStyleSheet* Document::pageUserSheet()
+{
+ if (m_pageUserSheet)
+ return m_pageUserSheet.get();
+
+ Page* owningPage = page();
+ if (!owningPage)
+ return 0;
+
+ String userSheetText = owningPage->userStyleSheet();
+ if (userSheetText.isEmpty())
+ return 0;
+
+ // Parse the sheet and cache it.
+ m_pageUserSheet = CSSStyleSheet::createInline(this, settings()->userStyleSheetLocation());
+ m_pageUserSheet->setIsUserStyleSheet(true);
+ m_pageUserSheet->parseString(userSheetText, !inCompatMode());
+ return m_pageUserSheet.get();
+}
+
+void Document::clearPageUserSheet()
+{
+ m_pageUserSheet = 0;
+ updateStyleSelector();
+}
+
+const Vector<RefPtr<CSSStyleSheet> >* Document::pageGroupUserSheets() const
+{
+ if (m_pageGroupUserSheetCacheValid)
+ return m_pageGroupUserSheets.get();
+
+ m_pageGroupUserSheetCacheValid = true;
+
+ Page* owningPage = page();
+ if (!owningPage)
+ return 0;
+
+ const PageGroup& pageGroup = owningPage->group();
+ const UserStyleSheetMap* sheetsMap = pageGroup.userStyleSheets();
+ if (!sheetsMap)
+ return 0;
+
+ UserStyleSheetMap::const_iterator end = sheetsMap->end();
+ for (UserStyleSheetMap::const_iterator it = sheetsMap->begin(); it != end; ++it) {
+ const UserStyleSheetVector* sheets = it->second;
+ for (unsigned i = 0; i < sheets->size(); ++i) {
+ const UserStyleSheet* sheet = sheets->at(i).get();
+ if (sheet->injectedFrames() == InjectInTopFrameOnly && ownerElement())
+ continue;
+ if (!UserContentURLPattern::matchesPatterns(url(), sheet->whitelist(), sheet->blacklist()))
+ continue;
+ RefPtr<CSSStyleSheet> parsedSheet = CSSStyleSheet::createInline(const_cast<Document*>(this), sheet->url());
+ parsedSheet->setIsUserStyleSheet(true);
+ parsedSheet->parseString(sheet->source(), !inCompatMode());
+ if (!m_pageGroupUserSheets)
+ m_pageGroupUserSheets.set(new Vector<RefPtr<CSSStyleSheet> >);
+ m_pageGroupUserSheets->append(parsedSheet.release());
+ }
+ }
+
+ return m_pageGroupUserSheets.get();
+}
+
+void Document::clearPageGroupUserSheets()
+{
+ m_pageGroupUserSheets.clear();
+ m_pageGroupUserSheetCacheValid = false;
+ updateStyleSelector();
+}
+
+CSSStyleSheet* Document::elementSheet()
+{
+ if (!m_elemSheet)
+ m_elemSheet = CSSStyleSheet::createInline(this, m_baseURL);
+ return m_elemSheet.get();
+}
+
+CSSStyleSheet* Document::mappedElementSheet()
+{
+ if (!m_mappedElementSheet)
+ m_mappedElementSheet = CSSStyleSheet::createInline(this, m_baseURL);
+ return m_mappedElementSheet.get();
+}
+
+static Node* nextNodeWithExactTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
+{
+ // Search is inclusive of start
+ for (Node* n = start; n; n = n->traverseNextNode())
+ if (n->isKeyboardFocusable(event) && n->tabIndex() == tabIndex)
+ return n;
+
+ return 0;
+}
+
+static Node* previousNodeWithExactTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
+{
+ // Search is inclusive of start
+ for (Node* n = start; n; n = n->traversePreviousNode())
+ if (n->isKeyboardFocusable(event) && n->tabIndex() == tabIndex)
+ return n;
+
+ return 0;
+}
+
+static Node* nextNodeWithGreaterTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
+{
+ // Search is inclusive of start
+ int winningTabIndex = SHRT_MAX + 1;
+ Node* winner = 0;
+ for (Node* n = start; n; n = n->traverseNextNode())
+ if (n->isKeyboardFocusable(event) && n->tabIndex() > tabIndex && n->tabIndex() < winningTabIndex) {
+ winner = n;
+ winningTabIndex = n->tabIndex();
+ }
+
+ return winner;
+}
+
+static Node* previousNodeWithLowerTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
+{
+ // Search is inclusive of start
+ int winningTabIndex = 0;
+ Node* winner = 0;
+ for (Node* n = start; n; n = n->traversePreviousNode())
+ if (n->isKeyboardFocusable(event) && n->tabIndex() < tabIndex && n->tabIndex() > winningTabIndex) {
+ winner = n;
+ winningTabIndex = n->tabIndex();
+ }
+
+ return winner;
+}
+
+Node* Document::nextFocusableNode(Node* start, KeyboardEvent* event)
+{
+ if (start) {
+ // If a node is excluded from the normal tabbing cycle, the next focusable node is determined by tree order
+ if (start->tabIndex() < 0) {
+ for (Node* n = start->traverseNextNode(); n; n = n->traverseNextNode())
+ if (n->isKeyboardFocusable(event) && n->tabIndex() >= 0)
+ return n;
+ }
+
+ // First try to find a node with the same tabindex as start that comes after start in the document.
+ if (Node* winner = nextNodeWithExactTabIndex(start->traverseNextNode(), start->tabIndex(), event))
+ return winner;
+
+ if (start->tabIndex() == 0)
+ // We've reached the last node in the document with a tabindex of 0. This is the end of the tabbing order.
+ return 0;
+ }
+
+ // Look for the first node in the document that:
+ // 1) has the lowest tabindex that is higher than start's tabindex (or 0, if start is null), and
+ // 2) comes first in the document, if there's a tie.
+ if (Node* winner = nextNodeWithGreaterTabIndex(this, start ? start->tabIndex() : 0, event))
+ return winner;
+
+ // There are no nodes with a tabindex greater than start's tabindex,
+ // so find the first node with a tabindex of 0.
+ return nextNodeWithExactTabIndex(this, 0, event);
+}
+
+Node* Document::previousFocusableNode(Node* start, KeyboardEvent* event)
+{
+ Node* last;
+ for (last = this; last->lastChild(); last = last->lastChild())
+ ; // Empty loop.
+
+ // First try to find the last node in the document that comes before start and has the same tabindex as start.
+ // If start is null, find the last node in the document with a tabindex of 0.
+ Node* startingNode;
+ int startingTabIndex;
+ if (start) {
+ startingNode = start->traversePreviousNode();
+ startingTabIndex = start->tabIndex();
+ } else {
+ startingNode = last;
+ startingTabIndex = 0;
+ }
+
+ // However, if a node is excluded from the normal tabbing cycle, the previous focusable node is determined by tree order
+ if (startingTabIndex < 0) {
+ for (Node* n = startingNode; n; n = n->traversePreviousNode())
+ if (n->isKeyboardFocusable(event) && n->tabIndex() >= 0)
+ return n;
+ }
+
+ if (Node* winner = previousNodeWithExactTabIndex(startingNode, startingTabIndex, event))
+ return winner;
+
+ // There are no nodes before start with the same tabindex as start, so look for a node that:
+ // 1) has the highest non-zero tabindex (that is less than start's tabindex), and
+ // 2) comes last in the document, if there's a tie.
+ startingTabIndex = (start && start->tabIndex()) ? start->tabIndex() : SHRT_MAX;
+ return previousNodeWithLowerTabIndex(last, startingTabIndex, event);
+}
+
+int Document::nodeAbsIndex(Node *node)
+{
+ ASSERT(node->document() == this);
+
+ int absIndex = 0;
+ for (Node *n = node; n && n != this; n = n->traversePreviousNode())
+ absIndex++;
+ return absIndex;
+}
+
+Node *Document::nodeWithAbsIndex(int absIndex)
+{
+ Node *n = this;
+ for (int i = 0; n && (i < absIndex); i++) {
+ n = n->traverseNextNode();
+ }
+ return n;
+}
+
+void Document::processHttpEquiv(const String& equiv, const String& content)
+{
+ ASSERT(!equiv.isNull() && !content.isNull());
+
+ Frame* frame = this->frame();
+
+ if (equalIgnoringCase(equiv, "default-style")) {
+ // The preferred style set has been overridden as per section
+ // 14.3.2 of the HTML4.0 specification. We need to update the
+ // sheet used variable and then update our style selector.
+ // For more info, see the test at:
+ // http://www.hixie.ch/tests/evil/css/import/main/preferred.html
+ // -dwh
+ m_selectedStylesheetSet = content;
+ m_preferredStylesheetSet = content;
+ updateStyleSelector();
+ } else if (equalIgnoringCase(equiv, "refresh")) {
+ double delay;
+ String url;
+ if (frame && parseHTTPRefresh(content, true, delay, url)) {
+ if (url.isEmpty())
+ url = frame->loader()->url().string();
+ else
+ url = completeURL(url).string();
+ frame->redirectScheduler()->scheduleRedirect(delay, url);
+ }
+ } else if (equalIgnoringCase(equiv, "set-cookie")) {
+ // FIXME: make setCookie work on XML documents too; e.g. in case of <html:meta .....>
+ if (isHTMLDocument()) {
+ ExceptionCode ec; // Exception (for sandboxed documents) ignored.
+ static_cast<HTMLDocument*>(this)->setCookie(content, ec);
+ }
+ } else if (equalIgnoringCase(equiv, "content-language"))
+ setContentLanguage(content);
+ else if (equalIgnoringCase(equiv, "x-dns-prefetch-control"))
+ parseDNSPrefetchControlHeader(content);
+ else if (equalIgnoringCase(equiv, "x-frame-options")) {
+ FrameLoader* frameLoader = frame->loader();
+ if (frameLoader->shouldInterruptLoadForXFrameOptions(content, url())) {
+ frameLoader->stopAllLoaders();
+ frame->redirectScheduler()->scheduleLocationChange(blankURL(), String());
+
+ DEFINE_STATIC_LOCAL(String, consoleMessage, ("Refused to display document because display forbidden by X-Frame-Options.\n"));
+ frame->domWindow()->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, consoleMessage, 1, String());
+ }
+ }
+}
+
+// Though isspace() considers \t and \v to be whitespace, Win IE doesn't.
+static bool isSeparator(UChar c)
+{
+ return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '=' || c == ',' || c == '\0';
+}
+
+void Document::processArguments(const String& features, void* data, ArgumentsCallback callback)
+{
+ // Tread lightly in this code -- it was specifically designed to mimic Win IE's parsing behavior.
+ int keyBegin, keyEnd;
+ int valueBegin, valueEnd;
+
+ int i = 0;
+ int length = features.length();
+ String buffer = features.lower();
+ while (i < length) {
+ // skip to first non-separator, but don't skip past the end of the string
+ while (isSeparator(buffer[i])) {
+ if (i >= length)
+ break;
+ i++;
+ }
+ keyBegin = i;
+
+ // skip to first separator
+ while (!isSeparator(buffer[i]))
+ i++;
+ keyEnd = i;
+
+ // skip to first '=', but don't skip past a ',' or the end of the string
+ while (buffer[i] != '=') {
+ if (buffer[i] == ',' || i >= length)
+ break;
+ i++;
+ }
+
+ // skip to first non-separator, but don't skip past a ',' or the end of the string
+ while (isSeparator(buffer[i])) {
+ if (buffer[i] == ',' || i >= length)
+ break;
+ i++;
+ }
+ valueBegin = i;
+
+ // skip to first separator
+ while (!isSeparator(buffer[i]))
+ i++;
+ valueEnd = i;
+
+ ASSERT(i <= length);
+
+ String keyString = buffer.substring(keyBegin, keyEnd - keyBegin);
+ String valueString = buffer.substring(valueBegin, valueEnd - valueBegin);
+ callback(keyString, valueString, this, data);
+ }
+}
+
+void Document::processViewport(const String& features)
+{
+ ASSERT(!features.isNull());
+
+ Frame* frame = this->frame();
+ if (!frame)
+ return;
+
+ if (frame->page()) {
+ ViewportArguments arguments;
+ processArguments(features, (void*)&arguments, &setViewportFeature);
+
+ frame->page()->chrome()->client()->didReceiveViewportArguments(frame, arguments);
+ }
+}
+
+MouseEventWithHitTestResults Document::prepareMouseEvent(const HitTestRequest& request, const IntPoint& documentPoint, const PlatformMouseEvent& event)
+{
+ ASSERT(!renderer() || renderer()->isRenderView());
+
+ if (!renderer())
+ return MouseEventWithHitTestResults(event, HitTestResult(IntPoint()));
+
+ HitTestResult result(documentPoint);
+ renderView()->layer()->hitTest(request, result);
+
+ if (!request.readOnly())
+ updateStyleIfNeeded();
+
+ return MouseEventWithHitTestResults(event, result);
+}
+
+// DOM Section 1.1.1
+bool Document::childTypeAllowed(NodeType type)
+{
+ switch (type) {
+ case ATTRIBUTE_NODE:
+ case CDATA_SECTION_NODE:
+ case DOCUMENT_FRAGMENT_NODE:
+ case DOCUMENT_NODE:
+ case ENTITY_NODE:
+ case ENTITY_REFERENCE_NODE:
+ case NOTATION_NODE:
+ case TEXT_NODE:
+ case XPATH_NAMESPACE_NODE:
+ return false;
+ case COMMENT_NODE:
+ case PROCESSING_INSTRUCTION_NODE:
+ return true;
+ case DOCUMENT_TYPE_NODE:
+ case ELEMENT_NODE:
+ // Documents may contain no more than one of each of these.
+ // (One Element and one DocumentType.)
+ for (Node* c = firstChild(); c; c = c->nextSibling())
+ if (c->nodeType() == type)
+ return false;
+ return true;
+ }
+ return false;
+}
+
+bool Document::canReplaceChild(Node* newChild, Node* oldChild)
+{
+ if (!oldChild)
+ // ContainerNode::replaceChild will raise a NOT_FOUND_ERR.
+ return true;
+
+ if (oldChild->nodeType() == newChild->nodeType())
+ return true;
+
+ int numDoctypes = 0;
+ int numElements = 0;
+
+ // First, check how many doctypes and elements we have, not counting
+ // the child we're about to remove.
+ for (Node* c = firstChild(); c; c = c->nextSibling()) {
+ if (c == oldChild)
+ continue;
+
+ switch (c->nodeType()) {
+ case DOCUMENT_TYPE_NODE:
+ numDoctypes++;
+ break;
+ case ELEMENT_NODE:
+ numElements++;
+ break;
+ default:
+ break;
+ }
+ }
+
+ // Then, see how many doctypes and elements might be added by the new child.
+ if (newChild->nodeType() == DOCUMENT_FRAGMENT_NODE) {
+ for (Node* c = firstChild(); c; c = c->nextSibling()) {
+ switch (c->nodeType()) {
+ case ATTRIBUTE_NODE:
+ case CDATA_SECTION_NODE:
+ case DOCUMENT_FRAGMENT_NODE:
+ case DOCUMENT_NODE:
+ case ENTITY_NODE:
+ case ENTITY_REFERENCE_NODE:
+ case NOTATION_NODE:
+ case TEXT_NODE:
+ case XPATH_NAMESPACE_NODE:
+ return false;
+ case COMMENT_NODE:
+ case PROCESSING_INSTRUCTION_NODE:
+ break;
+ case DOCUMENT_TYPE_NODE:
+ numDoctypes++;
+ break;
+ case ELEMENT_NODE:
+ numElements++;
+ break;
+ }
+ }
+ } else {
+ switch (newChild->nodeType()) {
+ case ATTRIBUTE_NODE:
+ case CDATA_SECTION_NODE:
+ case DOCUMENT_FRAGMENT_NODE:
+ case DOCUMENT_NODE:
+ case ENTITY_NODE:
+ case ENTITY_REFERENCE_NODE:
+ case NOTATION_NODE:
+ case TEXT_NODE:
+ case XPATH_NAMESPACE_NODE:
+ return false;
+ case COMMENT_NODE:
+ case PROCESSING_INSTRUCTION_NODE:
+ return true;
+ case DOCUMENT_TYPE_NODE:
+ numDoctypes++;
+ break;
+ case ELEMENT_NODE:
+ numElements++;
+ break;
+ }
+ }
+
+ if (numElements > 1 || numDoctypes > 1)
+ return false;
+
+ return true;
+}
+
+PassRefPtr<Node> Document::cloneNode(bool /*deep*/)
+{
+ // Spec says cloning Document nodes is "implementation dependent"
+ // so we do not support it...
+ return 0;
+}
+
+StyleSheetList* Document::styleSheets()
+{
+ return m_styleSheets.get();
+}
+
+String Document::preferredStylesheetSet() const
+{
+ return m_preferredStylesheetSet;
+}
+
+String Document::selectedStylesheetSet() const
+{
+ return m_selectedStylesheetSet;
+}
+
+void Document::setSelectedStylesheetSet(const String& aString)
+{
+ m_selectedStylesheetSet = aString;
+ updateStyleSelector();
+ if (renderer())
+ renderer()->repaint();
+}
+
+// This method is called whenever a top-level stylesheet has finished loading.
+void Document::removePendingSheet()
+{
+ // Make sure we knew this sheet was pending, and that our count isn't out of sync.
+ ASSERT(m_pendingStylesheets > 0);
+
+ m_pendingStylesheets--;
+
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement())
+ printf("Stylesheet loaded at time %d. %d stylesheets still remain.\n", elapsedTime(), m_pendingStylesheets);
+#endif
+
+ updateStyleSelector();
+
+ ScriptableDocumentParser* parser = scriptableDocumentParser();
+ if (!m_pendingStylesheets && parser)
+ parser->executeScriptsWaitingForStylesheets();
+
+ if (!m_pendingStylesheets && m_gotoAnchorNeededAfterStylesheetsLoad && view())
+ view()->scrollToFragment(m_frame->loader()->url());
+}
+
+void Document::updateStyleSelector()
+{
+ // Don't bother updating, since we haven't loaded all our style info yet
+ // and haven't calculated the style selector for the first time.
+ if (!m_didCalculateStyleSelector && !haveStylesheetsLoaded())
+ return;
+
+ if (didLayoutWithPendingStylesheets() && m_pendingStylesheets <= 0) {
+ m_pendingSheetLayout = IgnoreLayoutWithPendingSheets;
+ if (renderer())
+ renderer()->repaint();
+ }
+
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement())
+ printf("Beginning update of style selector at time %d.\n", elapsedTime());
+#endif
+
+ recalcStyleSelector();
+ // This recalcStyle initiates a new recalc cycle. We need to bracket it to
+ // make sure animations get the correct update time
+ if (m_frame)
+ m_frame->animation()->beginAnimationUpdate();
+ recalcStyle(Force);
+ if (m_frame)
+ m_frame->animation()->endAnimationUpdate();
+
+#ifdef INSTRUMENT_LAYOUT_SCHEDULING
+ if (!ownerElement())
+ printf("Finished update of style selector at time %d\n", elapsedTime());
+#endif
+
+ if (renderer()) {
+ renderer()->setNeedsLayoutAndPrefWidthsRecalc();
+ if (view())
+ view()->scheduleRelayout();
+ }
+}
+
+void Document::addStyleSheetCandidateNode(Node* node, bool createdByParser)
+{
+ // Until the <body> exists, we have no choice but to compare document positions,
+ // since styles outside of the body and head continue to be shunted into the head
+ // (and thus can shift to end up before dynamically added DOM content that is also
+ // outside the body).
+ if ((createdByParser && body()) || m_styleSheetCandidateNodes.isEmpty()) {
+ m_styleSheetCandidateNodes.add(node);
+ return;
+ }
+
+ // Determine an appropriate insertion point.
+ StyleSheetCandidateListHashSet::iterator begin = m_styleSheetCandidateNodes.begin();
+ StyleSheetCandidateListHashSet::iterator end = m_styleSheetCandidateNodes.end();
+ StyleSheetCandidateListHashSet::iterator it = end;
+ Node* followingNode = 0;
+ do {
+ --it;
+ Node* n = *it;
+ unsigned short position = n->compareDocumentPosition(node);
+ if (position == DOCUMENT_POSITION_FOLLOWING) {
+ m_styleSheetCandidateNodes.insertBefore(followingNode, node);
+ return;
+ }
+ followingNode = n;
+ } while (it != begin);
+
+ m_styleSheetCandidateNodes.insertBefore(followingNode, node);
+}
+
+void Document::removeStyleSheetCandidateNode(Node* node)
+{
+ m_styleSheetCandidateNodes.remove(node);
+}
+
+void Document::recalcStyleSelector()
+{
+ if (!renderer() || !attached())
+ return;
+
+ StyleSheetVector sheets;
+
+ bool matchAuthorAndUserStyles = true;
+ if (Settings* settings = this->settings())
+ matchAuthorAndUserStyles = settings->authorAndUserStylesEnabled();
+
+ StyleSheetCandidateListHashSet::iterator begin = m_styleSheetCandidateNodes.begin();
+ StyleSheetCandidateListHashSet::iterator end = m_styleSheetCandidateNodes.end();
+ if (!matchAuthorAndUserStyles)
+ end = begin;
+ for (StyleSheetCandidateListHashSet::iterator it = begin; it != end; ++it) {
+ Node* n = *it;
+
+ StyleSheet* sheet = 0;
+
+ if (n->nodeType() == PROCESSING_INSTRUCTION_NODE) {
+ // Processing instruction (XML documents only)
+ ProcessingInstruction* pi = static_cast<ProcessingInstruction*>(n);
+ sheet = pi->sheet();
+#if ENABLE(XSLT)
+ // Don't apply XSL transforms to already transformed documents -- <rdar://problem/4132806>
+ if (pi->isXSL() && !transformSourceDocument()) {
+ // Don't apply XSL transforms until loading is finished.
+ if (!parsing())
+ applyXSLTransform(pi);
+ return;
+ }
+#endif
+ if (!sheet && !pi->localHref().isEmpty()) {
+ // Processing instruction with reference to an element in this document - e.g.
+ // <?xml-stylesheet href="#mystyle">, with the element
+ // <foo id="mystyle">heading { color: red; }</foo> at some location in
+ // the document
+ Element* elem = getElementById(pi->localHref().impl());
+ if (elem) {
+ String sheetText("");
+ for (Node* c = elem->firstChild(); c; c = c->nextSibling()) {
+ if (c->nodeType() == TEXT_NODE || c->nodeType() == CDATA_SECTION_NODE)
+ sheetText += c->nodeValue();
+ }
+
+ RefPtr<CSSStyleSheet> cssSheet = CSSStyleSheet::create(this);
+ cssSheet->parseString(sheetText);
+ pi->setCSSStyleSheet(cssSheet);
+ sheet = cssSheet.get();
+ }
+ }
+ } else if ((n->isHTMLElement() && (n->hasTagName(linkTag) || n->hasTagName(styleTag)))
+#if ENABLE(SVG)
+ || (n->isSVGElement() && n->hasTagName(SVGNames::styleTag))
+#endif
+ ) {
+ Element* e = static_cast<Element*>(n);
+ AtomicString title = e->getAttribute(titleAttr);
+ bool enabledViaScript = false;
+ if (e->hasLocalName(linkTag)) {
+ // <LINK> element
+ HTMLLinkElement* l = static_cast<HTMLLinkElement*>(n);
+ if (l->isDisabled())
+ continue;
+ enabledViaScript = l->isEnabledViaScript();
+ if (l->isLoading()) {
+ // it is loading but we should still decide which style sheet set to use
+ if (!enabledViaScript && !title.isEmpty() && m_preferredStylesheetSet.isEmpty()) {
+ const AtomicString& rel = e->getAttribute(relAttr);
+ if (!rel.contains("alternate")) {
+ m_preferredStylesheetSet = title;
+ m_selectedStylesheetSet = title;
+ }
+ }
+ continue;
+ }
+ if (!l->sheet())
+ title = nullAtom;
+ }
+
+ // Get the current preferred styleset. This is the
+ // set of sheets that will be enabled.
+#if ENABLE(SVG)
+ if (n->isSVGElement() && n->hasTagName(SVGNames::styleTag))
+ sheet = static_cast<SVGStyleElement*>(n)->sheet();
+ else
+#endif
+ if (e->hasLocalName(linkTag))
+ sheet = static_cast<HTMLLinkElement*>(n)->sheet();
+ else
+ // <STYLE> element
+ sheet = static_cast<HTMLStyleElement*>(n)->sheet();
+
+ // Check to see if this sheet belongs to a styleset
+ // (thus making it PREFERRED or ALTERNATE rather than
+ // PERSISTENT).
+ if (!enabledViaScript && !title.isEmpty()) {
+ // Yes, we have a title.
+ if (m_preferredStylesheetSet.isEmpty()) {
+ // No preferred set has been established. If
+ // we are NOT an alternate sheet, then establish
+ // us as the preferred set. Otherwise, just ignore
+ // this sheet.
+ AtomicString rel = e->getAttribute(relAttr);
+ if (e->hasLocalName(styleTag) || !rel.contains("alternate"))
+ m_preferredStylesheetSet = m_selectedStylesheetSet = title;
+ }
+
+ if (title != m_preferredStylesheetSet)
+ sheet = 0;
+ }
+ }
+
+ if (sheet)
+ sheets.append(sheet);
+ }
+
+ m_styleSheets->swap(sheets);
+
+ m_styleSelector.clear();
+ m_didCalculateStyleSelector = true;
+}
+
+void Document::setHoverNode(PassRefPtr<Node> newHoverNode)
+{
+ m_hoverNode = newHoverNode;
+}
+
+void Document::setActiveNode(PassRefPtr<Node> newActiveNode)
+{
+ m_activeNode = newActiveNode;
+}
+
+void Document::focusedNodeRemoved()
+{
+ setFocusedNode(0);
+}
+
+void Document::removeFocusedNodeOfSubtree(Node* node, bool amongChildrenOnly)
+{
+ if (!m_focusedNode || this->inPageCache()) // If the document is in the page cache, then we don't need to clear out the focused node.
+ return;
+
+ bool nodeInSubtree = false;
+ if (amongChildrenOnly)
+ nodeInSubtree = m_focusedNode->isDescendantOf(node);
+ else
+ nodeInSubtree = (m_focusedNode == node) || m_focusedNode->isDescendantOf(node);
+
+ if (nodeInSubtree)
+ document()->focusedNodeRemoved();
+}
+
+void Document::hoveredNodeDetached(Node* node)
+{
+ if (!m_hoverNode || (node != m_hoverNode && (!m_hoverNode->isTextNode() || node != m_hoverNode->parent())))
+ return;
+
+ m_hoverNode = node->parent();
+ while (m_hoverNode && !m_hoverNode->renderer())
+ m_hoverNode = m_hoverNode->parent();
+ if (frame())
+ frame()->eventHandler()->scheduleHoverStateUpdate();
+}
+
+void Document::activeChainNodeDetached(Node* node)
+{
+ if (!m_activeNode || (node != m_activeNode && (!m_activeNode->isTextNode() || node != m_activeNode->parent())))
+ return;
+
+ m_activeNode = node->parent();
+ while (m_activeNode && !m_activeNode->renderer())
+ m_activeNode = m_activeNode->parent();
+}
+
+#if ENABLE(DASHBOARD_SUPPORT)
+const Vector<DashboardRegionValue>& Document::dashboardRegions() const
+{
+ return m_dashboardRegions;
+}
+
+void Document::setDashboardRegions(const Vector<DashboardRegionValue>& regions)
+{
+ m_dashboardRegions = regions;
+ setDashboardRegionsDirty(false);
+}
+#endif
+
+bool Document::setFocusedNode(PassRefPtr<Node> newFocusedNode)
+{
+ // Make sure newFocusedNode is actually in this document
+ if (newFocusedNode && (newFocusedNode->document() != this))
+ return true;
+
+ if (m_focusedNode == newFocusedNode)
+ return true;
+
+ if (m_inPageCache)
+ return false;
+
+ bool focusChangeBlocked = false;
+ RefPtr<Node> oldFocusedNode = m_focusedNode;
+ m_focusedNode = 0;
+
+ // Remove focus from the existing focus node (if any)
+ if (oldFocusedNode && !oldFocusedNode->inDetach()) {
+ if (oldFocusedNode->active())
+ oldFocusedNode->setActive(false);
+
+ oldFocusedNode->setFocus(false);
+
+ // Dispatch a change event for text fields or textareas that have been edited
+ RenderObject* r = oldFocusedNode->renderer();
+ if (r && r->isTextControl() && toRenderTextControl(r)->wasChangedSinceLastChangeEvent()) {
+ static_cast<Element*>(oldFocusedNode.get())->dispatchFormControlChangeEvent();
+ r = oldFocusedNode->renderer();
+ if (r && r->isTextControl())
+ toRenderTextControl(r)->setChangedSinceLastChangeEvent(false);
+ }
+
+ // Dispatch the blur event and let the node do any other blur related activities (important for text fields)
+ oldFocusedNode->dispatchBlurEvent();
+
+ if (m_focusedNode) {
+ // handler shifted focus
+ focusChangeBlocked = true;
+ newFocusedNode = 0;
+ }
+
+ oldFocusedNode->dispatchUIEvent(eventNames().focusoutEvent, 0, 0); // DOM level 3 name for the bubbling blur event.
+
+ if (m_focusedNode) {
+ // handler shifted focus
+ focusChangeBlocked = true;
+ newFocusedNode = 0;
+ }
+ if (oldFocusedNode == this && oldFocusedNode->hasOneRef())
+ return true;
+
+ if (oldFocusedNode == oldFocusedNode->rootEditableElement())
+ frame()->editor()->didEndEditing();
+
+ if (view()) {
+ Widget* oldWidget = widgetForNode(oldFocusedNode.get());
+ if (oldWidget)
+ oldWidget->setFocus(false);
+ else
+ view()->setFocus(false);
+ }
+ }
+
+ if (newFocusedNode) {
+ if (newFocusedNode == newFocusedNode->rootEditableElement() && !acceptsEditingFocus(newFocusedNode.get())) {
+ // delegate blocks focus change
+ focusChangeBlocked = true;
+ goto SetFocusedNodeDone;
+ }
+ // Set focus on the new node
+ m_focusedNode = newFocusedNode.get();
+
+ // Dispatch the focus event and let the node do any other focus related activities (important for text fields)
+ m_focusedNode->dispatchFocusEvent();
+
+ if (m_focusedNode != newFocusedNode) {
+ // handler shifted focus
+ focusChangeBlocked = true;
+ goto SetFocusedNodeDone;
+ }
+
+ m_focusedNode->dispatchUIEvent(eventNames().focusinEvent, 0, 0); // DOM level 3 bubbling focus event.
+
+ if (m_focusedNode != newFocusedNode) {
+ // handler shifted focus
+ focusChangeBlocked = true;
+ goto SetFocusedNodeDone;
+ }
+ m_focusedNode->setFocus(true);
+
+ if (m_focusedNode == m_focusedNode->rootEditableElement())
+ frame()->editor()->didBeginEditing();
+
+ // eww, I suck. set the qt focus correctly
+ // ### find a better place in the code for this
+ if (view()) {
+ Widget *focusWidget = widgetForNode(m_focusedNode.get());
+ if (focusWidget) {
+ // Make sure a widget has the right size before giving it focus.
+ // Otherwise, we are testing edge cases of the Widget code.
+ // Specifically, in WebCore this does not work well for text fields.
+ updateLayout();
+ // Re-get the widget in case updating the layout changed things.
+ focusWidget = widgetForNode(m_focusedNode.get());
+ }
+ if (focusWidget)
+ focusWidget->setFocus(true);
+ else
+ view()->setFocus(true);
+ }
+ }
+
+#if ((PLATFORM(MAC) || PLATFORM(WIN)) && !PLATFORM(CHROMIUM)) || PLATFORM(GTK)
+ if (!focusChangeBlocked && m_focusedNode && AXObjectCache::accessibilityEnabled()) {
+ RenderObject* oldFocusedRenderer = 0;
+ RenderObject* newFocusedRenderer = 0;
+
+ if (oldFocusedNode)
+ oldFocusedRenderer = oldFocusedNode->renderer();
+ if (newFocusedNode)
+ newFocusedRenderer = newFocusedNode->renderer();
+
+ axObjectCache()->handleFocusedUIElementChanged(oldFocusedRenderer, newFocusedRenderer);
+ }
+#endif
+ if (!focusChangeBlocked)
+ page()->chrome()->focusedNodeChanged(m_focusedNode.get());
+
+SetFocusedNodeDone:
+ updateStyleIfNeeded();
+ return !focusChangeBlocked;
+}
+
+void Document::getFocusableNodes(Vector<RefPtr<Node> >& nodes)
+{
+ updateLayout();
+
+ for (Node* node = firstChild(); node; node = node->traverseNextNode()) {
+ if (node->isFocusable())
+ nodes.append(node);
+ }
+}
+
+void Document::setCSSTarget(Element* n)
+{
+ if (m_cssTarget)
+ m_cssTarget->setNeedsStyleRecalc();
+ m_cssTarget = n;
+ if (n)
+ n->setNeedsStyleRecalc();
+}
+
+void Document::attachNodeIterator(NodeIterator *ni)
+{
+ m_nodeIterators.add(ni);
+}
+
+void Document::detachNodeIterator(NodeIterator *ni)
+{
+ m_nodeIterators.remove(ni);
+}
+
+void Document::nodeChildrenChanged(ContainerNode* container)
+{
+ if (!disableRangeMutation(page())) {
+ HashSet<Range*>::const_iterator end = m_ranges.end();
+ for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
+ (*it)->nodeChildrenChanged(container);
+ }
+}
+
+void Document::nodeChildrenWillBeRemoved(ContainerNode* container)
+{
+ if (!disableRangeMutation(page())) {
+ HashSet<Range*>::const_iterator end = m_ranges.end();
+ for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
+ (*it)->nodeChildrenWillBeRemoved(container);
+ }
+
+ HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
+ for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it) {
+ for (Node* n = container->firstChild(); n; n = n->nextSibling())
+ (*it)->nodeWillBeRemoved(n);
+ }
+
+ if (Frame* frame = this->frame()) {
+ for (Node* n = container->firstChild(); n; n = n->nextSibling()) {
+ frame->selection()->nodeWillBeRemoved(n);
+ frame->dragCaretController()->nodeWillBeRemoved(n);
+ }
+ }
+}
+
+void Document::nodeWillBeRemoved(Node* n)
+{
+ HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
+ for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it)
+ (*it)->nodeWillBeRemoved(n);
+
+ if (!disableRangeMutation(page())) {
+ HashSet<Range*>::const_iterator rangesEnd = m_ranges.end();
+ for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != rangesEnd; ++it)
+ (*it)->nodeWillBeRemoved(n);
+ }
+
+ if (Frame* frame = this->frame()) {
+ frame->selection()->nodeWillBeRemoved(n);
+ frame->dragCaretController()->nodeWillBeRemoved(n);
+ }
+}
+
+void Document::textInserted(Node* text, unsigned offset, unsigned length)
+{
+ if (!disableRangeMutation(page())) {
+ HashSet<Range*>::const_iterator end = m_ranges.end();
+ for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
+ (*it)->textInserted(text, offset, length);
+ }
+
+ // Update the markers for spelling and grammar checking.
+ shiftMarkers(text, offset, length);
+}
+
+void Document::textRemoved(Node* text, unsigned offset, unsigned length)
+{
+ if (!disableRangeMutation(page())) {
+ HashSet<Range*>::const_iterator end = m_ranges.end();
+ for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
+ (*it)->textRemoved(text, offset, length);
+ }
+
+ // Update the markers for spelling and grammar checking.
+ removeMarkers(text, offset, length);
+ shiftMarkers(text, offset + length, 0 - length);
+}
+
+void Document::textNodesMerged(Text* oldNode, unsigned offset)
+{
+ if (!disableRangeMutation(page())) {
+ NodeWithIndex oldNodeWithIndex(oldNode);
+ HashSet<Range*>::const_iterator end = m_ranges.end();
+ for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
+ (*it)->textNodesMerged(oldNodeWithIndex, offset);
+ }
+
+ // FIXME: This should update markers for spelling and grammar checking.
+}
+
+void Document::textNodeSplit(Text* oldNode)
+{
+ if (!disableRangeMutation(page())) {
+ HashSet<Range*>::const_iterator end = m_ranges.end();
+ for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
+ (*it)->textNodeSplit(oldNode);
+ }
+
+ // FIXME: This should update markers for spelling and grammar checking.
+}
+
+// FIXME: eventually, this should return a DOMWindow stored in the document.
+DOMWindow* Document::domWindow() const
+{
+ if (!frame())
+ return 0;
+
+ // 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.
+ // FIXME: We should always zero out the frame pointer on navigation to avoid accidentally accessing the new frame content.
+ if (m_frame->document() != this)
+ return 0;
+
+ return frame()->domWindow();
+}
+
+void Document::setWindowAttributeEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener)
+{
+ DOMWindow* domWindow = this->domWindow();
+ if (!domWindow)
+ return;
+ domWindow->setAttributeEventListener(eventType, listener);
+}
+
+EventListener* Document::getWindowAttributeEventListener(const AtomicString& eventType)
+{
+ DOMWindow* domWindow = this->domWindow();
+ if (!domWindow)
+ return 0;
+ return domWindow->getAttributeEventListener(eventType);
+}
+
+void Document::dispatchWindowEvent(PassRefPtr<Event> event, PassRefPtr<EventTarget> target)
+{
+ ASSERT(!eventDispatchForbidden());
+ DOMWindow* domWindow = this->domWindow();
+ if (!domWindow)
+ return;
+ domWindow->dispatchEvent(event, target);
+}
+
+void Document::dispatchWindowLoadEvent()
+{
+ ASSERT(!eventDispatchForbidden());
+ DOMWindow* domWindow = this->domWindow();
+ if (!domWindow)
+ return;
+ domWindow->dispatchLoadEvent();
+}
+
+void Document::enqueueEvent(PassRefPtr<Event> event)
+{
+ m_pendingEventQueue.append(event);
+ if (!m_pendingEventTimer.isActive())
+ m_pendingEventTimer.startOneShot(0);
+}
+
+void Document::pendingEventTimerFired(Timer<Document>*)
+{
+ ASSERT(!m_pendingEventTimer.isActive());
+ Vector<RefPtr<Event> > eventQueue;
+ eventQueue.swap(m_pendingEventQueue);
+
+ typedef Vector<RefPtr<Event> >::const_iterator Iterator;
+ Iterator end = eventQueue.end();
+ for (Iterator it = eventQueue.begin(); it != end; ++it)
+ dispatchWindowEvent(*it);
+}
+
+PassRefPtr<Event> Document::createEvent(const String& eventType, ExceptionCode& ec)
+{
+ RefPtr<Event> event;
+ if (eventType == "Event" || eventType == "Events" || eventType == "HTMLEvents")
+ event = Event::create();
+ else if (eventType == "CustomEvent")
+ event = CustomEvent::create();
+ else if (eventType == "KeyboardEvent" || eventType == "KeyboardEvents")
+ event = KeyboardEvent::create();
+ else if (eventType == "MessageEvent")
+ event = MessageEvent::create();
+ else if (eventType == "MouseEvent" || eventType == "MouseEvents")
+ event = MouseEvent::create();
+ else if (eventType == "MutationEvent" || eventType == "MutationEvents")
+ event = MutationEvent::create();
+ else if (eventType == "OverflowEvent")
+ event = OverflowEvent::create();
+ else if (eventType == "PageTransitionEvent")
+ event = PageTransitionEvent::create();
+ else if (eventType == "ProgressEvent")
+ event = ProgressEvent::create();
+#if ENABLE(DOM_STORAGE)
+ else if (eventType == "StorageEvent")
+ event = StorageEvent::create();
+#endif
+ else if (eventType == "TextEvent")
+ event = TextEvent::create();
+ else if (eventType == "UIEvent" || eventType == "UIEvents")
+ event = UIEvent::create();
+ else if (eventType == "WebKitAnimationEvent")
+ event = WebKitAnimationEvent::create();
+ else if (eventType == "WebKitTransitionEvent")
+ event = WebKitTransitionEvent::create();
+ else if (eventType == "WheelEvent")
+ event = WheelEvent::create();
+#if ENABLE(SVG)
+ else if (eventType == "SVGEvents")
+ event = Event::create();
+ else if (eventType == "SVGZoomEvents")
+ event = SVGZoomEvent::create();
+#endif
+#if ENABLE(TOUCH_EVENTS)
+#if USE(V8)
+ else if (eventType == "TouchEvent" && RuntimeEnabledFeatures::touchEnabled())
+#else
+ else if (eventType == "TouchEvent")
+#endif
+ event = TouchEvent::create();
+#endif
+#if ENABLE(DEVICE_ORIENTATION)
+ else if (eventType == "DeviceOrientationEvent")
+ event = DeviceOrientationEvent::create();
+#endif
+
+#if ENABLE(TRANSFORMACTION_EVENTS)
+#if USE(V8)
+ else if (eventType == "TransformActionEvent" && RuntimeEnabledFeatures::transformactionEnabled())
+#else
+ else if (eventType == "TransformActionEvent")
+#endif
+ event = TransformActionEvent::create();
+#endif
+ if (event)
+ return event.release();
+
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+}
+
+void Document::addListenerTypeIfNeeded(const AtomicString& eventType)
+{
+ if (eventType == eventNames().DOMSubtreeModifiedEvent)
+ addListenerType(DOMSUBTREEMODIFIED_LISTENER);
+ else if (eventType == eventNames().DOMNodeInsertedEvent)
+ addListenerType(DOMNODEINSERTED_LISTENER);
+ else if (eventType == eventNames().DOMNodeRemovedEvent)
+ addListenerType(DOMNODEREMOVED_LISTENER);
+ else if (eventType == eventNames().DOMNodeRemovedFromDocumentEvent)
+ addListenerType(DOMNODEREMOVEDFROMDOCUMENT_LISTENER);
+ else if (eventType == eventNames().DOMNodeInsertedIntoDocumentEvent)
+ addListenerType(DOMNODEINSERTEDINTODOCUMENT_LISTENER);
+ else if (eventType == eventNames().DOMAttrModifiedEvent)
+ addListenerType(DOMATTRMODIFIED_LISTENER);
+ else if (eventType == eventNames().DOMCharacterDataModifiedEvent)
+ addListenerType(DOMCHARACTERDATAMODIFIED_LISTENER);
+ else if (eventType == eventNames().overflowchangedEvent)
+ addListenerType(OVERFLOWCHANGED_LISTENER);
+ else if (eventType == eventNames().webkitAnimationStartEvent)
+ addListenerType(ANIMATIONSTART_LISTENER);
+ else if (eventType == eventNames().webkitAnimationEndEvent)
+ addListenerType(ANIMATIONEND_LISTENER);
+ else if (eventType == eventNames().webkitAnimationIterationEvent)
+ addListenerType(ANIMATIONITERATION_LISTENER);
+ else if (eventType == eventNames().webkitTransitionEndEvent)
+ addListenerType(TRANSITIONEND_LISTENER);
+ else if (eventType == eventNames().beforeloadEvent)
+ addListenerType(BEFORELOAD_LISTENER);
+ else if (eventType == eventNames().beforeprocessEvent)
+ addListenerType(BEFOREPROCESS_LISTENER);
+#if ENABLE(TOUCH_EVENTS)
+ else if (eventType == eventNames().touchstartEvent
+ || eventType == eventNames().touchmoveEvent
+ || eventType == eventNames().touchendEvent
+ || eventType == eventNames().touchcancelEvent) {
+ addListenerType(TOUCH_LISTENER);
+ if (Page* page = this->page())
+ page->chrome()->client()->needTouchEvents(true);
+ }
+#endif
+#if ENABLE(TRANSFORMACTION_EVENTS)
+ else if (eventType == eventNames().transformactionstartEvent
+ || eventType == eventNames().transformactionupdateEvent
+ || eventType == eventNames().transformactionendEvent)
+ addListenerType(TRANSFORMACTION_LISTENER);
+#endif
+}
+
+CSSStyleDeclaration* Document::getOverrideStyle(Element*, const String&)
+{
+ return 0;
+}
+
+HTMLFrameOwnerElement* Document::ownerElement() const
+{
+ if (!frame())
+ return 0;
+ return frame()->ownerElement();
+}
+
+String Document::cookie(ExceptionCode& ec) const
+{
+ if (page() && !page()->cookieEnabled())
+ return String();
+
+ // FIXME: The HTML5 DOM spec states that this attribute can raise an
+ // INVALID_STATE_ERR exception on getting if the Document has no
+ // browsing context.
+
+ if (!securityOrigin()->canAccessCookies()) {
+ ec = SECURITY_ERR;
+ return String();
+ }
+
+ KURL cookieURL = this->cookieURL();
+ if (cookieURL.isEmpty())
+ return String();
+
+ return cookies(this, cookieURL);
+}
+
+void Document::setCookie(const String& value, ExceptionCode& ec)
+{
+ if (page() && !page()->cookieEnabled())
+ return;
+
+ // FIXME: The HTML5 DOM spec states that this attribute can raise an
+ // INVALID_STATE_ERR exception on setting if the Document has no
+ // browsing context.
+
+ if (!securityOrigin()->canAccessCookies()) {
+ ec = SECURITY_ERR;
+ return;
+ }
+
+ KURL cookieURL = this->cookieURL();
+ if (cookieURL.isEmpty())
+ return;
+
+ setCookies(this, cookieURL, value);
+}
+
+String Document::referrer() const
+{
+ if (frame())
+ return frame()->loader()->referrer();
+ return String();
+}
+
+String Document::domain() const
+{
+ return securityOrigin()->domain();
+}
+
+void Document::setDomain(const String& newDomain, ExceptionCode& ec)
+{
+ if (SecurityOrigin::isDomainRelaxationForbiddenForURLScheme(securityOrigin()->protocol())) {
+ ec = SECURITY_ERR;
+ return;
+ }
+
+ // Both NS and IE specify that changing the domain is only allowed when
+ // the new domain is a suffix of the old domain.
+
+ // FIXME: We should add logging indicating why a domain was not allowed.
+
+ // If the new domain is the same as the old domain, still call
+ // securityOrigin()->setDomainForDOM. This will change the
+ // security check behavior. For example, if a page loaded on port 8000
+ // assigns its current domain using document.domain, the page will
+ // allow other pages loaded on different ports in the same domain that
+ // have also assigned to access this page.
+ if (equalIgnoringCase(domain(), newDomain)) {
+ securityOrigin()->setDomainFromDOM(newDomain);
+ if (m_frame)
+ m_frame->script()->updateSecurityOrigin();
+ return;
+ }
+
+ int oldLength = domain().length();
+ int newLength = newDomain.length();
+ // e.g. newDomain = webkit.org (10) and domain() = www.webkit.org (14)
+ if (newLength >= oldLength) {
+ ec = SECURITY_ERR;
+ return;
+ }
+
+ String test = domain();
+ // Check that it's a subdomain, not e.g. "ebkit.org"
+ if (test[oldLength - newLength - 1] != '.') {
+ ec = SECURITY_ERR;
+ return;
+ }
+
+ // Now test is "webkit.org" from domain()
+ // and we check that it's the same thing as newDomain
+ test.remove(0, oldLength - newLength);
+ if (test != newDomain) {
+ ec = SECURITY_ERR;
+ return;
+ }
+
+ securityOrigin()->setDomainFromDOM(newDomain);
+ if (m_frame)
+ m_frame->script()->updateSecurityOrigin();
+}
+
+String Document::lastModified() const
+{
+ Frame* f = frame();
+ if (!f)
+ return String();
+ DocumentLoader* loader = f->loader()->documentLoader();
+ if (!loader)
+ return String();
+ return loader->response().httpHeaderField("Last-Modified");
+}
+
+static bool isValidNameNonASCII(const UChar* characters, unsigned length)
+{
+ unsigned i = 0;
+
+ UChar32 c;
+ U16_NEXT(characters, i, length, c)
+ if (!isValidNameStart(c))
+ return false;
+
+ while (i < length) {
+ U16_NEXT(characters, i, length, c)
+ if (!isValidNamePart(c))
+ return false;
+ }
+
+ return true;
+}
+
+static inline bool isValidNameASCII(const UChar* characters, unsigned length)
+{
+ UChar c = characters[0];
+ if (!(isASCIIAlpha(c) || c == ':' || c == '_'))
+ return false;
+
+ for (unsigned i = 1; i < length; ++i) {
+ c = characters[i];
+ if (!(isASCIIAlphanumeric(c) || c == ':' || c == '_' || c == '-' || c == '.'))
+ return false;
+ }
+
+ return true;
+}
+
+bool Document::isValidName(const String& name)
+{
+ unsigned length = name.length();
+ if (!length)
+ return false;
+
+ const UChar* characters = name.characters();
+ return isValidNameASCII(characters, length) || isValidNameNonASCII(characters, length);
+}
+
+bool Document::parseQualifiedName(const String& qualifiedName, String& prefix, String& localName, ExceptionCode& ec)
+{
+ unsigned length = qualifiedName.length();
+
+ if (length == 0) {
+ ec = INVALID_CHARACTER_ERR;
+ return false;
+ }
+
+ bool nameStart = true;
+ bool sawColon = false;
+ int colonPos = 0;
+
+ const UChar* s = qualifiedName.characters();
+ for (unsigned i = 0; i < length;) {
+ UChar32 c;
+ U16_NEXT(s, i, length, c)
+ if (c == ':') {
+ if (sawColon) {
+ ec = NAMESPACE_ERR;
+ return false; // multiple colons: not allowed
+ }
+ nameStart = true;
+ sawColon = true;
+ colonPos = i - 1;
+ } else if (nameStart) {
+ if (!isValidNameStart(c)) {
+ ec = INVALID_CHARACTER_ERR;
+ return false;
+ }
+ nameStart = false;
+ } else {
+ if (!isValidNamePart(c)) {
+ ec = INVALID_CHARACTER_ERR;
+ return false;
+ }
+ }
+ }
+
+ if (!sawColon) {
+ prefix = String();
+ localName = qualifiedName;
+ } else {
+ prefix = qualifiedName.substring(0, colonPos);
+ if (prefix.isEmpty()) {
+ ec = NAMESPACE_ERR;
+ return false;
+ }
+ localName = qualifiedName.substring(colonPos + 1);
+ }
+
+ if (localName.isEmpty()) {
+ ec = NAMESPACE_ERR;
+ return false;
+ }
+
+ return true;
+}
+
+void Document::addImageMap(HTMLMapElement* imageMap)
+{
+ const AtomicString& name = imageMap->getName();
+ if (!name.impl())
+ return;
+
+ // Add the image map, unless there's already another with that name.
+ // "First map wins" is the rule other browsers seem to implement.
+ m_imageMapsByName.add(name.impl(), imageMap);
+}
+
+void Document::removeImageMap(HTMLMapElement* imageMap)
+{
+ // Remove the image map by name.
+ // But don't remove some other image map that just happens to have the same name.
+ // FIXME: Use a HashCountedSet as we do for IDs to find the first remaining map
+ // once a map has been removed.
+ const AtomicString& name = imageMap->getName();
+ if (!name.impl())
+ return;
+
+ m_imageMapsByName.checkConsistency();
+
+ ImageMapsByName::iterator it = m_imageMapsByName.find(name.impl());
+ if (it != m_imageMapsByName.end() && it->second == imageMap)
+ m_imageMapsByName.remove(it);
+}
+
+HTMLMapElement *Document::getImageMap(const String& url) const
+{
+ if (url.isNull())
+ return 0;
+ int hashPos = url.find('#');
+ String name = (hashPos < 0 ? url : url.substring(hashPos + 1)).impl();
+ AtomicString mapName = isHTMLDocument() ? name.lower() : name;
+ m_imageMapsByName.checkConsistency();
+ return m_imageMapsByName.get(mapName.impl());
+}
+
+void Document::setDecoder(PassRefPtr<TextResourceDecoder> decoder)
+{
+ m_decoder = decoder;
+}
+
+KURL Document::completeURL(const String& url) const
+{
+ // Always return a null URL when passed a null string.
+ // FIXME: Should we change the KURL constructor to have this behavior?
+ // See also [CSS]StyleSheet::completeURL(const String&)
+ if (url.isNull())
+ return KURL();
+ const KURL& baseURL = ((m_baseURL.isEmpty() || m_baseURL == blankURL()) && parentDocument()) ? parentDocument()->baseURL() : m_baseURL;
+ if (!m_decoder)
+ return KURL(baseURL, url);
+ return KURL(baseURL, url, m_decoder->encoding());
+}
+
+void Document::setInPageCache(bool flag)
+{
+ if (m_inPageCache == flag)
+ return;
+
+ m_inPageCache = flag;
+ if (flag) {
+ ASSERT(m_savedRenderer == 0);
+ m_savedRenderer = renderer();
+ if (FrameView* v = view())
+ v->resetScrollbars();
+ unscheduleStyleRecalc();
+ } else {
+ ASSERT(renderer() == 0 || renderer() == m_savedRenderer);
+ ASSERT(m_renderArena);
+ setRenderer(m_savedRenderer);
+ m_savedRenderer = 0;
+ if (childNeedsStyleRecalc())
+ scheduleStyleRecalc();
+ }
+}
+
+void Document::documentWillBecomeInactive()
+{
+#if USE(ACCELERATED_COMPOSITING)
+ if (renderer())
+ renderView()->willMoveOffscreen();
+#endif
+
+ HashSet<Element*>::iterator end = m_documentActivationCallbackElements.end();
+ for (HashSet<Element*>::iterator i = m_documentActivationCallbackElements.begin(); i != end; ++i)
+ (*i)->documentWillBecomeInactive();
+}
+
+void Document::documentDidBecomeActive()
+{
+ HashSet<Element*>::iterator end = m_documentActivationCallbackElements.end();
+ for (HashSet<Element*>::iterator i = m_documentActivationCallbackElements.begin(); i != end; ++i)
+ (*i)->documentDidBecomeActive();
+
+#if USE(ACCELERATED_COMPOSITING)
+ if (renderer())
+ renderView()->didMoveOnscreen();
+#endif
+}
+
+void Document::registerForDocumentActivationCallbacks(Element* e)
+{
+ m_documentActivationCallbackElements.add(e);
+}
+
+void Document::unregisterForDocumentActivationCallbacks(Element* e)
+{
+ m_documentActivationCallbackElements.remove(e);
+}
+
+void Document::mediaVolumeDidChange()
+{
+ HashSet<Element*>::iterator end = m_mediaVolumeCallbackElements.end();
+ for (HashSet<Element*>::iterator i = m_mediaVolumeCallbackElements.begin(); i != end; ++i)
+ (*i)->mediaVolumeDidChange();
+}
+
+void Document::registerForMediaVolumeCallbacks(Element* e)
+{
+ m_mediaVolumeCallbackElements.add(e);
+}
+
+void Document::unregisterForMediaVolumeCallbacks(Element* e)
+{
+ m_mediaVolumeCallbackElements.remove(e);
+}
+
+void Document::setShouldCreateRenderers(bool f)
+{
+ m_createRenderers = f;
+}
+
+bool Document::shouldCreateRenderers()
+{
+ return m_createRenderers;
+}
+
+// Support for Javascript execCommand, and related methods
+
+static Editor::Command command(Document* document, const String& commandName, bool userInterface = false)
+{
+ Frame* frame = document->frame();
+ if (!frame || frame->document() != document)
+ return Editor::Command();
+ return frame->editor()->command(commandName,
+ userInterface ? CommandFromDOMWithUserInterface : CommandFromDOM);
+}
+
+bool Document::execCommand(const String& commandName, bool userInterface, const String& value)
+{
+ return command(this, commandName, userInterface).execute(value);
+}
+
+bool Document::queryCommandEnabled(const String& commandName)
+{
+ return command(this, commandName).isEnabled();
+}
+
+bool Document::queryCommandIndeterm(const String& commandName)
+{
+ return command(this, commandName).state() == MixedTriState;
+}
+
+bool Document::queryCommandState(const String& commandName)
+{
+ return command(this, commandName).state() != FalseTriState;
+}
+
+bool Document::queryCommandSupported(const String& commandName)
+{
+ return command(this, commandName).isSupported();
+}
+
+String Document::queryCommandValue(const String& commandName)
+{
+ return command(this, commandName).value();
+}
+
+static IntRect placeholderRectForMarker()
+{
+ return IntRect(-1, -1, -1, -1);
+}
+
+void Document::addMarker(Range *range, DocumentMarker::MarkerType type, String description)
+{
+ // Use a TextIterator to visit the potentially multiple nodes the range covers.
+ for (TextIterator markedText(range); !markedText.atEnd(); markedText.advance()) {
+ RefPtr<Range> textPiece = markedText.range();
+ int exception = 0;
+ DocumentMarker marker = {type, textPiece->startOffset(exception), textPiece->endOffset(exception), description, false};
+ addMarker(textPiece->startContainer(exception), marker);
+ }
+}
+
+void Document::removeMarkers(Range* range, DocumentMarker::MarkerType markerType)
+{
+ if (m_markers.isEmpty())
+ return;
+
+ ExceptionCode ec = 0;
+ Node* startContainer = range->startContainer(ec);
+ Node* endContainer = range->endContainer(ec);
+
+ Node* pastLastNode = range->pastLastNode();
+ for (Node* node = range->firstNode(); node != pastLastNode; node = node->traverseNextNode()) {
+ int startOffset = node == startContainer ? range->startOffset(ec) : 0;
+ int endOffset = node == endContainer ? range->endOffset(ec) : INT_MAX;
+ int length = endOffset - startOffset;
+ removeMarkers(node, startOffset, length, markerType);
+ }
+}
+
+// Markers are stored in order sorted by their start offset.
+// Markers of the same type do not overlap each other.
+
+void Document::addMarker(Node* node, DocumentMarker newMarker)
+{
+ ASSERT(newMarker.endOffset >= newMarker.startOffset);
+ if (newMarker.endOffset == newMarker.startOffset)
+ return;
+
+ MarkerMapVectorPair* vectorPair = m_markers.get(node);
+
+ if (!vectorPair) {
+ vectorPair = new MarkerMapVectorPair;
+ vectorPair->first.append(newMarker);
+ vectorPair->second.append(placeholderRectForMarker());
+ m_markers.set(node, vectorPair);
+ } else {
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ Vector<IntRect>& rects = vectorPair->second;
+ size_t numMarkers = markers.size();
+ ASSERT(numMarkers == rects.size());
+ size_t i;
+ // Iterate over all markers whose start offset is less than or equal to the new marker's.
+ // If one of them is of the same type as the new marker and touches it or intersects with it
+ // (there is at most one), remove it and adjust the new marker's start offset to encompass it.
+ for (i = 0; i < numMarkers; ++i) {
+ DocumentMarker marker = markers[i];
+ if (marker.startOffset > newMarker.startOffset)
+ break;
+ if (marker.type == newMarker.type && marker.endOffset >= newMarker.startOffset) {
+ newMarker.startOffset = marker.startOffset;
+ markers.remove(i);
+ rects.remove(i);
+ numMarkers--;
+ break;
+ }
+ }
+ size_t j = i;
+ // Iterate over all markers whose end offset is less than or equal to the new marker's,
+ // removing markers of the same type as the new marker which touch it or intersect with it,
+ // adjusting the new marker's end offset to cover them if necessary.
+ while (j < numMarkers) {
+ DocumentMarker marker = markers[j];
+ if (marker.startOffset > newMarker.endOffset)
+ break;
+ if (marker.type == newMarker.type) {
+ markers.remove(j);
+ rects.remove(j);
+ if (newMarker.endOffset <= marker.endOffset) {
+ newMarker.endOffset = marker.endOffset;
+ break;
+ }
+ numMarkers--;
+ } else
+ j++;
+ }
+ // At this point i points to the node before which we want to insert.
+ markers.insert(i, newMarker);
+ rects.insert(i, placeholderRectForMarker());
+ }
+
+ // repaint the affected node
+ if (node->renderer())
+ node->renderer()->repaint();
+}
+
+// copies markers from srcNode to dstNode, applying the specified shift delta to the copies. The shift is
+// useful if, e.g., the caller has created the dstNode from a non-prefix substring of the srcNode.
+void Document::copyMarkers(Node *srcNode, unsigned startOffset, int length, Node *dstNode, int delta, DocumentMarker::MarkerType markerType)
+{
+ if (length <= 0)
+ return;
+
+ MarkerMapVectorPair* vectorPair = m_markers.get(srcNode);
+ if (!vectorPair)
+ return;
+
+ ASSERT(vectorPair->first.size() == vectorPair->second.size());
+
+ bool docDirty = false;
+ unsigned endOffset = startOffset + length - 1;
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ for (size_t i = 0; i != markers.size(); ++i) {
+ DocumentMarker marker = markers[i];
+
+ // stop if we are now past the specified range
+ if (marker.startOffset > endOffset)
+ break;
+
+ // skip marker that is before the specified range or is the wrong type
+ if (marker.endOffset < startOffset || (marker.type != markerType && markerType != DocumentMarker::AllMarkers))
+ continue;
+
+ // pin the marker to the specified range and apply the shift delta
+ docDirty = true;
+ if (marker.startOffset < startOffset)
+ marker.startOffset = startOffset;
+ if (marker.endOffset > endOffset)
+ marker.endOffset = endOffset;
+ marker.startOffset += delta;
+ marker.endOffset += delta;
+
+ addMarker(dstNode, marker);
+ }
+
+ // repaint the affected node
+ if (docDirty && dstNode->renderer())
+ dstNode->renderer()->repaint();
+}
+
+void Document::removeMarkers(Node* node, unsigned startOffset, int length, DocumentMarker::MarkerType markerType)
+{
+ if (length <= 0)
+ return;
+
+ MarkerMapVectorPair* vectorPair = m_markers.get(node);
+ if (!vectorPair)
+ return;
+
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ Vector<IntRect>& rects = vectorPair->second;
+ ASSERT(markers.size() == rects.size());
+ bool docDirty = false;
+ unsigned endOffset = startOffset + length;
+ for (size_t i = 0; i < markers.size();) {
+ DocumentMarker marker = markers[i];
+
+ // markers are returned in order, so stop if we are now past the specified range
+ if (marker.startOffset >= endOffset)
+ break;
+
+ // skip marker that is wrong type or before target
+ if (marker.endOffset < startOffset || (marker.type != markerType && markerType != DocumentMarker::AllMarkers)) {
+ i++;
+ continue;
+ }
+
+ // at this point we know that marker and target intersect in some way
+ docDirty = true;
+
+ // pitch the old marker and any associated rect
+ markers.remove(i);
+ rects.remove(i);
+
+ // add either of the resulting slices that are left after removing target
+ if (startOffset > marker.startOffset) {
+ DocumentMarker newLeft = marker;
+ newLeft.endOffset = startOffset;
+ markers.insert(i, newLeft);
+ rects.insert(i, placeholderRectForMarker());
+ // i now points to the newly-inserted node, but we want to skip that one
+ i++;
+ }
+ if (marker.endOffset > endOffset) {
+ DocumentMarker newRight = marker;
+ newRight.startOffset = endOffset;
+ markers.insert(i, newRight);
+ rects.insert(i, placeholderRectForMarker());
+ // i now points to the newly-inserted node, but we want to skip that one
+ i++;
+ }
+ }
+
+ if (markers.isEmpty()) {
+ ASSERT(rects.isEmpty());
+ m_markers.remove(node);
+ delete vectorPair;
+ }
+
+ // repaint the affected node
+ if (docDirty && node->renderer())
+ node->renderer()->repaint();
+}
+
+DocumentMarker* Document::markerContainingPoint(const IntPoint& point, DocumentMarker::MarkerType markerType)
+{
+ // outer loop: process each node that contains any markers
+ MarkerMap::iterator end = m_markers.end();
+ for (MarkerMap::iterator nodeIterator = m_markers.begin(); nodeIterator != end; ++nodeIterator) {
+ // inner loop; process each marker in this node
+ MarkerMapVectorPair* vectorPair = nodeIterator->second;
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ Vector<IntRect>& rects = vectorPair->second;
+ ASSERT(markers.size() == rects.size());
+ unsigned markerCount = markers.size();
+ for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
+ DocumentMarker& marker = markers[markerIndex];
+
+ // skip marker that is wrong type
+ if (marker.type != markerType && markerType != DocumentMarker::AllMarkers)
+ continue;
+
+ IntRect& r = rects[markerIndex];
+
+ // skip placeholder rects
+ if (r == placeholderRectForMarker())
+ continue;
+
+ if (r.contains(point))
+ return ▮
+ }
+ }
+
+ return 0;
+}
+
+Vector<DocumentMarker> Document::markersForNode(Node* node)
+{
+ MarkerMapVectorPair* vectorPair = m_markers.get(node);
+ if (vectorPair)
+ return vectorPair->first;
+ return Vector<DocumentMarker>();
+}
+
+Vector<IntRect> Document::renderedRectsForMarkers(DocumentMarker::MarkerType markerType)
+{
+ Vector<IntRect> result;
+
+ // outer loop: process each node
+ MarkerMap::iterator end = m_markers.end();
+ for (MarkerMap::iterator nodeIterator = m_markers.begin(); nodeIterator != end; ++nodeIterator) {
+ // inner loop; process each marker in this node
+ MarkerMapVectorPair* vectorPair = nodeIterator->second;
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ Vector<IntRect>& rects = vectorPair->second;
+ ASSERT(markers.size() == rects.size());
+ unsigned markerCount = markers.size();
+ for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
+ DocumentMarker marker = markers[markerIndex];
+
+ // skip marker that is wrong type
+ if (marker.type != markerType && markerType != DocumentMarker::AllMarkers)
+ continue;
+
+ IntRect r = rects[markerIndex];
+ // skip placeholder rects
+ if (r == placeholderRectForMarker())
+ continue;
+
+ result.append(r);
+ }
+ }
+
+ return result;
+}
+
+void Document::removeMarkers(Node* node)
+{
+ MarkerMap::iterator i = m_markers.find(node);
+ if (i != m_markers.end()) {
+ delete i->second;
+ m_markers.remove(i);
+ if (RenderObject* renderer = node->renderer())
+ renderer->repaint();
+ }
+}
+
+void Document::removeMarkers(DocumentMarker::MarkerType markerType)
+{
+ // outer loop: process each markered node in the document
+ MarkerMap markerMapCopy = m_markers;
+ MarkerMap::iterator end = markerMapCopy.end();
+ for (MarkerMap::iterator i = markerMapCopy.begin(); i != end; ++i) {
+ Node* node = i->first.get();
+ bool nodeNeedsRepaint = false;
+
+ // inner loop: process each marker in the current node
+ MarkerMapVectorPair* vectorPair = i->second;
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ Vector<IntRect>& rects = vectorPair->second;
+ ASSERT(markers.size() == rects.size());
+ for (size_t i = 0; i != markers.size();) {
+ DocumentMarker marker = markers[i];
+
+ // skip nodes that are not of the specified type
+ if (marker.type != markerType && markerType != DocumentMarker::AllMarkers) {
+ ++i;
+ continue;
+ }
+
+ // pitch the old marker
+ markers.remove(i);
+ rects.remove(i);
+ nodeNeedsRepaint = true;
+ // markerIterator now points to the next node
+ }
+
+ // Redraw the node if it changed. Do this before the node is removed from m_markers, since
+ // m_markers might contain the last reference to the node.
+ if (nodeNeedsRepaint) {
+ RenderObject* renderer = node->renderer();
+ if (renderer)
+ renderer->repaint();
+ }
+
+ // delete the node's list if it is now empty
+ if (markers.isEmpty()) {
+ ASSERT(rects.isEmpty());
+ m_markers.remove(node);
+ delete vectorPair;
+ }
+ }
+}
+
+void Document::repaintMarkers(DocumentMarker::MarkerType markerType)
+{
+ // outer loop: process each markered node in the document
+ MarkerMap::iterator end = m_markers.end();
+ for (MarkerMap::iterator i = m_markers.begin(); i != end; ++i) {
+ Node* node = i->first.get();
+
+ // inner loop: process each marker in the current node
+ MarkerMapVectorPair* vectorPair = i->second;
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ bool nodeNeedsRepaint = false;
+ for (size_t i = 0; i != markers.size(); ++i) {
+ DocumentMarker marker = markers[i];
+
+ // skip nodes that are not of the specified type
+ if (marker.type == markerType || markerType == DocumentMarker::AllMarkers) {
+ nodeNeedsRepaint = true;
+ break;
+ }
+ }
+
+ if (!nodeNeedsRepaint)
+ continue;
+
+ // cause the node to be redrawn
+ if (RenderObject* renderer = node->renderer())
+ renderer->repaint();
+ }
+}
+
+void Document::setRenderedRectForMarker(Node* node, const DocumentMarker& marker, const IntRect& r)
+{
+ MarkerMapVectorPair* vectorPair = m_markers.get(node);
+ if (!vectorPair) {
+ ASSERT_NOT_REACHED(); // shouldn't be trying to set the rect for a marker we don't already know about
+ return;
+ }
+
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ ASSERT(markers.size() == vectorPair->second.size());
+ unsigned markerCount = markers.size();
+ for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
+ DocumentMarker m = markers[markerIndex];
+ if (m == marker) {
+ vectorPair->second[markerIndex] = r;
+ return;
+ }
+ }
+
+ ASSERT_NOT_REACHED(); // shouldn't be trying to set the rect for a marker we don't already know about
+}
+
+void Document::invalidateRenderedRectsForMarkersInRect(const IntRect& r)
+{
+ // outer loop: process each markered node in the document
+ MarkerMap::iterator end = m_markers.end();
+ for (MarkerMap::iterator i = m_markers.begin(); i != end; ++i) {
+
+ // inner loop: process each rect in the current node
+ MarkerMapVectorPair* vectorPair = i->second;
+ Vector<IntRect>& rects = vectorPair->second;
+
+ unsigned rectCount = rects.size();
+ for (unsigned rectIndex = 0; rectIndex < rectCount; ++rectIndex)
+ if (rects[rectIndex].intersects(r))
+ rects[rectIndex] = placeholderRectForMarker();
+ }
+}
+
+void Document::shiftMarkers(Node *node, unsigned startOffset, int delta, DocumentMarker::MarkerType markerType)
+{
+ MarkerMapVectorPair* vectorPair = m_markers.get(node);
+ if (!vectorPair)
+ return;
+
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ Vector<IntRect>& rects = vectorPair->second;
+ ASSERT(markers.size() == rects.size());
+
+ bool docDirty = false;
+ for (size_t i = 0; i != markers.size(); ++i) {
+ DocumentMarker &marker = markers[i];
+ if (marker.startOffset >= startOffset && (markerType == DocumentMarker::AllMarkers || marker.type == markerType)) {
+ ASSERT((int)marker.startOffset + delta >= 0);
+ marker.startOffset += delta;
+ marker.endOffset += delta;
+ docDirty = true;
+
+ // Marker moved, so previously-computed rendered rectangle is now invalid
+ rects[i] = placeholderRectForMarker();
+ }
+ }
+
+ // repaint the affected node
+ if (docDirty && node->renderer())
+ node->renderer()->repaint();
+}
+
+void Document::setMarkersActive(Range* range, bool active)
+{
+ if (m_markers.isEmpty())
+ return;
+
+ ExceptionCode ec = 0;
+ Node* startContainer = range->startContainer(ec);
+ Node* endContainer = range->endContainer(ec);
+
+ Node* pastLastNode = range->pastLastNode();
+ for (Node* node = range->firstNode(); node != pastLastNode; node = node->traverseNextNode()) {
+ int startOffset = node == startContainer ? range->startOffset(ec) : 0;
+ int endOffset = node == endContainer ? range->endOffset(ec) : INT_MAX;
+ setMarkersActive(node, startOffset, endOffset, active);
+ }
+}
+
+void Document::setMarkersActive(Node* node, unsigned startOffset, unsigned endOffset, bool active)
+{
+ MarkerMapVectorPair* vectorPair = m_markers.get(node);
+ if (!vectorPair)
+ return;
+
+ Vector<DocumentMarker>& markers = vectorPair->first;
+ ASSERT(markers.size() == vectorPair->second.size());
+
+ bool docDirty = false;
+ for (size_t i = 0; i != markers.size(); ++i) {
+ DocumentMarker &marker = markers[i];
+
+ // Markers are returned in order, so stop if we are now past the specified range.
+ if (marker.startOffset >= endOffset)
+ break;
+
+ // Skip marker that is wrong type or before target.
+ if (marker.endOffset < startOffset || marker.type != DocumentMarker::TextMatch)
+ continue;
+
+ marker.activeMatch = active;
+ docDirty = true;
+ }
+
+ // repaint the affected node
+ if (docDirty && node->renderer())
+ node->renderer()->repaint();
+}
+
+#if ENABLE(XSLT)
+
+void Document::applyXSLTransform(ProcessingInstruction* pi)
+{
+ RefPtr<XSLTProcessor> processor = XSLTProcessor::create();
+ processor->setXSLStyleSheet(static_cast<XSLStyleSheet*>(pi->sheet()));
+ String resultMIMEType;
+ String newSource;
+ String resultEncoding;
+ if (!processor->transformToString(this, resultMIMEType, newSource, resultEncoding))
+ return;
+ // FIXME: If the transform failed we should probably report an error (like Mozilla does).
+ processor->createDocumentFromSource(newSource, resultEncoding, resultMIMEType, this, frame());
+}
+
+void Document::setTransformSource(PassOwnPtr<TransformSource> source)
+{
+ if (m_transformSource == source)
+ return;
+ m_transformSource = source;
+}
+
+#endif
+
+void Document::setDesignMode(InheritedBool value)
+{
+ m_designMode = value;
+}
+
+Document::InheritedBool Document::getDesignMode() const
+{
+ return m_designMode;
+}
+
+bool Document::inDesignMode() const
+{
+ for (const Document* d = this; d; d = d->parentDocument()) {
+ if (d->m_designMode != inherit)
+ return d->m_designMode;
+ }
+ return false;
+}
+
+Document *Document::parentDocument() const
+{
+ Frame *childPart = frame();
+ if (!childPart)
+ return 0;
+ Frame *parent = childPart->tree()->parent();
+ if (!parent)
+ return 0;
+ return parent->document();
+}
+
+Document *Document::topDocument() const
+{
+ Document *doc = const_cast<Document *>(this);
+ Element *element;
+ while ((element = doc->ownerElement()))
+ doc = element->document();
+
+ return doc;
+}
+
+PassRefPtr<Attr> Document::createAttribute(const String& name, ExceptionCode& ec)
+{
+ return createAttributeNS(String(), name, ec, true);
+}
+
+PassRefPtr<Attr> Document::createAttributeNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode& ec, bool shouldIgnoreNamespaceChecks)
+{
+ String prefix, localName;
+ if (!parseQualifiedName(qualifiedName, prefix, localName, ec))
+ return 0;
+
+ QualifiedName qName(prefix, localName, namespaceURI);
+ if (!shouldIgnoreNamespaceChecks && hasPrefixNamespaceMismatch(qName)) {
+ ec = NAMESPACE_ERR;
+ return 0;
+ }
+
+ // Spec: DOM Level 2 Core: http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrAttrNS
+ if (!shouldIgnoreNamespaceChecks && qName.localName() == xmlnsAtom && qName.namespaceURI() != XMLNSNames::xmlnsNamespaceURI) {
+ ec = NAMESPACE_ERR;
+ return 0;
+ }
+
+ // FIXME: Assume this is a mapped attribute, since createAttribute isn't namespace-aware. There's no harm to XML
+ // documents if we're wrong.
+ return Attr::create(0, this, Attribute::createMapped(qName, StringImpl::empty()));
+}
+
+#if ENABLE(SVG)
+const SVGDocumentExtensions* Document::svgExtensions()
+{
+ return m_svgExtensions.get();
+}
+
+SVGDocumentExtensions* Document::accessSVGExtensions()
+{
+ if (!m_svgExtensions)
+ m_svgExtensions.set(new SVGDocumentExtensions(this));
+ return m_svgExtensions.get();
+}
+#endif
+
+PassRefPtr<HTMLCollection> Document::images()
+{
+ return HTMLCollection::create(this, DocImages);
+}
+
+PassRefPtr<HTMLCollection> Document::applets()
+{
+ return HTMLCollection::create(this, DocApplets);
+}
+
+PassRefPtr<HTMLCollection> Document::embeds()
+{
+ return HTMLCollection::create(this, DocEmbeds);
+}
+
+PassRefPtr<HTMLCollection> Document::plugins()
+{
+ // This is an alias for embeds() required for the JS DOM bindings.
+ return HTMLCollection::create(this, DocEmbeds);
+}
+
+PassRefPtr<HTMLCollection> Document::objects()
+{
+ return HTMLCollection::create(this, DocObjects);
+}
+
+PassRefPtr<HTMLCollection> Document::scripts()
+{
+ return HTMLCollection::create(this, DocScripts);
+}
+
+PassRefPtr<HTMLCollection> Document::links()
+{
+ return HTMLCollection::create(this, DocLinks);
+}
+
+PassRefPtr<HTMLCollection> Document::forms()
+{
+ return HTMLCollection::create(this, DocForms);
+}
+
+PassRefPtr<HTMLCollection> Document::anchors()
+{
+ return HTMLCollection::create(this, DocAnchors);
+}
+
+PassRefPtr<HTMLAllCollection> Document::all()
+{
+ return HTMLAllCollection::create(this);
+}
+
+PassRefPtr<HTMLCollection> Document::windowNamedItems(const String &name)
+{
+ return HTMLNameCollection::create(this, WindowNamedItems, name);
+}
+
+PassRefPtr<HTMLCollection> Document::documentNamedItems(const String &name)
+{
+ return HTMLNameCollection::create(this, DocumentNamedItems, name);
+}
+
+CollectionCache* Document::nameCollectionInfo(CollectionType type, const AtomicString& name)
+{
+ ASSERT(type >= FirstNamedDocumentCachedType);
+ unsigned index = type - FirstNamedDocumentCachedType;
+ ASSERT(index < NumNamedDocumentCachedTypes);
+
+ NamedCollectionMap& map = m_nameCollectionInfo[index];
+ NamedCollectionMap::iterator iter = map.find(name.impl());
+ if (iter == map.end())
+ iter = map.add(name.impl(), new CollectionCache).first;
+ iter->second->checkConsistency();
+ return iter->second;
+}
+
+void Document::finishedParsing()
+{
+ setParsing(false);
+ dispatchEvent(Event::create(eventNames().DOMContentLoadedEvent, true, false));
+
+ if (Frame* f = frame()) {
+ // FrameLoader::finishedParsing() might end up calling Document::implicitClose() if all
+ // resource loads are complete. HTMLObjectElements can start loading their resources from
+ // post attach callbacks triggered by recalcStyle(). This means if we parse out an <object>
+ // tag and then reach the end of the document without updating styles, we might not have yet
+ // started the resource load and might fire the window load event too early. To avoid this
+ // we force the styles to be up to date before calling FrameLoader::finishedParsing().
+ // See https://bugs.webkit.org/show_bug.cgi?id=36864 starting around comment 35.
+ updateStyleIfNeeded();
+
+ f->loader()->finishedParsing();
+
+#if ENABLE(INSPECTOR)
+ if (!page())
+ return;
+
+ if (InspectorController* controller = page()->inspectorController())
+ controller->mainResourceFiredDOMContentEvent(f->loader()->documentLoader(), url());
+#endif
+ }
+}
+
+Vector<String> Document::formElementsState() const
+{
+ Vector<String> stateVector;
+ stateVector.reserveInitialCapacity(m_formElementsWithState.size() * 3);
+ typedef FormElementListHashSet::const_iterator Iterator;
+ Iterator end = m_formElementsWithState.end();
+ for (Iterator it = m_formElementsWithState.begin(); it != end; ++it) {
+ Element* elementWithState = *it;
+ String value;
+ if (!elementWithState->shouldSaveAndRestoreFormControlState())
+ continue;
+ if (!elementWithState->saveFormControlState(value))
+ continue;
+ stateVector.append(elementWithState->formControlName().string());
+ stateVector.append(elementWithState->formControlType().string());
+ stateVector.append(value);
+ }
+ return stateVector;
+}
+
+#if ENABLE(XPATH)
+
+PassRefPtr<XPathExpression> Document::createExpression(const String& expression,
+ XPathNSResolver* resolver,
+ ExceptionCode& ec)
+{
+ if (!m_xpathEvaluator)
+ m_xpathEvaluator = XPathEvaluator::create();
+ return m_xpathEvaluator->createExpression(expression, resolver, ec);
+}
+
+PassRefPtr<XPathNSResolver> Document::createNSResolver(Node* nodeResolver)
+{
+ if (!m_xpathEvaluator)
+ m_xpathEvaluator = XPathEvaluator::create();
+ return m_xpathEvaluator->createNSResolver(nodeResolver);
+}
+
+PassRefPtr<XPathResult> Document::evaluate(const String& expression,
+ Node* contextNode,
+ XPathNSResolver* resolver,
+ unsigned short type,
+ XPathResult* result,
+ ExceptionCode& ec)
+{
+ if (!m_xpathEvaluator)
+ m_xpathEvaluator = XPathEvaluator::create();
+ return m_xpathEvaluator->evaluate(expression, contextNode, resolver, type, result, ec);
+}
+
+#endif // ENABLE(XPATH)
+
+void Document::setStateForNewFormElements(const Vector<String>& stateVector)
+{
+ // Walk the state vector backwards so that the value to use for each
+ // name/type pair first is the one at the end of each individual vector
+ // in the FormElementStateMap. We're using them like stacks.
+ typedef FormElementStateMap::iterator Iterator;
+ m_formElementsWithState.clear();
+ for (size_t i = stateVector.size() / 3 * 3; i; i -= 3) {
+ AtomicString a = stateVector[i - 3];
+ AtomicString b = stateVector[i - 2];
+ const String& c = stateVector[i - 1];
+ FormElementKey key(a.impl(), b.impl());
+ Iterator it = m_stateForNewFormElements.find(key);
+ if (it != m_stateForNewFormElements.end())
+ it->second.append(c);
+ else {
+ Vector<String> v(1);
+ v[0] = c;
+ m_stateForNewFormElements.set(key, v);
+ }
+ }
+}
+
+bool Document::hasStateForNewFormElements() const
+{
+ return !m_stateForNewFormElements.isEmpty();
+}
+
+bool Document::takeStateForFormElement(AtomicStringImpl* name, AtomicStringImpl* type, String& state)
+{
+ typedef FormElementStateMap::iterator Iterator;
+ Iterator it = m_stateForNewFormElements.find(FormElementKey(name, type));
+ if (it == m_stateForNewFormElements.end())
+ return false;
+ ASSERT(it->second.size());
+ state = it->second.last();
+ if (it->second.size() > 1)
+ it->second.removeLast();
+ else
+ m_stateForNewFormElements.remove(it);
+ return true;
+}
+
+FormElementKey::FormElementKey(AtomicStringImpl* name, AtomicStringImpl* type)
+ : m_name(name), m_type(type)
+{
+ ref();
+}
+
+FormElementKey::~FormElementKey()
+{
+ deref();
+}
+
+FormElementKey::FormElementKey(const FormElementKey& other)
+ : m_name(other.name()), m_type(other.type())
+{
+ ref();
+}
+
+FormElementKey& FormElementKey::operator=(const FormElementKey& other)
+{
+ other.ref();
+ deref();
+ m_name = other.name();
+ m_type = other.type();
+ return *this;
+}
+
+void FormElementKey::ref() const
+{
+ if (name())
+ name()->ref();
+ if (type())
+ type()->ref();
+}
+
+void FormElementKey::deref() const
+{
+ if (name())
+ name()->deref();
+ if (type())
+ type()->deref();
+}
+
+unsigned FormElementKeyHash::hash(const FormElementKey& k)
+{
+ ASSERT(sizeof(k) % (sizeof(uint16_t) * 2) == 0);
+
+ unsigned l = sizeof(k) / (sizeof(uint16_t) * 2);
+ const uint16_t* s = reinterpret_cast<const uint16_t*>(&k);
+ uint32_t hash = WTF::stringHashingStartValue;
+
+ // Main loop
+ for (; l > 0; l--) {
+ hash += s[0];
+ uint32_t tmp = (s[1] << 11) ^ hash;
+ hash = (hash << 16) ^ tmp;
+ s += 2;
+ hash += hash >> 11;
+ }
+
+ // Force "avalanching" of final 127 bits
+ hash ^= hash << 3;
+ hash += hash >> 5;
+ hash ^= hash << 2;
+ hash += hash >> 15;
+ hash ^= hash << 10;
+
+ // this avoids ever returning a hash code of 0, since that is used to
+ // signal "hash not computed yet", using a value that is likely to be
+ // effectively the same as 0 when the low bits are masked
+ if (hash == 0)
+ hash = 0x80000000;
+
+ return hash;
+}
+
+void Document::setIconURL(const String& iconURL, const String& type)
+{
+ // FIXME - <rdar://problem/4727645> - At some point in the future, we might actually honor the "type"
+ if (m_iconURL.isEmpty())
+ m_iconURL = iconURL;
+ else if (!type.isEmpty())
+ m_iconURL = iconURL;
+ if (Frame* f = frame())
+ f->loader()->setIconURL(m_iconURL);
+}
+
+void Document::setUseSecureKeyboardEntryWhenActive(bool usesSecureKeyboard)
+{
+ if (m_useSecureKeyboardEntryWhenActive == usesSecureKeyboard)
+ return;
+
+ m_useSecureKeyboardEntryWhenActive = usesSecureKeyboard;
+ m_frame->selection()->updateSecureKeyboardEntryIfActive();
+}
+
+bool Document::useSecureKeyboardEntryWhenActive() const
+{
+ return m_useSecureKeyboardEntryWhenActive;
+}
+
+void Document::initSecurityContext()
+{
+ if (securityOrigin() && !securityOrigin()->isEmpty())
+ return; // m_securityOrigin has already been initialized.
+
+ if (!m_frame) {
+ // No source for a security context.
+ // This can occur via document.implementation.createDocument().
+ m_cookieURL = KURL(ParsedURLString, "");
+ ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::createEmpty());
+ return;
+ }
+
+ // In the common case, create the security context from the currently
+ // loading URL.
+ m_cookieURL = m_url;
+ ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::create(m_url, m_frame->loader()->sandboxFlags()));
+
+ if (SecurityOrigin::allowSubstituteDataAccessToLocal()) {
+ // If this document was loaded with substituteData, then the document can
+ // load local resources. See https://bugs.webkit.org/show_bug.cgi?id=16756
+ // and https://bugs.webkit.org/show_bug.cgi?id=19760 for further
+ // discussion.
+ DocumentLoader* documentLoader = m_frame->loader()->documentLoader();
+ if (documentLoader && documentLoader->substituteData().isValid())
+ securityOrigin()->grantLoadLocalResources();
+ }
+
+ if (Settings* settings = this->settings()) {
+ if (!settings->isWebSecurityEnabled()) {
+ // Web security is turned off. We should let this document access every
+ // other document. This is used primary by testing harnesses for web
+ // sites.
+ securityOrigin()->grantUniversalAccess();
+
+ } else if (settings->allowUniversalAccessFromFileURLs() && securityOrigin()->isLocal()) {
+ // Some clients want file:// URLs to have universal access, but that
+ // setting is dangerous for other clients.
+ securityOrigin()->grantUniversalAccess();
+ } else if (!settings->allowFileAccessFromFileURLs() && securityOrigin()->isLocal()) {
+ // Some clients want file:// URLs to have even tighter restrictions by
+ // default, and not be able to access other local files.
+ securityOrigin()->enforceFilePathSeparation();
+ }
+ }
+
+ if (!securityOrigin()->isEmpty())
+ return;
+
+ // If we do not obtain a meaningful origin from the URL, then we try to
+ // find one via the frame hierarchy.
+
+ Frame* ownerFrame = m_frame->tree()->parent();
+ if (!ownerFrame)
+ ownerFrame = m_frame->loader()->opener();
+
+ if (ownerFrame) {
+ m_cookieURL = ownerFrame->document()->cookieURL();
+ // We alias the SecurityOrigins to match Firefox, see Bug 15313
+ // https://bugs.webkit.org/show_bug.cgi?id=15313
+ ScriptExecutionContext::setSecurityOrigin(ownerFrame->document()->securityOrigin());
+ }
+}
+
+void Document::setSecurityOrigin(SecurityOrigin* securityOrigin)
+{
+ ScriptExecutionContext::setSecurityOrigin(securityOrigin);
+ // FIXME: Find a better place to enable DNS prefetch, which is a loader concept,
+ // not applicable to arbitrary documents.
+ initDNSPrefetch();
+}
+
+#if ENABLE(DATABASE)
+
+bool Document::isDatabaseReadOnly() const
+{
+ if (!page() || page()->settings()->privateBrowsingEnabled())
+ return true;
+ return false;
+}
+
+void Document::databaseExceededQuota(const String& name)
+{
+ Page* currentPage = page();
+ if (currentPage)
+ currentPage->chrome()->client()->exceededDatabaseQuota(document()->frame(), name);
+}
+
+#endif
+
+bool Document::isContextThread() const
+{
+ return isMainThread();
+}
+
+void Document::updateURLForPushOrReplaceState(const KURL& url)
+{
+ Frame* f = frame();
+ if (!f)
+ return;
+
+ // FIXME: Eliminate this redundancy.
+ setURL(url);
+ f->loader()->setURL(url);
+ f->loader()->documentLoader()->replaceRequestURLForSameDocumentNavigation(url);
+}
+
+void Document::statePopped(SerializedScriptValue* stateObject)
+{
+ Frame* f = frame();
+ if (!f)
+ return;
+
+ if (f->loader()->isComplete())
+ enqueuePopstateEvent(stateObject);
+ else
+ m_pendingStateObject = stateObject;
+}
+
+void Document::updateFocusAppearanceSoon(bool restorePreviousSelection)
+{
+ m_updateFocusAppearanceRestoresSelection = restorePreviousSelection;
+ if (!m_updateFocusAppearanceTimer.isActive())
+ m_updateFocusAppearanceTimer.startOneShot(0);
+}
+
+void Document::cancelFocusAppearanceUpdate()
+{
+ m_updateFocusAppearanceTimer.stop();
+}
+
+void Document::updateFocusAppearanceTimerFired(Timer<Document>*)
+{
+ Node* node = focusedNode();
+ if (!node)
+ return;
+ if (!node->isElementNode())
+ return;
+
+ updateLayout();
+
+ Element* element = static_cast<Element*>(node);
+ if (element->isFocusable())
+ element->updateFocusAppearance(m_updateFocusAppearanceRestoresSelection);
+}
+
+void Document::executeScriptSoonTimerFired(Timer<Document>* timer)
+{
+ ASSERT_UNUSED(timer, timer == &m_executeScriptSoonTimer);
+
+ Vector<pair<ScriptElementData*, CachedResourceHandle<CachedScript> > > scripts;
+ scripts.swap(m_scriptsToExecuteSoon);
+ size_t size = scripts.size();
+ for (size_t i = 0; i < size; ++i) {
+ scripts[i].first->execute(scripts[i].second.get());
+ scripts[i].first->element()->deref(); // Balances ref() in executeScriptSoon().
+ }
+}
+
+void Document::executeScriptSoon(ScriptElementData* data, CachedResourceHandle<CachedScript> cachedScript)
+{
+ ASSERT_ARG(data, data);
+
+ Element* element = data->element();
+ ASSERT(element);
+ ASSERT(element->document() == this);
+ ASSERT(element->inDocument());
+
+ m_scriptsToExecuteSoon.append(make_pair(data, cachedScript));
+ element->ref(); // Balanced by deref()s in executeScriptSoonTimerFired() and ~Document().
+ if (!m_executeScriptSoonTimer.isActive())
+ m_executeScriptSoonTimer.startOneShot(0);
+}
+
+void Document::suspendExecuteScriptSoonTimer()
+{
+ m_executeScriptSoonTimer.stop();
+}
+
+void Document::resumeExecuteScriptSoonTimer()
+{
+ if (!m_scriptsToExecuteSoon.isEmpty())
+ m_executeScriptSoonTimer.startOneShot(0);
+}
+
+// FF method for accessing the selection added for compatibility.
+DOMSelection* Document::getSelection() const
+{
+ return frame() ? frame()->domWindow()->getSelection() : 0;
+}
+
+#if ENABLE(WML)
+void Document::resetWMLPageState()
+{
+ if (WMLPageState* pageState = wmlPageStateForDocument(this))
+ pageState->reset();
+}
+
+void Document::initializeWMLPageState()
+{
+ if (!isWMLDocument())
+ return;
+
+ static_cast<WMLDocument*>(this)->initialize();
+}
+#endif
+
+void Document::attachRange(Range* range)
+{
+ ASSERT(!m_ranges.contains(range));
+ m_ranges.add(range);
+}
+
+void Document::detachRange(Range* range)
+{
+ // We don't ASSERT m_ranges.contains(range) to allow us to call this
+ // unconditionally to fix: https://bugs.webkit.org/show_bug.cgi?id=26044
+ m_ranges.remove(range);
+}
+
+CanvasRenderingContext* Document::getCSSCanvasContext(const String& type, const String& name, int width, int height)
+{
+ HTMLCanvasElement* result = getCSSCanvasElement(name);
+ if (!result)
+ return 0;
+ result->setSize(IntSize(width, height));
+ return result->getContext(type);
+}
+
+HTMLCanvasElement* Document::getCSSCanvasElement(const String& name)
+{
+ RefPtr<HTMLCanvasElement> result = m_cssCanvasElements.get(name).get();
+ if (!result) {
+ result = HTMLCanvasElement::create(this);
+ m_cssCanvasElements.set(name, result);
+ }
+ return result.get();
+}
+
+void Document::initDNSPrefetch()
+{
+ Settings* settings = this->settings();
+
+ m_haveExplicitlyDisabledDNSPrefetch = false;
+ m_isDNSPrefetchEnabled = settings && settings->dnsPrefetchingEnabled() && securityOrigin()->protocol() == "http";
+
+ // Inherit DNS prefetch opt-out from parent frame
+ if (Document* parent = parentDocument()) {
+ if (!parent->isDNSPrefetchEnabled())
+ m_isDNSPrefetchEnabled = false;
+ }
+}
+
+void Document::parseDNSPrefetchControlHeader(const String& dnsPrefetchControl)
+{
+ if (equalIgnoringCase(dnsPrefetchControl, "on") && !m_haveExplicitlyDisabledDNSPrefetch) {
+ m_isDNSPrefetchEnabled = true;
+ return;
+ }
+
+ m_isDNSPrefetchEnabled = false;
+ m_haveExplicitlyDisabledDNSPrefetch = true;
+}
+
+void Document::reportException(const String& errorMessage, int lineNumber, const String& sourceURL)
+{
+ addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, errorMessage, lineNumber, sourceURL);
+}
+
+void Document::addMessage(MessageSource source, MessageType type, MessageLevel level, const String& message, unsigned lineNumber, const String& sourceURL)
+{
+ if (DOMWindow* window = domWindow())
+ window->console()->addMessage(source, type, level, message, lineNumber, sourceURL);
+}
+
+struct PerformTaskContext : Noncopyable {
+ PerformTaskContext(PassRefPtr<DocumentWeakReference> documentReference, PassOwnPtr<ScriptExecutionContext::Task> task)
+ : documentReference(documentReference)
+ , task(task)
+ {
+ }
+
+ RefPtr<DocumentWeakReference> documentReference;
+ OwnPtr<ScriptExecutionContext::Task> task;
+};
+
+static void performTask(void* ctx)
+{
+ ASSERT(isMainThread());
+
+ PerformTaskContext* context = reinterpret_cast<PerformTaskContext*>(ctx);
+ ASSERT(context);
+
+ if (Document* document = context->documentReference->document())
+ context->task->performTask(document);
+
+ delete context;
+}
+
+void Document::postTask(PassOwnPtr<Task> task)
+{
+ callOnMainThread(performTask, new PerformTaskContext(m_weakReference, task));
+}
+
+Element* Document::findAnchor(const String& name)
+{
+ if (name.isEmpty())
+ return 0;
+ if (Element* element = getElementById(name))
+ return element;
+ for (Node* node = this; node; node = node->traverseNextNode()) {
+ if (node->hasTagName(aTag)) {
+ HTMLAnchorElement* anchor = static_cast<HTMLAnchorElement*>(node);
+ if (inCompatMode()) {
+ // Quirks mode, case insensitive comparison of names.
+ if (equalIgnoringCase(anchor->name(), name))
+ return anchor;
+ } else {
+ // Strict mode, names need to match exactly.
+ if (anchor->name() == name)
+ return anchor;
+ }
+ }
+ }
+ return 0;
+}
+
+String Document::displayStringModifiedByEncoding(const String& str) const
+{
+ if (m_decoder)
+ return m_decoder->encoding().displayString(str.impl());
+ return str;
+}
+
+PassRefPtr<StringImpl> Document::displayStringModifiedByEncoding(PassRefPtr<StringImpl> str) const
+{
+ if (m_decoder)
+ return m_decoder->encoding().displayString(str);
+ return str;
+}
+
+void Document::displayBufferModifiedByEncoding(UChar* buffer, unsigned len) const
+{
+ if (m_decoder)
+ m_decoder->encoding().displayBuffer(buffer, len);
+}
+
+void Document::enqueuePageshowEvent(PageshowEventPersistence persisted)
+{
+ // FIXME: https://bugs.webkit.org/show_bug.cgi?id=36334 Pageshow event needs to fire asynchronously.
+ dispatchWindowEvent(PageTransitionEvent::create(eventNames().pageshowEvent, persisted), this);
+}
+
+void Document::enqueueHashchangeEvent(const String& /*oldURL*/, const String& /*newURL*/)
+{
+ // FIXME: https://bugs.webkit.org/show_bug.cgi?id=36335 Hashchange event is now its own interface and takes two
+ // URL arguments which we need to pass in here.
+ enqueueEvent(Event::create(eventNames().hashchangeEvent, false, false));
+}
+
+void Document::enqueuePopstateEvent(PassRefPtr<SerializedScriptValue> stateObject)
+{
+ // FIXME: https://bugs.webkit.org/show_bug.cgi?id=36202 Popstate event needs to fire asynchronously
+ dispatchWindowEvent(PopStateEvent::create(stateObject));
+}
+
+void Document::addMediaCanStartListener(MediaCanStartListener* listener)
+{
+ ASSERT(!m_mediaCanStartListeners.contains(listener));
+ m_mediaCanStartListeners.add(listener);
+}
+
+void Document::removeMediaCanStartListener(MediaCanStartListener* listener)
+{
+ ASSERT(m_mediaCanStartListeners.contains(listener));
+ m_mediaCanStartListeners.remove(listener);
+}
+
+MediaCanStartListener* Document::takeAnyMediaCanStartListener()
+{
+ HashSet<MediaCanStartListener*>::iterator slot = m_mediaCanStartListeners.begin();
+ if (slot == m_mediaCanStartListeners.end())
+ return 0;
+ MediaCanStartListener* listener = *slot;
+ m_mediaCanStartListeners.remove(slot);
+ return listener;
+}
+
+#if ENABLE(XHTMLMP)
+bool Document::isXHTMLMPDocument() const
+{
+ if (!frame() || !frame()->loader())
+ return false;
+ // As per section 7.2 of OMA-WAP-XHTMLMP-V1_1-20061020-A.pdf, a conforming user agent
+ // MUST accept XHTMLMP document identified as "application/vnd.wap.xhtml+xml"
+ // and SHOULD accept it identified as "application/xhtml+xml" , "application/xhtml+xml" is a
+ // general MIME type for all XHTML documents, not only for XHTMLMP
+ return frame()->loader()->writer()->mimeType() == "application/vnd.wap.xhtml+xml";
+}
+#endif
+
+#if ENABLE(INSPECTOR)
+InspectorTimelineAgent* Document::inspectorTimelineAgent() const
+{
+ return page() ? page()->inspectorTimelineAgent() : 0;
+}
+
+InspectorController* Document::inspectorController() const
+{
+ return page() ? page()->inspectorController() : 0;
+}
+#endif
+
+} // namespace WebCore