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Diffstat (limited to 'WebCore/dom/Document.cpp')
| -rw-r--r-- | WebCore/dom/Document.cpp | 3830 |
1 files changed, 3830 insertions, 0 deletions
diff --git a/WebCore/dom/Document.cpp b/WebCore/dom/Document.cpp new file mode 100644 index 0000000..f6de5de --- /dev/null +++ b/WebCore/dom/Document.cpp @@ -0,0 +1,3830 @@ +/* + * 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 Apple 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 "CDATASection.h" +#include "CachedCSSStyleSheet.h" +#include "CSSHelper.h" +#include "CSSStyleSelector.h" +#include "CSSStyleSheet.h" +#include "CSSValueKeywords.h" +#include "CString.h" +#include "ClassNodeList.h" +#include "Comment.h" +#include "CookieJar.h" +#include "DOMImplementation.h" +#include "DocLoader.h" +#include "DocumentFragment.h" +#include "DocumentLoader.h" +#include "DocumentType.h" +#include "DOMWindow.h" +#include "EditingText.h" +#include "Editor.h" +#include "EditorClient.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 "HTMLBodyElement.h" +#include "HTMLDocument.h" +#include "HTMLElementFactory.h" +#include "HTMLFrameOwnerElement.h" +#include "HTMLHeadElement.h" +#include "HTMLImageLoader.h" +#include "HTMLInputElement.h" +#include "HTMLLinkElement.h" +#include "HTMLMapElement.h" +#include "HTMLNameCollection.h" +#include "HTMLNames.h" +#include "HTMLStyleElement.h" +#include "HTMLTitleElement.h" +#include "HTTPParsers.h" +#include "HistoryItem.h" +#include "HitTestRequest.h" +#include "HitTestResult.h" +#include "KeyboardEvent.h" +#include "Logging.h" +#include "MouseEvent.h" +#include "MouseEventWithHitTestResults.h" +#include "MutationEvent.h" +#include "NameNodeList.h" +#include "NodeFilter.h" +#include "NodeIterator.h" +#include "OverflowEvent.h" +#include "Page.h" +#include "PlatformKeyboardEvent.h" +#include "ProcessingInstruction.h" +#include "ProgressEvent.h" +#include "RegisteredEventListener.h" +#include "RegularExpression.h" +#include "RenderArena.h" +#include "RenderView.h" +#include "RenderWidget.h" +#include "SecurityOrigin.h" +#include "SegmentedString.h" +#include "SelectionController.h" +#include "Settings.h" +#include "StringHash.h" +#include "StyleSheetList.h" +#include "SystemTime.h" +#include "TextEvent.h" +#include "TextIterator.h" +#include "TextResourceDecoder.h" +#include "TreeWalker.h" +#include "UIEvent.h" +#include "WheelEvent.h" +#include "XMLHttpRequest.h" +#include "XMLTokenizer.h" +#include "kjs_binding.h" +#include "kjs_proxy.h" + +#if ENABLE(DATABASE) +#include "Database.h" +#include "DatabaseThread.h" +#endif + +#if ENABLE(CROSS_DOCUMENT_MESSAGING) +#include "MessageEvent.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 "SVGZoomEvent.h" +#include "SVGStyleElement.h" +#include "TimeScheduler.h" +#endif + +using namespace std; +using namespace WTF; +using namespace Unicode; + +namespace WebCore { + +using namespace EventNames; +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); + +// Golden ratio - arbitrary start value to avoid mapping all 0's to all 0's +static const unsigned PHI = 0x9e3779b9U; + +// 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 static_cast<RenderWidget*>(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()); +} + +DeprecatedPtrList<Document>* Document::changedDocuments = 0; + +// FrameView might be 0 +Document::Document(DOMImplementation* impl, Frame* frame, bool isXHTML) + : ContainerNode(0) + , m_implementation(impl) + , m_domtree_version(0) + , m_styleSheets(new StyleSheetList(this)) + , m_title("") + , m_titleSetExplicitly(false) + , m_imageLoadEventTimer(this, &Document::imageLoadEventTimerFired) + , m_updateFocusAppearanceTimer(this, &Document::updateFocusAppearanceTimerFired) +#if ENABLE(XSLT) + , m_transformSource(0) +#endif + , m_xmlVersion("1.0") + , m_xmlStandalone(false) +#if ENABLE(XBL) + , m_bindingManager(new XBLBindingManager(this)) +#endif + , m_savedRenderer(0) + , m_secureForms(0) + , m_designMode(inherit) + , m_selfOnlyRefCount(0) +#if ENABLE(SVG) + , m_svgExtensions(0) +#endif + , m_hasDashboardRegions(false) + , m_dashboardRegionsDirty(false) + , m_accessKeyMapValid(false) + , m_createRenderers(true) + , m_inPageCache(false) + , m_isAllowedToLoadLocalResources(false) + , m_useSecureKeyboardEntryWhenActive(false) + , m_isXHTML(isXHTML) + , m_numNodeLists(0) +#if ENABLE(DATABASE) + , m_hasOpenDatabases(false) +#endif +#if USE(LOW_BANDWIDTH_DISPLAY) + , m_inLowBandwidthDisplay(false) +#endif +{ + m_document.resetSkippingRef(this); + + m_printing = false; + + m_frame = frame; + m_renderArena = 0; + + m_axObjectCache = 0; + + // FIXME: DocLoader probably no longer needs the frame argument + m_docLoader = new DocLoader(frame, this); + + visuallyOrdered = false; + m_bParsing = false; + m_docChanged = false; + m_tokenizer = 0; + m_wellFormed = false; + + setParseMode(Strict); + + m_textColor = Color::black; + m_listenerTypes = 0; + m_inDocument = true; + m_inStyleRecalc = false; + m_closeAfterStyleRecalc = false; + m_usesDescendantRules = false; + m_usesSiblingRules = false; + m_usesFirstLineRules = false; + m_usesFirstLetterRules = false; + m_gotoAnchorNeededAfterStylesheetsLoad = false; + + m_styleSelector = 0; + m_didCalculateStyleSelector = false; + m_pendingStylesheets = 0; + m_ignorePendingStylesheets = false; + m_hasNodesWithPlaceholderStyle = false; + m_pendingSheetLayout = NoLayoutWithPendingSheets; + + m_cssTarget = 0; + + resetLinkColor(); + resetVisitedLinkColor(); + resetActiveLinkColor(); + + m_processingLoadEvent = false; + m_startTime = currentTime(); + m_overMinimumLayoutThreshold = false; + + initSecurityOrigin(); + + static int docID = 0; + m_docID = docID++; +} + +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. + + DocPtr<Document> guard(this); + + // 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(); + + deleteAllValues(m_markers); + m_markers.clear(); + + delete m_tokenizer; + m_tokenizer = 0; + +#ifndef NDEBUG + m_inRemovedLastRefFunction = false; +#endif + } else { +#ifndef NDEBUG + m_deletionHasBegun = true; +#endif + delete this; + } +} + +Document::~Document() +{ + ASSERT(!renderer()); + ASSERT(!m_inPageCache); + ASSERT(!m_savedRenderer); + + removeAllEventListeners(); + +#if ENABLE(SVG) + delete m_svgExtensions; +#endif + + XMLHttpRequest::detachRequests(this); + { + KJS::JSLock lock; + ScriptInterpreter::forgetAllDOMNodesForDocument(this); + } + + if (m_docChanged && changedDocuments) + changedDocuments->remove(this); + delete m_tokenizer; + m_document.resetSkippingRef(0); + delete m_styleSelector; + delete m_docLoader; + + if (m_renderArena) { + delete m_renderArena; + m_renderArena = 0; + } + +#if ENABLE(XSLT) + xmlFreeDoc((xmlDocPtr)m_transformSource); +#endif + +#if ENABLE(XBL) + delete m_bindingManager; +#endif + + deleteAllValues(m_markers); + + if (m_axObjectCache) { + delete m_axObjectCache; + m_axObjectCache = 0; + } + m_decoder = 0; + + unsigned count = sizeof(m_nameCollectionInfo) / sizeof(m_nameCollectionInfo[0]); + for (unsigned i = 0; i < count; i++) + deleteAllValues(m_nameCollectionInfo[i]); + +#if ENABLE(DATABASE) + if (m_databaseThread) { + ASSERT(m_databaseThread->terminationRequested()); + m_databaseThread = 0; + } +#endif + + if (m_styleSheets) + m_styleSheets->documentDestroyed(); +} + +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 +{ + 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; +} + +Element* Document::documentElement() const +{ + if (!m_documentElement) { + Node* n = firstChild(); + while (n && !n->isElementNode()) + n = n->nextSibling(); + m_documentElement = static_cast<Element*>(n); + } + + return m_documentElement.get(); +} + +PassRefPtr<Element> Document::createElement(const String &name, ExceptionCode& ec) +{ + if (m_isXHTML) { + if (!isValidName(name)) { + ec = INVALID_CHARACTER_ERR; + return 0; + } + + return HTMLElementFactory::createHTMLElement(AtomicString(name), this, 0, false); + } else + return createElementNS(nullAtom, name, ec); +} + +PassRefPtr<DocumentFragment> Document::createDocumentFragment() +{ + return new DocumentFragment(document()); +} + +PassRefPtr<Text> Document::createTextNode(const String &data) +{ + return new Text(this, data); +} + +PassRefPtr<Comment> Document::createComment (const String &data) +{ + return new Comment(this, data); +} + +PassRefPtr<CDATASection> Document::createCDATASection(const String &data, ExceptionCode& ec) +{ + if (isHTMLDocument()) { + ec = NOT_SUPPORTED_ERR; + return 0; + } + return new CDATASection(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 new ProcessingInstruction(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 new EntityReference(this, name); +} + +PassRefPtr<EditingText> Document::createEditingTextNode(const String &text) +{ + return new EditingText(this, text); +} + +PassRefPtr<CSSStyleDeclaration> Document::createCSSStyleDeclaration() +{ + return new CSSMutableStyleDeclaration; +} + +PassRefPtr<Node> Document::importNode(Node* importedNode, bool deep, ExceptionCode& ec) +{ + ec = 0; + + if (!importedNode +#if ENABLE(SVG) + || (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; + + NamedAttrMap* 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: { + RefPtr<Attr> newAttr = new Attr(0, this, static_cast<Attr*>(importedNode)->attr()->clone()); + newAttr->createTextChild(); + return newAttr.release(); + } + 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->m_attrWasSpecifiedOrElementHasRareData = true; + break; + } + default: + 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; +} + +// FIXME: This should really be in a possible ElementFactory class +PassRefPtr<Element> Document::createElement(const QualifiedName& qName, bool createdByParser, ExceptionCode& ec) +{ + 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.localName(), this, 0, createdByParser); +#if ENABLE(SVG) + else if (qName.namespaceURI() == SVGNames::svgNamespaceURI) + e = SVGElementFactory::createSVGElement(qName, this, createdByParser); +#endif + + if (!e) + e = new Element(qName, document()); + + if (e && !qName.prefix().isNull()) { + ec = 0; + e->setPrefix(qName.prefix(), ec); + if (ec) + return 0; + } + + return e.release(); +} + +PassRefPtr<Element> Document::createElementNS(const String &_namespaceURI, const String &qualifiedName, ExceptionCode& ec) +{ + String prefix, localName; + if (!parseQualifiedName(qualifiedName, prefix, localName)) { + ec = INVALID_CHARACTER_ERR; + return 0; + } + + RefPtr<Element> e; + QualifiedName qName = QualifiedName(AtomicString(prefix), AtomicString(localName), AtomicString(_namespaceURI)); + + return createElement(qName, false, ec); +} + +Element *Document::getElementById(const AtomicString& elementId) const +{ + if (elementId.length() == 0) + return 0; + + 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->getAttribute(idAttr) == 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::inputEncoding() const +{ + if (TextResourceDecoder* d = decoder()) + return d->encoding().name(); + 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) +{ + // FIXME: also raise NOT_SUPPORTED_ERR if the version is set to a value that is not supported by this Document. + if (!implementation()->hasFeature("XML", String())) { + ec = NOT_SUPPORTED_ERR; + return; + } + + m_xmlVersion = version; +} + +void Document::setXMLStandalone(bool standalone, ExceptionCode& ec) +{ + if (!implementation()->hasFeature("XML", String())) { + ec = NOT_SUPPORTED_ERR; + return; + } + + m_xmlStandalone = standalone; +} + +KURL Document::documentURI() const +{ + return m_baseURL; +} + +void Document::setDocumentURI(const String& uri) +{ + m_baseURL = KURL(uri); +} + +KURL Document::baseURI() const +{ + return m_baseURL; +} + +Element* Document::elementFromPoint(int x, int y) const +{ + if (!renderer()) + return 0; + + HitTestRequest request(true, true); + HitTestResult result(IntPoint(x, y)); + renderer()->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); +} + +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) +{ + 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()); +} + +void Document::updateTitle() +{ + 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()) { + ExceptionCode ec = 0; + m_titleElement = createElement("title", ec); + ASSERT(!ec); + 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_title == title) + return; + + m_title = title; + updateTitle(); + + if (m_titleSetExplicitly && m_titleElement && m_titleElement->hasTagName(titleTag)) + 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_title.isEmpty()) { + m_title = ""; + 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 new Range(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 new NodeIterator(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 new TreeWalker(root, whatToShow, filter, expandEntityReferences); +} + +void Document::setDocumentChanged(bool b) +{ + if (b) { + if (!m_docChanged) { + if (!changedDocuments) + changedDocuments = new DeprecatedPtrList<Document>; + changedDocuments->append(this); + } + if (m_accessKeyMapValid) { + m_accessKeyMapValid = false; + m_elementsByAccessKey.clear(); + } + } else { + if (m_docChanged && changedDocuments) + changedDocuments->remove(this); + } + + m_docChanged = b; +} + +void Document::recalcStyle(StyleChange change) +{ + // we should not enter style recalc while painting + if (frame() && frame()->isPainting()) { + ASSERT(!frame()->isPainting()); + return; + } + + if (m_inStyleRecalc) + return; // Guard against re-entrancy. -dwh + + m_inStyleRecalc = true; + suspendPostAttachCallbacks(); + + ASSERT(!renderer() || renderArena()); + if (!renderer() || !renderArena()) + goto bail_out; + + if (change == Force) { + // style selector may set this again during recalc + m_hasNodesWithPlaceholderStyle = false; + + RenderStyle* oldStyle = renderer()->style(); + if (oldStyle) + oldStyle->ref(); + RenderStyle* _style = new (m_renderArena) RenderStyle(); + _style->ref(); + _style->setDisplay(BLOCK); + _style->setVisuallyOrdered(visuallyOrdered); + // ### make the font stuff _really_ work!!!! + + FontDescription fontDescription; + fontDescription.setUsePrinterFont(printing()); + if (Settings* settings = this->settings()) { + fontDescription.setRenderingMode(settings->fontRenderingMode()); + if (printing() && !settings->shouldPrintBackgrounds()) + _style->setForceBackgroundsToWhite(true); + const AtomicString& stdfont = settings->standardFontFamily(); + if (!stdfont.isEmpty()) { + fontDescription.firstFamily().setFamily(stdfont); + fontDescription.firstFamily().appendFamily(0); + } + fontDescription.setKeywordSize(CSS_VAL_MEDIUM - CSS_VAL_XX_SMALL + 1); + m_styleSelector->setFontSize(fontDescription, m_styleSelector->fontSizeForKeyword(CSS_VAL_MEDIUM, inCompatMode(), false)); + } + + _style->setFontDescription(fontDescription); + _style->font().update(m_styleSelector->fontSelector()); + if (inCompatMode()) + _style->setHtmlHacks(true); // enable html specific rendering tricks + + StyleChange ch = diff(_style, oldStyle); + if (renderer() && ch != NoChange) + renderer()->setStyle(_style); + if (change != Force) + change = ch; + + _style->deref(m_renderArena); + if (oldStyle) + oldStyle->deref(m_renderArena); + } + + for (Node* n = firstChild(); n; n = n->nextSibling()) + if (change >= Inherit || n->hasChangedChild() || n->changed()) + n->recalcStyle(change); + + if (changed() && view()) + view()->layout(); + +bail_out: + setChanged(NoStyleChange); + setHasChangedChild(false); + setDocumentChanged(false); + + 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(); + } +} + +void Document::updateRendering() +{ + if (hasChangedChild()) + recalcStyle(NoChange); +} + +void Document::updateDocumentsRendering() +{ + if (!changedDocuments) + return; + + while (Document* doc = changedDocuments->take()) { + doc->m_docChanged = false; + doc->updateRendering(); + } +} + +void Document::updateLayout() +{ + if (Element* oe = ownerElement()) + oe->document()->updateLayout(); + + // FIXME: Dave Hyatt's pretty sure we can remove this because layout calls recalcStyle as needed. + updateRendering(); + + // 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 immediatly. + recalcStyle(Force); + } + + updateLayout(); + + m_ignorePendingStylesheets = oldIgnore; +} + +void Document::attach() +{ + ASSERT(!attached()); + ASSERT(!m_inPageCache); + + if (!m_renderArena) + m_renderArena = new RenderArena(); + + // Create the rendering tree + setRenderer(new (m_renderArena) RenderView(this, view())); + + if (!m_styleSelector) { + bool matchAuthorAndUserStyles = true; + if (Settings* docSettings = settings()) + matchAuthorAndUserStyles = docSettings->authorAndUserStylesEnabled(); + m_styleSelector = new CSSStyleSelector(this, userStyleSheet(), m_styleSheets.get(), m_mappedElementSheet.get(), !inCompatMode(), matchAuthorAndUserStyles); + m_styleSelector->setEncodedURL(m_url); + } + + recalcStyle(Force); + + RenderObject* render = renderer(); + setRenderer(0); + + ContainerNode::attach(); + + setRenderer(render); +} + +void Document::detach() +{ + ASSERT(attached()); + ASSERT(!m_inPageCache); + + RenderObject* render = renderer(); + + // indicate destruction mode, i.e. attached() but renderer == 0 + setRenderer(0); + + // Empty out these lists as a performance optimization, since detaching + // all the individual render objects will cause all the RenderImage + // objects to remove themselves from the lists. + m_imageLoadEventDispatchSoonList.clear(); + m_imageLoadEventDispatchingList.clear(); + + m_hoverNode = 0; + m_focusedNode = 0; + m_activeNode = 0; + + ContainerNode::detach(); + + if (render) + render->destroy(); + + // FIXME: is this needed or desirable? + m_frame = 0; + + if (m_renderArena) { + delete m_renderArena; + m_renderArena = 0; + } +} + +void Document::removeAllEventListenersFromAllNodes() +{ + m_windowEventListeners.clear(); + removeAllDisconnectedNodeEventListeners(); + for (Node *n = this; n; n = n->traverseNextNode()) { + if (!n->isEventTargetNode()) + continue; + EventTargetNodeCast(n)->removeAllEventListeners(); + } +} + +void Document::registerDisconnectedNodeWithEventListeners(Node* node) +{ + m_disconnectedNodesWithEventListeners.add(node); +} + +void Document::unregisterDisconnectedNodeWithEventListeners(Node* node) +{ + m_disconnectedNodesWithEventListeners.remove(node); +} + +void Document::removeAllDisconnectedNodeEventListeners() +{ + HashSet<Node*>::iterator end = m_disconnectedNodesWithEventListeners.end(); + for (HashSet<Node*>::iterator i = m_disconnectedNodesWithEventListeners.begin(); i != end; ++i) + EventTargetNodeCast(*i)->removeAllEventListeners(); + m_disconnectedNodesWithEventListeners.clear(); +} + +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. + 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() +{ + visuallyOrdered = true; + if (renderer()) + renderer()->style()->setVisuallyOrdered(true); +} + +Tokenizer* Document::createTokenizer() +{ + // FIXME: this should probably pass the frame instead + return new XMLTokenizer(this, view()); +} + +void Document::open() +{ + // This is work that we should probably do in clear(), but we can't have it + // happen when implicitOpen() is called unless we reorganize Frame code. + if (Document* parent = parentDocument()) { + if (m_url.isEmpty() || m_url == blankURL()) + setURL(parent->baseURL()); + if (m_baseURL.isEmpty() || m_baseURL == blankURL()) + setBaseURL(parent->baseURL()); + } + + if (m_frame) { + if (m_frame->loader()->isLoadingMainResource() || (tokenizer() && tokenizer()->executingScript())) + return; + + if (m_frame->loader()->state() == FrameStateProvisional) + m_frame->loader()->stopAllLoaders(); + } + + implicitOpen(); + + if (m_frame) + m_frame->loader()->didExplicitOpen(); +} + +void Document::cancelParsing() +{ + if (m_tokenizer) { + // We have to clear the tokenizer 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 + delete m_tokenizer; + m_tokenizer = 0; + close(); + } +} + +void Document::implicitOpen() +{ + cancelParsing(); + + clear(); + m_tokenizer = createTokenizer(); + setParsing(true); +} + +HTMLElement* Document::body() +{ + 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 = i; + } + return static_cast<HTMLElement*>(body); +} + +void Document::setBody(PassRefPtr<HTMLElement> newBody, ExceptionCode& ec) +{ + if (!newBody) { + 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->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()->loader()->isScheduledLocationChangePending(); + bool doload = !parsing() && m_tokenizer && !m_processingLoadEvent && !wasLocationChangePending; + + if (!doload) + return; + + m_processingLoadEvent = true; + + m_wellFormed = m_tokenizer && m_tokenizer->wellFormed(); + + // We have to clear the tokenizer, in case someone document.write()s from the + // onLoad event handler, as in Radar 3206524. + delete m_tokenizer; + m_tokenizer = 0; + + // Create a body element if we don't already have one. See Radar 3758785. + if (!this->body() && isHTMLDocument()) { + if (Node* documentElement = this->documentElement()) { + ExceptionCode ec = 0; + documentElement->appendChild(new HTMLBodyElement(this), ec); + ASSERT(!ec); + } + } + + dispatchImageLoadEventsNow(); + this->dispatchWindowEvent(loadEvent, false, false); + if (Frame* f = frame()) + 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()->loader()->isScheduledLocationChangePending() && 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(); + + // Now do our painting/layout, but only if we aren't in a subframe or if we're in a subframe + // that has been sized already. Otherwise, our view size would be incorrect, so doing any + // layout/painting now would be pointless. + if (!ownerElement() || (ownerElement()->renderer() && !ownerElement()->renderer()->needsLayout())) { + updateRendering(); + + // Always do a layout after loading if needed. + if (view() && renderer() && (!renderer()->firstChild() || renderer()->needsLayout())) + view()->layout(); + + // Paint immediately after the document is ready. We do this to ensure that any timers set by the + // onload don't have a chance to fire before we would have painted. To avoid over-flushing we only + // worry about this for the top-level document. +#if !PLATFORM(MAC) + // FIXME: This causes a timing issue with the dispatchDidFinishLoad delegate callback. + // See <rdar://problem/5092361> + if (view() && !ownerElement()) + view()->update(); +#endif + } + +#if PLATFORM(MAC) + if (renderer() && AXObjectCache::accessibilityEnabled()) + axObjectCache()->postNotificationToElement(renderer(), "AXLoadComplete"); +#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() +{ + // We can update layout if: + // (a) we actually need a layout + // (b) our stylesheets are all loaded + // (c) we have a <body> + return (renderer() && renderer()->needsLayout() && haveStylesheetsLoaded() && + documentElement() && documentElement()->renderer() && + (!documentElement()->hasTagName(htmlTag) || body())); +} + +int Document::minimumLayoutDelay() +{ + if (m_overMinimumLayoutThreshold) + return 0; + + 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); +} + +int Document::elapsedTime() const +{ + return static_cast<int>((currentTime() - m_startTime) * 1000); +} + +void Document::write(const String& text) +{ +#ifdef INSTRUMENT_LAYOUT_SCHEDULING + if (!ownerElement()) + printf("Beginning a document.write at %d\n", elapsedTime()); +#endif + + if (!m_tokenizer) { + open(); + ASSERT(m_tokenizer); + if (!m_tokenizer) + return; + write("<html>"); + } + m_tokenizer->write(text, false); + +#ifdef INSTRUMENT_LAYOUT_SCHEDULING + if (!ownerElement()) + printf("Ending a document.write at %d\n", elapsedTime()); +#endif +} + +void Document::writeln(const String& text) +{ + write(text); + write("\n"); +} + +void Document::finishParsing() +{ +#ifdef INSTRUMENT_LAYOUT_SCHEDULING + if (!ownerElement()) + printf("Received all data at %d\n", elapsedTime()); +#endif + + // Let the tokenizer 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, tokenizer gets deleted + // (3) Data is still remaining to be parsed. + if (m_tokenizer) + m_tokenizer->finish(); +} + +void Document::clear() +{ + delete m_tokenizer; + m_tokenizer = 0; + + removeChildren(); + + m_windowEventListeners.clear(); +} + +void Document::setURL(const KURL& url) +{ + if (url == m_url) + return; + + m_url = url; + if (m_styleSelector) + m_styleSelector->setEncodedURL(url); + + m_isAllowedToLoadLocalResources = shouldBeAllowedToLoadLocalResources(); + } + +bool Document::shouldBeAllowedToLoadLocalResources() const +{ + if (FrameLoader::shouldTreatURLAsLocal(m_url.string())) + return true; + + Frame* frame = this->frame(); + if (!frame) + return false; + + DocumentLoader* documentLoader = frame->loader()->documentLoader(); + if (!documentLoader) + return false; + + if (m_url == blankURL() && frame->loader()->opener() && frame->loader()->opener()->document()->isAllowedToLoadLocalResources()) + return true; + + return documentLoader->substituteData().isValid(); +} + +void Document::setBaseURL(const KURL& baseURL) +{ + m_baseURL = baseURL; + if (m_elemSheet) + m_elemSheet->setHref(baseURL.string()); +} + +void Document::setCSSStyleSheet(const String &url, const String& charset, const CachedCSSStyleSheet* sheet) +{ + m_sheet = new CSSStyleSheet(this, url, charset); + m_sheet->parseString(sheet->sheetText()); + + updateStyleSelector(); +} + +#if FRAME_LOADS_USER_STYLESHEET +void Document::setUserStyleSheet(const String& sheet) +{ + if (m_usersheet != sheet) { + m_usersheet = sheet; + updateStyleSelector(); + } +} +#endif + +String Document::userStyleSheet() const +{ +#if FRAME_LOADS_USER_STYLESHEET + return m_usersheet; +#else + Page* page = this->page(); + if (!page) + return String(); + return page->userStyleSheet(); +#endif +} + +CSSStyleSheet* Document::elementSheet() +{ + if (!m_elemSheet) + m_elemSheet = new CSSStyleSheet(this, baseURL().string()); + return m_elemSheet.get(); +} + +CSSStyleSheet* Document::mappedElementSheet() +{ + if (!m_mappedElementSheet) + m_mappedElementSheet = new CSSStyleSheet(this, baseURL().string()); + 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) { + // 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; + } + + 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->loader()->scheduleHTTPRedirection(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()) + static_cast<HTMLDocument*>(this)->setCookie(content); + } else if (equalIgnoringCase(equiv, "content-language")) + setContentLanguage(content); +} + +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); + renderer()->layer()->hitTest(request, result); + + if (!request.readonly) + updateRendering(); + + 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(); + + if (!m_pendingStylesheets && m_tokenizer) + m_tokenizer->executeScriptsWaitingForStylesheets(); + + if (!m_pendingStylesheets && m_gotoAnchorNeededAfterStylesheetsLoad && m_frame) + m_frame->loader()->gotoAnchor(); +} + +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(); + recalcStyle(Force); + +#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::recalcStyleSelector() +{ + if (!renderer() || !attached()) + return; + + DeprecatedPtrList<StyleSheet> oldStyleSheets = m_styleSheets->styleSheets; + m_styleSheets->styleSheets.clear(); + + bool matchAuthorAndUserStyles = true; + if (Settings* settings = this->settings()) + matchAuthorAndUserStyles = settings->authorAndUserStylesEnabled(); + + Node* n = matchAuthorAndUserStyles ? this : 0; + for ( ; n; n = n->traverseNextNode()) { + 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(); + } + + CSSStyleSheet* cssSheet = new CSSStyleSheet(this); + cssSheet->parseString(sheetText); + pi->setCSSStyleSheet(cssSheet); + sheet = cssSheet; + } + } + } 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) { + sheet->ref(); + m_styleSheets->styleSheets.append(sheet); + } + + // For HTML documents, stylesheets are not allowed within/after the <BODY> tag. So we + // can stop searching here. + if (isHTMLDocument() && n->hasTagName(bodyTag)) + break; + } + + // De-reference all the stylesheets in the old list + DeprecatedPtrListIterator<StyleSheet> it(oldStyleSheets); + for (; it.current(); ++it) + it.current()->deref(); + + // Create a new style selector + delete m_styleSelector; + m_styleSelector = new CSSStyleSelector(this, userStyleSheet(), m_styleSheets.get(), m_mappedElementSheet.get(), !inCompatMode(), matchAuthorAndUserStyles); + m_styleSelector->setEncodedURL(m_url); + 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(); +} + +const Vector<DashboardRegionValue>& Document::dashboardRegions() const +{ + return m_dashboardRegions; +} + +void Document::setDashboardRegions(const Vector<DashboardRegionValue>& regions) +{ + m_dashboardRegions = regions; + setDashboardRegionsDirty(false); +} + +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->m_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 = static_cast<RenderObject*>(oldFocusedNode.get()->renderer()); + if (r && (r->isTextArea() || r->isTextField()) && r->isEdited()) { + EventTargetNodeCast(oldFocusedNode.get())->dispatchHTMLEvent(changeEvent, true, false); + if ((r = static_cast<RenderObject*>(oldFocusedNode.get()->renderer()))) + r->setEdited(false); + } + + // Dispatch the blur event and let the node do any other blur related activities (important for text fields) + EventTargetNodeCast(oldFocusedNode.get())->dispatchBlurEvent(); + + if (m_focusedNode) { + // handler shifted focus + focusChangeBlocked = true; + newFocusedNode = 0; + } + EventTargetNodeCast(oldFocusedNode.get())->dispatchUIEvent(DOMFocusOutEvent); + if (m_focusedNode) { + // handler shifted focus + focusChangeBlocked = true; + newFocusedNode = 0; + } + if ((oldFocusedNode.get() == this) && oldFocusedNode->hasOneRef()) + return true; + + if (oldFocusedNode.get() == oldFocusedNode->rootEditableElement()) + frame()->editor()->didEndEditing(); + } + + 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) + EventTargetNodeCast(m_focusedNode.get())->dispatchFocusEvent(); + + if (m_focusedNode != newFocusedNode) { + // handler shifted focus + focusChangeBlocked = true; + goto SetFocusedNodeDone; + } + EventTargetNodeCast(m_focusedNode.get())->dispatchUIEvent(DOMFocusInEvent); + if (m_focusedNode != newFocusedNode) { + // handler shifted focus + focusChangeBlocked = true; + goto SetFocusedNodeDone; + } + m_focusedNode->setFocus(); + + if (m_focusedNode.get() == 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(); + else + view()->setFocus(); + } + } + +#if PLATFORM(MAC) + if (!focusChangeBlocked && m_focusedNode && AXObjectCache::accessibilityEnabled()) + axObjectCache()->handleFocusedUIElementChanged(); +#endif + +SetFocusedNodeDone: + updateRendering(); + return !focusChangeBlocked; + } + +void Document::setCSSTarget(Node* n) +{ + if (m_cssTarget) + m_cssTarget->setChanged(); + m_cssTarget = n; + if (n) + n->setChanged(); +} + +Node* Document::getCSSTarget() const +{ + return m_cssTarget; +} + +void Document::attachNodeIterator(NodeIterator *ni) +{ + m_nodeIterators.add(ni); +} + +void Document::detachNodeIterator(NodeIterator *ni) +{ + m_nodeIterators.remove(ni); +} + +void Document::notifyBeforeNodeRemoval(Node *n) +{ + if (Frame* f = frame()) { + f->selectionController()->nodeWillBeRemoved(n); + f->dragCaretController()->nodeWillBeRemoved(n); + } + + HashSet<NodeIterator*>::const_iterator end = m_nodeIterators.end(); + for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != end; ++it) + (*it)->notifyBeforeNodeRemoval(n); +} + +DOMWindow* Document::defaultView() const +{ + if (!frame()) + return 0; + + return frame()->domWindow(); +} + +PassRefPtr<Event> Document::createEvent(const String& eventType, ExceptionCode& ec) +{ + if (eventType == "UIEvents" || eventType == "UIEvent") + return new UIEvent; + if (eventType == "MouseEvents" || eventType == "MouseEvent") + return new MouseEvent; + if (eventType == "MutationEvents" || eventType == "MutationEvent") + return new MutationEvent; + if (eventType == "KeyboardEvents" || eventType == "KeyboardEvent") + return new KeyboardEvent; + if (eventType == "HTMLEvents" || eventType == "Event" || eventType == "Events") + return new Event; + if (eventType == "ProgressEvent") + return new ProgressEvent; + if (eventType == "TextEvent") + return new TextEvent; + if (eventType == "OverflowEvent") + return new OverflowEvent; + if (eventType == "WheelEvent") + return new WheelEvent; +#if ENABLE(SVG) + if (eventType == "SVGEvents") + return new Event; + if (eventType == "SVGZoomEvents") + return new SVGZoomEvent; +#endif +#if ENABLE(CROSS_DOCUMENT_MESSAGING) + if (eventType == "MessageEvent") + return new MessageEvent; +#endif + ec = NOT_SUPPORTED_ERR; + return 0; +} + +CSSStyleDeclaration *Document::getOverrideStyle(Element */*elt*/, const String &/*pseudoElt*/) +{ + return 0; // ### +} + +void Document::handleWindowEvent(Event *evt, bool useCapture) +{ + if (m_windowEventListeners.isEmpty()) + return; + + // if any html event listeners are registered on the window, then dispatch them here + RegisteredEventListenerList listenersCopy = m_windowEventListeners; + RegisteredEventListenerList::iterator it = listenersCopy.begin(); + + for (; it != listenersCopy.end(); ++it) + if ((*it)->eventType() == evt->type() && (*it)->useCapture() == useCapture && !(*it)->removed()) + (*it)->listener()->handleEvent(evt, true); +} + +void Document::setHTMLWindowEventListener(const AtomicString &eventType, PassRefPtr<EventListener> listener) +{ + // If we already have it we don't want removeWindowEventListener to delete it + removeHTMLWindowEventListener(eventType); + if (listener) + addWindowEventListener(eventType, listener, false); +} + +EventListener *Document::getHTMLWindowEventListener(const AtomicString &eventType) +{ + RegisteredEventListenerList::iterator it = m_windowEventListeners.begin(); + for (; it != m_windowEventListeners.end(); ++it) + if ( (*it)->eventType() == eventType && (*it)->listener()->isHTMLEventListener()) + return (*it)->listener(); + return 0; +} + +void Document::removeHTMLWindowEventListener(const AtomicString &eventType) +{ + RegisteredEventListenerList::iterator it = m_windowEventListeners.begin(); + for (; it != m_windowEventListeners.end(); ++it) + if ( (*it)->eventType() == eventType && (*it)->listener()->isHTMLEventListener()) { + m_windowEventListeners.remove(it); + return; + } +} + +void Document::addWindowEventListener(const AtomicString &eventType, PassRefPtr<EventListener> listener, bool useCapture) +{ + // Remove existing identical listener set with identical arguments. + // The DOM 2 spec says that "duplicate instances are discarded" in this case. + removeWindowEventListener(eventType, listener.get(), useCapture); + m_windowEventListeners.append(new RegisteredEventListener(eventType, listener, useCapture)); +} + +void Document::removeWindowEventListener(const AtomicString &eventType, EventListener *listener, bool useCapture) +{ + RegisteredEventListener rl(eventType, listener, useCapture); + RegisteredEventListenerList::iterator it = m_windowEventListeners.begin(); + for (; it != m_windowEventListeners.end(); ++it) + if (*(*it) == rl) { + m_windowEventListeners.remove(it); + return; + } +} + +bool Document::hasWindowEventListener(const AtomicString &eventType) +{ + RegisteredEventListenerList::iterator it = m_windowEventListeners.begin(); + for (; it != m_windowEventListeners.end(); ++it) + if ((*it)->eventType() == eventType) { + return true; + } + return false; +} + +PassRefPtr<EventListener> Document::createHTMLEventListener(const String& functionName, const String& code, Node *node) +{ + if (Frame* frm = frame()) + if (frm->scriptProxy()->isEnabled()) + return frm->scriptProxy()->createHTMLEventHandler(functionName, code, node); + return 0; +} + +void Document::setHTMLWindowEventListener(const AtomicString& eventType, Attribute* attr) +{ + setHTMLWindowEventListener(eventType, + createHTMLEventListener(attr->localName().string(), attr->value(), 0)); +} + +void Document::dispatchImageLoadEventSoon(HTMLImageLoader *image) +{ + m_imageLoadEventDispatchSoonList.append(image); + if (!m_imageLoadEventTimer.isActive()) + m_imageLoadEventTimer.startOneShot(0); +} + +void Document::removeImage(HTMLImageLoader* image) +{ + // Remove instances of this image from both lists. + // Use loops because we allow multiple instances to get into the lists. + while (m_imageLoadEventDispatchSoonList.removeRef(image)) { } + while (m_imageLoadEventDispatchingList.removeRef(image)) { } + if (m_imageLoadEventDispatchSoonList.isEmpty()) + m_imageLoadEventTimer.stop(); +} + +void Document::dispatchImageLoadEventsNow() +{ + // need to avoid re-entering this function; if new dispatches are + // scheduled before the parent finishes processing the list, they + // will set a timer and eventually be processed + if (!m_imageLoadEventDispatchingList.isEmpty()) { + return; + } + + m_imageLoadEventTimer.stop(); + + m_imageLoadEventDispatchingList = m_imageLoadEventDispatchSoonList; + m_imageLoadEventDispatchSoonList.clear(); + for (DeprecatedPtrListIterator<HTMLImageLoader> it(m_imageLoadEventDispatchingList); it.current();) { + HTMLImageLoader* image = it.current(); + // Must advance iterator *before* dispatching call. + // Otherwise, it might be advanced automatically if dispatching the call had a side effect + // of destroying the current HTMLImageLoader, and then we would advance past the *next* item, + // missing one altogether. + ++it; + image->dispatchLoadEvent(); + } + m_imageLoadEventDispatchingList.clear(); +} + +void Document::imageLoadEventTimerFired(Timer<Document>*) +{ + dispatchImageLoadEventsNow(); +} + +Element* Document::ownerElement() const +{ + if (!frame()) + return 0; + return frame()->ownerElement(); +} + +String Document::cookie() const +{ + return cookies(this, url()); +} + +void Document::setCookie(const String& value) +{ + setCookies(this, url(), policyBaseURL(), value); +} + +String Document::referrer() const +{ + if (frame()) + return frame()->loader()->referrer(); + return String(); +} + +String Document::domain() const +{ + return m_securityOrigin->host(); +} + +void Document::setDomain(const String& newDomain) +{ + // 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 + // m_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)) { + m_securityOrigin->setDomainFromDOM(newDomain); + return; + } + + int oldLength = domain().length(); + int newLength = newDomain.length(); + // e.g. newDomain = webkit.org (10) and domain() = www.webkit.org (14) + if (newLength >= oldLength) + return; + + String test = domain(); + // Check that it's a subdomain, not e.g. "ebkit.org" + if (test[oldLength - newLength - 1] != '.') + 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) + return; + + m_securityOrigin->setDomainFromDOM(newDomain); +} + +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"); +} + +bool Document::isValidName(const String &name) +{ + const UChar* s = reinterpret_cast<const UChar*>(name.characters()); + unsigned length = name.length(); + + if (length == 0) + return false; + + unsigned i = 0; + + UChar32 c; + U16_NEXT(s, i, length, c) + if (!isValidNameStart(c)) + return false; + + while (i < length) { + U16_NEXT(s, i, length, c) + if (!isValidNamePart(c)) + return false; + } + + return true; +} + +bool Document::parseQualifiedName(const String &qualifiedName, String &prefix, String &localName) +{ + unsigned length = qualifiedName.length(); + + if (length == 0) + return false; + + bool nameStart = true; + bool sawColon = false; + int colonPos = 0; + + const UChar* s = reinterpret_cast<const UChar*>(qualifiedName.characters()); + for (unsigned i = 0; i < length;) { + UChar32 c; + U16_NEXT(s, i, length, c) + if (c == ':') { + if (sawColon) + return false; // multiple colons: not allowed + nameStart = true; + sawColon = true; + colonPos = i - 1; + } else if (nameStart) { + if (!isValidNameStart(c)) + return false; + nameStart = false; + } else { + if (!isValidNamePart(c)) + return false; + } + } + + if (!sawColon) { + prefix = String(); + localName = qualifiedName; + } else { + prefix = qualifiedName.substring(0, colonPos); + localName = qualifiedName.substring(colonPos + 1); + } + + 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; + + 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; + return m_imageMapsByName.get(mapName.impl()); +} + +void Document::setDecoder(TextResourceDecoder *decoder) +{ + m_decoder = decoder; +} + +UChar Document::backslashAsCurrencySymbol() const +{ + if (!m_decoder) + return '\\'; + return m_decoder->encoding().backslashAsCurrencySymbol(); +} + +KURL Document::completeURL(const String& url) +{ + // Always return a null URL when passed a null string. + // FIXME: Should we change the KURL constructor to have this behavior? + if (url.isNull()) + return KURL(); + KURL base = m_baseURL; + if (base.isEmpty()) + base = m_url; + if (!m_decoder) + return KURL(base, url); + return KURL(base, url, m_decoder->encoding()); +} + +bool Document::inPageCache() +{ + return m_inPageCache; +} + +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(); + } else { + ASSERT(renderer() == 0 || renderer() == m_savedRenderer); + ASSERT(m_renderArena); + setRenderer(m_savedRenderer); + m_savedRenderer = 0; + } +} + +void Document::willSaveToCache() +{ + HashSet<Element*>::iterator end = m_pageCacheCallbackElements.end(); + for (HashSet<Element*>::iterator i = m_pageCacheCallbackElements.begin(); i != end; ++i) + (*i)->willSaveToCache(); +} + +void Document::didRestoreFromCache() +{ + HashSet<Element*>::iterator end = m_pageCacheCallbackElements.end(); + for (HashSet<Element*>::iterator i = m_pageCacheCallbackElements.begin(); i != end; ++i) + (*i)->didRestoreFromCache(); +} + +void Document::registerForCacheCallbacks(Element* e) +{ + m_pageCacheCallbackElements.add(e); +} + +void Document::unregisterForCacheCallbacks(Element* e) +{ + m_pageCacheCallbackElements.remove(e); +} + +void Document::setShouldCreateRenderers(bool f) +{ + m_createRenderers = f; +} + +bool Document::shouldCreateRenderers() +{ + return m_createRenderers; +} + +String Document::toString() const +{ + String result; + + for (Node *child = firstChild(); child != NULL; child = child->nextSibling()) { + result += child->toString(); + } + + return result; +} + +// 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}; + 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* pastEndNode = range->pastEndNode(); + for (Node* node = range->startNode(); node != pastEndNode; 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 location. +// They do not overlap each other, as currently required by the drawing code in RenderText.cpp. + +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; + ASSERT(markers.size() == rects.size()); + size_t i; + for (i = 0; i != markers.size();) { + DocumentMarker marker = markers[i]; + + if (newMarker.endOffset < marker.startOffset+1) { + // This is the first marker that is completely after newMarker, and disjoint from it. + // We found our insertion point. + break; + } else if (newMarker.startOffset > marker.endOffset) { + // maker is before newMarker, and disjoint from it. Keep scanning. + i++; + } else if (newMarker == marker) { + // already have this one, NOP + return; + } else { + // marker and newMarker intersect or touch - merge them into newMarker + newMarker.startOffset = min(newMarker.startOffset, marker.startOffset); + newMarker.endOffset = max(newMarker.endOffset, marker.endOffset); + // remove old one, we'll add newMarker later + markers.remove(i); + rects.remove(i); + // it points to the next marker to consider + } + } + // 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, 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(); +} + +#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(void* doc) +{ + if (doc == m_transformSource) + return; + + xmlFreeDoc((xmlDocPtr)m_transformSource); + m_transformSource = doc; +} + +#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::createAttributeNS(const String &namespaceURI, const String &qualifiedName, ExceptionCode& ec) +{ + if (qualifiedName.isNull()) { + ec = NAMESPACE_ERR; + return 0; + } + + String localName = qualifiedName; + String prefix; + int colonpos; + if ((colonpos = qualifiedName.find(':')) >= 0) { + prefix = qualifiedName.substring(0, colonpos); + localName = qualifiedName.substring(colonpos + 1); + } + + if (!isValidName(localName)) { + ec = INVALID_CHARACTER_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 new Attr(0, this, new MappedAttribute(QualifiedName(prefix, localName, namespaceURI), StringImpl::empty())); +} + +#if ENABLE(SVG) +const SVGDocumentExtensions* Document::svgExtensions() +{ + return m_svgExtensions; +} + +SVGDocumentExtensions* Document::accessSVGExtensions() +{ + if (!m_svgExtensions) + m_svgExtensions = new SVGDocumentExtensions(this); + return m_svgExtensions; +} +#endif + +PassRefPtr<HTMLCollection> Document::images() +{ + return new HTMLCollection(this, HTMLCollection::DocImages); +} + +PassRefPtr<HTMLCollection> Document::applets() +{ + return new HTMLCollection(this, HTMLCollection::DocApplets); +} + +PassRefPtr<HTMLCollection> Document::embeds() +{ + return new HTMLCollection(this, HTMLCollection::DocEmbeds); +} + +PassRefPtr<HTMLCollection> Document::plugins() +{ + // This is an alias for embeds() required for the JS DOM bindings. + return new HTMLCollection(this, HTMLCollection::DocEmbeds); +} + +PassRefPtr<HTMLCollection> Document::objects() +{ + return new HTMLCollection(this, HTMLCollection::DocObjects); +} + +PassRefPtr<HTMLCollection> Document::scripts() +{ + return new HTMLCollection(this, HTMLCollection::DocScripts); +} + +PassRefPtr<HTMLCollection> Document::links() +{ + return new HTMLCollection(this, HTMLCollection::DocLinks); +} + +PassRefPtr<HTMLCollection> Document::forms() +{ + return new HTMLCollection(this, HTMLCollection::DocForms); +} + +PassRefPtr<HTMLCollection> Document::anchors() +{ + return new HTMLCollection(this, HTMLCollection::DocAnchors); +} + +PassRefPtr<HTMLCollection> Document::all() +{ + return new HTMLCollection(this, HTMLCollection::DocAll); +} + +PassRefPtr<HTMLCollection> Document::windowNamedItems(const String &name) +{ + return new HTMLNameCollection(this, HTMLCollection::WindowNamedItems, name); +} + +PassRefPtr<HTMLCollection> Document::documentNamedItems(const String &name) +{ + return new HTMLNameCollection(this, HTMLCollection::DocumentNamedItems, name); +} + +HTMLCollection::CollectionInfo* Document::nameCollectionInfo(HTMLCollection::Type type, const AtomicString& name) +{ + ASSERT(type >= HTMLCollection::FirstNamedDocumentCachedType); + unsigned index = type - HTMLCollection::FirstNamedDocumentCachedType; + ASSERT(index < HTMLCollection::NumNamedDocumentCachedTypes); + + NamedCollectionMap& map = m_nameCollectionInfo[index]; + NamedCollectionMap::iterator iter = map.find(name.impl()); + if (iter == map.end()) + iter = map.add(name.impl(), new HTMLCollection::CollectionInfo).first; + return iter->second; +} + +void Document::finishedParsing() +{ + setParsing(false); + + ExceptionCode ec = 0; + dispatchEvent(new Event(DOMContentLoadedEvent, true, false), ec); + + if (Frame* f = frame()) + f->loader()->finishedParsing(); +} + +Vector<String> Document::formElementsState() const +{ + Vector<String> stateVector; + stateVector.reserveCapacity(m_formElementsWithState.size() * 3); + typedef ListHashSet<HTMLFormControlElementWithState*>::const_iterator Iterator; + Iterator end = m_formElementsWithState.end(); + for (Iterator it = m_formElementsWithState.begin(); it != end; ++it) { + HTMLFormControlElementWithState* e = *it; + String value; + if (e->saveState(value)) { + stateVector.append(e->name().string()); + stateVector.append(e->type().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() != HashTraits<AtomicStringImpl*>::deletedValue()) + name()->ref(); + if (type()) + type()->ref(); +} + +void FormElementKey::deref() const +{ + if (name() && name() != HashTraits<AtomicStringImpl*>::deletedValue()) + 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 = PHI; + + // 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; +} + +FormElementKey FormElementKeyHashTraits::deletedValue() +{ + return HashTraits<AtomicStringImpl*>::deletedValue(); +} + + +String Document::iconURL() +{ + return m_iconURL; +} + +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; +} + +void Document::setUseSecureKeyboardEntryWhenActive(bool usesSecureKeyboard) +{ + if (m_useSecureKeyboardEntryWhenActive == usesSecureKeyboard) + return; + + m_useSecureKeyboardEntryWhenActive = usesSecureKeyboard; + m_frame->updateSecureKeyboardEntryIfActive(); +} + +bool Document::useSecureKeyboardEntryWhenActive() const +{ + return m_useSecureKeyboardEntryWhenActive; +} + +void Document::initSecurityOrigin() +{ + if (m_securityOrigin && !m_securityOrigin->isEmpty()) + return; // m_securityOrigin has already been initialized. + + m_securityOrigin = SecurityOrigin::createForFrame(m_frame); +} + +void Document::setSecurityOrigin(SecurityOrigin* securityOrigin) +{ + m_securityOrigin = securityOrigin; +} + +void Document::updateFocusAppearanceSoon() +{ + 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(false); +} + +// FF method for accessing the selection added for compatability. +DOMSelection* Document::getSelection() const +{ + return frame() ? frame()->domWindow()->getSelection() : 0; +} + +#if ENABLE(DATABASE) + +void Document::addOpenDatabase(Database* database) +{ + if (!m_openDatabaseSet) + m_openDatabaseSet.set(new DatabaseSet); + + ASSERT(!m_openDatabaseSet->contains(database)); + m_openDatabaseSet->add(database); +} + +void Document::removeOpenDatabase(Database* database) +{ + ASSERT(m_openDatabaseSet && m_openDatabaseSet->contains(database)); + if (!m_openDatabaseSet) + return; + + m_openDatabaseSet->remove(database); +} + +DatabaseThread* Document::databaseThread() +{ + if (!m_databaseThread && !m_hasOpenDatabases) { + // Create the database thread on first request - but not if at least one database was already opened, + // because in that case we already had a database thread and terminated it and should not create another. + m_databaseThread = new DatabaseThread(this); + if (!m_databaseThread->start()) + m_databaseThread = 0; + } + + return m_databaseThread.get(); +} + +void Document::stopDatabases() +{ + if (m_openDatabaseSet) { + DatabaseSet::iterator i = m_openDatabaseSet->begin(); + DatabaseSet::iterator end = m_openDatabaseSet->end(); + for (; i != end; ++i) { + (*i)->stop(); + if (m_databaseThread) + m_databaseThread->unscheduleDatabaseTasks(*i); + } + } + + if (m_databaseThread) + m_databaseThread->requestTermination(); +} + +#endif + +} // namespace WebCore |