/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* (C) 2006 Alexey Proskuryakov (ap@webkit.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
* Copyright (C) 2008, 2009 Google Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "Document.h"
#include "AXObjectCache.h"
#include "AnimationController.h"
#include "Attr.h"
#include "CDATASection.h"
#include "CSSHelper.h"
#include "CSSStyleSelector.h"
#include "CSSStyleSheet.h"
#include "CSSValueKeywords.h"
#include "CString.h"
#include "CachedCSSStyleSheet.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "Comment.h"
#include "Console.h"
#include "CookieJar.h"
#include "DOMImplementation.h"
#include "DOMWindow.h"
#include "DocLoader.h"
#include "DocumentFragment.h"
#include "DocumentLoader.h"
#include "DocumentType.h"
#include "EditingText.h"
#include "Editor.h"
#include "EntityReference.h"
#include "Event.h"
#include "EventHandler.h"
#include "EventListener.h"
#include "EventNames.h"
#include "ExceptionCode.h"
#include "FocusController.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "HTMLAllCollection.h"
#include "HTMLAnchorElement.h"
#include "HTMLBodyElement.h"
#include "HTMLCanvasElement.h"
#include "HTMLCollection.h"
#include "HTMLDocument.h"
#include "HTMLElementFactory.h"
#include "HTMLFrameOwnerElement.h"
#include "HTMLHeadElement.h"
#include "HTMLIFrameElement.h"
#include "HTMLInputElement.h"
#include "HTMLLinkElement.h"
#include "HTMLMapElement.h"
#include "HTMLNameCollection.h"
#include "HTMLNames.h"
#include "HTMLParser.h"
#include "HTMLStyleElement.h"
#include "HTMLTitleElement.h"
#include "HTTPParsers.h"
#include "HistoryItem.h"
#include "HitTestRequest.h"
#include "HitTestResult.h"
#include "ImageLoader.h"
#include "InspectorController.h"
#include "InspectorTimelineAgent.h"
#include "KeyboardEvent.h"
#include "Logging.h"
#include "MappedAttribute.h"
#include "MessageEvent.h"
#include "MouseEvent.h"
#include "MouseEventWithHitTestResults.h"
#include "MutationEvent.h"
#include "NameNodeList.h"
#include "NodeFilter.h"
#include "NodeIterator.h"
#include "NodeWithIndex.h"
#include "OverflowEvent.h"
#include "Page.h"
#include "PageGroup.h"
#include "PageTransitionEvent.h"
#include "PlatformKeyboardEvent.h"
#include "PopStateEvent.h"
#include "ProcessingInstruction.h"
#include "ProgressEvent.h"
#include "RegisteredEventListener.h"
#include "RenderArena.h"
#include "RenderTextControl.h"
#include "RenderView.h"
#include "RenderWidget.h"
#include "ScriptController.h"
#include "ScriptElement.h"
#include "ScriptEventListener.h"
#include "SecurityOrigin.h"
#include "SegmentedString.h"
#include "SelectionController.h"
#include "Settings.h"
#include "StringBuffer.h"
#include "StyleSheetList.h"
#include "TextEvent.h"
#include "TextIterator.h"
#include "TextResourceDecoder.h"
#include "Timer.h"
#include "TransformSource.h"
#include "TreeWalker.h"
#include "UIEvent.h"
#include "UserContentURLPattern.h"
#include "WebKitAnimationEvent.h"
#include "WebKitTransitionEvent.h"
#include "WheelEvent.h"
#include "XMLHttpRequest.h"
#include "XMLNSNames.h"
#include "XMLNames.h"
#include "XMLTokenizer.h"
#include "htmlediting.h"
#include <wtf/CurrentTime.h>
#include <wtf/HashFunctions.h>
#include <wtf/MainThread.h>
#include <wtf/PassRefPtr.h>
#include <wtf/StdLibExtras.h>
#if ENABLE(SHARED_WORKERS)
#include "SharedWorkerRepository.h"
#endif
#if ENABLE(DOM_STORAGE)
#include "StorageEvent.h"
#endif
#if ENABLE(XPATH)
#include "XPathEvaluator.h"
#include "XPathExpression.h"
#include "XPathNSResolver.h"
#include "XPathResult.h"
#endif
#if ENABLE(XSLT)
#include "XSLTProcessor.h"
#endif
#if ENABLE(XBL)
#include "XBLBindingManager.h"
#endif
#if ENABLE(SVG)
#include "SVGDocumentExtensions.h"
#include "SVGElementFactory.h"
#include "SVGNames.h"
#include "SVGZoomEvent.h"
#include "SVGStyleElement.h"
#endif
#if PLATFORM(ANDROID)
// FIXME: We shouldn't be including this from WebCore!
#include "WebViewCore.h"
#endif
#ifdef ANDROID_META_SUPPORT
#include "Settings.h"
#endif
#ifdef ANDROID_RESET_SELECTION
#include "CacheBuilder.h"
#include "HTMLTextAreaElement.h"
#endif
#ifdef ANDROID_INSTRUMENT
#include "TimeCounter.h"
#endif
#if ENABLE(TOUCH_EVENTS)
#include "TouchEvent.h"
#endif
#if ENABLE(WML)
#include "WMLDocument.h"
#include "WMLElement.h"
#include "WMLElementFactory.h"
#include "WMLNames.h"
#endif
#if ENABLE(MATHML)
#include "MathMLElement.h"
#include "MathMLElementFactory.h"
#include "MathMLNames.h"
#endif
#if ENABLE(XHTMLMP)
#include "HTMLNoScriptElement.h"
#endif
using namespace std;
using namespace WTF;
using namespace Unicode;
namespace WebCore {
using namespace HTMLNames;
// #define INSTRUMENT_LAYOUT_SCHEDULING 1
// This amount of time must have elapsed before we will even consider scheduling a layout without a delay.
// FIXME: For faster machines this value can really be lowered to 200. 250 is adequate, but a little high
// for dual G5s. :)
static const int cLayoutScheduleThreshold = 250;
// Use 1 to represent the document's default form.
static HTMLFormElement* const defaultForm = reinterpret_cast<HTMLFormElement*>(1);
// DOM Level 2 says (letters added):
//
// a) Name start characters must have one of the categories Ll, Lu, Lo, Lt, Nl.
// b) Name characters other than Name-start characters must have one of the categories Mc, Me, Mn, Lm, or Nd.
// c) Characters in the compatibility area (i.e. with character code greater than #xF900 and less than #xFFFE) are not allowed in XML names.
// d) Characters which have a font or compatibility decomposition (i.e. those with a "compatibility formatting tag" in field 5 of the database -- marked by field 5 beginning with a "<") are not allowed.
// e) The following characters are treated as name-start characters rather than name characters, because the property file classifies them as Alphabetic: [#x02BB-#x02C1], #x0559, #x06E5, #x06E6.
// f) Characters #x20DD-#x20E0 are excluded (in accordance with Unicode, section 5.14).
// g) Character #x00B7 is classified as an extender, because the property list so identifies it.
// h) Character #x0387 is added as a name character, because #x00B7 is its canonical equivalent.
// i) Characters ':' and '_' are allowed as name-start characters.
// j) Characters '-' and '.' are allowed as name characters.
//
// It also contains complete tables. If we decide it's better, we could include those instead of the following code.
static inline bool isValidNameStart(UChar32 c)
{
// rule (e) above
if ((c >= 0x02BB && c <= 0x02C1) || c == 0x559 || c == 0x6E5 || c == 0x6E6)
return true;
// rule (i) above
if (c == ':' || c == '_')
return true;
// rules (a) and (f) above
const uint32_t nameStartMask = Letter_Lowercase | Letter_Uppercase | Letter_Other | Letter_Titlecase | Number_Letter;
if (!(Unicode::category(c) & nameStartMask))
return false;
// rule (c) above
if (c >= 0xF900 && c < 0xFFFE)
return false;
// rule (d) above
DecompositionType decompType = decompositionType(c);
if (decompType == DecompositionFont || decompType == DecompositionCompat)
return false;
return true;
}
static inline bool isValidNamePart(UChar32 c)
{
// rules (a), (e), and (i) above
if (isValidNameStart(c))
return true;
// rules (g) and (h) above
if (c == 0x00B7 || c == 0x0387)
return true;
// rule (j) above
if (c == '-' || c == '.')
return true;
// rules (b) and (f) above
const uint32_t otherNamePartMask = Mark_NonSpacing | Mark_Enclosing | Mark_SpacingCombining | Letter_Modifier | Number_DecimalDigit;
if (!(Unicode::category(c) & otherNamePartMask))
return false;
// rule (c) above
if (c >= 0xF900 && c < 0xFFFE)
return false;
// rule (d) above
DecompositionType decompType = decompositionType(c);
if (decompType == DecompositionFont || decompType == DecompositionCompat)
return false;
return true;
}
static Widget* widgetForNode(Node* focusedNode)
{
if (!focusedNode)
return 0;
RenderObject* renderer = focusedNode->renderer();
if (!renderer || !renderer->isWidget())
return 0;
return toRenderWidget(renderer)->widget();
}
static bool acceptsEditingFocus(Node *node)
{
ASSERT(node);
ASSERT(node->isContentEditable());
Node *root = node->rootEditableElement();
Frame* frame = node->document()->frame();
if (!frame || !root)
return false;
return frame->editor()->shouldBeginEditing(rangeOfContents(root).get());
}
static bool disableRangeMutation(Page* page)
{
#if PLATFORM(MAC)
// Disable Range mutation on document modifications in Tiger and Leopard Mail
// See <rdar://problem/5865171>
return page && (page->settings()->needsLeopardMailQuirks() || page->settings()->needsTigerMailQuirks());
#else
return false;
#endif
}
static HashSet<Document*>* documentsThatNeedStyleRecalc = 0;
class DocumentWeakReference : public ThreadSafeShared<DocumentWeakReference> {
public:
static PassRefPtr<DocumentWeakReference> create(Document* document)
{
return adoptRef(new DocumentWeakReference(document));
}
Document* document()
{
ASSERT(isMainThread());
return m_document;
}
void clear()
{
ASSERT(isMainThread());
m_document = 0;
}
private:
DocumentWeakReference(Document* document)
: m_document(document)
{
ASSERT(isMainThread());
}
Document* m_document;
};
Document::Document(Frame* frame, bool isXHTML, bool isHTML)
: ContainerNode(0)
, m_domtree_version(0)
, m_styleSheets(StyleSheetList::create(this))
, m_styleRecalcTimer(this, &Document::styleRecalcTimerFired)
, m_frameElementsShouldIgnoreScrolling(false)
, m_containsValidityStyleRules(false)
, m_updateFocusAppearanceRestoresSelection(false)
, m_title("")
, m_rawTitle("")
, m_titleSetExplicitly(false)
, m_updateFocusAppearanceTimer(this, &Document::updateFocusAppearanceTimerFired)
, m_startTime(currentTime())
, m_overMinimumLayoutThreshold(false)
, m_extraLayoutDelay(0)
, m_executeScriptSoonTimer(this, &Document::executeScriptSoonTimerFired)
, m_xmlVersion("1.0")
, m_xmlStandalone(false)
#if ENABLE(XBL)
, m_bindingManager(new XBLBindingManager(this))
#endif
, m_savedRenderer(0)
, m_designMode(inherit)
, m_selfOnlyRefCount(0)
#if ENABLE(SVG)
, m_svgExtensions(0)
#endif
#if ENABLE(DASHBOARD_SUPPORT)
, m_hasDashboardRegions(false)
, m_dashboardRegionsDirty(false)
#endif
, m_accessKeyMapValid(false)
, m_createRenderers(true)
, m_inPageCache(false)
, m_useSecureKeyboardEntryWhenActive(false)
, m_isXHTML(isXHTML)
, m_isHTML(isHTML)
, m_numNodeListCaches(0)
#if USE(JSC)
, m_normalWorldWrapperCache(0)
#endif
, m_usingGeolocation(false)
, m_storageEventTimer(this, &Document::storageEventTimerFired)
#if ENABLE(WML)
, m_containsWMLContent(false)
#endif
, m_weakReference(DocumentWeakReference::create(this))
{
m_document = this;
m_pageGroupUserSheetCacheValid = false;
m_printing = false;
m_ignoreAutofocus = false;
m_frame = frame;
#if !PLATFORM(ANDROID)
m_axObjectCache = 0;
#endif
m_docLoader = new DocLoader(this);
m_visuallyOrdered = false;
m_bParsing = false;
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_usesBeforeAfterRules = false;
m_usesRemUnits = false;
m_gotoAnchorNeededAfterStylesheetsLoad = false;
m_didCalculateStyleSelector = false;
m_pendingStylesheets = 0;
m_ignorePendingStylesheets = false;
m_hasNodesWithPlaceholderStyle = false;
m_pendingSheetLayout = NoLayoutWithPendingSheets;
m_cssTarget = 0;
resetLinkColor();
resetVisitedLinkColor();
resetActiveLinkColor();
m_processingLoadEvent = false;
initSecurityContext();
initDNSPrefetch();
static int docID = 0;
m_docID = docID++;
#if ENABLE(XHTMLMP)
m_shouldProcessNoScriptElement = settings() && !settings()->isJavaScriptEnabled();
#endif
}
void Document::removedLastRef()
{
ASSERT(!m_deletionHasBegun);
if (m_selfOnlyRefCount) {
// If removing a child removes the last self-only ref, we don't
// want the document to be destructed until after
// removeAllChildren returns, so we guard ourselves with an
// extra self-only ref.
selfOnlyRef();
// We must make sure not to be retaining any of our children through
// these extra pointers or we will create a reference cycle.
m_docType = 0;
m_focusedNode = 0;
m_hoverNode = 0;
m_activeNode = 0;
m_titleElement = 0;
m_documentElement = 0;
// removeAllChildren() doesn't always unregister IDs, do it upfront to avoid having stale references in the map.
m_elementsById.clear();
removeAllChildren();
deleteAllValues(m_markers);
m_markers.clear();
m_tokenizer.clear();
m_cssCanvasElements.clear();
#ifndef NDEBUG
m_inRemovedLastRefFunction = false;
#endif
selfOnlyDeref();
} else {
#ifndef NDEBUG
m_deletionHasBegun = true;
#endif
delete this;
}
}
Document::~Document()
{
ASSERT(!renderer());
ASSERT(!m_inPageCache);
ASSERT(!m_savedRenderer);
ASSERT(m_ranges.isEmpty());
ASSERT(!m_styleRecalcTimer.isActive());
for (size_t i = 0; i < m_scriptsToExecuteSoon.size(); ++i)
m_scriptsToExecuteSoon[i].first->element()->deref(); // Balances ref() in executeScriptSoon().
removeAllEventListeners();
#if USE(JSC)
forgetAllDOMNodesForDocument(this);
#endif
m_tokenizer.clear();
m_document = 0;
m_docLoader.clear();
m_renderArena.clear();
#if ENABLE(XBL)
m_bindingManager.clear();
#endif
deleteAllValues(m_markers);
clearAXObjectCache();
m_decoder = 0;
unsigned count = sizeof(m_nameCollectionInfo) / sizeof(m_nameCollectionInfo[0]);
for (unsigned i = 0; i < count; i++)
deleteAllValues(m_nameCollectionInfo[i]);
if (m_styleSheets)
m_styleSheets->documentDestroyed();
m_weakReference->clear();
}
#if USE(JSC)
Document::JSWrapperCache* Document::createWrapperCache(DOMWrapperWorld* world)
{
JSWrapperCache* wrapperCache = new JSWrapperCache();
m_wrapperCacheMap.set(world, wrapperCache);
if (world->isNormal()) {
ASSERT(!m_normalWorldWrapperCache);
m_normalWorldWrapperCache = wrapperCache;
}
world->rememberDocument(this);
return wrapperCache;
}
#endif
void Document::resetLinkColor()
{
m_linkColor = Color(0, 0, 238);
}
void Document::resetVisitedLinkColor()
{
m_visitedLinkColor = Color(85, 26, 139);
}
void Document::resetActiveLinkColor()
{
m_activeLinkColor.setNamedColor("red");
}
void Document::setDocType(PassRefPtr<DocumentType> docType)
{
// This should never be called more than once.
// Note: This is not a public DOM method and can only be called by the parser.
ASSERT(!m_docType || !docType);
if (m_docType && docType)
return;
m_docType = docType;
if (m_docType)
m_docType->setDocument(this);
#ifdef ANDROID_META_SUPPORT
if (m_docType && !ownerElement()
&& m_docType->publicId().startsWith("-//wapforum//dtd xhtml mobile 1.", false)) {
// fit mobile sites directly in the screen
if (Frame *f = frame())
f->settings()->setMetadataSettings("width", "device-width");
if (FrameView* frameView = view())
android::WebViewCore::getWebViewCore(frameView)->updateViewport();
}
#endif
determineParseMode();
}
DOMImplementation* Document::implementation() const
{
if (!m_implementation)
m_implementation = DOMImplementation::create();
return m_implementation.get();
}
void Document::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
ContainerNode::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
// Invalidate the document element we have cached in case it was replaced.
m_documentElement = 0;
}
void Document::cacheDocumentElement() const
{
ASSERT(!m_documentElement);
Node* n = firstChild();
while (n && !n->isElementNode())
n = n->nextSibling();
m_documentElement = static_cast<Element*>(n);
}
PassRefPtr<Element> Document::createElement(const AtomicString& name, ExceptionCode& ec)
{
if (!isValidName(name)) {
ec = INVALID_CHARACTER_ERR;
return 0;
}
if (m_isXHTML)
return HTMLElementFactory::createHTMLElement(QualifiedName(nullAtom, name, xhtmlNamespaceURI), this, 0, false);
return createElement(QualifiedName(nullAtom, name, nullAtom), false);
}
PassRefPtr<DocumentFragment> Document::createDocumentFragment()
{
return DocumentFragment::create(document());
}
PassRefPtr<Text> Document::createTextNode(const String& data)
{
return Text::create(this, data);
}
PassRefPtr<Comment> Document::createComment(const String& data)
{
return Comment::create(this, data);
}
PassRefPtr<CDATASection> Document::createCDATASection(const String& data, ExceptionCode& ec)
{
if (isHTMLDocument()) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
return CDATASection::create(this, data);
}
PassRefPtr<ProcessingInstruction> Document::createProcessingInstruction(const String& target, const String& data, ExceptionCode& ec)
{
if (!isValidName(target)) {
ec = INVALID_CHARACTER_ERR;
return 0;
}
if (isHTMLDocument()) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
return ProcessingInstruction::create(this, target, data);
}
PassRefPtr<EntityReference> Document::createEntityReference(const String& name, ExceptionCode& ec)
{
if (!isValidName(name)) {
ec = INVALID_CHARACTER_ERR;
return 0;
}
if (isHTMLDocument()) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
return EntityReference::create(this, name);
}
PassRefPtr<EditingText> Document::createEditingTextNode(const String& text)
{
return EditingText::create(this, text);
}
PassRefPtr<CSSStyleDeclaration> Document::createCSSStyleDeclaration()
{
return CSSMutableStyleDeclaration::create();
}
PassRefPtr<Node> Document::importNode(Node* importedNode, bool deep, ExceptionCode& ec)
{
ec = 0;
if (!importedNode
#if ENABLE(SVG) && ENABLE(DASHBOARD_SUPPORT)
|| (importedNode->isSVGElement() && page() && page()->settings()->usesDashboardBackwardCompatibilityMode())
#endif
) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
switch (importedNode->nodeType()) {
case TEXT_NODE:
return createTextNode(importedNode->nodeValue());
case CDATA_SECTION_NODE:
return createCDATASection(importedNode->nodeValue(), ec);
case ENTITY_REFERENCE_NODE:
return createEntityReference(importedNode->nodeName(), ec);
case PROCESSING_INSTRUCTION_NODE:
return createProcessingInstruction(importedNode->nodeName(), importedNode->nodeValue(), ec);
case COMMENT_NODE:
return createComment(importedNode->nodeValue());
case ELEMENT_NODE: {
Element* oldElement = static_cast<Element*>(importedNode);
RefPtr<Element> newElement = createElementNS(oldElement->namespaceURI(), oldElement->tagQName().toString(), ec);
if (ec)
return 0;
NamedNodeMap* attrs = oldElement->attributes(true);
if (attrs) {
unsigned length = attrs->length();
for (unsigned i = 0; i < length; i++) {
Attribute* attr = attrs->attributeItem(i);
newElement->setAttribute(attr->name(), attr->value().impl(), ec);
if (ec)
return 0;
}
}
newElement->copyNonAttributeProperties(oldElement);
if (deep) {
for (Node* oldChild = oldElement->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
RefPtr<Node> newChild = importNode(oldChild, true, ec);
if (ec)
return 0;
newElement->appendChild(newChild.release(), ec);
if (ec)
return 0;
}
}
return newElement.release();
}
case ATTRIBUTE_NODE:
return Attr::create(0, this, static_cast<Attr*>(importedNode)->attr()->clone());
case DOCUMENT_FRAGMENT_NODE: {
DocumentFragment* oldFragment = static_cast<DocumentFragment*>(importedNode);
RefPtr<DocumentFragment> newFragment = createDocumentFragment();
if (deep) {
for (Node* oldChild = oldFragment->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
RefPtr<Node> newChild = importNode(oldChild, true, ec);
if (ec)
return 0;
newFragment->appendChild(newChild.release(), ec);
if (ec)
return 0;
}
}
return newFragment.release();
}
case ENTITY_NODE:
case NOTATION_NODE:
// FIXME: It should be possible to import these node types, however in DOM3 the DocumentType is readonly, so there isn't much sense in doing that.
// Ability to add these imported nodes to a DocumentType will be considered for addition to a future release of the DOM.
case DOCUMENT_NODE:
case DOCUMENT_TYPE_NODE:
case XPATH_NAMESPACE_NODE:
break;
}
ec = NOT_SUPPORTED_ERR;
return 0;
}
PassRefPtr<Node> Document::adoptNode(PassRefPtr<Node> source, ExceptionCode& ec)
{
if (!source) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
if (source->isReadOnlyNode()) {
ec = NO_MODIFICATION_ALLOWED_ERR;
return 0;
}
switch (source->nodeType()) {
case ENTITY_NODE:
case NOTATION_NODE:
case DOCUMENT_NODE:
case DOCUMENT_TYPE_NODE:
case XPATH_NAMESPACE_NODE:
ec = NOT_SUPPORTED_ERR;
return 0;
case ATTRIBUTE_NODE: {
Attr* attr = static_cast<Attr*>(source.get());
if (attr->ownerElement())
attr->ownerElement()->removeAttributeNode(attr, ec);
attr->setSpecified(true);
break;
}
default:
if (source->hasTagName(iframeTag))
static_cast<HTMLIFrameElement*>(source.get())->setRemainsAliveOnRemovalFromTree(attached());
if (source->parentNode())
source->parentNode()->removeChild(source.get(), ec);
}
for (Node* node = source.get(); node; node = node->traverseNextNode(source.get()))
node->setDocument(this);
return source;
}
bool Document::hasPrefixNamespaceMismatch(const QualifiedName& qName)
{
// These checks are from DOM Core Level 2, createElementNS
// http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrElNS
if (!qName.prefix().isEmpty() && qName.namespaceURI().isNull()) // createElementNS(null, "html:div")
return true;
if (qName.prefix() == xmlAtom && qName.namespaceURI() != XMLNames::xmlNamespaceURI) // createElementNS("http://www.example.com", "xml:lang")
return true;
// Required by DOM Level 3 Core and unspecified by DOM Level 2 Core:
// http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#ID-DocCrElNS
// createElementNS("http://www.w3.org/2000/xmlns/", "foo:bar"), createElementNS(null, "xmlns:bar")
if ((qName.prefix() == xmlnsAtom && qName.namespaceURI() != XMLNSNames::xmlnsNamespaceURI) || (qName.prefix() != xmlnsAtom && qName.namespaceURI() == XMLNSNames::xmlnsNamespaceURI))
return true;
return false;
}
// FIXME: This should really be in a possible ElementFactory class
PassRefPtr<Element> Document::createElement(const QualifiedName& qName, bool createdByParser)
{
RefPtr<Element> e;
// FIXME: Use registered namespaces and look up in a hash to find the right factory.
if (qName.namespaceURI() == xhtmlNamespaceURI)
e = HTMLElementFactory::createHTMLElement(qName, this, 0, createdByParser);
#if ENABLE(SVG)
else if (qName.namespaceURI() == SVGNames::svgNamespaceURI)
e = SVGElementFactory::createSVGElement(qName, this, createdByParser);
#endif
#if ENABLE(WML)
else if (qName.namespaceURI() == WMLNames::wmlNamespaceURI)
e = WMLElementFactory::createWMLElement(qName, this, createdByParser);
else if (isWMLDocument())
e = WMLElementFactory::createWMLElement(QualifiedName(nullAtom, qName.localName(), WMLNames::wmlNamespaceURI), this, createdByParser);
#endif
#if ENABLE(MATHML)
else if (qName.namespaceURI() == MathMLNames::mathmlNamespaceURI)
e = MathMLElementFactory::createMathMLElement(qName, this, createdByParser);
#endif
if (!e)
e = Element::create(qName, document());
// <image> uses imgTag so we need a special rule.
#if ENABLE(WML)
if (!isWMLDocument())
#endif
ASSERT((qName.matches(imageTag) && e->tagQName().matches(imgTag) && e->tagQName().prefix() == qName.prefix()) || qName == e->tagQName());
return e.release();
}
PassRefPtr<Element> Document::createElementNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode& ec)
{
String prefix, localName;
if (!parseQualifiedName(qualifiedName, prefix, localName, ec))
return 0;
QualifiedName qName(prefix, localName, namespaceURI);
if (hasPrefixNamespaceMismatch(qName)) {
ec = NAMESPACE_ERR;
return 0;
}
return createElement(qName, false);
}
Element* Document::getElementById(const AtomicString& elementId) const
{
if (elementId.isEmpty())
return 0;
m_elementsById.checkConsistency();
Element* element = m_elementsById.get(elementId.impl());
if (element)
return element;
if (m_duplicateIds.contains(elementId.impl())) {
// We know there's at least one node with this id, but we don't know what the first one is.
for (Node *n = traverseNextNode(); n != 0; n = n->traverseNextNode()) {
if (n->isElementNode()) {
element = static_cast<Element*>(n);
if (element->hasID() && element->getAttribute(element->idAttributeName()) == elementId) {
m_duplicateIds.remove(elementId.impl());
m_elementsById.set(elementId.impl(), element);
return element;
}
}
}
ASSERT_NOT_REACHED();
}
return 0;
}
String Document::readyState() const
{
if (Frame* f = frame()) {
if (f->loader()->isComplete())
return "complete";
if (parsing())
return "loading";
return "loaded";
// FIXME: What does "interactive" mean?
// FIXME: Missing support for "uninitialized".
}
return String();
}
String Document::encoding() const
{
if (TextResourceDecoder* d = decoder())
return d->encoding().domName();
return String();
}
String Document::defaultCharset() const
{
if (Settings* settings = this->settings())
return settings->defaultTextEncodingName();
return String();
}
void Document::setCharset(const String& charset)
{
if (!decoder())
return;
decoder()->setEncoding(charset, TextResourceDecoder::UserChosenEncoding);
}
void Document::setXMLVersion(const String& version, ExceptionCode& ec)
{
if (!implementation()->hasFeature("XML", String())) {
ec = NOT_SUPPORTED_ERR;
return;
}
// FIXME: Also raise NOT_SUPPORTED_ERR if the version is set to a value that is not supported by this Document.
m_xmlVersion = version;
}
void Document::setXMLStandalone(bool standalone, ExceptionCode& ec)
{
if (!implementation()->hasFeature("XML", String())) {
ec = NOT_SUPPORTED_ERR;
return;
}
m_xmlStandalone = standalone;
}
void Document::setDocumentURI(const String& uri)
{
m_documentURI = uri;
updateBaseURL();
}
KURL Document::baseURI() const
{
return m_baseURL;
}
Element* Document::elementFromPoint(int x, int y) const
{
// FIXME: Share code between this and caretRangeFromPoint.
if (!renderer())
return 0;
Frame* frame = this->frame();
if (!frame)
return 0;
FrameView* frameView = frame->view();
if (!frameView)
return 0;
float zoomFactor = frame->pageZoomFactor();
IntPoint point = roundedIntPoint(FloatPoint(x * zoomFactor + view()->scrollX(), y * zoomFactor + view()->scrollY()));
if (!frameView->visibleContentRect().contains(point))
return 0;
HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
HitTestResult result(point);
renderView()->layer()->hitTest(request, result);
Node* n = result.innerNode();
while (n && !n->isElementNode())
n = n->parentNode();
if (n)
n = n->shadowAncestorNode();
return static_cast<Element*>(n);
}
PassRefPtr<Range> Document::caretRangeFromPoint(int x, int y)
{
// FIXME: Share code between this and elementFromPoint.
if (!renderer())
return 0;
Frame* frame = this->frame();
if (!frame)
return 0;
FrameView* frameView = frame->view();
if (!frameView)
return 0;
float zoomFactor = frame->pageZoomFactor();
IntPoint point = roundedIntPoint(FloatPoint(x * zoomFactor + view()->scrollX(), y * zoomFactor + view()->scrollY()));
if (!frameView->visibleContentRect().contains(point))
return 0;
HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
HitTestResult result(point);
renderView()->layer()->hitTest(request, result);
Node* node = result.innerNode();
if (!node)
return 0;
Node* shadowAncestorNode = node->shadowAncestorNode();
if (shadowAncestorNode != node) {
unsigned offset = shadowAncestorNode->nodeIndex();
Node* container = shadowAncestorNode->parentNode();
return Range::create(this, container, offset, container, offset);
}
RenderObject* renderer = node->renderer();
if (!renderer)
return 0;
VisiblePosition visiblePosition = renderer->positionForPoint(result.localPoint());
if (visiblePosition.isNull())
return 0;
Position rangeCompliantPosition = rangeCompliantEquivalent(visiblePosition);
return Range::create(this, rangeCompliantPosition, rangeCompliantPosition);
}
void Document::addElementById(const AtomicString& elementId, Element* element)
{
typedef HashMap<AtomicStringImpl*, Element*>::iterator iterator;
if (!m_duplicateIds.contains(elementId.impl())) {
// Fast path. The ID is not already in m_duplicateIds, so we assume that it's
// also not already in m_elementsById and do an add. If that add succeeds, we're done.
pair<iterator, bool> addResult = m_elementsById.add(elementId.impl(), element);
if (addResult.second)
return;
// The add failed, so this ID was already cached in m_elementsById.
// There are multiple elements with this ID. Remove the m_elementsById
// cache for this ID so getElementById searches for it next time it is called.
m_elementsById.remove(addResult.first);
m_duplicateIds.add(elementId.impl());
} else {
// There are multiple elements with this ID. If it exists, remove the m_elementsById
// cache for this ID so getElementById searches for it next time it is called.
iterator cachedItem = m_elementsById.find(elementId.impl());
if (cachedItem != m_elementsById.end()) {
m_elementsById.remove(cachedItem);
m_duplicateIds.add(elementId.impl());
}
}
m_duplicateIds.add(elementId.impl());
}
void Document::removeElementById(const AtomicString& elementId, Element* element)
{
m_elementsById.checkConsistency();
if (m_elementsById.get(elementId.impl()) == element)
m_elementsById.remove(elementId.impl());
else
m_duplicateIds.remove(elementId.impl());
}
Element* Document::getElementByAccessKey(const String& key) const
{
if (key.isEmpty())
return 0;
if (!m_accessKeyMapValid) {
for (Node* n = firstChild(); n; n = n->traverseNextNode()) {
if (!n->isElementNode())
continue;
Element* element = static_cast<Element*>(n);
const AtomicString& accessKey = element->getAttribute(accesskeyAttr);
if (!accessKey.isEmpty())
m_elementsByAccessKey.set(accessKey.impl(), element);
}
m_accessKeyMapValid = true;
}
return m_elementsByAccessKey.get(key.impl());
}
/*
* Performs three operations:
* 1. Convert control characters to spaces
* 2. Trim leading and trailing spaces
* 3. Collapse internal whitespace.
*/
static inline String canonicalizedTitle(Document* document, const String& title)
{
const UChar* characters = title.characters();
unsigned length = title.length();
unsigned i;
StringBuffer buffer(length);
unsigned builderIndex = 0;
// Skip leading spaces and leading characters that would convert to spaces
for (i = 0; i < length; ++i) {
UChar c = characters[i];
if (!(c <= 0x20 || c == 0x7F))
break;
}
if (i == length)
return "";
// Replace control characters with spaces, and backslashes with currency symbols, and collapse whitespace.
bool previousCharWasWS = false;
for (; i < length; ++i) {
UChar c = characters[i];
if (c <= 0x20 || c == 0x7F || (WTF::Unicode::category(c) & (WTF::Unicode::Separator_Line | WTF::Unicode::Separator_Paragraph))) {
if (previousCharWasWS)
continue;
buffer[builderIndex++] = ' ';
previousCharWasWS = true;
} else {
buffer[builderIndex++] = c;
previousCharWasWS = false;
}
}
// Strip trailing spaces
while (builderIndex > 0) {
--builderIndex;
if (buffer[builderIndex] != ' ')
break;
}
if (!builderIndex && buffer[builderIndex] == ' ')
return "";
buffer.shrink(builderIndex + 1);
// Replace the backslashes with currency symbols if the encoding requires it.
document->displayBufferModifiedByEncoding(buffer.characters(), buffer.length());
return String::adopt(buffer);
}
void Document::updateTitle()
{
m_title = canonicalizedTitle(this, m_rawTitle);
if (Frame* f = frame())
f->loader()->setTitle(m_title);
}
void Document::setTitle(const String& title, Element* titleElement)
{
if (!titleElement) {
// Title set by JavaScript -- overrides any title elements.
m_titleSetExplicitly = true;
if (!isHTMLDocument())
m_titleElement = 0;
else if (!m_titleElement) {
if (HTMLElement* headElement = head()) {
m_titleElement = createElement(titleTag, false);
ExceptionCode ec = 0;
headElement->appendChild(m_titleElement, ec);
ASSERT(!ec);
}
}
} else if (titleElement != m_titleElement) {
if (m_titleElement || m_titleSetExplicitly)
// Only allow the first title element to change the title -- others have no effect.
return;
m_titleElement = titleElement;
}
if (m_rawTitle == title)
return;
m_rawTitle = title;
updateTitle();
if (m_titleSetExplicitly && m_titleElement && m_titleElement->hasTagName(titleTag))
static_cast<HTMLTitleElement*>(m_titleElement.get())->setText(m_title);
}
void Document::removeTitle(Element* titleElement)
{
if (m_titleElement != titleElement)
return;
m_titleElement = 0;
m_titleSetExplicitly = false;
// Update title based on first title element in the head, if one exists.
if (HTMLElement* headElement = head()) {
for (Node* e = headElement->firstChild(); e; e = e->nextSibling())
if (e->hasTagName(titleTag)) {
HTMLTitleElement* titleElement = static_cast<HTMLTitleElement*>(e);
setTitle(titleElement->text(), titleElement);
break;
}
}
if (!m_titleElement && !m_rawTitle.isEmpty()) {
m_rawTitle = "";
updateTitle();
}
}
String Document::nodeName() const
{
return "#document";
}
Node::NodeType Document::nodeType() const
{
return DOCUMENT_NODE;
}
FrameView* Document::view() const
{
return m_frame ? m_frame->view() : 0;
}
Page* Document::page() const
{
return m_frame ? m_frame->page() : 0;
}
Settings* Document::settings() const
{
return m_frame ? m_frame->settings() : 0;
}
PassRefPtr<Range> Document::createRange()
{
return Range::create(this);
}
PassRefPtr<NodeIterator> Document::createNodeIterator(Node* root, unsigned whatToShow,
PassRefPtr<NodeFilter> filter, bool expandEntityReferences, ExceptionCode& ec)
{
if (!root) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
return NodeIterator::create(root, whatToShow, filter, expandEntityReferences);
}
PassRefPtr<TreeWalker> Document::createTreeWalker(Node *root, unsigned whatToShow,
PassRefPtr<NodeFilter> filter, bool expandEntityReferences, ExceptionCode& ec)
{
if (!root) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
return TreeWalker::create(root, whatToShow, filter, expandEntityReferences);
}
void Document::scheduleStyleRecalc()
{
if (m_styleRecalcTimer.isActive() || inPageCache())
return;
ASSERT(childNeedsStyleRecalc());
if (!documentsThatNeedStyleRecalc)
documentsThatNeedStyleRecalc = new HashSet<Document*>;
documentsThatNeedStyleRecalc->add(this);
// FIXME: Why on earth is this here? This is clearly misplaced.
if (m_accessKeyMapValid) {
m_accessKeyMapValid = false;
m_elementsByAccessKey.clear();
}
m_styleRecalcTimer.startOneShot(0);
}
void Document::unscheduleStyleRecalc()
{
ASSERT(!childNeedsStyleRecalc());
if (documentsThatNeedStyleRecalc)
documentsThatNeedStyleRecalc->remove(this);
m_styleRecalcTimer.stop();
}
void Document::styleRecalcTimerFired(Timer<Document>*)
{
updateStyleIfNeeded();
}
bool Document::childNeedsAndNotInStyleRecalc()
{
return childNeedsStyleRecalc() && !m_inStyleRecalc;
}
void Document::recalcStyle(StyleChange change)
{
// we should not enter style recalc while painting
if (view() && view()->isPainting()) {
ASSERT(!view()->isPainting());
return;
}
if (m_inStyleRecalc)
return; // Guard against re-entrancy. -dwh
#if ENABLE(INSPECTOR)
if (InspectorTimelineAgent* timelineAgent = inspectorTimelineAgent())
timelineAgent->willRecalculateStyle();
#endif
m_inStyleRecalc = true;
suspendPostAttachCallbacks();
RenderWidget::suspendWidgetHierarchyUpdates();
if (view())
view()->pauseScheduledEvents();
#ifdef ANDROID_INSTRUMENT
android::TimeCounter::start(android::TimeCounter::CalculateStyleTimeCounter);
#endif
ASSERT(!renderer() || renderArena());
if (!renderer() || !renderArena())
goto bail_out;
if (change == Force) {
// style selector may set this again during recalc
m_hasNodesWithPlaceholderStyle = false;
RefPtr<RenderStyle> documentStyle = CSSStyleSelector::styleForDocument(this);
StyleChange ch = diff(documentStyle.get(), renderer()->style());
if (renderer() && ch != NoChange)
renderer()->setStyle(documentStyle.release());
}
for (Node* n = firstChild(); n; n = n->nextSibling())
if (change >= Inherit || n->childNeedsStyleRecalc() || n->needsStyleRecalc())
n->recalcStyle(change);
#ifdef ANDROID_INSTRUMENT
android::TimeCounter::record(android::TimeCounter::CalculateStyleTimeCounter, __FUNCTION__);
#endif
#if USE(ACCELERATED_COMPOSITING)
if (view()) {
bool layoutPending = view()->layoutPending() || renderer()->needsLayout();
// If we didn't update compositing layers because of layout(), we need to do so here.
if (!layoutPending)
view()->updateCompositingLayers();
}
#endif
bail_out:
setNeedsStyleRecalc(NoStyleChange);
setChildNeedsStyleRecalc(false);
unscheduleStyleRecalc();
if (view())
view()->resumeScheduledEvents();
RenderWidget::resumeWidgetHierarchyUpdates();
resumePostAttachCallbacks();
m_inStyleRecalc = false;
// If we wanted to call implicitClose() during recalcStyle, do so now that we're finished.
if (m_closeAfterStyleRecalc) {
m_closeAfterStyleRecalc = false;
implicitClose();
}
#if ENABLE(INSPECTOR)
if (InspectorTimelineAgent* timelineAgent = inspectorTimelineAgent())
timelineAgent->didRecalculateStyle();
#endif
}
void Document::updateStyleIfNeeded()
{
if (!childNeedsStyleRecalc() || inPageCache())
return;
if (m_frame)
m_frame->animation()->beginAnimationUpdate();
recalcStyle(NoChange);
// Tell the animation controller that updateStyleIfNeeded is finished and it can do any post-processing
if (m_frame)
m_frame->animation()->endAnimationUpdate();
}
void Document::updateStyleForAllDocuments()
{
if (!documentsThatNeedStyleRecalc)
return;
while (documentsThatNeedStyleRecalc->size()) {
HashSet<Document*>::iterator it = documentsThatNeedStyleRecalc->begin();
Document* doc = *it;
documentsThatNeedStyleRecalc->remove(doc);
ASSERT(doc->childNeedsStyleRecalc() && !doc->inPageCache());
doc->updateStyleIfNeeded();
}
}
void Document::updateLayout()
{
if (Element* oe = ownerElement())
oe->document()->updateLayout();
updateStyleIfNeeded();
// Only do a layout if changes have occurred that make it necessary.
FrameView* v = view();
if (v && renderer() && (v->layoutPending() || renderer()->needsLayout()))
v->layout();
}
// FIXME: This is a bad idea and needs to be removed eventually.
// Other browsers load stylesheets before they continue parsing the web page.
// Since we don't, we can run JavaScript code that needs answers before the
// stylesheets are loaded. Doing a layout ignoring the pending stylesheets
// lets us get reasonable answers. The long term solution to this problem is
// to instead suspend JavaScript execution.
void Document::updateLayoutIgnorePendingStylesheets()
{
bool oldIgnore = m_ignorePendingStylesheets;
if (!haveStylesheetsLoaded()) {
m_ignorePendingStylesheets = true;
// FIXME: We are willing to attempt to suppress painting with outdated style info only once. Our assumption is that it would be
// dangerous to try to stop it a second time, after page content has already been loaded and displayed
// with accurate style information. (Our suppression involves blanking the whole page at the
// moment. If it were more refined, we might be able to do something better.)
// It's worth noting though that this entire method is a hack, since what we really want to do is
// suspend JS instead of doing a layout with inaccurate information.
if (body() && !body()->renderer() && m_pendingSheetLayout == NoLayoutWithPendingSheets) {
m_pendingSheetLayout = DidLayoutWithPendingSheets;
updateStyleSelector();
} else if (m_hasNodesWithPlaceholderStyle)
// If new nodes have been added or style recalc has been done with style sheets still pending, some nodes
// may not have had their real style calculated yet. Normally this gets cleaned when style sheets arrive
// but here we need up-to-date style immediately.
recalcStyle(Force);
}
updateLayout();
m_ignorePendingStylesheets = oldIgnore;
}
void Document::createStyleSelector()
{
bool matchAuthorAndUserStyles = true;
if (Settings* docSettings = settings())
matchAuthorAndUserStyles = docSettings->authorAndUserStylesEnabled();
m_styleSelector.set(new CSSStyleSelector(this, m_styleSheets.get(), m_mappedElementSheet.get(), pageUserSheet(), pageGroupUserSheets(),
!inCompatMode(), matchAuthorAndUserStyles));
}
void Document::attach()
{
ASSERT(!attached());
ASSERT(!m_inPageCache);
#if !PLATFORM(ANDROID)
ASSERT(!m_axObjectCache);
#endif
if (!m_renderArena)
m_renderArena = new RenderArena();
// Create the rendering tree
setRenderer(new (m_renderArena.get()) RenderView(this, view()));
#if USE(ACCELERATED_COMPOSITING)
renderView()->didMoveOnscreen();
#endif
recalcStyle(Force);
RenderObject* render = renderer();
setRenderer(0);
ContainerNode::attach();
setRenderer(render);
}
void Document::detach()
{
ASSERT(attached());
ASSERT(!m_inPageCache);
clearAXObjectCache();
stopActiveDOMObjects();
RenderObject* render = renderer();
// Send out documentWillBecomeInactive() notifications to registered elements,
// in order to stop media elements
documentWillBecomeInactive();
#if ENABLE(SHARED_WORKERS)
SharedWorkerRepository::documentDetached(this);
#endif
if (m_frame) {
FrameView* view = m_frame->view();
if (view)
view->detachCustomScrollbars();
}
// indicate destruction mode, i.e. attached() but renderer == 0
setRenderer(0);
m_hoverNode = 0;
m_focusedNode = 0;
m_activeNode = 0;
ContainerNode::detach();
unscheduleStyleRecalc();
if (render)
render->destroy();
// This is required, as our Frame might delete itself as soon as it detaches
// us. However, this violates Node::detach() semantics, as it's never
// possible to re-attach. Eventually Document::detach() should be renamed,
// or this setting of the frame to 0 could be made explicit in each of the
// callers of Document::detach().
m_frame = 0;
m_renderArena.clear();
}
void Document::removeAllEventListeners()
{
#if ENABLE(TOUCH_EVENTS)
Page* ownerPage = page();
if (!m_inPageCache && ownerPage && (m_frame == ownerPage->mainFrame()) && hasListenerType(Document::TOUCH_LISTENER)) {
// Inform the Chrome Client that it no longer needs to forward touch
// events to WebCore as the document removes all the event listeners.
ownerPage->chrome()->client()->needTouchEvents(false);
}
#endif
EventTarget::removeAllEventListeners();
if (DOMWindow* domWindow = this->domWindow())
domWindow->removeAllEventListeners();
for (Node* node = firstChild(); node; node = node->traverseNextNode())
node->removeAllEventListeners();
}
RenderView* Document::renderView() const
{
return toRenderView(renderer());
}
void Document::clearAXObjectCache()
{
#if PLATFORM(ANDROID)
return;
#else
// clear cache in top document
if (m_axObjectCache) {
delete m_axObjectCache;
m_axObjectCache = 0;
return;
}
// ask the top-level document to clear its cache
Document* doc = topDocument();
if (doc != this)
doc->clearAXObjectCache();
#endif
}
AXObjectCache* Document::axObjectCache() const
{
#if PLATFORM(ANDROID)
return 0;
#else
// The only document that actually has a AXObjectCache is the top-level
// document. This is because we need to be able to get from any WebCoreAXObject
// to any other WebCoreAXObject on the same page. Using a single cache allows
// lookups across nested webareas (i.e. multiple documents).
if (m_axObjectCache) {
// return already known top-level cache
if (!ownerElement())
return m_axObjectCache;
// In some pages with frames, the cache is created before the sub-webarea is
// inserted into the tree. Here, we catch that case and just toss the old
// cache and start over.
// NOTE: This recovery may no longer be needed. I have been unable to trigger
// it again. See rdar://5794454
// FIXME: Can this be fixed when inserting the subframe instead of now?
// FIXME: If this function was called to get the cache in order to remove
// an AXObject, we are now deleting the cache as a whole and returning a
// new empty cache that does not contain the AXObject! That should actually
// be OK. I am concerned about other cases like this where accessing the
// cache blows away the AXObject being operated on.
delete m_axObjectCache;
m_axObjectCache = 0;
}
// ask the top-level document for its cache
Document* doc = topDocument();
if (doc != this)
return doc->axObjectCache();
// this is the top-level document, so install a new cache
m_axObjectCache = new AXObjectCache;
return m_axObjectCache;
#endif // ANDROID
}
void Document::setVisuallyOrdered()
{
m_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(Document* ownerDocument)
{
if (ownerDocument) {
setURL(ownerDocument->url());
m_cookieURL = ownerDocument->cookieURL();
ScriptExecutionContext::setSecurityOrigin(ownerDocument->securityOrigin());
}
if (m_frame) {
if (m_frame->loader()->isLoadingMainResource() || (tokenizer() && tokenizer()->executingScript()))
return;
if (m_frame->loader()->state() == FrameStateProvisional)
m_frame->loader()->stopAllLoaders();
}
implicitOpen();
if (DOMWindow* domWindow = this->domWindow())
domWindow->removeAllEventListeners();
if (m_frame)
m_frame->loader()->didExplicitOpen();
}
void Document::cancelParsing()
{
if (m_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
m_tokenizer.clear();
close();
}
}
void Document::implicitOpen()
{
cancelParsing();
m_tokenizer.clear();
removeChildren();
m_tokenizer = createTokenizer();
setParsing(true);
if (m_frame)
m_tokenizer->setXSSAuditor(m_frame->script()->xssAuditor());
// If we reload, the animation controller sticks around and has
// a stale animation time. We need to update it here.
if (m_frame && m_frame->animation())
m_frame->animation()->beginAnimationUpdate();
}
HTMLElement* Document::body() const
{
Node* de = documentElement();
if (!de)
return 0;
// try to prefer a FRAMESET element over BODY
Node* body = 0;
for (Node* i = de->firstChild(); i; i = i->nextSibling()) {
if (i->hasTagName(framesetTag))
return static_cast<HTMLElement*>(i);
if (i->hasTagName(bodyTag) && !body)
body = i;
}
return static_cast<HTMLElement*>(body);
}
void Document::setBody(PassRefPtr<HTMLElement> newBody, ExceptionCode& ec)
{
if (!newBody || !documentElement()) {
ec = HIERARCHY_REQUEST_ERR;
return;
}
HTMLElement* b = body();
if (!b)
documentElement()->appendChild(newBody, ec);
else
documentElement()->replaceChild(newBody, b, ec);
}
HTMLHeadElement* Document::head()
{
Node* de = documentElement();
if (!de)
return 0;
for (Node* e = de->firstChild(); e; e = e->nextSibling())
if (e->hasTagName(headTag))
return static_cast<HTMLHeadElement*>(e);
return 0;
}
void Document::close()
{
Frame* frame = this->frame();
if (frame) {
// This code calls implicitClose() if all loading has completed.
FrameLoader* frameLoader = frame->loader();
frameLoader->endIfNotLoadingMainResource();
frameLoader->checkCompleted();
} else {
// Because we have no frame, we don't know if all loading has completed,
// so we just call implicitClose() immediately. FIXME: This might fire
// the load event prematurely <http://bugs.webkit.org/show_bug.cgi?id=14568>.
implicitClose();
}
}
void Document::implicitClose()
{
// If we're in the middle of recalcStyle, we need to defer the close until the style information is accurate and all elements are re-attached.
if (m_inStyleRecalc) {
m_closeAfterStyleRecalc = true;
return;
}
bool wasLocationChangePending = frame() && frame()->redirectScheduler()->locationChangePending();
bool doload = !parsing() && m_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.
m_tokenizer.clear();
// Parser should have picked up all preloads by now
m_docLoader->clearPreloads();
// Create a head and a body if we don't have those yet (e.g. for about:blank).
if (!this->body() && isHTMLDocument()) {
if (Node* documentElement = this->documentElement()) {
ExceptionCode ec = 0;
// The implicit <head> isn't expected in older versions of Mail - <rdar://problem/6863795>
if (!head() && shouldCreateImplicitHead(this)) {
documentElement->appendChild(new HTMLHeadElement(headTag, this), ec);
ASSERT(!ec);
}
documentElement->appendChild(new HTMLBodyElement(bodyTag, this), ec);
ASSERT(!ec);
}
}
// FIXME: We kick off the icon loader when the Document is done parsing.
// There are earlier opportunities we could start it:
// -When the <head> finishes parsing
// -When any new HTMLLinkElement is inserted into the document
// But those add a dynamic component to the favicon that has UI
// ramifications, and we need to decide what is the Right Thing To Do(tm)
Frame* f = frame();
if (f)
f->loader()->startIconLoader();
// Resume the animations (or start them)
if (f)
f->animation()->resumeAnimations(this);
ImageLoader::dispatchPendingBeforeLoadEvents();
ImageLoader::dispatchPendingLoadEvents();
dispatchWindowLoadEvent();
dispatchWindowEvent(PageTransitionEvent::create(eventNames().pageshowEvent, false), this);
if (m_pendingStateObject)
dispatchWindowEvent(PopStateEvent::create(m_pendingStateObject.release()));
if (f)
f->loader()->handledOnloadEvents();
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("onload fired at %d\n", elapsedTime());
#endif
m_processingLoadEvent = false;
// An event handler may have removed the frame
if (!frame())
return;
// Make sure both the initial layout and reflow happen after the onload
// fires. This will improve onload scores, and other browsers do it.
// If they wanna cheat, we can too. -dwh
if (frame()->redirectScheduler()->locationChangePending() && elapsedTime() < cLayoutScheduleThreshold) {
// Just bail out. Before or during the onload we were shifted to another page.
// The old i-Bench suite does this. When this happens don't bother painting or laying out.
view()->unscheduleRelayout();
return;
}
frame()->loader()->checkCallImplicitClose();
RenderObject* renderObject = renderer();
// We used to force a synchronous display and flush here. This really isn't
// necessary and can in fact be actively harmful if pages are loading at a rate of > 60fps
// (if your platform is syncing flushes and limiting them to 60fps).
m_overMinimumLayoutThreshold = true;
if (!ownerElement() || (ownerElement()->renderer() && !ownerElement()->renderer()->needsLayout())) {
updateStyleIfNeeded();
// Always do a layout after loading if needed.
if (view() && renderObject && (!renderObject->firstChild() || renderObject->needsLayout()))
view()->layout();
}
#if PLATFORM(MAC)
if (f && renderObject && this == topDocument() && AXObjectCache::accessibilityEnabled()) {
// The AX cache may have been cleared at this point, but we need to make sure it contains an
// AX object to send the notification to. getOrCreate will make sure that an valid AX object
// exists in the cache (we ignore the return value because we don't need it here). This is
// only safe to call when a layout is not in progress, so it can not be used in postNotification.
axObjectCache()->getOrCreate(renderObject);
axObjectCache()->postNotification(renderObject, AXObjectCache::AXLoadComplete, true);
}
#endif
#if ENABLE(SVG)
// FIXME: Officially, time 0 is when the outermost <svg> receives its
// SVGLoad event, but we don't implement those yet. This is close enough
// for now. In some cases we should have fired earlier.
if (svgExtensions())
accessSVGExtensions()->startAnimations();
#endif
}
void Document::setParsing(bool b)
{
m_bParsing = b;
if (!m_bParsing && view())
view()->scheduleRelayout();
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement() && !m_bParsing)
printf("Parsing finished at %d\n", elapsedTime());
#endif
}
bool Document::shouldScheduleLayout()
{
// This function will only be called when FrameView thinks a layout is needed.
// This enforces a couple extra rules.
//
// (a) Only schedule a layout once the stylesheets are loaded.
// (b) Only schedule layout once we have a body element.
return (haveStylesheetsLoaded() && body()) ||
(documentElement() && !documentElement()->hasTagName(htmlTag));
}
int Document::minimumLayoutDelay()
{
if (m_overMinimumLayoutThreshold)
return m_extraLayoutDelay;
int elapsed = elapsedTime();
m_overMinimumLayoutThreshold = elapsed > cLayoutScheduleThreshold;
// We'll want to schedule the timer to fire at the minimum layout threshold.
return max(0, cLayoutScheduleThreshold - elapsed) + m_extraLayoutDelay;
}
int Document::elapsedTime() const
{
return static_cast<int>((currentTime() - m_startTime) * 1000);
}
void Document::write(const SegmentedString& text, Document* ownerDocument)
{
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Beginning a document.write at %d\n", elapsedTime());
#endif
if (!m_tokenizer)
open(ownerDocument);
ASSERT(m_tokenizer);
m_tokenizer->write(text, false);
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Ending a document.write at %d\n", elapsedTime());
#endif
}
void Document::write(const String& text, Document* ownerDocument)
{
write(SegmentedString(text), ownerDocument);
}
void Document::writeln(const String& text, Document* ownerDocument)
{
write(text, ownerDocument);
write("\n", ownerDocument);
}
void Document::finishParsing()
{
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Received all data at %d\n", elapsedTime());
#endif
// Let the 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();
}
const KURL& Document::virtualURL() const
{
return m_url;
}
KURL Document::virtualCompleteURL(const String& url) const
{
return completeURL(url);
}
void Document::setURL(const KURL& url)
{
const KURL& newURL = url.isEmpty() ? blankURL() : url;
if (newURL == m_url)
return;
m_url = newURL;
m_documentURI = m_url.string();
updateBaseURL();
}
void Document::setBaseElementURL(const KURL& baseElementURL)
{
m_baseElementURL = baseElementURL;
updateBaseURL();
}
void Document::updateBaseURL()
{
// DOM 3 Core: When the Document supports the feature "HTML" [DOM Level 2 HTML], the base URI is computed using
// first the value of the href attribute of the HTML BASE element if any, and the value of the documentURI attribute
// from the Document interface otherwise.
if (m_baseElementURL.isEmpty()) {
// The documentURI attribute is an arbitrary string. DOM 3 Core does not specify how it should be resolved,
// so we use a null base URL.
m_baseURL = KURL(KURL(), documentURI());
} else
m_baseURL = m_baseElementURL;
if (!m_baseURL.isValid())
m_baseURL = KURL();
if (m_elemSheet)
m_elemSheet->setFinalURL(m_baseURL);
if (m_mappedElementSheet)
m_mappedElementSheet->setFinalURL(m_baseURL);
}
String Document::userAgent(const KURL& url) const
{
return frame() ? frame()->loader()->userAgent(url) : String();
}
CSSStyleSheet* Document::pageUserSheet()
{
if (m_pageUserSheet)
return m_pageUserSheet.get();
Page* owningPage = page();
if (!owningPage)
return 0;
String userSheetText = owningPage->userStyleSheet();
if (userSheetText.isEmpty())
return 0;
// Parse the sheet and cache it.
m_pageUserSheet = CSSStyleSheet::createInline(this, settings()->userStyleSheetLocation());
m_pageUserSheet->setIsUserStyleSheet(true);
m_pageUserSheet->parseString(userSheetText, !inCompatMode());
return m_pageUserSheet.get();
}
void Document::clearPageUserSheet()
{
m_pageUserSheet = 0;
updateStyleSelector();
}
const Vector<RefPtr<CSSStyleSheet> >* Document::pageGroupUserSheets() const
{
if (m_pageGroupUserSheetCacheValid)
return m_pageGroupUserSheets.get();
m_pageGroupUserSheetCacheValid = true;
Page* owningPage = page();
if (!owningPage)
return 0;
const PageGroup& pageGroup = owningPage->group();
const UserStyleSheetMap* sheetsMap = pageGroup.userStyleSheets();
if (!sheetsMap)
return 0;
UserStyleSheetMap::const_iterator end = sheetsMap->end();
for (UserStyleSheetMap::const_iterator it = sheetsMap->begin(); it != end; ++it) {
const UserStyleSheetVector* sheets = it->second;
for (unsigned i = 0; i < sheets->size(); ++i) {
const UserStyleSheet* sheet = sheets->at(i).get();
if (!UserContentURLPattern::matchesPatterns(url(), sheet->whitelist(), sheet->blacklist()))
continue;
RefPtr<CSSStyleSheet> parsedSheet = CSSStyleSheet::createInline(const_cast<Document*>(this), sheet->url());
parsedSheet->setIsUserStyleSheet(true);
parsedSheet->parseString(sheet->source(), !inCompatMode());
if (!m_pageGroupUserSheets)
m_pageGroupUserSheets.set(new Vector<RefPtr<CSSStyleSheet> >);
m_pageGroupUserSheets->append(parsedSheet.release());
}
}
return m_pageGroupUserSheets.get();
}
void Document::clearPageGroupUserSheets()
{
m_pageGroupUserSheets.clear();
m_pageGroupUserSheetCacheValid = false;
updateStyleSelector();
}
CSSStyleSheet* Document::elementSheet()
{
if (!m_elemSheet)
m_elemSheet = CSSStyleSheet::createInline(this, m_baseURL);
return m_elemSheet.get();
}
CSSStyleSheet* Document::mappedElementSheet()
{
if (!m_mappedElementSheet)
m_mappedElementSheet = CSSStyleSheet::createInline(this, m_baseURL);
return m_mappedElementSheet.get();
}
static Node* nextNodeWithExactTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
{
// Search is inclusive of start
for (Node* n = start; n; n = n->traverseNextNode())
if (n->isKeyboardFocusable(event) && n->tabIndex() == tabIndex)
return n;
return 0;
}
static Node* previousNodeWithExactTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
{
// Search is inclusive of start
for (Node* n = start; n; n = n->traversePreviousNode())
if (n->isKeyboardFocusable(event) && n->tabIndex() == tabIndex)
return n;
return 0;
}
static Node* nextNodeWithGreaterTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
{
// Search is inclusive of start
int winningTabIndex = SHRT_MAX + 1;
Node* winner = 0;
for (Node* n = start; n; n = n->traverseNextNode())
if (n->isKeyboardFocusable(event) && n->tabIndex() > tabIndex && n->tabIndex() < winningTabIndex) {
winner = n;
winningTabIndex = n->tabIndex();
}
return winner;
}
static Node* previousNodeWithLowerTabIndex(Node* start, int tabIndex, KeyboardEvent* event)
{
// Search is inclusive of start
int winningTabIndex = 0;
Node* winner = 0;
for (Node* n = start; n; n = n->traversePreviousNode())
if (n->isKeyboardFocusable(event) && n->tabIndex() < tabIndex && n->tabIndex() > winningTabIndex) {
winner = n;
winningTabIndex = n->tabIndex();
}
return winner;
}
Node* Document::nextFocusableNode(Node* start, KeyboardEvent* event)
{
if (start) {
// If a node is excluded from the normal tabbing cycle, the next focusable node is determined by tree order
if (start->tabIndex() < 0) {
for (Node* n = start->traverseNextNode(); n; n = n->traverseNextNode())
if (n->isKeyboardFocusable(event) && n->tabIndex() >= 0)
return n;
}
// First try to find a node with the same tabindex as start that comes after start in the document.
if (Node* winner = nextNodeWithExactTabIndex(start->traverseNextNode(), start->tabIndex(), event))
return winner;
if (start->tabIndex() == 0)
// We've reached the last node in the document with a tabindex of 0. This is the end of the tabbing order.
return 0;
}
// Look for the first node in the document that:
// 1) has the lowest tabindex that is higher than start's tabindex (or 0, if start is null), and
// 2) comes first in the document, if there's a tie.
if (Node* winner = nextNodeWithGreaterTabIndex(this, start ? start->tabIndex() : 0, event))
return winner;
// There are no nodes with a tabindex greater than start's tabindex,
// so find the first node with a tabindex of 0.
return nextNodeWithExactTabIndex(this, 0, event);
}
Node* Document::previousFocusableNode(Node* start, KeyboardEvent* event)
{
Node* last;
for (last = this; last->lastChild(); last = last->lastChild())
; // Empty loop.
// First try to find the last node in the document that comes before start and has the same tabindex as start.
// If start is null, find the last node in the document with a tabindex of 0.
Node* startingNode;
int startingTabIndex;
if (start) {
startingNode = start->traversePreviousNode();
startingTabIndex = start->tabIndex();
} else {
startingNode = last;
startingTabIndex = 0;
}
// However, if a node is excluded from the normal tabbing cycle, the previous focusable node is determined by tree order
if (startingTabIndex < 0) {
for (Node* n = startingNode; n; n = n->traversePreviousNode())
if (n->isKeyboardFocusable(event) && n->tabIndex() >= 0)
return n;
}
if (Node* winner = previousNodeWithExactTabIndex(startingNode, startingTabIndex, event))
return winner;
// There are no nodes before start with the same tabindex as start, so look for a node that:
// 1) has the highest non-zero tabindex (that is less than start's tabindex), and
// 2) comes last in the document, if there's a tie.
startingTabIndex = (start && start->tabIndex()) ? start->tabIndex() : SHRT_MAX;
return previousNodeWithLowerTabIndex(last, startingTabIndex, event);
}
int Document::nodeAbsIndex(Node *node)
{
ASSERT(node->document() == this);
int absIndex = 0;
for (Node *n = node; n && n != this; n = n->traversePreviousNode())
absIndex++;
return absIndex;
}
Node *Document::nodeWithAbsIndex(int absIndex)
{
Node *n = this;
for (int i = 0; n && (i < absIndex); i++) {
n = n->traverseNextNode();
}
return n;
}
#ifdef ANDROID_META_SUPPORT
// Though isspace() considers \t and \v to be whitespace, Win IE doesn't.
static bool isSeparator(::UChar c)
{
return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '=' || c == ',' || c == ';' || c == '\0';
}
void Document::processMetadataSettings(const String& content)
{
ASSERT(!content.isNull());
int keyBegin, keyEnd, valueBegin, valueEnd;
int i = 0;
int length = content.length();
String buffer = content.lower();
while (i < length) {
// skip to first non-separator, but don't skip past the end of the string
while (isSeparator(buffer[i])) {
if (i >= length)
break;
i++;
}
keyBegin = i;
// skip to first separator
while (!isSeparator(buffer[i]))
i++;
keyEnd = i;
// skip to first '=', but don't skip past a ',', ';' or the end of the string
while (buffer[i] != '=') {
if (buffer[i] == ',' || buffer[i] == ';' || i >= length)
break;
i++;
}
// skip to first non-separator, but don't skip past a ',', ';' or the end of the string
while (isSeparator(buffer[i])) {
if (buffer[i] == ',' || buffer[i] == ';' || i >= length)
break;
i++;
}
valueBegin = i;
// skip to first separator
while (!isSeparator(buffer[i]))
i++;
valueEnd = i;
ASSERT(i <= length);
String key(buffer.substring(keyBegin, keyEnd - keyBegin));
String value(buffer.substring(valueBegin, valueEnd - valueBegin));
if (frame())
frame()->settings()->setMetadataSettings(key, value);
}
}
#endif
void Document::processHttpEquiv(const String& equiv, const String& content)
{
ASSERT(!equiv.isNull() && !content.isNull());
Frame* frame = this->frame();
if (equalIgnoringCase(equiv, "default-style")) {
// The preferred style set has been overridden as per section
// 14.3.2 of the HTML4.0 specification. We need to update the
// sheet used variable and then update our style selector.
// For more info, see the test at:
// http://www.hixie.ch/tests/evil/css/import/main/preferred.html
// -dwh
m_selectedStylesheetSet = content;
m_preferredStylesheetSet = content;
updateStyleSelector();
} else if (equalIgnoringCase(equiv, "refresh")) {
double delay;
String url;
if (frame && parseHTTPRefresh(content, true, delay, url)) {
if (url.isEmpty())
url = frame->loader()->url().string();
else
url = completeURL(url).string();
frame->redirectScheduler()->scheduleRedirect(delay, url);
}
} else if (equalIgnoringCase(equiv, "set-cookie")) {
// FIXME: make setCookie work on XML documents too; e.g. in case of <html:meta .....>
if (isHTMLDocument()) {
ExceptionCode ec; // Exception (for sandboxed documents) ignored.
static_cast<HTMLDocument*>(this)->setCookie(content, ec);
}
} else if (equalIgnoringCase(equiv, "content-language"))
setContentLanguage(content);
else if (equalIgnoringCase(equiv, "x-dns-prefetch-control"))
parseDNSPrefetchControlHeader(content);
else if (equalIgnoringCase(equiv, "x-frame-options")) {
FrameLoader* frameLoader = frame->loader();
if (frameLoader->shouldInterruptLoadForXFrameOptions(content, url())) {
frameLoader->stopAllLoaders();
frame->redirectScheduler()->scheduleLocationChange(blankURL(), String());
}
}
}
MouseEventWithHitTestResults Document::prepareMouseEvent(const HitTestRequest& request, const IntPoint& documentPoint, const PlatformMouseEvent& event)
{
ASSERT(!renderer() || renderer()->isRenderView());
if (!renderer())
return MouseEventWithHitTestResults(event, HitTestResult(IntPoint()));
HitTestResult result(documentPoint);
renderView()->layer()->hitTest(request, result);
if (!request.readOnly())
updateStyleIfNeeded();
return MouseEventWithHitTestResults(event, result);
}
// DOM Section 1.1.1
bool Document::childTypeAllowed(NodeType type)
{
switch (type) {
case ATTRIBUTE_NODE:
case CDATA_SECTION_NODE:
case DOCUMENT_FRAGMENT_NODE:
case DOCUMENT_NODE:
case ENTITY_NODE:
case ENTITY_REFERENCE_NODE:
case NOTATION_NODE:
case TEXT_NODE:
case XPATH_NAMESPACE_NODE:
return false;
case COMMENT_NODE:
case PROCESSING_INSTRUCTION_NODE:
return true;
case DOCUMENT_TYPE_NODE:
case ELEMENT_NODE:
// Documents may contain no more than one of each of these.
// (One Element and one DocumentType.)
for (Node* c = firstChild(); c; c = c->nextSibling())
if (c->nodeType() == type)
return false;
return true;
}
return false;
}
bool Document::canReplaceChild(Node* newChild, Node* oldChild)
{
if (!oldChild)
// ContainerNode::replaceChild will raise a NOT_FOUND_ERR.
return true;
if (oldChild->nodeType() == newChild->nodeType())
return true;
int numDoctypes = 0;
int numElements = 0;
// First, check how many doctypes and elements we have, not counting
// the child we're about to remove.
for (Node* c = firstChild(); c; c = c->nextSibling()) {
if (c == oldChild)
continue;
switch (c->nodeType()) {
case DOCUMENT_TYPE_NODE:
numDoctypes++;
break;
case ELEMENT_NODE:
numElements++;
break;
default:
break;
}
}
// Then, see how many doctypes and elements might be added by the new child.
if (newChild->nodeType() == DOCUMENT_FRAGMENT_NODE) {
for (Node* c = firstChild(); c; c = c->nextSibling()) {
switch (c->nodeType()) {
case ATTRIBUTE_NODE:
case CDATA_SECTION_NODE:
case DOCUMENT_FRAGMENT_NODE:
case DOCUMENT_NODE:
case ENTITY_NODE:
case ENTITY_REFERENCE_NODE:
case NOTATION_NODE:
case TEXT_NODE:
case XPATH_NAMESPACE_NODE:
return false;
case COMMENT_NODE:
case PROCESSING_INSTRUCTION_NODE:
break;
case DOCUMENT_TYPE_NODE:
numDoctypes++;
break;
case ELEMENT_NODE:
numElements++;
break;
}
}
} else {
switch (newChild->nodeType()) {
case ATTRIBUTE_NODE:
case CDATA_SECTION_NODE:
case DOCUMENT_FRAGMENT_NODE:
case DOCUMENT_NODE:
case ENTITY_NODE:
case ENTITY_REFERENCE_NODE:
case NOTATION_NODE:
case TEXT_NODE:
case XPATH_NAMESPACE_NODE:
return false;
case COMMENT_NODE:
case PROCESSING_INSTRUCTION_NODE:
return true;
case DOCUMENT_TYPE_NODE:
numDoctypes++;
break;
case ELEMENT_NODE:
numElements++;
break;
}
}
if (numElements > 1 || numDoctypes > 1)
return false;
return true;
}
PassRefPtr<Node> Document::cloneNode(bool /*deep*/)
{
// Spec says cloning Document nodes is "implementation dependent"
// so we do not support it...
return 0;
}
StyleSheetList* Document::styleSheets()
{
return m_styleSheets.get();
}
String Document::preferredStylesheetSet() const
{
return m_preferredStylesheetSet;
}
String Document::selectedStylesheetSet() const
{
return m_selectedStylesheetSet;
}
void Document::setSelectedStylesheetSet(const String& aString)
{
m_selectedStylesheetSet = aString;
updateStyleSelector();
if (renderer())
renderer()->repaint();
}
// This method is called whenever a top-level stylesheet has finished loading.
void Document::removePendingSheet()
{
// Make sure we knew this sheet was pending, and that our count isn't out of sync.
ASSERT(m_pendingStylesheets > 0);
m_pendingStylesheets--;
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Stylesheet loaded at time %d. %d stylesheets still remain.\n", elapsedTime(), m_pendingStylesheets);
#endif
updateStyleSelector();
if (!m_pendingStylesheets && m_tokenizer)
m_tokenizer->executeScriptsWaitingForStylesheets();
if (!m_pendingStylesheets && m_gotoAnchorNeededAfterStylesheetsLoad && view())
view()->scrollToFragment(m_frame->loader()->url());
}
void Document::updateStyleSelector()
{
// Don't bother updating, since we haven't loaded all our style info yet
// and haven't calculated the style selector for the first time.
if (!m_didCalculateStyleSelector && !haveStylesheetsLoaded())
return;
if (didLayoutWithPendingStylesheets() && m_pendingStylesheets <= 0) {
m_pendingSheetLayout = IgnoreLayoutWithPendingSheets;
if (renderer())
renderer()->repaint();
}
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Beginning update of style selector at time %d.\n", elapsedTime());
#endif
recalcStyleSelector();
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::addStyleSheetCandidateNode(Node* node, bool createdByParser)
{
// Until the <body> exists, we have no choice but to compare document positions,
// since styles outside of the body and head continue to be shunted into the head
// (and thus can shift to end up before dynamically added DOM content that is also
// outside the body).
if ((createdByParser && body()) || m_styleSheetCandidateNodes.isEmpty()) {
m_styleSheetCandidateNodes.add(node);
return;
}
// Determine an appropriate insertion point.
ListHashSet<Node*>::iterator begin = m_styleSheetCandidateNodes.begin();
ListHashSet<Node*>::iterator end = m_styleSheetCandidateNodes.end();
ListHashSet<Node*>::iterator it = end;
Node* followingNode = 0;
do {
--it;
Node* n = *it;
unsigned short position = n->compareDocumentPosition(node);
if (position == DOCUMENT_POSITION_FOLLOWING) {
m_styleSheetCandidateNodes.insertBefore(followingNode, node);
return;
}
followingNode = n;
} while (it != begin);
m_styleSheetCandidateNodes.insertBefore(followingNode, node);
}
void Document::removeStyleSheetCandidateNode(Node* node)
{
m_styleSheetCandidateNodes.remove(node);
}
void Document::recalcStyleSelector()
{
if (!renderer() || !attached())
return;
StyleSheetVector sheets;
bool matchAuthorAndUserStyles = true;
if (Settings* settings = this->settings())
matchAuthorAndUserStyles = settings->authorAndUserStylesEnabled();
ListHashSet<Node*>::iterator begin = m_styleSheetCandidateNodes.begin();
ListHashSet<Node*>::iterator end = m_styleSheetCandidateNodes.end();
if (!matchAuthorAndUserStyles)
end = begin;
for (ListHashSet<Node*>::iterator it = begin; it != end; ++it) {
Node* n = *it;
StyleSheet* sheet = 0;
if (n->nodeType() == PROCESSING_INSTRUCTION_NODE) {
// Processing instruction (XML documents only)
ProcessingInstruction* pi = static_cast<ProcessingInstruction*>(n);
sheet = pi->sheet();
#if ENABLE(XSLT)
// Don't apply XSL transforms to already transformed documents -- <rdar://problem/4132806>
if (pi->isXSL() && !transformSourceDocument()) {
// Don't apply XSL transforms until loading is finished.
if (!parsing())
applyXSLTransform(pi);
return;
}
#endif
if (!sheet && !pi->localHref().isEmpty()) {
// Processing instruction with reference to an element in this document - e.g.
// <?xml-stylesheet href="#mystyle">, with the element
// <foo id="mystyle">heading { color: red; }</foo> at some location in
// the document
Element* elem = getElementById(pi->localHref().impl());
if (elem) {
String sheetText("");
for (Node* c = elem->firstChild(); c; c = c->nextSibling()) {
if (c->nodeType() == TEXT_NODE || c->nodeType() == CDATA_SECTION_NODE)
sheetText += c->nodeValue();
}
RefPtr<CSSStyleSheet> cssSheet = CSSStyleSheet::create(this);
cssSheet->parseString(sheetText);
pi->setCSSStyleSheet(cssSheet);
sheet = cssSheet.get();
}
}
} else if ((n->isHTMLElement() && (n->hasTagName(linkTag) || n->hasTagName(styleTag)))
#if ENABLE(SVG)
|| (n->isSVGElement() && n->hasTagName(SVGNames::styleTag))
#endif
) {
Element* e = static_cast<Element*>(n);
AtomicString title = e->getAttribute(titleAttr);
bool enabledViaScript = false;
if (e->hasLocalName(linkTag)) {
// <LINK> element
HTMLLinkElement* l = static_cast<HTMLLinkElement*>(n);
if (l->isDisabled())
continue;
enabledViaScript = l->isEnabledViaScript();
if (l->isLoading()) {
// it is loading but we should still decide which style sheet set to use
if (!enabledViaScript && !title.isEmpty() && m_preferredStylesheetSet.isEmpty()) {
const AtomicString& rel = e->getAttribute(relAttr);
if (!rel.contains("alternate")) {
m_preferredStylesheetSet = title;
m_selectedStylesheetSet = title;
}
}
continue;
}
if (!l->sheet())
title = nullAtom;
}
// Get the current preferred styleset. This is the
// set of sheets that will be enabled.
#if ENABLE(SVG)
if (n->isSVGElement() && n->hasTagName(SVGNames::styleTag))
sheet = static_cast<SVGStyleElement*>(n)->sheet();
else
#endif
if (e->hasLocalName(linkTag))
sheet = static_cast<HTMLLinkElement*>(n)->sheet();
else
// <STYLE> element
sheet = static_cast<HTMLStyleElement*>(n)->sheet();
// Check to see if this sheet belongs to a styleset
// (thus making it PREFERRED or ALTERNATE rather than
// PERSISTENT).
if (!enabledViaScript && !title.isEmpty()) {
// Yes, we have a title.
if (m_preferredStylesheetSet.isEmpty()) {
// No preferred set has been established. If
// we are NOT an alternate sheet, then establish
// us as the preferred set. Otherwise, just ignore
// this sheet.
AtomicString rel = e->getAttribute(relAttr);
if (e->hasLocalName(styleTag) || !rel.contains("alternate"))
m_preferredStylesheetSet = m_selectedStylesheetSet = title;
}
if (title != m_preferredStylesheetSet)
sheet = 0;
}
}
if (sheet)
sheets.append(sheet);
}
m_styleSheets->swap(sheets);
m_styleSelector.clear();
m_didCalculateStyleSelector = true;
}
void Document::setHoverNode(PassRefPtr<Node> newHoverNode)
{
m_hoverNode = newHoverNode;
}
void Document::setActiveNode(PassRefPtr<Node> newActiveNode)
{
m_activeNode = newActiveNode;
}
void Document::focusedNodeRemoved()
{
setFocusedNode(0);
}
void Document::removeFocusedNodeOfSubtree(Node* node, bool amongChildrenOnly)
{
if (!m_focusedNode || this->inPageCache()) // If the document is in the page cache, then we don't need to clear out the focused node.
return;
bool nodeInSubtree = false;
if (amongChildrenOnly)
nodeInSubtree = m_focusedNode->isDescendantOf(node);
else
nodeInSubtree = (m_focusedNode == node) || m_focusedNode->isDescendantOf(node);
if (nodeInSubtree)
document()->focusedNodeRemoved();
}
void Document::hoveredNodeDetached(Node* node)
{
if (!m_hoverNode || (node != m_hoverNode && (!m_hoverNode->isTextNode() || node != m_hoverNode->parent())))
return;
m_hoverNode = node->parent();
while (m_hoverNode && !m_hoverNode->renderer())
m_hoverNode = m_hoverNode->parent();
if (frame())
frame()->eventHandler()->scheduleHoverStateUpdate();
}
void Document::activeChainNodeDetached(Node* node)
{
if (!m_activeNode || (node != m_activeNode && (!m_activeNode->isTextNode() || node != m_activeNode->parent())))
return;
m_activeNode = node->parent();
while (m_activeNode && !m_activeNode->renderer())
m_activeNode = m_activeNode->parent();
}
#if ENABLE(DASHBOARD_SUPPORT)
const Vector<DashboardRegionValue>& Document::dashboardRegions() const
{
return m_dashboardRegions;
}
void Document::setDashboardRegions(const Vector<DashboardRegionValue>& regions)
{
m_dashboardRegions = regions;
setDashboardRegionsDirty(false);
}
#endif
bool Document::setFocusedNode(PassRefPtr<Node> newFocusedNode)
{
// Make sure newFocusedNode is actually in this document
if (newFocusedNode && (newFocusedNode->document() != this))
return true;
if (m_focusedNode == newFocusedNode)
return true;
if (m_inPageCache)
return false;
bool focusChangeBlocked = false;
RefPtr<Node> oldFocusedNode = m_focusedNode;
m_focusedNode = 0;
// Remove focus from the existing focus node (if any)
if (oldFocusedNode && !oldFocusedNode->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 = oldFocusedNode->renderer();
if (r && r->isTextControl() && toRenderTextControl(r)->wasChangedSinceLastChangeEvent()) {
static_cast<Element*>(oldFocusedNode.get())->dispatchFormControlChangeEvent();
r = oldFocusedNode->renderer();
if (r && r->isTextControl())
toRenderTextControl(r)->setChangedSinceLastChangeEvent(false);
}
// Dispatch the blur event and let the node do any other blur related activities (important for text fields)
oldFocusedNode->dispatchBlurEvent();
if (m_focusedNode) {
// handler shifted focus
focusChangeBlocked = true;
newFocusedNode = 0;
}
oldFocusedNode->dispatchUIEvent(eventNames().DOMFocusOutEvent, 0, 0);
if (m_focusedNode) {
// handler shifted focus
focusChangeBlocked = true;
newFocusedNode = 0;
}
if (oldFocusedNode == this && oldFocusedNode->hasOneRef())
return true;
if (oldFocusedNode == oldFocusedNode->rootEditableElement())
frame()->editor()->didEndEditing();
}
if (newFocusedNode) {
if (newFocusedNode == newFocusedNode->rootEditableElement() && !acceptsEditingFocus(newFocusedNode.get())) {
// delegate blocks focus change
focusChangeBlocked = true;
goto SetFocusedNodeDone;
}
// Set focus on the new node
m_focusedNode = newFocusedNode.get();
// Dispatch the focus event and let the node do any other focus related activities (important for text fields)
m_focusedNode->dispatchFocusEvent();
if (m_focusedNode != newFocusedNode) {
// handler shifted focus
focusChangeBlocked = true;
goto SetFocusedNodeDone;
}
m_focusedNode->dispatchUIEvent(eventNames().DOMFocusInEvent, 0, 0);
if (m_focusedNode != newFocusedNode) {
// handler shifted focus
focusChangeBlocked = true;
goto SetFocusedNodeDone;
}
m_focusedNode->setFocus();
if (m_focusedNode == m_focusedNode->rootEditableElement())
frame()->editor()->didBeginEditing();
// eww, I suck. set the qt focus correctly
// ### find a better place in the code for this
if (view()) {
Widget *focusWidget = widgetForNode(m_focusedNode.get());
if (focusWidget) {
// Make sure a widget has the right size before giving it focus.
// Otherwise, we are testing edge cases of the Widget code.
// Specifically, in WebCore this does not work well for text fields.
updateLayout();
// Re-get the widget in case updating the layout changed things.
focusWidget = widgetForNode(m_focusedNode.get());
}
if (focusWidget)
focusWidget->setFocus();
else
view()->setFocus();
}
}
#if ((PLATFORM(MAC) || PLATFORM(WIN)) && !PLATFORM(CHROMIUM)) || PLATFORM(GTK)
if (!focusChangeBlocked && m_focusedNode && AXObjectCache::accessibilityEnabled()) {
RenderObject* oldFocusedRenderer = 0;
RenderObject* newFocusedRenderer = 0;
if (oldFocusedNode)
oldFocusedRenderer = oldFocusedNode->renderer();
if (newFocusedNode)
newFocusedRenderer = newFocusedNode->renderer();
axObjectCache()->handleFocusedUIElementChanged(oldFocusedRenderer, newFocusedRenderer);
}
#endif
if (!focusChangeBlocked)
page()->chrome()->focusedNodeChanged(m_focusedNode.get());
SetFocusedNodeDone:
updateStyleIfNeeded();
return !focusChangeBlocked;
}
void Document::getFocusableNodes(Vector<RefPtr<Node> >& nodes)
{
updateLayout();
for (Node* node = firstChild(); node; node = node->traverseNextNode()) {
if (node->isFocusable())
nodes.append(node);
}
}
void Document::setCSSTarget(Element* n)
{
if (m_cssTarget)
m_cssTarget->setNeedsStyleRecalc();
m_cssTarget = n;
if (n)
n->setNeedsStyleRecalc();
}
void Document::attachNodeIterator(NodeIterator *ni)
{
m_nodeIterators.add(ni);
}
void Document::detachNodeIterator(NodeIterator *ni)
{
m_nodeIterators.remove(ni);
}
void Document::nodeChildrenChanged(ContainerNode* container)
{
if (!disableRangeMutation(page())) {
HashSet<Range*>::const_iterator end = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
(*it)->nodeChildrenChanged(container);
}
}
void Document::nodeWillBeRemoved(Node* n)
{
HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it)
(*it)->nodeWillBeRemoved(n);
if (!disableRangeMutation(page())) {
HashSet<Range*>::const_iterator rangesEnd = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != rangesEnd; ++it)
(*it)->nodeWillBeRemoved(n);
}
if (Frame* frame = this->frame()) {
frame->selection()->nodeWillBeRemoved(n);
frame->dragCaretController()->nodeWillBeRemoved(n);
}
}
void Document::textInserted(Node* text, unsigned offset, unsigned length)
{
if (!disableRangeMutation(page())) {
HashSet<Range*>::const_iterator end = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
(*it)->textInserted(text, offset, length);
}
// Update the markers for spelling and grammar checking.
shiftMarkers(text, offset, length);
}
void Document::textRemoved(Node* text, unsigned offset, unsigned length)
{
if (!disableRangeMutation(page())) {
HashSet<Range*>::const_iterator end = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
(*it)->textRemoved(text, offset, length);
}
// Update the markers for spelling and grammar checking.
removeMarkers(text, offset, length);
shiftMarkers(text, offset + length, 0 - length);
}
void Document::textNodesMerged(Text* oldNode, unsigned offset)
{
if (!disableRangeMutation(page())) {
NodeWithIndex oldNodeWithIndex(oldNode);
HashSet<Range*>::const_iterator end = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
(*it)->textNodesMerged(oldNodeWithIndex, offset);
}
// FIXME: This should update markers for spelling and grammar checking.
}
void Document::textNodeSplit(Text* oldNode)
{
if (!disableRangeMutation(page())) {
HashSet<Range*>::const_iterator end = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
(*it)->textNodeSplit(oldNode);
}
// FIXME: This should update markers for spelling and grammar checking.
}
// FIXME: eventually, this should return a DOMWindow stored in the document.
DOMWindow* Document::domWindow() const
{
if (!frame())
return 0;
// The m_frame pointer is not (not always?) zeroed out when the document is put into b/f cache, so the frame can hold an unrelated document/window pair.
// FIXME: We should always zero out the frame pointer on navigation to avoid accidentally accessing the new frame content.
if (m_frame->document() != this)
return 0;
return frame()->domWindow();
}
void Document::setWindowAttributeEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener)
{
DOMWindow* domWindow = this->domWindow();
if (!domWindow)
return;
domWindow->setAttributeEventListener(eventType, listener);
}
EventListener* Document::getWindowAttributeEventListener(const AtomicString& eventType)
{
DOMWindow* domWindow = this->domWindow();
if (!domWindow)
return 0;
return domWindow->getAttributeEventListener(eventType);
}
void Document::dispatchWindowEvent(PassRefPtr<Event> event, PassRefPtr<EventTarget> target)
{
ASSERT(!eventDispatchForbidden());
DOMWindow* domWindow = this->domWindow();
if (!domWindow)
return;
domWindow->dispatchEvent(event, target);
}
void Document::dispatchWindowLoadEvent()
{
ASSERT(!eventDispatchForbidden());
DOMWindow* domWindow = this->domWindow();
if (!domWindow)
return;
domWindow->dispatchLoadEvent();
}
void Document::enqueueStorageEvent(PassRefPtr<Event> storageEvent)
{
m_storageEventQueue.append(storageEvent);
if (!m_storageEventTimer.isActive())
m_storageEventTimer.startOneShot(0);
}
void Document::storageEventTimerFired(Timer<Document>*)
{
ASSERT(!m_storageEventTimer.isActive());
Vector<RefPtr<Event> > storageEventQueue;
storageEventQueue.swap(m_storageEventQueue);
typedef Vector<RefPtr<Event> >::const_iterator Iterator;
Iterator end = storageEventQueue.end();
for (Iterator it = storageEventQueue.begin(); it != end; ++it)
dispatchWindowEvent(*it);
}
PassRefPtr<Event> Document::createEvent(const String& eventType, ExceptionCode& ec)
{
RefPtr<Event> event;
if (eventType == "Event" || eventType == "Events" || eventType == "HTMLEvents")
event = Event::create();
else if (eventType == "KeyboardEvent" || eventType == "KeyboardEvents")
event = KeyboardEvent::create();
else if (eventType == "MessageEvent")
event = MessageEvent::create();
else if (eventType == "MouseEvent" || eventType == "MouseEvents")
event = MouseEvent::create();
else if (eventType == "MutationEvent" || eventType == "MutationEvents")
event = MutationEvent::create();
else if (eventType == "OverflowEvent")
event = OverflowEvent::create();
else if (eventType == "PageTransitionEvent")
event = PageTransitionEvent::create();
else if (eventType == "ProgressEvent")
event = ProgressEvent::create();
#if ENABLE(DOM_STORAGE)
else if (eventType == "StorageEvent")
event = StorageEvent::create();
#endif
else if (eventType == "TextEvent")
event = TextEvent::create();
else if (eventType == "UIEvent" || eventType == "UIEvents")
event = UIEvent::create();
else if (eventType == "WebKitAnimationEvent")
event = WebKitAnimationEvent::create();
else if (eventType == "WebKitTransitionEvent")
event = WebKitTransitionEvent::create();
else if (eventType == "WheelEvent")
event = WheelEvent::create();
#if ENABLE(SVG)
else if (eventType == "SVGEvents")
event = Event::create();
else if (eventType == "SVGZoomEvents")
event = SVGZoomEvent::create();
#endif
#if ENABLE(TOUCH_EVENTS)
else if (eventType == "TouchEvent")
event = TouchEvent::create();
#endif
if (event) {
event->setCreatedByDOM(true);
return event.release();
}
ec = NOT_SUPPORTED_ERR;
return 0;
}
void Document::addListenerTypeIfNeeded(const AtomicString& eventType)
{
if (eventType == eventNames().DOMSubtreeModifiedEvent)
addListenerType(DOMSUBTREEMODIFIED_LISTENER);
else if (eventType == eventNames().DOMNodeInsertedEvent)
addListenerType(DOMNODEINSERTED_LISTENER);
else if (eventType == eventNames().DOMNodeRemovedEvent)
addListenerType(DOMNODEREMOVED_LISTENER);
else if (eventType == eventNames().DOMNodeRemovedFromDocumentEvent)
addListenerType(DOMNODEREMOVEDFROMDOCUMENT_LISTENER);
else if (eventType == eventNames().DOMNodeInsertedIntoDocumentEvent)
addListenerType(DOMNODEINSERTEDINTODOCUMENT_LISTENER);
else if (eventType == eventNames().DOMAttrModifiedEvent)
addListenerType(DOMATTRMODIFIED_LISTENER);
else if (eventType == eventNames().DOMCharacterDataModifiedEvent)
addListenerType(DOMCHARACTERDATAMODIFIED_LISTENER);
else if (eventType == eventNames().overflowchangedEvent)
addListenerType(OVERFLOWCHANGED_LISTENER);
else if (eventType == eventNames().webkitAnimationStartEvent)
addListenerType(ANIMATIONSTART_LISTENER);
else if (eventType == eventNames().webkitAnimationEndEvent)
addListenerType(ANIMATIONEND_LISTENER);
else if (eventType == eventNames().webkitAnimationIterationEvent)
addListenerType(ANIMATIONITERATION_LISTENER);
else if (eventType == eventNames().webkitTransitionEndEvent)
addListenerType(TRANSITIONEND_LISTENER);
else if (eventType == eventNames().beforeloadEvent)
addListenerType(BEFORELOAD_LISTENER);
#if ENABLE(TOUCH_EVENTS)
else if (eventType == eventNames().touchstartEvent
|| eventType == eventNames().touchmoveEvent
|| eventType == eventNames().touchendEvent
|| eventType == eventNames().touchcancelEvent) {
addListenerType(TOUCH_LISTENER);
if (Page* page = this->page())
page->chrome()->client()->needTouchEvents(true);
}
#endif
}
CSSStyleDeclaration* Document::getOverrideStyle(Element*, const String&)
{
return 0;
}
Element* Document::ownerElement() const
{
if (!frame())
return 0;
return frame()->ownerElement();
}
String Document::cookie(ExceptionCode& ec) const
{
if (page() && !page()->cookieEnabled())
return String();
// FIXME: The HTML5 DOM spec states that this attribute can raise an
// INVALID_STATE_ERR exception on getting if the Document has no
// browsing context.
if (!securityOrigin()->canAccessCookies()) {
ec = SECURITY_ERR;
return String();
}
KURL cookieURL = this->cookieURL();
if (cookieURL.isEmpty())
return String();
return cookies(this, cookieURL);
}
void Document::setCookie(const String& value, ExceptionCode& ec)
{
if (page() && !page()->cookieEnabled())
return;
// FIXME: The HTML5 DOM spec states that this attribute can raise an
// INVALID_STATE_ERR exception on setting if the Document has no
// browsing context.
if (!securityOrigin()->canAccessCookies()) {
ec = SECURITY_ERR;
return;
}
KURL cookieURL = this->cookieURL();
if (cookieURL.isEmpty())
return;
setCookies(this, cookieURL, value);
}
String Document::referrer() const
{
if (frame())
return frame()->loader()->referrer();
return String();
}
String Document::domain() const
{
return securityOrigin()->domain();
}
void Document::setDomain(const String& newDomain, ExceptionCode& ec)
{
if (SecurityOrigin::isDomainRelaxationForbiddenForURLScheme(securityOrigin()->protocol())) {
ec = SECURITY_ERR;
return;
}
// Both NS and IE specify that changing the domain is only allowed when
// the new domain is a suffix of the old domain.
// FIXME: We should add logging indicating why a domain was not allowed.
// If the new domain is the same as the old domain, still call
// securityOrigin()->setDomainForDOM. This will change the
// security check behavior. For example, if a page loaded on port 8000
// assigns its current domain using document.domain, the page will
// allow other pages loaded on different ports in the same domain that
// have also assigned to access this page.
if (equalIgnoringCase(domain(), newDomain)) {
securityOrigin()->setDomainFromDOM(newDomain);
if (m_frame)
m_frame->script()->updateSecurityOrigin();
return;
}
int oldLength = domain().length();
int newLength = newDomain.length();
// e.g. newDomain = webkit.org (10) and domain() = www.webkit.org (14)
if (newLength >= oldLength) {
ec = SECURITY_ERR;
return;
}
String test = domain();
// Check that it's a subdomain, not e.g. "ebkit.org"
if (test[oldLength - newLength - 1] != '.') {
ec = SECURITY_ERR;
return;
}
// Now test is "webkit.org" from domain()
// and we check that it's the same thing as newDomain
test.remove(0, oldLength - newLength);
if (test != newDomain) {
ec = SECURITY_ERR;
return;
}
securityOrigin()->setDomainFromDOM(newDomain);
if (m_frame)
m_frame->script()->updateSecurityOrigin();
}
String Document::lastModified() const
{
Frame* f = frame();
if (!f)
return String();
DocumentLoader* loader = f->loader()->documentLoader();
if (!loader)
return String();
return loader->response().httpHeaderField("Last-Modified");
}
static bool isValidNameNonASCII(const UChar* characters, unsigned length)
{
unsigned i = 0;
UChar32 c;
U16_NEXT(characters, i, length, c)
if (!isValidNameStart(c))
return false;
while (i < length) {
U16_NEXT(characters, i, length, c)
if (!isValidNamePart(c))
return false;
}
return true;
}
static inline bool isValidNameASCII(const UChar* characters, unsigned length)
{
UChar c = characters[0];
if (!(isASCIIAlpha(c) || c == ':' || c == '_'))
return false;
for (unsigned i = 1; i < length; ++i) {
c = characters[i];
if (!(isASCIIAlphanumeric(c) || c == ':' || c == '_' || c == '-' || c == '.'))
return false;
}
return true;
}
bool Document::isValidName(const String& name)
{
unsigned length = name.length();
if (!length)
return false;
const UChar* characters = name.characters();
return isValidNameASCII(characters, length) || isValidNameNonASCII(characters, length);
}
bool Document::parseQualifiedName(const String& qualifiedName, String& prefix, String& localName, ExceptionCode& ec)
{
unsigned length = qualifiedName.length();
if (length == 0) {
ec = INVALID_CHARACTER_ERR;
return false;
}
bool nameStart = true;
bool sawColon = false;
int colonPos = 0;
const UChar* s = qualifiedName.characters();
for (unsigned i = 0; i < length;) {
UChar32 c;
U16_NEXT(s, i, length, c)
if (c == ':') {
if (sawColon) {
ec = NAMESPACE_ERR;
return false; // multiple colons: not allowed
}
nameStart = true;
sawColon = true;
colonPos = i - 1;
} else if (nameStart) {
if (!isValidNameStart(c)) {
ec = INVALID_CHARACTER_ERR;
return false;
}
nameStart = false;
} else {
if (!isValidNamePart(c)) {
ec = INVALID_CHARACTER_ERR;
return false;
}
}
}
if (!sawColon) {
prefix = String();
localName = qualifiedName;
} else {
prefix = qualifiedName.substring(0, colonPos);
if (prefix.isEmpty()) {
ec = NAMESPACE_ERR;
return false;
}
localName = qualifiedName.substring(colonPos + 1);
}
if (localName.isEmpty()) {
ec = NAMESPACE_ERR;
return false;
}
return true;
}
void Document::addImageMap(HTMLMapElement* imageMap)
{
const AtomicString& name = imageMap->getName();
if (!name.impl())
return;
// Add the image map, unless there's already another with that name.
// "First map wins" is the rule other browsers seem to implement.
m_imageMapsByName.add(name.impl(), imageMap);
}
void Document::removeImageMap(HTMLMapElement* imageMap)
{
// Remove the image map by name.
// But don't remove some other image map that just happens to have the same name.
// FIXME: Use a HashCountedSet as we do for IDs to find the first remaining map
// once a map has been removed.
const AtomicString& name = imageMap->getName();
if (!name.impl())
return;
m_imageMapsByName.checkConsistency();
ImageMapsByName::iterator it = m_imageMapsByName.find(name.impl());
if (it != m_imageMapsByName.end() && it->second == imageMap)
m_imageMapsByName.remove(it);
}
HTMLMapElement *Document::getImageMap(const String& url) const
{
if (url.isNull())
return 0;
int hashPos = url.find('#');
String name = (hashPos < 0 ? url : url.substring(hashPos + 1)).impl();
AtomicString mapName = isHTMLDocument() ? name.lower() : name;
m_imageMapsByName.checkConsistency();
return m_imageMapsByName.get(mapName.impl());
}
void Document::setDecoder(PassRefPtr<TextResourceDecoder> decoder)
{
m_decoder = decoder;
}
KURL Document::completeURL(const String& url) const
{
// Always return a null URL when passed a null string.
// FIXME: Should we change the KURL constructor to have this behavior?
// See also [CSS]StyleSheet::completeURL(const String&)
if (url.isNull())
return KURL();
const KURL& baseURL = ((m_baseURL.isEmpty() || m_baseURL == blankURL()) && parentDocument()) ? parentDocument()->baseURL() : m_baseURL;
if (!m_decoder)
return KURL(baseURL, url);
return KURL(baseURL, url, m_decoder->encoding());
}
void Document::setInPageCache(bool flag)
{
if (m_inPageCache == flag)
return;
m_inPageCache = flag;
if (flag) {
ASSERT(m_savedRenderer == 0);
m_savedRenderer = renderer();
if (FrameView* v = view())
v->resetScrollbars();
unscheduleStyleRecalc();
} else {
ASSERT(renderer() == 0 || renderer() == m_savedRenderer);
ASSERT(m_renderArena);
setRenderer(m_savedRenderer);
m_savedRenderer = 0;
if (childNeedsStyleRecalc())
scheduleStyleRecalc();
}
}
void Document::documentWillBecomeInactive()
{
#if USE(ACCELERATED_COMPOSITING)
if (renderer())
renderView()->willMoveOffscreen();
#endif
HashSet<Element*>::iterator end = m_documentActivationCallbackElements.end();
for (HashSet<Element*>::iterator i = m_documentActivationCallbackElements.begin(); i != end; ++i)
(*i)->documentWillBecomeInactive();
}
void Document::documentDidBecomeActive()
{
HashSet<Element*>::iterator end = m_documentActivationCallbackElements.end();
for (HashSet<Element*>::iterator i = m_documentActivationCallbackElements.begin(); i != end; ++i)
(*i)->documentDidBecomeActive();
#if USE(ACCELERATED_COMPOSITING)
if (renderer())
renderView()->didMoveOnscreen();
#endif
}
void Document::registerForDocumentActivationCallbacks(Element* e)
{
m_documentActivationCallbackElements.add(e);
}
void Document::unregisterForDocumentActivationCallbacks(Element* e)
{
m_documentActivationCallbackElements.remove(e);
}
void Document::mediaVolumeDidChange()
{
HashSet<Element*>::iterator end = m_mediaVolumeCallbackElements.end();
for (HashSet<Element*>::iterator i = m_mediaVolumeCallbackElements.begin(); i != end; ++i)
(*i)->mediaVolumeDidChange();
}
void Document::registerForMediaVolumeCallbacks(Element* e)
{
m_mediaVolumeCallbackElements.add(e);
}
void Document::unregisterForMediaVolumeCallbacks(Element* e)
{
m_mediaVolumeCallbackElements.remove(e);
}
void Document::setShouldCreateRenderers(bool f)
{
m_createRenderers = f;
}
bool Document::shouldCreateRenderers()
{
return m_createRenderers;
}
// Support for Javascript execCommand, and related methods
static Editor::Command command(Document* document, const String& commandName, bool userInterface = false)
{
Frame* frame = document->frame();
if (!frame || frame->document() != document)
return Editor::Command();
return frame->editor()->command(commandName,
userInterface ? CommandFromDOMWithUserInterface : CommandFromDOM);
}
bool Document::execCommand(const String& commandName, bool userInterface, const String& value)
{
return command(this, commandName, userInterface).execute(value);
}
bool Document::queryCommandEnabled(const String& commandName)
{
return command(this, commandName).isEnabled();
}
bool Document::queryCommandIndeterm(const String& commandName)
{
return command(this, commandName).state() == MixedTriState;
}
bool Document::queryCommandState(const String& commandName)
{
return command(this, commandName).state() != FalseTriState;
}
bool Document::queryCommandSupported(const String& commandName)
{
return command(this, commandName).isSupported();
}
String Document::queryCommandValue(const String& commandName)
{
return command(this, commandName).value();
}
static IntRect placeholderRectForMarker()
{
return IntRect(-1, -1, -1, -1);
}
void Document::addMarker(Range *range, DocumentMarker::MarkerType type, String description)
{
// Use a TextIterator to visit the potentially multiple nodes the range covers.
for (TextIterator markedText(range); !markedText.atEnd(); markedText.advance()) {
RefPtr<Range> textPiece = markedText.range();
int exception = 0;
DocumentMarker marker = {type, textPiece->startOffset(exception), textPiece->endOffset(exception), description, false};
addMarker(textPiece->startContainer(exception), marker);
}
}
void Document::removeMarkers(Range* range, DocumentMarker::MarkerType markerType)
{
if (m_markers.isEmpty())
return;
ExceptionCode ec = 0;
Node* startContainer = range->startContainer(ec);
Node* endContainer = range->endContainer(ec);
Node* pastLastNode = range->pastLastNode();
for (Node* node = range->firstNode(); node != pastLastNode; node = node->traverseNextNode()) {
int startOffset = node == startContainer ? range->startOffset(ec) : 0;
int endOffset = node == endContainer ? range->endOffset(ec) : INT_MAX;
int length = endOffset - startOffset;
removeMarkers(node, startOffset, length, markerType);
}
}
// Markers are stored in order sorted by their start offset.
// Markers of the same type do not overlap each other.
void Document::addMarker(Node* node, DocumentMarker newMarker)
{
ASSERT(newMarker.endOffset >= newMarker.startOffset);
if (newMarker.endOffset == newMarker.startOffset)
return;
MarkerMapVectorPair* vectorPair = m_markers.get(node);
if (!vectorPair) {
vectorPair = new MarkerMapVectorPair;
vectorPair->first.append(newMarker);
vectorPair->second.append(placeholderRectForMarker());
m_markers.set(node, vectorPair);
} else {
Vector<DocumentMarker>& markers = vectorPair->first;
Vector<IntRect>& rects = vectorPair->second;
size_t numMarkers = markers.size();
ASSERT(numMarkers == rects.size());
size_t i;
// Iterate over all markers whose start offset is less than or equal to the new marker's.
// If one of them is of the same type as the new marker and touches it or intersects with it
// (there is at most one), remove it and adjust the new marker's start offset to encompass it.
for (i = 0; i < numMarkers; ++i) {
DocumentMarker marker = markers[i];
if (marker.startOffset > newMarker.startOffset)
break;
if (marker.type == newMarker.type && marker.endOffset >= newMarker.startOffset) {
newMarker.startOffset = marker.startOffset;
markers.remove(i);
rects.remove(i);
numMarkers--;
break;
}
}
size_t j = i;
// Iterate over all markers whose end offset is less than or equal to the new marker's,
// removing markers of the same type as the new marker which touch it or intersect with it,
// adjusting the new marker's end offset to cover them if necessary.
while (j < numMarkers) {
DocumentMarker marker = markers[j];
if (marker.startOffset > newMarker.endOffset)
break;
if (marker.type == newMarker.type) {
markers.remove(j);
rects.remove(j);
if (newMarker.endOffset <= marker.endOffset) {
newMarker.endOffset = marker.endOffset;
break;
}
numMarkers--;
} else
j++;
}
// At this point i points to the node before which we want to insert.
markers.insert(i, newMarker);
rects.insert(i, placeholderRectForMarker());
}
// repaint the affected node
if (node->renderer())
node->renderer()->repaint();
}
// copies markers from srcNode to dstNode, applying the specified shift delta to the copies. The shift is
// useful if, e.g., the caller has created the dstNode from a non-prefix substring of the srcNode.
void Document::copyMarkers(Node *srcNode, unsigned startOffset, int length, Node *dstNode, int delta, DocumentMarker::MarkerType markerType)
{
if (length <= 0)
return;
MarkerMapVectorPair* vectorPair = m_markers.get(srcNode);
if (!vectorPair)
return;
ASSERT(vectorPair->first.size() == vectorPair->second.size());
bool docDirty = false;
unsigned endOffset = startOffset + length - 1;
Vector<DocumentMarker>& markers = vectorPair->first;
for (size_t i = 0; i != markers.size(); ++i) {
DocumentMarker marker = markers[i];
// stop if we are now past the specified range
if (marker.startOffset > endOffset)
break;
// skip marker that is before the specified range or is the wrong type
if (marker.endOffset < startOffset || (marker.type != markerType && markerType != DocumentMarker::AllMarkers))
continue;
// pin the marker to the specified range and apply the shift delta
docDirty = true;
if (marker.startOffset < startOffset)
marker.startOffset = startOffset;
if (marker.endOffset > endOffset)
marker.endOffset = endOffset;
marker.startOffset += delta;
marker.endOffset += delta;
addMarker(dstNode, marker);
}
// repaint the affected node
if (docDirty && dstNode->renderer())
dstNode->renderer()->repaint();
}
void Document::removeMarkers(Node* node, unsigned startOffset, int length, DocumentMarker::MarkerType markerType)
{
if (length <= 0)
return;
MarkerMapVectorPair* vectorPair = m_markers.get(node);
if (!vectorPair)
return;
Vector<DocumentMarker>& markers = vectorPair->first;
Vector<IntRect>& rects = vectorPair->second;
ASSERT(markers.size() == rects.size());
bool docDirty = false;
unsigned endOffset = startOffset + length;
for (size_t i = 0; i < markers.size();) {
DocumentMarker marker = markers[i];
// markers are returned in order, so stop if we are now past the specified range
if (marker.startOffset >= endOffset)
break;
// skip marker that is wrong type or before target
if (marker.endOffset < startOffset || (marker.type != markerType && markerType != DocumentMarker::AllMarkers)) {
i++;
continue;
}
// at this point we know that marker and target intersect in some way
docDirty = true;
// pitch the old marker and any associated rect
markers.remove(i);
rects.remove(i);
// add either of the resulting slices that are left after removing target
if (startOffset > marker.startOffset) {
DocumentMarker newLeft = marker;
newLeft.endOffset = startOffset;
markers.insert(i, newLeft);
rects.insert(i, placeholderRectForMarker());
// i now points to the newly-inserted node, but we want to skip that one
i++;
}
if (marker.endOffset > endOffset) {
DocumentMarker newRight = marker;
newRight.startOffset = endOffset;
markers.insert(i, newRight);
rects.insert(i, placeholderRectForMarker());
// i now points to the newly-inserted node, but we want to skip that one
i++;
}
}
if (markers.isEmpty()) {
ASSERT(rects.isEmpty());
m_markers.remove(node);
delete vectorPair;
}
// repaint the affected node
if (docDirty && node->renderer())
node->renderer()->repaint();
}
DocumentMarker* Document::markerContainingPoint(const IntPoint& point, DocumentMarker::MarkerType markerType)
{
// outer loop: process each node that contains any markers
MarkerMap::iterator end = m_markers.end();
for (MarkerMap::iterator nodeIterator = m_markers.begin(); nodeIterator != end; ++nodeIterator) {
// inner loop; process each marker in this node
MarkerMapVectorPair* vectorPair = nodeIterator->second;
Vector<DocumentMarker>& markers = vectorPair->first;
Vector<IntRect>& rects = vectorPair->second;
ASSERT(markers.size() == rects.size());
unsigned markerCount = markers.size();
for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
DocumentMarker& marker = markers[markerIndex];
// skip marker that is wrong type
if (marker.type != markerType && markerType != DocumentMarker::AllMarkers)
continue;
IntRect& r = rects[markerIndex];
// skip placeholder rects
if (r == placeholderRectForMarker())
continue;
if (r.contains(point))
return ▮
}
}
return 0;
}
Vector<DocumentMarker> Document::markersForNode(Node* node)
{
MarkerMapVectorPair* vectorPair = m_markers.get(node);
if (vectorPair)
return vectorPair->first;
return Vector<DocumentMarker>();
}
Vector<IntRect> Document::renderedRectsForMarkers(DocumentMarker::MarkerType markerType)
{
Vector<IntRect> result;
// outer loop: process each node
MarkerMap::iterator end = m_markers.end();
for (MarkerMap::iterator nodeIterator = m_markers.begin(); nodeIterator != end; ++nodeIterator) {
// inner loop; process each marker in this node
MarkerMapVectorPair* vectorPair = nodeIterator->second;
Vector<DocumentMarker>& markers = vectorPair->first;
Vector<IntRect>& rects = vectorPair->second;
ASSERT(markers.size() == rects.size());
unsigned markerCount = markers.size();
for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
DocumentMarker marker = markers[markerIndex];
// skip marker that is wrong type
if (marker.type != markerType && markerType != DocumentMarker::AllMarkers)
continue;
IntRect r = rects[markerIndex];
// skip placeholder rects
if (r == placeholderRectForMarker())
continue;
result.append(r);
}
}
return result;
}
void Document::removeMarkers(Node* node)
{
MarkerMap::iterator i = m_markers.find(node);
if (i != m_markers.end()) {
delete i->second;
m_markers.remove(i);
if (RenderObject* renderer = node->renderer())
renderer->repaint();
}
}
void Document::removeMarkers(DocumentMarker::MarkerType markerType)
{
// outer loop: process each markered node in the document
MarkerMap markerMapCopy = m_markers;
MarkerMap::iterator end = markerMapCopy.end();
for (MarkerMap::iterator i = markerMapCopy.begin(); i != end; ++i) {
Node* node = i->first.get();
bool nodeNeedsRepaint = false;
// inner loop: process each marker in the current node
MarkerMapVectorPair* vectorPair = i->second;
Vector<DocumentMarker>& markers = vectorPair->first;
Vector<IntRect>& rects = vectorPair->second;
ASSERT(markers.size() == rects.size());
for (size_t i = 0; i != markers.size();) {
DocumentMarker marker = markers[i];
// skip nodes that are not of the specified type
if (marker.type != markerType && markerType != DocumentMarker::AllMarkers) {
++i;
continue;
}
// pitch the old marker
markers.remove(i);
rects.remove(i);
nodeNeedsRepaint = true;
// markerIterator now points to the next node
}
// Redraw the node if it changed. Do this before the node is removed from m_markers, since
// m_markers might contain the last reference to the node.
if (nodeNeedsRepaint) {
RenderObject* renderer = node->renderer();
if (renderer)
renderer->repaint();
}
// delete the node's list if it is now empty
if (markers.isEmpty()) {
ASSERT(rects.isEmpty());
m_markers.remove(node);
delete vectorPair;
}
}
}
void Document::repaintMarkers(DocumentMarker::MarkerType markerType)
{
// outer loop: process each markered node in the document
MarkerMap::iterator end = m_markers.end();
for (MarkerMap::iterator i = m_markers.begin(); i != end; ++i) {
Node* node = i->first.get();
// inner loop: process each marker in the current node
MarkerMapVectorPair* vectorPair = i->second;
Vector<DocumentMarker>& markers = vectorPair->first;
bool nodeNeedsRepaint = false;
for (size_t i = 0; i != markers.size(); ++i) {
DocumentMarker marker = markers[i];
// skip nodes that are not of the specified type
if (marker.type == markerType || markerType == DocumentMarker::AllMarkers) {
nodeNeedsRepaint = true;
break;
}
}
if (!nodeNeedsRepaint)
continue;
// cause the node to be redrawn
if (RenderObject* renderer = node->renderer())
renderer->repaint();
}
}
void Document::setRenderedRectForMarker(Node* node, const DocumentMarker& marker, const IntRect& r)
{
MarkerMapVectorPair* vectorPair = m_markers.get(node);
if (!vectorPair) {
ASSERT_NOT_REACHED(); // shouldn't be trying to set the rect for a marker we don't already know about
return;
}
Vector<DocumentMarker>& markers = vectorPair->first;
ASSERT(markers.size() == vectorPair->second.size());
unsigned markerCount = markers.size();
for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
DocumentMarker m = markers[markerIndex];
if (m == marker) {
vectorPair->second[markerIndex] = r;
return;
}
}
ASSERT_NOT_REACHED(); // shouldn't be trying to set the rect for a marker we don't already know about
}
void Document::invalidateRenderedRectsForMarkersInRect(const IntRect& r)
{
// outer loop: process each markered node in the document
MarkerMap::iterator end = m_markers.end();
for (MarkerMap::iterator i = m_markers.begin(); i != end; ++i) {
// inner loop: process each rect in the current node
MarkerMapVectorPair* vectorPair = i->second;
Vector<IntRect>& rects = vectorPair->second;
unsigned rectCount = rects.size();
for (unsigned rectIndex = 0; rectIndex < rectCount; ++rectIndex)
if (rects[rectIndex].intersects(r))
rects[rectIndex] = placeholderRectForMarker();
}
}
void Document::shiftMarkers(Node *node, unsigned startOffset, int delta, DocumentMarker::MarkerType markerType)
{
MarkerMapVectorPair* vectorPair = m_markers.get(node);
if (!vectorPair)
return;
Vector<DocumentMarker>& markers = vectorPair->first;
Vector<IntRect>& rects = vectorPair->second;
ASSERT(markers.size() == rects.size());
bool docDirty = false;
for (size_t i = 0; i != markers.size(); ++i) {
DocumentMarker &marker = markers[i];
if (marker.startOffset >= startOffset && (markerType == DocumentMarker::AllMarkers || marker.type == markerType)) {
ASSERT((int)marker.startOffset + delta >= 0);
marker.startOffset += delta;
marker.endOffset += delta;
docDirty = true;
// Marker moved, so previously-computed rendered rectangle is now invalid
rects[i] = placeholderRectForMarker();
}
}
// repaint the affected node
if (docDirty && node->renderer())
node->renderer()->repaint();
}
void Document::setMarkersActive(Range* range, bool active)
{
if (m_markers.isEmpty())
return;
ExceptionCode ec = 0;
Node* startContainer = range->startContainer(ec);
Node* endContainer = range->endContainer(ec);
Node* pastLastNode = range->pastLastNode();
for (Node* node = range->firstNode(); node != pastLastNode; node = node->traverseNextNode()) {
int startOffset = node == startContainer ? range->startOffset(ec) : 0;
int endOffset = node == endContainer ? range->endOffset(ec) : INT_MAX;
setMarkersActive(node, startOffset, endOffset, active);
}
}
void Document::setMarkersActive(Node* node, unsigned startOffset, unsigned endOffset, bool active)
{
MarkerMapVectorPair* vectorPair = m_markers.get(node);
if (!vectorPair)
return;
Vector<DocumentMarker>& markers = vectorPair->first;
ASSERT(markers.size() == vectorPair->second.size());
bool docDirty = false;
for (size_t i = 0; i != markers.size(); ++i) {
DocumentMarker &marker = markers[i];
// Markers are returned in order, so stop if we are now past the specified range.
if (marker.startOffset >= endOffset)
break;
// Skip marker that is wrong type or before target.
if (marker.endOffset < startOffset || marker.type != DocumentMarker::TextMatch)
continue;
marker.activeMatch = active;
docDirty = true;
}
// repaint the affected node
if (docDirty && node->renderer())
node->renderer()->repaint();
}
#if ENABLE(XSLT)
void Document::applyXSLTransform(ProcessingInstruction* pi)
{
RefPtr<XSLTProcessor> processor = XSLTProcessor::create();
processor->setXSLStyleSheet(static_cast<XSLStyleSheet*>(pi->sheet()));
String resultMIMEType;
String newSource;
String resultEncoding;
if (!processor->transformToString(this, resultMIMEType, newSource, resultEncoding))
return;
// FIXME: If the transform failed we should probably report an error (like Mozilla does).
processor->createDocumentFromSource(newSource, resultEncoding, resultMIMEType, this, frame());
}
void Document::setTransformSource(PassOwnPtr<TransformSource> source)
{
if (m_transformSource == source)
return;
m_transformSource = source;
}
#endif
void Document::setDesignMode(InheritedBool value)
{
m_designMode = value;
}
Document::InheritedBool Document::getDesignMode() const
{
return m_designMode;
}
bool Document::inDesignMode() const
{
for (const Document* d = this; d; d = d->parentDocument()) {
if (d->m_designMode != inherit)
return d->m_designMode;
}
return false;
}
Document *Document::parentDocument() const
{
Frame *childPart = frame();
if (!childPart)
return 0;
Frame *parent = childPart->tree()->parent();
if (!parent)
return 0;
return parent->document();
}
Document *Document::topDocument() const
{
Document *doc = const_cast<Document *>(this);
Element *element;
while ((element = doc->ownerElement()))
doc = element->document();
return doc;
}
PassRefPtr<Attr> Document::createAttribute(const String& name, ExceptionCode& ec)
{
return createAttributeNS(String(), name, ec, true);
}
PassRefPtr<Attr> Document::createAttributeNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode& ec, bool shouldIgnoreNamespaceChecks)
{
String prefix, localName;
if (!parseQualifiedName(qualifiedName, prefix, localName, ec))
return 0;
QualifiedName qName(prefix, localName, namespaceURI);
if (!shouldIgnoreNamespaceChecks && hasPrefixNamespaceMismatch(qName)) {
ec = NAMESPACE_ERR;
return 0;
}
// Spec: DOM Level 2 Core: http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrAttrNS
if (!shouldIgnoreNamespaceChecks && qName.localName() == xmlnsAtom && qName.namespaceURI() != XMLNSNames::xmlnsNamespaceURI) {
ec = NAMESPACE_ERR;
return 0;
}
// FIXME: Assume this is a mapped attribute, since createAttribute isn't namespace-aware. There's no harm to XML
// documents if we're wrong.
return Attr::create(0, this, MappedAttribute::create(qName, StringImpl::empty()));
}
#if ENABLE(SVG)
const SVGDocumentExtensions* Document::svgExtensions()
{
return m_svgExtensions.get();
}
SVGDocumentExtensions* Document::accessSVGExtensions()
{
if (!m_svgExtensions)
m_svgExtensions.set(new SVGDocumentExtensions(this));
return m_svgExtensions.get();
}
#endif
PassRefPtr<HTMLCollection> Document::images()
{
return HTMLCollection::create(this, DocImages);
}
PassRefPtr<HTMLCollection> Document::applets()
{
return HTMLCollection::create(this, DocApplets);
}
PassRefPtr<HTMLCollection> Document::embeds()
{
return HTMLCollection::create(this, DocEmbeds);
}
PassRefPtr<HTMLCollection> Document::plugins()
{
// This is an alias for embeds() required for the JS DOM bindings.
return HTMLCollection::create(this, DocEmbeds);
}
PassRefPtr<HTMLCollection> Document::objects()
{
return HTMLCollection::create(this, DocObjects);
}
PassRefPtr<HTMLCollection> Document::scripts()
{
return HTMLCollection::create(this, DocScripts);
}
PassRefPtr<HTMLCollection> Document::links()
{
return HTMLCollection::create(this, DocLinks);
}
PassRefPtr<HTMLCollection> Document::forms()
{
return HTMLCollection::create(this, DocForms);
}
PassRefPtr<HTMLCollection> Document::anchors()
{
return HTMLCollection::create(this, DocAnchors);
}
PassRefPtr<HTMLAllCollection> Document::all()
{
return HTMLAllCollection::create(this);
}
PassRefPtr<HTMLCollection> Document::windowNamedItems(const String &name)
{
return HTMLNameCollection::create(this, WindowNamedItems, name);
}
PassRefPtr<HTMLCollection> Document::documentNamedItems(const String &name)
{
return HTMLNameCollection::create(this, DocumentNamedItems, name);
}
CollectionCache* Document::nameCollectionInfo(CollectionType type, const AtomicString& name)
{
ASSERT(type >= FirstNamedDocumentCachedType);
unsigned index = type - FirstNamedDocumentCachedType;
ASSERT(index < NumNamedDocumentCachedTypes);
NamedCollectionMap& map = m_nameCollectionInfo[index];
NamedCollectionMap::iterator iter = map.find(name.impl());
if (iter == map.end())
iter = map.add(name.impl(), new CollectionCache).first;
iter->second->checkConsistency();
return iter->second;
}
void Document::finishedParsing()
{
setParsing(false);
dispatchEvent(Event::create(eventNames().DOMContentLoadedEvent, true, false));
if (Frame* f = frame()) {
f->loader()->finishedParsing();
#if ENABLE(INSPECTOR)
if (!page())
return;
if (InspectorController* controller = page()->inspectorController())
controller->mainResourceFiredDOMContentEvent(f->loader()->documentLoader(), url());
#endif
}
}
Vector<String> Document::formElementsState() const
{
Vector<String> stateVector;
stateVector.reserveInitialCapacity(m_formElementsWithState.size() * 3);
typedef ListHashSet<Element*>::const_iterator Iterator;
Iterator end = m_formElementsWithState.end();
for (Iterator it = m_formElementsWithState.begin(); it != end; ++it) {
Element* e = *it;
String value;
if (e->saveFormControlState(value)) {
stateVector.append(e->formControlName().string());
stateVector.append(e->formControlType().string());
stateVector.append(value);
}
}
return stateVector;
}
#if ENABLE(XPATH)
PassRefPtr<XPathExpression> Document::createExpression(const String& expression,
XPathNSResolver* resolver,
ExceptionCode& ec)
{
if (!m_xpathEvaluator)
m_xpathEvaluator = XPathEvaluator::create();
return m_xpathEvaluator->createExpression(expression, resolver, ec);
}
PassRefPtr<XPathNSResolver> Document::createNSResolver(Node* nodeResolver)
{
if (!m_xpathEvaluator)
m_xpathEvaluator = XPathEvaluator::create();
return m_xpathEvaluator->createNSResolver(nodeResolver);
}
PassRefPtr<XPathResult> Document::evaluate(const String& expression,
Node* contextNode,
XPathNSResolver* resolver,
unsigned short type,
XPathResult* result,
ExceptionCode& ec)
{
if (!m_xpathEvaluator)
m_xpathEvaluator = XPathEvaluator::create();
return m_xpathEvaluator->evaluate(expression, contextNode, resolver, type, result, ec);
}
#endif // ENABLE(XPATH)
void Document::setStateForNewFormElements(const Vector<String>& stateVector)
{
// Walk the state vector backwards so that the value to use for each
// name/type pair first is the one at the end of each individual vector
// in the FormElementStateMap. We're using them like stacks.
typedef FormElementStateMap::iterator Iterator;
m_formElementsWithState.clear();
for (size_t i = stateVector.size() / 3 * 3; i; i -= 3) {
AtomicString a = stateVector[i - 3];
AtomicString b = stateVector[i - 2];
const String& c = stateVector[i - 1];
FormElementKey key(a.impl(), b.impl());
Iterator it = m_stateForNewFormElements.find(key);
if (it != m_stateForNewFormElements.end())
it->second.append(c);
else {
Vector<String> v(1);
v[0] = c;
m_stateForNewFormElements.set(key, v);
}
}
}
bool Document::hasStateForNewFormElements() const
{
return !m_stateForNewFormElements.isEmpty();
}
bool Document::takeStateForFormElement(AtomicStringImpl* name, AtomicStringImpl* type, String& state)
{
typedef FormElementStateMap::iterator Iterator;
Iterator it = m_stateForNewFormElements.find(FormElementKey(name, type));
if (it == m_stateForNewFormElements.end())
return false;
ASSERT(it->second.size());
state = it->second.last();
if (it->second.size() > 1)
it->second.removeLast();
else
m_stateForNewFormElements.remove(it);
return true;
}
FormElementKey::FormElementKey(AtomicStringImpl* name, AtomicStringImpl* type)
: m_name(name), m_type(type)
{
ref();
}
FormElementKey::~FormElementKey()
{
deref();
}
FormElementKey::FormElementKey(const FormElementKey& other)
: m_name(other.name()), m_type(other.type())
{
ref();
}
FormElementKey& FormElementKey::operator=(const FormElementKey& other)
{
other.ref();
deref();
m_name = other.name();
m_type = other.type();
return *this;
}
void FormElementKey::ref() const
{
if (name())
name()->ref();
if (type())
type()->ref();
}
void FormElementKey::deref() const
{
if (name())
name()->deref();
if (type())
type()->deref();
}
unsigned FormElementKeyHash::hash(const FormElementKey& k)
{
ASSERT(sizeof(k) % (sizeof(uint16_t) * 2) == 0);
unsigned l = sizeof(k) / (sizeof(uint16_t) * 2);
const uint16_t* s = reinterpret_cast<const uint16_t*>(&k);
uint32_t hash = WTF::stringHashingStartValue;
// Main loop
for (; l > 0; l--) {
hash += s[0];
uint32_t tmp = (s[1] << 11) ^ hash;
hash = (hash << 16) ^ tmp;
s += 2;
hash += hash >> 11;
}
// Force "avalanching" of final 127 bits
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 2;
hash += hash >> 15;
hash ^= hash << 10;
// this avoids ever returning a hash code of 0, since that is used to
// signal "hash not computed yet", using a value that is likely to be
// effectively the same as 0 when the low bits are masked
if (hash == 0)
hash = 0x80000000;
return hash;
}
void Document::setIconURL(const String& iconURL, const String& type)
{
// FIXME - <rdar://problem/4727645> - At some point in the future, we might actually honor the "type"
if (m_iconURL.isEmpty())
m_iconURL = iconURL;
else if (!type.isEmpty())
m_iconURL = iconURL;
}
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::initSecurityContext()
{
if (securityOrigin() && !securityOrigin()->isEmpty())
return; // m_securityOrigin has already been initialized.
if (!m_frame) {
// No source for a security context.
// This can occur via document.implementation.createDocument().
m_cookieURL = KURL(ParsedURLString, "");
ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::createEmpty());
return;
}
// In the common case, create the security context from the currently
// loading URL.
const KURL& url = m_frame->loader()->url();
m_cookieURL = url;
ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::create(url, m_frame->loader()->sandboxFlags()));
if (SecurityOrigin::allowSubstituteDataAccessToLocal()) {
// If this document was loaded with substituteData, then the document can
// load local resources. See https://bugs.webkit.org/show_bug.cgi?id=16756
// and https://bugs.webkit.org/show_bug.cgi?id=19760 for further
// discussion.
DocumentLoader* documentLoader = m_frame->loader()->documentLoader();
if (documentLoader && documentLoader->substituteData().isValid())
securityOrigin()->grantLoadLocalResources();
}
if (Settings* settings = this->settings()) {
if (!settings->isWebSecurityEnabled()) {
// Web security is turned off. We should let this document access every
// other document. This is used primary by testing harnesses for web
// sites.
securityOrigin()->grantUniversalAccess();
} else if (settings->allowUniversalAccessFromFileURLs() && securityOrigin()->isLocal()) {
// Some clients want file:// URLs to have universal access, but that
// setting is dangerous for other clients.
securityOrigin()->grantUniversalAccess();
}
}
if (!securityOrigin()->isEmpty())
return;
// If we do not obtain a meaningful origin from the URL, then we try to
// find one via the frame hierarchy.
Frame* ownerFrame = m_frame->tree()->parent();
if (!ownerFrame)
ownerFrame = m_frame->loader()->opener();
if (ownerFrame) {
m_cookieURL = ownerFrame->document()->cookieURL();
// We alias the SecurityOrigins to match Firefox, see Bug 15313
// https://bugs.webkit.org/show_bug.cgi?id=15313
ScriptExecutionContext::setSecurityOrigin(ownerFrame->document()->securityOrigin());
}
}
void Document::setSecurityOrigin(SecurityOrigin* securityOrigin)
{
ScriptExecutionContext::setSecurityOrigin(securityOrigin);
// FIXME: Find a better place to enable DNS prefetch, which is a loader concept,
// not applicable to arbitrary documents.
initDNSPrefetch();
}
#if ENABLE(DATABASE)
bool Document::isDatabaseReadOnly() const
{
if (!page() || page()->settings()->privateBrowsingEnabled())
return true;
return false;
}
void Document::databaseExceededQuota(const String& name)
{
Page* currentPage = page();
if (currentPage)
currentPage->chrome()->client()->exceededDatabaseQuota(document()->frame(), name);
}
#endif
bool Document::isContextThread() const
{
return isMainThread();
}
void Document::updateURLForPushOrReplaceState(const KURL& url)
{
Frame* f = frame();
if (!f)
return;
setURL(url);
f->loader()->documentLoader()->replaceRequestURLForSameDocumentNavigation(url);
}
void Document::statePopped(SerializedScriptValue* stateObject)
{
Frame* f = frame();
if (!f)
return;
if (f->loader()->isComplete())
dispatchWindowEvent(PopStateEvent::create(stateObject));
else
m_pendingStateObject = stateObject;
}
void Document::updateFocusAppearanceSoon(bool restorePreviousSelection)
{
m_updateFocusAppearanceRestoresSelection = restorePreviousSelection;
if (!m_updateFocusAppearanceTimer.isActive())
m_updateFocusAppearanceTimer.startOneShot(0);
}
void Document::cancelFocusAppearanceUpdate()
{
m_updateFocusAppearanceTimer.stop();
}
void Document::updateFocusAppearanceTimerFired(Timer<Document>*)
{
Node* node = focusedNode();
if (!node)
return;
if (!node->isElementNode())
return;
updateLayout();
Element* element = static_cast<Element*>(node);
if (element->isFocusable())
element->updateFocusAppearance(m_updateFocusAppearanceRestoresSelection);
}
void Document::executeScriptSoonTimerFired(Timer<Document>* timer)
{
ASSERT_UNUSED(timer, timer == &m_executeScriptSoonTimer);
Vector<pair<ScriptElementData*, CachedResourceHandle<CachedScript> > > scripts;
scripts.swap(m_scriptsToExecuteSoon);
size_t size = scripts.size();
for (size_t i = 0; i < size; ++i) {
scripts[i].first->execute(scripts[i].second.get());
scripts[i].first->element()->deref(); // Balances ref() in executeScriptSoon().
}
}
void Document::executeScriptSoon(ScriptElementData* data, CachedResourceHandle<CachedScript> cachedScript)
{
ASSERT_ARG(data, data);
Element* element = data->element();
ASSERT(element);
ASSERT(element->document() == this);
ASSERT(element->inDocument());
m_scriptsToExecuteSoon.append(make_pair(data, cachedScript));
element->ref(); // Balanced by deref()s in executeScriptSoonTimerFired() and ~Document().
if (!m_executeScriptSoonTimer.isActive())
m_executeScriptSoonTimer.startOneShot(0);
}
// FF method for accessing the selection added for compatibility.
DOMSelection* Document::getSelection() const
{
return frame() ? frame()->domWindow()->getSelection() : 0;
}
#if ENABLE(WML)
void Document::resetWMLPageState()
{
if (WMLPageState* pageState = wmlPageStateForDocument(this))
pageState->reset();
}
void Document::initializeWMLPageState()
{
if (!isWMLDocument())
return;
static_cast<WMLDocument*>(this)->initialize();
}
#endif
void Document::attachRange(Range* range)
{
ASSERT(!m_ranges.contains(range));
m_ranges.add(range);
}
void Document::detachRange(Range* range)
{
// We don't ASSERT m_ranges.contains(range) to allow us to call this
// unconditionally to fix: https://bugs.webkit.org/show_bug.cgi?id=26044
m_ranges.remove(range);
}
CanvasRenderingContext* Document::getCSSCanvasContext(const String& type, const String& name, int width, int height)
{
HTMLCanvasElement* result = getCSSCanvasElement(name);
if (!result)
return 0;
result->setSize(IntSize(width, height));
return result->getContext(type);
}
HTMLCanvasElement* Document::getCSSCanvasElement(const String& name)
{
RefPtr<HTMLCanvasElement> result = m_cssCanvasElements.get(name).get();
if (!result) {
result = new HTMLCanvasElement(canvasTag, this);
m_cssCanvasElements.set(name, result);
}
return result.get();
}
void Document::initDNSPrefetch()
{
m_haveExplicitlyDisabledDNSPrefetch = false;
m_isDNSPrefetchEnabled = securityOrigin()->protocol() == "http";
// Inherit DNS prefetch opt-out from parent frame
if (Document* parent = parentDocument()) {
if (!parent->isDNSPrefetchEnabled())
m_isDNSPrefetchEnabled = false;
}
}
void Document::parseDNSPrefetchControlHeader(const String& dnsPrefetchControl)
{
if (equalIgnoringCase(dnsPrefetchControl, "on") && !m_haveExplicitlyDisabledDNSPrefetch) {
m_isDNSPrefetchEnabled = true;
return;
}
m_isDNSPrefetchEnabled = false;
m_haveExplicitlyDisabledDNSPrefetch = true;
}
void Document::reportException(const String& errorMessage, int lineNumber, const String& sourceURL)
{
if (DOMWindow* window = domWindow())
window->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, errorMessage, lineNumber, sourceURL);
}
void Document::addMessage(MessageDestination destination, MessageSource source, MessageType type, MessageLevel level, const String& message, unsigned lineNumber, const String& sourceURL)
{
switch (destination) {
#if ENABLE(INSPECTOR)
case InspectorControllerDestination:
if (page())
page()->inspectorController()->addMessageToConsole(source, type, level, message, lineNumber, sourceURL);
return;
#endif
case ConsoleDestination:
if (DOMWindow* window = domWindow())
window->console()->addMessage(source, type, level, message, lineNumber, sourceURL);
return;
}
ASSERT_NOT_REACHED();
}
void Document::resourceRetrievedByXMLHttpRequest(unsigned long identifier, const ScriptString& sourceString)
{
#if ENABLE(INSPECTOR)
if (page())
page()->inspectorController()->resourceRetrievedByXMLHttpRequest(identifier, sourceString);
#endif
Frame* frame = this->frame();
if (frame) {
FrameLoader* frameLoader = frame->loader();
frameLoader->notifier()->didLoadResourceByXMLHttpRequest(identifier, sourceString);
}
}
void Document::scriptImported(unsigned long identifier, const String& sourceString)
{
#if ENABLE(INSPECTOR)
if (page())
page()->inspectorController()->scriptImported(identifier, sourceString);
#else
UNUSED_PARAM(identifier);
UNUSED_PARAM(sourceString);
#endif
}
class ScriptExecutionContextTaskTimer : public TimerBase {
public:
ScriptExecutionContextTaskTimer(PassRefPtr<Document> context, PassOwnPtr<ScriptExecutionContext::Task> task)
: m_context(context)
, m_task(task)
{
}
private:
virtual void fired()
{
m_task->performTask(m_context.get());
delete this;
}
RefPtr<Document> m_context;
OwnPtr<ScriptExecutionContext::Task> m_task;
};
struct PerformTaskContext : Noncopyable {
PerformTaskContext(PassRefPtr<DocumentWeakReference> documentReference, PassOwnPtr<ScriptExecutionContext::Task> task)
: documentReference(documentReference)
, task(task)
{
}
RefPtr<DocumentWeakReference> documentReference;
OwnPtr<ScriptExecutionContext::Task> task;
};
static void performTask(void* ctx)
{
ASSERT(isMainThread());
PerformTaskContext* context = reinterpret_cast<PerformTaskContext*>(ctx);
ASSERT(context);
if (Document* document = context->documentReference->document())
context->task->performTask(document);
delete context;
}
void Document::postTask(PassOwnPtr<Task> task)
{
if (isMainThread()) {
ScriptExecutionContextTaskTimer* timer = new ScriptExecutionContextTaskTimer(static_cast<Document*>(this), task);
timer->startOneShot(0);
} else {
callOnMainThread(performTask, new PerformTaskContext(m_weakReference, task));
}
}
Element* Document::findAnchor(const String& name)
{
if (name.isEmpty())
return 0;
if (Element* element = getElementById(name))
return element;
for (Node* node = this; node; node = node->traverseNextNode()) {
if (node->hasTagName(aTag)) {
HTMLAnchorElement* anchor = static_cast<HTMLAnchorElement*>(node);
if (inCompatMode()) {
// Quirks mode, case insensitive comparison of names.
if (equalIgnoringCase(anchor->name(), name))
return anchor;
} else {
// Strict mode, names need to match exactly.
if (anchor->name() == name)
return anchor;
}
}
}
return 0;
}
String Document::displayStringModifiedByEncoding(const String& str) const
{
if (m_decoder)
return m_decoder->encoding().displayString(str.impl());
return str;
}
PassRefPtr<StringImpl> Document::displayStringModifiedByEncoding(PassRefPtr<StringImpl> str) const
{
if (m_decoder)
return m_decoder->encoding().displayString(str);
return str;
}
void Document::displayBufferModifiedByEncoding(UChar* buffer, unsigned len) const
{
if (m_decoder)
m_decoder->encoding().displayBuffer(buffer, len);
}
#if ENABLE(XHTMLMP)
bool Document::isXHTMLMPDocument() const
{
if (!frame() || !frame()->loader())
return false;
// As per section 7.2 of OMA-WAP-XHTMLMP-V1_1-20061020-A.pdf, a conforming user agent
// MUST accept XHTMLMP document identified as "application/vnd.wap.xhtml+xml"
// and SHOULD accept it identified as "application/xhtml+xml"
return frame()->loader()->responseMIMEType() == "application/vnd.wap.xhtml+xml" || frame()->loader()->responseMIMEType() == "application/xhtml+xml";
}
#endif
#if ENABLE(INSPECTOR)
InspectorTimelineAgent* Document::inspectorTimelineAgent() const
{
return page() ? page()->inspectorTimelineAgent() : 0;
}
#endif
} // namespace WebCore