C++程序
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5086行
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158.65 KB
/*
* 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, 2011 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.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "Document.h"
#include "AXObjectCache.h"
#include "AnimationController.h"
#include "Attr.h"
#include "Attribute.h"
#include "CDATASection.h"
#include "CSSPrimitiveValueCache.h"
#include "CSSStyleSelector.h"
#include "CSSStyleSheet.h"
#include "CSSValueKeywords.h"
#include "CachedCSSStyleSheet.h"
#include "CachedResourceLoader.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "Comment.h"
#include "Console.h"
#include "ContentSecurityPolicy.h"
#include "CookieJar.h"
#include "CustomEvent.h"
#include "DateComponents.h"
#include "DOMImplementation.h"
#include "DOMWindow.h"
#include "DeviceMotionEvent.h"
#include "DeviceOrientationEvent.h"
#include "DocumentFragment.h"
#include "DocumentLoader.h"
#include "DocumentMarkerController.h"
#include "DocumentType.h"
#include "EditingText.h"
#include "Editor.h"
#include "Element.h"
#include "EntityReference.h"
#include "Event.h"
#include "EventHandler.h"
#include "EventListener.h"
#include "EventNames.h"
#include "EventQueue.h"
#include "ExceptionCode.h"
#include "FocusController.h"
#include "FormAssociatedElement.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "HashChangeEvent.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 "HTMLParserIdioms.h"
#include "HTMLStyleElement.h"
#include "HTMLTitleElement.h"
#include "HTTPParsers.h"
#include "HitTestRequest.h"
#include "HitTestResult.h"
#include "ImageLoader.h"
#include "InspectorInstrumentation.h"
#include "KeyboardEvent.h"
#include "Logging.h"
#include "MediaQueryList.h"
#include "MediaQueryMatcher.h"
#include "MessageEvent.h"
#include "MouseEvent.h"
#include "MouseEventWithHitTestResults.h"
#include "MutationEvent.h"
#include "NameNodeList.h"
#include "NestingLevelIncrementer.h"
#include "NodeFilter.h"
#include "NodeIterator.h"
#include "NodeWithIndex.h"
#include "OverflowEvent.h"
#include "Page.h"
#include "PageGroup.h"
#include "PageTransitionEvent.h"
#include "PlatformKeyboardEvent.h"
#include "PopStateEvent.h"
#include "ProcessingInstruction.h"
#include "ProgressEvent.h"
#include "RegisteredEventListener.h"
#include "RenderArena.h"
#include "RenderLayer.h"
#include "RenderLayerBacking.h"
#include "RenderTextControl.h"
#include "RenderView.h"
#include "RenderWidget.h"
#include "ScopedEventQueue.h"
#include "ScriptCallStack.h"
#include "ScriptController.h"
#include "ScriptElement.h"
#include "ScriptEventListener.h"
#include "ScriptRunner.h"
#include "SecurityOrigin.h"
#include "SegmentedString.h"
#include "SelectionController.h"
#include "Settings.h"
#include "StaticHashSetNodeList.h"
#include "StyleSheetList.h"
#include "TextEvent.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 "XMLDocumentParser.h"
#include "XMLHttpRequest.h"
#include "XMLNSNames.h"
#include "XMLNames.h"
#include "htmlediting.h"
#include <wtf/CurrentTime.h>
#include <wtf/HashFunctions.h>
#include <wtf/MainThread.h>
#include <wtf/PassRefPtr.h>
#include <wtf/StdLibExtras.h>
#include <wtf/text/StringBuffer.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(SVG)
#include "SVGDocumentExtensions.h"
#include "SVGElementFactory.h"
#include "SVGNames.h"
#include "SVGStyleElement.h"
#include "SVGZoomEvent.h"
#endif
#ifdef ANDROID_META_SUPPORT
#include "PlatformBridge.h"
#include "Settings.h"
#endif
#if ENABLE(TOUCH_EVENTS)
#if USE(V8)
#include "RuntimeEnabledFeatures.h"
#endif
#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
#if ENABLE(FULLSCREEN_API)
#include "RenderFullScreen.h"
#endif
#if ENABLE(REQUEST_ANIMATION_FRAME)
#include "RequestAnimationFrameCallback.h"
#include "ScriptedAnimationController.h"
#endif
using namespace std;
using namespace WTF;
using namespace Unicode;
namespace WebCore {
using namespace HTMLNames;
// #define INSTRUMENT_LAYOUT_SCHEDULING 1
static const unsigned cMaxWriteRecursionDepth = 21;
// 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;
// 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->rendererIsEditable());
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)
{
// This check is made on super-hot code paths, so we only want this on Tiger and Leopard.
#if defined(TARGETING_TIGER) || defined(TARGETING_LEOPARD)
// Disable Range mutation on document modifications in Tiger and Leopard Mail
// See <rdar://problem/5865171>
return page && (page->settings()->needsLeopardMailQuirks() || page->settings()->needsTigerMailQuirks());
#else
UNUSED_PARAM(page);
return false;
#endif
}
static HashSet<Document*>* documentsThatNeedStyleRecalc = 0;
class DocumentWeakReference : public ThreadSafeRefCounted<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;
};
uint64_t Document::s_globalTreeVersion = 0;
Document::Document(Frame* frame, const KURL& url, bool isXHTML, bool isHTML)
: TreeScope(this)
, m_guardRefCount(0)
, m_compatibilityMode(NoQuirksMode)
, m_compatibilityModeLocked(false)
, m_domTreeVersion(++s_globalTreeVersion)
, m_styleSheets(StyleSheetList::create(this))
, m_readyState(Complete)
, m_styleRecalcTimer(this, &Document::styleRecalcTimerFired)
, m_pendingStyleRecalcShouldForce(false)
, m_frameElementsShouldIgnoreScrolling(false)
, m_containsValidityStyleRules(false)
, m_updateFocusAppearanceRestoresSelection(false)
, m_ignoreDestructiveWriteCount(0)
, m_titleSetExplicitly(false)
, m_updateFocusAppearanceTimer(this, &Document::updateFocusAppearanceTimerFired)
, m_startTime(currentTime())
, m_overMinimumLayoutThreshold(false)
, m_extraLayoutDelay(0)
, m_scriptRunner(ScriptRunner::create(this))
, m_xmlVersion("1.0")
, m_xmlStandalone(false)
, m_savedRenderer(0)
, m_designMode(inherit)
#if ENABLE(SVG)
, m_svgExtensions(0)
#endif
#if ENABLE(DASHBOARD_SUPPORT)
, m_hasDashboardRegions(false)
, m_dashboardRegionsDirty(false)
#endif
, m_createRenderers(true)
, m_inPageCache(false)
, m_useSecureKeyboardEntryWhenActive(false)
, m_isXHTML(isXHTML)
, m_isHTML(isHTML)
, m_usesViewSourceStyles(false)
, m_sawElementsInKnownNamespaces(false)
, m_usingGeolocation(false)
, m_eventQueue(EventQueue::create(this))
#if ENABLE(WML)
, m_containsWMLContent(false)
#endif
, m_weakReference(DocumentWeakReference::create(this))
, m_idAttributeName(idAttr)
#if ENABLE(FULLSCREEN_API)
, m_areKeysEnabledInFullScreen(0)
, m_fullScreenRenderer(0)
, m_fullScreenChangeDelayTimer(this, &Document::fullScreenChangeDelayTimerFired)
#endif
, m_loadEventDelayCount(0)
, m_loadEventDelayTimer(this, &Document::loadEventDelayTimerFired)
, m_directionSetOnDocumentElement(false)
, m_writingModeSetOnDocumentElement(false)
, m_writeRecursionIsTooDeep(false)
, m_writeRecursionDepth(0)
{
m_document = this;
m_pageGroupUserSheetCacheValid = false;
m_printing = false;
m_paginatedForScreen = false;
m_ignoreAutofocus = false;
m_frame = frame;
// We depend on the url getting immediately set in subframes, but we
// also depend on the url NOT getting immediately set in opened windows.
// See fast/dom/early-frame-url.html
// and fast/dom/location-new-window-no-crash.html, respectively.
// FIXME: Can/should we unify this behavior?
if ((frame && frame->ownerElement()) || !url.isEmpty())
setURL(url);
#if !PLATFORM(ANDROID)
m_axObjectCache = 0;
#endif
m_markers = new DocumentMarkerController();
m_cachedResourceLoader = new CachedResourceLoader(this);
m_visuallyOrdered = false;
m_bParsing = false;
m_wellFormed = false;
m_textColor = Color::black;
m_listenerTypes = 0;
setInDocument();
m_inStyleRecalc = false;
m_closeAfterStyleRecalc = false;
m_usesSiblingRules = false;
m_usesSiblingRulesOverride = false;
m_usesFirstLineRules = false;
m_usesFirstLetterRules = false;
m_usesBeforeAfterRules = false;
m_usesBeforeAfterRulesOverride = false;
m_usesRemUnits = false;
m_usesLinkRules = false;
m_gotoAnchorNeededAfterStylesheetsLoad = false;
m_didCalculateStyleSelector = false;
m_hasDirtyStyleSelector = false;
m_pendingStylesheets = 0;
m_ignorePendingStylesheets = false;
m_hasNodesWithPlaceholderStyle = false;
m_pendingSheetLayout = NoLayoutWithPendingSheets;
m_cssTarget = 0;
resetLinkColor();
resetVisitedLinkColor();
resetActiveLinkColor();
m_processingLoadEvent = false;
initSecurityContext();
initDNSPrefetch();
static int docID = 0;
m_docID = docID++;
#if ENABLE(XHTMLMP)
m_shouldProcessNoScriptElement = !(m_frame && m_frame->script()->canExecuteScripts(NotAboutToExecuteScript));
#endif
}
Document::~Document()
{
ASSERT(!renderer());
ASSERT(!m_inPageCache);
ASSERT(!m_savedRenderer);
ASSERT(m_ranges.isEmpty());
ASSERT(!m_styleRecalcTimer.isActive());
ASSERT(!m_parentTreeScope);
m_scriptRunner.clear();
removeAllEventListeners();
// Currently we believe that Document can never outlive the parser.
// Although the Document may be replaced synchronously, DocumentParsers
// generally keep at least one reference to an Element which would in turn
// has a reference to the Document. If you hit this ASSERT, then that
// assumption is wrong. DocumentParser::detach() should ensure that even
// if the DocumentParser outlives the Document it won't cause badness.
ASSERT(!m_parser || m_parser->refCount() == 1);
detachParser();
m_document = 0;
m_cachedResourceLoader.clear();
m_renderArena.clear();
clearAXObjectCache();
m_decoder = 0;
for (size_t i = 0; i < m_nameCollectionInfo.size(); ++i)
deleteAllValues(m_nameCollectionInfo[i]);
if (m_styleSheets)
m_styleSheets->documentDestroyed();
if (m_elemSheet)
m_elemSheet->clearOwnerNode();
if (m_mappedElementSheet)
m_mappedElementSheet->clearOwnerNode();
if (m_pageUserSheet)
m_pageUserSheet->clearOwnerNode();
if (m_pageGroupUserSheets) {
for (size_t i = 0; i < m_pageGroupUserSheets->size(); ++i)
(*m_pageGroupUserSheets)[i]->clearOwnerNode();
}
deleteRetiredCustomFonts();
m_weakReference->clear();
if (m_mediaQueryMatcher)
m_mediaQueryMatcher->documentDestroyed();
if (m_implementation)
m_implementation->ownerDocumentDestroyed();
}
void Document::removedLastRef()
{
ASSERT(!m_deletionHasBegun);
if (m_guardRefCount) {
// If removing a child removes the last self-only ref, we don't
// want the scope to be destructed until after
// removeAllChildren returns, so we guard ourselves with an
// extra self-only ref.
guardRef();
// 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;
#if ENABLE(FULLSCREEN_API)
m_fullScreenElement = 0;
#endif
// removeAllChildren() doesn't always unregister IDs,
// so tear down scope information upfront to avoid having stale references in the map.
destroyTreeScopeData();
removeAllChildren();
m_markers->detach();
detachParser();
m_cssCanvasElements.clear();
#if ENABLE(REQUEST_ANIMATION_FRAME)
// FIXME: consider using ActiveDOMObject.
m_scriptedAnimationController = 0;
#endif
#ifndef NDEBUG
m_inRemovedLastRefFunction = false;
#endif
guardDeref();
} else {
#ifndef NDEBUG
m_deletionHasBegun = true;
#endif
delete this;
}
}
Element* Document::getElementById(const AtomicString& id) const
{
return TreeScope::getElementById(id);
}
MediaQueryMatcher* Document::mediaQueryMatcher()
{
if (!m_mediaQueryMatcher)
m_mediaQueryMatcher = MediaQueryMatcher::create(this);
return m_mediaQueryMatcher.get();
}
void Document::setCompatibilityMode(CompatibilityMode mode)
{
if (m_compatibilityModeLocked || mode == m_compatibilityMode)
return;
ASSERT(!documentElement() && !m_styleSheets->length());
bool wasInQuirksMode = inQuirksMode();
m_compatibilityMode = mode;
if (inQuirksMode() != wasInQuirksMode) {
// All user stylesheets have to reparse using the different mode.
clearPageUserSheet();
clearPageGroupUserSheets();
}
}
String Document::compatMode() const
{
return inQuirksMode() ? "BackCompat" : "CSS1Compat";
}
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.
ASSERT(!m_docType || !docType);
m_docType = docType;
if (m_docType)
m_docType->setTreeScope(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
processViewport("width=device-width");
}
#endif
}
DOMImplementation* Document::implementation()
{
if (!m_implementation)
m_implementation = DOMImplementation::create(this);
return m_implementation.get();
}
void Document::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
TreeScope::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);
m_documentElement = firstElementChild(this);
}
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;
}
EventQueueScope scope;
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)) {
HTMLIFrameElement* iframe = static_cast<HTMLIFrameElement*>(source.get());
if (frame() && frame()->tree()->isDescendantOf(iframe->contentFrame())) {
ec = HIERARCHY_REQUEST_ERR;
return 0;
}
iframe->setRemainsAliveOnRemovalFromTree(attached() && source->attached());
}
if (source->parentNode())
source->parentNode()->removeChild(source.get(), ec);
}
source->setTreeScopeRecursively(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)
m_sawElementsInKnownNamespaces = true;
else
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);
}
String Document::readyState() const
{
DEFINE_STATIC_LOCAL(const String, loading, ("loading"));
DEFINE_STATIC_LOCAL(const String, interactive, ("interactive"));
DEFINE_STATIC_LOCAL(const String, complete, ("complete"));
switch (m_readyState) {
case Loading:
return loading;
case Interactive:
return interactive;
case Complete:
return complete;
}
ASSERT_NOT_REACHED();
return String();
}
void Document::setReadyState(ReadyState readyState)
{
if (readyState == m_readyState)
return;
switch (readyState) {
case Loading:
if (!m_documentTiming.domLoading)
m_documentTiming.domLoading = currentTime();
break;
case Interactive:
if (!m_documentTiming.domInteractive)
m_documentTiming.domInteractive = currentTime();
break;
case Complete:
if (!m_documentTiming.domComplete)
m_documentTiming.domComplete = currentTime();
break;
}
m_readyState = readyState;
dispatchEvent(Event::create(eventNames().readystatechangeEvent, false, false));
}
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;
}
if (!XMLDocumentParser::supportsXMLVersion(version)) {
ec = NOT_SUPPORTED_ERR;
return;
}
m_xmlVersion = version;
}
void Document::setXMLStandalone(bool standalone, ExceptionCode& ec)
{
if (!implementation()->hasFeature("XML", String())) {
ec = NOT_SUPPORTED_ERR;
return;
}
m_xmlStandalone = standalone;
}
void Document::setDocumentURI(const String& uri)
{
m_documentURI = uri;
updateBaseURL();
}
KURL Document::baseURI() const
{
return m_baseURL;
}
void Document::setContent(const String& content)
{
open();
m_parser->append(content);
close();
}
// FIXME: We need to discuss the DOM API here at some point. Ideas:
// * making it receive a rect as parameter, i.e. nodesFromRect(x, y, w, h);
// * making it receive the expading size of each direction separately,
// i.e. nodesFromRect(x, y, topSize, rightSize, bottomSize, leftSize);
PassRefPtr<NodeList> Document::nodesFromRect(int centerX, int centerY, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding, bool ignoreClipping) const
{
// FIXME: Share code between this, elementFromPoint and caretRangeFromPoint.
if (!renderer())
return 0;
Frame* frame = this->frame();
if (!frame)
return 0;
FrameView* frameView = frame->view();
if (!frameView)
return 0;
float zoomFactor = frame->pageZoomFactor();
IntPoint point = roundedIntPoint(FloatPoint(centerX * zoomFactor + view()->scrollX(), centerY * zoomFactor + view()->scrollY()));
int type = HitTestRequest::ReadOnly | HitTestRequest::Active;
// When ignoreClipping is false, this method returns null for coordinates outside of the viewport.
if (ignoreClipping)
type |= HitTestRequest::IgnoreClipping;
else if (!frameView->visibleContentRect().intersects(HitTestResult::rectForPoint(point, topPadding, rightPadding, bottomPadding, leftPadding)))
return 0;
HitTestRequest request(type);
// Passing a zero padding will trigger a rect hit test, however for the purposes of nodesFromRect,
// we special handle this case in order to return a valid NodeList.
if (!topPadding && !rightPadding && !bottomPadding && !leftPadding) {
HitTestResult result(point);
return handleZeroPadding(request, result);
}
HitTestResult result(point, topPadding, rightPadding, bottomPadding, leftPadding);
renderView()->layer()->hitTest(request, result);
return StaticHashSetNodeList::adopt(result.rectBasedTestResult());
}
PassRefPtr<NodeList> Document::handleZeroPadding(const HitTestRequest& request, HitTestResult& result) const
{
renderView()->layer()->hitTest(request, result);
Node* node = result.innerNode();
if (!node)
return 0;
node = node->shadowAncestorNode();
ListHashSet<RefPtr<Node> > list;
list.add(node);
return StaticHashSetNodeList::adopt(list);
}
static Node* nodeFromPoint(Frame* frame, RenderView* renderView, int x, int y, IntPoint* localPoint = 0)
{
if (!frame)
return 0;
FrameView* frameView = frame->view();
if (!frameView)
return 0;
float zoomFactor = frame->pageZoomFactor();
IntPoint point = roundedIntPoint(FloatPoint(x * zoomFactor + frameView->scrollX(), y * zoomFactor + frameView->scrollY()));
if (!frameView->visibleContentRect().contains(point))
return 0;
HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active);
HitTestResult result(point);
renderView->layer()->hitTest(request, result);
if (localPoint)
*localPoint = result.localPoint();
return result.innerNode();
}
Element* Document::elementFromPoint(int x, int y) const
{
if (!renderer())
return 0;
Node* node = nodeFromPoint(frame(), renderView(), x, y);
while (node && !node->isElementNode())
node = node->parentNode();
if (node)
node = node->shadowAncestorNode();
return static_cast<Element*>(node);
}
PassRefPtr<Range> Document::caretRangeFromPoint(int x, int y)
{
if (!renderer())
return 0;
IntPoint localPoint;
Node* node = nodeFromPoint(frame(), renderView(), x, y, &localPoint);
if (!node)
return 0;
Node* shadowAncestorNode = node->shadowAncestorNode();
if (shadowAncestorNode != node) {
unsigned offset = shadowAncestorNode->nodeIndex();
ContainerNode* container = shadowAncestorNode->parentNode();
return Range::create(this, container, offset, container, offset);
}
RenderObject* renderer = node->renderer();
if (!renderer)
return 0;
VisiblePosition visiblePosition = renderer->positionForPoint(localPoint);
if (visiblePosition.isNull())
return 0;
Position rangeCompliantPosition = visiblePosition.deepEquivalent().parentAnchoredEquivalent();
return Range::create(this, rangeCompliantPosition, rangeCompliantPosition);
}
/*
* Performs three operations:
* 1. Convert control characters to spaces
* 2. Trim leading and trailing spaces
* 3. Collapse internal whitespace.
*/
static inline StringWithDirection canonicalizedTitle(Document* document, const StringWithDirection& titleWithDirection)
{
const String& title = titleWithDirection.string();
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 StringWithDirection();
// 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 StringWithDirection();
buffer.shrink(builderIndex + 1);
// Replace the backslashes with currency symbols if the encoding requires it.
document->displayBufferModifiedByEncoding(buffer.characters(), buffer.length());
return StringWithDirection(String::adopt(buffer), titleWithDirection.direction());
}
void Document::updateTitle(const StringWithDirection& title)
{
if (m_rawTitle == title)
return;
m_rawTitle = title;
m_title = canonicalizedTitle(this, m_rawTitle);
if (Frame* f = frame())
f->loader()->setTitle(m_title);
}
void Document::setTitle(const String& title)
{
// 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);
}
}
// The DOM API has no method of specifying direction, so assume LTR.
updateTitle(StringWithDirection(title, LTR));
if (m_titleElement) {
ASSERT(m_titleElement->hasTagName(titleTag));
if (m_titleElement->hasTagName(titleTag))
static_cast<HTMLTitleElement*>(m_titleElement.get())->setText(title);
}
}
void Document::setTitleElement(const StringWithDirection& title, Element* titleElement)
{
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;
}
updateTitle(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);
setTitleElement(titleElement->textWithDirection(), titleElement);
break;
}
}
if (!m_titleElement)
updateTitle(StringWithDirection());
}
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::scheduleForcedStyleRecalc()
{
m_pendingStyleRecalcShouldForce = true;
scheduleStyleRecalc();
}
void Document::scheduleStyleRecalc()
{
if (m_styleRecalcTimer.isActive() || inPageCache())
return;
ASSERT(childNeedsStyleRecalc() || m_pendingStyleRecalcShouldForce);
if (!documentsThatNeedStyleRecalc)
documentsThatNeedStyleRecalc = new HashSet<Document*>;
documentsThatNeedStyleRecalc->add(this);
// FIXME: Why on earth is this here? This is clearly misplaced.
invalidateAccessKeyMap();
m_styleRecalcTimer.startOneShot(0);
}
void Document::unscheduleStyleRecalc()
{
ASSERT(!childNeedsStyleRecalc());
if (documentsThatNeedStyleRecalc)
documentsThatNeedStyleRecalc->remove(this);
m_styleRecalcTimer.stop();
m_pendingStyleRecalcShouldForce = false;
}
bool Document::isPendingStyleRecalc() const
{
return m_styleRecalcTimer.isActive() && !m_inStyleRecalc;
}
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 (m_hasDirtyStyleSelector)
recalcStyleSelector();
InspectorInstrumentationCookie cookie = InspectorInstrumentation::willRecalculateStyle(this);
m_inStyleRecalc = true;
suspendPostAttachCallbacks();
RenderWidget::suspendWidgetHierarchyUpdates();
RefPtr<FrameView> frameView = view();
if (frameView) {
frameView->pauseScheduledEvents();
frameView->beginDeferredRepaints();
}
ASSERT(!renderer() || renderArena());
if (!renderer() || !renderArena())
goto bail_out;
if (m_pendingStyleRecalcShouldForce)
change = Force;
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);
// FIXME: Disabling the deletion of retired custom font data until
// we fix all the stale style bugs (68804, 68624, etc). These bugs
// indicate problems where some styles were not updated in recalcStyle,
// thereby retaining stale copy of font data. To prevent that, we
// disable this code for now and only delete retired custom font data
// in Document destructor.
// Now that all RenderStyles that pointed to retired fonts have been updated, the fonts can safely be deleted.
// deleteRetiredCustomFonts();
#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:
clearNeedsStyleRecalc();
clearChildNeedsStyleRecalc();
unscheduleStyleRecalc();
m_inStyleRecalc = false;
// Pseudo element removal and similar may only work with these flags still set. Reset them after the style recalc.
if (m_styleSelector) {
m_usesSiblingRules = m_styleSelector->usesSiblingRules();
m_usesFirstLineRules = m_styleSelector->usesFirstLineRules();
m_usesBeforeAfterRules = m_styleSelector->usesBeforeAfterRules();
m_usesLinkRules = m_styleSelector->usesLinkRules();
}
if (frameView) {
frameView->resumeScheduledEvents();
frameView->endDeferredRepaints();
}
RenderWidget::resumeWidgetHierarchyUpdates();
resumePostAttachCallbacks();
// If we wanted to call implicitClose() during recalcStyle, do so now that we're finished.
if (m_closeAfterStyleRecalc) {
m_closeAfterStyleRecalc = false;
implicitClose();
}
InspectorInstrumentation::didRecalculateStyle(cookie);
}
void Document::updateStyleIfNeeded()
{
ASSERT(isMainThread());
ASSERT(!view() || (!view()->isInLayout() && !view()->isPainting()));
if ((!m_pendingStyleRecalcShouldForce && !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()
{
ASSERT(isMainThread());
if (!documentsThatNeedStyleRecalc)
return;
while (documentsThatNeedStyleRecalc->size()) {
HashSet<Document*>::iterator it = documentsThatNeedStyleRecalc->begin();
Document* doc = *it;
documentsThatNeedStyleRecalc->remove(doc);
doc->updateStyleIfNeeded();
}
}
void Document::updateLayout()
{
ASSERT(isMainThread());
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;
styleSelectorChanged(RecalcStyleImmediately);
} else if (m_hasNodesWithPlaceholderStyle)
// If new nodes have been added or style recalc has been done with style sheets still pending, some nodes
// may not have had their real style calculated yet. Normally this gets cleaned when style sheets arrive
// but here we need up-to-date style immediately.
recalcStyle(Force);
}
updateLayout();
m_ignorePendingStylesheets = oldIgnore;
}
PassRefPtr<RenderStyle> Document::styleForElementIgnoringPendingStylesheets(Element* element)
{
ASSERT_ARG(element, element->document() == this);
bool oldIgnore = m_ignorePendingStylesheets;
m_ignorePendingStylesheets = true;
RefPtr<RenderStyle> style = styleSelector()->styleForElement(element, element->parentNode() ? element->parentNode()->computedStyle() : 0);
m_ignorePendingStylesheets = oldIgnore;
return style.release();
}
PassRefPtr<RenderStyle> Document::styleForPage(int pageIndex)
{
RefPtr<RenderStyle> style = styleSelector()->styleForPage(pageIndex);
return style.release();
}
void Document::retireCustomFont(FontData* fontData)
{
m_retiredCustomFonts.append(adoptPtr(fontData));
}
void Document::deleteRetiredCustomFonts()
{
size_t size = m_retiredCustomFonts.size();
for (size_t i = 0; i < size; ++i)
GlyphPageTreeNode::pruneTreeCustomFontData(m_retiredCustomFonts[i].get());
m_retiredCustomFonts.clear();
}
bool Document::isPageBoxVisible(int pageIndex)
{
RefPtr<RenderStyle> style = styleForPage(pageIndex);
return style->visibility() != HIDDEN; // display property doesn't apply to @page.
}
void Document::pageSizeAndMarginsInPixels(int pageIndex, IntSize& pageSize, int& marginTop, int& marginRight, int& marginBottom, int& marginLeft)
{
RefPtr<RenderStyle> style = styleForPage(pageIndex);
int width = pageSize.width();
int height = pageSize.height();
switch (style->pageSizeType()) {
case PAGE_SIZE_AUTO:
break;
case PAGE_SIZE_AUTO_LANDSCAPE:
if (width < height)
std::swap(width, height);
break;
case PAGE_SIZE_AUTO_PORTRAIT:
if (width > height)
std::swap(width, height);
break;
case PAGE_SIZE_RESOLVED: {
LengthSize size = style->pageSize();
ASSERT(size.width().isFixed());
ASSERT(size.height().isFixed());
width = size.width().calcValue(0);
height = size.height().calcValue(0);
break;
}
default:
ASSERT_NOT_REACHED();
}
pageSize = IntSize(width, height);
// The percentage is calculated with respect to the width even for margin top and bottom.
// http://www.w3.org/TR/CSS2/box.html#margin-properties
marginTop = style->marginTop().isAuto() ? marginTop : style->marginTop().calcValue(width);
marginRight = style->marginRight().isAuto() ? marginRight : style->marginRight().calcValue(width);
marginBottom = style->marginBottom().isAuto() ? marginBottom : style->marginBottom().calcValue(width);
marginLeft = style->marginLeft().isAuto() ? marginLeft : style->marginLeft().calcValue(width);
}
PassRefPtr<CSSPrimitiveValueCache> Document::cssPrimitiveValueCache() const
{
if (!m_cssPrimitiveValueCache)
m_cssPrimitiveValueCache = CSSPrimitiveValueCache::create();
return m_cssPrimitiveValueCache;
}
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(),
!inQuirksMode(), matchAuthorAndUserStyles));
// Delay resetting the flags until after next style recalc since unapplying the style may not work without these set (this is true at least with before/after).
m_usesSiblingRules = m_usesSiblingRules || m_styleSelector->usesSiblingRules();
m_usesFirstLineRules = m_usesFirstLineRules || m_styleSelector->usesFirstLineRules();
m_usesBeforeAfterRules = m_usesBeforeAfterRules || m_styleSelector->usesBeforeAfterRules();
m_usesLinkRules = m_usesLinkRules || m_styleSelector->usesLinkRules();
}
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);
TreeScope::attach();
setRenderer(render);
}
void Document::detach()
{
ASSERT(attached());
ASSERT(!m_inPageCache);
clearAXObjectCache();
stopActiveDOMObjects();
m_eventQueue->cancelQueuedEvents();
#if ENABLE(REQUEST_ANIMATION_FRAME)
// FIXME: consider using ActiveDOMObject.
m_scriptedAnimationController = 0;
#endif
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);
#if ENABLE(FULLSCREEN_API)
if (m_fullScreenRenderer)
setFullScreenRenderer(0);
#endif
m_hoverNode = 0;
m_focusedNode = 0;
m_activeNode = 0;
TreeScope::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) {
// Clear the cache member variable before calling delete because attempts
// are made to access it during destruction.
AXObjectCache* axObjectCache = m_axObjectCache;
m_axObjectCache = 0;
delete axObjectCache;
return;
}
// ask the top-level document to clear its cache
Document* doc = topDocument();
if (doc != this)
doc->clearAXObjectCache();
#endif
}
bool Document::axObjectCacheExists() const
{
#if PLATFORM(ANDROID)
return false;
#else
if (m_axObjectCache)
return true;
Document* doc = topDocument();
if (doc != this)
return doc->axObjectCacheExists();
return false;
#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(this);
return m_axObjectCache;
#endif // ANDROID
}
void Document::setVisuallyOrdered()
{
m_visuallyOrdered = true;
if (renderer())
renderer()->style()->setVisuallyOrdered(true);
}
PassRefPtr<DocumentParser> Document::createParser()
{
// FIXME: this should probably pass the frame instead
return XMLDocumentParser::create(this, view());
}
ScriptableDocumentParser* Document::scriptableDocumentParser() const
{
return parser() ? parser()->asScriptableDocumentParser() : 0;
}
void Document::open(Document* ownerDocument)
{
if (ownerDocument) {
setURL(ownerDocument->url());
m_cookieURL = ownerDocument->cookieURL();
ScriptExecutionContext::setSecurityOrigin(ownerDocument->securityOrigin());
}
if (m_frame) {
if (ScriptableDocumentParser* parser = scriptableDocumentParser()) {
if (parser->isParsing()) {
// FIXME: HTML5 doesn't tell us to check this, it might not be correct.
if (parser->isExecutingScript())
return;
if (!parser->wasCreatedByScript() && parser->hasInsertionPoint())
return;
}
}
if (m_frame->loader()->state() == FrameStateProvisional)
m_frame->loader()->stopAllLoaders();
}
removeAllEventListeners();
implicitOpen();
if (ScriptableDocumentParser* parser = scriptableDocumentParser())
parser->setWasCreatedByScript(true);
if (DOMWindow* domWindow = this->domWindow())
domWindow->removeAllEventListeners();
if (m_frame)
m_frame->loader()->didExplicitOpen();
}
void Document::detachParser()
{
if (!m_parser)
return;
m_parser->detach();
m_parser.clear();
}
void Document::cancelParsing()
{
if (!m_parser)
return;
// We have to clear the parser to avoid possibly triggering
// the onload handler when closing as a side effect of a cancel-style
// change, such as opening a new document or closing the window while
// still parsing
detachParser();
explicitClose();
}
void Document::implicitOpen()
{
cancelParsing();
removeChildren();
setCompatibilityMode(NoQuirksMode);
m_parser = createParser();
setParsing(true);
setReadyState(Loading);
// 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 toHTMLElement(i);
if (i->hasTagName(bodyTag) && !body)
body = i;
}
return toHTMLElement(body);
}
void Document::setBody(PassRefPtr<HTMLElement> newBody, ExceptionCode& ec)
{
ec = 0;
if (!newBody || !documentElement() || !newBody->hasTagName(bodyTag)) {
ec = HIERARCHY_REQUEST_ERR;
return;
}
if (newBody->document() && newBody->document() != this) {
RefPtr<Node> node = importNode(newBody.get(), true, ec);
if (ec)
return;
newBody = toHTMLElement(node.get());
}
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()
{
// FIXME: We should follow the specification more closely:
// http://www.whatwg.org/specs/web-apps/current-work/#dom-document-close
if (!scriptableDocumentParser() || !scriptableDocumentParser()->wasCreatedByScript())
return;
explicitClose();
}
void Document::explicitClose()
{
if (!m_frame) {
// 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>.
if (m_parser)
m_parser->finish();
implicitClose();
return;
}
// This code calls implicitClose() if all loading has completed.
loader()->writer()->endIfNotLoadingMainResource();
if (m_frame)
m_frame->loader()->checkCompleted();
}
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()->navigationScheduler()->locationChangePending();
bool doload = !parsing() && m_parser && !m_processingLoadEvent && !wasLocationChangePending;
if (!doload)
return;
m_processingLoadEvent = true;
ScriptableDocumentParser* parser = scriptableDocumentParser();
m_wellFormed = parser && parser->wellFormed();
// We have to clear the parser, in case someone document.write()s from the
// onLoad event handler, as in Radar 3206524.
detachParser();
// Parser should have picked up all preloads by now
m_cachedResourceLoader->clearPreloads();
// 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()->resumeAnimationsForDocument(this);
ImageLoader::dispatchPendingBeforeLoadEvents();
ImageLoader::dispatchPendingLoadEvents();
dispatchWindowLoadEvent();
enqueuePageshowEvent(PageshowEventNotPersisted);
enqueuePopstateEvent(m_pendingStateObject ? m_pendingStateObject.release() : SerializedScriptValue::nullValue());
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()->navigationScheduler()->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) || PLATFORM(CHROMIUM)
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));
}
bool Document::isLayoutTimerActive()
{
if (!view() || !view()->layoutPending())
return false;
bool isPendingLayoutImmediate = minimumLayoutDelay() == m_extraLayoutDelay;
return isPendingLayoutImmediate;
}
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)
{
NestingLevelIncrementer nestingLevelIncrementer(m_writeRecursionDepth);
m_writeRecursionIsTooDeep = (m_writeRecursionDepth > 1) && m_writeRecursionIsTooDeep;
m_writeRecursionIsTooDeep = (m_writeRecursionDepth > cMaxWriteRecursionDepth) || m_writeRecursionIsTooDeep;
if (m_writeRecursionIsTooDeep)
return;
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Beginning a document.write at %d\n", elapsedTime());
#endif
bool hasInsertionPoint = m_parser && m_parser->hasInsertionPoint();
if (!hasInsertionPoint && m_ignoreDestructiveWriteCount)
return;
if (!hasInsertionPoint)
open(ownerDocument);
ASSERT(m_parser);
m_parser->insert(text);
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Ending a document.write at %d\n", elapsedTime());
#endif
}
void Document::write(const String& text, Document* ownerDocument)
{
write(SegmentedString(text), ownerDocument);
}
void Document::writeln(const String& text, Document* ownerDocument)
{
write(text, ownerDocument);
write("\n", ownerDocument);
}
void Document::finishParsing()
{
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Received all data at %d\n", elapsedTime());
#endif
// Let the parser go through as much data as it can. There will be three possible outcomes after
// finish() is called:
// (1) All remaining data is parsed, document isn't loaded yet
// (2) All remaining data is parsed, document is loaded, parser gets deleted
// (3) Data is still remaining to be parsed.
if (m_parser)
m_parser->finish();
}
const KURL& Document::virtualURL() const
{
return m_url;
}
KURL Document::virtualCompleteURL(const String& url) const
{
return completeURL(url);
}
double Document::minimumTimerInterval() const
{
Page* p = page();
if (!p)
return ScriptExecutionContext::minimumTimerInterval();
return p->settings()->minDOMTimerInterval();
}
EventTarget* Document::errorEventTarget()
{
return domWindow();
}
void Document::logExceptionToConsole(const String& errorMessage, int lineNumber, const String& sourceURL, PassRefPtr<ScriptCallStack> callStack)
{
MessageType messageType = callStack ? UncaughtExceptionMessageType : LogMessageType;
addMessage(JSMessageSource, messageType, ErrorMessageLevel, errorMessage, lineNumber, sourceURL, callStack);
}
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::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);
}
void Document::processBaseElement()
{
// Find the first href attribute in a base element and the first target attribute in a base element.
const AtomicString* href = 0;
const AtomicString* target = 0;
for (Node* node = document()->firstChild(); node && (!href || !target); node = node->traverseNextNode()) {
if (node->hasTagName(baseTag)) {
if (!href) {
const AtomicString& value = static_cast<Element*>(node)->fastGetAttribute(hrefAttr);
if (!value.isNull())
href = &value;
}
if (!target) {
const AtomicString& value = static_cast<Element*>(node)->fastGetAttribute(targetAttr);
if (!value.isNull())
target = &value;
}
}
}
// FIXME: Since this doesn't share code with completeURL it may not handle encodings correctly.
KURL baseElementURL;
if (href) {
String strippedHref = stripLeadingAndTrailingHTMLSpaces(*href);
if (!strippedHref.isEmpty())
baseElementURL = KURL(url(), strippedHref);
}
if (m_baseElementURL != baseElementURL) {
m_baseElementURL = baseElementURL;
updateBaseURL();
}
m_baseTarget = target ? *target : nullAtom;
}
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, !inQuirksMode());
return m_pageUserSheet.get();
}
void Document::clearPageUserSheet()
{
if (m_pageUserSheet) {
m_pageUserSheet = 0;
styleSelectorChanged(DeferRecalcStyle);
}
}
void Document::updatePageUserSheet()
{
clearPageUserSheet();
if (pageUserSheet())
styleSelectorChanged(RecalcStyleImmediately);
}
const Vector<RefPtr<CSSStyleSheet> >* Document::pageGroupUserSheets() const
{
if (m_pageGroupUserSheetCacheValid)
return m_pageGroupUserSheets.get();
m_pageGroupUserSheetCacheValid = true;
Page* owningPage = page();
if (!owningPage)
return 0;
const PageGroup& pageGroup = owningPage->group();
const UserStyleSheetMap* sheetsMap = pageGroup.userStyleSheets();
if (!sheetsMap)
return 0;
UserStyleSheetMap::const_iterator end = sheetsMap->end();
for (UserStyleSheetMap::const_iterator it = sheetsMap->begin(); it != end; ++it) {
const UserStyleSheetVector* sheets = it->second;
for (unsigned i = 0; i < sheets->size(); ++i) {
const UserStyleSheet* sheet = sheets->at(i).get();
if (sheet->injectedFrames() == InjectInTopFrameOnly && ownerElement())
continue;
if (!UserContentURLPattern::matchesPatterns(url(), sheet->whitelist(), sheet->blacklist()))
continue;
RefPtr<CSSStyleSheet> parsedSheet = CSSStyleSheet::createInline(const_cast<Document*>(this), sheet->url());
parsedSheet->setIsUserStyleSheet(sheet->level() == UserStyleUserLevel);
parsedSheet->parseString(sheet->source(), !inQuirksMode());
if (!m_pageGroupUserSheets)
m_pageGroupUserSheets.set(new Vector<RefPtr<CSSStyleSheet> >);
m_pageGroupUserSheets->append(parsedSheet.release());
}
}
return m_pageGroupUserSheets.get();
}
void Document::clearPageGroupUserSheets()
{
m_pageGroupUserSheetCacheValid = false;
if (m_pageGroupUserSheets && m_pageGroupUserSheets->size()) {
m_pageGroupUserSheets->clear();
styleSelectorChanged(DeferRecalcStyle);
}
}
void Document::updatePageGroupUserSheets()
{
clearPageGroupUserSheets();
if (pageGroupUserSheets() && pageGroupUserSheets()->size())
styleSelectorChanged(RecalcStyleImmediately);
}
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())
// 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()) { }
// 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
void Document::processMetadataSettings(const String& content)
{
ASSERT(!content.isNull());
processArguments(content, 0, 0);
}
#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;
styleSelectorChanged(DeferRecalcStyle);
} else if (equalIgnoringCase(equiv, "refresh")) {
double delay;
String url;
if (frame && parseHTTPRefresh(content, true, delay, url)) {
if (url.isEmpty())
url = m_url.string();
else
url = completeURL(url).string();
frame->navigationScheduler()->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")) {
if (frame) {
FrameLoader* frameLoader = frame->loader();
if (frameLoader->shouldInterruptLoadForXFrameOptions(content, url())) {
frameLoader->stopAllLoaders();
frame->navigationScheduler()->scheduleLocationChange(securityOrigin(), blankURL(), String());
DEFINE_STATIC_LOCAL(String, consoleMessage, ("Refused to display document because display forbidden by X-Frame-Options.\n"));
frame->domWindow()->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, consoleMessage, 1, String());
}
}
} else if (equalIgnoringCase(equiv, "x-webkit-csp"))
contentSecurityPolicy()->didReceiveHeader(content);
}
// Though isspace() considers \t and \v to be whitespace, Win IE doesn't.
static bool isSeparator(UChar c)
{
return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '=' || c == ',' || c == '\0';
}
void Document::processArguments(const String& features, void* data, ArgumentsCallback callback)
{
// Tread lightly in this code -- it was specifically designed to mimic Win IE's parsing behavior.
int keyBegin, keyEnd;
int valueBegin, valueEnd;
int i = 0;
int length = features.length();
String buffer = features.lower();
while (i < length) {
// skip to first non-separator, but don't skip past the end of the string
while (isSeparator(buffer[i])) {
if (i >= length)
break;
i++;
}
keyBegin = i;
// skip to first separator
while (!isSeparator(buffer[i]))
i++;
keyEnd = i;
// skip to first '=', but don't skip past a ',' or the end of the string
while (buffer[i] != '=') {
if (buffer[i] == ',' || i >= length)
break;
i++;
}
// skip to first non-separator, but don't skip past a ',' or the end of the string
while (isSeparator(buffer[i])) {
if (buffer[i] == ',' || i >= length)
break;
i++;
}
valueBegin = i;
// skip to first separator
while (!isSeparator(buffer[i]))
i++;
valueEnd = i;
ASSERT(i <= length);
String keyString = buffer.substring(keyBegin, keyEnd - keyBegin);
String valueString = buffer.substring(valueBegin, valueEnd - valueBegin);
#ifdef ANDROID_META_SUPPORT
if (frame())
frame()->settings()->setMetadataSettings(keyString, valueString);
if (callback && data)
#endif
callback(keyString, valueString, this, data);
}
}
void Document::processViewport(const String& features)
{
ASSERT(!features.isNull());
m_viewportArguments = ViewportArguments();
processArguments(features, (void*)&m_viewportArguments, &setViewportFeature);
Frame* frame = this->frame();
if (!frame || !frame->page())
return;
frame->page()->updateViewportArguments();
}
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) const
{
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;
styleSelectorChanged(DeferRecalcStyle);
}
// 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
if (m_pendingStylesheets)
return;
styleSelectorChanged(RecalcStyleImmediately);
if (ScriptableDocumentParser* parser = scriptableDocumentParser())
parser->executeScriptsWaitingForStylesheets();
if (m_gotoAnchorNeededAfterStylesheetsLoad && view())
view()->scrollToFragment(m_url);
}
void Document::styleSelectorChanged(StyleSelectorUpdateFlag updateFlag)
{
// 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 (!attached() || (!m_didCalculateStyleSelector && !haveStylesheetsLoaded()))
return;
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Beginning update of style selector at time %d.\n", elapsedTime());
#endif
recalcStyleSelector();
if (updateFlag == DeferRecalcStyle) {
scheduleForcedStyleRecalc();
return;
}
if (didLayoutWithPendingStylesheets() && m_pendingStylesheets <= 0) {
m_pendingSheetLayout = IgnoreLayoutWithPendingSheets;
if (renderer())
renderer()->repaint();
}
// This recalcStyle initiates a new recalc cycle. We need to bracket it to
// make sure animations get the correct update time
if (m_frame)
m_frame->animation()->beginAnimationUpdate();
recalcStyle(Force);
if (m_frame)
m_frame->animation()->endAnimationUpdate();
#ifdef INSTRUMENT_LAYOUT_SCHEDULING
if (!ownerElement())
printf("Finished update of style selector at time %d\n", elapsedTime());
#endif
if (renderer()) {
renderer()->setNeedsLayoutAndPrefWidthsRecalc();
if (view())
view()->scheduleRelayout();
}
if (m_mediaQueryMatcher)
m_mediaQueryMatcher->styleSelectorChanged();
}
void Document::addStyleSheetCandidateNode(Node* node, bool createdByParser)
{
if (!node->inDocument())
return;
// Until the <body> exists, we have no choice but to compare document positions,
// since styles outside of the body and head continue to be shunted into the head
// (and thus can shift to end up before dynamically added DOM content that is also
// outside the body).
if ((createdByParser && body()) || m_styleSheetCandidateNodes.isEmpty()) {
m_styleSheetCandidateNodes.add(node);
return;
}
// Determine an appropriate insertion point.
StyleSheetCandidateListHashSet::iterator begin = m_styleSheetCandidateNodes.begin();
StyleSheetCandidateListHashSet::iterator end = m_styleSheetCandidateNodes.end();
StyleSheetCandidateListHashSet::iterator it = end;
Node* followingNode = 0;
do {
--it;
Node* n = *it;
unsigned short position = n->compareDocumentPosition(node);
if (position == DOCUMENT_POSITION_FOLLOWING) {
m_styleSheetCandidateNodes.insertBefore(followingNode, node);
return;
}
followingNode = n;
} while (it != begin);
m_styleSheetCandidateNodes.insertBefore(followingNode, node);
}
void Document::removeStyleSheetCandidateNode(Node* node)
{
m_styleSheetCandidateNodes.remove(node);
}
void Document::recalcStyleSelector()
{
if (m_inStyleRecalc) {
// SVG <use> element may manage to invalidate style selector in the middle of a style recalc.
// https://bugs.webkit.org/show_bug.cgi?id=54344
// FIXME: This should be fixed in SVG and this code replaced with ASSERT(!m_inStyleRecalc).
m_hasDirtyStyleSelector = true;
scheduleForcedStyleRecalc();
return;
}
if (!renderer() || !attached())
return;
StyleSheetVector sheets;
bool matchAuthorAndUserStyles = true;
if (Settings* settings = this->settings())
matchAuthorAndUserStyles = settings->authorAndUserStylesEnabled();
StyleSheetCandidateListHashSet::iterator begin = m_styleSheetCandidateNodes.begin();
StyleSheetCandidateListHashSet::iterator end = m_styleSheetCandidateNodes.end();
if (!matchAuthorAndUserStyles)
end = begin;
for (StyleSheetCandidateListHashSet::iterator it = begin; it != end; ++it) {
Node* n = *it;
StyleSheet* sheet = 0;
if (n->nodeType() == PROCESSING_INSTRUCTION_NODE) {
// Processing instruction (XML documents only).
// We don't support linking to embedded CSS stylesheets, see <https://bugs.webkit.org/show_bug.cgi?id=49281> for discussion.
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
} 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* linkElement = static_cast<HTMLLinkElement*>(n);
if (linkElement->isDisabled())
continue;
enabledViaScript = linkElement->isEnabledViaScript();
if (linkElement->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 (!linkElement->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;
m_hasDirtyStyleSelector = false;
}
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->parentNode())))
return;
m_hoverNode = node->parentNode();
while (m_hoverNode && !m_hoverNode->renderer())
m_hoverNode = m_hoverNode->parentNode();
if (frame())
frame()->eventHandler()->scheduleHoverStateUpdate();
}
void Document::activeChainNodeDetached(Node* node)
{
if (!m_activeNode || (node != m_activeNode && (!m_activeNode->isTextNode() || node != m_activeNode->parentNode())))
return;
m_activeNode = node->parentNode();
while (m_activeNode && !m_activeNode->renderer())
m_activeNode = m_activeNode->parentNode();
}
#if ENABLE(DASHBOARD_SUPPORT)
const Vector<DashboardRegionValue>& Document::dashboardRegions() const
{
return m_dashboardRegions;
}
void Document::setDashboardRegions(const Vector<DashboardRegionValue>& regions)
{
m_dashboardRegions = regions;
setDashboardRegionsDirty(false);
}
#endif
bool Document::setFocusedNode(PassRefPtr<Node> newFocusedNode)
{
// Make sure newFocusedNode is actually in this document
if (newFocusedNode && (newFocusedNode->document() != this))
return true;
if (m_focusedNode == newFocusedNode)
return true;
if (m_inPageCache)
return false;
bool focusChangeBlocked = false;
RefPtr<Node> oldFocusedNode = m_focusedNode;
m_focusedNode = 0;
// Remove focus from the existing focus node (if any)
if (oldFocusedNode && !oldFocusedNode->inDetach()) {
if (oldFocusedNode->active())
oldFocusedNode->setActive(false);
oldFocusedNode->setFocus(false);
// Dispatch a change event for text fields or textareas that have been edited
if (oldFocusedNode->isElementNode()) {
Element* element = static_cast<Element*>(oldFocusedNode.get());
if (element->wasChangedSinceLastFormControlChangeEvent())
element->dispatchFormControlChangeEvent();
}
// Dispatch the blur event and let the node do any other blur related activities (important for text fields)
oldFocusedNode->dispatchBlurEvent();
if (m_focusedNode) {
// handler shifted focus
focusChangeBlocked = true;
newFocusedNode = 0;
}
oldFocusedNode->dispatchUIEvent(eventNames().focusoutEvent, 0, 0); // DOM level 3 name for the bubbling blur event.
// FIXME: We should remove firing DOMFocusOutEvent event when we are sure no content depends
// on it, probably when <rdar://problem/8503958> is resolved.
oldFocusedNode->dispatchUIEvent(eventNames().DOMFocusOutEvent, 0, 0); // DOM level 2 name for compatibility.
if (m_focusedNode) {
// handler shifted focus
focusChangeBlocked = true;
newFocusedNode = 0;
}
if (oldFocusedNode == this && oldFocusedNode->hasOneRef())
return true;
if (oldFocusedNode == oldFocusedNode->rootEditableElement())
frame()->editor()->didEndEditing();
if (view()) {
Widget* oldWidget = widgetForNode(oldFocusedNode.get());
if (oldWidget)
oldWidget->setFocus(false);
else
view()->setFocus(false);
}
}
if (newFocusedNode) {
if (newFocusedNode == newFocusedNode->rootEditableElement() && !acceptsEditingFocus(newFocusedNode.get())) {
// delegate blocks focus change
focusChangeBlocked = true;
goto SetFocusedNodeDone;
}
// Set focus on the new node
m_focusedNode = newFocusedNode.get();
// Dispatch the focus event and let the node do any other focus related activities (important for text fields)
m_focusedNode->dispatchFocusEvent();
if (m_focusedNode != newFocusedNode) {
// handler shifted focus
focusChangeBlocked = true;
goto SetFocusedNodeDone;
}
m_focusedNode->dispatchUIEvent(eventNames().focusinEvent, 0, 0); // DOM level 3 bubbling focus event.
// FIXME: We should remove firing DOMFocusInEvent event when we are sure no content depends
// on it, probably when <rdar://problem/8503958> is resolved.
m_focusedNode->dispatchUIEvent(eventNames().DOMFocusInEvent, 0, 0); // DOM level 2 for compatibility.
if (m_focusedNode != newFocusedNode) {
// handler shifted focus
focusChangeBlocked = true;
goto SetFocusedNodeDone;
}
m_focusedNode->setFocus(true);
if (m_focusedNode == m_focusedNode->rootEditableElement())
frame()->editor()->didBeginEditing();
// eww, I suck. set the qt focus correctly
// ### find a better place in the code for this
if (view()) {
Widget* focusWidget = widgetForNode(m_focusedNode.get());
if (focusWidget) {
// Make sure a widget has the right size before giving it focus.
// Otherwise, we are testing edge cases of the Widget code.
// Specifically, in WebCore this does not work well for text fields.
updateLayout();
// Re-get the widget in case updating the layout changed things.
focusWidget = widgetForNode(m_focusedNode.get());
}
if (focusWidget)
focusWidget->setFocus(true);
else
view()->setFocus(true);
}
}
#if PLATFORM(MAC) || PLATFORM(WIN) || PLATFORM(GTK) || PLATFORM(CHROMIUM)
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)
{
// The node iterator can be detached without having been attached if its root node didn't have a document
// when the iterator was created, but has it now.
m_nodeIterators.remove(ni);
}
void Document::moveNodeIteratorsToNewDocument(Node* node, Document* newDocument)
{
HashSet<NodeIterator*> nodeIteratorsList = m_nodeIterators;
HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = nodeIteratorsList.end();
for (HashSet<NodeIterator*>::const_iterator it = nodeIteratorsList.begin(); it != nodeIteratorsEnd; ++it) {
if ((*it)->root() == node) {
detachNodeIterator(*it);
newDocument->attachNodeIterator(*it);
}
}
}
void Document::nodeChildrenChanged(ContainerNode* container)
{
if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
HashSet<Range*>::const_iterator end = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
(*it)->nodeChildrenChanged(container);
}
}
void Document::nodeChildrenWillBeRemoved(ContainerNode* container)
{
if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
HashSet<Range*>::const_iterator end = m_ranges.end();
for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
(*it)->nodeChildrenWillBeRemoved(container);
}
HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it) {
for (Node* n = container->firstChild(); n; n = n->nextSibling())
(*it)->nodeWillBeRemoved(n);
}
if (Frame* frame = this->frame()) {
for (Node* n = container->firstChild(); n; n = n->nextSibling()) {
frame->selection()->nodeWillBeRemoved(n);
frame->page()->dragCaretController()->nodeWillBeRemoved(n);
}
}
}
void Document::nodeWillBeRemoved(Node* n)
{
HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it)
(*it)->nodeWillBeRemoved(n);
if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
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->page()->dragCaretController()->nodeWillBeRemoved(n);
}
#if ENABLE(FULLSCREEN_API)
// If the current full screen element or any of its ancestors is removed, set the current
// full screen element to the document root, and fire a fullscreenchange event to inform
// clients of the DOM.
ASSERT(n);
if (n->contains(m_fullScreenElement.get())) {
ASSERT(n != documentElement());
if (m_fullScreenRenderer)
m_fullScreenRenderer->remove();
setFullScreenRenderer(0);
m_fullScreenElement = documentElement();
recalcStyle(Force);
m_fullScreenChangeDelayTimer.startOneShot(0);
}
#endif
}
void Document::textInserted(Node* text, unsigned offset, unsigned length)
{
if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
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.
m_markers->shiftMarkers(text, offset, length);
}
void Document::textRemoved(Node* text, unsigned offset, unsigned length)
{
if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
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.
m_markers->removeMarkers(text, offset, length);
m_markers->shiftMarkers(text, offset + length, 0 - length);
}
void Document::textNodesMerged(Text* oldNode, unsigned offset)
{
if (!disableRangeMutation(page()) && !m_ranges.isEmpty()) {
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()) && !m_ranges.isEmpty()) {
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::enqueueWindowEvent(PassRefPtr<Event> event)
{
event->setTarget(domWindow());
m_eventQueue->enqueueEvent(event);
}
void Document::enqueueDocumentEvent(PassRefPtr<Event> event)
{
event->setTarget(this);
m_eventQueue->enqueueEvent(event);
}
PassRefPtr<Event> Document::createEvent(const String& eventType, ExceptionCode& ec)
{
RefPtr<Event> event;
if (eventType == "Event" || eventType == "Events" || eventType == "HTMLEvents")
event = Event::create();
else if (eventType == "CustomEvent")
event = CustomEvent::create();
else if (eventType == "KeyboardEvent" || eventType == "KeyboardEvents")
event = KeyboardEvent::create();
else if (eventType == "MessageEvent")
event = MessageEvent::create();
else if (eventType == "MouseEvent" || eventType == "MouseEvents")
event = MouseEvent::create();
else if (eventType == "MutationEvent" || eventType == "MutationEvents")
event = MutationEvent::create();
else if (eventType == "OverflowEvent")
event = OverflowEvent::create();
else if (eventType == "PageTransitionEvent")
event = PageTransitionEvent::create();
else if (eventType == "ProgressEvent")
event = ProgressEvent::create();
#if ENABLE(DOM_STORAGE)
else if (eventType == "StorageEvent")
event = StorageEvent::create();
#endif
else if (eventType == "TextEvent")
event = TextEvent::create();
else if (eventType == "UIEvent" || eventType == "UIEvents")
event = UIEvent::create();
else if (eventType == "WebKitAnimationEvent")
event = WebKitAnimationEvent::create();
else if (eventType == "WebKitTransitionEvent")
event = WebKitTransitionEvent::create();
else if (eventType == "WheelEvent")
event = WheelEvent::create();
#if ENABLE(SVG)
else if (eventType == "SVGEvents")
event = Event::create();
else if (eventType == "SVGZoomEvents")
event = SVGZoomEvent::create();
#endif
#if ENABLE(TOUCH_EVENTS)
#if USE(V8)
else if (eventType == "TouchEvent" && RuntimeEnabledFeatures::touchEnabled())
#else
else if (eventType == "TouchEvent")
#endif
event = TouchEvent::create();
#endif
#if ENABLE(DEVICE_ORIENTATION)
else if (eventType == "DeviceMotionEvent")
event = DeviceMotionEvent::create();
else if (eventType == "DeviceOrientationEvent")
event = DeviceOrientationEvent::create();
#endif
#if ENABLE(ORIENTATION_EVENTS)
else if (eventType == "OrientationEvent")
event = Event::create();
#endif
if (event)
return event.release();
ec = NOT_SUPPORTED_ERR;
return 0;
}
void Document::addListenerTypeIfNeeded(const AtomicString& eventType)
{
if (eventType == eventNames().DOMSubtreeModifiedEvent)
addListenerType(DOMSUBTREEMODIFIED_LISTENER);
else if (eventType == eventNames().DOMNodeInsertedEvent)
addListenerType(DOMNODEINSERTED_LISTENER);
else if (eventType == eventNames().DOMNodeRemovedEvent)
addListenerType(DOMNODEREMOVED_LISTENER);
else if (eventType == eventNames().DOMNodeRemovedFromDocumentEvent)
addListenerType(DOMNODEREMOVEDFROMDOCUMENT_LISTENER);
else if (eventType == eventNames().DOMNodeInsertedIntoDocumentEvent)
addListenerType(DOMNODEINSERTEDINTODOCUMENT_LISTENER);
else if (eventType == eventNames().DOMAttrModifiedEvent)
addListenerType(DOMATTRMODIFIED_LISTENER);
else if (eventType == eventNames().DOMCharacterDataModifiedEvent)
addListenerType(DOMCHARACTERDATAMODIFIED_LISTENER);
else if (eventType == eventNames().overflowchangedEvent)
addListenerType(OVERFLOWCHANGED_LISTENER);
else if (eventType == eventNames().webkitAnimationStartEvent)
addListenerType(ANIMATIONSTART_LISTENER);
else if (eventType == eventNames().webkitAnimationEndEvent)
addListenerType(ANIMATIONEND_LISTENER);
else if (eventType == eventNames().webkitAnimationIterationEvent)
addListenerType(ANIMATIONITERATION_LISTENER);
else if (eventType == eventNames().webkitTransitionEndEvent)
addListenerType(TRANSITIONEND_LISTENER);
else if (eventType == eventNames().beforeloadEvent)
addListenerType(BEFORELOAD_LISTENER);
else if (eventType == eventNames().beforeprocessEvent)
addListenerType(BEFOREPROCESS_LISTENER);
#if ENABLE(TOUCH_EVENTS)
else if (eventType == eventNames().touchstartEvent
|| eventType == eventNames().touchmoveEvent
|| eventType == eventNames().touchendEvent
|| eventType == eventNames().touchcancelEvent) {
addListenerType(TOUCH_LISTENER);
if (Page* page = this->page())
page->chrome()->client()->needTouchEvents(true);
}
#endif
}
CSSStyleDeclaration* Document::getOverrideStyle(Element*, const String&)
{
return 0;
}
HTMLFrameOwnerElement* Document::ownerElement() const
{
if (!frame())
return 0;
return frame()->ownerElement();
}
String Document::cookie(ExceptionCode& ec) const
{
if (page() && !page()->cookieEnabled())
return String();
// FIXME: The HTML5 DOM spec states that this attribute can raise an
// INVALID_STATE_ERR exception on getting if the Document has no
// browsing context.
if (!securityOrigin()->canAccessCookies()) {
ec = SECURITY_ERR;
return String();
}
KURL cookieURL = this->cookieURL();
if (cookieURL.isEmpty())
return String();
return cookies(this, cookieURL);
}
void Document::setCookie(const String& value, ExceptionCode& ec)
{
if (page() && !page()->cookieEnabled())
return;
// FIXME: The HTML5 DOM spec states that this attribute can raise an
// INVALID_STATE_ERR exception on setting if the Document has no
// browsing context.
if (!securityOrigin()->canAccessCookies()) {
ec = SECURITY_ERR;
return;
}
KURL cookieURL = this->cookieURL();
if (cookieURL.isEmpty())
return;
setCookies(this, cookieURL, value);
}
String Document::referrer() const
{
if (frame())
return frame()->loader()->referrer();
return String();
}
String Document::domain() const
{
return securityOrigin()->domain();
}
void Document::setDomain(const String& newDomain, ExceptionCode& ec)
{
if (SecurityOrigin::isDomainRelaxationForbiddenForURLScheme(securityOrigin()->protocol())) {
ec = SECURITY_ERR;
return;
}
// Both NS and IE specify that changing the domain is only allowed when
// the new domain is a suffix of the old domain.
// FIXME: We should add logging indicating why a domain was not allowed.
// If the new domain is the same as the old domain, still call
// securityOrigin()->setDomainForDOM. This will change the
// security check behavior. For example, if a page loaded on port 8000
// assigns its current domain using document.domain, the page will
// allow other pages loaded on different ports in the same domain that
// have also assigned to access this page.
if (equalIgnoringCase(domain(), newDomain)) {
securityOrigin()->setDomainFromDOM(newDomain);
if (m_frame)
m_frame->script()->updateSecurityOrigin();
return;
}
int oldLength = domain().length();
int newLength = newDomain.length();
// e.g. newDomain = webkit.org (10) and domain() = www.webkit.org (14)
if (newLength >= oldLength) {
ec = SECURITY_ERR;
return;
}
String test = domain();
// Check that it's a subdomain, not e.g. "ebkit.org"
if (test[oldLength - newLength - 1] != '.') {
ec = SECURITY_ERR;
return;
}
// Now test is "webkit.org" from domain()
// and we check that it's the same thing as newDomain
test.remove(0, oldLength - newLength);
if (test != newDomain) {
ec = SECURITY_ERR;
return;
}
securityOrigin()->setDomainFromDOM(newDomain);
if (m_frame)
m_frame->script()->updateSecurityOrigin();
}
// http://www.whatwg.org/specs/web-apps/current-work/#dom-document-lastmodified
String Document::lastModified() const
{
DateComponents date;
bool foundDate = false;
if (m_frame) {
String httpLastModified;
if (DocumentLoader* documentLoader = loader())
httpLastModified = documentLoader->response().httpHeaderField("Last-Modified");
if (!httpLastModified.isEmpty()) {
date.setMillisecondsSinceEpochForDateTime(parseDate(httpLastModified));
foundDate = true;
}
}
// FIXME: If this document came from the file system, the HTML5
// specificiation tells us to read the last modification date from the file
// system.
if (!foundDate)
date.setMillisecondsSinceEpochForDateTime(currentTimeMS());
return String::format("%02d/%02d/%04d %02d:%02d:%02d", date.month() + 1, date.monthDay(), date.fullYear(), date.hour(), date.minute(), date.second());
}
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) {
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::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);
m_savedRenderer = renderer();
if (FrameView* v = view())
v->resetScrollbarsAndClearContentsSize();
m_styleRecalcTimer.stop();
} else {
ASSERT(!renderer() || renderer() == m_savedRenderer);
ASSERT(m_renderArena);
setRenderer(m_savedRenderer);
m_savedRenderer = 0;
if (frame() && frame()->page())
frame()->page()->updateViewportArguments();
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
ASSERT(m_frame);
m_frame->loader()->client()->dispatchDidBecomeFrameset(isFrameSet());
}
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::privateBrowsingStateDidChange()
{
HashSet<Element*>::iterator end = m_privateBrowsingStateChangedElements.end();
for (HashSet<Element*>::iterator it = m_privateBrowsingStateChangedElements.begin(); it != end; ++it)
(*it)->privateBrowsingStateDidChange();
}
void Document::registerForPrivateBrowsingStateChangedCallbacks(Element* e)
{
m_privateBrowsingStateChangedElements.add(e);
}
void Document::unregisterForPrivateBrowsingStateChangedCallbacks(Element* e)
{
m_privateBrowsingStateChangedElements.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();
document->updateStyleIfNeeded();
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() == TrueTriState;
}
bool Document::queryCommandSupported(const String& commandName)
{
return command(this, commandName).isSupported();
}
String Document::queryCommandValue(const String& commandName)
{
return command(this, commandName).value();
}
#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;
for (Frame* frame = m_frame; frame && frame->document(); frame = frame->tree()->traverseNext(m_frame))
frame->document()->scheduleForcedStyleRecalc();
}
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
{
if (!m_frame)
return 0;
Frame* parent = m_frame->tree()->parent();
if (!parent)
return 0;
return parent->document();
}
Document* Document::topDocument() const
{
Document* doc = const_cast<Document *>(this);
Element* element;
while ((element = doc->ownerElement()))
doc = element->document();
return doc;
}
PassRefPtr<Attr> Document::createAttribute(const String& name, ExceptionCode& ec)
{
return createAttributeNS(String(), name, ec, true);
}
PassRefPtr<Attr> Document::createAttributeNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode& ec, bool shouldIgnoreNamespaceChecks)
{
String prefix, localName;
if (!parseQualifiedName(qualifiedName, prefix, localName, ec))
return 0;
QualifiedName qName(prefix, localName, namespaceURI);
if (!shouldIgnoreNamespaceChecks && hasPrefixNamespaceMismatch(qName)) {
ec = NAMESPACE_ERR;
return 0;
}
// Spec: DOM Level 2 Core: http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrAttrNS
if (!shouldIgnoreNamespaceChecks && qName.localName() == xmlnsAtom && qName.namespaceURI() != XMLNSNames::xmlnsNamespaceURI) {
ec = NAMESPACE_ERR;
return 0;
}
// FIXME: Assume this is a mapped attribute, since createAttribute isn't namespace-aware. There's no harm to XML
// documents if we're wrong.
return Attr::create(0, this, Attribute::createMapped(qName, StringImpl::empty()));
}
#if ENABLE(SVG)
const SVGDocumentExtensions* Document::svgExtensions()
{
return m_svgExtensions.get();
}
SVGDocumentExtensions* Document::accessSVGExtensions()
{
if (!m_svgExtensions)
m_svgExtensions = adoptPtr(new SVGDocumentExtensions(this));
return m_svgExtensions.get();
}
bool Document::hasSVGRootNode() const
{
return documentElement() && documentElement()->hasTagName(SVGNames::svgTag);
}
#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()
{
ASSERT(!scriptableDocumentParser() || !m_parser->isParsing());
ASSERT(!scriptableDocumentParser() || m_readyState != Loading);
setParsing(false);
if (!m_documentTiming.domContentLoadedEventStart)
m_documentTiming.domContentLoadedEventStart = currentTime();
dispatchEvent(Event::create(eventNames().DOMContentLoadedEvent, true, false));
if (!m_documentTiming.domContentLoadedEventEnd)
m_documentTiming.domContentLoadedEventEnd = currentTime();
if (RefPtr<Frame> f = frame()) {
// FrameLoader::finishedParsing() might end up calling Document::implicitClose() if all
// resource loads are complete. HTMLObjectElements can start loading their resources from
// post attach callbacks triggered by recalcStyle(). This means if we parse out an <object>
// tag and then reach the end of the document without updating styles, we might not have yet
// started the resource load and might fire the window load event too early. To avoid this
// we force the styles to be up to date before calling FrameLoader::finishedParsing().
// See https://bugs.webkit.org/show_bug.cgi?id=36864 starting around comment 35.
updateStyleIfNeeded();
f->loader()->finishedParsing();
InspectorInstrumentation::domContentLoadedEventFired(f.get(), url());
}
}
Vector<String> Document::formElementsState() const
{
Vector<String> stateVector;
stateVector.reserveInitialCapacity(m_formElementsWithState.size() * 3);
typedef FormElementListHashSet::const_iterator Iterator;
Iterator end = m_formElementsWithState.end();
for (Iterator it = m_formElementsWithState.begin(); it != end; ++it) {
Element* elementWithState = *it;
String value;
if (!elementWithState->shouldSaveAndRestoreFormControlState())
continue;
if (!elementWithState->saveFormControlState(value))
continue;
stateVector.append(elementWithState->formControlName().string());
stateVector.append(elementWithState->formControlType().string());
stateVector.append(value);
}
return stateVector;
}
#if ENABLE(XPATH)
PassRefPtr<XPathExpression> Document::createExpression(const String& expression,
XPathNSResolver* resolver,
ExceptionCode& ec)
{
if (!m_xpathEvaluator)
m_xpathEvaluator = XPathEvaluator::create();
return m_xpathEvaluator->createExpression(expression, resolver, ec);
}
PassRefPtr<XPathNSResolver> Document::createNSResolver(Node* nodeResolver)
{
if (!m_xpathEvaluator)
m_xpathEvaluator = XPathEvaluator::create();
return m_xpathEvaluator->createNSResolver(nodeResolver);
}
PassRefPtr<XPathResult> Document::evaluate(const String& expression,
Node* contextNode,
XPathNSResolver* resolver,
unsigned short type,
XPathResult* result,
ExceptionCode& ec)
{
if (!m_xpathEvaluator)
m_xpathEvaluator = XPathEvaluator::create();
return m_xpathEvaluator->evaluate(expression, contextNode, resolver, type, result, ec);
}
#endif // ENABLE(XPATH)
void Document::setStateForNewFormElements(const Vector<String>& stateVector)
{
// Walk the state vector backwards so that the value to use for each
// name/type pair first is the one at the end of each individual vector
// in the FormElementStateMap. We're using them like stacks.
typedef FormElementStateMap::iterator Iterator;
m_formElementsWithState.clear();
for (size_t i = stateVector.size() / 3 * 3; i; i -= 3) {
AtomicString a = stateVector[i - 3];
AtomicString b = stateVector[i - 2];
const String& c = stateVector[i - 1];
FormElementKey key(a.impl(), b.impl());
Iterator it = m_stateForNewFormElements.find(key);
if (it != m_stateForNewFormElements.end())
it->second.append(c);
else {
Vector<String> v(1);
v[0] = c;
m_stateForNewFormElements.set(key, v);
}
}
}
bool Document::hasStateForNewFormElements() const
{
return !m_stateForNewFormElements.isEmpty();
}
bool Document::takeStateForFormElement(AtomicStringImpl* name, AtomicStringImpl* type, String& state)
{
typedef FormElementStateMap::iterator Iterator;
Iterator it = m_stateForNewFormElements.find(FormElementKey(name, type));
if (it == m_stateForNewFormElements.end())
return false;
ASSERT(it->second.size());
state = it->second.last();
if (it->second.size() > 1)
it->second.removeLast();
else
m_stateForNewFormElements.remove(it);
return true;
}
FormElementKey::FormElementKey(AtomicStringImpl* name, AtomicStringImpl* type)
: m_name(name), m_type(type)
{
ref();
}
FormElementKey::~FormElementKey()
{
deref();
}
FormElementKey::FormElementKey(const FormElementKey& other)
: m_name(other.name()), m_type(other.type())
{
ref();
}
FormElementKey& FormElementKey::operator=(const FormElementKey& other)
{
other.ref();
deref();
m_name = other.name();
m_type = other.type();
return *this;
}
void FormElementKey::ref() const
{
if (name())
name()->ref();
if (type())
type()->ref();
}
void FormElementKey::deref() const
{
if (name())
name()->deref();
if (type())
type()->deref();
}
unsigned FormElementKeyHash::hash(const FormElementKey& key)
{
return StringHasher::hashMemory<sizeof(FormElementKey)>(&key);
}
void Document::setIconURL(const String& iconURL, const String& type)
{
// FIXME - <rdar://problem/4727645> - At some point in the future, we might actually honor the "type"
if (m_iconURL.isEmpty())
m_iconURL = iconURL;
else if (!type.isEmpty())
m_iconURL = iconURL;
if (Frame* f = frame())
f->loader()->setIconURL(m_iconURL);
}
void Document::registerFormElementWithFormAttribute(FormAssociatedElement* element)
{
ASSERT(toHTMLElement(element)->fastHasAttribute(formAttr));
m_formElementsWithFormAttribute.add(element);
}
void Document::unregisterFormElementWithFormAttribute(FormAssociatedElement* element)
{
m_formElementsWithFormAttribute.remove(element);
}
void Document::resetFormElementsOwner(HTMLFormElement* form)
{
typedef FormAssociatedElementListHashSet::iterator Iterator;
Iterator end = m_formElementsWithFormAttribute.end();
for (Iterator it = m_formElementsWithFormAttribute.begin(); it != end; ++it)
(*it)->resetFormOwner(form);
}
void Document::setUseSecureKeyboardEntryWhenActive(bool usesSecureKeyboard)
{
if (m_useSecureKeyboardEntryWhenActive == usesSecureKeyboard)
return;
m_useSecureKeyboardEntryWhenActive = usesSecureKeyboard;
m_frame->selection()->updateSecureKeyboardEntryIfActive();
}
bool Document::useSecureKeyboardEntryWhenActive() const
{
return m_useSecureKeyboardEntryWhenActive;
}
void Document::initSecurityContext()
{
if (securityOrigin() && !securityOrigin()->isEmpty())
return; // m_securityOrigin has already been initialized.
if (!m_frame) {
// No source for a security context.
// This can occur via document.implementation.createDocument().
m_cookieURL = KURL(ParsedURLString, "");
ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::createEmpty());
m_contentSecurityPolicy = ContentSecurityPolicy::create();
return;
}
// In the common case, create the security context from the currently
// loading URL with a fresh content security policy.
m_cookieURL = m_url;
ScriptExecutionContext::setSecurityOrigin(SecurityOrigin::create(m_url, m_frame->loader()->sandboxFlags()));
m_contentSecurityPolicy = ContentSecurityPolicy::create(securityOrigin());
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 = loader();
if (documentLoader && documentLoader->substituteData().isValid())
securityOrigin()->grantLoadLocalResources();
}
if (Settings* settings = this->settings()) {
if (!settings->isWebSecurityEnabled()) {
// Web security is turned off. We should let this document access every
// other document. This is used primary by testing harnesses for web
// sites.
securityOrigin()->grantUniversalAccess();
} else if (settings->allowUniversalAccessFromFileURLs() && securityOrigin()->isLocal()) {
// Some clients want file:// URLs to have universal access, but that
// setting is dangerous for other clients.
securityOrigin()->grantUniversalAccess();
} else if (!settings->allowFileAccessFromFileURLs() && securityOrigin()->isLocal()) {
// Some clients want file:// URLs to have even tighter restrictions by
// default, and not be able to access other local files.
securityOrigin()->enforceFilePathSeparation();
}
}
if (!securityOrigin()->isEmpty())
return;
// If we do not obtain a meaningful origin from the URL, then we try to
// find one via the frame hierarchy.
Frame* ownerFrame = m_frame->tree()->parent();
if (!ownerFrame)
ownerFrame = m_frame->loader()->opener();
if (ownerFrame) {
m_cookieURL = ownerFrame->document()->cookieURL();
// We alias the SecurityOrigins to match Firefox, see Bug 15313
// https://bugs.webkit.org/show_bug.cgi?id=15313
ScriptExecutionContext::setSecurityOrigin(ownerFrame->document()->securityOrigin());
// FIXME: Consider moving m_contentSecurityPolicy into SecurityOrigin.
m_contentSecurityPolicy = ownerFrame->document()->contentSecurityPolicy();
}
}
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::allowDatabaseAccess() const
{
if (!page() || page()->settings()->privateBrowsingEnabled())
return false;
return true;
}
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()->setOutgoingReferrer(url);
if (DocumentLoader* documentLoader = loader())
documentLoader->replaceRequestURLForSameDocumentNavigation(url);
}
void Document::statePopped(SerializedScriptValue* stateObject)
{
if (!frame())
return;
// Per step 11 of section 6.5.9 (history traversal) of the HTML5 spec, we
// defer firing of popstate until we're in the complete state.
if (m_readyState == Complete)
enqueuePopstateEvent(stateObject);
else
m_pendingStateObject = stateObject;
}
void Document::updateFocusAppearanceSoon(bool restorePreviousSelection)
{
m_updateFocusAppearanceRestoresSelection = restorePreviousSelection;
if (!m_updateFocusAppearanceTimer.isActive())
m_updateFocusAppearanceTimer.startOneShot(0);
}
void Document::cancelFocusAppearanceUpdate()
{
m_updateFocusAppearanceTimer.stop();
}
void Document::updateFocusAppearanceTimerFired(Timer<Document>*)
{
Node* node = focusedNode();
if (!node)
return;
if (!node->isElementNode())
return;
updateLayout();
Element* element = static_cast<Element*>(node);
if (element->isFocusable())
element->updateFocusAppearance(m_updateFocusAppearanceRestoresSelection);
}
// FF method for accessing the selection added for compatibility.
DOMSelection* Document::getSelection() const
{
return frame() ? frame()->domWindow()->getSelection() : 0;
}
#if ENABLE(WML)
void Document::resetWMLPageState()
{
if (WMLPageState* pageState = wmlPageStateForDocument(this))
pageState->reset();
}
void Document::initializeWMLPageState()
{
if (!isWMLDocument())
return;
static_cast<WMLDocument*>(this)->initialize();
}
#endif
void Document::attachRange(Range* range)
{
ASSERT(!m_ranges.contains(range));
m_ranges.add(range);
}
void Document::detachRange(Range* range)
{
// We don't ASSERT m_ranges.contains(range) to allow us to call this
// unconditionally to fix: https://bugs.webkit.org/show_bug.cgi?id=26044
m_ranges.remove(range);
}
CanvasRenderingContext* Document::getCSSCanvasContext(const String& type, const String& name, int width, int height)
{
HTMLCanvasElement* result = getCSSCanvasElement(name);
if (!result)
return 0;
result->setSize(IntSize(width, height));
return result->getContext(type);
}
HTMLCanvasElement* Document::getCSSCanvasElement(const String& name)
{
RefPtr<HTMLCanvasElement> result = m_cssCanvasElements.get(name).get();
if (!result) {
result = HTMLCanvasElement::create(this);
m_cssCanvasElements.set(name, result);
}
return result.get();
}
void Document::initDNSPrefetch()
{
Settings* settings = this->settings();
m_haveExplicitlyDisabledDNSPrefetch = false;
m_isDNSPrefetchEnabled = settings && settings->dnsPrefetchingEnabled() && securityOrigin()->protocol() == "http";
// Inherit DNS prefetch opt-out from parent frame
if (Document* parent = parentDocument()) {
if (!parent->isDNSPrefetchEnabled())
m_isDNSPrefetchEnabled = false;
}
}
void Document::parseDNSPrefetchControlHeader(const String& dnsPrefetchControl)
{
if (equalIgnoringCase(dnsPrefetchControl, "on") && !m_haveExplicitlyDisabledDNSPrefetch) {
m_isDNSPrefetchEnabled = true;
return;
}
m_isDNSPrefetchEnabled = false;
m_haveExplicitlyDisabledDNSPrefetch = true;
}
void Document::addMessage(MessageSource source, MessageType type, MessageLevel level, const String& message, unsigned lineNumber, const String& sourceURL, PassRefPtr<ScriptCallStack> callStack)
{
if (DOMWindow* window = domWindow())
window->console()->addMessage(source, type, level, message, lineNumber, sourceURL, callStack);
}
struct PerformTaskContext {
WTF_MAKE_NONCOPYABLE(PerformTaskContext); WTF_MAKE_FAST_ALLOCATED;
public:
PerformTaskContext(PassRefPtr<DocumentWeakReference> documentReference, PassOwnPtr<ScriptExecutionContext::Task> task)
: documentReference(documentReference)
, task(task)
{
}
RefPtr<DocumentWeakReference> documentReference;
OwnPtr<ScriptExecutionContext::Task> task;
};
static void performTask(void* ctx)
{
ASSERT(isMainThread());
PerformTaskContext* context = reinterpret_cast<PerformTaskContext*>(ctx);
ASSERT(context);
if (Document* document = context->documentReference->document())
context->task->performTask(document);
delete context;
}
void Document::postTask(PassOwnPtr<Task> task)
{
callOnMainThread(performTask, new PerformTaskContext(m_weakReference, task));
}
void Document::suspendScriptedAnimationControllerCallbacks()
{
#if ENABLE(REQUEST_ANIMATION_FRAME)
if (m_scriptedAnimationController)
m_scriptedAnimationController->suspend();
#endif
}
void Document::resumeScriptedAnimationControllerCallbacks()
{
#if ENABLE(REQUEST_ANIMATION_FRAME)
if (m_scriptedAnimationController)
m_scriptedAnimationController->resume();
#endif
}
String Document::displayStringModifiedByEncoding(const String& str) const
{
if (m_decoder)
return m_decoder->encoding().displayString(str.impl());
return str;
}
PassRefPtr<StringImpl> Document::displayStringModifiedByEncoding(PassRefPtr<StringImpl> str) const
{
if (m_decoder)
return m_decoder->encoding().displayString(str);
return str;
}
void Document::displayBufferModifiedByEncoding(UChar* buffer, unsigned len) const
{
if (m_decoder)
m_decoder->encoding().displayBuffer(buffer, len);
}
void Document::enqueuePageshowEvent(PageshowEventPersistence persisted)
{
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=36334 Pageshow event needs to fire asynchronously.
dispatchWindowEvent(PageTransitionEvent::create(eventNames().pageshowEvent, persisted), this);
}
void Document::enqueueHashchangeEvent(const String& oldURL, const String& newURL)
{
enqueueWindowEvent(HashChangeEvent::create(oldURL, newURL));
}
void Document::enqueuePopstateEvent(PassRefPtr<SerializedScriptValue> stateObject)
{
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=36202 Popstate event needs to fire asynchronously
dispatchWindowEvent(PopStateEvent::create(stateObject));
}
void Document::addMediaCanStartListener(MediaCanStartListener* listener)
{
ASSERT(!m_mediaCanStartListeners.contains(listener));
m_mediaCanStartListeners.add(listener);
}
void Document::removeMediaCanStartListener(MediaCanStartListener* listener)
{
ASSERT(m_mediaCanStartListeners.contains(listener));
m_mediaCanStartListeners.remove(listener);
}
MediaCanStartListener* Document::takeAnyMediaCanStartListener()
{
HashSet<MediaCanStartListener*>::iterator slot = m_mediaCanStartListeners.begin();
if (slot == m_mediaCanStartListeners.end())
return 0;
MediaCanStartListener* listener = *slot;
m_mediaCanStartListeners.remove(slot);
return listener;
}
#if ENABLE(XHTMLMP)
bool Document::isXHTMLMPDocument() const
{
if (!frame() || !frame()->loader())
return false;
// As per section 7.2 of OMA-WAP-XHTMLMP-V1_1-20061020-A.pdf, a conforming user agent
// MUST accept XHTMLMP document identified as "application/vnd.wap.xhtml+xml"
// and SHOULD accept it identified as "application/xhtml+xml" , "application/xhtml+xml" is a
// general MIME type for all XHTML documents, not only for XHTMLMP
return loader()->writer()->mimeType() == "application/vnd.wap.xhtml+xml";
}
#endif
#if ENABLE(FULLSCREEN_API)
bool Document::fullScreenIsAllowedForElement(Element* element) const
{
ASSERT(element);
while (HTMLFrameOwnerElement* ownerElement = element->document()->ownerElement()) {
if (!ownerElement->hasTagName(frameTag) && !ownerElement->hasTagName(iframeTag))
continue;
if (!static_cast<HTMLFrameElementBase*>(ownerElement)->allowFullScreen())
return false;
element = ownerElement;
}
return true;
}
void Document::webkitRequestFullScreenForElement(Element* element, unsigned short flags)
{
if (!page() || !page()->settings()->fullScreenEnabled())
return;
if (!element)
element = documentElement();
if (!fullScreenIsAllowedForElement(element))
return;
if (!ScriptController::processingUserGesture())
return;
if (!page()->chrome()->client()->supportsFullScreenForElement(element, flags & Element::ALLOW_KEYBOARD_INPUT))
return;
m_areKeysEnabledInFullScreen = flags & Element::ALLOW_KEYBOARD_INPUT;
page()->chrome()->client()->enterFullScreenForElement(element);
}
void Document::webkitCancelFullScreen()
{
if (!page() || !m_fullScreenElement)
return;
page()->chrome()->client()->exitFullScreenForElement(m_fullScreenElement.get());
}
void Document::webkitWillEnterFullScreenForElement(Element* element)
{
ASSERT(element);
ASSERT(page() && page()->settings()->fullScreenEnabled());
m_fullScreenElement = element;
#if PLATFORM(ANDROID)
// Our approach on Poster handling is android specific: we are passing the
// poster from java side to native and we can't keep the content if the
// video element is detached and its RenderLayer object is deleted.
if(!(m_fullScreenElement->hasTagName(HTMLNames::videoTag))) {
#endif
if (m_fullScreenElement != documentElement())
m_fullScreenElement->detach();
recalcStyle(Force);
#if PLATFORM(ANDROID)
}
#endif
if (m_fullScreenRenderer) {
m_fullScreenRenderer->setAnimating(true);
#if USE(ACCELERATED_COMPOSITING)
view()->updateCompositingLayers();
#if PLATFORM(ANDROID)
if (!m_fullScreenRenderer->layer())
return;
#endif
if (m_fullScreenRenderer->layer()->isComposited())
page()->chrome()->client()->setRootFullScreenLayer(m_fullScreenRenderer->layer()->backing()->graphicsLayer());
#endif
}
}
void Document::webkitDidEnterFullScreenForElement(Element*)
{
if (m_fullScreenRenderer) {
m_fullScreenRenderer->setAnimating(false);
#if USE(ACCELERATED_COMPOSITING)
view()->updateCompositingLayers();
page()->chrome()->client()->setRootFullScreenLayer(0);
#endif
}
m_fullScreenChangeDelayTimer.startOneShot(0);
}
void Document::webkitWillExitFullScreenForElement(Element*)
{
if (m_fullScreenRenderer) {
m_fullScreenRenderer->setAnimating(true);
#if USE(ACCELERATED_COMPOSITING)
view()->updateCompositingLayers();
if (m_fullScreenRenderer->layer()->isComposited())
page()->chrome()->client()->setRootFullScreenLayer(m_fullScreenRenderer->layer()->backing()->graphicsLayer());
#endif
}
}
void Document::webkitDidExitFullScreenForElement(Element*)
{
m_areKeysEnabledInFullScreen = false;
if (m_fullScreenRenderer)
m_fullScreenRenderer->remove();
if (m_fullScreenElement != documentElement())
m_fullScreenElement->detach();
m_fullScreenElement = 0;
setFullScreenRenderer(0);
#if USE(ACCELERATED_COMPOSITING)
page()->chrome()->client()->setRootFullScreenLayer(0);
#endif
recalcStyle(Force);
m_fullScreenChangeDelayTimer.startOneShot(0);
}
void Document::setFullScreenRenderer(RenderFullScreen* renderer)
{
if (renderer == m_fullScreenRenderer)
return;
if (m_fullScreenRenderer)
m_fullScreenRenderer->destroy();
m_fullScreenRenderer = renderer;
// This notification can come in after the page has been destroyed.
if (page())
page()->chrome()->client()->fullScreenRendererChanged(m_fullScreenRenderer);
}
void Document::setFullScreenRendererSize(const IntSize& size)
{
ASSERT(m_fullScreenRenderer);
if (!m_fullScreenRenderer)
return;
if (m_fullScreenRenderer) {
RefPtr<RenderStyle> newStyle = RenderStyle::clone(m_fullScreenRenderer->style());
newStyle->setWidth(Length(size.width(), WebCore::Fixed));
newStyle->setHeight(Length(size.height(), WebCore::Fixed));
newStyle->setTop(Length(0, WebCore::Fixed));
newStyle->setLeft(Length(0, WebCore::Fixed));
m_fullScreenRenderer->setStyle(newStyle);
updateLayout();
}
}
void Document::setFullScreenRendererBackgroundColor(Color backgroundColor)
{
if (!m_fullScreenRenderer)
return;
RefPtr<RenderStyle> newStyle = RenderStyle::clone(m_fullScreenRenderer->style());
newStyle->setBackgroundColor(backgroundColor);
m_fullScreenRenderer->setStyle(newStyle);
}
void Document::fullScreenChangeDelayTimerFired(Timer<Document>*)
{
Element* element = m_fullScreenElement.get();
if (!element)
element = documentElement();
element->dispatchEvent(Event::create(eventNames().webkitfullscreenchangeEvent, true, false));
}
#endif
void Document::decrementLoadEventDelayCount()
{
ASSERT(m_loadEventDelayCount);
--m_loadEventDelayCount;
if (frame() && !m_loadEventDelayCount && !m_loadEventDelayTimer.isActive())
m_loadEventDelayTimer.startOneShot(0);
}
void Document::loadEventDelayTimerFired(Timer<Document>*)
{
if (frame())
frame()->loader()->checkCompleted();
}
#if ENABLE(REQUEST_ANIMATION_FRAME)
int Document::webkitRequestAnimationFrame(PassRefPtr<RequestAnimationFrameCallback> callback, Element* animationElement)
{
if (!m_scriptedAnimationController)
m_scriptedAnimationController = ScriptedAnimationController::create(this);
return m_scriptedAnimationController->registerCallback(callback, animationElement);
}
void Document::webkitCancelRequestAnimationFrame(int id)
{
if (!m_scriptedAnimationController)
return;
m_scriptedAnimationController->cancelCallback(id);
}
void Document::serviceScriptedAnimations(DOMTimeStamp time)
{
if (!m_scriptedAnimationController)
return;
m_scriptedAnimationController->serviceScriptedAnimations(time);
}
#endif
#if ENABLE(TOUCH_EVENTS)
PassRefPtr<Touch> Document::createTouch(DOMWindow* window, EventTarget* target, int identifier, int pageX, int pageY, int screenX, int screenY, ExceptionCode&) const
{
// FIXME: It's not clear from the documentation at
// http://developer.apple.com/library/safari/#documentation/UserExperience/Reference/DocumentAdditionsReference/DocumentAdditions/DocumentAdditions.html
// when this method should throw and nor is it by inspection of iOS behavior. It would be nice to verify any cases where it throws under iOS
// and implement them here. See https://bugs.webkit.org/show_bug.cgi?id=47819
Frame* frame = window ? window->frame() : this->frame();
return Touch::create(frame, target, identifier, screenX, screenY, pageX, pageY);
}
#endif
DocumentLoader* Document::loader() const
{
if (!m_frame)
return 0;
DocumentLoader* loader = m_frame->loader()->activeDocumentLoader();
if (!loader)
return 0;
#if PLATFORM(ANDROID)
// Temporary hack for http://b/5188895
bool isDocumentUpToDate = m_frame->isDocumentUpToDate();
#else
bool isDocumentUpToDate = true;
#endif
if (isDocumentUpToDate && m_frame->document() != this)
return 0;
return loader;
}
} // namespace WebCore