--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/dom/Element.cpp Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,1102 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * (C) 2001 Peter Kelly (pmk@post.com)
+ * (C) 2001 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "Element.h"
+
+#include "CSSStyleSelector.h"
+#include "Document.h"
+#include "Editor.h"
+#include "ExceptionCode.h"
+#include "FocusController.h"
+#include "Frame.h"
+#include "FrameView.h"
+#include "HTMLElement.h"
+#include "HTMLNames.h"
+#include "KURL.h"
+#include "NamedAttrMap.h"
+#include "Page.h"
+#include "RenderBlock.h"
+#include "SelectionController.h"
+#include "TextIterator.h"
+#include "TextStream.h"
+#include "XMLNames.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+using namespace XMLNames;
+
+class ElementRareData {
+public:
+ ElementRareData(Element*);
+ void resetComputedStyle(Element*);
+
+ IntSize m_minimumSizeForResizing;
+ RenderStyle* m_computedStyle;
+ bool m_needsFocusAppearanceUpdateSoonAfterAttach;
+};
+
+typedef HashMap<const Element*, ElementRareData*> ElementRareDataMap;
+
+static ElementRareDataMap& rareDataMap()
+{
+ static ElementRareDataMap* dataMap = new ElementRareDataMap;
+ return *dataMap;
+}
+
+static ElementRareData* rareDataFromMap(const Element* element)
+{
+ return rareDataMap().get(element);
+}
+
+static inline IntSize defaultMinimumSizeForResizing()
+{
+ return IntSize(INT_MAX, INT_MAX);
+}
+
+inline ElementRareData::ElementRareData(Element* element)
+ : m_minimumSizeForResizing(defaultMinimumSizeForResizing())
+ , m_computedStyle(0)
+ , m_needsFocusAppearanceUpdateSoonAfterAttach(false)
+{
+}
+
+void ElementRareData::resetComputedStyle(Element* element)
+{
+ if (!m_computedStyle)
+ return;
+ m_computedStyle->deref(element->document()->renderArena());
+ m_computedStyle = 0;
+}
+
+Element::Element(const QualifiedName& qName, Document *doc)
+ : ContainerNode(doc)
+ , m_tagName(qName)
+{
+}
+
+Element::~Element()
+{
+ if (namedAttrMap)
+ namedAttrMap->detachFromElement();
+
+ if (!m_attrWasSpecifiedOrElementHasRareData)
+ ASSERT(!rareDataMap().contains(this));
+ else {
+ ElementRareDataMap& dataMap = rareDataMap();
+ ElementRareDataMap::iterator it = dataMap.find(this);
+ ASSERT(it != dataMap.end());
+ delete it->second;
+ dataMap.remove(it);
+ }
+}
+
+inline ElementRareData* Element::rareData()
+{
+ return m_attrWasSpecifiedOrElementHasRareData ? rareDataFromMap(this) : 0;
+}
+
+inline const ElementRareData* Element::rareData() const
+{
+ return m_attrWasSpecifiedOrElementHasRareData ? rareDataFromMap(this) : 0;
+}
+
+ElementRareData* Element::createRareData()
+{
+ if (m_attrWasSpecifiedOrElementHasRareData)
+ return rareDataMap().get(this);
+ ASSERT(!rareDataMap().contains(this));
+ ElementRareData* data = new ElementRareData(this);
+ rareDataMap().set(this, data);
+ m_attrWasSpecifiedOrElementHasRareData = true;
+ return data;
+}
+
+PassRefPtr<Node> Element::cloneNode(bool deep)
+{
+ ExceptionCode ec = 0;
+ RefPtr<Element> clone = document()->createElementNS(namespaceURI(), nodeName(), ec);
+ ASSERT(!ec);
+
+ // clone attributes
+ if (namedAttrMap)
+ *clone->attributes() = *namedAttrMap;
+
+ clone->copyNonAttributeProperties(this);
+
+ if (deep)
+ cloneChildNodes(clone.get());
+
+ return clone.release();
+}
+
+void Element::removeAttribute(const QualifiedName& name, ExceptionCode& ec)
+{
+ if (namedAttrMap) {
+ namedAttrMap->removeNamedItem(name, ec);
+ if (ec == NOT_FOUND_ERR)
+ ec = 0;
+ }
+}
+
+void Element::setAttribute(const QualifiedName& name, const String &value)
+{
+ ExceptionCode ec = 0;
+ setAttribute(name, value.impl(), ec);
+}
+
+// Virtual function, defined in base class.
+NamedAttrMap *Element::attributes() const
+{
+ return attributes(false);
+}
+
+NamedAttrMap* Element::attributes(bool readonly) const
+{
+ updateStyleAttributeIfNeeded();
+ if (!readonly && !namedAttrMap)
+ createAttributeMap();
+ return namedAttrMap.get();
+}
+
+Node::NodeType Element::nodeType() const
+{
+ return ELEMENT_NODE;
+}
+
+const AtomicStringList* Element::getClassList() const
+{
+ return 0;
+}
+
+const AtomicString& Element::getIDAttribute() const
+{
+ return namedAttrMap ? namedAttrMap->id() : nullAtom;
+}
+
+bool Element::hasAttribute(const QualifiedName& name) const
+{
+ return hasAttributeNS(name.namespaceURI(), name.localName());
+}
+
+const AtomicString& Element::getAttribute(const QualifiedName& name) const
+{
+ if (name == styleAttr)
+ updateStyleAttributeIfNeeded();
+
+ if (namedAttrMap)
+ if (Attribute* a = namedAttrMap->getAttributeItem(name))
+ return a->value();
+
+ return nullAtom;
+}
+
+void Element::scrollIntoView(bool alignToTop)
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ IntRect bounds = getRect();
+ if (renderer()) {
+ // Align to the top / bottom and to the closest edge.
+ if (alignToTop)
+ renderer()->enclosingLayer()->scrollRectToVisible(bounds, RenderLayer::gAlignToEdgeIfNeeded, RenderLayer::gAlignTopAlways);
+ else
+ renderer()->enclosingLayer()->scrollRectToVisible(bounds, RenderLayer::gAlignToEdgeIfNeeded, RenderLayer::gAlignBottomAlways);
+ }
+}
+
+void Element::scrollIntoViewIfNeeded(bool centerIfNeeded)
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ IntRect bounds = getRect();
+ if (renderer()) {
+ if (centerIfNeeded)
+ renderer()->enclosingLayer()->scrollRectToVisible(bounds, RenderLayer::gAlignCenterIfNeeded, RenderLayer::gAlignCenterIfNeeded);
+ else
+ renderer()->enclosingLayer()->scrollRectToVisible(bounds, RenderLayer::gAlignToEdgeIfNeeded, RenderLayer::gAlignToEdgeIfNeeded);
+ }
+}
+
+void Element::scrollByUnits(int units, ScrollGranularity granularity)
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject *rend = renderer()) {
+ if (rend->hasOverflowClip()) {
+ ScrollDirection direction = ScrollDown;
+ if (units < 0) {
+ direction = ScrollUp;
+ units = -units;
+ }
+ rend->layer()->scroll(direction, granularity, units);
+ }
+ }
+}
+
+void Element::scrollByLines(int lines)
+{
+ scrollByUnits(lines, ScrollByLine);
+}
+
+void Element::scrollByPages(int pages)
+{
+ scrollByUnits(pages, ScrollByPage);
+}
+
+int Element::offsetLeft()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->offsetLeft();
+ return 0;
+}
+
+int Element::offsetTop()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->offsetTop();
+ return 0;
+}
+
+int Element::offsetWidth()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->offsetWidth();
+ return 0;
+}
+
+int Element::offsetHeight()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->offsetHeight();
+ return 0;
+}
+
+Element* Element::offsetParent()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ if (RenderObject* offsetParent = rend->offsetParent())
+ return static_cast<Element*>(offsetParent->element());
+ return 0;
+}
+
+int Element::clientLeft()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+
+ if (RenderObject* rend = renderer())
+ return rend->clientLeft();
+ return 0;
+}
+
+int Element::clientTop()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+
+ if (RenderObject* rend = renderer())
+ return rend->clientTop();
+ return 0;
+}
+
+int Element::clientWidth()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+
+ // When in strict mode, clientWidth for the document element should return the width of the containing frame.
+ // When in quirks mode, clientWidth for the body element should return the width of the containing frame.
+ bool inCompatMode = document()->inCompatMode();
+ if ((!inCompatMode && document()->documentElement() == this) ||
+ (inCompatMode && isHTMLElement() && document()->body() == this)) {
+ if (FrameView* view = document()->view())
+ return view->visibleWidth();
+ }
+
+
+ if (RenderObject* rend = renderer())
+ return rend->clientWidth();
+ return 0;
+}
+
+int Element::clientHeight()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+
+ // When in strict mode, clientHeight for the document element should return the height of the containing frame.
+ // When in quirks mode, clientHeight for the body element should return the height of the containing frame.
+ bool inCompatMode = document()->inCompatMode();
+
+ if ((!inCompatMode && document()->documentElement() == this) ||
+ (inCompatMode && isHTMLElement() && document()->body() == this)) {
+ if (FrameView* view = document()->view())
+ return view->visibleHeight();
+ }
+
+ if (RenderObject* rend = renderer())
+ return rend->clientHeight();
+ return 0;
+}
+
+int Element::scrollLeft()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->scrollLeft();
+ return 0;
+}
+
+int Element::scrollTop()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->scrollTop();
+ return 0;
+}
+
+void Element::setScrollLeft(int newLeft)
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject *rend = renderer())
+ rend->setScrollLeft(newLeft);
+}
+
+void Element::setScrollTop(int newTop)
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject *rend = renderer())
+ rend->setScrollTop(newTop);
+}
+
+int Element::scrollWidth()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->scrollWidth();
+ return 0;
+}
+
+int Element::scrollHeight()
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ if (RenderObject* rend = renderer())
+ return rend->scrollHeight();
+ return 0;
+}
+
+static inline bool inHTMLDocument(const Element* e)
+{
+ return e && e->document()->isHTMLDocument();
+}
+
+const AtomicString& Element::getAttribute(const String& name) const
+{
+ String localName = inHTMLDocument(this) ? name.lower() : name;
+ if (localName == styleAttr.localName())
+ updateStyleAttributeIfNeeded();
+
+ if (namedAttrMap)
+ if (Attribute* a = namedAttrMap->getAttributeItem(localName))
+ return a->value();
+
+ return nullAtom;
+}
+
+const AtomicString& Element::getAttributeNS(const String& namespaceURI, const String& localName) const
+{
+ return getAttribute(QualifiedName(nullAtom, localName, namespaceURI));
+}
+
+void Element::setAttribute(const String& name, const String& value, ExceptionCode& ec)
+{
+ if (!Document::isValidName(name)) {
+ ec = INVALID_CHARACTER_ERR;
+ return;
+ }
+
+ String localName = inHTMLDocument(this) ? name.lower() : name;
+
+ // allocate attributemap if necessary
+ Attribute* old = attributes(false)->getAttributeItem(localName);
+
+ // NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly
+ if (namedAttrMap->isReadOnlyNode()) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ if (inDocument())
+ document()->incDOMTreeVersion();
+
+ if (localName == idAttr.localName())
+ updateId(old ? old->value() : nullAtom, value);
+
+ if (old && value.isNull())
+ namedAttrMap->removeAttribute(old->name());
+ else if (!old && !value.isNull())
+ namedAttrMap->addAttribute(createAttribute(QualifiedName(nullAtom, localName, nullAtom), value.impl()));
+ else if (old && !value.isNull()) {
+ old->setValue(value);
+ attributeChanged(old);
+ }
+}
+
+void Element::setAttribute(const QualifiedName& name, StringImpl* value, ExceptionCode& ec)
+{
+ if (inDocument())
+ document()->incDOMTreeVersion();
+
+ // allocate attributemap if necessary
+ Attribute* old = attributes(false)->getAttributeItem(name);
+
+ // NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly
+ if (namedAttrMap->isReadOnlyNode()) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ if (name == idAttr)
+ updateId(old ? old->value() : nullAtom, value);
+
+ if (old && !value)
+ namedAttrMap->removeAttribute(name);
+ else if (!old && value)
+ namedAttrMap->addAttribute(createAttribute(name, value));
+ else if (old && value) {
+ old->setValue(value);
+ attributeChanged(old);
+ }
+}
+
+Attribute* Element::createAttribute(const QualifiedName& name, StringImpl* value)
+{
+ return new Attribute(name, value);
+}
+
+void Element::setAttributeMap(NamedAttrMap* list)
+{
+ if (inDocument())
+ document()->incDOMTreeVersion();
+
+ // If setting the whole map changes the id attribute, we need to call updateId.
+
+ Attribute *oldId = namedAttrMap ? namedAttrMap->getAttributeItem(idAttr) : 0;
+ Attribute *newId = list ? list->getAttributeItem(idAttr) : 0;
+
+ if (oldId || newId)
+ updateId(oldId ? oldId->value() : nullAtom, newId ? newId->value() : nullAtom);
+
+ if (namedAttrMap)
+ namedAttrMap->element = 0;
+
+ namedAttrMap = list;
+
+ if (namedAttrMap) {
+ namedAttrMap->element = this;
+ unsigned len = namedAttrMap->length();
+ for (unsigned i = 0; i < len; i++)
+ attributeChanged(namedAttrMap->attrs[i]);
+ // FIXME: What about attributes that were in the old map that are not in the new map?
+ }
+}
+
+bool Element::hasAttributes() const
+{
+ updateStyleAttributeIfNeeded();
+ return namedAttrMap && namedAttrMap->length() > 0;
+}
+
+String Element::nodeName() const
+{
+ return m_tagName.toString();
+}
+
+String Element::nodeNamePreservingCase() const
+{
+ return m_tagName.toString();
+}
+
+void Element::setPrefix(const AtomicString &_prefix, ExceptionCode& ec)
+{
+ checkSetPrefix(_prefix, ec);
+ if (ec)
+ return;
+
+ m_tagName.setPrefix(_prefix);
+}
+
+String Element::baseURI() const
+{
+ KURL xmlbase(getAttribute(baseAttr).deprecatedString());
+
+ if (!xmlbase.protocol().isEmpty())
+ return xmlbase.url();
+
+ Node* parent = parentNode();
+ if (parent)
+ return KURL(parent->baseURI().deprecatedString(), xmlbase.url()).url();
+
+ return xmlbase.url();
+}
+
+Node* Element::insertAdjacentElement(const String& where, Node* newChild, int& exception)
+{
+ if (!newChild) {
+ // IE throws COM Exception E_INVALIDARG; this is the best DOM exception alternative
+ exception = TYPE_MISMATCH_ERR;
+ return 0;
+ }
+
+ // In Internet Explorer if the element has no parent and where is "beforeBegin" or "afterEnd",
+ // a document fragment is created and the elements appended in the correct order. This document
+ // fragment isn't returned anywhere.
+ //
+ // This is impossible for us to implement as the DOM tree does not allow for such structures,
+ // Opera also appears to disallow such usage.
+
+ if (equalIgnoringCase(where, "beforeBegin")) {
+ if (Node* p = parent())
+ return p->insertBefore(newChild, this, exception) ? newChild : 0;
+ } else if (equalIgnoringCase(where, "afterBegin")) {
+ return insertBefore(newChild, firstChild(), exception) ? newChild : 0;
+ } else if (equalIgnoringCase(where, "beforeEnd")) {
+ return appendChild(newChild, exception) ? newChild : 0;
+ } else if (equalIgnoringCase(where, "afterEnd")) {
+ if (Node* p = parent())
+ return p->insertBefore(newChild, nextSibling(), exception) ? newChild : 0;
+ } else {
+ // IE throws COM Exception E_INVALIDARG; this is the best DOM exception alternative
+ exception = NOT_SUPPORTED_ERR;
+ }
+ return 0;
+}
+
+bool Element::contains(const Node* node) const
+{
+ if (!node)
+ return false;
+ return this == node || node->isDescendantOf(this);
+}
+
+void Element::createAttributeMap() const
+{
+ namedAttrMap = new NamedAttrMap(const_cast<Element*>(this));
+}
+
+bool Element::isURLAttribute(Attribute *attr) const
+{
+ return false;
+}
+
+RenderStyle *Element::styleForRenderer(RenderObject *parentRenderer)
+{
+ return document()->styleSelector()->styleForElement(this);
+}
+
+RenderObject *Element::createRenderer(RenderArena *arena, RenderStyle *style)
+{
+ if (document()->documentElement() == this && style->display() == NONE) {
+ // Ignore display: none on root elements. Force a display of block in that case.
+ RenderBlock* result = new (arena) RenderBlock(this);
+ if (result) result->setStyle(style);
+ return result;
+ }
+ return RenderObject::createObject(this, style);
+}
+
+
+void Element::insertedIntoDocument()
+{
+ // need to do superclass processing first so inDocument() is true
+ // by the time we reach updateId
+ ContainerNode::insertedIntoDocument();
+
+ if (hasID()) {
+ NamedAttrMap* attrs = attributes(true);
+ if (attrs) {
+ Attribute* idItem = attrs->getAttributeItem(idAttr);
+ if (idItem && !idItem->isNull())
+ updateId(nullAtom, idItem->value());
+ }
+ }
+}
+
+void Element::removedFromDocument()
+{
+ if (hasID()) {
+ NamedAttrMap* attrs = attributes(true);
+ if (attrs) {
+ Attribute* idItem = attrs->getAttributeItem(idAttr);
+ if (idItem && !idItem->isNull())
+ updateId(idItem->value(), nullAtom);
+ }
+ }
+
+ ContainerNode::removedFromDocument();
+}
+
+void Element::attach()
+{
+ createRendererIfNeeded();
+ ContainerNode::attach();
+ if (ElementRareData* rd = rareData()) {
+ if (rd->m_needsFocusAppearanceUpdateSoonAfterAttach) {
+ if (isFocusable() && document()->focusedNode() == this)
+ document()->updateFocusAppearanceSoon();
+ rd->m_needsFocusAppearanceUpdateSoonAfterAttach = false;
+ }
+ }
+}
+
+void Element::detach()
+{
+ cancelFocusAppearanceUpdate();
+ if (ElementRareData* rd = rareData())
+ rd->resetComputedStyle(this);
+ ContainerNode::detach();
+}
+
+void Element::recalcStyle(StyleChange change)
+{
+ // ### should go away and be done in renderobject
+ RenderStyle* _style = renderStyle();
+ bool hasParentStyle = parentNode() ? parentNode()->renderStyle() : false;
+
+#if ENABLE(SVG)
+ if (!hasParentStyle && isShadowNode() && isSVGElement())
+ hasParentStyle = true;
+#endif
+
+ if ((change > NoChange || changed())) {
+ if (ElementRareData* rd = rareData())
+ rd->resetComputedStyle(this);
+ }
+ if (hasParentStyle && (change >= Inherit || changed())) {
+ RenderStyle *newStyle = document()->styleSelector()->styleForElement(this);
+ StyleChange ch = diff(_style, newStyle);
+ if (ch == Detach) {
+ if (attached())
+ detach();
+ // ### Suboptimal. Style gets calculated again.
+ attach();
+ // attach recalulates the style for all children. No need to do it twice.
+ setChanged(NoStyleChange);
+ setHasChangedChild(false);
+ newStyle->deref(document()->renderArena());
+ return;
+ }
+ else if (ch != NoChange) {
+ if (newStyle)
+ setRenderStyle(newStyle);
+ }
+ else if (changed() && newStyle && (document()->usesSiblingRules() || document()->usesDescendantRules())) {
+ // Although no change occurred, we use the new style so that the cousin style sharing code won't get
+ // fooled into believing this style is the same. This is only necessary if the document actually uses
+ // sibling/descendant rules, since otherwise it isn't possible for ancestor styles to affect sharing of
+ // descendants.
+ if (renderer())
+ renderer()->setStyleInternal(newStyle);
+ else
+ setRenderStyle(newStyle);
+ }
+
+ newStyle->deref(document()->renderArena());
+
+ if (change != Force) {
+ if (document()->usesDescendantRules() && styleChangeType() == FullStyleChange)
+ change = Force;
+ else
+ change = ch;
+ }
+ }
+
+ for (Node *n = firstChild(); n; n = n->nextSibling()) {
+ if (change >= Inherit || n->isTextNode() || n->hasChangedChild() || n->changed())
+ n->recalcStyle(change);
+ }
+
+ setChanged(NoStyleChange);
+ setHasChangedChild(false);
+}
+
+bool Element::childTypeAllowed(NodeType type)
+{
+ switch (type) {
+ case ELEMENT_NODE:
+ case TEXT_NODE:
+ case COMMENT_NODE:
+ case PROCESSING_INSTRUCTION_NODE:
+ case CDATA_SECTION_NODE:
+ case ENTITY_REFERENCE_NODE:
+ return true;
+ break;
+ default:
+ return false;
+ }
+}
+
+void Element::dispatchAttrRemovalEvent(Attribute*)
+{
+ ASSERT(!eventDispatchForbidden());
+#if 0
+ if (!document()->hasListenerType(Document::DOMATTRMODIFIED_LISTENER))
+ return;
+ ExceptionCode ec = 0;
+ dispatchEvent(new MutationEvent(DOMAttrModifiedEvent, true, false, attr, attr->value(),
+ attr->value(), document()->attrName(attr->id()), MutationEvent::REMOVAL), ec);
+#endif
+}
+
+void Element::dispatchAttrAdditionEvent(Attribute *attr)
+{
+ ASSERT(!eventDispatchForbidden());
+#if 0
+ if (!document()->hasListenerType(Document::DOMATTRMODIFIED_LISTENER))
+ return;
+ ExceptionCode ec = 0;
+ dispatchEvent(new MutationEvent(DOMAttrModifiedEvent, true, false, attr, attr->value(),
+ attr->value(),document()->attrName(attr->id()), MutationEvent::ADDITION), ec);
+#endif
+}
+
+String Element::openTagStartToString() const
+{
+ String result = "<" + nodeName();
+
+ NamedAttrMap *attrMap = attributes(true);
+
+ if (attrMap) {
+ unsigned numAttrs = attrMap->length();
+ for (unsigned i = 0; i < numAttrs; i++) {
+ result += " ";
+
+ Attribute *attribute = attrMap->attributeItem(i);
+ result += attribute->name().toString();
+ if (!attribute->value().isNull()) {
+ result += "=\"";
+ // FIXME: substitute entities for any instances of " or '
+ result += attribute->value();
+ result += "\"";
+ }
+ }
+ }
+
+ return result;
+}
+
+String Element::toString() const
+{
+ String result = openTagStartToString();
+
+ if (hasChildNodes()) {
+ result += ">";
+
+ for (Node *child = firstChild(); child != NULL; child = child->nextSibling()) {
+ result += child->toString();
+ }
+
+ result += "</";
+ result += nodeName();
+ result += ">";
+ } else {
+ result += " />";
+ }
+
+ return result;
+}
+
+void Element::updateId(const AtomicString& oldId, const AtomicString& newId)
+{
+ if (!inDocument())
+ return;
+
+ if (oldId == newId)
+ return;
+
+ Document* doc = document();
+ if (!oldId.isEmpty())
+ doc->removeElementById(oldId, this);
+ if (!newId.isEmpty())
+ doc->addElementById(newId, this);
+}
+
+#ifndef NDEBUG
+void Element::dump(TextStream *stream, DeprecatedString ind) const
+{
+ updateStyleAttributeIfNeeded();
+ if (namedAttrMap) {
+ for (unsigned i = 0; i < namedAttrMap->length(); i++) {
+ Attribute *attr = namedAttrMap->attributeItem(i);
+ *stream << " " << attr->name().localName().deprecatedString().ascii()
+ << "=\"" << attr->value().deprecatedString().ascii() << "\"";
+ }
+ }
+
+ ContainerNode::dump(stream,ind);
+}
+#endif
+
+#ifndef NDEBUG
+void Element::formatForDebugger(char *buffer, unsigned length) const
+{
+ String result;
+ String s;
+
+ s = nodeName();
+ if (s.length() > 0) {
+ result += s;
+ }
+
+ s = getAttribute(idAttr);
+ if (s.length() > 0) {
+ if (result.length() > 0)
+ result += "; ";
+ result += "id=";
+ result += s;
+ }
+
+ s = getAttribute(classAttr);
+ if (s.length() > 0) {
+ if (result.length() > 0)
+ result += "; ";
+ result += "class=";
+ result += s;
+ }
+
+ strncpy(buffer, result.deprecatedString().latin1(), length - 1);
+}
+#endif
+
+PassRefPtr<Attr> Element::setAttributeNode(Attr *attr, ExceptionCode& ec)
+{
+ ASSERT(attr);
+ return static_pointer_cast<Attr>(attributes(false)->setNamedItem(attr, ec));
+}
+
+PassRefPtr<Attr> Element::setAttributeNodeNS(Attr* attr, ExceptionCode& ec)
+{
+ ASSERT(attr);
+ return static_pointer_cast<Attr>(attributes(false)->setNamedItem(attr, ec));
+}
+
+PassRefPtr<Attr> Element::removeAttributeNode(Attr *attr, ExceptionCode& ec)
+{
+ if (!attr || attr->ownerElement() != this) {
+ ec = NOT_FOUND_ERR;
+ return 0;
+ }
+ if (document() != attr->document()) {
+ ec = WRONG_DOCUMENT_ERR;
+ return 0;
+ }
+
+ NamedAttrMap *attrs = attributes(true);
+ if (!attrs)
+ return 0;
+
+ return static_pointer_cast<Attr>(attrs->removeNamedItem(attr->qualifiedName(), ec));
+}
+
+void Element::setAttributeNS(const String& namespaceURI, const String& qualifiedName, const String& value, ExceptionCode& ec)
+{
+ String prefix, localName;
+ if (!Document::parseQualifiedName(qualifiedName, prefix, localName)) {
+ ec = INVALID_CHARACTER_ERR;
+ return;
+ }
+ setAttribute(QualifiedName(prefix, localName, namespaceURI), value.impl(), ec);
+}
+
+void Element::removeAttribute(const String& name, ExceptionCode& ec)
+{
+ String localName = inHTMLDocument(this) ? name.lower() : name;
+
+ if (namedAttrMap) {
+ namedAttrMap->removeNamedItem(localName, ec);
+ if (ec == NOT_FOUND_ERR)
+ ec = 0;
+ }
+}
+
+void Element::removeAttributeNS(const String& namespaceURI, const String& localName, ExceptionCode& ec)
+{
+ removeAttribute(QualifiedName(nullAtom, localName, namespaceURI), ec);
+}
+
+PassRefPtr<Attr> Element::getAttributeNode(const String& name)
+{
+ NamedAttrMap* attrs = attributes(true);
+ if (!attrs)
+ return 0;
+ String localName = inHTMLDocument(this) ? name.lower() : name;
+ return static_pointer_cast<Attr>(attrs->getNamedItem(localName));
+}
+
+PassRefPtr<Attr> Element::getAttributeNodeNS(const String& namespaceURI, const String& localName)
+{
+ NamedAttrMap* attrs = attributes(true);
+ if (!attrs)
+ return 0;
+ return static_pointer_cast<Attr>(attrs->getNamedItem(QualifiedName(nullAtom, localName, namespaceURI)));
+}
+
+bool Element::hasAttribute(const String& name) const
+{
+ NamedAttrMap* attrs = attributes(true);
+ if (!attrs)
+ return false;
+ String localName = inHTMLDocument(this) ? name.lower() : name;
+ return attrs->getAttributeItem(localName);
+}
+
+bool Element::hasAttributeNS(const String& namespaceURI, const String& localName) const
+{
+ NamedAttrMap* attrs = attributes(true);
+ if (!attrs)
+ return false;
+ return attrs->getAttributeItem(QualifiedName(nullAtom, localName, namespaceURI));
+}
+
+CSSStyleDeclaration *Element::style()
+{
+ return 0;
+}
+
+void Element::focus(bool restorePreviousSelection)
+{
+ Document* doc = document();
+ if (doc->focusedNode() == this)
+ return;
+
+ doc->updateLayoutIgnorePendingStylesheets();
+
+ if (!supportsFocus())
+ return;
+
+ if (Page* page = doc->page())
+ page->focusController()->setFocusedNode(this, doc->frame());
+
+ if (!isFocusable()) {
+ createRareData()->m_needsFocusAppearanceUpdateSoonAfterAttach = true;
+ return;
+ }
+
+ cancelFocusAppearanceUpdate();
+ updateFocusAppearance(restorePreviousSelection);
+}
+
+void Element::updateFocusAppearance(bool restorePreviousSelection)
+{
+ if (this == rootEditableElement()) {
+ Frame* frame = document()->frame();
+ if (!frame)
+ return;
+
+ // FIXME: We should restore the previous selection if there is one.
+ Selection newSelection = hasTagName(htmlTag) || hasTagName(bodyTag) ? Selection(Position(this, 0), DOWNSTREAM) : Selection::selectionFromContentsOfNode(this);
+
+ if (frame->shouldChangeSelection(newSelection)) {
+ frame->selectionController()->setSelection(newSelection);
+ frame->revealSelection();
+ }
+ } else if (renderer() && !renderer()->isWidget())
+ renderer()->enclosingLayer()->scrollRectToVisible(getRect());
+}
+
+void Element::blur()
+{
+ cancelFocusAppearanceUpdate();
+ Document* doc = document();
+ if (doc->focusedNode() == this) {
+ if (doc->frame())
+ doc->frame()->page()->focusController()->setFocusedNode(0, doc->frame());
+ else
+ doc->setFocusedNode(0);
+ }
+}
+
+String Element::innerText() const
+{
+ // We need to update layout, since plainText uses line boxes in the render tree.
+ document()->updateLayoutIgnorePendingStylesheets();
+
+ if (!renderer())
+ return textContent(true);
+
+ return plainText(rangeOfContents(const_cast<Element*>(this)).get());
+}
+
+String Element::outerText() const
+{
+ // Getting outerText is the same as getting innerText, only
+ // setting is different. You would think this should get the plain
+ // text for the outer range, but this is wrong, <br> for instance
+ // would return different values for inner and outer text by such
+ // a rule, but it doesn't in WinIE, and we want to match that.
+ return innerText();
+}
+
+String Element::title() const
+{
+ return String();
+}
+
+IntSize Element::minimumSizeForResizing() const
+{
+ const ElementRareData* rd = rareData();
+ return rd ? rd->m_minimumSizeForResizing : defaultMinimumSizeForResizing();
+}
+
+void Element::setMinimumSizeForResizing(const IntSize& size)
+{
+ if (size == defaultMinimumSizeForResizing() && !rareData())
+ return;
+ createRareData()->m_minimumSizeForResizing = size;
+}
+
+RenderStyle* Element::computedStyle()
+{
+ if (RenderStyle* usedStyle = renderStyle())
+ return usedStyle;
+
+ if (!attached())
+ // FIXME: Try to do better than this. Ensure that styleForElement() works for elements that are not in the
+ // document tree and figure out when to destroy the computed style for such elements.
+ return 0;
+
+ ElementRareData* rd = createRareData();
+ if (!rd->m_computedStyle)
+ rd->m_computedStyle = document()->styleSelector()->styleForElement(this, parent() ? parent()->computedStyle() : 0);
+ return rd->m_computedStyle;
+}
+
+void Element::cancelFocusAppearanceUpdate()
+{
+ if (ElementRareData* rd = rareData())
+ rd->m_needsFocusAppearanceUpdateSoonAfterAttach = false;
+ if (document()->focusedNode() == this)
+ document()->cancelFocusAppearanceUpdate();
+}
+
+}