diff -r 000000000000 -r dd21522fd290 webengine/osswebengine/WebCore/dom/Element.cpp
--- /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();
+}
+
+}