--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/html/HTMLElement.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,1026 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ *
+ * 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 "HTMLElement.h"
+
+#include "Attribute.h"
+#include "CSSPropertyNames.h"
+#include "CSSValueKeywords.h"
+#include "DocumentFragment.h"
+#include "Event.h"
+#include "EventListener.h"
+#include "EventNames.h"
+#include "ExceptionCode.h"
+#include "Frame.h"
+#include "HTMLBRElement.h"
+#include "HTMLCollection.h"
+#include "HTMLDocument.h"
+#include "HTMLElementFactory.h"
+#include "HTMLFormElement.h"
+#include "HTMLNames.h"
+#include "RenderWordBreak.h"
+#include "ScriptEventListener.h"
+#include "Settings.h"
+#include "Text.h"
+#include "TextIterator.h"
+#include "markup.h"
+#include <wtf/StdLibExtras.h>
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+using std::min;
+using std::max;
+
+PassRefPtr<HTMLElement> HTMLElement::create(const QualifiedName& tagName, Document* document)
+{
+ return adoptRef(new HTMLElement(tagName, document));
+}
+
+String HTMLElement::nodeName() const
+{
+ // FIXME: Would be nice to have an atomicstring lookup based off uppercase chars that does not have to copy
+ // the string on a hit in the hash.
+ // FIXME: We should have a way to detect XHTML elements and replace the hasPrefix() check with it.
+ if (document()->isHTMLDocument() && !tagQName().hasPrefix())
+ return tagQName().localNameUpper();
+ return Element::nodeName();
+}
+
+HTMLTagStatus HTMLElement::endTagRequirement() const
+{
+ if (hasLocalName(wbrTag))
+ return TagStatusForbidden;
+ if (hasLocalName(dtTag) || hasLocalName(ddTag) || hasLocalName(rpTag) || hasLocalName(rtTag))
+ return TagStatusOptional;
+
+ // Same values as <span>. This way custom tag name elements will behave like inline spans.
+ return TagStatusRequired;
+}
+
+struct Empty1IntHashTraits : HashTraits<int> {
+ static const bool emptyValueIsZero = false;
+ static int emptyValue() { return 1; }
+};
+typedef HashMap<AtomicStringImpl*, int, DefaultHash<AtomicStringImpl*>::Hash, HashTraits<AtomicStringImpl*>, Empty1IntHashTraits> TagPriorityMap;
+
+static const TagPriorityMap* createTagPriorityMap()
+{
+ TagPriorityMap* map = new TagPriorityMap;
+
+ map->add(wbrTag.localName().impl(), 0);
+
+ map->add(addressTag.localName().impl(), 3);
+ map->add(ddTag.localName().impl(), 3);
+ map->add(dtTag.localName().impl(), 3);
+ map->add(noscriptTag.localName().impl(), 3);
+ map->add(rpTag.localName().impl(), 3);
+ map->add(rtTag.localName().impl(), 3);
+
+ // 5 is same as <div>'s priority.
+ map->add(articleTag.localName().impl(), 5);
+ map->add(asideTag.localName().impl(), 5);
+ map->add(centerTag.localName().impl(), 5);
+ map->add(footerTag.localName().impl(), 5);
+ map->add(headerTag.localName().impl(), 5);
+ map->add(hgroupTag.localName().impl(), 5);
+ map->add(nobrTag.localName().impl(), 5);
+ map->add(rubyTag.localName().impl(), 5);
+ map->add(navTag.localName().impl(), 5);
+ map->add(sectionTag.localName().impl(), 5);
+
+ map->add(noembedTag.localName().impl(), 10);
+ map->add(noframesTag.localName().impl(), 10);
+
+ // TagPriorityMap returns 1 for unregistered tags. It's same as <span>.
+ // This way custom tag name elements will behave like inline spans.
+ return map;
+}
+
+int HTMLElement::tagPriority() const
+{
+ static const TagPriorityMap* tagPriorityMap = createTagPriorityMap();
+ return tagPriorityMap->get(localName().impl());
+}
+
+bool HTMLElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
+{
+ if (attrName == alignAttr ||
+ attrName == contenteditableAttr) {
+ result = eUniversal;
+ return false;
+ }
+ if (attrName == dirAttr) {
+ result = hasLocalName(bdoTag) ? eBDO : eUniversal;
+ return false;
+ }
+
+ return StyledElement::mapToEntry(attrName, result);
+}
+
+void HTMLElement::parseMappedAttribute(Attribute* attr)
+{
+ if (isIdAttributeName(attr->name()) || attr->name() == classAttr || attr->name() == styleAttr)
+ return StyledElement::parseMappedAttribute(attr);
+
+ String indexstring;
+ if (attr->name() == alignAttr) {
+ if (equalIgnoringCase(attr->value(), "middle"))
+ addCSSProperty(attr, CSSPropertyTextAlign, "center");
+ else
+ addCSSProperty(attr, CSSPropertyTextAlign, attr->value());
+ } else if (attr->name() == contenteditableAttr) {
+ setContentEditable(attr);
+ } else if (attr->name() == tabindexAttr) {
+ indexstring = getAttribute(tabindexAttr);
+ if (indexstring.length()) {
+ bool parsedOK;
+ int tabindex = indexstring.toIntStrict(&parsedOK);
+ if (parsedOK)
+ // Clamp tabindex to the range of 'short' to match Firefox's behavior.
+ setTabIndexExplicitly(max(static_cast<int>(std::numeric_limits<short>::min()), min(tabindex, static_cast<int>(std::numeric_limits<short>::max()))));
+ }
+ } else if (attr->name() == langAttr) {
+ // FIXME: Implement
+ } else if (attr->name() == dirAttr) {
+ addCSSProperty(attr, CSSPropertyDirection, attr->value());
+ addCSSProperty(attr, CSSPropertyUnicodeBidi, hasLocalName(bdoTag) ? CSSValueBidiOverride : CSSValueEmbed);
+ } else if (attr->name() == draggableAttr) {
+ const AtomicString& value = attr->value();
+ if (equalIgnoringCase(value, "true")) {
+ addCSSProperty(attr, CSSPropertyWebkitUserDrag, CSSValueElement);
+ addCSSProperty(attr, CSSPropertyWebkitUserSelect, CSSValueNone);
+ } else if (equalIgnoringCase(value, "false"))
+ addCSSProperty(attr, CSSPropertyWebkitUserDrag, CSSValueNone);
+ }
+// standard events
+ else if (attr->name() == onclickAttr) {
+ setAttributeEventListener(eventNames().clickEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == oncontextmenuAttr) {
+ setAttributeEventListener(eventNames().contextmenuEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondblclickAttr) {
+ setAttributeEventListener(eventNames().dblclickEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onmousedownAttr) {
+ setAttributeEventListener(eventNames().mousedownEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onmousemoveAttr) {
+ setAttributeEventListener(eventNames().mousemoveEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onmouseoutAttr) {
+ setAttributeEventListener(eventNames().mouseoutEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onmouseoverAttr) {
+ setAttributeEventListener(eventNames().mouseoverEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onmouseupAttr) {
+ setAttributeEventListener(eventNames().mouseupEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onmousewheelAttr) {
+ setAttributeEventListener(eventNames().mousewheelEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onfocusAttr) {
+ setAttributeEventListener(eventNames().focusEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onfocusinAttr) {
+ setAttributeEventListener(eventNames().focusinEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onfocusoutAttr) {
+ setAttributeEventListener(eventNames().focusoutEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onblurAttr) {
+ setAttributeEventListener(eventNames().blurEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onkeydownAttr) {
+ setAttributeEventListener(eventNames().keydownEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onkeypressAttr) {
+ setAttributeEventListener(eventNames().keypressEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onkeyupAttr) {
+ setAttributeEventListener(eventNames().keyupEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onscrollAttr) {
+ setAttributeEventListener(eventNames().scrollEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onbeforecutAttr) {
+ setAttributeEventListener(eventNames().beforecutEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == oncutAttr) {
+ setAttributeEventListener(eventNames().cutEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onbeforecopyAttr) {
+ setAttributeEventListener(eventNames().beforecopyEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == oncopyAttr) {
+ setAttributeEventListener(eventNames().copyEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onbeforepasteAttr) {
+ setAttributeEventListener(eventNames().beforepasteEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onpasteAttr) {
+ setAttributeEventListener(eventNames().pasteEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondragenterAttr) {
+ setAttributeEventListener(eventNames().dragenterEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondragoverAttr) {
+ setAttributeEventListener(eventNames().dragoverEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondragleaveAttr) {
+ setAttributeEventListener(eventNames().dragleaveEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondropAttr) {
+ setAttributeEventListener(eventNames().dropEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondragstartAttr) {
+ setAttributeEventListener(eventNames().dragstartEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondragAttr) {
+ setAttributeEventListener(eventNames().dragEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ondragendAttr) {
+ setAttributeEventListener(eventNames().dragendEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onselectstartAttr) {
+ setAttributeEventListener(eventNames().selectstartEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onsubmitAttr) {
+ setAttributeEventListener(eventNames().submitEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onerrorAttr) {
+ setAttributeEventListener(eventNames().errorEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onwebkitanimationstartAttr) {
+ setAttributeEventListener(eventNames().webkitAnimationStartEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onwebkitanimationiterationAttr) {
+ setAttributeEventListener(eventNames().webkitAnimationIterationEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onwebkitanimationendAttr) {
+ setAttributeEventListener(eventNames().webkitAnimationEndEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == onwebkittransitionendAttr) {
+ setAttributeEventListener(eventNames().webkitTransitionEndEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == oninputAttr) {
+ setAttributeEventListener(eventNames().inputEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == oninvalidAttr) {
+ setAttributeEventListener(eventNames().invalidEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ontouchstartAttr) {
+ setAttributeEventListener(eventNames().touchstartEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ontouchmoveAttr) {
+ setAttributeEventListener(eventNames().touchmoveEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ontouchendAttr) {
+ setAttributeEventListener(eventNames().touchendEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ontouchcancelAttr) {
+ setAttributeEventListener(eventNames().touchcancelEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ontransformactionstartAttr) {
+ setAttributeEventListener(eventNames().transformactionstartEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ontransformactionupdateAttr) {
+ setAttributeEventListener(eventNames().transformactionupdateEvent, createAttributeEventListener(this, attr));
+ } else if (attr->name() == ontransformactionendAttr) {
+ setAttributeEventListener(eventNames().transformactionendEvent, createAttributeEventListener(this, attr));
+ }
+}
+
+String HTMLElement::innerHTML() const
+{
+ return createMarkup(this, ChildrenOnly);
+}
+
+String HTMLElement::outerHTML() const
+{
+ return createMarkup(this);
+}
+
+PassRefPtr<DocumentFragment> HTMLElement::createContextualFragment(const String& markup, FragmentScriptingPermission scriptingPermission)
+{
+ // The following is in accordance with the definition as used by IE.
+ if (endTagRequirement() == TagStatusForbidden)
+ return 0;
+
+ if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
+ hasLocalName(headTag) || hasLocalName(styleTag) || hasLocalName(titleTag))
+ return 0;
+
+ return Element::createContextualFragment(markup, scriptingPermission);
+}
+
+static inline bool hasOneChild(ContainerNode* node)
+{
+ Node* firstChild = node->firstChild();
+ return firstChild && !firstChild->nextSibling();
+}
+
+static inline bool hasOneTextChild(ContainerNode* node)
+{
+ return hasOneChild(node) && node->firstChild()->isTextNode();
+}
+
+static void replaceChildrenWithFragment(HTMLElement* element, PassRefPtr<DocumentFragment> fragment, ExceptionCode& ec)
+{
+ if (!fragment->firstChild()) {
+ element->removeChildren();
+ return;
+ }
+
+ if (hasOneTextChild(element) && hasOneTextChild(fragment.get())) {
+ static_cast<Text*>(element->firstChild())->setData(static_cast<Text*>(fragment->firstChild())->data(), ec);
+ return;
+ }
+
+ if (hasOneChild(element)) {
+ element->replaceChild(fragment, element->firstChild(), ec);
+ return;
+ }
+
+ element->removeChildren();
+ element->appendChild(fragment, ec);
+}
+
+static void replaceChildrenWithText(HTMLElement* element, const String& text, ExceptionCode& ec)
+{
+ if (hasOneTextChild(element)) {
+ static_cast<Text*>(element->firstChild())->setData(text, ec);
+ return;
+ }
+
+ RefPtr<Text> textNode = Text::create(element->document(), text);
+
+ if (hasOneChild(element)) {
+ element->replaceChild(textNode.release(), element->firstChild(), ec);
+ return;
+ }
+
+ element->removeChildren();
+ element->appendChild(textNode.release(), ec);
+}
+
+void HTMLElement::setInnerHTML(const String& html, ExceptionCode& ec)
+{
+ if (hasLocalName(scriptTag) || hasLocalName(styleTag)) {
+ // Script and CSS source shouldn't be parsed as HTML.
+ removeChildren();
+ appendChild(document()->createTextNode(html), ec);
+ return;
+ }
+
+ RefPtr<DocumentFragment> fragment = createContextualFragment(html);
+ if (!fragment) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ replaceChildrenWithFragment(this, fragment.release(), ec);
+}
+
+void HTMLElement::setOuterHTML(const String& html, ExceptionCode& ec)
+{
+ Node* p = parent();
+ if (!p || !p->isHTMLElement()) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ HTMLElement* parent = static_cast<HTMLElement*>(p);
+ RefPtr<DocumentFragment> fragment = parent->createContextualFragment(html);
+ if (!fragment) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ // FIXME: Why doesn't this have code to merge neighboring text nodes the way setOuterText does?
+
+ parent->replaceChild(fragment.release(), this, ec);
+}
+
+void HTMLElement::setInnerText(const String& text, ExceptionCode& ec)
+{
+ // Follow the IE specs about when this is allowed.
+ if (endTagRequirement() == TagStatusForbidden) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+ if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
+ hasLocalName(headTag) || hasLocalName(htmlTag) || hasLocalName(tableTag) ||
+ hasLocalName(tbodyTag) || hasLocalName(tfootTag) || hasLocalName(theadTag) ||
+ hasLocalName(trTag)) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ // FIXME: This doesn't take whitespace collapsing into account at all.
+
+ if (!text.contains('\n') && !text.contains('\r')) {
+ if (text.isEmpty()) {
+ removeChildren();
+ return;
+ }
+ replaceChildrenWithText(this, text, ec);
+ return;
+ }
+
+ // FIXME: Do we need to be able to detect preserveNewline style even when there's no renderer?
+ // FIXME: Can the renderer be out of date here? Do we need to call updateStyleIfNeeded?
+ // For example, for the contents of textarea elements that are display:none?
+ RenderObject* r = renderer();
+ if (r && r->style()->preserveNewline()) {
+ if (!text.contains('\r')) {
+ replaceChildrenWithText(this, text, ec);
+ return;
+ }
+ String textWithConsistentLineBreaks = text;
+ textWithConsistentLineBreaks.replace("\r\n", "\n");
+ textWithConsistentLineBreaks.replace('\r', '\n');
+ replaceChildrenWithText(this, textWithConsistentLineBreaks, ec);
+ return;
+ }
+
+ // Add text nodes and <br> elements.
+ ec = 0;
+ RefPtr<DocumentFragment> fragment = DocumentFragment::create(document());
+ int lineStart = 0;
+ UChar prev = 0;
+ int length = text.length();
+ for (int i = 0; i < length; ++i) {
+ UChar c = text[i];
+ if (c == '\n' || c == '\r') {
+ if (i > lineStart) {
+ fragment->appendChild(Text::create(document(), text.substring(lineStart, i - lineStart)), ec);
+ if (ec)
+ return;
+ }
+ if (!(c == '\n' && i != 0 && prev == '\r')) {
+ fragment->appendChild(HTMLBRElement::create(document()), ec);
+ if (ec)
+ return;
+ }
+ lineStart = i + 1;
+ }
+ prev = c;
+ }
+ if (length > lineStart)
+ fragment->appendChild(Text::create(document(), text.substring(lineStart, length - lineStart)), ec);
+ replaceChildrenWithFragment(this, fragment.release(), ec);
+}
+
+void HTMLElement::setOuterText(const String &text, ExceptionCode& ec)
+{
+ // Follow the IE specs about when this is allowed.
+ if (endTagRequirement() == TagStatusForbidden) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+ if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
+ hasLocalName(headTag) || hasLocalName(htmlTag) || hasLocalName(tableTag) ||
+ hasLocalName(tbodyTag) || hasLocalName(tfootTag) || hasLocalName(theadTag) ||
+ hasLocalName(trTag)) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ Node* parent = parentNode();
+ if (!parent) {
+ ec = NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ // FIXME: This creates a new text node even when the text is empty.
+ // FIXME: This creates a single text node even when the text has CR and LF
+ // characters in it. Instead it should create <br> elements.
+ RefPtr<Text> t = Text::create(document(), text);
+ ec = 0;
+ parent->replaceChild(t, this, ec);
+ if (ec)
+ return;
+
+ // Is previous node a text node? If so, merge into it.
+ Node* prev = t->previousSibling();
+ if (prev && prev->isTextNode()) {
+ Text* textPrev = static_cast<Text*>(prev);
+ textPrev->appendData(t->data(), ec);
+ if (ec)
+ return;
+ t->remove(ec);
+ if (ec)
+ return;
+ t = textPrev;
+ }
+
+ // Is next node a text node? If so, merge it in.
+ Node* next = t->nextSibling();
+ if (next && next->isTextNode()) {
+ Text* textNext = static_cast<Text*>(next);
+ t->appendData(textNext->data(), ec);
+ if (ec)
+ return;
+ textNext->remove(ec);
+ if (ec)
+ return;
+ }
+}
+
+Node* HTMLElement::insertAdjacent(const String& where, Node* newChild, ExceptionCode& ec)
+{
+ // 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, ec) ? newChild : 0;
+ return 0;
+ }
+
+ if (equalIgnoringCase(where, "afterBegin"))
+ return insertBefore(newChild, firstChild(), ec) ? newChild : 0;
+
+ if (equalIgnoringCase(where, "beforeEnd"))
+ return appendChild(newChild, ec) ? newChild : 0;
+
+ if (equalIgnoringCase(where, "afterEnd")) {
+ if (Node* p = parent())
+ return p->insertBefore(newChild, nextSibling(), ec) ? newChild : 0;
+ return 0;
+ }
+
+ // IE throws COM Exception E_INVALIDARG; this is the best DOM exception alternative.
+ ec = NOT_SUPPORTED_ERR;
+ return 0;
+}
+
+Element* HTMLElement::insertAdjacentElement(const String& where, Element* newChild, ExceptionCode& ec)
+{
+ if (!newChild) {
+ // IE throws COM Exception E_INVALIDARG; this is the best DOM exception alternative.
+ ec = TYPE_MISMATCH_ERR;
+ return 0;
+ }
+
+ Node* returnValue = insertAdjacent(where, newChild, ec);
+ ASSERT(!returnValue || returnValue->isElementNode());
+ return static_cast<Element*>(returnValue);
+}
+
+void HTMLElement::insertAdjacentHTML(const String& where, const String& markup, ExceptionCode& ec)
+{
+ RefPtr<DocumentFragment> fragment = document()->createDocumentFragment();
+ if (document()->isHTMLDocument())
+ fragment->parseHTML(markup);
+ else {
+ if (!fragment->parseXML(markup, this))
+ // FIXME: We should propagate a syntax error exception out here.
+ return;
+ }
+
+ insertAdjacent(where, fragment.get(), ec);
+}
+
+void HTMLElement::insertAdjacentText(const String& where, const String& text, ExceptionCode& ec)
+{
+ RefPtr<Text> textNode = document()->createTextNode(text);
+ insertAdjacent(where, textNode.get(), ec);
+}
+
+void HTMLElement::addHTMLAlignment(Attribute* attr)
+{
+ addHTMLAlignmentToStyledElement(this, attr);
+}
+
+void HTMLElement::addHTMLAlignmentToStyledElement(StyledElement* element, Attribute* attr)
+{
+ // Vertical alignment with respect to the current baseline of the text
+ // right or left means floating images.
+ int floatValue = CSSValueInvalid;
+ int verticalAlignValue = CSSValueInvalid;
+
+ const AtomicString& alignment = attr->value();
+ if (equalIgnoringCase(alignment, "absmiddle"))
+ verticalAlignValue = CSSValueMiddle;
+ else if (equalIgnoringCase(alignment, "absbottom"))
+ verticalAlignValue = CSSValueBottom;
+ else if (equalIgnoringCase(alignment, "left")) {
+ floatValue = CSSValueLeft;
+ verticalAlignValue = CSSValueTop;
+ } else if (equalIgnoringCase(alignment, "right")) {
+ floatValue = CSSValueRight;
+ verticalAlignValue = CSSValueTop;
+ } else if (equalIgnoringCase(alignment, "top"))
+ verticalAlignValue = CSSValueTop;
+ else if (equalIgnoringCase(alignment, "middle"))
+ verticalAlignValue = CSSValueWebkitBaselineMiddle;
+ else if (equalIgnoringCase(alignment, "center"))
+ verticalAlignValue = CSSValueMiddle;
+ else if (equalIgnoringCase(alignment, "bottom"))
+ verticalAlignValue = CSSValueBaseline;
+ else if (equalIgnoringCase(alignment, "texttop"))
+ verticalAlignValue = CSSValueTextTop;
+
+ if (floatValue != CSSValueInvalid)
+ element->addCSSProperty(attr, CSSPropertyFloat, floatValue);
+
+ if (verticalAlignValue != CSSValueInvalid)
+ element->addCSSProperty(attr, CSSPropertyVerticalAlign, verticalAlignValue);
+}
+
+bool HTMLElement::supportsFocus() const
+{
+ return Element::supportsFocus() || (isContentEditable() && parent() && !parent()->isContentEditable());
+}
+
+bool HTMLElement::isContentEditable() const
+{
+ if (document()->frame() && document()->frame()->isContentEditable())
+ return true;
+
+ // FIXME: this is a terrible thing to do here:
+ // https://bugs.webkit.org/show_bug.cgi?id=21834
+ document()->updateStyleIfNeeded();
+
+ if (!renderer()) {
+ if (parentNode())
+ return parentNode()->isContentEditable();
+ else
+ return false;
+ }
+
+ return renderer()->style()->userModify() == READ_WRITE || renderer()->style()->userModify() == READ_WRITE_PLAINTEXT_ONLY;
+}
+
+bool HTMLElement::isContentRichlyEditable() const
+{
+ if (document()->frame() && document()->frame()->isContentEditable())
+ return true;
+
+ document()->updateStyleIfNeeded();
+
+ if (!renderer()) {
+ if (parentNode())
+ return parentNode()->isContentEditable();
+ else
+ return false;
+ }
+
+ return renderer()->style()->userModify() == READ_WRITE;
+}
+
+String HTMLElement::contentEditable() const
+{
+ document()->updateStyleIfNeeded();
+
+ if (!renderer())
+ return "false";
+
+ switch (renderer()->style()->userModify()) {
+ case READ_WRITE:
+ return "true";
+ case READ_ONLY:
+ return "false";
+ case READ_WRITE_PLAINTEXT_ONLY:
+ return "plaintext-only";
+ default:
+ return "inherit";
+ }
+}
+
+void HTMLElement::setContentEditable(Attribute* attr)
+{
+ const AtomicString& enabled = attr->value();
+ if (enabled.isEmpty() || equalIgnoringCase(enabled, "true")) {
+ addCSSProperty(attr, CSSPropertyWebkitUserModify, CSSValueReadWrite);
+ addCSSProperty(attr, CSSPropertyWordWrap, CSSValueBreakWord);
+ addCSSProperty(attr, CSSPropertyWebkitNbspMode, CSSValueSpace);
+ addCSSProperty(attr, CSSPropertyWebkitLineBreak, CSSValueAfterWhiteSpace);
+ } else if (equalIgnoringCase(enabled, "false")) {
+ addCSSProperty(attr, CSSPropertyWebkitUserModify, CSSValueReadOnly);
+ attr->decl()->removeProperty(CSSPropertyWordWrap, false);
+ attr->decl()->removeProperty(CSSPropertyWebkitNbspMode, false);
+ attr->decl()->removeProperty(CSSPropertyWebkitLineBreak, false);
+ } else if (equalIgnoringCase(enabled, "inherit")) {
+ addCSSProperty(attr, CSSPropertyWebkitUserModify, CSSValueInherit);
+ attr->decl()->removeProperty(CSSPropertyWordWrap, false);
+ attr->decl()->removeProperty(CSSPropertyWebkitNbspMode, false);
+ attr->decl()->removeProperty(CSSPropertyWebkitLineBreak, false);
+ } else if (equalIgnoringCase(enabled, "plaintext-only")) {
+ addCSSProperty(attr, CSSPropertyWebkitUserModify, CSSValueReadWritePlaintextOnly);
+ addCSSProperty(attr, CSSPropertyWordWrap, CSSValueBreakWord);
+ addCSSProperty(attr, CSSPropertyWebkitNbspMode, CSSValueSpace);
+ addCSSProperty(attr, CSSPropertyWebkitLineBreak, CSSValueAfterWhiteSpace);
+ }
+}
+
+void HTMLElement::setContentEditable(const String &enabled)
+{
+ if (enabled == "inherit") {
+ ExceptionCode ec;
+ removeAttribute(contenteditableAttr, ec);
+ }
+ else
+ setAttribute(contenteditableAttr, enabled.isEmpty() ? "true" : enabled);
+}
+
+bool HTMLElement::draggable() const
+{
+ return equalIgnoringCase(getAttribute(draggableAttr), "true");
+}
+
+void HTMLElement::setDraggable(bool value)
+{
+ setAttribute(draggableAttr, value ? "true" : "false");
+}
+
+void HTMLElement::click()
+{
+ dispatchSimulatedClick(0, false, false);
+}
+
+// accessKeyAction is used by the accessibility support code
+// to send events to elements that our JavaScript caller does
+// does not. The elements JS is interested in have subclasses
+// that override this method to direct the click appropriately.
+// Here in the base class, then, we only send the click if
+// the caller wants it to go to any HTMLElement, and we say
+// to send the mouse events in addition to the click.
+void HTMLElement::accessKeyAction(bool sendToAnyElement)
+{
+ if (sendToAnyElement)
+ dispatchSimulatedClick(0, true);
+}
+
+String HTMLElement::title() const
+{
+ return getAttribute(titleAttr);
+}
+
+short HTMLElement::tabIndex() const
+{
+ if (supportsFocus())
+ return Element::tabIndex();
+ return -1;
+}
+
+void HTMLElement::setTabIndex(int value)
+{
+ setAttribute(tabindexAttr, String::number(value));
+}
+
+PassRefPtr<HTMLCollection> HTMLElement::children()
+{
+ return HTMLCollection::create(this, NodeChildren);
+}
+
+// DOM Section 1.1.1
+bool HTMLElement::childAllowed(Node *newChild)
+{
+ if (!Element::childAllowed(newChild))
+ return false;
+
+ // For XML documents, we are non-validating and do not check against a DTD, even for HTML elements.
+ if (!document()->isHTMLDocument())
+ return true;
+
+ // Future-proof for XML content inside HTML documents (we may allow this some day).
+ if (newChild->isElementNode() && !newChild->isHTMLElement())
+ return true;
+
+ // Elements with forbidden tag status can never have children
+ if (endTagRequirement() == TagStatusForbidden)
+ return false;
+
+ // Comment nodes are always allowed.
+ if (newChild->isCommentNode())
+ return true;
+
+ // Now call checkDTD.
+ return checkDTD(newChild);
+}
+
+// DTD Stuff
+// This unfortunate function is only needed when checking against the DTD. Other languages (like SVG) won't need this.
+bool HTMLElement::isRecognizedTagName(const QualifiedName& tagName)
+{
+ DEFINE_STATIC_LOCAL(HashSet<AtomicStringImpl*>, tagList, ());
+ if (tagList.isEmpty()) {
+ size_t tagCount = 0;
+ WebCore::QualifiedName** tags = HTMLNames::getHTMLTags(&tagCount);
+ for (size_t i = 0; i < tagCount; i++)
+ tagList.add(tags[i]->localName().impl());
+ }
+ return tagList.contains(tagName.localName().impl());
+}
+
+// The terms inline and block are used here loosely. Don't make the mistake of assuming all inlines or all blocks
+// need to be in these two lists.
+static HashSet<AtomicStringImpl*>* inlineTagList()
+{
+ DEFINE_STATIC_LOCAL(HashSet<AtomicStringImpl*>, tagList, ());
+ if (tagList.isEmpty()) {
+ tagList.add(ttTag.localName().impl());
+ tagList.add(iTag.localName().impl());
+ tagList.add(bTag.localName().impl());
+ tagList.add(uTag.localName().impl());
+ tagList.add(sTag.localName().impl());
+ tagList.add(strikeTag.localName().impl());
+ tagList.add(bigTag.localName().impl());
+ tagList.add(smallTag.localName().impl());
+ tagList.add(emTag.localName().impl());
+ tagList.add(strongTag.localName().impl());
+ tagList.add(dfnTag.localName().impl());
+ tagList.add(codeTag.localName().impl());
+ tagList.add(sampTag.localName().impl());
+ tagList.add(kbdTag.localName().impl());
+ tagList.add(varTag.localName().impl());
+ tagList.add(citeTag.localName().impl());
+ tagList.add(abbrTag.localName().impl());
+ tagList.add(acronymTag.localName().impl());
+ tagList.add(aTag.localName().impl());
+ tagList.add(canvasTag.localName().impl());
+ tagList.add(imgTag.localName().impl());
+ tagList.add(appletTag.localName().impl());
+ tagList.add(objectTag.localName().impl());
+ tagList.add(embedTag.localName().impl());
+ tagList.add(fontTag.localName().impl());
+ tagList.add(basefontTag.localName().impl());
+ tagList.add(brTag.localName().impl());
+ tagList.add(scriptTag.localName().impl());
+ tagList.add(styleTag.localName().impl());
+ tagList.add(linkTag.localName().impl());
+ tagList.add(mapTag.localName().impl());
+ tagList.add(qTag.localName().impl());
+ tagList.add(subTag.localName().impl());
+ tagList.add(supTag.localName().impl());
+ tagList.add(spanTag.localName().impl());
+ tagList.add(bdoTag.localName().impl());
+ tagList.add(iframeTag.localName().impl());
+ tagList.add(inputTag.localName().impl());
+ tagList.add(keygenTag.localName().impl());
+ tagList.add(selectTag.localName().impl());
+ tagList.add(datagridTag.localName().impl());
+ tagList.add(textareaTag.localName().impl());
+ tagList.add(labelTag.localName().impl());
+ tagList.add(buttonTag.localName().impl());
+ tagList.add(datalistTag.localName().impl());
+ tagList.add(insTag.localName().impl());
+ tagList.add(delTag.localName().impl());
+ tagList.add(nobrTag.localName().impl());
+ tagList.add(wbrTag.localName().impl());
+#if ENABLE(VIDEO)
+ tagList.add(audioTag.localName().impl());
+ tagList.add(videoTag.localName().impl());
+#endif
+ tagList.add(rpTag.localName().impl());
+ tagList.add(rtTag.localName().impl());
+ tagList.add(rubyTag.localName().impl());
+ tagList.add(progressTag.localName().impl());
+ tagList.add(meterTag.localName().impl());
+ tagList.add(markTag.localName().impl());
+ }
+ return &tagList;
+}
+
+static HashSet<AtomicStringImpl*>* blockTagList()
+{
+ DEFINE_STATIC_LOCAL(HashSet<AtomicStringImpl*>, tagList, ());
+ if (tagList.isEmpty()) {
+ tagList.add(addressTag.localName().impl());
+ tagList.add(articleTag.localName().impl());
+ tagList.add(asideTag.localName().impl());
+ tagList.add(blockquoteTag.localName().impl());
+ tagList.add(centerTag.localName().impl());
+ tagList.add(ddTag.localName().impl());
+ tagList.add(dirTag.localName().impl());
+ tagList.add(divTag.localName().impl());
+ tagList.add(dlTag.localName().impl());
+ tagList.add(dtTag.localName().impl());
+ tagList.add(fieldsetTag.localName().impl());
+ tagList.add(footerTag.localName().impl());
+ tagList.add(formTag.localName().impl());
+ tagList.add(h1Tag.localName().impl());
+ tagList.add(h2Tag.localName().impl());
+ tagList.add(h3Tag.localName().impl());
+ tagList.add(h4Tag.localName().impl());
+ tagList.add(h5Tag.localName().impl());
+ tagList.add(h6Tag.localName().impl());
+ tagList.add(headerTag.localName().impl());
+ tagList.add(hgroupTag.localName().impl());
+ tagList.add(hrTag.localName().impl());
+ tagList.add(isindexTag.localName().impl());
+ tagList.add(layerTag.localName().impl());
+ tagList.add(liTag.localName().impl());
+ tagList.add(listingTag.localName().impl());
+ tagList.add(marqueeTag.localName().impl());
+ tagList.add(menuTag.localName().impl());
+ tagList.add(navTag.localName().impl());
+ tagList.add(noembedTag.localName().impl());
+ tagList.add(noframesTag.localName().impl());
+ tagList.add(nolayerTag.localName().impl());
+ tagList.add(noscriptTag.localName().impl());
+ tagList.add(olTag.localName().impl());
+ tagList.add(pTag.localName().impl());
+ tagList.add(plaintextTag.localName().impl());
+ tagList.add(preTag.localName().impl());
+ tagList.add(sectionTag.localName().impl());
+ tagList.add(tableTag.localName().impl());
+ tagList.add(ulTag.localName().impl());
+ tagList.add(xmpTag.localName().impl());
+ }
+ return &tagList;
+}
+
+bool HTMLElement::inEitherTagList(const Node* newChild)
+{
+ if (newChild->isTextNode())
+ return true;
+
+ if (newChild->isHTMLElement()) {
+ const HTMLElement* child = static_cast<const HTMLElement*>(newChild);
+ if (inlineTagList()->contains(child->tagQName().localName().impl())) {
+#if PLATFORM(MAC)
+ if (child->tagQName().localName() == styleTag) {
+ // Leopard Mail doesn't expect <style> to be in the body of the document, so don't allow it in that case.
+ // See <rdar://problem/6621310>
+ Settings* settings = newChild->document() ? newChild->document()->settings() : 0;
+ if (settings && settings->needsLeopardMailQuirks())
+ return false;
+ }
+#endif
+ return true;
+ }
+ if (blockTagList()->contains(child->tagQName().localName().impl()))
+ return true;
+ return !isRecognizedTagName(child->tagQName()); // Accept custom html tags
+ }
+
+ return false;
+}
+
+bool HTMLElement::inInlineTagList(const Node* newChild)
+{
+ if (newChild->isTextNode())
+ return true;
+
+ if (newChild->isHTMLElement()) {
+ const HTMLElement* child = static_cast<const HTMLElement*>(newChild);
+ if (inlineTagList()->contains(child->tagQName().localName().impl()))
+ return true;
+ return !isRecognizedTagName(child->tagQName()); // Accept custom html tags
+ }
+
+ return false;
+}
+
+bool HTMLElement::inBlockTagList(const Node* newChild)
+{
+ if (newChild->isTextNode())
+ return true;
+
+ if (newChild->isHTMLElement()) {
+ const HTMLElement* child = static_cast<const HTMLElement*>(newChild);
+ return (blockTagList()->contains(child->tagQName().localName().impl()));
+ }
+
+ return false;
+}
+
+bool HTMLElement::checkDTD(const Node* newChild)
+{
+ if (hasLocalName(addressTag) && newChild->hasTagName(pTag))
+ return true;
+ return inEitherTagList(newChild);
+}
+
+bool HTMLElement::rendererIsNeeded(RenderStyle *style)
+{
+#if !ENABLE(XHTMLMP)
+ if (hasLocalName(noscriptTag)) {
+ Frame* frame = document()->frame();
+ if (frame && frame->script()->canExecuteScripts(NotAboutToExecuteScript))
+ return false;
+ }
+#endif
+ return StyledElement::rendererIsNeeded(style);
+}
+
+RenderObject* HTMLElement::createRenderer(RenderArena* arena, RenderStyle* style)
+{
+ if (hasLocalName(wbrTag))
+ return new (arena) RenderWordBreak(this);
+ return RenderObject::createObject(this, style);
+}
+
+HTMLFormElement* HTMLElement::findFormAncestor() const
+{
+ for (Node* ancestor = parentNode(); ancestor; ancestor = ancestor->parentNode())
+ if (ancestor->hasTagName(formTag))
+ return static_cast<HTMLFormElement*>(ancestor);
+ return 0;
+}
+
+HTMLFormElement* HTMLElement::virtualForm() const
+{
+ return findFormAncestor();
+}
+
+} // namespace WebCore
+
+#ifndef NDEBUG
+
+// For use in the debugger
+void dumpInnerHTML(WebCore::HTMLElement*);
+
+void dumpInnerHTML(WebCore::HTMLElement* element)
+{
+ printf("%s\n", element->innerHTML().ascii().data());
+}
+#endif