diff -r 000000000000 -r 4f2f89ce4247 WebCore/html/HTMLElement.cpp --- /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 + +namespace WebCore { + +using namespace HTMLNames; + +using std::min; +using std::max; + +PassRefPtr 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 . This way custom tag name elements will behave like inline spans. + return TagStatusRequired; +} + +struct Empty1IntHashTraits : HashTraits { + static const bool emptyValueIsZero = false; + static int emptyValue() { return 1; } +}; +typedef HashMap::Hash, HashTraits, 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
'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 . + // 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(std::numeric_limits::min()), min(tabindex, static_cast(std::numeric_limits::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 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 fragment, ExceptionCode& ec) +{ + if (!fragment->firstChild()) { + element->removeChildren(); + return; + } + + if (hasOneTextChild(element) && hasOneTextChild(fragment.get())) { + static_cast(element->firstChild())->setData(static_cast(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(element->firstChild())->setData(text, ec); + return; + } + + RefPtr 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 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(p); + RefPtr 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
elements. + ec = 0; + RefPtr 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
elements. + RefPtr 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(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(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(returnValue); +} + +void HTMLElement::insertAdjacentHTML(const String& where, const String& markup, ExceptionCode& ec) +{ + RefPtr 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 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 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, 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* inlineTagList() +{ + DEFINE_STATIC_LOCAL(HashSet, 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* blockTagList() +{ + DEFINE_STATIC_LOCAL(HashSet, 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(newChild); + if (inlineTagList()->contains(child->tagQName().localName().impl())) { +#if PLATFORM(MAC) + if (child->tagQName().localName() == styleTag) { + // Leopard Mail doesn't expect