| /* |
| * 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 "HTMLParserIdioms.h" |
| #include "RenderWordBreak.h" |
| #include "ScriptEventListener.h" |
| #include "Settings.h" |
| #include "Text.h" |
| #include "TextIterator.h" |
| #include "markup.h" |
| #include <wtf/StdLibExtras.h> |
| #include <wtf/text/CString.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(); |
| } |
| |
| bool HTMLElement::ieForbidsInsertHTML() const |
| { |
| // FIXME: Supposedly IE disallows settting innerHTML, outerHTML |
| // and createContextualFragment on these tags. We have no tests to |
| // verify this however, so this list could be totally wrong. |
| // This list was moved from the previous endTagRequirement() implementation. |
| // This is also called from editing and assumed to be the list of tags |
| // for which no end tag should be serialized. It's unclear if the list for |
| // IE compat and the list for serialization sanity are the same. |
| if (hasLocalName(areaTag) |
| || hasLocalName(baseTag) |
| || hasLocalName(basefontTag) |
| || hasLocalName(brTag) |
| || hasLocalName(colTag) |
| #if ENABLE(DATAGRID) |
| || hasLocalName(dcellTag) |
| || hasLocalName(dcolTag) |
| #endif |
| || hasLocalName(embedTag) |
| || hasLocalName(frameTag) |
| || hasLocalName(hrTag) |
| || hasLocalName(imageTag) |
| || hasLocalName(imgTag) |
| || hasLocalName(inputTag) |
| || hasLocalName(isindexTag) |
| || hasLocalName(linkTag) |
| || hasLocalName(metaTag) |
| || hasLocalName(paramTag) |
| || hasLocalName(sourceTag) |
| || hasLocalName(wbrTag)) |
| return true; |
| // FIXME: I'm not sure why dashboard mode would want to change the |
| // serialization of <canvas>, that seems like a bad idea. |
| #if ENABLE(DASHBOARD_SUPPORT) |
| if (hasLocalName(canvasTag)) { |
| Settings* settings = document()->settings(); |
| if (settings && settings->usesDashboardBackwardCompatibilityMode()) |
| return true; |
| } |
| #endif |
| return false; |
| } |
| |
| bool HTMLElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const |
| { |
| if (attrName == alignAttr |
| || attrName == contenteditableAttr |
| || attrName == hiddenAttr) { |
| result = eUniversal; |
| return false; |
| } |
| if (attrName == dirAttr) { |
| result = hasLocalName(bdoTag) ? eBDO : eUniversal; |
| return true; |
| } |
| |
| 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() == hiddenAttr) { |
| addCSSProperty(attr, CSSPropertyDisplay, CSSValueNone); |
| } else if (attr->name() == tabindexAttr) { |
| indexstring = getAttribute(tabindexAttr); |
| int tabindex = 0; |
| if (!indexstring.length()) { |
| clearTabIndexExplicitly(); |
| } else if (parseHTMLInteger(indexstring, tabindex)) { |
| // 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) { |
| if (!equalIgnoringCase(attr->value(), "auto")) |
| addCSSProperty(attr, CSSPropertyDirection, attr->value()); |
| dirAttributeChanged(attr); |
| 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)); |
| #if ENABLE(FULLSCREEN_API) |
| } else if (attr->name() == onwebkitfullscreenchangeAttr) { |
| setAttributeEventListener(eventNames().webkitfullscreenchangeEvent, createAttributeEventListener(this, attr)); |
| #endif |
| } |
| } |
| |
| String HTMLElement::innerHTML() const |
| { |
| return createMarkup(this, ChildrenOnly); |
| } |
| |
| String HTMLElement::outerHTML() const |
| { |
| return createMarkup(this); |
| } |
| |
| // FIXME: This logic should move into Range::createContextualFragment |
| PassRefPtr<DocumentFragment> HTMLElement::deprecatedCreateContextualFragment(const String& markup, FragmentScriptingPermission scriptingPermission) |
| { |
| // The following is in accordance with the definition as used by IE. |
| if (ieForbidsInsertHTML()) |
| return 0; |
| |
| if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) |
| || hasLocalName(headTag) || hasLocalName(styleTag) || hasLocalName(titleTag)) |
| return 0; |
| |
| return Element::deprecatedCreateContextualFragment(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); |
| } |
| |
| // We may want to move a version of this function into DocumentFragment.h/cpp |
| static PassRefPtr<DocumentFragment> createFragmentFromSource(const String& markup, Element* contextElement, ExceptionCode& ec) |
| { |
| Document* document = contextElement->document(); |
| RefPtr<DocumentFragment> fragment; |
| |
| fragment = DocumentFragment::create(document); |
| if (document->isHTMLDocument()) { |
| fragment->parseHTML(markup, contextElement); |
| return fragment; |
| } |
| |
| bool wasValid = fragment->parseXML(markup, contextElement); |
| if (!wasValid) { |
| ec = INVALID_STATE_ERR; |
| return 0; |
| } |
| return fragment; |
| } |
| |
| void HTMLElement::setInnerHTML(const String& html, ExceptionCode& ec) |
| { |
| RefPtr<DocumentFragment> fragment = createFragmentFromSource(html, this, ec); |
| if (fragment) |
| replaceChildrenWithFragment(this, fragment.release(), ec); |
| } |
| |
| void HTMLElement::setOuterHTML(const String& html, ExceptionCode& ec) |
| { |
| Node* p = parentNode(); |
| if (!p || !p->isHTMLElement()) { |
| ec = NO_MODIFICATION_ALLOWED_ERR; |
| return; |
| } |
| HTMLElement* parent = toHTMLElement(p); |
| |
| RefPtr<DocumentFragment> fragment = createFragmentFromSource(html, parent, ec); |
| if (fragment) { |
| // FIXME: Why doesn't this have code to merge neighboring text nodes the way setOuterText does? |
| parent->replaceChild(fragment.release(), this, ec); |
| } |
| } |
| |
| PassRefPtr<DocumentFragment> HTMLElement::textToFragment(const String& text, ExceptionCode& ec) |
| { |
| RefPtr<DocumentFragment> fragment = DocumentFragment::create(document()); |
| unsigned int i, length = text.length(); |
| UChar c = 0; |
| for (unsigned int start = 0; start < length; ) { |
| |
| // Find next line break. |
| for (i = start; i < length; i++) { |
| c = text[i]; |
| if (c == '\r' || c == '\n') |
| break; |
| } |
| |
| fragment->appendChild(Text::create(document(), text.substring(start, i - start)), ec); |
| if (ec) |
| return 0; |
| |
| if (c == '\r' || c == '\n') { |
| fragment->appendChild(HTMLBRElement::create(document()), ec); |
| if (ec) |
| return 0; |
| // Make sure \r\n doesn't result in two line breaks. |
| if (c == '\r' && i + 1 < length && text[i + 1] == '\n') |
| i++; |
| } |
| |
| start = i + 1; // Character after line break. |
| } |
| |
| return fragment; |
| } |
| |
| void HTMLElement::setInnerText(const String& text, ExceptionCode& ec) |
| { |
| if (ieForbidsInsertHTML()) { |
| 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 = textToFragment(text, ec); |
| if (!ec) |
| replaceChildrenWithFragment(this, fragment.release(), ec); |
| } |
| |
| static void mergeWithNextTextNode(PassRefPtr<Node> node, ExceptionCode& ec) |
| { |
| ASSERT(node && node->isTextNode()); |
| Node* next = node->nextSibling(); |
| if (!next || !next->isTextNode()) |
| return; |
| |
| RefPtr<Text> textNode = static_cast<Text*>(node.get()); |
| RefPtr<Text> textNext = static_cast<Text*>(next); |
| textNode->appendData(textNext->data(), ec); |
| if (ec) |
| return; |
| if (textNext->parentNode()) // Might have been removed by mutation event. |
| textNext->remove(ec); |
| } |
| |
| void HTMLElement::setOuterText(const String &text, ExceptionCode& ec) |
| { |
| if (ieForbidsInsertHTML()) { |
| 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; |
| } |
| |
| ContainerNode* parent = parentNode(); |
| if (!parent) { |
| ec = NO_MODIFICATION_ALLOWED_ERR; |
| return; |
| } |
| |
| RefPtr<Node> prev = previousSibling(); |
| RefPtr<Node> next = nextSibling(); |
| RefPtr<Node> newChild; |
| ec = 0; |
| |
| // Convert text to fragment with <br> tags instead of linebreaks if needed. |
| if (text.contains('\r') || text.contains('\n')) |
| newChild = textToFragment(text, ec); |
| else |
| newChild = Text::create(document(), text); |
| |
| if (!this || !parentNode()) |
| ec = HIERARCHY_REQUEST_ERR; |
| if (ec) |
| return; |
| parent->replaceChild(newChild.release(), this, ec); |
| |
| RefPtr<Node> node = next ? next->previousSibling() : 0; |
| if (!ec && node && node->isTextNode()) |
| mergeWithNextTextNode(node.release(), ec); |
| |
| if (!ec && prev && prev->isTextNode()) |
| mergeWithNextTextNode(prev.release(), ec); |
| } |
| |
| 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")) { |
| ContainerNode* parent = this->parentNode(); |
| return (parent && parent->insertBefore(newChild, this, ec)) ? newChild : 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")) { |
| ContainerNode* parent = this->parentNode(); |
| return (parent && parent->insertBefore(newChild, nextSibling(), ec)) ? newChild : 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); |
| } |
| |
| // Step 3 of http://www.whatwg.org/specs/web-apps/current-work/multipage/apis-in-html-documents.html#insertadjacenthtml() |
| static Element* contextElementForInsertion(const String& where, Element* element, ExceptionCode& ec) |
| { |
| if (equalIgnoringCase(where, "beforeBegin") || equalIgnoringCase(where, "afterEnd")) { |
| ContainerNode* parent = element->parentNode(); |
| if (parent && !parent->isElementNode()) { |
| ec = NO_MODIFICATION_ALLOWED_ERR; |
| return 0; |
| } |
| ASSERT(!parent || parent->isElementNode()); |
| return static_cast<Element*>(parent); |
| } |
| if (equalIgnoringCase(where, "afterBegin") || equalIgnoringCase(where, "beforeEnd")) |
| return element; |
| ec = SYNTAX_ERR; |
| return 0; |
| } |
| |
| void HTMLElement::insertAdjacentHTML(const String& where, const String& markup, ExceptionCode& ec) |
| { |
| RefPtr<DocumentFragment> fragment = document()->createDocumentFragment(); |
| Element* contextElement = contextElementForInsertion(where, this, ec); |
| if (!contextElement) |
| return; |
| |
| if (document()->isHTMLDocument()) |
| fragment->parseHTML(markup, contextElement); |
| else { |
| if (!fragment->parseXML(markup, contextElement)) |
| // 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() || (rendererIsEditable() && parentNode() && !parentNode()->rendererIsEditable()); |
| } |
| |
| String HTMLElement::contentEditable() const |
| { |
| const AtomicString& value = fastGetAttribute(contenteditableAttr); |
| |
| if (value.isNull()) |
| return "inherit"; |
| if (value.isEmpty() || equalIgnoringCase(value, "true")) |
| return "true"; |
| if (equalIgnoringCase(value, "false")) |
| return "false"; |
| if (equalIgnoringCase(value, "plaintext-only")) |
| return "plaintext-only"; |
| |
| 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, "plaintext-only")) { |
| addCSSProperty(attr, CSSPropertyWebkitUserModify, CSSValueReadWritePlaintextOnly); |
| addCSSProperty(attr, CSSPropertyWordWrap, CSSValueBreakWord); |
| addCSSProperty(attr, CSSPropertyWebkitNbspMode, CSSValueSpace); |
| addCSSProperty(attr, CSSPropertyWebkitLineBreak, CSSValueAfterWhiteSpace); |
| } |
| } |
| |
| void HTMLElement::setContentEditable(const String& enabled, ExceptionCode& ec) |
| { |
| if (equalIgnoringCase(enabled, "true")) |
| setAttribute(contenteditableAttr, "true", ec); |
| else if (equalIgnoringCase(enabled, "false")) |
| setAttribute(contenteditableAttr, "false", ec); |
| else if (equalIgnoringCase(enabled, "plaintext-only")) |
| setAttribute(contenteditableAttr, "plaintext-only"); |
| else if (equalIgnoringCase(enabled, "inherit")) |
| removeAttribute(contenteditableAttr, ec); |
| else |
| ec = SYNTAX_ERR; |
| } |
| |
| bool HTMLElement::draggable() const |
| { |
| return equalIgnoringCase(getAttribute(draggableAttr), "true"); |
| } |
| |
| void HTMLElement::setDraggable(bool value) |
| { |
| setAttribute(draggableAttr, value ? "true" : "false"); |
| } |
| |
| bool HTMLElement::spellcheck() const |
| { |
| return isSpellCheckingEnabled(); |
| } |
| |
| void HTMLElement::setSpellcheck(bool enable) |
| { |
| setAttribute(spellcheckAttr, enable ? "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); |
| } |
| |
| bool HTMLElement::rendererIsNeeded(RenderStyle *style) |
| { |
| if (hasLocalName(noscriptTag)) { |
| Frame* frame = document()->frame(); |
| #if ENABLE(XHTMLMP) |
| if (!document()->shouldProcessNoscriptElement()) |
| return false; |
| #else |
| if (frame && frame->script()->canExecuteScripts(NotAboutToExecuteScript)) |
| return false; |
| #endif |
| } else if (hasLocalName(noembedTag)) { |
| Frame* frame = document()->frame(); |
| if (frame && frame->loader()->subframeLoader()->allowPlugins(NotAboutToInstantiatePlugin)) |
| return false; |
| } |
| 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 (ContainerNode* ancestor = parentNode(); ancestor; ancestor = ancestor->parentNode()) { |
| if (ancestor->hasTagName(formTag)) |
| return static_cast<HTMLFormElement*>(ancestor); |
| } |
| return 0; |
| } |
| |
| HTMLFormElement* HTMLElement::virtualForm() const |
| { |
| return findFormAncestor(); |
| } |
| |
| static void setHasDirAutoFlagRecursively(Node* firstNode, bool flag, Node* lastNode = 0) |
| { |
| firstNode->setSelfOrAncestorHasDirAutoAttribute(flag); |
| |
| Node* node = firstNode->firstChild(); |
| |
| while (node) { |
| if (node->selfOrAncestorHasDirAutoAttribute() == flag) |
| return; |
| |
| if (node->isHTMLElement() && toElement(node)->hasAttribute(dirAttr)) { |
| if (node == lastNode) |
| return; |
| node = node->traverseNextSibling(firstNode); |
| continue; |
| } |
| node->setSelfOrAncestorHasDirAutoAttribute(flag); |
| if (node == lastNode) |
| return; |
| node = node->traverseNextNode(firstNode); |
| } |
| } |
| |
| void HTMLElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) |
| { |
| StyledElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta); |
| adjustDirectionalityIfNeededAfterChildrenChanged(beforeChange, childCountDelta); |
| } |
| |
| TextDirection HTMLElement::directionalityIfhasDirAutoAttribute(bool& isAuto) const |
| { |
| if (!(selfOrAncestorHasDirAutoAttribute() && equalIgnoringCase(getAttribute(dirAttr), "auto"))) { |
| isAuto = false; |
| return LTR; |
| } |
| |
| isAuto = true; |
| return directionality(); |
| } |
| |
| TextDirection HTMLElement::directionality(Node** strongDirectionalityTextNode) const |
| { |
| Node* node = firstChild(); |
| while (node) { |
| // Skip bdi, script and style elements |
| if (equalIgnoringCase(node->nodeName(), "bdi") || node->hasTagName(scriptTag) || node->hasTagName(styleTag)) { |
| node = node->traverseNextSibling(this); |
| continue; |
| } |
| |
| // Skip elements with valid dir attribute |
| if (node->isElementNode()) { |
| AtomicString dirAttributeValue = toElement(node)->fastGetAttribute(dirAttr); |
| if (equalIgnoringCase(dirAttributeValue, "rtl") || equalIgnoringCase(dirAttributeValue, "ltr") || equalIgnoringCase(dirAttributeValue, "auto")) { |
| node = node->traverseNextSibling(this); |
| continue; |
| } |
| } |
| |
| if (node->isTextNode()) { |
| bool hasStrongDirectionality; |
| WTF::Unicode::Direction textDirection = node->textContent(true).defaultWritingDirection(&hasStrongDirectionality); |
| if (hasStrongDirectionality) { |
| if (strongDirectionalityTextNode) |
| *strongDirectionalityTextNode = node; |
| return (textDirection == WTF::Unicode::LeftToRight) ? LTR : RTL; |
| } |
| } |
| node = node->traverseNextNode(this); |
| } |
| if (strongDirectionalityTextNode) |
| *strongDirectionalityTextNode = 0; |
| return LTR; |
| } |
| |
| void HTMLElement::dirAttributeChanged(Attribute* attribute) |
| { |
| Element* parent = parentElement(); |
| |
| if (parent && parent->isHTMLElement() && parent->selfOrAncestorHasDirAutoAttribute()) |
| toHTMLElement(parent)->adjustDirectionalityIfNeededAfterChildAttributeChanged(this); |
| |
| if (equalIgnoringCase(attribute->value(), "auto")) |
| calculateAndAdjustDirectionality(); |
| } |
| |
| void HTMLElement::adjustDirectionalityIfNeededAfterChildAttributeChanged(Element* child) |
| { |
| ASSERT(selfOrAncestorHasDirAutoAttribute()); |
| Node* strongDirectionalityTextNode; |
| TextDirection textDirection = directionality(&strongDirectionalityTextNode); |
| setHasDirAutoFlagRecursively(child, false); |
| if (renderer() && renderer()->style() && renderer()->style()->direction() != textDirection) { |
| Element* elementToAdjust = this; |
| for (; elementToAdjust; elementToAdjust = elementToAdjust->parentElement()) { |
| if (elementToAdjust->hasAttribute(dirAttr)) { |
| elementToAdjust->setNeedsStyleRecalc(); |
| return; |
| } |
| } |
| } |
| } |
| |
| void HTMLElement::calculateAndAdjustDirectionality() |
| { |
| Node* strongDirectionalityTextNode; |
| TextDirection textDirection = directionality(&strongDirectionalityTextNode); |
| setHasDirAutoFlagRecursively(this, true, strongDirectionalityTextNode); |
| if (renderer() && renderer()->style() && renderer()->style()->direction() != textDirection) |
| setNeedsStyleRecalc(); |
| } |
| |
| void HTMLElement::adjustDirectionalityIfNeededAfterChildrenChanged(Node* beforeChange, int childCountDelta) |
| { |
| if ((!document() || document()->renderer()) && childCountDelta < 0) { |
| Node* node = beforeChange ? beforeChange->traverseNextSibling() : 0; |
| for (int counter = 0; node && counter < childCountDelta; counter++, node = node->traverseNextSibling()) { |
| if (node->isElementNode() && toElement(node)->hasAttribute(dirAttr)) |
| continue; |
| |
| setHasDirAutoFlagRecursively(node, false); |
| } |
| } |
| |
| if (!selfOrAncestorHasDirAutoAttribute()) |
| return; |
| |
| Node* oldMarkedNode = beforeChange ? beforeChange->traverseNextSibling() : 0; |
| while (oldMarkedNode && oldMarkedNode->isHTMLElement() && toHTMLElement(oldMarkedNode)->hasAttribute(dirAttr)) |
| oldMarkedNode = oldMarkedNode->traverseNextSibling(this); |
| if (oldMarkedNode) |
| setHasDirAutoFlagRecursively(oldMarkedNode, false); |
| |
| for (Element* elementToAdjust = this; elementToAdjust; elementToAdjust = elementToAdjust->parentElement()) { |
| if (elementToAdjust->isHTMLElement() && elementToAdjust->hasAttribute(dirAttr)) { |
| toHTMLElement(elementToAdjust)->calculateAndAdjustDirectionality(); |
| return; |
| } |
| } |
| } |
| |
| } // 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 |
