Source/WebCore/html/HTMLDocument.cpp - third_party/webkit - Git at Google

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  * Portions are Copyright (C) 2002 Netscape Communications Corporation.
  * Other contributors: David Baron <dbaron@fas.harvard.edu>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  * Alternatively, the document type parsing portions of this file may be used
  * under the terms of either the Mozilla Public License Version 1.1, found at
  * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
  * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
  * (the "GPL"), in which case the provisions of the MPL or the GPL are
  * applicable instead of those above.  If you wish to allow use of your
  * version of this file only under the terms of one of those two
  * licenses (the MPL or the GPL) and not to allow others to use your
  * version of this file under the LGPL, indicate your decision by
  * deleting the provisions above and replace them with the notice and
  * other provisions required by the MPL or the GPL, as the case may be.
  * If you do not delete the provisions above, a recipient may use your
  * version of this file under any of the LGPL, the MPL or the GPL.
  */

 #include "config.h"
 #include "HTMLDocument.h"

 #include "CSSPropertyNames.h"
 #include "CookieJar.h"
 #include "DocumentLoader.h"
 #include "DocumentType.h"
 #include "ElementChildIterator.h"
 #include "ExceptionCode.h"
 #include "FocusController.h"
 #include "Frame.h"
 #include "FrameLoader.h"
 #include "FrameTree.h"
 #include "FrameView.h"
 #include "HashTools.h"
 #include "HTMLDocumentParser.h"
 #include "HTMLBodyElement.h"
 #include "HTMLElementFactory.h"
 #include "HTMLFrameOwnerElement.h"
 #include "HTMLFrameSetElement.h"
 #include "HTMLHtmlElement.h"
 #include "HTMLNames.h"
 #include "JSDOMBinding.h"
 #include "Page.h"
 #include "ScriptController.h"
 #include "Settings.h"
 #include "StyleResolver.h"
 #include <wtf/text/CString.h>

 namespace WebCore {

 using namespace HTMLNames;

 HTMLDocument::HTMLDocument(Frame* frame, const URL& url, DocumentClassFlags documentClasses, unsigned constructionFlags)
     : Document(frame, url, documentClasses | HTMLDocumentClass, constructionFlags)
 {
     clearXMLVersion();
 }

 HTMLDocument::~HTMLDocument()
 {
 }

 int HTMLDocument::width()
 {
     updateLayoutIgnorePendingStylesheets();
     FrameView* frameView = view();
     return frameView ? frameView->contentsWidth() : 0;
 }

 int HTMLDocument::height()
 {
     updateLayoutIgnorePendingStylesheets();
     FrameView* frameView = view();
     return frameView ? frameView->contentsHeight() : 0;
 }

 const AtomicString& HTMLDocument::bgColor() const
 {
     auto* bodyElement = body();
     if (!bodyElement)
         return emptyAtom;
     return bodyElement->attributeWithoutSynchronization(bgcolorAttr);
 }

 void HTMLDocument::setBgColor(const String& value)
 {
     if (auto* bodyElement = body())
         bodyElement->setAttributeWithoutSynchronization(bgcolorAttr, value);
 }

 const AtomicString& HTMLDocument::fgColor() const
 {
     auto* bodyElement = body();
     if (!bodyElement)
         return emptyAtom;
     return bodyElement->attributeWithoutSynchronization(textAttr);
 }

 void HTMLDocument::setFgColor(const String& value)
 {
     if (auto* bodyElement = body())
         bodyElement->setAttributeWithoutSynchronization(textAttr, value);
 }

 const AtomicString& HTMLDocument::alinkColor() const
 {
     auto* bodyElement = body();
     if (!bodyElement)
         return emptyAtom;
     return bodyElement->attributeWithoutSynchronization(alinkAttr);
 }

 void HTMLDocument::setAlinkColor(const String& value)
 {
     if (auto* bodyElement = body())
         bodyElement->setAttributeWithoutSynchronization(alinkAttr, value);
 }

 const AtomicString& HTMLDocument::linkColor() const
 {
     auto* bodyElement = body();
     if (!bodyElement)
         return emptyAtom;
     return bodyElement->attributeWithoutSynchronization(linkAttr);
 }

 void HTMLDocument::setLinkColor(const String& value)
 {
     if (auto* bodyElement = body())
         bodyElement->setAttributeWithoutSynchronization(linkAttr, value);
 }

 const AtomicString& HTMLDocument::vlinkColor() const
 {
     auto* bodyElement = body();
     if (!bodyElement)
         return emptyAtom;
     return bodyElement->attributeWithoutSynchronization(vlinkAttr);
 }

 void HTMLDocument::setVlinkColor(const String& value)
 {
     if (auto* bodyElement = body())
         bodyElement->setAttributeWithoutSynchronization(vlinkAttr, value);
 }

 void HTMLDocument::captureEvents()
 {
 }

 void HTMLDocument::releaseEvents()
 {
 }

 Ref<DocumentParser> HTMLDocument::createParser()
 {
     return HTMLDocumentParser::create(*this);
 }

 // --------------------------------------------------------------------------
 // not part of the DOM
 // --------------------------------------------------------------------------

 static void addLocalNameToSet(HashSet<AtomicStringImpl*>* set, const QualifiedName& qName)
 {
     set->add(qName.localName().impl());
 }

 static HashSet<AtomicStringImpl*>* createHtmlCaseInsensitiveAttributesSet()
 {
     // This is the list of attributes in HTML 4.01 with values marked as "[CI]" or case-insensitive
     // Mozilla treats all other values as case-sensitive, thus so do we.
     HashSet<AtomicStringImpl*>* attrSet = new HashSet<AtomicStringImpl*>;

     addLocalNameToSet(attrSet, accept_charsetAttr);
     addLocalNameToSet(attrSet, acceptAttr);
     addLocalNameToSet(attrSet, alignAttr);
     addLocalNameToSet(attrSet, alinkAttr);
     addLocalNameToSet(attrSet, axisAttr);
     addLocalNameToSet(attrSet, bgcolorAttr);
     addLocalNameToSet(attrSet, charsetAttr);
     addLocalNameToSet(attrSet, checkedAttr);
     addLocalNameToSet(attrSet, clearAttr);
     addLocalNameToSet(attrSet, codetypeAttr);
     addLocalNameToSet(attrSet, colorAttr);
     addLocalNameToSet(attrSet, compactAttr);
     addLocalNameToSet(attrSet, declareAttr);
     addLocalNameToSet(attrSet, deferAttr);
     addLocalNameToSet(attrSet, dirAttr);
     addLocalNameToSet(attrSet, disabledAttr);
     addLocalNameToSet(attrSet, enctypeAttr);
     addLocalNameToSet(attrSet, faceAttr);
     addLocalNameToSet(attrSet, frameAttr);
     addLocalNameToSet(attrSet, hreflangAttr);
     addLocalNameToSet(attrSet, http_equivAttr);
     addLocalNameToSet(attrSet, langAttr);
     addLocalNameToSet(attrSet, languageAttr);
     addLocalNameToSet(attrSet, linkAttr);
     addLocalNameToSet(attrSet, mediaAttr);
     addLocalNameToSet(attrSet, methodAttr);
     addLocalNameToSet(attrSet, multipleAttr);
     addLocalNameToSet(attrSet, nohrefAttr);
     addLocalNameToSet(attrSet, noresizeAttr);
     addLocalNameToSet(attrSet, noshadeAttr);
     addLocalNameToSet(attrSet, nowrapAttr);
     addLocalNameToSet(attrSet, readonlyAttr);
     addLocalNameToSet(attrSet, relAttr);
     addLocalNameToSet(attrSet, revAttr);
     addLocalNameToSet(attrSet, rulesAttr);
     addLocalNameToSet(attrSet, scopeAttr);
     addLocalNameToSet(attrSet, scrollingAttr);
     addLocalNameToSet(attrSet, selectedAttr);
     addLocalNameToSet(attrSet, shapeAttr);
     addLocalNameToSet(attrSet, targetAttr);
     addLocalNameToSet(attrSet, textAttr);
     addLocalNameToSet(attrSet, typeAttr);
     addLocalNameToSet(attrSet, valignAttr);
     addLocalNameToSet(attrSet, valuetypeAttr);
     addLocalNameToSet(attrSet, vlinkAttr);

     return attrSet;
 }

 void HTMLDocument::addDocumentNamedItem(const AtomicStringImpl& name, Element& item)
 {
     m_documentNamedItem.add(name, item, *this);
     addImpureProperty(AtomicString(const_cast<AtomicStringImpl*>(&name)));
 }

 void HTMLDocument::removeDocumentNamedItem(const AtomicStringImpl& name, Element& item)
 {
     m_documentNamedItem.remove(name, item);
 }

 void HTMLDocument::addWindowNamedItem(const AtomicStringImpl& name, Element& item)
 {
     m_windowNamedItem.add(name, item, *this);
 }

 void HTMLDocument::removeWindowNamedItem(const AtomicStringImpl& name, Element& item)
 {
     m_windowNamedItem.remove(name, item);
 }

 bool HTMLDocument::isCaseSensitiveAttribute(const QualifiedName& attributeName)
 {
     static HashSet<AtomicStringImpl*>* htmlCaseInsensitiveAttributesSet = createHtmlCaseInsensitiveAttributesSet();
     bool isPossibleHTMLAttr = !attributeName.hasPrefix() && (attributeName.namespaceURI() == nullAtom);
     return !isPossibleHTMLAttr || !htmlCaseInsensitiveAttributesSet->contains(attributeName.localName().impl());
 }

 void HTMLDocument::clear()
 {
     // FIXME: This does nothing, and that seems unlikely to be correct.
     // We've long had a comment saying that IE doesn't support this.
     // But I do see it in the documentation for Mozilla.
 }

 bool HTMLDocument::isFrameSet() const
 {
     if (!documentElement())
         return false;
     return !!childrenOfType<HTMLFrameSetElement>(*documentElement()).first();
 }

 Ref<Document> HTMLDocument::cloneDocumentWithoutChildren() const
 {
     return create(nullptr, url());
 }

 }
	/*
	* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
	* (C) 1999 Antti Koivisto (koivisto@kde.org)
	* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public License
	* along with this library; see the file COPYING.LIB. If not, write to
	* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*
	* Portions are Copyright (C) 2002 Netscape Communications Corporation.
	* Other contributors: David Baron <dbaron@fas.harvard.edu>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 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
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*
	* Alternatively, the document type parsing portions of this file may be used
	* under the terms of either the Mozilla Public License Version 1.1, found at
	* http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
	* License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
	* (the "GPL"), in which case the provisions of the MPL or the GPL are
	* applicable instead of those above. If you wish to allow use of your
	* version of this file only under the terms of one of those two
	* licenses (the MPL or the GPL) and not to allow others to use your
	* version of this file under the LGPL, indicate your decision by
	* deleting the provisions above and replace them with the notice and
	* other provisions required by the MPL or the GPL, as the case may be.
	* If you do not delete the provisions above, a recipient may use your
	* version of this file under any of the LGPL, the MPL or the GPL.
	*/

	#include "config.h"
	#include "HTMLDocument.h"

	#include "CSSPropertyNames.h"
	#include "CookieJar.h"
	#include "DocumentLoader.h"
	#include "DocumentType.h"
	#include "ElementChildIterator.h"
	#include "ExceptionCode.h"
	#include "FocusController.h"
	#include "Frame.h"
	#include "FrameLoader.h"
	#include "FrameTree.h"
	#include "FrameView.h"
	#include "HashTools.h"
	#include "HTMLDocumentParser.h"
	#include "HTMLBodyElement.h"
	#include "HTMLElementFactory.h"
	#include "HTMLFrameOwnerElement.h"
	#include "HTMLFrameSetElement.h"
	#include "HTMLHtmlElement.h"
	#include "HTMLNames.h"
	#include "JSDOMBinding.h"
	#include "Page.h"
	#include "ScriptController.h"
	#include "Settings.h"
	#include "StyleResolver.h"
	#include <wtf/text/CString.h>

	namespace WebCore {

	using namespace HTMLNames;

	HTMLDocument::HTMLDocument(Frame* frame, const URL& url, DocumentClassFlags documentClasses, unsigned constructionFlags)
	: Document(frame, url, documentClasses \| HTMLDocumentClass, constructionFlags)
	{
	clearXMLVersion();
	}

	HTMLDocument::~HTMLDocument()
	{
	}

	int HTMLDocument::width()
	{
	updateLayoutIgnorePendingStylesheets();
	FrameView* frameView = view();
	return frameView ? frameView->contentsWidth() : 0;
	}

	int HTMLDocument::height()
	{
	updateLayoutIgnorePendingStylesheets();
	FrameView* frameView = view();
	return frameView ? frameView->contentsHeight() : 0;
	}

	const AtomicString& HTMLDocument::bgColor() const
	{
	auto* bodyElement = body();
	if (!bodyElement)
	return emptyAtom;
	return bodyElement->attributeWithoutSynchronization(bgcolorAttr);
	}

	void HTMLDocument::setBgColor(const String& value)
	{
	if (auto* bodyElement = body())
	bodyElement->setAttributeWithoutSynchronization(bgcolorAttr, value);
	}

	const AtomicString& HTMLDocument::fgColor() const
	{
	auto* bodyElement = body();
	if (!bodyElement)
	return emptyAtom;
	return bodyElement->attributeWithoutSynchronization(textAttr);
	}

	void HTMLDocument::setFgColor(const String& value)
	{
	if (auto* bodyElement = body())
	bodyElement->setAttributeWithoutSynchronization(textAttr, value);
	}

	const AtomicString& HTMLDocument::alinkColor() const
	{
	auto* bodyElement = body();
	if (!bodyElement)
	return emptyAtom;
	return bodyElement->attributeWithoutSynchronization(alinkAttr);
	}

	void HTMLDocument::setAlinkColor(const String& value)
	{
	if (auto* bodyElement = body())
	bodyElement->setAttributeWithoutSynchronization(alinkAttr, value);
	}

	const AtomicString& HTMLDocument::linkColor() const
	{
	auto* bodyElement = body();
	if (!bodyElement)
	return emptyAtom;
	return bodyElement->attributeWithoutSynchronization(linkAttr);
	}

	void HTMLDocument::setLinkColor(const String& value)
	{
	if (auto* bodyElement = body())
	bodyElement->setAttributeWithoutSynchronization(linkAttr, value);
	}

	const AtomicString& HTMLDocument::vlinkColor() const
	{
	auto* bodyElement = body();
	if (!bodyElement)
	return emptyAtom;
	return bodyElement->attributeWithoutSynchronization(vlinkAttr);
	}

	void HTMLDocument::setVlinkColor(const String& value)
	{
	if (auto* bodyElement = body())
	bodyElement->setAttributeWithoutSynchronization(vlinkAttr, value);
	}

	void HTMLDocument::captureEvents()
	{
	}

	void HTMLDocument::releaseEvents()
	{
	}

	Ref<DocumentParser> HTMLDocument::createParser()
	{
	return HTMLDocumentParser::create(*this);
	}

	// --------------------------------------------------------------------------
	// not part of the DOM
	// --------------------------------------------------------------------------

	static void addLocalNameToSet(HashSet<AtomicStringImpl> set, const QualifiedName& qName)
	{
	set->add(qName.localName().impl());
	}

	static HashSet<AtomicStringImpl> createHtmlCaseInsensitiveAttributesSet()
	{
	// This is the list of attributes in HTML 4.01 with values marked as "[CI]" or case-insensitive
	// Mozilla treats all other values as case-sensitive, thus so do we.
	HashSet<AtomicStringImpl> attrSet = new HashSet<AtomicStringImpl*>;

	addLocalNameToSet(attrSet, accept_charsetAttr);
	addLocalNameToSet(attrSet, acceptAttr);
	addLocalNameToSet(attrSet, alignAttr);
	addLocalNameToSet(attrSet, alinkAttr);
	addLocalNameToSet(attrSet, axisAttr);
	addLocalNameToSet(attrSet, bgcolorAttr);
	addLocalNameToSet(attrSet, charsetAttr);
	addLocalNameToSet(attrSet, checkedAttr);
	addLocalNameToSet(attrSet, clearAttr);
	addLocalNameToSet(attrSet, codetypeAttr);
	addLocalNameToSet(attrSet, colorAttr);
	addLocalNameToSet(attrSet, compactAttr);
	addLocalNameToSet(attrSet, declareAttr);
	addLocalNameToSet(attrSet, deferAttr);
	addLocalNameToSet(attrSet, dirAttr);
	addLocalNameToSet(attrSet, disabledAttr);
	addLocalNameToSet(attrSet, enctypeAttr);
	addLocalNameToSet(attrSet, faceAttr);
	addLocalNameToSet(attrSet, frameAttr);
	addLocalNameToSet(attrSet, hreflangAttr);
	addLocalNameToSet(attrSet, http_equivAttr);
	addLocalNameToSet(attrSet, langAttr);
	addLocalNameToSet(attrSet, languageAttr);
	addLocalNameToSet(attrSet, linkAttr);
	addLocalNameToSet(attrSet, mediaAttr);
	addLocalNameToSet(attrSet, methodAttr);
	addLocalNameToSet(attrSet, multipleAttr);
	addLocalNameToSet(attrSet, nohrefAttr);
	addLocalNameToSet(attrSet, noresizeAttr);
	addLocalNameToSet(attrSet, noshadeAttr);
	addLocalNameToSet(attrSet, nowrapAttr);
	addLocalNameToSet(attrSet, readonlyAttr);
	addLocalNameToSet(attrSet, relAttr);
	addLocalNameToSet(attrSet, revAttr);
	addLocalNameToSet(attrSet, rulesAttr);
	addLocalNameToSet(attrSet, scopeAttr);
	addLocalNameToSet(attrSet, scrollingAttr);
	addLocalNameToSet(attrSet, selectedAttr);
	addLocalNameToSet(attrSet, shapeAttr);
	addLocalNameToSet(attrSet, targetAttr);
	addLocalNameToSet(attrSet, textAttr);
	addLocalNameToSet(attrSet, typeAttr);
	addLocalNameToSet(attrSet, valignAttr);
	addLocalNameToSet(attrSet, valuetypeAttr);
	addLocalNameToSet(attrSet, vlinkAttr);

	return attrSet;
	}

	void HTMLDocument::addDocumentNamedItem(const AtomicStringImpl& name, Element& item)
	{
	m_documentNamedItem.add(name, item, *this);
	addImpureProperty(AtomicString(const_cast<AtomicStringImpl*>(&name)));
	}

	void HTMLDocument::removeDocumentNamedItem(const AtomicStringImpl& name, Element& item)
	{
	m_documentNamedItem.remove(name, item);
	}

	void HTMLDocument::addWindowNamedItem(const AtomicStringImpl& name, Element& item)
	{
	m_windowNamedItem.add(name, item, *this);
	}

	void HTMLDocument::removeWindowNamedItem(const AtomicStringImpl& name, Element& item)
	{
	m_windowNamedItem.remove(name, item);
	}

	bool HTMLDocument::isCaseSensitiveAttribute(const QualifiedName& attributeName)
	{
	static HashSet<AtomicStringImpl> htmlCaseInsensitiveAttributesSet = createHtmlCaseInsensitiveAttributesSet();
	bool isPossibleHTMLAttr = !attributeName.hasPrefix() && (attributeName.namespaceURI() == nullAtom);
	return !isPossibleHTMLAttr \|\| !htmlCaseInsensitiveAttributesSet->contains(attributeName.localName().impl());
	}

	void HTMLDocument::clear()
	{
	// FIXME: This does nothing, and that seems unlikely to be correct.
	// We've long had a comment saying that IE doesn't support this.
	// But I do see it in the documentation for Mozilla.
	}

	bool HTMLDocument::isFrameSet() const
	{
	if (!documentElement())
	return false;
	return !!childrenOfType<HTMLFrameSetElement>(*documentElement()).first();
	}

	Ref<Document> HTMLDocument::cloneDocumentWithoutChildren() const
	{
	return create(nullptr, url());
	}

	}