481 lines
16 KiB
C++
481 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIDOMHTMLParamElement.h"
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#include "nsIDOMHTMLBaseElement.h"
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#include "nsIDOMHTMLDirectoryElement.h"
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#include "nsIDOMHTMLQuoteElement.h"
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#include "nsIDOMHTMLHeadElement.h"
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#include "nsIDOMHTMLHtmlElement.h"
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#include "nsGenericHTMLElement.h"
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#include "nsGkAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsRuleData.h"
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#include "nsMappedAttributes.h"
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#include "nsNetUtil.h"
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#include "nsHTMLFormElement.h"
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#include "nsHtml5Module.h"
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// XXX nav4 has type= start= (same as OL/UL)
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extern nsAttrValue::EnumTable kListTypeTable[];
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class nsHTMLSharedElement : public nsGenericHTMLElement,
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public nsIDOMHTMLParamElement,
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public nsIDOMHTMLBaseElement,
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public nsIDOMHTMLDirectoryElement,
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public nsIDOMHTMLQuoteElement,
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public nsIDOMHTMLHeadElement,
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public nsIDOMHTMLHtmlElement
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{
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public:
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nsHTMLSharedElement(already_AddRefed<nsINodeInfo> aNodeInfo);
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virtual ~nsHTMLSharedElement();
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMNode
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NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
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// nsIDOMElement
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NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
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// nsIDOMHTMLElement
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NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
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// nsIDOMHTMLParamElement
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NS_DECL_NSIDOMHTMLPARAMELEMENT
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// nsIDOMHTMLBaseElement
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NS_DECL_NSIDOMHTMLBASEELEMENT
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// nsIDOMHTMLDirectoryElement
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NS_DECL_NSIDOMHTMLDIRECTORYELEMENT
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// nsIDOMHTMLQuoteElement
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NS_DECL_NSIDOMHTMLQUOTEELEMENT
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// nsIDOMHTMLHeadElement
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NS_DECL_NSIDOMHTMLHEADELEMENT
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// nsIDOMHTMLHtmlElement
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NS_DECL_NSIDOMHTMLHTMLELEMENT
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// nsIContent
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virtual PRBool ParseAttribute(PRInt32 aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult);
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nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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const nsAString& aValue, PRBool aNotify)
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{
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return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify);
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}
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virtual nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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nsIAtom* aPrefix, const nsAString& aValue,
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PRBool aNotify);
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virtual nsresult UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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PRBool aNotify);
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virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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PRBool aCompileEventHandlers);
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virtual void UnbindFromTree(PRBool aDeep = PR_TRUE,
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PRBool aNullParent = PR_TRUE);
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virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
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NS_IMETHOD_(PRBool) IsAttributeMapped(const nsIAtom* aAttribute) const;
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virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
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virtual nsXPCClassInfo* GetClassInfo()
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{
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return static_cast<nsXPCClassInfo*>(GetClassInfoInternal());
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}
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nsIClassInfo* GetClassInfoInternal();
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};
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NS_IMPL_NS_NEW_HTML_ELEMENT(Shared)
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nsHTMLSharedElement::nsHTMLSharedElement(already_AddRefed<nsINodeInfo> aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo)
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{
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}
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nsHTMLSharedElement::~nsHTMLSharedElement()
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{
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}
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NS_IMPL_ADDREF_INHERITED(nsHTMLSharedElement, nsGenericElement)
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NS_IMPL_RELEASE_INHERITED(nsHTMLSharedElement, nsGenericElement)
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DOMCI_DATA(HTMLParamElement, nsHTMLSharedElement)
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DOMCI_DATA(HTMLBaseElement, nsHTMLSharedElement)
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DOMCI_DATA(HTMLDirectoryElement, nsHTMLSharedElement)
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DOMCI_DATA(HTMLQuoteElement, nsHTMLSharedElement)
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DOMCI_DATA(HTMLHeadElement, nsHTMLSharedElement)
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DOMCI_DATA(HTMLHtmlElement, nsHTMLSharedElement)
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nsIClassInfo*
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nsHTMLSharedElement::GetClassInfoInternal()
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{
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if (mNodeInfo->Equals(nsGkAtoms::param)) {
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return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLParamElement_id);
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}
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if (mNodeInfo->Equals(nsGkAtoms::base)) {
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return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLBaseElement_id);
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}
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if (mNodeInfo->Equals(nsGkAtoms::dir)) {
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return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLDirectoryElement_id);
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}
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if (mNodeInfo->Equals(nsGkAtoms::q)) {
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return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLQuoteElement_id);
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}
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if (mNodeInfo->Equals(nsGkAtoms::blockquote)) {
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return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLQuoteElement_id);
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}
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if (mNodeInfo->Equals(nsGkAtoms::head)) {
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return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLHeadElement_id);
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}
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if (mNodeInfo->Equals(nsGkAtoms::html)) {
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return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLHtmlElement_id);
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}
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return nsnull;
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}
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// QueryInterface implementation for nsHTMLSharedElement
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NS_INTERFACE_TABLE_HEAD(nsHTMLSharedElement)
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NS_HTML_CONTENT_INTERFACE_TABLE_AMBIGUOUS_BEGIN(nsHTMLSharedElement,
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nsIDOMHTMLParamElement)
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NS_OFFSET_AND_INTERFACE_TABLE_END
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NS_HTML_CONTENT_INTERFACE_TABLE_TO_MAP_SEGUE_AMBIGUOUS(nsHTMLSharedElement,
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nsGenericHTMLElement,
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nsIDOMHTMLParamElement)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLParamElement, param)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLBaseElement, base)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLDirectoryElement, dir)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLQuoteElement, q)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLQuoteElement, blockquote)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLHeadElement, head)
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NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLHtmlElement, html)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO_GETTER(GetClassInfoInternal)
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NS_HTML_CONTENT_INTERFACE_MAP_END
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NS_IMPL_ELEMENT_CLONE(nsHTMLSharedElement)
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// nsIDOMHTMLParamElement
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NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Name, name)
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NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Type, type)
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NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Value, value)
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NS_IMPL_STRING_ATTR(nsHTMLSharedElement, ValueType, valuetype)
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// nsIDOMHTMLDirectoryElement
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NS_IMPL_BOOL_ATTR(nsHTMLSharedElement, Compact, compact)
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// nsIDOMHTMLQuoteElement
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NS_IMPL_URI_ATTR(nsHTMLSharedElement, Cite, cite)
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// nsIDOMHTMLHeadElement
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// Empty
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// nsIDOMHTMLHtmlElement
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NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Version, version)
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// nsIDOMHTMLBaseElement
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NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Target, target)
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NS_IMETHODIMP
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nsHTMLSharedElement::GetHref(nsAString& aValue)
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{
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nsAutoString href;
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GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
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nsCOMPtr<nsIURI> uri;
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nsIDocument* doc = GetOwnerDoc();
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if (doc) {
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nsContentUtils::NewURIWithDocumentCharset(
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getter_AddRefs(uri), href, doc, doc->GetDocumentURI());
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}
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if (!uri) {
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aValue = href;
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return NS_OK;
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}
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nsCAutoString spec;
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uri->GetSpec(spec);
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CopyUTF8toUTF16(spec, aValue);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLSharedElement::SetHref(const nsAString& aValue)
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{
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return SetAttrHelper(nsGkAtoms::href, aValue);
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}
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PRBool
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nsHTMLSharedElement::ParseAttribute(PRInt32 aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult)
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{
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if (aNamespaceID == kNameSpaceID_None &&
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mNodeInfo->Equals(nsGkAtoms::dir)) {
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if (aAttribute == nsGkAtoms::type) {
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return aResult.ParseEnumValue(aValue, kListTypeTable, PR_FALSE);
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}
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if (aAttribute == nsGkAtoms::start) {
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return aResult.ParseIntWithBounds(aValue, 1);
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}
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}
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return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aResult);
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}
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static void
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DirectoryMapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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nsRuleData* aData)
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{
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if (aData->mSIDs & NS_STYLE_INHERIT_BIT(List)) {
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nsCSSValue* listStyleType = aData->ValueForListStyleType();
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if (listStyleType->GetUnit() == eCSSUnit_Null) {
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// type: enum
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::type);
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if (value) {
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if (value->Type() == nsAttrValue::eEnum) {
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listStyleType->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
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} else {
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listStyleType->SetIntValue(NS_STYLE_LIST_STYLE_DISC, eCSSUnit_Enumerated);
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}
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}
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}
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}
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
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}
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NS_IMETHODIMP_(PRBool)
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nsHTMLSharedElement::IsAttributeMapped(const nsIAtom* aAttribute) const
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{
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if (mNodeInfo->Equals(nsGkAtoms::dir)) {
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static const MappedAttributeEntry attributes[] = {
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{ &nsGkAtoms::type },
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// { &nsGkAtoms::compact }, // XXX
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{ nsnull}
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};
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static const MappedAttributeEntry* const map[] = {
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attributes,
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sCommonAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map, NS_ARRAY_LENGTH(map));
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}
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return nsGenericHTMLElement::IsAttributeMapped(aAttribute);
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}
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static void
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SetBaseURIUsingFirstBaseWithHref(nsIDocument* aDocument, nsIContent* aMustMatch)
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{
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NS_PRECONDITION(aDocument, "Need a document!");
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for (nsIContent* child = aDocument->GetFirstChild(); child;
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child = child->GetNextNode()) {
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if (child->IsHTML(nsGkAtoms::base) &&
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child->HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
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if (aMustMatch && child != aMustMatch) {
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return;
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}
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// Resolve the <base> element's href relative to our document URI
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nsAutoString href;
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child->GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
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nsCOMPtr<nsIURI> newBaseURI;
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nsContentUtils::NewURIWithDocumentCharset(
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getter_AddRefs(newBaseURI), href, aDocument,
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aDocument->GetDocumentURI());
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// Try to set our base URI. If that fails, try to set base URI to null
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nsresult rv = aDocument->SetBaseURI(newBaseURI);
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if (NS_FAILED(rv)) {
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aDocument->SetBaseURI(nsnull);
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}
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return;
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}
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}
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aDocument->SetBaseURI(nsnull);
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}
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static void
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SetBaseTargetUsingFirstBaseWithTarget(nsIDocument* aDocument,
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nsIContent* aMustMatch)
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{
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NS_PRECONDITION(aDocument, "Need a document!");
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for (nsIContent* child = aDocument->GetFirstChild(); child;
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child = child->GetNextNode()) {
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if (child->IsHTML(nsGkAtoms::base) &&
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child->HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
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if (aMustMatch && child != aMustMatch) {
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return;
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}
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nsString target;
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child->GetAttr(kNameSpaceID_None, nsGkAtoms::target, target);
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aDocument->SetBaseTarget(target);
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return;
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}
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}
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aDocument->SetBaseTarget(EmptyString());
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}
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nsresult
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nsHTMLSharedElement::SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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nsIAtom* aPrefix, const nsAString& aValue,
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PRBool aNotify)
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{
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nsresult rv = nsGenericHTMLElement::SetAttr(aNameSpaceID, aName, aPrefix,
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aValue, aNotify);
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NS_ENSURE_SUCCESS(rv, rv);
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// If the href attribute of a <base> tag is changing, we may need to update
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// the document's base URI, which will cause all the links on the page to be
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// re-resolved given the new base. If the target attribute is changing, we
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// similarly need to change the base target.
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if (mNodeInfo->Equals(nsGkAtoms::base) &&
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aNameSpaceID == kNameSpaceID_None &&
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IsInDoc()) {
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if (aName == nsGkAtoms::href) {
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SetBaseURIUsingFirstBaseWithHref(GetCurrentDoc(), this);
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} else if (aName == nsGkAtoms::target) {
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SetBaseTargetUsingFirstBaseWithTarget(GetCurrentDoc(), this);
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}
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}
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return NS_OK;
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}
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nsresult
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nsHTMLSharedElement::UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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PRBool aNotify)
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{
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nsresult rv = nsGenericHTMLElement::UnsetAttr(aNameSpaceID, aName, aNotify);
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NS_ENSURE_SUCCESS(rv, rv);
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// If we're the first <base> with an href and our href attribute is being
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// unset, then we're no longer the first <base> with an href, and we need to
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// find the new one. Similar for target.
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if (mNodeInfo->Equals(nsGkAtoms::base) &&
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aNameSpaceID == kNameSpaceID_None &&
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IsInDoc()) {
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if (aName == nsGkAtoms::href) {
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SetBaseURIUsingFirstBaseWithHref(GetCurrentDoc(), nsnull);
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} else if (aName == nsGkAtoms::target) {
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SetBaseTargetUsingFirstBaseWithTarget(GetCurrentDoc(), nsnull);
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}
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}
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return NS_OK;
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}
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nsresult
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nsHTMLSharedElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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PRBool aCompileEventHandlers)
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{
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nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
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aBindingParent,
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aCompileEventHandlers);
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NS_ENSURE_SUCCESS(rv, rv);
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// The document stores a pointer to its base URI and base target, which we may
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// need to update here.
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if (mNodeInfo->Equals(nsGkAtoms::base) &&
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aDocument) {
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
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SetBaseURIUsingFirstBaseWithHref(aDocument, this);
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}
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
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SetBaseTargetUsingFirstBaseWithTarget(aDocument, this);
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}
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}
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return NS_OK;
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}
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void
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nsHTMLSharedElement::UnbindFromTree(PRBool aDeep, PRBool aNullParent)
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{
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nsIDocument* doc = GetCurrentDoc();
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nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
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// If we're removing a <base> from a document, we may need to update the
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// document's base URI and base target
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if (doc && mNodeInfo->Equals(nsGkAtoms::base)) {
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
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SetBaseURIUsingFirstBaseWithHref(doc, nsnull);
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}
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
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SetBaseTargetUsingFirstBaseWithTarget(doc, nsnull);
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}
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}
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}
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nsMapRuleToAttributesFunc
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nsHTMLSharedElement::GetAttributeMappingFunction() const
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{
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if (mNodeInfo->Equals(nsGkAtoms::dir)) {
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return &DirectoryMapAttributesIntoRule;
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}
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return nsGenericHTMLElement::GetAttributeMappingFunction();
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}
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