LCOV - code coverage report
Current view: directory - content/html/content/src - nsHTMLSharedElement.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 159 42 26.4 %
Date: 2012-06-02 Functions: 135 11 8.1 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla Communicator client code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "mozilla/Util.h"
      39                 : 
      40                 : #include "nsIDOMHTMLParamElement.h"
      41                 : #include "nsIDOMHTMLBaseElement.h"
      42                 : #include "nsIDOMHTMLDirectoryElement.h"
      43                 : #include "nsIDOMHTMLQuoteElement.h"
      44                 : #include "nsIDOMHTMLHeadElement.h"
      45                 : #include "nsIDOMHTMLHtmlElement.h"
      46                 : #include "nsGenericHTMLElement.h"
      47                 : 
      48                 : #include "nsGkAtoms.h"
      49                 : #include "nsStyleConsts.h"
      50                 : #include "nsRuleData.h"
      51                 : #include "nsMappedAttributes.h"
      52                 : #include "nsContentUtils.h"
      53                 : 
      54                 : using namespace mozilla;
      55                 : 
      56                 : // XXX nav4 has type= start= (same as OL/UL)
      57                 : extern nsAttrValue::EnumTable kListTypeTable[];
      58                 : 
      59                 : class nsHTMLSharedElement : public nsGenericHTMLElement,
      60                 :                             public nsIDOMHTMLParamElement,
      61                 :                             public nsIDOMHTMLBaseElement,
      62                 :                             public nsIDOMHTMLDirectoryElement,
      63                 :                             public nsIDOMHTMLQuoteElement,
      64                 :                             public nsIDOMHTMLHeadElement,
      65                 :                             public nsIDOMHTMLHtmlElement
      66                 : {
      67                 : public:
      68                 :   nsHTMLSharedElement(already_AddRefed<nsINodeInfo> aNodeInfo);
      69                 :   virtual ~nsHTMLSharedElement();
      70                 : 
      71                 :   // nsISupports
      72                 :   NS_DECL_ISUPPORTS_INHERITED
      73                 : 
      74                 :   // nsIDOMNode
      75               0 :   NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
      76                 : 
      77                 :   // nsIDOMElement
      78               0 :   NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
      79                 : 
      80                 :   // nsIDOMHTMLElement
      81               0 :   NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
      82                 : 
      83                 :   // nsIDOMHTMLParamElement
      84                 :   NS_DECL_NSIDOMHTMLPARAMELEMENT
      85                 : 
      86                 :   // nsIDOMHTMLBaseElement
      87                 :   NS_DECL_NSIDOMHTMLBASEELEMENT
      88                 : 
      89                 :   // nsIDOMHTMLDirectoryElement
      90                 :   NS_DECL_NSIDOMHTMLDIRECTORYELEMENT
      91                 : 
      92                 :   // nsIDOMHTMLQuoteElement
      93                 :   NS_DECL_NSIDOMHTMLQUOTEELEMENT
      94                 : 
      95                 :   // nsIDOMHTMLHeadElement
      96                 :   NS_DECL_NSIDOMHTMLHEADELEMENT
      97                 : 
      98                 :   // nsIDOMHTMLHtmlElement
      99                 :   NS_DECL_NSIDOMHTMLHTMLELEMENT
     100                 : 
     101                 :   // nsIContent
     102                 :   virtual bool ParseAttribute(PRInt32 aNamespaceID,
     103                 :                                 nsIAtom* aAttribute,
     104                 :                                 const nsAString& aValue,
     105                 :                                 nsAttrValue& aResult);
     106                 :   nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
     107                 :                    const nsAString& aValue, bool aNotify)
     108                 :   {
     109                 :     return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify);
     110                 :   }
     111                 :   virtual nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
     112                 :                            nsIAtom* aPrefix, const nsAString& aValue,
     113                 :                            bool aNotify);
     114                 : 
     115                 :   virtual nsresult UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
     116                 :                              bool aNotify);
     117                 : 
     118                 :   virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
     119                 :                               nsIContent* aBindingParent,
     120                 :                               bool aCompileEventHandlers);
     121                 : 
     122                 :   virtual void UnbindFromTree(bool aDeep = true,
     123                 :                               bool aNullParent = true);
     124                 : 
     125                 :   virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
     126                 :   NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const;
     127                 : 
     128                 :   virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
     129                 : 
     130               0 :   virtual nsXPCClassInfo* GetClassInfo()
     131                 :   {
     132               0 :     return static_cast<nsXPCClassInfo*>(GetClassInfoInternal());
     133                 :   }
     134                 :   nsIClassInfo* GetClassInfoInternal();
     135                 : };
     136                 : 
     137             940 : NS_IMPL_NS_NEW_HTML_ELEMENT(Shared)
     138                 : 
     139                 : 
     140             470 : nsHTMLSharedElement::nsHTMLSharedElement(already_AddRefed<nsINodeInfo> aNodeInfo)
     141             470 :   : nsGenericHTMLElement(aNodeInfo)
     142                 : {
     143             470 : }
     144                 : 
     145             940 : nsHTMLSharedElement::~nsHTMLSharedElement()
     146                 : {
     147            1880 : }
     148                 : 
     149                 : 
     150            4710 : NS_IMPL_ADDREF_INHERITED(nsHTMLSharedElement, nsGenericElement)
     151            4710 : NS_IMPL_RELEASE_INHERITED(nsHTMLSharedElement, nsGenericElement)
     152                 : 
     153                 : 
     154                 : DOMCI_DATA(HTMLParamElement, nsHTMLSharedElement)
     155                 : DOMCI_DATA(HTMLBaseElement, nsHTMLSharedElement)
     156                 : DOMCI_DATA(HTMLDirectoryElement, nsHTMLSharedElement)
     157                 : DOMCI_DATA(HTMLQuoteElement, nsHTMLSharedElement)
     158                 : DOMCI_DATA(HTMLHeadElement, nsHTMLSharedElement)
     159                 : DOMCI_DATA(HTMLHtmlElement, nsHTMLSharedElement)
     160                 : 
     161                 : nsIClassInfo*
     162               0 : nsHTMLSharedElement::GetClassInfoInternal()
     163                 : {
     164               0 :   if (mNodeInfo->Equals(nsGkAtoms::param)) {
     165               0 :     return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLParamElement_id);
     166                 :   }
     167               0 :   if (mNodeInfo->Equals(nsGkAtoms::base)) {
     168               0 :     return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLBaseElement_id);
     169                 :   }
     170               0 :   if (mNodeInfo->Equals(nsGkAtoms::dir)) {
     171               0 :     return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLDirectoryElement_id);
     172                 :   }
     173               0 :   if (mNodeInfo->Equals(nsGkAtoms::q)) {
     174               0 :     return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLQuoteElement_id);
     175                 :   }
     176               0 :   if (mNodeInfo->Equals(nsGkAtoms::blockquote)) {
     177               0 :     return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLQuoteElement_id);
     178                 :   }
     179               0 :   if (mNodeInfo->Equals(nsGkAtoms::head)) {
     180               0 :     return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLHeadElement_id);
     181                 :   }
     182               0 :   if (mNodeInfo->Equals(nsGkAtoms::html)) {
     183               0 :     return NS_GetDOMClassInfoInstance(eDOMClassInfo_HTMLHtmlElement_id);
     184                 :   }
     185               0 :   return nsnull;
     186                 : }
     187                 : 
     188                 : // QueryInterface implementation for nsHTMLSharedElement
     189           14203 : NS_INTERFACE_TABLE_HEAD(nsHTMLSharedElement)
     190                 :   NS_HTML_CONTENT_INTERFACE_TABLE_AMBIGUOUS_BEGIN(nsHTMLSharedElement,
     191                 :                                                   nsIDOMHTMLParamElement)
     192           14203 :   NS_OFFSET_AND_INTERFACE_TABLE_END
     193           14203 :   NS_HTML_CONTENT_INTERFACE_TABLE_TO_MAP_SEGUE_AMBIGUOUS(nsHTMLSharedElement,
     194                 :                                                          nsGenericHTMLElement,
     195                 :                                                          nsIDOMHTMLParamElement)
     196             234 :   NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLParamElement, param)
     197             234 :   NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLBaseElement, base)
     198             234 :   NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLDirectoryElement, dir)
     199             234 :   NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLQuoteElement, q)
     200             234 :   NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLQuoteElement, blockquote)
     201             234 :   NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLHeadElement, head)
     202             234 :   NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLHtmlElement, html)
     203                 : 
     204             234 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO_GETTER(GetClassInfoInternal)
     205             234 : NS_HTML_CONTENT_INTERFACE_MAP_END
     206                 : 
     207                 : 
     208               0 : NS_IMPL_ELEMENT_CLONE(nsHTMLSharedElement)
     209                 : 
     210                 : // nsIDOMHTMLParamElement
     211               0 : NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Name, name)
     212               0 : NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Type, type)
     213               0 : NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Value, value)
     214               0 : NS_IMPL_STRING_ATTR(nsHTMLSharedElement, ValueType, valuetype)
     215                 : 
     216                 : // nsIDOMHTMLDirectoryElement
     217               0 : NS_IMPL_BOOL_ATTR(nsHTMLSharedElement, Compact, compact)
     218                 : 
     219                 : // nsIDOMHTMLQuoteElement
     220               0 : NS_IMPL_URI_ATTR(nsHTMLSharedElement, Cite, cite)
     221                 : 
     222                 : // nsIDOMHTMLHeadElement
     223                 : // Empty
     224                 : 
     225                 : // nsIDOMHTMLHtmlElement
     226               0 : NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Version, version)
     227                 : 
     228                 : // nsIDOMHTMLBaseElement
     229               0 : NS_IMPL_STRING_ATTR(nsHTMLSharedElement, Target, target)
     230                 : NS_IMETHODIMP
     231               0 : nsHTMLSharedElement::GetHref(nsAString& aValue)
     232                 : {
     233               0 :   nsAutoString href;
     234               0 :   GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
     235                 : 
     236               0 :   nsCOMPtr<nsIURI> uri;
     237               0 :   nsIDocument* doc = OwnerDoc();
     238                 :   nsContentUtils::NewURIWithDocumentCharset(
     239               0 :     getter_AddRefs(uri), href, doc, doc->GetDocumentURI());
     240                 : 
     241               0 :   if (!uri) {
     242               0 :     aValue = href;
     243               0 :     return NS_OK;
     244                 :   }
     245                 :   
     246               0 :   nsCAutoString spec;
     247               0 :   uri->GetSpec(spec);
     248               0 :   CopyUTF8toUTF16(spec, aValue);
     249                 : 
     250               0 :   return NS_OK;
     251                 : }
     252                 : NS_IMETHODIMP
     253               0 : nsHTMLSharedElement::SetHref(const nsAString& aValue)
     254                 : {
     255               0 :   return SetAttrHelper(nsGkAtoms::href, aValue);
     256                 : }
     257                 : 
     258                 : 
     259                 : bool
     260               1 : nsHTMLSharedElement::ParseAttribute(PRInt32 aNamespaceID,
     261                 :                                     nsIAtom* aAttribute,
     262                 :                                     const nsAString& aValue,
     263                 :                                     nsAttrValue& aResult)
     264                 : {
     265               1 :   if (aNamespaceID == kNameSpaceID_None &&
     266               0 :       mNodeInfo->Equals(nsGkAtoms::dir)) {
     267               0 :     if (aAttribute == nsGkAtoms::type) {
     268               0 :       return aResult.ParseEnumValue(aValue, kListTypeTable, false);
     269                 :     }
     270               0 :     if (aAttribute == nsGkAtoms::start) {
     271               0 :       return aResult.ParseIntWithBounds(aValue, 1);
     272                 :     }
     273                 :   }
     274                 : 
     275                 :   return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
     276               1 :                                               aResult);
     277                 : }
     278                 : 
     279                 : static void
     280               0 : DirectoryMapAttributesIntoRule(const nsMappedAttributes* aAttributes,
     281                 :                                nsRuleData* aData)
     282                 : {
     283               0 :   if (aData->mSIDs & NS_STYLE_INHERIT_BIT(List)) {
     284               0 :     nsCSSValue* listStyleType = aData->ValueForListStyleType();
     285               0 :     if (listStyleType->GetUnit() == eCSSUnit_Null) {
     286                 :       // type: enum
     287               0 :       const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::type);
     288               0 :       if (value) {
     289               0 :         if (value->Type() == nsAttrValue::eEnum) {
     290               0 :           listStyleType->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
     291                 :         } else {
     292               0 :           listStyleType->SetIntValue(NS_STYLE_LIST_STYLE_DISC, eCSSUnit_Enumerated);
     293                 :         }
     294                 :       }
     295                 :     }
     296                 :   }
     297                 : 
     298               0 :   nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
     299               0 : }
     300                 : 
     301                 : NS_IMETHODIMP_(bool)
     302               0 : nsHTMLSharedElement::IsAttributeMapped(const nsIAtom* aAttribute) const
     303                 : {
     304               0 :   if (mNodeInfo->Equals(nsGkAtoms::dir)) {
     305                 :     static const MappedAttributeEntry attributes[] = {
     306                 :       { &nsGkAtoms::type },
     307                 :       // { &nsGkAtoms::compact }, // XXX
     308                 :       { nsnull} 
     309                 :     };
     310                 :   
     311                 :     static const MappedAttributeEntry* const map[] = {
     312                 :       attributes,
     313                 :       sCommonAttributeMap,
     314                 :     };
     315                 : 
     316               0 :     return FindAttributeDependence(aAttribute, map);
     317                 :   }
     318                 : 
     319               0 :   return nsGenericHTMLElement::IsAttributeMapped(aAttribute);
     320                 : }
     321                 : 
     322                 : static void
     323               0 : SetBaseURIUsingFirstBaseWithHref(nsIDocument* aDocument, nsIContent* aMustMatch)
     324                 : {
     325               0 :   NS_PRECONDITION(aDocument, "Need a document!");
     326                 : 
     327               0 :   for (nsIContent* child = aDocument->GetFirstChild(); child;
     328               0 :        child = child->GetNextNode()) {
     329               0 :     if (child->IsHTML(nsGkAtoms::base) &&
     330               0 :         child->HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
     331               0 :       if (aMustMatch && child != aMustMatch) {
     332               0 :         return;
     333                 :       }
     334                 : 
     335                 :       // Resolve the <base> element's href relative to our document URI
     336               0 :       nsAutoString href;
     337               0 :       child->GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
     338                 : 
     339               0 :       nsCOMPtr<nsIURI> newBaseURI;
     340                 :       nsContentUtils::NewURIWithDocumentCharset(
     341               0 :         getter_AddRefs(newBaseURI), href, aDocument,
     342               0 :         aDocument->GetDocumentURI());
     343                 : 
     344                 :       // Try to set our base URI.  If that fails, try to set base URI to null
     345               0 :       nsresult rv = aDocument->SetBaseURI(newBaseURI);
     346               0 :       if (NS_FAILED(rv)) {
     347               0 :         aDocument->SetBaseURI(nsnull);
     348                 :       }
     349                 :       return;
     350                 :     }
     351                 :   }
     352                 : 
     353               0 :   aDocument->SetBaseURI(nsnull);
     354                 : }
     355                 : 
     356                 : static void
     357               0 : SetBaseTargetUsingFirstBaseWithTarget(nsIDocument* aDocument,
     358                 :                                       nsIContent* aMustMatch)
     359                 : {
     360               0 :   NS_PRECONDITION(aDocument, "Need a document!");
     361                 : 
     362               0 :   for (nsIContent* child = aDocument->GetFirstChild(); child;
     363               0 :        child = child->GetNextNode()) {
     364               0 :     if (child->IsHTML(nsGkAtoms::base) &&
     365               0 :         child->HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
     366               0 :       if (aMustMatch && child != aMustMatch) {
     367               0 :         return;
     368                 :       }
     369                 : 
     370               0 :       nsString target;
     371               0 :       child->GetAttr(kNameSpaceID_None, nsGkAtoms::target, target);
     372               0 :       aDocument->SetBaseTarget(target);
     373                 :       return;
     374                 :     }
     375                 :   }
     376                 : 
     377               0 :   aDocument->SetBaseTarget(EmptyString());
     378                 : }
     379                 : 
     380                 : nsresult
     381               1 : nsHTMLSharedElement::SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
     382                 :                              nsIAtom* aPrefix, const nsAString& aValue,
     383                 :                              bool aNotify)
     384                 : {
     385                 :   nsresult rv = nsGenericHTMLElement::SetAttr(aNameSpaceID, aName, aPrefix,
     386               1 :                                               aValue, aNotify);
     387               1 :   NS_ENSURE_SUCCESS(rv, rv);
     388                 : 
     389                 :   // If the href attribute of a <base> tag is changing, we may need to update
     390                 :   // the document's base URI, which will cause all the links on the page to be
     391                 :   // re-resolved given the new base.  If the target attribute is changing, we
     392                 :   // similarly need to change the base target.
     393               1 :   if (mNodeInfo->Equals(nsGkAtoms::base) &&
     394                 :       aNameSpaceID == kNameSpaceID_None &&
     395               0 :       IsInDoc()) {
     396               0 :     if (aName == nsGkAtoms::href) {
     397               0 :       SetBaseURIUsingFirstBaseWithHref(GetCurrentDoc(), this);
     398               0 :     } else if (aName == nsGkAtoms::target) {
     399               0 :       SetBaseTargetUsingFirstBaseWithTarget(GetCurrentDoc(), this);
     400                 :     }
     401                 :   }
     402                 : 
     403               1 :   return NS_OK;
     404                 : }
     405                 : 
     406                 : nsresult
     407               0 : nsHTMLSharedElement::UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
     408                 :                                bool aNotify)
     409                 : {
     410               0 :   nsresult rv = nsGenericHTMLElement::UnsetAttr(aNameSpaceID, aName, aNotify);
     411               0 :   NS_ENSURE_SUCCESS(rv, rv);
     412                 : 
     413                 :   // If we're the first <base> with an href and our href attribute is being
     414                 :   // unset, then we're no longer the first <base> with an href, and we need to
     415                 :   // find the new one.  Similar for target.
     416               0 :   if (mNodeInfo->Equals(nsGkAtoms::base) &&
     417                 :       aNameSpaceID == kNameSpaceID_None &&
     418               0 :       IsInDoc()) {
     419               0 :     if (aName == nsGkAtoms::href) {
     420               0 :       SetBaseURIUsingFirstBaseWithHref(GetCurrentDoc(), nsnull);
     421               0 :     } else if (aName == nsGkAtoms::target) {
     422               0 :       SetBaseTargetUsingFirstBaseWithTarget(GetCurrentDoc(), nsnull);
     423                 :     }
     424                 :   }
     425                 : 
     426               0 :   return NS_OK;
     427                 : }
     428                 : 
     429                 : nsresult
     430             470 : nsHTMLSharedElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
     431                 :                                 nsIContent* aBindingParent,
     432                 :                                 bool aCompileEventHandlers)
     433                 : {
     434                 :   nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
     435                 :                                                  aBindingParent,
     436             470 :                                                  aCompileEventHandlers);
     437             470 :   NS_ENSURE_SUCCESS(rv, rv);
     438                 : 
     439                 :   // The document stores a pointer to its base URI and base target, which we may
     440                 :   // need to update here.
     441             470 :   if (mNodeInfo->Equals(nsGkAtoms::base) &&
     442                 :       aDocument) {
     443               1 :     if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
     444               0 :       SetBaseURIUsingFirstBaseWithHref(aDocument, this);
     445                 :     }
     446               1 :     if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
     447               0 :       SetBaseTargetUsingFirstBaseWithTarget(aDocument, this);
     448                 :     }
     449                 :   }
     450                 : 
     451             470 :   return NS_OK;
     452                 : }
     453                 : 
     454                 : void
     455             640 : nsHTMLSharedElement::UnbindFromTree(bool aDeep, bool aNullParent)
     456                 : {
     457             640 :   nsIDocument* doc = GetCurrentDoc();
     458                 : 
     459             640 :   nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
     460                 : 
     461                 :   // If we're removing a <base> from a document, we may need to update the
     462                 :   // document's base URI and base target
     463             640 :   if (doc && mNodeInfo->Equals(nsGkAtoms::base)) {
     464               1 :     if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
     465               0 :       SetBaseURIUsingFirstBaseWithHref(doc, nsnull);
     466                 :     }
     467               1 :     if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
     468               0 :       SetBaseTargetUsingFirstBaseWithTarget(doc, nsnull);
     469                 :     }
     470                 :   }
     471             640 : }
     472                 : 
     473                 : nsMapRuleToAttributesFunc
     474               0 : nsHTMLSharedElement::GetAttributeMappingFunction() const
     475                 : {
     476               0 :   if (mNodeInfo->Equals(nsGkAtoms::dir)) {
     477               0 :     return &DirectoryMapAttributesIntoRule;
     478                 :   }
     479                 : 
     480               0 :   return nsGenericHTMLElement::GetAttributeMappingFunction();
     481                 : }

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