LCOV - code coverage report
Current view: directory - content/html/content/src - nsHTMLOptGroupElement.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 59 0 0.0 %
Date: 2012-06-02 Functions: 116 0 0.0 %

       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                 : #include "nsIDOMHTMLOptGroupElement.h"
      38                 : #include "nsIDOMEventTarget.h"
      39                 : #include "nsGenericHTMLElement.h"
      40                 : #include "nsGkAtoms.h"
      41                 : #include "nsStyleConsts.h"
      42                 : #include "nsIFrame.h"
      43                 : #include "nsIFormControlFrame.h"
      44                 : #include "nsEventStates.h"
      45                 : #include "nsIDocument.h"
      46                 : 
      47                 : #include "nsEventDispatcher.h"
      48                 : #include "nsHTMLSelectElement.h"
      49                 : 
      50                 : /**
      51                 :  * The implementation of <optgroup>
      52                 :  */
      53                 : class nsHTMLOptGroupElement : public nsGenericHTMLElement,
      54                 :                               public nsIDOMHTMLOptGroupElement
      55                 : {
      56                 : public:
      57                 :   nsHTMLOptGroupElement(already_AddRefed<nsINodeInfo> aNodeInfo);
      58                 :   virtual ~nsHTMLOptGroupElement();
      59                 : 
      60                 :   // nsISupports
      61                 :   NS_DECL_ISUPPORTS_INHERITED
      62                 : 
      63                 :   // nsIDOMNode
      64               0 :   NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
      65                 : 
      66                 :   // nsIDOMElement
      67               0 :   NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
      68                 : 
      69                 :   // nsIDOMHTMLElement
      70               0 :   NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
      71                 : 
      72                 :   // nsIDOMHTMLOptGroupElement
      73                 :   NS_DECL_NSIDOMHTMLOPTGROUPELEMENT
      74                 : 
      75                 :   // nsGenericElement
      76                 :   virtual nsresult InsertChildAt(nsIContent* aKid, PRUint32 aIndex,
      77                 :                                  bool aNotify);
      78                 :   virtual nsresult RemoveChildAt(PRUint32 aIndex, bool aNotify);
      79                 : 
      80                 :   // nsIContent
      81                 :   virtual nsresult PreHandleEvent(nsEventChainPreVisitor& aVisitor);
      82                 : 
      83                 :   virtual nsEventStates IntrinsicState() const;
      84                 :  
      85                 :   virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
      86                 : 
      87                 :   virtual nsXPCClassInfo* GetClassInfo();
      88                 : 
      89               0 :   virtual bool IsDisabled() const {
      90               0 :     return HasAttr(kNameSpaceID_None, nsGkAtoms::disabled);
      91                 :   }
      92                 : protected:
      93                 : 
      94                 :   /**
      95                 :    * Get the select content element that contains this option
      96                 :    * @param aSelectElement the select element [OUT]
      97                 :    */
      98                 :   nsIContent* GetSelect();
      99                 : };
     100                 : 
     101                 : 
     102               0 : NS_IMPL_NS_NEW_HTML_ELEMENT(OptGroup)
     103                 : 
     104                 : 
     105               0 : nsHTMLOptGroupElement::nsHTMLOptGroupElement(already_AddRefed<nsINodeInfo> aNodeInfo)
     106               0 :   : nsGenericHTMLElement(aNodeInfo)
     107                 : {
     108                 :   // We start off enabled
     109               0 :   AddStatesSilently(NS_EVENT_STATE_ENABLED);
     110               0 : }
     111                 : 
     112               0 : nsHTMLOptGroupElement::~nsHTMLOptGroupElement()
     113                 : {
     114               0 : }
     115                 : 
     116                 : 
     117               0 : NS_IMPL_ADDREF_INHERITED(nsHTMLOptGroupElement, nsGenericElement)
     118               0 : NS_IMPL_RELEASE_INHERITED(nsHTMLOptGroupElement, nsGenericElement)
     119                 : 
     120                 : 
     121               0 : DOMCI_NODE_DATA(HTMLOptGroupElement, nsHTMLOptGroupElement)
     122                 : 
     123                 : // QueryInterface implementation for nsHTMLOptGroupElement
     124               0 : NS_INTERFACE_TABLE_HEAD(nsHTMLOptGroupElement)
     125               0 :   NS_HTML_CONTENT_INTERFACE_TABLE1(nsHTMLOptGroupElement,
     126                 :                                    nsIDOMHTMLOptGroupElement)
     127               0 :   NS_HTML_CONTENT_INTERFACE_TABLE_TO_MAP_SEGUE(nsHTMLOptGroupElement,
     128                 :                                                nsGenericHTMLElement)
     129               0 : NS_HTML_CONTENT_INTERFACE_TABLE_TAIL_CLASSINFO(HTMLOptGroupElement)
     130                 : 
     131                 : 
     132               0 : NS_IMPL_ELEMENT_CLONE(nsHTMLOptGroupElement)
     133                 : 
     134                 : 
     135               0 : NS_IMPL_BOOL_ATTR(nsHTMLOptGroupElement, Disabled, disabled)
     136               0 : NS_IMPL_STRING_ATTR(nsHTMLOptGroupElement, Label, label)
     137                 : 
     138                 : 
     139                 : nsresult
     140               0 : nsHTMLOptGroupElement::PreHandleEvent(nsEventChainPreVisitor& aVisitor)
     141                 : {
     142               0 :   aVisitor.mCanHandle = false;
     143                 :   // Do not process any DOM events if the element is disabled
     144                 :   // XXXsmaug This is not the right thing to do. But what is?
     145               0 :   if (HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) {
     146               0 :     return NS_OK;
     147                 :   }
     148                 : 
     149               0 :   nsIFrame* frame = GetPrimaryFrame();
     150               0 :   if (frame) {
     151               0 :     const nsStyleUserInterface* uiStyle = frame->GetStyleUserInterface();
     152               0 :     if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE ||
     153                 :         uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED) {
     154               0 :       return NS_OK;
     155                 :     }
     156                 :   }
     157                 : 
     158               0 :   return nsGenericHTMLElement::PreHandleEvent(aVisitor);
     159                 : }
     160                 : 
     161                 : nsIContent*
     162               0 : nsHTMLOptGroupElement::GetSelect()
     163                 : {
     164               0 :   nsIContent* parent = this;
     165               0 :   while ((parent = parent->GetParent()) && parent->IsHTML()) {
     166               0 :     if (parent->Tag() == nsGkAtoms::select) {
     167               0 :       return parent;
     168                 :     }
     169               0 :     if (parent->Tag() != nsGkAtoms::optgroup) {
     170               0 :       break;
     171                 :     }
     172                 :   }
     173                 :   
     174               0 :   return nsnull;
     175                 : }
     176                 : 
     177                 : nsresult
     178               0 : nsHTMLOptGroupElement::InsertChildAt(nsIContent* aKid,
     179                 :                                      PRUint32 aIndex,
     180                 :                                      bool aNotify)
     181                 : {
     182               0 :   nsSafeOptionListMutation safeMutation(GetSelect(), this, aKid, aIndex, aNotify);
     183               0 :   nsresult rv = nsGenericHTMLElement::InsertChildAt(aKid, aIndex, aNotify);
     184               0 :   if (NS_FAILED(rv)) {
     185               0 :     safeMutation.MutationFailed();
     186                 :   }
     187               0 :   return rv;
     188                 : }
     189                 : 
     190                 : nsresult
     191               0 : nsHTMLOptGroupElement::RemoveChildAt(PRUint32 aIndex, bool aNotify)
     192                 : {
     193                 :   nsSafeOptionListMutation safeMutation(GetSelect(), this, nsnull, aIndex,
     194               0 :                                         aNotify);
     195               0 :   nsresult rv = nsGenericHTMLElement::RemoveChildAt(aIndex, aNotify);
     196               0 :   if (NS_FAILED(rv)) {
     197               0 :     safeMutation.MutationFailed();
     198                 :   }
     199               0 :   return rv;
     200                 : }
     201                 : 
     202                 : nsEventStates
     203               0 : nsHTMLOptGroupElement::IntrinsicState() const
     204                 : {
     205               0 :   nsEventStates state = nsGenericHTMLElement::IntrinsicState();
     206                 : 
     207               0 :   if (HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) {
     208               0 :     state |= NS_EVENT_STATE_DISABLED;
     209               0 :     state &= ~NS_EVENT_STATE_ENABLED;
     210                 :   } else {
     211               0 :     state &= ~NS_EVENT_STATE_DISABLED;
     212               0 :     state |= NS_EVENT_STATE_ENABLED;
     213                 :   }
     214                 : 
     215                 :   return state;
     216                 : }

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