LCOV - code coverage report
Current view: directory - accessible/src/xul - nsXULTabAccessible.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 84 0 0.0 %
Date: 2012-06-02 Functions: 18 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.org 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                 :  *   Author: John Gaunt (jgaunt@netscape.com)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #include "nsXULTabAccessible.h"
      40                 : 
      41                 : #include "nsAccUtils.h"
      42                 : #include "Relation.h"
      43                 : #include "Role.h"
      44                 : #include "States.h"
      45                 : 
      46                 : // NOTE: alphabetically ordered
      47                 : #include "nsIAccessibleRelation.h"
      48                 : #include "nsIDocument.h"
      49                 : #include "nsIFrame.h"
      50                 : #include "nsIDOMDocument.h"
      51                 : #include "nsIDOMXULSelectCntrlEl.h"
      52                 : #include "nsIDOMXULSelectCntrlItemEl.h"
      53                 : #include "nsIDOMXULRelatedElement.h"
      54                 : 
      55                 : using namespace mozilla::a11y;
      56                 : 
      57                 : ////////////////////////////////////////////////////////////////////////////////
      58                 : // nsXULTabAccessible
      59                 : ////////////////////////////////////////////////////////////////////////////////
      60                 : 
      61               0 : nsXULTabAccessible::
      62                 :   nsXULTabAccessible(nsIContent* aContent, nsDocAccessible* aDoc) :
      63               0 :   nsAccessibleWrap(aContent, aDoc)
      64                 : {
      65               0 : }
      66                 : 
      67                 : ////////////////////////////////////////////////////////////////////////////////
      68                 : // nsXULTabAccessible: nsIAccessible
      69                 : 
      70                 : PRUint8
      71               0 : nsXULTabAccessible::ActionCount()
      72                 : {
      73               0 :   return 1;
      74                 : }
      75                 : 
      76                 : /** Return the name of our only action  */
      77               0 : NS_IMETHODIMP nsXULTabAccessible::GetActionName(PRUint8 aIndex, nsAString& aName)
      78                 : {
      79               0 :   if (aIndex == eAction_Switch) {
      80               0 :     aName.AssignLiteral("switch"); 
      81               0 :     return NS_OK;
      82                 :   }
      83               0 :   return NS_ERROR_INVALID_ARG;
      84                 : }
      85                 : 
      86                 : /** Tell the tab to do its action */
      87               0 : NS_IMETHODIMP nsXULTabAccessible::DoAction(PRUint8 index)
      88                 : {
      89               0 :   if (index == eAction_Switch) {
      90               0 :     nsCOMPtr<nsIDOMXULElement> tab(do_QueryInterface(mContent));
      91               0 :     if ( tab )
      92                 :     {
      93               0 :       tab->Click();
      94               0 :       return NS_OK;
      95                 :     }
      96               0 :     return NS_ERROR_FAILURE;
      97                 :   }
      98               0 :   return NS_ERROR_INVALID_ARG;
      99                 : }
     100                 : 
     101                 : ////////////////////////////////////////////////////////////////////////////////
     102                 : // nsXULTabAccessible: nsAccessible
     103                 : 
     104                 : role
     105               0 : nsXULTabAccessible::NativeRole()
     106                 : {
     107               0 :   return roles::PAGETAB;
     108                 : }
     109                 : 
     110                 : PRUint64
     111               0 : nsXULTabAccessible::NativeState()
     112                 : {
     113                 :   // Possible states: focused, focusable, unavailable(disabled), offscreen.
     114                 : 
     115                 :   // get focus and disable status from base class
     116               0 :   PRUint64 state = nsAccessibleWrap::NativeState();
     117                 : 
     118                 :   // In the past, tabs have been focusable in classic theme
     119                 :   // They may be again in the future
     120                 :   // Check style for -moz-user-focus: normal to see if it's focusable
     121               0 :   state &= ~states::FOCUSABLE;
     122                 : 
     123               0 :   nsIFrame *frame = mContent->GetPrimaryFrame();
     124               0 :   if (frame) {
     125               0 :     const nsStyleUserInterface* ui = frame->GetStyleUserInterface();
     126               0 :     if (ui->mUserFocus == NS_STYLE_USER_FOCUS_NORMAL)
     127               0 :       state |= states::FOCUSABLE;
     128                 :   }
     129                 : 
     130                 :   // Check whether the tab is selected
     131               0 :   state |= states::SELECTABLE;
     132               0 :   state &= ~states::SELECTED;
     133               0 :   nsCOMPtr<nsIDOMXULSelectControlItemElement> tab(do_QueryInterface(mContent));
     134               0 :   if (tab) {
     135               0 :     bool selected = false;
     136               0 :     if (NS_SUCCEEDED(tab->GetSelected(&selected)) && selected)
     137               0 :       state |= states::SELECTED;
     138                 :   }
     139               0 :   return state;
     140                 : }
     141                 : 
     142                 : // nsIAccessible
     143                 : Relation
     144               0 : nsXULTabAccessible::RelationByType(PRUint32 aType)
     145                 : {
     146               0 :   Relation rel = nsAccessibleWrap::RelationByType(aType);
     147               0 :   if (aType != nsIAccessibleRelation::RELATION_LABEL_FOR)
     148               0 :     return rel;
     149                 : 
     150                 :   // Expose 'LABEL_FOR' relation on tab accessible for tabpanel accessible.
     151                 :   nsCOMPtr<nsIDOMXULRelatedElement> tabsElm =
     152               0 :     do_QueryInterface(mContent->GetParent());
     153               0 :   if (!tabsElm)
     154                 :     return rel;
     155                 : 
     156               0 :   nsCOMPtr<nsIDOMNode> domNode(DOMNode());
     157               0 :   nsCOMPtr<nsIDOMNode> tabpanelNode;
     158               0 :   tabsElm->GetRelatedElement(domNode, getter_AddRefs(tabpanelNode));
     159               0 :   if (!tabpanelNode)
     160                 :     return rel;
     161                 : 
     162               0 :   nsCOMPtr<nsIContent> tabpanelContent(do_QueryInterface(tabpanelNode));
     163               0 :   rel.AppendTarget(tabpanelContent);
     164                 :   return rel;
     165                 : }
     166                 : 
     167                 : void
     168               0 : nsXULTabAccessible::GetPositionAndSizeInternal(PRInt32 *aPosInSet,
     169                 :                                                PRInt32 *aSetSize)
     170                 : {
     171                 :   nsAccUtils::GetPositionAndSizeForXULSelectControlItem(mContent, aPosInSet,
     172               0 :                                                         aSetSize);
     173               0 : }
     174                 : 
     175                 : 
     176                 : ////////////////////////////////////////////////////////////////////////////////
     177                 : // nsXULTabsAccessible
     178                 : ////////////////////////////////////////////////////////////////////////////////
     179                 : 
     180               0 : nsXULTabsAccessible::
     181                 :   nsXULTabsAccessible(nsIContent* aContent, nsDocAccessible* aDoc) :
     182               0 :   XULSelectControlAccessible(aContent, aDoc)
     183                 : {
     184               0 : }
     185                 : 
     186                 : role
     187               0 : nsXULTabsAccessible::NativeRole()
     188                 : {
     189               0 :   return roles::PAGETABLIST;
     190                 : }
     191                 : 
     192                 : PRUint8
     193               0 : nsXULTabsAccessible::ActionCount()
     194                 : {
     195               0 :   return 0;
     196                 : }
     197                 : 
     198                 : /** no value */
     199               0 : NS_IMETHODIMP nsXULTabsAccessible::GetValue(nsAString& _retval)
     200                 : {
     201               0 :   return NS_OK;
     202                 : }
     203                 : 
     204                 : nsresult
     205               0 : nsXULTabsAccessible::GetNameInternal(nsAString& aName)
     206                 : {
     207                 :   // no name
     208               0 :   return NS_OK;
     209                 : }
     210                 : 
     211                 : 
     212                 : ////////////////////////////////////////////////////////////////////////////////
     213                 : // nsXULTabpanelsAccessible
     214                 : ////////////////////////////////////////////////////////////////////////////////
     215                 : 
     216               0 : nsXULTabpanelsAccessible::
     217                 :   nsXULTabpanelsAccessible(nsIContent* aContent, nsDocAccessible* aDoc) :
     218               0 :   nsAccessibleWrap(aContent, aDoc)
     219                 : {
     220               0 : }
     221                 : 
     222                 : role
     223               0 : nsXULTabpanelsAccessible::NativeRole()
     224                 : {
     225               0 :   return roles::PANE;
     226                 : }
     227                 : 
     228                 : 
     229                 : ////////////////////////////////////////////////////////////////////////////////
     230                 : // nsXULTabpanelAccessible
     231                 : ////////////////////////////////////////////////////////////////////////////////
     232                 : 
     233               0 : nsXULTabpanelAccessible::
     234                 :   nsXULTabpanelAccessible(nsIContent* aContent, nsDocAccessible* aDoc) :
     235               0 :   nsAccessibleWrap(aContent, aDoc)
     236                 : {
     237               0 : }
     238                 : 
     239                 : role
     240               0 : nsXULTabpanelAccessible::NativeRole()
     241                 : {
     242               0 :   return roles::PROPERTYPAGE;
     243                 : }
     244                 : 
     245                 : Relation
     246               0 : nsXULTabpanelAccessible::RelationByType(PRUint32 aType)
     247                 : {
     248               0 :   Relation rel = nsAccessibleWrap::RelationByType(aType);
     249               0 :   if (aType != nsIAccessibleRelation::RELATION_LABELLED_BY)
     250               0 :     return rel;
     251                 : 
     252                 :   // Expose 'LABELLED_BY' relation on tabpanel accessible for tab accessible.
     253                 :   nsCOMPtr<nsIDOMXULRelatedElement> tabpanelsElm =
     254               0 :     do_QueryInterface(mContent->GetParent());
     255               0 :   if (!tabpanelsElm)
     256                 :     return rel;
     257                 : 
     258               0 :   nsCOMPtr<nsIDOMNode> domNode(DOMNode());
     259               0 :   nsCOMPtr<nsIDOMNode> tabNode;
     260               0 :   tabpanelsElm->GetRelatedElement(domNode, getter_AddRefs(tabNode));
     261               0 :   if (!tabNode)
     262                 :     return rel;
     263                 : 
     264               0 :   nsCOMPtr<nsIContent> tabContent(do_QueryInterface(tabNode));
     265               0 :   rel.AppendTarget(tabContent);
     266                 :   return rel;
     267                 : }

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