LCOV - code coverage report
Current view: top level - editeng/source/accessibility - AccessibleContextBase.cxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 116 197 58.9 %
Date: 2014-11-03 Functions: 19 36 52.8 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <editeng/AccessibleContextBase.hxx>
      21             : 
      22             : #include <com/sun/star/accessibility/AccessibleRole.hpp>
      23             : #include <com/sun/star/beans/PropertyChangeEvent.hpp>
      24             : #include <com/sun/star/accessibility/XAccessibleEventListener.hpp>
      25             : #include <com/sun/star/accessibility/AccessibleStateType.hpp>
      26             : #include <com/sun/star/accessibility/AccessibleRelationType.hpp>
      27             : 
      28             : #include <unotools/accessiblestatesethelper.hxx>
      29             : #include <unotools/accessiblerelationsethelper.hxx>
      30             : #include <comphelper/accessibleeventnotifier.hxx>
      31             : #include <comphelper/servicehelper.hxx>
      32             : #include <cppuhelper/supportsservice.hxx>
      33             : #include <osl/mutex.hxx>
      34             : 
      35             : #include <utility>
      36             : 
      37             : using namespace ::com::sun::star;
      38             : using namespace ::com::sun::star::accessibility;
      39             : using ::com::sun::star::uno::Reference;
      40             : 
      41             : namespace accessibility {
      42             : 
      43             : //=====  internal  ============================================================
      44             : 
      45             : // Define a shortcut for the somewhot longish base class name.
      46             : typedef ::cppu::PartialWeakComponentImplHelper4<
      47             :     ::com::sun::star::accessibility::XAccessible,
      48             :     ::com::sun::star::accessibility::XAccessibleContext,
      49             :     ::com::sun::star::accessibility::XAccessibleEventBroadcaster,
      50             :     ::com::sun::star::lang::XServiceInfo> BaseClass;
      51             : 
      52          28 : AccessibleContextBase::AccessibleContextBase (
      53             :         const uno::Reference<XAccessible>& rxParent,
      54             :         const sal_Int16 aRole)
      55             :     :   BaseClass (MutexOwner::maMutex),
      56             :         mxStateSet (NULL),
      57             :         mxRelationSet (NULL),
      58             :         mxParent(rxParent),
      59             :         msDescription(),
      60             :         meDescriptionOrigin(NotSet),
      61             :         msName(),
      62             :         meNameOrigin(NotSet),
      63             :         mnClientId(0),
      64          28 :         maRole(aRole)
      65             : {
      66             :     // Create the state set.
      67          28 :     ::utl::AccessibleStateSetHelper* pStateSet  = new ::utl::AccessibleStateSetHelper ();
      68          28 :     mxStateSet = pStateSet;
      69             : 
      70             :     // Set some states.  Don't use the SetState method because no events
      71             :     // shall be broadcastet (that is not yet initialized anyway).
      72          28 :     if (pStateSet != NULL)
      73             :     {
      74          28 :         pStateSet->AddState (AccessibleStateType::ENABLED);
      75          28 :         pStateSet->AddState (AccessibleStateType::SENSITIVE);
      76          28 :         pStateSet->AddState (AccessibleStateType::SHOWING);
      77          28 :         pStateSet->AddState (AccessibleStateType::VISIBLE);
      78          28 :         pStateSet->AddState (AccessibleStateType::FOCUSABLE);
      79          28 :         pStateSet->AddState (AccessibleStateType::SELECTABLE);
      80             :     }
      81             : 
      82             :     // Create the relation set.
      83          28 :     ::utl::AccessibleRelationSetHelper* pRelationSet = new ::utl::AccessibleRelationSetHelper ();
      84          28 :     mxRelationSet = pRelationSet;
      85          28 : }
      86             : 
      87             : 
      88             : 
      89             : 
      90          28 : AccessibleContextBase::~AccessibleContextBase(void)
      91             : {
      92          28 : }
      93             : 
      94             : 
      95             : 
      96             : 
      97          56 : bool AccessibleContextBase::SetState (sal_Int16 aState)
      98             : {
      99          56 :     ::osl::ClearableMutexGuard aGuard (maMutex);
     100             :     ::utl::AccessibleStateSetHelper* pStateSet =
     101          56 :         static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
     102          56 :     if ((pStateSet != NULL) && !pStateSet->contains(aState))
     103             :     {
     104          14 :         pStateSet->AddState (aState);
     105             :         // Clear the mutex guard so that it is not locked during calls to
     106             :         // listeners.
     107          14 :         aGuard.clear();
     108             : 
     109             :         // Send event for all states except the DEFUNC state.
     110          14 :         if (aState != AccessibleStateType::DEFUNC)
     111             :         {
     112           8 :             uno::Any aNewValue;
     113           8 :             aNewValue <<= aState;
     114             :             CommitChange(
     115             :                 AccessibleEventId::STATE_CHANGED,
     116             :                 aNewValue,
     117           8 :                 uno::Any());
     118             :         }
     119          14 :         return true;
     120             :     }
     121             :     else
     122          42 :         return false;
     123             : }
     124             : 
     125             : 
     126             : 
     127             : 
     128           0 : bool AccessibleContextBase::ResetState (sal_Int16 aState)
     129             : {
     130           0 :     ::osl::ClearableMutexGuard aGuard (maMutex);
     131             :     ::utl::AccessibleStateSetHelper* pStateSet =
     132           0 :         static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
     133           0 :     if ((pStateSet != NULL) && pStateSet->contains(aState))
     134             :     {
     135           0 :         pStateSet->RemoveState (aState);
     136             :         // Clear the mutex guard so that it is not locked during calls to listeners.
     137           0 :         aGuard.clear();
     138             : 
     139           0 :         uno::Any aOldValue;
     140           0 :         aOldValue <<= aState;
     141             :         CommitChange(
     142             :             AccessibleEventId::STATE_CHANGED,
     143             :             uno::Any(),
     144           0 :             aOldValue);
     145           0 :         return true;
     146             :     }
     147             :     else
     148           0 :         return false;
     149             : }
     150             : 
     151             : 
     152             : 
     153             : 
     154           0 : bool AccessibleContextBase::GetState (sal_Int16 aState)
     155             : {
     156           0 :     ::osl::MutexGuard aGuard (maMutex);
     157             :     ::utl::AccessibleStateSetHelper* pStateSet =
     158           0 :         static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
     159           0 :     if (pStateSet != NULL)
     160           0 :         return pStateSet->contains(aState);
     161             :     else
     162             :         // If there is no state set then return false as a default value.
     163           0 :         return false;
     164             : }
     165             : 
     166             : 
     167             : 
     168             : 
     169           0 : void AccessibleContextBase::SetRelationSet (
     170             :     const uno::Reference<XAccessibleRelationSet>& rxNewRelationSet)
     171             :     throw (::com::sun::star::uno::RuntimeException)
     172             : {
     173             :     OSL_TRACE ("setting relation set");
     174             : 
     175             :     // Try to emit some meaningfull events indicating differing relations in
     176             :     // both sets.
     177             :     typedef std::pair<short int,short int> RD;
     178             :     const RD aRelationDescriptors[] = {
     179             :         RD(AccessibleRelationType::CONTROLLED_BY, AccessibleEventId::CONTROLLED_BY_RELATION_CHANGED),
     180             :         RD(AccessibleRelationType::CONTROLLER_FOR, AccessibleEventId::CONTROLLER_FOR_RELATION_CHANGED),
     181             :         RD(AccessibleRelationType::LABELED_BY, AccessibleEventId::LABELED_BY_RELATION_CHANGED),
     182             :         RD(AccessibleRelationType::LABEL_FOR, AccessibleEventId::LABEL_FOR_RELATION_CHANGED),
     183             :         RD(AccessibleRelationType::MEMBER_OF, AccessibleEventId::MEMBER_OF_RELATION_CHANGED),
     184             :         RD(AccessibleRelationType::INVALID, -1),
     185           0 :     };
     186           0 :     for (int i=0; aRelationDescriptors[i].first!=AccessibleRelationType::INVALID; i++)
     187           0 :         if (mxRelationSet->containsRelation(aRelationDescriptors[i].first)
     188           0 :         != rxNewRelationSet->containsRelation(aRelationDescriptors[i].first))
     189           0 :         CommitChange (aRelationDescriptors[i].second, uno::Any(), uno::Any());
     190             : 
     191           0 :     mxRelationSet = rxNewRelationSet;
     192           0 : }
     193             : 
     194             : 
     195             : 
     196             : 
     197             : //=====  XAccessible  =========================================================
     198             : 
     199             : uno::Reference< XAccessibleContext> SAL_CALL
     200         118 :     AccessibleContextBase::getAccessibleContext (void)
     201             :     throw (uno::RuntimeException, std::exception)
     202             : {
     203         118 :     ThrowIfDisposed ();
     204         118 :     return this;
     205             : }
     206             : 
     207             : 
     208             : 
     209             : 
     210             : //=====  XAccessibleContext  ==================================================
     211             : 
     212             : /** No children.
     213             : */
     214             : sal_Int32 SAL_CALL
     215           0 :        AccessibleContextBase::getAccessibleChildCount (void)
     216             :     throw (uno::RuntimeException, std::exception)
     217             : {
     218           0 :     ThrowIfDisposed ();
     219           0 :     return 0;
     220             : }
     221             : 
     222             : 
     223             : 
     224             : 
     225             : /** Forward the request to the shape.  Return the requested shape or throw
     226             :     an exception for a wrong index.
     227             : */
     228             : uno::Reference<XAccessible> SAL_CALL
     229           0 :     AccessibleContextBase::getAccessibleChild (sal_Int32 nIndex)
     230             :     throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception)
     231             : {
     232           0 :     ThrowIfDisposed ();
     233             :     throw lang::IndexOutOfBoundsException (
     234           0 :         "no child with index " + OUString(nIndex),
     235           0 :         NULL);
     236             : }
     237             : 
     238             : 
     239             : 
     240             : 
     241             : uno::Reference<XAccessible> SAL_CALL
     242         556 :        AccessibleContextBase::getAccessibleParent (void)
     243             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     244             : {
     245         556 :     ThrowIfDisposed ();
     246         556 :     return mxParent;
     247             : }
     248             : 
     249             : 
     250             : 
     251             : 
     252             : sal_Int32 SAL_CALL
     253           2 :        AccessibleContextBase::getAccessibleIndexInParent (void)
     254             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     255             : {
     256           2 :     ThrowIfDisposed ();
     257             :     //  Use a simple but slow solution for now.  Optimize later.
     258             : 
     259             :     //  Iterate over all the parent's children and search for this object.
     260           2 :     if (mxParent.is())
     261             :     {
     262             :         uno::Reference<XAccessibleContext> xParentContext (
     263           2 :             mxParent->getAccessibleContext());
     264           2 :         if (xParentContext.is())
     265             :         {
     266           2 :             sal_Int32 nChildCount = xParentContext->getAccessibleChildCount();
     267           2 :             for (sal_Int32 i=0; i<nChildCount; i++)
     268             :             {
     269           2 :                 uno::Reference<XAccessible> xChild (xParentContext->getAccessibleChild (i));
     270           2 :                 if (xChild.is())
     271             :                 {
     272           2 :                     uno::Reference<XAccessibleContext> xChildContext = xChild->getAccessibleContext();
     273           2 :                     if (xChildContext == (XAccessibleContext*)this)
     274           2 :                         return i;
     275             :                 }
     276           0 :             }
     277           0 :         }
     278             :    }
     279             : 
     280             :    //   Return -1 to indicate that this object's parent does not know about the
     281             :    //   object.
     282           0 :    return -1;
     283             : }
     284             : 
     285             : 
     286             : 
     287             : 
     288             : sal_Int16 SAL_CALL
     289          52 :     AccessibleContextBase::getAccessibleRole (void)
     290             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     291             : {
     292          52 :     ThrowIfDisposed ();
     293          52 :     return maRole;
     294             : }
     295             : 
     296             : 
     297             : 
     298             : 
     299             : OUString SAL_CALL
     300          26 :        AccessibleContextBase::getAccessibleDescription (void)
     301             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     302             : {
     303          26 :     ThrowIfDisposed ();
     304             : 
     305          26 :     return msDescription;
     306             : }
     307             : 
     308             : 
     309             : 
     310             : 
     311             : OUString SAL_CALL
     312           0 :        AccessibleContextBase::getAccessibleName (void)
     313             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     314             : {
     315           0 :     ThrowIfDisposed ();
     316             : 
     317           0 :     if (meNameOrigin == NotSet)
     318             :     {
     319             :         // Do not send an event because this is the first time it has been
     320             :         // requested.
     321           0 :         msName = CreateAccessibleName();
     322           0 :         meNameOrigin = AutomaticallyCreated;
     323             :     }
     324             : 
     325           0 :     return msName;
     326             : }
     327             : 
     328             : 
     329             : 
     330             : 
     331             : /** Return a copy of the relation set.
     332             : */
     333             : uno::Reference<XAccessibleRelationSet> SAL_CALL
     334           2 :        AccessibleContextBase::getAccessibleRelationSet (void)
     335             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     336             : {
     337           2 :     ThrowIfDisposed ();
     338             : 
     339             :     // Create a copy of the relation set and return it.
     340             :     ::utl::AccessibleRelationSetHelper* pRelationSet =
     341           2 :         static_cast< ::utl::AccessibleRelationSetHelper*>(mxRelationSet.get());
     342           2 :     if (pRelationSet != NULL)
     343             :     {
     344             :         return uno::Reference<XAccessibleRelationSet> (
     345           2 :             new ::utl::AccessibleRelationSetHelper (*pRelationSet));
     346             :     }
     347             :     else
     348           0 :         return uno::Reference<XAccessibleRelationSet>(NULL);
     349             : }
     350             : 
     351             : 
     352             : 
     353             : 
     354             : /** Return a copy of the state set.
     355             :     Possible states are:
     356             :         ENABLED
     357             :         SHOWING
     358             :         VISIBLE
     359             : */
     360             : uno::Reference<XAccessibleStateSet> SAL_CALL
     361          26 :     AccessibleContextBase::getAccessibleStateSet (void)
     362             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     363             : {
     364          26 :     ::utl::AccessibleStateSetHelper* pStateSet = NULL;
     365             : 
     366          26 :     if (rBHelper.bDisposed)
     367             :     {
     368             :         // We are already disposed!
     369             :         // Create a new state set that has only set the DEFUNC state.
     370           0 :         pStateSet = new ::utl::AccessibleStateSetHelper ();
     371           0 :         if (pStateSet != NULL)
     372           0 :             pStateSet->AddState (AccessibleStateType::DEFUNC);
     373             :     }
     374             :     else
     375             :     {
     376             :         // Create a copy of the state set and return it.
     377          26 :         pStateSet = static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
     378             : 
     379             :         // Merge current focused state from edit engine.
     380             : #if 0
     381             :         if (aState == AccessibleStateType::FOCUSED
     382             :             && pStateSet != NULL
     383             :             && mpText != NULL)
     384             :         {
     385             :             if (mpText->GetFocusedState ())
     386             :                 pStateSet->AddState (aState);
     387             :             else
     388             :                 pStateSet->RemoveState (aState);
     389             :         }
     390             : #endif
     391          26 :         if (pStateSet != NULL)
     392          26 :             pStateSet = new ::utl::AccessibleStateSetHelper (*pStateSet);
     393             :     }
     394             : 
     395          26 :     return uno::Reference<XAccessibleStateSet>(pStateSet);
     396             : }
     397             : 
     398             : 
     399             : 
     400             : 
     401             : lang::Locale SAL_CALL
     402           6 :        AccessibleContextBase::getLocale (void)
     403             :     throw (IllegalAccessibleComponentStateException,
     404             :         ::com::sun::star::uno::RuntimeException, std::exception)
     405             : {
     406           6 :     ThrowIfDisposed ();
     407             :     // Delegate request to parent.
     408           6 :     if (mxParent.is())
     409             :     {
     410             :         uno::Reference<XAccessibleContext> xParentContext (
     411           6 :             mxParent->getAccessibleContext());
     412           6 :         if (xParentContext.is())
     413          12 :             return xParentContext->getLocale ();
     414             :     }
     415             : 
     416             :     //  No locale and no parent.  Therefore throw exception to indicate this
     417             :     //  cluelessness.
     418           0 :     throw IllegalAccessibleComponentStateException ();
     419             : }
     420             : 
     421             : 
     422             : 
     423             : 
     424             : //=====  XAccessibleEventListener  ============================================
     425             : 
     426           4 : void SAL_CALL AccessibleContextBase::addAccessibleEventListener (
     427             :         const uno::Reference<XAccessibleEventListener >& rxListener)
     428             :     throw (uno::RuntimeException, std::exception)
     429             : {
     430           4 :     if (rxListener.is())
     431             :     {
     432           4 :         if (rBHelper.bDisposed || rBHelper.bInDispose)
     433             :         {
     434           0 :             uno::Reference<uno::XInterface> x ((lang::XComponent *)this, uno::UNO_QUERY);
     435           0 :             rxListener->disposing (lang::EventObject (x));
     436             :         }
     437             :         else
     438             :         {
     439           4 :             if (!mnClientId)
     440           4 :                 mnClientId = comphelper::AccessibleEventNotifier::registerClient( );
     441           4 :             comphelper::AccessibleEventNotifier::addEventListener( mnClientId, rxListener );
     442             :         }
     443             :     }
     444           4 : }
     445             : 
     446             : 
     447             : 
     448             : 
     449           4 : void SAL_CALL AccessibleContextBase::removeAccessibleEventListener (
     450             :         const uno::Reference<XAccessibleEventListener >& rxListener )
     451             :     throw (uno::RuntimeException, std::exception)
     452             : {
     453           4 :     ThrowIfDisposed ();
     454           4 :     if (rxListener.is())
     455             :     {
     456           4 :         sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( mnClientId, rxListener );
     457           4 :         if ( !nListenerCount )
     458             :         {
     459             :             // no listeners anymore
     460             :             // -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
     461             :             // and at least to us not firing any events anymore, in case somebody calls
     462             :             // NotifyAccessibleEvent, again
     463           4 :             comphelper::AccessibleEventNotifier::revokeClient( mnClientId );
     464           4 :             mnClientId = 0;
     465             :         }
     466             :     }
     467           4 : }
     468             : 
     469             : //=====  XServiceInfo  ========================================================
     470           0 : OUString SAL_CALL AccessibleContextBase::getImplementationName (void)
     471             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     472             : {
     473           0 :     ThrowIfDisposed ();
     474           0 :     return OUString("AccessibleContextBase");
     475             : }
     476             : 
     477           0 : sal_Bool SAL_CALL AccessibleContextBase::supportsService (const OUString& sServiceName)
     478             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     479             : {
     480           0 :     return cppu::supportsService(this, sServiceName);
     481             : }
     482             : 
     483             : uno::Sequence< OUString > SAL_CALL
     484           0 :        AccessibleContextBase::getSupportedServiceNames (void)
     485             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     486             : {
     487           0 :     ThrowIfDisposed ();
     488             :     static const OUString sServiceNames[2] = {
     489             :             OUString("com.sun.star.accessibility.Accessible"),
     490             :             OUString("com.sun.star.accessibility.AccessibleContext")
     491           0 :     };
     492           0 :     return uno::Sequence<OUString> (sServiceNames, 2);
     493             : }
     494             : 
     495             : 
     496             : 
     497             : 
     498             : //=====  XTypeProvider  =======================================================
     499             : 
     500             : uno::Sequence< ::com::sun::star::uno::Type>
     501           0 :     AccessibleContextBase::getTypes (void)
     502             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     503             : {
     504           0 :     ThrowIfDisposed ();
     505             : 
     506             :     // This class supports no interfaces on its own.  Just return those
     507             :     // supported by the base class.
     508           0 :     return BaseClass::getTypes();
     509             : }
     510             : 
     511             : uno::Sequence<sal_Int8> SAL_CALL
     512           0 :     AccessibleContextBase::getImplementationId (void)
     513             :     throw (::com::sun::star::uno::RuntimeException, std::exception)
     514             : {
     515           0 :     return css::uno::Sequence<sal_Int8>();
     516             : }
     517             : 
     518             : //=====  internal  ============================================================
     519             : 
     520           6 : void SAL_CALL AccessibleContextBase::disposing (void)
     521             : {
     522           6 :     SetState (AccessibleStateType::DEFUNC);
     523             : 
     524           6 :     ::osl::MutexGuard aGuard (maMutex);
     525             : 
     526             :     // Send a disposing to all listeners.
     527           6 :     if ( mnClientId )
     528             :     {
     529           0 :         comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( mnClientId, *this );
     530           0 :         mnClientId =  0;
     531           6 :     }
     532           6 : }
     533             : 
     534             : 
     535             : 
     536             : 
     537           0 : void AccessibleContextBase::SetAccessibleDescription (
     538             :     const OUString& rDescription,
     539             :     StringOrigin eDescriptionOrigin)
     540             :     throw (uno::RuntimeException)
     541             : {
     542           0 :     if (eDescriptionOrigin < meDescriptionOrigin
     543           0 :         || (eDescriptionOrigin == meDescriptionOrigin && msDescription != rDescription))
     544             :     {
     545           0 :         uno::Any aOldValue, aNewValue;
     546           0 :         aOldValue <<= msDescription;
     547           0 :         aNewValue <<= rDescription;
     548             : 
     549           0 :         msDescription = rDescription;
     550           0 :         meDescriptionOrigin = eDescriptionOrigin;
     551             : 
     552             :         CommitChange(
     553             :             AccessibleEventId::DESCRIPTION_CHANGED,
     554             :             aNewValue,
     555           0 :             aOldValue);
     556             :     }
     557           0 : }
     558             : 
     559             : 
     560             : 
     561             : 
     562          14 : void AccessibleContextBase::SetAccessibleName (
     563             :     const OUString& rName,
     564             :     StringOrigin eNameOrigin)
     565             :     throw (uno::RuntimeException)
     566             : {
     567          28 :     if (eNameOrigin < meNameOrigin
     568          14 :         || (eNameOrigin == meNameOrigin && msName != rName))
     569             :     {
     570          28 :         uno::Any aOldValue, aNewValue;
     571          14 :         aOldValue <<= msName;
     572          14 :         aNewValue <<= rName;
     573             : 
     574          14 :         msName = rName;
     575          14 :         meNameOrigin = eNameOrigin;
     576             : 
     577             :         CommitChange(
     578             :             AccessibleEventId::NAME_CHANGED,
     579             :             aNewValue,
     580          28 :             aOldValue);
     581             :     }
     582          14 : }
     583             : 
     584             : 
     585             : 
     586             : 
     587           0 : OUString AccessibleContextBase::CreateAccessibleDescription (void)
     588             :     throw (::com::sun::star::uno::RuntimeException)
     589             : {
     590           0 :     return OUString("Empty Description");
     591             : }
     592             : 
     593             : 
     594             : 
     595             : 
     596           0 : OUString AccessibleContextBase::CreateAccessibleName (void)
     597             :     throw (::com::sun::star::uno::RuntimeException)
     598             : {
     599           0 :     return OUString("Empty Name");
     600             : }
     601             : 
     602             : 
     603             : 
     604             : 
     605          64 : void AccessibleContextBase::CommitChange (
     606             :     sal_Int16 nEventId,
     607             :     const uno::Any& rNewValue,
     608             :     const uno::Any& rOldValue)
     609             : {
     610             :     // Do not call FireEvent and do not even create the event object when no
     611             :     // listener has been registered yet.  Creating the event object can
     612             :     // otherwise lead to a crash.  See issue 93419 for details.
     613          64 :     if (mnClientId != 0)
     614             :     {
     615             :         AccessibleEventObject aEvent (
     616             :             static_cast<XAccessibleContext*>(this),
     617             :             nEventId,
     618             :             rNewValue,
     619          22 :             rOldValue);
     620             : 
     621          22 :         FireEvent (aEvent);
     622             :     }
     623          64 : }
     624             : 
     625             : 
     626             : 
     627             : 
     628          22 : void AccessibleContextBase::FireEvent (const AccessibleEventObject& aEvent)
     629             : {
     630          22 :     if (mnClientId)
     631          22 :         comphelper::AccessibleEventNotifier::addEvent( mnClientId, aEvent );
     632          22 : }
     633             : 
     634             : 
     635             : 
     636             : 
     637        2970 : void AccessibleContextBase::ThrowIfDisposed (void)
     638             :     throw (::com::sun::star::lang::DisposedException)
     639             : {
     640        2970 :     if (rBHelper.bDisposed || rBHelper.bInDispose)
     641             :     {
     642             :         OSL_TRACE ("Calling disposed object. Throwing exception:");
     643             :         throw lang::DisposedException ("object has been already disposed",
     644           6 :             static_cast<uno::XWeak*>(this));
     645             :     }
     646        2964 : }
     647             : 
     648             : 
     649             : 
     650           4 : bool AccessibleContextBase::IsDisposed (void)
     651             : {
     652           4 :     return (rBHelper.bDisposed || rBHelper.bInDispose);
     653             : }
     654             : 
     655             : 
     656             : 
     657           0 : void AccessibleContextBase::SetAccessibleRole( sal_Int16 _nRole )
     658             : {
     659           0 :     maRole = _nRole;
     660           0 : }
     661             : 
     662             : 
     663             : } // end of namespace accessibility
     664             : 
     665             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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