accessibility/source/standard/vclxaccessiblelistitem.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   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
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  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 <accessibility/standard/vclxaccessiblelistitem.hxx>
  21 #include <toolkit/helper/convert.hxx>
  22 #include <accessibility/helper/listboxhelper.hxx>
  23 #include <com/sun/star/awt/Point.hpp>
  24 #include <com/sun/star/awt/Rectangle.hpp>
  25 #include <com/sun/star/awt/Size.hpp>
  26
  27 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
  28 #include <com/sun/star/accessibility/AccessibleRole.hpp>
  29 #include <com/sun/star/accessibility/AccessibleStateType.hpp>
  30 #include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
  31 #include <com/sun/star/datatransfer/clipboard/XFlushableClipboard.hpp>
  32 #include <cppuhelper/supportsservice.hxx>
  33 #include <vcl/svapp.hxx>
  34 #include <vcl/controllayout.hxx>
  35 #include <vcl/unohelp2.hxx>
  36 #include <vcl/settings.hxx>
  37 #include <toolkit/awt/vclxwindow.hxx>
  38 #include <unotools/accessiblestatesethelper.hxx>
  39 #include <unotools/accessiblerelationsethelper.hxx>
  40 #include <cppuhelper/typeprovider.hxx>
  41 #include <comphelper/sequence.hxx>
  42 #include <comphelper/accessibleeventnotifier.hxx>
  43
  44 namespace
  45 {
  46     void checkIndex_Impl( sal_Int32 _nIndex, const OUString& _sText ) throw (::com::sun::star::lang::IndexOutOfBoundsException)
  47     {
  48         if ( _nIndex < 0 || _nIndex > _sText.getLength() )
  49             throw ::com::sun::star::lang::IndexOutOfBoundsException();
  50     }
  51 }
  52
  53 // class VCLXAccessibleListItem ------------------------------------------
  54
  55 using namespace ::com::sun::star::accessibility;
  56 using namespace ::com::sun::star::uno;
  57 using namespace ::com::sun::star::beans;
  58 using namespace ::com::sun::star::lang;
  59 using namespace ::com::sun::star;
  60
  61
  62 // Ctor() and Dtor()
  63
  64 VCLXAccessibleListItem::VCLXAccessibleListItem( ::accessibility::IComboListBoxHelper* _pListBoxHelper, sal_Int32 _nIndexInParent, const Reference< XAccessible >& _xParent ) :
  65
  66     VCLXAccessibleListItem_BASE ( m_aMutex ),
  67
  68     m_nIndexInParent( _nIndexInParent ),
  69     m_bSelected     ( false ),
  70     m_bVisible      ( false ),
  71     m_nClientId     ( 0 ),
  72     m_pListBoxHelper( _pListBoxHelper ),
  73     m_xParent       ( _xParent )
  74
  75 {
  76     if ( m_xParent.is() )
  77         m_xParentContext = m_xParent->getAccessibleContext();
  78
  79     if ( m_pListBoxHelper )
  80         m_sEntryText = m_pListBoxHelper->GetEntry( (sal_uInt16)_nIndexInParent );
  81 }
  82
  83 VCLXAccessibleListItem::~VCLXAccessibleListItem()
  84 {
  85 }
  86
  87 void VCLXAccessibleListItem::SetSelected( bool _bSelected )
  88 {
  89     if ( m_bSelected != _bSelected )
  90     {
  91         Any aOldValue;
  92         Any aNewValue;
  93         if ( m_bSelected )
  94             aOldValue <<= AccessibleStateType::SELECTED;
  95         else
  96             aNewValue <<= AccessibleStateType::SELECTED;
  97         m_bSelected = _bSelected;
  98         NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
  99     }
 100 }
 101
 102 void VCLXAccessibleListItem::SetVisible( bool _bVisible )
 103 {
 104     if ( m_bVisible != _bVisible )
 105     {
 106         Any aOldValue, aNewValue;
 107         m_bVisible = _bVisible;
 108         (_bVisible ? aNewValue : aOldValue ) <<= AccessibleStateType::VISIBLE;
 109         NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
 110         (_bVisible ? aNewValue : aOldValue ) <<= AccessibleStateType::SHOWING;
 111         NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
 112     }
 113 }
 114
 115 void VCLXAccessibleListItem::NotifyAccessibleEvent( sal_Int16 _nEventId,
 116                                                     const ::com::sun::star::uno::Any& _aOldValue,
 117                                                     const ::com::sun::star::uno::Any& _aNewValue )
 118 {
 119     AccessibleEventObject aEvt;
 120     aEvt.Source = *this;
 121     aEvt.EventId = _nEventId;
 122     aEvt.OldValue = _aOldValue;
 123     aEvt.NewValue = _aNewValue;
 124
 125     if (m_nClientId)
 126         comphelper::AccessibleEventNotifier::addEvent( m_nClientId, aEvt );
 127 }
 128
 129 // OCommonAccessibleText
 130
 131 OUString VCLXAccessibleListItem::implGetText()
 132 {
 133     return m_sEntryText;
 134 }
 135
 136 Locale VCLXAccessibleListItem::implGetLocale()
 137 {
 138     return Application::GetSettings().GetLanguageTag().getLocale();
 139 }
 140
 141 void VCLXAccessibleListItem::implGetSelection( sal_Int32& nStartIndex, sal_Int32& nEndIndex )
 142 {
 143     nStartIndex = 0;
 144     nEndIndex = 0;
 145 }
 146
 147 // XInterface
 148
 149 Any SAL_CALL VCLXAccessibleListItem::queryInterface( Type const & rType ) throw (RuntimeException, std::exception)
 150 {
 151     return VCLXAccessibleListItem_BASE::queryInterface( rType );
 152 }
 153
 154 void SAL_CALL VCLXAccessibleListItem::acquire() throw ()
 155 {
 156     VCLXAccessibleListItem_BASE::acquire();
 157 }
 158
 159 void SAL_CALL VCLXAccessibleListItem::release() throw ()
 160 {
 161     VCLXAccessibleListItem_BASE::release();
 162 }
 163
 164 // XTypeProvider
 165
 166 Sequence< Type > SAL_CALL VCLXAccessibleListItem::getTypes(  ) throw (RuntimeException, std::exception)
 167 {
 168     return VCLXAccessibleListItem_BASE::getTypes();
 169 }
 170
 171 Sequence< sal_Int8 > VCLXAccessibleListItem::getImplementationId() throw (RuntimeException, std::exception)
 172 {
 173     return css::uno::Sequence<sal_Int8>();
 174 }
 175
 176 // XComponent
 177
 178 void SAL_CALL VCLXAccessibleListItem::disposing()
 179 {
 180     comphelper::AccessibleEventNotifier::TClientId nId( 0 );
 181     Reference< XInterface > xEventSource;
 182     {
 183         ::osl::MutexGuard aGuard( m_aMutex );
 184
 185         VCLXAccessibleListItem_BASE::disposing();
 186         m_sEntryText.clear();
 187         m_pListBoxHelper    = NULL;
 188         m_xParent           = NULL;
 189         m_xParentContext    = NULL;
 190
 191         nId = m_nClientId;
 192         m_nClientId =  0;
 193         if ( nId )
 194             xEventSource = *this;
 195     }
 196
 197     // Send a disposing to all listeners.
 198     if ( nId )
 199             comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nId, *this );
 200 }
 201
 202 // XServiceInfo
 203
 204 OUString VCLXAccessibleListItem::getImplementationName() throw (RuntimeException, std::exception)
 205 {
 206     return OUString( "com.sun.star.comp.toolkit.AccessibleListItem" );
 207 }
 208
 209 sal_Bool VCLXAccessibleListItem::supportsService( const OUString& rServiceName ) throw (RuntimeException, std::exception)
 210 {
 211     return cppu::supportsService(this, rServiceName);
 212 }
 213
 214 Sequence< OUString > VCLXAccessibleListItem::getSupportedServiceNames() throw (RuntimeException, std::exception)
 215 {
 216     Sequence< OUString > aNames(3);
 217     aNames[0] = "com.sun.star.accessibility.AccessibleContext";
 218     aNames[1] = "com.sun.star.accessibility.AccessibleComponent";
 219     aNames[2] = "com.sun.star.accessibility.AccessibleListItem";
 220     return aNames;
 221 }
 222
 223 // XAccessible
 224
 225 Reference< XAccessibleContext > SAL_CALL VCLXAccessibleListItem::getAccessibleContext(  ) throw (RuntimeException, std::exception)
 226 {
 227     return this;
 228 }
 229
 230 // XAccessibleContext
 231
 232 sal_Int32 SAL_CALL VCLXAccessibleListItem::getAccessibleChildCount(  ) throw (RuntimeException, std::exception)
 233 {
 234     return 0;
 235 }
 236
 237 Reference< XAccessible > SAL_CALL VCLXAccessibleListItem::getAccessibleChild( sal_Int32 ) throw (RuntimeException, std::exception)
 238 {
 239     return Reference< XAccessible >();
 240 }
 241
 242 Reference< XAccessible > SAL_CALL VCLXAccessibleListItem::getAccessibleParent(  ) throw (RuntimeException, std::exception)
 243 {
 244     ::osl::MutexGuard aGuard( m_aMutex );
 245
 246     return m_xParent;
 247 }
 248
 249 sal_Int32 SAL_CALL VCLXAccessibleListItem::getAccessibleIndexInParent(  ) throw (RuntimeException, std::exception)
 250 {
 251     ::osl::MutexGuard aGuard( m_aMutex );
 252     return m_nIndexInParent;
 253 }
 254
 255 sal_Int16 SAL_CALL VCLXAccessibleListItem::getAccessibleRole(  ) throw (RuntimeException, std::exception)
 256 {
 257     return AccessibleRole::LIST_ITEM;
 258     //  return AccessibleRole::LABEL;
 259 }
 260
 261 OUString SAL_CALL VCLXAccessibleListItem::getAccessibleDescription(  ) throw (RuntimeException, std::exception)
 262 {
 263     // no description for every item
 264     return OUString();
 265 }
 266
 267 OUString SAL_CALL VCLXAccessibleListItem::getAccessibleName(  ) throw (RuntimeException, std::exception)
 268 {
 269     ::osl::MutexGuard aGuard( m_aMutex );
 270
 271     // entry text == accessible name
 272     return implGetText();
 273 }
 274
 275 Reference< XAccessibleRelationSet > SAL_CALL VCLXAccessibleListItem::getAccessibleRelationSet(  ) throw (RuntimeException, std::exception)
 276 {
 277     utl::AccessibleRelationSetHelper* pRelationSetHelper = new utl::AccessibleRelationSetHelper;
 278     Reference< XAccessibleRelationSet > xSet = pRelationSetHelper;
 279     return xSet;
 280 }
 281
 282 Reference< XAccessibleStateSet > SAL_CALL VCLXAccessibleListItem::getAccessibleStateSet(  ) throw (RuntimeException, std::exception)
 283 {
 284     ::osl::MutexGuard aGuard( m_aMutex );
 285
 286     utl::AccessibleStateSetHelper* pStateSetHelper = new utl::AccessibleStateSetHelper;
 287     Reference< XAccessibleStateSet > xStateSet = pStateSetHelper;
 288
 289     if ( !rBHelper.bDisposed && !rBHelper.bInDispose )
 290     {
 291         pStateSetHelper->AddState( AccessibleStateType::TRANSIENT );
 292
 293         if(m_pListBoxHelper->IsEnabled())
 294         {
 295             pStateSetHelper->AddState( AccessibleStateType::SELECTABLE );
 296             pStateSetHelper->AddState( AccessibleStateType::ENABLED );
 297             pStateSetHelper->AddState( AccessibleStateType::SENSITIVE );
 298         }
 299
 300         if ( m_bSelected )
 301             pStateSetHelper->AddState( AccessibleStateType::SELECTED );
 302         if ( m_bVisible )
 303         {
 304             pStateSetHelper->AddState( AccessibleStateType::VISIBLE );
 305             pStateSetHelper->AddState( AccessibleStateType::SHOWING );
 306         }
 307     }
 308     else
 309         pStateSetHelper->AddState( AccessibleStateType::DEFUNC );
 310
 311     return xStateSet;
 312 }
 313
 314 Locale SAL_CALL VCLXAccessibleListItem::getLocale(  ) throw (IllegalAccessibleComponentStateException, RuntimeException, std::exception)
 315 {
 316     SolarMutexGuard aSolarGuard;
 317     ::osl::MutexGuard aGuard( m_aMutex );
 318
 319     return implGetLocale();
 320 }
 321
 322 // XAccessibleComponent
 323
 324 sal_Bool SAL_CALL VCLXAccessibleListItem::containsPoint( const awt::Point& _aPoint ) throw (RuntimeException, std::exception)
 325 {
 326     SolarMutexGuard aSolarGuard;
 327     ::osl::MutexGuard aGuard( m_aMutex );
 328
 329     bool bInside = false;
 330     if ( m_pListBoxHelper )
 331     {
 332         Rectangle aRect( m_pListBoxHelper->GetBoundingRectangle( (sal_uInt16)m_nIndexInParent ) );
 333         aRect.Move(-aRect.TopLeft().X(),-aRect.TopLeft().Y());
 334         bInside = aRect.IsInside( VCLPoint( _aPoint ) );
 335     }
 336     return bInside;
 337 }
 338
 339 Reference< XAccessible > SAL_CALL VCLXAccessibleListItem::getAccessibleAtPoint( const awt::Point& ) throw (RuntimeException, std::exception)
 340 {
 341     return Reference< XAccessible >();
 342 }
 343
 344 awt::Rectangle SAL_CALL VCLXAccessibleListItem::getBounds(  ) throw (RuntimeException, std::exception)
 345 {
 346     SolarMutexGuard aSolarGuard;
 347     ::osl::MutexGuard aGuard( m_aMutex );
 348
 349     awt::Rectangle aRect;
 350     if ( m_pListBoxHelper )
 351         aRect = AWTRectangle( m_pListBoxHelper->GetBoundingRectangle( (sal_uInt16)m_nIndexInParent ) );
 352
 353     return aRect;
 354 }
 355
 356 awt::Point SAL_CALL VCLXAccessibleListItem::getLocation(  ) throw (RuntimeException, std::exception)
 357 {
 358     SolarMutexGuard aSolarGuard;
 359     ::osl::MutexGuard aGuard( m_aMutex );
 360
 361     Point aPoint(0,0);
 362     if ( m_pListBoxHelper )
 363     {
 364         Rectangle aRect = m_pListBoxHelper->GetBoundingRectangle( (sal_uInt16)m_nIndexInParent );
 365         aPoint = aRect.TopLeft();
 366     }
 367     return AWTPoint( aPoint );
 368 }
 369
 370 awt::Point SAL_CALL VCLXAccessibleListItem::getLocationOnScreen(  ) throw (RuntimeException, std::exception)
 371 {
 372     SolarMutexGuard aSolarGuard;
 373     ::osl::MutexGuard aGuard( m_aMutex );
 374
 375     Point aPoint(0,0);
 376     if ( m_pListBoxHelper )
 377     {
 378         Rectangle aRect = m_pListBoxHelper->GetBoundingRectangle( (sal_uInt16)m_nIndexInParent );
 379         aPoint = aRect.TopLeft();
 380         aPoint += m_pListBoxHelper->GetWindowExtentsRelative( NULL ).TopLeft();
 381     }
 382     return AWTPoint( aPoint );
 383 }
 384
 385 awt::Size SAL_CALL VCLXAccessibleListItem::getSize(  ) throw (RuntimeException, std::exception)
 386 {
 387     SolarMutexGuard aSolarGuard;
 388     ::osl::MutexGuard aGuard( m_aMutex );
 389
 390     Size aSize;
 391     if ( m_pListBoxHelper )
 392         aSize = m_pListBoxHelper->GetBoundingRectangle( (sal_uInt16)m_nIndexInParent ).GetSize();
 393
 394     return AWTSize( aSize );
 395 }
 396
 397 void SAL_CALL VCLXAccessibleListItem::grabFocus(  ) throw (RuntimeException, std::exception)
 398 {
 399     // no focus for each item
 400 }
 401
 402 // XAccessibleText
 403
 404 sal_Int32 SAL_CALL VCLXAccessibleListItem::getCaretPosition() throw (RuntimeException, std::exception)
 405 {
 406     return -1;
 407 }
 408
 409 sal_Bool SAL_CALL VCLXAccessibleListItem::setCaretPosition( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
 410 {
 411     SolarMutexGuard aSolarGuard;
 412     ::osl::MutexGuard aGuard( m_aMutex );
 413
 414     if ( !implIsValidRange( nIndex, nIndex, implGetText().getLength() ) )
 415         throw IndexOutOfBoundsException();
 416
 417     return false;
 418 }
 419
 420 sal_Unicode SAL_CALL VCLXAccessibleListItem::getCharacter( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
 421 {
 422     SolarMutexGuard aSolarGuard;
 423     ::osl::MutexGuard aGuard( m_aMutex );
 424
 425     return OCommonAccessibleText::getCharacter( nIndex );
 426 }
 427
 428 Sequence< PropertyValue > SAL_CALL VCLXAccessibleListItem::getCharacterAttributes( sal_Int32 nIndex, const Sequence< OUString >& ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
 429 {
 430     SolarMutexGuard aSolarGuard;
 431     ::osl::MutexGuard aGuard( m_aMutex );
 432
 433     OUString sText( implGetText() );
 434     if ( !implIsValidIndex( nIndex, sText.getLength() ) )
 435         throw IndexOutOfBoundsException();
 436
 437     return Sequence< PropertyValue >();
 438 }
 439
 440 awt::Rectangle SAL_CALL VCLXAccessibleListItem::getCharacterBounds( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
 441 {
 442     SolarMutexGuard aSolarGuard;
 443     ::osl::MutexGuard aGuard( m_aMutex );
 444
 445     OUString sText( implGetText() );
 446     if ( !implIsValidIndex( nIndex, sText.getLength() ) )
 447         throw IndexOutOfBoundsException();
 448
 449     awt::Rectangle aBounds( 0, 0, 0, 0 );
 450     if ( m_pListBoxHelper )
 451     {
 452         Rectangle aCharRect = m_pListBoxHelper->GetEntryCharacterBounds( m_nIndexInParent, nIndex );
 453         Rectangle aItemRect = m_pListBoxHelper->GetBoundingRectangle( (sal_uInt16)m_nIndexInParent );
 454         aCharRect.Move( -aItemRect.Left(), -aItemRect.Top() );
 455         aBounds = AWTRectangle( aCharRect );
 456     }
 457
 458     return aBounds;
 459 }
 460
 461 sal_Int32 SAL_CALL VCLXAccessibleListItem::getCharacterCount() throw (RuntimeException, std::exception)
 462 {
 463     SolarMutexGuard aSolarGuard;
 464     ::osl::MutexGuard aGuard( m_aMutex );
 465
 466     return OCommonAccessibleText::getCharacterCount();
 467 }
 468
 469 sal_Int32 SAL_CALL VCLXAccessibleListItem::getIndexAtPoint( const awt::Point& aPoint ) throw (RuntimeException, std::exception)
 470 {
 471     SolarMutexGuard aSolarGuard;
 472     ::osl::MutexGuard aGuard( m_aMutex );
 473
 474     sal_Int32 nIndex = -1;
 475     if ( m_pListBoxHelper )
 476     {
 477         sal_Int32 nPos = LISTBOX_ENTRY_NOTFOUND;
 478         Rectangle aItemRect = m_pListBoxHelper->GetBoundingRectangle( (sal_uInt16)m_nIndexInParent );
 479         Point aPnt( VCLPoint( aPoint ) );
 480         aPnt += aItemRect.TopLeft();
 481         sal_Int32 nI = m_pListBoxHelper->GetIndexForPoint( aPnt, nPos );
 482         if ( nI != -1 && m_nIndexInParent == nPos )
 483             nIndex = nI;
 484     }
 485     return nIndex;
 486 }
 487
 488 OUString SAL_CALL VCLXAccessibleListItem::getSelectedText() throw (RuntimeException, std::exception)
 489 {
 490     SolarMutexGuard aSolarGuard;
 491     ::osl::MutexGuard aGuard( m_aMutex );
 492
 493     return OCommonAccessibleText::getSelectedText();
 494 }
 495
 496 sal_Int32 SAL_CALL VCLXAccessibleListItem::getSelectionStart() throw (RuntimeException, std::exception)
 497 {
 498     SolarMutexGuard aSolarGuard;
 499     ::osl::MutexGuard aGuard( m_aMutex );
 500
 501     return OCommonAccessibleText::getSelectionStart();
 502 }
 503
 504 sal_Int32 SAL_CALL VCLXAccessibleListItem::getSelectionEnd() throw (RuntimeException, std::exception)
 505 {
 506     SolarMutexGuard aSolarGuard;
 507     ::osl::MutexGuard aGuard( m_aMutex );
 508
 509     return OCommonAccessibleText::getSelectionEnd();
 510 }
 511
 512 sal_Bool SAL_CALL VCLXAccessibleListItem::setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
 513 {
 514     SolarMutexGuard aSolarGuard;
 515     ::osl::MutexGuard aGuard( m_aMutex );
 516
 517     if ( !implIsValidRange( nStartIndex, nEndIndex, implGetText().getLength() ) )
 518         throw IndexOutOfBoundsException();
 519
 520     return false;
 521 }
 522
 523 OUString SAL_CALL VCLXAccessibleListItem::getText() throw (RuntimeException, std::exception)
 524 {
 525     SolarMutexGuard aSolarGuard;
 526     ::osl::MutexGuard aGuard( m_aMutex );
 527
 528     return OCommonAccessibleText::getText();
 529 }
 530
 531 OUString SAL_CALL VCLXAccessibleListItem::getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
 532 {
 533     SolarMutexGuard aSolarGuard;
 534     ::osl::MutexGuard aGuard( m_aMutex );
 535
 536     return OCommonAccessibleText::getTextRange( nStartIndex, nEndIndex );
 537 }
 538
 539 ::com::sun::star::accessibility::TextSegment SAL_CALL VCLXAccessibleListItem::getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception)
 540 {
 541     SolarMutexGuard aSolarGuard;
 542     ::osl::MutexGuard aGuard( m_aMutex );
 543
 544     return OCommonAccessibleText::getTextAtIndex( nIndex, aTextType );
 545 }
 546
 547 ::com::sun::star::accessibility::TextSegment SAL_CALL VCLXAccessibleListItem::getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception)
 548 {
 549     SolarMutexGuard aSolarGuard;
 550     ::osl::MutexGuard aGuard( m_aMutex );
 551
 552     return OCommonAccessibleText::getTextBeforeIndex( nIndex, aTextType );
 553 }
 554
 555 ::com::sun::star::accessibility::TextSegment SAL_CALL VCLXAccessibleListItem::getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception)
 556 {
 557     SolarMutexGuard aSolarGuard;
 558     ::osl::MutexGuard aGuard( m_aMutex );
 559
 560     return OCommonAccessibleText::getTextBehindIndex( nIndex, aTextType );
 561 }
 562
 563 sal_Bool SAL_CALL VCLXAccessibleListItem::copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
 564 {
 565     SolarMutexGuard aSolarGuard;
 566     ::osl::MutexGuard aGuard( m_aMutex );
 567
 568     checkIndex_Impl( nStartIndex, m_sEntryText );
 569     checkIndex_Impl( nEndIndex, m_sEntryText );
 570
 571     bool bRet = false;
 572     if ( m_pListBoxHelper )
 573     {
 574         Reference< datatransfer::clipboard::XClipboard > xClipboard = m_pListBoxHelper->GetClipboard();
 575         if ( xClipboard.is() )
 576         {
 577             OUString sText( getTextRange( nStartIndex, nEndIndex ) );
 578             vcl::unohelper::TextDataObject* pDataObj = new vcl::unohelper::TextDataObject( sText );
 579
 580             SolarMutexReleaser aReleaser;
 581             xClipboard->setContents( pDataObj, NULL );
 582             Reference< datatransfer::clipboard::XFlushableClipboard > xFlushableClipboard( xClipboard, uno::UNO_QUERY );
 583             if( xFlushableClipboard.is() )
 584                 xFlushableClipboard->flushClipboard();
 585
 586             bRet = true;
 587         }
 588     }
 589
 590     return bRet;
 591 }
 592
 593 // XAccessibleEventBroadcaster
 594
 595 void SAL_CALL VCLXAccessibleListItem::addAccessibleEventListener( const Reference< XAccessibleEventListener >& xListener ) throw (RuntimeException, std::exception)
 596 {
 597     if (xListener.is())
 598     {
 599         if (!m_nClientId)
 600             m_nClientId = comphelper::AccessibleEventNotifier::registerClient( );
 601         comphelper::AccessibleEventNotifier::addEventListener( m_nClientId, xListener );
 602     }
 603 }
 604
 605 void SAL_CALL VCLXAccessibleListItem::removeAccessibleEventListener( const Reference< XAccessibleEventListener >& xListener ) throw (RuntimeException, std::exception)
 606 {
 607     if ( xListener.is() && m_nClientId )
 608     {
 609         sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( m_nClientId, xListener );
 610         if ( !nListenerCount )
 611         {
 612             // no listeners anymore
 613             // -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
 614             // and at least to us not firing any events anymore, in case somebody calls
 615             // NotifyAccessibleEvent, again
 616             if ( m_nClientId )
 617             {
 618                 comphelper::AccessibleEventNotifier::TClientId nId( m_nClientId );
 619                 m_nClientId = 0;
 620                 comphelper::AccessibleEventNotifier::revokeClient( nId );
 621             }
 622         }
 623     }
 624 }
 625
 626
 627
 628
 629 // AF (Oct. 29 2002): Return black as constant foreground color.  This is an
 630 // initial implementation and has to be substituted by code that determines
 631 // the color that is actually used.
 632 sal_Int32 SAL_CALL VCLXAccessibleListItem::getForeground()
 633     throw (::com::sun::star::uno::RuntimeException, std::exception)
 634 {
 635     return COL_BLACK;
 636 }
 637
 638 // AF (Oct. 29 2002): Return white as constant background color.  This is an
 639 // initial implementation and has to be substituted by code that determines
 640 // the color that is actually used.
 641 sal_Int32 SAL_CALL VCLXAccessibleListItem::getBackground()
 642     throw (::com::sun::star::uno::RuntimeException, std::exception)
 643 {
 644     return COL_WHITE;
 645 }
 646
 647
 648 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */