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21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_accessibility.hxx"
26 #include <accessibility/standard/vclxaccessiblebox.hxx>
27 #include <accessibility/standard/vclxaccessibletextfield.hxx>
28 #include <accessibility/standard/vclxaccessibleedit.hxx>
29 #include <accessibility/standard/vclxaccessiblelist.hxx>
30 #include <accessibility/helper/listboxhelper.hxx>
31
32 #include <unotools/accessiblestatesethelper.hxx>
33 #include <com/sun/star/accessibility/AccessibleStateType.hpp>
34 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
35 #include <com/sun/star/accessibility/AccessibleRole.hpp>
36 #include <vcl/svapp.hxx>
37 #include <vcl/combobox.hxx>
38 #include <vcl/lstbox.hxx>
39 #include <accessibility/helper/accresmgr.hxx>
40 #include <accessibility/helper/accessiblestrings.hrc>
41
42 using namespace ::com::sun::star;
43 using namespace ::com::sun::star::uno;
44 using namespace ::com::sun::star::lang;
45 using namespace ::com::sun::star::beans;
46 using namespace ::com::sun::star::accessibility;
47
VCLXAccessibleBox(VCLXWindow * pVCLWindow,BoxType aType,bool bIsDropDownBox)48 VCLXAccessibleBox::VCLXAccessibleBox (VCLXWindow* pVCLWindow, BoxType aType, bool bIsDropDownBox)
49 : VCLXAccessibleComponent (pVCLWindow),
50 m_aBoxType (aType),
51 m_bIsDropDownBox (bIsDropDownBox),
52 m_nIndexInParent (DEFAULT_INDEX_IN_PARENT)
53 {
54 // Set up the flags that indicate which children this object has.
55 m_bHasListChild = true;
56
57 // A text field is not present for non drop down list boxes.
58 if ((m_aBoxType==LISTBOX) && ! m_bIsDropDownBox)
59 m_bHasTextChild = false;
60 else
61 m_bHasTextChild = true;
62 }
63
~VCLXAccessibleBox(void)64 VCLXAccessibleBox::~VCLXAccessibleBox (void)
65 {
66 }
67
ProcessWindowChildEvent(const VclWindowEvent & rVclWindowEvent)68 void VCLXAccessibleBox::ProcessWindowChildEvent( const VclWindowEvent& rVclWindowEvent )
69 {
70 uno::Any aOldValue, aNewValue;
71 uno::Reference<XAccessible> xAcc;
72
73 switch ( rVclWindowEvent.GetId() )
74 {
75 case VCLEVENT_WINDOW_SHOW:
76 case VCLEVENT_WINDOW_HIDE:
77 {
78 Window* pChildWindow = (Window *) rVclWindowEvent.GetData();
79 // Just compare to the combo box text field. All other children
80 // are identical to this object in which case this object will
81 // be removed in a short time.
82 if (m_aBoxType==COMBOBOX)
83 {
84 ComboBox* pComboBox = static_cast<ComboBox*>(GetWindow());
85 if ( ( pComboBox != NULL ) && ( pChildWindow != NULL ) )
86 if (pChildWindow == pComboBox->GetSubEdit())
87 {
88 if (rVclWindowEvent.GetId() == VCLEVENT_WINDOW_SHOW)
89 {
90 // Instantiate text field.
91 getAccessibleChild (0);
92 aNewValue <<= m_xText;
93 }
94 else
95 {
96 // Release text field.
97 aOldValue <<= m_xText;
98 m_xText = NULL;
99 }
100 // Tell the listeners about the new/removed child.
101 NotifyAccessibleEvent (
102 AccessibleEventId::CHILD,
103 aOldValue, aNewValue);
104 }
105
106 }
107 }
108 break;
109
110 default:
111 VCLXAccessibleComponent::ProcessWindowChildEvent (rVclWindowEvent);
112 }
113 }
114
ProcessWindowEvent(const VclWindowEvent & rVclWindowEvent)115 void VCLXAccessibleBox::ProcessWindowEvent (const VclWindowEvent& rVclWindowEvent)
116 {
117 switch ( rVclWindowEvent.GetId() )
118 {
119 case VCLEVENT_DROPDOWN_SELECT:
120 case VCLEVENT_LISTBOX_SELECT:
121 case VCLEVENT_LISTBOX_FOCUSITEMCHANGED:
122
123 {
124 // Forward the call to the list child.
125 VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
126 if ( pList == NULL )
127 {
128 getAccessibleChild ( m_bHasTextChild ? 1 : 0 );
129 pList = static_cast<VCLXAccessibleList*>(m_xList.get());
130 }
131 if ( pList != NULL )
132 {
133 pList->ProcessWindowEvent (rVclWindowEvent, m_bIsDropDownBox);
134 if(m_bIsDropDownBox)
135 {
136 NotifyAccessibleEvent(AccessibleEventId::VALUE_CHANGED, Any(), Any());
137 Any aOldValue;
138 Any aNewValue;
139 aOldValue <<= AccessibleStateType::INDETERMINATE;
140 NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue);
141
142 }
143 }
144 break;
145 }
146 case VCLEVENT_DROPDOWN_OPEN:
147 {
148 VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
149 if ( pList == NULL )
150 {
151 getAccessibleChild ( m_bHasTextChild ? 1 : 0 );
152 pList = static_cast<VCLXAccessibleList*>(m_xList.get());
153 }
154 if ( pList != NULL )
155 {
156 pList->ProcessWindowEvent (rVclWindowEvent);
157 pList->HandleDropOpen();
158 }
159 break;
160 }
161 case VCLEVENT_DROPDOWN_CLOSE:
162 {
163 VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
164 if ( pList == NULL )
165 {
166 getAccessibleChild ( m_bHasTextChild ? 1 : 0 );
167 pList = static_cast<VCLXAccessibleList*>(m_xList.get());
168 }
169 if ( pList != NULL )
170 {
171 pList->ProcessWindowEvent (rVclWindowEvent);
172 }
173 Window* pWindow = GetWindow();
174 if( pWindow && (pWindow->HasFocus() || pWindow->HasChildPathFocus()) )
175 {
176 Any aOldValue, aNewValue;
177 aNewValue <<= AccessibleStateType::FOCUSED;
178 NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
179 }
180 break;
181 }
182 case VCLEVENT_COMBOBOX_SELECT:
183 {
184 VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
185 if (pList != NULL && m_xText.is())
186 {
187 Reference<XAccessibleText> xText (m_xText->getAccessibleContext(), UNO_QUERY);
188 if ( xText.is() )
189 {
190 ::rtl::OUString sText = xText->getSelectedText();
191 if ( sText.isEmpty() )
192 sText = xText->getText();
193 pList->UpdateSelection_Acc (sText, m_bIsDropDownBox);
194 //if(m_bIsDropDownBox && !pList->IsInDropDown())
195 if (m_bIsDropDownBox || ( !m_bIsDropDownBox && m_aBoxType==COMBOBOX))
196 NotifyAccessibleEvent(AccessibleEventId::VALUE_CHANGED, Any(), Any());
197
198 Any aOldValue;
199 Any aNewValue;
200 aOldValue <<= AccessibleStateType::INDETERMINATE;
201 NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue);
202
203 }
204 }
205 break;
206 }
207 //case VCLEVENT_DROPDOWN_OPEN:
208 //case VCLEVENT_DROPDOWN_CLOSE:
209 case VCLEVENT_LISTBOX_DOUBLECLICK:
210 case VCLEVENT_LISTBOX_SCROLLED:
211 //case VCLEVENT_LISTBOX_SELECT:
212 case VCLEVENT_LISTBOX_ITEMADDED:
213 case VCLEVENT_LISTBOX_ITEMREMOVED:
214 case VCLEVENT_COMBOBOX_ITEMADDED:
215 case VCLEVENT_COMBOBOX_ITEMREMOVED:
216 case VCLEVENT_COMBOBOX_SCROLLED:
217 {
218 // Forward the call to the list child.
219 VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
220 if ( pList == NULL )
221 {
222 getAccessibleChild ( m_bHasTextChild ? 1 : 0 );
223 pList = static_cast<VCLXAccessibleList*>(m_xList.get());
224 }
225 if ( pList != NULL )
226 pList->ProcessWindowEvent (rVclWindowEvent);
227 break;
228 }
229
230 //case VCLEVENT_COMBOBOX_SELECT:
231 case VCLEVENT_COMBOBOX_DESELECT:
232 {
233 // Selection is handled by VCLXAccessibleList which operates on
234 // the same VCL object as this box does. In case of the
235 // combobox, however, we have to help the list with providing
236 // the text of the currently selected item.
237 VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
238 if (pList != NULL && m_xText.is())
239 {
240 Reference<XAccessibleText> xText (m_xText->getAccessibleContext(), UNO_QUERY);
241 if ( xText.is() )
242 {
243 ::rtl::OUString sText = xText->getSelectedText();
244 if ( sText.isEmpty() )
245 sText = xText->getText();
246 pList->UpdateSelection (sText);
247 }
248 }
249 break;
250 }
251
252 case VCLEVENT_EDIT_MODIFY:
253 case VCLEVENT_EDIT_SELECTIONCHANGED:
254 //case VCLEVENT_EDIT_CARETCHANGED:
255 // Modify/Selection events are handled by the combo box instead of
256 // directly by the edit field (Why?). Therefore, delegate this
257 // call to the edit field.
258 if (m_aBoxType==COMBOBOX)
259 {
260 if (m_xText.is())
261 {
262 Reference<XAccessibleContext> xContext = m_xText->getAccessibleContext();
263 VCLXAccessibleEdit* pEdit = static_cast<VCLXAccessibleEdit*>(xContext.get());
264 if (pEdit != NULL)
265 pEdit->ProcessWindowEvent (rVclWindowEvent);
266 }
267 }
268 break;
269 /*
270 // MT: Not sending VCLEVENT_LISTBOX_STATEUPDATE, see comment in ListBox::SelectEntryPos
271 case VCLEVENT_LISTBOX_STATEUPDATE:
272 {
273 // Need to update the INDETERMINATE state sometimes
274 if (m_bIsDropDownBox && m_aBoxType==LISTBOX)
275 {
276 sal_Int32 nSelectedEntryCount = 0;
277 ListBox* pListBox = static_cast< ListBox* >( GetWindow() );
278 if (pListBox != NULL && pListBox->GetEntryCount() > 0)
279 {
280 nSelectedEntryCount = pListBox->GetSelectEntryCount();
281 Any aOldValue;
282 Any aNewValue;
283 if ( nSelectedEntryCount == 0)
284 aNewValue <<= AccessibleStateType::INDETERMINATE;
285 else
286 aOldValue <<= AccessibleStateType::INDETERMINATE;
287 NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue);
288 }
289 }
290 break;
291 }
292 */
293 default:
294 VCLXAccessibleComponent::ProcessWindowEvent( rVclWindowEvent );
295 }
296 }
297
IMPLEMENT_FORWARD_XINTERFACE2(VCLXAccessibleBox,VCLXAccessibleComponent,VCLXAccessibleBox_BASE)298 IMPLEMENT_FORWARD_XINTERFACE2(VCLXAccessibleBox, VCLXAccessibleComponent, VCLXAccessibleBox_BASE)
299 IMPLEMENT_FORWARD_XTYPEPROVIDER2(VCLXAccessibleBox, VCLXAccessibleComponent, VCLXAccessibleBox_BASE)
300
301 //===== XAccessible =========================================================
302
303 Reference< XAccessibleContext > SAL_CALL VCLXAccessibleBox::getAccessibleContext( )
304 throw (RuntimeException)
305 {
306 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
307
308 return this;
309 }
310
311 //===== XAccessibleContext ==================================================
312
getAccessibleChildCount(void)313 sal_Int32 SAL_CALL VCLXAccessibleBox::getAccessibleChildCount (void)
314 throw (RuntimeException)
315 {
316 vos::OGuard aSolarGuard( Application::GetSolarMutex() );
317 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
318
319 // Usually a box has a text field and a list of items as its children.
320 // Non drop down list boxes have no text field. Additionally check
321 // whether the object is valid.
322 sal_Int32 nCount = 0;
323 if (IsValid())
324 nCount += (m_bHasTextChild?1:0) + (m_bHasListChild?1:0);
325 else
326 {
327 // Object not valid anymore. Release references to children.
328 m_bHasTextChild = false;
329 m_xText = NULL;
330 m_bHasListChild = false;
331 m_xList = NULL;
332 }
333
334 return nCount;
335 }
336
getAccessibleChild(sal_Int32 i)337 Reference<XAccessible> SAL_CALL VCLXAccessibleBox::getAccessibleChild (sal_Int32 i)
338 throw (IndexOutOfBoundsException, RuntimeException)
339 {
340 vos::OGuard aSolarGuard( Application::GetSolarMutex() );
341 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
342
343 if (i<0 || i>=getAccessibleChildCount())
344 throw IndexOutOfBoundsException();
345
346 Reference< XAccessible > xChild;
347 if (IsValid())
348 {
349 if (i==1 || ! m_bHasTextChild)
350 {
351 // List.
352 if ( ! m_xList.is())
353 {
354 VCLXAccessibleList* pList = new VCLXAccessibleList ( GetVCLXWindow(),
355 (m_aBoxType == LISTBOX ? VCLXAccessibleList::LISTBOX : VCLXAccessibleList::COMBOBOX),
356 this);
357 pList->SetIndexInParent (i);
358 m_xList = pList;
359 }
360 xChild = m_xList;
361 }
362 else
363 {
364 // Text Field.
365 if ( ! m_xText.is())
366 {
367 if (m_aBoxType==COMBOBOX)
368 {
369 ComboBox* pComboBox = static_cast<ComboBox*>(GetWindow());
370 if (pComboBox!=NULL && pComboBox->GetSubEdit()!=NULL)
371 //Set the edit's acc name the same as parent
372 {
373 pComboBox->GetSubEdit()->SetAccessibleName(getAccessibleName());
374 m_xText = pComboBox->GetSubEdit()->GetAccessible();
375 }
376 }
377 else if (m_bIsDropDownBox)
378 m_xText = new VCLXAccessibleTextField (GetVCLXWindow(),this);
379 }
380 xChild = m_xText;
381 }
382 }
383
384 return xChild;
385 }
386
getAccessibleRole(void)387 sal_Int16 SAL_CALL VCLXAccessibleBox::getAccessibleRole (void) throw (RuntimeException)
388 {
389 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
390
391 // Return the role <const>COMBO_BOX</const> for both VCL combo boxes and
392 // VCL list boxes in DropDown-Mode else <const>PANEL</const>.
393 // This way the Java bridge has not to handle both independently.
394 //return m_bIsDropDownBox ? AccessibleRole::COMBO_BOX : AccessibleRole::PANEL;
395 if (m_bIsDropDownBox || (!m_bIsDropDownBox && m_aBoxType == COMBOBOX ))
396 return AccessibleRole::COMBO_BOX;
397 else
398 return AccessibleRole::PANEL;
399 }
400
getAccessibleIndexInParent(void)401 sal_Int32 SAL_CALL VCLXAccessibleBox::getAccessibleIndexInParent (void)
402 throw (::com::sun::star::uno::RuntimeException)
403 {
404 if (m_nIndexInParent != DEFAULT_INDEX_IN_PARENT)
405 return m_nIndexInParent;
406 else
407 return VCLXAccessibleComponent::getAccessibleIndexInParent();
408 }
409
410 //===== XAccessibleAction ===================================================
411
getAccessibleActionCount(void)412 sal_Int32 SAL_CALL VCLXAccessibleBox::getAccessibleActionCount (void)
413 throw (RuntimeException)
414 {
415 ::osl::Guard< ::osl::Mutex> aGuard (GetMutex());
416
417 // There is one action for drop down boxes (toggle popup) and none for
418 // the other boxes.
419 return m_bIsDropDownBox ? 1 : 0;
420 }
421
doAccessibleAction(sal_Int32 nIndex)422 sal_Bool SAL_CALL VCLXAccessibleBox::doAccessibleAction (sal_Int32 nIndex)
423 throw (IndexOutOfBoundsException, RuntimeException)
424 {
425 sal_Bool bNotify = sal_False;
426
427 {
428 vos::OGuard aSolarGuard( Application::GetSolarMutex() );
429 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
430
431 if (nIndex<0 || nIndex>=getAccessibleActionCount())
432 throw ::com::sun::star::lang::IndexOutOfBoundsException();
433
434 if (m_aBoxType == COMBOBOX)
435 {
436 ComboBox* pComboBox = static_cast< ComboBox* >( GetWindow() );
437 if (pComboBox != NULL)
438 {
439 pComboBox->ToggleDropDown();
440 bNotify = sal_True;
441 }
442 }
443 else if (m_aBoxType == LISTBOX)
444 {
445 ListBox* pListBox = static_cast< ListBox* >( GetWindow() );
446 if (pListBox != NULL)
447 {
448 pListBox->ToggleDropDown();
449 bNotify = sal_True;
450 }
451 }
452 }
453
454 if (bNotify)
455 NotifyAccessibleEvent (AccessibleEventId::ACTION_CHANGED, Any(), Any());
456
457 return bNotify;
458 }
459
getAccessibleActionDescription(sal_Int32 nIndex)460 ::rtl::OUString SAL_CALL VCLXAccessibleBox::getAccessibleActionDescription (sal_Int32 nIndex)
461 throw (IndexOutOfBoundsException, RuntimeException)
462 {
463 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
464 if (nIndex<0 || nIndex>=getAccessibleActionCount())
465 throw ::com::sun::star::lang::IndexOutOfBoundsException();
466
467 return m_bIsDropDownBox ? TK_RES_STRING( RID_STR_ACC_ACTION_TOGGLEPOPUP) : ::rtl::OUString();
468 }
469
getAccessibleActionKeyBinding(sal_Int32 nIndex)470 Reference< XAccessibleKeyBinding > VCLXAccessibleBox::getAccessibleActionKeyBinding( sal_Int32 nIndex )
471 throw (IndexOutOfBoundsException, RuntimeException)
472 {
473 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
474
475 Reference< XAccessibleKeyBinding > xRet;
476
477 if (nIndex<0 || nIndex>=getAccessibleActionCount())
478 throw ::com::sun::star::lang::IndexOutOfBoundsException();
479
480 // ... which key?
481 return xRet;
482 }
483
484 //===== XComponent ==========================================================
485
disposing(void)486 void SAL_CALL VCLXAccessibleBox::disposing (void)
487 {
488 VCLXAccessibleComponent::disposing();
489 }
490
491 // ===== XAccessibleValue ===============================================
getCurrentValue()492 Any VCLXAccessibleBox::getCurrentValue( )
493 throw( RuntimeException )
494 {
495 vos::OGuard aSolarGuard( Application::GetSolarMutex() );
496 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
497
498 Any aAny;
499 if( m_xList.is() && m_xText.is())
500 {
501 // VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
502 Reference<XAccessibleText> xText (m_xText->getAccessibleContext(), UNO_QUERY);
503 if ( xText.is() )
504 {
505 ::rtl::OUString sText = xText->getText();
506 aAny <<= sText;
507 }
508 }
509 if (m_aBoxType == LISTBOX && m_bIsDropDownBox && m_xList.is() )
510 {
511
512 VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
513 if(pList->IsInDropDown())
514 {
515 if(pList->getSelectedAccessibleChildCount()>0)
516 {
517 Reference<XAccessibleContext> xName (pList->getSelectedAccessibleChild((sal_Int32)(0)), UNO_QUERY);
518 if(xName.is())
519 {
520 aAny <<= xName->getAccessibleName();
521 }
522 }
523 }
524 }
525
526 return aAny;
527 }
528
setCurrentValue(const Any & aNumber)529 sal_Bool VCLXAccessibleBox::setCurrentValue( const Any& aNumber )
530 throw( RuntimeException )
531 {
532 vos::OGuard aSolarGuard( Application::GetSolarMutex() );
533 ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );
534
535 ::rtl::OUString fValue;
536 sal_Bool bValid = (aNumber >>= fValue);
537 if( bValid )
538 {
539
540 }
541 return bValid;
542
543 }
544
getMaximumValue()545 Any VCLXAccessibleBox::getMaximumValue( )
546 throw( RuntimeException )
547 {
548 Any aAny;
549 return aAny;
550 }
551
getMinimumValue()552 Any VCLXAccessibleBox::getMinimumValue( )
553 throw( RuntimeException )
554 {
555 Any aAny;
556 return aAny;
557 }
558
559 // Set the INDETERMINATE state when there is no selected item for combobox
FillAccessibleStateSet(utl::AccessibleStateSetHelper & rStateSet)560 void VCLXAccessibleBox::FillAccessibleStateSet( utl::AccessibleStateSetHelper& rStateSet )
561 {
562 VCLXAccessibleComponent::FillAccessibleStateSet(rStateSet);
563 if (m_aBoxType == COMBOBOX )
564 {
565 ::rtl::OUString sText;
566 sal_Int32 nEntryCount = 0;
567 ComboBox* pComboBox = static_cast<ComboBox*>(GetWindow());
568 if (pComboBox != NULL)
569 {
570 Edit* pSubEdit = pComboBox->GetSubEdit();
571 if ( pSubEdit)
572 sText = pSubEdit->GetText();
573 nEntryCount = pComboBox->GetEntryCount();
574 }
575 if ( sText.isEmpty() && nEntryCount > 0 )
576 rStateSet.AddState(AccessibleStateType::INDETERMINATE);
577 }
578 else if (m_aBoxType == LISTBOX && m_bIsDropDownBox == true)
579 {
580 sal_Int32 nSelectedEntryCount = 0;
581 ListBox* pListBox = static_cast< ListBox* >( GetWindow() );
582 if (pListBox != NULL && pListBox->GetEntryCount() > 0)
583 {
584 nSelectedEntryCount = pListBox->GetSelectEntryCount();
585 if ( nSelectedEntryCount == 0)
586 rStateSet.AddState(AccessibleStateType::INDETERMINATE);
587 }
588 }
589 }
590