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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 <accessibility/extended/accessiblelistbox.hxx>
21 : #include <accessibility/extended/accessiblelistboxentry.hxx>
22 : #include <svtools/treelistbox.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 : #include <com/sun/star/accessibility/AccessibleEventId.hpp>
27 : #include <com/sun/star/accessibility/AccessibleRole.hpp>
28 : #include <com/sun/star/accessibility/AccessibleStateType.hpp>
29 : #include <cppuhelper/supportsservice.hxx>
30 : #include <vcl/svapp.hxx>
31 : #include <toolkit/awt/vclxwindow.hxx>
32 : #include <toolkit/helper/convert.hxx>
33 : #include <unotools/accessiblestatesethelper.hxx>
34 :
35 : //........................................................................
36 : namespace accessibility
37 : {
38 : //........................................................................
39 :
40 : // class AccessibleListBox -----------------------------------------------------
41 :
42 : using namespace ::com::sun::star::accessibility;
43 : using namespace ::com::sun::star::uno;
44 : using namespace ::com::sun::star::lang;
45 : using namespace ::com::sun::star;
46 :
47 : // -----------------------------------------------------------------------------
48 : // Ctor() and Dtor()
49 : // -----------------------------------------------------------------------------
50 0 : AccessibleListBox::AccessibleListBox( SvTreeListBox& _rListBox, const Reference< XAccessible >& _xParent ) :
51 :
52 : VCLXAccessibleComponent( _rListBox.GetWindowPeer() ),
53 0 : m_xParent( _xParent )
54 : {
55 0 : }
56 : // -----------------------------------------------------------------------------
57 0 : AccessibleListBox::~AccessibleListBox()
58 : {
59 0 : if ( isAlive() )
60 : {
61 : // increment ref count to prevent double call of Dtor
62 0 : osl_atomic_increment( &m_refCount );
63 0 : dispose();
64 : }
65 0 : }
66 0 : IMPLEMENT_FORWARD_XINTERFACE2(AccessibleListBox, VCLXAccessibleComponent, AccessibleListBox_BASE)
67 0 : IMPLEMENT_FORWARD_XTYPEPROVIDER2(AccessibleListBox, VCLXAccessibleComponent, AccessibleListBox_BASE)
68 : // -----------------------------------------------------------------------------
69 0 : SvTreeListBox* AccessibleListBox::getListBox() const
70 : {
71 0 : return static_cast< SvTreeListBox* >( const_cast<AccessibleListBox*>(this)->GetWindow() );
72 : }
73 : // -----------------------------------------------------------------------------
74 0 : void AccessibleListBox::ProcessWindowEvent( const VclWindowEvent& rVclWindowEvent )
75 : {
76 0 : if ( isAlive() )
77 : {
78 0 : switch ( rVclWindowEvent.GetId() )
79 : {
80 : case VCLEVENT_CHECKBOX_TOGGLE :
81 : {
82 0 : if ( getListBox() && getListBox()->HasFocus() )
83 : {
84 0 : SvTreeListEntry* pEntry = static_cast< SvTreeListEntry* >( rVclWindowEvent.GetData() );
85 0 : if ( !pEntry )
86 0 : pEntry = getListBox()->GetCurEntry();
87 :
88 0 : if ( pEntry )
89 : {
90 0 : Reference< XAccessible > xChild = new AccessibleListBoxEntry( *getListBox(), pEntry, this );
91 0 : uno::Any aOldValue, aNewValue;
92 0 : aNewValue <<= xChild;
93 0 : NotifyAccessibleEvent( AccessibleEventId::ACTIVE_DESCENDANT_CHANGED, aOldValue, aNewValue );
94 : }
95 : }
96 0 : break;
97 : }
98 :
99 : case VCLEVENT_LISTBOX_SELECT :
100 : {
101 : // First send an event that tells the listeners of a
102 : // modified selection. The active descendant event is
103 : // send after that so that the receiving AT has time to
104 : // read the text or name of the active child.
105 0 : NotifyAccessibleEvent( AccessibleEventId::SELECTION_CHANGED, Any(), Any() );
106 0 : if ( getListBox() && getListBox()->HasFocus() )
107 : {
108 0 : SvTreeListEntry* pEntry = static_cast< SvTreeListEntry* >( rVclWindowEvent.GetData() );
109 0 : if ( pEntry )
110 : {
111 0 : Reference< XAccessible > xChild = new AccessibleListBoxEntry( *getListBox(), pEntry, this );
112 0 : uno::Any aOldValue, aNewValue;
113 0 : aNewValue <<= xChild;
114 0 : NotifyAccessibleEvent( AccessibleEventId::ACTIVE_DESCENDANT_CHANGED, aOldValue, aNewValue );
115 : }
116 : }
117 0 : break;
118 :
119 : // #i92103#
120 : case VCLEVENT_ITEM_EXPANDED :
121 : case VCLEVENT_ITEM_COLLAPSED :
122 : {
123 0 : SvTreeListEntry* pEntry = static_cast< SvTreeListEntry* >( rVclWindowEvent.GetData() );
124 0 : if ( pEntry )
125 : {
126 : AccessibleListBoxEntry* pAccListBoxEntry =
127 0 : new AccessibleListBoxEntry( *getListBox(), pEntry, this );
128 0 : Reference< XAccessible > xChild = pAccListBoxEntry;
129 : const short nAccEvent =
130 0 : ( rVclWindowEvent.GetId() == VCLEVENT_ITEM_EXPANDED )
131 : ? AccessibleEventId::LISTBOX_ENTRY_EXPANDED
132 0 : : AccessibleEventId::LISTBOX_ENTRY_COLLAPSED;
133 0 : uno::Any aListBoxEntry;
134 0 : aListBoxEntry <<= xChild;
135 0 : NotifyAccessibleEvent( nAccEvent, Any(), aListBoxEntry );
136 0 : if ( getListBox() && getListBox()->HasFocus() )
137 : {
138 0 : NotifyAccessibleEvent( AccessibleEventId::ACTIVE_DESCENDANT_CHANGED, Any(), aListBoxEntry );
139 0 : }
140 : }
141 0 : break;
142 : }
143 : }
144 : default:
145 0 : VCLXAccessibleComponent::ProcessWindowEvent (rVclWindowEvent);
146 : }
147 : }
148 0 : }
149 : // -----------------------------------------------------------------------------
150 0 : void AccessibleListBox::ProcessWindowChildEvent( const VclWindowEvent& rVclWindowEvent )
151 : {
152 0 : switch ( rVclWindowEvent.GetId() )
153 : {
154 : case VCLEVENT_WINDOW_SHOW:
155 : case VCLEVENT_WINDOW_HIDE:
156 : {
157 : }
158 0 : break;
159 : default:
160 : {
161 0 : VCLXAccessibleComponent::ProcessWindowChildEvent( rVclWindowEvent );
162 : }
163 0 : break;
164 : }
165 0 : }
166 :
167 : // -----------------------------------------------------------------------------
168 : // XComponent
169 : // -----------------------------------------------------------------------------
170 0 : void SAL_CALL AccessibleListBox::disposing()
171 : {
172 0 : ::osl::MutexGuard aGuard( m_aMutex );
173 :
174 0 : VCLXAccessibleComponent::disposing();
175 0 : m_xParent = NULL;
176 0 : }
177 : // -----------------------------------------------------------------------------
178 : // XServiceInfo
179 : // -----------------------------------------------------------------------------
180 0 : OUString SAL_CALL AccessibleListBox::getImplementationName() throw(RuntimeException)
181 : {
182 0 : return getImplementationName_Static();
183 : }
184 : // -----------------------------------------------------------------------------
185 0 : Sequence< OUString > SAL_CALL AccessibleListBox::getSupportedServiceNames() throw(RuntimeException)
186 : {
187 0 : return getSupportedServiceNames_Static();
188 : }
189 : // -----------------------------------------------------------------------------
190 0 : sal_Bool SAL_CALL AccessibleListBox::supportsService( const OUString& _rServiceName ) throw (RuntimeException)
191 : {
192 0 : return cppu::supportsService(this, _rServiceName);
193 : }
194 : // -----------------------------------------------------------------------------
195 : // XServiceInfo - static methods
196 : // -----------------------------------------------------------------------------
197 0 : Sequence< OUString > AccessibleListBox::getSupportedServiceNames_Static(void) throw( RuntimeException )
198 : {
199 0 : Sequence< OUString > aSupported(3);
200 0 : aSupported[0] = "com.sun.star.accessibility.AccessibleContext";
201 0 : aSupported[1] = "com.sun.star.accessibility.AccessibleComponent";
202 0 : aSupported[2] = "com.sun.star.awt.AccessibleTreeListBox";
203 0 : return aSupported;
204 : }
205 : // -----------------------------------------------------------------------------
206 0 : OUString AccessibleListBox::getImplementationName_Static(void) throw( RuntimeException )
207 : {
208 0 : return OUString( "com.sun.star.comp.svtools.AccessibleTreeListBox" );
209 : }
210 : // -----------------------------------------------------------------------------
211 : // XAccessible
212 : // -----------------------------------------------------------------------------
213 0 : Reference< XAccessibleContext > SAL_CALL AccessibleListBox::getAccessibleContext( ) throw (RuntimeException)
214 : {
215 0 : ensureAlive();
216 0 : return this;
217 : }
218 : // -----------------------------------------------------------------------------
219 : // XAccessibleContext
220 : // -----------------------------------------------------------------------------
221 0 : sal_Int32 SAL_CALL AccessibleListBox::getAccessibleChildCount( ) throw (RuntimeException)
222 : {
223 0 : ::comphelper::OExternalLockGuard aGuard( this );
224 :
225 0 : ensureAlive();
226 :
227 0 : sal_Int32 nCount = 0;
228 0 : SvTreeListBox* pSvTreeListBox = getListBox();
229 0 : if ( pSvTreeListBox )
230 0 : nCount = pSvTreeListBox->GetLevelChildCount( NULL );
231 :
232 0 : return nCount;
233 : }
234 : // -----------------------------------------------------------------------------
235 0 : Reference< XAccessible > SAL_CALL AccessibleListBox::getAccessibleChild( sal_Int32 i ) throw (IndexOutOfBoundsException,RuntimeException)
236 : {
237 0 : ::comphelper::OExternalLockGuard aGuard( this );
238 :
239 0 : ensureAlive();
240 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry(i);
241 0 : if ( !pEntry )
242 0 : throw IndexOutOfBoundsException();
243 :
244 0 : return new AccessibleListBoxEntry( *getListBox(), pEntry, this );
245 : }
246 : // -----------------------------------------------------------------------------
247 0 : Reference< XAccessible > SAL_CALL AccessibleListBox::getAccessibleParent( ) throw (RuntimeException)
248 : {
249 0 : ::osl::MutexGuard aGuard( m_aMutex );
250 :
251 0 : ensureAlive();
252 0 : return m_xParent;
253 : }
254 : // -----------------------------------------------------------------------------
255 0 : sal_Int16 SAL_CALL AccessibleListBox::getAccessibleRole( ) throw (RuntimeException)
256 : {
257 0 : return AccessibleRole::TREE;
258 : }
259 : // -----------------------------------------------------------------------------
260 0 : OUString SAL_CALL AccessibleListBox::getAccessibleDescription( ) throw (RuntimeException)
261 : {
262 0 : ::comphelper::OExternalLockGuard aGuard( this );
263 :
264 0 : ensureAlive();
265 0 : return getListBox()->GetAccessibleDescription();
266 : }
267 : // -----------------------------------------------------------------------------
268 0 : OUString SAL_CALL AccessibleListBox::getAccessibleName( ) throw (RuntimeException)
269 : {
270 0 : ::comphelper::OExternalLockGuard aGuard( this );
271 :
272 0 : ensureAlive();
273 0 : return getListBox()->GetAccessibleName();
274 : }
275 : // -----------------------------------------------------------------------------
276 : // XAccessibleSelection
277 : // -----------------------------------------------------------------------------
278 0 : void SAL_CALL AccessibleListBox::selectAccessibleChild( sal_Int32 nChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
279 : {
280 0 : ::comphelper::OExternalLockGuard aGuard( this );
281 :
282 0 : ensureAlive();
283 :
284 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry( nChildIndex );
285 0 : if ( !pEntry )
286 0 : throw IndexOutOfBoundsException();
287 :
288 0 : getListBox()->Select( pEntry, sal_True );
289 0 : }
290 : // -----------------------------------------------------------------------------
291 0 : sal_Bool SAL_CALL AccessibleListBox::isAccessibleChildSelected( sal_Int32 nChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
292 : {
293 0 : ::comphelper::OExternalLockGuard aGuard( this );
294 :
295 0 : ensureAlive();
296 :
297 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry( nChildIndex );
298 0 : if ( !pEntry )
299 0 : throw IndexOutOfBoundsException();
300 :
301 0 : return getListBox()->IsSelected( pEntry );
302 : }
303 : // -----------------------------------------------------------------------------
304 0 : void SAL_CALL AccessibleListBox::clearAccessibleSelection( ) throw (RuntimeException)
305 : {
306 0 : ::comphelper::OExternalLockGuard aGuard( this );
307 :
308 0 : ensureAlive();
309 :
310 0 : sal_Int32 nCount = getListBox()->GetLevelChildCount( NULL );
311 0 : for ( sal_Int32 i = 0; i < nCount; ++i )
312 : {
313 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry( i );
314 0 : if ( getListBox()->IsSelected( pEntry ) )
315 0 : getListBox()->Select( pEntry, sal_False );
316 0 : }
317 0 : }
318 : // -----------------------------------------------------------------------------
319 0 : void SAL_CALL AccessibleListBox::selectAllAccessibleChildren( ) throw (RuntimeException)
320 : {
321 0 : ::comphelper::OExternalLockGuard aGuard( this );
322 :
323 0 : ensureAlive();
324 :
325 0 : sal_Int32 nCount = getListBox()->GetLevelChildCount( NULL );
326 0 : for ( sal_Int32 i = 0; i < nCount; ++i )
327 : {
328 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry( i );
329 0 : if ( !getListBox()->IsSelected( pEntry ) )
330 0 : getListBox()->Select( pEntry, sal_True );
331 0 : }
332 0 : }
333 : // -----------------------------------------------------------------------------
334 0 : sal_Int32 SAL_CALL AccessibleListBox::getSelectedAccessibleChildCount( ) throw (RuntimeException)
335 : {
336 0 : ::comphelper::OExternalLockGuard aGuard( this );
337 :
338 0 : ensureAlive();
339 :
340 0 : sal_Int32 nSelCount = 0;
341 0 : sal_Int32 nCount = getListBox()->GetLevelChildCount( NULL );
342 0 : for ( sal_Int32 i = 0; i < nCount; ++i )
343 : {
344 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry( i );
345 0 : if ( getListBox()->IsSelected( pEntry ) )
346 0 : ++nSelCount;
347 : }
348 :
349 0 : return nSelCount;
350 : }
351 : // -----------------------------------------------------------------------------
352 0 : Reference< XAccessible > SAL_CALL AccessibleListBox::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
353 : {
354 0 : ::comphelper::OExternalLockGuard aGuard( this );
355 :
356 0 : ensureAlive();
357 :
358 0 : if ( nSelectedChildIndex < 0 || nSelectedChildIndex >= getSelectedAccessibleChildCount() )
359 0 : throw IndexOutOfBoundsException();
360 :
361 0 : Reference< XAccessible > xChild;
362 0 : sal_Int32 nSelCount= 0;
363 0 : sal_Int32 nCount = getListBox()->GetLevelChildCount( NULL );
364 0 : for ( sal_Int32 i = 0; i < nCount; ++i )
365 : {
366 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry( i );
367 0 : if ( getListBox()->IsSelected( pEntry ) )
368 0 : ++nSelCount;
369 :
370 0 : if ( nSelCount == ( nSelectedChildIndex + 1 ) )
371 : {
372 0 : xChild = new AccessibleListBoxEntry( *getListBox(), pEntry, this );
373 0 : break;
374 : }
375 : }
376 :
377 0 : return xChild;
378 : }
379 : // -----------------------------------------------------------------------------
380 0 : void SAL_CALL AccessibleListBox::deselectAccessibleChild( sal_Int32 nSelectedChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
381 : {
382 0 : ::comphelper::OExternalLockGuard aGuard( this );
383 :
384 0 : ensureAlive();
385 :
386 0 : SvTreeListEntry* pEntry = getListBox()->GetEntry( nSelectedChildIndex );
387 0 : if ( !pEntry )
388 0 : throw IndexOutOfBoundsException();
389 :
390 0 : getListBox()->Select( pEntry, sal_False );
391 0 : }
392 : // -----------------------------------------------------------------------------
393 0 : void AccessibleListBox::FillAccessibleStateSet( utl::AccessibleStateSetHelper& rStateSet )
394 : {
395 0 : VCLXAccessibleComponent::FillAccessibleStateSet( rStateSet );
396 0 : if ( getListBox() && isAlive() )
397 : {
398 0 : rStateSet.AddState( AccessibleStateType::FOCUSABLE );
399 0 : rStateSet.AddState( AccessibleStateType::MANAGES_DESCENDANTS );
400 0 : if ( getListBox()->GetSelectionMode() == MULTIPLE_SELECTION )
401 0 : rStateSet.AddState( AccessibleStateType::MULTI_SELECTABLE );
402 : }
403 0 : }
404 :
405 :
406 : //........................................................................
407 : }// namespace accessibility
408 : //........................................................................
409 :
410 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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