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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 <com/sun/star/accessibility/XAccessibleContext.hpp>
21 : #include <comphelper/servicehelper.hxx>
22 : #include <cppuhelper/supportsservice.hxx>
23 : #include <osl/mutex.hxx>
24 : #include <vcl/svapp.hxx>
25 : #include <com/sun/star/accessibility/AccessibleRole.hpp>
26 : #include <com/sun/star/accessibility/AccessibleStateType.hpp>
27 : #include <com/sun/star/accessibility/AccessibleRelation.hpp>
28 : #include <com/sun/star/accessibility/AccessibleRelationType.hpp>
29 : #include <com/sun/star/accessibility/XAccessibleRelationSet.hpp>
30 : #include <com/sun/star/accessibility/AccessibleEventId.hpp>
31 : #include <unotools/accessiblestatesethelper.hxx>
32 : #include <frmfmt.hxx>
33 : #include <flyfrm.hxx>
34 : #include <accmap.hxx>
35 : #include <unotools/accessiblerelationsethelper.hxx>
36 : #include <doc.hxx>
37 : #include <hints.hxx>
38 : #include "acctextframe.hxx"
39 :
40 : using namespace ::com::sun::star;
41 : using namespace ::com::sun::star::accessibility;
42 :
43 : using utl::AccessibleRelationSetHelper;
44 : using ::com::sun::star::accessibility::XAccessibleContext;
45 :
46 0 : SwAccessibleTextFrame::SwAccessibleTextFrame(
47 : SwAccessibleMap* pInitMap,
48 : const SwFlyFrm& rFlyFrm ) :
49 : SwAccessibleFrameBase( pInitMap, AccessibleRole::TEXT_FRAME, &rFlyFrm ),
50 : msTitle(),
51 0 : msDesc()
52 : {
53 : const SwFlyFrameFormat* pFlyFrameFormat =
54 0 : dynamic_cast<const SwFlyFrameFormat*>( rFlyFrm.GetFormat() );
55 0 : msTitle = pFlyFrameFormat->GetObjTitle();
56 :
57 0 : msDesc = pFlyFrameFormat->GetObjDescription();
58 0 : if ( msDesc.isEmpty() &&
59 0 : msTitle != GetName() )
60 : {
61 0 : msDesc = msTitle;
62 : }
63 0 : }
64 :
65 0 : SwAccessibleTextFrame::~SwAccessibleTextFrame()
66 : {
67 0 : }
68 :
69 0 : void SwAccessibleTextFrame::Modify( const SfxPoolItem* pOld, const SfxPoolItem *pNew)
70 : {
71 0 : const sal_uInt16 nWhich = pOld ? pOld->Which() : pNew ? pNew->Which() : 0 ;
72 : // #i73249# - suppress handling of RES_NAME_CHANGED
73 : // in case that attribute Title is used as the accessible name.
74 0 : if ( nWhich != RES_NAME_CHANGED ||
75 0 : msTitle.isEmpty() )
76 : {
77 0 : SwAccessibleFrameBase::Modify( pOld, pNew );
78 : }
79 :
80 0 : const SwFlyFrm *pFlyFrm = static_cast< const SwFlyFrm * >( GetFrm() );
81 0 : switch( nWhich )
82 : {
83 : // #i73249#
84 : case RES_TITLE_CHANGED:
85 : {
86 0 : OUString sOldTitle, sNewTitle;
87 0 : const SwStringMsgPoolItem *pOldItem = dynamic_cast<const SwStringMsgPoolItem*>(pOld);
88 0 : if (pOldItem)
89 0 : sOldTitle = pOldItem->GetString();
90 0 : const SwStringMsgPoolItem *pNewItem = dynamic_cast<const SwStringMsgPoolItem*>(pNew);
91 0 : if (pNewItem)
92 0 : sNewTitle = pNewItem->GetString();
93 0 : if (sOldTitle == sNewTitle)
94 : {
95 0 : break;
96 : }
97 0 : msTitle = sNewTitle;
98 0 : AccessibleEventObject aEvent;
99 0 : aEvent.EventId = AccessibleEventId::NAME_CHANGED;
100 0 : aEvent.OldValue <<= OUString( sOldTitle );
101 0 : aEvent.NewValue <<= msTitle;
102 0 : FireAccessibleEvent( aEvent );
103 :
104 : const SwFlyFrameFormat* pFlyFrameFormat =
105 0 : dynamic_cast<const SwFlyFrameFormat*>( pFlyFrm->GetFormat() );
106 0 : if (!pFlyFrameFormat || !pFlyFrameFormat->GetObjDescription().isEmpty())
107 : {
108 0 : break;
109 0 : }
110 : }
111 : // intentionally no break here
112 : case RES_DESCRIPTION_CHANGED:
113 : {
114 0 : if ( pFlyFrm )
115 : {
116 0 : const OUString sOldDesc( msDesc );
117 :
118 : const SwFlyFrameFormat* pFlyFrameFormat =
119 0 : dynamic_cast<const SwFlyFrameFormat*>( pFlyFrm->GetFormat() );
120 0 : const OUString& rDesc = pFlyFrameFormat->GetObjDescription();
121 0 : msDesc = rDesc;
122 0 : if ( msDesc.isEmpty() &&
123 0 : msTitle != GetName() )
124 : {
125 0 : msDesc = msTitle;
126 : }
127 :
128 0 : if ( msDesc != sOldDesc )
129 : {
130 0 : AccessibleEventObject aEvent;
131 0 : aEvent.EventId = AccessibleEventId::DESCRIPTION_CHANGED;
132 0 : aEvent.OldValue <<= sOldDesc;
133 0 : aEvent.NewValue <<= msDesc;
134 0 : FireAccessibleEvent( aEvent );
135 0 : }
136 : }
137 : }
138 0 : break;
139 : }
140 0 : }
141 :
142 : // XInterface
143 :
144 : com::sun::star::uno::Any SAL_CALL
145 0 : SwAccessibleTextFrame::queryInterface (const com::sun::star::uno::Type & rType)
146 : throw (::com::sun::star::uno::RuntimeException, std::exception)
147 : {
148 0 : ::com::sun::star::uno::Any aReturn = SwAccessibleContext::queryInterface (rType);
149 0 : if ( ! aReturn.hasValue())
150 0 : aReturn = ::cppu::queryInterface (rType,
151 : static_cast< ::com::sun::star::accessibility::XAccessibleSelection* >(this)
152 0 : );
153 0 : return aReturn;
154 : }
155 :
156 : void SAL_CALL
157 0 : SwAccessibleTextFrame::acquire()
158 : throw ()
159 : {
160 0 : SwAccessibleContext::acquire ();
161 0 : }
162 :
163 : void SAL_CALL
164 0 : SwAccessibleTextFrame::release()
165 : throw ()
166 : {
167 0 : SwAccessibleContext::release ();
168 0 : }
169 :
170 : // XAccessibleSelection
171 :
172 0 : void SAL_CALL SwAccessibleTextFrame::selectAccessibleChild( sal_Int32 )
173 : throw ( lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception )
174 : {
175 : SAL_WARN("sw.core", "<SwAccessibleTextFrame::selectAccessibleChild( sal_Int32 )> - missing implementation" );
176 0 : }
177 :
178 0 : sal_Bool SAL_CALL SwAccessibleTextFrame::isAccessibleChildSelected( sal_Int32 nChildIndex )
179 : throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception )
180 : {
181 0 : SolarMutexGuard g;
182 :
183 0 : uno::Reference<XAccessible> xAcc = getAccessibleChild( nChildIndex );
184 0 : uno::Reference<XAccessibleContext> xContext;
185 0 : if( xAcc.is() )
186 0 : xContext = xAcc->getAccessibleContext();
187 :
188 0 : if( xContext.is() )
189 : {
190 0 : if( xContext->getAccessibleRole() == AccessibleRole::PARAGRAPH )
191 : {
192 : uno::Reference< ::com::sun::star::accessibility::XAccessibleText >
193 0 : xText(xAcc, uno::UNO_QUERY);
194 0 : if( xText.is() )
195 : {
196 0 : if( xText->getSelectionStart() >= 0 ) return sal_True;
197 0 : }
198 : }
199 : }
200 :
201 0 : return sal_False;
202 : }
203 :
204 0 : void SAL_CALL SwAccessibleTextFrame::clearAccessibleSelection( )
205 : throw ( uno::RuntimeException, std::exception )
206 : {
207 : SAL_WARN("sw.core", "<SwAccessibleTextFrame::clearAccessibleSelection( )> - missing implementation");
208 0 : }
209 :
210 0 : void SAL_CALL SwAccessibleTextFrame::selectAllAccessibleChildren( )
211 : throw ( uno::RuntimeException, std::exception )
212 : {
213 : SAL_WARN("sw.core", "<SwAccessibleTextFrame::selectAllAccessibleChildren( )> - missing implementation");
214 0 : }
215 :
216 0 : sal_Int32 SAL_CALL SwAccessibleTextFrame::getSelectedAccessibleChildCount()
217 : throw ( uno::RuntimeException, std::exception )
218 : {
219 0 : sal_Int32 nCount = 0;
220 0 : sal_Int32 TotalCount = getAccessibleChildCount();
221 0 : for( sal_Int32 i = 0; i < TotalCount; i++ )
222 0 : if( isAccessibleChildSelected(i) ) nCount++;
223 :
224 0 : return nCount;
225 : }
226 :
227 0 : uno::Reference<XAccessible> SAL_CALL SwAccessibleTextFrame::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex )
228 : throw ( lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
229 : {
230 0 : SolarMutexGuard g;
231 :
232 0 : if ( nSelectedChildIndex > getSelectedAccessibleChildCount() )
233 0 : throw lang::IndexOutOfBoundsException();
234 : sal_Int32 i1, i2;
235 0 : for( i1 = 0, i2 = 0; i1 < getAccessibleChildCount(); i1++ )
236 0 : if( isAccessibleChildSelected(i1) )
237 : {
238 0 : if( i2 == nSelectedChildIndex )
239 0 : return getAccessibleChild( i1 );
240 0 : i2++;
241 : }
242 0 : return uno::Reference<XAccessible>();
243 : }
244 :
245 0 : void SAL_CALL SwAccessibleTextFrame::deselectAccessibleChild( sal_Int32 )
246 : throw ( lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception )
247 : {
248 : SAL_WARN("sw.core", "<SwAccessibleTextFrame::selectAllAccessibleChildren( sal_Int32 )> - missing implementation");
249 0 : }
250 :
251 : // #i73249#
252 0 : OUString SAL_CALL SwAccessibleTextFrame::getAccessibleName()
253 : throw (uno::RuntimeException, std::exception)
254 : {
255 0 : SolarMutexGuard aGuard;
256 :
257 0 : CHECK_FOR_DEFUNC( XAccessibleContext )
258 :
259 0 : if ( !msTitle.isEmpty() )
260 : {
261 0 : return msTitle;
262 : }
263 :
264 0 : return SwAccessibleFrameBase::getAccessibleName();
265 : }
266 :
267 0 : OUString SAL_CALL SwAccessibleTextFrame::getAccessibleDescription()
268 : throw (uno::RuntimeException, std::exception)
269 : {
270 0 : SolarMutexGuard aGuard;
271 :
272 0 : CHECK_FOR_DEFUNC( XAccessibleContext )
273 :
274 0 : return msDesc;
275 :
276 : }
277 :
278 0 : OUString SAL_CALL SwAccessibleTextFrame::getImplementationName()
279 : throw( uno::RuntimeException, std::exception )
280 : {
281 0 : return OUString("com.sun.star.comp.Writer.SwAccessibleTextFrameView");
282 : }
283 :
284 0 : sal_Bool SAL_CALL SwAccessibleTextFrame::supportsService(const OUString& sTestServiceName)
285 : throw (uno::RuntimeException, std::exception)
286 : {
287 0 : return cppu::supportsService(this, sTestServiceName);
288 : }
289 :
290 0 : uno::Sequence< OUString > SAL_CALL SwAccessibleTextFrame::getSupportedServiceNames()
291 : throw( uno::RuntimeException, std::exception )
292 : {
293 0 : uno::Sequence< OUString > aRet(2);
294 0 : OUString* pArray = aRet.getArray();
295 0 : pArray[0] = "com.sun.star.text.AccessibleTextFrameView";
296 0 : pArray[1] = sAccessibleServiceName;
297 0 : return aRet;
298 : }
299 :
300 0 : uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleTextFrame::getImplementationId()
301 : throw(uno::RuntimeException, std::exception)
302 : {
303 0 : return css::uno::Sequence<sal_Int8>();
304 : }
305 :
306 : // XAccessibleRelationSet
307 :
308 0 : SwFlyFrm* SwAccessibleTextFrame::getFlyFrm() const
309 : {
310 0 : SwFlyFrm* pFlyFrm = NULL;
311 :
312 0 : const SwFrm* pFrm = GetFrm();
313 : assert(pFrm);
314 0 : if( pFrm->IsFlyFrm() )
315 : {
316 0 : pFlyFrm = static_cast<SwFlyFrm*>( const_cast<SwFrm*>( pFrm ) );
317 : }
318 :
319 0 : return pFlyFrm;
320 : }
321 :
322 0 : AccessibleRelation SwAccessibleTextFrame::makeRelation( sal_Int16 nType, const SwFlyFrm* pFrm )
323 : {
324 0 : uno::Sequence<uno::Reference<XInterface> > aSequence(1);
325 0 : aSequence[0] = GetMap()->GetContext( pFrm );
326 0 : return AccessibleRelation( nType, aSequence );
327 : }
328 :
329 0 : uno::Reference<XAccessibleRelationSet> SAL_CALL SwAccessibleTextFrame::getAccessibleRelationSet( )
330 : throw ( uno::RuntimeException, std::exception )
331 : {
332 0 : SolarMutexGuard aGuard;
333 0 : CHECK_FOR_DEFUNC( XAccessibleContext );
334 :
335 : // get the frame, and insert prev/next relations into helper
336 :
337 0 : AccessibleRelationSetHelper* pHelper = new AccessibleRelationSetHelper();
338 :
339 0 : SwFlyFrm* pFlyFrm = getFlyFrm();
340 : assert(pFlyFrm);
341 :
342 0 : const SwFlyFrm* pPrevFrm = pFlyFrm->GetPrevLink();
343 0 : if( pPrevFrm != NULL )
344 : pHelper->AddRelation( makeRelation(
345 0 : AccessibleRelationType::CONTENT_FLOWS_FROM, pPrevFrm ) );
346 :
347 0 : const SwFlyFrm* pNextFrm = pFlyFrm->GetNextLink();
348 0 : if( pNextFrm != NULL )
349 : pHelper->AddRelation( makeRelation(
350 0 : AccessibleRelationType::CONTENT_FLOWS_TO, pNextFrm ) );
351 :
352 0 : return pHelper;
353 177 : }
354 :
355 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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