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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 :
21 : #include <com/sun/star/accessibility/XAccessibleContext.hpp>
22 : #include <comphelper/servicehelper.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 <hints.hxx> // #i73249#
37 : #include "acctextframe.hxx"
38 :
39 : using namespace ::com::sun::star;
40 : using namespace ::com::sun::star::accessibility;
41 : using ::rtl::OUString;
42 :
43 : using utl::AccessibleRelationSetHelper;
44 : using ::com::sun::star::accessibility::XAccessibleContext;
45 :
46 : const sal_Char sServiceName[] = "com.sun.star.text.AccessibleTextFrameView";
47 : const sal_Char sImplementationName[] = "com.sun.star.comp.Writer.SwAccessibleTextFrameView";
48 :
49 0 : SwAccessibleTextFrame::SwAccessibleTextFrame(
50 : SwAccessibleMap* pInitMap,
51 : const SwFlyFrm* pFlyFrm ) :
52 : SwAccessibleFrameBase( pInitMap, AccessibleRole::TEXT_FRAME, pFlyFrm ),
53 : msTitle(),
54 0 : msDesc()
55 : {
56 0 : if ( pFlyFrm )
57 : {
58 : const SwFlyFrmFmt* pFlyFrmFmt =
59 0 : dynamic_cast<const SwFlyFrmFmt*>( pFlyFrm->GetFmt() );
60 0 : msTitle = pFlyFrmFmt->GetObjTitle();
61 :
62 0 : msDesc = pFlyFrmFmt->GetObjDescription();
63 0 : if ( msDesc.isEmpty() &&
64 0 : msTitle != GetName() )
65 : {
66 0 : msDesc = msTitle;
67 : }
68 : }
69 0 : }
70 :
71 0 : SwAccessibleTextFrame::~SwAccessibleTextFrame()
72 : {
73 0 : }
74 :
75 0 : void SwAccessibleTextFrame::Modify( const SfxPoolItem* pOld, const SfxPoolItem *pNew)
76 : {
77 0 : const sal_uInt16 nWhich = pOld ? pOld->Which() : pNew ? pNew->Which() : 0 ;
78 : // #i73249# - suppress handling of RES_NAME_CHANGED
79 : // in case that attribute Title is used as the accessible name.
80 0 : if ( nWhich != RES_NAME_CHANGED ||
81 0 : msTitle.isEmpty() )
82 : {
83 0 : SwAccessibleFrameBase::Modify( pOld, pNew );
84 : }
85 :
86 0 : const SwFlyFrm *pFlyFrm = static_cast< const SwFlyFrm * >( GetFrm() );
87 0 : switch( nWhich )
88 : {
89 : // #i73249#
90 : case RES_TITLE_CHANGED:
91 : {
92 : const String& sOldTitle(
93 0 : dynamic_cast<const SwStringMsgPoolItem*>(pOld)->GetString() );
94 : const String& sNewTitle(
95 0 : dynamic_cast<const SwStringMsgPoolItem*>(pNew)->GetString() );
96 0 : if ( sOldTitle == sNewTitle )
97 : {
98 : break;
99 : }
100 0 : msTitle = sNewTitle;
101 0 : AccessibleEventObject aEvent;
102 0 : aEvent.EventId = AccessibleEventId::NAME_CHANGED;
103 0 : aEvent.OldValue <<= OUString( sOldTitle );
104 0 : aEvent.NewValue <<= msTitle;
105 0 : FireAccessibleEvent( aEvent );
106 :
107 : const SwFlyFrmFmt* pFlyFrmFmt =
108 0 : dynamic_cast<const SwFlyFrmFmt*>( pFlyFrm->GetFmt() );
109 0 : if ( pFlyFrmFmt->GetObjDescription().Len() != 0 )
110 : {
111 : break;
112 0 : }
113 : }
114 : // intentional no break here
115 : case RES_DESCRIPTION_CHANGED:
116 : {
117 0 : if ( pFlyFrm )
118 : {
119 0 : const OUString sOldDesc( msDesc );
120 :
121 : const SwFlyFrmFmt* pFlyFrmFmt =
122 0 : dynamic_cast<const SwFlyFrmFmt*>( pFlyFrm->GetFmt() );
123 0 : const String& rDesc = pFlyFrmFmt->GetObjDescription();
124 0 : msDesc = rDesc;
125 0 : if ( msDesc.isEmpty() &&
126 0 : msTitle != GetName() )
127 : {
128 0 : msDesc = msTitle;
129 : }
130 :
131 0 : if ( msDesc != sOldDesc )
132 : {
133 0 : AccessibleEventObject aEvent;
134 0 : aEvent.EventId = AccessibleEventId::DESCRIPTION_CHANGED;
135 0 : aEvent.OldValue <<= sOldDesc;
136 0 : aEvent.NewValue <<= msDesc;
137 0 : FireAccessibleEvent( aEvent );
138 0 : }
139 : }
140 : }
141 0 : break;
142 : }
143 0 : }
144 :
145 : // #i73249#
146 0 : OUString SAL_CALL SwAccessibleTextFrame::getAccessibleName (void)
147 : throw (uno::RuntimeException)
148 : {
149 0 : SolarMutexGuard aGuard;
150 :
151 0 : CHECK_FOR_DEFUNC( XAccessibleContext )
152 :
153 0 : if ( !msTitle.isEmpty() )
154 : {
155 0 : return msTitle;
156 : }
157 :
158 0 : return SwAccessibleFrameBase::getAccessibleName();
159 : }
160 0 : OUString SAL_CALL SwAccessibleTextFrame::getAccessibleDescription (void)
161 : throw (uno::RuntimeException)
162 : {
163 0 : SolarMutexGuard aGuard;
164 :
165 0 : CHECK_FOR_DEFUNC( XAccessibleContext )
166 :
167 0 : return msDesc;
168 :
169 : }
170 :
171 0 : OUString SAL_CALL SwAccessibleTextFrame::getImplementationName()
172 : throw( uno::RuntimeException )
173 : {
174 0 : return OUString(RTL_CONSTASCII_USTRINGPARAM(sImplementationName));
175 : }
176 :
177 0 : sal_Bool SAL_CALL SwAccessibleTextFrame::supportsService(
178 : const OUString& sTestServiceName)
179 : throw (uno::RuntimeException)
180 : {
181 : return sTestServiceName.equalsAsciiL( sServiceName,
182 0 : sizeof(sServiceName)-1 ) ||
183 : sTestServiceName.equalsAsciiL( sAccessibleServiceName,
184 0 : sizeof(sAccessibleServiceName)-1 );
185 : }
186 :
187 0 : uno::Sequence< OUString > SAL_CALL SwAccessibleTextFrame::getSupportedServiceNames()
188 : throw( uno::RuntimeException )
189 : {
190 0 : uno::Sequence< OUString > aRet(2);
191 0 : OUString* pArray = aRet.getArray();
192 0 : pArray[0] = OUString( RTL_CONSTASCII_USTRINGPARAM(sServiceName) );
193 0 : pArray[1] = OUString( RTL_CONSTASCII_USTRINGPARAM(sAccessibleServiceName) );
194 0 : return aRet;
195 : }
196 :
197 : namespace
198 : {
199 : class theSwAccessibleTextFrameImplementationId : public rtl::Static< UnoTunnelIdInit, theSwAccessibleTextFrameImplementationId > {};
200 : }
201 :
202 0 : uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleTextFrame::getImplementationId()
203 : throw(uno::RuntimeException)
204 : {
205 0 : return theSwAccessibleTextFrameImplementationId::get().getSeq();
206 : }
207 :
208 :
209 : //
210 : // XAccessibleRelationSet
211 : //
212 :
213 :
214 0 : SwFlyFrm* SwAccessibleTextFrame::getFlyFrm() const
215 : {
216 0 : SwFlyFrm* pFlyFrm = NULL;
217 :
218 0 : const SwFrm* pFrm = GetFrm();
219 : OSL_ENSURE( pFrm != NULL, "frame expected" );
220 0 : if( pFrm->IsFlyFrm() )
221 : {
222 0 : pFlyFrm = static_cast<SwFlyFrm*>( const_cast<SwFrm*>( pFrm ) );
223 : }
224 :
225 0 : return pFlyFrm;
226 : }
227 :
228 0 : AccessibleRelation SwAccessibleTextFrame::makeRelation( sal_Int16 nType, const SwFlyFrm* pFrm )
229 : {
230 0 : uno::Sequence<uno::Reference<XInterface> > aSequence(1);
231 0 : aSequence[0] = GetMap()->GetContext( pFrm );
232 0 : return AccessibleRelation( nType, aSequence );
233 : }
234 :
235 :
236 0 : uno::Reference<XAccessibleRelationSet> SAL_CALL SwAccessibleTextFrame::getAccessibleRelationSet( )
237 : throw ( uno::RuntimeException )
238 : {
239 0 : SolarMutexGuard aGuard;
240 0 : CHECK_FOR_DEFUNC( XAccessibleContext );
241 :
242 : // get the frame, and insert prev/next relations into helper
243 :
244 0 : AccessibleRelationSetHelper* pHelper = new AccessibleRelationSetHelper();
245 :
246 0 : SwFlyFrm* pFlyFrm = getFlyFrm();
247 : OSL_ENSURE( pFlyFrm != NULL, "fly frame expected" );
248 :
249 0 : const SwFlyFrm* pPrevFrm = pFlyFrm->GetPrevLink();
250 0 : if( pPrevFrm != NULL )
251 : pHelper->AddRelation( makeRelation(
252 0 : AccessibleRelationType::CONTENT_FLOWS_FROM, pPrevFrm ) );
253 :
254 0 : const SwFlyFrm* pNextFrm = pFlyFrm->GetNextLink();
255 0 : if( pNextFrm != NULL )
256 : pHelper->AddRelation( makeRelation(
257 0 : AccessibleRelationType::CONTENT_FLOWS_TO, pNextFrm ) );
258 :
259 0 : return pHelper;
260 : }
261 :
262 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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