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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 "unotools/accessiblerelationsethelper.hxx"
21 : #include <vector>
22 : #include <comphelper/sequence.hxx>
23 : #include <comphelper/servicehelper.hxx>
24 :
25 : using namespace ::utl;
26 : using namespace ::rtl;
27 : using namespace ::com::sun::star;
28 : using namespace ::com::sun::star::accessibility;
29 :
30 : class AccessibleRelationSetHelperImpl
31 : {
32 : public:
33 : AccessibleRelationSetHelperImpl();
34 : AccessibleRelationSetHelperImpl(const AccessibleRelationSetHelperImpl& rImpl);
35 : ~AccessibleRelationSetHelperImpl();
36 :
37 : sal_Int32 getRelationCount( )
38 : throw (uno::RuntimeException);
39 : AccessibleRelation getRelation( sal_Int32 nIndex )
40 : throw (lang::IndexOutOfBoundsException,
41 : uno::RuntimeException);
42 : sal_Bool containsRelation( sal_Int16 aRelationType )
43 : throw (uno::RuntimeException);
44 : AccessibleRelation getRelationByType( sal_Int16 aRelationType )
45 : throw (uno::RuntimeException);
46 : void AddRelation(const AccessibleRelation& rRelation)
47 : throw (uno::RuntimeException);
48 :
49 : private:
50 : std::vector<AccessibleRelation> maRelations;
51 : };
52 :
53 0 : AccessibleRelationSetHelperImpl::AccessibleRelationSetHelperImpl()
54 : {
55 0 : }
56 :
57 0 : AccessibleRelationSetHelperImpl::AccessibleRelationSetHelperImpl(const AccessibleRelationSetHelperImpl& rImpl)
58 0 : : maRelations(rImpl.maRelations)
59 : {
60 0 : }
61 :
62 0 : AccessibleRelationSetHelperImpl::~AccessibleRelationSetHelperImpl()
63 : {
64 0 : }
65 :
66 0 : sal_Int32 AccessibleRelationSetHelperImpl::getRelationCount( )
67 : throw (uno::RuntimeException)
68 : {
69 0 : return maRelations.size();
70 : }
71 :
72 0 : AccessibleRelation AccessibleRelationSetHelperImpl::getRelation( sal_Int32 nIndex )
73 : throw (lang::IndexOutOfBoundsException,
74 : uno::RuntimeException)
75 : {
76 0 : if ((nIndex < 0) || (static_cast<sal_uInt32>(nIndex) >= maRelations.size()))
77 0 : throw lang::IndexOutOfBoundsException();
78 0 : return maRelations[nIndex];
79 : }
80 :
81 0 : sal_Bool AccessibleRelationSetHelperImpl::containsRelation( sal_Int16 aRelationType )
82 : throw (uno::RuntimeException)
83 : {
84 0 : AccessibleRelation defaultRelation; // default is INVALID
85 0 : AccessibleRelation relationByType = getRelationByType(aRelationType);
86 0 : return relationByType.RelationType != defaultRelation.RelationType;
87 : }
88 :
89 0 : AccessibleRelation AccessibleRelationSetHelperImpl::getRelationByType( sal_Int16 aRelationType )
90 : throw (uno::RuntimeException)
91 : {
92 0 : sal_Int32 nCount(getRelationCount());
93 0 : sal_Int32 i(0);
94 0 : sal_Bool bFound(sal_False);
95 0 : while ((i < nCount) && !bFound)
96 : {
97 0 : if (maRelations[i].RelationType == aRelationType)
98 0 : return maRelations[i];
99 : else
100 0 : i++;
101 : }
102 0 : return AccessibleRelation();
103 : }
104 :
105 0 : void AccessibleRelationSetHelperImpl::AddRelation(const AccessibleRelation& rRelation)
106 : throw (uno::RuntimeException)
107 : {
108 0 : sal_Int32 nCount(getRelationCount());
109 0 : sal_Int32 i(0);
110 0 : sal_Bool bFound(sal_False);
111 0 : while ((i < nCount) && !bFound)
112 : {
113 0 : if (maRelations[i].RelationType == rRelation.RelationType)
114 0 : bFound = sal_True;
115 : else
116 0 : i++;
117 : }
118 0 : if (bFound)
119 0 : maRelations[i].TargetSet = comphelper::concatSequences(maRelations[i].TargetSet, rRelation.TargetSet);
120 : else
121 0 : maRelations.push_back(rRelation);
122 0 : }
123 :
124 : //===== internal ============================================================
125 :
126 0 : AccessibleRelationSetHelper::AccessibleRelationSetHelper ()
127 0 : : mpHelperImpl(NULL)
128 : {
129 0 : mpHelperImpl = new AccessibleRelationSetHelperImpl();
130 0 : }
131 :
132 0 : AccessibleRelationSetHelper::AccessibleRelationSetHelper (const AccessibleRelationSetHelper& rHelper)
133 : : cppu::WeakImplHelper1<XAccessibleRelationSet>()
134 0 : , mpHelperImpl(NULL)
135 : {
136 0 : if (rHelper.mpHelperImpl)
137 0 : mpHelperImpl = new AccessibleRelationSetHelperImpl(*rHelper.mpHelperImpl);
138 : else
139 0 : mpHelperImpl = new AccessibleRelationSetHelperImpl();
140 0 : }
141 :
142 0 : AccessibleRelationSetHelper::~AccessibleRelationSetHelper(void)
143 : {
144 0 : delete mpHelperImpl;
145 0 : }
146 :
147 : //===== XAccessibleRelationSet ==============================================
148 :
149 : /** Returns the number of relations in this relation set.
150 :
151 : @return
152 : Returns the number of relations or zero if there are none.
153 : */
154 : sal_Int32 SAL_CALL
155 0 : AccessibleRelationSetHelper::getRelationCount( )
156 : throw (uno::RuntimeException)
157 : {
158 0 : osl::MutexGuard aGuard (maMutex);
159 0 : return mpHelperImpl->getRelationCount();
160 : }
161 :
162 : /** Returns the relation of this relation set that is specified by
163 : the given index.
164 :
165 : @param nIndex
166 : This index specifies the relatio to return.
167 :
168 : @return
169 : For a valid index, i.e. inside the range 0 to the number of
170 : relations minus one, the returned value is the requested
171 : relation. If the index is invalid then the returned relation
172 : has the type INVALID.
173 :
174 : */
175 : AccessibleRelation SAL_CALL
176 0 : AccessibleRelationSetHelper::getRelation( sal_Int32 nIndex )
177 : throw (lang::IndexOutOfBoundsException,
178 : uno::RuntimeException)
179 : {
180 0 : osl::MutexGuard aGuard (maMutex);
181 0 : return mpHelperImpl->getRelation(nIndex);
182 : }
183 :
184 : /** Tests whether the relation set contains a relation matching the
185 : specified key.
186 :
187 : @param aRelationType
188 : The type of relation to look for in this set of relations. This
189 : has to be one of the constants of
190 : <type>AccessibleRelationType</type>.
191 :
192 : @return
193 : Returns <TRUE/> if there is a (at least one) relation of the
194 : given type and <FALSE/> if there is no such relation in the set.
195 : */
196 : sal_Bool SAL_CALL
197 0 : AccessibleRelationSetHelper::containsRelation( sal_Int16 aRelationType )
198 : throw (uno::RuntimeException)
199 : {
200 0 : osl::MutexGuard aGuard (maMutex);
201 0 : return mpHelperImpl->containsRelation(aRelationType);
202 : }
203 :
204 : /** Retrieve and return the relation with the given relation type.
205 :
206 : @param aRelationType
207 : The type of the relation to return. This has to be one of the
208 : constants of <type>AccessibleRelationType</type>.
209 :
210 : @return
211 : If a relation with the given type could be found than (a copy
212 : of) this relation is returned. Otherwise a relation with the
213 : type INVALID is returned.
214 : */
215 : AccessibleRelation SAL_CALL
216 0 : AccessibleRelationSetHelper::getRelationByType( sal_Int16 aRelationType )
217 : throw (uno::RuntimeException)
218 : {
219 0 : osl::MutexGuard aGuard (maMutex);
220 0 : return mpHelperImpl->getRelationByType(aRelationType);
221 : }
222 :
223 0 : void AccessibleRelationSetHelper::AddRelation(const AccessibleRelation& rRelation)
224 : throw (uno::RuntimeException)
225 : {
226 0 : osl::MutexGuard aGuard (maMutex);
227 0 : mpHelperImpl->AddRelation(rRelation);
228 0 : }
229 :
230 : //===== XTypeProvider =======================================================
231 :
232 : uno::Sequence< ::com::sun::star::uno::Type>
233 0 : AccessibleRelationSetHelper::getTypes (void)
234 : throw (::com::sun::star::uno::RuntimeException)
235 : {
236 0 : osl::MutexGuard aGuard (maMutex);
237 : const ::com::sun::star::uno::Type aTypeList[] = {
238 : ::getCppuType((const uno::Reference<
239 0 : XAccessibleRelationSet>*)0),
240 : ::getCppuType((const uno::Reference<
241 0 : lang::XTypeProvider>*)0)
242 0 : };
243 : ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type>
244 0 : aTypeSequence (aTypeList, 2);
245 0 : return aTypeSequence;
246 : }
247 :
248 : namespace
249 : {
250 : class theAccessibleRelationSetHelperUnoTunnelId : public rtl::Static< UnoTunnelIdInit, theAccessibleRelationSetHelperUnoTunnelId > {};
251 : }
252 :
253 : uno::Sequence<sal_Int8> SAL_CALL
254 0 : AccessibleRelationSetHelper::getImplementationId (void)
255 : throw (::com::sun::star::uno::RuntimeException)
256 : {
257 0 : return theAccessibleRelationSetHelperUnoTunnelId::get().getSeq();
258 : }
259 :
260 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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