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2 *
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11 * http://www.apache.org/licenses/LICENSE-2.0
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21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_comphelper.hxx"
26 #include <comphelper/enumhelper.hxx>
27 #include <com/sun/star/lang/XComponent.hpp>
28
29 //.........................................................................
30 namespace comphelper
31 {
32 //.........................................................................
33
34 //==================================================================
35 //= OEnumerationByName
36 //==================================================================
37 //------------------------------------------------------------------------------
OEnumerationByName(const staruno::Reference<starcontainer::XNameAccess> & _rxAccess)38 OEnumerationByName::OEnumerationByName(const staruno::Reference<starcontainer::XNameAccess>& _rxAccess)
39 :m_aNames(_rxAccess->getElementNames())
40 ,m_nPos(0)
41 ,m_xAccess(_rxAccess)
42 ,m_bListening(sal_False)
43 {
44 impl_startDisposeListening();
45 }
46
47 //------------------------------------------------------------------------------
OEnumerationByName(const staruno::Reference<starcontainer::XNameAccess> & _rxAccess,const staruno::Sequence<::rtl::OUString> & _aNames)48 OEnumerationByName::OEnumerationByName(const staruno::Reference<starcontainer::XNameAccess>& _rxAccess,
49 const staruno::Sequence< ::rtl::OUString >& _aNames )
50 :m_aNames(_aNames)
51 ,m_nPos(0)
52 ,m_xAccess(_rxAccess)
53 ,m_bListening(sal_False)
54 {
55 impl_startDisposeListening();
56 }
57
58 //------------------------------------------------------------------------------
~OEnumerationByName()59 OEnumerationByName::~OEnumerationByName()
60 {
61 impl_stopDisposeListening();
62 }
63
64 //------------------------------------------------------------------------------
hasMoreElements()65 sal_Bool SAL_CALL OEnumerationByName::hasMoreElements( )
66 {
67 ::osl::ResettableMutexGuard aLock(m_aLock);
68
69 if (m_xAccess.is() && m_aNames.getLength() > m_nPos)
70 return sal_True;
71
72 if (m_xAccess.is())
73 {
74 impl_stopDisposeListening();
75 m_xAccess.clear();
76 }
77
78 return sal_False;
79 }
80
81 //------------------------------------------------------------------------------
nextElement()82 staruno::Any SAL_CALL OEnumerationByName::nextElement( )
83 {
84 ::osl::ResettableMutexGuard aLock(m_aLock);
85
86 staruno::Any aRes;
87 if (m_xAccess.is() && m_nPos < m_aNames.getLength())
88 aRes = m_xAccess->getByName(m_aNames.getConstArray()[m_nPos++]);
89
90 if (m_xAccess.is() && m_nPos >= m_aNames.getLength())
91 {
92 impl_stopDisposeListening();
93 m_xAccess.clear();
94 }
95
96 if (!aRes.hasValue()) // es gibt kein Element mehr
97 throw starcontainer::NoSuchElementException();
98
99 return aRes;
100 }
101
102 //------------------------------------------------------------------------------
disposing(const starlang::EventObject & aEvent)103 void SAL_CALL OEnumerationByName::disposing(const starlang::EventObject& aEvent)
104 {
105 ::osl::ResettableMutexGuard aLock(m_aLock);
106
107 if (aEvent.Source == m_xAccess)
108 m_xAccess.clear();
109 }
110
111 //------------------------------------------------------------------------------
impl_startDisposeListening()112 void OEnumerationByName::impl_startDisposeListening()
113 {
114 ::osl::ResettableMutexGuard aLock(m_aLock);
115
116 if (m_bListening)
117 return;
118
119 ++m_refCount;
120 staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
121 if (xDisposable.is())
122 {
123 xDisposable->addEventListener(this);
124 m_bListening = sal_True;
125 }
126 --m_refCount;
127 }
128
129 //------------------------------------------------------------------------------
impl_stopDisposeListening()130 void OEnumerationByName::impl_stopDisposeListening()
131 {
132 ::osl::ResettableMutexGuard aLock(m_aLock);
133
134 if (!m_bListening)
135 return;
136
137 ++m_refCount;
138 staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
139 if (xDisposable.is())
140 {
141 xDisposable->removeEventListener(this);
142 m_bListening = sal_False;
143 }
144 --m_refCount;
145 }
146
147 //==================================================================
148 //= OEnumerationByIndex
149 //==================================================================
150 //------------------------------------------------------------------------------
OEnumerationByIndex(const staruno::Reference<starcontainer::XIndexAccess> & _rxAccess)151 OEnumerationByIndex::OEnumerationByIndex(const staruno::Reference< starcontainer::XIndexAccess >& _rxAccess)
152 :m_nPos(0)
153 ,m_xAccess(_rxAccess)
154 ,m_bListening(sal_False)
155 {
156 impl_startDisposeListening();
157 }
158
159 //------------------------------------------------------------------------------
~OEnumerationByIndex()160 OEnumerationByIndex::~OEnumerationByIndex()
161 {
162 impl_stopDisposeListening();
163 }
164
165 //------------------------------------------------------------------------------
hasMoreElements()166 sal_Bool SAL_CALL OEnumerationByIndex::hasMoreElements( )
167 {
168 ::osl::ResettableMutexGuard aLock(m_aLock);
169
170 if (m_xAccess.is() && m_xAccess->getCount() > m_nPos)
171 return sal_True;
172
173 if (m_xAccess.is())
174 {
175 impl_stopDisposeListening();
176 m_xAccess.clear();
177 }
178
179 return sal_False;
180 }
181
182 //------------------------------------------------------------------------------
nextElement()183 staruno::Any SAL_CALL OEnumerationByIndex::nextElement( )
184 {
185 ::osl::ResettableMutexGuard aLock(m_aLock);
186
187 staruno::Any aRes;
188 if (m_xAccess.is() && m_nPos < m_xAccess->getCount())
189 aRes = m_xAccess->getByIndex(m_nPos++);
190
191 if (m_xAccess.is() && m_nPos >= m_xAccess->getCount())
192 {
193 impl_stopDisposeListening();
194 m_xAccess.clear();
195 }
196
197 if (!aRes.hasValue()) // es gibt kein Element mehr
198 throw starcontainer::NoSuchElementException();
199 return aRes;
200 }
201
202 //------------------------------------------------------------------------------
disposing(const starlang::EventObject & aEvent)203 void SAL_CALL OEnumerationByIndex::disposing(const starlang::EventObject& aEvent)
204 {
205 ::osl::ResettableMutexGuard aLock(m_aLock);
206
207 if (aEvent.Source == m_xAccess)
208 m_xAccess.clear();
209 }
210
211 //------------------------------------------------------------------------------
impl_startDisposeListening()212 void OEnumerationByIndex::impl_startDisposeListening()
213 {
214 ::osl::ResettableMutexGuard aLock(m_aLock);
215
216 if (m_bListening)
217 return;
218
219 ++m_refCount;
220 staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
221 if (xDisposable.is())
222 {
223 xDisposable->addEventListener(this);
224 m_bListening = sal_True;
225 }
226 --m_refCount;
227 }
228
229 //------------------------------------------------------------------------------
impl_stopDisposeListening()230 void OEnumerationByIndex::impl_stopDisposeListening()
231 {
232 ::osl::ResettableMutexGuard aLock(m_aLock);
233
234 if (!m_bListening)
235 return;
236
237 ++m_refCount;
238 staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
239 if (xDisposable.is())
240 {
241 xDisposable->removeEventListener(this);
242 m_bListening = sal_False;
243 }
244 --m_refCount;
245 }
246
247 //==================================================================
248 //= OAnyEnumeration
249 //==================================================================
250
251 //------------------------------------------------------------------------------
OAnyEnumeration(const staruno::Sequence<staruno::Any> & lItems)252 OAnyEnumeration::OAnyEnumeration(const staruno::Sequence< staruno::Any >& lItems)
253 :m_nPos(0)
254 ,m_lItems(lItems)
255 {
256 }
257
258 //------------------------------------------------------------------------------
~OAnyEnumeration()259 OAnyEnumeration::~OAnyEnumeration()
260 {
261 }
262
263 //------------------------------------------------------------------------------
hasMoreElements()264 sal_Bool SAL_CALL OAnyEnumeration::hasMoreElements( )
265 {
266 ::osl::ResettableMutexGuard aLock(m_aLock);
267
268 return (m_lItems.getLength() > m_nPos);
269 }
270
271 //------------------------------------------------------------------------------
nextElement()272 staruno::Any SAL_CALL OAnyEnumeration::nextElement( )
273 {
274 if ( ! hasMoreElements())
275 throw starcontainer::NoSuchElementException();
276
277 ::osl::ResettableMutexGuard aLock(m_aLock);
278 sal_Int32 nPos = m_nPos;
279 ++m_nPos;
280 return m_lItems[nPos];
281 }
282
283 //.........................................................................
284 } // namespace comphelper
285 //.........................................................................
286