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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 <comphelper/proxyaggregation.hxx>
21 : #include <com/sun/star/reflection/ProxyFactory.hpp>
22 :
23 : //.............................................................................
24 : namespace comphelper
25 : {
26 : //.............................................................................
27 :
28 : using namespace ::com::sun::star::uno;
29 : using namespace ::com::sun::star::lang;
30 : using namespace ::com::sun::star::reflection;
31 :
32 : //=========================================================================
33 : //= OProxyAggregation
34 : //=========================================================================
35 : //-------------------------------------------------------------------------
36 0 : OProxyAggregation::OProxyAggregation( const Reference< XComponentContext >& _rxContext )
37 0 : :m_xContext( _rxContext )
38 : {
39 0 : }
40 :
41 : //-------------------------------------------------------------------------
42 0 : void OProxyAggregation::baseAggregateProxyFor( const Reference< XInterface >& _rxComponent, oslInterlockedCount& _rRefCount,
43 : ::cppu::OWeakObject& _rDelegator )
44 : {
45 : // first a factory for the proxy
46 0 : Reference< XProxyFactory > xFactory = ProxyFactory::create( m_xContext );
47 :
48 : // then the proxy itself
49 : { // i36686 OJ: achieve the desctruction of the tempoary -> otherwise it leads to _rRefCount -= 2
50 0 : m_xProxyAggregate = xFactory->createProxy( _rxComponent );
51 : }
52 0 : if ( m_xProxyAggregate.is() )
53 0 : m_xProxyAggregate->queryAggregation( ::getCppuType( &m_xProxyTypeAccess ) ) >>= m_xProxyTypeAccess;
54 :
55 : // aggregate the proxy
56 0 : osl_atomic_increment( &_rRefCount );
57 0 : if ( m_xProxyAggregate.is() )
58 : {
59 : // At this point in time, the proxy has a ref count of exactly two - in m_xControlContextProxy,
60 : // and in m_xProxyTypeAccess.
61 : // Remember to _not_ reset these members unless the delegator of the proxy has been reset, too!
62 0 : m_xProxyAggregate->setDelegator( _rDelegator );
63 : }
64 0 : osl_atomic_decrement( &_rRefCount );
65 0 : }
66 :
67 : //-------------------------------------------------------------------------
68 0 : Any SAL_CALL OProxyAggregation::queryAggregation( const Type& _rType ) throw (RuntimeException)
69 : {
70 0 : return m_xProxyAggregate.is() ? m_xProxyAggregate->queryAggregation( _rType ) : Any();
71 : }
72 :
73 : //-------------------------------------------------------------------------
74 0 : Sequence< Type > SAL_CALL OProxyAggregation::getTypes( ) throw (RuntimeException)
75 : {
76 0 : Sequence< Type > aTypes;
77 0 : if ( m_xProxyAggregate.is() )
78 : {
79 0 : if ( m_xProxyTypeAccess.is() )
80 0 : aTypes = m_xProxyTypeAccess->getTypes();
81 : }
82 0 : return aTypes;
83 : }
84 :
85 : //-------------------------------------------------------------------------
86 0 : OProxyAggregation::~OProxyAggregation()
87 : {
88 0 : if ( m_xProxyAggregate.is() )
89 0 : m_xProxyAggregate->setDelegator( NULL );
90 0 : m_xProxyAggregate.clear();
91 0 : m_xProxyTypeAccess.clear();
92 : // this should remove the _two_only_ "real" references (means not delegated to
93 : // ourself) to this proxy, and thus delete it
94 0 : }
95 :
96 : //=========================================================================
97 : //= OComponentProxyAggregationHelper
98 : //=========================================================================
99 : //-------------------------------------------------------------------------
100 0 : OComponentProxyAggregationHelper::OComponentProxyAggregationHelper( const Reference< XComponentContext >& _rxContext,
101 : ::cppu::OBroadcastHelper& _rBHelper )
102 : :OProxyAggregation( _rxContext )
103 0 : ,m_rBHelper( _rBHelper )
104 : {
105 : OSL_ENSURE( _rxContext.is(), "OComponentProxyAggregationHelper::OComponentProxyAggregationHelper: invalid arguments!" );
106 0 : }
107 :
108 : //-------------------------------------------------------------------------
109 0 : void OComponentProxyAggregationHelper::componentAggregateProxyFor(
110 : const Reference< XComponent >& _rxComponent, oslInterlockedCount& _rRefCount,
111 : ::cppu::OWeakObject& _rDelegator )
112 : {
113 : OSL_ENSURE( _rxComponent.is(), "OComponentProxyAggregationHelper::componentAggregateProxyFor: invalid inner component!" );
114 0 : m_xInner = _rxComponent;
115 :
116 : // aggregate a proxy for the object
117 0 : baseAggregateProxyFor( m_xInner.get(), _rRefCount, _rDelegator );
118 :
119 : // add as event listener to the inner context, because we want to be notified of disposals
120 0 : osl_atomic_increment( &_rRefCount );
121 : {
122 0 : if ( m_xInner.is() )
123 0 : m_xInner->addEventListener( this );
124 : }
125 0 : osl_atomic_decrement( &_rRefCount );
126 0 : }
127 :
128 : //-------------------------------------------------------------------------
129 0 : Any SAL_CALL OComponentProxyAggregationHelper::queryInterface( const Type& _rType ) throw (RuntimeException)
130 : {
131 0 : Any aReturn( BASE::queryInterface( _rType ) );
132 0 : if ( !aReturn.hasValue() )
133 0 : aReturn = OProxyAggregation::queryAggregation( _rType );
134 0 : return aReturn;
135 : }
136 :
137 : //-------------------------------------------------------------------------
138 0 : IMPLEMENT_FORWARD_XTYPEPROVIDER2( OComponentProxyAggregationHelper, BASE, OProxyAggregation )
139 :
140 : //-------------------------------------------------------------------------
141 0 : OComponentProxyAggregationHelper::~OComponentProxyAggregationHelper( )
142 : {
143 : OSL_ENSURE( m_rBHelper.bDisposed, "OComponentProxyAggregationHelper::~OComponentProxyAggregationHelper: you should dispose your derived class in the dtor, if necessary!" );
144 : // if this asserts, add the following to your derived class dtor:
145 : //
146 : // if ( !m_rBHelper.bDisposed )
147 : // {
148 : // acquire(); // to prevent duplicate dtor calls
149 : // dispose();
150 : // }
151 :
152 0 : m_xInner.clear();
153 0 : }
154 :
155 : //-------------------------------------------------------------------------
156 0 : void SAL_CALL OComponentProxyAggregationHelper::disposing( const EventObject& _rSource ) throw (RuntimeException)
157 : {
158 0 : if ( _rSource.Source == m_xInner )
159 : { // it's our inner context which is dying -> dispose ourself
160 0 : if ( !m_rBHelper.bDisposed && !m_rBHelper.bInDispose )
161 : { // (if necessary only, of course)
162 0 : dispose();
163 : }
164 : }
165 0 : }
166 :
167 : //-------------------------------------------------------------------------
168 0 : void SAL_CALL OComponentProxyAggregationHelper::dispose() throw( RuntimeException )
169 : {
170 0 : ::osl::MutexGuard aGuard( m_rBHelper.rMutex );
171 :
172 : // dispose our inner context
173 : // before we do this, remove ourself as listener - else in disposing( EventObject ), we
174 : // would dispose ourself a second time
175 0 : Reference< XComponent > xComp( m_xInner, UNO_QUERY );
176 0 : if ( xComp.is() )
177 : {
178 0 : xComp->removeEventListener( this );
179 0 : xComp->dispose();
180 0 : xComp.clear();
181 0 : }
182 0 : }
183 :
184 : //=========================================================================
185 : //= OComponentProxyAggregation
186 : //=========================================================================
187 : //-------------------------------------------------------------------------
188 0 : OComponentProxyAggregation::OComponentProxyAggregation( const Reference< XComponentContext >& _rxContext,
189 : const Reference< XComponent >& _rxComponent )
190 : :OComponentProxyAggregation_CBase( m_aMutex )
191 0 : ,OComponentProxyAggregationHelper( _rxContext, rBHelper )
192 : {
193 : OSL_ENSURE( _rxComponent.is(), "OComponentProxyAggregation::OComponentProxyAggregation: accessible is no XComponent!" );
194 0 : if ( _rxComponent.is() )
195 0 : componentAggregateProxyFor( _rxComponent, m_refCount, *this );
196 0 : }
197 :
198 : //-------------------------------------------------------------------------
199 0 : OComponentProxyAggregation::~OComponentProxyAggregation()
200 : {
201 0 : implEnsureDisposeInDtor( );
202 0 : }
203 :
204 : //-------------------------------------------------------------------------
205 0 : IMPLEMENT_FORWARD_XINTERFACE2( OComponentProxyAggregation, OComponentProxyAggregation_CBase, OComponentProxyAggregationHelper )
206 :
207 : //-------------------------------------------------------------------------
208 0 : IMPLEMENT_GET_IMPLEMENTATION_ID( OComponentProxyAggregation )
209 :
210 : //-------------------------------------------------------------------------
211 0 : Sequence< Type > SAL_CALL OComponentProxyAggregation::getTypes( ) throw (RuntimeException)
212 : {
213 0 : Sequence< Type > aTypes( OComponentProxyAggregationHelper::getTypes() );
214 :
215 : // append XComponent, coming from OComponentProxyAggregation_CBase
216 0 : sal_Int32 nLen = aTypes.getLength();
217 0 : aTypes.realloc( nLen + 1 );
218 0 : aTypes[ nLen ] = ::getCppuType( static_cast< Reference< XComponent >* >( NULL ) );
219 :
220 0 : return aTypes;
221 : }
222 :
223 : //-------------------------------------------------------------------------
224 0 : void OComponentProxyAggregation::implEnsureDisposeInDtor( )
225 : {
226 0 : if ( !rBHelper.bDisposed )
227 : {
228 0 : acquire(); // to prevent duplicate dtor calls
229 0 : dispose();
230 : }
231 0 : }
232 :
233 : //--------------------------------------------------------------------
234 0 : void SAL_CALL OComponentProxyAggregation::disposing( const EventObject& _rSource ) throw (RuntimeException)
235 : {
236 : // simly disambiguate - this is necessary for MSVC to distinguish
237 : // "disposing( EventObject )" from "disposing()"
238 0 : OComponentProxyAggregationHelper::disposing( _rSource );
239 0 : }
240 :
241 : //--------------------------------------------------------------------
242 0 : void SAL_CALL OComponentProxyAggregation::disposing() throw (RuntimeException)
243 : {
244 : // call the dispose-functionality of the base, which will dispose our aggregated component
245 0 : OComponentProxyAggregationHelper::dispose();
246 0 : }
247 :
248 : //--------------------------------------------------------------------
249 0 : void SAL_CALL OComponentProxyAggregation::dispose() throw( RuntimeException )
250 : {
251 : // simply disambiguate
252 0 : OComponentProxyAggregation_CBase::dispose();
253 0 : }
254 :
255 :
256 : //.............................................................................
257 : } // namespace comphelper
258 : //.............................................................................
259 :
260 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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