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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 : #ifndef COMPHELPER_PROXY_AGGREGATION
21 : #define COMPHELPER_PROXY_AGGREGATION
22 :
23 : #include <com/sun/star/uno/XAggregation.hpp>
24 : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
25 : #include <com/sun/star/lang/XComponent.hpp>
26 : #include <cppuhelper/implbase1.hxx>
27 : #include <cppuhelper/interfacecontainer.hxx>
28 : #include <comphelper/uno3.hxx>
29 : #include <comphelper/broadcasthelper.hxx>
30 : #include <cppuhelper/compbase_ex.hxx>
31 : #include <comphelper/comphelperdllapi.h>
32 :
33 : namespace com { namespace sun { namespace star { namespace uno {
34 : class XComponentContext;
35 : } } } }
36 :
37 : /* class hierarchy herein:
38 :
39 : +-------------------+ helper class for aggregating the proxy to another object
40 : | OProxyAggregation | - not ref counted
41 : +-------------------+ - no UNO implementation, i.e. not derived from XInterface
42 : ^ (neither direct nor indirect)
43 : |
44 : |
45 : +----------------------------------+ helper class for aggregating a proxy to an XComponent
46 : | OComponentProxyAggregationHelper | - life time coupling: if the inner component (the "aggregate")
47 : +----------------------------------+ is disposed, the outer (the delegator) is disposed, too, and
48 : ^ vice versa
49 : | - UNO based, implementing XEventListener
50 : |
51 : +----------------------------+ component aggregating another XComponent
52 : | OComponentProxyAggregation | - life time coupling as above
53 : +----------------------------+ - ref-counted
54 : - implements an XComponent itself
55 :
56 : If you need to
57 :
58 : - wrap a foreign object which is a XComponent
59 : => use OComponentProxyAggregation
60 : - call componentAggregateProxyFor in your ctor
61 : - call implEnsureDisposeInDtor in your dtor
62 :
63 : - wrap a foreign object which is a XComponent, but already have ref-counting mechanisms
64 : inherited from somewhere else
65 : => use OComponentProxyAggregationHelper
66 : - override dispose - don't forget to call the base class' dispose!
67 : - call componentAggregateProxyFor in your ctor
68 :
69 : - wrap a foreign object which is no XComponent
70 : => use OProxyAggregation
71 : - call baseAggregateProxyFor in your ctor
72 : */
73 :
74 :
75 : namespace comphelper
76 : {
77 :
78 :
79 :
80 : //= OProxyAggregation
81 :
82 : /** helper class for aggregating a proxy for a foreign object
83 : */
84 : class OProxyAggregation
85 : {
86 : private:
87 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XAggregation > m_xProxyAggregate;
88 : ::com::sun::star::uno::Reference< ::com::sun::star::lang::XTypeProvider > m_xProxyTypeAccess;
89 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > m_xContext;
90 :
91 : protected:
92 0 : inline const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& getComponentContext()
93 : {
94 0 : return m_xContext;
95 : }
96 :
97 : protected:
98 : OProxyAggregation( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext );
99 : ~OProxyAggregation();
100 :
101 : /// to be called from within your ctor
102 : void baseAggregateProxyFor(
103 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxComponent,
104 : oslInterlockedCount& _rRefCount,
105 : ::cppu::OWeakObject& _rDelegator
106 : );
107 :
108 : // XInterface and XTypeProvider
109 : ::com::sun::star::uno::Any SAL_CALL queryAggregation( const ::com::sun::star::uno::Type& _rType ) throw (::com::sun::star::uno::RuntimeException);
110 : ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes( ) throw (::com::sun::star::uno::RuntimeException);
111 :
112 : private:
113 : OProxyAggregation( ); // never implemented
114 : OProxyAggregation( const OProxyAggregation& ); // never implemented
115 : OProxyAggregation& operator=( const OProxyAggregation& ); // never implemented
116 : };
117 :
118 :
119 : //= OComponentProxyAggregationHelper
120 :
121 : /** a helper class for aggregating a proxy to an XComponent
122 :
123 : <p>The object couples the life time of itself and the component: if one of the both
124 : dies (in a sense of being disposed), the other one dies, too.</p>
125 :
126 : <p>The class itself does not implement XComponent so you need to forward any XComponent::dispose
127 : calls which your derived class gets to the dispose method of this class.</p>
128 : */
129 :
130 : class COMPHELPER_DLLPUBLIC OComponentProxyAggregationHelper :public ::cppu::ImplHelper1 < com::sun::star::lang::XEventListener
131 : >
132 : ,private OProxyAggregation
133 : {
134 : private:
135 : typedef ::cppu::ImplHelper1 < ::com::sun::star::lang::XEventListener
136 : > BASE; // prevents some MSVC problems
137 :
138 : protected:
139 : ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >
140 : m_xInner;
141 : ::cppu::OBroadcastHelper& m_rBHelper;
142 :
143 : protected:
144 : // OProxyAggregation
145 : using OProxyAggregation::getComponentContext;
146 :
147 : // XInterface
148 : ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type& _rType ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
149 :
150 : // XTypeProvider
151 : DECLARE_XTYPEPROVIDER( )
152 :
153 : protected:
154 : OComponentProxyAggregationHelper(
155 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext,
156 : ::cppu::OBroadcastHelper& _rBHelper
157 : );
158 : virtual ~OComponentProxyAggregationHelper( );
159 :
160 : /// to be called from within your ctor
161 : void componentAggregateProxyFor(
162 : const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >& _rxComponent,
163 : oslInterlockedCount& _rRefCount,
164 : ::cppu::OWeakObject& _rDelegator
165 : );
166 :
167 : // XEventListener
168 : virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
169 :
170 : // XComponent
171 : virtual void SAL_CALL dispose() throw( ::com::sun::star::uno::RuntimeException, std::exception ) = 0;
172 :
173 : private:
174 : COMPHELPER_DLLPRIVATE OComponentProxyAggregationHelper( ); // never implemented
175 : COMPHELPER_DLLPRIVATE OComponentProxyAggregationHelper( const OComponentProxyAggregationHelper& ); // never implemented
176 : COMPHELPER_DLLPRIVATE OComponentProxyAggregationHelper& operator=( const OComponentProxyAggregationHelper& ); // never implemented
177 : };
178 :
179 :
180 : //= OComponentProxyAggregation
181 :
182 : class COMPHELPER_DLLPUBLIC OComponentProxyAggregation :public OBaseMutex
183 : ,public cppu::WeakComponentImplHelperBase
184 : ,public OComponentProxyAggregationHelper
185 : {
186 : protected:
187 : OComponentProxyAggregation(
188 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext,
189 : const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >& _rxComponent
190 : );
191 :
192 : virtual ~OComponentProxyAggregation();
193 :
194 : // XInterface
195 : DECLARE_XINTERFACE()
196 : // XTypeProvider
197 : DECLARE_XTYPEPROVIDER()
198 :
199 : // OComponentHelper
200 : virtual void SAL_CALL disposing() throw (::com::sun::star::uno::RuntimeException) SAL_OVERRIDE;
201 :
202 : // XEventListener
203 : virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& _rSource ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
204 :
205 : // XComponent/OComponentProxyAggregationHelper
206 : virtual void SAL_CALL dispose() throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
207 :
208 : protected:
209 : // be called from within the dtor of derived classes
210 : void implEnsureDisposeInDtor( );
211 :
212 : private:
213 : COMPHELPER_DLLPRIVATE OComponentProxyAggregation( ); // never implemented
214 : COMPHELPER_DLLPRIVATE OComponentProxyAggregation( const OComponentProxyAggregation& ); // never implemented
215 : COMPHELPER_DLLPRIVATE OComponentProxyAggregation& operator=( const OComponentProxyAggregation& ); // never implemented
216 : };
217 :
218 :
219 : } // namespace comphelper
220 :
221 :
222 :
223 : #endif // COMPHELPER_PROXY_AGGREGATION
224 :
225 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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