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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 : : #ifndef _UNO_CURRENT_CONTEXT_HXX_
20 : : #define _UNO_CURRENT_CONTEXT_HXX_
21 : :
22 : : #include <uno/current_context.h>
23 : :
24 : : #include <com/sun/star/uno/XCurrentContext.hpp>
25 : :
26 : :
27 : : namespace com
28 : : {
29 : : namespace sun
30 : : {
31 : : namespace star
32 : : {
33 : : namespace uno
34 : : {
35 : :
36 : : /** Getting the current context.
37 : : @attention
38 : : Don't spread the returned interface around to other threads. Every thread has its own
39 : : current context.
40 : :
41 : : @return current context or null ref, if none is set
42 : : */
43 : 1070 : inline Reference< XCurrentContext > SAL_CALL getCurrentContext()
44 : : SAL_THROW(())
45 : : {
46 : 1070 : Reference< XCurrentContext > xRet;
47 [ + - ]: 1070 : ::rtl::OUString aEnvTypeName( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) );
48 : 1070 : ::uno_getCurrentContext( (void **)&xRet, aEnvTypeName.pData, 0 );
49 : 1070 : return xRet;
50 : : }
51 : : /** Setting the current context.
52 : :
53 : : @param xContext current context to be set
54 : : @return true, if context has been successfully set
55 : : */
56 : 424 : inline bool SAL_CALL setCurrentContext(
57 : : Reference< XCurrentContext > const & xContext )
58 : : SAL_THROW(())
59 : : {
60 [ + - ]: 424 : ::rtl::OUString aEnvTypeName( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) );
61 [ + - ]: 424 : return (::uno_setCurrentContext( xContext.get(), aEnvTypeName.pData, 0 ) != sal_False);
62 : : }
63 : :
64 : : /** Objects of this class are used for applying a current context until they are destructed, i.e.
65 : : the ctor of this class saves the previous and sets the given context while the dtor restores
66 : : the previous one upon destruction.
67 : : */
68 : : class ContextLayer
69 : : {
70 : : /** this C++ environment type name.
71 : : */
72 : : ::rtl::OUString m_aEnvTypeName;
73 : : /** previous context
74 : : */
75 : : Reference< XCurrentContext > m_xPreviousContext;
76 : :
77 : : public:
78 : : /** Constructor: Saves the previous context and sets the new (given) one.
79 : :
80 : : @param xNewContext new context to be set
81 : : */
82 : : inline ContextLayer(
83 : : Reference< XCurrentContext > const & xNewContext = Reference< XCurrentContext >() )
84 : : SAL_THROW(());
85 : : /** Destructor: restores the previous context.
86 : : */
87 : : inline ~ContextLayer() SAL_THROW(());
88 : :
89 : : /** Gets the previously set context.
90 : :
91 : : @return the previously set context
92 : : */
93 : : inline Reference< XCurrentContext > SAL_CALL getPreviousContext() const
94 : : SAL_THROW(())
95 : : { return m_xPreviousContext; }
96 : : };
97 : : //__________________________________________________________________________________________________
98 : 328 : inline ContextLayer::ContextLayer( Reference< XCurrentContext > const & xNewContext )
99 : : SAL_THROW(())
100 : 328 : : m_aEnvTypeName( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) )
101 : : {
102 : 328 : ::uno_getCurrentContext( (void **)&m_xPreviousContext, m_aEnvTypeName.pData, 0 );
103 [ + - ]: 328 : ::uno_setCurrentContext( xNewContext.get(), m_aEnvTypeName.pData, 0 );
104 : 328 : }
105 : : //__________________________________________________________________________________________________
106 : 328 : inline ContextLayer::~ContextLayer()
107 : : SAL_THROW(())
108 : : {
109 [ + - ]: 328 : ::uno_setCurrentContext( m_xPreviousContext.get(), m_aEnvTypeName.pData, 0 );
110 : 328 : }
111 : :
112 : : }
113 : : }
114 : : }
115 : : }
116 : :
117 : : #endif
118 : :
119 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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