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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 :
21 : #include "formfeaturedispatcher.hxx"
22 :
23 : #include <comphelper/namedvaluecollection.hxx>
24 : #include <tools/diagnose_ex.h>
25 :
26 :
27 : namespace svx
28 : {
29 :
30 :
31 : using namespace ::com::sun::star::uno;
32 : using namespace ::com::sun::star::lang;
33 : using namespace ::com::sun::star::frame;
34 : using namespace ::com::sun::star::beans;
35 : using namespace ::com::sun::star::util;
36 : using namespace ::com::sun::star::form::runtime;
37 :
38 :
39 : //= OSingleFeatureDispatcher
40 :
41 :
42 0 : OSingleFeatureDispatcher::OSingleFeatureDispatcher( const URL& _rFeatureURL, const sal_Int16 _nFormFeature,
43 : const Reference< XFormOperations >& _rxFormOperations, ::osl::Mutex& _rMutex )
44 : :m_rMutex( _rMutex )
45 : ,m_aStatusListeners( _rMutex )
46 : ,m_xFormOperations( _rxFormOperations )
47 : ,m_aFeatureURL( _rFeatureURL )
48 : ,m_nFormFeature( _nFormFeature )
49 : ,m_bLastKnownEnabled( sal_False )
50 0 : ,m_bDisposed( sal_False )
51 : {
52 0 : }
53 :
54 :
55 0 : void OSingleFeatureDispatcher::getUnoState( FeatureStateEvent& /* [out] */ _rState ) const
56 : {
57 0 : _rState.Source = *const_cast< OSingleFeatureDispatcher* >( this );
58 :
59 0 : FeatureState aState( m_xFormOperations->getState( m_nFormFeature ) );
60 :
61 0 : _rState.FeatureURL = m_aFeatureURL;
62 0 : _rState.IsEnabled = aState.Enabled;
63 0 : _rState.Requery = sal_False;
64 0 : _rState.State = aState.State;
65 0 : }
66 :
67 :
68 0 : void OSingleFeatureDispatcher::updateAllListeners()
69 : {
70 0 : ::osl::ClearableMutexGuard aGuard( m_rMutex );
71 :
72 0 : FeatureStateEvent aUnoState;
73 0 : getUnoState( aUnoState );
74 :
75 0 : if ( ( m_aLastKnownState == aUnoState.State ) && ( m_bLastKnownEnabled == aUnoState.IsEnabled ) )
76 0 : return;
77 :
78 0 : m_aLastKnownState = aUnoState.State;
79 0 : m_bLastKnownEnabled = aUnoState.IsEnabled;
80 :
81 0 : notifyStatus( NULL, aGuard );
82 : }
83 :
84 :
85 0 : void OSingleFeatureDispatcher::notifyStatus( const Reference< XStatusListener >& _rxListener, ::osl::ClearableMutexGuard& _rFreeForNotification )
86 : {
87 0 : FeatureStateEvent aUnoState;
88 0 : getUnoState( aUnoState );
89 :
90 0 : if ( _rxListener.is() )
91 : {
92 : try
93 : {
94 0 : _rFreeForNotification.clear();
95 0 : _rxListener->statusChanged( aUnoState );
96 : }
97 0 : catch( const Exception& )
98 : {
99 : OSL_FAIL( "OSingleFeatureDispatcher::notifyStatus: caught an exception!" );
100 : }
101 : }
102 : else
103 : {
104 0 : ::cppu::OInterfaceIteratorHelper aIter( m_aStatusListeners );
105 0 : _rFreeForNotification.clear();
106 :
107 0 : while ( aIter.hasMoreElements() )
108 : {
109 : try
110 : {
111 0 : static_cast< XStatusListener* >( aIter.next() )->statusChanged( aUnoState );
112 : }
113 0 : catch( const DisposedException& )
114 : {
115 : OSL_FAIL( "OSingleFeatureDispatcher::notifyStatus: caught a DisposedException - removing the listener!" );
116 0 : aIter.remove( );
117 : }
118 0 : catch( const Exception& )
119 : {
120 : OSL_FAIL( "OSingleFeatureDispatcher::notifyStatus: caught a generic exception while notifying a single listener!" );
121 : }
122 0 : }
123 0 : }
124 0 : }
125 :
126 :
127 0 : void SAL_CALL OSingleFeatureDispatcher::dispatch( const URL& _rURL, const Sequence< PropertyValue >& _rArguments ) throw (RuntimeException, std::exception)
128 : {
129 0 : ::osl::ClearableMutexGuard aGuard( m_rMutex );
130 0 : checkAlive();
131 :
132 : OSL_ENSURE( _rURL.Complete == m_aFeatureURL.Complete, "OSingleFeatureDispatcher::dispatch: not responsible for this URL!" );
133 : (void)_rURL;
134 :
135 0 : if ( !m_xFormOperations->isEnabled( m_nFormFeature ) )
136 0 : return;
137 :
138 : // release our mutex before executing the command
139 0 : sal_Int16 nFormFeature( m_nFormFeature );
140 0 : Reference< XFormOperations > xFormOperations( m_xFormOperations );
141 0 : aGuard.clear();
142 :
143 : try
144 : {
145 0 : if ( !_rArguments.getLength() )
146 : {
147 0 : xFormOperations->execute( nFormFeature );
148 : }
149 : else
150 : { // at the moment we only support one parameter
151 0 : ::comphelper::NamedValueCollection aArgs( _rArguments );
152 0 : xFormOperations->executeWithArguments( nFormFeature, aArgs.getNamedValues() );
153 : }
154 : }
155 0 : catch( const RuntimeException& )
156 : {
157 0 : throw;
158 : }
159 0 : catch( const Exception& )
160 : {
161 : DBG_UNHANDLED_EXCEPTION();
162 0 : }
163 : }
164 :
165 :
166 0 : void SAL_CALL OSingleFeatureDispatcher::addStatusListener( const Reference< XStatusListener >& _rxControl, const URL& _rURL ) throw (RuntimeException, std::exception)
167 : {
168 : (void)_rURL;
169 : OSL_ENSURE( _rURL.Complete == m_aFeatureURL.Complete, "OSingleFeatureDispatcher::addStatusListener: unexpected URL!" );
170 : OSL_ENSURE( _rxControl.is(), "OSingleFeatureDispatcher::addStatusListener: senseless call!" );
171 0 : if ( !_rxControl.is() )
172 0 : return;
173 :
174 0 : ::osl::ClearableMutexGuard aGuard( m_rMutex );
175 0 : if ( m_bDisposed )
176 : {
177 0 : EventObject aDisposeEvent( *this );
178 0 : aGuard.clear();
179 0 : _rxControl->disposing( aDisposeEvent );
180 0 : return;
181 : }
182 :
183 0 : m_aStatusListeners.addInterface( _rxControl );
184 :
185 : // initially update the status
186 0 : notifyStatus( _rxControl, aGuard );
187 : }
188 :
189 :
190 0 : void SAL_CALL OSingleFeatureDispatcher::removeStatusListener( const Reference< XStatusListener >& _rxControl, const URL& _rURL ) throw (RuntimeException, std::exception)
191 : {
192 : (void)_rURL;
193 : OSL_ENSURE( _rURL.Complete == m_aFeatureURL.Complete, "OSingleFeatureDispatcher::removeStatusListener: unexpected URL!" );
194 : OSL_ENSURE( _rxControl.is(), "OSingleFeatureDispatcher::removeStatusListener: senseless call!" );
195 0 : if ( !_rxControl.is() )
196 0 : return;
197 :
198 0 : ::osl::MutexGuard aGuard( m_rMutex );
199 0 : checkAlive();
200 :
201 0 : m_aStatusListeners.removeInterface( _rxControl );
202 : }
203 :
204 :
205 0 : void OSingleFeatureDispatcher::checkAlive() const SAL_THROW((DisposedException))
206 : {
207 0 : if ( m_bDisposed )
208 0 : throw DisposedException( OUString(), *const_cast< OSingleFeatureDispatcher* >( this ) );
209 0 : }
210 :
211 :
212 : } // namespace svx
213 :
214 :
215 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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