Line data Source code
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 "asyncfilepicker.hxx"
22 : #include "iodlg.hxx"
23 : #include "svtools/fileview.hxx"
24 : #include <tools/debug.hxx>
25 :
26 : #include <boost/scoped_ptr.hpp>
27 :
28 :
29 : namespace svt
30 : {
31 0 : AsyncPickerAction::AsyncPickerAction( SvtFileDialog* _pDialog, SvtFileView* _pView, const Action _eAction )
32 : :m_eAction ( _eAction )
33 : ,m_pView ( _pView )
34 : ,m_pDialog ( _pDialog )
35 0 : ,m_bRunning ( false )
36 : {
37 : DBG_ASSERT( m_pDialog, "AsyncPickerAction::AsyncPickerAction: invalid dialog!" );
38 : DBG_ASSERT( m_pView, "AsyncPickerAction::AsyncPickerAction: invalid view!" );
39 0 : }
40 :
41 :
42 0 : AsyncPickerAction::~AsyncPickerAction()
43 : {
44 0 : }
45 :
46 :
47 0 : void AsyncPickerAction::cancel()
48 : {
49 : DBG_TESTSOLARMUTEX();
50 : // if this asserts, we'd need to have an own mutex per instance
51 :
52 : OSL_ENSURE( m_bRunning, "AsyncPickerAction::cancel: not running" );
53 0 : if ( m_pView )
54 0 : m_pView->CancelRunningAsyncAction();
55 0 : }
56 :
57 :
58 0 : void AsyncPickerAction::execute(
59 : const OUString& _rURL,
60 : const OUString& _rFilter,
61 : sal_Int32 _nMinTimeout,
62 : sal_Int32 _nMaxTimeout,
63 : const OUStringList& rBlackList )
64 : {
65 : DBG_TESTSOLARMUTEX();
66 : // if this asserts, we'd need to have an own mutex per instance
67 :
68 0 : sal_Int32 nMinTimeout = _nMinTimeout;
69 0 : sal_Int32 nMaxTimeout = _nMaxTimeout;
70 : // normalizations
71 0 : if ( nMinTimeout < 0 )
72 : // if negative, this is considered as "do it synchronously"
73 0 : nMinTimeout = 0;
74 0 : else if ( nMinTimeout < 1000 )
75 0 : nMinTimeout = 1000;
76 0 : if ( nMaxTimeout <= nMinTimeout )
77 0 : nMaxTimeout = nMinTimeout + 30000;
78 :
79 0 : boost::scoped_ptr< FileViewAsyncAction > pActionDescriptor;
80 0 : if ( nMinTimeout )
81 : {
82 0 : pActionDescriptor.reset( new FileViewAsyncAction );
83 0 : pActionDescriptor->nMinTimeout = nMinTimeout;
84 0 : pActionDescriptor->nMaxTimeout = nMaxTimeout;
85 0 : pActionDescriptor->aFinishHandler = LINK( this, AsyncPickerAction, OnActionDone );
86 : }
87 :
88 0 : FileViewResult eResult = eFailure;
89 0 : m_sURL = _rURL;
90 0 : switch ( m_eAction )
91 : {
92 : case ePrevLevel:
93 0 : eResult = m_pView->PreviousLevel( pActionDescriptor.get() );
94 0 : break;
95 :
96 : case eOpenURL:
97 0 : eResult = m_pView->Initialize( _rURL, _rFilter, pActionDescriptor.get(), rBlackList );
98 0 : break;
99 :
100 : case eExecuteFilter:
101 : // preserve the filename (FS: why?)
102 0 : m_sFileName = m_pDialog->getCurrentFileText();
103 : // execute the new filter
104 0 : eResult = m_pView->ExecuteFilter( _rFilter, pActionDescriptor.get() );
105 0 : break;
106 :
107 : default:
108 : OSL_FAIL( "AsyncPickerAction::execute: unknown action!" );
109 0 : break;
110 : }
111 :
112 0 : acquire();
113 0 : if ( ( eResult == eSuccess ) || ( eResult == eFailure ) )
114 : {
115 : // the handler is only called if the action could not be finished within
116 : // the given minimum time period. In case of success, we need to call it
117 : // explicitly
118 0 : OnActionDone( reinterpret_cast< void* >( eResult ) );
119 : }
120 0 : else if ( eResult == eStillRunning )
121 : {
122 0 : m_bRunning = true;
123 0 : m_pDialog->onAsyncOperationStarted();
124 0 : }
125 0 : }
126 :
127 :
128 0 : IMPL_LINK( AsyncPickerAction, OnActionDone, void*, pEmptyArg )
129 : {
130 : DBG_TESTSOLARMUTEX();
131 : // if this asserts, we'd need to have an own mutex per instance
132 :
133 0 : FileViewResult eResult = static_cast< FileViewResult >( reinterpret_cast< sal_IntPtr >( pEmptyArg ) );
134 : OSL_ENSURE( eStillRunning != eResult, "AsyncPickerAction::OnActionDone: invalid result!" );
135 :
136 : // release once (since we acquired in |execute|), but keep alive until the
137 : // end of the method
138 0 : ::rtl::Reference< AsyncPickerAction > xKeepAlive( this );
139 0 : release();
140 :
141 0 : m_pDialog->onAsyncOperationFinished();
142 0 : m_bRunning = true;
143 :
144 0 : if ( eFailure == eResult )
145 : // TODO: do we need some kind of cleanup here?
146 0 : return 0L;
147 :
148 0 : if ( eTimeout == eResult )
149 : {
150 0 : m_pDialog->displayIOException( m_sURL, ::com::sun::star::ucb::IOErrorCode_CANT_READ );
151 0 : return 0L;
152 : }
153 :
154 : OSL_ENSURE( eSuccess == eResult, "AsyncPickerAction::OnActionDone: what else valid results are there?" );
155 :
156 0 : switch ( m_eAction )
157 : {
158 : case ePrevLevel:
159 : case eOpenURL:
160 0 : m_pDialog->UpdateControls( m_pView->GetViewURL() );
161 0 : break;
162 :
163 : case eExecuteFilter:
164 : // restore the filename
165 0 : m_pView->SetNoSelection();
166 0 : m_pDialog->setCurrentFileText( m_sFileName, true );
167 :
168 : // notify listeners
169 0 : m_pDialog->FilterSelect();
170 0 : break;
171 :
172 : default:
173 : OSL_FAIL( "AsyncPickerAction::OnActionDone: unknown action!" );
174 0 : break;
175 : }
176 :
177 0 : return 1L;
178 : }
179 :
180 :
181 6 : } // namespace svt
182 :
183 :
184 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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