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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 "ShellStackGuard.hxx"
22 :
23 : #include "framework/ConfigurationController.hxx"
24 : #include "framework/FrameworkHelper.hxx"
25 :
26 : #include "DrawController.hxx"
27 : #include "ViewShellBase.hxx"
28 : #include <sfx2/printer.hxx>
29 : #include <com/sun/star/drawing/framework/XControllerManager.hpp>
30 : #include <com/sun/star/drawing/framework/XConfigurationController.hpp>
31 :
32 : using namespace ::com::sun::star;
33 : using namespace ::com::sun::star::uno;
34 : using namespace ::com::sun::star::drawing::framework;
35 :
36 : using ::rtl::OUString;
37 : using ::sd::framework::FrameworkHelper;
38 :
39 :
40 : namespace sd { namespace framework {
41 :
42 : //===== CenterViewFocusModule ====================================================
43 :
44 0 : ShellStackGuard::ShellStackGuard (Reference<frame::XController>& rxController)
45 : : ShellStackGuardInterfaceBase(m_aMutex),
46 : mxConfigurationController(),
47 : mpBase(NULL),
48 : mpUpdateLock(),
49 0 : maPrinterPollingTimer()
50 : {
51 0 : Reference<XControllerManager> xControllerManager (rxController, UNO_QUERY);
52 0 : if (xControllerManager.is())
53 : {
54 0 : mxConfigurationController = xControllerManager->getConfigurationController();
55 :
56 : // Tunnel through the controller to obtain a ViewShellBase.
57 0 : Reference<lang::XUnoTunnel> xTunnel (rxController, UNO_QUERY);
58 0 : if (xTunnel.is())
59 : {
60 : ::sd::DrawController* pController = reinterpret_cast<sd::DrawController*>(
61 0 : xTunnel->getSomething(sd::DrawController::getUnoTunnelId()));
62 0 : if (pController != NULL)
63 0 : mpBase = pController->GetViewShellBase();
64 0 : }
65 : }
66 :
67 0 : if (mxConfigurationController.is())
68 : {
69 : // Listen for update starts so that the following update can be
70 : // prevented in case of a printing printer.
71 0 : mxConfigurationController->addConfigurationChangeListener(
72 : this,
73 : FrameworkHelper::msConfigurationUpdateStartEvent,
74 0 : Any());
75 :
76 : // Prepare the printer polling.
77 0 : maPrinterPollingTimer.SetTimeoutHdl(LINK(this,ShellStackGuard,TimeoutHandler));
78 0 : maPrinterPollingTimer.SetTimeout(300);
79 0 : }
80 0 : }
81 :
82 :
83 :
84 :
85 0 : ShellStackGuard::~ShellStackGuard (void)
86 : {
87 0 : }
88 :
89 :
90 :
91 :
92 0 : void SAL_CALL ShellStackGuard::disposing (void)
93 : {
94 0 : if (mxConfigurationController.is())
95 0 : mxConfigurationController->removeConfigurationChangeListener(this);
96 :
97 0 : mxConfigurationController = NULL;
98 0 : mpBase = NULL;
99 0 : }
100 :
101 :
102 :
103 :
104 0 : void SAL_CALL ShellStackGuard::notifyConfigurationChange (
105 : const ConfigurationChangeEvent& rEvent)
106 : throw (RuntimeException)
107 : {
108 0 : if (rEvent.Type.equals(FrameworkHelper::msConfigurationUpdateStartEvent))
109 : {
110 0 : if (mpUpdateLock.get() == NULL && IsPrinting())
111 : {
112 : // Prevent configuration updates while the printer is printing.
113 0 : mpUpdateLock.reset(new ConfigurationController::Lock(mxConfigurationController));
114 :
115 : // Start polling for the printer having finished printing.
116 0 : maPrinterPollingTimer.Start();
117 : }
118 : }
119 0 : }
120 :
121 :
122 :
123 :
124 0 : void SAL_CALL ShellStackGuard::disposing (
125 : const lang::EventObject& rEvent)
126 : throw (RuntimeException)
127 : {
128 0 : if (mxConfigurationController.is())
129 0 : if (rEvent.Source == mxConfigurationController)
130 : {
131 0 : mxConfigurationController = NULL;
132 0 : mpBase = NULL;
133 : }
134 0 : }
135 :
136 :
137 :
138 :
139 0 : IMPL_LINK(ShellStackGuard, TimeoutHandler, Timer*, pTimer)
140 : {
141 : #ifdef DEBUG
142 : OSL_ASSERT(pTimer==&maPrinterPollingTimer);
143 : #else
144 : (void)pTimer;
145 : #endif
146 0 : if (mpUpdateLock.get() != NULL)
147 : {
148 0 : if ( ! IsPrinting())
149 : {
150 : // Printing finished. Release the update lock.
151 0 : mpUpdateLock.reset();
152 : }
153 : else
154 : {
155 : // Wait long for the printing to finish.
156 0 : maPrinterPollingTimer.Start();
157 : }
158 : }
159 :
160 0 : return 0;
161 : }
162 :
163 :
164 :
165 :
166 :
167 0 : bool ShellStackGuard::IsPrinting (void) const
168 : {
169 0 : if (mpBase != NULL)
170 : {
171 0 : SfxPrinter* pPrinter = mpBase->GetPrinter();
172 0 : if (pPrinter != NULL
173 0 : && pPrinter->IsPrinting())
174 : {
175 0 : return true;
176 : }
177 : }
178 :
179 0 : return false;
180 : }
181 :
182 :
183 : } } // end of namespace sd::framework
184 :
185 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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