1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #include "precompiled_sd.hxx" 25 26 #include "ShellStackGuard.hxx" 27 28 #include "framework/ConfigurationController.hxx" 29 #include "framework/FrameworkHelper.hxx" 30 31 #include "DrawController.hxx" 32 #include "ViewShellBase.hxx" 33 #include <sfx2/printer.hxx> 34 #include <com/sun/star/drawing/framework/XControllerManager.hpp> 35 #include <com/sun/star/drawing/framework/XConfigurationController.hpp> 36 37 using namespace ::com::sun::star; 38 using namespace ::com::sun::star::uno; 39 using namespace ::com::sun::star::drawing::framework; 40 41 using ::rtl::OUString; 42 using ::sd::framework::FrameworkHelper; 43 44 45 namespace sd { namespace framework { 46 47 //===== CenterViewFocusModule ==================================================== 48 49 ShellStackGuard::ShellStackGuard (Reference<frame::XController>& rxController) 50 : ShellStackGuardInterfaceBase(m_aMutex), 51 mxConfigurationController(), 52 mpBase(NULL), 53 mpUpdateLock(), 54 maPrinterPollingTimer() 55 { 56 Reference<XControllerManager> xControllerManager (rxController, UNO_QUERY); 57 if (xControllerManager.is()) 58 { 59 mxConfigurationController = xControllerManager->getConfigurationController(); 60 61 // Tunnel through the controller to obtain a ViewShellBase. 62 Reference<lang::XUnoTunnel> xTunnel (rxController, UNO_QUERY); 63 if (xTunnel.is()) 64 { 65 ::sd::DrawController* pController = reinterpret_cast<sd::DrawController*>( 66 xTunnel->getSomething(sd::DrawController::getUnoTunnelId())); 67 if (pController != NULL) 68 mpBase = pController->GetViewShellBase(); 69 } 70 } 71 72 if (mxConfigurationController.is()) 73 { 74 // Listen for update starts so that the following update can be 75 // prevented in case of a printing printer. 76 mxConfigurationController->addConfigurationChangeListener( 77 this, 78 FrameworkHelper::msConfigurationUpdateStartEvent, 79 Any()); 80 81 // Prepare the printer polling. 82 maPrinterPollingTimer.SetTimeoutHdl(LINK(this,ShellStackGuard,TimeoutHandler)); 83 maPrinterPollingTimer.SetTimeout(300); 84 } 85 } 86 87 88 89 90 ShellStackGuard::~ShellStackGuard (void) 91 { 92 } 93 94 95 96 97 void SAL_CALL ShellStackGuard::disposing (void) 98 { 99 if (mxConfigurationController.is()) 100 mxConfigurationController->removeConfigurationChangeListener(this); 101 102 mxConfigurationController = NULL; 103 mpBase = NULL; 104 } 105 106 107 108 109 void SAL_CALL ShellStackGuard::notifyConfigurationChange ( 110 const ConfigurationChangeEvent& rEvent) 111 { 112 if (rEvent.Type.equals(FrameworkHelper::msConfigurationUpdateStartEvent)) 113 { 114 if (mpUpdateLock.get() == NULL && IsPrinting()) 115 { 116 // Prevent configuration updates while the printer is printing. 117 mpUpdateLock.reset(new ConfigurationController::Lock(mxConfigurationController)); 118 119 // Start polling for the printer having finished printing. 120 maPrinterPollingTimer.Start(); 121 } 122 } 123 } 124 125 126 127 128 void SAL_CALL ShellStackGuard::disposing ( 129 const lang::EventObject& rEvent) 130 { 131 if (mxConfigurationController.is()) 132 if (rEvent.Source == mxConfigurationController) 133 { 134 mxConfigurationController = NULL; 135 mpBase = NULL; 136 } 137 } 138 139 140 141 142 IMPL_LINK(ShellStackGuard, TimeoutHandler, Timer*, pTimer) 143 { 144 #ifdef DEBUG 145 OSL_ASSERT(pTimer==&maPrinterPollingTimer); 146 #else 147 (void)pTimer; 148 #endif 149 if (mpUpdateLock.get() != NULL) 150 { 151 if ( ! IsPrinting()) 152 { 153 // Printing finished. Release the update lock. 154 mpUpdateLock.reset(); 155 } 156 else 157 { 158 // Wait long for the printing to finish. 159 maPrinterPollingTimer.Start(); 160 } 161 } 162 163 return 0; 164 } 165 166 167 168 169 170 bool ShellStackGuard::IsPrinting (void) const 171 { 172 if (mpBase != NULL) 173 { 174 SfxPrinter* pPrinter = mpBase->GetPrinter(); 175 if (pPrinter != NULL 176 && pPrinter->IsPrinting()) 177 { 178 return true; 179 } 180 } 181 182 return false; 183 } 184 185 186 } } // end of namespace sd::framework 187