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 #include "precompiled_sfx2.hxx" 23 24 #include "sfx2/sidebar/ContextChangeBroadcaster.hxx" 25 #include "sfx2/sidebar/EnumContext.hxx" 26 #include <com/sun/star/ui/ContextChangeEventObject.hpp> 27 #include <com/sun/star/ui/ContextChangeEventMultiplexer.hpp> 28 #include <com/sun/star/frame/XModuleManager.hpp> 29 #include <comphelper/componentcontext.hxx> 30 #include <comphelper/processfactory.hxx> 31 32 33 using ::rtl::OUString; 34 using namespace css; 35 using namespace cssu; 36 37 namespace sfx2 { namespace sidebar { 38 39 40 ContextChangeBroadcaster::ContextChangeBroadcaster (void) 41 : msContextName(), 42 mbIsContextActive(false), 43 mbIsBroadcasterEnabled(true) 44 { 45 } 46 47 48 49 ContextChangeBroadcaster::~ContextChangeBroadcaster (void) 50 { 51 } 52 53 54 55 56 void ContextChangeBroadcaster::Initialize (const ::rtl::OUString& rsContextName) 57 { 58 OSL_ASSERT( ! mbIsContextActive); 59 60 msContextName = rsContextName; 61 } 62 63 64 65 66 void ContextChangeBroadcaster::Activate (const cssu::Reference<css::frame::XFrame>& rxFrame) 67 { 68 if (msContextName.getLength() > 0) 69 BroadcastContextChange(rxFrame, GetModuleName(rxFrame), msContextName); 70 } 71 72 73 74 75 void ContextChangeBroadcaster::Deactivate (const cssu::Reference<css::frame::XFrame>& rxFrame) 76 { 77 if (msContextName.getLength() > 0) 78 { 79 BroadcastContextChange( 80 rxFrame, 81 GetModuleName(rxFrame), 82 EnumContext::GetContextName(EnumContext::Context_Default)); 83 } 84 } 85 86 87 88 89 bool ContextChangeBroadcaster::SetBroadcasterEnabled (const bool bIsEnabled) 90 { 91 const bool bWasEnabled (mbIsBroadcasterEnabled); 92 mbIsBroadcasterEnabled = bIsEnabled; 93 return bWasEnabled; 94 } 95 96 97 98 99 void ContextChangeBroadcaster::BroadcastContextChange ( 100 const cssu::Reference<css::frame::XFrame>& rxFrame, 101 const ::rtl::OUString& rsModuleName, 102 const ::rtl::OUString& rsContextName) 103 { 104 if ( ! mbIsBroadcasterEnabled) 105 return; 106 107 if (rsContextName.getLength() == 0) 108 return; 109 110 if ( ! rxFrame.is() || ! rxFrame->getController().is()) 111 { 112 // Frame is (probably) being deleted. Broadcasting context 113 // changes is not necessary anymore. 114 return; 115 } 116 117 const css::ui::ContextChangeEventObject aEvent( 118 rxFrame->getController(), 119 rsModuleName, 120 rsContextName); 121 122 cssu::Reference<css::ui::XContextChangeEventMultiplexer> xMultiplexer ( 123 css::ui::ContextChangeEventMultiplexer::get( 124 ::comphelper::getProcessComponentContext())); 125 if (xMultiplexer.is()) 126 xMultiplexer->broadcastContextChangeEvent(aEvent, rxFrame->getController()); 127 } 128 129 130 131 132 OUString ContextChangeBroadcaster::GetModuleName (const cssu::Reference<css::frame::XFrame>& rxFrame) 133 { 134 if ( ! rxFrame.is() || ! rxFrame->getController().is()) 135 return OUString(); 136 OUString sModuleName; 137 try 138 { 139 const ::comphelper::ComponentContext aContext (::comphelper::getProcessServiceFactory()); 140 const Reference<frame::XModuleManager> xModuleManager ( 141 aContext.createComponent("com.sun.star.frame.ModuleManager" ), 142 UNO_QUERY_THROW ); 143 return xModuleManager->identify(rxFrame); 144 } 145 catch (const Exception&) 146 { 147 OSL_ENSURE(false, "can not determine module name"); 148 } 149 return OUString(); 150 } 151 152 153 154 } } // end of namespace ::sd::sidebar 155