sdext/source/presenter/PresenterFrameworkObserver.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   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 #include "PresenterFrameworkObserver.hxx"
  21 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  22
  23 using namespace ::com::sun::star;
  24 using namespace ::com::sun::star::uno;
  25 using namespace ::com::sun::star::drawing::framework;
  26
  27
  28 namespace sdext { namespace presenter {
  29
  30 PresenterFrameworkObserver::PresenterFrameworkObserver (
  31     const css::uno::Reference<css::drawing::framework::XConfigurationController>&rxController,
  32     const OUString& rsEventName,
  33     const Predicate& rPredicate,
  34     const Action& rAction)
  35     : PresenterFrameworkObserverInterfaceBase(m_aMutex),
  36       mxConfigurationController(rxController),
  37       maPredicate(rPredicate),
  38       maAction(rAction)
  39 {
  40     if ( ! mxConfigurationController.is())
  41         throw lang::IllegalArgumentException();
  42
  43     if (mxConfigurationController->hasPendingRequests())
  44     {
  45         if (!rsEventName.isEmpty())
  46         {
  47             mxConfigurationController->addConfigurationChangeListener(
  48                 this,
  49                 rsEventName,
  50                 Any());
  51         }
  52         mxConfigurationController->addConfigurationChangeListener(
  53             this,
  54             "ConfigurationUpdateEnd",
  55             Any());
  56     }
  57     else
  58     {
  59         rAction(maPredicate());
  60     }
  61 }
  62
  63 PresenterFrameworkObserver::~PresenterFrameworkObserver()
  64 {
  65 }
  66
  67 void PresenterFrameworkObserver::RunOnUpdateEnd (
  68     const css::uno::Reference<css::drawing::framework::XConfigurationController>&rxController,
  69     const Action& rAction)
  70 {
  71     new PresenterFrameworkObserver(
  72         rxController,
  73         OUString(),
  74         &PresenterFrameworkObserver::True,
  75         rAction);
  76 }
  77
  78 bool PresenterFrameworkObserver::True()
  79 {
  80     return true;
  81 }
  82
  83 void SAL_CALL PresenterFrameworkObserver::disposing()
  84 {
  85     if ( ! maAction.empty())
  86         maAction(false);
  87     Shutdown();
  88 }
  89
  90 void PresenterFrameworkObserver::Shutdown()
  91 {
  92     maAction = Action();
  93     maPredicate = Predicate();
  94
  95     if (mxConfigurationController != NULL)
  96     {
  97         mxConfigurationController->removeConfigurationChangeListener(this);
  98         mxConfigurationController = NULL;
  99     }
 100 }
 101
 102 void SAL_CALL PresenterFrameworkObserver::disposing (const lang::EventObject& rEvent)
 103     throw (RuntimeException, std::exception)
 104 {
 105     if ( ! rEvent.Source.is())
 106         return;
 107
 108     if (rEvent.Source == mxConfigurationController)
 109     {
 110         mxConfigurationController = NULL;
 111         if ( ! maAction.empty())
 112             maAction(false);
 113     }
 114 }
 115
 116 void SAL_CALL PresenterFrameworkObserver::notifyConfigurationChange (
 117     const ConfigurationChangeEvent& rEvent)
 118     throw (RuntimeException, std::exception)
 119 {
 120     bool bDispose(false);
 121
 122     Action aAction (maAction);
 123     Predicate aPredicate (maPredicate);
 124     if (rEvent.Type == "ConfigurationUpdateEnd")
 125     {
 126         Shutdown();
 127         aAction(aPredicate);
 128         bDispose = true;
 129     }
 130     else if (aPredicate())
 131     {
 132         Shutdown();
 133         aAction(true);
 134         bDispose = true;
 135     }
 136
 137     if (bDispose)
 138     {
 139         maAction.clear();
 140         dispose();
 141     }
 142 }
 143
 144 } }  // end of namespace ::sdext::presenter
 145
 146 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */