odk/examples/cpp/complextoolbarcontrols/ListenerHelper.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.
   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 #include <osl/diagnose.h>
  21
  22 #include "ListenerHelper.h"
  23
  24 using com::sun::star::frame::XFrame;
  25 using com::sun::star::frame::XDispatch;
  26 using com::sun::star::frame::XStatusListener;
  27 using com::sun::star::lang::EventObject;
  28 using com::sun::star::uno::Reference;
  29 using com::sun::star::uno::RuntimeException;
  30 using com::sun::star::frame::FeatureStateEvent;
  31
  32 static AllListeners aListeners;
  33
  34 void ListenerHelper::AddListener(
  35     const Reference < XFrame >& xFrame,
  36     const Reference < XStatusListener > xControl,
  37     const ::rtl::OUString& aCommand )
  38 {
  39     sal_uInt32 i=0;
  40     sal_uInt32 nSize = aListeners.size();
  41     for ( i=0; i<nSize; i++ )
  42         if ( aListeners[i].xFrame == xFrame )
  43             break;
  44
  45     OSL_ENSURE( i<nSize, "No dispatch found for this listener!" );
  46     aListeners[i].aContainer[aCommand].push_back( xControl );
  47 }
  48
  49 void ListenerHelper::RemoveListener(
  50     const Reference < XFrame >& xFrame,
  51     const Reference < XStatusListener > xControl,
  52     const ::rtl::OUString& aCommand )
  53 {
  54     sal_uInt32 nSize = aListeners.size();
  55     for ( sal_uInt32 i=0; i<nSize; i++ )
  56     {
  57         if ( aListeners[i].xFrame == xFrame )
  58         {
  59             StatusListeners& aL = aListeners[i].aContainer[aCommand];
  60             StatusListeners::iterator aIter = aL.begin();
  61             while ( aIter != aL.end() )
  62             {
  63                 if ( (*aIter) == xControl )
  64                 {
  65                     aL.erase( aIter );
  66                     break;
  67                 }
  68
  69                 ++aIter;
  70             }
  71         }
  72     }
  73 }
  74
  75 void ListenerHelper::Notify(
  76         const Reference < XFrame >& xFrame,
  77         const ::rtl::OUString& aCommand,
  78         FeatureStateEvent& rEvent )
  79 {
  80     sal_uInt32 nSize = aListeners.size();
  81     for ( sal_uInt32 i=0; i<nSize; i++ )
  82     {
  83         if ( aListeners[i].xFrame == xFrame )
  84         {
  85             rEvent.Source = aListeners[i].xDispatch;
  86             StatusListeners& aL = aListeners[i].aContainer[aCommand];
  87             StatusListeners::iterator aIter = aL.begin();
  88             while ( aIter != aL.end() )
  89             {
  90                 (*aIter)->statusChanged( rEvent );
  91                 ++aIter;
  92             }
  93         }
  94     }
  95 }
  96
  97 com::sun::star::uno::Reference < XDispatch > ListenerHelper::GetDispatch(
  98         const Reference < XFrame >& xFrame,
  99         const ::rtl::OUString& aCommand )
 100 {
 101     sal_uInt32 nSize = aListeners.size();
 102     for ( sal_uInt32 i=0; i<nSize; i++ )
 103     {
 104         if ( aListeners[i].xFrame == xFrame )
 105             return aListeners[i].xDispatch;
 106     }
 107
 108     return Reference < XDispatch >();
 109 }
 110
 111 void ListenerHelper::AddDispatch(
 112         const Reference < XDispatch > xDispatch,
 113         const Reference < XFrame >& xFrame,
 114         const ::rtl::OUString& aCommand )
 115 {
 116     ListenerItem aItem;
 117     aItem.xFrame = xFrame;
 118     aItem.xDispatch = xDispatch;
 119     aListeners.push_back( aItem );
 120     xFrame->addEventListener( new ListenerItemEventListener( xFrame ) );
 121 }
 122
 123 void SAL_CALL ListenerItemEventListener::disposing( const EventObject& aEvent) throw (RuntimeException)
 124 {
 125     AllListeners::iterator aIter = aListeners.begin();
 126     while ( aIter != aListeners.end() )
 127     {
 128         if ( (*aIter).xFrame == mxFrame )
 129         {
 130             aListeners.erase( aIter );
 131             break;
 132         }
 133
 134         ++aIter;
 135     }
 136 }
 137
 138 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */