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