svx/source/unodraw/shapepropertynotifier.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
  21 #include <svx/shapepropertynotifier.hxx>
  22
  23 #include <com/sun/star/beans/XPropertySet.hpp>
  24
  25 #include <cppuhelper/weak.hxx>
  26 #include <comphelper/diagnose_ex.hxx>
  27
  28 namespace
  29 {
  30
  31 }
  32
  33
  34 namespace svx
  35 {
  36
  37
  38     using ::com::sun::star::uno::Reference;
  39     using ::com::sun::star::uno::UNO_QUERY_THROW;
  40     using ::com::sun::star::uno::Exception;
  41     using ::com::sun::star::uno::Any;
  42     using ::com::sun::star::beans::PropertyChangeEvent;
  43     using ::com::sun::star::beans::XPropertyChangeListener;
  44     using ::com::sun::star::lang::EventObject;
  45     using ::com::sun::star::beans::XPropertySet;
  46
  47     PropertyValueProvider::~PropertyValueProvider()
  48     {
  49     }
  50
  51     //= PropertyValueProvider
  52
  53
  54     const OUString & PropertyValueProvider::getPropertyName() const
  55     {
  56         return m_sPropertyName;
  57     }
  58
  59
  60     void PropertyValueProvider::getCurrentValue( Any& _out_rValue ) const
  61     {
  62         Reference< XPropertySet > xContextProps( const_cast< PropertyValueProvider* >( this )->m_rContext, UNO_QUERY_THROW );
  63         _out_rValue = xContextProps->getPropertyValue( getPropertyName() );
  64     }
  65
  66     PropertyChangeNotifier::PropertyChangeNotifier( ::cppu::OWeakObject& _rOwner )
  67         :m_rContext( _rOwner )
  68     {
  69     }
  70
  71     PropertyChangeNotifier::~PropertyChangeNotifier()
  72     {
  73     }
  74
  75     void PropertyChangeNotifier::registerProvider(const ShapePropertyProviderId _eProperty, std::unique_ptr<PropertyValueProvider> _rProvider)
  76     {
  77         assert( _rProvider && "NULL factory not allowed." );
  78
  79         assert( ! m_aProviders[_eProperty] &&
  80             "PropertyChangeNotifier::registerProvider: factory for this ID already present!" );
  81
  82         m_aProviders[ _eProperty ] = std::move(_rProvider);
  83     }
  84
  85     void PropertyChangeNotifier::notifyPropertyChange( std::unique_lock<std::mutex>& rGuard, const ShapePropertyProviderId _eProperty ) const
  86     {
  87         auto & provPos = m_aProviders[ _eProperty ];
  88         OSL_ENSURE( provPos, "PropertyChangeNotifier::notifyPropertyChange: no factory!" );
  89         if (!provPos)
  90             return;
  91
  92         const OUString & sPropertyName( provPos->getPropertyName() );
  93
  94         ::comphelper::OInterfaceContainerHelper4<XPropertyChangeListener>* pPropListeners = m_aPropertyChangeListeners.getContainer( rGuard, sPropertyName );
  95         ::comphelper::OInterfaceContainerHelper4<XPropertyChangeListener>* pAllListeners = m_aPropertyChangeListeners.getContainer( rGuard, OUString() );
  96         if ( !pPropListeners && !pAllListeners )
  97             return;
  98
  99         try
 100         {
 101             PropertyChangeEvent aEvent;
 102             aEvent.Source = m_rContext;
 103             // Handle/OldValue not supported
 104             aEvent.PropertyName = provPos->getPropertyName();
 105             provPos->getCurrentValue( aEvent.NewValue );
 106
 107             if ( pPropListeners )
 108                 pPropListeners->notifyEach( rGuard, &XPropertyChangeListener::propertyChange, aEvent );
 109             if ( pAllListeners )
 110                 pAllListeners->notifyEach( rGuard, &XPropertyChangeListener::propertyChange, aEvent );
 111         }
 112         catch( const Exception& )
 113         {
 114             DBG_UNHANDLED_EXCEPTION("svx");
 115         }
 116     }
 117
 118
 119     void PropertyChangeNotifier::addPropertyChangeListener( std::unique_lock<std::mutex>& rGuard, const OUString& _rPropertyName, const Reference< XPropertyChangeListener >& _rxListener )
 120     {
 121         m_aPropertyChangeListeners.addInterface( rGuard, _rPropertyName, _rxListener );
 122     }
 123
 124
 125     void PropertyChangeNotifier::removePropertyChangeListener( std::unique_lock<std::mutex>& rGuard, const OUString& _rPropertyName, const Reference< XPropertyChangeListener >& _rxListener )
 126     {
 127         m_aPropertyChangeListeners.removeInterface( rGuard, _rPropertyName, _rxListener );
 128     }
 129
 130
 131     void PropertyChangeNotifier::disposing(std::unique_lock<std::mutex>& rGuard)
 132     {
 133         EventObject aEvent;
 134         aEvent.Source = m_rContext;
 135         m_aPropertyChangeListeners.disposeAndClear( rGuard, aEvent );
 136     }
 137
 138
 139 }
 140
 141
 142 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */