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/interfacecontainer.hxx>
  26 #include <cppuhelper/weak.hxx>
  27 #include <tools/diagnose_ex.h>
  28
  29 #include <unordered_map>
  30
  31 namespace
  32 {
  33
  34     struct ShapePropertyHash
  35     {
  36         size_t operator()( svx::ShapeProperty __x ) const
  37         {
  38             return size_t( __x );
  39         }
  40     };
  41 }
  42
  43
  44 namespace svx
  45 {
  46
  47
  48     using ::com::sun::star::uno::Reference;
  49     using ::com::sun::star::uno::XInterface;
  50     using ::com::sun::star::uno::UNO_QUERY;
  51     using ::com::sun::star::uno::UNO_QUERY_THROW;
  52     using ::com::sun::star::uno::UNO_SET_THROW;
  53     using ::com::sun::star::uno::Exception;
  54     using ::com::sun::star::uno::RuntimeException;
  55     using ::com::sun::star::uno::Any;
  56     using ::com::sun::star::uno::makeAny;
  57     using ::com::sun::star::uno::Sequence;
  58     using ::com::sun::star::uno::Type;
  59     using ::com::sun::star::beans::PropertyChangeEvent;
  60     using ::com::sun::star::beans::XPropertyChangeListener;
  61     using ::com::sun::star::lang::EventObject;
  62     using ::com::sun::star::beans::XPropertySet;
  63
  64     typedef std::unordered_map< ShapeProperty, PPropertyValueProvider, ShapePropertyHash  >    PropertyProviders;
  65
  66     typedef cppu::OMultiTypeInterfaceContainerHelperVar<OUString>
  67         PropertyChangeListenerContainer;
  68
  69     IPropertyValueProvider::~IPropertyValueProvider()
  70     {
  71     }
  72
  73     struct PropertyChangeNotifier_Data
  74     {
  75         ::cppu::OWeakObject&            m_rContext;
  76         PropertyProviders               m_aProviders;
  77         PropertyChangeListenerContainer m_aPropertyChangeListeners;
  78
  79         PropertyChangeNotifier_Data( ::cppu::OWeakObject& _rContext, ::osl::Mutex& _rMutex )
  80             :m_rContext( _rContext )
  81             ,m_aPropertyChangeListeners( _rMutex )
  82         {
  83         }
  84     };
  85
  86     //= PropertyValueProvider
  87
  88
  89     OUString PropertyValueProvider::getPropertyName() const
  90     {
  91         return m_sPropertyName;
  92     }
  93
  94
  95     void PropertyValueProvider::getCurrentValue( Any& _out_rValue ) const
  96     {
  97         Reference< XPropertySet > xContextProps( const_cast< PropertyValueProvider* >( this )->m_rContext, UNO_QUERY_THROW );
  98         _out_rValue = xContextProps->getPropertyValue( getPropertyName() );
  99     }
 100
 101     PropertyChangeNotifier::PropertyChangeNotifier( ::cppu::OWeakObject& _rOwner, ::osl::Mutex& _rMutex )
 102         :m_xData( new PropertyChangeNotifier_Data( _rOwner, _rMutex ) )
 103     {
 104     }
 105
 106     PropertyChangeNotifier::~PropertyChangeNotifier()
 107     {
 108     }
 109
 110     void PropertyChangeNotifier::registerProvider(const ShapeProperty _eProperty, const PPropertyValueProvider& _rProvider)
 111     {
 112         ENSURE_OR_THROW( _eProperty != eInvalidShapeProperty, "Illegal ShapeProperty value!" );
 113         ENSURE_OR_THROW( !!_rProvider, "NULL factory not allowed." );
 114
 115         OSL_ENSURE( m_xData->m_aProviders.find( _eProperty ) == m_xData->m_aProviders.end(),
 116             "PropertyChangeNotifier::registerProvider: factory for this ID already present!" );
 117
 118         m_xData->m_aProviders[ _eProperty ] = _rProvider;
 119     }
 120
 121     void PropertyChangeNotifier::notifyPropertyChange( const ShapeProperty _eProperty ) const
 122     {
 123         ENSURE_OR_THROW( _eProperty != eInvalidShapeProperty, "Illegal ShapeProperty value!" );
 124
 125         PropertyProviders::const_iterator provPos = m_xData->m_aProviders.find( _eProperty );
 126         OSL_ENSURE( provPos != m_xData->m_aProviders.end(), "PropertyChangeNotifier::notifyPropertyChange: no factory!" );
 127         if ( provPos == m_xData->m_aProviders.end() )
 128             return;
 129
 130         OUString sPropertyName( provPos->second->getPropertyName() );
 131
 132         ::cppu::OInterfaceContainerHelper* pPropListeners = m_xData->m_aPropertyChangeListeners.getContainer( sPropertyName );
 133         ::cppu::OInterfaceContainerHelper* pAllListeners = m_xData->m_aPropertyChangeListeners.getContainer( OUString() );
 134         if ( !pPropListeners && !pAllListeners )
 135             return;
 136
 137         try
 138         {
 139             PropertyChangeEvent aEvent;
 140             aEvent.Source = m_xData->m_rContext;
 141             // Handle/OldValue not supported
 142             aEvent.PropertyName = provPos->second->getPropertyName();
 143             provPos->second->getCurrentValue( aEvent.NewValue );
 144
 145             if ( pPropListeners )
 146                 pPropListeners->notifyEach( &XPropertyChangeListener::propertyChange, aEvent );
 147             if ( pAllListeners )
 148                 pAllListeners->notifyEach( &XPropertyChangeListener::propertyChange, aEvent );
 149         }
 150         catch( const Exception& )
 151         {
 152             DBG_UNHANDLED_EXCEPTION();
 153         }
 154     }
 155
 156
 157     void PropertyChangeNotifier::addPropertyChangeListener( const OUString& _rPropertyName, const Reference< XPropertyChangeListener >& _rxListener )
 158     {
 159         m_xData->m_aPropertyChangeListeners.addInterface( _rPropertyName, _rxListener );
 160     }
 161
 162
 163     void PropertyChangeNotifier::removePropertyChangeListener( const OUString& _rPropertyName, const Reference< XPropertyChangeListener >& _rxListener )
 164     {
 165         m_xData->m_aPropertyChangeListeners.removeInterface( _rPropertyName, _rxListener );
 166     }
 167
 168
 169     void PropertyChangeNotifier::disposing()
 170     {
 171         EventObject aEvent;
 172         aEvent.Source = m_xData->m_rContext;
 173         m_xData->m_aPropertyChangeListeners.disposeAndClear( aEvent );
 174     }
 175
 176
 177 }
 178
 179
 180 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */