sfx2/source/control/querystatus.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 <sfx2/querystatus.hxx>
  21 #include <svl/poolitem.hxx>
  22 #include <svl/eitem.hxx>
  23 #include <svl/stritem.hxx>
  24 #include <svl/intitem.hxx>
  25 #include <svl/itemset.hxx>
  26 #include <svtools/itemdel.hxx>
  27 #include <svl/visitem.hxx>
  28 #include <cppuhelper/implbase1.hxx>
  29 #include <comphelper/processfactory.hxx>
  30 #include <osl/mutex.hxx>
  31 #include <vcl/svapp.hxx>
  32 #include <com/sun/star/util/URLTransformer.hpp>
  33 #include <com/sun/star/util/XURLTransformer.hpp>
  34 #include <com/sun/star/frame/status/ItemStatus.hpp>
  35 #include <com/sun/star/frame/status/ItemState.hpp>
  36 #include <com/sun/star/frame/status/Visibility.hpp>
  37
  38 using namespace ::cppu;
  39 using namespace ::com::sun::star::uno;
  40 using namespace ::com::sun::star::frame;
  41 using namespace ::com::sun::star::frame::status;
  42 using namespace ::com::sun::star::lang;
  43 using namespace ::com::sun::star::util;
  44
  45 class SfxQueryStatus_Impl : public ::cppu::WeakImplHelper1< css::frame::XStatusListener >
  46 {
  47     public:
  48
  49         SfxQueryStatus_Impl( const ::com::sun::star::uno::Reference< ::com::sun::star::frame::XDispatchProvider >& rDispatchProvider, sal_uInt16 nSlotId, const OUString& aCommand );
  50         virtual ~SfxQueryStatus_Impl();
  51
  52         // Query method
  53         SfxItemState QueryState( SfxPoolItem*& pPoolItem );
  54
  55         // XEventListener
  56         virtual void SAL_CALL disposing(const ::com::sun::star::lang::EventObject& Source) throw( ::com::sun::star::uno::RuntimeException );
  57
  58         // XStatusListener
  59         virtual void SAL_CALL statusChanged(const ::com::sun::star::frame::FeatureStateEvent& Event) throw( ::com::sun::star::uno::RuntimeException );
  60
  61     private:
  62         SfxQueryStatus_Impl( const SfxQueryStatus& );
  63         SfxQueryStatus_Impl();
  64         SfxQueryStatus_Impl& operator=( const SfxQueryStatus& );
  65
  66         sal_Bool                                                                   m_bQueryInProgress;
  67         SfxItemState                                                               m_eState;
  68         SfxPoolItem*                                                               m_pItem;
  69         sal_uInt16                                                                     m_nSlotID;
  70         osl::Condition                                                             m_aCondition;
  71         ::com::sun::star::util::URL                                                m_aCommand;
  72         com::sun::star::uno::Reference< com::sun::star::frame::XDispatch >         m_xDispatch;
  73 };
  74
  75 SfxQueryStatus_Impl::SfxQueryStatus_Impl( const Reference< XDispatchProvider >& rDispatchProvider, sal_uInt16 nSlotId, const OUString& rCommand ) :
  76     m_bQueryInProgress( sal_False ),
  77     m_eState( SFX_ITEM_DISABLED ),
  78     m_pItem( 0 ),
  79     m_nSlotID( nSlotId )
  80 {
  81     m_aCommand.Complete = rCommand;
  82     Reference< XURLTransformer > xTrans( URLTransformer::create( ::comphelper::getProcessComponentContext() ) );
  83     xTrans->parseStrict( m_aCommand );
  84     if ( rDispatchProvider.is() )
  85         m_xDispatch = rDispatchProvider->queryDispatch( m_aCommand, OUString(), 0 );
  86     m_aCondition.reset();
  87 }
  88
  89 SfxQueryStatus_Impl::~SfxQueryStatus_Impl()
  90 {
  91 }
  92
  93 void SAL_CALL SfxQueryStatus_Impl::disposing( const EventObject& )
  94 throw( RuntimeException )
  95 {
  96     SolarMutexGuard aGuard;
  97     m_xDispatch.clear();
  98 }
  99
 100 void SAL_CALL SfxQueryStatus_Impl::statusChanged( const FeatureStateEvent& rEvent)
 101 throw( RuntimeException )
 102 {
 103     SolarMutexGuard aGuard;
 104
 105     m_pItem  = NULL;
 106     m_eState = SFX_ITEM_DISABLED;
 107
 108     if ( rEvent.IsEnabled )
 109     {
 110         m_eState = SFX_ITEM_AVAILABLE;
 111         ::com::sun::star::uno::Type pType = rEvent.State.getValueType();
 112
 113         if ( pType == ::getBooleanCppuType() )
 114         {
 115             sal_Bool bTemp = false;
 116             rEvent.State >>= bTemp ;
 117             m_pItem = new SfxBoolItem( m_nSlotID, bTemp );
 118         }
 119         else if ( pType == ::getCppuType((const sal_uInt16*)0) )
 120         {
 121             sal_uInt16 nTemp = 0;
 122             rEvent.State >>= nTemp ;
 123             m_pItem = new SfxUInt16Item( m_nSlotID, nTemp );
 124         }
 125         else if ( pType == ::getCppuType((const sal_uInt32*)0) )
 126         {
 127             sal_uInt32 nTemp = 0;
 128             rEvent.State >>= nTemp ;
 129             m_pItem = new SfxUInt32Item( m_nSlotID, nTemp );
 130         }
 131         else if ( pType == ::getCppuType((const OUString*)0) )
 132         {
 133             OUString sTemp ;
 134             rEvent.State >>= sTemp ;
 135             m_pItem = new SfxStringItem( m_nSlotID, sTemp );
 136         }
 137         else if ( pType == ::getCppuType((const ::com::sun::star::frame::status::ItemStatus*)0) )
 138         {
 139             ItemStatus aItemStatus;
 140             rEvent.State >>= aItemStatus;
 141             m_eState = aItemStatus.State;
 142             m_pItem = new SfxVoidItem( m_nSlotID );
 143         }
 144         else if ( pType == ::getCppuType((const ::com::sun::star::frame::status::Visibility*)0) )
 145         {
 146             Visibility aVisibilityStatus;
 147             rEvent.State >>= aVisibilityStatus;
 148             m_pItem = new SfxVisibilityItem( m_nSlotID, aVisibilityStatus.bVisible );
 149         }
 150         else
 151         {
 152             m_eState = SFX_ITEM_UNKNOWN;
 153             m_pItem  = new SfxVoidItem( m_nSlotID );
 154         }
 155     }
 156
 157     if ( m_pItem )
 158         DeleteItemOnIdle( m_pItem );
 159
 160     try
 161     {
 162         m_aCondition.set();
 163         m_xDispatch->removeStatusListener( Reference< XStatusListener >( static_cast< cppu::OWeakObject* >( this ), UNO_QUERY ),
 164                                            m_aCommand );
 165     }
 166     catch ( Exception& )
 167     {
 168     }
 169 }
 170
 171 // Query method
 172 SfxItemState SfxQueryStatus_Impl::QueryState( SfxPoolItem*& rpPoolItem )
 173 {
 174     SolarMutexGuard aGuard;
 175     if ( !m_bQueryInProgress )
 176     {
 177         m_pItem  = NULL;
 178         m_eState = SFX_ITEM_DISABLED;
 179
 180         if ( m_xDispatch.is() )
 181         {
 182             try
 183             {
 184                 m_aCondition.reset();
 185                 m_bQueryInProgress = sal_True;
 186                 m_xDispatch->addStatusListener( Reference< XStatusListener >( static_cast< cppu::OWeakObject* >( this ), UNO_QUERY ),
 187                                                 m_aCommand );
 188             }
 189             catch ( Exception& )
 190             {
 191                 m_aCondition.set();
 192             }
 193         }
 194         else
 195             m_aCondition.set();
 196     }
 197
 198     m_aCondition.wait();
 199
 200     m_bQueryInProgress = sal_False;
 201     rpPoolItem = m_pItem;
 202     return m_eState;
 203 }
 204
 205 //*************************************************************************
 206
 207 SfxQueryStatus::SfxQueryStatus( const Reference< XDispatchProvider >& rDispatchProvider, sal_uInt16 nSlotId, const OUString& rCommand )
 208 {
 209     m_pSfxQueryStatusImpl = new SfxQueryStatus_Impl( rDispatchProvider, nSlotId, rCommand );
 210     m_xStatusListener     = Reference< XStatusListener >(
 211                                 static_cast< cppu::OWeakObject* >( m_pSfxQueryStatusImpl ),
 212                                 UNO_QUERY );
 213 }
 214
 215 SfxQueryStatus::~SfxQueryStatus()
 216 {
 217 }
 218
 219 SfxItemState SfxQueryStatus::QueryState( SfxPoolItem*& rpPoolItem )
 220 {
 221     SolarMutexGuard aGuard;
 222     return m_pSfxQueryStatusImpl->QueryState( rpPoolItem );
 223 }
 224
 225 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */