dtrans/source/generic/generic_clipboard.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 <generic_clipboard.hxx>
  21 #include <com/sun/star/lang/DisposedException.hpp>
  22 #include <com/sun/star/datatransfer/clipboard/RenderingCapabilities.hpp>
  23
  24 using namespace com::sun::star::datatransfer;
  25 using namespace com::sun::star::datatransfer::clipboard;
  26 using namespace com::sun::star::lang;
  27 using namespace com::sun::star::uno;
  28 using namespace cppu;
  29 using namespace osl;
  30
  31 using ::dtrans::GenericClipboard;
  32
  33 GenericClipboard::GenericClipboard() :
  34     WeakComponentImplHelper4< XClipboardEx, XClipboardNotifier, XServiceInfo, XInitialization > (m_aMutex),
  35     m_bInitialized(sal_False)
  36 {
  37 }
  38
  39 // ------------------------------------------------------------------------
  40
  41 GenericClipboard::~GenericClipboard()
  42 {
  43 }
  44
  45 // ------------------------------------------------------------------------
  46
  47 void SAL_CALL GenericClipboard::initialize( const Sequence< Any >& aArguments )
  48     throw(Exception, RuntimeException)
  49 {
  50     if (!m_bInitialized)
  51     {
  52         for (sal_Int32 n = 0, nmax = aArguments.getLength(); n < nmax; n++)
  53             if (aArguments[n].getValueType() == getCppuType((OUString *) 0))
  54             {
  55                 aArguments[0] >>= m_aName;
  56                 break;
  57             }
  58     }
  59 }
  60
  61 // ------------------------------------------------------------------------
  62
  63 OUString SAL_CALL GenericClipboard::getImplementationName(  )
  64     throw(RuntimeException)
  65 {
  66     return OUString(GENERIC_CLIPBOARD_IMPLEMENTATION_NAME);
  67 }
  68
  69 // ------------------------------------------------------------------------
  70
  71 sal_Bool SAL_CALL GenericClipboard::supportsService( const OUString& ServiceName )
  72     throw(RuntimeException)
  73 {
  74     Sequence < OUString > SupportedServicesNames = GenericClipboard_getSupportedServiceNames();
  75
  76     for ( sal_Int32 n = SupportedServicesNames.getLength(); n--; )
  77         if ( SupportedServicesNames[n] == ServiceName )
  78             return sal_True;
  79
  80     return sal_False;
  81 }
  82
  83 // ------------------------------------------------------------------------
  84
  85 Sequence< OUString > SAL_CALL GenericClipboard::getSupportedServiceNames(    )
  86     throw(RuntimeException)
  87 {
  88     return GenericClipboard_getSupportedServiceNames();
  89 }
  90
  91 // ------------------------------------------------------------------------
  92
  93 Reference< XTransferable > SAL_CALL GenericClipboard::getContents()
  94     throw(RuntimeException)
  95 {
  96     MutexGuard aGuard(m_aMutex);
  97     return m_aContents;
  98 }
  99
 100 // ------------------------------------------------------------------------
 101
 102 void SAL_CALL GenericClipboard::setContents(const Reference< XTransferable >& xTrans,
 103                                       const Reference< XClipboardOwner >& xClipboardOwner )
 104     throw(RuntimeException)
 105 {
 106     // remember old values for callbacks before setting the new ones.
 107     ClearableMutexGuard aGuard(m_aMutex);
 108
 109     Reference< XClipboardOwner > oldOwner(m_aOwner);
 110     m_aOwner = xClipboardOwner;
 111
 112     Reference< XTransferable > oldContents(m_aContents);
 113     m_aContents = xTrans;
 114
 115     aGuard.clear();
 116
 117     // notify old owner on loss of ownership
 118     if( oldOwner.is() )
 119         oldOwner->lostOwnership(static_cast < XClipboard * > (this), oldContents);
 120
 121     // notify all listeners on content changes
 122     OInterfaceContainerHelper *pContainer =
 123         rBHelper.aLC.getContainer(getCppuType( (Reference < XClipboardListener > *) 0));
 124     if (pContainer)
 125     {
 126         ClipboardEvent aEvent(static_cast < XClipboard * > (this), m_aContents);
 127         OInterfaceIteratorHelper aIterator(*pContainer);
 128
 129         while (aIterator.hasMoreElements())
 130         {
 131             Reference < XClipboardListener > xListener(aIterator.next(), UNO_QUERY);
 132             if (xListener.is())
 133                 xListener->changedContents(aEvent);
 134         }
 135     }
 136 }
 137
 138 // ------------------------------------------------------------------------
 139
 140 OUString SAL_CALL GenericClipboard::getName()
 141     throw(RuntimeException)
 142 {
 143     return m_aName;
 144 }
 145
 146 // ------------------------------------------------------------------------
 147
 148 sal_Int8 SAL_CALL GenericClipboard::getRenderingCapabilities()
 149     throw(RuntimeException)
 150 {
 151     return RenderingCapabilities::Delayed;
 152 }
 153
 154
 155 // ------------------------------------------------------------------------
 156
 157 void SAL_CALL GenericClipboard::addClipboardListener( const Reference< XClipboardListener >& listener )
 158     throw(RuntimeException)
 159 {
 160     MutexGuard aGuard( rBHelper.rMutex );
 161     OSL_ENSURE( !rBHelper.bInDispose, "do not add listeners in the dispose call" );
 162     OSL_ENSURE( !rBHelper.bDisposed, "object is disposed" );
 163     if (!rBHelper.bInDispose && !rBHelper.bDisposed)
 164         rBHelper.aLC.addInterface( getCppuType( (const ::com::sun::star::uno::Reference< XClipboardListener > *) 0), listener );
 165 }
 166
 167 // ------------------------------------------------------------------------
 168
 169 void SAL_CALL GenericClipboard::removeClipboardListener( const Reference< XClipboardListener >& listener )
 170     throw(RuntimeException)
 171 {
 172     MutexGuard aGuard( rBHelper.rMutex );
 173     OSL_ENSURE( !rBHelper.bDisposed, "object is disposed" );
 174     if (!rBHelper.bInDispose && !rBHelper.bDisposed)
 175         rBHelper.aLC.removeInterface( getCppuType( (const Reference< XClipboardListener > *) 0 ), listener ); \
 176 }
 177
 178 // ------------------------------------------------------------------------
 179
 180 Sequence< OUString > SAL_CALL GenericClipboard_getSupportedServiceNames()
 181 {
 182     Sequence< OUString > aRet(1);
 183     aRet[0] = OUString("com.sun.star.datatransfer.clipboard.GenericClipboard");
 184     return aRet;
 185 }
 186
 187 // ------------------------------------------------------------------------
 188
 189 Reference< XInterface > SAL_CALL GenericClipboard_createInstance(
 190     const Reference< XMultiServiceFactory > & /*xMultiServiceFactory*/)
 191 {
 192     return Reference < XInterface >( ( OWeakObject * ) new GenericClipboard());
 193 }
 194
 195 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */