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