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