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