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 #include <osl/diagnose.h>
  26
  27 using namespace com::sun::star::datatransfer;
  28 using namespace com::sun::star::datatransfer::clipboard;
  29 using namespace com::sun::star::lang;
  30 using namespace com::sun::star::uno;
  31 using namespace cppu;
  32 using namespace osl;
  33
  34 using ::dtrans::GenericClipboard;
  35
  36 GenericClipboard::GenericClipboard() :
  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     std::unique_lock 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     std::unique_lock 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.unlock();
  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     aGuard.lock();
  99     ClipboardEvent aEvent(static_cast < XClipboard * > (this), m_aContents);
 100     maClipboardListeners.notifyEach(aGuard, &XClipboardListener::changedContents, aEvent);
 101 }
 102
 103 OUString SAL_CALL GenericClipboard::getName()
 104 {
 105     return m_aName;
 106 }
 107
 108 sal_Int8 SAL_CALL GenericClipboard::getRenderingCapabilities()
 109 {
 110     return RenderingCapabilities::Delayed;
 111 }
 112
 113 void SAL_CALL GenericClipboard::addClipboardListener( const Reference< XClipboardListener >& listener )
 114 {
 115     std::unique_lock aGuard( m_aMutex );
 116     OSL_ENSURE( !m_bDisposed, "object is disposed" );
 117     if (!m_bDisposed)
 118         maClipboardListeners.addInterface( aGuard, listener );
 119 }
 120
 121 void SAL_CALL GenericClipboard::removeClipboardListener( const Reference< XClipboardListener >& listener )
 122 {
 123     std::unique_lock aGuard( m_aMutex );
 124     OSL_ENSURE( !m_bDisposed, "object is disposed" );
 125     if (!m_bDisposed)
 126         maClipboardListeners.removeInterface( aGuard, listener );
 127 }
 128
 129 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
 130 dtrans_GenericClipboard_get_implementation(
 131     css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
 132 {
 133     return cppu::acquire(new GenericClipboard());
 134 }
 135
 136 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */