1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <osl/diagnose.h>
#include "WinClipboard.hxx"
#include <com/sun/star/datatransfer/clipboard/ClipboardEvent.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <cppuhelper/supportsservice.hxx>
#include "WinClipbImpl.hxx"

using namespace osl;
using namespace std;
using namespace cppu;

using namespace com::sun::star::uno;
using namespace com::sun::star::datatransfer;
using namespace com::sun::star::datatransfer::clipboard;
using namespace com::sun::star::lang;

#define WINCLIPBOARD_IMPL_NAME  "com.sun.star.datatransfer.clipboard.ClipboardW32"

namespace
{
    Sequence< OUString > WinClipboard_getSupportedServiceNames()
    {
        Sequence< OUString > aRet { "com.sun.star.datatransfer.clipboard.SystemClipboard" };
        return aRet;
    }
}

/*XEventListener,*/
CWinClipboard::CWinClipboard( const Reference< XComponentContext >& rxContext, const OUString& aClipboardName ) :
    WeakComponentImplHelper< XSystemClipboard, XFlushableClipboard, XServiceInfo >( m_aCbListenerMutex ),
    m_xContext( rxContext )
{
    m_pImpl.reset( new CWinClipbImpl( aClipboardName, this ) );
}

// XClipboard

// to avoid unnecessary traffic we check first if there is a clipboard
// content which was set via setContent, in this case we don't need
// to query the content from the clipboard, create a new wrapper object
// and so on, we simply return the original XTransferable instead of our
// DOTransferable

Reference< XTransferable > SAL_CALL CWinClipboard::getContents( )
{
    MutexGuard aGuard( m_aMutex );

    if ( rBHelper.bDisposed )
        throw DisposedException("object is already disposed",
                                 static_cast< XClipboardEx* >( this ) );

    if ( nullptr != m_pImpl.get( ) )
        return m_pImpl->getContents( );

    return Reference< XTransferable >( );
}

void SAL_CALL CWinClipboard::setContents( const Reference< XTransferable >& xTransferable,
                                          const Reference< XClipboardOwner >& xClipboardOwner )
{
    MutexGuard aGuard( m_aMutex );

    if ( rBHelper.bDisposed )
        throw DisposedException("object is already disposed",
                                 static_cast< XClipboardEx* >( this ) );

    if ( nullptr != m_pImpl.get( ) )
        m_pImpl->setContents( xTransferable, xClipboardOwner );
}

OUString SAL_CALL CWinClipboard::getName(  )
{
    if ( rBHelper.bDisposed )
        throw DisposedException("object is already disposed",
                                 static_cast< XClipboardEx* >( this ) );

    if ( nullptr != m_pImpl.get( ) )
        return m_pImpl->getName( );

    return OUString();
}

// XFlushableClipboard

void SAL_CALL CWinClipboard::flushClipboard( )
{
    MutexGuard aGuard( m_aMutex );

    if ( rBHelper.bDisposed )
        throw DisposedException("object is already disposed",
                                 static_cast< XClipboardEx* >( this ) );

    if ( nullptr != m_pImpl.get( ) )
        m_pImpl->flushClipboard( );
}

// XClipboardEx

sal_Int8 SAL_CALL CWinClipboard::getRenderingCapabilities(  )
{
    if ( rBHelper.bDisposed )
        throw DisposedException("object is already disposed",
                                 static_cast< XClipboardEx* >( this ) );

    if ( nullptr != m_pImpl.get( ) )
        return CWinClipbImpl::getRenderingCapabilities( );

    return 0;
}

// XClipboardNotifier

void SAL_CALL CWinClipboard::addClipboardListener( const Reference< XClipboardListener >& listener )
{
    if ( rBHelper.bDisposed )
        throw DisposedException("object is already disposed",
                                 static_cast< XClipboardEx* >( this ) );

    // check input parameter
    if ( !listener.is( ) )
        throw IllegalArgumentException("empty reference",
                                        static_cast< XClipboardEx* >( this ),
                                        1 );

    rBHelper.aLC.addInterface( cppu::UnoType<decltype(listener)>::get(), listener );
}

void SAL_CALL CWinClipboard::removeClipboardListener( const Reference< XClipboardListener >& listener )
{
    if ( rBHelper.bDisposed )
        throw DisposedException("object is already disposed",
                                 static_cast< XClipboardEx* >( this ) );

    // check input parameter
    if ( !listener.is( ) )
        throw IllegalArgumentException("empty reference",
                                        static_cast< XClipboardEx* >( this ),
                                        1 );

    rBHelper.aLC.removeInterface( cppu::UnoType<decltype(listener)>::get(), listener );
}

void CWinClipboard::notifyAllClipboardListener( )<--- The function 'notifyAllClipboardListener' is never used.
{
    if ( !rBHelper.bDisposed )<--- outer condition: !rBHelper.bDisposed
    {
        ClearableMutexGuard aGuard( rBHelper.rMutex );
        if ( !rBHelper.bDisposed )<--- identical inner condition: !rBHelper.bDisposed
        {
            aGuard.clear( );

            OInterfaceContainerHelper* pICHelper = rBHelper.aLC.getContainer(
                cppu::UnoType<XClipboardListener>::get());

            if ( pICHelper )
            {
                try
                {
                    OInterfaceIteratorHelper iter(*pICHelper);
                    Reference<XTransferable> rXTransf(m_pImpl->getContents());
                    ClipboardEvent aClipbEvent(static_cast<XClipboard*>(this), rXTransf);

                    while(iter.hasMoreElements())
                    {
                        try
                        {
                            Reference<XClipboardListener> xCBListener(iter.next(), UNO_QUERY);
                            if (xCBListener.is())
                                xCBListener->changedContents(aClipbEvent);
                        }
                        catch(RuntimeException&)
                        {
                            OSL_FAIL( "RuntimeException caught" );
                        }
                    }
                }
                catch(const css::lang::DisposedException&)
                {
                    OSL_FAIL("Service Manager disposed");

                    // no further clipboard changed notifications
                    m_pImpl->unregisterClipboardViewer();
                }

            } // end if
        } // end if
    } // end if
}

// overwritten base class method which will be
// called by the base class dispose method

void SAL_CALL CWinClipboard::disposing()
{
    // do my own stuff
    m_pImpl->dispose( );

    // force destruction of the impl class
    m_pImpl.reset();
}

// XServiceInfo

OUString SAL_CALL CWinClipboard::getImplementationName(  )
{
    return OUString( WINCLIPBOARD_IMPL_NAME );
}

sal_Bool SAL_CALL CWinClipboard::supportsService( const OUString& ServiceName )
{
    return cppu::supportsService(this, ServiceName);
}

Sequence< OUString > SAL_CALL CWinClipboard::getSupportedServiceNames(   )
{
    return WinClipboard_getSupportedServiceNames();
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */