/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_dtrans.hxx"

#include <generic_clipboard.hxx>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/datatransfer/clipboard/RenderingCapabilities.hpp>

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

using ::dtrans::GenericClipboard;
using ::rtl::OUString;

GenericClipboard::GenericClipboard() :
	WeakComponentImplHelper4< XClipboardEx, XClipboardNotifier, XServiceInfo, XInitialization > (m_aMutex),
	m_bInitialized(sal_False)
{
}

// ------------------------------------------------------------------------

GenericClipboard::~GenericClipboard()
{
}

// ------------------------------------------------------------------------

void SAL_CALL GenericClipboard::initialize( const Sequence< Any >& aArguments ) 
	throw(Exception, RuntimeException)
{
	if (!m_bInitialized)
	{
		for (sal_Int32 n = 0, nmax = aArguments.getLength(); n < nmax; n++)
			if (aArguments[n].getValueType() == getCppuType((OUString *) 0))
			{
				aArguments[0] >>= m_aName;
				break;
			}
	}
}

// ------------------------------------------------------------------------

OUString SAL_CALL GenericClipboard::getImplementationName(  ) 
	throw(RuntimeException)
{
	return OUString::createFromAscii(GENERIC_CLIPBOARD_IMPLEMENTATION_NAME);
}

// ------------------------------------------------------------------------

sal_Bool SAL_CALL GenericClipboard::supportsService( const OUString& ServiceName ) 
	throw(RuntimeException)
{
	Sequence < OUString > SupportedServicesNames = GenericClipboard_getSupportedServiceNames();

	for ( sal_Int32 n = SupportedServicesNames.getLength(); n--; )
		if (SupportedServicesNames[n].compareTo(ServiceName) == 0)
			return sal_True;

	return sal_False;
}

// ------------------------------------------------------------------------

Sequence< OUString > SAL_CALL GenericClipboard::getSupportedServiceNames(	 ) 
	throw(RuntimeException)
{
	return GenericClipboard_getSupportedServiceNames();
}

// ------------------------------------------------------------------------

Reference< XTransferable > SAL_CALL GenericClipboard::getContents() 
    throw(RuntimeException)
{
    MutexGuard aGuard(m_aMutex);
    return m_aContents;
}

// ------------------------------------------------------------------------

void SAL_CALL GenericClipboard::setContents(const Reference< XTransferable >& xTrans, 
                                      const Reference< XClipboardOwner >& xClipboardOwner ) 
    throw(RuntimeException)
{
    // remember old values for callbacks before setting the new ones.
    ClearableMutexGuard aGuard(m_aMutex);

    Reference< XClipboardOwner > oldOwner(m_aOwner);
    m_aOwner = xClipboardOwner;

    Reference< XTransferable > oldContents(m_aContents);
    m_aContents = xTrans;

    aGuard.clear();

    // notify old owner on loss of ownership
    if( oldOwner.is() )
    	oldOwner->lostOwnership(static_cast < XClipboard * > (this), oldContents);

    // notify all listeners on content changes
    OInterfaceContainerHelper *pContainer = 
        rBHelper.aLC.getContainer(getCppuType( (Reference < XClipboardListener > *) 0));
    if (pContainer)
    {
        ClipboardEvent aEvent(static_cast < XClipboard * > (this), m_aContents);
        OInterfaceIteratorHelper aIterator(*pContainer);

        while (aIterator.hasMoreElements())
        {
            Reference < XClipboardListener > xListener(aIterator.next(), UNO_QUERY);
            if (xListener.is())
                xListener->changedContents(aEvent);
        }
    }
}

// ------------------------------------------------------------------------

OUString SAL_CALL GenericClipboard::getName() 
    throw(RuntimeException)
{
    return m_aName;
}

// ------------------------------------------------------------------------

sal_Int8 SAL_CALL GenericClipboard::getRenderingCapabilities()
    throw(RuntimeException)
{
    return RenderingCapabilities::Delayed;
}


// ------------------------------------------------------------------------

void SAL_CALL GenericClipboard::addClipboardListener( const Reference< XClipboardListener >& listener ) 
    throw(RuntimeException)
{
    MutexGuard aGuard( rBHelper.rMutex );
    OSL_ENSURE( !rBHelper.bInDispose, "do not add listeners in the dispose call" );
    OSL_ENSURE( !rBHelper.bDisposed, "object is disposed" );
    if (!rBHelper.bInDispose && !rBHelper.bDisposed)
        rBHelper.aLC.addInterface( getCppuType( (const ::com::sun::star::uno::Reference< XClipboardListener > *) 0), listener );
}

// ------------------------------------------------------------------------

void SAL_CALL GenericClipboard::removeClipboardListener( const Reference< XClipboardListener >& listener ) 
    throw(RuntimeException)
{
    MutexGuard aGuard( rBHelper.rMutex );
    OSL_ENSURE( !rBHelper.bDisposed, "object is disposed" );
    if (!rBHelper.bInDispose && !rBHelper.bDisposed)
        rBHelper.aLC.removeInterface( getCppuType( (const Reference< XClipboardListener > *) 0 ), listener ); \
}

// ------------------------------------------------------------------------

Sequence< OUString > SAL_CALL GenericClipboard_getSupportedServiceNames()
{
	Sequence< OUString > aRet(1);
	aRet[0] = OUString::createFromAscii("com.sun.star.datatransfer.clipboard.GenericClipboard");
	return aRet;
}

// ------------------------------------------------------------------------

Reference< XInterface > SAL_CALL GenericClipboard_createInstance( 
	const Reference< XMultiServiceFactory > & /*xMultiServiceFactory*/)
{
	return Reference < XInterface >( ( OWeakObject * ) new GenericClipboard());
}