/**************************************************************
 * 
 * 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
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"

#include <X11_selection.hxx>

using namespace x11;
using namespace rtl;
using namespace com::sun::star::lang;
using namespace com::sun::star::awt;
using namespace com::sun::star::datatransfer;
using namespace com::sun::star::datatransfer::dnd;

DropTarget::DropTarget() :
		::cppu::WeakComponentImplHelper3<
			XDropTarget,
			XInitialization,
			XServiceInfo
		>( m_aMutex ),
	m_bActive( false ),
	m_nDefaultActions( 0 ),
	m_aTargetWindow( None ),
	m_pSelectionManager( NULL )
{
}

DropTarget::~DropTarget()
{
	if( m_pSelectionManager )
		m_pSelectionManager->deregisterDropTarget( m_aTargetWindow );
}

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

void DropTarget::initialize( const Sequence< Any >& arguments ) throw( ::com::sun::star::uno::Exception )
{
	if( arguments.getLength() > 1 )
	{
		OUString aDisplayName;
		Reference< XDisplayConnection > xConn;
		arguments.getConstArray()[0] >>= xConn;
		if( xConn.is() )
		{
			Any aIdentifier;
			aIdentifier >>= aDisplayName;
		}

		m_pSelectionManager = &SelectionManager::get( aDisplayName );
		m_xSelectionManager = static_cast< XDragSource* >(m_pSelectionManager);
		m_pSelectionManager->initialize( arguments );

        if( m_pSelectionManager->getDisplay() ) // #136582# sanity check
        {
            sal_Size aWindow = None;
            arguments.getConstArray()[1] >>= aWindow;
            m_pSelectionManager->registerDropTarget( aWindow, this );
            m_aTargetWindow = aWindow;
            m_bActive = true;
        }
	}
}

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

void DropTarget::addDropTargetListener( const Reference< XDropTargetListener >& xListener ) throw()
{
	::osl::Guard< ::osl::Mutex > aGuard( m_aMutex );

	m_aListeners.push_back( xListener );
}

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

void DropTarget::removeDropTargetListener( const Reference< XDropTargetListener >& xListener ) throw()
{
	::osl::Guard< ::osl::Mutex > aGuard( m_aMutex );

	m_aListeners.remove( xListener );
}

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

sal_Bool DropTarget::isActive() throw()
{
	return m_bActive;
}

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

void DropTarget::setActive( sal_Bool active ) throw()
{
	::osl::Guard< ::osl::Mutex > aGuard( m_aMutex );

	m_bActive = active;
}

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

sal_Int8 DropTarget::getDefaultActions() throw()
{
	return m_nDefaultActions;
}

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

void DropTarget::setDefaultActions( sal_Int8 actions ) throw()
{
	::osl::Guard< ::osl::Mutex > aGuard( m_aMutex );

	m_nDefaultActions = actions;
}

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

void DropTarget::drop( const DropTargetDropEvent& dtde ) throw()
{
	osl::ClearableGuard< ::osl::Mutex > aGuard( m_aMutex );
	std::list< Reference< XDropTargetListener > > aListeners( m_aListeners );
	aGuard.clear();

	for( std::list< Reference< XDropTargetListener > >::iterator it = aListeners.begin(); it!= aListeners.end(); ++it )
	{
		(*it)->drop( dtde );
	}
}

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

void DropTarget::dragEnter( const DropTargetDragEnterEvent& dtde ) throw()
{
	osl::ClearableGuard< ::osl::Mutex > aGuard( m_aMutex );
	std::list< Reference< XDropTargetListener > > aListeners( m_aListeners );
	aGuard.clear();

	for( std::list< Reference< XDropTargetListener > >::iterator it = aListeners.begin(); it!= aListeners.end(); ++it )
	{
		(*it)->dragEnter( dtde );
	}
}

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

void DropTarget::dragExit( const DropTargetEvent& dte ) throw()
{
	osl::ClearableGuard< ::osl::Mutex > aGuard( m_aMutex );
	std::list< Reference< XDropTargetListener > > aListeners( m_aListeners );
	aGuard.clear();

	for( std::list< Reference< XDropTargetListener > >::iterator it = aListeners.begin(); it!= aListeners.end(); ++it )
	{
		(*it)->dragExit( dte );
	}
}

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

void DropTarget::dragOver( const DropTargetDragEvent& dtde ) throw()
{
	osl::ClearableGuard< ::osl::Mutex > aGuard( m_aMutex );
	std::list< Reference< XDropTargetListener > > aListeners( m_aListeners );
	aGuard.clear();

	for( std::list< Reference< XDropTargetListener > >::iterator it = aListeners.begin(); it!= aListeners.end(); ++it )
	{
		(*it)->dragOver( dtde );
	}
}

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

/*
 *	XServiceInfo
 */

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

OUString DropTarget::getImplementationName() throw()
{
	return OUString::createFromAscii(XDND_DROPTARGET_IMPLEMENTATION_NAME);
}

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

sal_Bool DropTarget::supportsService( const OUString& ServiceName ) throw()
{
	Sequence < OUString > SupportedServicesNames = Xdnd_dropTarget_getSupportedServiceNames();

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

	return sal_False;
}

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

Sequence< OUString > DropTarget::getSupportedServiceNames() throw()
{
	return Xdnd_dropTarget_getSupportedServiceNames();
}