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/* -*- 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 <controlfeatureinterception.hxx>
#include <urltransformer.hxx>
#include <osl/diagnose.h>
namespace frm
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::frame;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::lang;
ControlFeatureInterception::ControlFeatureInterception( const Reference< XComponentContext >& _rxORB )
:m_pUrlTransformer( new UrlTransformer( _rxORB ) )
{
}
void ControlFeatureInterception::registerDispatchProviderInterceptor( const Reference< XDispatchProviderInterceptor >& _rxInterceptor )
{
if ( !_rxInterceptor.is() )
{
OSL_FAIL( "ControlFeatureInterception::registerDispatchProviderInterceptor: invalid interceptor!" );
return;
}
if ( m_xFirstDispatchInterceptor.is() )
{
// there is already an interceptor; the new one will become its master
_rxInterceptor->setSlaveDispatchProvider( m_xFirstDispatchInterceptor );
m_xFirstDispatchInterceptor->setMasterDispatchProvider( m_xFirstDispatchInterceptor );
}
// we are the master of the chain's first interceptor
m_xFirstDispatchInterceptor = _rxInterceptor;
m_xFirstDispatchInterceptor->setMasterDispatchProvider( nullptr );
// it's the first of the interceptor chain
}
void ControlFeatureInterception::releaseDispatchProviderInterceptor( const Reference< XDispatchProviderInterceptor >& _rxInterceptor )
{
if ( !_rxInterceptor.is() )
{
OSL_FAIL( "ControlFeatureInterception::releaseDispatchProviderInterceptor: invalid interceptor!" );
return;
}
Reference< XDispatchProviderInterceptor > xChainWalk( m_xFirstDispatchInterceptor );
if ( m_xFirstDispatchInterceptor == _rxInterceptor )
{ // our chain will have a new first element
Reference< XDispatchProviderInterceptor > xSlave( m_xFirstDispatchInterceptor->getSlaveDispatchProvider(), UNO_QUERY );
m_xFirstDispatchInterceptor = xSlave;
}
// do this before removing the interceptor from the chain as we won't know it's slave afterwards)
while ( xChainWalk.is() )
{
// walk along the chain of interceptors and look for the interceptor that has to be removed
Reference< XDispatchProviderInterceptor > xSlave( xChainWalk->getSlaveDispatchProvider(), UNO_QUERY );
if ( xChainWalk == _rxInterceptor )
{
// old master may be an interceptor too
Reference< XDispatchProviderInterceptor > xMaster( xChainWalk->getMasterDispatchProvider(), UNO_QUERY );
// unchain the interceptor that has to be removed
xChainWalk->setSlaveDispatchProvider( nullptr );
xChainWalk->setMasterDispatchProvider( nullptr );
// reconnect the chain
if ( xMaster.is() )
{
xMaster->setSlaveDispatchProvider( xSlave );
}
// if somebody has registered the same interceptor twice, then we will remove
// it once per call ...
break;
}
xChainWalk = xSlave;
}
}
void ControlFeatureInterception::dispose()
{
// release all interceptors
Reference< XDispatchProviderInterceptor > xInterceptor( m_xFirstDispatchInterceptor );
m_xFirstDispatchInterceptor.clear();
while ( xInterceptor.is() )
{
// tell the interceptor it has a new (means no) predecessor
xInterceptor->setMasterDispatchProvider( nullptr );
// ask for its successor
Reference< XDispatchProvider > xSlave = xInterceptor->getSlaveDispatchProvider();
// and give it the new (means no) successoert
xInterceptor->setSlaveDispatchProvider( nullptr );
// start over with the next chain element
xInterceptor.set(xSlave, css::uno::UNO_QUERY);
}
}
Reference< XDispatch > ControlFeatureInterception::queryDispatch( const URL& _rURL )
{
Reference< XDispatch > xDispatcher;
if ( m_xFirstDispatchInterceptor.is() )
xDispatcher = m_xFirstDispatchInterceptor->queryDispatch( _rURL, OUString(), 0 );
return xDispatcher;
}
Reference< XDispatch > ControlFeatureInterception::queryDispatch( const char* _pAsciiURL )
{
return queryDispatch( m_pUrlTransformer->getStrictURLFromAscii( _pAsciiURL ) );
}
} // namespace frm
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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