/* -*- 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 <sal/config.h>

#include <CommandDispatch.hxx>

#include <com/sun/star/util/URLTransformer.hpp>

using namespace ::com::sun::star;

using ::com::sun::star::uno::Reference;

using ::com::sun::star::uno::Sequence;

namespace chart

{

CommandDispatch::CommandDispatch(

    const Reference< uno::XComponentContext > & xContext ) :

        m_xContext( xContext )

{

}

CommandDispatch::~CommandDispatch()

{}

void CommandDispatch::initialize()

{}

// ____ WeakComponentImplHelperBase ____

/// is called when this is disposed

void CommandDispatch::disposing(std::unique_lock<std::mutex>& rGuard)

{

    Reference< uno::XInterface > xEventSource(static_cast< cppu::OWeakObject* >( this ));

    for( auto& rElement : m_aListeners )

        rElement.second.disposeAndClear( rGuard, xEventSource );

    m_aListeners.clear();

}

// ____ XDispatch ____

void SAL_CALL CommandDispatch::dispatch( const util::URL& /* URL */, const Sequence< beans::PropertyValue >& /* Arguments */ )

{}

void SAL_CALL CommandDispatch::addStatusListener( const Reference< frame::XStatusListener >& Control, const util::URL& URL )

{

    {

        std::unique_lock g(m_aMutex);

        tListenerMap::iterator aIt( m_aListeners.find( URL.Complete ));

        if( aIt == m_aListeners.end())

        {

            aIt = m_aListeners.emplace(

                        std::piecewise_construct,

                        std::forward_as_tuple(URL.Complete),

                        std::forward_as_tuple()).first;

        }

        assert( aIt != m_aListeners.end());

        aIt->second.addInterface( g, Control );

    }

    fireStatusEvent( URL.Complete, Control );

}

void SAL_CALL CommandDispatch::removeStatusListener( const Reference< frame::XStatusListener >& Control, const util::URL& URL )

{

    std::unique_lock g(m_aMutex);

    tListenerMap::iterator aIt( m_aListeners.find( URL.Complete ));

    if( aIt != m_aListeners.end())

        (*aIt).second.removeInterface( g, Control );

}

// ____ XModifyListener ____

void SAL_CALL CommandDispatch::modified( const lang::EventObject& /* aEvent */ )

{

    fireAllStatusEvents( nullptr );

}

// ____ XEventListener (base of XModifyListener) ____

void SAL_CALL CommandDispatch::disposing( const lang::EventObject& /* Source */ )

{}

void CommandDispatch::fireAllStatusEvents(

    const css::uno::Reference< css::frame::XStatusListener > & xSingleListener )

{

    fireStatusEvent( OUString(), xSingleListener );

}

void CommandDispatch::fireStatusEventForURL(

    const OUString & rURL,

    const uno::Any & rState,

    bool bEnabled,

    const Reference< frame::XStatusListener > & xSingleListener /* = 0 */)

{

    // prepare event to send

    util::URL aURL;

    aURL.Complete = rURL;

    if( !m_xURLTransformer.is())

    {

        m_xURLTransformer.set( util::URLTransformer::create(m_xContext) );

    }

    m_xURLTransformer->parseStrict( aURL );

    frame::FeatureStateEvent aEventToSend(

        static_cast< cppu::OWeakObject* >( this ), // Source

        aURL,                                      // FeatureURL

        OUString(),                                // FeatureDescriptor

        bEnabled,                                  // IsEnabled

        false,                                     // Requery

        rState                                     // State

        );

    // send event either to single listener or all registered ones

    if( xSingleListener.is())

        xSingleListener->statusChanged( aEventToSend );

    else

    {

        tListenerMap::iterator aIt( m_aListeners.find( aURL.Complete ));

        if( aIt != m_aListeners.end())

        {

            std::unique_lock g(m_aMutex);

            aIt->second.notifyEach(g, &css::frame::XStatusListener::statusChanged, aEventToSend);

        }

    }

}

} //  namespace chart

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