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#include "ListenerHelper.h"

using com::sun::star::frame::XFrame;
using com::sun::star::frame::XDispatch;
using com::sun::star::frame::XStatusListener;
using com::sun::star::lang::XEventListener;
using com::sun::star::lang::EventObject;
using com::sun::star::uno::Reference;
using com::sun::star::uno::RuntimeException;
using com::sun::star::frame::FeatureStateEvent;

static AllListeners aListeners;

void ListenerHelper::AddListener(
    const Reference < XFrame >& xFrame,
    const Reference < XStatusListener > xControl,
    const ::rtl::OUString& aCommand )
{
    sal_uInt32 i=0;
    sal_uInt32 nSize = aListeners.size();
    for ( i=0; i<nSize; i++ )
        if ( aListeners[i].xFrame == xFrame )
            break;

    OSL_ENSURE( i<nSize, "No dispatch found for this listener!" );
    aListeners[i].aContainer[aCommand].push_back( xControl );
}

void ListenerHelper::RemoveListener(
    const Reference < XFrame >& xFrame,
    const Reference < XStatusListener > xControl,
    const ::rtl::OUString& aCommand )
{
    sal_uInt32 nSize = aListeners.size();
    for ( sal_uInt32 i=0; i<nSize; i++ )
    {
        if ( aListeners[i].xFrame == xFrame )
        {
            StatusListeners& aL = aListeners[i].aContainer[aCommand];
            StatusListeners::iterator aIter = aL.begin();
            while ( aIter != aL.end() )
            {
                if ( (*aIter) == xControl )
                {
                    aL.erase( aIter );
                    break;
                }

                ++aIter;
            }
        }
    }
}

void ListenerHelper::Notify(
        const Reference < XFrame >& xFrame,
        const ::rtl::OUString& aCommand,
        FeatureStateEvent& rEvent )
{
    sal_uInt32 nSize = aListeners.size();
    for ( sal_uInt32 i=0; i<nSize; i++ )
    {
        if ( aListeners[i].xFrame == xFrame )
        {
            rEvent.Source = aListeners[i].xDispatch;
            StatusListeners& aL = aListeners[i].aContainer[aCommand];
            StatusListeners::iterator aIter = aL.begin();
            while ( aIter != aL.end() )
            {
                (*aIter)->statusChanged( rEvent );
                ++aIter;
            }
        }
    }
}

com::sun::star::uno::Reference < XDispatch > ListenerHelper::GetDispatch(
        const Reference < XFrame >& xFrame,
        const ::rtl::OUString& aCommand )
{
    sal_uInt32 nSize = aListeners.size();
    for ( sal_uInt32 i=0; i<nSize; i++ )
    {
        if ( aListeners[i].xFrame == xFrame )
            return aListeners[i].xDispatch;
    }

    return Reference < XDispatch >();
}

void ListenerHelper::AddDispatch(
        const Reference < XDispatch > xDispatch,
        const Reference < XFrame >& xFrame,
        const ::rtl::OUString& aCommand )
{
    ListenerItem aItem;
    aItem.xFrame = xFrame;
    aItem.xDispatch = xDispatch;
    aListeners.push_back( aItem );
    xFrame->addEventListener( new ListenerItemEventListener( xFrame ) );
}

void SAL_CALL ListenerItemEventListener::disposing( const EventObject& aEvent) throw (RuntimeException)
{
    AllListeners::iterator aIter = aListeners.begin();
    while ( aIter != aListeners.end() )
    {
        if ( (*aIter).xFrame == mxFrame )
        {
            aListeners.erase( aIter );
            break;
        }

        ++aIter;
    }
}

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