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#include "sal/config.h"
#include <unotools/options.hxx>

using utl::detail::Options;
using utl::ConfigurationBroadcaster;

utl::ConfigurationListener::~ConfigurationListener() {}

ConfigurationBroadcaster::ConfigurationBroadcaster()
: mpList(0)
, m_nBroadcastBlocked( 0 )
, m_nBlockedHint( 0 )
{
}

ConfigurationBroadcaster::~ConfigurationBroadcaster()
{
    delete mpList;
}

void ConfigurationBroadcaster::AddListener( utl::ConfigurationListener* pListener )
{
    if ( !mpList )
        mpList = new IMPL_ConfigurationListenerList;
    mpList->push_back( pListener );
}

void ConfigurationBroadcaster::RemoveListener( utl::ConfigurationListener* pListener )
{
    if ( mpList ) {
        for ( IMPL_ConfigurationListenerList::iterator it = mpList->begin();
              it != mpList->end();
              ++it
        ) {
            if ( *it == pListener ) {
                mpList->erase( it );
                break;
            }
        }
    }
}

void ConfigurationBroadcaster::NotifyListeners( sal_uInt32 nHint )
{
    if ( m_nBroadcastBlocked )
        m_nBlockedHint |= nHint;
    else
    {
        nHint |= m_nBlockedHint;
        m_nBlockedHint = 0;
        if ( mpList ) {
            for ( size_t n = 0; n < mpList->size(); n++ ) {
                (*mpList)[ n ]->ConfigurationChanged( this, nHint );
            }
        }
    }
}

void ConfigurationBroadcaster::BlockBroadcasts( bool bBlock )
{
    if ( bBlock )
        ++m_nBroadcastBlocked;
    else if ( m_nBroadcastBlocked )
    {
        if ( --m_nBroadcastBlocked == 0 )
            NotifyListeners( 0 );
    }
}

Options::Options()
{
}

Options::~Options()
{
}

void Options::ConfigurationChanged( ConfigurationBroadcaster*, sal_uInt32 nHint )
{
    NotifyListeners( nHint );
}


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