input_manager.cpp

VLC Player Source Code

    emit statusChanged( state.i_int );
}

void InputManager::sectionPrev()
{
    if( hasInput() )
    {
        int i_type = var_Type( p_input, "next-chapter" );
        vlc_value_t val; val.b_bool = true;
        var_Set( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
                            "prev-chapter":"prev-title", val );
    }
}

void InputManager::sectionNext()
{
    if( hasInput() )
    {
        int i_type = var_Type( p_input, "next-chapter" );
        vlc_value_t val; val.b_bool = true;
        var_Set( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
                            "next-chapter":"next-title", val );
    }
}

void InputManager::sectionMenu()
{
    if( hasInput() )
    {
        vlc_value_t val, text;
        vlc_value_t root;

        if( var_Change( p_input, "title  0", VLC_VAR_GETLIST, &val, &text ) < 0 )
            return;

        /* XXX is it "Root" or "Title" we want here ?" (set 0 by default) */
        root.i_int = 0;
        for( int i = 0; i < val.p_list->i_count; i++ )
        {
            if( !strcmp( text.p_list->p_values[i].psz_string, "Title" ) )
                root.i_int = i;
        }
        var_Change( p_input, "title  0", VLC_VAR_FREELIST, &val, &text );

        var_Set( p_input, "title  0", root );
    }
}

void InputManager::telexGotoPage( int page )
{
    if( hasInput() )
    {
        const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
        const int i_spu_es = var_GetInteger( p_input, "spu-es" );

        if( i_teletext_es >= 0 && i_teletext_es == i_spu_es )
        {
            vlc_object_t *p_vbi;
            p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
                        "zvbi", FIND_ANYWHERE );
            if( p_vbi )
            {
                var_SetInteger( p_vbi, "vbi-page", page );
                vlc_object_release( p_vbi );
            }
        }
    }
    emit setNewTelexPage( page );
}

void InputManager::telexToggle( bool b_enabled )
{
    if( hasInput() )
    {
        const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
        const int i_spu_es = var_GetInteger( p_input, "spu-es" );

        b_enabled = (i_teletext_es >= 0);
        emit teletextEnabled( b_enabled );
        if( b_enabled && (i_teletext_es == i_spu_es) )
        {
            vlc_object_t *p_vbi;
            int i_page = 100;
            p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
                        "zvbi", FIND_ANYWHERE );
            if( p_vbi )
            {
                i_page = var_GetInteger( p_vbi, "vbi-page" );
                vlc_object_release( p_vbi );
                i_page = b_enabled ? i_page : 0;
                telexGotoPage( i_page );
            }
        }
    }
    else emit teletextEnabled( b_enabled );
}

void InputManager::telexToggleButtons()
{
    if( hasInput() )
    {
        const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
        if( i_teletext_es >= 0 )
        {
            const int i_spu_es = var_GetInteger( p_input, "spu-es" );

            if( i_teletext_es == i_spu_es )
                var_SetInteger( p_input, "spu-es", -1 );
            else
                var_SetInteger( p_input, "spu-es", i_teletext_es );

            emit toggleTelexButtons();
        }
    }
}

void InputManager::telexSetTransparency()
{
    if( hasInput() )
    {
        vlc_object_t *p_vbi;
        p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
                    "zvbi", FIND_ANYWHERE );
        if( p_vbi )
        {
            var_SetBool( p_vbi, "vbi-opaque", b_transparentTelextext );
            b_transparentTelextext = !b_transparentTelextext;
            vlc_object_release( p_vbi );
        }
    }
    emit toggleTelexTransparency();
}

void InputManager::slower()
{
    if( hasInput() )
        var_SetVoid( p_input, "rate-slower" );
}

void InputManager::faster()
{
    if( hasInput() )
        var_SetVoid( p_input, "rate-faster" );
}

void InputManager::normalRate()
{
    if( hasInput() )
        var_SetInteger( p_input, "rate", INPUT_RATE_DEFAULT );
}

void InputManager::setRate( int new_rate )
{
    if( hasInput() )
        var_SetInteger( p_input, "rate", new_rate );
}

/**********************************************************************
 * MainInputManager implementation. Wrap an input manager and
 * take care of updating the main playlist input.
 * Used in the main playlist Dialog
 **********************************************************************/
MainInputManager * MainInputManager::instance = NULL;

MainInputManager::MainInputManager( intf_thread_t *_p_intf )
                 : QObject(NULL), p_intf( _p_intf )
{
    p_input = NULL;
    im = new InputManager( this, p_intf );

//    var_AddCallback( THEPL, "item-change", PLItemChanged, this );
    var_AddCallback( THEPL, "item-change", ItemChanged, im );
    var_AddCallback( THEPL, "playlist-current", PLItemChanged, this );
    var_AddCallback( THEPL, "activity", PLItemChanged, this );

    var_AddCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );

    /* Warn our embedded IM about input changes */
    CONNECT( this, inputChanged( input_thread_t * ),
             im, setInput( input_thread_t * ) );

    /* emit check if playlist has allready started playing */
    vlc_value_t val;
    var_Change( THEPL, "playlist-current", VLC_VAR_CHOICESCOUNT, &val, NULL );
    IMEvent *event = new IMEvent( ItemChanged_Type, val.i_int);
    QApplication::postEvent( this, static_cast<QEvent*>(event) );

}

MainInputManager::~MainInputManager()
{
    if( p_input )
    {
       var_DelCallback( p_input, "state", PLItemChanged, this );
       vlc_object_release( p_input );
       emit inputChanged( NULL );
    }

    var_DelCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );

    var_DelCallback( THEPL, "activity", PLItemChanged, this );
    var_DelCallback( THEPL, "item-change", ItemChanged, im );
//    var_DelCallback( THEPL, "item-change", PLItemChanged, this );

    var_DelCallback( THEPL, "playlist-current", PLItemChanged, this );
}

void MainInputManager::customEvent( QEvent *event )
{
    int type = event->type();
    if ( type != ItemChanged_Type && type != VolumeChanged_Type )
        return;

    // msg_Dbg( p_intf, "New MainIM Event of type: %i", type );
    if( type == VolumeChanged_Type )
    {
        emit volumeChanged();
        return;
    }

    /* Should be PLItemChanged Event */
    if( VLC_OBJECT_INTF == p_intf->i_object_type ) /* FIXME: don't use object type */
    {
        vlc_mutex_lock( &p_intf->change_lock );
        if( p_input && ( p_input->b_dead || !vlc_object_alive (p_input) ) )
        {
            var_DelCallback( p_input, "state", PLItemChanged, this );
            vlc_object_release( p_input );
            emit inputChanged( NULL );
            p_input = NULL;
            vlc_mutex_unlock( &p_intf->change_lock );
            return;
        }

        if( !p_input )
        {
            QPL_LOCK;
            p_input = THEPL->p_input;
            if( p_input && !( !vlc_object_alive (p_input) || p_input->b_dead) )
            {
                vlc_object_yield( p_input );
                var_AddCallback( p_input, "state", PLItemChanged, this );
                emit inputChanged( p_input );
            }
            else
                p_input = NULL;
            QPL_UNLOCK;
        }
        vlc_mutex_unlock( &p_intf->change_lock );
    }
    else
    {
        /* we are working as a dialogs provider */
        playlist_t *p_playlist = pl_Yield( p_intf );
        p_input = playlist_CurrentInput( p_playlist );
        if( p_input )
        {
            emit inputChanged( p_input );
            vlc_object_release( p_input );
        }
        pl_Release( p_intf );
    }
}

/* Playlist Control functions */
void MainInputManager::stop()
{
   playlist_Stop( THEPL );
}

void MainInputManager::next()
{
   playlist_Next( THEPL );
}

void MainInputManager::prev()
{
   playlist_Prev( THEPL );
}

void MainInputManager::togglePlayPause()
{
    if( p_input == NULL )
    {
        playlist_Play( THEPL );
        return;
    }
    getIM()->togglePlayPause();
}

bool MainInputManager::teletextState()
{
    im = getIM();
    if( im->hasInput() )
    {
        const int i_teletext_es = var_GetInteger( getInput(), "teletext-es" );
        const int i_spu_es = var_GetInteger( getInput(), "spu-es" );

        return i_teletext_es >= 0 && i_teletext_es == i_spu_es;
    }
    return false;
}

/* Static callbacks */

/* IM */
static int InterfaceChanged( vlc_object_t *p_this, const char *psz_var,
                           vlc_value_t oldval, vlc_value_t newval, void *param )
{
    /* FIXME remove that static variable */
    static int counter = 0;
    InputManager *im = (InputManager*)param;

    counter = ++counter % 4;
    if(!counter)
        return VLC_SUCCESS;
    IMEvent *event = new IMEvent( PositionUpdate_Type, 0 );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int InterfaceVoutChanged( vlc_object_t *p_this, const char *psz_var,
                                 vlc_value_t oldval, vlc_value_t newval, void *param )
{
    InputManager *im = (InputManager*)param;

    IMEvent *event = new IMEvent( InterfaceVoutUpdate_Type, 0 );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int ItemStateChanged( vlc_object_t *p_this, const char *psz_var,
                           vlc_value_t oldval, vlc_value_t newval, void *param )
{
    InputManager *im = (InputManager*)param;

    IMEvent *event = new IMEvent( ItemStateChanged_Type, 0 );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int ItemRateChanged( vlc_object_t *p_this, const char *psz_var,
                           vlc_value_t oldval, vlc_value_t newval, void *param )
{
    InputManager *im = (InputManager*)param;

    IMEvent *event = new IMEvent( ItemRateChanged_Type, 0 );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int ItemTitleChanged( vlc_object_t *p_this, const char *psz_var,
                           vlc_value_t oldval, vlc_value_t newval, void *param )
{
    InputManager *im = (InputManager*)param;

    IMEvent *event = new IMEvent( ItemTitleChanged_Type, 0 );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int ItemChanged( vlc_object_t *p_this, const char *psz_var,
                        vlc_value_t oldval, vlc_value_t newval, void *param )
{
    InputManager *im = (InputManager*)param;

    IMEvent *event = new IMEvent( ItemChanged_Type, newval.i_int );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int ChangeSPU( vlc_object_t *p_this, const char *var, vlc_value_t o,
                        vlc_value_t n, void *param )
{
    InputManager *im = (InputManager*)param;
    IMEvent *event = new IMEvent( ItemSpuChanged_Type, 0 );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int ChangeTeletext( vlc_object_t *p_this, const char *var, vlc_value_t o,
                           vlc_value_t n, void *param )
{

    InputManager *im = (InputManager*)param;
    IMEvent *event = new IMEvent( ItemTeletextChanged_Type, 0 );
    QApplication::postEvent( im, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

/* MIM */
static int PLItemChanged( vlc_object_t *p_this, const char *psz_var,
                        vlc_value_t oldval, vlc_value_t newval, void *param )
{
    MainInputManager *mim = (MainInputManager*)param;

    IMEvent *event = new IMEvent( ItemChanged_Type, newval.i_int );
    QApplication::postEvent( mim, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}

static int VolumeChanged( vlc_object_t *p_this, const char *psz_var,
                        vlc_value_t oldval, vlc_value_t newval, void *param )
{
    MainInputManager *mim = (MainInputManager*)param;

    IMEvent *event = new IMEvent( VolumeChanged_Type, newval.i_int );
    QApplication::postEvent( mim, static_cast<QEvent*>(event) );
    return VLC_SUCCESS;
}