git.sesse.net Git - vlc/blob - src/playlist/search.c

   1 /*****************************************************************************
   2  * search.c : Search functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23 #include <vlc/vlc.h>
  24 #include <vlc/input.h>
  25 #include "vlc_playlist.h"
  26 #include "playlist_internal.h"
  27
  28 /***************************************************************************
  29  * Item search functions
  30  ***************************************************************************/
  31
  32 /**
  33  * Search a playlist item by its playlist_item id
  34  *
  35  * \param p_playlist the playlist
  36  * \param i_id the id to find
  37  * \return the item or NULL on failure
  38  */
  39 playlist_item_t * playlist_ItemGetById( playlist_t * p_playlist , int i_id,
  40                                         vlc_bool_t b_locked )
  41 {
  42     int i;
  43     if( !b_locked ) PL_LOCK;
  44     ARRAY_BSEARCH( p_playlist->all_items,->i_id, int, i_id, i );
  45     if( i != -1 ) {
  46         if( !b_locked ) PL_UNLOCK;
  47         return ARRAY_VAL( p_playlist->all_items, i );
  48     }
  49     if( !b_locked ) PL_UNLOCK;
  50     return NULL;
  51 }
  52
  53 /**
  54  * Search an item by its input_item_t
  55  *
  56  * \param p_playlist the playlist
  57  * \param p_item the input_item_t to find
  58  * \return the item, or NULL on failure
  59  */
  60 playlist_item_t * playlist_ItemGetByInput( playlist_t * p_playlist ,
  61                                            input_item_t *p_item,
  62                                            vlc_bool_t b_locked )
  63 {
  64     int i;
  65     if( !b_locked ) PL_LOCK;
  66     if( p_playlist->status.p_item &&
  67         p_playlist->status.p_item->p_input == p_item )
  68     {
  69         if( !b_locked ) PL_UNLOCK;
  70         return p_playlist->status.p_item;
  71     }
  72     /** \todo Check if this is always incremental and whether we can bsearch */
  73     for( i =  0 ; i < p_playlist->all_items.i_size; i++ )
  74     {
  75         if( ARRAY_VAL(p_playlist->all_items, i)->p_input->i_id == p_item->i_id )
  76         {
  77             if( !b_locked ) PL_UNLOCK;
  78             return ARRAY_VAL(p_playlist->all_items, i);
  79         }
  80     }
  81     if( !b_locked ) PL_UNLOCK;
  82     return NULL;
  83 }
  84
  85 /***************************************************************************
  86  * Live search handling
  87  ***************************************************************************/
  88
  89 int playlist_LiveSearchUpdate( playlist_t *p_playlist, playlist_item_t *p_root,
  90                                const char *psz_string )
  91 {
  92    int i;
  93    p_playlist->b_reset_currently_playing = VLC_TRUE;
  94    for( i = 0 ; i< p_root->i_children ; i ++ )
  95    {
  96         playlist_item_t *p_item = p_root->pp_children[i];
  97         if( p_item->i_children > -1 )
  98         {
  99             playlist_LiveSearchUpdate( p_playlist, p_item, psz_string );
 100         }
 101 #define META_MATCHES( field ) ( p_item->p_input->p_meta && \
 102                                 p_item->p_input->p_meta->psz_##field && \
 103                                 strcasestr( p_item->p_input->p_meta->psz_##field, psz_string ) )
 104         if( strcasestr( p_item->p_input->psz_name, psz_string ) ||
 105             META_MATCHES( artist ) || META_MATCHES( album ) )
 106             p_item->i_flags &= ~PLAYLIST_DBL_FLAG;
 107         else
 108             p_item->i_flags |= PLAYLIST_DBL_FLAG;
 109    }
 110    vlc_cond_signal( &p_playlist->object_wait );
 111    return VLC_SUCCESS;
 112 }