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_playlist.h"
  25 #include "playlist_internal.h"
  26
  27 /***************************************************************************
  28  * Item search functions
  29  ***************************************************************************/
  30
  31 /**
  32  * Search a playlist item by its playlist_item id
  33  *
  34  * \param p_playlist the playlist
  35  * \param i_id the id to find
  36  * \return the item or NULL on failure
  37  */
  38 playlist_item_t * playlist_ItemGetById( playlist_t * p_playlist , int i_id,
  39                                         vlc_bool_t b_locked )
  40 {
  41     int i;
  42     if( !b_locked ) PL_LOCK;
  43     ARRAY_BSEARCH( p_playlist->all_items,->i_id, int, i_id, i );
  44     if( i != -1 ) {
  45         if( !b_locked ) PL_UNLOCK;
  46         return ARRAY_VAL( p_playlist->all_items, i );
  47     }
  48     if( !b_locked ) PL_UNLOCK;
  49     return NULL;
  50 }
  51
  52 /**
  53  * Search an item by its input_item_t
  54  *
  55  * \param p_playlist the playlist
  56  * \param p_item the input_item_t to find
  57  * \return the item, or NULL on failure
  58  */
  59 playlist_item_t * playlist_ItemGetByInput( playlist_t * p_playlist ,
  60                                            input_item_t *p_item,
  61                                            vlc_bool_t b_locked )
  62 {
  63     int i;
  64     if( !b_locked ) PL_LOCK;
  65     if( p_playlist->status.p_item &&
  66         p_playlist->status.p_item->p_input == p_item )
  67     {
  68         if( !b_locked ) PL_UNLOCK;
  69         return p_playlist->status.p_item;
  70     }
  71     /** \todo Check if this is always incremental and whether we can bsearch */
  72     for( i =  0 ; i < p_playlist->all_items.i_size; i++ )
  73     {
  74         if( ARRAY_VAL(p_playlist->all_items, i)->p_input->i_id == p_item->i_id )
  75         {
  76             if( !b_locked ) PL_UNLOCK;
  77             return ARRAY_VAL(p_playlist->all_items, i);
  78         }
  79     }
  80     if( !b_locked ) PL_UNLOCK;
  81     return NULL;
  82 }
  83
  84 /** Find the playlist item matching the input id under the given node */
  85 playlist_item_t * playlist_ItemGetByInputId( playlist_t *p_playlist,
  86                                              int i_input_id,
  87                                              playlist_item_t *p_root )
  88 {
  89     int i;
  90     assert( p_root != NULL );
  91     for( i = 0 ; i< p_root->i_children ; i++ )
  92     {
  93         if( p_root->pp_children[i]->i_children == -1 &&
  94             p_root->pp_children[i]->p_input->i_id == i_input_id )
  95         {
  96             return p_root->pp_children[i];
  97         }
  98         else if( p_root->pp_children[i]->i_children >= 0 )
  99         {
 100             return playlist_ItemGetByInputId( p_playlist, i_input_id,
 101                                               p_root->pp_children[i] );
 102         }
 103     }
 104     return NULL;
 105 }
 106
 107 /***************************************************************************
 108  * Live search handling
 109  ***************************************************************************/
 110
 111 int playlist_LiveSearchUpdate( playlist_t *p_playlist, playlist_item_t *p_root,
 112                                const char *psz_string )
 113 {
 114    int i;
 115    p_playlist->b_reset_currently_playing = VLC_TRUE;
 116    for( i = 0 ; i< p_root->i_children ; i ++ )
 117    {
 118         playlist_item_t *p_item = p_root->pp_children[i];
 119         if( p_item->i_children > -1 )
 120         {
 121             playlist_LiveSearchUpdate( p_playlist, p_item, psz_string );
 122         }
 123         else
 124         {
 125             char *psz_name_matches, *psz_artist_matches, *psz_album_matches;
 126             char *psz_field, *psz_field_case;
 127
 128             psz_field = input_item_GetName( p_i );
 129             psz_name_matches = strcasestr( psz_field, psz_string );
 130             free( psz_field );
 131
 132             psz_field = input_item_GetMeta( p_item->p_input, vlc_meta_Artist );
 133             psz_field_case = strcasestr( input_item_GetMeta( p_item->p_input, vlc_meta_Artist ), psz_string );
 134             psz_artist_matches = ( psz_field && psz_field_case );
 135             free( psz_field );
 136             free( psz_field_case );
 137
 138
 139             psz_field = input_item_GetMeta( p_item->p_input, vlc_meta_Album );
 140             psz_field_case = strcasestr( input_item_GetMeta( p_item->p_input, vlc_meta_Album ), psz_string );
 141             psz_album_matches = ( psz_field && psz_field_case );
 142             free( psz_field );
 143             free( psz_field_case );
 144
 145             if( psz_name_matches || psz_artist_matches || psz_album_matches )
 146                 p_item->i_flags &= ~PLAYLIST_DBL_FLAG;
 147             else
 148                 p_item->i_flags |= PLAYLIST_DBL_FLAG;
 149         }
 150    }
 151    vlc_cond_signal( &p_playlist->object_wait );
 152    return VLC_SUCCESS;
 153 }