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

   1 /*****************************************************************************
   2  * item.c : Playlist item creation/deletion/add/removal functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Clément Stenac <zorglub@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24 #include <vlc/vlc.h>
  25 #include <assert.h>
  26 #include <vlc_playlist.h>
  27 #include "playlist_internal.h"
  28
  29 static void AddItem( playlist_t *p_playlist, playlist_item_t *p_item,
  30                      playlist_item_t *p_node, int i_mode, int i_pos );
  31 static void GoAndPreparse( playlist_t *p_playlist, int i_mode,
  32                            playlist_item_t *, playlist_item_t * );
  33 static void ChangeToNode( playlist_t *p_playlist, playlist_item_t *p_item );
  34 static int DeleteInner( playlist_t * p_playlist, playlist_item_t *p_item,
  35                         vlc_bool_t b_stop );
  36
  37 /*****************************************************************************
  38  * An input item has gained a subitem (Event Callback)
  39  *****************************************************************************/
  40 static void input_item_subitem_added( const vlc_event_t * p_event,
  41                                       void * user_data )
  42 {
  43     playlist_item_t *p_parent_playlist_item = user_data;
  44     playlist_t * p_playlist = p_parent_playlist_item->p_playlist;
  45     input_item_t * p_parent, * p_child;
  46     playlist_item_t * p_child_in_category;
  47     playlist_item_t * p_item_in_category;
  48     vlc_bool_t b_play, b_node;
  49
  50     p_parent = p_event->p_obj;
  51     p_child = p_event->u.input_item_subitem_added.p_new_child;
  52     b_node = p_event->u.input_item_subitem_added.b_node;
  53
  54     PL_LOCK;
  55     b_play = var_CreateGetBool( p_playlist, "playlist-autostart" );
  56
  57     /* This part is really hakish, but this playlist system isn't simple */
  58     /* First check if we haven't already added the item as we are
  59      * listening using the onelevel and the category representent
  60      * (Because of the playlist design) */
  61     p_child_in_category = playlist_ItemFindFromInputAndRoot(
  62                             p_playlist, p_child->i_id,
  63                             p_playlist->p_root_category,
  64                             VLC_FALSE /* Only non-node */ );
  65
  66     if( !p_child_in_category )
  67     {
  68         p_item_in_category = playlist_ItemFindFromInputAndRoot(
  69                                 p_playlist, p_parent->i_id,
  70                                 p_playlist->p_root_category,
  71                                 VLC_FALSE /* Only non-node */ );
  72         if( !p_item_in_category )
  73         {
  74             /* Item may have been removed */
  75             PL_UNLOCK;
  76             return;
  77         }
  78
  79         b_play = b_play && p_item_in_category == p_playlist->status.p_item;
  80
  81         /* If you want to use vlc_input_item_subitem_added event,
  82          * you must explicitely create nodes */
  83         assert( p_item_in_category->i_children != -1 );
  84
  85         playlist_BothAddInput( p_playlist, p_child, p_item_in_category,
  86                 PLAYLIST_APPEND | PLAYLIST_SPREPARSE , PLAYLIST_END,
  87                 NULL, NULL,  VLC_TRUE );
  88
  89         if( b_node )
  90         {
  91             playlist_item_t *p_pl_item, *p_new_pl_item;
  92             p_pl_item = playlist_ItemFindFromInputAndRoot( p_playlist,
  93                     p_child->i_id, p_playlist->p_root_category, VLC_FALSE );
  94             p_new_pl_item = playlist_ItemToNode( p_playlist, p_pl_item,
  95                     VLC_TRUE );
  96             p_new_pl_item->p_input->i_type = ITEM_TYPE_NODE;
  97         }
  98
  99         if( b_play )
 100         {
 101             playlist_Control( p_playlist, PLAYLIST_VIEWPLAY,
 102                           VLC_TRUE, p_item_in_category, NULL );
 103         }
 104     }
 105
 106     PL_UNLOCK;
 107
 108 }
 109
 110 /*****************************************************************************
 111  * Listen to vlc_InputItemAddSubItem event
 112  *****************************************************************************/
 113 static void install_input_item_observer( playlist_item_t * p_item )
 114 {
 115     vlc_event_attach( &p_item->p_input->event_manager,
 116                       vlc_InputItemSubItemAdded,
 117                       input_item_subitem_added,
 118                       p_item );
 119 }
 120
 121 static void uninstall_input_item_observer( playlist_item_t * p_item )
 122 {
 123     vlc_event_detach( &p_item->p_input->event_manager,
 124                       vlc_InputItemSubItemAdded,
 125                       input_item_subitem_added,
 126                       p_item );
 127
 128 }
 129
 130 /*****************************************************************************
 131  * Playlist item creation
 132  *****************************************************************************/
 133 playlist_item_t * playlist_ItemNewWithType( vlc_object_t *p_obj,
 134                                             const char *psz_uri,
 135                                             const char *psz_name,
 136                                             int i_options,
 137                                             const char *const *ppsz_options,
 138                                             int i_duration, int i_type )
 139 {
 140     input_item_t *p_input;
 141     if( psz_uri == NULL ) return NULL;
 142     p_input = input_ItemNewWithType( p_obj, psz_uri,
 143                                      psz_name, i_options, ppsz_options,
 144                                      i_duration, i_type );
 145     return playlist_ItemNewFromInput( p_obj, p_input );
 146 }
 147
 148 playlist_item_t *__playlist_ItemNewFromInput( vlc_object_t *p_obj,
 149                                               input_item_t *p_input )
 150 {
 151     DECMALLOC_NULL( p_item, playlist_item_t );
 152     playlist_t *p_playlist = pl_Yield( p_obj );
 153
 154     p_item->p_input = p_input;
 155     vlc_gc_incref( p_item->p_input );
 156
 157     p_item->i_id = ++p_playlist->i_last_playlist_id;
 158
 159     p_item->p_parent = NULL;
 160     p_item->i_children = -1;
 161     p_item->pp_children = NULL;
 162     p_item->i_flags = 0;
 163     p_item->p_playlist = p_playlist;
 164
 165     install_input_item_observer( p_item );
 166
 167     pl_Release( p_item->p_playlist );
 168
 169     return p_item;
 170 }
 171
 172 /***************************************************************************
 173  * Playlist item destruction
 174  ***************************************************************************/
 175
 176 /** Delete a playlist item and detach its input item */
 177 int playlist_ItemDelete( playlist_item_t *p_item )
 178 {
 179     uninstall_input_item_observer( p_item );
 180
 181     vlc_gc_decref( p_item->p_input );
 182     free( p_item );
 183     return VLC_SUCCESS;
 184 }
 185
 186 /** Remove an input item when it appears from a root playlist item */
 187 static int DeleteFromInput( playlist_t *p_playlist, int i_input_id,
 188                             playlist_item_t *p_root, vlc_bool_t b_do_stop )
 189 {
 190     int i;
 191     for( i = 0 ; i< p_root->i_children ; i++ )
 192     {
 193         if( p_root->pp_children[i]->i_children == -1 &&
 194             p_root->pp_children[i]->p_input->i_id == i_input_id )
 195         {
 196             DeleteInner( p_playlist, p_root->pp_children[i], b_do_stop );
 197             return VLC_SUCCESS;
 198         }
 199         else if( p_root->pp_children[i]->i_children >= 0 )
 200         {
 201             int i_ret = DeleteFromInput( p_playlist, i_input_id,
 202                                          p_root->pp_children[i], b_do_stop );
 203             if( i_ret == VLC_SUCCESS ) return VLC_SUCCESS;
 204         }
 205     }
 206     return VLC_EGENERIC;
 207 }
 208
 209 /** Remove an input item when it appears from a root playlist item */
 210 int playlist_DeleteInputInParent( playlist_t *p_playlist, int i_input_id,
 211                                   playlist_item_t *p_root, vlc_bool_t b_locked )
 212 {
 213     int i_ret;
 214     if( !b_locked ) PL_LOCK;
 215     i_ret = DeleteFromInput( p_playlist, i_input_id,
 216                              p_root, VLC_TRUE );
 217     if( !b_locked ) PL_UNLOCK;
 218     return i_ret;
 219 }
 220
 221 /** Remove an input item from ONELEVEL and CATEGORY */
 222 int playlist_DeleteFromInput( playlist_t *p_playlist, int i_input_id,
 223                               vlc_bool_t b_locked )
 224 {
 225     int i_ret1, i_ret2;
 226     if( !b_locked ) PL_LOCK;
 227     i_ret1 = DeleteFromInput( p_playlist, i_input_id,
 228                              p_playlist->p_root_category, VLC_TRUE );
 229     i_ret2 = DeleteFromInput( p_playlist, i_input_id,
 230                      p_playlist->p_root_onelevel, VLC_TRUE );
 231     if( !b_locked ) PL_UNLOCK;
 232     return ( i_ret1 == VLC_SUCCESS || i_ret2 == VLC_SUCCESS ) ?
 233                             VLC_SUCCESS : VLC_ENOITEM;
 234 }
 235
 236 void playlist_Clear( playlist_t * p_playlist, vlc_bool_t b_locked )
 237 {
 238     if( !b_locked ) PL_LOCK;
 239     playlist_NodeEmpty( p_playlist, p_playlist->p_local_category, VLC_TRUE );
 240     playlist_NodeEmpty( p_playlist, p_playlist->p_local_onelevel, VLC_TRUE );
 241     if( !b_locked ) PL_UNLOCK;
 242 }
 243
 244 /** Remove a playlist item from the playlist, given its id
 245  * This function is to be used only by the playlist */
 246 int playlist_DeleteFromItemId( playlist_t *p_playlist, int i_id )
 247 {
 248     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id,
 249                                                     VLC_TRUE );
 250     if( !p_item ) return VLC_EGENERIC;
 251     return DeleteInner( p_playlist, p_item, VLC_TRUE );
 252 }
 253
 254 /***************************************************************************
 255  * Playlist item addition
 256  ***************************************************************************/
 257 /** Add an item to the playlist or the media library
 258  * \param p_playlist the playlist to add into
 259  * \param psz_uri the mrl to add to the playlist
 260  * \param psz_name a text giving a name or description of this item
 261  * \param i_mode the mode used when adding
 262  * \param i_pos the position in the playlist where to add. If this is
 263  *        PLAYLIST_END the item will be added at the end of the playlist
 264  *        regardless of its size
 265  * \param b_playlist TRUE for playlist, FALSE for media library
 266  * \return The id of the playlist item
 267  */
 268 int playlist_Add( playlist_t *p_playlist, const char *psz_uri,
 269                   const char *psz_name, int i_mode, int i_pos,
 270                   vlc_bool_t b_playlist, vlc_bool_t b_locked )
 271 {
 272     return playlist_AddExt( p_playlist, psz_uri, psz_name,
 273                             i_mode, i_pos, -1, NULL, 0, b_playlist, b_locked );
 274 }
 275
 276 /**
 277  * Add a MRL into the playlist or the media library, duration and options given
 278  *
 279  * \param p_playlist the playlist to add into
 280  * \param psz_uri the mrl to add to the playlist
 281  * \param psz_name a text giving a name or description of this item
 282  * \param i_mode the mode used when adding
 283  * \param i_pos the position in the playlist where to add. If this is
 284  *        PLAYLIST_END the item will be added at the end of the playlist
 285  *        regardless of its size
 286  * \param i_duration length of the item in milliseconds.
 287  * \param ppsz_options an array of options
 288  * \param i_options the number of options
 289  * \param b_playlist TRUE for playlist, FALSE for media library
 290  * \return The id of the playlist item
 291 */
 292 int playlist_AddExt( playlist_t *p_playlist, const char * psz_uri,
 293                      const char *psz_name, int i_mode, int i_pos,
 294                      mtime_t i_duration, const char *const *ppsz_options,
 295                      int i_options, vlc_bool_t b_playlist, vlc_bool_t b_locked )
 296 {
 297     int i_ret;
 298     input_item_t *p_input = input_ItemNewExt( p_playlist, psz_uri, psz_name,
 299                                               i_options, ppsz_options,
 300                                               i_duration );
 301
 302     i_ret = playlist_AddInput( p_playlist, p_input, i_mode, i_pos, b_playlist,
 303                                b_locked );
 304     int i_id = i_ret == VLC_SUCCESS ? p_input->i_id : -1;
 305
 306     vlc_gc_decref( p_input );
 307
 308     return i_id;
 309 }
 310
 311 /** Add an input item to the playlist node */
 312 int playlist_AddInput( playlist_t* p_playlist, input_item_t *p_input,
 313                        int i_mode, int i_pos, vlc_bool_t b_playlist,
 314                        vlc_bool_t b_locked )
 315 {
 316     playlist_item_t *p_item_cat, *p_item_one;
 317
 318     if( !p_playlist->b_doing_ml )
 319         PL_DEBUG( "adding item `%s' ( %s )", p_input->psz_name,
 320                                              p_input->psz_uri );
 321
 322     if( !b_locked ) PL_LOCK;
 323
 324     /* Add to ONELEVEL */
 325     p_item_one = playlist_ItemNewFromInput( p_playlist, p_input );
 326     if( p_item_one == NULL ) return VLC_ENOMEM;
 327     AddItem( p_playlist, p_item_one,
 328              b_playlist ? p_playlist->p_local_onelevel :
 329                           p_playlist->p_ml_onelevel , i_mode, i_pos );
 330
 331     /* Add to CATEGORY */
 332     p_item_cat = playlist_ItemNewFromInput( p_playlist, p_input );
 333     if( p_item_cat == NULL ) return VLC_ENOMEM;
 334     AddItem( p_playlist, p_item_cat,
 335              b_playlist ? p_playlist->p_local_category :
 336                           p_playlist->p_ml_category , i_mode, i_pos );
 337
 338     GoAndPreparse( p_playlist, i_mode, p_item_cat, p_item_one );
 339
 340     if( !b_locked ) PL_UNLOCK;
 341     return VLC_SUCCESS;
 342 }
 343
 344 /** Add an input item to p_direct_parent in the category tree, and to the
 345  *  matching top category in onelevel **/
 346 int playlist_BothAddInput( playlist_t *p_playlist,
 347                            input_item_t *p_input,
 348                            playlist_item_t *p_direct_parent,
 349                            int i_mode, int i_pos,
 350                            int *i_cat, int *i_one, vlc_bool_t b_locked )
 351 {
 352     playlist_item_t *p_item_cat, *p_item_one, *p_up;
 353     int i_top;
 354     assert( p_input );
 355     if( !b_locked ) PL_LOCK;
 356
 357     /* Add to category */
 358     p_item_cat = playlist_ItemNewFromInput( p_playlist, p_input );
 359     if( p_item_cat == NULL ) return VLC_ENOMEM;
 360     AddItem( p_playlist, p_item_cat, p_direct_parent, i_mode, i_pos );
 361
 362     /* Add to onelevel */
 363     /** \todo make a faster case for ml import */
 364     p_item_one = playlist_ItemNewFromInput( p_playlist, p_input );
 365     if( p_item_one == NULL ) return VLC_ENOMEM;
 366
 367     p_up = p_direct_parent;
 368     while( p_up->p_parent != p_playlist->p_root_category )
 369     {
 370         p_up = p_up->p_parent;
 371     }
 372     for( i_top = 0 ; i_top < p_playlist->p_root_onelevel->i_children; i_top++ )
 373     {
 374         if( p_playlist->p_root_onelevel->pp_children[i_top]->p_input->i_id ==
 375                              p_up->p_input->i_id )
 376         {
 377             AddItem( p_playlist, p_item_one,
 378                      p_playlist->p_root_onelevel->pp_children[i_top],
 379                      i_mode, i_pos );
 380             break;
 381         }
 382     }
 383     GoAndPreparse( p_playlist, i_mode, p_item_cat, p_item_one );
 384
 385     if( i_cat ) *i_cat = p_item_cat->i_id;
 386     if( i_one ) *i_one = p_item_one->i_id;
 387
 388     if( !b_locked ) PL_UNLOCK;
 389     return VLC_SUCCESS;
 390 }
 391
 392 /** Add an input item to a given node */
 393 playlist_item_t * playlist_NodeAddInput( playlist_t *p_playlist,
 394                                          input_item_t *p_input,
 395                                          playlist_item_t *p_parent,
 396                                          int i_mode, int i_pos,
 397                                          vlc_bool_t b_locked )
 398 {
 399     playlist_item_t *p_item;
 400     assert( p_input );
 401     assert( p_parent && p_parent->i_children != -1 );
 402
 403     if( !b_locked ) PL_LOCK;
 404
 405     p_item = playlist_ItemNewFromInput( p_playlist, p_input );
 406     if( p_item == NULL ) return NULL;
 407     AddItem( p_playlist, p_item, p_parent, i_mode, i_pos );
 408
 409     if( !b_locked ) PL_UNLOCK;
 410
 411     return p_item;
 412 }
 413
 414 /*****************************************************************************
 415  * Playlist item misc operations
 416  *****************************************************************************/
 417
 418 /**
 419  * Transform an item to a node. Return the node in the category tree, or NULL
 420  * if not found there
 421  */
 422 playlist_item_t *playlist_ItemToNode( playlist_t *p_playlist,
 423                                       playlist_item_t *p_item,
 424                                       vlc_bool_t b_locked )
 425 {
 426
 427     playlist_item_t *p_item_in_category;
 428     /* What we do
 429      * Find the input in CATEGORY.
 430      *  - If we find it
 431      *    - change it to node
 432      *    - we'll return it at the end
 433      *    - If we are a direct child of onelevel root, change to node, else
 434      *      delete the input from ONELEVEL
 435      *  - If we don't find it, just change to node (we are probably in VLM)
 436      *    and return NULL
 437      *
 438      * If we were in ONELEVEL, we thus retrieve the node in CATEGORY (will be
 439      * useful for later BothAddInput )
 440      */
 441
 442     if( !b_locked ) PL_LOCK;
 443
 444     /* Fast track the media library, no time to loose */
 445     if( p_item == p_playlist->p_ml_category ) {
 446         if( !b_locked ) PL_UNLOCK;
 447         return p_item;
 448     }
 449
 450     /** \todo First look if we don't already have it */
 451     p_item_in_category = playlist_ItemFindFromInputAndRoot(
 452                                             p_playlist, p_item->p_input->i_id,
 453                                             p_playlist->p_root_category,
 454                                             VLC_TRUE );
 455
 456     if( p_item_in_category )
 457     {
 458         playlist_item_t *p_item_in_one = playlist_ItemFindFromInputAndRoot(
 459                                             p_playlist, p_item->p_input->i_id,
 460                                             p_playlist->p_root_onelevel,
 461                                             VLC_TRUE );
 462         assert( p_item_in_one );
 463
 464         /* We already have it, and there is nothing more to do */
 465         ChangeToNode( p_playlist, p_item_in_category );
 466
 467         /* Item in one is a root, change it to node */
 468         if( p_item_in_one->p_parent == p_playlist->p_root_onelevel )
 469             ChangeToNode( p_playlist, p_item_in_one );
 470         else
 471         {
 472             DeleteFromInput( p_playlist, p_item_in_one->p_input->i_id,
 473                              p_playlist->p_root_onelevel, VLC_FALSE );
 474         }
 475         p_playlist->b_reset_currently_playing = VLC_TRUE;
 476         vlc_cond_signal( &p_playlist->object_wait );
 477         var_SetInteger( p_playlist, "item-change", p_item_in_category->
 478                                                         p_input->i_id );
 479         if( !b_locked ) PL_UNLOCK;
 480         return p_item_in_category;
 481     }
 482     else
 483     {
 484         ChangeToNode( p_playlist, p_item );
 485         if( !b_locked ) PL_UNLOCK;
 486         return NULL;
 487     }
 488 }
 489
 490 /** Find an item within a root, given its input id.
 491  * \return the first found item, or NULL if not found
 492  */
 493 playlist_item_t *playlist_ItemFindFromInputAndRoot( playlist_t *p_playlist,
 494                                                     int i_input_id,
 495                                                     playlist_item_t *p_root,
 496                                                     vlc_bool_t b_items_only )
 497 {
 498     int i;
 499     for( i = 0 ; i< p_root->i_children ; i++ )
 500     {
 501         if( ( b_items_only ? p_root->pp_children[i]->i_children == -1 : 1 ) &&
 502             p_root->pp_children[i]->p_input->i_id == i_input_id )
 503         {
 504             return p_root->pp_children[i];
 505         }
 506         else if( p_root->pp_children[i]->i_children >= 0 )
 507         {
 508             playlist_item_t *p_search =
 509                  playlist_ItemFindFromInputAndRoot( p_playlist, i_input_id,
 510                                                     p_root->pp_children[i],
 511                                                     b_items_only );
 512             if( p_search ) return p_search;
 513         }
 514     }
 515     return NULL;
 516 }
 517
 518
 519 static int TreeMove( playlist_t *p_playlist, playlist_item_t *p_item,
 520                      playlist_item_t *p_node, int i_newpos )
 521 {
 522     int j;
 523     playlist_item_t *p_detach = p_item->p_parent;
 524     (void)p_playlist;
 525
 526     if( p_node->i_children == -1 ) return VLC_EGENERIC;
 527
 528     for( j = 0; j < p_detach->i_children; j++ )
 529     {
 530          if( p_detach->pp_children[j] == p_item ) break;
 531     }
 532     REMOVE_ELEM( p_detach->pp_children, p_detach->i_children, j );
 533
 534     /* Attach to new parent */
 535     INSERT_ELEM( p_node->pp_children, p_node->i_children, i_newpos, p_item );
 536     p_item->p_parent = p_node;
 537
 538     return VLC_SUCCESS;
 539 }
 540
 541 /**
 542  * Moves an item
 543  *
 544  * This function must be entered with the playlist lock
 545  *
 546  * \param p_playlist the playlist
 547  * \param p_item the item to move
 548  * \param p_node the new parent of the item
 549  * \param i_newpos the new position under this new parent
 550  * \return VLC_SUCCESS or an error
 551  */
 552 int playlist_TreeMove( playlist_t * p_playlist, playlist_item_t *p_item,
 553                        playlist_item_t *p_node, int i_newpos )
 554 {
 555     int i_ret;
 556     /* Drop on a top level node. Move in the two trees */
 557     if( p_node->p_parent == p_playlist->p_root_category ||
 558         p_node->p_parent == p_playlist->p_root_onelevel )
 559     {
 560         /* Fixme: avoid useless lookups but we need some clean helpers */
 561         {
 562             /* Fixme: if we try to move a node on a top-level node, it will
 563              * fail because the node doesn't exist in onelevel and we will
 564              * do some shit in onelevel. We should recursively move all items
 565              * within the node */
 566             playlist_item_t *p_node_onelevel;
 567             playlist_item_t *p_item_onelevel;
 568             p_node_onelevel = playlist_ItemFindFromInputAndRoot( p_playlist,
 569                                                 p_node->p_input->i_id,
 570                                                 p_playlist->p_root_onelevel,
 571                                                 VLC_FALSE );
 572             p_item_onelevel = playlist_ItemFindFromInputAndRoot( p_playlist,
 573                                                 p_item->p_input->i_id,
 574                                                 p_playlist->p_root_onelevel,
 575                                                 VLC_FALSE );
 576             if( p_node_onelevel && p_item_onelevel )
 577                 TreeMove( p_playlist, p_item_onelevel, p_node_onelevel, 0 );
 578         }
 579         {
 580             playlist_item_t *p_node_category;
 581             playlist_item_t *p_item_category;
 582             p_node_category = playlist_ItemFindFromInputAndRoot( p_playlist,
 583                                                 p_node->p_input->i_id,
 584                                                 p_playlist->p_root_category,
 585                                                 VLC_FALSE );
 586             p_item_category = playlist_ItemFindFromInputAndRoot( p_playlist,
 587                                                 p_item->p_input->i_id,
 588                                                 p_playlist->p_root_category,
 589                                                 VLC_FALSE );
 590             if( p_node_category && p_item_category )
 591                 TreeMove( p_playlist, p_item_category, p_node_category, 0 );
 592         }
 593         i_ret = VLC_SUCCESS;
 594     }
 595     else
 596         i_ret = TreeMove( p_playlist, p_item, p_node, i_newpos );
 597     p_playlist->b_reset_currently_playing = VLC_TRUE;
 598     vlc_cond_signal( &p_playlist->object_wait );
 599     return i_ret;
 600 }
 601
 602 /** Send a notification that an item has been added to a node */
 603 void playlist_SendAddNotify( playlist_t *p_playlist, int i_item_id,
 604                              int i_node_id, vlc_bool_t b_signal )
 605 {
 606     vlc_value_t val;
 607     playlist_add_t *p_add = (playlist_add_t *)malloc(sizeof( playlist_add_t));
 608     p_add->i_item = i_item_id;
 609     p_add->i_node = i_node_id;
 610     val.p_address = p_add;
 611     p_playlist->b_reset_currently_playing = VLC_TRUE;
 612     if( b_signal )
 613         vlc_cond_signal( &p_playlist->object_wait );
 614     var_Set( p_playlist, "item-append", val );
 615     free( p_add );
 616 }
 617
 618 /*****************************************************************************
 619  * Playlist item accessors
 620  *****************************************************************************/
 621
 622 /** Set the name of a playlist item */
 623 int playlist_ItemSetName( playlist_item_t *p_item, const char *psz_name )
 624 {
 625     if( psz_name && p_item )
 626     {
 627         input_item_SetName( p_item->p_input, psz_name );
 628         return VLC_SUCCESS;
 629     }
 630     return VLC_EGENERIC;
 631 }
 632
 633 /***************************************************************************
 634  * The following functions are local
 635  ***************************************************************************/
 636
 637 /* Enqueue an item for preparsing, and play it, if needed */
 638 static void GoAndPreparse( playlist_t *p_playlist, int i_mode,
 639                            playlist_item_t *p_item_cat,
 640                            playlist_item_t *p_item_one )
 641 {
 642     if( (i_mode & PLAYLIST_GO ) )
 643     {
 644         playlist_item_t *p_parent = p_item_one;
 645         playlist_item_t *p_toplay = NULL;
 646         while( p_parent )
 647         {
 648             if( p_parent == p_playlist->p_root_category )
 649             {
 650                 p_toplay = p_item_cat; break;
 651             }
 652             else if( p_parent == p_playlist->p_root_onelevel )
 653             {
 654                 p_toplay = p_item_one; break;
 655             }
 656             p_parent = p_parent->p_parent;
 657         }
 658         assert( p_toplay );
 659         p_playlist->request.b_request = VLC_TRUE;
 660         p_playlist->request.i_skip = 0;
 661         p_playlist->request.p_item = p_toplay;
 662         if( p_playlist->p_input )
 663             input_StopThread( p_playlist->p_input );
 664         p_playlist->request.i_status = PLAYLIST_RUNNING;
 665         vlc_cond_signal( &p_playlist->object_wait );
 666     }
 667     /* Preparse if PREPARSE or SPREPARSE & not enough meta */
 668     char *psz_artist = input_item_GetArtist( p_item_cat->p_input );
 669     char *psz_album = input_item_GetAlbum( p_item_cat->p_input );
 670     if( p_playlist->b_auto_preparse &&
 671           (i_mode & PLAYLIST_PREPARSE ||
 672           ( i_mode & PLAYLIST_SPREPARSE &&
 673             ( EMPTY_STR( psz_artist ) || ( EMPTY_STR( psz_album ) ) )
 674           ) ) )
 675         playlist_PreparseEnqueue( p_playlist, p_item_cat->p_input );
 676     /* If we already have it, signal it */
 677     else if( !EMPTY_STR( psz_artist ) && !EMPTY_STR( psz_album ) )
 678         input_item_SetPreparsed( p_item_cat->p_input, VLC_TRUE );
 679     free( psz_artist );
 680     free( psz_album );
 681 }
 682
 683 /* Add the playlist item to the requested node and fire a notification */
 684 static void AddItem( playlist_t *p_playlist, playlist_item_t *p_item,
 685                      playlist_item_t *p_node, int i_mode, int i_pos )
 686 {
 687     ARRAY_APPEND(p_playlist->items, p_item);
 688     ARRAY_APPEND(p_playlist->all_items, p_item);
 689     p_playlist->i_enabled ++;
 690
 691     if( i_pos == PLAYLIST_END )
 692         playlist_NodeAppend( p_playlist, p_item, p_node );
 693     else
 694         playlist_NodeInsert( p_playlist, p_item, p_node, i_pos );
 695
 696     if( !p_playlist->b_doing_ml )
 697         playlist_SendAddNotify( p_playlist, p_item->i_id, p_node->i_id,
 698                                  !( i_mode & PLAYLIST_NO_REBUILD ) );
 699 }
 700
 701 /* Actually convert an item to a node */
 702 static void ChangeToNode( playlist_t *p_playlist, playlist_item_t *p_item )
 703 {
 704     int i;
 705     if( p_item->i_children == -1 )
 706         p_item->i_children = 0;
 707
 708     /* Remove it from the array of available items */
 709     ARRAY_BSEARCH( p_playlist->items,->i_id, int, p_item->i_id, i );
 710     if( i != -1 )
 711         ARRAY_REMOVE( p_playlist->items, i );
 712 }
 713
 714 /* Do the actual removal */
 715 static int DeleteInner( playlist_t * p_playlist, playlist_item_t *p_item,
 716                         vlc_bool_t b_stop )
 717 {
 718     int i;
 719     int i_id = p_item->i_id;
 720     vlc_bool_t b_delay_deletion = VLC_FALSE;
 721
 722     if( p_item->i_children > -1 )
 723     {
 724         return playlist_NodeDelete( p_playlist, p_item, VLC_TRUE, VLC_FALSE );
 725     }
 726     p_playlist->b_reset_currently_playing = VLC_TRUE;
 727     var_SetInteger( p_playlist, "item-deleted", i_id );
 728
 729     /* Remove the item from the bank */
 730     ARRAY_BSEARCH( p_playlist->all_items,->i_id, int, i_id, i );
 731     if( i != -1 )
 732         ARRAY_REMOVE( p_playlist->all_items, i );
 733
 734     /* Check if it is the current item */
 735     if( p_playlist->status.p_item == p_item )
 736     {
 737         /* Hack we don't call playlist_Control for lock reasons */
 738         if( b_stop )
 739         {
 740             p_playlist->request.i_status = PLAYLIST_STOPPED;
 741             p_playlist->request.b_request = VLC_TRUE;
 742             p_playlist->request.p_item = NULL;
 743             msg_Info( p_playlist, "stopping playback" );
 744             vlc_cond_signal( &p_playlist->object_wait );
 745         }
 746         b_delay_deletion = VLC_TRUE;
 747     }
 748
 749     PL_DEBUG( "deleting item `%s'", p_item->p_input->psz_name );
 750
 751     /* Remove the item from its parent */
 752     playlist_NodeRemoveItem( p_playlist, p_item, p_item->p_parent );
 753
 754     if( !b_delay_deletion )
 755         playlist_ItemDelete( p_item );
 756     else
 757     {
 758         PL_DEBUG( "marking %s for further deletion", PLI_NAME( p_item ) );
 759         p_item->i_flags |= PLAYLIST_REMOVE_FLAG;
 760     }
 761
 762     return VLC_SUCCESS;
 763 }