1 /*****************************************************************************
2 * hierarchical_media_list_view.c: libvlc hierarchical media list view functs.
3 *****************************************************************************
4 * Copyright (C) 2007 the VideoLAN team
7 * Authors: Pierre d'Herbemont <pdherbemont # videolan.org>
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.
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.
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 *****************************************************************************/
24 #include <vlc/libvlc.h>
25 #include <vlc/libvlc_media.h>
26 #include <vlc/libvlc_media_list.h>
27 #include <vlc/libvlc_media_list_view.h>
29 #include "media_list_internal.h"
30 #include "media_list_view_internal.h"
32 //#define DEBUG_HIERARCHICAL_VIEW
34 #ifdef DEBUG_HIERARCHICAL_VIEW
35 # define trace( fmt, ... ) printf( "%s(): " fmt, __FUNCTION__, ##__VA_ARGS__ )
44 /**************************************************************************
45 * flat_media_list_view_count (private)
46 * (called by media_list_view_count)
47 **************************************************************************/
49 hierarch_media_list_view_count( libvlc_media_list_view_t * p_mlv,
50 libvlc_exception_t * p_e )
52 return libvlc_media_list_count( p_mlv->p_mlist, p_e );
55 /**************************************************************************
56 * flat_media_list_view_item_at_index (private)
57 * (called by flat_media_list_view_item_at_index)
58 **************************************************************************/
59 static libvlc_media_t *
60 hierarch_media_list_view_item_at_index( libvlc_media_list_view_t * p_mlv,
62 libvlc_exception_t * p_e )
64 return libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
67 /**************************************************************************
68 * flat_media_list_view_item_at_index (private)
69 * (called by flat_media_list_view_item_at_index)
70 **************************************************************************/
71 static libvlc_media_list_view_t *
72 hierarch_media_list_view_children_at_index( libvlc_media_list_view_t * p_mlv,
74 libvlc_exception_t * p_e )
76 libvlc_media_t * p_md;
77 libvlc_media_list_t * p_submlist;
78 libvlc_media_list_view_t * p_ret;
79 p_md = libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
80 if( !p_md ) return NULL;
81 p_submlist = libvlc_media_subitems( p_md, p_e );
82 libvlc_media_release( p_md );
83 if( !p_submlist ) return NULL;
84 p_ret = libvlc_media_list_hierarchical_view( p_submlist, p_e );
85 libvlc_media_list_release( p_submlist );
90 /**************************************************************************
91 * media_list_(item|will)_* (private) (Event callback)
92 **************************************************************************/
94 media_list_item_added( const libvlc_event_t * p_event, void * user_data )
96 libvlc_media_t * p_md;
97 libvlc_media_list_view_t * p_mlv = user_data;
98 int index = p_event->u.media_list_item_added.index;
99 p_md = p_event->u.media_list_item_added.item;
100 libvlc_media_list_view_item_added( p_mlv, p_md, index );
103 media_list_will_add_item( const libvlc_event_t * p_event, void * user_data )
105 libvlc_media_t * p_md;
106 libvlc_media_list_view_t * p_mlv = user_data;
107 int index = p_event->u.media_list_will_add_item.index;
108 p_md = p_event->u.media_list_will_add_item.item;
109 libvlc_media_list_view_will_add_item( p_mlv, p_md, index );
112 media_list_item_deleted( const libvlc_event_t * p_event, void * user_data )
114 libvlc_media_t * p_md;
115 libvlc_media_list_view_t * p_mlv = user_data;
116 int index = p_event->u.media_list_item_deleted.index;
117 p_md = p_event->u.media_list_item_deleted.item;
118 libvlc_media_list_view_item_deleted( p_mlv, p_md, index );
121 media_list_will_delete_item( const libvlc_event_t * p_event, void * user_data )
123 libvlc_media_t * p_md;
124 libvlc_media_list_view_t * p_mlv = user_data;
125 int index = p_event->u.media_list_will_delete_item.index;
126 p_md = p_event->u.media_list_will_delete_item.item;
127 libvlc_media_list_view_will_delete_item( p_mlv, p_md, index );
131 * Public libvlc functions
135 /**************************************************************************
136 * flat_media_list_view_release (private)
137 * (called by media_list_view_release)
138 **************************************************************************/
140 hierarch_media_list_view_release( libvlc_media_list_view_t * p_mlv )
142 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
143 libvlc_MediaListItemAdded,
144 media_list_item_added, p_mlv, NULL );
145 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
146 libvlc_MediaListWillAddItem,
147 media_list_will_add_item, p_mlv, NULL );
148 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
149 libvlc_MediaListItemDeleted,
150 media_list_item_deleted, p_mlv, NULL );
151 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
152 libvlc_MediaListWillDeleteItem,
153 media_list_will_delete_item, p_mlv, NULL );
156 /**************************************************************************
157 * libvlc_media_list_flat_view (Public)
158 **************************************************************************/
159 libvlc_media_list_view_t *
160 libvlc_media_list_hierarchical_view( libvlc_media_list_t * p_mlist,
161 libvlc_exception_t * p_e )
164 libvlc_media_list_view_t * p_mlv;
165 p_mlv = libvlc_media_list_view_new( p_mlist,
166 hierarch_media_list_view_count,
167 hierarch_media_list_view_item_at_index,
168 hierarch_media_list_view_children_at_index,
169 libvlc_media_list_hierarchical_view,
170 hierarch_media_list_view_release,
173 libvlc_media_list_lock( p_mlist );
174 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
175 libvlc_MediaListItemAdded,
176 media_list_item_added, p_mlv, NULL );
177 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
178 libvlc_MediaListWillAddItem,
179 media_list_will_add_item, p_mlv, NULL );
180 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
181 libvlc_MediaListItemDeleted,
182 media_list_item_deleted, p_mlv, NULL );
183 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
184 libvlc_MediaListWillDeleteItem,
185 media_list_will_delete_item, p_mlv, NULL );
186 libvlc_media_list_unlock( p_mlist );