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 "libvlc_internal.h"
25 #include <vlc/libvlc.h>
27 #include "vlc_arrays.h"
29 //#define DEBUG_HIERARCHICAL_VIEW
31 #ifdef DEBUG_HIERARCHICAL_VIEW
32 # define trace( fmt, ... ) printf( "%s(): " fmt, __FUNCTION__, ##__VA_ARGS__ )
37 struct libvlc_media_list_view_private_t
46 /**************************************************************************
47 * flat_media_list_view_count (private)
48 * (called by media_list_view_count)
49 **************************************************************************/
51 hierarch_media_list_view_count( libvlc_media_list_view_t * p_mlv,
52 libvlc_exception_t * p_e )
54 return libvlc_media_list_count( p_mlv->p_mlist, p_e );
57 /**************************************************************************
58 * flat_media_list_view_item_at_index (private)
59 * (called by flat_media_list_view_item_at_index)
60 **************************************************************************/
61 static libvlc_media_descriptor_t *
62 hierarch_media_list_view_item_at_index( libvlc_media_list_view_t * p_mlv,
64 libvlc_exception_t * p_e )
66 return libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
69 /**************************************************************************
70 * flat_media_list_view_item_at_index (private)
71 * (called by flat_media_list_view_item_at_index)
72 **************************************************************************/
73 static libvlc_media_list_view_t *
74 hierarch_media_list_view_children_at_index( libvlc_media_list_view_t * p_mlv,
76 libvlc_exception_t * p_e )
78 libvlc_media_descriptor_t * p_md;
79 libvlc_media_list_t * p_submlist;
80 p_md = libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
81 if( !p_md ) return NULL;
82 p_submlist = libvlc_media_descriptor_subitems( p_md, p_e );
83 if( !p_submlist ) return NULL;
84 return libvlc_media_list_hierarchical_view( p_submlist, p_e );
87 /**************************************************************************
88 * media_list_(item|will)_* (private) (Event callback)
89 **************************************************************************/
91 media_list_item_added( const libvlc_event_t * p_event, void * user_data )
93 libvlc_media_descriptor_t * p_md;
94 libvlc_media_list_view_t * p_mlv = user_data;
95 int index = p_event->u.media_list_item_added.index;
96 p_md = p_event->u.media_list_item_added.item;
97 libvlc_media_list_view_item_added( p_mlv, p_md, index );
100 media_list_will_add_item( const libvlc_event_t * p_event, void * user_data )
102 libvlc_media_descriptor_t * p_md;
103 libvlc_media_list_view_t * p_mlv = user_data;
104 int index = p_event->u.media_list_will_add_item.index;
105 p_md = p_event->u.media_list_will_add_item.item;
106 libvlc_media_list_view_will_add_item( p_mlv, p_md, index );
109 media_list_item_deleted( const libvlc_event_t * p_event, void * user_data )
111 libvlc_media_descriptor_t * p_md;
112 libvlc_media_list_view_t * p_mlv = user_data;
113 int index = p_event->u.media_list_item_deleted.index;
114 p_md = p_event->u.media_list_item_deleted.item;
115 libvlc_media_list_view_item_deleted( p_mlv, p_md, index );
118 media_list_will_delete_item( const libvlc_event_t * p_event, void * user_data )
120 libvlc_media_descriptor_t * p_md;
121 libvlc_media_list_view_t * p_mlv = user_data;
122 int index = p_event->u.media_list_will_delete_item.index;
123 p_md = p_event->u.media_list_will_delete_item.item;
124 libvlc_media_list_view_will_delete_item( p_mlv, p_md, index );
128 * Public libvlc functions
132 /**************************************************************************
133 * flat_media_list_view_release (private)
134 * (called by media_list_view_release)
135 **************************************************************************/
137 hierarch_media_list_view_release( libvlc_media_list_view_t * p_mlv )
139 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
140 libvlc_MediaListItemAdded,
141 media_list_item_added, p_mlv, NULL );
142 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
143 libvlc_MediaListWillAddItem,
144 media_list_will_add_item, p_mlv, NULL );
145 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
146 libvlc_MediaListItemDeleted,
147 media_list_item_deleted, p_mlv, NULL );
148 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
149 libvlc_MediaListWillDeleteItem,
150 media_list_will_delete_item, p_mlv, NULL );
153 /**************************************************************************
154 * libvlc_media_list_flat_view (Public)
155 **************************************************************************/
156 libvlc_media_list_view_t *
157 libvlc_media_list_hierarchical_view( libvlc_media_list_t * p_mlist,
158 libvlc_exception_t * p_e )
161 libvlc_media_list_view_t * p_mlv;
162 libvlc_media_list_lock( p_mlist );
163 p_mlv = libvlc_media_list_view_new( p_mlist,
164 hierarch_media_list_view_count,
165 hierarch_media_list_view_item_at_index,
166 hierarch_media_list_view_children_at_index,
167 hierarch_media_list_view_release,
170 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
171 libvlc_MediaListItemAdded,
172 media_list_item_added, p_mlv, NULL );
173 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
174 libvlc_MediaListWillAddItem,
175 media_list_will_add_item, p_mlv, NULL );
176 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
177 libvlc_MediaListItemDeleted,
178 media_list_item_deleted, p_mlv, NULL );
179 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
180 libvlc_MediaListWillDeleteItem,
181 media_list_will_delete_item, p_mlv, NULL );
182 libvlc_media_list_unlock( p_mlist );