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 *****************************************************************************/
28 #include <vlc/libvlc.h>
29 #include <vlc/libvlc_media.h>
30 #include <vlc/libvlc_media_list.h>
31 #include <vlc/libvlc_media_list_view.h>
33 #include "media_list_internal.h"
34 #include "media_list_view_internal.h"
36 //#define DEBUG_HIERARCHICAL_VIEW
38 #ifdef DEBUG_HIERARCHICAL_VIEW
39 # define trace( fmt, ... ) printf( "%s(): " fmt, __FUNCTION__, ##__VA_ARGS__ )
48 /**************************************************************************
49 * flat_media_list_view_count (private)
50 * (called by media_list_view_count)
51 **************************************************************************/
53 hierarch_media_list_view_count( libvlc_media_list_view_t * p_mlv,
54 libvlc_exception_t * p_e )
57 return libvlc_media_list_count( p_mlv->p_mlist );
60 /**************************************************************************
61 * flat_media_list_view_item_at_index (private)
62 * (called by flat_media_list_view_item_at_index)
63 **************************************************************************/
64 static libvlc_media_t *
65 hierarch_media_list_view_item_at_index( libvlc_media_list_view_t * p_mlv,
67 libvlc_exception_t * p_e )
69 return libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
72 /**************************************************************************
73 * flat_media_list_view_item_at_index (private)
74 * (called by flat_media_list_view_item_at_index)
75 **************************************************************************/
76 static libvlc_media_list_view_t *
77 hierarch_media_list_view_children_at_index( libvlc_media_list_view_t * p_mlv,
79 libvlc_exception_t * p_e )
81 libvlc_media_t * p_md;
82 libvlc_media_list_t * p_submlist;
83 libvlc_media_list_view_t * p_ret;
84 p_md = libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
85 if( !p_md ) return NULL;
86 p_submlist = libvlc_media_subitems( p_md );
87 libvlc_media_release( p_md );
88 if( !p_submlist ) return NULL;
89 p_ret = libvlc_media_list_hierarchical_view( p_submlist, p_e );
90 libvlc_media_list_release( p_submlist );
95 /**************************************************************************
96 * media_list_(item|will)_* (private) (Event callback)
97 **************************************************************************/
99 media_list_item_added( const libvlc_event_t * p_event, void * user_data )
101 libvlc_media_t * p_md;
102 libvlc_media_list_view_t * p_mlv = user_data;
103 int index = p_event->u.media_list_item_added.index;
104 p_md = p_event->u.media_list_item_added.item;
105 libvlc_media_list_view_item_added( p_mlv, p_md, index );
108 media_list_will_add_item( const libvlc_event_t * p_event, void * user_data )
110 libvlc_media_t * p_md;
111 libvlc_media_list_view_t * p_mlv = user_data;
112 int index = p_event->u.media_list_will_add_item.index;
113 p_md = p_event->u.media_list_will_add_item.item;
114 libvlc_media_list_view_will_add_item( p_mlv, p_md, index );
117 media_list_item_deleted( const libvlc_event_t * p_event, void * user_data )
119 libvlc_media_t * p_md;
120 libvlc_media_list_view_t * p_mlv = user_data;
121 int index = p_event->u.media_list_item_deleted.index;
122 p_md = p_event->u.media_list_item_deleted.item;
123 libvlc_media_list_view_item_deleted( p_mlv, p_md, index );
126 media_list_will_delete_item( const libvlc_event_t * p_event, void * user_data )
128 libvlc_media_t * p_md;
129 libvlc_media_list_view_t * p_mlv = user_data;
130 int index = p_event->u.media_list_will_delete_item.index;
131 p_md = p_event->u.media_list_will_delete_item.item;
132 libvlc_media_list_view_will_delete_item( p_mlv, p_md, index );
136 * Public libvlc functions
140 /**************************************************************************
141 * flat_media_list_view_release (private)
142 * (called by media_list_view_release)
143 **************************************************************************/
145 hierarch_media_list_view_release( libvlc_media_list_view_t * p_mlv )
147 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
148 libvlc_MediaListItemAdded,
149 media_list_item_added, p_mlv );
150 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
151 libvlc_MediaListWillAddItem,
152 media_list_will_add_item, p_mlv );
153 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
154 libvlc_MediaListItemDeleted,
155 media_list_item_deleted, p_mlv );
156 libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
157 libvlc_MediaListWillDeleteItem,
158 media_list_will_delete_item, p_mlv );
161 /**************************************************************************
162 * libvlc_media_list_flat_view (Public)
163 **************************************************************************/
164 libvlc_media_list_view_t *
165 libvlc_media_list_hierarchical_view( libvlc_media_list_t * p_mlist,
166 libvlc_exception_t * p_e )
169 libvlc_media_list_view_t * p_mlv;
170 p_mlv = libvlc_media_list_view_new( p_mlist,
171 hierarch_media_list_view_count,
172 hierarch_media_list_view_item_at_index,
173 hierarch_media_list_view_children_at_index,
174 libvlc_media_list_hierarchical_view,
175 hierarch_media_list_view_release,
178 libvlc_media_list_lock( p_mlist );
179 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
180 libvlc_MediaListItemAdded,
181 media_list_item_added, p_mlv );
182 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
183 libvlc_MediaListWillAddItem,
184 media_list_will_add_item, p_mlv );
185 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
186 libvlc_MediaListItemDeleted,
187 media_list_item_deleted, p_mlv );
188 libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
189 libvlc_MediaListWillDeleteItem,
190 media_list_will_delete_item, p_mlv );
191 libvlc_media_list_unlock( p_mlist );