root/src/control/hierarchical_media_list_view.c

Revision bf1292e44390c6469483cea3817d6c2a3dbd811c, 7.7 kB (checked in by Pierre d'Herbemont <pdherbemont@videolan.org>, 7 months ago)

libvlc: rename libvlc_media_descriptor to libvlc_media and libvlc_media_instance to libvlc_media_player.

  • Property mode set to 100644
Line 
1 /*****************************************************************************
2  * hierarchical_media_list_view.c: libvlc hierarchical media list view functs.
3  *****************************************************************************
4  * Copyright (C) 2007 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Pierre d'Herbemont <pdherbemont # 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
24 #include "libvlc_internal.h"
25 #include <vlc/libvlc.h>
26 #include <assert.h>
27 #include "vlc_arrays.h"
28
29 //#define DEBUG_HIERARCHICAL_VIEW
30
31 #ifdef DEBUG_HIERARCHICAL_VIEW
32 # define trace( fmt, ... ) printf( "%s(): " fmt, __FUNCTION__, ##__VA_ARGS__ )
33 #else
34 # define trace( ... )
35 #endif
36
37 struct libvlc_media_list_view_private_t
38 {
39     vlc_array_t array;
40 };
41
42 /*
43  * Private functions
44  */
45
46 /**************************************************************************
47  *       flat_media_list_view_count  (private)
48  * (called by media_list_view_count)
49  **************************************************************************/
50 static int
51 hierarch_media_list_view_count( libvlc_media_list_view_t * p_mlv,
52                                 libvlc_exception_t * p_e )
53 {
54     return libvlc_media_list_count( p_mlv->p_mlist, p_e );
55 }
56
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_t *
62 hierarch_media_list_view_item_at_index( libvlc_media_list_view_t * p_mlv,
63                                     int index,
64                                     libvlc_exception_t * p_e )
65 {
66     return libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
67 }
68
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,
75                                         int index,
76                                         libvlc_exception_t * p_e )
77 {
78     libvlc_media_t * p_md;
79     libvlc_media_list_t * p_submlist;
80     libvlc_media_list_view_t * p_ret;
81     p_md = libvlc_media_list_item_at_index( p_mlv->p_mlist, index, p_e );
82     if( !p_md ) return NULL;
83     p_submlist = libvlc_media_subitems( p_md, p_e );
84     libvlc_media_release( p_md );
85     if( !p_submlist ) return NULL;
86     p_ret = libvlc_media_list_hierarchical_view( p_submlist, p_e );
87     libvlc_media_list_release( p_submlist );
88
89     return p_ret;
90 }
91
92 /**************************************************************************
93  *       media_list_(item|will)_* (private) (Event callback)
94  **************************************************************************/
95 static void
96 media_list_item_added( const libvlc_event_t * p_event, void * user_data )
97 {
98     libvlc_media_t * p_md;
99     libvlc_media_list_view_t * p_mlv = user_data;
100     int index = p_event->u.media_list_item_added.index;
101     p_md = p_event->u.media_list_item_added.item;
102     libvlc_media_list_view_item_added( p_mlv, p_md, index );
103 }
104 static void
105 media_list_will_add_item( const libvlc_event_t * p_event, void * user_data )
106 {
107     libvlc_media_t * p_md;
108     libvlc_media_list_view_t * p_mlv = user_data;
109     int index = p_event->u.media_list_will_add_item.index;
110     p_md = p_event->u.media_list_will_add_item.item;
111     libvlc_media_list_view_will_add_item( p_mlv, p_md, index );
112 }
113 static void
114 media_list_item_deleted( const libvlc_event_t * p_event, void * user_data )
115 {
116     libvlc_media_t * p_md;
117     libvlc_media_list_view_t * p_mlv = user_data;
118     int index = p_event->u.media_list_item_deleted.index;
119     p_md = p_event->u.media_list_item_deleted.item;
120     libvlc_media_list_view_item_deleted( p_mlv, p_md, index );
121 }
122 static void
123 media_list_will_delete_item( const libvlc_event_t * p_event, void * user_data )
124 {
125     libvlc_media_t * p_md;
126     libvlc_media_list_view_t * p_mlv = user_data;
127     int index = p_event->u.media_list_will_delete_item.index;
128     p_md = p_event->u.media_list_will_delete_item.item;
129     libvlc_media_list_view_will_delete_item( p_mlv, p_md, index );
130 }
131
132 /*
133  * Public libvlc functions
134  */
135
136
137 /**************************************************************************
138  *       flat_media_list_view_release (private)
139  * (called by media_list_view_release)
140  **************************************************************************/
141 static void
142 hierarch_media_list_view_release( libvlc_media_list_view_t * p_mlv )
143 {
144     libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
145                          libvlc_MediaListItemAdded,
146                          media_list_item_added, p_mlv, NULL );
147     libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
148                          libvlc_MediaListWillAddItem,
149                          media_list_will_add_item, p_mlv, NULL );
150     libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
151                          libvlc_MediaListItemDeleted,
152                          media_list_item_deleted, p_mlv, NULL );
153     libvlc_event_detach( p_mlv->p_mlist->p_event_manager,
154                          libvlc_MediaListWillDeleteItem,
155                          media_list_will_delete_item, p_mlv, NULL );
156 }
157
158 /**************************************************************************
159  *       libvlc_media_list_flat_view (Public)
160  **************************************************************************/
161 libvlc_media_list_view_t *
162 libvlc_media_list_hierarchical_view( libvlc_media_list_t * p_mlist,
163                                      libvlc_exception_t * p_e )
164 {
165     trace("\n");
166     libvlc_media_list_view_t * p_mlv;
167     p_mlv = libvlc_media_list_view_new( p_mlist,
168                                         hierarch_media_list_view_count,
169                                         hierarch_media_list_view_item_at_index,
170                                         hierarch_media_list_view_children_at_index,
171                                         libvlc_media_list_hierarchical_view,
172                                         hierarch_media_list_view_release,
173                                         NULL,
174                                         p_e );
175     libvlc_media_list_lock( p_mlist );
176     libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
177                          libvlc_MediaListItemAdded,
178                          media_list_item_added, p_mlv, NULL );
179     libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
180                          libvlc_MediaListWillAddItem,
181                          media_list_will_add_item, p_mlv, NULL );
182     libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
183                          libvlc_MediaListItemDeleted,
184                          media_list_item_deleted, p_mlv, NULL );
185     libvlc_event_attach( p_mlv->p_mlist->p_event_manager,
186                          libvlc_MediaListWillDeleteItem,
187                          media_list_will_delete_item, p_mlv, NULL );
188     libvlc_media_list_unlock( p_mlist );
189     return p_mlv;
190 }
Note: See TracBrowser for help on using the browser.