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_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_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
);
92 /**************************************************************************
93 * media_list_(item|will)_* (private) (Event callback)
94 **************************************************************************/
96 media_list_item_added( const libvlc_event_t
* p_event
, void * user_data
)
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
);
105 media_list_will_add_item( const libvlc_event_t
* p_event
, void * user_data
)
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
);
114 media_list_item_deleted( const libvlc_event_t
* p_event
, void * user_data
)
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
);
123 media_list_will_delete_item( const libvlc_event_t
* p_event
, void * user_data
)
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
);
133 * Public libvlc functions
137 /**************************************************************************
138 * flat_media_list_view_release (private)
139 * (called by media_list_view_release)
140 **************************************************************************/
142 hierarch_media_list_view_release( libvlc_media_list_view_t
* p_mlv
)
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
);
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
)
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
,
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
);