1 /*****************************************************************************
2 * objects.c: Generic lua<->vlc object wrapper
3 *****************************************************************************
4 * Copyright (C) 2007-2008 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea at videolan tod 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 /*****************************************************************************
26 *****************************************************************************/
35 #include <vlc_common.h>
37 #include <lua.h> /* Low level lua C API */
38 #include <lauxlib.h> /* Higher level C API */
51 /*****************************************************************************
52 * Generic vlc_object_t wrapper creation
53 *****************************************************************************/
54 int __vlclua_push_vlc_object( lua_State *L, vlc_object_t *p_obj,
57 vlc_object_t **udata = (vlc_object_t **)
58 lua_newuserdata( L, sizeof( vlc_object_t * ) );
61 if( luaL_newmetatable( L, "vlc_object" ) )
63 /* Hide the metatable */
64 lua_pushliteral( L, "none of your business" );
65 lua_setfield( L, -2, "__metatable" );
66 if( pf_gc ) /* FIXME */
68 /* Set the garbage collector if needed */
69 lua_pushcfunction( L, pf_gc );
70 lua_setfield( L, -2, "__gc" );
73 lua_setmetatable( L, -2 );
77 int vlclua_gc_release( lua_State *L )
79 vlc_object_t **p_obj = (vlc_object_t **)luaL_checkudata( L, 1, "vlc_object" );
81 vlc_object_release( *p_obj );
85 static int vlclua_object_find( lua_State *L )
91 static int vlclua_get_libvlc( lua_State *L )
93 vlclua_push_vlc_object( L, vlclua_get_this( L )->p_libvlc,
98 static int vlclua_get_playlist( lua_State *L )
100 playlist_t *p_playlist = vlclua_get_playlist_internal( L );
103 vlclua_push_vlc_object( L, p_playlist, vlclua_gc_release );
104 vlc_object_hold( p_playlist );
106 else lua_pushnil( L );
110 static int vlclua_get_input( lua_State *L )
112 input_thread_t *p_input = vlclua_get_input_internal( L );
115 vlclua_push_vlc_object( L, p_input, vlclua_gc_release );
117 else lua_pushnil( L );
121 /*****************************************************************************
123 *****************************************************************************/
124 static const luaL_Reg vlclua_object_reg[] = {
125 { "input", vlclua_get_input },
126 { "playlist", vlclua_get_playlist },
127 { "libvlc", vlclua_get_libvlc },
128 { "find", vlclua_object_find },
132 void luaopen_object( lua_State *L )
135 luaL_register( L, NULL, vlclua_object_reg );
136 lua_setfield( L, -2, "object" );