adamc@1025: con t ctx data = list (data * xml ctx [] [] * source bool)
adamc@1025: 
adamc@1025: fun create [ctx] [data] (items : list (data * xml ctx [] [] * bool)) =
adamc@1025:     List.mapM (fn (d, x, b) => s <- source b; return (d, x, s)) items
adamc@1025: 
adamc@1025: fun render [ctx] [data] [[Body] ~ ctx] (t : t ([Body] ++ ctx) data) =
adamc@1025:     List.mapX (fn (_, x, s) => <xml><ccheckbox source={s}/> {x}<br/></xml>) t
adamc@1025: 
adamc@1025: fun selected [ctx] [data] (t : t ctx data) =
adamc@1025:     List.foldlM (fn (d, _, s) ls =>
adamc@1025:                     s <- signal s;
adamc@1025:                     return (if s then
adamc@1025:                                 d :: ls
adamc@1025:                             else
adamc@1025:                                 ls)) [] t