basis/cocoa/callbacks/callbacks.factor

   1 ! Copyright (C) 2005, 2006 Kevin Reid.
   2 ! See http://factorcode.org/license.txt for BSD license.
   3 IN: cocoa.callbacks
   4 USING: assocs kernel namespaces cocoa cocoa.classes
   5 cocoa.subclassing debugger ;
   6
   7 SYMBOL: callbacks
   8
   9 : reset-callbacks ( -- )
  10     H{ } clone callbacks set-global ;
  11
  12 reset-callbacks
  13
  14 CLASS: {
  15     { +name+ "FactorCallback" }
  16     { +superclass+ "NSObject" }
  17 }
  18
  19 { "perform:" "void" { "id" "SEL" "id" }
  20     [ 2drop callbacks get at try ]
  21 }
  22
  23 { "dealloc" "void" { "id" "SEL" }
  24     [
  25         drop
  26         dup callbacks get delete-at
  27         SUPER-> dealloc
  28     ]
  29 } ;
  30
  31 : <FactorCallback> ( quot -- id )
  32     FactorCallback -> alloc -> init
  33     [ callbacks get set-at ] keep ;