library/ui/cocoa/callback.factor

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