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add forgotten file

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original commit: 8a30ed73b7e569faf809ca4cd4fa76b61bbd66c6
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Robby Findler 2011-09-05 09:41:49 -05:00
parent b25c7cf3b1
commit b16c4e9076
1 changed files with 13 additions and 0 deletions
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13
collects/framework/private/focus-table.rkt Normal file
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#lang racket/base
(require racket/gui/base racket/class)
(provide frame:lookup-focus-table
frame:set-focus-table)
;; focus-table : hash[eventspace -o> (listof frame)]
(define focus-table (make-hash))
(define (frame:lookup-focus-table [eventspace (current-eventspace)])
(hash-ref focus-table eventspace '()))
(define (frame:set-focus-table eventspace new)
(if (null? new)
(hash-remove! focus-table eventspace)
(hash-set! focus-table eventspace new)))