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strengthen shortcut-prefix contract

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(technically, strengthen the way it is written in the docs; it
was already being enforced that way)
This commit is contained in:
Robby Findler 2014-01-08 13:42:02 -06:00
parent a7304d18eb
commit 370418ac2e
4 changed files with 30 additions and 10 deletions
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8
pkgs/gui-pkgs/gui-doc/scribblings/gui/checkable-menu-item-class.scrbl
View File

@ -19,8 +19,12 @@ A @racket[checkable-menu-item%] is a string-labelled menu item that
[demand-callback ((is-a?/c menu-item%) . -> . any)
(lambda (i) (void))]
[checked any/c #f]
[shortcut-prefix (listof (or/c 'alt 'cmd 'meta 'ctl
'shift 'option))
[shortcut-prefix (and/c (listof (or/c 'alt 'cmd 'meta 'ctl
'shift 'option))
(λ (x) (implies (equal? 'unix (system-type))
(not (and (member 'alt x)
(member 'meta x)))))
(λ (x) (equal? x (remove-duplicates x))))
(get-default-shortcut-prefix)])]{
Creates a new menu item in @racket[parent]. The item is initially

15
pkgs/gui-pkgs/gui-doc/scribblings/gui/common.rkt
View File

@ -15,9 +15,12 @@
(require (for-label racket/gui/base
racket/class
racket/contract
racket/base))
(provide (for-label (all-from-out racket/gui/base)
(all-from-out racket/class)
(all-from-out racket/contract)
(all-from-out racket/base))))
racket/base
racket/list
racket/bool))
(provide (for-label (all-from-out racket/gui/base
racket/class
racket/contract
racket/base
racket/list
racket/bool))))

3
pkgs/gui-pkgs/gui-doc/scribblings/gui/menu-item-class.scrbl
View File

@ -17,6 +17,9 @@ A @racket[menu-item%] is a plain string-labelled menu item. Its
(lambda (i) (void))]
[shortcut-prefix (and/c (listof (or/c 'alt 'cmd 'meta 'ctl
'shift 'option))
(λ (x) (implies (equal? 'unix (system-type))
(not (and (member 'alt x)
(member 'meta x)))))
(λ (x) (equal? x (remove-duplicates x))))
(get-default-shortcut-prefix)])]{

14
pkgs/gui-pkgs/gui-doc/scribblings/gui/selectable-menu-item-intf.scrbl
View File

@ -43,7 +43,12 @@ For a list of allowed key symbols, see @xmethod[key-event%
}
@defmethod[(get-shortcut-prefix)
(listof (or/c 'alt 'cmd 'meta 'ctl 'shift 'option))]{
(and/c (listof (or/c 'alt 'cmd 'meta 'ctl
'shift 'option))
(λ (x) (implies (equal? 'unix (system-type))
(not (and (member 'alt x)
(member 'meta x)))))
(λ (x) (equal? x (remove-duplicates x))))]{
Returns a list of symbols that indicates the keyboard prefix used for the menu
item's keyboard shortcut. The allowed symbols for the list are the following:
@ -99,7 +104,12 @@ keyboard shortcut.
}
@defmethod[(set-shortcut-prefix [prefix (listof (or/c 'alt 'cmd 'meta 'ctl 'shift 'option))])
@defmethod[(set-shortcut-prefix [prefix (and/c (listof (or/c 'alt 'cmd 'meta 'ctl
'shift 'option))
(λ (x) (implies (equal? 'unix (system-type))
(not (and (member 'alt x)
(member 'meta x)))))
(λ (x) (equal? x (remove-duplicates x))))])
void?]{
Sets a list of symbols to indicates the keyboard prefix used for the