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when the filename changes, re-run the "what language are we in" code to

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facilitate things in the s-exp language with relative paths

closes PR 12177
This commit is contained in:
Robby Findler 2011-09-05 13:57:03 -05:00
parent d36257701d
commit 14e62f6caf
1 changed files with 15 additions and 2 deletions
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17
collects/drracket/private/module-language-tools.rkt
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@ -89,7 +89,7 @@
(define definitions-text-mixin
(mixin (text:basic<%> drracket:unit:definitions-text<%>) (drracket:module-language-tools:definitions-text<%>)
(inherit get-next-settings)
(inherit get-next-settings get-filename)
(define in-module-language? #f) ;; true when we are in the module language
(define hash-lang-last-location #f) ;; non-false when we know where the hash-lang line ended
(define hash-lang-language #f) ;; non-false is the string that was parsed for the language
@ -101,13 +101,26 @@
(inner (void) after-delete start len)
(modification-at start))
(define last-filename #f)
(define/augment (after-save-file success?)
(inner (void) after-save-file success?)
(define this-filename (get-filename))
(unless (equal? last-filename this-filename)
(set! last-filename this-filename)
(modification-at #f)))
(define timer #f)
;; modification-at : (or/c #f number) -> void
;; checks to see if the lang line has changed when start
;; is in the region of the lang line, or when start is #f, or
;; when there is no #lang line known.
(define/private (modification-at start)
(send (send (get-tab) get-frame) when-initialized
(λ ()
(when in-module-language?
(when (or (not hash-lang-last-location)
(when (or (not start)
(not hash-lang-last-location)
(<= start hash-lang-last-location))
(unless timer