305 lines
14 KiB
Racket
305 lines
14 KiB
Racket
#lang racket/base
|
|
(require string-constants
|
|
mred
|
|
racket/class
|
|
racket/file
|
|
racket/list
|
|
racket/match
|
|
(prefix-in raw: net/sendurl)
|
|
net/url
|
|
(prefix-in fw: framework))
|
|
(provide send-url
|
|
(rename-out [raw:browser-preference? browser-preference?])
|
|
update-browser-preference
|
|
install-help-browser-preference-panel
|
|
add-to-browser-prefs-panel)
|
|
|
|
; : -> bool
|
|
(define (unix-browser?)
|
|
(eq? (system-type) 'unix))
|
|
|
|
(fw:preferences:set-default
|
|
'external-browser
|
|
(let ([pref (get-preference 'external-browser
|
|
(lambda () #f)
|
|
#:timeout-lock-there (lambda (path) #f))])
|
|
(and (raw:browser-preference? pref) pref))
|
|
raw:browser-preference?)
|
|
|
|
(define http-proxy-preference 'plt:http-proxy)
|
|
|
|
;; proxy-pref? : any -> boolean
|
|
;; determines if the input is a valid setting for the
|
|
;; http-proxy-preference pref
|
|
(define (proxy-pref? x)
|
|
(match x
|
|
[#f #t]
|
|
[`("http" ,(? string?) ,(? integer?)) #t]
|
|
[else #f]))
|
|
|
|
;; sync-current-proxy-servers : proxy-pref -> void
|
|
;; syncs current-proxy-servers parameter with the proxy-pref-val
|
|
(define (sync-current-proxy-servers pref-val)
|
|
(let* ([ops (current-proxy-servers)]
|
|
[removed (remove-all-proxies "http" ops)])
|
|
(current-proxy-servers
|
|
(if pref-val (cons pref-val removed) removed))))
|
|
|
|
(define (remove-all-proxies scheme proxies)
|
|
(filter (lambda (x) (and (pair? x) (not (equal? (car x) scheme))))
|
|
proxies))
|
|
|
|
(fw:preferences:set-default http-proxy-preference #f proxy-pref?)
|
|
(sync-current-proxy-servers (fw:preferences:get http-proxy-preference))
|
|
(void (fw:preferences:add-callback http-proxy-preference (lambda (p v) (sync-current-proxy-servers v))))
|
|
|
|
(define send-url
|
|
(if (unix-browser?)
|
|
(lambda (url . args)
|
|
(when (or (get-preference 'external-browser (lambda () #f))
|
|
;; either the preference doesn't exist or is #f
|
|
(update-browser-preference url))
|
|
(apply raw:send-url url args)))
|
|
raw:send-url))
|
|
|
|
; : str -> void
|
|
; to prompt the user for a browser preference and update the preference
|
|
(define (update-browser-preference url)
|
|
(or (not (unix-browser?))
|
|
(choose-browser url)))
|
|
|
|
; : (U symbol #f) -> void
|
|
; to set the default browser
|
|
(define (set-browser! browser)
|
|
(fw:preferences:set 'external-browser browser))
|
|
|
|
;; Tries to put low-level prefs three times, sleeping a bit in
|
|
;; between, then gives up.
|
|
(define (try-put-preferences names vals)
|
|
(let loop ([tries 0])
|
|
(unless (= tries 3)
|
|
(put-preferences names vals
|
|
(lambda (lock-file)
|
|
(sleep 0.2)
|
|
(loop (add1 tries)))))))
|
|
|
|
(define unix-browser-names
|
|
(map (lambda (s)
|
|
(string-titlecase (regexp-replace* #rx"-" (symbol->string s) " ")))
|
|
raw:unix-browser-list))
|
|
|
|
;; : (U str #f) -> (U symbol #f)
|
|
;; to prompt the user for a browser preference
|
|
;; #f for the URL indicates a pre-emptive request by Help Desk,
|
|
;; and in that case, the user can choose to use the internal
|
|
;; broswer.
|
|
(define (choose-browser url)
|
|
(let* ([title (string-constant choose-browser)]
|
|
[d (make-object dialog% title)]
|
|
[main-pane (make-object vertical-pane% d)]
|
|
[internal-ok? (not url)]
|
|
[ok? #f]
|
|
[orig-external (fw:preferences:get 'external-browser)])
|
|
(make-object message% title main-pane)
|
|
;; No need to show the URL (it can be very long)
|
|
;; (when url
|
|
;; (make-object message% (format "URL: ~a" url) main-pane))
|
|
(let-values ([(panel callbacks) (make-help-browser-preference-panel internal-ok? #f (lambda (f) (f main-pane)))])
|
|
(let*-values ([(button-pane) (instantiate horizontal-panel% (main-pane)
|
|
(alignment '(right center)))]
|
|
[(ok-button cancel-button)
|
|
(fw:gui-utils:ok/cancel-buttons
|
|
button-pane
|
|
(lambda (b e) (set! ok? #t) (send d show #f))
|
|
(lambda (b e)
|
|
(fw:preferences:set 'external-browser orig-external)
|
|
(send d show #f)))]
|
|
[(enable-button) (lambda (_n _v)
|
|
(queue-callback
|
|
(lambda ()
|
|
(send ok-button enable (fw:preferences:get 'external-browser)))))])
|
|
(send ok-button enable #f)
|
|
(set! callbacks
|
|
(cons
|
|
(fw:preferences:add-callback 'external-browser enable-button)
|
|
callbacks)))
|
|
(send d show #t)
|
|
(map (lambda (f) (f)) callbacks)
|
|
ok?)))
|
|
|
|
(define panel-installed? #f)
|
|
(define prefs-panel #f)
|
|
(define synchronized? #f)
|
|
(define additions null)
|
|
|
|
(define (install-help-browser-preference-panel)
|
|
(unless panel-installed?
|
|
(set! panel-installed? #t)
|
|
(make-help-browser-preference-panel
|
|
#t #t
|
|
(lambda (f) (fw:preferences:add-panel
|
|
(string-constant browser)
|
|
(lambda (parent)
|
|
(let-values ([(panel cbs) (f parent)])
|
|
(set! prefs-panel panel)
|
|
(map (lambda (f) (f panel)) additions)
|
|
(set! additions null)
|
|
panel)))))))
|
|
|
|
(define (add-to-browser-prefs-panel proc)
|
|
(if prefs-panel
|
|
(proc prefs-panel)
|
|
(set! additions (append additions (list proc)))))
|
|
|
|
(define (make-help-browser-preference-panel set-help? ask-later? mk)
|
|
(mk
|
|
(lambda (parent)
|
|
(define callbacks null)
|
|
(let ([pref-panel (instantiate vertical-panel% ()
|
|
[parent parent]
|
|
[alignment '(left center)])])
|
|
|
|
;; -------------------- external browser for Unix --------------------
|
|
(when (unix-browser?)
|
|
(unless synchronized?
|
|
;; Keep 'external-browser in sync
|
|
(fw:preferences:add-callback 'external-browser
|
|
(lambda (name browser)
|
|
(try-put-preferences (list 'external-browser) (list browser)))))
|
|
|
|
(letrec ([v-panel (instantiate group-box-panel% ()
|
|
(parent pref-panel)
|
|
(alignment '(right center))
|
|
(stretchable-height #f)
|
|
(label (string-constant external-browser-choice-title)))]
|
|
[h-panel (instantiate horizontal-panel% ()
|
|
(parent v-panel)
|
|
(alignment '(center bottom)))]
|
|
[none-index (length raw:unix-browser-list)]
|
|
[custom-index (add1 none-index)]
|
|
[r (instantiate radio-box% ()
|
|
(label #f)
|
|
(choices (append unix-browser-names
|
|
(list (string-constant no-browser)
|
|
(string-constant browser-command-line-label))))
|
|
(parent h-panel)
|
|
(callback
|
|
(lambda (radio event)
|
|
(let ([n (send radio get-selection)])
|
|
(set-browser!
|
|
(cond
|
|
[(= n none-index) #f]
|
|
[(= n custom-index) (get-custom)]
|
|
[else (list-ref raw:unix-browser-list n)]))))))]
|
|
[select-custom
|
|
(lambda (_ __)
|
|
(send r set-selection custom-index)
|
|
(set-browser! (get-custom)))]
|
|
[get-custom
|
|
(lambda () (cons (send pre get-value) (send post get-value)))]
|
|
[template-panel (instantiate horizontal-panel% (h-panel)
|
|
(spacing 0)
|
|
(stretchable-height #f))]
|
|
[pre (instantiate text-field% ()
|
|
(label #f) (parent template-panel) (callback select-custom)
|
|
(horiz-margin 0))]
|
|
[mess (instantiate message% () (label "<URL>") (parent template-panel)
|
|
(horiz-margin 0))]
|
|
[post (instantiate text-field% ()
|
|
(label #f) (parent template-panel) (callback select-custom)
|
|
(horiz-margin 0))]
|
|
[note1 (instantiate message% ((string-constant browser-cmdline-expl-line-1)
|
|
v-panel))]
|
|
[note2 (instantiate message% ((string-constant browser-cmdline-expl-line-2)
|
|
v-panel))]
|
|
[refresh-controls (lambda (pref)
|
|
(if (pair? pref)
|
|
(begin
|
|
(send r set-selection custom-index)
|
|
(send pre set-value (car pref))
|
|
(send post set-value (cdr pref)))
|
|
(let init ([x raw:unix-browser-list] [n 0])
|
|
(cond
|
|
[(null? x) (send r set-selection n)]
|
|
[else (if (eq? pref (car x))
|
|
(send r set-selection n)
|
|
(init (cdr x) (add1 n)))]))))])
|
|
|
|
(unless ask-later?
|
|
(send r enable none-index #f))
|
|
|
|
(refresh-controls (fw:preferences:get 'external-browser))
|
|
(set! callbacks
|
|
(cons (fw:preferences:add-callback 'external-browser
|
|
(lambda (name browser) (refresh-controls browser)))
|
|
callbacks))))
|
|
|
|
;; -------------------- proxy for doc downloads --------------------
|
|
(when set-help?
|
|
(letrec ([p (instantiate group-box-panel% ()
|
|
[label (string-constant http-proxy)]
|
|
[parent pref-panel]
|
|
[stretchable-height #f]
|
|
[alignment '(left top)])]
|
|
[rb (make-object radio-box%
|
|
#f (list (string-constant proxy-direct-connection)
|
|
(string-constant proxy-use-proxy))
|
|
p
|
|
(lambda (r e)
|
|
(let ([proxy? (= 1 (send r get-selection))])
|
|
(send proxy-spec enable proxy?)
|
|
(if proxy?
|
|
(update-proxy)
|
|
(fw:preferences:set http-proxy-preference #f)))))]
|
|
[proxy-spec (instantiate horizontal-panel% (p)
|
|
[stretchable-width #f]
|
|
[stretchable-height #f]
|
|
[alignment '(left center)])]
|
|
[update-proxy (lambda ()
|
|
(let ([host (send host get-value)]
|
|
[port (send port get-value)])
|
|
(let ([ok? (and (regexp-match? #rx"^[-0-9a-zA-Z.]+$" host)
|
|
(regexp-match? #rx"^[0-9]+$" port)
|
|
(string->number port)
|
|
(<= 1 (string->number port) 65535))])
|
|
(when ok?
|
|
(fw:preferences:set
|
|
http-proxy-preference
|
|
(list "http" host (string->number port))))
|
|
(send bad-host show (not ok?)))))]
|
|
[host (make-object text-field%
|
|
(string-constant proxy-host)
|
|
proxy-spec (lambda (x y) (update-proxy))
|
|
"www.someplacethatisaproxy.domain.com")]
|
|
[port (make-object text-field%
|
|
(string-constant proxy-port)
|
|
proxy-spec (lambda (x y) (update-proxy)) "65535")]
|
|
[bad-host (make-object message%
|
|
(string-constant proxy-bad-host)
|
|
p)]
|
|
[update-gui
|
|
(lambda (proxy-val)
|
|
(send bad-host show #f)
|
|
(if proxy-val
|
|
(begin
|
|
(send rb set-selection 1)
|
|
(send proxy-spec enable #t)
|
|
(unless (string=? (cadr proxy-val) (send host get-value))
|
|
(send host set-value (cadr proxy-val)))
|
|
(unless (equal? (caddr proxy-val) (string->number (send port get-value)))
|
|
(send port set-value (number->string (caddr proxy-val)))))
|
|
(begin
|
|
(send rb set-selection 0)
|
|
(send proxy-spec enable #f)
|
|
(send host set-value "")
|
|
(send port set-value ""))))])
|
|
|
|
(fw:preferences:add-callback http-proxy-preference
|
|
(lambda (name val)
|
|
(update-gui val)))
|
|
(update-gui (fw:preferences:get http-proxy-preference))
|
|
(send bad-host show #f)))
|
|
|
|
(set! synchronized? #t)
|
|
(values pref-panel callbacks)))))
|