84 lines
3.0 KiB
Scheme
84 lines
3.0 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
|
|
;;;
|
|
;;; This file is part of GNU Guix.
|
|
;;;
|
|
;;; GNU Guix is free software; you can redistribute it and/or modify it
|
|
;;; under the terms of the GNU General Public License as published by
|
|
;;; the Free Software Foundation; either version 3 of the License, or (at
|
|
;;; your option) any later version.
|
|
;;;
|
|
;;; GNU Guix is distributed in the hope that it will be useful, but
|
|
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;;; GNU General Public License for more details.
|
|
;;;
|
|
;;; You should have received a copy of the GNU General Public License
|
|
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
(define-module (gnu installer newt timezone)
|
|
#:use-module (gnu installer steps)
|
|
#:use-module (gnu installer timezone)
|
|
#:use-module (gnu installer newt page)
|
|
#:use-module (guix i18n)
|
|
#:use-module (srfi srfi-1)
|
|
#:use-module (srfi srfi-26)
|
|
#:use-module (srfi srfi-34)
|
|
#:use-module (srfi srfi-35)
|
|
#:use-module (ice-9 match)
|
|
#:use-module (ice-9 receive)
|
|
#:use-module (newt)
|
|
#:export (run-timezone-page))
|
|
|
|
;; Heigth of the listbox displaying timezones.
|
|
(define timezone-listbox-heigth (make-parameter 20))
|
|
|
|
;; Information textbox width.
|
|
(define info-textbox-width (make-parameter 40))
|
|
|
|
(define (fill-timezones listbox timezones)
|
|
"Fill the given LISTBOX with TIMEZONES. Return an association list
|
|
correlating listbox keys with timezones."
|
|
(map (lambda (timezone)
|
|
(let ((key (append-entry-to-listbox listbox timezone)))
|
|
(cons key timezone)))
|
|
timezones))
|
|
|
|
(define (run-timezone-page zonetab)
|
|
"Run a page displaying available timezones, grouped by regions. The user is
|
|
invited to select a timezone. The selected timezone, under Posix format is
|
|
returned."
|
|
(define (all-but-last list)
|
|
(reverse (cdr (reverse list))))
|
|
|
|
(define (run-page timezone-tree)
|
|
(define (loop path)
|
|
(let ((timezones (locate-childrens timezone-tree path)))
|
|
(run-listbox-selection-page
|
|
#:title (G_ "Timezone selection")
|
|
#:info-text (G_ "Please select a timezone.")
|
|
#:listbox-items timezones
|
|
#:listbox-item->text identity
|
|
#:button-text (if (null? path)
|
|
(G_ "Cancel")
|
|
(G_ "Back"))
|
|
#:button-callback-procedure
|
|
(if (null? path)
|
|
(lambda _
|
|
(raise
|
|
(condition
|
|
(&installer-step-abort))))
|
|
(lambda _
|
|
(loop (all-but-last path))))
|
|
#:listbox-callback-procedure
|
|
(lambda (timezone)
|
|
(let* ((timezone* (append path (list timezone)))
|
|
(tz (timezone->posix-tz timezone*)))
|
|
(if (timezone-has-child? timezone-tree timezone*)
|
|
(loop timezone*)
|
|
tz))))))
|
|
(loop '()))
|
|
|
|
(let ((timezone-tree (zonetab->timezone-tree zonetab)))
|
|
(run-page timezone-tree)))
|