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;;; 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 keymap)
#:use-module (gnu installer keymap)
#:use-module (gnu installer steps)
#:use-module (gnu installer newt page)
#:use-module (guix i18n)
#:use-module (guix records)
#:use-module (newt)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:export (run-keymap-page))
(define (run-layout-page layouts layout->text)
(let ((title (G_ "Layout selection")))
(run-listbox-selection-page
#:title title
#:info-text (G_ "Please choose your keyboard layout.")
#:listbox-items layouts
#:listbox-item->text layout->text
#:button-text (G_ "Cancel")
#:button-callback-procedure
(lambda _
(raise
(condition
(&installer-step-abort)))))))
(define (run-variant-page variants variant->text)
(let ((title (G_ "Variant selection")))
(run-listbox-selection-page
#:title title
#:info-text (G_ "Please choose a variant for your keyboard layout.")
#:listbox-items variants
#:listbox-item->text variant->text
#:button-text (G_ "Back")
#:button-callback-procedure
(lambda _
(raise
(condition
(&installer-step-abort)))))))
(define (run-model-page models model->text)
(let ((title (G_ "Keyboard model selection")))
(run-listbox-selection-page
#:title title
#:info-text (G_ "Please choose your keyboard model.")
#:listbox-items models
#:listbox-item->text model->text
#:listbox-default-item (find (lambda (model)
(string=? (x11-keymap-model-name model)
"pc105"))
models)
#:sort-listbox-items? #f
#:button-text (G_ "Back")
#:button-callback-procedure
(lambda _
(raise
(condition
(&installer-step-abort)))))))
(define* (run-keymap-page #:key models layouts)
"Run a page asking the user to select a keyboard model, layout and
variant. MODELS and LAYOUTS are lists of supported X11-KEYMAP-MODEL and
X11-KEYMAP-LAYOUT. Return a list of three elements, the names of the selected
keyboard model, layout and variant."
(define keymap-steps
(list
(installer-step
(id 'model)
(compute
(lambda _
;; TODO: Understand why (run-model-page models x11-keymap-model-name)
;; fails with: warning: possibly unbound variable
;; `%x11-keymap-model-description-procedure.
(run-model-page models (lambda (model)
(x11-keymap-model-description
model))))))
(installer-step
(id 'layout)
(compute
(lambda _
(let* ((layout (run-layout-page
layouts
(lambda (layout)
(x11-keymap-layout-description layout)))))
(if (null? (x11-keymap-layout-variants layout))
;; Break if this layout does not have any variant.
(raise
(condition
(&installer-step-break)))
layout)))))
;; Propose the user to select a variant among those supported by the
;; previously selected layout.
(installer-step
(id 'variant)
(compute
(lambda (result)
(let ((variants (x11-keymap-layout-variants
(result-step result 'layout))))
(run-variant-page variants
(lambda (variant)
(x11-keymap-variant-description
variant)))))))))
(define (format-result result)
(let ((model (x11-keymap-model-name
(result-step result 'model)))
(layout (x11-keymap-layout-name
(result-step result 'layout)))
(variant (and=> (result-step result 'variant)
(lambda (variant)
(x11-keymap-variant-name variant)))))
(list model layout (or variant ""))))
(format-result
(run-installer-steps #:steps keymap-steps)))
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