134 lines
4.6 KiB
Scheme
134 lines
4.6 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
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;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu installer newt keymap)
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#:use-module (gnu installer keymap)
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#:use-module (gnu installer steps)
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#:use-module (gnu installer newt page)
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#:use-module (guix i18n)
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#:use-module (guix records)
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#:use-module (newt)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-34)
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#:use-module (srfi srfi-35)
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#:use-module (ice-9 match)
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#:export (run-keymap-page
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keyboard-layout->configuration))
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(define (run-layout-page layouts layout->text)
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(let ((title (G_ "Layout")))
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(run-listbox-selection-page
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#:title title
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#:info-text (G_ "Please choose your keyboard layout.")
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#:listbox-items layouts
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#:listbox-item->text layout->text
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#:sort-listbox-items? #f
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#:button-text (G_ "Exit")
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#:button-callback-procedure
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(lambda _
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(raise
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(condition
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(&installer-step-abort)))))))
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(define (run-variant-page variants variant->text)
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(let ((title (G_ "Variant")))
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(run-listbox-selection-page
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#:title title
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#:info-text (G_ "Please choose a variant for your keyboard layout.")
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#:listbox-items variants
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#:listbox-item->text variant->text
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#:sort-listbox-items? #f
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#:button-text (G_ "Back")
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#:button-callback-procedure
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(lambda _
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(raise
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(condition
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(&installer-step-abort)))))))
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(define (sort-layouts layouts)
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"Sort LAYOUTS list by putting the US layout ahead and return it."
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(call-with-values
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(lambda ()
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(partition
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(lambda (layout)
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(let ((name (x11-keymap-layout-name layout)))
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(string=? name "us")))
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layouts))
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(cut append <> <>)))
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(define (sort-variants variants)
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"Sort VARIANTS list by putting the international variant ahead and return it."
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(call-with-values
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(lambda ()
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(partition
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(lambda (variant)
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(let ((name (x11-keymap-variant-name variant)))
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(string=? name "altgr-intl")))
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variants))
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(cut append <> <>)))
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(define* (run-keymap-page layouts)
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"Run a page asking the user to select a keyboard layout and variant. LAYOUTS
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is a list of supported X11-KEYMAP-LAYOUT. Return a list of two elements, the
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names of the selected keyboard layout and variant."
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(define keymap-steps
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(list
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(installer-step
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(id 'layout)
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(compute
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(lambda _
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(run-layout-page
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(sort-layouts layouts)
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(lambda (layout)
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(x11-keymap-layout-description layout))))))
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;; Propose the user to select a variant among those supported by the
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;; previously selected layout.
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(installer-step
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(id 'variant)
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(compute
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(lambda (result _)
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(let* ((layout (result-step result 'layout))
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(variants (x11-keymap-layout-variants layout)))
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;; Return #f if the layout does not have any variant.
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(and (not (null? variants))
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(run-variant-page
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(sort-variants variants)
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(lambda (variant)
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(x11-keymap-variant-description
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variant))))))))))
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(define (format-result result)
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(let ((layout (x11-keymap-layout-name
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(result-step result 'layout)))
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(variant (and=> (result-step result 'variant)
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(lambda (variant)
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(x11-keymap-variant-name variant)))))
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(list layout (or variant ""))))
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(format-result
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(run-installer-steps #:steps keymap-steps)))
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(define (keyboard-layout->configuration keymap)
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"Return the operating system configuration snippet to install KEYMAP."
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(match keymap
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((name "")
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`((keyboard-layout (keyboard-layout ,name))))
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((name variant)
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`((keyboard-layout (keyboard-layout ,name ,variant))))))
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