;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2020 Florian Pelz <pelzflorian@pelzflorian.de>
;;; Copyright © 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
;;;
;;; 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-mod</td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=fce852c45817793998dc4b7f174033b4796b1b88'>refs</a><a href='/guix/log/build-aux/cuirass/gnu-system.scm'>log</a><a href='/guix/tree/build-aux/cuirass/gnu-system.scm?id=fce852c45817793998dc4b7f174033b4796b1b88'>tree</a><a href='/guix/commit/build-aux/cuirass/gnu-system.scm?id=fce852c45817793998dc4b7f174033b4796b1b88'>commit</a><a class='active' href='/guix/diff/build-aux/cuirass/gnu-system.scm?id=fce852c45817793998dc4b7f174033b4796b1b88&amp;id2=978c9bc50dcc96a129da79efab3a471bcd599f85'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/build-aux/cuirass/gnu-system.scm'>
<input type='hidden' name='id' value='fce852c45817793998dc4b7f174033b4796b1b88'/><input type='hidden' name='id2' value='978c9bc50dcc96a129da79efab3a471bcd599f85'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/diff/?id=fce852c45817793998dc4b7f174033b4796b1b88&amp;id2=978c9bc50dcc96a129da79efab3a471bcd599f85'>root</a>/<a href='/guix/diff/build-aux?id=fce852c45817793998dc4b7f174033b4796b1b88&amp;id2=978c9bc50dcc96a129da79efab3a471bcd599f85'>build-aux</a>/<a href='/guix/diff/build-aux/cuirass?id=fce852c45817793998dc4b7f174033b4796b1b88&amp;id2=978c9bc50dcc96a129da79efab3a471bcd599f85'>cuirass</a>/<a href='/guix/diff/build-aux/cuirass/gnu-system.scm?id=fce852c45817793998dc4b7f174033b4796b1b88&amp;id2=978c9bc50dcc96a129da79efab3a471bcd599f85'>gnu-system.scm</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='fce852c45817793998dc4b7f174033b4796b1b88'/><input type='hidden' name='id2' value='978c9bc50dcc96a129da79efab3a471bcd599f85'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/guix/diff/?id=fce852c45817793998dc4b7f174033b4796b1b88&amp;id2=978c9bc50dcc96a129da79efab3a471bcd599f85'>Diffstat</a> (limited to 'build-aux/cuirass/gnu-system.scm')</div><table summary='diffstat' class='diffstat'></table><div class='diffstat-summary'>0 files changed, 0 insertions, 0 deletions</div><table summary='diff' class='diff'><tr><td></td></tr></table></div> <!-- class=content -->
                         <div class=footer>generated by
                             <a href="https://git.zx2c4.com/cgit/about/">
                                 cgit
                             </a>
                         </div>
                        </div> <!-- id=cgit -->
</body>
</html>
variants
  ;; These layout+variant combinations are Latin after all.
  '(("ir" "ku")))

(define (toggleable-latin-layout layout variant)
  "If LAYOUT is a non-Latin layout, return a new combined layout,
a variant, and options that allow the user to switch between the
non-Latin and the Latin layout.  Otherwise, return LAYOUT, VARIANT,
and #f."
  (if (and (not (equal? variant "latin"))
           (not (member (list layout variant) %latin-layout+variants))
           (or (member layout %non-latin-layouts)
               (member variant %non-latin-variants)))
      (let ((latin-layout (if (equal? variant "azerty") "fr" "us")))
        (list
         (string-append layout "," latin-layout)
         ;; Comma to use variant only for non-Latin:
         (and variant (string-append variant ","))
         "grp:alt_shift_toggle"))
      (list layout variant #f)))

(define* (run-keymap-page layouts #:key context dry-run?)
  "Run a page asking the user to select a keyboard layout and variant. LAYOUTS
is a list of supported X11-KEYMAP-LAYOUT.  For non-Latin keyboard layouts, a
second layout and toggle options will be added automatically.  Return a list
of three elements, the names of the selected keyboard layout, variant and
options."
  (define keymap-steps
    (list
     (installer-step
      (id 'layout)
      (compute
       (lambda _
         (run-layout-page
          (sort-layouts layouts)
          (lambda (layout)
            (gettext (x11-keymap-layout-description layout)
                     "xkeyboard-config"))
          context))))
     ;; Propose the user to select a variant among those supported by the
     ;; previously selected layout.
     (installer-step
      (id 'variant)
      (compute
       (lambda (result _)
         (let* ((layout (result-step result 'layout))
                (variants (if layout
                              (x11-keymap-layout-variants layout)
                              '())))
           ;; Return #f if the layout does not have any variant.
           (and (not (null? variants))
                (run-variant-page
                 (sort-variants (add-empty-variant variants))
                 (lambda (variant)
                   (if variant
                       (gettext (x11-keymap-variant-description variant)
                                "xkeyboard-config")
                       ;; Text to opt for no variant at all:
                       (gettext (x11-keymap-layout-description layout)
                                "xkeyboard-config")))))))))))

  (define (format-result layout variant)
    (let ((layout (x11-keymap-layout-name layout))
          (variant (and=> variant
                          (lambda (variant)
                            (gettext (x11-keymap-variant-name variant)
                                     "xkeyboard-config")))))
      (toggleable-latin-layout layout variant)))

  (let* ((result (run-installer-steps #:steps keymap-steps #:dry-run? dry-run?))
         (layout (result-step result 'layout))
         (variant (result-step result 'variant)))
    (and layout
         (format-result layout variant))))

(define (keyboard-layout->configuration keymap)
  "Return the operating system configuration snippet to install KEYMAP."
  (match keymap
    ((name #f "grp:alt_shift_toggle")
     `((keyboard-layout (keyboard-layout ,name
                                         #:options '("grp:alt_shift_toggle")))))
    ((name #f _)
     `((keyboard-layout (keyboard-layout ,name))))
    ((name variant "grp:alt_shift_toggle")
     `((keyboard-layout (keyboard-layout ,name ,variant
                                         #:options '("grp:alt_shift_toggle")))))
    ((name variant _)
     `((keyboard-layout (keyboard-layout ,name ,variant))))))