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120 lines
4.4 KiB
Scheme
120 lines
4.4 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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;;;
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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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;;;
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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 welcome)
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#:use-module (gnu installer utils)
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#:use-module (gnu installer newt utils)
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#:use-module (guix build syscalls)
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#:use-module (guix i18n)
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#:use-module (ice-9 match)
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#:use-module (ice-9 receive)
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#:use-module (newt)
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#:export (run-welcome-page))
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;; Expected width and height for the logo.
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(define logo-width (make-parameter 43))
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(define logo-height (make-parameter 19))
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(define info-textbox-width (make-parameter 70))
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(define options-listbox-height (make-parameter 5))
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(define* (run-menu-page title info-text logo
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#:key
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listbox-items
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listbox-item->text)
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"Run a page with the given TITLE, to ask the user to choose between
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LISTBOX-ITEMS displayed in a listbox. The listbox items are converted to text
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using LISTBOX-ITEM->TEXT procedure. Display the textual LOGO in the center of
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the page. Contrary to other pages, we cannot resort to grid layouts, because
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we want this page to occupy all the screen space available."
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(define (fill-listbox listbox items)
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(map (lambda (item)
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(let* ((text (listbox-item->text item))
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(key (append-entry-to-listbox listbox text)))
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(cons key item)))
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items))
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(let* ((logo-textbox
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(make-textbox -1 -1 (logo-width) (logo-height) 0))
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(info-textbox
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(make-reflowed-textbox -1 -1
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info-text
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(info-textbox-width)))
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(options-listbox
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(make-listbox -1 -1
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(options-listbox-height)
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(logior FLAG-BORDER FLAG-RETURNEXIT)))
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(keys (fill-listbox options-listbox listbox-items))
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(grid (vertically-stacked-grid
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GRID-ELEMENT-COMPONENT logo-textbox
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GRID-ELEMENT-COMPONENT info-textbox
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GRID-ELEMENT-COMPONENT options-listbox))
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(form (make-form)))
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(set-textbox-text logo-textbox (read-all logo))
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(add-form-to-grid grid form #t)
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(make-wrapped-grid-window grid title)
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(receive (exit-reason argument)
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(run-form form)
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(dynamic-wind
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(const #t)
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(lambda ()
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(when (eq? exit-reason 'exit-component)
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(cond
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((components=? argument options-listbox)
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(let* ((entry (current-listbox-entry options-listbox))
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(item (assoc-ref keys entry)))
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(match item
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((text . proc)
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(proc))))))))
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(lambda ()
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(destroy-form-and-pop form))))))
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(define (run-welcome-page logo)
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"Run a welcome page with the given textual LOGO displayed at the center of
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the page. Ask the user to choose between manual installation, graphical
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installation and reboot."
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(run-menu-page
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(G_ "GNU Guix install")
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(G_ "Welcome to GNU Guix system installer!
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You will be guided through a graphical installation program.
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If you are familiar with GNU/Linux and you want tight control over \
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the installation process, you can instead choose manual installation. \
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Documentation is accessible at any time by pressing Ctrl-Alt-F2.")
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logo
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#:listbox-items
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`((,(G_ "Graphical install using a terminal based interface")
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.
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,(const #t))
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(,(G_ "Install using the shell based process")
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.
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,(lambda ()
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;; Switch to TTY3, where a root shell is available for shell based
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;; install. The other root TTY's would have been ok too.
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(system* "chvt" "3")
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(run-welcome-page logo)))
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(,(G_ "Reboot")
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.
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,(lambda ()
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(newt-finish)
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(reboot))))
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#:listbox-item->text car))
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