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authorLudovic Courtès <ludo@gnu.org>2019-04-28 21:43:35 +0200
committerLudovic Courtès <ludo@gnu.org>2019-04-28 22:57:07 +0200
commit7253c2b6297f85ec94512a2cff39ab25df043ad9 (patch)
tree0bdd892538d284e691e7daad08d9e7e8cb30f7af /gnu/installer
parent0fe169220050db9eb0b271e2afebe70ccd070ab9 (diff)
downloadguix-7253c2b6297f85ec94512a2cff39ab25df043ad9.tar.gz
guix-7253c2b6297f85ec94512a2cff39ab25df043ad9.zip
installer: Add #:selection parameter to 'run-checkbox-tree-page'.
* gnu/installer/newt/page.scm (%none-selected): New variable. (run-checkbox-tree-page): Add #:selection. [fill-checkbox-tree]: Honor it.
Diffstat (limited to 'gnu/installer')
-rw-r--r--gnu/installer/newt/page.scm22
1 files changed, 15 insertions, 7 deletions
diff --git a/gnu/installer/newt/page.scm b/gnu/installer/newt/page.scm
index e9514e110f..3173d54737 100644
--- a/gnu/installer/newt/page.scm
+++ b/gnu/installer/newt/page.scm
@@ -437,10 +437,14 @@ error is raised if the MAX-SCALE-UPDATE limit is reached."
(lambda ()
(destroy-form-and-pop form)))))
+(define %none-selected
+ (circular-list #f))
+
(define* (run-checkbox-tree-page #:key
info-text
title
items
+ (selection %none-selected)
item->text
(info-textbox-width 50)
(checkbox-tree-height 10)
@@ -453,7 +457,8 @@ a checkbox list. The page contains vertically stacked from the top to the
bottom, an informative text set to INFO-TEXT, the checkbox list and two
buttons, 'Ok' and 'Exit'. The page title's is set to TITLE. ITEMS are
converted to text using ITEM->TEXT before being displayed in the checkbox
-list.
+list. SELECTION is a list of Booleans of the same length as ITEMS that
+specifies which items are initially checked.
INFO-TEXTBOX-WIDTH is the width of the textbox where INFO-TEXT will be
displayed. CHECKBOX-TREE-HEIGHT is the height of the checkbox list.
@@ -465,12 +470,15 @@ pressed.
This procedure returns the list of checked items in the checkbox list among
ITEMS when 'Ok' is pressed."
(define (fill-checkbox-tree checkbox-tree items)
- (map
- (lambda (item)
- (let* ((item-text (item->text item))
- (key (add-entry-to-checkboxtree checkbox-tree item-text 0)))
- (cons key item)))
- items))
+ (map (lambda (item selected?)
+ (let* ((item-text (item->text item))
+ (key (add-entry-to-checkboxtree checkbox-tree item-text
+ (if selected?
+ FLAG-SELECTED
+ 0))))
+ (cons key item)))
+ items
+ selection))
(let* ((checkbox-tree
(make-checkboxtree -1 -1