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| -rw-r--r-- | doc/guix.texi | 41 | ||||
| -rw-r--r-- | gnu/home/services/desktop.scm | 57 |
2 files changed, 98 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 0a965f53c0..edf410d024 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -42626,6 +42626,47 @@ A timeout in seconds after which to hide cursor. @end deftp +@defvar home-xmodmap-service-type +This is the service type for the +@uref{https://gitlab.freedesktop.org/xorg/app/xmodmap,xmodmap} utility +to modify keymaps and pointer button mappings under the Xorg display +server. Its associated value must be a +@code{home-xmodmap-configuration} record, as shown below. + +The @code{key-map} field takes a list of objects, each of which is +either a @dfn{statement} (a string) or an @dfn{assignment} (a pair of +strings). As an example, the snippet below swaps around the +@kbd{Caps_Lock} and the @kbd{Control_L} keys, by first removing the +keysyms (on the right-hand side) from the corresponding modifier maps +(on the left-hand side), re-assigning them by swapping each other out, +and finally adding back the keysyms to the modifier maps. + +@lisp +(service home-xmodmap-service-type + (home-xmodmap-configuration + (key-map '(("remove Lock" . "Caps_Lock") + ("remove Control" . "Control_L") + ("keysym Control_L" . "Caps_Lock") + ("keysym Caps_Lock" . "Control_L") + ("add Lock" . "Caps_Lock") + ("add Control" . "Control_L"))))) +@end lisp +@end defvar + +@deftp {Data Type} home-xmodmap-configuration +The configuration record for @code{home-xmodmap-service-type}. Its +available fields are: + +@table @asis +@item @code{xmodmap} (default: @code{xmodmap}) (type: file-like) +The @code{xmodmap} package to use. + +@item @code{key-map} (default: @code{'()}) (type: list) +The list of expressions to be read by @code{xmodmap} on service startup. + +@end table +@end deftp + @node Guix Home Services @subsection Guix Home Services diff --git a/gnu/home/services/desktop.scm b/gnu/home/services/desktop.scm index ab2b871539..fb1cd44060 100644 --- a/gnu/home/services/desktop.scm +++ b/gnu/home/services/desktop.scm @@ -24,6 +24,7 @@ #:use-module (gnu services configuration) #:autoload (gnu packages glib) (dbus) #:autoload (gnu packages xdisorg) (redshift unclutter) + #:autoload (gnu packages xorg) (setxkbmap xmodmap) #:use-module (guix records) #:use-module (guix gexp) #:use-module (srfi srfi-1) @@ -275,3 +276,59 @@ according to time of day."))) (description "Run the @code{unclutter} daemon, which, on systems using the Xorg graphical display server, automatically hides the cursor after a user-defined timeout has expired."))) + + +;;; +;;; Xmodmap. +;;; + +(define-configuration/no-serialization home-xmodmap-configuration + (xmodmap + (file-like xmodmap) + "The @code{xmodmap} package to use.") + (key-map + (list '()) + "List of expressions to be read by @code{xmodmap} on service startup.")) + +(define (serialize-xmodmap-configuration field-name val) + (define serialize-field + (match-lambda + ((key . value) + (format #f "~a = ~a" key value)) + (e e))) + + #~(string-append + #$@(interpose (map serialize-field val) "\n" 'suffix))) + +(define (xmodmap-shepherd-service config) + (define config-file + (mixed-text-file + "config" + (serialize-xmodmap-configuration + #f (home-xmodmap-configuration-key-map config)))) + + (list + (shepherd-service + (provision '(xmodmap)) + (start #~(make-system-constructor + (string-join + (list #$(file-append + (home-xmodmap-configuration-xmodmap config) + "/bin/xmodmap") + #$config-file)))) + (stop #~(make-system-constructor + #$(file-append setxkbmap "/bin/setxkbmap"))) + (documentation "On startup, run @code{xmodmap} and read the expressions in +the configuration file. On stop, reset all the mappings back to the +defaults.")))) + +(define home-xmodmap-service-type + (service-type + (name 'home-xmodmap) + (extensions + (list + (service-extension home-shepherd-service-type + xmodmap-shepherd-service))) + (default-value (home-xmodmap-configuration)) + (description "Run the @code{xmodmap} utility to modify keymaps and pointer +buttons under the Xorg display server via user-defined expressions."))) |