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;; Configure additional settings if this is one of my NixOS machines
;; (i.e. if ExWM is required)
;; -*- lexical-binding: t; -*-
(require 's)
(require 'f)
(require 'dash)
(defvar is-nixos
(let ((os-f "/etc/os-release"))
(s-contains?
"NixOS" (if (f-file? os-f) (f-read os-f)))))
(defun pulseaudio-ctl (cmd)
(shell-command (concat "pulseaudio-ctl " cmd))
(message "Volume command: %s" cmd))
(defun volume-mute () (interactive) (pulseaudio-ctl "mute"))
(defun volume-up () (interactive) (pulseaudio-ctl "up"))
(defun volume-down () (interactive) (pulseaudio-ctl "down"))
(defun brightness-up ()
(interactive)
(shell-command "exec light -A 10")
(message "Brightness increased"))
(defun brightness-down ()
(interactive)
(shell-command "exec light -U 10")
(message "Brightness decreased"))
(defun lock-screen ()
(interactive)
(shell-command "i3lock"))
(defun generate-randr-config ()
(-flatten `(,(-map (lambda (n) (list n "DP2")) (number-sequence 1 5))
(0 "eDP1")
,(-map (lambda (n) (list n "eDP1")) (number-sequence 6 9)))))
(if is-nixos
(progn
(message "Running on NixOS, configuring ExWM.")
(require 'exwm)
(require 'exwm-config)
(require 'exwm-randr)
(fringe-mode 3)
(setq exwm-workspace-number 2)
;; Make class name the buffer name
(add-hook 'exwm-update-class-hook
(lambda ()
(exwm-workspace-rename-buffer exwm-class-name)))
;; 's-r': Reset
(exwm-input-set-key (kbd "s-r") #'exwm-reset)
;; 's-w': Switch workspace
(exwm-input-set-key (kbd "s-w") #'exwm-workspace-switch)
;; 's-N': Switch to certain workspace
(dotimes (i 10)
(exwm-input-set-key (kbd (format "s-%d" i))
`(lambda ()
(interactive)
(exwm-workspace-switch-create ,i))))
;; Launch applications with completion (dmenu style!)
(exwm-input-set-key (kbd "s-d") #'helm-run-external-command)
(exwm-input-set-key (kbd "s-p") #'ivy-pass)
;; Toggle between line-mode / char-mode
(exwm-input-set-key (kbd "C-c C-t C-t") #'exwm-input-toggle-keyboard)
;; Volume keys
(exwm-input-set-key (kbd "<XF86AudioMute>") #'volume-mute)
(exwm-input-set-key (kbd "<XF86AudioRaiseVolume>") #'volume-up)
(exwm-input-set-key (kbd "<XF86AudioLowerVolume>") #'volume-down)
;; Brightness keys
(exwm-input-set-key (kbd "<XF86MonBrightnessDown>") #'brightness-down)
(exwm-input-set-key (kbd "<XF86MonBrightnessUp>") #'brightness-up)
(exwm-input-set-key (kbd "<XF86Display>") #'lock-screen)
;; Line-editing shortcuts
(exwm-input-set-simulation-keys
'(([?\C-d] . delete)
([?\C-w] . ?\C-c)))
;; Enable EXWM
(exwm-enable)
;; Show time in the mode line
(display-time-mode)
;; Another attempt at xrandr configuration
(setq exwm-randr-workspace-output-plist (generate-randr-config))
(exwm-randr-enable)
;; Let buffers move seamlessly between workspaces
(setq exwm-workspace-show-all-buffers t)
(setq exwm-layout-show-all-buffers t)))
(provide 'nixos)
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