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;;; ~/.exwm -*- mode: emacs-lisp; lexical-binding: t; -*-
(require 'exwm-systemtray)
;;; Functions
(defun exwm-spawn (command)
(interactive (list (read-shell-command "$ ")))
(start-process-shell-command command nil command))
(defun ^exwm-spawn (command)
(lambda () (interactive) (exwm-spawn command)))
(defun exwm-autostart (command)
(start-process-shell-command
(format "<autostart> %s" command) " *autostart*" command))
(defun run-or-raise (command &optional buffer-name)
"Raise BUFFER-NAME if it exists, else run COMMAND.
BUFFER-NAME defaults to the first word of COMMAND."
(let ((buffer-name (or buffer-name (car (string-split command)))))
(if (buffer-live-p (get-buffer buffer-name))
(switch-to-buffer buffer-name)
(exwm-spawn command))))
(defun ^run-or-raise (command)
(lambda () (interactive) (run-or-raise command)))
;; Wifi info
(defun dBm->perc (dBm)
(truncate (+ (- (/ (* dBm dBm) 105.0))
(/ dBm 21.0)
100)))
(defun %wifi-info ()
(let (ssid dBm signal)
(with-temp-buffer
(call-process "iw" nil t nil "dev" "wlan0" "link")
(goto-char (point-min))
(setq ssid (progn (search-forward "SSID: " nil t)
(buffer-substring (point)
(pos-eol))))
(setq dBm (progn (search-forward "signal: " nil t)
(string-to-number
(buffer-substring (point)
(progn (forward-word)
(point))))))
(setq signal (dBm->perc dBm))
(list ssid signal dBm))))
(defun wifi-info ()
(interactive)
(apply #'message "Connected to `%s' at %s%% (%s dBm)"
(%wifi-info)))
(defvar display-wifi-info-timer nil)
(defvar display-wifi-info-string "")
(defun display-wifi-info-update ()
(setq display-wifi-info-string
(let ((info (%wifi-info)))
(format " [🛜%s%%]" (cadr info))))
(force-mode-line-update 'all))
(define-minor-mode display-wifi-info-mode
"Toggle display of wifi connection status in mode line."
:global t
(cond
(display-wifi-info-mode
(or (memq 'display-wifi-info-string global-mode-string)
(setq global-mode-string
(append global-mode-string '(display-wifi-info-string))))
(setq display-wifi-info-timer
(run-with-timer 0 30 #'display-wifi-info-update)))
(t (and (timerp display-wifi-info-timer)
(cancel-timer display-wifi-info-timer))
(setq display-wifi-info-timer nil)
(setq display-wifi-info-string nil))))
;;; Options
(setopt exwm-workspace-number 4)
;; Tab bar
(tab-bar-mode)
(setopt tab-bar-show t)
(setopt tab-bar-format
'(tab-bar-format-tabs
tab-bar-format-align-right
tab-bar-format-global))
(setopt tab-bar-close-button-show nil)
;; System information
(setopt display-time-default-load-average nil)
(setopt display-time-format "%e %a %R")
(setopt battery-mode-line-format "[🔋%b%p%]")
(display-wifi-info-mode)
(display-battery-mode)
(display-time-mode)
;; Must come after the above
(setopt global-mode-string
'("" jabber-activity-mode-string
display-wifi-info-string
" " battery-mode-line-string
" " (:propertize ("" display-time-string)
face tab-bar-tab)))
;;; Window management
(after exwm-mode-hook
(setq-local mode-line-format nil))
(after exwm-update-class-hook
(exwm-workspace-rename-buffer exwm-class-name))
;;; Keys
(setopt exwm-input-global-keys
`(;; Command shortcuts
([?\s-p] . ,(^run-or-raise "keepassxc"))
([?\s-b] . ,(^run-or-raise "firefox"))
;; 's-r': Reset (to line-mode).
([?\s-r] . exwm-reset)
;; 's-w': Bury buffer (I honestly don't really use workspaces)
([?\s-w] . bury-buffer)
([?\s-o] . other-window-dwim)
;; 's-&': Launch application.
([?\s-&] . exwm-spawn)))
(setopt exwm-input-simulation-keys
'(([?\C-b] . [left])
([?\C-f] . [right])
([?\C-p] . [up])
([?\C-n] . [down])
([?\C-a] . [home])
([?\C-e] . [end])
([?\M-v] . [prior])
([?\C-v] . [next])
([?\C-d] . [delete])
([?\C-k] . [S-end delete])
([?\M-w] . [?\C-c])
([?\C-w] . [?\C-x])
([?\C-y] . [?\C-v])))
;;; Startup
;; Start exwm
(exwm-enable)
(exwm-systemtray-enable)
;; Start other stuff
(after init
(exwm-autostart "nextcloud")
(exwm-autostart "dunst"))
;; Turn off debug mode
(setopt toggle-debug-on-error nil)
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