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Diffstat (limited to 'users/tazjin/emacs/config/desktop.el')
| -rw-r--r-- | users/tazjin/emacs/config/desktop.el | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/users/tazjin/emacs/config/desktop.el b/users/tazjin/emacs/config/desktop.el new file mode 100644 index 000000000000..bd7b4b5f6963 --- /dev/null +++ b/users/tazjin/emacs/config/desktop.el @@ -0,0 +1,334 @@ +;; -*- lexical-binding: t; -*- +;; +;; Configure desktop environment settings, including both +;; window-management (EXWM) as well as additional system-wide +;; commands. + +(require 'exwm) +(require 'exwm-config) +(require 'exwm-randr) +(require 'exwm-systemtray) +(require 'exwm-xim ) +(require 'f) +(require 'ring) +(require 's) +(require 'seq) + +(defcustom tazjin--screen-lock-command "tazjin-screen-lock" + "Command to execute for locking the screen." + :group 'tazjin) + +(defcustom tazjin--backlight-increase-command "light -A 4" + "Command to increase screen brightness." + :group 'tazjin) + +(defcustom tazjin--backlight-decrease-command "light -U 4" + "Command to decrease screen brightness." + :group 'tazjin) + +(defun pactl (cmd) + (shell-command (concat "pactl " cmd)) + (message "Volume command: %s" cmd)) + +(defun volume-mute () (interactive) (pactl "set-sink-mute @DEFAULT_SINK@ toggle")) +(defun volume-up () (interactive) (pactl "set-sink-volume @DEFAULT_SINK@ +5%")) +(defun volume-down () (interactive) (pactl "set-sink-volume @DEFAULT_SINK@ -5%")) + +(defun brightness-up () + (interactive) + (shell-command tazjin--backlight-increase-command) + (message "Brightness increased")) + +(defun brightness-down () + (interactive) + (shell-command tazjin--backlight-decrease-command) + (message "Brightness decreased")) + +(defun set-xkb-layout (layout) + "Set the current X keyboard layout." + + (shell-command (format "setxkbmap %s" layout)) + (shell-command "setxkbmap -option caps:super") + (message "Set X11 keyboard layout to '%s'" layout)) + +(defun lock-screen () + (interactive) + (set-xkb-layout "us") + (deactivate-input-method) + (shell-command tazjin--screen-lock-command)) + +(defun create-window-name () + "Construct window names to be used for EXWM buffers by + inspecting the window's X11 class and title. + + A lot of commonly used applications either create titles that + are too long by default, or in the case of web + applications (such as Cider) end up being constructed in + awkward ways. + + To avoid this issue, some rewrite rules are applied for more + human-accessible titles." + + (pcase (list (or exwm-class-name "unknown") (or exwm-title "unknown")) + ;; Yandex.Music -> `Я.Music<... stuff ...>' + (`("Chromium-browser" ,(and (pred (lambda (title) (s-starts-with? "Yandex.Music - " title))) title)) + (format "Я.Music<%s>" (s-chop-prefix "Yandex.Music - " title))) + + ;; For other Chromium windows, make the title shorter. + (`("Chromium-browser" ,title) + (format "Chromium<%s>" (s-truncate 42 (s-chop-suffix " - Chromium" title)))) + + ;; similarly for Firefox + (`("firefox" ,title) + (format "FF<%s>" title)) + + ;; Quassel buffers + ;; + ;; These have a title format that looks like: + ;; "Quassel IRC - #tvl (hackint) — Quassel IRC" + (`("quassel" ,title) + (progn + (if (string-match + (rx "Quassel IRC - " + (group (one-or-more (any alnum "[" "]" "&" "-" "#"))) ;; <-- channel name + " (" (group (one-or-more (any ascii space))) ")" ;; <-- network name + " — Quassel IRC") + title) + (format "Quassel<%s>" (match-string 2 title)) + title))) + + ;; For any other application, a name is constructed from the + ;; window's class and name. + (`(,class ,title) (format "%s<%s>" class (s-truncate 12 title))))) + +;; EXWM launch configuration + +(let ((titlef (lambda () + (exwm-workspace-rename-buffer (create-window-name))))) + (add-hook 'exwm-update-class-hook titlef) + (add-hook 'exwm-update-title-hook titlef)) + +(fringe-mode 3) + +;; tab-bar related config +(setq tab-bar-show 1) +(setq tab-bar-tab-hints t) + +(setq tab-bar-format + '(tab-bar-format-history + tab-bar-format-tabs tab-bar-separator + tab-bar-format-align-right tab-bar-format-global)) + +(setq tab-bar-new-tab-choice + (lambda () (get-buffer-create "*scratch*"))) + +(tab-bar-mode 1) + +(setq x-no-window-manager t) ;; TODO(tazjin): figure out when to remove this +(exwm-enable) +(exwm-randr-enable) + +;; Tab-management shortcuts + +(defun tab-bar-select-or-return () + "This function behaves like `tab-bar-select-tab', except it calls +`tab-recent' if asked to jump to the current tab. This simulates +the back&forth behaviour of i3." + (interactive) + (let* ((key (event-basic-type last-command-event)) + (tab (if (and (characterp key) (>= key ?1) (<= key ?9)) + (- key ?0) + 0)) + (current (1+ (tab-bar--current-tab-index)))) + (if (eq tab current) + (tab-recent) + (tab-bar-select-tab tab)))) + +(dotimes (i 8) + (exwm-input-set-key (kbd (format "s-%d" (+ 1 i))) #'tab-bar-select-or-return)) + +(exwm-input-set-key (kbd "s-9") #'tab-last) +(exwm-input-set-key (kbd "s-f") #'tab-next) +(exwm-input-set-key (kbd "s-b") #'tab-recent) +(exwm-input-set-key (kbd "s-w") #'tab-close) +(exwm-input-set-key (kbd "s-n") #'tab-new) + +;; Launch applications / any command with completion (dmenu style!) +(exwm-input-set-key (kbd "s-d") #'run-xdg-app) +(exwm-input-set-key (kbd "s-x") #'run-external-command) +(exwm-input-set-key (kbd "s-p") #'password-store-lookup) + +;; Add vterm selector to a key +(exwm-input-set-key (kbd "s-v") #'ts/switch-to-terminal) + +;; 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) + +;; Shortcuts for switching between keyboard layouts +(defmacro bind-xkb (lang key) + `(exwm-input-set-key (kbd (format "s-%s" ,key)) + (lambda () + (interactive) + (set-xkb-layout ,lang)))) + +(bind-xkb "us" "k u") +(bind-xkb "de" "k d") +(bind-xkb "no" "k n") +(bind-xkb "ru" "k r") +(bind-xkb "se" "k s") +(bind-xkb "us" "л г") +(bind-xkb "de" "л в") +(bind-xkb "no" "л т") +(bind-xkb "ru" "л к") + +;; Configuration of EXWM input method handling for X applications +(exwm-xim-enable) +(setq default-input-method "russian-computer") +(push ?\C-\\ exwm-input-prefix-keys) + +;; Line-editing shortcuts +(exwm-input-set-simulation-keys + '(([?\C-d] . delete) + ([?\C-w] . ?\C-c))) + +;; Show time & battery status in the mode line +(display-time-mode) +(display-battery-mode) + +;; enable display of X11 system tray within Emacs +(exwm-systemtray-enable) + +;; Multi-monitor configuration. +;; +;; With tab-bar-mode, each monitor only displays at most one +;; workspace. Workspaces are only created, never deleted, meaning that +;; the number of workspaces will be equivalent to the maximum number +;; of displays that were connected during a session. +;; +;; The first workspace is special: It is kept on the primary monitor. + +(defun exwm-assign-workspaces () + "Assigns workspaces to the currently existing monitors, putting +the first one on the primary display and allocating the others +dynamically if needed in no particular order." + (interactive) + (let* ((randr-monitors (exwm-randr--get-monitors)) + (primary (car randr-monitors)) + (all-monitors (seq-map #'car (cadr randr-monitors))) + (sorted-primary-first (seq-sort (lambda (a b) + (or (equal a primary) + (< a b))) + all-monitors)) + ;; assign workspace numbers to each monitor ... + (workspace-assignments + (flatten-list (seq-map-indexed (lambda (monitor idx) + (list idx monitor)) + sorted-primary-first)))) + ;; ensure that the required workspaces exist + (exwm-workspace-switch-create (- (seq-length all-monitors) 1)) + + ;; update randr config + (setq exwm-randr-workspace-monitor-plist workspace-assignments) + (exwm-randr-refresh) + + ;; leave focus on primary workspace + (exwm-workspace-switch 0))) + +(defun list-available-monitors () + "List connected, but unused monitors." + (let* ((all-connected + (seq-map (lambda (line) (car (s-split " " line))) + (s-lines (s-trim (shell-command-to-string "xrandr | grep connected | grep -v disconnected"))))) + (all-active (seq-map #'car (cadr (exwm-randr--get-monitors))))) + (seq-filter (lambda (s) (not (seq-contains-p all-active s))) + all-connected))) + +(defun exwm-enable-monitor () + "Interactively construct an EXWM invocation that enable the +given monitor and assigns a workspace to it." + (interactive) + + (let* ((monitors (list-available-monitors)) + (primary (car (exwm-randr--get-monitors))) + (monitor (pcase (seq-length monitors) + (0 (error "No available monitors.")) + (1 (car monitors)) + (_ + (completing-read "Which monitor? " (list-available-monitors) nil t)))) + + (configurations `(("secondary (left)" . ,(format "--left-of %s" primary)) + ("secondary (right)" . ,(format "--right-of %s" primary)) + ("primary (left)" . ,(format "--left-of %s --primary" primary)) + ("primary (right)" . ,(format "--right-of %s --primary" primary)) + ("mirror" . ,(format "--same-as %s" primary)))) + + (where (completing-read (format "%s should be " monitor) + (seq-map #'car configurations) + nil t)) + (xrandr-pos (cdr (assoc where configurations))) + (xrandr-cmd (format "xrandr --output %s --auto %s" monitor xrandr-pos))) + (message "Invoking '%s'" xrandr-cmd) + (shell-command xrandr-cmd) + (exwm-assign-workspaces))) + +(defun exwm-disable-monitor () + "Interactively choose a monitor to disable." + (interactive) + + (let* ((all (exwm-randr--get-monitors)) + (active (seq-map #'car (cadr all))) + (monitor (if (> (seq-length active) 1) + (completing-read "Disable which monitor? " active nil t) + (error "Only one monitor is active!"))) + + ;; If this monitor was primary, pick another active one instead. + (remaining (seq-filter (lambda (s) (not (equal s monitor))) active)) + (new-primary + (when (equal monitor (car all)) + (pcase (seq-length remaining) + (1 (car remaining)) + (_ (completing-read "New primary? " remaining nil t)))))) + + (when new-primary + (shell-command (format "xrandr --output %s --primary" new-primary))) + + (shell-command (format "xrandr --output %s --off" monitor)) + (exwm-assign-workspaces))) + +(defun exwm-switch-monitor () + "Switch focus to another monitor by name." + (interactive) + + ;; TODO: Filter out currently active? How to determine it? + (let* ((target (completing-read "Switch to monitor: " + (seq-map #'car (cadr (exwm-randr--get-monitors))) + nil t)) + (target-workspace + (cl-loop for (workspace screen) on exwm-randr-workspace-monitor-plist by #'cddr + when (equal screen target) return workspace))) + (exwm-workspace-switch target-workspace))) + +(exwm-input-set-key (kbd "s-m e") #'exwm-enable-monitor) +(exwm-input-set-key (kbd "s-m d") #'exwm-disable-monitor) +(exwm-input-set-key (kbd "s-m o") #'exwm-switch-monitor) + +;; Notmuch shortcuts as EXWM globals +;; (g m => gmail) +(exwm-input-set-key (kbd "s-g m") #'notmuch) + +;; Let buffers move seamlessly between workspaces by making them +;; accessible in selectors on all frames. +(setq exwm-workspace-show-all-buffers t) +(setq exwm-layout-show-all-buffers t) + +(provide 'desktop) |