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;;; jao-wayland.el --- interacting with wayland compositors -*- lexical-binding: t; -*-
;; Copyright (C) 2022 jao
;; Author: jao <mail@jao.io>
;; Keywords: convenience
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
(require 'jao-shell)
(require 'jao-pdf)
(require 'jao-tracking)
;;; wayland
(defvar jao-wayland-enabled
(string= "wayland" (or (getenv "XDG_SESSION_TYPE") "")))
(defsubst jao-wayland-type (&rest args)
(apply #'jao-shell-exec* t "wtype" args))
;;; river
(defvar jao-river-enabled (jao-shell-running-p "river"))
(defun jao-river-enabled-p () jao-river-enabled)
(defsubst jao-river-to-ws (n)
(jao-wayland-type "-M" "win" (format "%s" n)))
(defsubst jao-river-window-list ()
(jao-shell-output "lswt -j" (lambda () (let ((json-false nil)) (json-read)))))
(defun jao-river-focused ()
(seq-some (lambda (w) (and (alist-get 'activated w) w))
(jao-river-window-list)))
(defsubst jao-river-get-focused-title ()
(alist-get 'title (jao-river-focused)))
(defun jao-river-focus-window (title &optional rx)
(let* ((ws (jao-river-window-list))
(fltr (if rx #'string-match-p #'string=) )
(w (seq-find (lambda (w) (funcall fltr title (alist-get 'title w "")))
ws)))
(or (alist-get 'activated w)
(seq-some (lambda (_ignored)
(jao-shell-exec "riverctl focus-view next" t)
(funcall fltr title (jao-river-get-focused-title)))
(and w ws)))))
(defun jao-river-zathura-to-org ()
(let ((title (jao-river-get-focused-title)))
(jao-river-to-ws 1)
(jao-pdf-goto-zathura-org title t)))
(defun jao-river-zathura-kill-link ()
(when-let* ((title (jao-river-get-focused-title))
(lnk (jao-pdf-zathura-org-link title)))
(jao-river-to-ws 1)
(kill-new lnk)
(message "Link to %s killed" title)))
(defun jao-river-find-zathura-window (file)
(let ((frx (regexp-quote (file-name-nondirectory file))))
(seq-some (lambda (w)
(and (string-suffix-p ".zathura" (alist-get 'app_id w ""))
(string-match-p frx (alist-get 'title w ""))
w))
(jao-river-window-list))))
(defun jao-river-open-with-zathura (file page)
(let ((wd (jao-river-find-zathura-window file)))
(jao-river-to-ws 3)
(or (and wd (jao-river-focus-window (alist-get 'title wd)))
(jao-shell-exec* "riverctl" "spawn" (jao-pdf-zathura-open-cmd file page)))
(when page (sit-for 0.2) (jao-wayland-type (format "%dg" page)))))
(defun jao-river-set-wallpaper (f)
(jao-shell-exec (concat "swaybg -m fill -i " f " &")))
(defun jao-river-restart-i3bar ()
(interactive)
(jao-shell-kill-p "i3bar-river")
(jao-shell-exec "riverctl spawn i3bar-river")
(sit-for 0.2)
(jao-tracking-set-log ""))
(defun jao-river-toggle-emacs ()
(if (member (jao-river-get-focused-title) '("emacsclient" "emacs"))
(jao-shell-exec "riverctl focus-previous-tags")
(jao-river-to-ws 1)
(unless (jao-river-focus-window "^emacs\\(client\\)?" t)
(jao-shell-exec* "riverctl" "spawn" "efoot"))))
;;; sway
(defun jao-sway-msg (msg)
(shell-command (format "swaymsg '%s' >/dev/null" msg)))
(defmacro jao-def-swaymsg (name msg)
`(defun ,(intern (format "jao-sway-%s" name)) ()
(interactive)
(jao-sway-msg ,msg)))
(jao-def-swaymsg firefox "[app_id=Firefox] focus")
(defvar jao-sway-enabled (jao-shell-running-p "sway"))
(defconst jao-sway-get-active-title
"swaymsg -t get_tree | jq '.. | select(.type?) | select(.focused==true).name'")
(defun jao-sway-get-active-title ()
(let ((tl (jao-shell-string jao-sway-get-active-title)))
(and (string-match "\"\\(.+\\)\"" tl) (match-string 1 tl))))
(defun jao-sway-zathura-org ()
(jao-pdf-goto-zathura-org (jao-sway-get-active-title) t))
(defun jao-sway-open-with-zathura (file page)
(let ((n (file-name-nondirectory file)))
(jao-sway-msg "workspace number 3")
(unless (= 0 (jao-sway-msg (format "[title=\"%s\"] focus" n)))
(jao-shell-exec (jao-pdf-zathura-open-cmd file page)))
(when page (sit-for 0.2) (jao-wayland-type (format "%dg" page)))))
(defun jao-sway-set-wallpaper (f)
(jao-sway-msg (format "output * bg %s fill" f)))
(defun jao-sway-run-or-focus (cmd &optional ws)
(if (jao-shell-running-p "firefox")
(jao-sway-msg (format "[app_id=%s] focus" cmd))
(jao-sway-msg (format "workspace %s" (or ws 2)))
(start-process-shell-command cmd nil cmd)))
(defun jao-sway-run-or-focus-firefox ()
(interactive)
(jao-sway-run-or-focus "firefox"))
(provide 'jao-wayland)
;;; jao-wayland.el ends here
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