121 lines
4.2 KiB
EmacsLisp
121 lines
4.2 KiB
EmacsLisp
;;;; Imeks: Use Emacs as your Xorg pseudo-IME!
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;; Copyright © 2024 Jaidyn Ann <jadedctrl@posteo.at>
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;;
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;; This program is free software: you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation, either version 3 of
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;; the License, or (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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(define-minor-mode imeks-mode
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"A mode for typing the contents of an Emacs buffer into X windows."
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:interactive nil
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:lighter " Imeks"
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:group 'imeks)
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;;; Options
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;;; ―――――――――――――――――――――――――――――――――――――
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(defcustom imeks-mode-hook nil
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"Hook called when entering Imeks mode."
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:type 'hook
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:group 'imeks)
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(defcustom imeks-typing-delay .2
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"How long Imeks will wait before typing, by default.\n
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This gives you time to switch from Emacs' X window to another."
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:type 'number
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:group 'imeks)
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(defcustom imeks-xdotool-path "xdotool"
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"The path to the program xdotool.
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It is used by Imeks to mimic an X keyboard."
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:type 'file
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:group 'imeks)
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(defcustom imeks-type-on-frame-delete 't
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"When non-nil, Imeks may type the active buffer on frame-deletion.\n
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This will only happen if the buffer is in `imeks-mode`, and
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is for useful if you use frames dedicated to Imeks."
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:type 'boolean
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:group 'imeks)
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;;; Core
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;;; ―――――――――――――――――――――――――――――――――――――
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(defun imeks ()
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(interactive)
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(switch-to-buffer (generate-new-buffer "*imeks*"))
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(imeks-mode))
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(defun imeks-type-buffer (&optional buffer delay)
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"Types a buffer's contents, mimicking X keyboard input.\n
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Waits DELAY seconds before beginning to type, by default
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`imeks-typing-delay`."
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(interactive)
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(let ((buffer (or buffer (current-buffer))))
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(with-current-buffer buffer
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(imeks-type-region buffer (point-min) (point-max) delay))))
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(defun imeks-type-region (&optional buffer start end delay)
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"Types a region's contents, mimicking X keyboard input.\n
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Waits DELAY seconds before beginning to type, by default
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`imeks-typing-delay`."
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(interactive)
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(xdotool-type-string
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(with-current-buffer (or buffer (current-buffer))
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(buffer-substring-no-properties (or start (region-beginning))
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(or end (region-end))))
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(or delay imeks-typing-delay)))
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;;; Private hooks
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;;; ―――――――――――――――――――――――――――――――――――――
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(defun imeks--handle-delete-frame (frame)
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"When a frame is deleted and the current buffer is in
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`imeks-mode`, kill the buffer and type its contents as
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if an X keyboard."
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(when (and imeks-mode imeks-type-on-frame-delete)
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(let ((buffer-contents
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(buffer-substring-no-properties (point-min) (point-max))))
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(kill-buffer)
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(xdotool-type-string buffer-contents .2))))
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(nconc delete-frame-functions '(imeks--handle-delete-frame))
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;;
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;;; Util
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;;; ―――――――――――――――――――――――――――――――――――――
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(defun xdotool-type-string (string &optional delay)
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"Types a STRING to the current X display, using xdotool.\n
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Optionally waits a DELAY in seconds before typing the string."
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(let* ((sleep-cmd
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(format "sleep %f" (or delay 0)))
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(type-cmds
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(mapcar (lambda (line)
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(format "%s type \"$(cat <<'EOF'\n%s\nEOF\n)\""
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imeks-xdotool-path line))
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(string-lines string)))
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(type-cmd ; Work-around, since not all programs accept a typed newline.
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(seq-reduce (lambda (a b)
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(format "%s; %s key return; %s" a imeks-xdotool-path b))
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type-cmds ""))
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(cmd-string
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(concat sleep-cmd type-cmd)))
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(call-process "bash" nil 0 nil
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"-c" cmd-string)))
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(provide 'imeks)
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