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;;; feebleline.el --- Replace modeline with a slimmer proxy
;; Copyright 2018 Benjamin Lindqvist
;; Author: Benjamin Lindqvist <benjamin.lindqvist@gmail.com>
;; Maintainer: Benjamin Lindqvist <benjamin.lindqvist@gmail.com>
;; URL: https://github.com/tautologyclub/feebleline
;; Package-Version:
;; Version: 1.0
;; This file is not part of GNU Emacs.
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; For hardline Luddite editing!
;; Feebleline removes the modeline and replaces it with a slimmer proxy
;; version, which displays some basic information in the echo area
;; instead. This information is only displayed if the echo area is not used
;; for anything else (but if you switch frame/window, it will replace whatever
;; message is currently displayed).
;; To customize feebleline's format, modify `feebleline-mode-line-text'.
;; NOTE:
;; feebleline.el will look considerably better with the following
;; settings:
;; (window-divider-mode t)
;; (setq window-divider-default-bottom-width 1)
;; (setq window-divider-default-places (quote bottom-only))
;; But this mode does not work for all EMACS versions and may not work with
;; terminal EMACS (but I haven't checked). If you're on GUI EMACS and your
;; version supports it, just place the following in your init file:
;; (feebleline-default-settings)
;; Otherwise, do (feebleline-mode t) instead, but be warned that I'm not sure
;; if it will look good.
;;; Code:
(require 'advice)
(defvar feebleline/mode-line-format-default)
(defvar feebleline/timer)
(defvar feebleline-mode-line-text
'(("[%s] " ((format-time-string "%H:%M:%S")) (face font-lock-comment-face))
("%s/%s " ((string-to-number (format-mode-line "%l"))
(current-column)))
("@ %s " ((buffer-file-name))))
"Each element is a list with the following format:
(FORMAT-STRING FORMAT-ARGS PROPS)
FORMAT-STRING will be used as the first argument to `format', and
FORMAT-ARGS (a list) will be expanded as the rest of `format'
arguments. If PROPS is given, it should be a list which will be
sent to `add-text-properties'.")
(defun feebleline-default-settings ()
"Some default settings that works well with feebleline."
(custom-set-variables
'(window-divider-default-bottom-width 1)
'(window-divider-default-places (quote bottom-only)))
(window-divider-mode t)
(feebleline-mode t))
(define-minor-mode feebleline-mode
"Replace modeline with a slimmer proxy."
:global t
(if feebleline-mode
(progn
(setq feebleline/mode-line-format-default mode-line-format)
(setq feebleline/timer (run-with-timer 0 0.1 'feebleline-mode-line-proxy-fn))
(custom-set-variables '(mode-line-format nil))
(ad-activate 'handle-switch-frame)
(add-hook 'focus-in-hook 'feebleline-mode-line-proxy-fn))
(custom-set-variables
'(mode-line-format feebleline/mode-line-format-default))
(cancel-timer feebleline/timer)
(ad-deactivate 'handle-switch-frame)
(remove-hook 'focus-in-hook 'feebleline-mode-line-proxy-fn)))
(defun feebleline--mode-line-part (part)
"Return a PART (an element) of `feebleline-mode-line-text` as a propertized string."
(let ((text (apply #'format (append (list (car part))
(mapcar #'eval (cadr part)))))
(props (elt part 2)))
(when props
(add-text-properties 0 (length text) props text))
text))
(defun feebleline-message-buffer-file-name-or-nothing ()
"Replace echo-area message with mode-line proxy."
(when buffer-file-name
(let ((message-log-max nil))
(message (mapconcat #'feebleline--mode-line-part feebleline-mode-line-text "")))))
(defun feebleline-mode-line-proxy-fn ()
"Put a mode-line proxy in the echo area *if* echo area is empty."
(unless (current-message)
(feebleline-message-buffer-file-name-or-nothing)))
(defadvice handle-switch-frame (after switch-frame-message-name)
"Get the modeline proxy to work with i3 switch focus."
(feebleline-message-buffer-file-name-or-nothing)
ad-do-it
(feebleline-message-buffer-file-name-or-nothing))
(provide 'feebleline)
;;; feebleline.el ends here
|
