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| -rw-r--r-- | README.org | 5 | ||||
| -rw-r--r-- | header-info.el | 149 |
2 files changed, 154 insertions, 0 deletions
diff --git a/README.org b/README.org new file mode 100644 index 0000000..9381d0d --- /dev/null +++ b/README.org @@ -0,0 +1,5 @@ +* Header Info Mode + +This package provides the =header-info= minor mode to display parts of the normal modeline in the header line instead. + +It is inspired by [[https://www.reddit.com/r/emacs/comments/i3ff3n/weekly_tipstricketc_thread/g0pm74u][this reddit comment]]. diff --git a/header-info.el b/header-info.el new file mode 100644 index 0000000..035f50e --- /dev/null +++ b/header-info.el @@ -0,0 +1,149 @@ +;;; header-info.el --- Display buffer information in the header line + +;; Copyright (C) 2020 Ferdinand Pieper + +;; Author: Ferdinand Pieper <mail@pie.tf> +;; Created: 23 Aug 2020 +;; URL: https://github.com/fpiper/header-info + +;; This file is not part of GNU Emacs. + +;; This file 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 2, or (at your option) +;; any later version. +;; +;; This file 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 GNU Emacs; see the file COPYING. If not, see +;; <https://www.gnu.org/licenses/>. + +;;; Commentary: +;; +;; Minor mode to display part of the mode line in the header line +;; instead. Customize `header-info-header-line-format' and +;; `header-info-mode-line-format' to determine what to show in the +;; header and mode line when turned on. +;; +;;; Code: + +(defvar header-info-old-header-line nil) +(defvar header-info-old-mode-line nil) +(make-local-variable 'header-info-old-header-line) +(make-local-variable 'header-info-old-mode-line) + +(defvar mode-line-major-mode + (list `(:propertize ("" mode-name) + help-echo "Major mode\n\ +mouse-1: Display major mode menu\n\ +mouse-2: Show help for major mode\n\ +mouse-3: Toggle minor modes" + mouse-face mode-line-highlight + local-map ,mode-line-major-mode-keymap) + '("" mode-line-process)) + "Mode line construct for displaying major and minor modes.") +(defvar mode-line-minor-modes + (let ((recursive-edit-help-echo "Recursive edit, type C-M-c to get out")) + (list (propertize "%[" 'help-echo recursive-edit-help-echo) + "(" + `(:propertize ("" minor-mode-alist) + mouse-face mode-line-highlight + help-echo "Minor mode\n\ +mouse-1: Display minor mode menu\n\ +mouse-2: Show help for minor mode\n\ +mouse-3: Toggle minor modes" + local-map ,mode-line-minor-mode-keymap) + (propertize "%n" 'help-echo "mouse-2: Remove narrowing from buffer" + 'mouse-face 'mode-line-highlight + 'local-map (make-mode-line-mouse-map + 'mouse-2 #'mode-line-widen)) + " )" + (propertize "%]" 'help-echo recursive-edit-help-echo) + " ")) + "Mode line construct for displaying minor modes.") + +(defgroup header-info nil + "Display information in the header line." + :group 'tools) + +(defcustom header-info-header-line-format + (list " " + '(:eval (let ((name (buffer-name))) + (cond ((not buffer-file-truename) + ;; (propertize name 'face 'bold) + mode-line-buffer-identification + ) + ((equal name (file-name-nondirectory buffer-file-truename)) + (concat + ;; (propertize (f-filename buffer-file-truename) 'face 'bold) + (format-mode-line mode-line-buffer-identification) + " " + (f-dirname buffer-file-truename) + "/…" )) + (t + (concat (propertize name 'face 'bold) + " " + buffer-file-truename))))) + + ;; Right aligned + '(:eval (let* ((right-text (format-mode-line mode-line-major-mode))) + (concat (propertize + " " 'display + `((space :align-to (- (+ right right-fringe right-margin) + ,(+ 3 (string-width right-text)))))) + right-text)))) + "`header-line-format' to use in `header-info-mode'." + :group 'header-info + :type '(list)) + +(defcustom header-info-mode-line-format + `("%e" + (:eval (window-numbering-get-number-string)) + mode-line-front-space + mode-line-mule-info + mode-line-client + mode-line-modified + mode-line-remote + mode-line-frame-identification + ;; mode-line-buffer-identification + " " + mode-line-position + (vc-mode vc-mode) + " " + ,mode-line-minor-modes + ;; mode-line-modes + mode-line-misc-info + mode-line-end-spaces + ) + "`mode-line-format' to use in `header-info-mode'." + :group 'header-info + :type '(list)) + +(defun turn-on-header-info-mode () + (setq header-info-old-header-line header-line-format + header-line-format header-info-header-line-format) + (setq header-info-old-mode-line mode-line-format + mode-line-format header-info-mode-line-format)) +(defun turn-off-header-info-mode () + (setq header-line-format header-info-old-header-line) + (setq mode-line-format header-info-old-mode-line)) + +(define-minor-mode header-info-mode + "Minor mode to show file information in the header line." + nil + nil + nil + (if header-info-mode + (turn-on-header-info-mode) + (turn-off-header-info-mode))) + +(define-globalized-minor-mode global-header-info-mode + header-info-mode turn-on-header-info-mode) + + +(provide 'header-info) +;;; header-info.el ends here |