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Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/circe-20180525.531/lui-track-bar.el')
-rw-r--r-- | configs/shared/emacs/.emacs.d/elpa/circe-20180525.531/lui-track-bar.el | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/configs/shared/emacs/.emacs.d/elpa/circe-20180525.531/lui-track-bar.el b/configs/shared/emacs/.emacs.d/elpa/circe-20180525.531/lui-track-bar.el new file mode 100644 index 000000000000..360ecf69d550 --- /dev/null +++ b/configs/shared/emacs/.emacs.d/elpa/circe-20180525.531/lui-track-bar.el @@ -0,0 +1,110 @@ +;;; lui-track-bar.el --- Provides a bar to track the last read position + +;; Copyright (C) 2016 Vasilij Schneidermann <v.schneidermann@gmail.com> + +;; Author: Vasilij Schneidermann <v.schneidermann@gmail.com> + +;; This file is part of LUI. + +;; 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, write to the Free Software +;; Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA +;; 02110-1301 USA + +;;; Commentary: + +;; This allows you to track where you've last left off a buffer. + +;; Use (enable-lui-track-bar) to enable this mode globally. You can +;; customize `lui-track-bar-behavior' to change when the track bar +;; moves. You can also use M-x lui-track-bar-move to move the track +;; bar manually. + +;;; Code: + +(require 'lui) +(require 'tracking) + +(defgroup lui-track-bar nil + "Last read position tracking for LUI" + :prefix "lui-track-bar-" + :group 'lui) + +(defcustom lui-track-bar-behavior 'before-switch-to-buffer + "When to move the track bar. + +The following values are possible. + +before-switch-to-buffer (default) + Move the bar to the bottom of the buffer when switching away + from a buffer. + +before-tracking-next-buffer + Move the bar when switching to the next buffer using + \\[tracking-next-buffer]. + +after-send + Move the bar after sending a message." + :type '(choice (const :tag "Before switching buffers" + before-switch-to-buffer) + (const :tag "Before tracking switch" + before-tracking-next-buffer) + (const :tag "After sending" + after-send)) + :group 'lui-track-bar) + +(defface lui-track-bar + '((((type graphic) (background light)) + :inherit default :background "dim gray" :height 0.1) + (((type graphic) (background dark)) + :inherit default :background "light gray" :height 0.1) + (((type tty)) + :inherit (font-lock-comment-face default) :underline t)) + "Track bar face" + :group 'lui-track-bar) + +(defvar lui-track-bar-overlay nil) +(make-variable-buffer-local 'lui-track-bar-overlay) + +;;;###autoload +(defun enable-lui-track-bar () + "Enable a bar in Lui buffers that shows where you stopped reading." + (interactive) + (defadvice switch-to-buffer (before lui-track-bar activate) + (when (and (eq lui-track-bar-behavior 'before-switch-to-buffer) + ;; Do not move the bar if the buffer is displayed still + (<= (length (get-buffer-window-list (current-buffer))) + 1)) + (lui-track-bar-move))) + (defadvice tracking-next-buffer (before lui-track-bar activate) + (when (eq lui-track-bar-behavior 'before-tracking-next-buffer) + (lui-track-bar-move))) + (add-hook 'lui-pre-input-hook 'lui-track-bar--move-pre-input)) + +(defun lui-track-bar--move-pre-input () + (when (eq lui-track-bar-behavior 'after-send) + (lui-track-bar-move))) + +(defun lui-track-bar-move () + "Move the track bar down." + (interactive) + (when (derived-mode-p 'lui-mode) + (when (not lui-track-bar-overlay) + (setq lui-track-bar-overlay (make-overlay (point-min) (point-min))) + (overlay-put lui-track-bar-overlay 'after-string + (propertize "\n" 'face 'lui-track-bar))) + (move-overlay lui-track-bar-overlay + lui-output-marker lui-output-marker))) + +(provide 'lui-track-bar) +;;; lui-track-bar.el ends here |