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spacemacs/core/core-progress-bar.el
syl20bnr a0a3ff0c20 core: refactor the progress bar
Spacemacs is slow to startup so better give it a not buggy progress bar :-)

* Move progress bar code to core-progress-bar.el file
* Remove the counters at the end of the progress bar
* Fix update of the progress bar value
* Fix progress bar size when staring Emacs maximized
2018-06-10 02:32:29 -04:00

57 lines
2.4 KiB
EmacsLisp

;;; core-progress-bar.el --- Spacemacs Core File
;;
;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(require 'core-spacemacs-buffer)
(defvar spacemacs-loading-char ?█)
(defvar spacemacs-loading-char-light ?░)
(defvar spacemacs-loading-string "")
(defvar spacemacs-loading-counter 0)
(defvar spacemacs-loading-value 0)
(defvar spacemacs-loading-dots-chunk-count 5)
(defvar spacemacs-loading-dots-count 0)
(defvar spacemacs-loading-dots-chunk-size 0)
(defvar spacemacs-loading-dots-chunk-threshold 0)
(defun spacemacs/init-progress-bar (max)
"Initialize the progress bar."
(setq spacemacs-loading-dots-count (window-total-size nil 'width))
(setq spacemacs-loading-dots-chunk-size (/ spacemacs-loading-dots-count
spacemacs-loading-dots-chunk-count))
(setq spacemacs-loading-dots-chunk-threshold
(- (/ max spacemacs-loading-dots-chunk-count) 5))
(setq spacemacs-loading-counter 0)
(setq spacemacs-loading-value 0)
(spacemacs-buffer/set-mode-line (make-string spacemacs-loading-dots-count
spacemacs-loading-char-light))
(spacemacs//redisplay))
(defun spacemacs/update-progress-bar ()
"Update progress bar by incrementing its value by 1.
Display the progress bar by chunks of size `spacemacs--loading-dots-chunk-threshold'"
(when (and (not noninteractive)
dotspacemacs-loading-progress-bar)
(setq spacemacs-loading-counter (1+ spacemacs-loading-counter))
(setq spacemacs-loading-value (1+ spacemacs-loading-value))
(when (>= spacemacs-loading-counter
spacemacs-loading-dots-chunk-threshold)
(let* ((progress
(max 0 (* spacemacs-loading-dots-chunk-size
(floor (/ spacemacs-loading-value
spacemacs-loading-dots-chunk-threshold)))))
(remain (max 0 (- spacemacs-loading-dots-count progress))))
(setq spacemacs-loading-counter 0)
(setq spacemacs-loading-string
(concat (make-string progress spacemacs-loading-char)
(make-string remain spacemacs-loading-char-light)))
(spacemacs-buffer/set-mode-line spacemacs-loading-string))
(spacemacs//redisplay))))
(provide 'core-progress-bar)