/goggles

goggles.el - Pulse modified region

Primary LanguageEmacs LispGNU General Public License v3.0GPL-3.0

goggles.el - Pulse modified region

https://melpa.org/packages/goggles-badge.svg

Goggles highlights the modified region using pulse. Currently the commands undo, yank, kill and delete are supported.

This library is the holy counterpart of evil-goggles. Another comparable library is volatile-highlights, which does not use pulse. By setting goggle-pulse to nil, the goggles-mode behaves similarily to the volatile-highlights-mode.

https://github.com/minad/goggles/blob/master/goggles.gif?raw=true

Usage

(use-package goggles
  :hook ((prog-mode text-mode) . goggles-mode)
  :config
  (setq-default goggles-pulse t)) ;; set to nil to disable pulsing

Comparison to volatile-highlights

Goggles is mainly meant as a replacement for volatile-highlights (vhl), which is very popular, but has a few downsides from my perspective.

  • vhl does not support pulse. The request to use pulse for modification highlighting has come up a few times (e.g. recently on reddit).
  • vhl is essentially unmaintained, no commit for 5 years.
  • vhl contains obsolete code (cl instead of cl-lib, old advice mechanism, untested xemacs support)
  • I disagree with the way vhl written, which is unnecessarily complicated. For example vhl contains an overly complicated extension mechanism. This extension mechanism somehow seems to require unnecessary bytecode compilation at startup.

Since improving volatile-highlights does not seem possible to me, except by a rewrite, I decided to create another package. This way breakage for volatile-highlights users is avoided.