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;;; +kmacro.el -*- lexical-binding: t; -*-
;;; Commentary:
;; Many of these come from this Reddit thread:
;; https://old.reddit.com/r/emacs/comments/rlli0u/whats_your_favorite_defadvice/
;;; Code:
(require 'kmacro)
;; Indicate when a kmacro is being recorded in the mode-line
(defface +kmacro-modeline nil
"Face when kmacro is active")
(set-face-attribute '+kmacro-modeline nil
:background "Firebrick"
:box '(:line-width -1 :color "salmon"
:style released-button))
(defun +kmacro-change-mode-line (&rest _)
"Remap the mode-line face when recording a kmacro."
(add-to-list 'face-remapping-alist '(mode-line . +kmacro-modeline)))
(defun +kmacro-restore-mode-line (&rest _)
"Restore the mode-line face after kmacro is done recording."
(setf face-remapping-alist
(assoc-delete-all 'mode-line face-remapping-alist)))
(define-minor-mode +kmacro-recording-indicator-mode
"Change the mode-line's face when recording a kmacro."
:lighter ""
:global t
(if +kmacro-recording-indicator-mode
(progn
(advice-add #'kmacro-start-macro :before #'+kmacro-change-mode-line)
(advice-add #'kmacro-keyboard-quit :after #'+kmacro-restore-mode-line)
(advice-add #'kmacro-end-macro :after #'+kmacro-restore-mode-line))
(+kmacro-restore-mode-line)
(advice-remove #'kmacro-start-macro #'+kmacro-change-mode-line)
(advice-remove #'kmacro-keyboard-quit #'+kmacro-restore-mode-line)
(advice-remove #'kmacro-end-macro #'+kmacro-restore-mode-line)))
;; Undo keyboard macros in a single bound (like vi!)
(defun +kmacro-block-undo (fn &rest args)
(let ((marker (prepare-change-group)))
(unwind-protect (apply fn args)
(undo-amalgamate-change-group marker))))
(define-minor-mode +kmacro-block-undo-mode
"Undo kmacros all at once (like vi)."
:global t
:lighter " KUndo"
(if +kmacro-block-undo-mode
(dolist (fn '(kmacro-call-macro
kmacro-exec-ring-item
dot-mode-execute
apply-macro-to-region-lines))
(advice-add fn :around #'+kmacro-block-undo))
(dolist (fn '(kmacro-call-macro
kmacro-exec-ring-item
dot-mode-execute
apply-macro-to-region-lines))
(advice-remove fn #'+kmacro-block-undo))))
(provide '+kmacro)
;;; +kmacro.el ends here
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