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Add highlight while repeatable mode is active #31

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Add highlight while repeatable mode is active #31

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28 changes: 27 additions & 1 deletion devil.el
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Original file line number Diff line number Diff line change
Expand Up @@ -209,6 +209,10 @@ repeated merely by typing the last character in the key
sequence."
:type 'boolean)

(defcustom devil-highlight-repeatable nil
"If non-nil, highlight the mode line, while a repeatable command is active."
:type 'boolean)

(defcustom devil-lighter " Devil"
"String displayed on the mode line when Devil mode is enabled."
:type 'string)
Expand Down Expand Up @@ -608,7 +612,13 @@ last-command-event: %s; char-before: %s"
(devil--log "Setting transient repeatable key: %s => %s"
(key-description transient-key) binding)
(define-key map transient-key binding))))
(set-transient-map map t)))
(devil--highlight-repeatable t)
(set-transient-map map t #'devil--disable-transient-map)))

(defun devil--disable-transient-map ()
"Callback, which is executed, when the transient map is removed."
(devil--log "Disable repeatable keys")
(devil--highlight-repeatable nil))

(defun devil--find-repeatable-group (described-key)
"Find the repeatable keys group that DESCRIBED-KEY belongs to."
Expand All @@ -618,6 +628,22 @@ last-command-event: %s; char-before: %s"
(when (string= described-key (devil-format repeatable-key))
(throw 'break repeatable-group))))))

(let ((orig-foreground)
(orig-background))
(defun devil--highlight-repeatable (activep)
"Enable highlight for repeatable command when ACTIVEP is t, disable otherwise."
(when devil-highlight-repeatable
(if activep
(progn
(setq orig-foreground (face-foreground 'mode-line))
(setq orig-background (face-background 'mode-line))
(set-face-attribute 'mode-line nil
:foreground "#604000"
:background "#fff29a"))
(set-face-attribute 'mode-line nil
:foreground orig-foreground
:background orig-background)))))


;;; Utility Functions ================================================

Expand Down