doomemacs/modules/editor/multiple-cursors/config.el
Henrik Lissner a3e262c7ac
💥 Refactor add-hook! macro & change arg order
This update may potentially break your usage of add-hook! if you pass
the :local or :append properties to it. This is how they used to work:

  (add-hook! :append 'some-mode-hook #'do-something)

Thsoe properties must now follow the hooks, e.g.

  (add-hook! 'some-mode-hook :append #'do-something)

Other changes:
- Various add-hook calls have been renamed to add-hook! because I
  incorrectly assumed `defun` always returned its definition's symbol,
  when in fact, its return value is "undefined" (so sayeth the
  documentation). This should fix #1597.
- This update adds the ability to add multiple functions to hooks
  without a list:

    (add-hook! 'some-mode-hook
               #'do-something
               #'do-something-else)

- The indentation logic has been changed so that consecutive function
  symbols at indented at the same level as the first argument, but forms
  are indent like a defun.

    (add-hook! 'some-mode-hook
               #'do-something
               #'do-something-else)

    (add-hook! 'some-mode-hook
      (message "Hello"))
2019-07-26 20:17:29 +02:00

125 lines
5.3 KiB
EmacsLisp

;;; editor/multiple-cursors/config.el -*- lexical-binding: t; -*-
(use-package! evil-mc
:when (featurep! :editor evil)
:commands (evil-mc-make-cursor-here
evil-mc-make-all-cursors
evil-mc-undo-all-cursors
evil-mc-pause-cursors
evil-mc-resume-cursors
evil-mc-make-and-goto-first-cursor
evil-mc-make-and-goto-last-cursor
evil-mc-make-cursor-move-next-line
evil-mc-make-cursor-move-prev-line
evil-mc-make-cursor-at-pos
evil-mc-has-cursors-p
evil-mc-make-and-goto-next-cursor
evil-mc-skip-and-goto-next-cursor
evil-mc-make-and-goto-prev-cursor
evil-mc-skip-and-goto-prev-cursor
evil-mc-make-and-goto-next-match
evil-mc-skip-and-goto-next-match
evil-mc-skip-and-goto-next-match
evil-mc-make-and-goto-prev-match
evil-mc-skip-and-goto-prev-match)
:init
(defvar evil-mc-key-map (make-sparse-keymap))
:config
(global-evil-mc-mode +1)
(setq evil-mc-enable-bar-cursor (not (or IS-MAC IS-WINDOWS)))
(after! smartparens
;; Make evil-mc cooperate with smartparens better
(let ((vars (cdr (assq :default evil-mc-cursor-variables))))
(unless (memq (car sp--mc/cursor-specific-vars) vars)
(setcdr (assq :default evil-mc-cursor-variables)
(append vars sp--mc/cursor-specific-vars)))))
;; Add custom commands to whitelisted commands
(dolist (fn '(doom/backward-to-bol-or-indent doom/forward-to-last-non-comment-or-eol
doom/backward-kill-to-bol-and-indent delete-char))
(add-to-list 'evil-mc-custom-known-commands `(,fn (:default . evil-mc-execute-default-call-with-count))))
;; Have evil-mc work with explicit `evil-escape' (typically bound to C-g)
(add-to-list 'evil-mc-custom-known-commands '(evil-escape (:default . evil-mc-execute-default-evil-normal-state)))
;; Activate evil-mc cursors upon switching to insert mode
(add-hook 'evil-insert-state-entry-hook #'evil-mc-resume-cursors)
;; disable evil-escape in evil-mc; causes unwanted text on invocation
(add-to-list 'evil-mc-incompatible-minor-modes 'evil-escape-mode nil #'eq)
(add-hook! 'doom-escape-hook
(defun +multiple-cursors-escape-multiple-cursors-h ()
"Clear evil-mc cursors and restore state."
(when (evil-mc-has-cursors-p)
(evil-mc-undo-all-cursors)
(evil-mc-resume-cursors)
t)))
;; Forward declare these so that ex completion and evil-mc support is
;; recognized before the autoloaded functions are loaded.
(evil-add-command-properties '+evil:align :evil-mc t)
(evil-set-command-properties '+multiple-cursors:evil-mc
:move-point nil
:ex-arg 'global-match
:ex-bang t
:evil-mc t))
(after! multiple-cursors-core
(setq mc/list-file (concat doom-etc-dir "mc-lists.el"))
;; TODO multiple-cursors config for Emacs users?
;; mc doesn't play well with evil, this attempts to assuage some of its
;; problems so that any plugins that depend on multiple-cursors (which I have
;; no control over) can still use it in relative safety.
(when (featurep! :editor evil)
(evil-define-key* '(normal emacs) mc/keymap [escape] #'mc/keyboard-quit)
(defvar +mc--compat-evil-prev-state nil)
(defvar +mc--compat-mark-was-active nil)
(add-hook! 'multiple-cursors-mode-enabled-hook
(defun +multiple-cursors-compat-switch-to-emacs-state-h ()
(when (and (bound-and-true-p evil-mode)
(not (memq evil-state '(insert emacs))))
(setq +mc--compat-evil-prev-state evil-state)
(when (region-active-p)
(setq +mc--compat-mark-was-active t))
(let ((mark-before (mark))
(point-before (point)))
(evil-emacs-state 1)
(when (or +mc--compat-mark-was-active (region-active-p))
(goto-char point-before)
(set-mark mark-before))))))
(add-hook! 'multiple-cursors-mode-disabled-hook
(defun +multiple-cursors-compat-back-to-previous-state-h ()
(when +mc--compat-evil-prev-state
(unwind-protect
(case +mc--compat-evil-prev-state
((normal visual) (evil-force-normal-state))
(t (message "Don't know how to handle previous state: %S"
+mc--compat-evil-prev-state)))
(setq +mc--compat-evil-prev-state nil)
(setq +mc--compat-mark-was-active nil)))))
;; When running edit-lines, point will return (position + 1) as a result of
;; how evil deals with regions
(defadvice! +multiple--cursors-adjust-mark-for-evil-a (&rest _)
:before #'mc/edit-lines
(when (and (bound-and-true-p evil-mode)
(not (memq evil-state '(insert emacs))))
(if (> (point) (mark))
(goto-char (1- (point)))
(push-mark (1- (mark))))))
(add-hook! 'rectangular-region-mode-hook
(defun +multiple-cursors-evil-compat-rect-switch-state-h ()
(if rectangular-region-mode
(+multiple-cursors-compat-switch-to-emacs-state-h)
(setq +mc--compat-evil-prev-state nil))))
(defvar mc--default-cmds-to-run-once nil)))