;;; hybrid-mode.el --- Put one foot in the church of Emacs ;; Copyright (C) 2012-2018 Sylvain Benner & Contributors ;; ;; Authors: Justin Burkett ;; Chris Ewald ;; Keywords: convenience editing ;; Created: 12 Aug 2015 ;; Version: 1.00 ;; Package-Requires: ((emacs "24") (evil "1.0.9")) ;; URL: https://github.com/syl20bnr/spacemacs ;; This file is not part of GNU Emacs. ;; This program is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation, either version 3 of the License, or ;; (at your option) any later version. ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with this program. If not, see . ;;; Commentary: ;;; Code: (require 'evil) (defcustom hybrid-style-default-state (spacemacs|dotspacemacs-backward-compatibility hybrid-mode-default-state normal) "Value of `evil-default-state' for hybrid-mode." :group 'spacemacs :type 'symbol) (defcustom hybrid-style-enable-hjkl-bindings (spacemacs|dotspacemacs-backward-compatibility hybrid-mode-enable-hjkl-bindings nil) "If non-nil then packages configuration should enable hjkl navigation." :group 'spacemacs :type 'boolean) (defcustom hybrid-style-enable-evilified-state (spacemacs|dotspacemacs-backward-compatibility hybrid-mode-enable-evilified-state t) "If non-nil then evilified states is enabled in buffer supporting it." :group 'spacemacs :type 'boolean) (defcustom hybrid-style-use-evil-search-module (spacemacs|dotspacemacs-backward-compatibility hybrid-mode-use-evil-search-module nil) "If non-nil then use evil own search module which is closer to Vim search behavior (for instance it support C-r pasting)." :group 'spacemacs :type 'boolean) (defvar hybrid-mode-default-state-backup evil-default-state "Backup of `evil-default-state'.") (defadvice evil-insert-state (around hybrid-insert-to-hybrid-state disable) "Forces Hybrid state." (evil-hybrid-state)) (defadvice evil-evilified-state (around hybrid-evilified-to-hybrid-state disable) "Forces Hybrid state." (if (equal -1 (ad-get-arg 0)) ad-do-it (if hybrid-style-enable-evilified-state ad-do-it ;; seems better to set the emacs state instead of hybrid for evilified ;; buffers (evil-emacs-state)))) ;;;###autoload (define-minor-mode hybrid-mode "Global minor mode to replace insert state by hybrid state." :global t :lighter " hybrid" :group 'spacemacs (if hybrid-mode (enable-hybrid-editing-style) (disable-hybrid-editing-style))) (defun enable-hybrid-editing-style () "Enable the hybrid editing style." (setq hybrid-mode-default-state-backup evil-default-state evil-default-state hybrid-style-default-state) ;; replace evil states by `hybrid state' (ad-enable-advice 'evil-insert-state 'around 'hybrid-insert-to-hybrid-state) (ad-enable-advice 'evil-evilified-state 'around 'hybrid-evilified-to-hybrid-state) (ad-activate 'evil-insert-state) (ad-activate 'evil-evilified-state) ;; key bindings hooks for dynamic switching of editing styles (run-hook-with-args 'spacemacs-editing-style-hook 'hybrid) ;; initiate `hybrid state' (hybrid-mode//update-states-for-current-buffers 'hybrid)) (defun disable-hybrid-editing-style () "Disable the hybrid editing style (reverting to 'vim style)." (setq evil-default-state hybrid-mode-default-state-backup) ;; restore evil states (ad-disable-advice 'evil-insert-state 'around 'hybrid-insert-to-hybrid-state) (ad-disable-advice 'evil-evilified-state 'around 'hybrid-evilified-to-hybrid-state) (ad-activate 'evil-insert-state) (ad-activate 'evil-evilified-state) ;; restore key bindings (run-hook-with-args 'spacemacs-editing-style-hook 'vim) ;; restore the states (hybrid-mode//update-states-for-current-buffers 'vim)) ;; This code is from evil insert state definition, any change upstream ;; should be reflected here ;; see https://github.com/emacs-evil/evil/blob/56e92f7cb4e04e665670460093b41f58446b7a2b/evil-states.el#L108 (evil-define-state hybrid "Hybrid state for hybrid mode." :tag " " :cursor (bar . 2) :message "-- HYBRID --" :entry-hook (evil-start-track-last-insertion) :exit-hook (evil-cleanup-insert-state evil-stop-track-last-insertion) :input-method t (cond ((evil-hybrid-state-p) (add-hook 'post-command-hook #'evil-maybe-remove-spaces) (add-hook 'pre-command-hook #'evil-insert-repeat-hook) (setq evil-maybe-remove-spaces t) (unless (eq evil-want-fine-undo t) (evil-start-undo-step))) (t (remove-hook 'post-command-hook #'evil-maybe-remove-spaces) (remove-hook 'pre-command-hook #'evil-insert-repeat-hook) (evil-maybe-remove-spaces t) (setq evil-insert-repeat-info evil-repeat-info) (evil-set-marker ?^ nil t) (unless (eq evil-want-fine-undo t) (evil-end-undo-step)) (when evil-move-cursor-back (when (or (evil-normal-state-p evil-next-state) (evil-motion-state-p evil-next-state)) (evil-move-cursor-back)))))) (define-key evil-hybrid-state-map [escape] 'evil-normal-state) ;; Override stock evil function `evil-insert-state-p' (defun evil-insert-state-p (&optional state) "Whether the current state is insert." (and evil-local-mode (memq (or state evil-state) '(insert hybrid)))) (defun hybrid-mode//update-states-for-current-buffers (style) "Update the active state in all current buffers given current STYLE." (dolist (buffer (buffer-list)) (with-current-buffer buffer (cond ((eq 'hybrid style) (if (memq major-mode evil-evilified-state-modes) (evil-evilified-state) (funcall (intern (format "evil-%S-state" hybrid-style-default-state))))) ((and (eq 'vim style) (memq evil-state '(hybrid emacs))) (cond ((memq major-mode evil-evilified-state-modes) (evil-evilified-state)) ((memq major-mode evil-motion-state-modes) (evil-motion-state)) (t (evil-normal-state)))))))) (provide 'hybrid-mode)