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;;; keybindings.el --- My Evil preferences -*- lexical-binding: t -*-
;; Author: William Carroll <wpcarro@gmail.com>
;;; Commentary:
;; This module hosts my Evil preferences
;;
;; Wish List:
;; - restore support for concise (n <kbd> <function>) instead of `general-mmap'
;; - restore support for `general-unbind'
;;; Code:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Dependencies
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(require 'general)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Packages
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; This may be contraversial, but I never use the prefix key, and I'd prefer to
;; have to bound to the readline function that deletes the entire line.
(general-unbind "C-u")
(use-package evil
:init
;; Should remove the warning messages on init.
(setq evil-want-integration t)
;; TODO: Troubleshoot why this binding causes the following warning:
;; "Warning (evil-collection): `evil-want-keybinding' was set to nil but not
;; before loading evil."
(setq evil-want-keybinding nil)
(general-evil-setup)
:config
;; Ensure that evil's command mode behaves with readline bindings.
(general-define-key
:keymaps 'evil-ex-completion-map
"C-a" #'move-beginning-of-line
"C-e" #'move-end-of-line
"C-k" #'kill-line
"C-u" #'evil-delete-whole-line
"C-v" #'evil-paste-after
"C-d" #'delete-char
"C-f" #'forward-char
"M-b" #'backward-word
"M-f" #'forward-word
"M-d" #'kill-word
"M-DEL" #'backward-kill-word
"C-b" #'backward-char)
;; TODO: Ensure all of my custom keybindings end up in a single map that is
;; easy to enable or disable.
(general-mmap
:keymaps 'override
"RET" #'evil-goto-line
"H" #'evil-first-non-blank
"L" #'evil-end-of-line
"_" #'ranger
"-" #'dired-jump
"sl" #'wpc/evil-window-vsplit-right
"sh" #'evil-window-vsplit
"sk" #'evil-window-split
"sj" #'wpc/evil-window-split-down)
(general-nmap
:keymaps 'override
"gd" #'xref-find-definitions
;; Wrapping `xref-find-references' in the `let' binding to prevent xref from
;; prompting. There are other ways to handle this variable, such as setting
;; it globally with `setq' or buffer-locally with `setq-local'. For now, I
;; prefer setting it with `let', which should bind it in the dynamic scope
;; for the duration of the `xref-find-references' function call.
"gx" (lambda ()
(interactive)
(let ((xref-prompt-for-identifier nil))
(call-interactively #'xref-find-references))))
(general-unbind 'motion "M-." "C-p" "<SPC>")
(general-unbind 'normal "s" "M-." "C-p" "C-n")
(general-unbind 'insert "C-v" "C-d" "C-a" "C-e" "C-n" "C-p" "C-k")
(setq evil-symbol-word-search t)
(evil-mode 1))
;; TODO: Write `evil-collection' KBDs for `refine'.
;; evil keybindings
(use-package evil-collection
:after (evil)
:config
(evil-collection-init))
;; `evil-collection' does not support `magit', and the preferred way to get evil
;; kbds for magit is with `evil-magit'.
(use-package evil-magit)
;; create comments easily
(use-package evil-commentary
:after (evil)
:config
(evil-commentary-mode))
;; evil surround
(use-package evil-surround
:after (evil)
:config
(global-evil-surround-mode 1))
;; I expect in insert mode:
;; C-a: beginning-of-line
;; C-e: end-of-line
;; C-b: backwards-char
;; C-f: forwards-char
;; TODO: Move these KBD constants to kbd.el.
(defconst wpc/up-kbds
'("C-p" "C-k" "<backtab>" "<up>")
"The keybindings that I expect to work for moving upwards in lists.")
(defconst wpc/down-kbds
'("C-n" "C-j" "<tab>" "<down>")
"The keybindings that I expect to work for moving downwards in lists.")
(defconst wpc/left-kbds
'("C-b" "<left>")
"The keybindings that I expect to move leftwards in insert-like modes.")
(defconst wpc/right-kbds
'("C-f" "<right>")
"The keybindings that I expect to move rightwards in insert-like modes.")
(defun wpc/ensure-kbds (_ignore)
"Try to ensure that my keybindings retain priority over other minor modes."
(unless (eq (caar minor-mode-map-alist) 'wpc/kbds-minor-mode)
(let ((mykbds (assq 'wpc/kbds-minor-mode minor-mode-map-alist)))
(assq-delete-all 'wpc/kbds-minor-mode minor-mode-map-alist)
(add-to-list 'minor-mode-map-alist mykbds))))
;; Custom minor mode that ensures that my kbds are available no matter which
;; major or minor modes are active.
(add-hook 'after-load-functions #'wpc/ensure-kbds)
;; TODO: Prefer using general and 'override maps to implement this.
(defvar wpc/kbds
(let ((map (make-sparse-keymap)))
(bind-keys :map map
("M-q" . delete-window)
("<s-return>" . toggle-frame-fullscreen)
("M-h" . windmove-left)
("M-l" . windmove-right)
("M-k" . windmove-up)
("M-j" . windmove-down)
("M-q" . delete-window))
map)
"William Carroll's keybindings that should have the highest precedence.")
;; Support pasting in M-:.
(general-define-key
:keymaps 'read-expression-map
"C-v" #'clipboard-yank
"C-S-v" #'clipboard-yank)
(define-minor-mode wpc/kbds-minor-mode
"A minor mode so that my key settings override annoying major modes."
:init-value t
:lighter " wpc/kbds"
:keymap wpc/kbds)
;; allow jk to escape
(use-package key-chord
:after (evil)
:config
(key-chord-mode 1)
(key-chord-define evil-insert-state-map "jk" 'evil-normal-state))
;; Ensure the Evil search results get centered vertically.
;; TODO: Consider packaging this up for others.
(progn
(defadvice isearch-update
(before advice-for-isearch-update activate)
(evil-scroll-line-to-center (line-number-at-pos)))
(defadvice evil-search-next
(after advice-for-evil-search-next activate)
(evil-scroll-line-to-center (line-number-at-pos)))
(defadvice evil-search-previous
(after advice-for-evil-search-previous activate)
(evil-scroll-line-to-center (line-number-at-pos))))
(provide 'wpc-keybindings)
;;; wpc-keybindings.el ends here
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