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;;; oni-js.el --- JavaScript configuration -*- lexical-binding: t; -*-
;; Copyright (C) 2019 Tom Willemse
;; Author: Tom Willemse <tom@ryuslash.org>
;; Keywords: local
;; Version: 2025.1110.160632
;; Package-Requires: (oni-company js2-mode js2-refactor oni-flycheck fic-mode rjsx-mode prettier-js)
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; JavaScript configuration.
;;; Code:
(require 'company)
(require 'js)
(require 'js2-mode)
(require 'js2-refactor)
(require 'whitespace)
(eval-when-compile
(require 'grep))
(defun oni-js-whitespace-mode ()
"Enable whitespace mode with only tabs showing."
(setq-local whitespace-style '(face tabs))
(whitespace-mode))
(defun oni-js--auto-fill-mode ()
"Enable ‘auto-fill-mode’ only for comments."
(setq-local comment-auto-fill-only-comments t)
(auto-fill-mode))
(setq js-enabled-frameworks '(javascript))
(setq js2-include-node-externs t)
(setq js2-strict-trailing-comma-warning nil)
(setq js2-strict-missing-semi-warning nil)
(setq js2-basic-offset 2)
(add-hook 'js-mode-hook 'electric-pair-local-mode)
(add-hook 'js-mode-hook 'electric-indent-local-mode)
(add-hook 'js-mode-hook 'oni-js--auto-fill-mode)
(add-hook 'js2-mode-hook 'company-mode)
(add-hook 'js2-mode-hook 'display-fill-column-indicator-mode)
(add-hook 'js2-mode-hook 'electric-pair-local-mode)
(add-hook 'js2-mode-hook 'fic-mode)
(add-hook 'js2-mode-hook 'flycheck-mode)
(add-hook 'js2-mode-hook 'js2-refactor-mode)
(add-hook 'js2-mode-hook 'oni-js--auto-fill-mode)
(add-hook 'js2-mode-hook 'oni-js-whitespace-mode)
(add-hook 'js2-mode-hook 'prettier-js-mode)
(add-hook 'js2-mode-hook 'subword-mode)
(js2r-add-keybindings-with-prefix "C-c r")
;;;###autoload
(add-to-list 'auto-mode-alist '("\\.js\\'" . js2-mode))
;;;###autoload
(add-to-list 'auto-mode-alist '("\\.jsx\\'" . rjsx-mode))
;;;###autoload
(add-to-list 'auto-mode-alist '("\\.mjs\\'" . js2-mode))
;;;###autoload
(with-eval-after-load 'grep
(add-to-list 'grep-files-aliases '("js" . "*.js *.jsx *.json *.vue *.mjs")))
(defun oni-js-set-imenu-expression ()
(setq-local imenu-create-index-function 'imenu-default-create-index-function
imenu-generic-expression
(list
(list
nil
(rx (seq bol (minimal-match (zero-or-more space))
(or (seq (optional "async ") (group-n 1 (minimal-match (one-or-more alnum))) "(" (minimal-match (zero-or-more (not ")"))) ")" (minimal-match (zero-or-more white)) "{")
(seq (minimal-match (group-n 1 (one-or-more alnum))) ":" (minimal-match (zero-or-more white)) (optional "function ") "(")
(seq (optional "export ") "function " (minimal-match (group-n 1 (one-or-more (any punct alnum)))) "(" (minimal-match (zero-or-more (not ")"))) ")" (minimal-match (zero-or-more space)) "{")
(seq (optional "export ") (optional "const ") (minimal-match (group-n 1 (one-or-more (any punct alnum)))) (minimal-match (zero-or-more space)) "=" (minimal-match (zero-or-more space)) (optional "async") (optional "function") (minimal-match (zero-or-more space)) "("))))
1))))
(add-hook 'js2-mode-hook #'oni-js-set-imenu-expression)
(defun oni-js-guess-import-filename-at-point ()
(save-excursion
(beginning-of-line)
(when (looking-at "import")
(let* ((bpos (progn
(search-forward-regexp (rx (or "'" "\"")))
(point)))
(epos (progn
(search-forward-regexp (rx (or "'" "\"")))
(point)))
(import-file (buffer-substring bpos (1- epos))))
(cond
((string-prefix-p "@/" import-file)
(let ((file-name (expand-file-name (concat "src/" (substring import-file 2))
(project-root (project-current)))))
(cond
((file-directory-p file-name)
(concat file-name "/index.js"))
((null (file-name-extension file-name))
(concat file-name ".js"))
(t file-name))))
((or (string-prefix-p "../" import-file)
(string-prefix-p "./" import-file))
(let ((file-name (expand-file-name (concat "src/" import-file)
(project-root (project-current)))))
(cond
((file-directory-p file-name)
(concat file-name "/index.js"))
((null (file-name-extension file-name))
(concat file-name ".js"))
(t file-name)))))))))
(defun oni-js-add-ffap-function ()
(add-hook 'file-name-at-point-functions 'oni-js-guess-import-filename-at-point 0 t))
(add-hook 'js2-mode-hook #'oni-js-add-ffap-function)
(provide 'oni-js)
;;; oni-js.el ends here
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