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evil-collection-company.el
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evil-collection-company.el
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;;; evil-collection-company.el --- Bindings for `company-mode' -*- lexical-binding: t -*-
;; Copyright (C) 2017 James Nguyen
;; Author: James Nguyen <[email protected]>
;; Maintainer: James Nguyen <[email protected]>
;; Pierre Neidhardt <[email protected]>
;; URL: https://github.com/emacs-evil/evil-collection
;; Version: 0.0.1
;; Package-Requires: ((emacs "25.1"))
;; Keywords: evil, company, abbrev, convenience, matching
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Bindings for `company-mode'.
;;; Code:
(require 'company nil t)
(require 'evil-collection)
(declare-function company-tng-mode "company-tng")
(defgroup evil-collection-company nil
"Evil bindings for `company-mode'."
:group 'evil-collection)
(defcustom evil-collection-company-use-tng t
"Enable company-tng through `company-tng-configure-default'.
This mirrors ycmd's behavior for a completion experience more
similar to YouCompleteMe.
Note that for changes to take effect, this variable may have to
be set through custom or before evil-collection loads."
:group 'evil-collection-company
:type 'boolean)
(defcustom evil-collection-company-supported-states '(insert replace emacs)
"The `evil-state's which `company' function can be requested."
:type '(repeat symbol))
(defvar company-active-map)
(defvar company-search-map)
(defconst evil-collection-company-maps '(company-active-map company-search-map))
(defun evil-collection-company-supported-p (command &rest _)
"Return non-nil if `evil-state' is in supported states."
(cond
((not (bound-and-true-p evil-mode)) t)
((eq command 'prefix)
(memq evil-state evil-collection-company-supported-states))
(t t)))
;;;###autoload
(defun evil-collection-company-setup ()
"Set up `evil' bindings for `company'."
(evil-collection-define-key nil 'company-active-map
(kbd "C-n") 'company-select-next-or-abort
(kbd "C-p") 'company-select-previous-or-abort
(kbd "C-j") 'company-select-next-or-abort
(kbd "C-k") 'company-select-previous-or-abort
(kbd "M-j") 'company-select-next
(kbd "M-k") 'company-select-previous)
(when evil-want-C-u-scroll
(evil-collection-define-key nil 'company-active-map
(kbd "C-u") 'company-previous-page))
(when evil-want-C-d-scroll
(evil-collection-define-key nil 'company-active-map
(kbd "C-d") 'company-next-page))
(evil-collection-define-key nil 'company-search-map
(kbd "C-j") 'company-select-next-or-abort
(kbd "C-k") 'company-select-previous-or-abort
(kbd "M-j") 'company-select-next
(kbd "M-k") 'company-select-previous
(kbd "<escape>") 'company-search-abort)
;; Sets up YCMD like behavior.
(when evil-collection-company-use-tng
(require 'company-tng)
(company-tng-mode +1))
;; Make `company-mode' not show popup when not in supported state
(advice-add 'company-call-backend
:before-while 'evil-collection-company-supported-p))
(provide 'evil-collection-company)
;;; evil-collection-company.el ends here