;;; extensions.el --- vim-empty-lines Layer extensions File for Spacemacs
;;
;; Copyright (c) 2012-2014 Sylvain Benner
;; Copyright (c) 2014-2015 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3

(setq vim-empty-lines-post-extensions '(vim-empty-lines-mode))

(defun vim-empty-lines/init-vim-empty-lines-mode ()
  (use-package vim-empty-lines-mode
    :diminish vim-empty-lines-mode
    :init
    (add-to-hooks (lambda () (vim-empty-lines-mode -1)) '(comint-mode-hook
                                                          eshell-mode-hook
                                                          eww-mode-hook
                                                          shell-mode-hook
                                                          term-mode-hook))
    :config
    (progn
      (global-vim-empty-lines-mode)
      (spacemacs|add-toggle vim-empty-lines-mode
                            :status vim-empty-lines-mode
                            :on (global-vim-empty-lines-mode)
                            :off (global-vim-empty-lines-mode -1)
                            :documentation
                            (concat "Display an overlay of ~ on "
                                    "empty lines.")
                            :evil-leader "t~")
      ;; don't enable it on spacemacs home buffer
      (with-current-buffer  "*spacemacs*"
        (vim-empty-lines-mode -1))
      ;; after a major mode is loaded, check if the buffer is read only
      ;; if so, disable vim-empty-lines-mode
      (add-hook 'after-change-major-mode-hook (lambda ()
                                                (when buffer-read-only
                                                  (vim-empty-lines-mode -1)))))))