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;;; flycheck-pos-tip.el --- Flycheck errors display in tooltip
;; Copyright (C) 2014 Akiha Senda
;; Author: Akiha Senda <senda.akiha@gmail.com>
;; URL: https://github.com/flycheck/flycheck-pos-tip
;; Package-Version: 20140606.510
;; Keywords: tools, convenience
;; Version: 0.0.1
;; Package-Requires: ((flycheck "0.18") (popup "0.5.0"))
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Add error message display method for Flycheck.
;;;; Setup
;; (eval-after-load 'flycheck
;; '(custom-set-variables
;; '(flycheck-display-errors-function #'flycheck-pos-tip-error-messages)))
;;; Code:
(require 'flycheck)
(require 'popup)
(defgroup flycheck-pos-tip nil
"Flycheck errors display in tooltip"
:prefix "flycheck-pos-tip-"
:group 'flycheck
:link '(url-link :tag "Github" "https://github.com/flycheck/flycheck-pos-tip"))
;;;###autoload
(defun flycheck-pos-tip-error-messages (errors)
"Display the tooltip that the messages of ERRORS.
Concatenate all non-nil messages of ERRORS separated by empty
lines, and display them with `pos-tip-show-no-propertize', which shows
the messages in tooltip, depending on the number of lines."
(-when-let (messages (-keep #'flycheck-error-message errors))
(popup-tip
(mapconcat 'identity messages "\n"))))
(provide 'flycheck-pos-tip)
;;; flycheck-pos-tip.el ends here