Add prelude-dart module (#1272)

modules/prelude-dart.el

@@ -0,0 +1,58 @@
+;;; prelude-dart.el --- Emacs Prelude: Dart programming configuration.
+;;
+;; Copyright © 2011-2020 Bozhidar Batsov
+;;
+;; Author: Rafael Medina <rafaelmedina789@gmail.com>
+;; URL: http://batsov.com/prelude
+;; Version: 1.0.0
+;; Keywords: convenience
+
+;; This file is not part of GNU Emacs.
+
+;;; Commentary:
+
+;; Some basic configuration for prelude-dart.
+
+;;; License:
+
+;; 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 GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Code:
+
+(require 'prelude-lsp)
+(prelude-require-packages '(lsp-dart))
+
+(with-eval-after-load 'lsp-dart
+  (add-hook 'dart-mode-hook #'lsp))
+
+(with-eval-after-load 'dart-mode
+  (defun prelude-dart-mode-defaults ()
+
+    (setq dap-launch-configuration-providers  '(dap-debug-template-configurations-provider))
+
+    ;; Add to default dart-mode key bindings
+    (lsp-dart-define-key "s o" #'lsp-dart-show-outline)
+    (lsp-dart-define-key "s f" #'lsp-dart-show-flutter-outline)
+    (dap-dart-setup))
+
+  (setq prelude-dart-mode-hook 'prelude-dart-mode-defaults)
+
+  (add-hook 'dart-mode-hook (lambda ()
+                            (run-hooks 'prelude-dart-mode-hook))))
+
+(provide 'prelude-dart)
+
+;;; prelude-dart.el ends here