✨ Import text-editor code into the repository

frontend/text-editor/editor/Event.js

@@ -0,0 +1,32 @@
+/**
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * Copyright (c) KALEIDOS INC
+ */
+
+/**
+ * Adds a series of listeners.
+ *
+ * @param {EventTarget} target
+ * @param {Object.<string, Function>} object
+ * @param {EventListenerOptions} [options]
+ */
+export function addEventListeners(target, object, options) {
+  Object.entries(object).forEach(([type, listener]) =>
+    target.addEventListener(type, listener, options)
+  );
+}
+
+/**
+ * Removes a series of listeners.
+ *
+ * @param {EventTarget} target
+ * @param {Object.<string, Function>} object
+ */
+export function removeEventListeners(target, object) {
+  Object.entries(object).forEach(([type, listener]) =>
+    target.removeEventListener(type, listener)
+  );
+}