Code refactoring (3) (es5 -> es2015)

dev/Common/Cmd.jsx

@@ -0,0 +1,35 @@
+
+// import window from 'window';
+import $ from '$';
+import _ from '_';
+import {$body} from 'Common/Globals';
+
+let
+	opened = false,
+	cmdDom = null;
+
+/**
+ * @returns {void}
+ */
+function init()
+{
+	if (null === cmdDom)
+	{
+		cmdDom = $('<div class="rl-cmd"></div>');
+		cmdDom.appendTo($body);
+	}
+}
+
+/**
+ * @returns {void}
+ */
+export function toggle()
+{
+	init();
+
+	opened = !opened;
+
+	_.delay(() => {
+		cmdDom.toggleClass('opened', opened);
+	}, 50);
+}