adjust layout and menus for wangEditor

static/js/wangEditor-plugins/history-menu.js

@@ -0,0 +1,42 @@
+(function () {
+
+    // 获取 wangEditor 构造函数和 jquery
+    var E = window.wangEditor;
+    var $ = window.jQuery;
+
+    let HistoryMenu = (function (_BtnMenu) {
+      c2b_inherits(HistoryMenu, _BtnMenu);
+
+      var _super = c2b_createSuper(HistoryMenu);
+
+      function HistoryMenu(editor) {
+        c2b_classCallCheck(this, HistoryMenu);
+
+        const $elem = E.$(`<div class="w-e-menu" data-title="history">
+                    <i class="fa fa-history" aria-hidden="true"></i>
+                </div>`);
+        return _super.call(this, $elem, editor);
+      }
+
+      c2b_createClass(HistoryMenu, [
+        {
+          key: "clickHandler",
+          value: function clickHandler() {
+            window.documentHistory();
+          }
+        },
+        {
+          key: "tryChangeActive",
+          value: function tryChangeActive() {
+            // this.active();
+          }
+        }
+      ]);
+
+      return HistoryMenu;
+    })(E.BtnMenu);
+
+
+    var menuKey = '历史';
+    E.registerMenu(menuKey, HistoryMenu);
+})();