diff --git a/src/toolbars/HookCenter.js b/src/toolbars/HookCenter.js
index d504f953..0cb845d1 100644
--- a/src/toolbars/HookCenter.js
+++ b/src/toolbars/HookCenter.js
@@ -117,13 +117,21 @@ const HookList = {
 export default class HookCenter {
   constructor(toolbar) {
     this.toolbar = toolbar;
-    // 保存所有菜单实例
+    /**
+     * @type {{[key: string]: import('@/toolbars/MenuBase').default}} 保存所有菜单实例
+     */
     this.hooks = {};
-    // 所有注册的菜单名称
+    /**
+     * @type {string[]} 所有注册的菜单名称
+     */
     this.allMenusName = [];
-    // 一级菜单的名称
+    /**
+     * @type {string[]} 一级菜单的名称
+     */
     this.level1MenusName = [];
-    // 二级菜单的名称 {一级菜单名称: [二级菜单名称1, 二级菜单名称2]}
+    /**
+     * @type {{ [parentName: string]: string[]}} 二级菜单的名称, e.g. {一级菜单名称: [二级菜单名称1, 二级菜单名称2]}
+     */
     this.level2MenusName = {};
     this.init();
   }
diff --git a/src/toolbars/MenuBase.js b/src/toolbars/MenuBase.js
index 13b8bfe4..1c57f0b6 100644
--- a/src/toolbars/MenuBase.js
+++ b/src/toolbars/MenuBase.js
@@ -65,7 +65,6 @@ export default class MenuBase {
     /**
      * 子菜单的定位方式
      * @property
-     * @private
      * @type {'absolute' | 'fixed'}
      */
     this.positionModel = 'absolute';
@@ -163,7 +162,7 @@ export default class MenuBase {
 
   /**
    * 处理菜单项点击事件
-   * @param {MouseEvent} event 点击事件
+   * @param {MouseEvent | KeyboardEvent | undefined} [event] 点击事件
    * @returns {void}
    */
   fire(event, shortKey = '') {
diff --git a/src/toolbars/Toolbar.js b/src/toolbars/Toolbar.js
index 874ed276..200f0149 100644
--- a/src/toolbars/Toolbar.js
+++ b/src/toolbars/Toolbar.js
@@ -17,8 +17,14 @@ import { mac } from 'codemirror/src/util/browser';
 import HookCenter from './HookCenter';
 import Event from '@/Event';
 import { createElement } from '@/utils/dom';
+import Logger from '@/Logger';
 
 export default class Toolbar {
+  /**
+   * @type {Record<string, any>} 外部获取 toolbarHandler
+   */
+  toolbarHandlers = {};
+
   constructor(options) {
     // 存储所有菜单的实例
     this.menus = {};
@@ -43,6 +49,7 @@ export default class Toolbar {
 
   init() {
     this.collectShortcutKey();
+    this.collectToolbarHandler();
     Event.on(this.instanceId, Event.Events.cleanAllSubMenus, () => this.hidAlleSubMenu());
   }
 
@@ -57,20 +64,22 @@ export default class Toolbar {
   }
 
   isHasLevel2Menu(name) {
+    // FIXME: return boolean
     return this.menus.level2MenusName[name];
   }
 
   isHasConfigMenu(name) {
+    // FIXME: return boolean
     return this.menus.hooks[name].subMenuConfig || [];
   }
 
   /**
    * 判断是否有子菜单，目前有两种子菜单配置方式：1、通过`subMenuConfig`属性 2、通过`buttonConfig`配置属性
-   * @param {String} name
+   * @param {string} name
    * @returns {boolean} 是否有子菜单
    */
   isHasSubMenu(name) {
-    return this.isHasLevel2Menu(name) || this.isHasConfigMenu(name).length > 0;
+    return Boolean(this.isHasLevel2Menu(name) || this.isHasConfigMenu(name).length > 0);
   }
 
   /**
@@ -171,6 +180,24 @@ export default class Toolbar {
     });
   }
 
+  collectToolbarHandler() {
+    this.toolbarHandlers = this.menus.allMenusName.reduce((handlerMap, name) => {
+      const menuHook = this.menus.hooks[name];
+      if (!menuHook) {
+        return handlerMap;
+      }
+      handlerMap[name] = (shortcut, _callback) => {
+        if (typeof _callback === 'function') {
+          Logger.warn(
+            'MenuBase#onClick param callback is no longer supported. Please register the callback via MenuBase#registerAfterClickCb instead.',
+          );
+        }
+        menuHook.fire.call(menuHook, undefined, shortcut);
+      };
+      return handlerMap;
+    }, {});
+  }
+
   /**
    * 监测是否有对应的快捷键
    * @param {KeyboardEvent} evt keydown 事件