Added event parameter to PopupMenu perform.

lib/popupmenu.js

@@ -83,10 +83,10 @@ export default class PopupMenu extends Popup {
             Elements.addClass(item, 'popupMenuItem')
             this.items[key] = item
             item.onclick = event => {
-                this.perform(key)
+                this.perform(event, key)
             }
             item.ontap = event => {
-                this.perform(key)
+                this.perform(event, key)
             }
             item.onmouseover = event => {
                 this.over(event, key)
@@ -105,15 +105,16 @@ export default class PopupMenu extends Popup {
     }
 
     /** Execute a menu command.
+     * @param {object} event - The trigger event.
      * @param {string} key - The selected key.
      */
-    perform(key) {
+    perform(event, key) {
         let func = this.commands[key]
         if (this.autoClose) {
             this.close()
         }
         setTimeout(() => {
-            func.call()
+            func.call(event, key)
         }, 20)
     }