From 427284337fb778f4001bc1a2aeed1b9527d76ed9 Mon Sep 17 00:00:00 2001
From: Hyunje Alex Jun <me@noraesae.net>
Date: Sun, 25 Jan 2015 16:24:01 +0000
Subject: [PATCH] Separate $.one event handler.

---
 src/js/lib/event.js | 11 +++++++++++
 src/js/plugin/ps.js |  5 +++--
 2 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 src/js/lib/event.js

diff --git a/src/js/lib/event.js b/src/js/lib/event.js
new file mode 100644
index 0000000..9fec68e
--- /dev/null
+++ b/src/js/lib/event.js
@@ -0,0 +1,11 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+exports.once = function (element, eventName, handler) {
+  element.addEventListener(eventName, function (e) {
+    element.removeEventListener(eventName, handler, false);
+    handler(e);
+  }, false);
+};
diff --git a/src/js/plugin/ps.js b/src/js/plugin/ps.js
index 4db586a..1b10f5f 100644
--- a/src/js/plugin/ps.js
+++ b/src/js/plugin/ps.js
@@ -6,6 +6,7 @@
 var cls = require('../lib/class')
   , d = require('../lib/dom')
   , defaultSettings = require('./default-setting')
+  , evt = require('../lib/event')
   , eventClassFactory = require('../lib/event-class')
   , h = require('../lib/helper');
 
@@ -227,7 +228,7 @@ module.exports = function (element, settingOrCommand) {
       cls.add(element, 'ps-in-scrolling');
 
       $(ownerDocument).bind(eventClass('mousemove'), mouseMoveHandler);
-      $(ownerDocument).one(eventClass('mouseup'), mouseUpHandler);
+      evt.once(ownerDocument, 'mouseup', mouseUpHandler);
 
       e.stopPropagation();
       e.preventDefault();
@@ -259,7 +260,7 @@ module.exports = function (element, settingOrCommand) {
       cls.add(element, 'ps-in-scrolling');
 
       $(ownerDocument).bind(eventClass('mousemove'), mouseMoveHandler);
-      $(ownerDocument).one(eventClass('mouseup'), mouseUpHandler);
+      evt.once(ownerDocument, 'mouseup', mouseUpHandler);
 
       e.stopPropagation();
       e.preventDefault();