Release 0.5.6.

1. Add scrolling with selection.
2. Bug fixes.

.jshintrc

@@ -27,7 +27,7 @@
 
     "asi"           : false,
     "laxbreak"      : false,
-    "bitwise"       : true,
+    "bitwise"       : false,
     "boss"          : false,
     "curly"         : true,
     "eqeqeq"        : true,

Gruntfile.js

@@ -6,8 +6,7 @@ module.exports = function (grunt) {
   grunt.initConfig({
     // Metadata.
     pkg: grunt.file.readJSON('perfect-scrollbar.jquery.json'),
-    version: grunt.file.readJSON('package.json').version,
-    banner: '/*! <%= pkg.title || pkg.name %> - v<%= version %>\n' +
+    banner: '/*! <%= pkg.title || pkg.name %> - v<%= pkg.version %>\n' +
       '<%= pkg.homepage ? "* " + pkg.homepage + "\\n" : "" %>' +
       '* Copyright (c) <%= grunt.template.today("yyyy") %> <%= pkg.author.name %>;' +
       ' Licensed <%= _.pluck(pkg.licenses, "type").join(", ") %> */\n',
@@ -21,11 +20,7 @@ module.exports = function (grunt) {
       },
       min: {
         files: {
-          'min/perfect-scrollbar-<%= version %>.min.js': ['src/perfect-scrollbar.js'],
-          'min/perfect-scrollbar-<%= version %>.with-mousewheel.min.js': [
-            'src/perfect-scrollbar.js',
-            'src/jquery.mousewheel.js'
-          ]
+          'min/perfect-scrollbar.min.js': ['src/perfect-scrollbar.js']
         }
       }
     },
@@ -61,7 +56,16 @@ module.exports = function (grunt) {
         cwd: 'src/',
         src: ['perfect-scrollbar.css'],
         dest: 'min/',
-        ext: '-<%= version %>.min.css'
+        ext: '.min.css'
+      }
+    },
+    bump: {
+      options: {
+        files: ['package.json', 'bower.json', 'perfect-scrollbar.jquery.json'],
+        updateConfigs: ['pkg'],
+        commit: false,
+        createTag: false,
+        push: false
       }
     }
   });
@@ -72,6 +76,7 @@ module.exports = function (grunt) {
   grunt.loadNpmTasks('grunt-contrib-clean');
   grunt.loadNpmTasks('grunt-contrib-csslint');
   grunt.loadNpmTasks('grunt-contrib-cssmin');
+  grunt.loadNpmTasks('grunt-bump');
 
   grunt.registerTask('default', 'List commands', function () {
     grunt.log.writeln("");
@@ -83,5 +88,9 @@ module.exports = function (grunt) {
   grunt.registerTask('lint', ['jshint', 'csslint']);
   grunt.registerTask('build', ['clean', 'uglify', 'cssmin']);
   grunt.registerTask('travis', ['lint']);
+  grunt.registerTask('release', 'Release a new version', function (arg) {
+    var bumpType = arg ? ':' + arg : '';
+    grunt.task.run(['lint', 'bump' + bumpType, 'build']);
+  });
 
 };

README.md

@@ -1,4 +1,4 @@
-perfect-scrollbar
+perfect-scrollbar [![Travis CI](https://travis-ci.org/noraesae/perfect-scrollbar.svg?branch=master)](https://travis-ci.org/noraesae/perfect-scrollbar)
 =================
 
 Tiny but perfect jQuery scrollbar plugin
@@ -44,16 +44,24 @@ You can download the latest stable version with download links in [Github Page](
 If you want to use the development version of the plugin, use the source files which are not minified. They're in the `src` directory. The development version may be unstable, but some known bugs can be fixed.
 
 ```
-git clone https://github.com/noraesae/perfect-scrollbar.git
-cd perfect-scrollbar/src
+$ git clone https://github.com/noraesae/perfect-scrollbar.git
+$ cd perfect-scrollbar/src
 ```
 
 You can use [Bower](http://bower.io/) to install the plugin. The plugin is registered as `perfect-scrollbar`.
 
 ```
-bower install perfect-scrollbar
+$ bower install perfect-scrollbar
 ```
 
+It's registered on [npm](https://www.npmjs.org/package/perfect-scrollbar) as `perfect-scrollbar`.
+
+```
+$ npm install perfect-scrollbar
+```
+
+You can also load it from [cdnjs](http://cdnjs.com/). It is registered as [`jquery.perfect-scrollbar`](http://www.cdnjs.com/libraries/jquery.perfect-scrollbar).
+
 Requirements
 ------------
 
@@ -67,7 +75,7 @@ To make this plugin *perfect*, some requirements were not avoidable. But they're
 The requirement below is for perfect-scrollbar <= 0.3.4
 
 * there must be the *one* content element(like div) for the container.
- 
+
 Optional parameters
 -------------------
 
@@ -75,16 +83,22 @@ perfect-scrollbar supports optional parameters.
 
 ### wheelSpeed
 The scroll speed applied to mousewheel event.  
-**Default: 10**
+**Default: 1**
 
 ### wheelPropagation
 If this option is true, when the scroll reach the end of the side, mousewheel event will be propagated to parent element.  
+*Currently not supported for touch events*  
 **Default: false**
 
+
 ### minScrollbarLength
 When set to an integer value, the thumb part of the scrollbar will not shrink below that number of pixels.  
 **Default: null**
 
+### maxScrollbarLength
+When set to an integer value, the thumb part of the scrollbar will not expand over that number of pixels.  
+**Default: null**
+
 ### useBothWheelAxes
 When set to true, and only one (vertical or horizontal) scrollbar is visible then both vertical and horizontal scrolling will affect the scrollbar.  
 **Default: false**
@@ -118,7 +132,11 @@ How to Use
 
 ```html
 <style>
-  #Demo { position: 'relative'; }
+  #Demo { 
+    position: relative;
+    height: 100%; /* Or whatever you want (eg. 400px) */
+    overflow: hidden;
+  }
 </style>
 <div id='Demo'>
   <div>
@@ -157,13 +175,6 @@ $("#Demo").perfectScrollbar('update');
 
 Also you can get the informations about how to use the plugin from example codes in the `examples` directory of the source tree.
 
-Very helpful friends
---------------------
-
-perfect-scrollbar supports [jquery-mousewheel](https://github.com/brandonaaron/jquery-mousewheel). If you want to use mousewheel features, please include jquery-mousewheel before using perfect-scrollbar.
-
-If you want to make this plugin's update function more responsive, [jquery-resize](https://github.com/cowboy/jquery-resize) can be helpful.
-
 Contribution
 ------------
 
@@ -181,11 +192,9 @@ For IE problems, please refer to [IE Support](https://github.com/noraesae/perfec
 IE Support
 ----------
 
-This plugin supports old IE browsers in the **minimum** range. The plugin is tested in IEs >= IE6 and works(not well, but works).
+The plugin would work in IEs >= IE9(not well, though).
 
-**But the project will not accept the patches to fix IE problems in IE 6/7/8.**
-
-From jQuery 2.0, jQuery also will not support IE 6/7/8. I also think that supporting old browsers really breaks the web development conventions.
+**The patches to fix problems in IE<=8 won't be accepted.**
 
 When old IEs should be supported, please fork the project and make patches personally.
 
@@ -197,7 +206,7 @@ If you have any idea to improve this project or any problem using this, please f
 License
 -------
 
-The MIT License (MIT) Copyright (c) 2012, 2014 Hyeonje Alex Jun and other contributors.
+The MIT License (MIT) Copyright (c) 2012, 2014 Hyunje Alex Jun and other contributors.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

bower.json

@@ -1,15 +1,14 @@
 {
   "name": "perfect-scrollbar",
-  "version": "0.4.10",
+  "version": "0.5.6",
   "homepage": "http://noraesae.github.io/perfect-scrollbar/",
   "authors": [
-    "Hyeonje Alex Jun <noraesae@yuiazu.net>"
+    "Hyunje Alex Jun <me@noraesae.net>"
   ],
   "description": "Tiny but perfect jQuery scrollbar plugin",
   "main": [
-    "min/perfect-scrollbar-0.4.10.min.css",
-    "min/perfect-scrollbar-0.4.10.min.js",
-    "min/perfect-scrollbar-0.4.10.with-mousewheel.min.js"
+    "src/perfect-scrollbar.css",
+    "src/perfect-scrollbar.js"
   ],
   "license": "MIT",
   "ignore": [
@@ -20,6 +19,6 @@
     "tests"
   ],
   "dependencies": {
-    "jquery": "2.x"
+    "jquery": ">=1.10"
   }
 }

examples/iframe-content.html

@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <title>perfect-scrollbar example</title>
+      <link href="../src/perfect-scrollbar.css" rel="stylesheet">
+      <style>
+        .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: hidden; }
+        .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+        .spacer { text-align:center }
+      </style>
+  </head>
+  <body>
+    <div id="Default" class="contentHolder">
+      <div class="content">
+      </div>
+    </div>
+  </body>
+</html>
+

examples/iframe.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <title>perfect-scrollbar example</title>
+      <link href="../src/perfect-scrollbar.css" rel="stylesheet">
+      <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
+      <script src="../src/perfect-scrollbar.js"></script>
+      <style>
+        #iframe { width: 100%; min-height: 450px; border: 0; }
+        html { direction: rtl; }
+      </style>
+    <script>
+      jQuery(document).ready(function ($) {
+        "use strict";
+        $('#iframe').load(function() {
+          var contentIframe = $(this).contents();
+          var documentIframe = contentIframe.get(0);
+          $('#Default', documentIframe).perfectScrollbar();
+        });
+      });
+    </script>
+  </head>
+  <body>
+    <iframe src="iframe-content.html" id="iframe"></iframe>
+  </body>
+</html>

examples/options-default.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
       <link href="../src/perfect-scrollbar.css" rel="stylesheet">
       <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-      <script src="../src/jquery.mousewheel.js"></script>
       <script src="../src/perfect-scrollbar.js"></script>
       <style>
         .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: hidden; }
@@ -17,6 +16,11 @@
         "use strict";
         $('#Default').perfectScrollbar();
       });
+      var updateSize = function () {
+        var width = parseInt($('#width').val(), 10);
+        var height = parseInt($('#height').val(), 10);
+        $('#Default').width(width).height(height).perfectScrollbar('update');
+      };
     </script>
   </head>
   <body>
@@ -24,6 +28,11 @@
       <div class="content">
       </div>
     </div>
+    <p style='text-align: center'>
+      Width <input type='text' id='width' value='600'>
+      Height <input type='text' id='height' value='400'>
+      <button onclick='updateSize()'>Change!</button>
+    </p>
   </body>
 </html>
 

examples/options-minScrollbarLength.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
         <link href="../src/perfect-scrollbar.css" rel="stylesheet">
         <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-        <script src="../src/jquery.mousewheel.js"></script>
         <script src="../src/perfect-scrollbar.js"></script>
         <style>
           .contentHolder { position:relative; margin:0px auto; padding:0px; width: 640px; height: 360px; overflow: hidden; }

examples/options-suppressScrollAxis.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
       <link href="../src/perfect-scrollbar.css" rel="stylesheet">
       <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-      <script src="../src/jquery.mousewheel.js"></script>
       <script src="../src/perfect-scrollbar.js"></script>
       <style>
         .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: hidden; }

examples/options-useBothWheelAxes.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
         <link href="../src/perfect-scrollbar.css" rel="stylesheet">
         <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-        <script src="../src/jquery.mousewheel.js"></script>
         <script src="../src/perfect-scrollbar.js"></script>
         <style>
           .contentHolder { position:relative; margin:0px auto; padding:0px; width: 640px; height: 360px; overflow: hidden; }

examples/options-wheelPropagation.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
       <link href="../src/perfect-scrollbar.css" rel="stylesheet">
       <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-      <script src="../src/jquery.mousewheel.js"></script>
       <script src="../src/perfect-scrollbar.js"></script>
       <style>
         .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: hidden; }

examples/options-wheelSpeed.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
       <link href="../src/perfect-scrollbar.css" rel="stylesheet">
       <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-      <script src="../src/jquery.mousewheel.js"></script>
       <script src="../src/perfect-scrollbar.js"></script>
       <style>
         .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: hidden; }
@@ -16,23 +15,23 @@
       jQuery(document).ready(function ($) {
         "use strict";
         $('#Default').perfectScrollbar();
-        $('#FastWheelSpeed').perfectScrollbar({wheelSpeed:100});
-        $('#SlowWheelSpeed').perfectScrollbar({wheelSpeed:1});
+        $('#FastWheelSpeed').perfectScrollbar({wheelSpeed:10});
+        $('#SlowWheelSpeed').perfectScrollbar({wheelSpeed:0.1});
       });
     </script>
   </head>
   <body>
-    <h1 style="text-align:center">Default; wheelSpeed:10</h1>
+    <h1 style="text-align:center">Default; wheelSpeed:1</h1>
     <div id="Default" class="contentHolder">
       <div class="content">
       </div>
     </div>
-    <h1 style="text-align:center">Fast: wheelSpeed:100</h1>
+    <h1 style="text-align:center">Fast: wheelSpeed:10</h1>
     <div id="FastWheelSpeed" class="contentHolder">
       <div class="content">
       </div>
     </div>
-    <h1 style="text-align:center">Slow: wheelSpeed:1</h1>
+    <h1 style="text-align:center">Slow: wheelSpeed:0.1</h1>
     <div id="SlowWheelSpeed" class="contentHolder">
       <div class="content">
       </div>

examples/reach-the-end-callback.html

@@ -6,7 +6,6 @@
     <title>perfect-scrollbar example</title>
     <link href="../src/perfect-scrollbar.css" rel="stylesheet">
     <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-    <script src="../src/jquery.mousewheel.js"></script>
     <script src="../src/perfect-scrollbar.js"></script>
     <style>
       #description {

examples/rtl.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
       <link href="../src/perfect-scrollbar.css" rel="stylesheet">
       <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-      <script src="../src/jquery.mousewheel.js"></script>
       <script src="../src/perfect-scrollbar.js"></script>
       <style>
         .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: hidden; }

examples/scrollbars-on-the-opposite-side.html

@@ -5,7 +5,6 @@
     <title>perfect-scrollbar example</title>
       <link href="../src/perfect-scrollbar.css" rel="stylesheet">
       <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-      <script src="../src/jquery.mousewheel.js"></script>
       <script src="../src/perfect-scrollbar.js"></script>
       <style>
         .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: hidden; }

examples/text-content.html

@@ -6,7 +6,6 @@
     <title>perfect-scrollbar example</title>
     <link href="../src/perfect-scrollbar.css" rel="stylesheet">
     <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-    <script src="../src/jquery.mousewheel.js"></script>
     <script src="../src/perfect-scrollbar.js"></script>
     <style>
       #description {
@@ -19,10 +18,7 @@
     </style>
     <script type="text/javascript">
       $(document).ready(function ($) {
-        $('#description').perfectScrollbar({
-          wheelSpeed: 20,
-          wheelPropagation: false
-        });
+        $('#description').perfectScrollbar();
       });
     </script>
   </head>

min/perfect-scrollbar-0.4.10.min.css

@@ -1,5 +0,0 @@
-/*! perfect-scrollbar - v0.4.10
-* http://noraesae.github.com/perfect-scrollbar/
-* Copyright (c) 2014 Hyeonje Alex Jun; Licensed MIT */
-
-.ps-container .ps-scrollbar-x-rail{position:absolute;bottom:3px;height:8px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;opacity:0;filter:alpha(opacity=0);-o-transition:background-color .2s linear,opacity .2s linear;-webkit-transition:background-color .2s linear,opacity .2s linear;-moz-transition:background-color .2s linear,opacity .2s linear;transition:background-color .2s linear,opacity .2s linear}.ps-container:hover .ps-scrollbar-x-rail,.ps-container.hover .ps-scrollbar-x-rail{opacity:.6;filter:alpha(opacity=60)}.ps-container .ps-scrollbar-x-rail:hover,.ps-container .ps-scrollbar-x-rail.hover{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container .ps-scrollbar-x-rail.in-scrolling{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container .ps-scrollbar-y-rail{position:absolute;right:3px;width:8px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;opacity:0;filter:alpha(opacity=0);-o-transition:background-color .2s linear,opacity .2s linear;-webkit-transition:background-color .2s linear,opacity .2s linear;-moz-transition:background-color .2s linear,opacity .2s linear;transition:background-color .2s linear,opacity .2s linear}.ps-container:hover .ps-scrollbar-y-rail,.ps-container.hover .ps-scrollbar-y-rail{opacity:.6;filter:alpha(opacity=60)}.ps-container .ps-scrollbar-y-rail:hover,.ps-container .ps-scrollbar-y-rail.hover{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container .ps-scrollbar-y-rail.in-scrolling{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container .ps-scrollbar-x{position:absolute;bottom:0;height:8px;background-color:#aaa;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-o-transition:background-color .2s linear;-webkit-transition:background-color.2s linear;-moz-transition:background-color .2s linear;transition:background-color .2s linear}.ps-container.ie6 .ps-scrollbar-x{font-size:0}.ps-container .ps-scrollbar-x-rail:hover .ps-scrollbar-x,.ps-container .ps-scrollbar-x-rail.hover .ps-scrollbar-x{background-color:#999}.ps-container .ps-scrollbar-y{position:absolute;right:0;width:8px;background-color:#aaa;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-o-transition:background-color .2s linear;-webkit-transition:background-color.2s linear;-moz-transition:background-color .2s linear;transition:background-color .2s linear}.ps-container.ie6 .ps-scrollbar-y{font-size:0}.ps-container .ps-scrollbar-y-rail:hover .ps-scrollbar-y,.ps-container .ps-scrollbar-y-rail.hover .ps-scrollbar-y{background-color:#999}.ps-container.ie .ps-scrollbar-x,.ps-container.ie .ps-scrollbar-y{visibility:hidden}.ps-container.ie:hover .ps-scrollbar-x,.ps-container.ie:hover .ps-scrollbar-y,.ps-container.ie.hover .ps-scrollbar-x,.ps-container.ie.hover .ps-scrollbar-y{visibility:visible}

min/perfect-scrollbar.min.css

@@ -0,0 +1,5 @@
+/*! perfect-scrollbar - v0.5.6
+* http://noraesae.github.com/perfect-scrollbar/
+* Copyright (c) 2014 Hyunje Alex Jun; Licensed MIT */
+
+.ps-container>.ps-scrollbar-x-rail{display:none;position:absolute;bottom:3px;height:8px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;opacity:0;filter:alpha(opacity=0);-o-transition:background-color .2s linear,opacity .2s linear;-webkit-transition:background-color .2s linear,opacity .2s linear;-moz-transition:background-color .2s linear,opacity .2s linear;transition:background-color .2s linear,opacity .2s linear}.ps-container.ps-active-x>.ps-scrollbar-x-rail{display:block}.ps-container:hover>.ps-scrollbar-x-rail{opacity:.6;filter:alpha(opacity=60)}.ps-container>.ps-scrollbar-x-rail:hover{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container>.ps-scrollbar-x-rail.in-scrolling{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container>.ps-scrollbar-y-rail{display:block;position:absolute;right:3px;width:8px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;opacity:0;filter:alpha(opacity=0);-o-transition:background-color .2s linear,opacity .2s linear;-webkit-transition:background-color .2s linear,opacity .2s linear;-moz-transition:background-color .2s linear,opacity .2s linear;transition:background-color .2s linear,opacity .2s linear}.ps-container.ps-active-y>.ps-scrollbar-y-rail{display:block}.ps-container:hover>.ps-scrollbar-y-rail{opacity:.6;filter:alpha(opacity=60)}.ps-container>.ps-scrollbar-y-rail:hover{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container>.ps-scrollbar-y-rail.in-scrolling{background-color:#eee;opacity:.9;filter:alpha(opacity=90)}.ps-container>.ps-scrollbar-x-rail>.ps-scrollbar-x{position:absolute;bottom:0;height:8px;background-color:#aaa;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-o-transition:background-color .2s linear;-webkit-transition:background-color.2s linear;-moz-transition:background-color .2s linear;transition:background-color .2s linear}.ps-container>.ps-scrollbar-x-rail:hover>.ps-scrollbar-x{background-color:#999}.ps-container>.ps-scrollbar-y-rail>.ps-scrollbar-y{position:absolute;right:0;width:8px;background-color:#aaa;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-o-transition:background-color .2s linear;-webkit-transition:background-color.2s linear;-moz-transition:background-color .2s linear;transition:background-color .2s linear}.ps-container>.ps-scrollbar-y-rail:hover>.ps-scrollbar-y{background-color:#999}

package.json

@@ -1,18 +1,39 @@
 {
   "name": "perfect-scrollbar",
-  "version": "0.4.10",
+  "version": "0.5.6",
+  "description": "Tiny but perfect jquery scrollbar plugin.",
+  "author": "Hyunje Alex Jun <me@noraesae.net>",
+  "contributors": [{
+    "name": "Hyunje Alex Jun",
+    "email": "me@noraesae.net"
+  }],
+  "main": "src/perfect-scrollbar.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/noraesae/perfect-scrollbar"
+  },
+  "bugs": {
+    "url": "https://github.com/noraesae/perfect-scrollbar/issues"
+  },
+  "keywords": [
+    "jquery-plugin",
+    "scroll",
+    "scrollbar"
+  ],
   "engines": {
     "node": ">= 0.8.0"
   },
   "devDependencies": {
     "grunt": "~0.4.1",
-    "grunt-contrib-jshint": "~0.1.1",
-    "grunt-contrib-uglify": "~0.1.1",
-    "grunt-contrib-cssmin": "~0.6.1",
+    "grunt-bump": "0.0.16",
+    "grunt-contrib-clean": "~0.4.1",
     "grunt-contrib-csslint": "~0.1.2",
-    "grunt-contrib-clean": "~0.4.1"
+    "grunt-contrib-cssmin": "~0.6.1",
+    "grunt-contrib-jshint": "~0.1.1",
+    "grunt-contrib-uglify": "~0.1.1"
   },
   "scripts": {
     "test": "grunt travis --verbose"
-  }
+  },
+  "license": "MIT"
 }

perfect-scrollbar.jquery.json

@@ -2,10 +2,10 @@
   "name": "perfect-scrollbar",
   "title": "perfect-scrollbar",
   "description": "Tiny but perfect jquery scrollbar plugin.",
-  "version": "0.4.10",
+  "version": "0.5.6",
   "author": {
-    "name": "Hyeonje Alex Jun",
-    "email": "noraesae@yuiazu.net",
+    "name": "Hyunje Alex Jun",
+    "email": "me@noraesae.net",
     "url": "https://github.com/noraesae/"
   },
   "licenses": [
@@ -15,7 +15,7 @@
     }
   ],
   "dependencies": {
-    "jquery": ">=1.8"
+    "jquery": ">=1.10"
   },
   "keywords": [
     "ui",
@@ -29,8 +29,8 @@
   "bugs": "https://github.com/noraesae/perfect-scrollbar/issues/",
   "maintainers": [
     {
-      "name": "Hyeonje Alex Jun",
-      "email": "noraesae@yuiazu.net",
+      "name": "Hyunje Alex Jun",
+      "email": "me@noraesae.net",
       "url": "https://github.com/noraesae/"
     }
   ]

src/jquery.mousewheel.js

@@ -1,201 +0,0 @@
-/*! Copyright (c) 2013 Brandon Aaron (http://brandon.aaron.sh)
- * Licensed under the MIT License (LICENSE.txt).
- *
- * Version: 3.1.9
- *
- * Requires: jQuery 1.2.2+
- */
-
-(function (factory) {
-    if ( typeof define === 'function' && define.amd ) {
-        // AMD. Register as an anonymous module.
-        define(['jquery'], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS style for Browserify
-        module.exports = factory;
-    } else {
-        // Browser globals
-        factory(jQuery);
-    }
-}(function ($) {
-
-    var toFix  = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'],
-        toBind = ( 'onwheel' in document || document.documentMode >= 9 ) ?
-                    ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'],
-        slice  = Array.prototype.slice,
-        nullLowestDeltaTimeout, lowestDelta;
-
-    if ( $.event.fixHooks ) {
-        for ( var i = toFix.length; i; ) {
-            $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
-        }
-    }
-
-    var special = $.event.special.mousewheel = {
-        version: '3.1.9',
-
-        setup: function() {
-            if ( this.addEventListener ) {
-                for ( var i = toBind.length; i; ) {
-                    this.addEventListener( toBind[--i], handler, false );
-                }
-            } else {
-                this.onmousewheel = handler;
-            }
-            // Store the line height and page height for this particular element
-            $.data(this, 'mousewheel-line-height', special.getLineHeight(this));
-            $.data(this, 'mousewheel-page-height', special.getPageHeight(this));
-        },
-
-        teardown: function() {
-            if ( this.removeEventListener ) {
-                for ( var i = toBind.length; i; ) {
-                    this.removeEventListener( toBind[--i], handler, false );
-                }
-            } else {
-                this.onmousewheel = null;
-            }
-        },
-
-        getLineHeight: function(elem) {
-            return parseInt($(elem)['offsetParent' in $.fn ? 'offsetParent' : 'parent']().css('fontSize'), 10);
-        },
-
-        getPageHeight: function(elem) {
-            return $(elem).height();
-        },
-
-        settings: {
-            adjustOldDeltas: true
-        }
-    };
-
-    $.fn.extend({
-        mousewheel: function(fn) {
-            return fn ? this.bind('mousewheel', fn) : this.trigger('mousewheel');
-        },
-
-        unmousewheel: function(fn) {
-            return this.unbind('mousewheel', fn);
-        }
-    });
-
-
-    function handler(event) {
-        var orgEvent   = event || window.event,
-            args       = slice.call(arguments, 1),
-            delta      = 0,
-            deltaX     = 0,
-            deltaY     = 0,
-            absDelta   = 0;
-        event = $.event.fix(orgEvent);
-        event.type = 'mousewheel';
-
-        // Old school scrollwheel delta
-        if ( 'detail'      in orgEvent ) { deltaY = orgEvent.detail * -1;      }
-        if ( 'wheelDelta'  in orgEvent ) { deltaY = orgEvent.wheelDelta;       }
-        if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY;      }
-        if ( 'wheelDeltaX' in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; }
-
-        // Firefox < 17 horizontal scrolling related to DOMMouseScroll event
-        if ( 'axis' in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
-            deltaX = deltaY * -1;
-            deltaY = 0;
-        }
-
-        // Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy
-        delta = deltaY === 0 ? deltaX : deltaY;
-
-        // New school wheel delta (wheel event)
-        if ( 'deltaY' in orgEvent ) {
-            deltaY = orgEvent.deltaY * -1;
-            delta  = deltaY;
-        }
-        if ( 'deltaX' in orgEvent ) {
-            deltaX = orgEvent.deltaX;
-            if ( deltaY === 0 ) { delta  = deltaX * -1; }
-        }
-
-        // No change actually happened, no reason to go any further
-        if ( deltaY === 0 && deltaX === 0 ) { return; }
-
-        // Need to convert lines and pages to pixels if we aren't already in pixels
-        // There are three delta modes:
-        //   * deltaMode 0 is by pixels, nothing to do
-        //   * deltaMode 1 is by lines
-        //   * deltaMode 2 is by pages
-        if ( orgEvent.deltaMode === 1 ) {
-            var lineHeight = $.data(this, 'mousewheel-line-height');
-            delta  *= lineHeight;
-            deltaY *= lineHeight;
-            deltaX *= lineHeight;
-        } else if ( orgEvent.deltaMode === 2 ) {
-            var pageHeight = $.data(this, 'mousewheel-page-height');
-            delta  *= pageHeight;
-            deltaY *= pageHeight;
-            deltaX *= pageHeight;
-        }
-
-        // Store lowest absolute delta to normalize the delta values
-        absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) );
-
-        if ( !lowestDelta || absDelta < lowestDelta ) {
-            lowestDelta = absDelta;
-
-            // Adjust older deltas if necessary
-            if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
-                lowestDelta /= 40;
-            }
-        }
-
-        // Adjust older deltas if necessary
-        if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
-            // Divide all the things by 40!
-            delta  /= 40;
-            deltaX /= 40;
-            deltaY /= 40;
-        }
-
-        // Get a whole, normalized value for the deltas
-        delta  = Math[ delta  >= 1 ? 'floor' : 'ceil' ](delta  / lowestDelta);
-        deltaX = Math[ deltaX >= 1 ? 'floor' : 'ceil' ](deltaX / lowestDelta);
-        deltaY = Math[ deltaY >= 1 ? 'floor' : 'ceil' ](deltaY / lowestDelta);
-
-        // Add information to the event object
-        event.deltaX = deltaX;
-        event.deltaY = deltaY;
-        event.deltaFactor = lowestDelta;
-        // Go ahead and set deltaMode to 0 since we converted to pixels
-        // Although this is a little odd since we overwrite the deltaX/Y
-        // properties with normalized deltas.
-        event.deltaMode = 0;
-
-        // Add event and delta to the front of the arguments
-        args.unshift(event, delta, deltaX, deltaY);
-
-        // Clearout lowestDelta after sometime to better
-        // handle multiple device types that give different
-        // a different lowestDelta
-        // Ex: trackpad = 3 and mouse wheel = 120
-        if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); }
-        nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200);
-
-        return ($.event.dispatch || $.event.handle).apply(this, args);
-    }
-
-    function nullLowestDelta() {
-        lowestDelta = null;
-    }
-
-    function shouldAdjustOldDeltas(orgEvent, absDelta) {
-        // If this is an older event and the delta is divisable by 120,
-        // then we are assuming that the browser is treating this as an
-        // older mouse wheel event and that we should divide the deltas
-        // by 40 to try and get a more usable deltaFactor.
-        // Side note, this actually impacts the reported scroll distance
-        // in older browsers and can cause scrolling to be slower than native.
-        // Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false.
-        return special.settings.adjustOldDeltas && orgEvent.type === 'mousewheel' && absDelta % 120 === 0;
-    }
-
-}));

src/perfect-scrollbar.css

@@ -1,4 +1,5 @@
-.ps-container .ps-scrollbar-x-rail {
+.ps-container>.ps-scrollbar-x-rail {
+    display: none;
     position: absolute; /* please don't change 'position' */
     bottom: 3px; /* there must be 'bottom' for ps-scrollbar-x-rail */
     height: 8px;
@@ -6,33 +7,36 @@
     -moz-border-radius: 4px;
     border-radius: 4px;
     opacity: 0;
-    filter: alpha(opacity = 0);
+    filter: alpha(opacity=0);
     -o-transition: background-color .2s linear, opacity .2s linear;
     -webkit-transition: background-color .2s linear, opacity .2s linear;
     -moz-transition: background-color .2s linear, opacity .2s linear;
     transition: background-color .2s linear, opacity .2s linear;
 }
 
-.ps-container:hover .ps-scrollbar-x-rail,
-.ps-container.hover .ps-scrollbar-x-rail {
+.ps-container.ps-active-x>.ps-scrollbar-x-rail {
+    display: block;
+}
+
+.ps-container:hover>.ps-scrollbar-x-rail {
     opacity: 0.6;
-    filter: alpha(opacity = 60);
+    filter: alpha(opacity=60);
 }
 
-.ps-container .ps-scrollbar-x-rail:hover,
-.ps-container .ps-scrollbar-x-rail.hover {
+.ps-container>.ps-scrollbar-x-rail:hover {
     background-color: #eee;
     opacity: 0.9;
-    filter: alpha(opacity = 90);
+    filter: alpha(opacity=90);
 }
 
-.ps-container .ps-scrollbar-x-rail.in-scrolling {
+.ps-container>.ps-scrollbar-x-rail.in-scrolling {
     background-color: #eee;
     opacity: 0.9;
-    filter: alpha(opacity = 90);
+    filter: alpha(opacity=90);
 }
 
-.ps-container .ps-scrollbar-y-rail {
+.ps-container>.ps-scrollbar-y-rail {
+    display: block;
     position: absolute; /* please don't change 'position' */
     right: 3px; /* there must be 'right' for ps-scrollbar-y-rail */
     width: 8px;
@@ -47,26 +51,28 @@
     transition: background-color .2s linear, opacity .2s linear;
 }
 
-.ps-container:hover .ps-scrollbar-y-rail,
-.ps-container.hover .ps-scrollbar-y-rail {
+.ps-container.ps-active-y>.ps-scrollbar-y-rail {
+    display: block;
+}
+
+.ps-container:hover>.ps-scrollbar-y-rail {
     opacity: 0.6;
-    filter: alpha(opacity = 60);
+    filter: alpha(opacity=60);
 }
 
-.ps-container .ps-scrollbar-y-rail:hover,
-.ps-container .ps-scrollbar-y-rail.hover {
+.ps-container>.ps-scrollbar-y-rail:hover {
     background-color: #eee;
     opacity: 0.9;
-    filter: alpha(opacity = 90);
+    filter: alpha(opacity=90);
 }
 
-.ps-container .ps-scrollbar-y-rail.in-scrolling {
+.ps-container>.ps-scrollbar-y-rail.in-scrolling {
     background-color: #eee;
     opacity: 0.9;
-    filter: alpha(opacity = 90);
+    filter: alpha(opacity=90);
 }
 
-.ps-container .ps-scrollbar-x {
+.ps-container>.ps-scrollbar-x-rail>.ps-scrollbar-x {
     position: absolute; /* please don't change 'position' */
     bottom: 0; /* there must be 'bottom' for ps-scrollbar-x */
     height: 8px;
@@ -80,16 +86,11 @@
     transition: background-color .2s linear;
 }
 
-.ps-container.ie6 .ps-scrollbar-x {
-    font-size: 0; /* fixed scrollbar height in xp sp3 ie6 */
-}
-
-.ps-container .ps-scrollbar-x-rail:hover .ps-scrollbar-x,
-.ps-container .ps-scrollbar-x-rail.hover .ps-scrollbar-x {
+.ps-container>.ps-scrollbar-x-rail:hover>.ps-scrollbar-x {
     background-color: #999;
 }
 
-.ps-container .ps-scrollbar-y {
+.ps-container>.ps-scrollbar-y-rail>.ps-scrollbar-y {
     position: absolute; /* please don't change 'position' */
     right: 0; /* there must be 'right' for ps-scrollbar-y */
     width: 8px;
@@ -103,23 +104,6 @@
     transition: background-color .2s linear;
 }
 
-.ps-container.ie6 .ps-scrollbar-y {
-    font-size: 0; /* fixed scrollbar height in xp sp3 ie6 */
-}
-
-.ps-container .ps-scrollbar-y-rail:hover .ps-scrollbar-y,
-.ps-container .ps-scrollbar-y-rail.hover .ps-scrollbar-y {
+.ps-container>.ps-scrollbar-y-rail:hover>.ps-scrollbar-y {
     background-color: #999;
 }
-
-.ps-container.ie .ps-scrollbar-x,
-.ps-container.ie .ps-scrollbar-y {
-    visibility: hidden;
-}
-
-.ps-container.ie:hover .ps-scrollbar-x,
-.ps-container.ie:hover .ps-scrollbar-y,
-.ps-container.ie.hover .ps-scrollbar-x,
-.ps-container.ie.hover .ps-scrollbar-y {
-    visibility: visible;
-}

src/perfect-scrollbar.js

@@ -1,4 +1,4 @@
-/* Copyright (c) 2012, 2014 Hyeonje Alex Jun and other contributors
+/* Copyright (c) 2012, 2014 Hyunje Alex Jun and other contributors
  * Licensed under the MIT License
  */
 (function (factory) {
@@ -14,14 +14,22 @@
     // Browser globals
     factory(jQuery);
   }
-}(function ($) {
+})(function ($) {
   'use strict';
 
-  // The default settings for the plugin
+  function int(x) {
+    if (typeof x === 'string') {
+      return parseInt(x, 10);
+    } else {
+      return ~~x;
+    }
+  }
+
   var defaultSettings = {
-    wheelSpeed: 10,
+    wheelSpeed: 1,
     wheelPropagation: false,
     minScrollbarLength: null,
+    maxScrollbarLength: null,
     useBothWheelAxes: false,
     useKeyboard: true,
     suppressScrollX: false,
@@ -31,32 +39,34 @@
     includePadding: false
   };
 
-  var getEventClassName = (function () {
-    var incrementingId = 0;
-    return function () {
-      var id = incrementingId;
-      incrementingId += 1;
-      return '.perfect-scrollbar-' + id;
+  var incrementingId = 0;
+  var eventClassFactory = function () {
+    var id = incrementingId++;
+    return function (eventName) {
+      var className = '.perfect-scrollbar-' + id;
+      if (typeof eventName === 'undefined') {
+        return className;
+      } else {
+        return eventName + className;
+      }
     };
-  }());
+  };
 
   $.fn.perfectScrollbar = function (suppliedSettings, option) {
 
     return this.each(function () {
-      // Use the default settings
-      var settings = $.extend(true, {}, defaultSettings),
-          $this = $(this);
+      var settings = $.extend(true, {}, defaultSettings);
+      var $this = $(this);
 
       if (typeof suppliedSettings === "object") {
-        // But over-ride any supplied
+        // Override default settings with any supplied
         $.extend(true, settings, suppliedSettings);
       } else {
-        // If no settings were supplied, then the first param must be the option
+        // If no setting was supplied, then the first param must be the option
         option = suppliedSettings;
       }
 
       // Catch options
-
       if (option === 'update') {
         if ($this.data('perfect-scrollbar-update')) {
           $this.data('perfect-scrollbar-update')();
@@ -78,123 +88,119 @@
 
       // Or generate new perfectScrollbar
 
-      // Set class to the container
       $this.addClass('ps-container');
 
-      var $scrollbarXRail = $("<div class='ps-scrollbar-x-rail'></div>").appendTo($this),
-          $scrollbarYRail = $("<div class='ps-scrollbar-y-rail'></div>").appendTo($this),
-          $scrollbarX = $("<div class='ps-scrollbar-x'></div>").appendTo($scrollbarXRail),
-          $scrollbarY = $("<div class='ps-scrollbar-y'></div>").appendTo($scrollbarYRail),
-          scrollbarXActive,
-          scrollbarYActive,
-          containerWidth,
-          containerHeight,
-          contentWidth,
-          contentHeight,
-          scrollbarXWidth,
-          scrollbarXLeft,
-          scrollbarXBottom = parseInt($scrollbarXRail.css('bottom'), 10),
-          isScrollbarXUsingBottom = scrollbarXBottom === scrollbarXBottom, // !isNaN
-          scrollbarXTop = isScrollbarXUsingBottom ? null : parseInt($scrollbarXRail.css('top'), 10),
-          scrollbarYHeight,
-          scrollbarYTop,
-          scrollbarYRight = parseInt($scrollbarYRail.css('right'), 10),
-          isScrollbarYUsingRight = scrollbarYRight === scrollbarYRight, // !isNaN
-          scrollbarYLeft = isScrollbarYUsingRight ? null: parseInt($scrollbarYRail.css('left'), 10),
-          isRtl = $this.css('direction') === "rtl",
-          eventClassName = getEventClassName();
+      var containerWidth;
+      var containerHeight;
+      var contentWidth;
+      var contentHeight;
 
-      var updateContentScrollTop = function (currentTop, deltaY) {
-        var newTop = currentTop + deltaY,
-            maxTop = containerHeight - scrollbarYHeight;
+      var isRtl = $this.css('direction') === "rtl";
+      var eventClass = eventClassFactory();
+      var ownerDocument = this.ownerDocument || document;
+
+      var $scrollbarXRail = $("<div class='ps-scrollbar-x-rail'>").appendTo($this);
+      var $scrollbarX = $("<div class='ps-scrollbar-x'>").appendTo($scrollbarXRail);
+      var scrollbarXActive;
+      var scrollbarXWidth;
+      var scrollbarXLeft;
+      var scrollbarXBottom = int($scrollbarXRail.css('bottom'));
+      var isScrollbarXUsingBottom = scrollbarXBottom === scrollbarXBottom; // !isNaN
+      var scrollbarXTop = isScrollbarXUsingBottom ? null : int($scrollbarXRail.css('top'));
+      var railBorderXWidth = int($scrollbarXRail.css('borderLeftWidth')) + int($scrollbarXRail.css('borderRightWidth'));
+
+      var $scrollbarYRail = $("<div class='ps-scrollbar-y-rail'>").appendTo($this);
+      var $scrollbarY = $("<div class='ps-scrollbar-y'>").appendTo($scrollbarYRail);
+      var scrollbarYActive;
+      var scrollbarYHeight;
+      var scrollbarYTop;
+      var scrollbarYRight = int($scrollbarYRail.css('right'));
+      var isScrollbarYUsingRight = scrollbarYRight === scrollbarYRight; // !isNaN
+      var scrollbarYLeft = isScrollbarYUsingRight ? null : int($scrollbarYRail.css('left'));
+      var railBorderYWidth = int($scrollbarYRail.css('borderTopWidth')) + int($scrollbarYRail.css('borderBottomWidth'));
+
+      function updateScrollTop(currentTop, deltaY) {
+        var newTop = currentTop + deltaY;
+        var maxTop = containerHeight - scrollbarYHeight;
 
         if (newTop < 0) {
           scrollbarYTop = 0;
-        }
-        else if (newTop > maxTop) {
+        } else if (newTop > maxTop) {
           scrollbarYTop = maxTop;
-        }
-        else {
+        } else {
           scrollbarYTop = newTop;
         }
 
-        var scrollTop = parseInt(scrollbarYTop * (contentHeight - containerHeight) / (containerHeight - scrollbarYHeight), 10);
+        var scrollTop = int(scrollbarYTop * (contentHeight - containerHeight) / (containerHeight - scrollbarYHeight));
         $this.scrollTop(scrollTop);
+      }
 
-        if (isScrollbarXUsingBottom) {
-          $scrollbarXRail.css({bottom: scrollbarXBottom - scrollTop});
-        } else {
-          $scrollbarXRail.css({top: scrollbarXTop + scrollTop});
-        }
-      };
-
-      var updateContentScrollLeft = function (currentLeft, deltaX) {
-        var newLeft = currentLeft + deltaX,
-            maxLeft = containerWidth - scrollbarXWidth;
+      function updateScrollLeft(currentLeft, deltaX) {
+        var newLeft = currentLeft + deltaX;
+        var maxLeft = containerWidth - scrollbarXWidth;
 
         if (newLeft < 0) {
           scrollbarXLeft = 0;
-        }
-        else if (newLeft > maxLeft) {
+        } else if (newLeft > maxLeft) {
           scrollbarXLeft = maxLeft;
-        }
-        else {
+        } else {
           scrollbarXLeft = newLeft;
         }
 
-        var scrollLeft = parseInt(scrollbarXLeft * (contentWidth - containerWidth) / (containerWidth - scrollbarXWidth), 10);
+        var scrollLeft = int(scrollbarXLeft * (contentWidth - containerWidth) / (containerWidth - scrollbarXWidth));
         $this.scrollLeft(scrollLeft);
+      }
 
-        if (isScrollbarYUsingRight) {
-          $scrollbarYRail.css({right: scrollbarYRight - scrollLeft});
-        } else {
-          $scrollbarYRail.css({left: scrollbarYLeft + scrollLeft});
-        }
-      };
-
-      var getSettingsAdjustedThumbSize = function (thumbSize) {
+      function getThumbSize(thumbSize) {
         if (settings.minScrollbarLength) {
           thumbSize = Math.max(thumbSize, settings.minScrollbarLength);
         }
+        if (settings.maxScrollbarLength) {
+          thumbSize = Math.min(thumbSize, settings.maxScrollbarLength);
+        }
         return thumbSize;
-      };
+      }
 
-      var updateScrollbarCss = function () {
-        var scrollbarXStyles = {width: containerWidth, display: scrollbarXActive ? "inherit": "none"};
+      function updateCss() {
+        var xRailOffset = {width: containerWidth, display: scrollbarXActive ? "inherit" : "none"};
         if (isRtl) {
-          scrollbarXStyles.left = $this.scrollLeft() + containerWidth - contentWidth;
+          xRailOffset.left = $this.scrollLeft() + containerWidth - contentWidth;
         } else {
-          scrollbarXStyles.left = $this.scrollLeft();
+          xRailOffset.left = $this.scrollLeft();
         }
         if (isScrollbarXUsingBottom) {
-          scrollbarXStyles.bottom = scrollbarXBottom - $this.scrollTop();
+          xRailOffset.bottom = scrollbarXBottom - $this.scrollTop();
         } else {
-          scrollbarXStyles.top = scrollbarXTop + $this.scrollTop();
+          xRailOffset.top = scrollbarXTop + $this.scrollTop();
         }
-        $scrollbarXRail.css(scrollbarXStyles);
+        $scrollbarXRail.css(xRailOffset);
 
-        var scrollbarYStyles = {top: $this.scrollTop(), height: containerHeight, display: scrollbarYActive ? "inherit": "none"};
+        var railYOffset = {top: $this.scrollTop(), height: containerHeight, display: scrollbarYActive ? "inherit" : "none"};
 
         if (isScrollbarYUsingRight) {
           if (isRtl) {
-            scrollbarYStyles.right = contentWidth - $this.scrollLeft() - scrollbarYRight - $scrollbarY.outerWidth();
+            railYOffset.right = contentWidth - $this.scrollLeft() - scrollbarYRight - $scrollbarY.outerWidth();
           } else {
-            scrollbarYStyles.right = scrollbarYRight - $this.scrollLeft();
+            railYOffset.right = scrollbarYRight - $this.scrollLeft();
           }
         } else {
           if (isRtl) {
-            scrollbarYStyles.left = $this.scrollLeft() + containerWidth * 2 - contentWidth - scrollbarYLeft - $scrollbarY.outerWidth();
+            railYOffset.left = $this.scrollLeft() + containerWidth * 2 - contentWidth - scrollbarYLeft - $scrollbarY.outerWidth();
           } else {
-            scrollbarYStyles.left = scrollbarYLeft + $this.scrollLeft();
+            railYOffset.left = scrollbarYLeft + $this.scrollLeft();
           }
         }
-        $scrollbarYRail.css(scrollbarYStyles);
+        $scrollbarYRail.css(railYOffset);
 
-        $scrollbarX.css({left: scrollbarXLeft, width: scrollbarXWidth});
-        $scrollbarY.css({top: scrollbarYTop, height: scrollbarYHeight});
-      };
+        $scrollbarX.css({left: scrollbarXLeft, width: scrollbarXWidth - railBorderXWidth});
+        $scrollbarY.css({top: scrollbarYTop, height: scrollbarYHeight - railBorderYWidth});
+      }
+
+      function updateGeometry() {
+        // Hide scrollbars not to affect scrollWidth and scrollHeight
+        $this.removeClass('ps-active-x');
+        $this.removeClass('ps-active-y');
 
-      var updateBarSizeAndPosition = function () {
         containerWidth = settings.includePadding ? $this.innerWidth() : $this.width();
         containerHeight = settings.includePadding ? $this.innerHeight() : $this.height();
         contentWidth = $this.prop('scrollWidth');
@@ -202,10 +208,9 @@
 
         if (!settings.suppressScrollX && containerWidth + settings.scrollXMarginOffset < contentWidth) {
           scrollbarXActive = true;
-          scrollbarXWidth = getSettingsAdjustedThumbSize(parseInt(containerWidth * containerWidth / contentWidth, 10));
-          scrollbarXLeft = parseInt($this.scrollLeft() * (containerWidth - scrollbarXWidth) / (contentWidth - containerWidth), 10);
-        }
-        else {
+          scrollbarXWidth = getThumbSize(int(containerWidth * containerWidth / contentWidth));
+          scrollbarXLeft = int($this.scrollLeft() * (containerWidth - scrollbarXWidth) / (contentWidth - containerWidth));
+        } else {
           scrollbarXActive = false;
           scrollbarXWidth = 0;
           scrollbarXLeft = 0;
@@ -214,88 +219,102 @@
 
         if (!settings.suppressScrollY && containerHeight + settings.scrollYMarginOffset < contentHeight) {
           scrollbarYActive = true;
-          scrollbarYHeight = getSettingsAdjustedThumbSize(parseInt(containerHeight * containerHeight / contentHeight, 10));
-          scrollbarYTop = parseInt($this.scrollTop() * (containerHeight - scrollbarYHeight) / (contentHeight - containerHeight), 10);
-        }
-        else {
+          scrollbarYHeight = getThumbSize(int(containerHeight * containerHeight / contentHeight));
+          scrollbarYTop = int($this.scrollTop() * (containerHeight - scrollbarYHeight) / (contentHeight - containerHeight));
+        } else {
           scrollbarYActive = false;
           scrollbarYHeight = 0;
           scrollbarYTop = 0;
           $this.scrollTop(0);
         }
 
-        if (scrollbarYTop >= containerHeight - scrollbarYHeight) {
-          scrollbarYTop = containerHeight - scrollbarYHeight;
-        }
         if (scrollbarXLeft >= containerWidth - scrollbarXWidth) {
           scrollbarXLeft = containerWidth - scrollbarXWidth;
         }
+        if (scrollbarYTop >= containerHeight - scrollbarYHeight) {
+          scrollbarYTop = containerHeight - scrollbarYHeight;
+        }
 
-        updateScrollbarCss();
-      };
+        updateCss();
 
-      var bindMouseScrollXHandler = function () {
-        var currentLeft,
-            currentPageX;
+        if (scrollbarXActive) {
+          $this.addClass('ps-active-x');
+        }
+        if (scrollbarYActive) {
+          $this.addClass('ps-active-y');
+        }
+      }
 
-        $scrollbarX.bind('mousedown' + eventClassName, function (e) {
+      function bindMouseScrollXHandler() {
+        var currentLeft;
+        var currentPageX;
+
+        var inScrolling = false;
+        $scrollbarX.bind(eventClass('mousedown'), function (e) {
           currentPageX = e.pageX;
           currentLeft = $scrollbarX.position().left;
           $scrollbarXRail.addClass('in-scrolling');
+          inScrolling = true;
           e.stopPropagation();
           e.preventDefault();
         });
 
-        $(document).bind('mousemove' + eventClassName, function (e) {
-          if ($scrollbarXRail.hasClass('in-scrolling')) {
-            updateContentScrollLeft(currentLeft, e.pageX - currentPageX);
+        $(ownerDocument).bind(eventClass('mousemove'), function (e) {
+          if (inScrolling) {
+            updateScrollLeft(currentLeft, e.pageX - currentPageX);
+            updateGeometry();
             e.stopPropagation();
             e.preventDefault();
           }
         });
 
-        $(document).bind('mouseup' + eventClassName, function (e) {
-          if ($scrollbarXRail.hasClass('in-scrolling')) {
+        $(ownerDocument).bind(eventClass('mouseup'), function (e) {
+          if (inScrolling) {
+            inScrolling = false;
             $scrollbarXRail.removeClass('in-scrolling');
           }
         });
 
         currentLeft =
         currentPageX = null;
-      };
+      }
 
-      var bindMouseScrollYHandler = function () {
-        var currentTop,
-            currentPageY;
+      function bindMouseScrollYHandler() {
+        var currentTop;
+        var currentPageY;
 
-        $scrollbarY.bind('mousedown' + eventClassName, function (e) {
+        var inScrolling = false;
+        $scrollbarY.bind(eventClass('mousedown'), function (e) {
           currentPageY = e.pageY;
           currentTop = $scrollbarY.position().top;
+          inScrolling = true;
           $scrollbarYRail.addClass('in-scrolling');
           e.stopPropagation();
           e.preventDefault();
         });
 
-        $(document).bind('mousemove' + eventClassName, function (e) {
-          if ($scrollbarYRail.hasClass('in-scrolling')) {
-            updateContentScrollTop(currentTop, e.pageY - currentPageY);
+        $(ownerDocument).bind(eventClass('mousemove'), function (e) {
+          if (inScrolling) {
+            updateScrollTop(currentTop, e.pageY - currentPageY);
+            updateGeometry();
             e.stopPropagation();
             e.preventDefault();
           }
         });
 
-        $(document).bind('mouseup' + eventClassName, function (e) {
-          if ($scrollbarYRail.hasClass('in-scrolling')) {
+        $(ownerDocument).bind(eventClass('mouseup'), function (e) {
+          if (inScrolling) {
+            inScrolling = false;
             $scrollbarYRail.removeClass('in-scrolling');
           }
         });
 
         currentTop =
         currentPageY = null;
-      };
+      }
 
       // check if the default scrolling should be prevented.
-      var shouldPreventDefault = function (deltaX, deltaY) {
+      function shouldPreventDefault(deltaX, deltaY) {
         var scrollTop = $this.scrollTop();
         if (deltaX === 0) {
           if (!scrollbarYActive) {
@@ -316,20 +335,41 @@
           }
         }
         return true;
-      };
-
-      // bind handlers
-      var bindMouseWheelHandler = function () {
-        // FIXME: Backward compatibility.
-        // After e.deltaFactor applied, wheelSpeed should have smaller value.
-        // Currently, there's no way to change the settings after the scrollbar initialized.
-        // But if the way is implemented in the future, wheelSpeed should be reset.
-        settings.wheelSpeed /= 10;
+      }
 
+      function bindMouseWheelHandler() {
         var shouldPrevent = false;
-        $this.bind('mousewheel' + eventClassName, function (e, deprecatedDelta, deprecatedDeltaX, deprecatedDeltaY) {
-          var deltaX = e.deltaX * e.deltaFactor || deprecatedDeltaX,
-              deltaY = e.deltaY * e.deltaFactor || deprecatedDeltaY;
+
+        function getDeltaFromEvent(e) {
+          var deltaX = e.originalEvent.deltaX;
+          var deltaY = -1 * e.originalEvent.deltaY;
+
+          if (typeof deltaX === "undefined" || typeof deltaY === "undefined") {
+            // OS X Safari
+            deltaX = -1 * e.originalEvent.wheelDeltaX / 6;
+            deltaY = e.originalEvent.wheelDeltaY / 6;
+          }
+
+          if (e.originalEvent.deltaMode && e.originalEvent.deltaMode === 1) {
+            // Firefox in deltaMode 1: Line scrolling
+            deltaX *= 10;
+            deltaY *= 10;
+          }
+
+          if (deltaX !== deltaX && deltaY !== deltaY/* NaN checks */) {
+            // IE in some mouse drivers
+            deltaX = 0;
+            deltaY = e.originalEvent.wheelDelta;
+          }
+
+          return [deltaX, deltaY];
+        }
+
+        function mousewheelHandler(e) {
+          var delta = getDeltaFromEvent(e);
+
+          var deltaX = delta[0];
+          var deltaY = delta[1];
 
           shouldPrevent = false;
           if (!settings.useBothWheelAxes) {
@@ -357,41 +397,52 @@
             shouldPrevent = true;
           }
 
-          // update bar position
-          updateBarSizeAndPosition();
+          updateGeometry();
 
           shouldPrevent = (shouldPrevent || shouldPreventDefault(deltaX, deltaY));
           if (shouldPrevent) {
             e.stopPropagation();
             e.preventDefault();
           }
-        });
+        }
 
-        // fix Firefox scroll problem
-        $this.bind('MozMousePixelScroll' + eventClassName, function (e) {
-          if (shouldPrevent) {
-            e.preventDefault();
-          }
-        });
-      };
+        if (typeof window.onwheel !== "undefined") {
+          $this.bind(eventClass('wheel'), mousewheelHandler);
+        } else if (typeof window.onmousewheel !== "undefined") {
+          $this.bind(eventClass('mousewheel'), mousewheelHandler);
+        }
+      }
 
-      var bindKeyboardHandler = function () {
+      function bindKeyboardHandler() {
         var hovered = false;
-        $this.bind('mouseenter' + eventClassName, function (e) {
+        $this.bind(eventClass('mouseenter'), function (e) {
           hovered = true;
         });
-        $this.bind('mouseleave' + eventClassName, function (e) {
+        $this.bind(eventClass('mouseleave'), function (e) {
           hovered = false;
         });
 
         var shouldPrevent = false;
-        $(document).bind('keydown' + eventClassName, function (e) {
-          if (!hovered || $(document.activeElement).is(":input,[contenteditable]")) {
+        $(ownerDocument).bind(eventClass('keydown'), function (e) {
+          if (e.isDefaultPrevented && e.isDefaultPrevented()) {
             return;
           }
 
-          var deltaX = 0,
-              deltaY = 0;
+          if (!hovered) {
+            return;
+          }
+
+          var activeElement = document.activeElement ? document.activeElement : ownerDocument.activeElement;
+          // go deeper if element is a webcomponent
+          while (activeElement.shadowRoot) {
+            activeElement = activeElement.shadowRoot.activeElement;
+          }
+          if ($(activeElement).is(":input,[contenteditable]")) {
+            return;
+          }
+
+          var deltaX = 0;
+          var deltaY = 0;
 
           switch (e.which) {
           case 37: // left
@@ -414,10 +465,18 @@
             deltaY = -90;
             break;
           case 35: // end
-            deltaY = -containerHeight;
+            if (e.ctrlKey) {
+              deltaY = -contentHeight;
+            } else {
+              deltaY = -containerHeight;
+            }
             break;
           case 36: // home
-            deltaY = containerHeight;
+            if (e.ctrlKey) {
+              deltaY = $this.scrollTop();
+            } else {
+              deltaY = containerHeight;
+            }
             break;
           default:
             return;
@@ -431,17 +490,17 @@
             e.preventDefault();
           }
         });
-      };
+      }
 
-      var bindRailClickHandler = function () {
-        var stopPropagation = function (e) { e.stopPropagation(); };
+      function bindRailClickHandler() {
+        function stopPropagation(e) { e.stopPropagation(); }
 
-        $scrollbarY.bind('click' + eventClassName, stopPropagation);
-        $scrollbarYRail.bind('click' + eventClassName, function (e) {
-          var halfOfScrollbarLength = parseInt(scrollbarYHeight / 2, 10),
-              positionTop = e.pageY - $scrollbarYRail.offset().top - halfOfScrollbarLength,
-              maxPositionTop = containerHeight - scrollbarYHeight,
-              positionRatio = positionTop / maxPositionTop;
+        $scrollbarY.bind(eventClass('click'), stopPropagation);
+        $scrollbarYRail.bind(eventClass('click'), function (e) {
+          var halfOfScrollbarLength = int(scrollbarYHeight / 2);
+          var positionTop = e.pageY - $scrollbarYRail.offset().top - halfOfScrollbarLength;
+          var maxPositionTop = containerHeight - scrollbarYHeight;
+          var positionRatio = positionTop / maxPositionTop;
 
           if (positionRatio < 0) {
             positionRatio = 0;
@@ -452,12 +511,12 @@
           $this.scrollTop((contentHeight - containerHeight) * positionRatio);
         });
 
-        $scrollbarX.bind('click' + eventClassName, stopPropagation);
-        $scrollbarXRail.bind('click' + eventClassName, function (e) {
-          var halfOfScrollbarLength = parseInt(scrollbarXWidth / 2, 10),
-              positionLeft = e.pageX - $scrollbarXRail.offset().left - halfOfScrollbarLength,
-              maxPositionLeft = containerWidth - scrollbarXWidth,
-              positionRatio = positionLeft / maxPositionLeft;
+        $scrollbarX.bind(eventClass('click'), stopPropagation);
+        $scrollbarXRail.bind(eventClass('click'), function (e) {
+          var halfOfScrollbarLength = int(scrollbarXWidth / 2);
+          var positionLeft = e.pageX - $scrollbarXRail.offset().left - halfOfScrollbarLength;
+          var maxPositionLeft = containerWidth - scrollbarXWidth;
+          var positionRatio = positionLeft / maxPositionLeft;
 
           if (positionRatio < 0) {
             positionRatio = 0;
@@ -467,58 +526,172 @@
 
           $this.scrollLeft((contentWidth - containerWidth) * positionRatio);
         });
-      };
+      }
 
-      // bind mobile touch handler
-      var bindMobileTouchHandler = function () {
-        var applyTouchMove = function (differenceX, differenceY) {
+      function bindSelectionHandler() {
+        function getRangeNode() {
+          var selection = window.getSelection ? window.getSelection() :
+                          document.getSlection ? document.getSlection() : {rangeCount: 0};
+          if (selection.rangeCount === 0) {
+            return null;
+          } else {
+            return selection.getRangeAt(0).commonAncestorContainer;
+          }
+        }
+
+        var scrollingLoop = null;
+        var scrollDiff = {top: 0, left: 0};
+        function startScrolling() {
+          if (!scrollingLoop) {
+            scrollingLoop = setInterval(function () {
+              $this.scrollTop($this.scrollTop() + scrollDiff.top);
+              $this.scrollLeft($this.scrollLeft() + scrollDiff.left);
+              updateGeometry();
+            }, 50); // every .1 sec
+          }
+        }
+        function stopScrolling() {
+          if (scrollingLoop) {
+            clearInterval(scrollingLoop);
+            scrollingLoop = null;
+          }
+          $scrollbarXRail.removeClass('in-scrolling');
+          $scrollbarYRail.removeClass('in-scrolling');
+        }
+
+        var isSelected = false;
+        $(ownerDocument).bind(eventClass('selectionchange'), function (e) {
+          if ($.contains($this[0], getRangeNode())) {
+            isSelected = true;
+          } else {
+            isSelected = false;
+            stopScrolling();
+          }
+        });
+        $(window).bind(eventClass('mouseup'), function (e) {
+          if (isSelected) {
+            isSelected = false;
+            stopScrolling();
+          }
+        });
+
+        $(window).bind(eventClass('mousemove'), function (e) {
+          if (isSelected) {
+            var mousePosition = {x: e.pageX, y: e.pageY};
+            var containerOffset = $this.offset();
+            var containerGeometry = {
+              left: containerOffset.left,
+              right: containerOffset.left + $this.outerWidth(),
+              top: containerOffset.top,
+              bottom: containerOffset.top + $this.outerHeight()
+            };
+
+            if (mousePosition.x < containerGeometry.left + 3) {
+              scrollDiff.left = -5;
+              $scrollbarXRail.addClass('in-scrolling');
+            } else if (mousePosition.x > containerGeometry.right - 3) {
+              scrollDiff.left = 5;
+              $scrollbarXRail.addClass('in-scrolling');
+            } else {
+              scrollDiff.left = 0;
+            }
+
+            if (mousePosition.y < containerGeometry.top + 3) {
+              if (containerGeometry.top + 3 - mousePosition.y < 5) {
+                scrollDiff.top = -5;
+              } else {
+                scrollDiff.top = -20;
+              }
+              $scrollbarYRail.addClass('in-scrolling');
+            } else if (mousePosition.y > containerGeometry.bottom - 3) {
+              if (mousePosition.y - containerGeometry.bottom + 3 < 5) {
+                scrollDiff.top = 5;
+              } else {
+                scrollDiff.top = 20;
+              }
+              $scrollbarYRail.addClass('in-scrolling');
+            } else {
+              scrollDiff.top = 0;
+            }
+
+            if (scrollDiff.top === 0 && scrollDiff.left === 0) {
+              stopScrolling();
+            } else {
+              startScrolling();
+            }
+          }
+        });
+      }
+
+      function bindTouchHandler(supportsTouch, supportsIePointer) {
+        function applyTouchMove(differenceX, differenceY) {
           $this.scrollTop($this.scrollTop() - differenceY);
           $this.scrollLeft($this.scrollLeft() - differenceX);
 
-          // update bar position
-          updateBarSizeAndPosition();
-        };
+          updateGeometry();
+        }
 
-        var startCoords = {},
-            startTime = 0,
-            speed = {},
-            breakingProcess = null,
-            inGlobalTouch = false;
+        var startOffset = {};
+        var startTime = 0;
+        var speed = {};
+        var breakingProcess = null;
+        var inGlobalTouch = false;
+        var inLocalTouch = false;
 
-        $(window).bind("touchstart" + eventClassName, function (e) {
+        function globalTouchStart(e) {
           inGlobalTouch = true;
-        });
-        $(window).bind("touchend" + eventClassName, function (e) {
+        }
+        function globalTouchEnd(e) {
           inGlobalTouch = false;
-        });
+        }
 
-        $this.bind("touchstart" + eventClassName, function (e) {
-          var touch = e.originalEvent.targetTouches[0];
-
-          startCoords.pageX = touch.pageX;
-          startCoords.pageY = touch.pageY;
-
-          startTime = (new Date()).getTime();
-
-          if (breakingProcess !== null) {
-            clearInterval(breakingProcess);
+        function getTouch(e) {
+          if (e.originalEvent.targetTouches) {
+            return e.originalEvent.targetTouches[0];
+          } else {
+            // Maybe IE pointer
+            return e.originalEvent;
           }
+        }
+        function shouldHandle(e) {
+          var event = e.originalEvent;
+          if (event.targetTouches && event.targetTouches.length === 1) {
+            return true;
+          }
+          if (event.pointerType && event.pointerType !== 'mouse') {
+            return true;
+          }
+          return false;
+        }
+        function touchStart(e) {
+          if (shouldHandle(e)) {
+            inLocalTouch = true;
 
-          e.stopPropagation();
-        });
-        $this.bind("touchmove" + eventClassName, function (e) {
-          if (!inGlobalTouch && e.originalEvent.targetTouches.length === 1) {
-            var touch = e.originalEvent.targetTouches[0];
+            var touch = getTouch(e);
 
-            var currentCoords = {};
-            currentCoords.pageX = touch.pageX;
-            currentCoords.pageY = touch.pageY;
+            startOffset.pageX = touch.pageX;
+            startOffset.pageY = touch.pageY;
 
-            var differenceX = currentCoords.pageX - startCoords.pageX,
-              differenceY = currentCoords.pageY - startCoords.pageY;
+            startTime = (new Date()).getTime();
+
+            if (breakingProcess !== null) {
+              clearInterval(breakingProcess);
+            }
+
+            e.stopPropagation();
+          }
+        }
+        function touchMove(e) {
+          if (!inGlobalTouch && inLocalTouch && shouldHandle(e)) {
+            var touch = getTouch(e);
+
+            var currentOffset = {pageX: touch.pageX, pageY: touch.pageY};
+
+            var differenceX = currentOffset.pageX - startOffset.pageX;
+            var differenceY = currentOffset.pageY - startOffset.pageY;
 
             applyTouchMove(differenceX, differenceY);
-            startCoords = currentCoords;
+            startOffset = currentOffset;
 
             var currentTime = (new Date()).getTime();
 
@@ -529,35 +702,64 @@
               startTime = currentTime;
             }
 
+            e.stopPropagation();
             e.preventDefault();
           }
+        }
+        function touchEnd(e) {
+          if (!inGlobalTouch && inLocalTouch) {
+            inLocalTouch = false;
+
+            clearInterval(breakingProcess);
+            breakingProcess = setInterval(function () {
+              if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
+                clearInterval(breakingProcess);
+                return;
+              }
+
+              applyTouchMove(speed.x * 30, speed.y * 30);
+
+              speed.x *= 0.8;
+              speed.y *= 0.8;
+            }, 10);
+          }
+        }
+
+        if (supportsTouch) {
+          $(window).bind(eventClass("touchstart"), globalTouchStart);
+          $(window).bind(eventClass("touchend"), globalTouchEnd);
+          $this.bind(eventClass("touchstart"), touchStart);
+          $this.bind(eventClass("touchmove"), touchMove);
+          $this.bind(eventClass("touchend"), touchEnd);
+        }
+
+        if (supportsIePointer) {
+          if (window.PointerEvent) {
+            $(window).bind(eventClass("pointerdown"), globalTouchStart);
+            $(window).bind(eventClass("pointerup"), globalTouchEnd);
+            $this.bind(eventClass("pointerdown"), touchStart);
+            $this.bind(eventClass("pointermove"), touchMove);
+            $this.bind(eventClass("pointerup"), touchEnd);
+          } else if (window.MSPointerEvent) {
+            $(window).bind(eventClass("MSPointerDown"), globalTouchStart);
+            $(window).bind(eventClass("MSPointerUp"), globalTouchEnd);
+            $this.bind(eventClass("MSPointerDown"), touchStart);
+            $this.bind(eventClass("MSPointerMove"), touchMove);
+            $this.bind(eventClass("MSPointerUp"), touchEnd);
+          }
+        }
+      }
+
+      function bindScrollHandler() {
+        $this.bind(eventClass('scroll'), function (e) {
+          updateGeometry();
         });
-        $this.bind("touchend" + eventClassName, function (e) {
-          clearInterval(breakingProcess);
-          breakingProcess = setInterval(function () {
-            if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
-              clearInterval(breakingProcess);
-              return;
-            }
+      }
 
-            applyTouchMove(speed.x * 30, speed.y * 30);
-
-            speed.x *= 0.8;
-            speed.y *= 0.8;
-          }, 10);
-        });
-      };
-
-      var bindScrollHandler = function () {
-        $this.bind('scroll' + eventClassName, function (e) {
-          updateBarSizeAndPosition();
-        });
-      };
-
-      var destroy = function () {
-        $this.unbind(eventClassName);
-        $(window).unbind(eventClassName);
-        $(document).unbind(eventClassName);
+      function destroy() {
+        $this.unbind(eventClass());
+        $(window).unbind(eventClass());
+        $(ownerDocument).unbind(eventClass());
         $this.data('perfect-scrollbar', null);
         $this.data('perfect-scrollbar-update', null);
         $this.data('perfect-scrollbar-destroy', null);
@@ -588,87 +790,35 @@
         isScrollbarYUsingRight =
         scrollbarYLeft =
         isRtl =
-        eventClassName = null;
-      };
-
-      var ieSupport = function (version) {
-        $this.addClass('ie').addClass('ie' + version);
-
-        var bindHoverHandlers = function () {
-          var mouseenter = function () {
-            $(this).addClass('hover');
-          };
-          var mouseleave = function () {
-            $(this).removeClass('hover');
-          };
-          $this.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
-          $scrollbarXRail.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
-          $scrollbarYRail.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
-          $scrollbarX.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
-          $scrollbarY.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
-        };
-
-        var fixIe6ScrollbarPosition = function () {
-          updateScrollbarCss = function () {
-            var scrollbarXStyles = {left: scrollbarXLeft + $this.scrollLeft(), width: scrollbarXWidth};
-            if (isScrollbarXUsingBottom) {
-              scrollbarXStyles.bottom = scrollbarXBottom;
-            } else {
-              scrollbarXStyles.top = scrollbarXTop;
-            }
-            $scrollbarX.css(scrollbarXStyles);
-
-            var scrollbarYStyles = {top: scrollbarYTop + $this.scrollTop(), height: scrollbarYHeight};
-            if (isScrollbarYUsingRight) {
-              scrollbarYStyles.right = scrollbarYRight;
-            } else {
-              scrollbarYStyles.left = scrollbarYLeft;
-            }
-
-            $scrollbarY.css(scrollbarYStyles);
-            $scrollbarX.hide().show();
-            $scrollbarY.hide().show();
-          };
-        };
-
-        if (version === 6) {
-          bindHoverHandlers();
-          fixIe6ScrollbarPosition();
-        }
-      };
+        eventClass = null;
+      }
 
       var supportsTouch = (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch);
+      var supportsIePointer = window.navigator.msMaxTouchPoints !== null;
 
-      var initialize = function () {
-        var ieMatch = navigator.userAgent.toLowerCase().match(/(msie) ([\w.]+)/);
-        if (ieMatch && ieMatch[1] === 'msie') {
-          // must be executed at first, because 'ieSupport' may addClass to the container
-          ieSupport(parseInt(ieMatch[2], 10));
-        }
-
-        updateBarSizeAndPosition();
+      function initialize() {
+        updateGeometry();
         bindScrollHandler();
         bindMouseScrollXHandler();
         bindMouseScrollYHandler();
         bindRailClickHandler();
-        if (supportsTouch) {
-          bindMobileTouchHandler();
-        }
-        if ($this.mousewheel) {
-          bindMouseWheelHandler();
+        bindSelectionHandler();
+        bindMouseWheelHandler();
+
+        if (supportsTouch || supportsIePointer) {
+          bindTouchHandler(supportsTouch, supportsIePointer);
         }
         if (settings.useKeyboard) {
           bindKeyboardHandler();
         }
         $this.data('perfect-scrollbar', $this);
-        $this.data('perfect-scrollbar-update', updateBarSizeAndPosition);
+        $this.data('perfect-scrollbar-update', updateGeometry);
         $this.data('perfect-scrollbar-destroy', destroy);
-      };
+      }
 
-      // initialize
       initialize();
 
       return $this;
     });
   };
-}));
+});