Release 0.6.3

1. Improve toInt
2. Stop propagating click event through scrollbar rails.
3. IE touch device fix.
4. RTL support.
5. Other minor fixes.

.csslintrc

@@ -1,3 +0,0 @@
-{
-  "adjoining-classes": false
-}

.editorconfig

@@ -0,0 +1,14 @@
+# EditorConfig: http://editorconfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+# Indentation for JS & SCSS
+[*.{js, scss}]
+indent_style = space
+indent_size = 2

.eslintrc

@@ -0,0 +1,20 @@
+{
+  "env" : {
+    "node": true,
+    "browser": true
+  },
+  "globals": {
+    "$": true,
+    "define": true
+  },
+  "rules" : {
+    "quotes": false,
+    "space-after-keywords": [2, "always", {"checkFunctionKeyword": true}],
+    "space-before-blocks": [2, "always"],
+    "brace-style": [2, "1tbs", { "allowSingleLine": false}],
+    "spaced-line-comment": [2, "always"],
+    "radix": [2, "always"],
+    "key-spacing": [2, "always", {"beforeColon": false, "afterColon": true}],
+    "no-multiple-empty-lines": [2, {max: 1}],
+  }
+}

.gitignore

@@ -1,3 +1,4 @@
 .DS_Store
 node_modules
-bower_components
+/dist
+.idea

.jshintrc

@@ -1,61 +0,0 @@
-{
-    "passfail"      : false,
-    "maxerr"        : 100,
-
-    "browser"       : true,
-
-    "node"          : true,
-    "rhino"         : false,
-    "couch"         : false,
-    "wsh"           : false,
-
-    "jquery"        : true,
-    "prototypejs"   : false,
-    "mootools"      : false,
-    "dojo"          : false,
-
-    "predef"        : [
-        "require",
-        "define"
-    ],
-
-    "debug"         : false,
-    "devel"         : true,
-
-    "strict"        : true,
-    "globalstrict"  : false,
-
-    "asi"           : false,
-    "laxbreak"      : false,
-    "bitwise"       : true,
-    "boss"          : false,
-    "curly"         : true,
-    "eqeqeq"        : true,
-    "eqnull"        : false,
-    "evil"          : false,
-    "expr"          : false,
-    "forin"         : false,
-    "immed"         : true,
-    "latedef"       : true,
-    "loopfunc"      : false,
-    "noarg"         : true,
-    "regexp"        : true,
-    "regexdash"     : false,
-    "scripturl"     : true,
-    "shadow"        : false,
-    "supernew"      : false,
-    "undef"         : true,
-
-    "newcap"        : true,
-    "noempty"       : false,
-    "nonew"         : true,
-    "nomen"         : false,
-    "onevar"        : false,
-    "plusplus"      : false,
-    "sub"           : false,
-    "trailing"      : true,
-    "white"         : true,
-    "indent"        : 2,
-    "laxcomma"      : true,
-    "camelcase"     : true
-}

.npmignore

@@ -0,0 +1,9 @@
+.DS_Store
+
+/.eslintrc
+/.gitignore
+/.travis.yml
+/gulpfile.js
+/examples
+
+node_modules

.travis.yml

@@ -1,5 +1,17 @@
 language: node_js
 node_js:
-  - "0.10"
+- '0.10'
 before_script:
-  - npm install -g grunt-cli
+- npm install -g gulp
+deploy:
+  provider: releases
+  api_key:
+    secure: jMfEk/5oF5NybZlrI2/QA3Gs2fYvE38GQQPyTVBgH5gBZqnaH4ij28fegxercTuzqO4AMGK7BvAmxNd6Wf95CYt72uuiRKFCpRto3/8kBh6TNS1SWQCB6U/heccr4hHGvPViCkkidPCAzAjRLe0TIkrHhJt1nQ5u/d6ZI3++e/0=
+  file: ./dist/perfect-scrollbar.zip
+  on:
+    repo: noraesae/perfect-scrollbar
+    branch: master
+    tags: true
+before_deploy:
+- gulp
+- gulp compress

Gruntfile.js

@@ -1,83 +0,0 @@
-'use strict';
-
-module.exports = function (grunt) {
-
-  // Project configuration.
-  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' +
-      '<%= pkg.homepage ? "* " + pkg.homepage + "\\n" : "" %>' +
-      '* Copyright (c) <%= grunt.template.today("yyyy") %> <%= pkg.author.name %>;' +
-      ' Licensed <%= _.pluck(pkg.licenses, "type").join(", ") %> */\n',
-    clean: {
-      files: ['min']
-    },
-    // Task configuration.
-    uglify: {
-      options: {
-        banner: '<%= banner %>'
-      },
-      min: {
-        files: {
-          'min/perfect-scrollbar.min.js': ['src/perfect-scrollbar.js']
-        }
-      }
-    },
-    jshint: {
-      gruntfile: {
-        options: {
-          jshintrc: '.jshintrc'
-        },
-        src: 'Gruntfile.js'
-      },
-      src: {
-        options: {
-          jshintrc: '.jshintrc'
-        },
-        src: 'src/perfect-scrollbar.js'
-      }
-    },
-    csslint: {
-      strict: {
-        options: {
-          csslintrc: '.csslintrc',
-          'import': 2
-        },
-        src: ['src/perfect-scrollbar.css']
-      }
-    },
-    cssmin: {
-      options: {
-        banner: '<%= banner %>'
-      },
-      minify: {
-        expand: true,
-        cwd: 'src/',
-        src: ['perfect-scrollbar.css'],
-        dest: 'min/',
-        ext: '.min.css'
-      }
-    }
-  });
-
-  // These plugins provide necessary tasks.
-  grunt.loadNpmTasks('grunt-contrib-uglify');
-  grunt.loadNpmTasks('grunt-contrib-jshint');
-  grunt.loadNpmTasks('grunt-contrib-clean');
-  grunt.loadNpmTasks('grunt-contrib-csslint');
-  grunt.loadNpmTasks('grunt-contrib-cssmin');
-
-  grunt.registerTask('default', 'List commands', function () {
-    grunt.log.writeln("");
-
-    grunt.log.writeln("Run 'grunt lint' to lint the source files");
-    grunt.log.writeln("Run 'grunt build' to minify the source files");
-  });
-
-  grunt.registerTask('lint', ['jshint', 'csslint']);
-  grunt.registerTask('build', ['clean', 'uglify', 'cssmin']);
-  grunt.registerTask('travis', ['lint']);
-
-};

README.md

@@ -1,75 +1,266 @@
-perfect-scrollbar [![Travis CI](https://travis-ci.org/noraesae/perfect-scrollbar.svg?branch=master)](https://travis-ci.org/noraesae/perfect-scrollbar)
-=================
+# `perfect-scrollbar`
 
-Tiny but perfect jQuery scrollbar plugin
+Minimalistic but perfect custom scrollbar plugin
 
-Why perfect-scrollbar?
-------------------
+[![Travis CI](https://travis-ci.org/noraesae/perfect-scrollbar.svg?branch=master)](https://travis-ci.org/noraesae/perfect-scrollbar)
 
-I worked on a personal project recently, and I was trying to find the jQuery scrollbar plugin that's *perfect*. But there was no *perfect* scrollbar plugin. That's why I decided to make one.
+If you want information of old versions<0.6.0, please refer to
+[an old documentation](https://github.com/noraesae/perfect-scrollbar/tree/0.5.9).
 
-perfect-scrollbar is very tiny but *perfect* (for me, and maybe for the most of developers) jQuery scrollbar plugin.  
-I hope you love this!
+## Why perfect-scrollbar?
 
-Demo: http://noraesae.github.com/perfect-scrollbar/
+I was once working on a personal project, and trying to find the jQuery
+scrollbar plugin that's *perfect*. But there was no *perfect* one.
+That's why I decided to make one.
 
-What does *perfect* mean?
----------------------
+perfect-scrollbar is minimalistic but *perfect* (for me, and maybe for most developers)
+scrollbar plugin working with jQuery or vanilla JavaScript as well.
+
+I hope you love it!
+
+## [Demo](http://noraesae.github.com/perfect-scrollbar/)
+
+[It's on the GitHub Pages](http://noraesae.github.com/perfect-scrollbar/).
+
+## What does *perfect* mean?
 
 *perfect* means...
 
 * There should be no css change on any original element.
 * The scrollbar should not affect the original design layout.
 * The design of the scrollbar should be (nearly) fully customizable.
-* If the size of the container or the content changes, the scrollbar size and position should be able to change.
+* If the size of the container or the content changes, the scrollbar
+  size and position should be able to change.
+* *New!* It should work with vanilla JavaScript and major tools like
+  NPM or Browserify.
 
-Then perfect-scrollbar is really *perfect*?
--------------------------------------------
+## Then perfect-scrollbar is really *perfect*?
 
-Yes! the only thing that's not *perfect* is my English.
-
-* perfect-scrollbar has some requirements, but doesn't change or add any style on original elements.
-* perfect-scrollbar is designed not to have width or height. It's fixed on the right and bottom side of the container.
-* You can change nearly all css styles of the scrollbar. The scrollbar design has no dependency on scripts.
-* perfect-scrollbar support 'update' function. Whenever you need to update the size or position of the scrollbar, just update.
-* Additionally, perfect-scrollbar do use 'scrollTop' and 'scrollLeft', not absolute position or something messy.
+* perfect-scrollbar has some requirements, but doesn't change or add
+  any style on original elements.
+* perfect-scrollbar is designed not to have width or height. It's fixed
+  on the right and bottom side of the container.
+* You can change nearly all css styles of the scrollbar. The scrollbar
+  design has no dependency on scripts.
+* perfect-scrollbar supports an 'update' function. Whenever you need
+  to update the size or position of the scrollbar, just update.
+* Additionally, perfect-scrollbar uses 'scrollTop' and 'scrollLeft',
+  not absolute positioning or something messy.
+* perfect-scrollbar supports RTL perfectly on both WebKit and Gecko based browsers.
 
 It's cool, isn't it?
 
-Install
--------
+## Install
 
-You can download the latest stable version with download links in [Github Page](http://noraesae.github.io/perfect-scrollbar/). You also can find all releases in [Releases](https://github.com/noraesae/perfect-scrollbar/releases) 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.
+The best way to install and use perfect-scrollbar is with NPM.
+It's registered on [npm](https://www.npmjs.org/package/perfect-scrollbar) as `perfect-scrollbar`.
 
 ```
-git clone https://github.com/noraesae/perfect-scrollbar.git
-cd perfect-scrollbar/src
+$ npm install perfect-scrollbar
 ```
 
-You can use [Bower](http://bower.io/) to install the plugin. The plugin is registered as `perfect-scrollbar`.
+You can download the latest stable version with download links [here](http://noraesae.github.io/perfect-scrollbar/).
+You also can find all releases on [Releases](https://github.com/noraesae/perfect-scrollbar/releases).
+
+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 may
+have been fixed.
 
 ```
-bower install perfect-scrollbar
+$ git clone https://github.com/noraesae/perfect-scrollbar.git
+$ cd perfect-scrollbar/src
+$ npm install
+$ gulp # will lint and build the source code.
 ```
 
-Requirements
-------------
 
-To make this plugin *perfect*, some requirements were not avoidable. But they're all very trivial and there's nothing to worry about.
+There is a Bower package for perfect-scrollbar as well. It is managed
+under the [perfect-scrollbar-bower](https://github.com/noraesae/perfect-scrollbar-bower)
+repository. The plugin is registered as `perfect-scrollbar`.
+
+```
+$ bower 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
+
+To make this plugin *perfect*, some requirements were unavoidable.
+But, they're all very trivial and there is nothing to worry about.
+
+The following requirements should meet.
 
 * the container must have a 'position' css style.
+
+The following requirements are included in the basic CSS, but please
+keep in mind when you'd like to change the CSS files.
+
 * the container must have an 'overflow:hidden' css style.
 * the scrollbar's position must be 'absolute'.
-* the scrollbar-x must have a 'bottom' css style, and the scrollbar-y must have a 'right' css style.
+* the scrollbar-x must have a 'bottom' css style, and the scrollbar-y
+  must have a 'right' css style.
 
-The requirement below is for perfect-scrollbar <= 0.3.4
+## How to use
 
-* there must be the *one* content element(like div) for the container.
+First of all, please check if the container element meets the
+requirements.
 
-Optional parameters
--------------------
+```html
+<link rel='stylesheet' href='dist/css/perfect-scrollbar.css' />
+<style>
+  #container {
+    position: relative;
+    height: 100%; /* Or whatever you want (eg. 400px) */
+  }
+</style>
+```
+
+I would recommend using the plugin with NPM and CommonJS module system
+like Browserify.
+
+```javascript
+var Ps = require('perfect-scrollbar');
+```
+
+Or you can just load the script file as usual.
+
+```html
+<script src='dist/js/perfect-scrollbar.js'></script>
+```
+
+To initialise the plugin, `Ps.initialize` is used.
+
+```javascript
+var container = document.getElementById('container');
+Ps.initialize(container);
+```
+
+It can be initialised with optional parameters.
+
+```javascript
+Ps.initialize(container, {
+  wheelSpeed: 2,
+  wheelPropagation: true,
+  minScrollbarLength: 20
+});
+```
+
+If the size of your container or content changes, call `update`.
+
+```javascript
+Ps.update(container);
+```
+
+If you want to destory the scrollbar, use `destroy`.
+
+```javascript
+Ps.destroy(container);
+```
+
+If you want to scroll to somewhere, just use a `scrollTop`
+property and update.
+
+```javascript
+container.scrollTop = 0;
+Ps.update(container);
+```
+
+You can also get information about how to use the plugin
+from code in the `examples` directory of the source tree.
+
+## jQuery
+
+As you may already know, perfect-scrollbar was a jQuery plugin.
+And it *is* as well. There's a jQuery adaptor and the plugin can
+be used in the same way it used to be used before.
+
+I also recommend using NPM and CommonJS here, but it's not mandatory.
+
+```javascript
+var $ = require('jquery');
+require('perfect-scrollbar/jquery')($);
+```
+
+For sure, you can just import a built script.
+
+```html
+<script src='dist/js/perfect-scrollbar.jquery.js'></script>
+```
+
+After importing it, you can use the plugin in the usual way.
+
+```javascript
+$('#container').perfectScrollbar();          // Initialize
+$('#container').perfectScrollbar({ ... });   // with options
+$('#container').perfectScrollbar('update');  // Update
+$('#container').perfectScrollbar('destroy'); // Destroy
+```
+
+## RequireJS  usage
+
+For RequireJS loader, no need to write shim, simply import two libs:
+
+```javascript
+require.config({
+  paths: {
+    perfectScrollbarJQuery: '.../perfect-scrollbar.jquery',
+    perfectScrollbar: '.../perfect-scrollbar',
+  }
+  ...
+})
+```
+
+
+and load `perfectScrollbar` in the initialiser of your app:
+
+```javascript
+# for vanilla JS:
+window.Ps = require('perfectScrollbar');
+
+# for jQuery:
+require('perfectScrollbarJQuery');
+```
+
+
+## AngularJS + RequireJS usage
+
+With the require.config settings above, at the beginning of your app module
+definition, you can have following code:
+
+```javascript
+define([
+  'angular',
+  'perfectScrollbar',
+  'perfectScrollbarJquery'
+],
+function (angular) {
+  var myApp = angular.module('myApp', [])
+  .run(function() {
+    window.Ps = require('perfectScrollbar');
+    require('perfectScrollbarJQuery');
+  })
+  return myApp;
+});
+```
+
+And initialise perfectScrollbar in a controller:
+
+```javascript
+# by vanilla JS:
+var container = document.getElementById('imgLoader');
+Ps.initialize(container);
+Ps.update(container);
+
+# or by jQuery:
+var imgLoader = $("#imgLoader")
+imgLoader.perfectScrollbar();
+```
+
+## Optional parameters
 
 perfect-scrollbar supports optional parameters.
 
@@ -78,10 +269,12 @@ The scroll speed applied to mousewheel event.
 **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*  
+If this option is true, when the scroll reaches the end of the side, mousewheel event will be propagated to parent element.  
 **Default: false**
 
+### swipePropagation
+If this option is true, when the scroll reaches the end of the side, touch scrolling will be propagated to parent element.  
+**Default: true**
 
 ### minScrollbarLength
 When set to an integer value, the thumb part of the scrollbar will not shrink below that number of pixels.  
@@ -115,62 +308,9 @@ The number of pixels the content width can surpass the container width without e
 The number of pixels the content height can surpass the container height without enabling the Y axis scroll bar. Allows some "wiggle room" or "offset break", so that Y axis scroll bar is not enabled just because of a few pixels.  
 **Default: 0**
 
-### includePadding
-When set to true, it uses `innerWidth` and `innerHeight` for the container size instead of `width` and `height`. When your container element has non-zero padding and the scrollbar layout looks weird, this option can be helpful.  
-**Default: false**
+## Contribution
 
-How to Use
-----------
-
-```html
-<style>
-  #Demo { 
-    position: 'relative';
-    height: 100%; // Or whatever you want (eg. 400px)
-    overflow: hidden;
-  }
-</style>
-<div id='Demo'>
-  <div>
-    ...
-  </div>
-</div>
-```
-When the html document is like above, just use like this:
-```javascript
-$('#Demo').perfectScrollbar();
-```
-
-With optional parameters:
-```javascript
-$("#Demo").perfectScrollbar({
-  wheelSpeed: 20,
-  wheelPropagation: true,
-  minScrollbarLength: 20
-})
-```
-
-If the size of your container or content changes:
-```javascript
-$('#Demo').perfectScrollbar('update');
-```
-If you want to destory the scrollbar:
-```javascript
-$('#Demo').perfectScrollbar('destroy');
-```
-
-If you want to scroll to somewhere, just use scroll-top css and update.
-```javascript
-$("#Demo").scrollTop(0);
-$("#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.
-
-Contribution
-------------
-
-#### Please read [Contributing](https://github.com/noraesae/perfect-scrollbar/wiki/Contributing) in the wiki before making any contibution.
+#### Please read [Contributing](https://github.com/noraesae/perfect-scrollbar/wiki/Contributing) in the wiki before making any contribution.
 
 
 I *really* welcome contributions! Please feel free to fork and issue pull requests when...
@@ -179,28 +319,29 @@ I *really* welcome contributions! Please feel free to fork and issue pull reques
 * You found a bug!
 * You're good at English and can help my bad English!
 
-For IE problems, please refer to [IE Support](https://github.com/noraesae/perfect-scrollbar#ie-support)
+For IE problems, please refer to [IE Support](https://github.com/noraesae/perfect-scrollbar#ie-support).
 
-IE Support
-----------
+## 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.**
+**The patches to fix problems in IE<=8 won't be accepted.**
 
-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.
+When old IEs should be supported, please fork the project and
+make patches personally.
 
-When old IEs should be supported, please fork the project and make patches personally.
+## Helpdesk
 
-Helpdesk
---------
+If you have any idea to improve this project or any problem
+using this, please feel free to upload an
+[issue](https://github.com/noraesae/perfect-scrollbar/issues).
 
-If you have any idea to improve this project or any problem using this, please feel free to upload an [issue](https://github.com/noraesae/perfect-scrollbar/issues).
+For common problems there is a
+[FAQ](https://github.com/noraesae/perfect-scrollbar/wiki/FAQ) wiki page. Please check the page before uploading an issue.
 
-License
--------
+## License
 
-The MIT License (MIT) Copyright (c) 2012, 2014 Hyeonje Alex Jun and other contributors.
+The MIT License (MIT) Copyright (c) 2015 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

@@ -1,24 +0,0 @@
-{
-  "name": "perfect-scrollbar",
-  "version": "0.4.11",
-  "homepage": "http://noraesae.github.io/perfect-scrollbar/",
-  "authors": [
-    "Hyeonje Alex Jun <me@noraesae.net>"
-  ],
-  "description": "Tiny but perfect jQuery scrollbar plugin",
-  "main": [
-    "src/perfect-scrollbar.css",
-    "src/perfect-scrollbar.js"
-  ],
-  "license": "MIT",
-  "ignore": [
-    "**/.*",
-    "node_modules",
-    "bower_components",
-    "test",
-    "tests"
-  ],
-  "dependencies": {
-    "jquery": ">=1.10"
-  }
-}

examples/always-visible.html

@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <title>perfect-scrollbar example</title>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      h1 { text-align: center; }
+      .container { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .container .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+    </style>
+    <style>
+      /* to make scrollbars always visible */
+      .always-visible.ps-container > .ps-scrollbar-x-rail,
+      .always-visible.ps-container > .ps-scrollbar-y-rail {
+        opacity: 0.6;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>Default</h1>
+    <div class="container">
+      <div class="content">
+      </div>
+    </div>
+
+    <h1>Always visible</h1>
+    <div class="container always-visible">
+      <div class="content">
+      </div>
+    </div>
+    <script>
+      window.onload = function () {
+        [].forEach.call(document.querySelectorAll('.container'), function (el) {
+          Ps.initialize(el);
+        });
+      };
+    </script>
+  </body>
+</html>

examples/iframe-content.html

@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <title>perfect-scrollbar example</title>
+      <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+      <style>
+        .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px;}
+        .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 +1,22 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <title>perfect-scrollbar example</title>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      #iframe { width: 100%; min-height: 450px; border: 0; }
+      html { direction: rtl; }
+    </style>
+  </head>
+  <body>
+    <iframe src="iframe-content.html" id="iframe"></iframe>
+    <script>
+      var iframe = document.querySelector('#iframe');
+      iframe.onload = function () {
+        Ps.initialize(iframe.contentDocument.querySelector('#Default'))
+      };
+    </script>
+  </body>
+</html>

examples/jquery.html

@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <title>perfect-scrollbar example</title>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
+    <script src="../dist/js/perfect-scrollbar.jquery.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+      .spacer { text-align:center }
+    </style>
+  </head>
+  <body>
+    <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:10</h1>
+    <div id="FastWheelSpeed" class="contentHolder">
+      <div class="content">
+      </div>
+    </div>
+    <h1 style="text-align:center">Slow: wheelSpeed:0.1</h1>
+    <div id="SlowWheelSpeed" class="contentHolder">
+      <div class="content">
+      </div>
+    </div>
+    <script>
+      $(document).ready(function ($) {
+        $('#Default').perfectScrollbar();
+        $('#FastWheelSpeed').perfectScrollbar({wheelSpeed: 10});
+        $('#SlowWheelSpeed').perfectScrollbar({wheelSpeed: 0.1});
+      });
+    </script>
+  </body>
+</html>
+

examples/options-default.html

@@ -1,27 +1,15 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-        .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>
-    <script>
-      jQuery(document).ready(function ($) {
-        "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>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+      .spacer { text-align:center }
+    </style>
   </head>
   <body>
     <div id="Default" class="contentHolder">
@@ -33,6 +21,20 @@
       Height <input type='text' id='height' value='400'>
       <button onclick='updateSize()'>Change!</button>
     </p>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+      };
+      var updateSize = function () {
+        var width = parseInt($('#width').value, 10);
+        var height = parseInt($('#height').value, 10);
+        var container = $('#Default');
+        container.style.width = width + 'px';
+        container.style.height = height + 'px';
+        Ps.update(document.querySelector('#Default'));
+      };
+    </script>
   </body>
 </html>
 

examples/options-minScrollbarLength.html

@@ -1,23 +1,15 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-          .contentHolder { position:relative; margin:0px auto; padding:0px; width: 640px; height: 360px; overflow: hidden; }
-          .contentHolder .content { background-image: url('./azusa.jpg'); width: 12800px; height: 7200px; }
-          .spacer { text-align:center }
-        </style>
-    <script>
-      jQuery(document).ready(function ($) {
-        "use strict";
-        $('#Default').perfectScrollbar();
-        $('#LongThumb').perfectScrollbar({minScrollbarLength:100});
-      });
-    </script>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 640px; height: 360px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 12800px; height: 7200px; }
+      .spacer { text-align:center }
+    </style>
   </head>
   <body>
     <h1 style="text-align:center">No minimum</h1>
@@ -30,5 +22,12 @@
       <div class="content">
       </div>
     </div>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+        Ps.initialize($('#LongThumb'), {minScrollbarLength: 100});
+      };
+    </script>
   </body>
 </html>

examples/options-suppressScrollAxis.html

@@ -1,25 +1,16 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-        .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 }
-        h2 { text-align: center; }
-      </style>
-    <script>
-      jQuery(document).ready(function ($) {
-        "use strict";
-        $('#Default').perfectScrollbar();
-        $('#SuppressScrollX').perfectScrollbar({suppressScrollX: true});
-        $('#SuppressScrollY').perfectScrollbar({suppressScrollY: true});
-      });
-    </script>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+      .spacer { text-align:center }
+      h2 { text-align: center; }
+    </style>
   </head>
   <body>
     <h2>Default</h2>
@@ -37,6 +28,13 @@
       <div class="content">
       </div>
     </div>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+        Ps.initialize($('#SuppressScrollX'), {suppressScrollX: true});
+        Ps.initialize($('#SuppressScrollY'), {suppressScrollY: true});
+      };
+    </script>
   </body>
 </html>
-

examples/options-useBothWheelAxes.html

@@ -1,25 +1,16 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-          .contentHolder { position:relative; margin:0px auto; padding:0px; width: 640px; height: 360px; overflow: hidden; }
-          .contentHolder .content-x { background-image: url('./azusa.jpg'); width: 1920px; height: 360px; }
-          .contentHolder .content-y { background-image: url('./azusa.jpg'); width: 640px; height: 1080px; }
-          .spacer { text-align:center; }
-        </style>
-    <script>
-      jQuery(document).ready(function ($) {
-        "use strict";
-        $('#Default').perfectScrollbar();
-        $('#CanScrollWithYAxis').perfectScrollbar({useBothWheelAxes: true});
-        $('#CanScrollWithXAxis').perfectScrollbar({useBothWheelAxes: true});
-      });
-    </script>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 640px; height: 360px; overflow: auto; }
+      .contentHolder .content-x { background-image: url('./azusa.jpg'); width: 1920px; height: 360px; }
+      .contentHolder .content-y { background-image: url('./azusa.jpg'); width: 640px; height: 1080px; }
+      .spacer { text-align:center; }
+    </style>
   </head>
   <body>
     <h1 style="text-align:center">Default.</h1>
@@ -37,5 +28,13 @@
       <div class="content-y">
       </div>
     </div>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+        Ps.initialize($('#CanScrollWithYAxis'), {useBothWheelAxes: true});
+        Ps.initialize($('#CanScrollWithXAxis'), {useBothWheelAxes: true});
+      };
+    </script>
   </body>
 </html>

examples/options-wheelPropagation.html

@@ -1,23 +1,15 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-        .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>
-    <script>
-      jQuery(document).ready(function ($) {
-        "use strict";
-        $('#Default').perfectScrollbar();
-        $('#NoWheelPropagation').perfectScrollbar({wheelPropagation:true});
-      });
-    </script>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+      .spacer { text-align:center }
+    </style>
   </head>
   <body>
     <h1 style="text-align:center">Default; wheelPropagation:false</h1>
@@ -26,7 +18,7 @@
       </div>
     </div>
     <h1 style="text-align:center">wheelPropagation:true</h1>
-    <div id="NoWheelPropagation" class="contentHolder">
+    <div id="WheelPropagation" class="contentHolder">
       <div class="content">
       </div>
     </div>
@@ -34,6 +26,13 @@
       Note<br>that<br>there<br>is<br>plenty<br>of<br>text<br>after<br>the<br>image<br>to<br>ensure<br>that<br>it<br>is<br>possible<br>to<br>down<br>
       after<br>the<br>bottom<br>of<br>the<br>image<br>has<br>been<br>reached<br>to<br>enable<br>the<br>wheel<br>propagation<br>to<br>be<br>tested<br>
     </div>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+        Ps.initialize($('#WheelPropagation'), {wheelPropagation: true});
+      };
+    </script>
   </body>
 </html>
 

examples/options-wheelSpeed.html

@@ -1,24 +1,15 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-        .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>
-    <script>
-      jQuery(document).ready(function ($) {
-        "use strict";
-        $('#Default').perfectScrollbar();
-        $('#FastWheelSpeed').perfectScrollbar({wheelSpeed:10});
-        $('#SlowWheelSpeed').perfectScrollbar({wheelSpeed:0.1});
-      });
-    </script>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+      .spacer { text-align:center }
+    </style>
   </head>
   <body>
     <h1 style="text-align:center">Default; wheelSpeed:1</h1>
@@ -36,6 +27,14 @@
       <div class="content">
       </div>
     </div>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+        Ps.initialize($('#FastWheelSpeed'), {wheelSpeed: 10});
+        Ps.initialize($('#SlowWheelSpeed'), {wheelSpeed: 0.1});
+      };
+    </script>
   </body>
 </html>
 

examples/reach-the-end-callback.html

@@ -1,41 +1,20 @@
-<!DOCTYPE HTML>
+<!DOCTYPE html>
 <html>
   <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>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
     <style>
       #description {
         border: 1px solid gray;
         height:150px;
         width: 400px;
-        overflow: hidden;
+        overflow: auto;
         position: relative;
       }
-      #status {
-        color: red;
-      }
+      #status { color: red; }
     </style>
-    <script type="text/javascript">
-      $(document).ready(function ($) {
-        var $container = $('#description');
-        var $status = $('#status');
-        $container.perfectScrollbar();
-        $container.scroll(function(e) {
-          if($container.scrollTop() === 0) {
-            $status.text('it reaches the top!');
-          }
-          else if ($container.scrollTop() === $container.prop('scrollHeight') - $container.height()) {
-            $status.text('it reaches the end!');
-          } else {
-            $status.text('');
-          }
-        });
-      });
-    </script>
   </head>
   <body>
     <div id="description" class="wrapper">
@@ -52,5 +31,23 @@
     </div>
     <div id="status">
     </div>
+    <script type="text/javascript">
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        var container = $('#description');
+        var stat = $('#status');
+        Ps.initialize(container);
+        container.addEventListener('scroll', function (e) {
+          if(container.scrollTop === 0) {
+            stat.innerHTML = 'it reaches the top!';
+          }
+          else if (container.scrollTop === container.scrollHeight - container.clientHeight) {
+            stat.innerHTML = 'it reaches the end!';
+          } else {
+            stat.innerHTML = '';
+          }
+        });
+      };
+    </script>
   </body>
 </html>

examples/removable-list-element.html

@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <title>perfect-scrollbar example</title>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      #test {
+        border: 1px solid gray;
+        max-height: 300px;
+        width: 400px;
+        overflow: auto;
+        position: relative;
+      }
+      #test .element {
+        margin: 1px;
+        background-color: #cec;
+        height: 44px;
+        line-height: 44px;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="test" class="wrapper">
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+      <div class='element'>Hello! Click <a href='#'>here</a> to remove this!</div>
+    </div>
+    <script type="text/javascript">
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        var test = $('#test');
+        Ps.initialize(test);
+        [].forEach.call(test.querySelectorAll('.element'), function (el) {
+          el.querySelector('a').addEventListener('click', function () {
+            el.parentNode.removeChild(el);
+            Ps.update(test);
+          });
+        });
+      };
+    </script>
+  </body>
+</html>

examples/rtl.html

@@ -1,29 +1,28 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-        .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 }
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+      .spacer { text-align:center }
 
-        html { direction: rtl; }
-      </style>
-    <script>
-      jQuery(document).ready(function ($) {
-        "use strict";
-        $('#Default').perfectScrollbar();
-      });
-    </script>
+      html { direction: rtl; }
+    </style>
   </head>
   <body>
     <div id="Default" class="contentHolder">
       <div class="content">
       </div>
     </div>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+      };
+    </script>
   </body>
 </html>

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

@@ -1,38 +1,37 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
+<html>
   <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <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>
-        .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 }
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      .contentHolder { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .contentHolder .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+      .spacer { text-align:center }
 
-        /* Change the alignment of scrollbars */
-        /* Recommended: You can just modify the CSS file directly. */
-        .ps-container .ps-scrollbar-x-rail {
-          top: 3px;
-          bottom: auto; /* If using `top`, there shouldn't be a `bottom`. */
-        }
-        .ps-container .ps-scrollbar-y-rail {
-          left: 3px;
-          right: auto; /* If using `left`, there shouldn't be a `right`. */
-        }
-      </style>
-    <script>
-      jQuery(document).ready(function ($) {
-        "use strict";
-        $('#Default').perfectScrollbar();
-      });
-    </script>
+      /* Change the alignment of scrollbars */
+      /* Recommended: You can just modify the CSS file directly. */
+      .ps-container .ps-scrollbar-x-rail {
+        top: 3px;
+        bottom: auto; /* If using `top`, there shouldn't be a `bottom`. */
+      }
+      .ps-container .ps-scrollbar-y-rail {
+        left: 3px;
+        right: auto; /* If using `left`, there shouldn't be a `right`. */
+      }
+    </style>
   </head>
   <body>
     <div id="Default" class="contentHolder">
       <div class="content">
       </div>
     </div>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#Default'));
+      };
+    </script>
   </body>
 </html>

examples/scrollbars-with-margin.html

@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <title>perfect-scrollbar example</title>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      h1 { text-align: center; }
+      .container { position:relative; margin:0px auto; padding:0px; width: 600px; height: 400px; overflow: auto; }
+      .container .content { background-image: url('./azusa.jpg'); width: 1280px; height: 720px; }
+
+      .large-margin .ps-scrollbar-x-rail {
+        margin: 0 25%;
+        opacity: 0.5;
+        background-color: #eee;
+      }
+      .large-margin .ps-scrollbar-y-rail {
+        margin: 100px 0;
+        opacity: 0.5;
+        background-color: #eee;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>Default</h1>
+    <div class="container">
+      <div class="content">
+      </div>
+    </div>
+
+    <h1>Margins</h1>
+    <div class="container large-margin">
+      <div class="content">
+      </div>
+    </div>
+    <script>
+      window.onload = function () {
+        [].forEach.call(document.querySelectorAll('.container'), function (el) {
+          Ps.initialize(el);
+        });
+      };
+    </script>
+  </body>
+</html>

examples/table-content.html

@@ -0,0 +1,83 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <title>perfect-scrollbar example</title>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
+    <style>
+      #table {
+        font-size: 20px;
+      }
+      #table thead, #table tbody, #table tr {
+        display: block;
+        width: 600px;
+        border-spacing: 0;
+        border-collapse: collapse;
+      }
+      #table tbody {
+        height: 100px;
+        overflow-y: auto;
+        overflow-x:hidden;
+        position: relative;
+      }
+      #table tbody td, #table thead th {
+        display: block;
+        border: 1px solid black;
+        width: 200px;
+        float: left;
+        box-sizing: border-box;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="table" class="wrapper">
+    <table id='table'>
+      <thead>
+        <tr>
+          <th>Name</th>
+          <th>Age</th>
+          <th>Occupation</th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr>
+          <td>Alex</td>
+          <td>20</td>
+          <td>Student</td>
+        </tr>
+        <tr>
+          <td>Paul</td>
+          <td>23</td>
+          <td>Engineer</td>
+        </tr>
+        <tr>
+          <td>Chris</td>
+          <td>19</td>
+          <td>Human being</td>
+        </tr>
+        <tr>
+          <td>Alex</td>
+          <td>20</td>
+          <td>Student</td>
+        </tr>
+        <tr>
+          <td>Paul</td>
+          <td>23</td>
+          <td>Engineer</td>
+        </tr>
+        <tr>
+          <td>Chris</td>
+          <td>19</td>
+          <td>Human being</td>
+        </tr>
+      </tbody>
+    </table>
+    <script type="text/javascript">
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#table tbody'));
+      };
+    </script>
+  </body>
+</html>

examples/text-content.html

@@ -1,41 +1,57 @@
-<!DOCTYPE HTML>
+<!DOCTYPE html>
 <html>
   <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>
+    <link href="../dist/css/perfect-scrollbar.css" rel="stylesheet">
+    <script src="../dist/js/perfect-scrollbar.js"></script>
     <style>
       #description {
         border: 1px solid gray;
         height:150px;
         width: 400px;
-        overflow: hidden;
-        position: absolute;
+        overflow: auto;
+        position: relative;
       }
     </style>
-    <script type="text/javascript">
-      $(document).ready(function ($) {
-        $('#description').perfectScrollbar();
-      });
-    </script>
   </head>
   <body>
     <div id="description" class="wrapper">
-      <div>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-        <p>The command takes options applicable</p>
-      </div>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
+      <p>The command takes options applicable</p>
     </div>
+    <button id='redraw'>Redraw</button>
+    <script>
+      var $ = document.querySelector.bind(document);
+      window.onload = function () {
+        Ps.initialize($('#description'));
+      };
+      $('#redraw').addEventListener('click', function () {
+        var oldHtml = $('#description').innerHTML;
+        $('#description').innerHTML = '';
+        setTimeout(function () {
+          $('#description').innerHTML = '' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>' +
+            '<p>The command takes options applicable</p>';
+          Ps.update($('#description'));
+        }, 500);
+      });
+    </script>
   </body>
 </html>

gulpfile.js

@@ -0,0 +1,139 @@
+'use strict';
+
+var gulp = require('gulp')
+  , browserify = require('browserify')
+  , bump = require('gulp-bump')
+  , connect = require('gulp-connect')
+  , eslint = require('gulp-eslint')
+  , insert = require('gulp-insert')
+  , rename = require('gulp-rename')
+  , rimraf = require('gulp-rimraf')
+  , sass = require('gulp-sass')
+  , transform = require('vinyl-transform')
+  , uglify = require('gulp-uglify')
+  , zip = require('gulp-zip');
+
+var version = '/* perfect-scrollbar v' + require('./package').version + ' */\n';
+
+gulp.task('lint', function () {
+  return gulp.src(['./src/**/*.js', './gulpfile.js'])
+    .pipe(eslint())
+    .pipe(eslint.format())
+    .pipe(eslint.failOnError());
+});
+
+gulp.task('clean:js', function () {
+  return gulp.src('./dist/js/*.js', {read: false})
+    .pipe(rimraf());
+});
+
+gulp.task('clean:js:min', function () {
+  return gulp.src('./dist/js/min/*.js', {read: false})
+    .pipe(rimraf());
+});
+
+function browserified() {
+  return transform(function (filename) {
+    var b = browserify(filename);
+    return b.bundle();
+  });
+}
+
+gulp.task('js', ['clean:js'], function () {
+  return gulp.src('./src/js/adaptor/*.js')
+    .pipe(browserified())
+    .pipe(insert.prepend(version))
+    .pipe(rename(function (path) {
+      if (path.basename === 'global') {
+        path.basename = 'perfect-scrollbar';
+      } else {
+        path.basename = 'perfect-scrollbar.' + path.basename;
+      }
+    }))
+    .pipe(gulp.dest('./dist/js'))
+    .pipe(connect.reload());
+});
+
+gulp.task('js:min', ['clean:js:min'], function () {
+  return gulp.src('./src/js/adaptor/*.js')
+    .pipe(browserified())
+    .pipe(uglify())
+    .pipe(insert.prepend(version))
+    .pipe(rename(function (path) {
+      if (path.basename === 'global') {
+        path.basename = 'perfect-scrollbar.min';
+      } else {
+        path.basename = 'perfect-scrollbar.' + path.basename + '.min';
+      }
+    }))
+    .pipe(gulp.dest('./dist/js/min'));
+});
+
+gulp.task('clean:css', function () {
+  return gulp.src('./dist/css/perfect-scrollbar.css', {read: false})
+    .pipe(rimraf());
+});
+
+gulp.task('clean:css:min', function () {
+  return gulp.src('./dist/css/perfect-scrollbar.min.css', {read: false})
+    .pipe(rimraf());
+});
+
+gulp.task('sass', ['clean:css'], function () {
+  return gulp.src('./src/css/main.scss')
+    .pipe(sass())
+    .pipe(insert.prepend(version))
+    .pipe(rename('perfect-scrollbar.css'))
+    .pipe(gulp.dest('./dist/css'))
+    .pipe(connect.reload());
+});
+
+gulp.task('sass:min', ['clean:css:min'], function () {
+  return gulp.src('./src/css/main.scss')
+    .pipe(sass({outputStyle: 'compressed'}))
+    .pipe(insert.prepend(version))
+    .pipe(rename('perfect-scrollbar.min.css'))
+    .pipe(gulp.dest('./dist/css'));
+});
+
+function bumpType() {
+  if (gulp.env.major) {
+    return 'major';
+  } else if (gulp.env.minor) {
+    return 'minor';
+  } else {
+    return 'patch';
+  }
+}
+
+gulp.task('bump', function () {
+  gulp.src('./*.json')
+    .pipe(bump({type: bumpType()}))
+    .pipe(gulp.dest('./'));
+});
+
+gulp.task('release', ['bump', 'build']);
+
+gulp.task('build', ['js', 'js:min', 'sass', 'sass:min']);
+
+gulp.task('connect', ['build'], function () {
+  connect.server({
+    root: __dirname,
+    livereload: true
+  });
+});
+
+gulp.task('watch', function () {
+  gulp.watch(['src/js/**/*'], ['js']);
+  gulp.watch(['src/css/**/*'], ['sass']);
+});
+
+gulp.task('serve', ['connect', 'watch']);
+
+gulp.task('compress', function () {
+  return gulp.src('./dist/**')
+    .pipe(zip('perfect-scrollbar.zip'))
+    .pipe(gulp.dest('./dist'));
+});
+
+gulp.task('default', ['lint', 'build']);

index.js

@@ -0,0 +1,6 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+module.exports = require('./src/js/main');

jquery.js

@@ -0,0 +1,6 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+module.exports = require('./src/js/adaptor/jquery');

min/perfect-scrollbar.min.css

@@ -1,5 +0,0 @@
-/*! perfect-scrollbar - v0.5.1
-* 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}

package.json

@@ -1,19 +1,47 @@
 {
   "name": "perfect-scrollbar",
-  "version": "0.5.1",
-  "main": "src/perfect-scrollbar.js",
+  "version": "0.6.3",
+  "description": "Minimalistic but perfect custom scrollbar plugin",
+  "author": "Hyunje Alex Jun <me@noraesae.net>",
+  "contributors": [
+    {
+      "name": "Hyunje Alex Jun",
+      "email": "me@noraesae.net"
+    }
+  ],
+  "main": "./index.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/noraesae/perfect-scrollbar"
+  },
+  "bugs": {
+    "url": "https://github.com/noraesae/perfect-scrollbar/issues"
+  },
+  "keywords": [
+    "jquery-plugin",
+    "frontend",
+    "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-contrib-csslint": "~0.1.2",
-    "grunt-contrib-clean": "~0.4.1"
+    "browserify": "^8.1.1",
+    "gulp": "^3.8.10",
+    "gulp-bump": "^0.1.11",
+    "gulp-connect": "^2.2.0",
+    "gulp-eslint": "^0.2.0",
+    "gulp-insert": "^0.4.0",
+    "gulp-rename": "^1.2.0",
+    "gulp-rimraf": "^0.1.1",
+    "gulp-sass": "^1.3.1",
+    "gulp-uglify": "^1.0.2",
+    "gulp-zip": "^2.0.2",
+    "vinyl-transform": "^1.0.0"
   },
   "scripts": {
-    "test": "grunt travis --verbose"
-  }
+    "test": "gulp"
+  },
+  "license": "MIT"
 }

perfect-scrollbar.jquery.json

@@ -1,37 +0,0 @@
-{
-  "name": "perfect-scrollbar",
-  "title": "perfect-scrollbar",
-  "description": "Tiny but perfect jquery scrollbar plugin.",
-  "version": "0.5.1",
-  "author": {
-    "name": "Hyeonje Alex Jun",
-    "email": "me@noraesae.net",
-    "url": "https://github.com/noraesae/"
-  },
-  "licenses": [
-    {
-      "type": "MIT",
-      "url": "https://github.com/noraesae/perfect-scrollbar#license"
-    }
-  ],
-  "dependencies": {
-    "jquery": ">=1.10"
-  },
-  "keywords": [
-    "ui",
-    "scroll",
-    "scrollbar"
-  ],
-  "homepage": "http://noraesae.github.com/perfect-scrollbar/",
-  "docs": "https://github.com/noraesae/perfect-scrollbar/",
-  "download": "http://noraesae.github.com/perfect-scrollbar/",
-  "demo": "http://noraesae.github.com/perfect-scrollbar/",
-  "bugs": "https://github.com/noraesae/perfect-scrollbar/issues/",
-  "maintainers": [
-    {
-      "name": "Hyeonje Alex Jun",
-      "email": "me@noraesae.net",
-      "url": "https://github.com/noraesae/"
-    }
-  ]
-}

src/css/main.scss

@@ -0,0 +1,123 @@
+// Colors
+$ps-rail-hover: #eee;
+$ps-bar-default: #aaa;
+$ps-bar-hover: #999;
+
+// Helper mixins
+@mixin border-radius($r) {
+  -webkit-border-radius: $r;
+     -moz-border-radius: $r;
+      -ms-border-radius: $r;
+          border-radius: $r;
+}
+
+@mixin transition($t...) {
+  -webkit-transition: $t;
+     -moz-transition: $t;
+       -o-transition: $t;
+          transition: $t;
+}
+
+// Scrollbar mixins
+@mixin scrollbar-rail-default {
+  display: none;
+  position: absolute; /* please don't change 'position' */
+  @include border-radius(4px);
+  opacity: 0;
+  @include transition(background-color .2s linear, opacity .2s linear);
+}
+
+@mixin scrollbar-rail-hover {
+  background-color: $ps-rail-hover;
+  opacity: 0.9;
+}
+
+@mixin scrollbar-default {
+  position: absolute; /* please don't change 'position' */
+  background-color: $ps-bar-default;
+  @include border-radius(4px);
+  @include transition(background-color .2s linear);
+}
+
+@mixin scrollbar-hover {
+  background-color: $ps-bar-hover;
+}
+
+@mixin in-scrolling {
+  &.ps-in-scrolling {
+    pointer-events: none;
+    &.ps-x>.ps-scrollbar-x-rail{
+      @include scrollbar-rail-hover;
+      >.ps-scrollbar-x {
+        @include scrollbar-hover;
+      }
+    }
+    &.ps-y>.ps-scrollbar-y-rail {
+      @include scrollbar-rail-hover;
+      >.ps-scrollbar-y {
+        @include scrollbar-hover;
+      }
+    }
+  }
+}
+
+.ps-container {
+  -ms-touch-action: none;
+  overflow: hidden !important;
+
+  &.ps-active-x > .ps-scrollbar-x-rail,
+  &.ps-active-y > .ps-scrollbar-y-rail {
+    display: block;
+  }
+
+  @include in-scrolling;
+
+  >.ps-scrollbar-x-rail {
+    @include scrollbar-rail-default;
+    bottom: 3px; /* there must be 'bottom' for ps-scrollbar-x-rail */
+    height: 8px;
+
+    >.ps-scrollbar-x {
+      @include scrollbar-default;
+      bottom: 0; /* there must be 'bottom' for ps-scrollbar-x */
+      height: 8px;
+    }
+  }
+
+  >.ps-scrollbar-y-rail {
+    @include scrollbar-rail-default;
+    right: 3px; /* there must be 'right' for ps-scrollbar-y-rail */
+    width: 8px;
+
+    >.ps-scrollbar-y {
+      @include scrollbar-default;
+      right: 0; /* there must be 'right' for ps-scrollbar-y */
+      width: 8px;
+    }
+  }
+
+  &:hover {
+    @include in-scrolling;
+
+    >.ps-scrollbar-x-rail,
+    >.ps-scrollbar-y-rail {
+      opacity: 0.6;
+    }
+
+    >.ps-scrollbar-x-rail:hover {
+      @include scrollbar-rail-hover;
+
+      >.ps-scrollbar-x {
+        @include scrollbar-hover;
+      }
+    }
+
+    >.ps-scrollbar-y-rail:hover {
+      @include scrollbar-rail-hover;
+
+      >.ps-scrollbar-y {
+        @include scrollbar-hover;
+      }
+    }
+  }
+}

src/js/adaptor/global.js

@@ -0,0 +1,17 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var ps = require('../main');
+
+if (typeof define === 'function' && define.amd) {
+  // AMD
+  define(ps);
+} else {
+  // Add to a global object.
+  window.PerfectScrollbar = ps;
+  if (typeof window.Ps === 'undefined') {
+    window.Ps = ps;
+  }
+}

src/js/adaptor/jquery.js

@@ -0,0 +1,46 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var ps = require('../main')
+  , psInstances = require('../plugin/instances');
+
+function mountJQuery(jQuery) {
+  jQuery.fn.perfectScrollbar = function (settingOrCommand) {
+    return this.each(function () {
+      if (typeof settingOrCommand === 'object' ||
+          typeof settingOrCommand === 'undefined') {
+        // If it's an object or none, initialize.
+        var settings = settingOrCommand;
+
+        if (!psInstances.get(this)) {
+          ps.initialize(this, settings);
+        }
+      } else {
+        // Unless, it may be a command.
+        var command = settingOrCommand;
+
+        if (command === 'update') {
+          ps.update(this);
+        } else if (command === 'destroy') {
+          ps.destroy(this);
+        }
+      }
+
+      return jQuery(this);
+    });
+  };
+}
+
+if (typeof define === 'function' && define.amd) {
+  // AMD. Register as an anonymous module.
+  define(['jquery'], mountJQuery);
+} else {
+  var jq = window.jQuery ? window.jQuery : window.$;
+  if (typeof jq !== 'undefined') {
+    mountJQuery(jq);
+  }
+}
+
+module.exports = mountJQuery;

src/js/lib/class.js

@@ -0,0 +1,45 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+function oldAdd(element, className) {
+  var classes = element.className.split(' ');
+  if (classes.indexOf(className) < 0) {
+    classes.push(className);
+  }
+  element.className = classes.join(' ');
+}
+
+function oldRemove(element, className) {
+  var classes = element.className.split(' ');
+  var idx = classes.indexOf(className);
+  if (idx >= 0) {
+    classes.splice(idx, 1);
+  }
+  element.className = classes.join(' ');
+}
+
+exports.add = function (element, className) {
+  if (element.classList) {
+    element.classList.add(className);
+  } else {
+    oldAdd(element, className);
+  }
+};
+
+exports.remove = function (element, className) {
+  if (element.classList) {
+    element.classList.remove(className);
+  } else {
+    oldRemove(element, className);
+  }
+};
+
+exports.list = function (element) {
+  if (element.classList) {
+    return element.classList;
+  } else {
+    return element.className.split(' ');
+  }
+};

src/js/lib/dom.js

@@ -0,0 +1,77 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+exports.e = function (tagName, className) {
+  var element = document.createElement(tagName);
+  element.className = className;
+  return element;
+};
+
+exports.appendTo = function (child, parent) {
+  parent.appendChild(child);
+  return child;
+};
+
+function cssGet(element, styleName) {
+  return window.getComputedStyle(element)[styleName];
+}
+
+function cssSet(element, styleName, styleValue) {
+  if (typeof styleValue === 'number') {
+    styleValue = styleValue.toString() + 'px';
+  }
+  element.style[styleName] = styleValue;
+  return element;
+}
+
+function cssMultiSet(element, obj) {
+  for (var key in obj) {
+    var val = obj[key];
+    if (typeof val === 'number') {
+      val = val.toString() + 'px';
+    }
+    element.style[key] = val;
+  }
+  return element;
+}
+
+exports.css = function (element, styleNameOrObject, styleValue) {
+  if (typeof styleNameOrObject === 'object') {
+    // multiple set with object
+    return cssMultiSet(element, styleNameOrObject);
+  } else {
+    if (typeof styleValue === 'undefined') {
+      return cssGet(element, styleNameOrObject);
+    } else {
+      return cssSet(element, styleNameOrObject, styleValue);
+    }
+  }
+};
+
+exports.matches = function (element, query) {
+  if (typeof element.matches !== 'undefined') {
+    return element.matches(query);
+  } else {
+    if (typeof element.matchesSelector !== 'undefined') {
+      return element.matchesSelector(query);
+    } else if (typeof element.webkitMatchesSelector !== 'undefined') {
+      return element.webkitMatchesSelector(query);
+    } else if (typeof element.mozMatchesSelector !== 'undefined') {
+      return element.mozMatchesSelector(query);
+    } else if (typeof element.msMatchesSelector !== 'undefined') {
+      return element.msMatchesSelector(query);
+    }
+  }
+};
+
+exports.remove = function (element) {
+  if (typeof element.remove !== 'undefined') {
+    element.remove();
+  } else {
+    if (element.parentNode) {
+      element.parentNode.removeChild(element);
+    }
+  }
+};

src/js/lib/event-manager.js

@@ -0,0 +1,74 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var EventElement = function (element) {
+  this.element = element;
+  this.events = {};
+};
+
+EventElement.prototype.bind = function (eventName, handler) {
+  if (typeof this.events[eventName] === 'undefined') {
+    this.events[eventName] = [];
+  }
+  this.events[eventName].push(handler);
+  this.element.addEventListener(eventName, handler, false);
+};
+
+EventElement.prototype.unbind = function (eventName, handler) {
+  var isHandlerProvided = (typeof handler !== 'undefined');
+  this.events[eventName] = this.events[eventName].filter(function (hdlr) {
+    if (isHandlerProvided && hdlr !== handler) {
+      return true;
+    }
+    this.element.removeEventListener(eventName, hdlr, false);
+    return false;
+  }, this);
+};
+
+EventElement.prototype.unbindAll = function () {
+  for (var name in this.events) {
+    this.unbind(name);
+  }
+};
+
+var EventManager = function () {
+  this.eventElements = [];
+};
+
+EventManager.prototype.eventElement = function (element) {
+  var ee = this.eventElements.filter(function (eventElement) {
+    return eventElement.element === element;
+  })[0];
+  if (typeof ee === 'undefined') {
+    ee = new EventElement(element);
+    this.eventElements.push(ee);
+  }
+  return ee;
+};
+
+EventManager.prototype.bind = function (element, eventName, handler) {
+  this.eventElement(element).bind(eventName, handler);
+};
+
+EventManager.prototype.unbind = function (element, eventName, handler) {
+  this.eventElement(element).unbind(eventName, handler);
+};
+
+EventManager.prototype.unbindAll = function () {
+  for (var i = 0; i < this.eventElements.length; i++) {
+    this.eventElements[i].unbindAll();
+  }
+};
+
+EventManager.prototype.once = function (element, eventName, handler) {
+  var ee = this.eventElement(element);
+  var onceHandler = function (e) {
+    ee.unbind(eventName, onceHandler);
+    handler(e);
+  };
+  ee.bind(eventName, onceHandler);
+};
+
+module.exports = EventManager;

src/js/lib/guid.js

@@ -0,0 +1,16 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+module.exports = (function () {
+  function s4() {
+    return Math.floor((1 + Math.random()) * 0x10000)
+               .toString(16)
+               .substring(1);
+  }
+  return function () {
+    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
+           s4() + '-' + s4() + s4() + s4();
+  };
+})();

src/js/lib/helper.js

@@ -0,0 +1,84 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var cls = require('./class')
+  , d = require('./dom');
+
+exports.toInt = function (x) {
+  return parseInt(x, 10) || 0;
+};
+
+exports.clone = function (obj) {
+  if (obj === null) {
+    return null;
+  } else if (typeof obj === 'object') {
+    var result = {};
+    for (var key in obj) {
+      result[key] = this.clone(obj[key]);
+    }
+    return result;
+  } else {
+    return obj;
+  }
+};
+
+exports.extend = function (original, source) {
+  var result = this.clone(original);
+  for (var key in source) {
+    result[key] = this.clone(source[key]);
+  }
+  return result;
+};
+
+exports.isEditable = function (el) {
+  return d.matches(el, "input,[contenteditable]") ||
+         d.matches(el, "select,[contenteditable]") ||
+         d.matches(el, "textarea,[contenteditable]") ||
+         d.matches(el, "button,[contenteditable]");
+};
+
+exports.removePsClasses = function (element) {
+  var clsList = cls.list(element);
+  for (var i = 0; i < clsList.length; i++) {
+    var className = clsList[i];
+    if (className.indexOf('ps-') === 0) {
+      cls.remove(element, className);
+    }
+  }
+};
+
+exports.outerWidth = function (element) {
+  return this.toInt(d.css(element, 'width')) +
+         this.toInt(d.css(element, 'paddingLeft')) +
+         this.toInt(d.css(element, 'paddingRight')) +
+         this.toInt(d.css(element, 'borderLeftWidth')) +
+         this.toInt(d.css(element, 'borderRightWidth'));
+};
+
+exports.startScrolling = function (element, axis) {
+  cls.add(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.add(element, 'ps-' + axis);
+  } else {
+    cls.add(element, 'ps-x');
+    cls.add(element, 'ps-y');
+  }
+};
+
+exports.stopScrolling = function (element, axis) {
+  cls.remove(element, 'ps-in-scrolling');
+  if (typeof axis !== 'undefined') {
+    cls.remove(element, 'ps-' + axis);
+  } else {
+    cls.remove(element, 'ps-x');
+    cls.remove(element, 'ps-y');
+  }
+};
+
+exports.env = {
+  isWebKit: 'WebkitAppearance' in document.documentElement.style,
+  supportsTouch: (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch),
+  supportsIePointer: window.navigator.msMaxTouchPoints !== null
+};

src/js/main.js

@@ -0,0 +1,14 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var destroy = require('./plugin/destroy')
+  , initialize = require('./plugin/initialize')
+  , update = require('./plugin/update');
+
+module.exports = {
+  initialize: initialize,
+  update: update,
+  destroy: destroy
+};

src/js/plugin/default-setting.js

@@ -0,0 +1,18 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+module.exports = {
+  wheelSpeed: 1,
+  wheelPropagation: false,
+  swipePropagation: true,
+  minScrollbarLength: null,
+  maxScrollbarLength: null,
+  useBothWheelAxes: false,
+  useKeyboard: true,
+  suppressScrollX: false,
+  suppressScrollY: false,
+  scrollXMarginOffset: 0,
+  scrollYMarginOffset: 0
+};

src/js/plugin/destroy.js

@@ -0,0 +1,21 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var d = require('../lib/dom')
+  , h = require('../lib/helper')
+  , instances = require('./instances');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  i.event.unbindAll();
+  d.remove(i.scrollbarX);
+  d.remove(i.scrollbarY);
+  d.remove(i.scrollbarXRail);
+  d.remove(i.scrollbarYRail);
+  h.removePsClasses(element);
+
+  instances.remove(element);
+};

src/js/plugin/handler/click-rail.js

@@ -0,0 +1,58 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var h = require('../../lib/helper')
+  , instances = require('../instances')
+  , updateGeometry = require('../update-geometry');
+
+function bindClickRailHandler(element, i) {
+  function pageOffset(el) {
+    return el.getBoundingClientRect();
+  }
+  var stopPropagation = window.Event.prototype.stopPropagation.bind;
+
+  i.event.bind(i.scrollbarY, 'click', stopPropagation);
+  i.event.bind(i.scrollbarYRail, 'click', function (e) {
+    var halfOfScrollbarLength = h.toInt(i.scrollbarYHeight / 2);
+    var positionTop = i.railYRatio * (e.pageY - window.scrollY - pageOffset(i.scrollbarYRail).top - halfOfScrollbarLength);
+    var maxPositionTop = i.railYRatio * (i.railYHeight - i.scrollbarYHeight);
+    var positionRatio = positionTop / maxPositionTop;
+
+    if (positionRatio < 0) {
+      positionRatio = 0;
+    } else if (positionRatio > 1) {
+      positionRatio = 1;
+    }
+
+    element.scrollTop = (i.contentHeight - i.containerHeight) * positionRatio;
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+
+  i.event.bind(i.scrollbarX, 'click', stopPropagation);
+  i.event.bind(i.scrollbarXRail, 'click', function (e) {
+    var halfOfScrollbarLength = h.toInt(i.scrollbarXWidth / 2);
+    var positionLeft = i.railXRatio * (e.pageX - window.scrollX - pageOffset(i.scrollbarXRail).left - halfOfScrollbarLength);
+    var maxPositionLeft = i.railXRatio * (i.railXWidth - i.scrollbarXWidth);
+    var positionRatio = positionLeft / maxPositionLeft;
+
+    if (positionRatio < 0) {
+      positionRatio = 0;
+    } else if (positionRatio > 1) {
+      positionRatio = 1;
+    }
+
+    element.scrollLeft = ((i.contentWidth - i.containerWidth) * positionRatio) - i.negativeScrollAdjustment;
+    updateGeometry(element);
+
+    e.stopPropagation();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindClickRailHandler(element, i);
+};

src/js/plugin/handler/drag-scrollbar.js

@@ -0,0 +1,105 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var d = require('../../lib/dom')
+  , h = require('../../lib/helper')
+  , instances = require('../instances')
+  , updateGeometry = require('../update-geometry');
+
+function bindMouseScrollXHandler(element, i) {
+  var currentLeft = null;
+  var currentPageX = null;
+
+  function updateScrollLeft(deltaX) {
+    var newLeft = currentLeft + (deltaX * i.railXRatio);
+    var maxLeft = i.scrollbarXRail.getBoundingClientRect().left + (i.railXRatio * (i.railXWidth - i.scrollbarXWidth));
+
+    if (newLeft < 0) {
+      i.scrollbarXLeft = 0;
+    } else if (newLeft > maxLeft) {
+      i.scrollbarXLeft = maxLeft;
+    } else {
+      i.scrollbarXLeft = newLeft;
+    }
+
+    var scrollLeft = h.toInt(i.scrollbarXLeft * (i.contentWidth - i.containerWidth) / (i.containerWidth - (i.railXRatio * i.scrollbarXWidth))) - i.negativeScrollAdjustment;
+    element.scrollLeft = scrollLeft;
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollLeft(e.pageX - currentPageX);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    h.stopScrolling(element, 'x');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarX, 'mousedown', function (e) {
+    currentPageX = e.pageX;
+    currentLeft = h.toInt(d.css(i.scrollbarX, 'left')) * i.railXRatio;
+    h.startScrolling(element, 'x');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+function bindMouseScrollYHandler(element, i) {
+  var currentTop = null;
+  var currentPageY = null;
+
+  function updateScrollTop(deltaY) {
+    var newTop = currentTop + (deltaY * i.railYRatio);
+    var maxTop = i.scrollbarYRail.getBoundingClientRect().top + (i.railYRatio * (i.railYHeight - i.scrollbarYHeight));
+
+    if (newTop < 0) {
+      i.scrollbarYTop = 0;
+    } else if (newTop > maxTop) {
+      i.scrollbarYTop = maxTop;
+    } else {
+      i.scrollbarYTop = newTop;
+    }
+
+    var scrollTop = h.toInt(i.scrollbarYTop * (i.contentHeight - i.containerHeight) / (i.containerHeight - (i.railYRatio * i.scrollbarYHeight)));
+    element.scrollTop = scrollTop;
+  }
+
+  var mouseMoveHandler = function (e) {
+    updateScrollTop(e.pageY - currentPageY);
+    updateGeometry(element);
+    e.stopPropagation();
+    e.preventDefault();
+  };
+
+  var mouseUpHandler = function () {
+    h.stopScrolling(element, 'y');
+    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+  };
+
+  i.event.bind(i.scrollbarY, 'mousedown', function (e) {
+    currentPageY = e.pageY;
+    currentTop = h.toInt(d.css(i.scrollbarY, 'top')) * i.railYRatio;
+    h.startScrolling(element, 'y');
+
+    i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);
+    i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);
+
+    e.stopPropagation();
+    e.preventDefault();
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseScrollXHandler(element, i);
+  bindMouseScrollYHandler(element, i);
+};

src/js/plugin/handler/keyboard.js

@@ -0,0 +1,118 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var h = require('../../lib/helper')
+  , instances = require('../instances')
+  , updateGeometry = require('../update-geometry');
+
+function bindKeyboardHandler(element, i) {
+  var hovered = false;
+  i.event.bind(element, 'mouseenter', function () {
+    hovered = true;
+  });
+  i.event.bind(element, 'mouseleave', function () {
+    hovered = false;
+  });
+
+  var shouldPrevent = false;
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  i.event.bind(i.ownerDocument, 'keydown', function (e) {
+    if (e.isDefaultPrevented && e.isDefaultPrevented()) {
+      return;
+    }
+
+    if (!hovered) {
+      return;
+    }
+
+    var activeElement = document.activeElement ? document.activeElement : i.ownerDocument.activeElement;
+    if (activeElement) {
+      // go deeper if element is a webcomponent
+      while (activeElement.shadowRoot) {
+        activeElement = activeElement.shadowRoot.activeElement;
+      }
+      if (h.isEditable(activeElement)) {
+        return;
+      }
+    }
+
+    var deltaX = 0;
+    var deltaY = 0;
+
+    switch (e.which) {
+    case 37: // left
+      deltaX = -30;
+      break;
+    case 38: // up
+      deltaY = 30;
+      break;
+    case 39: // right
+      deltaX = 30;
+      break;
+    case 40: // down
+      deltaY = -30;
+      break;
+    case 33: // page up
+      deltaY = 90;
+      break;
+    case 32: // space bar
+    case 34: // page down
+      deltaY = -90;
+      break;
+    case 35: // end
+      if (e.ctrlKey) {
+        deltaY = -i.contentHeight;
+      } else {
+        deltaY = -i.containerHeight;
+      }
+      break;
+    case 36: // home
+      if (e.ctrlKey) {
+        deltaY = element.scrollTop;
+      } else {
+        deltaY = i.containerHeight;
+      }
+      break;
+    default:
+      return;
+    }
+
+    element.scrollTop = element.scrollTop - deltaY;
+    element.scrollLeft = element.scrollLeft + deltaX;
+    updateGeometry(element);
+
+    shouldPrevent = shouldPreventDefault(deltaX, deltaY);
+    if (shouldPrevent) {
+      e.preventDefault();
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindKeyboardHandler(element, i);
+};

src/js/plugin/handler/mouse-wheel.js

@@ -0,0 +1,144 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var h = require('../../lib/helper')
+  , instances = require('../instances')
+  , updateGeometry = require('../update-geometry');
+
+function bindMouseWheelHandler(element, i) {
+  var shouldPrevent = false;
+
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    if (deltaX === 0) {
+      if (!i.scrollbarYActive) {
+        return false;
+      }
+      if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+
+    var scrollLeft = element.scrollLeft;
+    if (deltaY === 0) {
+      if (!i.scrollbarXActive) {
+        return false;
+      }
+      if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)) {
+        return !i.settings.wheelPropagation;
+      }
+    }
+    return true;
+  }
+
+  function getDeltaFromEvent(e) {
+    var deltaX = e.deltaX;
+    var deltaY = -1 * e.deltaY;
+
+    if (typeof deltaX === "undefined" || typeof deltaY === "undefined") {
+      // OS X Safari
+      deltaX = -1 * e.wheelDeltaX / 6;
+      deltaY = e.wheelDeltaY / 6;
+    }
+
+    if (e.deltaMode && e.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.wheelDelta;
+    }
+
+    return [deltaX, deltaY];
+  }
+
+  function shouldBeConsumedByTextarea(deltaX, deltaY) {
+    var hoveredTextarea = element.querySelector('textarea:hover');
+    if (hoveredTextarea) {
+      var maxScrollTop = hoveredTextarea.scrollHeight - hoveredTextarea.clientHeight;
+      if (maxScrollTop > 0) {
+        if (!(hoveredTextarea.scrollTop === 0 && deltaY > 0) &&
+            !(hoveredTextarea.scrollTop === maxScrollTop && deltaY < 0)) {
+          return true;
+        }
+      }
+      var maxScrollLeft = hoveredTextarea.scrollLeft - hoveredTextarea.clientWidth;
+      if (maxScrollLeft > 0) {
+        if (!(hoveredTextarea.scrollLeft === 0 && deltaX < 0) &&
+            !(hoveredTextarea.scrollLeft === maxScrollLeft && deltaX > 0)) {
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  function mousewheelHandler(e) {
+    // FIXME: this is a quick fix for the select problem in FF and IE.
+    // If there comes an effective way to deal with the problem,
+    // this lines should be removed.
+    if (!h.env.isWebKit && element.querySelector('select:focus')) {
+      return;
+    }
+
+    var delta = getDeltaFromEvent(e);
+
+    var deltaX = delta[0];
+    var deltaY = delta[1];
+
+    if (shouldBeConsumedByTextarea(deltaX, deltaY)) {
+      return;
+    }
+
+    shouldPrevent = false;
+    if (!i.settings.useBothWheelAxes) {
+      // deltaX will only be used for horizontal scrolling and deltaY will
+      // only be used for vertical scrolling - this is the default
+      element.scrollTop = element.scrollTop - (deltaY * i.settings.wheelSpeed);
+      element.scrollLeft = element.scrollLeft + (deltaX * i.settings.wheelSpeed);
+    } else if (i.scrollbarYActive && !i.scrollbarXActive) {
+      // only vertical scrollbar is active and useBothWheelAxes option is
+      // active, so let's scroll vertical bar using both mouse wheel axes
+      if (deltaY) {
+        element.scrollTop = element.scrollTop - (deltaY * i.settings.wheelSpeed);
+      } else {
+        element.scrollTop = element.scrollTop + (deltaX * i.settings.wheelSpeed);
+      }
+      shouldPrevent = true;
+    } else if (i.scrollbarXActive && !i.scrollbarYActive) {
+      // useBothWheelAxes and only horizontal bar is active, so use both
+      // wheel axes for horizontal bar
+      if (deltaX) {
+        element.scrollLeft = element.scrollLeft + (deltaX * i.settings.wheelSpeed);
+      } else {
+        element.scrollLeft = element.scrollLeft - (deltaY * i.settings.wheelSpeed);
+      }
+      shouldPrevent = true;
+    }
+
+    updateGeometry(element);
+
+    shouldPrevent = (shouldPrevent || shouldPreventDefault(deltaX, deltaY));
+    if (shouldPrevent) {
+      e.stopPropagation();
+      e.preventDefault();
+    }
+  }
+
+  if (typeof window.onwheel !== "undefined") {
+    i.event.bind(element, 'wheel', mousewheelHandler);
+  } else if (typeof window.onmousewheel !== "undefined") {
+    i.event.bind(element, 'mousewheel', mousewheelHandler);
+  }
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindMouseWheelHandler(element, i);
+};

src/js/plugin/handler/native-scroll.js

@@ -0,0 +1,18 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var instances = require('../instances')
+  , updateGeometry = require('../update-geometry');
+
+function bindNativeScrollHandler(element, i) {
+  i.event.bind(element, 'scroll', function () {
+    updateGeometry(element);
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindNativeScrollHandler(element, i);
+};

src/js/plugin/handler/selection.js

@@ -0,0 +1,111 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var h = require('../../lib/helper')
+  , instances = require('../instances')
+  , updateGeometry = require('../update-geometry');
+
+function bindSelectionHandler(element, i) {
+  function getRangeNode() {
+    var selection = window.getSelection ? window.getSelection() :
+                    document.getSelection ? document.getSelection() : '';
+    if (selection.toString().length === 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 () {
+        if (!instances.get(element)) {
+          clearInterval(scrollingLoop);
+          return;
+        }
+
+        element.scrollTop = element.scrollTop + scrollDiff.top;
+        element.scrollLeft = element.scrollLeft + scrollDiff.left;
+        updateGeometry(element);
+      }, 50); // every .1 sec
+    }
+  }
+  function stopScrolling() {
+    if (scrollingLoop) {
+      clearInterval(scrollingLoop);
+      scrollingLoop = null;
+    }
+    h.stopScrolling(element);
+  }
+
+  var isSelected = false;
+  i.event.bind(i.ownerDocument, 'selectionchange', function () {
+    if (element.contains(getRangeNode())) {
+      isSelected = true;
+    } else {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+  i.event.bind(window, 'mouseup', function () {
+    if (isSelected) {
+      isSelected = false;
+      stopScrolling();
+    }
+  });
+
+  i.event.bind(window, 'mousemove', function (e) {
+    if (isSelected) {
+      var mousePosition = {x: e.pageX, y: e.pageY};
+      var containerGeometry = {
+        left: element.offsetLeft,
+        right: element.offsetLeft + element.offsetWidth,
+        top: element.offsetTop,
+        bottom: element.offsetTop + element.offsetHeight
+      };
+
+      if (mousePosition.x < containerGeometry.left + 3) {
+        scrollDiff.left = -5;
+        h.startScrolling(element, 'x');
+      } else if (mousePosition.x > containerGeometry.right - 3) {
+        scrollDiff.left = 5;
+        h.startScrolling(element, 'x');
+      } else {
+        scrollDiff.left = 0;
+      }
+
+      if (mousePosition.y < containerGeometry.top + 3) {
+        if (containerGeometry.top + 3 - mousePosition.y < 5) {
+          scrollDiff.top = -5;
+        } else {
+          scrollDiff.top = -20;
+        }
+        h.startScrolling(element, 'y');
+      } else if (mousePosition.y > containerGeometry.bottom - 3) {
+        if (mousePosition.y - containerGeometry.bottom + 3 < 5) {
+          scrollDiff.top = 5;
+        } else {
+          scrollDiff.top = 20;
+        }
+        h.startScrolling(element, 'y');
+      } else {
+        scrollDiff.top = 0;
+      }
+
+      if (scrollDiff.top === 0 && scrollDiff.left === 0) {
+        stopScrolling();
+      } else {
+        startScrolling();
+      }
+    }
+  });
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+  bindSelectionHandler(element, i);
+};

src/js/plugin/handler/touch.js

@@ -0,0 +1,170 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var instances = require('../instances')
+  , updateGeometry = require('../update-geometry');
+
+function bindTouchHandler(element, i, supportsTouch, supportsIePointer) {
+  function shouldPreventDefault(deltaX, deltaY) {
+    var scrollTop = element.scrollTop;
+    var scrollLeft = element.scrollLeft;
+    var magnitudeX = Math.abs(deltaX);
+    var magnitudeY = Math.abs(deltaY);
+
+    if (magnitudeY > magnitudeX) {
+      // user is perhaps trying to swipe up/down the page
+
+      if (((deltaY < 0) && (scrollTop === i.contentHeight - i.containerHeight)) ||
+          ((deltaY > 0) && (scrollTop === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    } else if (magnitudeX > magnitudeY) {
+      // user is perhaps trying to swipe left/right across the page
+
+      if (((deltaX < 0) && (scrollLeft === i.contentWidth - i.containerWidth)) ||
+          ((deltaX > 0) && (scrollLeft === 0))) {
+        return !i.settings.swipePropagation;
+      }
+    }
+
+    return true;
+  }
+
+  function applyTouchMove(differenceX, differenceY) {
+    element.scrollTop = element.scrollTop - differenceY;
+    element.scrollLeft = element.scrollLeft - differenceX;
+
+    updateGeometry(element);
+  }
+
+  var startOffset = {};
+  var startTime = 0;
+  var speed = {};
+  var easingLoop = null;
+  var inGlobalTouch = false;
+  var inLocalTouch = false;
+
+  function globalTouchStart() {
+    inGlobalTouch = true;
+  }
+  function globalTouchEnd() {
+    inGlobalTouch = false;
+  }
+
+  function getTouch(e) {
+    if (e.targetTouches) {
+      return e.targetTouches[0];
+    } else {
+      // Maybe IE pointer
+      return e;
+    }
+  }
+  function shouldHandle(e) {
+    if (e.targetTouches && e.targetTouches.length === 1) {
+      return true;
+    }
+    if (e.pointerType && e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
+      return true;
+    }
+    return false;
+  }
+  function touchStart(e) {
+    if (shouldHandle(e)) {
+      inLocalTouch = true;
+
+      var touch = getTouch(e);
+
+      startOffset.pageX = touch.pageX;
+      startOffset.pageY = touch.pageY;
+
+      startTime = (new Date()).getTime();
+
+      if (easingLoop !== null) {
+        clearInterval(easingLoop);
+      }
+
+      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);
+      startOffset = currentOffset;
+
+      var currentTime = (new Date()).getTime();
+
+      var timeGap = currentTime - startTime;
+      if (timeGap > 0) {
+        speed.x = differenceX / timeGap;
+        speed.y = differenceY / timeGap;
+        startTime = currentTime;
+      }
+
+      if (shouldPreventDefault(differenceX, differenceY)) {
+        e.stopPropagation();
+        e.preventDefault();
+      }
+    }
+  }
+  function touchEnd() {
+    if (!inGlobalTouch && inLocalTouch) {
+      inLocalTouch = false;
+
+      clearInterval(easingLoop);
+      easingLoop = setInterval(function () {
+        if (!instances.get(element)) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
+          clearInterval(easingLoop);
+          return;
+        }
+
+        applyTouchMove(speed.x * 30, speed.y * 30);
+
+        speed.x *= 0.8;
+        speed.y *= 0.8;
+      }, 10);
+    }
+  }
+
+  if (supportsTouch) {
+    i.event.bind(window, 'touchstart', globalTouchStart);
+    i.event.bind(window, 'touchend', globalTouchEnd);
+    i.event.bind(element, 'touchstart', touchStart);
+    i.event.bind(element, 'touchmove', touchMove);
+    i.event.bind(element, 'touchend', touchEnd);
+  }
+
+  if (supportsIePointer) {
+    if (window.PointerEvent) {
+      i.event.bind(window, 'pointerdown', globalTouchStart);
+      i.event.bind(window, 'pointerup', globalTouchEnd);
+      i.event.bind(element, 'pointerdown', touchStart);
+      i.event.bind(element, 'pointermove', touchMove);
+      i.event.bind(element, 'pointerup', touchEnd);
+    } else if (window.MSPointerEvent) {
+      i.event.bind(window, 'MSPointerDown', globalTouchStart);
+      i.event.bind(window, 'MSPointerUp', globalTouchEnd);
+      i.event.bind(element, 'MSPointerDown', touchStart);
+      i.event.bind(element, 'MSPointerMove', touchMove);
+      i.event.bind(element, 'MSPointerUp', touchEnd);
+    }
+  }
+}
+
+module.exports = function (element, supportsTouch, supportsIePointer) {
+  var i = instances.get(element);
+  bindTouchHandler(element, i, supportsTouch, supportsIePointer);
+};

src/js/plugin/initialize.js

@@ -0,0 +1,44 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var cls = require('../lib/class')
+  , h = require('../lib/helper')
+  , instances = require('./instances')
+  , updateGeometry = require('./update-geometry');
+
+// Handlers
+var clickRailHandler = require('./handler/click-rail')
+  , dragScrollbarHandler = require('./handler/drag-scrollbar')
+  , keyboardHandler = require('./handler/keyboard')
+  , mouseWheelHandler = require('./handler/mouse-wheel')
+  , nativeScrollHandler = require('./handler/native-scroll')
+  , selectionHandler = require('./handler/selection')
+  , touchHandler = require('./handler/touch');
+
+module.exports = function (element, userSettings) {
+  userSettings = typeof userSettings === 'object' ? userSettings : {};
+
+  cls.add(element, 'ps-container');
+
+  // Create a plugin instance.
+  var i = instances.add(element);
+
+  i.settings = h.extend(i.settings, userSettings);
+
+  clickRailHandler(element);
+  dragScrollbarHandler(element);
+  mouseWheelHandler(element);
+  nativeScrollHandler(element);
+  selectionHandler(element);
+
+  if (h.env.supportsTouch || h.env.supportsIePointer) {
+    touchHandler(element, h.env.supportsTouch, h.env.supportsIePointer);
+  }
+  if (i.settings.useKeyboard) {
+    keyboardHandler(element);
+  }
+
+  updateGeometry(element);
+};

src/js/plugin/instances.js

@@ -0,0 +1,107 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var d = require('../lib/dom')
+  , defaultSettings = require('./default-setting')
+  , EventManager = require('../lib/event-manager')
+  , guid = require('../lib/guid')
+  , h = require('../lib/helper');
+
+var instances = {};
+
+function Instance(element) {
+  var i = this;
+
+  i.settings = h.clone(defaultSettings);
+  i.containerWidth = null;
+  i.containerHeight = null;
+  i.contentWidth = null;
+  i.contentHeight = null;
+
+  i.isRtl = d.css(element, 'direction') === "rtl";
+  i.isNegativeScroll = (function () {
+    var originalScrollLeft = element.scrollLeft;
+    var result = null;
+    element.scrollLeft = -1;
+    result = element.scrollLeft < 0;
+    element.scrollLeft = originalScrollLeft;
+    return result;
+  })();
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+  i.event = new EventManager();
+  i.ownerDocument = element.ownerDocument || document;
+
+  i.scrollbarXRail = d.appendTo(d.e('div', 'ps-scrollbar-x-rail'), element);
+  i.scrollbarX = d.appendTo(d.e('div', 'ps-scrollbar-x'), i.scrollbarXRail);
+  i.scrollbarXActive = null;
+  i.scrollbarXWidth = null;
+  i.scrollbarXLeft = null;
+  i.scrollbarXBottom = h.toInt(d.css(i.scrollbarXRail, 'bottom'));
+  i.isScrollbarXUsingBottom = i.scrollbarXBottom === i.scrollbarXBottom; // !isNaN
+  i.scrollbarXTop = i.isScrollbarXUsingBottom ? null : h.toInt(d.css(i.scrollbarXRail, 'top'));
+  i.railBorderXWidth = h.toInt(d.css(i.scrollbarXRail, 'borderLeftWidth')) + h.toInt(d.css(i.scrollbarXRail, 'borderRightWidth'));
+  // Set rail to display:block to calculate margins
+  d.css(i.scrollbarXRail, 'display', 'block');
+  i.railXMarginWidth = h.toInt(d.css(i.scrollbarXRail, 'marginLeft')) + h.toInt(d.css(i.scrollbarXRail, 'marginRight'));
+  d.css(i.scrollbarXRail, 'display', '');
+  i.railXWidth = null;
+  i.railXRatio = null;
+
+  i.scrollbarYRail = d.appendTo(d.e('div', 'ps-scrollbar-y-rail'), element);
+  i.scrollbarY = d.appendTo(d.e('div', 'ps-scrollbar-y'), i.scrollbarYRail);
+  i.scrollbarYActive = null;
+  i.scrollbarYHeight = null;
+  i.scrollbarYTop = null;
+  i.scrollbarYRight = h.toInt(d.css(i.scrollbarYRail, 'right'));
+  i.isScrollbarYUsingRight = i.scrollbarYRight === i.scrollbarYRight; // !isNaN
+  i.scrollbarYLeft = i.isScrollbarYUsingRight ? null : h.toInt(d.css(i.scrollbarYRail, 'left'));
+  i.scrollbarYOuterWidth = i.isRtl ? h.outerWidth(i.scrollbarY) : null;
+  i.railBorderYWidth = h.toInt(d.css(i.scrollbarYRail, 'borderTopWidth')) + h.toInt(d.css(i.scrollbarYRail, 'borderBottomWidth'));
+  d.css(i.scrollbarYRail, 'display', 'block');
+  i.railYMarginHeight = h.toInt(d.css(i.scrollbarYRail, 'marginTop')) + h.toInt(d.css(i.scrollbarYRail, 'marginBottom'));
+  d.css(i.scrollbarYRail, 'display', '');
+  i.railYHeight = null;
+  i.railYRatio = null;
+}
+
+function getId(element) {
+  if (typeof element.dataset === 'undefined') {
+    return element.getAttribute('data-ps-id');
+  } else {
+    return element.dataset.psId;
+  }
+}
+
+function setId(element, id) {
+  if (typeof element.dataset === 'undefined') {
+    element.setAttribute('data-ps-id', id);
+  } else {
+    element.dataset.psId = id;
+  }
+}
+
+function removeId(element) {
+  if (typeof element.dataset === 'undefined') {
+    element.removeAttribute('data-ps-id');
+  } else {
+    delete element.dataset.psId;
+  }
+}
+
+exports.add = function (element) {
+  var newId = guid();
+  setId(element, newId);
+  instances[newId] = new Instance(element);
+  return instances[newId];
+};
+
+exports.remove = function (element) {
+  delete instances[getId(element)];
+  removeId(element);
+};
+
+exports.get = function (element) {
+  return instances[getId(element)];
+};

src/js/plugin/update-geometry.js

@@ -0,0 +1,107 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var cls = require('../lib/class')
+  , d = require('../lib/dom')
+  , h = require('../lib/helper')
+  , instances = require('./instances');
+
+function getThumbSize(i, thumbSize) {
+  if (i.settings.minScrollbarLength) {
+    thumbSize = Math.max(thumbSize, i.settings.minScrollbarLength);
+  }
+  if (i.settings.maxScrollbarLength) {
+    thumbSize = Math.min(thumbSize, i.settings.maxScrollbarLength);
+  }
+  return thumbSize;
+}
+
+function updateCss(element, i) {
+  var xRailOffset = {width: i.railXWidth};
+  if (i.isRtl) {
+    xRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth - i.contentWidth;
+  } else {
+    xRailOffset.left = element.scrollLeft;
+  }
+  if (i.isScrollbarXUsingBottom) {
+    xRailOffset.bottom = i.scrollbarXBottom - element.scrollTop;
+  } else {
+    xRailOffset.top = i.scrollbarXTop + element.scrollTop;
+  }
+  d.css(i.scrollbarXRail, xRailOffset);
+
+  var yRailOffset = {top: element.scrollTop, height: i.railYHeight};
+  if (i.isScrollbarYUsingRight) {
+    if (i.isRtl) {
+      yRailOffset.right = i.contentWidth - (i.negativeScrollAdjustment + element.scrollLeft) - i.scrollbarYRight - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.right = i.scrollbarYRight - element.scrollLeft;
+    }
+  } else {
+    if (i.isRtl) {
+      yRailOffset.left = i.negativeScrollAdjustment + element.scrollLeft + i.containerWidth * 2 - i.contentWidth - i.scrollbarYLeft - i.scrollbarYOuterWidth;
+    } else {
+      yRailOffset.left = i.scrollbarYLeft + element.scrollLeft;
+    }
+  }
+  d.css(i.scrollbarYRail, yRailOffset);
+
+  d.css(i.scrollbarX, {left: i.scrollbarXLeft, width: i.scrollbarXWidth - i.railBorderXWidth});
+  d.css(i.scrollbarY, {top: i.scrollbarYTop, height: i.scrollbarYHeight - i.railBorderYWidth});
+}
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  i.containerWidth = element.clientWidth;
+  i.containerHeight = element.clientHeight;
+  i.contentWidth = element.scrollWidth;
+  i.contentHeight = element.scrollHeight;
+
+  if (!element.contains(i.scrollbarXRail)) {
+    d.appendTo(i.scrollbarXRail, element);
+  }
+  if (!element.contains(i.scrollbarYRail)) {
+    d.appendTo(i.scrollbarYRail, element);
+  }
+
+  if (!i.settings.suppressScrollX && i.containerWidth + i.settings.scrollXMarginOffset < i.contentWidth) {
+    i.scrollbarXActive = true;
+    i.railXWidth = i.containerWidth - i.railXMarginWidth;
+    i.railXRatio = i.containerWidth / i.railXWidth;
+    i.scrollbarXWidth = getThumbSize(i, h.toInt(i.railXWidth * i.containerWidth / i.contentWidth));
+    i.scrollbarXLeft = h.toInt((i.negativeScrollAdjustment + element.scrollLeft) * (i.railXWidth - i.scrollbarXWidth) / (i.contentWidth - i.containerWidth));
+  } else {
+    i.scrollbarXActive = false;
+    i.scrollbarXWidth = 0;
+    i.scrollbarXLeft = 0;
+    element.scrollLeft = 0;
+  }
+
+  if (!i.settings.suppressScrollY && i.containerHeight + i.settings.scrollYMarginOffset < i.contentHeight) {
+    i.scrollbarYActive = true;
+    i.railYHeight = i.containerHeight - i.railYMarginHeight;
+    i.railYRatio = i.containerHeight / i.railYHeight;
+    i.scrollbarYHeight = getThumbSize(i, h.toInt(i.railYHeight * i.containerHeight / i.contentHeight));
+    i.scrollbarYTop = h.toInt(element.scrollTop * (i.railYHeight - i.scrollbarYHeight) / (i.contentHeight - i.containerHeight));
+  } else {
+    i.scrollbarYActive = false;
+    i.scrollbarYHeight = 0;
+    i.scrollbarYTop = 0;
+    element.scrollTop = 0;
+  }
+
+  if (i.scrollbarXLeft >= i.railXWidth - i.scrollbarXWidth) {
+    i.scrollbarXLeft = i.railXWidth - i.scrollbarXWidth;
+  }
+  if (i.scrollbarYTop >= i.railYHeight - i.scrollbarYHeight) {
+    i.scrollbarYTop = i.railYHeight - i.scrollbarYHeight;
+  }
+
+  updateCss(element, i);
+
+  cls[i.scrollbarXActive ? 'add' : 'remove'](element, 'ps-active-x');
+  cls[i.scrollbarYActive ? 'add' : 'remove'](element, 'ps-active-y');
+};

src/js/plugin/update.js

@@ -0,0 +1,31 @@
+/* Copyright (c) 2015 Hyunje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+'use strict';
+
+var d = require('../lib/dom')
+  , h = require('../lib/helper')
+  , instances = require('./instances')
+  , updateGeometry = require('./update-geometry');
+
+module.exports = function (element) {
+  var i = instances.get(element);
+
+  // Recalcuate negative scrollLeft adjustment
+  i.negativeScrollAdjustment = i.isNegativeScroll ? element.scrollWidth - element.clientWidth : 0;
+
+  // Recalculate rail margins
+  d.css(i.scrollbarXRail, 'display', 'block');
+  d.css(i.scrollbarYRail, 'display', 'block');
+  i.railXMarginWidth = h.toInt(d.css(i.scrollbarXRail, 'marginLeft')) + h.toInt(d.css(i.scrollbarXRail, 'marginRight'));
+  i.railYMarginHeight = h.toInt(d.css(i.scrollbarYRail, 'marginTop')) + h.toInt(d.css(i.scrollbarYRail, 'marginBottom'));
+
+  // Hide scrollbars not to affect scrollWidth and scrollHeight
+  d.css(i.scrollbarXRail, 'display', 'none');
+  d.css(i.scrollbarYRail, 'display', 'none');
+
+  updateGeometry(element);
+
+  d.css(i.scrollbarXRail, 'display', '');
+  d.css(i.scrollbarYRail, 'display', '');
+};

src/perfect-scrollbar.css

@@ -1,125 +0,0 @@
-.ps-container .ps-scrollbar-x-rail {
-    position: absolute; /* please don't change 'position' */
-    bottom: 3px; /* there must be 'bottom' for ps-scrollbar-x-rail */
-    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: 0.6;
-    filter: alpha(opacity=60);
-}
-
-.ps-container .ps-scrollbar-x-rail:hover,
-.ps-container .ps-scrollbar-x-rail.hover {
-    background-color: #eee;
-    opacity: 0.9;
-    filter: alpha(opacity=90);
-}
-
-.ps-container .ps-scrollbar-x-rail.in-scrolling {
-    background-color: #eee;
-    opacity: 0.9;
-    filter: alpha(opacity=90);
-}
-
-.ps-container .ps-scrollbar-y-rail {
-    position: absolute; /* please don't change 'position' */
-    right: 3px; /* there must be 'right' for ps-scrollbar-y-rail */
-    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: 0.6;
-    filter: alpha(opacity=60);
-}
-
-.ps-container .ps-scrollbar-y-rail:hover,
-.ps-container .ps-scrollbar-y-rail.hover {
-    background-color: #eee;
-    opacity: 0.9;
-    filter: alpha(opacity=90);
-}
-
-.ps-container .ps-scrollbar-y-rail.in-scrolling {
-    background-color: #eee;
-    opacity: 0.9;
-    filter: alpha(opacity=90);
-}
-
-.ps-container .ps-scrollbar-x {
-    position: absolute; /* please don't change 'position' */
-    bottom: 0; /* there must be 'bottom' for ps-scrollbar-x */
-    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; /* 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 {
-    background-color: #999;
-}
-
-.ps-container .ps-scrollbar-y {
-    position: absolute; /* please don't change 'position' */
-    right: 0; /* there must be 'right' for ps-scrollbar-y */
-    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; /* 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 {
-    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

@@ -1,714 +0,0 @@
-/* Copyright (c) 2012, 2014 Hyeonje Alex Jun and other contributors
- * Licensed under the MIT License
- */
-(function (factory) {
-  'use strict';
-
-  if (typeof define === 'function' && define.amd) {
-    // AMD. Register as an anonymous module.
-    define(['jquery'], factory);
-  } else if (typeof exports === 'object') {
-    // Node/CommonJS
-    factory(require('jquery'));
-  } else {
-    // Browser globals
-    factory(jQuery);
-  }
-}(function ($) {
-  'use strict';
-
-  // The default settings for the plugin
-  var defaultSettings = {
-    wheelSpeed: 1,
-    wheelPropagation: false,
-    minScrollbarLength: null,
-    maxScrollbarLength: null,
-    useBothWheelAxes: false,
-    useKeyboard: true,
-    suppressScrollX: false,
-    suppressScrollY: false,
-    scrollXMarginOffset: 0,
-    scrollYMarginOffset: 0,
-    includePadding: false
-  };
-
-  var getEventClassName = (function () {
-    var incrementingId = 0;
-    return function () {
-      var id = incrementingId;
-      incrementingId += 1;
-      return '.perfect-scrollbar-' + id;
-    };
-  }());
-
-  $.fn.perfectScrollbar = function (suppliedSettings, option) {
-
-    return this.each(function () {
-      // Use the default settings
-      var settings = $.extend(true, {}, defaultSettings),
-          $this = $(this);
-
-      if (typeof suppliedSettings === "object") {
-        // But over-ride any supplied
-        $.extend(true, settings, suppliedSettings);
-      } else {
-        // If no settings were supplied, then the first param must be the option
-        option = suppliedSettings;
-      }
-
-      // Catch options
-
-      if (option === 'update') {
-        if ($this.data('perfect-scrollbar-update')) {
-          $this.data('perfect-scrollbar-update')();
-        }
-        return $this;
-      }
-      else if (option === 'destroy') {
-        if ($this.data('perfect-scrollbar-destroy')) {
-          $this.data('perfect-scrollbar-destroy')();
-        }
-        return $this;
-      }
-
-      if ($this.data('perfect-scrollbar')) {
-        // if there's already perfect-scrollbar
-        return $this.data('perfect-scrollbar');
-      }
-
-
-      // 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 = $this.css('direction') === "rtl",
-          eventClassName = getEventClassName(),
-          railBorderXWidth = parseInt($scrollbarXRail.css('borderLeftWidth'), 10) + parseInt($scrollbarXRail.css('borderRightWidth'), 10),
-          railBorderYWidth = parseInt($scrollbarXRail.css('borderTopWidth'), 10) + parseInt($scrollbarXRail.css('borderBottomWidth'), 10);
-
-      var updateContentScrollTop = function (currentTop, deltaY) {
-        var newTop = currentTop + deltaY,
-            maxTop = containerHeight - scrollbarYHeight;
-
-        if (newTop < 0) {
-          scrollbarYTop = 0;
-        }
-        else if (newTop > maxTop) {
-          scrollbarYTop = maxTop;
-        }
-        else {
-          scrollbarYTop = newTop;
-        }
-
-        var scrollTop = parseInt(scrollbarYTop * (contentHeight - containerHeight) / (containerHeight - scrollbarYHeight), 10);
-        $this.scrollTop(scrollTop);
-      };
-
-      var updateContentScrollLeft = function (currentLeft, deltaX) {
-        var newLeft = currentLeft + deltaX,
-            maxLeft = containerWidth - scrollbarXWidth;
-
-        if (newLeft < 0) {
-          scrollbarXLeft = 0;
-        }
-        else if (newLeft > maxLeft) {
-          scrollbarXLeft = maxLeft;
-        }
-        else {
-          scrollbarXLeft = newLeft;
-        }
-
-        var scrollLeft = parseInt(scrollbarXLeft * (contentWidth - containerWidth) / (containerWidth - scrollbarXWidth), 10);
-        $this.scrollLeft(scrollLeft);
-      };
-
-      var getSettingsAdjustedThumbSize = function (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"};
-        if (isRtl) {
-          scrollbarXStyles.left = $this.scrollLeft() + containerWidth - contentWidth;
-        } else {
-          scrollbarXStyles.left = $this.scrollLeft();
-        }
-        if (isScrollbarXUsingBottom) {
-          scrollbarXStyles.bottom = scrollbarXBottom - $this.scrollTop();
-        } else {
-          scrollbarXStyles.top = scrollbarXTop + $this.scrollTop();
-        }
-        $scrollbarXRail.css(scrollbarXStyles);
-
-        var scrollbarYStyles = {top: $this.scrollTop(), height: containerHeight, display: scrollbarYActive ? "inherit": "none"};
-
-        if (isScrollbarYUsingRight) {
-          if (isRtl) {
-            scrollbarYStyles.right = contentWidth - $this.scrollLeft() - scrollbarYRight - $scrollbarY.outerWidth();
-          } else {
-            scrollbarYStyles.right = scrollbarYRight - $this.scrollLeft();
-          }
-        } else {
-          if (isRtl) {
-            scrollbarYStyles.left = $this.scrollLeft() + containerWidth * 2 - contentWidth - scrollbarYLeft - $scrollbarY.outerWidth();
-          } else {
-            scrollbarYStyles.left = scrollbarYLeft + $this.scrollLeft();
-          }
-        }
-        $scrollbarYRail.css(scrollbarYStyles);
-
-        $scrollbarX.css({left: scrollbarXLeft, width: scrollbarXWidth - railBorderXWidth});
-        $scrollbarY.css({top: scrollbarYTop, height: scrollbarYHeight - railBorderYWidth});
-
-        if (scrollbarXActive) {
-          $this.addClass('ps-active-x');
-        } else {
-          $this.removeClass('ps-active-x');
-        }
-
-        if (scrollbarYActive) {
-          $this.addClass('ps-active-y');
-        } else {
-          $this.removeClass('ps-active-y');
-        }
-      };
-
-      var updateBarSizeAndPosition = function () {
-        // Hide scrollbars not to affect scrollWidth and scrollHeight
-        $scrollbarXRail.hide();
-        $scrollbarYRail.hide();
-
-        containerWidth = settings.includePadding ? $this.innerWidth() : $this.width();
-        containerHeight = settings.includePadding ? $this.innerHeight() : $this.height();
-        contentWidth = $this.prop('scrollWidth');
-        contentHeight = $this.prop('scrollHeight');
-
-        if (!settings.suppressScrollX && containerWidth + settings.scrollXMarginOffset < contentWidth) {
-          scrollbarXActive = true;
-          scrollbarXWidth = getSettingsAdjustedThumbSize(parseInt(containerWidth * containerWidth / contentWidth, 10));
-          scrollbarXLeft = parseInt($this.scrollLeft() * (containerWidth - scrollbarXWidth) / (contentWidth - containerWidth), 10);
-        }
-        else {
-          scrollbarXActive = false;
-          scrollbarXWidth = 0;
-          scrollbarXLeft = 0;
-          $this.scrollLeft(0);
-        }
-
-        if (!settings.suppressScrollY && containerHeight + settings.scrollYMarginOffset < contentHeight) {
-          scrollbarYActive = true;
-          scrollbarYHeight = getSettingsAdjustedThumbSize(parseInt(containerHeight * containerHeight / contentHeight, 10));
-          scrollbarYTop = parseInt($this.scrollTop() * (containerHeight - scrollbarYHeight) / (contentHeight - containerHeight), 10);
-        }
-        else {
-          scrollbarYActive = false;
-          scrollbarYHeight = 0;
-          scrollbarYTop = 0;
-          $this.scrollTop(0);
-        }
-
-        if (scrollbarYTop >= containerHeight - scrollbarYHeight) {
-          scrollbarYTop = containerHeight - scrollbarYHeight;
-        }
-        if (scrollbarXLeft >= containerWidth - scrollbarXWidth) {
-          scrollbarXLeft = containerWidth - scrollbarXWidth;
-        }
-
-        updateScrollbarCss();
-
-        // Show scrollbars again after updated
-        $scrollbarXRail.show();
-        $scrollbarYRail.show();
-      };
-
-      var bindMouseScrollXHandler = function () {
-        var currentLeft,
-            currentPageX;
-
-        $scrollbarX.bind('mousedown' + eventClassName, function (e) {
-          currentPageX = e.pageX;
-          currentLeft = $scrollbarX.position().left;
-          $scrollbarXRail.addClass('in-scrolling');
-          e.stopPropagation();
-          e.preventDefault();
-        });
-
-        $(document).bind('mousemove' + eventClassName, function (e) {
-          if ($scrollbarXRail.hasClass('in-scrolling')) {
-            updateContentScrollLeft(currentLeft, e.pageX - currentPageX);
-            updateBarSizeAndPosition();
-            e.stopPropagation();
-            e.preventDefault();
-          }
-        });
-
-        $(document).bind('mouseup' + eventClassName, function (e) {
-          if ($scrollbarXRail.hasClass('in-scrolling')) {
-            $scrollbarXRail.removeClass('in-scrolling');
-          }
-        });
-
-        currentLeft =
-        currentPageX = null;
-      };
-
-      var bindMouseScrollYHandler = function () {
-        var currentTop,
-            currentPageY;
-
-        $scrollbarY.bind('mousedown' + eventClassName, function (e) {
-          currentPageY = e.pageY;
-          currentTop = $scrollbarY.position().top;
-          $scrollbarYRail.addClass('in-scrolling');
-          e.stopPropagation();
-          e.preventDefault();
-        });
-
-        $(document).bind('mousemove' + eventClassName, function (e) {
-          if ($scrollbarYRail.hasClass('in-scrolling')) {
-            updateContentScrollTop(currentTop, e.pageY - currentPageY);
-            updateBarSizeAndPosition();
-            e.stopPropagation();
-            e.preventDefault();
-          }
-        });
-
-        $(document).bind('mouseup' + eventClassName, function (e) {
-          if ($scrollbarYRail.hasClass('in-scrolling')) {
-            $scrollbarYRail.removeClass('in-scrolling');
-          }
-        });
-
-        currentTop =
-        currentPageY = null;
-      };
-
-      // check if the default scrolling should be prevented.
-      var shouldPreventDefault = function (deltaX, deltaY) {
-        var scrollTop = $this.scrollTop();
-        if (deltaX === 0) {
-          if (!scrollbarYActive) {
-            return false;
-          }
-          if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= contentHeight - containerHeight && deltaY < 0)) {
-            return !settings.wheelPropagation;
-          }
-        }
-
-        var scrollLeft = $this.scrollLeft();
-        if (deltaY === 0) {
-          if (!scrollbarXActive) {
-            return false;
-          }
-          if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= contentWidth - containerWidth && deltaX > 0)) {
-            return !settings.wheelPropagation;
-          }
-        }
-        return true;
-      };
-
-      // bind handlers
-      var bindMouseWheelHandler = function () {
-        var shouldPrevent = false;
-
-        var getDeltaFromEvent = function (e) {
-          var deltaX = e.originalEvent.deltaX,
-              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];
-        };
-
-        var mousewheelHandler = function (e) {
-          var delta = getDeltaFromEvent(e);
-
-          var deltaX = delta[0],
-              deltaY = delta[1];
-
-          shouldPrevent = false;
-          if (!settings.useBothWheelAxes) {
-            // deltaX will only be used for horizontal scrolling and deltaY will
-            // only be used for vertical scrolling - this is the default
-            $this.scrollTop($this.scrollTop() - (deltaY * settings.wheelSpeed));
-            $this.scrollLeft($this.scrollLeft() + (deltaX * settings.wheelSpeed));
-          } else if (scrollbarYActive && !scrollbarXActive) {
-            // only vertical scrollbar is active and useBothWheelAxes option is
-            // active, so let's scroll vertical bar using both mouse wheel axes
-            if (deltaY) {
-              $this.scrollTop($this.scrollTop() - (deltaY * settings.wheelSpeed));
-            } else {
-              $this.scrollTop($this.scrollTop() + (deltaX * settings.wheelSpeed));
-            }
-            shouldPrevent = true;
-          } else if (scrollbarXActive && !scrollbarYActive) {
-            // useBothWheelAxes and only horizontal bar is active, so use both
-            // wheel axes for horizontal bar
-            if (deltaX) {
-              $this.scrollLeft($this.scrollLeft() + (deltaX * settings.wheelSpeed));
-            } else {
-              $this.scrollLeft($this.scrollLeft() - (deltaY * settings.wheelSpeed));
-            }
-            shouldPrevent = true;
-          }
-
-          // update bar position
-          updateBarSizeAndPosition();
-
-          shouldPrevent = (shouldPrevent || shouldPreventDefault(deltaX, deltaY));
-          if (shouldPrevent) {
-            e.stopPropagation();
-            e.preventDefault();
-          }
-        };
-
-        if (typeof window.onwheel !== "undefined") {
-          $this.bind('wheel' + eventClassName, mousewheelHandler);
-        } else if (typeof window.onmousewheel !== "undefined") {
-          $this.bind('mousewheel' + eventClassName, mousewheelHandler);
-        }
-      };
-
-      var bindKeyboardHandler = function () {
-        var hovered = false;
-        $this.bind('mouseenter' + eventClassName, function (e) {
-          hovered = true;
-        });
-        $this.bind('mouseleave' + eventClassName, function (e) {
-          hovered = false;
-        });
-
-        var shouldPrevent = false;
-        $(document).bind('keydown' + eventClassName, function (e) {
-          if (e.isDefaultPrevented && e.isDefaultPrevented()) {
-            return;
-          }
-
-          if (!hovered || $(document.activeElement).is(":input,[contenteditable]")) {
-            return;
-          }
-
-          var deltaX = 0,
-              deltaY = 0;
-
-          switch (e.which) {
-          case 37: // left
-            deltaX = -30;
-            break;
-          case 38: // up
-            deltaY = 30;
-            break;
-          case 39: // right
-            deltaX = 30;
-            break;
-          case 40: // down
-            deltaY = -30;
-            break;
-          case 33: // page up
-            deltaY = 90;
-            break;
-          case 32: // space bar
-          case 34: // page down
-            deltaY = -90;
-            break;
-          case 35: // end
-            deltaY = -containerHeight;
-            break;
-          case 36: // home
-            deltaY = containerHeight;
-            break;
-          default:
-            return;
-          }
-
-          $this.scrollTop($this.scrollTop() - deltaY);
-          $this.scrollLeft($this.scrollLeft() + deltaX);
-
-          shouldPrevent = shouldPreventDefault(deltaX, deltaY);
-          if (shouldPrevent) {
-            e.preventDefault();
-          }
-        });
-      };
-
-      var bindRailClickHandler = function () {
-        var stopPropagation = function (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;
-
-          if (positionRatio < 0) {
-            positionRatio = 0;
-          } else if (positionRatio > 1) {
-            positionRatio = 1;
-          }
-
-          $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;
-
-          if (positionRatio < 0) {
-            positionRatio = 0;
-          } else if (positionRatio > 1) {
-            positionRatio = 1;
-          }
-
-          $this.scrollLeft((contentWidth - containerWidth) * positionRatio);
-        });
-      };
-
-      // bind mobile touch handler
-      var bindMobileTouchHandler = function () {
-        var applyTouchMove = function (differenceX, differenceY) {
-          $this.scrollTop($this.scrollTop() - differenceY);
-          $this.scrollLeft($this.scrollLeft() - differenceX);
-
-          // update bar position
-          updateBarSizeAndPosition();
-        };
-
-        var startCoords = {},
-            startTime = 0,
-            speed = {},
-            breakingProcess = null,
-            inGlobalTouch = false;
-
-        $(window).bind("touchstart" + eventClassName, function (e) {
-          inGlobalTouch = true;
-        });
-        $(window).bind("touchend" + eventClassName, function (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);
-          }
-
-          e.stopPropagation();
-        });
-        $this.bind("touchmove" + eventClassName, function (e) {
-          if (!inGlobalTouch && e.originalEvent.targetTouches.length === 1) {
-            var touch = e.originalEvent.targetTouches[0];
-
-            var currentCoords = {};
-            currentCoords.pageX = touch.pageX;
-            currentCoords.pageY = touch.pageY;
-
-            var differenceX = currentCoords.pageX - startCoords.pageX,
-              differenceY = currentCoords.pageY - startCoords.pageY;
-
-            applyTouchMove(differenceX, differenceY);
-            startCoords = currentCoords;
-
-            var currentTime = (new Date()).getTime();
-
-            var timeGap = currentTime - startTime;
-            if (timeGap > 0) {
-              speed.x = differenceX / timeGap;
-              speed.y = differenceY / timeGap;
-              startTime = currentTime;
-            }
-
-            e.preventDefault();
-          }
-        });
-        $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);
-        $this.data('perfect-scrollbar', null);
-        $this.data('perfect-scrollbar-update', null);
-        $this.data('perfect-scrollbar-destroy', null);
-        $scrollbarX.remove();
-        $scrollbarY.remove();
-        $scrollbarXRail.remove();
-        $scrollbarYRail.remove();
-
-        // clean all variables
-        $scrollbarXRail =
-        $scrollbarYRail =
-        $scrollbarX =
-        $scrollbarY =
-        scrollbarXActive =
-        scrollbarYActive =
-        containerWidth =
-        containerHeight =
-        contentWidth =
-        contentHeight =
-        scrollbarXWidth =
-        scrollbarXLeft =
-        scrollbarXBottom =
-        isScrollbarXUsingBottom =
-        scrollbarXTop =
-        scrollbarYHeight =
-        scrollbarYTop =
-        scrollbarYRight =
-        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();
-        }
-      };
-
-      var supportsTouch = (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch);
-
-      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();
-        bindScrollHandler();
-        bindMouseScrollXHandler();
-        bindMouseScrollYHandler();
-        bindRailClickHandler();
-        bindMouseWheelHandler();
-
-        if (supportsTouch) {
-          bindMobileTouchHandler();
-        }
-        if (settings.useKeyboard) {
-          bindKeyboardHandler();
-        }
-        $this.data('perfect-scrollbar', $this);
-        $this.data('perfect-scrollbar-update', updateBarSizeAndPosition);
-        $this.data('perfect-scrollbar-destroy', destroy);
-      };
-
-      // initialize
-      initialize();
-
-      return $this;
-    });
-  };
-}));