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Alton: jQuery Scroll Jacking Plugin

Alton is a jQuery-powered scrolling plugin that utilizes 100% height & width, custom vertical scrolling effects in order to present and navigate through web content in a unique manner. It utilizes the whole scrolljacking idea, but greatly improves upon the often-poorly-implemented scrolljacking experiences you might be used to.

What makes Alton unique?

Good question. Here’s why Alton rules:

  • The Standard functionality. Standard brings you the full page scrolling you’re used to by making the “featured area of projects” in the middle section 100% height, and each scroll directs you to the next one (scroll down) or previous (scroll up).
  • The Bookend functionality. This allows you to create a bookend experience which allows you to seamlessly introduce your full height section, and summarize or even conclude it.
  • The Hero Scroll functionality. This allows you to scrolljack only the “Hero Section”, wherein the page will scrolljack to the top of the section that immediately follows the Hero Section, then re-enable native scrolling for the rest of the page.
  • The plugin uses 100% height containers for full-screen presentation; it’s great for impactful presentation.
  • You have options for a couple of different layouts right out of the box.
  • It’s lightweight, easy to implement, and not CPU intensive.

View Demos or View on Github

What is “Scrolljacking”?

Scrolljacking basically means we replace native scrolling (what you’re used to) with targeted scrolling: when the user initiates a scroll, either with their mouse or keyboard, scrolljacking takes them to an exact vertical point on the screen (for example, the top of the next content container). When done properly, scrolljacking can be a part of a unique, enjoyable online experience.

Compatibility

This plugin has been tested on IE9+ and with jQuery 1.7+. Anything less and you’re on your own – sorry!

Demos

In case you missed the links above, here are a few demos showing the different ways Alton can be used.

Quick start

Standard Functionality

Standard functionality brings you the full page scrolling you’re used to. The “featured area of projects” in the middle section are all 100% height, and each scroll directs you to the next one (scroll down) or previous (scroll up). Here’s a demo of Standard.

Here is an example for all the options needed for Standard:

First ensure you have the proper HTML structure:


<body class="pageWrapper">
    <section class="full"&gt
        <div class="slide"></div>
        <div class="slide"></div>
        <div class="slide"></div>
    </section>
</body>

Next add the following JavaScript where you want to call it. Note: If you don’t want errors to occur, only run the script on the page where scrolling occurs


$(document).alton({
    fullSlideContainer: 'full', // Tell Alton the full height container
    singleSlideClass: 'slide', // Tell Alton the full height slide class
    useSlideNumbers: true, // Set to false if you don't want to use pagination
    slideNumbersBorderColor: '#fff', // Set the outside color of the pagination items
    slideNumbersColor: 'transparent', // Set the inner color of the pagination items
    bodyContainer: 'pageWrapper', // Tell Alton the body class
});

Bookend Functionality

The Idea behind Bookend functionality is that you have a header and footer sections (“bookends”), with a featured area of projects or something in the middle. The “featured area of projects” in the middle section are all 100% height, whereas the bookends can be whatever height you’d like them to be. Here’s a demo of Bookend.

Here is an example for all the options available for Bookend:
First ensure you have the proper HTML structure:


<body class="pageWrapper">
    <!-- Set the height for bookends. We left this in your hands so choose wisely -->
    <header class="header" style="height:500px;"></header>
    <section class="full">
        <div class="slide"></div>
        <div class="slide"></div>
        <div class="slide"></div>
    </section>
    <footer class="footer" style="height:500px;"></footer>
</body>

Next add the following where you want to call it. Note: If you don’t want errors to occur, only run the script on the page where scrolling occurs:


$(document).alton({
    fullSlideContainer: 'full', // Tell Alton the full height container
    singleSlideClass: 'slide', // Tell Alton the full height slide class
    useSlideNumbers: true, // Set to false if you don't want to use pagination
    slideNumbersBorderColor: '#fff', // Set the outside color of the pagination items
    slideNumbersColor: 'transparent', // Set the inner color of the pagination items
    bodyContainer: 'pageWrapper', // Tell Alton the body class
});

Hero Scroll

The Idea behind Hero Scroll is that we only apply scrolljacking to the topmost “Hero” container; one scroll movement takes the user to the top of the next section of content and native scrolling is enabled. Here’s a demo of Hero Scroll.

Here is an example for all the options available for Hero Scroll:

First ensure you have the proper HTML structure:


<section class="header">
    <!-- Insert Header Content Here -->
</section>
<section class="pageWrapper">
    <!-- Insert Regular Content Here -->
</section>

Next add the following where you want to call it. Note: If you don’t want errors to occur, only run the script on the page where scrolling occurs:


$(document).alton({
    firstClass : 'header', // Set the first container class
    bodyContainer: 'pageWrapper', // Set the body container
    scrollMode: 'headerScroll', // Set the scroll mode
});

All Available Options

Here’s a list of all the options that come built in to Alton, along with their default values.


firstClass : 'header', // classname of the first element in your page content
fullSlideContainer : 'full', // full page elements container for 
singleSlideClass : 'slide', // class for each individual slide
nextElement : 'div', // set the first element in the first page series.
previousClass : null, // null when starting at the top. Will be updated based on current postion
lastClass: 'footer', // last block to scroll to
slideNumbersContainer: 'slide-numbers', // ID of Slide Numbers
bodyContainer: 'pageWrapper', // ID of content container
scrollMode: 'featuredScroll', // Choose scroll mode
useSlideNumbers: false, // Enable or disable slider
slideNumbersBorderColor: '#fff', // outside color for slide numbers
slideNumbersColor: '#000', // interior color when slide numbers inactive

Bugs and Feature Requests

Have a bug or a feature request? Please first read the issue guidelines and search for existing and closed issues. If your problem or idea is not addressed yet, please open a new issue.

Currently Working On

  • Custom Animations
  • More Customization for slide number indicators (pagination)

Keep track of our progress by following @paper_leaf on Twitter.

Copyright and License

Copyright 2014 Paper Leaf Design
License: GPL v3

Frequently Asked Questions

Does this work on touchscreens?

No.

Why not you big jerks?

Touch events are a different beast, and considering the amount of people on cheaper, less powerful devices, or even the majority still stuck in contracts, the usability is usually non-existent. That being said, we are continuing to explore ways of implementing this for mobile devices.

So you are looking at adding mobile functionality?

Possibly!

What currently happens on mobile devices, then, if Alton doesn’t work?

It falls back to regular scrolling on mobile. It’s the best of both worlds, like pizza made out of candy.

Scrolling appears unresponsive at times. What’s going on?

After every scroll there’s a delay in effect to help get rid of Inertia Scroll on Macs. If you try to scroll within this delay it will prevent you from scrolling, until the barrage of mousewheel events has ended.

Why did you name this plugin Alton?

We’re playing off the idea of height, in that this plugin uses 100% height containers. That led us to the discovery of Robert Wadlow, the world’s tallest man – also known as the Alton Giant. *mic drop*

Are you guys for hire?

We sure are! We’re an award-winning digital agency that specializes in custom design & development. Drop us a line!

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