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Programming language: JavaScript
Tags: Scroll    

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README

elevator.js

Finally, a "back to top" button that behaves like a real elevator, by adding elevator music to quietly soothe the awkwardness that can ensue when being smoothly scrolled to the top of the screen.

This is very serious stuff, here's a demo!

Instructions

Elevator.js is a stand alone library (no jquery, or the likes) so usage is pretty straight forward. All styling of elements is up to you. Elevator.js only handles the audio management, and the scroll functionality!

JS

Elevator.js lives entirely within the js realm, which makes things fairly simple to use.

You'll need to create a new instance of Elevator, and pass it some audio elements.

<script>
// Elevator script included on the page, already.

window.onload = function() {
  var elevator = new Elevator({
    mainAudio: '/src/to/audio.mp3',
    endAudio: '/src/to/end-audio.mp3'
  });
}

// You can run the elevator, by calling.
elevator.elevate();
</script>

You can also add an "element" option, clicking this element will invoke the "Scroll to top" functionality, we all love and crave.

<div class="elevator-button">Back to Top</div>

<script>
// Elevator script included on the page, already.

window.onload = function() {
  var elevator = new Elevator({
    element: document.querySelector('.elevator-button'),
    mainAudio: '/src/to/audio.mp3',
    endAudio: '/src/to/end-audio.mp3'
  });
}
</script>

If you don't want to scroll to the top, a custom target can be specified by adding a "targetElement" option:

<div class="elevator-button">Take the elevator to the target</div>

<script>
// Elevator script included on the page, already.

window.onload = function() {
  var elevator = new Elevator({
    element: document.querySelector('.elevator-button'),
    targetElement: document.querySelector('#elevator-target'),
    mainAudio: '/src/to/audio.mp3',
    endAudio: '/src/to/end-audio.mp3'
  });
}
</script>

If you want to scroll to a point on the page with some extra padding on the top, simply add the "verticalPadding" option:

<div class="elevator-button">Take the elevator to the target</div>

<script>
// Elevator script included on the page, already.

window.onload = function() {
  var elevator = new Elevator({
    element: document.querySelector('.elevator-button'),
    targetElement: document.querySelector('#elevator-target'),
    verticalPadding: 100,  // in pixels
    mainAudio: '/src/to/audio.mp3',
    endAudio: '/src/to/end-audio.mp3'
  });
}
</script>

If you're really serious (boring), you don't have to use audio... and can also set a fixed time to scroll to the top

<div class="elevator-button">Back to Top</div>

<script>
// Elevator script included on the page, already.

window.onload = function() {
  var elevator = new Elevator({
    element: document.querySelector('.elevator-button'),
    duration: 1000 // milliseconds
  });
}
</script>

If you use elevator.js in combination with other code, you might want to use callbacks

<script>
window.onload = function() {
   new Elevator({
       element: document.querySelector('.elevator-button'),
       mainAudio: '/src/to/audio.mp3',
       endAudio: '/src/to/end-audio.mp3',
       duration: 5000,
       startCallback: function() {
         // is called, when the elevator starts moving
       },
       endCallback: function() {
         // is called, when the elevator reached target level
       }
   });
}
</script>

NPM

The package is also available via NPM

License

Elevator.js is covered by the MIT License.

Audio in the Demo was bought via Pond5, you will need to license your own.

Copyright (C) ~ Tim Holman ~ [email protected]


*Note that all licence references and agreements mentioned in the elevator.js README section above are relevant to that project's source code only.