36 lines
1.3 KiB
Markdown
36 lines
1.3 KiB
Markdown
# WOW.js Integration
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Motion UI can be paired with [WOW.js](http://mynameismatthieu.com/WOW/) to trigger animations as elements scroll into view. **[Here's a CodePen that illustrates the concepts below](http://codepen.io/gakimball/pen/WrKRRy)**.
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To start, load the JavaScript for WOW.js. The quickest way to do this is by loading from a CDN:
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```html
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<script src="https://cdnjs.cloudflare.com/ajax/libs/wow/1.1.2/wow.min.js"></script>
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```
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Next, in your main JavaScript file, initialize WOW:
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```js
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var wow = new WOW();
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wow.init();
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```
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Lastly, we need animation classes to add to elements. Because Motion UI is a transition-focused library, there aren't many animation classes that come out of the box. The built-in animation classes are `.wiggle`, `.shake`, `.spin-cw`, and `.spin-ccw`. However, creating out own animation class using any of the transition effects is easy, using Motion UI's Sass mixins.
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Here's a basic fade class. Refer to the [documentation on animations](animations.md) to learn more about how animations are built.
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```scss
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.animate-fade-in {
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@include mui-animation(fade);
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}
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```
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Now we can apply this class to any element. We also add the class `.wow`, so WOW knows which elements to target as the page scrolls.
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```html
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<img class="wow animate-fade-in" src="//placekitten.com/300/300">
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```
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