Like jQuery's slideUp / slideDown, but for Vue!

Demo: https://codepen.io/danieldiekmeier/pen/YapGWq

npm i vue-slide-up-down

Usage with Webpack or other module bundlers:

import VueSlideUpDown from 'vue-slide-up-down'
// or
const VueSlideUpDown = require('vue-slide-up-down')

Vue.component('vue-slide-up-down', VueSlideUpDown)

Or use the UMD build directly in your browser:

<script type="text/javascript" src="node_modules/vuejs/dist/vue.min.js"></script>
<script type="text/javascript" src="node_modules/vue-slide-up-down/dist/vue-slide-up-down.umd.js"></script>
<script type="text/javascript">
  Vue.component('vue-slide-up-down', VueSlideUpDown);
</script>

The component takes four props:

• active (Boolean): Whether to show the component (true) or not (false)
• duration (Number): How long the animation is supposed to be, in milliseconds. Defaults to 300.
• easing (String): The easing technique. Default is cubic-bezier(0.23, 1, 0.32, 1) which is (Ease Out Quint).
• tag (String): Which HTML tag to use for the wrapper element. Defaults to div.

<div class="MyContent">
  <h1>Always show this</h1>
  <vue-slide-up-down :active="active" :duration="1000">
    Only show this if "active” is true
  </vue-slide-up-down>
</div>

If you want to use a different timing function, add some CSS for your <vue-slide-up-down> element. (See demo/index.html for a full example.)

<style>
  .wobbly-accordeon {
    transition-timing-function: cubic-bezier(0.195, 1.650, 0.435, -0.600);
  }
</style>

<vue-slide-up-down class="wobbly-accordeon">
  Lorem ipsum dolor sit amet, consectetur adipisicing elit. Soluta omnis velit ab culpa, officia, unde nesciunt temporibus cum reiciendis distinctio.
</vue-slide-up-down>

This currently works by measuring the offsetHeight and then CSS-transitioning to the target height or back to 0px. This works okay, but is not very performant. If you have other ideas how to make this extremely smooth and good looking, feel free to send issues or pull requests.