use-flipper

useFlipper React hook for css-only dropdowns, toggles, or custom checkboxes

What

Most modern sites require js to be loaded, parsed and executed before use. Server-side rendering performs the first render without js, but it's still required for interactivity. useFlipper enables interactivity without js.

API

• Provider - Adds the necessary global context
• useFlipper - Returns Flipper, FlippedOn, FlippedOff
  • Flipper - Component defines a clickable area
  • FlippedOn - Component renders when the flipper is clicked on
  • FlippedOff - Component renders when the flipper is clicked off

Next.js example

Live preview here

1. Add the Provider to the root of the app.

   // pages/_app.js
   
   import React from 'react';
   import App from 'next/app';
   import {Provider} from 'use-flipper';
   
   class MyApp extends App {
     render() {
       const {Component, pageProps} = this.props;
       return (
         {/* count is 1 by default */}
         <Provider count={3}>
           <Component {...pageProps} />
         </Provider>
       );
     }
   }
   
   export default MyApp;

2. Add useFlipper where you want interactivity.

   import {useFlipper} from 'use-flipper';
   
   const Home = () => {
     const {Flipper, FlippedOn, FlippedOff} = useFlipper();
     return (
       <div>
         <Flipper>Flip</Flipper>
         <FlippedOn>On</FlippedOn>
         <FlippedOff>Off</FlippedOff>
       </div>
     )
   }
   
   export default Home;

Compatibility

IE11+

Limitations

1. Flipper components cannot contain input or button tags
2. For more than one Flipper to work without js, you must provide count to Provider
3. Accessibility is untested

How it works

The state of checkboxes can be queried in css. When a label for a checkbox is clicked, it toggles the checkbox. Hide the checkbox, then style the label, and you have a css-only button that can toggle the display of other dom elements.

License

MIT