An auto-expand plugin for jsincss
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README.md

jsincss-auto-expand

An auto-expand plugin for jsincss

About

This plugin is a JavaScript module that works with JS-in-CSS stylesheets, to expand elements to match their scroll dimensions.

Downloading

You can download jsincss-auto-expand and add it to your codebase manually, or download it with npm:

npm install jsincss-auto-expand

Another option that works for building or testing, that isn't ideal for production use, is linking to the module directly from a CDN like unpkg:

<script type=module>
  import expand from 'https://unpkg.com/jsincss-auto-expand/index.vanilla.js'
</script>

Importing

This plugin exists in three different formats:

You can import this plugin using the native import statement in JavaScript. Here you can assign any name you want to the function you are importing, and you only need to provide a path to the plugin's index.vanilla.js file:

import expand from './index.vanilla.js'

You can also use the CommonJS-formatted module located at index.js with require() for use with bundlers that don't use vanilla JS modules.

Once you have imported this plugin into your module, you can use the plugin as expand()

Using JS-in-CSS Stylesheets

The main goal of this plugin is to allow CSS authors the ability to style elements that can auto expand in height and width based on their contents and scroll dimensions as rendered in the browser.

The plugin has the following format:

expand(selector, rule)
  • selector is a string containing a CSS selector
  • option is a string containing the desired direction: width, height, or both

Example

This example will use the jsincss plugin to load a JS-in-CSS stylesheet making use of this plugin. To test it in a JavaScript module, import both the jsincss package and any helper plugins you want:

<script type=module>
  import jsincss from 'https://unpkg.com/jsincss/index.vanilla.js'
  import expand from 'https://unpkg.com/jsincss-auto-expand/index.vanilla.js'

  jsincss(() => `

    ${expand('input', 'width')}

    ${expand('textarea', 'height')}

  `)
</script>

It's also possible to write your stylesheets as a separate JavaScript module like this, where you import any helper plugins at the top of the stylesheet:

import expand from 'https://unpkg.com/jsincss-auto-expand/index.vanilla.js'

export default () => `

  ${expand('input', 'width')}

  ${expand('textarea', 'height')}

`

And then import both the jsincss plugin and the stylesheet into your code and run them like this, suppling any selector or events list the jsincss plugin might need to apply the stylesheet only the the element(s) and event(s) you require, depending on what you're doing:

import jsincss from 'https://unpkg.com/jsincss/index.vanilla.js'
import stylesheet from './path/to/stylesheet.js'

jsincss(stylesheet)

Compatible JS-in-CSS Stylesheet Loaders