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Zero configuration Preact widgets renderer in any host DOM

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Build Status Code Coverage downloads version gzip size module formats: umd, cjs, and es Supports Preact and React MIT License

Preact Habitat

A 900 Bytes module for that will make plugging in Preact components and widgets in any CMS or website as fun as lego!

Demos

Login Widget Source Code ๐Ÿ’ป

Login Widget Integration pen Codepen Demo ๐Ÿ–‹

Installation

npm install --save preact-habitat

Core Features

  • 2 ways to passing props from DOM.
  • Multiple rendering options.
  • Light weight ( < 1KB ).
  • Compatible with React widgets through preact-compat.
  • In use in high traffic web applications.

Basic Usage Example

import habitat from 'preact-habitat';
import WidgetAwesome from './components/WidgetAwesome';

const { render } = habitat(WidgetAwesome);

/**
** other selecors options:
**
** ".classname"  for querying DOM element by its class name
**
** "#div-id"  for querying DOM element by its ID value
**
** "[data-attribute-example='widget-here']"  for querying DOM element by its data attribute name & val
**
**/

render({
  selector: '.some-class', // Searches and mounts in <div class="some-class"></div>
  defaultProps: undefined, // Default props for all widgets
  inline: false,
  clean: false,
  clientSpecified: false
});

in webpack.config.js or any other build tool bundle output format should be UMD:

output: {
  libraryTarget: 'umd'
}

in the DOM you'd like to mount your widget in:

<div class="some-class"> <!-- as specified in render, habitat will mount the component in this-->
  <script type="application/json">
    {
      "title": "Widget Title passed as prop",
      "theme": "red",
      "anotherProp": "Thanks for trying this widget out!"
    }
  </script>
</div>

Now, build your production ready preact widget and you're all set, TADA! ๐ŸŽ‰

API Docs

habitat(...)

accepts a single Preact component as its only argument

example:
import { h } form 'preact';
import habitat from 'preact-habitat';

const Widget = () => <h1>Hello, World!</h1>;

const { render } = habitat(Widget); // NOTE: pass Widget and not <Widget />

render({
  ...
});

render(options)

render function accepts an options Object which supports the following properties:

option.selector

String: .myclass, #myid, [data-selector="my-data-attr"]

DOM Element selector used to retrieve the DOM elements you want to mount the widget in

option.defaultProps

Object: {} || undefined (default)

Default props to be rendered throughout widgets, you can replace each value declaring props.

option.inline

Boolean: true || false (default)

Set to true if you want to use the parent DOM node as a host for your widget without specifing any selectors.

example:

<div class="beautiful-container">
  <!-- inline set to true will make this widget render in it's parent 
      wrapper class="beautiful-container" without using selector option-->
  <script async src="cdn.preactwidget..."></script>
</div>

option.clean

Boolean: true || false (default)

clean will remove all the innerHTML from the HTMl element the widget will mount in.

example:

if we set the widget to be mounted inside the selector ".beautiful-container" with {clean: true} it will remove the Loading div as soon as it renders.

<div class="beautiful-container">
  <div class="loader">LOADING...</div>
</div>

<script async src="cdn.preactwidget..."></script>

option.clientSpecified

Boolean: true || false (default)

This option allows who ever using the script to specifit the selector which they'd like to mount the widget in

<div class="beautiful-container">
  <div class="loader">LOADING...</div>
</div>

<script async src="cdn.preactwidget..." data-mount-in=".beautiful-container"></script>

Passing Props

There are 2 ways to pass props, either via data-attributes or application/json script tag

via props script

Simply add a <script> tag with type="application/json" or type="text/props" and ensure the content is valid JSON. multiple script tags will be merged together and passed down.

<div class="beautiful-container" data-prop-name="preact habitat" data-prop-version="v3.0.0" data-prop-theme-color="green">
  <script type="application/json">
    {
      "name": "preact habitat",
      "version":"v3.0.0",
      "themeColor": "green"
    }
  </script>
</div>

via data-attribute

the data attribute has to always start with data-prop- examples:

data-prop-name will be available in your component as name

data-prop-version will be available in your component as version

data-prop-theme-color will be available in your component as themeColor NOTE the lowerCamelCase when there's a -

<div class="beautiful-container" data-prop-name="preact habitat" data-prop-version="v3.0.0" data-prop-theme-color="green">
  
</div>

License

MIT - Copyright (c) Zouhir Chahoud

Credits

Artwork By: Oleg Turbaba, Dribble

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