html-element-extended

• HTML ELEMENT EXTENDED

This goal of this project is to create a simple wrapper for web components that provides much of the useful functionality of lifecycle frameworks like react without the complication or overhead.

In particular there is no compile-time step for this library, each of the files can be loaded as a module.

To use this, (currently, until its on npmjs.com) To a caller add to package.json/dependencies

"html-element-extended": "https://github.com/mitra42/html-element-extended",

Then in your webcomponents.js file for example include it with

import { EL, HTMLElementExtended, getUrl } from './node_modules/html-element-extended/htmlelementextended.js';
import { ContentVideo } from './node_modules/html-element-extended/videoelementextended.js';
import { QRScanExtended, QRCodeExtended } from './node_modules/html-element-extended/qrlementextended.js';

To add a new module,

• Add a file here xxxelementextended.js
• Add to the docs here
• Add to package.json/exports

Each module is documented internally but as a TL;DR

** htmlelementextended.js

Provides HTMLElementExtended which can be used instead of HTMLElement to create your own web components, but has the key functionality already there.

** qrelementextended.js

Use HTMLElementExtended to build a QR scanner and a QR display

** videoelementextended.js

Uses HTMLElementExtended to create a number of video webComponents that know how to display videos from a variety of sources (based on the URL) allowing a single component to handle YouTube, Vimeo, Internet Archive, WebTorrent etc.

Note - all of these are under development. If you use them please introduce yourself in a git issue and I'll bear this in mind when making any breaking revisions.

** eventbus.js A simple event handler to hide the mechanisms

• At the page level create e.g. const bus = new EventBus
• At a receiving object typically bus.register("foo",(evt) => {...})
• At sending end bus.fire("foo",{a: 1, b: 2})
• remove is rarely used, but is ther for completeness.