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Simple JavaScript function to make any embed responsive
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README.md

Responsive Embeds

BracketSpace Micropackage npm License

Micropackage logo

🧬 About Responsive Embeds

This package provides a JavaScript function which can make any embed (like youtube video iframe) responsive.

💾 Installation

npm install --save @micropackage/responsive-embeds

or

yarn add @micropackage/responsive-embeds

🕹 Usage

import responsiveEmbeds from 'responsive-embeds';

// See arguments description below.
responsiveEmbeds( element, params );

const iframe = document.getElementById( 'some-iframe' );
const embeds = document.querySelectorAll( '.responsive-embed' );

responsiveEmbeds( 'iframe[src*="youtube.com"]', {
  watch: true,
  wrapClass: 'my-custom-wrap',
} );
responsiveEmbeds( iframe );
responsiveEmbeds( embeds );

How it works?

This function wraps given element(s) in a div with relative position and padding-top set as percentage to match the original element's proportions. The element itself is positioned absolute inside this div with height and width set to 100%. This means the element will always match parent width also preserving it's original proportions.

This function can be used with any HTML element which initial proportions should be preserved.

⚙️ Arguments

This function has two arguments.

Argument Type Description
element (string|HTMLElement|NodeList) This can be either string selector which will be passed to document.querySelectorAll or an HTML node (HTMLElement) or NodeList instance.
params (object) Additional params (see table below)
(optional)

Params

Param Type Description
wrapClass (string) Class name applied to the wrapping div.
Default: 'responsive-embed-wrap'
watch (bool|string|HTMLElement) When using string selector as a first argument, this param can be used to observe changes in the DOM and make responsive all the items which will be added later. If this is set to true entire document is observed. Alternatively a string selector or HTMLElement object can be set to observe only changes inside given element.
Default: false

Watching example

Let's say we have a WordPress theme with it's content wrapped in a div.entry-content element. We are using some plugin which loads youtube videos using youtube API, so the iframes might not be present in the DOM while we initialise responsiveEmbeds.

responsiveEmbeds( 'iframe[src*="youtube.com"]', {
  watch: '.entry-content',
} );

This call will start observing the DOM changes inside the div.entry-content and will make responsive any added node which will match the selector iframe[src*="youtube.com"]. It will also transform all the matching nodes which are already present in the DOM.

📦 About the Micropackage project

Micropackages - as the name suggests - are micro packages with a tiny bit of reusable code, helpful particularly in WordPress development.

The aim is to have multiple packages which can be put together to create something bigger by defining only the structure.

Micropackages are maintained by BracketSpace.

📖 Changelog

See the changelog file.

📃 License

GNU General Public License (GPL) v3.0. See the LICENSE file for more information.

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