arc-resizable-mixin is a port of iron-fit-behavior that works with web components

Usage no npm install needed!

<script type="module">
  import advancedRestClientArcResizableMixin from 'https://cdn.skypack.dev/@advanced-rest-client/arc-resizable-mixin';



Use the @anypoint-web-components/awc module instead.

Published on NPM

Tests and publishing

This mixin is a port of iron-resizable-behavior that works with any JavaScript class.

ArcResizableMixin is a mixin that can be used in web components to coordinate the flow of resize events between "resizers" (elements that control the size or hidden state of their children) and "resizables" (elements that need to be notified when they are resized or un-hidden by their parents in order to take action on their new measurements).

Elements that perform measurement should add the ArcResizableMixin mixin to their element definition and listen for the resize event on themselves. This event will be fired when they become showing after having been hidden, when they are resized explicitly by another resizable, or when the window has been resized.

Note, the resize event is non-bubbling.


npm i @advanced-rest-client/arc-resizable-mixin


import { LitElement } from 'lit-element';
import { ArcResizableMixin } from '@advanced-rest-client/arc-resizable-mixin';

class ArcResizableImpl extends ArcResizableMixin(LitElement) {



git clone https://github.com/advanced-rest-client/arc-resizable-mixin
cd arc-resizable-mixin
npm install

Running the demo locally

npm start

Running the tests

npm test