Resize Observer

The Resize Observer component offers a thin, declarative interface to the ResizeObserver API.

The resize observer will report changes to the dimensions of the elements it wraps through the p-resize event. When emitted, a collection of ResizeObserverEntry objects will be attached to event.detail that contains the target element and information about its dimensions.

<div class="resize-observer-overview">
  <p-resize-observer>
    <div>Resize this box and watch the console 👉</div>
  </p-resize-observer>
</div>

<script>
  const container = document.querySelector('.resize-observer-overview');
  const resizeObserver = container.querySelector('p-resize-observer');

  resizeObserver.addEventListener('p-resize', event => {
    console.log(event.detail);
  });
</script>

<style>
  .resize-observer-overview div {
    display: flex;
    border: solid 2px var(--p-input-border-color);
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
  }
</style>

import PResizeObserver from 'pure-uikit/dist/react/resize-observer';

const css = `
  .resize-observer-overview div {
    display: flex;
    border: solid 2px var(--p-input-border-color);
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
  }
`;

const App = () => (
  <>
    <div className="resize-observer-overview">
      <PResizeObserver onPResize={event => console.log(event.detail)}>
        <div>Resize this box and watch the console 👉</div>
      </PResizeObserver>
    </div>

    <style>{css}</style>
  </>
);

Importing

If you’re using the autoloader or the traditional loader, you can ignore this section. Otherwise, feel free to use any of the following snippets to cherry pick this component.

<script type="module" src="https://cdn.jsdelivr.net/npm/pure-uikit@1.3.13/cdn/components/resize-observer/resize-observer.js"></script>

import 'https://cdn.jsdelivr.net/npm/pure-uikit@1.3.13/cdn/components/resize-observer/resize-observer.js';

import 'pure-uikit/dist/components/resize-observer/resize-observer.js';

import PResizeObserver from 'pure-uikit/dist/react/resize-observer';

Slots

Learn more about using slots.

Properties

Learn more about attributes and properties.

Events

Learn more about events.