kopia lustrzana https://github.com/shoelace-style/shoelace
40 wiersze
1.2 KiB
Markdown
40 wiersze
1.2 KiB
Markdown
# Resize Observer
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[component-header:sl-resize-observer]
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Resize observers offer a thin, declarative interface to the [`ResizeObserver API`](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver).
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The resize observer will report changes to the dimensions of the elements it wraps through the `sl-resize` event. When emitted, a collection of [`ResizeObserverEntry`](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserverEntry) objects will be attached to `event.detail`, containing the target element and information about its dimensions.
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```html preview
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<div class="resize-observer-overview">
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<sl-resize-observer>
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<div>
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Resize this box and watch the console 👉
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</div>
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</sl-resize-observer>
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</div>
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<script>
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const container = document.querySelector('.resize-observer-overview');
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const resizeObserver = container.querySelector('sl-resize-observer');
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resizeObserver.addEventListener('sl-resize', event => {
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console.log(event);
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});
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</script>
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<style>
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.resize-observer-overview div {
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display: flex;
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border: solid 2px var(--sl-input-border-color);
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align-items: center;
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justify-content: center;
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text-align: center;
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padding: 4rem 2rem;
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}
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</style>
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```
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[component-metadata:sl-resize-observer]
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