useContainerBreakpoint

Import

import { useContainerBreakpoint } from '@dynatrace/strato-components-preview/core';

Use cases

The media query syntax is similar to the CSS one, which can be checked here. However, only width and height-related queries are currently supported (not orientation queries like orientation, prefers-color-scheme, etc.).

Single media query

The simplest way to use it is as follows:

const above500 = useContainerBreakpoint('(min-width: 500px)', containerRef);

The result, above500, is a boolean indicating whether the media query matches successfully, so whether the minimum width of the container is 500px.

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Multiple media queries

An array of media queries can also be passed in as follows:

const [above500, above1000] = useContainerBreakpoint([ '(min-width: 500px)', '(min-width: 1000px)' ], containerRef);

The result is an array, in which the first item above500, is a boolean indicating whether the first media query matches successfully, so whether or not the minimum width of the window is 500px, and the second item, above1000, is a boolean indicating whether the second media query matches successfully, so whether the minimum width of the container is 1000px.

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Caveats

Do not overuse this query, since it still has a high performance impact in combination with a very large number of containers and resizing events. Also, avoid styling the container's width/height depending on the result of this query or do it sensibly, since it might run into an endless render cycle.

Example: Don't add style={{ width: restrictedWidth ? '900px' : '300px') }} on the container, where the media query used is '(min-width: 130px) and (max-width: 800px)'.

Moreover, since only width and height-related queries can be supported and wrong usages can lead to endless render cycles, this is a temporary solution until the native CSS container queries are available.