32 lines
917 B
TypeScript
32 lines
917 B
TypeScript
/**
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* External dependencies
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*/
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import { useEffect } from '@wordpress/element';
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// Counter to keep track of the number of components using a particular class
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const classCounter: Record< string, number > = {};
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const useBodyClass = ( className: string ) => {
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useEffect( () => {
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if ( typeof document === 'undefined' ) return;
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// Initialize or increment the counter for this class
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classCounter[ className ] = ( classCounter[ className ] || 0 ) + 1;
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// Add the class if this is the first component to request it
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if ( classCounter[ className ] === 1 ) {
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document.body.classList.add( className );
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}
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// Cleanup: Decrement the counter and remove the class if this is the last component to use it
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return () => {
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classCounter[ className ]--;
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if ( classCounter[ className ] === 0 ) {
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document.body.classList.remove( className );
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}
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};
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}, [ className ] );
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};
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export default useBodyClass;
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