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use-get-media.js
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use-get-media.js
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/**
* WordPress dependencies
*/
import { useState } from '@wordpress/element';
import { useSelect } from '@wordpress/data';
import { store as coreStore } from '@wordpress/core-data';
/**
* Retrieves the extended media info for each gallery image from the store. This is used to
* determine which image size options are available for the current gallery.
*
* @param {Array} innerBlockImages An array of the innerBlock images currently in the gallery.
*
* @return {Array} An array of media info options for each gallery image.
*/
export default function useGetMedia( innerBlockImages ) {
const [ currentImageMedia, setCurrentImageMedia ] = useState( [] );
const imageMedia = useSelect(
( select ) => {
if ( ! innerBlockImages?.length ) {
return currentImageMedia;
}
const imageIds = innerBlockImages
.map( ( imageBlock ) => imageBlock.attributes.id )
.filter( ( id ) => id !== undefined );
if ( imageIds.length === 0 ) {
return currentImageMedia;
}
return select( coreStore ).getMediaItems( {
include: imageIds.join( ',' ),
per_page: imageIds.length,
} );
},
[ innerBlockImages ]
);
if (
imageMedia?.length !== currentImageMedia?.length ||
imageMedia?.some(
( newImage ) =>
! currentImageMedia.find(
( currentImage ) => currentImage.id === newImage.id
)
)
) {
setCurrentImageMedia( imageMedia );
return imageMedia;
}
return currentImageMedia;
}