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Data: Implement atomic stores (#26866)
Co-authored-by: Greg Ziółkowski <[email protected]> Co-authored-by: Jon Surrell <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| /** | ||
| * External dependencies | ||
| */ | ||
| import { mapValues } from 'lodash'; | ||
|
|
||
| /** | ||
| * WordPress dependencies | ||
| */ | ||
| import { createDerivedAtom } from '@wordpress/stan'; | ||
|
|
||
| /** | ||
| * @typedef {import("../types").WPDataAtomicStoreConfig} WPDataAtomicStoreConfig | ||
| */ | ||
| /** | ||
| * @typedef {import("../types").WPDataStore} WPDataStore | ||
| */ | ||
| /** | ||
| * @template T | ||
| * @typedef {import('@wordpress/stan/src/types').WPAtom<T>} WPAtom | ||
| */ | ||
| /** | ||
| * @template T | ||
| * @typedef {import('@wordpress/stan/src/types').WPAtomFamilyItem<T>} WPAtomFamilyItem | ||
| */ | ||
|
|
||
| /** | ||
| * | ||
| * @param {string} name Store name. | ||
| * @param {WPDataAtomicStoreConfig} config Atomic store config. | ||
| * @return {WPDataStore} Store. | ||
| */ | ||
| export default function createAtomicStore( name, config ) { | ||
| return { | ||
| name, | ||
| instantiate: ( registry ) => { | ||
| const selectors = mapValues( config.selectors, ( atomSelector ) => { | ||
| return ( /** @type {any[]} **/ ...args ) => { | ||
| const get = registry.__internalGetAtomResolver() | ||
| ? registry.__internalGetAtomResolver() | ||
| : ( | ||
| /** @type {WPAtom<any>|WPAtomFamilyItem<any>} **/ atom | ||
| ) => registry.__internalGetAtomRegistry().get( atom ); | ||
| return atomSelector( ...args )( { get } ); | ||
| }; | ||
| } ); | ||
|
|
||
| const actions = mapValues( config.actions, ( atomAction ) => { | ||
| return ( /** @type {any[]} **/ ...args ) => { | ||
| return atomAction( ...args )( { | ||
| get: ( atomCreator ) => | ||
| registry | ||
| .__internalGetAtomRegistry() | ||
| .get( atomCreator ), | ||
| set: ( atomCreator, value ) => | ||
| registry | ||
| .__internalGetAtomRegistry() | ||
| .set( atomCreator, value ), | ||
| } ); | ||
| }; | ||
| } ); | ||
|
|
||
| return { | ||
| __internalIsAtomic: true, | ||
| getSelectors: () => selectors, | ||
| getActions: () => actions, | ||
|
|
||
| // Subscribing to the root atoms allows us | ||
| // To refresh the data when all root selector change. | ||
| subscribe: ( listener ) => { | ||
| const atom = createDerivedAtom( ( { get } ) => { | ||
| config.rootAtoms.forEach( ( subatom ) => | ||
| get( subatom ) | ||
| ); | ||
| } ); | ||
|
|
||
| return registry | ||
| .__internalGetAtomRegistry() | ||
| .subscribe( atom, listener ); | ||
| }, | ||
| }; | ||
| }, | ||
| }; | ||
| } |
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