35 lines
1.5 KiB
JavaScript
35 lines
1.5 KiB
JavaScript
import { useSyncExternalStoreWithSelector } from 'use-sync-external-store/shim/with-selector';
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import { useContext } from 'react';
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import { RechartsReduxContext } from './RechartsReduxContext';
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var noopDispatch = a => a;
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export var useAppDispatch = () => {
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var context = useContext(RechartsReduxContext);
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if (context) {
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return context.store.dispatch;
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}
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return noopDispatch;
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};
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var noop = () => {};
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var addNestedSubNoop = () => noop;
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var refEquality = (a, b) => a === b;
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/**
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* This is a recharts variant of `useSelector` from 'react-redux' package.
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*
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* The difference is that react-redux version will throw an Error when used outside of Redux context.
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*
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* This, recharts version, will return undefined instead.
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*
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* This is because we want to allow using our components outside the Chart wrapper,
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* and have people provide all props explicitly.
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*
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* If however they use the component inside a chart wrapper then those props become optional,
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* and we read them from Redux state instead.
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*
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* @param selector for pulling things out of Redux store; will not be called if the store is not accessible
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* @return whatever the selector returned; or undefined when outside of Redux store
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*/
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export function useAppSelector(selector) {
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var context = useContext(RechartsReduxContext);
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return useSyncExternalStoreWithSelector(context ? context.subscription.addNestedSub : addNestedSubNoop, context ? context.store.getState : noop, context ? context.store.getState : noop, context ? selector : noop, refEquality);
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} |