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19 lines
707 B
Plaintext
19 lines
707 B
Plaintext
import { assignRef } from './assignRef';
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import { useCallbackRef } from './useRef';
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/**
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* Create a _lense_ on Ref, making it possible to transform ref value
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* @param {ReactRef} ref
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* @param {Function} transformer. 👉 Ref would be __NOT updated__ on `transformer` update.
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* @returns {RefObject}
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*
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* @see https://github.com/theKashey/use-callback-ref#usetransformref-to-replace-reactuseimperativehandle
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* @example
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*
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* const ResizableWithRef = forwardRef((props, ref) =>
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* <Resizable {...props} ref={useTransformRef(ref, i => i ? i.resizable : null)}/>
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* );
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*/
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export function useTransformRef(ref, transformer) {
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return useCallbackRef(null, (value) => assignRef(ref, transformer(value)));
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}
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