useTransformRef.js 897 B

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", { value: true });
  3. exports.useTransformRef = void 0;
  4. var assignRef_1 = require("./assignRef");
  5. var useRef_1 = require("./useRef");
  6. /**
  7. * Create a _lense_ on Ref, making it possible to transform ref value
  8. * @param {ReactRef} ref
  9. * @param {Function} transformer. 👉 Ref would be __NOT updated__ on `transformer` update.
  10. * @returns {RefObject}
  11. *
  12. * @see https://github.com/theKashey/use-callback-ref#usetransformref-to-replace-reactuseimperativehandle
  13. * @example
  14. *
  15. * const ResizableWithRef = forwardRef((props, ref) =>
  16. * <Resizable {...props} ref={useTransformRef(ref, i => i ? i.resizable : null)}/>
  17. * );
  18. */
  19. function useTransformRef(ref, transformer) {
  20. return (0, useRef_1.useCallbackRef)(null, function (value) { return (0, assignRef_1.assignRef)(ref, transformer(value)); });
  21. }
  22. exports.useTransformRef = useTransformRef;