@wordpress/block-editor/build-module/components/link-control/use-internal-value.js

Generic block editor.

/**
 * WordPress dependencies
 */
import { useState, useEffect } from '@wordpress/element';
export default function useInternalValue(value) {
  const [internalValue, setInternalValue] = useState(value || {}); // If the value prop changes, update the internal state.

  useEffect(() => {
    setInternalValue(prevValue => {
      if (value && value !== prevValue) {
        return value;
      }

      return prevValue;
    });
  }, [value]);

  const setInternalURLInputValue = nextValue => {
    setInternalValue({ ...internalValue,
      url: nextValue
    });
  };

  const setInternalTextInputValue = nextValue => {
    setInternalValue({ ...internalValue,
      title: nextValue
    });
  };

  const createSetInternalSettingValueHandler = settingsKeys => nextValue => {
    // Only apply settings values which are defined in the settings prop.
    const settingsUpdates = Object.keys(nextValue).reduce((acc, key) => {
      if (settingsKeys.includes(key)) {
        acc[key] = nextValue[key];
      }

      return acc;
    }, {});
    setInternalValue({ ...internalValue,
      ...settingsUpdates
    });
  };

  return [internalValue, setInternalValue, setInternalURLInputValue, setInternalTextInputValue, createSetInternalSettingValueHandler];
}
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