import { createElement } from "react";
/**
 * External dependencies
 */
import classnames from 'classnames';

/**
 * Internal dependencies
 */
import { VisuallyHidden } from '../visually-hidden';
import { Wrapper, StyledField, StyledLabel, StyledHelp, StyledVisualLabel } from './styles/base-control-styles';
import { contextConnectWithoutRef, useContextSystem } from '../context';
export { useBaseControlProps } from './hooks';

/**
 * `BaseControl` is a component used to generate labels and help text for components handling user inputs.
 *
 * ```jsx
 * import { BaseControl, useBaseControlProps } from '@wordpress/components';
 *
 * // Render a `BaseControl` for a textarea input
 * const MyCustomTextareaControl = ({ children, ...baseProps }) => (
 * 	// `useBaseControlProps` is a convenience hook to get the props for the `BaseControl`
 * 	// and the inner control itself. Namely, it takes care of generating a unique `id`,
 * 	// properly associating it with the `label` and `help` elements.
 * 	const { baseControlProps, controlProps } = useBaseControlProps( baseProps );
 *
 * 	return (
 * 		<BaseControl { ...baseControlProps } __nextHasNoMarginBottom={ true }>
 * 			<textarea { ...controlProps }>
 * 			  { children }
 * 			</textarea>
 * 		</BaseControl>
 * 	);
 * );
 * ```
 */
const UnconnectedBaseControl = props => {
  const {
    __nextHasNoMarginBottom = false,
    id,
    label,
    hideLabelFromVision = false,
    help,
    className,
    children
  } = useContextSystem(props, 'BaseControl');
  return createElement(Wrapper, {
    className: className
  }, createElement(StyledField, {
    className: "components-base-control__field"
    // TODO: Official deprecation for this should start after all internal usages have been migrated
    ,
    __nextHasNoMarginBottom: __nextHasNoMarginBottom
  }, label && id && (hideLabelFromVision ? createElement(VisuallyHidden, {
    as: "label",
    htmlFor: id
  }, label) : createElement(StyledLabel, {
    className: "components-base-control__label",
    htmlFor: id
  }, label)), label && !id && (hideLabelFromVision ? createElement(VisuallyHidden, {
    as: "label"
  }, label) : createElement(VisualLabel, null, label)), children), !!help && createElement(StyledHelp, {
    id: id ? id + '__help' : undefined,
    className: "components-base-control__help",
    __nextHasNoMarginBottom: __nextHasNoMarginBottom
  }, help));
};

/**
 * `BaseControl.VisualLabel` is used to render a purely visual label inside a `BaseControl` component.
 *
 * It should only be used in cases where the children being rendered inside `BaseControl` are already accessibly labeled,
 * e.g., a button, but we want an additional visual label for that section equivalent to the labels `BaseControl` would
 * otherwise use if the `label` prop was passed.
 *
 * @example
 * import { BaseControl } from '@wordpress/components';
 *
 * const MyBaseControl = () => (
 * 	<BaseControl help="This button is already accessibly labeled.">
 * 		<BaseControl.VisualLabel>Author</BaseControl.VisualLabel>
 * 		<Button>Select an author</Button>
 * 	</BaseControl>
 * );
 */
export const VisualLabel = ({
  className,
  children,
  ...props
}) => {
  return createElement(StyledVisualLabel, {
    ...props,
    className: classnames('components-base-control__label', className)
  }, children);
};
export const BaseControl = Object.assign(contextConnectWithoutRef(UnconnectedBaseControl, 'BaseControl'), {
  VisualLabel
});
export default BaseControl;
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