@wordpress/components/build-module/ui/control-group/hook.js

UI components for WordPress.

import { cx as _cx } from "emotion";
import { createElement } from "@wordpress/element";

/**
 * Internal dependencies
 */
import { getValidChildren } from '../utils/get-valid-children';
import { useContextSystem } from '../context';
import { ControlGroupContext } from './context';
import * as styles from './styles';
/**
 * @param {import('../context').ViewOwnProps<import('./types').Props, 'div'>} props
 */

export function useControlGroup(props) {
  const {
    children,
    className,
    direction = 'row',
    templateColumns,
    ...otherProps
  } = useContextSystem(props, 'ControlGroup');
  const validChildren = getValidChildren(children);
  const isVertical = direction === 'column';
  const isGrid = !!templateColumns;

  const classes = _cx(styles.itemFocus, isGrid && styles.itemGrid, className);

  const clonedChildren = validChildren && validChildren.map((child, index) => {
    const isFirst = index === 0;
    const isLast = index + 1 === validChildren.length;
    const isOnly = isFirst && isLast;
    const isMiddle = !isFirst && !isLast; // @ts-ignore

    const _key = (child === null || child === void 0 ? void 0 : child.key) || index;
    /** @type {string | undefined} */


    let first;

    if (isFirst) {
      if (isVertical) {
        first = styles.firstRow;
      } else {
        first = styles.first;
      }
    }
    /** @type {string | undefined} */


    let last;

    if (isLast) {
      if (isVertical) {
        last = styles.lastRow;
      } else {
        last = styles.last;
      }
    }

    const contextStyles = _cx(first, isMiddle && styles.middle, last);

    const contextProps = {
      isFirst,
      isLast,
      isMiddle,
      isOnly,
      isVertical,
      styles: contextStyles
    };
    return createElement(ControlGroupContext.Provider, {
      key: _key,
      value: contextProps
    }, child);
  });
  return { ...otherProps,
    children: clonedChildren,
    className: classes,
    direction,
    templateColumns
  };
}
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