@wordpress/components/build-module/truncate/hook.js

UI components for WordPress.

import { cx as _cx } from "emotion";
import { css as _css } from "emotion";

/**
 * WordPress dependencies
 */
import { useMemo } from '@wordpress/element';
/**
 * Internal dependencies
 */

import { useContextSystem } from '../ui/context';
import * as styles from './styles';
import { TRUNCATE_ELLIPSIS, TRUNCATE_TYPE, truncateContent } from './utils';
/**
 * @param {import('../ui/context').ViewOwnProps<import('./types').Props, 'span'>} props
 */

export default function useTruncate(props) {
  const {
    className,
    children,
    ellipsis = TRUNCATE_ELLIPSIS,
    ellipsizeMode = TRUNCATE_TYPE.auto,
    limit = 0,
    numberOfLines = 0,
    ...otherProps
  } = useContextSystem(props, 'Truncate');
  const truncatedContent = truncateContent(typeof children === 'string' ?
  /** @type {string} */
  children : '', {
    ellipsis,
    ellipsizeMode,
    limit,
    numberOfLines
  });
  const shouldTruncate = ellipsizeMode === TRUNCATE_TYPE.auto;
  const classes = useMemo(() => {
    const sx = {};
    sx.numberOfLines = /*#__PURE__*/_css("-webkit-box-orient:vertical;-webkit-line-clamp:", numberOfLines, ";display:-webkit-box;overflow:hidden;" + (process.env.NODE_ENV === "production" ? "" : "/*# sourceMappingURL=data:application/json;charset=utf-8;base64,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 */"));
    return _cx(shouldTruncate && !numberOfLines && styles.Truncate, shouldTruncate && !!numberOfLines && sx.numberOfLines, className);
  }, [className, numberOfLines, shouldTruncate]);
  return { ...otherProps,
    className: classes,
    children: truncatedContent
  };
}
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