@mui/x-data-grid/components/cell/GridSkeletonCell.js

The Community plan edition of the Data Grid components (MUI X).

import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
const _excluded = ["field", "type", "align", "width", "height", "empty", "style", "className"];
import * as React from 'react';
import PropTypes from 'prop-types';
import clsx from 'clsx';
import Skeleton from '@mui/material/Skeleton';
import { unstable_composeClasses as composeClasses, unstable_capitalize as capitalize } from '@mui/utils';
import { fastMemo } from '@mui/x-internals/fastMemo';
import { createRandomNumberGenerator } from "../../utils/utils.js";
import { useGridRootProps } from "../../hooks/utils/useGridRootProps.js";
import { getDataGridUtilityClass } from "../../constants/gridClasses.js";
import { jsx as _jsx } from "react/jsx-runtime";
const CIRCULAR_CONTENT_SIZE = '1.3em';
const CONTENT_HEIGHT = '1.2em';
const DEFAULT_CONTENT_WIDTH_RANGE = [40, 80];
const CONTENT_WIDTH_RANGE_BY_TYPE = {
  number: [40, 60],
  string: [40, 80],
  date: [40, 60],
  dateTime: [60, 80],
  singleSelect: [40, 80]
};
const useUtilityClasses = ownerState => {
  const {
    align,
    classes,
    empty
  } = ownerState;
  const slots = {
    root: ['cell', 'cellSkeleton', `cell--text${align ? capitalize(align) : 'Left'}`, empty && 'cellEmpty']
  };
  return composeClasses(slots, getDataGridUtilityClass, classes);
};
const randomNumberGenerator = createRandomNumberGenerator(12345);
function GridSkeletonCell(props) {
  const {
      field,
      type,
      align,
      width,
      height,
      empty = false,
      style,
      className
    } = props,
    other = _objectWithoutPropertiesLoose(props, _excluded);
  const rootProps = useGridRootProps();
  const ownerState = {
    classes: rootProps.classes,
    align,
    empty
  };
  const classes = useUtilityClasses(ownerState);

  // Memo prevents the non-circular skeleton widths changing to random widths on every render
  const skeletonProps = React.useMemo(() => {
    const isCircularContent = type === 'boolean' || type === 'actions';
    if (isCircularContent) {
      return {
        variant: 'circular',
        width: CIRCULAR_CONTENT_SIZE,
        height: CIRCULAR_CONTENT_SIZE
      };
    }

    // The width of the skeleton is a random number between the min and max values
    // The min and max values are determined by the type of the column
    const [min, max] = type ? CONTENT_WIDTH_RANGE_BY_TYPE[type] ?? DEFAULT_CONTENT_WIDTH_RANGE : DEFAULT_CONTENT_WIDTH_RANGE;
    return {
      variant: 'text',
      width: `${Math.round(randomNumberGenerator(min, max))}%`,
      height: CONTENT_HEIGHT
    };
  }, [type]);
  return /*#__PURE__*/_jsx("div", _extends({
    "data-field": field,
    className: clsx(classes.root, className),
    style: _extends({
      height,
      maxWidth: width,
      minWidth: width
    }, style)
  }, other, {
    children: !empty && /*#__PURE__*/_jsx(Skeleton, _extends({}, skeletonProps))
  }));
}
process.env.NODE_ENV !== "production" ? GridSkeletonCell.propTypes = {
  // ----------------------------- Warning --------------------------------
  // | These PropTypes are generated from the TypeScript type definitions |
  // | To update them edit the TypeScript types and run "pnpm proptypes"  |
  // ----------------------------------------------------------------------
  align: PropTypes.string,
  /**
   * If `true`, the cell will not display the skeleton but still reserve the cell space.
   * @default false
   */
  empty: PropTypes.bool,
  field: PropTypes.string,
  height: PropTypes.oneOfType([PropTypes.oneOf(['auto']), PropTypes.number]),
  type: PropTypes.oneOf(['actions', 'boolean', 'custom', 'date', 'dateTime', 'number', 'singleSelect', 'string']),
  width: PropTypes.oneOfType([PropTypes.number, PropTypes.string])
} : void 0;
const Memoized = fastMemo(GridSkeletonCell);
export { Memoized as GridSkeletonCell };