@carbon/ibm-products/lib/components/DataSpreadsheet/utils/checkSelectedHeaderCell.js

Carbon for IBM Products

/**
 * Copyright IBM Corp. 2020, 2025
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

var deepCloneObject = require('../../../global/js/utils/deepCloneObject.js');

const checkSelectedHeaderCell = (headerIndex, selectionAreas, headerType, items) => {
  const areasCloned = deepCloneObject.deepCloneObject(selectionAreas);
  const isSelectedHeader = areasCloned.some(area => {
    const oppositeType = headerType === 'column' ? 'row' : 'column';
    const minOppositeSelection = Math.min(area?.point1?.[oppositeType], area?.point2?.[oppositeType]);
    const maxOppositeSelection = Math.max(area?.point1?.[oppositeType], area?.point2?.[oppositeType]);
    const minSelection = Math.min(area?.point1?.[headerType], area?.point2?.[headerType]);
    const maxSelection = Math.max(area?.point1?.[headerType], area?.point2?.[headerType]);
    const isTrueSelectedState = items?.length - 1 === maxOppositeSelection && minOppositeSelection === 0;
    // console.log({minSelection, maxSelection});
    // Iterate over all columns included in the selection area
    for (let i = minSelection; i <= maxSelection; i++) {
      if (headerIndex === i && isTrueSelectedState) {
        return true;
      }
    }
    return false;
  });
  return isSelectedHeader;
};

exports.checkSelectedHeaderCell = checkSelectedHeaderCell;