@carbon/ibm-products/lib/components/DataSpreadsheet/utils/checkActiveHeaderCell.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');

// Determines if a row or column header cell should receive a highlight/active background color
// Check each object in selectionAreas and see if the headerIndex is between
// point1.row and point2.row, inclusive
const checkActiveHeaderCell = (headerIndex, selectionAreas, headerType) => {
  const areasCloned = deepCloneObject.deepCloneObject(selectionAreas);
  const activeRowIndexes = [];
  areasCloned.forEach(area => {
    const greatestRowIndex = Math.max(area.point1?.[headerType], area.point2?.[headerType]);
    const lowestRowIndex = Math.min(area.point1?.[headerType], area.point2?.[headerType]);
    for (let i = lowestRowIndex; i <= greatestRowIndex; i++) {
      activeRowIndexes.push(i);
    }
  });
  const activeRowIndexesNoDuplicates = [...new Set(activeRowIndexes)];
  if (areasCloned?.length && activeRowIndexesNoDuplicates.includes(headerIndex)) {
    return true;
  }
  return false;
};

exports.checkActiveHeaderCell = checkActiveHeaderCell;