mr-excel/src/utils/content-generator/content-types.ts

A versatile JavaScript library for effortlessly generating .xlsx files from input objects. Seamlessly create Excel spreadsheets with data, formatting, formulas, and more.

export function contentTypeGenerator(
  sheetContentType: string,
  commentId: number[],
  arrTypes: string[],
  sheetDrawers: string[],
  checkboxForm: string[],
  needCalcChain: boolean,
  tableRef: string[]
) {
  let typeCheck: {
    [key: string]: boolean;
  } = {};
  return (
    '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\n' +
    '<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">' +
    '<Default Extension="rels"  ContentType="application/vnd.openxmlformats-package.relationships+xml"/>' +
    '<Default Extension="vml" ContentType="application/vnd.openxmlformats-officedocument.vmlDrawing" />' +
    '<Default Extension="xml" ContentType="application/xml" />' +
    "<Override" +
    ' ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml"' +
    ' PartName="/xl/workbook.xml" />' +
    '<Override ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml"' +
    ' PartName="/xl/styles.xml" />' +
    '<Override ContentType="application/vnd.openxmlformats-officedocument.theme+xml"' +
    ' PartName="/xl/theme/theme1.xml" />' +
    arrTypes.reduce((res, curr) => {
      curr = curr.toLowerCase();
      if (typeCheck[curr]) {
        return res;
      }
      if (curr == "svg") {
        typeCheck["png"] = true;
        typeCheck["svg"] = true;
        return (
          res +
          '<Default Extension="png" ContentType="image/png"/>' +
          '<Default Extension="svg" ContentType="image/svg+xml"/>'
        );
      } else if (curr == "jpeg" || curr == "jpg") {
        typeCheck["jpeg"] = true;
        typeCheck["jpg"] = true;
        return (
          res + '<Default Extension="' + curr + '" ContentType="image/jpeg"/>'
        );
      } else {
        typeCheck[curr] = true;
        return (
          res +
          '<Default Extension="' +
          curr +
          '" ContentType="image/' +
          curr +
          '"/>'
        );
      }
    }, "") +
    commentId.reduce((res, curr) => {
      return (
        res +
        '<Override PartName="/xl/comments' +
        curr +
        '.xml"' +
        ' ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml" />'
      );
    }, "") +
    sheetContentType +
    (tableRef.length > 0
      ? tableRef.reduce((res, cur) => {
          return (
            res +
            '<Override PartName="/xl/tables/' +
            cur +
            '" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.table+xml"/>'
          );
        }, "")
      : "") +
    "<Override" +
    ' ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml"' +
    ' PartName="/xl/sharedStrings.xml" />' +
    (needCalcChain
      ? '<Override PartName="/xl/calcChain.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.calcChain+xml"/>'
      : "") +
    '<Override PartName="/docProps/core.xml" ' +
    ' ContentType="application/vnd.openxmlformats-package.core-properties+xml" />' +
    sheetDrawers.reduce((res, cu) => {
      return (
        res +
        '<Override PartName="/xl/drawings/' +
        cu +
        '"' +
        ' ContentType="application/vnd.openxmlformats-officedocument.drawing+xml" />'
      );
    }, "") +
    (checkboxForm.length > 0
      ? checkboxForm.reduce((res, curr, index) => {
          return (
            res +
            '<Override PartName="/xl/ctrlProps/ctrlProp' +
            (index + 1) +
            '.xml" ContentType="application/vnd.ms-excel.controlproperties+xml"/>'
          );
        }, "")
      : "") +
    '<Override PartName="/docProps/app.xml" ' +
    ' ContentType="application/vnd.openxmlformats-officedocument.extended-properties+xml" />' +
    "</Types>"
  );
}