@zlooun/exceljs/dist/es5/stream/xlsx/worksheet-writer.js

Fixes the problem with writing a file using streams and not using RAM based on 'exeljs'

"use strict";

function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _regeneratorRuntime() { "use strict"; /*! regenerator-runtime -- Copyright (c) 2014-present, Facebook, Inc. -- license (MIT): https://github.com/facebook/regenerator/blob/main/LICENSE */ _regeneratorRuntime = function _regeneratorRuntime() { return exports; }; var exports = {}, Op = Object.prototype, hasOwn = Op.hasOwnProperty, defineProperty = Object.defineProperty || function (obj, key, desc) { obj[key] = desc.value; }, $Symbol = "function" == typeof Symbol ? Symbol : {}, iteratorSymbol = $Symbol.iterator || "@@iterator", asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator", toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag"; function define(obj, key, value) { return Object.defineProperty(obj, key, { value: value, enumerable: !0, configurable: !0, writable: !0 }), obj[key]; } try { define({}, ""); } catch (err) { define = function define(obj, key, value) { return obj[key] = value; }; } function wrap(innerFn, outerFn, self, tryLocsList) { var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator, generator = Object.create(protoGenerator.prototype), context = new Context(tryLocsList || []); return defineProperty(generator, "_invoke", { value: makeInvokeMethod(innerFn, self, context) }), generator; } function tryCatch(fn, obj, arg) { try { return { type: "normal", arg: fn.call(obj, arg) }; } catch (err) { return { type: "throw", arg: err }; } } exports.wrap = wrap; var ContinueSentinel = {}; function Generator() {} function GeneratorFunction() {} function GeneratorFunctionPrototype() {} var IteratorPrototype = {}; define(IteratorPrototype, iteratorSymbol, function () { return this; }); var getProto = Object.getPrototypeOf, NativeIteratorPrototype = getProto && getProto(getProto(values([]))); NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol) && (IteratorPrototype = NativeIteratorPrototype); var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype); function defineIteratorMethods(prototype) { ["next", "throw", "return"].forEach(function (method) { define(prototype, method, function (arg) { return this._invoke(method, arg); }); }); } function AsyncIterator(generator, PromiseImpl) { function invoke(method, arg, resolve, reject) { var record = tryCatch(generator[method], generator, arg); if ("throw" !== record.type) { var result = record.arg, value = result.value; return value && "object" == _typeof(value) && hasOwn.call(value, "__await") ? PromiseImpl.resolve(value.__await).then(function (value) { invoke("next", value, resolve, reject); }, function (err) { invoke("throw", err, resolve, reject); }) : PromiseImpl.resolve(value).then(function (unwrapped) { result.value = unwrapped, resolve(result); }, function (error) { return invoke("throw", error, resolve, reject); }); } reject(record.arg); } var previousPromise; defineProperty(this, "_invoke", { value: function value(method, arg) { function callInvokeWithMethodAndArg() { return new PromiseImpl(function (resolve, reject) { invoke(method, arg, resolve, reject); }); } return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg(); } }); } function makeInvokeMethod(innerFn, self, context) { var state = "suspendedStart"; return function (method, arg) { if ("executing" === state) throw new Error("Generator is already running"); if ("completed" === state) { if ("throw" === method) throw arg; return doneResult(); } for (context.method = method, context.arg = arg;;) { var delegate = context.delegate; if (delegate) { var delegateResult = maybeInvokeDelegate(delegate, context); if (delegateResult) { if (delegateResult === ContinueSentinel) continue; return delegateResult; } } if ("next" === context.method) context.sent = context._sent = context.arg;else if ("throw" === context.method) { if ("suspendedStart" === state) throw state = "completed", context.arg; context.dispatchException(context.arg); } else "return" === context.method && context.abrupt("return", context.arg); state = "executing"; var record = tryCatch(innerFn, self, context); if ("normal" === record.type) { if (state = context.done ? "completed" : "suspendedYield", record.arg === ContinueSentinel) continue; return { value: record.arg, done: context.done }; } "throw" === record.type && (state = "completed", context.method = "throw", context.arg = record.arg); } }; } function maybeInvokeDelegate(delegate, context) { var methodName = context.method, method = delegate.iterator[methodName]; if (undefined === method) return context.delegate = null, "throw" === methodName && delegate.iterator.return && (context.method = "return", context.arg = undefined, maybeInvokeDelegate(delegate, context), "throw" === context.method) || "return" !== methodName && (context.method = "throw", context.arg = new TypeError("The iterator does not provide a '" + methodName + "' method")), ContinueSentinel; var record = tryCatch(method, delegate.iterator, context.arg); if ("throw" === record.type) return context.method = "throw", context.arg = record.arg, context.delegate = null, ContinueSentinel; var info = record.arg; return info ? info.done ? (context[delegate.resultName] = info.value, context.next = delegate.nextLoc, "return" !== context.method && (context.method = "next", context.arg = undefined), context.delegate = null, ContinueSentinel) : info : (context.method = "throw", context.arg = new TypeError("iterator result is not an object"), context.delegate = null, ContinueSentinel); } function pushTryEntry(locs) { var entry = { tryLoc: locs[0] }; 1 in locs && (entry.catchLoc = locs[1]), 2 in locs && (entry.finallyLoc = locs[2], entry.afterLoc = locs[3]), this.tryEntries.push(entry); } function resetTryEntry(entry) { var record = entry.completion || {}; record.type = "normal", delete record.arg, entry.completion = record; } function Context(tryLocsList) { this.tryEntries = [{ tryLoc: "root" }], tryLocsList.forEach(pushTryEntry, this), this.reset(!0); } function values(iterable) { if (iterable) { var iteratorMethod = iterable[iteratorSymbol]; if (iteratorMethod) return iteratorMethod.call(iterable); if ("function" == typeof iterable.next) return iterable; if (!isNaN(iterable.length)) { var i = -1, next = function next() { for (; ++i < iterable.length;) if (hasOwn.call(iterable, i)) return next.value = iterable[i], next.done = !1, next; return next.value = undefined, next.done = !0, next; }; return next.next = next; } } return { next: doneResult }; } function doneResult() { return { value: undefined, done: !0 }; } return GeneratorFunction.prototype = GeneratorFunctionPrototype, defineProperty(Gp, "constructor", { value: GeneratorFunctionPrototype, configurable: !0 }), defineProperty(GeneratorFunctionPrototype, "constructor", { value: GeneratorFunction, configurable: !0 }), GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction"), exports.isGeneratorFunction = function (genFun) { var ctor = "function" == typeof genFun && genFun.constructor; return !!ctor && (ctor === GeneratorFunction || "GeneratorFunction" === (ctor.displayName || ctor.name)); }, exports.mark = function (genFun) { return Object.setPrototypeOf ? Object.setPrototypeOf(genFun, GeneratorFunctionPrototype) : (genFun.__proto__ = GeneratorFunctionPrototype, define(genFun, toStringTagSymbol, "GeneratorFunction")), genFun.prototype = Object.create(Gp), genFun; }, exports.awrap = function (arg) { return { __await: arg }; }, defineIteratorMethods(AsyncIterator.prototype), define(AsyncIterator.prototype, asyncIteratorSymbol, function () { return this; }), exports.AsyncIterator = AsyncIterator, exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) { void 0 === PromiseImpl && (PromiseImpl = Promise); var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl); return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) { return result.done ? result.value : iter.next(); }); }, defineIteratorMethods(Gp), define(Gp, toStringTagSymbol, "Generator"), define(Gp, iteratorSymbol, function () { return this; }), define(Gp, "toString", function () { return "[object Generator]"; }), exports.keys = function (val) { var object = Object(val), keys = []; for (var key in object) keys.push(key); return keys.reverse(), function next() { for (; keys.length;) { var key = keys.pop(); if (key in object) return next.value = key, next.done = !1, next; } return next.done = !0, next; }; }, exports.values = values, Context.prototype = { constructor: Context, reset: function reset(skipTempReset) { if (this.prev = 0, this.next = 0, this.sent = this._sent = undefined, this.done = !1, this.delegate = null, this.method = "next", this.arg = undefined, this.tryEntries.forEach(resetTryEntry), !skipTempReset) for (var name in this) "t" === name.charAt(0) && hasOwn.call(this, name) && !isNaN(+name.slice(1)) && (this[name] = undefined); }, stop: function stop() { this.done = !0; var rootRecord = this.tryEntries[0].completion; if ("throw" === rootRecord.type) throw rootRecord.arg; return this.rval; }, dispatchException: function dispatchException(exception) { if (this.done) throw exception; var context = this; function handle(loc, caught) { return record.type = "throw", record.arg = exception, context.next = loc, caught && (context.method = "next", context.arg = undefined), !!caught; } for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i], record = entry.completion; if ("root" === entry.tryLoc) return handle("end"); if (entry.tryLoc <= this.prev) { var hasCatch = hasOwn.call(entry, "catchLoc"), hasFinally = hasOwn.call(entry, "finallyLoc"); if (hasCatch && hasFinally) { if (this.prev < entry.catchLoc) return handle(entry.catchLoc, !0); if (this.prev < entry.finallyLoc) return handle(entry.finallyLoc); } else if (hasCatch) { if (this.prev < entry.catchLoc) return handle(entry.catchLoc, !0); } else { if (!hasFinally) throw new Error("try statement without catch or finally"); if (this.prev < entry.finallyLoc) return handle(entry.finallyLoc); } } } }, abrupt: function abrupt(type, arg) { for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i]; if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) { var finallyEntry = entry; break; } } finallyEntry && ("break" === type || "continue" === type) && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc && (finallyEntry = null); var record = finallyEntry ? finallyEntry.completion : {}; return record.type = type, record.arg = arg, finallyEntry ? (this.method = "next", this.next = finallyEntry.finallyLoc, ContinueSentinel) : this.complete(record); }, complete: function complete(record, afterLoc) { if ("throw" === record.type) throw record.arg; return "break" === record.type || "continue" === record.type ? this.next = record.arg : "return" === record.type ? (this.rval = this.arg = record.arg, this.method = "return", this.next = "end") : "normal" === record.type && afterLoc && (this.next = afterLoc), ContinueSentinel; }, finish: function finish(finallyLoc) { for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i]; if (entry.finallyLoc === finallyLoc) return this.complete(entry.completion, entry.afterLoc), resetTryEntry(entry), ContinueSentinel; } }, catch: function _catch(tryLoc) { for (var i = this.tryEntries.length - 1; i >= 0; --i) { var entry = this.tryEntries[i]; if (entry.tryLoc === tryLoc) { var record = entry.completion; if ("throw" === record.type) { var thrown = record.arg; resetTryEntry(entry); } return thrown; } } throw new Error("illegal catch attempt"); }, delegateYield: function delegateYield(iterable, resultName, nextLoc) { return this.delegate = { iterator: values(iterable), resultName: resultName, nextLoc: nextLoc }, "next" === this.method && (this.arg = undefined), ContinueSentinel; } }, exports; }
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return _typeof(key) === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (_typeof(input) !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (_typeof(res) !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
var _ = require('../../utils/under-dash');
var RelType = require('../../xlsx/rel-type');
var colCache = require('../../utils/col-cache');
var Encryptor = require('../../utils/encryptor');
var Dimensions = require('../../doc/range');
var StringBuf = require('../../utils/string-buf');
var Row = require('../../doc/row');
var Column = require('../../doc/column');
var SheetRelsWriter = require('./sheet-rels-writer');
var SheetCommentsWriter = require('./sheet-comments-writer');
var DataValidations = require('../../doc/data-validations');
var xmlBuffer = new StringBuf();

// ============================================================================================
// Xforms
var ListXform = require('../../xlsx/xform/list-xform');
var DataValidationsXform = require('../../xlsx/xform/sheet/data-validations-xform');
var SheetPropertiesXform = require('../../xlsx/xform/sheet/sheet-properties-xform');
var SheetFormatPropertiesXform = require('../../xlsx/xform/sheet/sheet-format-properties-xform');
var ColXform = require('../../xlsx/xform/sheet/col-xform');
var RowXform = require('../../xlsx/xform/sheet/row-xform');
var HyperlinkXform = require('../../xlsx/xform/sheet/hyperlink-xform');
var SheetViewXform = require('../../xlsx/xform/sheet/sheet-view-xform');
var SheetProtectionXform = require('../../xlsx/xform/sheet/sheet-protection-xform');
var PageMarginsXform = require('../../xlsx/xform/sheet/page-margins-xform');
var PageSetupXform = require('../../xlsx/xform/sheet/page-setup-xform');
var AutoFilterXform = require('../../xlsx/xform/sheet/auto-filter-xform');
var PictureXform = require('../../xlsx/xform/sheet/picture-xform');
var ConditionalFormattingsXform = require('../../xlsx/xform/sheet/cf/conditional-formattings-xform');
var HeaderFooterXform = require('../../xlsx/xform/sheet/header-footer-xform');
var RowBreaksXform = require('../../xlsx/xform/sheet/row-breaks-xform');

// since prepare and render are functional, we can use singletons
var xform = {
  dataValidations: new DataValidationsXform(),
  sheetProperties: new SheetPropertiesXform(),
  sheetFormatProperties: new SheetFormatPropertiesXform(),
  columns: new ListXform({
    tag: 'cols',
    length: false,
    childXform: new ColXform()
  }),
  row: new RowXform(),
  hyperlinks: new ListXform({
    tag: 'hyperlinks',
    length: false,
    childXform: new HyperlinkXform()
  }),
  sheetViews: new ListXform({
    tag: 'sheetViews',
    length: false,
    childXform: new SheetViewXform()
  }),
  sheetProtection: new SheetProtectionXform(),
  pageMargins: new PageMarginsXform(),
  pageSeteup: new PageSetupXform(),
  autoFilter: new AutoFilterXform(),
  picture: new PictureXform(),
  conditionalFormattings: new ConditionalFormattingsXform(),
  headerFooter: new HeaderFooterXform(),
  rowBreaks: new RowBreaksXform()
};

// ============================================================================================
var WorksheetWriter = /*#__PURE__*/function () {
  function WorksheetWriter(options) {
    _classCallCheck(this, WorksheetWriter);
    // in a workbook, each sheet will have a number
    this.id = options.id;

    // and a name
    this.name = options.name || "Sheet".concat(this.id);

    // add a state
    this.state = options.state || 'visible';

    // rows are stored here while they need to be worked on.
    // when they are committed, they will be deleted.
    this._rows = [];

    // column definitions
    this._columns = null;

    // column keys (addRow convenience): key ==> this._columns index
    this._keys = {};

    // keep a record of all row and column pageBreaks
    this._merges = [];
    this._merges.add = function () {}; // ignore cell instruction

    // keep record of all hyperlinks
    this._sheetRelsWriter = new SheetRelsWriter(options);
    this._sheetCommentsWriter = new SheetCommentsWriter(this, this._sheetRelsWriter, options);

    // keep a record of dimensions
    this._dimensions = new Dimensions();

    // first uncommitted row
    this._rowZero = 1;

    // committed flag
    this.committed = false;

    // for data validations
    this.dataValidations = new DataValidations();

    // for sharing formulae
    this._formulae = {};
    this._siFormulae = 0;

    // keep a record of conditionalFormattings
    this.conditionalFormatting = [];

    // keep a record of all row and column pageBreaks
    this.rowBreaks = [];

    // for default row height, outline levels, etc
    this.properties = Object.assign({}, {
      defaultRowHeight: 15,
      dyDescent: 55,
      outlineLevelCol: 0,
      outlineLevelRow: 0
    }, options.properties);
    this.headerFooter = Object.assign({}, {
      differentFirst: false,
      differentOddEven: false,
      oddHeader: null,
      oddFooter: null,
      evenHeader: null,
      evenFooter: null,
      firstHeader: null,
      firstFooter: null
    }, options.headerFooter);

    // for all things printing
    this.pageSetup = Object.assign({}, {
      margins: {
        left: 0.7,
        right: 0.7,
        top: 0.75,
        bottom: 0.75,
        header: 0.3,
        footer: 0.3
      },
      orientation: 'portrait',
      horizontalDpi: 4294967295,
      verticalDpi: 4294967295,
      fitToPage: !!(options.pageSetup && (options.pageSetup.fitToWidth || options.pageSetup.fitToHeight) && !options.pageSetup.scale),
      pageOrder: 'downThenOver',
      blackAndWhite: false,
      draft: false,
      cellComments: 'None',
      errors: 'displayed',
      scale: 100,
      fitToWidth: 1,
      fitToHeight: 1,
      paperSize: undefined,
      showRowColHeaders: false,
      showGridLines: false,
      horizontalCentered: false,
      verticalCentered: false,
      rowBreaks: null,
      colBreaks: null
    }, options.pageSetup);

    // using shared strings creates a smaller xlsx file but may use more memory
    this.useSharedStrings = options.useSharedStrings || false;
    this._workbook = options.workbook;
    this.hasComments = false;

    // views
    this._views = options.views || [];

    // auto filter
    this.autoFilter = options.autoFilter || null;
    this._media = [];

    // worksheet protection
    this.sheetProtection = null;

    // start writing to stream now
    this._writeOpenWorksheet();
    this.startedData = false;
  }
  _createClass(WorksheetWriter, [{
    key: "workbook",
    get: function get() {
      return this._workbook;
    }
  }, {
    key: "stream",
    get: function get() {
      if (!this._stream) {
        // eslint-disable-next-line no-underscore-dangle
        this._stream = this._workbook._openStream("/xl/worksheets/sheet".concat(this.id, ".xml"));

        // pause stream to prevent 'data' events
        this._stream.pause();
      }
      return this._stream;
    }

    // destroy - not a valid operation for a streaming writer
    // even though some streamers might be able to, it's a bad idea.
  }, {
    key: "destroy",
    value: function destroy() {
      throw new Error('Invalid Operation: destroy');
    }
  }, {
    key: "commit",
    value: function () {
      var _commit = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee() {
        var _iterator, _step, cRow;
        return _regeneratorRuntime().wrap(function _callee$(_context) {
          while (1) switch (_context.prev = _context.next) {
            case 0:
              if (!this.committed) {
                _context.next = 2;
                break;
              }
              return _context.abrupt("return");
            case 2:
              // commit all rows
              _iterator = _createForOfIteratorHelper(this._rows);
              _context.prev = 3;
              _iterator.s();
            case 5:
              if ((_step = _iterator.n()).done) {
                _context.next = 12;
                break;
              }
              cRow = _step.value;
              if (!cRow) {
                _context.next = 10;
                break;
              }
              _context.next = 10;
              return this._writeRow(cRow);
            case 10:
              _context.next = 5;
              break;
            case 12:
              _context.next = 17;
              break;
            case 14:
              _context.prev = 14;
              _context.t0 = _context["catch"](3);
              _iterator.e(_context.t0);
            case 17:
              _context.prev = 17;
              _iterator.f();
              return _context.finish(17);
            case 20:
              // we _cannot_ accept new rows from now on
              this._rows = null;
              if (!this.startedData) {
                this._writeOpenSheetData();
              }
              this._writeCloseSheetData();
              this._writeAutoFilter();
              this._writeMergeCells();

              // for some reason, Excel can't handle dimensions at the bottom of the file
              // this._writeDimensions();

              this._writeHyperlinks();
              this._writeConditionalFormatting();
              this._writeDataValidations();
              this._writeSheetProtection();
              this._writePageMargins();
              this._writePageSetup();
              this._writeBackground();
              this._writeHeaderFooter();
              this._writeRowBreaks();

              // Legacy Data tag for comments
              this._writeLegacyData();
              this._writeCloseWorksheet();
              // signal end of stream to workbook

              this._sheetCommentsWriter.commit();
              // also commit the hyperlinks if any
              this._sheetRelsWriter.commit();
              _context.next = 40;
              return this.stream.end();
            case 40:
              this.committed = true;
            case 41:
            case "end":
              return _context.stop();
          }
        }, _callee, this, [[3, 14, 17, 20]]);
      }));
      function commit() {
        return _commit.apply(this, arguments);
      }
      return commit;
    }() // return the current dimensions of the writer
  }, {
    key: "dimensions",
    get: function get() {
      return this._dimensions;
    }
  }, {
    key: "views",
    get: function get() {
      return this._views;
    }

    // =========================================================================
    // Columns

    // get the current columns array.
  }, {
    key: "columns",
    get: function get() {
      return this._columns;
    }

    // set the columns from an array of column definitions.
    // Note: any headers defined will overwrite existing values.
    ,
    set: function set(value) {
      var _this = this;
      // calculate max header row count
      this._headerRowCount = value.reduce(function (pv, cv) {
        var headerCount = cv.header && 1 || cv.headers && cv.headers.length || 0;
        return Math.max(pv, headerCount);
      }, 0);

      // construct Column objects
      var count = 1;
      var columns = this._columns = [];
      value.forEach(function (defn) {
        var column = new Column(_this, count++, false);
        columns.push(column);
        column.defn = defn;
      });
    }
  }, {
    key: "getColumnKey",
    value: function getColumnKey(key) {
      return this._keys[key];
    }
  }, {
    key: "setColumnKey",
    value: function setColumnKey(key, value) {
      this._keys[key] = value;
    }
  }, {
    key: "deleteColumnKey",
    value: function deleteColumnKey(key) {
      delete this._keys[key];
    }
  }, {
    key: "eachColumnKey",
    value: function eachColumnKey(f) {
      _.each(this._keys, f);
    }

    // get a single column by col number. If it doesn't exist, it and any gaps before it
    // are created.
  }, {
    key: "getColumn",
    value: function getColumn(c) {
      if (typeof c === 'string') {
        // if it matches a key'd column, return that
        var col = this._keys[c];
        if (col) return col;

        // otherwise, assume letter
        c = colCache.l2n(c);
      }
      if (!this._columns) {
        this._columns = [];
      }
      if (c > this._columns.length) {
        var n = this._columns.length + 1;
        while (n <= c) {
          this._columns.push(new Column(this, n++));
        }
      }
      return this._columns[c - 1];
    }

    // =========================================================================
    // Rows
  }, {
    key: "_nextRow",
    get: function get() {
      return this._rowZero + this._rows.length;
    }

    // iterate over every uncommitted row in the worksheet, including maybe empty rows
  }, {
    key: "eachRow",
    value: function eachRow(options, iteratee) {
      if (!iteratee) {
        iteratee = options;
        options = undefined;
      }
      if (options && options.includeEmpty) {
        var n = this._nextRow;
        for (var i = this._rowZero; i < n; i++) {
          iteratee(this.getRow(i), i);
        }
      } else {
        this._rows.forEach(function (row) {
          if (row.hasValues) {
            iteratee(row, row.number);
          }
        });
      }
    }
  }, {
    key: "_commitRow",
    value: function () {
      var _commitRow2 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee2(cRow) {
        var found, row;
        return _regeneratorRuntime().wrap(function _callee2$(_context2) {
          while (1) switch (_context2.prev = _context2.next) {
            case 0:
              // since rows must be written in order, we commit all rows up till and including cRow
              found = false;
            case 1:
              if (!(this._rows.length && !found)) {
                _context2.next = 11;
                break;
              }
              row = this._rows.shift();
              this._rowZero++;
              if (!row) {
                _context2.next = 9;
                break;
              }
              _context2.next = 7;
              return this._writeRow(row);
            case 7:
              found = row.number === cRow.number;
              this._rowZero = row.number + 1;
            case 9:
              _context2.next = 1;
              break;
            case 11:
            case "end":
              return _context2.stop();
          }
        }, _callee2, this);
      }));
      function _commitRow(_x) {
        return _commitRow2.apply(this, arguments);
      }
      return _commitRow;
    }()
  }, {
    key: "lastRow",
    get: function get() {
      // returns last uncommitted row
      if (this._rows.length) {
        return this._rows[this._rows.length - 1];
      }
      return undefined;
    }

    // find a row (if exists) by row number
  }, {
    key: "findRow",
    value: function findRow(rowNumber) {
      var index = rowNumber - this._rowZero;
      return this._rows[index];
    }
  }, {
    key: "getRow",
    value: function getRow(rowNumber) {
      var index = rowNumber - this._rowZero;

      // may fail if rows have been comitted
      if (index < 0) {
        throw new Error('Out of bounds: this row has been committed');
      }
      var row = this._rows[index];
      if (!row) {
        this._rows[index] = row = new Row(this, rowNumber);
      }
      return row;
    }
  }, {
    key: "addRow",
    value: function addRow(value) {
      var row = new Row(this, this._nextRow);
      this._rows[row.number - this._rowZero] = row;
      row.values = value;
      return row;
    }

    // ================================================================================
    // Cells

    // returns the cell at [r,c] or address given by r. If not found, return undefined
  }, {
    key: "findCell",
    value: function findCell(r, c) {
      var address = colCache.getAddress(r, c);
      var row = this.findRow(address.row);
      return row ? row.findCell(address.column) : undefined;
    }

    // return the cell at [r,c] or address given by r. If not found, create a new one.
  }, {
    key: "getCell",
    value: function getCell(r, c) {
      var address = colCache.getAddress(r, c);
      var row = this.getRow(address.row);
      return row.getCellEx(address);
    }
  }, {
    key: "mergeCells",
    value: function mergeCells() {
      for (var _len = arguments.length, cells = new Array(_len), _key = 0; _key < _len; _key++) {
        cells[_key] = arguments[_key];
      }
      // may fail if rows have been comitted
      var dimensions = new Dimensions(cells);

      // check cells aren't already merged
      this._merges.forEach(function (merge) {
        if (merge.intersects(dimensions)) {
          throw new Error('Cannot merge already merged cells');
        }
      });

      // apply merge
      var master = this.getCell(dimensions.top, dimensions.left);
      for (var i = dimensions.top; i <= dimensions.bottom; i++) {
        for (var j = dimensions.left; j <= dimensions.right; j++) {
          if (i > dimensions.top || j > dimensions.left) {
            this.getCell(i, j).merge(master);
          }
        }
      }

      // index merge
      this._merges.push(dimensions);
    }

    // ===========================================================================
    // Conditional Formatting
  }, {
    key: "addConditionalFormatting",
    value: function addConditionalFormatting(cf) {
      this.conditionalFormatting.push(cf);
    }
  }, {
    key: "removeConditionalFormatting",
    value: function removeConditionalFormatting(filter) {
      if (typeof filter === 'number') {
        this.conditionalFormatting.splice(filter, 1);
      } else if (filter instanceof Function) {
        this.conditionalFormatting = this.conditionalFormatting.filter(filter);
      } else {
        this.conditionalFormatting = [];
      }
    }

    // =========================================================================
  }, {
    key: "addBackgroundImage",
    value: function addBackgroundImage(imageId) {
      this._background = {
        imageId: imageId
      };
    }
  }, {
    key: "getBackgroundImageId",
    value: function getBackgroundImageId() {
      return this._background && this._background.imageId;
    }

    // =========================================================================
    // Worksheet Protection
  }, {
    key: "protect",
    value: function protect(password, options) {
      var _this2 = this;
      // TODO: make this function truly async
      // perhaps marshal to worker thread or something
      return new Promise(function (resolve) {
        _this2.sheetProtection = {
          sheet: true
        };
        if (options && 'spinCount' in options) {
          // force spinCount to be integer >= 0
          options.spinCount = Number.isFinite(options.spinCount) ? Math.round(Math.max(0, options.spinCount)) : 100000;
        }
        if (password) {
          _this2.sheetProtection.algorithmName = 'SHA-512';
          _this2.sheetProtection.saltValue = Encryptor.randomBytes(16).toString('base64');
          _this2.sheetProtection.spinCount = options && 'spinCount' in options ? options.spinCount : 100000; // allow user specified spinCount
          _this2.sheetProtection.hashValue = Encryptor.convertPasswordToHash(password, 'SHA512', _this2.sheetProtection.saltValue, _this2.sheetProtection.spinCount);
        }
        if (options) {
          _this2.sheetProtection = Object.assign(_this2.sheetProtection, options);
          if (!password && 'spinCount' in options) {
            delete _this2.sheetProtection.spinCount;
          }
        }
        resolve();
      });
    }
  }, {
    key: "unprotect",
    value: function unprotect() {
      this.sheetProtection = null;
    }

    // ================================================================================
  }, {
    key: "_write",
    value: function _write(text) {
      xmlBuffer.reset();
      xmlBuffer.addText(text);
      this.stream.write(xmlBuffer);
    }
  }, {
    key: "_writeSheetProperties",
    value: function _writeSheetProperties(xmlBuf, properties, pageSetup) {
      var sheetPropertiesModel = {
        outlineProperties: properties && properties.outlineProperties,
        tabColor: properties && properties.tabColor,
        pageSetup: pageSetup && pageSetup.fitToPage ? {
          fitToPage: pageSetup.fitToPage
        } : undefined
      };
      xmlBuf.addText(xform.sheetProperties.toXml(sheetPropertiesModel));
    }
  }, {
    key: "_writeSheetFormatProperties",
    value: function _writeSheetFormatProperties(xmlBuf, properties) {
      var sheetFormatPropertiesModel = properties ? {
        defaultRowHeight: properties.defaultRowHeight,
        dyDescent: properties.dyDescent,
        outlineLevelCol: properties.outlineLevelCol,
        outlineLevelRow: properties.outlineLevelRow
      } : undefined;
      if (properties.defaultColWidth) {
        sheetFormatPropertiesModel.defaultColWidth = properties.defaultColWidth;
      }
      xmlBuf.addText(xform.sheetFormatProperties.toXml(sheetFormatPropertiesModel));
    }
  }, {
    key: "_writeOpenWorksheet",
    value: function _writeOpenWorksheet() {
      xmlBuffer.reset();
      xmlBuffer.addText('<?xml version="1.0" encoding="UTF-8" standalone="yes"?>');
      xmlBuffer.addText('<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main"' + ' xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships"' + ' xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"' + ' mc:Ignorable="x14ac"' + ' xmlns:x14ac="http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac">');
      this._writeSheetProperties(xmlBuffer, this.properties, this.pageSetup);
      xmlBuffer.addText(xform.sheetViews.toXml(this.views));
      this._writeSheetFormatProperties(xmlBuffer, this.properties);
      this.stream.write(xmlBuffer);
    }
  }, {
    key: "_writeColumns",
    value: function _writeColumns() {
      var cols = Column.toModel(this.columns);
      if (cols) {
        xform.columns.prepare(cols, {
          styles: this._workbook.styles
        });
        this.stream.write(xform.columns.toXml(cols));
      }
    }
  }, {
    key: "_writeOpenSheetData",
    value: function _writeOpenSheetData() {
      this._write('<sheetData>');
    }
  }, {
    key: "_writeRow",
    value: function () {
      var _writeRow2 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee3(row) {
        var model, options;
        return _regeneratorRuntime().wrap(function _callee3$(_context3) {
          while (1) switch (_context3.prev = _context3.next) {
            case 0:
              if (!this.startedData) {
                this._writeColumns();
                this._writeOpenSheetData();
                this.startedData = true;
              }
              if (!(row.hasValues || row.height)) {
                _context3.next = 8;
                break;
              }
              model = row.model;
              options = {
                styles: this._workbook.styles,
                sharedStrings: this.useSharedStrings ? this._workbook.sharedStrings : undefined,
                hyperlinks: this._sheetRelsWriter.hyperlinksProxy,
                merges: this._merges,
                formulae: this._formulae,
                siFormulae: this._siFormulae,
                comments: []
              };
              xform.row.prepare(model, options);
              _context3.next = 7;
              return this.stream.write(xform.row.toXml(model));
            case 7:
              if (options.comments.length) {
                this.hasComments = true;
                this._sheetCommentsWriter.addComments(options.comments);
              }
            case 8:
            case "end":
              return _context3.stop();
          }
        }, _callee3, this);
      }));
      function _writeRow(_x2) {
        return _writeRow2.apply(this, arguments);
      }
      return _writeRow;
    }()
  }, {
    key: "_writeCloseSheetData",
    value: function _writeCloseSheetData() {
      this._write('</sheetData>');
    }
  }, {
    key: "_writeMergeCells",
    value: function _writeMergeCells() {
      if (this._merges.length) {
        xmlBuffer.reset();
        xmlBuffer.addText("<mergeCells count=\"".concat(this._merges.length, "\">"));
        this._merges.forEach(function (merge) {
          xmlBuffer.addText("<mergeCell ref=\"".concat(merge, "\"/>"));
        });
        xmlBuffer.addText('</mergeCells>');
        this.stream.write(xmlBuffer);
      }
    }
  }, {
    key: "_writeHyperlinks",
    value: function _writeHyperlinks() {
      // eslint-disable-next-line no-underscore-dangle
      this.stream.write(xform.hyperlinks.toXml(this._sheetRelsWriter._hyperlinks));
    }
  }, {
    key: "_writeConditionalFormatting",
    value: function _writeConditionalFormatting() {
      var options = {
        styles: this._workbook.styles
      };
      xform.conditionalFormattings.prepare(this.conditionalFormatting, options);
      this.stream.write(xform.conditionalFormattings.toXml(this.conditionalFormatting));
    }
  }, {
    key: "_writeRowBreaks",
    value: function _writeRowBreaks() {
      this.stream.write(xform.rowBreaks.toXml(this.rowBreaks));
    }
  }, {
    key: "_writeDataValidations",
    value: function _writeDataValidations() {
      this.stream.write(xform.dataValidations.toXml(this.dataValidations.model));
    }
  }, {
    key: "_writeSheetProtection",
    value: function _writeSheetProtection() {
      this.stream.write(xform.sheetProtection.toXml(this.sheetProtection));
    }
  }, {
    key: "_writePageMargins",
    value: function _writePageMargins() {
      this.stream.write(xform.pageMargins.toXml(this.pageSetup.margins));
    }
  }, {
    key: "_writePageSetup",
    value: function _writePageSetup() {
      this.stream.write(xform.pageSeteup.toXml(this.pageSetup));
    }
  }, {
    key: "_writeHeaderFooter",
    value: function _writeHeaderFooter() {
      this.stream.write(xform.headerFooter.toXml(this.headerFooter));
    }
  }, {
    key: "_writeAutoFilter",
    value: function _writeAutoFilter() {
      this.stream.write(xform.autoFilter.toXml(this.autoFilter));
    }
  }, {
    key: "_writeBackground",
    value: function _writeBackground() {
      if (this._background) {
        if (this._background.imageId !== undefined) {
          var image = this._workbook.getImage(this._background.imageId);
          var pictureId = this._sheetRelsWriter.addMedia({
            Target: "../media/".concat(image.name),
            Type: RelType.Image
          });
          this._background = _objectSpread(_objectSpread({}, this._background), {}, {
            rId: pictureId
          });
        }
        this.stream.write(xform.picture.toXml({
          rId: this._background.rId
        }));
      }
    }
  }, {
    key: "_writeLegacyData",
    value: function _writeLegacyData() {
      if (this.hasComments) {
        xmlBuffer.reset();
        xmlBuffer.addText("<legacyDrawing r:id=\"".concat(this._sheetCommentsWriter.vmlRelId, "\"/>"));
        this.stream.write(xmlBuffer);
      }
    }
  }, {
    key: "_writeDimensions",
    value: function _writeDimensions() {
      // for some reason, Excel can't handle dimensions at the bottom of the file
      // and we don't know the dimensions until the commit, so don't write them.
      // this._write('<dimension ref="' + this._dimensions + '"/>');
    }
  }, {
    key: "_writeCloseWorksheet",
    value: function _writeCloseWorksheet() {
      this._write('</worksheet>');
    }
  }]);
  return WorksheetWriter;
}();
module.exports = WorksheetWriter;
//# sourceMappingURL=worksheet-writer.js.map