@protobi/exceljs/dist/es5/xlsx/xform/static-xform.js

Excel Workbook Manager - Temporary fork with pivot table enhancements and bug fixes pending upstream merge

"use strict";

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _inherits(t, e) { if ("function" != typeof e && null !== e) throw new TypeError("Super expression must either be null or a function"); t.prototype = Object.create(e && e.prototype, { constructor: { value: t, writable: !0, configurable: !0 } }), Object.defineProperty(t, "prototype", { writable: !1 }), e && _setPrototypeOf(t, e); }
function _setPrototypeOf(t, e) { return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) { return t.__proto__ = e, t; }, _setPrototypeOf(t, e); }
function _createSuper(t) { var r = _isNativeReflectConstruct(); return function () { var e, o = _getPrototypeOf(t); if (r) { var s = _getPrototypeOf(this).constructor; e = Reflect.construct(o, arguments, s); } else e = o.apply(this, arguments); return _possibleConstructorReturn(this, e); }; }
function _possibleConstructorReturn(t, e) { if (e && ("object" == _typeof(e) || "function" == typeof e)) return e; if (void 0 !== e) throw new TypeError("Derived constructors may only return object or undefined"); return _assertThisInitialized(t); }
function _assertThisInitialized(e) { if (void 0 === e) throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); return e; }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _getPrototypeOf(t) { return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) { return t.__proto__ || Object.getPrototypeOf(t); }, _getPrototypeOf(t); }
var BaseXform = require('./base-xform');
var XmlStream = require('../../utils/xml-stream');

// const model = {
//   tag: 'name',
//   $: {attr: 'value'},
//   c: [
//     { tag: 'child' }
//   ],
//   t: 'some text'
// };

function build(xmlStream, model) {
  xmlStream.openNode(model.tag, model.$);
  if (model.c) {
    model.c.forEach(function (child) {
      build(xmlStream, child);
    });
  }
  if (model.t) {
    xmlStream.writeText(model.t);
  }
  xmlStream.closeNode();
}
var StaticXform = /*#__PURE__*/function (_BaseXform) {
  _inherits(StaticXform, _BaseXform);
  var _super = _createSuper(StaticXform);
  function StaticXform(model) {
    var _this;
    _classCallCheck(this, StaticXform);
    _this = _super.call(this);

    // This class is an optimisation for static (unimportant and unchanging) xml
    // It is stateless - apart from its static model and so can be used as a singleton
    // Being stateless - it will only track entry to and exit from it's root xml tag during parsing and nothing else
    // Known issues:
    //    since stateless - parseOpen always returns true. Parent xform must know when to start using this xform
    //    if the root tag is recursive, the parsing will behave unpredictably
    _this._model = model;
    return _this;
  }
  _createClass(StaticXform, [{
    key: "render",
    value: function render(xmlStream) {
      if (!this._xml) {
        var stream = new XmlStream();
        build(stream, this._model);
        this._xml = stream.xml;
      }
      xmlStream.writeXml(this._xml);
    }
  }, {
    key: "parseOpen",
    value: function parseOpen() {
      return true;
    }
  }, {
    key: "parseText",
    value: function parseText() {}
  }, {
    key: "parseClose",
    value: function parseClose(name) {
      switch (name) {
        case this._model.tag:
          return false;
        default:
          return true;
      }
    }
  }]);
  return StaticXform;
}(BaseXform);
module.exports = StaticXform;
//# sourceMappingURL=static-xform.js.map