@protobi/exceljs
Version:
Excel Workbook Manager - Temporary fork with pivot table enhancements and bug fixes pending upstream merge
317 lines (309 loc) • 20.3 kB
JavaScript
;
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var parseSax = require('../../utils/parse-sax');
var XmlStream = require('../../utils/xml-stream');
/* 'virtual' methods used as a form of documentation */
/* eslint-disable class-methods-use-this */
// Base class for Xforms
var BaseXform = /*#__PURE__*/function () {
function BaseXform() {
_classCallCheck(this, BaseXform);
}
_createClass(BaseXform, [{
key: "prepare",
value:
// constructor(/* model, name */) {}
// ============================================================
// Virtual Interface
function prepare(/* model, options */
) {
// optional preparation (mutation) of model so it is ready for write
}
}, {
key: "render",
value: function render(/* xmlStream, model */
) {
// convert model to xml
}
}, {
key: "parseOpen",
value: function parseOpen(node) {
// XML node opened
}
}, {
key: "parseText",
value: function parseText(text) {
// chunk of text encountered for current node
}
}, {
key: "parseClose",
value: function parseClose(name) {
// XML node closed
}
}, {
key: "reconcile",
value: function reconcile(model, options) {
// optional post-parse step (opposite to prepare)
}
// ============================================================
}, {
key: "reset",
value: function reset() {
// to make sure parses don't bleed to next iteration
this.model = null;
// if we have a map - reset them too
if (this.map) {
Object.values(this.map).forEach(function (xform) {
if (xform instanceof BaseXform) {
xform.reset();
} else if (xform.xform) {
xform.xform.reset();
}
});
}
}
}, {
key: "mergeModel",
value: function mergeModel(obj) {
// set obj's props to this.model
this.model = Object.assign(this.model || {}, obj);
}
}, {
key: "parse",
value: function () {
var _parse = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee(saxParser) {
var _iteratorAbruptCompletion, _didIteratorError, _iteratorError, _iterator, _step, events, _iterator2, _step2, _step2$value, eventType, value;
return _regeneratorRuntime().wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
_iteratorAbruptCompletion = false;
_didIteratorError = false;
_context.prev = 2;
_iterator = _asyncIterator(saxParser);
case 4:
_context.next = 6;
return _iterator.next();
case 6:
if (!(_iteratorAbruptCompletion = !(_step = _context.sent).done)) {
_context.next = 37;
break;
}
events = _step.value;
_iterator2 = _createForOfIteratorHelper(events);
_context.prev = 9;
_iterator2.s();
case 11:
if ((_step2 = _iterator2.n()).done) {
_context.next = 26;
break;
}
_step2$value = _step2.value, eventType = _step2$value.eventType, value = _step2$value.value;
if (!(eventType === 'opentag')) {
_context.next = 17;
break;
}
this.parseOpen(value);
_context.next = 24;
break;
case 17:
if (!(eventType === 'text')) {
_context.next = 21;
break;
}
this.parseText(value);
_context.next = 24;
break;
case 21:
if (!(eventType === 'closetag')) {
_context.next = 24;
break;
}
if (this.parseClose(value.name)) {
_context.next = 24;
break;
}
return _context.abrupt("return", this.model);
case 24:
_context.next = 11;
break;
case 26:
_context.next = 31;
break;
case 28:
_context.prev = 28;
_context.t0 = _context["catch"](9);
_iterator2.e(_context.t0);
case 31:
_context.prev = 31;
_iterator2.f();
return _context.finish(31);
case 34:
_iteratorAbruptCompletion = false;
_context.next = 4;
break;
case 37:
_context.next = 43;
break;
case 39:
_context.prev = 39;
_context.t1 = _context["catch"](2);
_didIteratorError = true;
_iteratorError = _context.t1;
case 43:
_context.prev = 43;
_context.prev = 44;
if (!(_iteratorAbruptCompletion && _iterator.return != null)) {
_context.next = 48;
break;
}
_context.next = 48;
return _iterator.return();
case 48:
_context.prev = 48;
if (!_didIteratorError) {
_context.next = 51;
break;
}
throw _iteratorError;
case 51:
return _context.finish(48);
case 52:
return _context.finish(43);
case 53:
return _context.abrupt("return", this.model);
case 54:
case "end":
return _context.stop();
}
}, _callee, this, [[2, 39, 43, 53], [9, 28, 31, 34], [44,, 48, 52]]);
}));
function parse(_x) {
return _parse.apply(this, arguments);
}
return parse;
}()
}, {
key: "parseStream",
value: function () {
var _parseStream = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee2(stream) {
return _regeneratorRuntime().wrap(function _callee2$(_context2) {
while (1) switch (_context2.prev = _context2.next) {
case 0:
return _context2.abrupt("return", this.parse(parseSax(stream)));
case 1:
case "end":
return _context2.stop();
}
}, _callee2, this);
}));
function parseStream(_x2) {
return _parseStream.apply(this, arguments);
}
return parseStream;
}()
}, {
key: "xml",
get: function get() {
// convenience function to get the xml of this.model
// useful for manager types that are built during the prepare phase
return this.toXml(this.model);
}
}, {
key: "toXml",
value: function toXml(model) {
var xmlStream = new XmlStream();
this.render(xmlStream, model);
return xmlStream.xml;
}
// ============================================================
// Useful Utilities
}], [{
key: "toAttribute",
value: function toAttribute(value, dflt) {
var always = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
if (value === undefined) {
if (always) {
return dflt;
}
} else if (always || value !== dflt) {
return value.toString();
}
return undefined;
}
}, {
key: "toStringAttribute",
value: function toStringAttribute(value, dflt) {
var always = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
return BaseXform.toAttribute(value, dflt, always);
}
}, {
key: "toStringValue",
value: function toStringValue(attr, dflt) {
return attr === undefined ? dflt : attr;
}
}, {
key: "toBoolAttribute",
value: function toBoolAttribute(value, dflt) {
var always = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
if (value === undefined) {
if (always) {
return dflt;
}
} else if (always || value !== dflt) {
return value ? '1' : '0';
}
return undefined;
}
}, {
key: "toBoolValue",
value: function toBoolValue(attr, dflt) {
return attr === undefined ? dflt : attr === '1';
}
}, {
key: "toIntAttribute",
value: function toIntAttribute(value, dflt) {
var always = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
return BaseXform.toAttribute(value, dflt, always);
}
}, {
key: "toIntValue",
value: function toIntValue(attr, dflt) {
return attr === undefined ? dflt : parseInt(attr, 10);
}
}, {
key: "toFloatAttribute",
value: function toFloatAttribute(value, dflt) {
var always = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
return BaseXform.toAttribute(value, dflt, always);
}
}, {
key: "toFloatValue",
value: function toFloatValue(attr, dflt) {
return attr === undefined ? dflt : parseFloat(attr);
}
}]);
return BaseXform;
}();
module.exports = BaseXform;
//# sourceMappingURL=base-xform.js.map