@difftim/excelize/lib/xlsx/xform/chart/data/c-ser-xform.js

Excel Workbook Manager - Read and Write xlsx and csv Files.

const BaseXform = require('../../base-xform');
const CTxChartXform = require('./c-tx-xform');
const CCatXform = require('./c-cat-xform');
const CValXform = require('./c-val-xform');

class CSerXform extends BaseXform {
  constructor() {
    super();

    this.map = {
      'c:cat': new CCatXform(),
      'c:tx': new CTxChartXform(),
      'c:val': new CValXform(),
    };
  }

  get tag() {
    return 'c:ser';
  }

  render(xmlStream, model) {
    xmlStream.openNode(this.tag);
    this.map['c:tx'].render(xmlStream, model);
    this.map['c:cat'].render(xmlStream, model);
    this.map['c:val'].render(xmlStream, model);
    xmlStream.closeNode();
  }

  parseOpen(node) {
    if (this.parser) {
      this.parser.parseOpen(node);
      return true;
    }

    switch (node.name) {
      case this.tag:
        // this.reset(); // series 可能有多个
        break;

      default:
        this.parser = this.map[node.name];
        if (this.parser) {
          this.parser.parseOpen(node);
        }
        break;
    }
    return true;
  }

  parseText(text) {
    if (this.parser) {
      this.parser.parseText(text);
    }
  }

  parseClose(name) {
    if (this.parser) {
      if (!this.parser.parseClose(name)) {
        this.parser = undefined;
      }
      return true;
    }
    switch (name) {
      case this.tag: {
        const _model = this.model || [];
        const _item = {
          series_name: this.map['c:tx'].model,
          category: this.map['c:cat'].model,
          series_val: this.map['c:val'].model,
        };
        _model.push(_item);
        this.model = _model;
        return false;
      }
      default:
        return true;
    }
  }
}

module.exports = CSerXform;