MapGIS Client for JavaScript API

import { defaultValue } from '../../../util'
import { Zondy } from '../../../base'
import { LayerType, LoadStatus } from '../../../base/enum'
import OverlayLayer from './OverlayLayer'
/**
 * Echarts图层
 * @class EchartsLayer
 * @moduleEX LayerModule
 * @extends OverlayLayer
 * @param {Object} options 构造参数
 * @param {Object} [options.echartsOptions] echarts的构造参数
 */
class EchartsLayer extends OverlayLayer {
  constructor(options) {
    super(options)
    options = defaultValue(options, {})

    /**
     * echarts的构造参数
     * @member {Object} EchartsLayer.prototype.echartsOptions
     */
    this.echartsOptions = defaultValue(options.echartsOptions, {})
    /**
     * 图层类型
     * @member {String} EchartsLayer.prototype.type
     */
    this.type = LayerType.echarts
  }

  /**
   * 从igs获取图层信息
   */
  load() {
    return new Promise((resolve) => {
      this.loadStatus = LoadStatus.loaded
      this.loaded = true
      resolve(this)
    })
  }

  /**
   * 将图层转为json对象
   * @return {Object} josn对象
   * */
  toJSON() {
    const json = super.toJSON()
    json.echartsOptions = this.echartsOptions
    return JSON.parse(JSON.stringify(json))
  }

  /**
   * 克隆并返回一个新图层
   * @return {EchartsLayer} 新的图层对象
   * */
  clone() {
    return new EchartsLayer(this.toJSON())
  }
}

Zondy.Layer.EchartsLayer = EchartsLayer
export default EchartsLayer