text: 'use strict'
  /**
   任务名称：2634/工作流前端迁移到施工系统作为流程管理模块
   开发人员：李建敏
   日期：2020-3月-17日
   任务类型：2、复制修改代码 （移动位置）
   **/
  var getBusinessObject = require('bpmn-js/lib/util/ModelUtil').getBusinessObject,
    getExtensionElements = require('./ExtensionElementsHelper').getExtensionElements
  
  var FormHelper = {}
  
  module.exports = FormHelper
  
  /**
   * Return form data from business object or undefined if none exist
   *
   * @param  {djs.model.Base} element
   *
   * @return {ModdleElement|undefined} formData
   *
   * 此方法废弃
   *
   */
  FormHelper.getFormData = function (element) {
    /* var bo = getBusinessObject(element);
  
    var formFields = getExtensionElements(bo, 'activiti:FormProperty');
  
    var formData = {}
  
    if (typeof formData !== 'undefined') {
      return formData[0];
    }*/
    return {}
  }
  
  /**
   * Return all form fields existing in the business object, and
   * an empty array if none exist.
   *
   * @param  {djs.model.Base} element
   *
   * @return {Array} a list of form field objects
   */
  FormHelper.getFormFields = function (element) {
    /**直接获取 ExtensionElements的 activiti:FormProperty元素*/
    var bo = getBusinessObject(element)
  
    var formFields = getExtensionElements(bo, 'activiti:FormProperty')
  
    return formFields || []
  }
  
  /**
   * Get a form field from the business object at given index
   *
   * @param {djs.model.Base} element
   * @param {number} idx
   *
   * @return {ModdleElement} the form field
   */
  FormHelper.getFormField = function (element, idx) {
    var formFields = this.getFormFields(element)
  
    return formFields[idx]
  }
  
  /**
   * Get all constraints for a specific form field from the business object
   *
   * @param  {ModdleElement} formField
   *
   * @return {Array<ModdleElement>} a list of constraint objects
   */
  FormHelper.getConstraints = function (formField) {
    if (formField && formField.validation && formField.validation.constraints) {
      return formField.validation.constraints
    }
    return []
  }
  
  /**
   * Get all activiti:value objects for a specific form field from the business object
   *
   * @param  {ModdleElement} formField
   *
   * @return {Array<ModdleElement>} a list of activiti:value objects
   */
  FormHelper.getEnumValues = function (formField) {
    if (formField && formField.values) {
      return formField.values
    }
    return []
  }
  