@form-creator1/element-ui/utils/lib/util.js

this is a fc-element-ui for form-creator

import { v4 as uuidv4 } from 'uuid';
/**
 * 获取各种参数
 * @param {String} name 
 * @param {String} url 
 */
export const getParameter = (name,url) =>{
  if (!url) url = window.location.href;
  name = name.replace(/[\[\]]/g, "\\$&");
  let regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
      results = regex.exec(url);
  if (!results) return undefined;
  if (!results[2]) return undefined;
  return decodeURIComponent(results[2].replace(/\+/g, " "));
}

/**
 * 生成唯一ID
 */
export function generateId(){
  return uuidv4().replaceAll('-','')
}

/**
* 对象深克隆
* @param {*} obj
* @returns
*/
export function deepClone(obj){
  let result;
  if(typeof obj === 'object') {
      if(Array.isArray(obj)) {
      result = [];
      for(let i in obj) {
          result.push(deepClone(obj[i]))
      }
      } else if (obj === null){
      result = null
      } else if (obj.constructor === RegExp){
      result = obj
      } else {
      result = {};
      for(let i in obj) {
          result[i] = deepClone(obj[i])
      }
      }
  } else {
      result = obj;
  }
  return result;
}

/**
 * 根据id查找相应元素
 * @param {*} id 
 * @param {*} widgetList 
 * @returns 
 */
export function getWidgetById(id, widgetList) {
  let stack = [...widgetList];
  let target = null;
  while (stack.length) {
    let node = stack.pop();
    if (node.id === id) {
      target = node;
    }
    if (target !== null) {
      stack = [];
    }
    if (target === null && ['fcGrid', 'fcTabs', 'fcCard', 'fcDialog'].indexOf(node.type) > -1) {
      node.options.advanced.cols.forEach((c) => {
        stack.push(...c.widgetList);
      });
    }
  }
  return target;
}

/**
 * 根据参数key查找相应元素
 * @param {*} key 
 * @param {*} widgetList 
 * @returns 
 */
 export function getWidgetsByKey(ruleFormKey, widgetList) {
  let stack = [...widgetList];
  let target = [];
  while (stack.length) {
    let node = stack.pop();
    if (node.ruleFormKey === ruleFormKey) {
      target.push(node);
    }
    if (['fcGrid', 'fcTabs', 'fcCard', 'fcDialog'].indexOf(node.type) > -1) {
      node.options.advanced.cols.forEach((c) => {
        stack.push(...c.widgetList);
      });
    }
  }
  return target.reverse();
}

/**
 * 根据元素id查找父节点
 * @param {*} currentWidget 
 * @param {*} widgetList 
 * @returns 
 */
export function getParentById(currentWidget, widgetList) {
  let stack = [...widgetList];
  let target = null;
  while (stack.length) {
    let node = stack.pop();
    if (['fcGrid', 'fcTabs', 'fcCard', 'fcDialog'].indexOf(node.type) > -1) {
      node.options.advanced.cols.forEach((c) => {
        stack.push(...c.widgetList);
        c.widgetList.forEach(widget => {
          if(widget.id === currentWidget.id) {
            target = node
          }
        })
      });
    }
  }
  return target;
}

/**
 * 根据customAttrName查找相应元素
 * @param {*} attr  customAttrName
 * @param {*} stage 
 * @returns 
 */
export function getElementsByAttr(attr, stage) {
  let stack = [stage];
  let target = [];
  while (stack.length) {
    let node = stack.pop();
    if (node.customAttrName === attr) {
      target.push(node);
    }
    stack.push(...(node.children || []))
  }
  return target.reverse();
}

/**
 * 生成uuid
 * @returns
 */
 export const getUUID = () => {
  function S4() {
    return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1)
  }
  return (S4() + S4() + S4() + S4() + S4() + S4() + S4() + S4())
}