@beisen-phoenix/lookup/src/util.js

---

import fetch from '@beisen/platform-fetch';
import isEqual from 'lodash/isEqual';
import isEmpty from 'lodash/isEmpty';


export function callFetch(url, params, succCallBack, errorCallBack) {
    fetch(url, {
        method: 'POST',
        params: params,
    }).then(succCallBack, errorCallBack)
}

//判断props数据是否改变,无变化返回null,有变化返回json对象
export function getUpdateData (data, now, pre) {
    let ret = {};
    (data || []).map(n => {
        if (!isEqual(now[n], pre[n])){
            ret[n] = now[n]
        }
    })

    return isEmpty(ret) ? null : ret
}


//按弹层高度计算规则，计算弹层的高度
export const calculateModalHeight = (height, diff) => {
    return (height || window.innerHeight) * 0.9 - diff
}

//判断弹窗是否出现滚动条,并返回高度
export const resetCalculateHeight = (className, adjustValue = 0) => {
    //此判断仅限于lookup嵌入到Modal内的计算
    let mainContainer = document.querySelector(className)
    let mainContainerDiv = mainContainer && mainContainer.parentElement || null
    let searchFormDiv = mainContainer.querySelector('.phoenix-search-form')
    if (mainContainerDiv){
        let scrollY = mainContainerDiv.clientHeight - searchFormDiv.clientHeight - adjustValue
        if (mainContainerDiv.scrollHeight >= mainContainerDiv.clientHeight) {
            return {scrollY: scrollY}
        }
    }
}

// 对象属性为undefined时返回空
export const getValueUseKey = (obj,key) => {
    return typeof key === 'undefined' ? '' : obj[key];
}