697 lines
18 KiB
JavaScript
697 lines
18 KiB
JavaScript
/* eslint-disable no-array-constructor */
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/**
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* Created by PanJiaChen on 16/11/18.
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*/
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import { compress } from 'image-conversion'
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/**
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* Parse the time to string
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* @param {(Object|string|number)} time
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* @param {string} cFormat
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* @returns {string}
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*/
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export function parseTime(time, cFormat) {
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if (time === null || time === undefined || time === '') {
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return ''
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}
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if (arguments.length === 0) {
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return null
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}
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const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
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let date
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if (typeof time === 'object') {
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date = time
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} else {
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if (typeof time === 'string' && /^[0-9]+$/.test(time)) {
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time = parseInt(time)
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}
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if (typeof time === 'number' && time.toString().length === 10) {
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time = time * 1000
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}
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date = new Date(time)
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}
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const formatObj = {
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y: date.getFullYear(),
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m: date.getMonth() + 1,
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d: date.getDate(),
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h: date.getHours(),
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i: date.getMinutes(),
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s: date.getSeconds(),
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a: date.getDay()
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}
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const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
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let value = formatObj[key]
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// Note: getDay() returns 0 on Sunday
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if (key === 'a') {
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return ['日', '一', '二', '三', '四', '五', '六'][value]
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}
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if (result.length > 0 && value < 10) {
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value = '0' + value
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}
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return value || 0
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})
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return time_str
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}
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/**
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* Parse the time to string
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* @param {(Object|string|number)} time
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* @param {string} cFormat
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* @returns {string}
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*/
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export function parseDate(time, cFormat) {
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if (time === null || time === undefined) {
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return ''
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}
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if (arguments.length === 0) {
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return null
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}
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const format = cFormat || '{y}-{m}-{d}'
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let date
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if (typeof time === 'object') {
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date = time
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} else {
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if (typeof time === 'string' && /^[0-9]+$/.test(time)) {
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time = parseInt(time)
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}
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if (typeof time === 'number' && time.toString().length === 10) {
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time = time * 1000
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}
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date = new Date(time)
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}
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const formatObj = {
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y: date.getFullYear(),
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m: date.getMonth() + 1,
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d: date.getDate(),
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a: date.getDay()
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}
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const time_str = format.replace(/{(y|m|d|a)+}/g, (result, key) => {
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let value = formatObj[key]
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// Note: getDay() returns 0 on Sunday
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if (key === 'a') {
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return ['日', '一', '二', '三', '四', '五', '六'][value]
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}
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if (result.length > 0 && value < 10) {
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value = '0' + value
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}
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return value || 0
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})
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return time_str
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}
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export function makeMap(str, expectsLowerCase) {
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const map = Object.create(null)
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const list = str.split(',')
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for (let i = 0; i < list.length; i++) {
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map[list[i]] = true
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}
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return expectsLowerCase ? val => map[val.toLowerCase()] : val => map[val]
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}
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/**
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* @param {number} time
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* @param {string} option
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* @returns {string}
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*/
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export function formatTime(time, option) {
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if (('' + time).length === 10) {
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time = parseInt(time) * 1000
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} else {
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time = +time
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}
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const d = new Date(time)
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const now = Date.now()
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const diff = (now - d) / 1000
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if (diff < 30) {
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return '刚刚'
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} else if (diff < 3600) {
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// less 1 hour
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return Math.ceil(diff / 60) + '分钟前'
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} else if (diff < 3600 * 24) {
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return Math.ceil(diff / 3600) + '小时前'
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} else if (diff < 3600 * 24 * 2) {
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return '1天前'
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}
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if (option) {
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return parseTime(time, option)
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} else {
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return d.getMonth() + 1 + '月' + d.getDate() + '日' + d.getHours() + '时' + d.getMinutes() + '分'
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}
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}
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/**
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* @param {string} url
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* @returns {Object}
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*/
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export function getQueryObject(url) {
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url = url == null ? window.location.href : url
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const search = url.substring(url.lastIndexOf('?') + 1)
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const obj = {}
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const reg = /([^?&=]+)=([^?&=]*)/g
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search.replace(reg, (rs, $1, $2) => {
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const name = decodeURIComponent($1)
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let val = decodeURIComponent($2)
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val = String(val)
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obj[name] = val
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return rs
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})
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return obj
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}
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/**
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* @param {string} input value
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* @returns {number} output value
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*/
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export function byteLength(str) {
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// returns the byte length of an utf8 string
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let s = str.length
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for (var i = str.length - 1; i >= 0; i--) {
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const code = str.charCodeAt(i)
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if (code > 0x7f && code <= 0x7ff) s++
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else if (code > 0x7ff && code <= 0xffff) s += 2
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if (code >= 0xdc00 && code <= 0xdfff) i--
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}
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return s
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}
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/**
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* @param {Array} actual
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* @returns {Array}
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*/
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export function cleanArray(actual) {
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const newArray = []
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for (let i = 0; i < actual.length; i++) {
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if (actual[i]) {
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newArray.push(actual[i])
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}
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}
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return newArray
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}
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/**
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* @param {Object} json
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* @returns {Array}
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*/
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export function param(json) {
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if (!json) return ''
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return cleanArray(
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Object.keys(json).map(key => {
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if (json[key] === undefined) return ''
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return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
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})
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).join('&')
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}
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/**
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* @param {string} url
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* @returns {Object}
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*/
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export function param2Obj(url) {
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const search = url.split('?')[1]
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if (!search) {
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return {}
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}
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return JSON.parse(
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'{"' +
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decodeURIComponent(search)
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.replace(/"/g, '\\"')
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.replace(/&/g, '","')
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.replace(/=/g, '":"')
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.replace(/\+/g, ' ') +
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'"}'
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)
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}
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/**
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* @param {string} val
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* @returns {string}
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*/
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export function html2Text(val) {
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const div = document.createElement('div')
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div.innerHTML = val
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return div.textContent || div.innerText
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}
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/**
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* Merges two objects, giving the last one precedence
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* @param {Object} target
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* @param {(Object|Array)} source
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* @returns {Object}
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*/
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export function objectMerge(target, source) {
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if (typeof target !== 'object') {
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target = {}
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}
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if (Array.isArray(source)) {
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return source.slice()
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}
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Object.keys(source).forEach(property => {
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const sourceProperty = source[property]
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if (typeof sourceProperty === 'object') {
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target[property] = objectMerge(target[property], sourceProperty)
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} else {
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target[property] = sourceProperty
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}
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})
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return target
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}
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/**
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* @param {HTMLElement} element
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* @param {string} className
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*/
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export function toggleClass(element, className) {
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if (!element || !className) {
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return
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}
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let classString = element.className
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const nameIndex = classString.indexOf(className)
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if (nameIndex === -1) {
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classString += '' + className
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} else {
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classString = classString.substr(0, nameIndex) + classString.substr(nameIndex + className.length)
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}
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element.className = classString
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}
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/**
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* @param {string} type
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* @returns {Date}
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*/
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export function getTime(type) {
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if (type === 'start') {
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return new Date().getTime() - 3600 * 1000 * 24 * 90
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} else {
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return new Date(new Date().toDateString())
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}
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}
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/**
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* @param {Function} func
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* @param {number} wait
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* @param {boolean} immediate
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* @return {*}
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*/
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export function debounce(func, wait, immediate) {
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let timeout, args, context, timestamp, result
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const later = function() {
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// 据上一次触发时间间隔
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const last = +new Date() - timestamp
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// 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
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if (last < wait && last > 0) {
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timeout = setTimeout(later, wait - last)
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} else {
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timeout = null
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// 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
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if (!immediate) {
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result = func.apply(context, args)
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if (!timeout) context = args = null
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}
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}
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}
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return function(...args) {
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context = this
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timestamp = +new Date()
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const callNow = immediate && !timeout
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// 如果延时不存在，重新设定延时
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if (!timeout) timeout = setTimeout(later, wait)
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if (callNow) {
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result = func.apply(context, args)
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context = args = null
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}
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return result
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}
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}
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/**
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* This is just a simple version of deep copy
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* Has a lot of edge cases bug
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* If you want to use a perfect deep copy, use lodash's _.cloneDeep
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* @param {Object} source
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* @returns {Object}
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*/
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export function deepClone(source) {
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if (!source && typeof source !== 'object') {
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throw new Error('error arguments', 'deepClone')
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}
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const targetObj = source.constructor === Array ? [] : {}
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Object.keys(source).forEach(keys => {
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if (source[keys] && typeof source[keys] === 'object') {
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targetObj[keys] = deepClone(source[keys])
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} else {
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targetObj[keys] = source[keys]
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}
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})
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return targetObj
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}
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/**
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* @param {Array} arr
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* @returns {Array}
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*/
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export function uniqueArr(arr) {
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return Array.from(new Set(arr))
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}
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/**
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* @returns {string}
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*/
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export function createUniqueString() {
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const timestamp = +new Date() + ''
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const randomNum = parseInt((1 + Math.random()) * 65536) + ''
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return (+(randomNum + timestamp)).toString(32)
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}
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/**
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* Check if an element has a class
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* @param {HTMLElement} elm
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* @param {string} cls
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* @returns {boolean}
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*/
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export function hasClass(ele, cls) {
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return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
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}
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/**
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* Add class to element
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* @param {HTMLElement} elm
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* @param {string} cls
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*/
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export function addClass(ele, cls) {
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if (!hasClass(ele, cls)) ele.className += ' ' + cls
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}
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/**
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* Remove class from element
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* @param {HTMLElement} elm
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* @param {string} cls
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*/
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export function removeClass(ele, cls) {
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if (hasClass(ele, cls)) {
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const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
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ele.className = ele.className.replace(reg, ' ')
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}
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}
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/**
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*图片压缩
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* @param {} file
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*/
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export function imgCompress(file) {
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//把图片文件作为参数传递到方法中
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console.log(file)
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if (file.type.indexOf('image/') === -1) {
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this.$message.error('上传的文件不是图片格式!')
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return false
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} else if (file.size / 1024 / 1024 > 5) {
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this.$message.error('上传图片大小不能超过 5MB!')
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return false
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} else {
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return new Promise(resolve => {
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compress(file, 0.6).then(res => {
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resolve(res)
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})
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})
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}
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}
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export function fileAdd(file, resolve, reject) {
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console.log(file.size())
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// 判断是否为图片文件
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if (file.type.indexOf('image') === -1) {
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resolve()
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} else {
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const reader = new FileReader()
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const image = new Image()
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reader.readAsDataURL(file)
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reader.onload = function() {
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file.src = this.result
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image.onload = function() {
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const width = image.width
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const height = image.height
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file.width = width
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file.height = height
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// _this.imgL = file.src // 页面上显示所选择的图片
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}
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image.src = file.src // 页面上显示所选择的图片
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// if (file.size / 1024 > 1025) { // 判断图片的大小，超过1M 进行压缩
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startImgCompress(file, { quality: 0.2 }, resolve, reject)
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// } else {
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// _this.partitionBase = file.src.split(',')[1] // 这里是因为后台需要 base64和图片type类型两个数据，所以进行了处理
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// _this.imgType = '.' + file.type.split('/')[1]
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// }
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}
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}
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}
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// 开始图片压缩
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export function startImgCompress(path, obj, resolve, reject) {
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// path是指上传的图片，obj是压缩的品质，越低越模糊
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var img = new Image()
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img.src = path.src
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img.onload = function() {
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var that = this // 这里的this 是把img的对象指向改变为that
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// 默认按比例压缩
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var w = that.width
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var h = that.height
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var scale = w / h
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w = obj.width || w
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h = obj.height || w / scale
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var quality = 0.7 // 默认图片质量为0.7
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// 生成canvas
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var canvas = document.createElement('canvas')
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var ctx = canvas.getContext('2d')
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// 创建属性节点
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var anw = document.createAttribute('width')
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anw.nodeValue = w
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var anh = document.createAttribute('height')
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anh.nodeValue = h
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canvas.setAttributeNode(anw)
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canvas.setAttributeNode(anh)
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ctx.drawImage(that, 0, 0, w, h)
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// 图像质量
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if (obj.quality && obj.quality <= 1 && obj.quality > 0) {
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quality = obj.quality
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}
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// quality值越小，所绘制出的图像越模糊
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var base64 = canvas.toDataURL('image/png', quality)
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// 回调函数返回base64的值
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var urlFile = convertBase64UrlToBlob(base64) // 这个地方的处理是为了把压缩的base64转化为对象，获得压缩后图片的大小size，方便对压缩后的图片再次进行判断；
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console.log(urlFile.size)
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if (urlFile.size / 1024 > 1025) {
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reject()
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} else {
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resolve(urlFile)
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}
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}
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}
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// 将base64码转化为file（Blob）
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// 此处函数对压缩后的base64经过处理返回{size: "", type: ""}
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export function convertBase64UrlToBlob(urlData) {
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var arr = urlData.split(',')
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var mime = arr[0].match(/:(.*?);/)[1]
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var bstr = atob(arr[1])
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var n = bstr.length
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var u8arr = new Uint8Array(n)
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while (n--) {
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u8arr[n] = bstr.charCodeAt(n)
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}
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return new Blob([u8arr], { type: mime })
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}
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// 格式化xml
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export function formatXML(xml, tab) {
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var formatted = ''
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var indent = ''
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tab = tab || ' '
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xml.split(/>\s*</).forEach(function(node) {
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if (node.match(/^\/\w/)) indent = indent.substring(tab.length)
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formatted += indent + '<' + node + '>\r\n'
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if (node.match(/^<?\w[^>]*[^\/]$/)) indent += tab
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})
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return formatted.substring(1, formatted.length - 3)
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}
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/**
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* 获取指定日期的前n天
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* @param {*} date 日期 格式yyyy-MM-dd
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* @param {*} day 天数，1表示后一天，-1表示前一天
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*/
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export function getNextDate(date, day) {
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var dd = new Date(date)
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dd.setDate(dd.getDate() + day)
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var y = dd.getFullYear()
|
||
var m = dd.getMonth() + 1 < 10 ? '0' + (dd.getMonth() + 1) : dd.getMonth() + 1
|
||
var d = dd.getDate() < 10 ? '0' + dd.getDate() : dd.getDate()
|
||
return y + '-' + m + '-' + d
|
||
}
|
||
|
||
/**
|
||
* 构造树型结构数据
|
||
* @param {*} data 数据源
|
||
* @param {*} id id字段 默认 'id'
|
||
* @param {*} parentId 父节点字段 默认 'parentId'
|
||
* @param {*} children 孩子节点字段 默认 'children'
|
||
* @param {*} rootId 根Id 默认 0
|
||
*/
|
||
export function handleTree(data, id, parentId, children, rootId) {
|
||
id = id || 'id'
|
||
parentId = parentId || 'parentId'
|
||
children = children || 'children'
|
||
rootId = rootId || '0'
|
||
// 循环所有项
|
||
const treeData = data.filter(father => {
|
||
const branchArr = data.filter(child => {
|
||
// 返回每一项的子级数组
|
||
return father[id] === child[parentId]
|
||
})
|
||
branchArr.length > 0 ? (father.children = branchArr) : ''
|
||
// 返回第一层
|
||
return father[parentId] === rootId
|
||
})
|
||
return treeData !== '' ? treeData : data
|
||
}
|
||
|
||
/**
|
||
* 部门构造树型结构数据
|
||
* @param {*} data 数据源
|
||
* @param {*} id id字段 默认 'id'
|
||
* @param {*} parentDetpId 父节点字段 默认 'parentDetpId'
|
||
* @param {*} children 孩子节点字段 默认 'children'
|
||
*/
|
||
export function deptHandleTree(data, id, parentDetpId, children) {
|
||
let config = {
|
||
id: id || 'id',
|
||
parentDetpId: parentDetpId || 'parentDetpId',
|
||
childrenList: children || 'children'
|
||
}
|
||
|
||
var childrenListMap = {}
|
||
var nodeIds = {}
|
||
var tree = []
|
||
|
||
for (let d of data) {
|
||
let parentDetpId = d[config.parentDetpId]
|
||
if (childrenListMap[parentDetpId] == null) {
|
||
childrenListMap[parentDetpId] = []
|
||
}
|
||
nodeIds[d[config.id]] = d
|
||
childrenListMap[parentDetpId].push(d)
|
||
}
|
||
|
||
for (let d of data) {
|
||
let parentDetpId = d[config.parentDetpId]
|
||
if (nodeIds[parentDetpId] == null) {
|
||
tree.push(d)
|
||
}
|
||
}
|
||
|
||
for (let t of tree) {
|
||
adaptToChildrenList(t)
|
||
}
|
||
|
||
function adaptToChildrenList(o) {
|
||
if (childrenListMap[o[config.id]] !== null) {
|
||
o[config.childrenList] = childrenListMap[o[config.id]]
|
||
}
|
||
if (o[config.childrenList]) {
|
||
for (let c of o[config.childrenList]) {
|
||
adaptToChildrenList(c)
|
||
}
|
||
}
|
||
}
|
||
return tree
|
||
}
|
||
|
||
// 首字母大小
|
||
export function titleCase(str) {
|
||
return str.replace(/( |^)[a-z]/g, L => L.toUpperCase())
|
||
}
|
||
|
||
// 下划转驼峰
|
||
export function camelCase(str) {
|
||
return str.replace(/-[a-z]/g, str1 => str1.substr(-1).toUpperCase())
|
||
}
|
||
|
||
export function isNumberStr(str) {
|
||
return /^[+-]?(0|([1-9]\d*))(\.\d+)?$/g.test(str)
|
||
}
|
||
|
||
export const beautifierConf = {
|
||
html: {
|
||
indent_size: '2',
|
||
indent_char: ' ',
|
||
max_preserve_newlines: '-1',
|
||
preserve_newlines: false,
|
||
keep_array_indentation: false,
|
||
break_chained_methods: false,
|
||
indent_scripts: 'separate',
|
||
brace_style: 'end-expand',
|
||
space_before_conditional: true,
|
||
unescape_strings: false,
|
||
jslint_happy: false,
|
||
end_with_newline: true,
|
||
wrap_line_length: '110',
|
||
indent_inner_html: true,
|
||
comma_first: false,
|
||
e4x: true,
|
||
indent_empty_lines: true
|
||
},
|
||
js: {
|
||
indent_size: '2',
|
||
indent_char: ' ',
|
||
max_preserve_newlines: '-1',
|
||
preserve_newlines: false,
|
||
keep_array_indentation: false,
|
||
break_chained_methods: false,
|
||
indent_scripts: 'normal',
|
||
brace_style: 'end-expand',
|
||
space_before_conditional: true,
|
||
unescape_strings: false,
|
||
jslint_happy: true,
|
||
end_with_newline: true,
|
||
wrap_line_length: '110',
|
||
indent_inner_html: true,
|
||
comma_first: false,
|
||
e4x: true,
|
||
indent_empty_lines: true
|
||
}
|
||
}
|
||
|
||
export const exportDefault = 'export default '
|
||
|
||
// 类型判断
|
||
export function typeJudgment(object) {
|
||
try {
|
||
let res = {}.__proto__.toString.call(object)
|
||
// let type = /(?<= ).+(?=\])/.exec(res);
|
||
let type = res.replace(/[\[\]]/g, '').split(' ')
|
||
return type.length ? type[1] : ''
|
||
} catch (error) {
|
||
return ''
|
||
}
|
||
}
|
||
// url取参
|
||
export function urlParamsHandle(url) {
|
||
const search = url.split('?')[1]
|
||
if (!search) {
|
||
return {}
|
||
}
|
||
const result = {}
|
||
const searchArr = search.split('&')
|
||
searchArr.forEach(v => {
|
||
const index = v.indexOf('=')
|
||
if (index !== -1) {
|
||
const name = v.substring(0, index)
|
||
const val = v.substring(index + 1, v.length)
|
||
result[name] = val
|
||
}
|
||
})
|
||
return result
|
||
}
|