mirror of
https://github.com/d0zingcat/NotionNext.git
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182 lines
4.0 KiB
JavaScript
182 lines
4.0 KiB
JavaScript
// 封装异步加载资源的方法
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import { memo } from 'react'
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/**
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* 组件持久化
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*/
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export const memorize = (Component) => {
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const MemoizedComponent = (props) => {
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return <Component {...props} />
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}
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return memo(MemoizedComponent)
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}
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/**
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* 加载外部资源
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* @param url 地址 例如 https://xx.com/xx.js
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* @param type js 或 css
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* @returns {Promise<unknown>}
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*/
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export function loadExternalResource(url, type) {
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// 检查是否已存在
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const elements = document.querySelectorAll(`[href='${url}']`)
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if (elements.length > 0 || !url) {
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return
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}
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return new Promise((resolve, reject) => {
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let tag
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if (type === 'css') {
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tag = document.createElement('link')
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tag.rel = 'stylesheet'
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tag.href = url
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} else if (type === 'font') {
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tag = document.createElement('link')
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tag.rel = 'preload'
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tag.as = 'font'
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tag.href = url
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} else if (type === 'js') {
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tag = document.createElement('script')
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tag.src = url
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}
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if (tag) {
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tag.onload = () => resolve(url)
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tag.onerror = () => reject(url)
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document.head.appendChild(tag)
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}
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})
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}
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/**
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* 查询url中的query参数
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* @param {}} variable
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* @returns
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*/
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export function getQueryVariable(key) {
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const query = isBrowser() ? window.location.search.substring(1) : ''
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const vars = query.split('&')
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for (let i = 0; i < vars.length; i++) {
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const pair = vars[i].split('=')
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if (pair[0] === key) { return pair[1] }
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}
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return (false)
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}
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/**
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* 获取 URL 中指定参数的值
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* @param {string} url
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* @param {string} param
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* @returns {string|null}
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*/
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export function getQueryParam(url, param) {
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const searchParams = new URLSearchParams(url.split('?')[1])
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return searchParams.get(param)
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}
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/**
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* 深度合并两个对象
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* @param target
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* @param sources
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*/
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export function mergeDeep(target, ...sources) {
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if (!sources.length) return target
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const source = sources.shift()
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if (isObject(target) && isObject(source)) {
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for (const key in source) {
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if (isObject(source[key])) {
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if (!target[key]) Object.assign(target, { [key]: {} })
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mergeDeep(target[key], source[key])
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} else {
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Object.assign(target, { [key]: source[key] })
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}
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}
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}
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return mergeDeep(target, ...sources)
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}
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/**
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* 是否对象
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* @param item
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* @returns {boolean}
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*/
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export function isObject(item) {
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return (item && typeof item === 'object' && !Array.isArray(item))
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}
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/**
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* 是否可迭代
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* @param {*} obj
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* @returns
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*/
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export function isIterable(obj) {
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return obj != null && typeof obj[Symbol.iterator] === 'function'
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}
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export function deepClone(obj) {
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const newObj = Array.isArray(obj) ? [] : {}
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if (obj && typeof obj === 'object') {
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for (const key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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newObj[key] = (obj && typeof obj[key] === 'object') ? deepClone(obj[key]) : obj[key]
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}
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}
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}
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return newObj
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}
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/**
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* 延时
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* @param {*} ms
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* @returns
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*/
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export const delay = ms => new Promise(resolve => setTimeout(resolve, ms))
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/**
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* 判断是否客户端
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* @returns {boolean}
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*/
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export const isBrowser = () => typeof window !== 'undefined'
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/**
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* 获取从第1页到指定页码的文章
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* @param pageIndex 第几页
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* @param list 所有文章
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* @param pageSize 每页文章数量
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* @returns {*}
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*/
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export const getListByPage = function (list, pageIndex, pageSize) {
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return list.slice(
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0,
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pageIndex * pageSize
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)
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}
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/**
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* 判断是否移动设备
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*/
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export const isMobile = () => {
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let isMobile = false
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if (!isBrowser()) {
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return isMobile
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}
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// 这个判断会引发 TypeError: navigator.userAgentData.mobile is undefined 问题,导致博客无法正常工作
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// if (!isMobile && navigator.userAgentData.mobile) {
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// isMobile = true
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// }
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if (!isMobile && (/Mobi|Android|iPhone/i.test(navigator.userAgent))) {
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isMobile = true
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}
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if (/Android|iPhone|iPad|iPod/i.test(navigator.platform)) {
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isMobile = true
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}
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if (typeof window.orientation !== 'undefined') {
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isMobile = true
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}
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return isMobile
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}
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