mirror of
https://github.com/d0zingcat/NotionNext.git
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76 lines
2.5 KiB
JavaScript
76 lines
2.5 KiB
JavaScript
import { useGlobal } from '@/lib/global'
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import { faArrowDown } from '@fortawesome/free-solid-svg-icons'
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import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
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import throttle from 'lodash.throttle'
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import { useCallback, useEffect, useState } from 'react'
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import Typed from 'typed.js'
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/**
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*
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* @returns 头图
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*/
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export default function Header () {
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const [typed, changeType] = useState()
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useEffect(() => {
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if (!typed && window && document.getElementById('typed')) {
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changeType(new Typed('#typed', {
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strings: ['Hi，我是一个程序员', 'Hi，我是一个打工人', 'Hi，我是一个干饭人', '欢迎来到我的博客🎉'],
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typeSpeed: 200,
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backSpeed: 100,
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backDelay: 400,
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showCursor: true,
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smartBackspace: true
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}))
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}
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})
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const scrollToCenter = () => {
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document.getElementById('wrapper').scrollIntoView({ behavior: 'smooth' })
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}
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const { theme } = useGlobal()
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// 监听滚动
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let windowTop = 0
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const scrollTrigger = useCallback(throttle(() => {
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if (window.scrollY > windowTop & window.scrollY < window.innerHeight) {
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scrollToCenter()
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}
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if (window.scrollY < windowTop & window.scrollY < window.innerHeight) {
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window.scroll({ top: 0, behavior: 'smooth' })
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}
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windowTop = window.scrollY
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updateTopNav()
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}, 500))
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const updateTopNav = () => {
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if (theme !== 'dark') {
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const stickyNavElement = document.getElementById('sticky-nav')
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if (window.scrollY < window.innerHeight) {
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stickyNavElement.classList.add('dark')
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} else {
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stickyNavElement.classList.remove('dark')
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}
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}
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}
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// 监听滚动
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useEffect(() => {
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updateTopNav()
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window.addEventListener('scroll', scrollTrigger)
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return () => {
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window.removeEventListener('scroll', scrollTrigger)
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}
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})
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return <header className='h-screen w-full'>
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<div className='absolute z-10 flex h-screen items-center justify-center w-full text-4xl md:text-7xl text-white'>
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<div id="typed" className=' text-center font-serif'></div>
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<div onClick={scrollToCenter} className='cursor-pointer w-full text-center text-2xl animate-bounce absolute bottom-10 text-white'><FontAwesomeIcon icon={faArrowDown} /></div>
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</div>
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<div className='bg-black bg-cover bg-center h-screen md:-mt-14 animate__fadeInRight animate_fadeIn'
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style={{ backgroundImage: 'linear-gradient(rgba(0, 0, 0, 0.5), rgba(0,0,0,0.4), rgba(0, 0, 0, 0.5) ),url("./bg_image.jpg")' }}>
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</div>
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</header>
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}
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