️ UserCard: React.memo + <a> instead of <div>

This commit is contained in:
divlo
2020-08-03 13:18:58 +02:00
parent 337868cf5f
commit dc962c9120
5 changed files with 152 additions and 119 deletions

View File

@ -1,74 +1,95 @@
import { useState, useEffect, useRef, useCallback } from 'react'
import Link from 'next/link'
import HeadTag from '../../components/HeadTag'
import Loader from '../../components/Loader'
import UserCard from '../../components/UserCard/UserCard'
import api from '../../utils/api'
import '../../public/css/pages/users.css'
import { API_URL } from '../../utils/config/config'
const Users = () => {
let pageUsers = 1
const [inputSearch, setInputSearch] = useState('')
const [usersData, setUsersData] = useState({ totalItems: 0, hasMore: true, rows: [] })
const [usersData, setUsersData] = useState({
totalItems: 0,
hasMore: true,
rows: []
})
const [isLoadingUsers, setLoadingUsers] = useState(true)
// Récupère les users si la recherche change
useEffect(() => {
pageUsers = 1
getUsersData().then((data) => setUsersData(data))
getUsersData().then(data => setUsersData(data))
}, [inputSearch])
const getUsersData = async () => {
setLoadingUsers(true)
const { data } = await api.get(`/users?page=${pageUsers}&limit=15&search=${inputSearch}`)
const { data } = await api.get(
`/users?page=${pageUsers}&limit=15&search=${inputSearch}`
)
setLoadingUsers(false)
return data
}
const handleSearchChange = (event) => {
const handleSearchChange = event => {
setInputSearch(event.target.value)
}
// Permet la pagination au scroll
const observer = useRef()
const lastUserCardRef = useCallback((node) => {
if (isLoadingUsers) return
if (observer.current) observer.current.disconnect()
observer.current = new window.IntersectionObserver((entries) => {
if (entries[0].isIntersecting && usersData.hasMore) {
pageUsers += 1
getUsersData().then((data) => {
setUsersData((oldData) => {
return {
totalItems: data.totalItems,
hasMore: data.hasMore,
rows: [...oldData.rows, ...data.rows]
}
})
})
}
}, { threshold: 1 })
if (node) observer.current.observe(node)
}, [isLoadingUsers, usersData.hasMore])
const lastUserCardRef = useCallback(
node => {
if (isLoadingUsers) return
if (observer.current) observer.current.disconnect()
observer.current = new window.IntersectionObserver(
entries => {
if (entries[0].isIntersecting && usersData.hasMore) {
pageUsers += 1
getUsersData().then(data => {
setUsersData(oldData => {
return {
totalItems: data.totalItems,
hasMore: data.hasMore,
rows: [...oldData.rows, ...data.rows]
}
})
})
}
},
{ threshold: 1 }
)
if (node) observer.current.observe(node)
},
[isLoadingUsers, usersData.hasMore]
)
return (
<>
<HeadTag
title='Utilisateurs'
description='Liste des utilisateurs.'
/>
<HeadTag title='Utilisateurs' description='Liste des utilisateurs.' />
<div className='container text-center'>
<div className='row justify-content-center'>
<div className='col-24'>
<h1 style={{ marginBottom: 0, paddingTop: '20px' }}>Utilisateurs</h1>
<p style={{ marginTop: '5px' }}>La liste des utilisateurs - Total de {usersData.totalItems} utilisateurs :</p>
<h1 style={{ marginBottom: 0, paddingTop: '20px' }}>
Utilisateurs
</h1>
<p style={{ marginTop: '5px' }}>
La liste des utilisateurs - Total de {usersData.totalItems}{' '}
utilisateurs :
</p>
</div>
</div>
<div className='Users__search-container row justify-content-center'>
<input value={inputSearch} onChange={handleSearchChange} type='search' className='Users__form-control Users__search-input' name='search' id='search' placeholder='🔎 Rechercher...' />
<input
value={inputSearch}
onChange={handleSearchChange}
type='search'
className='Users__form-control Users__search-input'
name='search'
id='search'
placeholder='🔎 Rechercher...'
/>
</div>
<div className='row justify-content-center'>
@ -76,25 +97,11 @@ const Users = () => {
// Si c'est le dernier élément
if (usersData.rows.length === index + 1) {
return (
<div ref={lastUserCardRef} key={user.id} className='UserCard col-sm-24 col-md-10 col-xl-7'>
<Link href='/users/[name]' as={`/users/${user.name}`}>
<div className='UserCard__container'>
<img className='UserCard__logo' src={API_URL + user.logo} alt={user.name} />
<h2 className='UserCard__name'>{user.name}</h2>
</div>
</Link>
</div>
<UserCard key={index} {...user} ref={lastUserCardRef} />
)
}
return (
<div key={user.id} className='UserCard col-sm-24 col-md-10 col-xl-7'>
<Link href='/users/[name]' as={`/users/${user.name}`}>
<div className='UserCard__container'>
<img className='UserCard__logo' src={API_URL + user.logo} alt={user.name} />
<h2 className='UserCard__name'>{user.name}</h2>
</div>
</Link>
</div>
<UserCard key={index} {...user} />
)
})}
</div>