ref
This commit is contained in:
Tyrel Souza
parent
ac8e190595
commit
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@ -1 +1 @@
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@ -1,4 +1,10 @@
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import React, { useState, useEffect, useReducer, useContext } from "react"
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import React, {
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useState,
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useEffect,
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useReducer,
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useContext,
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useRef,
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} from "react"
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import Card from "../UI/Card/Card"
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import classes from "./Login.module.css"
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@ -30,6 +36,8 @@ const passwordReducer = (state, action) => {
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const Login = (props) => {
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const [formIsValid, setFormIsValid] = useState(false)
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const authCtx = useContext(AuthContext)
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const emailInputRef = useRef()
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const passwordInputRef = useRef()
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const [emailState, dispatchEmail] = useReducer(emailReducer, {
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value: "",
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@ -76,13 +84,20 @@ const Login = (props) => {
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const submitHandler = (event) => {
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event.preventDefault()
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authCtx.onLogin(emailState.value, passwordState.value)
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if (formIsValid) {
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authCtx.onLogin(emailState.value, passwordState.value)
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} else if (!emailIsValid) {
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emailInputRef.current.focus()
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} else {
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passwordInputRef.current.focus()
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}
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}
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return (
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<Card className={classes.login}>
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<form onSubmit={submitHandler}>
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<Input
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ref={emailInputRef}
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id="email"
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type="email"
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label="E-Mail"
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@ -92,6 +107,7 @@ const Login = (props) => {
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onBlur={validateEmailHandler}
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/>
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<Input
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ref={passwordInputRef}
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id="password"
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type="password"
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label="Password"
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@ -101,11 +117,7 @@ const Login = (props) => {
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onBlur={validatePasswordHandler}
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/>
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<div className={classes.actions}>
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<Button
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type="submit"
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className={classes.btn}
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disabled={!formIsValid}
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>
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<Button type="submit" className={classes.btn}>
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Login
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</Button>
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</div>
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@ -1,7 +1,18 @@
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import React from "react"
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import React, { useRef, useImperativeHandle } from "react"
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import classes from "./Input.module.css"
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function Input(props) {
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const Input = React.forwardRef((props, ref) => {
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const inputRef = useRef()
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const activate = () => {
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inputRef.current.focus()
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}
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useImperativeHandle(ref, () => {
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return {
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focus: activate,
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}
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})
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return (
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<div
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className={`${classes.control} ${
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@ -10,6 +21,7 @@ function Input(props) {
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>
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<label htmlFor="email">{props.label}</label>
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<input
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ref={inputRef}
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type={props.type}
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id={props.id}
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value={props.value}
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@ -18,6 +30,6 @@ function Input(props) {
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/>
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</div>
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)
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}
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})
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export default Input
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