70 lines
2.1 KiB
React
70 lines
2.1 KiB
React
import React, { useState, useMemo, useCallback } from 'react';
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import './PasswordInput.css';
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function levelOf(v) {
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if (!v) return '';
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let s = 0;
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if (v.length >= 8) s++;
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if (/[a-z]/.test(v) && /[A-Z]/.test(v)) s++;
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if (/\d/.test(v)) s++;
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if (/[^A-Za-z0-9]/.test(v)) s++;
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if (v.length >= 12) s++;
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if (s <= 2) return 'weak';
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if (s <= 3) return 'mid';
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return 'strong';
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}
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export default function PasswordInput({ value = '', placeholder = '请输入密码', showStrength = true, onChange }) {
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const [visible, setVisible] = useState(false);
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const [focused, setFocused] = useState(false);
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const level = useMemo(() => levelOf(value), [value]);
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const tip = useMemo(() => {
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if (level === 'weak') return '弱：建议使用字母、数字与符号组合';
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if (level === 'mid') return '中：再增加长度或符号更安全';
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if (level === 'strong') return '强：密码强度良好';
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return '';
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}, [level]);
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const handle = useCallback(
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(e) => {
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if (onChange) onChange(e.target.value);
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},
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[onChange]
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);
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const barClass = (i) => {
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if (!showStrength || !level) return '';
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const on =
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(level === 'weak' && i < 1) || (level === 'mid' && i < 2) || (level === 'strong' && i < 3);
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return on ? 'on ' + level : '';
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};
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return (
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<div className="aa-pwd">
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<div className={'aa-pwd-field' + (focused ? ' is-focus' : '')}>
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<input
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className="aa-pwd-input"
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type={visible ? 'text' : 'password'}
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value={value}
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placeholder={placeholder}
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onChange={handle}
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onFocus={() => setFocused(true)}
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onBlur={() => setFocused(false)}
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/>
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<button className="aa-pwd-toggle" type="button" onClick={() => setVisible((v) => !v)}>
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{visible ? '隐藏' : '显示'}
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</button>
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</div>
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{showStrength && (
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<div className="aa-pwd-strength">
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{[0, 1, 2].map((i) => (
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<span key={i} className={'aa-pwd-bar ' + barClass(i)} />
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))}
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</div>
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)}
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<div className="aa-pwd-tip">{tip}</div>
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</div>
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);
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}
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