79 lines
3.1 KiB
Plaintext
79 lines
3.1 KiB
Plaintext
import React, { useState, useRef, useEffect } from 'react';
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import './Mention.css';
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const USERS = [
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{ name: '王伟', dept: '华东大区' }, { name: '李娜', dept: '华南大区' }, { name: '张强', dept: '华北大区' },
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{ name: '陈静', dept: '研发中心' }, { name: '刘洋', dept: '市场部' }
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];
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export default function Mention({ modelValue = '', users = USERS, onChange }) {
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const [open, setOpen] = useState(false);
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const [active, setActive] = useState(-1);
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const [mentioned, setMentioned] = useState([]);
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const inputRef = useRef(null);
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const root = useRef(null);
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useEffect(() => {
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const onDoc = (e) => { if (root.current && !root.current.contains(e.target)) setOpen(false); };
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document.addEventListener('click', onDoc);
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return () => document.removeEventListener('click', onDoc);
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}, []);
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const onInput = (e) => {
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const pos = e.target.selectionStart, v = e.target.value;
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if (onChange) onChange(v);
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const at = v.lastIndexOf('@', pos - 1);
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if (at >= 0 && (at === 0 || /\s/.test(v[at - 1])) && !/\s/.test(v.slice(at + 1, pos))) { setActive(-1); setOpen(true); }
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else setOpen(false);
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};
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const move = (d) => setActive((a) => Math.max(-1, Math.min(users.length - 1, a + d)));
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const insert = (name) => {
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const el = inputRef.current, pos = el.selectionStart, v = el.value;
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const at = v.lastIndexOf('@', pos - 1);
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if (at >= 0 && (at === 0 || /\s/.test(v[at - 1]))) el.value = v.slice(0, at) + '@' + name + ' ' + v.slice(pos);
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else el.value = v.slice(0, pos) + '@' + name + ' ' + v.slice(pos);
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if (mentioned.indexOf(name) < 0) setMentioned((m) => [...m, name]);
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if (onChange) onChange(el.value);
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setOpen(false);
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el.focus();
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};
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const remove = (n) => setMentioned((m) => m.filter((x) => x !== n));
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return (
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<div className="aa-mention" ref={root}>
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<div className="aa-mention-area">
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<textarea
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ref={inputRef}
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className="aa-mention-input"
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value={modelValue}
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rows={3}
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placeholder="输入 @ 提及同事…"
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onChange={onInput}
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onKeyDown={(e) => {
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if (e.key === 'ArrowDown') { e.preventDefault(); move(1); }
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else if (e.key === 'ArrowUp') { e.preventDefault(); move(-1); }
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else if (e.key === 'Enter') { e.preventDefault(); if (active >= 0) insert(users[active].name); }
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else if (e.key === 'Escape') setOpen(false);
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}}
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/>
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{open && (
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<div className="aa-mention-panel">
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{users.map((u, i) => (
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<div key={u.name} className={'aa-mention-item' + (i === active ? ' is-active' : '')} onClick={() => insert(u.name)}>
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<span className="aa-mention-avatar">{u.name[0]}</span>
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<span className="aa-mention-name">{u.name}</span>
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<span className="aa-mention-dept">{u.dept}</span>
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</div>
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))}
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</div>
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)}
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</div>
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<div className="aa-mention-chips">
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{mentioned.map((n) => (
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<span key={n} className="aa-mention-chip">@{n} <b onClick={() => remove(n)}>×</b></span>
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))}
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</div>
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</div>
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);
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}
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