iter(g132): 新增 @提及输入 mentions

This commit is contained in:
HIsheR
2026-10-26 15:22:59 +08:00
parent eac02f0c80
commit 9d0c195beb
12 changed files with 382 additions and 10 deletions
+1
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@@ -63,3 +63,4 @@ export { calendar } from './calendar.js';
export { typography } from './typography.js';
export { grid } from './grid.js';
export { floatButton } from './floatButton.js';
export { mentions } from './mentions.js';
+114
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@@ -0,0 +1,114 @@
import { effect, h, signal } from '@ui-arch/frame';
import type { MentionItem, MentionsProps } from './types.js';
// 每个实例的 listbox id 前缀,保证 aria-activedescendant 唯一
let seq = 0;
/*** 取光标前的 @ 触发词(不含 @ 本身):没有未闭合的 @ 片段时返回 null ***/
function tokenBefore(text: string, caret: number): string | null {
const match = /@([^\s@]*)$/.exec(text.slice(0, caret));
return match ? match[1] : null;
}
/*** 用选中的名字替换光标前的 @片段,返回替换后的全文与新光标位置 ***/
function applyPick(text: string, caret: number, name: string): { text: string; caret: number } {
const head = text.slice(0, caret).replace(/@[^\s@]*$/, `@${name} `);
return { text: head + text.slice(caret), caret: head.length };
}
/*** @提及输入:textarea 内键入 @ 弹候选,↑↓ 环形移动、Enter/Tab 选中、Esc 只收本层;弹层贴输入框下沿,选中按光标替换 @片段 ***/
export function mentions(props: MentionsProps): HTMLElement {
const uid = `ua-mentions-${++seq}`;
const items = props.items;
const value = props.value ?? signal('');
const open = signal(false); // 弹层开合
const query = signal(''); // 当前 @ 后的过滤词
const active = signal(0); // 高亮项下标
const input = h('textarea', {
class: 'ua-mentions-input',
rows: String(props.rows ?? 3),
placeholder: props.placeholder ?? '',
'aria-autocomplete': 'list',
'aria-controls': uid,
'aria-expanded': 'false',
}) as HTMLTextAreaElement;
input.value = value();
const list = h('div', { class: 'ua-mentions-pop', role: 'listbox', id: uid });
const wrap = h('div', { class: 'ua-mentions' }, input, list);
// 候选:空过滤词给全量,否则按名字 / 关键词做包含匹配
const filtered = (): MentionItem[] => (query()
? items.filter((it) => it.name.includes(query()) || (it.keywords ?? []).some((k) => k.includes(query())))
: items);
/*** 重绘弹层:同步显隐、高亮项与 aria-activedescendant(无候选时不开层) ***/
const paint = (): void => {
const shown = filtered();
const visible = open() && shown.length > 0;
wrap.classList.toggle('is-open', visible);
input.setAttribute('aria-expanded', String(visible));
list.replaceChildren(...shown.map((item, i) => h('div', {
class: `ua-mentions-item${i === active() ? ' is-active' : ''}`,
role: 'option',
id: `${uid}-${i}`,
'aria-selected': i === active() ? 'true' : 'false',
onmousedown: (e: Event) => { e.preventDefault(); pick(item); }, // 阻止默认让 textarea 不失焦
}, h('span', { class: 'ua-mentions-name' }, item.label),
item.description ? h('span', { class: 'ua-mentions-desc' }, item.description) : null)));
if (visible) input.setAttribute('aria-activedescendant', `${uid}-${active()}`);
else input.removeAttribute('aria-activedescendant');
};
/*** 选中候选:替换光标前的 @片段、写回信号、光标落到插入文本之后 ***/
const pick = (item: MentionItem): void => {
const caret = input.selectionStart ?? input.value.length;
const next = applyPick(input.value, caret, item.name);
input.value = next.text;
value(next.text);
input.setSelectionRange(next.caret, next.caret);
input.focus();
open(false);
query('');
paint();
props.onSelect?.(item);
};
input.addEventListener('input', () => {
value(input.value);
props.onInput?.(input.value);
const token = tokenBefore(input.value, input.selectionStart ?? input.value.length);
query(token ?? '');
active(0); // 每次输入重新从第一项开始高亮
open(token !== null);
paint();
});
input.addEventListener('keydown', (e) => {
if (!open()) return; // 未开层时所有按键交给浏览器
const shown = filtered();
if (e.key === 'Escape') {
e.preventDefault();
e.stopPropagation(); // 只收本层,不连带外层弹层
open(false);
paint();
return;
}
if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
e.preventDefault();
active((active() + (e.key === 'ArrowDown' ? 1 : -1) + shown.length) % shown.length); // 环形移动
paint();
return;
}
if ((e.key === 'Enter' || e.key === 'Tab') && shown.length) {
e.preventDefault();
pick(shown[Math.min(active(), shown.length - 1)]);
}
});
input.addEventListener('blur', () => { open(false); paint(); }); // 失焦收起
effect(() => {
const outer = value();
if (outer !== input.value) input.value = outer; // 外部改信号时同步输入框
});
return wrap;
}
+18
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@@ -777,4 +777,22 @@ export interface FloatButtonProps {
onClick?: () => void; // 点击回调
}
/*** @提及候选项 ***/
export interface MentionItem {
name: string; // 插入正文的名字(@ 之后的部分,如 zhangsan)
label: string; // 候选行显示名称(如 张三)
description?: string; // 候选行右侧说明(部门 / 邮箱)
keywords?: string[]; // 额外匹配词(拼音、工号),不显示只参与过滤
}
/*** @提及输入入参 ***/
export interface MentionsProps {
items: MentionItem[]; // 候选池:键入 @ 后按名字 / 关键词过滤
value?: Signal<string>; // 受控文本信号;不传则内部维护
rows?: number; // 输入框行数;缺省 3
placeholder?: string; // 占位文案
onSelect?: (item: MentionItem) => void; // 选中某人后的回调(弹层已收起)
onInput?: (text: string) => void; // 每次输入的回调,参数为当前全文
}
export type { ColumnDef, RowKey }; // 再导出常用内核类型,方便调用方
+52 -1
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@@ -77,7 +77,8 @@
"calendar(props):月历,整月网格内嵌页面(排期 / 值班 / 日程),每日可带 marker 标记文案,方向键漫游 + Enter 选中,翻月走 onMonthChange",
"typography(props):排版文本,variant 决定语义(标题出 h1-h5 / 段落出 p / 行内出 span),支持语义色、装饰位、对齐、多行截断与复制按钮",
"grid(props, ...children):栅格容器,columns 固定列数或 min 走 auto-fit 自适应列宽,gutter 统一列间距,窄屏自动降为单列",
"floatButton(props):悬浮操作按钮,固定停靠左下 / 右下角,label 缺省为纯图标圆形,badge 走角标,tooltip 兼作 aria-label"
"floatButton(props):悬浮操作按钮,固定停靠左下 / 右下角,label 缺省为纯图标圆形,badge 走角标,tooltip 兼作 aria-label",
"mentions(props):@提及输入,textarea 内键入 @ 弹候选(名字 / 关键词过滤),↑↓ 环形移动、Enter/Tab 选中、Esc 只收本层,选中按光标替换并写回 value"
],
"keyTypes": [
"ButtonProps",
@@ -3133,6 +3134,56 @@
"右下角已被 backTop 占用,页面同时有返回顶部时用 position: 'left-bottom'",
"纯展示 + 单回调,没有选中态与开合状态;需要多级操作请用 menu / popover 挂在 onClick 上"
]
},
{
"id": "mentions",
"title": "@提及输入 Mentions",
"demo": "sec-mentions",
"props": [
{
"n": "items",
"t": "MentionItem[]",
"r": 1,
"d": "候选池:每项含 name(插入正文的名字)、label(显示名)、description(说明)、keywords(只参与过滤的额外匹配词)"
},
{
"n": "value",
"t": "Signal<string>",
"d": "受控文本信号;不传则组件内部维护(拿不到外部读取时不要传)"
},
{
"n": "rows",
"t": "number",
"df": "3",
"d": "输入框行数"
},
{
"n": "placeholder",
"t": "string",
"d": "占位文案"
},
{
"n": "onSelect",
"t": "(item: MentionItem) => void",
"k": 1,
"d": "选中某人后的回调(弹层已收起,正文已替换)"
},
{
"n": "onInput",
"t": "(text: string) => void",
"k": 1,
"d": "每次输入的回调,参数为当前全文(已写回 value 信号)"
}
],
"example": "const text = signal(''); mentions({ items: [{ name: 'zhangsan', label: '张三', description: '前端', keywords: ['zs'] }], value: text, placeholder: '输入 @ 叫人', onSelect: (it) => toast.info(it.label) })",
"steps": [
"在输入框里键入 @ 触发弹层,继续打字按 name / keywords 过滤(拼音、工号放 keywords,不出现在候选行里)",
"键盘:↑↓ 环形移动高亮、Enter 或 Tab 选中、Esc 只收这一层弹层(stopPropagation,不会连带关掉外层弹窗)",
"选中后组件按光标位置把 @片段替换成「@名字 + 空格」,光标落在其后,可以接着打字",
"受控用法:传 value 信号并在 onSelect / onInput 里读最新全文;外部改信号会同步回输入框,别同时再手写 input 事件",
"弹层贴在输入框下沿而非跟随光标行(多行输入里更稳定,也不会被行高算错),需要跟随光标请自绘",
"要限制可选人范围就在 items 上做过滤,组件不做远程搜索;远程场景用 onInput 拉数据后重建 items"
]
}
]
}
+77
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@@ -4151,3 +4151,80 @@ h5.ua-type-title { font-size: var(--ua-font-size-md); }
transform: none;
}
}
/* —— @提及输入:弹层贴输入框下沿,候选行高亮走淡色底 —— */
.ua-mentions {
position: relative;
display: inline-block;
width: 100%;
}
.ua-mentions-input {
width: 100%;
box-sizing: border-box;
padding: var(--ua-space-2) var(--ua-space-3);
border: 1px solid var(--ua-color-border);
border-radius: var(--ua-radius-md);
background: var(--ua-color-surface);
color: var(--ua-color-text);
font: inherit;
font-size: var(--ua-font-size-md);
line-height: 1.6;
resize: vertical;
transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.ua-mentions-input:focus {
outline: none;
border-color: var(--ua-color-accent);
box-shadow: 0 0 0 3px color-mix(in srgb, var(--ua-color-accent) 22%, transparent);
}
.ua-mentions-pop {
position: absolute;
left: 0;
right: 0;
top: calc(100% + 4px);
z-index: 30;
display: none;
max-height: 220px;
overflow-y: auto;
padding: var(--ua-space-1);
border: 1px solid var(--ua-color-border);
border-radius: var(--ua-radius-md);
background: var(--ua-color-surface);
box-shadow: 0 12px 28px color-mix(in srgb, var(--ua-color-text) 16%, transparent);
}
.ua-mentions.is-open .ua-mentions-pop {
display: block;
animation: ua-mentions-in 0.15s ease;
}
.ua-mentions-item {
display: flex;
align-items: baseline;
gap: var(--ua-space-2);
padding: var(--ua-space-2) var(--ua-space-2);
border-radius: var(--ua-radius-sm);
cursor: pointer;
transition: background 0.15s ease;
}
.ua-mentions-item.is-active {
background: color-mix(in srgb, var(--ua-color-accent) 10%, transparent); /* 选中态低视觉比重 */
}
.ua-mentions-name {
color: var(--ua-color-text);
}
.ua-mentions-desc {
color: var(--ua-color-text-muted);
font-size: var(--ua-font-size-sm);
}
@keyframes ua-mentions-in {
from { opacity: 0; transform: translateY(-4px); }
to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
.ua-mentions.is-open .ua-mentions-pop {
animation: none;
}
.ua-mentions-input,
.ua-mentions-item {
transition: none;
}
}