iter(g55): 新增 checkboxGroup 多选组组件

This commit is contained in:
HIsheR
2026-10-26 12:19:23 +08:00
parent 73b37b1cdf
commit e54fdb6f22
12 changed files with 270 additions and 10 deletions
+60
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@@ -0,0 +1,60 @@
import { effect, h, signal } from '@ui-arch/frame';
import type { Signal } from '@ui-arch/frame';
import type { CheckboxGroupProps } from './types.js';
/*** 多选组:value 数组信号双向绑定,min/max 用「禁用边界」而非报错,可选全选行(含半选) ***/
export function checkboxGroup(props: CheckboxGroupProps): HTMLElement {
// —— 状态集中声明 ——
const value: Signal<string[]> = props.value ?? signal<string[]>([]); // 选中值
const inputs: HTMLInputElement[] = []; // 各选项勾选框
const dir = props.direction ?? 'horizontal'; // 排列方向
const usable = props.options.filter((o) => !o.disabled); // 可勾选项(全选基数)
/*** 整组禁用:布尔直接取,信号在此读取以纳入 effect 依赖 ***/
const groupOff = (): boolean => (typeof props.disabled === 'function' ? props.disabled() : props.disabled === true);
/*** 变更落库:写信号 + 回调,边界不在此处拒绝——由 sync 提前禁用越界选项 ***/
const update = (next: string[]): void => {
value(next);
props.onChange?.([...next]);
};
const all = h('input', { type: 'checkbox', class: 'ua-checkbox', 'aria-label': '全选' }) as HTMLInputElement;
all.addEventListener('change', () => {
update(all.checked ? usable.map((o) => o.value) : []); // 全选只覆盖未禁用项
});
const rows = props.options.map((opt) => {
const input = h('input', { type: 'checkbox', class: 'ua-checkbox' }) as HTMLInputElement;
input.value = opt.value;
input.addEventListener('change', () => {
const cur = new Set(value());
input.checked ? cur.add(opt.value) : cur.delete(opt.value); // 用户操作写回
update([...cur]);
});
inputs.push(input);
return h('label', { class: 'ua-check-row' }, input, opt.label);
});
/*** 同步勾选与可见可用性:到上限禁用未选项、到下限禁用已选项(不改值只锁操作) ***/
const sync = (): void => {
const cur = value();
const off = groupOff();
const atMax = props.max != null && cur.length >= props.max;
const atMin = props.min != null && cur.length <= props.min;
props.options.forEach((opt, i) => {
const input = inputs[i];
const on = cur.includes(opt.value);
input.checked = on;
input.disabled = off || opt.disabled === true || (on ? atMin : atMax); // 边界项锁死,避免越界
});
const picked = usable.filter((o) => cur.includes(o.value)).length;
all.checked = picked > 0 && picked === usable.length;
all.indeterminate = picked > 0 && picked < usable.length; // 半选:部分已选
all.disabled = off || (picked === usable.length && atMin); // 全选行同样受边界约束
};
effect(sync);
const body = h('div', { class: `ua-check-group ua-check-group-${dir}` }, ...(props.checkAll ? [h('label', { class: 'ua-check-row' }, all, '全选')] : []), ...rows);
return h('div', { class: 'ua-checkbox-group', role: 'group' }, body) as HTMLElement;
}
+1
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@@ -5,6 +5,7 @@ export { inputNumber } from './inputNumber.js';
export { textarea } from './textarea.js';
export { slider } from './slider.js';
export { checkbox } from './checkbox.js';
export { checkboxGroup } from './checkboxGroup.js';
export { switchButton } from './switch.js';
export { select } from './select.js';
export { menu } from './menu.js';
+19
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@@ -600,4 +600,23 @@ export interface WatermarkProps {
color?: string; // 颜色(CSS 串或令牌名);缺省取 --ua-color-text-muted 的实色
}
/*** 多选组选项 ***/
export interface CheckOption {
value: string; // 选项值
label: string; // 显示文案
disabled?: boolean; // 单项禁用:不可勾选,也不计入全选
}
/*** 多选组入参 ***/
export interface CheckboxGroupProps {
options: CheckOption[]; // 选项集合
value?: Signal<string[]>; // 选中值数组信号;不传则内部维护
min?: number; // 最少选几项:到下限后已选项禁用,防止取消
max?: number; // 最多选几项:到上限后未选项禁用
checkAll?: boolean; // 是否显示全选行(含半选);缺省 false
direction?: 'horizontal' | 'vertical'; // 排列方向;缺省 horizontal
disabled?: boolean | Signal<boolean>; // 整组禁用
onChange?: (values: string[]) => void; // 变更回调(传副本)
}
export type { ColumnDef, RowKey }; // 再导出常用内核类型,方便调用方