iter(g105): 标签页支持可关闭页签

This commit is contained in:
HIsheR
2026-10-26 13:56:56 +08:00
parent 1132220a23
commit f398f09ab2
9 changed files with 141 additions and 26 deletions
+22 -9
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@@ -1,14 +1,14 @@
import { effect, h } from '@ui-arch/frame';
import type { TabsProps } from './types.js';
import type { TabItem, TabsProps } from './types.js';
/*** 标签页:active 信号双向绑定 + 滑动指示条 + 方向键环形导航;内容由调用方按 active 派生 ***/
/*** 标签页:active 信号双向绑定 + 滑动指示条 + 方向键环形导航;closable 页签带关闭按钮(聚焦后 Delete 亦可关) ***/
export function tabs(props: TabsProps): HTMLElement {
// —— 状态集中声明 ——
const buttons: HTMLButtonElement[] = []; // 页签按钮,顺序与 tabs 一致
const buttons: HTMLButtonElement[] = []; // 页签按钮,顺序与 tabs 一致(键盘导航与激活态都按它走)
const indicator = h('span', { class: 'ua-tabs-indicator' });
const head = h('div', { class: 'ua-tabs-head', role: 'tablist', 'aria-label': '标签页' }, indicator);
/*** 同步激活态与指示条几何位置 ***/
/*** 同步激活态与指示条几何位置:量外壳而非按钮,可关闭页签的指示条才会盖住关闭按钮 ***/
const sync = () => {
const value = props.active?.();
for (const btn of buttons) {
@@ -16,13 +16,19 @@ export function tabs(props: TabsProps): HTMLElement {
btn.classList.toggle('ua-tab-active', on);
btn.setAttribute('aria-selected', String(on));
btn.tabIndex = on ? 0 : -1; // 漫游 tabindex:仅激活页签可 Tab 聚焦
if (on) {
indicator.style.left = `${btn.offsetLeft}px`;
indicator.style.width = `${btn.offsetWidth}px`;
}
if (!on) continue; // 卫语句:只有激活项需要摆指示条
const wrap = btn.parentElement ?? btn;
indicator.style.left = `${wrap.offsetLeft}px`;
indicator.style.width = `${wrap.offsetWidth}px`;
}
};
/*** 关闭页签:只回调,数据由调用方移除后重绘,组件不自己改 tabs 数组 ***/
const closeTab = (tab: TabItem, e: Event): void => {
e.stopPropagation(); // 关闭按钮是页签按钮的兄弟节点,显式阻断以防外壳级监听误触
props.onClose?.(tab.value);
};
for (const tab of props.tabs) {
const btn = h('button', { class: 'ua-tab', role: 'tab', type: 'button' }, tab.label) as HTMLButtonElement;
btn.dataset.value = tab.value;
@@ -33,8 +39,15 @@ export function tabs(props: TabsProps): HTMLElement {
if (props.active) props.active(tab.value); // 用户切换写回信号
props.onChange?.(tab.value);
});
btn.addEventListener('keydown', (e: KeyboardEvent) => {
if (e.key !== 'Delete' || !tab.closable) return; // 卫语句:只接管可关闭页签的 Delete
e.preventDefault();
props.onClose?.(tab.value); // 键盘等价:不必伸手去点 ×
});
const wrap = h('span', { class: 'ua-tab-item', role: 'presentation' }, btn); // 外壳只做布局,tab 语义仍在按钮上
if (tab.closable) wrap.append(h('button', { type: 'button', class: 'ua-tab-close', 'aria-label': `关闭 ${tab.label}`, onClick: (e: Event) => closeTab(tab, e) }, '×'));
buttons.push(btn);
head.append(btn);
head.append(wrap);
}
head.addEventListener('keydown', (e: KeyboardEvent) => {
+7 -1
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@@ -324,11 +324,17 @@ export interface ProgressProps {
variant?: 'default' | 'success' | 'warning' | 'danger'; // 填充语义色;缺省 default(满格自动切 success)
}
/*** 页签项:通用选项 + 可关闭开关 ***/
export interface TabItem extends OptionItem {
closable?: boolean; // 是否显示关闭按钮(聚焦后 Delete 同样可关);缺省不可关
}
/*** 标签页入参 ***/
export interface TabsProps {
tabs: OptionItem[]; // 页签列表
tabs: TabItem[]; // 页签列表
active?: Signal<string>; // 当前激活页签的 value 信号,双向绑定
onChange?: (value: string) => void; // 切换回调
onClose?: (value: string) => void; // 关闭页签回调:组件不自行移除,凭 value 从数据源里摘掉
}
/*** 弹窗入参 ***/
+16 -4
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@@ -38,7 +38,7 @@
"pagination(props):独立分页器,page 信号双向绑定,页码过多折叠省略号,首末页禁用翻页,jumpable 时末尾可输入页码直接跳转,键盘可达;pageSizes 可切每页条数",
"spinner(props):加载指示器,size 控制直径",
"progress(props):进度条,value 信号驱动 0-100(满格切 success 色);不传 value 退化为不确定态无限往复",
"tabs(props):标签页,active 信号双向绑定,滑动指示条 + 方向键环形导航,支持禁用页签",
"tabs(props):标签页,active 信号双向绑定,滑动指示条 + 方向键环形导航,支持禁用页签;页签项 closable 时带关闭按钮(聚焦后 Delete 同样可关),关闭只回调 onClose 由调用方摘数据",
"stepper(props):步骤条,done/current/upcoming 三态,active 信号双向绑定,clickable 时已完成步骤可回跳",
"rate(props):评分星标,value 信号双向绑定,hover 预览移出还原,键盘方向键调节,max 可配",
"empty(props):空状态占位,title/description 可选,action 放操作区",
@@ -1175,9 +1175,9 @@
"props": [
{
"n": "tabs",
"t": "OptionItem[]",
"t": "TabItem[]",
"r": 1,
"d": "页签列表,每项 { value, label }"
"d": "页签列表,每项 { value, label, disabled?, closable? }"
},
{
"n": "active",
@@ -1189,13 +1189,25 @@
"t": "(value: string) => void",
"k": 1,
"d": "切换回调"
},
{
"n": "onClose",
"t": "(value: string) => void",
"k": 1,
"d": "关闭页签回调:组件不自行移除,凭 value 从数据源里摘掉后重绘"
},
{
"n": "closable",
"t": "boolean",
"d": "页签项上的开关:true 时渲染关闭按钮(×),关闭按钮不进 Tab 序但可用鼠标点;缺省不可关"
}
],
"example": "const tab = signal('a'); tabs({ tabs: [{ value: 'a', label: '概览' }, { value: 'b', label: '明细', disabled: true }], active: tab })",
"example": "const tab = signal('a'); tabs({ tabs: [{ value: 'a', label: '概览', closable: true }, { value: 'b', label: '明细', disabled: true }], active: tab, onClose: (v) => toast.info(`关闭 ${v}`) })",
"steps": [
"创建信号 tab = signal('a'),初值为默认页签",
"tabs 只渲染页签头;页签内容用响应式函数按信号切换,如 () => tab() === 'a' ? panelA : panelB",
"点击或方向键(←→ 环形)、Home/End(直达首/末页签)切换,滑动指示条自动跟随;disabled: true 的页签置灰不可点",
"需要可关闭页签时给该项加 closable: true,× 或聚焦后按 Delete 触发 onClose(value);组件不改数据源,调用方从数组里摘掉该项再重绘",
"键盘可访问:Tab 聚焦激活页签,←→ 在启用页签间环形移动,Home/End 跳首个/末个启用页签"
]
},
+41
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@@ -1461,6 +1461,47 @@ button.ua-step-dot:hover {
color: var(--ua-color-accent);
font-weight: 500;
}
.ua-tab-item {
position: relative;
display: inline-flex;
align-items: center;
}
.ua-tab-close {
display: inline-flex;
align-items: center;
justify-content: center;
width: 16px;
height: 16px;
margin-left: -4px;
padding: 0;
border: none;
border-radius: 50%;
background: none;
color: var(--ua-color-text-muted);
font-size: var(--ua-font-size-md);
line-height: 1;
cursor: pointer;
opacity: 0;
transition: opacity 0.15s, background-color 0.15s, color 0.15s;
}
.ua-tab-item:hover .ua-tab-close,
.ua-tab-item:focus-within .ua-tab-close {
opacity: 1;
}
.ua-tab-close:focus-visible {
opacity: 1;
outline: 2px solid var(--ua-color-accent);
outline-offset: 1px;
}
.ua-tab-close:hover {
color: var(--ua-color-text);
background: color-mix(in srgb, var(--ua-color-accent) 12%, transparent);
}
@media (hover: none) {
.ua-tab-close {
opacity: 1;
}
}
.ua-tabs-indicator {
position: absolute;
bottom: -1px;