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* refactor: Using items * docs: replace with items * docs: deprecated demo * test: Update snapshot * docs: simple basic demo * test: coverage
89 lines
2.0 KiB
Markdown
89 lines
2.0 KiB
Markdown
---
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order: 9
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title:
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zh-CN: 新增和关闭页签
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en-US: Add & close tab
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---
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## zh-CN
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只有卡片样式的页签支持新增和关闭选项。使用 `closable={false}` 禁止关闭。
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## en-US
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Only card type Tabs support adding & closable. +Use `closable={false}` to disable close.
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```tsx
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import { Tabs } from 'antd';
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import React, { useRef, useState } from 'react';
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const initialItems = [
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{ label: 'Tab 1', children: 'Content of Tab 1', key: '1' },
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{ label: 'Tab 2', children: 'Content of Tab 2', key: '2' },
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{
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label: 'Tab 3',
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children: 'Content of Tab 3',
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key: '3',
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closable: false,
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},
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];
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const App: React.FC = () => {
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const [activeKey, setActiveKey] = useState(initialItems[0].key);
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const [items, setItems] = useState(initialItems);
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const newTabIndex = useRef(0);
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const onChange = (newActiveKey: string) => {
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setActiveKey(newActiveKey);
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};
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const add = () => {
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const newActiveKey = `newTab${newTabIndex.current++}`;
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const newPanes = [...items];
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newPanes.push({ label: 'New Tab', children: 'Content of new Tab', key: newActiveKey });
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setItems(newPanes);
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setActiveKey(newActiveKey);
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};
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const remove = (targetKey: string) => {
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let newActiveKey = activeKey;
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let lastIndex = -1;
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items.forEach((item, i) => {
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if (item.key === targetKey) {
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lastIndex = i - 1;
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}
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});
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const newPanes = items.filter(item => item.key !== targetKey);
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if (newPanes.length && newActiveKey === targetKey) {
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if (lastIndex >= 0) {
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newActiveKey = newPanes[lastIndex].key;
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} else {
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newActiveKey = newPanes[0].key;
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}
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}
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setItems(newPanes);
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setActiveKey(newActiveKey);
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};
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const onEdit = (targetKey: string, action: 'add' | 'remove') => {
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if (action === 'add') {
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add();
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} else {
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remove(targetKey);
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}
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};
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return (
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<Tabs
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type="editable-card"
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onChange={onChange}
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activeKey={activeKey}
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onEdit={onEdit}
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items={items}
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/>
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);
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};
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export default App;
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```
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