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<template>
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<div>
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<md>
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## 只展开当前父级菜单
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点击菜单，收起其他展开的所有菜单，保持菜单聚焦简洁。
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</md>
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<Menu
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mode="inline"
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:openKeys="openKeys"
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@openChange="onOpenChange"
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style="width: 256px"
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>
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<SubMenu key="sub1">
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<span slot="title"><Icon type="mail" /><span>Navigation One</span></span>
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<MenuItem key="1">Option 1</MenuItem>
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<MenuItem key="2">Option 2</MenuItem>
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<MenuItem key="3">Option 3</MenuItem>
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<MenuItem key="4">Option 4</MenuItem>
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</SubMenu>
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<SubMenu key="sub2">
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<span slot="title"><Icon type="appstore" /><span>Navigation Two</span></span>
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<MenuItem key="5">Option 5</MenuItem>
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<MenuItem key="6">Option 6</MenuItem>
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<SubMenu key="sub3" title="Submenu">
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<MenuItem key="7">Option 7</MenuItem>
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<MenuItem key="8">Option 8</MenuItem>
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</SubMenu>
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</SubMenu>
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<SubMenu key="sub4">
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<span slot="title"><Icon type="setting" /><span>Navigation Three</span></span>
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<MenuItem key="9">Option 9</MenuItem>
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<MenuItem key="10">Option 10</MenuItem>
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<MenuItem key="11">Option 11</MenuItem>
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<MenuItem key="12">Option 12</MenuItem>
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</SubMenu>
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</Menu>
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</div>
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</template>
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<script>
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import { Menu, Icon } from 'antd'
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const SubMenu = Menu.SubMenu
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const MenuItemGroup = Menu.ItemGroup
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const MenuItem = Menu.Item
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export default {
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data () {
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return {
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rootSubmenuKeys: ['sub1', 'sub2', 'sub4'],
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openKeys: ['sub1'],
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}
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},
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methods: {
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onOpenChange (openKeys) {
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const latestOpenKey = openKeys.find(key => this.openKeys.indexOf(key) === -1)
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if (this.rootSubmenuKeys.indexOf(latestOpenKey) === -1) {
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this.openKeys = openKeys
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} else {
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this.openKeys = latestOpenKey ? [latestOpenKey] : []
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}
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},
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},
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components: {
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Menu,
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Icon,
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SubMenu,
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MenuItemGroup,
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MenuItem,
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},
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}
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</script>
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