<markdown>
# 压缩菜单

可以让垂直菜单随着边栏压缩。使用 `collapsed` 属性控制菜单状态。必需设定 `collapsed-width` 来确保菜单正常显示。除此之外还有一些其他和压缩有关的属性：`icon-size`、`collapsed-icon-size`。详细信息参考页面底下的 API 文档。
</markdown>

<script lang="ts" setup>
import type { MenuOption } from 'naive-ui'
import type { Component } from 'vue'
import {
  BookOutline as BookIcon,
  PersonOutline as PersonIcon,
  WineOutline as WineIcon
} from '@vicons/ionicons5'
import { NIcon } from 'naive-ui'
import { h, ref } from 'vue'

function renderIcon(icon: Component) {
  return () => h(NIcon, null, { default: () => h(icon) })
}

const menuOptions: MenuOption[] = [
  {
    label: '且听风吟',
    key: 'hear-the-wind-sing',
    icon: renderIcon(BookIcon)
  },
  {
    label: '1973年的弹珠玩具',
    key: 'pinball-1973',
    icon: renderIcon(BookIcon),
    disabled: true,
    children: [
      {
        label: '鼠',
        key: 'rat'
      }
    ]
  },
  {
    label: '寻羊冒险记',
    key: 'a-wild-sheep-chase',
    disabled: true,
    icon: renderIcon(BookIcon)
  },
  {
    label: '舞，舞，舞',
    key: 'dance-dance-dance',
    icon: renderIcon(BookIcon),
    children: [
      {
        type: 'group',
        label: '人物',
        key: 'people',
        children: [
          {
            label: '叙事者',
            key: 'narrator',
            icon: renderIcon(PersonIcon)
          },
          {
            label: '羊男',
            key: 'sheep-man',
            icon: renderIcon(PersonIcon)
          }
        ]
      },
      {
        label: '饮品',
        key: 'beverage',
        icon: renderIcon(WineIcon),
        children: [
          {
            label: '威士忌',
            key: 'whisky'
          }
        ]
      },
      {
        label: '食物',
        key: 'food',
        children: [
          {
            label: '三明治',
            key: 'sandwich'
          }
        ]
      },
      {
        label: '过去增多，未来减少',
        key: 'the-past-increases-the-future-recedes'
      }
    ]
  }
]

const activeKey = ref<string | null>(null)
const collapsed = ref(true)
</script>

<template>
  <n-space vertical>
    <n-switch v-model:value="collapsed" />
    <n-layout has-sider>
      <n-layout-sider
        bordered
        collapse-mode="width"
        :collapsed-width="64"
        :width="240"
        :collapsed="collapsed"
        show-trigger
        @collapse="collapsed = true"
        @expand="collapsed = false"
      >
        <n-menu
          v-model:value="activeKey"
          :collapsed="collapsed"
          :collapsed-width="64"
          :collapsed-icon-size="22"
          :options="menuOptions"
        />
      </n-layout-sider>
      <n-layout>
        <span>内容</span>
      </n-layout>
    </n-layout>
  </n-space>
</template>
