<markdown>
# 自定义选项渲染

经过了很久的思考，我决定放弃支持 slot API。当然，还是提供自定义渲染选项的方式。(例子中使用了 `render-label` 属性，但是你可以直接使用 `option` 的 `style` 或 `class` 选项)
</markdown>

<script lang="ts" setup>
import type { SelectGroupOption, SelectOption } from 'naive-ui'
import type { VNodeChild } from 'vue'
import { MdMusicalNote as MusicIcon } from '@vicons/ionicons4'
import { NIcon } from 'naive-ui'
import { h } from 'vue'

const options: Array<SelectOption | SelectGroupOption> = [
  {
    type: 'group',
    label: 'Rubber Soul',
    key: 'Rubber Soul Album',
    children: [
      {
        label: 'Everybody\'s Got Something to Hide Except Me and My Monkey',
        value: 'song0',
        disabled: true
      },
      {
        label: 'Drive My Car',
        value: 'song1',
        style: {
          color: 'red'
        }
      },
      {
        label: 'Norwegian Wood',
        value: 'song2'
      },
      {
        label: 'You Won\'t See',
        value: 'song3',
        disabled: true
      },
      {
        label: 'Nowhere Man',
        value: 'song4'
      },
      {
        label: 'Think For Yourself',
        value: 'song5'
      },
      {
        label: 'The Word',
        value: 'song6'
      },
      {
        label: 'Michelle',
        value: 'song7',
        disabled: true
      },
      {
        label: 'What goes on',
        value: 'song8'
      },
      {
        label: 'Girl',
        value: 'song9'
      },
      {
        label: 'I\'m looking through you',
        value: 'song10'
      },
      {
        label: 'In My Life',
        value: 'song11'
      },
      {
        label: 'Wait',
        value: 'song12'
      }
    ]
  },
  {
    type: 'group',
    label: 'Let It Be',
    key: 'Let It Be Album',
    children: [
      {
        label: 'Two Of Us',
        value: 'Two Of Us'
      },
      {
        label: 'Dig A Pony',
        value: 'Dig A Pony'
      },
      {
        label: 'Across The Universe',
        value: 'Across The Universe'
      },
      {
        label: 'I Me Mine',
        value: 'I Me Mine'
      },
      {
        label: 'Dig It',
        value: 'Dig It'
      },
      {
        label: 'Let It Be',
        value: 'Let It Be'
      },
      {
        label: 'Maggie Mae',
        value: 'Maggie Mae'
      },
      {
        label: 'I\'ve Got A Feeling',
        value: 'I\'ve Got A Feeling'
      },
      {
        label: 'One After 909',
        value: 'One After 909'
      },
      {
        label: 'The Long And Winding Road',
        value: 'The Long And Winding Road'
      },
      {
        label: 'For You Blue',
        value: 'For You Blue'
      },
      {
        label: 'Get Back',
        value: 'Get Back'
      }
    ]
  }
]

function renderLabel(option: SelectOption): VNodeChild {
  if (option.type === 'group')
    return `${option.label}(Cool!)`
  return [
    h(
      NIcon,
      {
        style: {
          verticalAlign: '-0.15em',
          marginRight: '4px'
        }
      },
      {
        default: () => h(MusicIcon)
      }
    ),
    option.label as string
  ]
}
</script>

<template>
  <n-select :options="options" :render-label="renderLabel" />
</template>
