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Accordion

A vertically stacked set of interactive headings that each reveal an associated section of content.

Yes. It adheres to the WAI-ARIA design pattern.

vue
vue
<script setup lang="ts">
import { AccordionContent, AccordionHeader, AccordionItem, AccordionRoot, AccordionTrigger } from '@oku-ui/primitives'
import { Icon } from '@iconify/vue'

const accordionItems = [
  {
    value: 'item-1',
    title: 'Is it accessible?',
    content: 'Yes. It adheres to the WAI-ARIA design pattern.',
  },
  {
    value: 'item-2',
    title: 'Is it unstyled?',
    content: 'Yes. It\'s unstyled by default, giving you freedom over the look and feel.',
  },
  {
    value: 'item-3',
    title: 'Can it be animated?',
    content: 'Yes! You can use the transition prop to configure the animation.',
  },
]
</script>

<template>
  <AccordionRoot
    class="bg-mauve6 w-[300px] rounded-md shadow-[0_2px_10px] shadow-black/5"
    default-value="item-1"
    type="single"
    :collapsible="true"
  >
    <template
      v-for="item in accordionItems"
      :key="item.value"
    >
      <AccordionItem
        class="focus-within:shadow-mauve12 mt-px overflow-hidden first:mt-0 first:rounded-t last:rounded-b focus-within:relative focus-within:z-10 focus-within:shadow-[0_0_0_2px]"
        :value="item.value"
      >
        <AccordionHeader class="flex">
          <AccordionTrigger class="text-mauve12 shadow-mauve6 hover:bg-mauve2 flex h-[45px] flex-1 cursor-default items-center justify-between bg-white px-5 text-[15px] leading-none shadow-[0_1px_0] outline-none group">
            <span>{{ item.title }}</span>
            <Icon
              icon="radix-icons:chevron-down"
              class="text-indigo10 ease-[cubic-bezier(0.87,_0,_0.13,_1)] transition-transform duration-300 group-data-[state=open]:rotate-180"
              aria-label="Expand/Collapse"
            />
          </AccordionTrigger>
        </AccordionHeader>
        <AccordionContent class="text-mauve12 bg-mauve2 data-[state=open]:animate-slideDown data-[state=closed]:animate-slideUp overflow-hidden text-[15px]">
          <div class="px-5 py-4">
            {{ item.content }}
          </div>
        </AccordionContent>
      </AccordionItem>
    </template>
  </AccordionRoot>
</template>

Features

  • Full keyboard navigation.
  • Supports horizontal/vertical orientation.
  • Supports Right to Left direction.
  • Can expand one or multiple items.
  • Can be controlled or uncontrolled.

Installation

Install the component from your command line.

sh
sh
$ npm add @oku-ui/primitives

Anatomy

Import all parts and piece them together.

vue
vue
<script setup>
import { AccordionContent, AccordionHeader, AccordionItem, AccordionRoot, AccordionTrigger } from '@oku-ui/primitives'
</script>

<template>
  <AccordionRoot>
    <AccordionItem>
      <AccordionHeader>
        <AccordionTrigger />
      </AccordionHeader>
      <AccordionContent />
    </AccordionItem>
  </AccordionRoot>
</template>

API Reference

Root

Contains all the parts of an Accordion

PropDefaultType
collapsible
boolean
defaultValue
string | string[]
dir
'ltr' | 'rtl'

The language read direction.

disabled
boolean

Whether or not an accordion is disabled from user interaction.

orientation
'horizontal' | 'vertical'

The layout in which the Accordion operates.

type
'single' | 'multiple'
value
string | string[]
EmitPayload
update:value
[value: string | string[]]
Data AttributeValue
[data-orientation]"vertical" | "horizontal"

Item

Contains all the parts of a collapsible section.

PropDefaultType
disabled
boolean

Whether or not an accordion item is disabled from user interaction.

value*
string

A string value for the accordion item. All items within an accordion should use a unique value.

Data AttributeValue
[data-state]"open" | "closed"
[data-disabled]Present when disabled
[data-orientation]"vertical" | "horizontal"

Wraps an AccordionTrigger. Use the asChild prop to update it to the appropriate heading level for your page.

PropDefaultType
as
'h3'
object | AsTag
Data AttributeValue
[data-state]"open" | "closed"
[data-disabled]Present when disabled
[data-orientation]"vertical" | "horizontal"

Trigger

Toggles the collapsed state of its associated item. It should be nested inside of an AccordionHeader.

PropDefaultType
as
'button'
object | AsTag
Data AttributeValue
[data-state]"open" | "closed"
[data-disabled]Present when disabled
[data-orientation]"vertical" | "horizontal"

Content

Contains the collapsible content for an item.

PropDefaultType
forceMount
boolean

Used to force mounting when more control is needed. Useful when controlling animation with Vue animation libraries.

Data AttributeValue
[data-state]"open" | "closed"
[data-disabled]Present when disabled
[data-orientation]"vertical" | "horizontal"
CSS VariableDescription
--radix-accordion-content-width
The width of the content when it opens/closes
--radix-accordion-content-height
The height of the content when it opens/closes

Examples

Expanded by default

Use the defaultValue prop to define the open item by default.

vue
vue
<template>
  <AccordionRoot
    type="single"
    default-value="item-2"
  >
    <AccordionItem value="item-1">

    </AccordionItem>
    <AccordionItem value="item-2">

    </AccordionItem>
  </AccordionRoot>
</template>

Allow collapsing all items

Use the collapsible prop to allow all items to close.

vue
vue
<template>
  <AccordionRoot
    type="single"
    collapsible
  >
    <AccordionItem value="item-1">

    </AccordionItem>
    <AccordionItem value="item-2">

    </AccordionItem>
  </AccordionRoot>
</template>

Multiple items open at the same time

Set the type prop to multiple to enable opening multiple items at once.

vue
vue
<template>
  <AccordionRoot type="multiple">
    <AccordionItem value="item-1">

    </AccordionItem>
    <AccordionItem value="item-2">

    </AccordionItem>
  </AccordionRoot>
</template>

Rotated icon when open

You can add extra decorative elements, such as chevrons, and rotate it when the item is open.

vue
vue
// index.vue
<script setup>
import { AccordionContent, AccordionHeader, AccordionItem, AccordionRoot, AccordionTrigger } from '@oku-ui/primitives'
import { Icon } from '@iconify/vue'
import './styles.css'
</script>

<template>
  <AccordionRoot type="single">
    <AccordionItem value="item-1">
      <AccordionHeader>
        <AccordionTrigger class="AccordionTrigger">
          <span>Trigger text</span>
          <Icon
            icon="radix-icons:chevron-down"
            class="AccordionChevron"
          />
        </AccordionTrigger>
      </AccordionHeader>
      <AccordionContent></AccordionContent>
    </AccordionItem>
  </AccordionRoot>
</template>
css
css
/* styles.css */
.AccordionChevron {
  transition: transform 300ms;
}
.AccordionTrigger[data-state="open"] > .AccordionChevron {
  transform: rotate(180deg);
}

Horizontal orientation

Use the orientation prop to create a horizontal Accordion

vue
vue
<template>
  <AccordionRoot orientation="horizontal">
    <AccordionItem value="item-1">

    </AccordionItem>
    <AccordionItem value="item-2">

    </AccordionItem>
  </AccordionRoot>
</template>

Animating content size

Use the --radix-accordion-content-width and/or --radix-accordion-content-height CSS variables to animate the size of the content when it opens/closes:

vue
vue
// index.vue
<script setup>
import { AccordionContent, AccordionHeader, AccordionItem, AccordionRoot, AccordionTrigger } from '@oku-ui/primitives'
import './styles.css'
</script>

<template>
  <AccordionRoot type="single">
    <AccordionItem value="item-1">
      <AccordionHeader></AccordionHeader>
      <AccordionContent class="AccordionContent">

      </AccordionContent>
    </AccordionItem>
  </AccordionRoot>
</template>
css
css
/* styles.css */
.AccordionContent {
  overflow: hidden;
}
.AccordionContent[data-state="open"] {
  animation: slideDown 300ms ease-out;
}
.AccordionContent[data-state="closed"] {
  animation: slideUp 300ms ease-out;
}

@keyframes slideDown {
  from {
    height: 0;
  }
  to {
    height: var(--radix-accordion-content-height);
  }
}

@keyframes slideUp {
  from {
    height: var(--radix-accordion-content-height);
  }
  to {
    height: 0;
  }
}

Accessibility

Adheres to the Accordion WAI-ARIA design pattern.

Keyboard Interactions

KeyDescription
Space
When focus is on an AccordionTrigger of a collapsed section, expands the section.
Enter
When focus is on an AccordionTrigger of a collapsed section, expands the section.
Tab
Moves focus to the next focusable element.
Shift + Tab
Moves focus to the previous focusable element.
ArrowDown
Moves focus to the next AccordionTrigger when orientation is vertical.
ArrowUp
Moves focus to the previous AccordionTrigger when orientation is vertical.
ArrowRight
Moves focus to the next AccordionTrigger when orientation is horizontal.
ArrowLeft
Moves focus to the previous AccordionTrigger when orientation is horizontal.
Home
When focus is on an AccordionTrigger, moves focus to the start AccordionTrigger.
End
When focus is on an AccordionTrigger, moves focus to the last AccordionTrigger.