Slider

An input where the user selects a value from within a given range.

TailwindCSSCSS

<script setup lang="ts">
import { ref } from 'vue'
import { SliderRange, SliderRoot, SliderThumb, SliderTrack } from '@oku-ui/primitives'

const sliderValue = ref([50])
</script>

<template>
  <SliderRoot
    v-model="sliderValue"
    class="relative flex items-center select-none touch-none w-[200px] h-5"
    :max="100"
    :step="1"
  >
    <SliderTrack class="bg-blackA10 relative grow rounded-full h-[3px]">
      <SliderRange class="absolute bg-white rounded-full h-full" />
    </SliderTrack>
    <SliderThumb
      class="block w-5 h-5 bg-white shadow-[0_2px_10px] shadow-blackA7 rounded-[10px] hover:bg-violet3 focus:outline-none focus:shadow-[0_0_0_5px] focus:shadow-blackA8"
      aria-label="Volume"
    />
  </SliderRoot>
</template>

Features

• Can be controlled or uncontrolled.
• Supports multiple thumbs.
• Supports a minimum value between thumbs.
• Supports touch or click on track to update value.
• Supports Right to Left direction.
• Full keyboard navigation.

Installation

Install the component from your command line.

$ npm add @oku-ui/primitives

Anatomy

Import all parts and piece them together.

<script setup>
import { SliderRange, SliderRoot, SliderThumb, SliderTrack } from '@oku-ui/primitives'
</script>

<template>
  <SliderRoot>
    <SliderTrack>
      <SliderRange />
    </SliderTrack>
    <SliderThumb />
  </SliderRoot>
</template>

API Reference

Root

Contains all the parts of a slider. It will render an input for each thumb when used within a form to ensure events propagate correctly.

Prop	Default	Type
as	'div'	object | AsTag
defaultValue		number[]
dir		'ltr' | 'rtl'
disabled		boolean
inverted		boolean
max		number
min		number
minStepsBetweenThumbs		number
name		string
orientation		'horizontal' | 'vertical'
step		number
value		number[]

Emit	Payload
update:value	[value: number[]]
valueCommit	[value: number[]]

Data Attribute	Value
[data-disabled]	Present when disabled
[data-orientation]	"vertical" | "horizontal"

Track

The track that contains the SliderRange.

Prop	Default	Type
as	'div'	object | AsTag

Data Attribute	Value
[data-disabled]	Present when disabled
[data-orientation]	"vertical" | "horizontal"

Range

The range part. Must live inside SliderTrack.

Prop	Default	Type
as	'div'	object | AsTag

Data Attribute	Value
[data-disabled]	Present when disabled
[data-orientation]	"vertical" | "horizontal"

Thumb

A draggable thumb. You can render multiple thumbs.

Prop	Default	Type
as	'div'	object | AsTag
name		string

Data Attribute	Value
[data-disabled]	Present when disabled
[data-orientation]	"vertical" | "horizontal"

Examples

Vertical orientation

Use the orientation prop to create a vertical slider.

// index.vue
<script setup>
import { SliderRange, SliderRoot, SliderThumb, SliderTrack } from '@oku-ui/primitives'
</script>

<template>
  <SliderRoot
    class="SliderRoot"
    :default-value="[50]"
    orientation="vertical"
  >
    <SliderTrack class="SliderTrack">
      <SliderRange class="SliderRange" />
    </SliderTrack>
    <SliderThumb class="SliderThumb" />
  </SliderRoot>
</template>

/* styles.css */
.SliderRoot {
  position: relative;
  display: flex;
  align-items: center;
}
.SliderRoot[data-orientation="vertical"] {
  flex-direction: column;
  width: 20px;
  height: 100px;
}

.SliderTrack {
  position: relative;
  flex-grow: 1;
  background-color: grey;
}
.SliderTrack[data-orientation="vertical"] {
  width: 3px;
}

.SliderRange {
  position: absolute;
  background-color: black;
}
.SliderRange[data-orientation="vertical"] {
  width: 100%;
}

.SliderThumb {
  display: block;
  width: 20px;
  height: 20px;
  background-color: black;
}

Create a range

Add multiple thumbs and values to create a range slider.

// index.vue
<script setup>
import { SliderRange, SliderRoot, SliderThumb, SliderTrack } from '@oku-ui/primitives'
</script>

<template>
  <SliderRoot :default-value="[25, 75]">
    <SliderTrack>
      <SliderRange />
    </SliderTrack>
    <SliderThumb />
    <SliderThumb />
  </SliderRoot>
</template>

Define step size

Use the step prop to increase the stepping interval.

// index.vue
<script setup>
import { SliderRange, SliderRoot, SliderThumb, SliderTrack } from '@oku-ui/primitives'
</script>

<template>
  <SliderRoot
    :default-value="[50]"
    :step="10"
  >
    <SliderTrack>
      <SliderRange />
    </SliderTrack>
    <SliderThumb />
  </SliderRoot>
</template>

Prevent thumb overlap

Use minStepsBetweenThumbs to avoid thumbs with equal values.

// index.vue
<script setup>
import { SliderRange, SliderRoot, SliderThumb, SliderTrack } from '@oku-ui/primitives'
</script>

<template>
  <SliderRoot
    :default-value="[25, 75]"
    :step="10"
    :min-steps-between-thumbs="1"
  >
    <SliderTrack>
      <SliderRange />
    </SliderTrack>
    <SliderThumb />
    <SliderThumb />
  </SliderRoot>
</template>

Accessibility

Adheres to the Slider WAI-ARIA design pattern.

Keyboard Interactions

Key	Description
ArrowRight	Increments/decrements by the step value depending on orientation.
ArrowLeft	Increments/decrements by the step value depending on orientation.
ArrowUp	Increases the value by the step amount.
ArrowDown	Decreases the value by the step amount.
PageUp	Increases the value by a larger step.
PageDown	Decreases the value by a larger step.
Shift + ArrowUp	Increases the value by a larger step.
Shift + ArrowDown	Decreases the value by a larger step.
Home	Sets the value to its minimum.
End	Sets the value to its maximum.

Custom APIs

Create your own API by abstracting the primitive parts into your own component.

Abstract all parts

This example abstracts all of the Slider parts so it can be used as a self closing element.

Usage

<script setup lang="ts">
import { Slider } from './your-slider'
</script>

<template>
  <Slider :default-value="[25]" />
</template>

Implementation

// your-slider.ts
export { default as Slider } from 'Slider.vue'

 <!-- Slider.vue -->
<script setup lang="ts">
import { SlideRoot, SliderRange, type SliderRootEmits, type SliderRootProps, SliderThumb, SliderTrack, useForwardPropsEmits } from '@oku-ui/primitives'

const props = defineProps<SliderRootProps>()
const emits = defineEmits<SliderRootEmits>()

const forward = useForwardPropsEmits(props, emits)
</script>

<template>
  <SliderRoot v-bind="forward">
    <SliderTrack>
      <SliderRange />
    </SliderTrack>

    <SliderThumb
      v-for="(_, i) in value"
      :key="i"
    />
  </SliderRoot>
</template>

Caveats

Mouse events are not fired

Because of a limitation we faced during implementation, the following example won't work as expected and the @mousedown and @mousedown event handlers won't be fired:

<SliderRoot
  @mousedown="() => { console.log('onMouseDown')  }"
  @mouseup="() => { console.log('onMouseUp')  }"
>
  …
</SliderRoot>

We recommend using pointer events instead (eg. @pointerdown, @pointerup). Regardless of the above limitation, these events are better suited for cross-platform/device handling as they are fired for all pointer input types (mouse, touch, pen, etc.).