RangeControl

RangeControls are used to make selections from a range of incremental values.

Design guidelines

Anatomy

A RangeControl can contain the following elements:

1. Rail: The rail represents the entire surface area of the slider, from the minimum value selectable by the user to the maximum value selectable by the user. For left-to-right (LTR) languages, the minimum value appears on the far left, and the maximum value on the far right. For right-to-left (RTL) languages this orientation is reversed, with the minimum value on the far right and the maximum value on the far left.
2. Track: The track represents the portion of the rail from the minimum value to the currently selected value.
3. Thumb: The thumb slides along the track, displaying the selected value through its position.
4. Value entry field: The value entry field displays the currently selected, specific numerical value.
5. Icon (optional): An icon can be displayed before or after the slider.
6. Tick mark (optional): Tick marks represent predetermined values to which the user can move the slider.

Types

Continuous sliders

Continuous sliders allow users to select a value along a subjective range. They do not display the selected numeric value. Use them when displaying/editing the numeric value is not important, like volume.

Discrete sliders

Discrete sliders can be adjusted to a specific value by referencing its value entry field. Use them when it’s important to display/edit the numeric value, like text size.

Possible selections may be organized through the use of tick marks, which a thumb will snap to (or to which an input will round up or down).

Behavior

• Click and drag: The slider is controlled by clicking the thumb and dragging it.
• Click jump: The slider is controlled by clicking the track.
• Click and arrow: The slider is controlled by clicking the thumb, then using arrow keys to move it.
• Tab and arrow: The slider is controlled by using the tab key to select the thumb of the desired slider, then using arrow keys to move it.
• Value entry field: Discrete sliders have value entry fields. After a text entry is made, the slider position automatically updates to reflect the new value.
• Tick marks (Optional) Discrete sliders can use evenly spaced tick marks along the slider track, and the thumb will snap to them. Each tick mark should change the setting in increments that are discernible to the user.

Usage

RangeControls reflect a range of values along a track, from which users may select a single value. They are ideal for adjusting settings such as volume, opacity, or text size.

RangeControls can have icons on both ends of the track that reflect a range of values.

Immediate effects

Changes made with RangeControls are immediate, allowing a user to make adjustments until finding their preference. They shouldn’t be paired with settings that have delays in providing feedback.

Don’t
Don’t use RangeControls if the effect isn’t immediate.

Current state

RangeControls reflect the current state of the settings they control.

Values

A RangeControl with an editable numeric value

Editable numeric values: Editable numeric values allow users to set the exact value of a RangeControl. After setting a value, the thumb position is immediately updated to match the new value.

Don’t
RangeControls should only be used for choosing selections from a range of values (e.g., don’t use a RangeControl if there are only 2 values).

Don’t
RangeControls should provide the full range of choices available for the user to select from (e.g., don’t disable only part of a RangeControl).

Development guidelines

Usage

Render a RangeControl to make a selection from a range of incremental values.

import { useState } from 'react';
import { RangeControl } from '@wordpress/components';

const MyRangeControl = () => {
    const [ columns, setColumns ] = useState( 2 );

    return (
        <RangeControl
            __nextHasNoMarginBottom
            __next40pxDefaultSize
            label="Columns"
            value={ columns }
            onChange={ ( value ) => setColumns( value ) }
            min={ 2 }
            max={ 10 }
        />
    );
};

Props

The set of props accepted by the component will be specified below.
Props not included in this set will be applied to the input elements.

afterIcon: string|Function|Component|null

If this property is added, an Icon component will be rendered after the slider with the icon equal to afterIcon.

For more information on IconType see the Icon component.

• Required: No
• Platform: Web

allowReset: boolean

If this property is true, a button to reset the slider is rendered.

• Required: No
• Default: false
• Platform: Web | Mobile

beforeIcon: string|Function|Component|null

If this property is added, an Icon component will be rendered before the slider with the icon equal to beforeIcon.

For more information on IconType see the Icon component.

• Required: No
• Platform: Web

color: CSSProperties[‘color’]

CSS color string for the RangeControl wrapper.

• Required: No
• Platform: Web

currentInput: number

The current input to use as a fallback if value is currently undefined.

• Required: No
• Platform: Web

disabled: boolean

Disables the input, preventing new values from being applied.

• Required: No
• Platform: Web

help: string|Element

If this property is added, a help text will be generated using help property as the content.

• Required: No
• Platform: Web

hideLabelFromVision: boolean

Provides control over whether the label will only be visible to screen readers.

• Required: No

icon: string

An icon to be shown above the slider next to its container title.

• Required: No
• Platform: Mobile

initialPosition: number

The slider starting position, used when no value is passed. The initialPosition will be clamped between the provided min and max prop values.

• Required: No
• Platform: Web | Mobile

isShiftStepEnabled: boolean

Passed as a prop to the NumberControl component and is only applicable if withInputField is true. If true, while the number input has focus, pressing UP or DOWN along with the SHIFT key will change the value by the shiftStep value.

• Required: No

label: string

If this property is added, a label will be generated using label property as the content.

• Required: No
• Platform: Web | Mobile

marks: Array|boolean

Renders a visual representation of step ticks. Custom mark indicators can be provided by an Array.

Example:

const marks = [
    {
        value: 0,
        label: '0',
    },
    {
        value: 1,
        label: '1',
    },
    {
        value: 8,
        label: '8',
    },
    {
        value: 10,
        label: '10',
    },
];

const MyRangeControl() {
    return ( <RangeControl marks={ marks } min={ 0 } max={ 10 } step={ 1 } /> )
}

• Required: No
• Platform: Web

onBlur: FocusEventHandler< HTMLInputElement >

Callback for when RangeControl input loses focus.

• Required: No
• Platform: Web

onChange: ( value?: number ) => void

A function that receives the new value. The value will be less than max and more than min unless a reset (enabled by allowReset) has occurred. In which case the value will be either that of resetFallbackValue if it has been specified or otherwise undefined.

• Required: No
• Platform: Web | Mobile

onFocus: FocusEventHandler< HTMLInputElement >

Callback for when RangeControl input gains focus.

• Required: No
• Platform: Web

onMouseLeave: MouseEventHandler< HTMLInputElement >

Callback for when mouse exits the RangeControl.

• Required: No
• Platform: Web

onMouseMove: MouseEventHandler< HTMLInputElement >

Callback for when mouse moves within the RangeControl.

• Required: No
• Platform: Web

min: number

The minimum value allowed.

• Required: No
• Default: 0
• Platform: Web | Mobile

max: number

The maximum value allowed.

• Required: No
• Default: 100
• Platform: Web | Mobile

railColor: CSSProperties[ ‘color’ ]

CSS color string to customize the rail element’s background.

• Required: No
• Platform: Web

renderTooltipContent: ( value ) => value

A way to customize the rendered UI of the value. Example:

const customTooltipContent = value => `${value}%`

const MyRangeControl() {
    return (<RangeControl renderTooltipContent={ customTooltipContent } />)
}

• Required: No
• Platform: Web

resetFallbackValue: number

The value to revert to if the Reset button is clicked (enabled by allowReset)

• Required: No
• Platform: Web

separatorType: ‘none’ | ‘fullWidth’ | ‘topFullWidth’

Define if separator line under/above control row should be disabled or full width. By default it is placed below excluding underline the control icon.

• Required: No
• Platform: Mobile

shiftStep: number

Passed as a prop to the NumberControl component and is only applicable if withInputField and isShiftStepEnabled are both true and while the number input has focus. Acts as a multiplier of step.

• Required: No

showTooltip: boolean

Forcing the Tooltip UI to show or hide. This is overridden to false when step is set to the special string value any.

• Required: No
• Platform: Web

step: number | ‘any’

The minimum amount by which value changes. It is also a factor in validation as value must be a multiple of step (offset by min) to be valid. Accepts the special string value any that voids the validation constraint and overrides both withInputField and showTooltip props to false.

• Required: No
• Platform: Web

trackColor: CSSProperties[ ‘color’ ]

CSS color string to customize the track element’s background.

• Required: No
• Platform: Web

type: string

Define if the value selection should present a stepper control or a slider control in the bottom sheet on mobile. To use the stepper set the type value as stepper. Defaults to slider if no option is provided.

• Required: No
• Platform: Mobile

value: number

The current value of the range slider.

• Required: No
• Platform: Web | Mobile

withInputField: boolean

Determines if the input number field will render next to the RangeControl. This is overridden to false when step is set to the special string value any.

• Required: No
• Platform: Web

__next40pxDefaultSize: boolean

Start opting into the larger default height that will become the default size in a future version.

• Required: No
• Default: false

__nextHasNoMarginBottom: boolean

Start opting into the new margin-free styles that will become the default in a future version.

• Required: No
• Default: false

Related components

• To collect a numerical input in a text field, use the TextControl component.