Spinner

A spinner lets the user know that something is processing or progressing.

Anatomy

1. Progress circle - the circle spins to convey that something is processing and fills clockwise to convey progress toward completion.
2. Label - a description of what is processing or progressing.

Usage

• Use a spinner when there will be a delay of more than 1 second in loading or completing an action.
• A spinner can be used both when the amount of time is determined and when it is indeterminate.
• If an application is loading, then the spinner will display and the user will be blocked from interacting with the application until it is loaded.
• You can also use a progress bar.

Do

• Do use only 1 spinner on the screen at a time.
• For buttons with spinners, the button should always be disabled until the action completes and the spinner no longer displays on the button.

Don't

• Don’t use a spinner for an immediate process (less than 1 second); nothing should display in that situation.
• Don’t use a spinner if most of the application can load very quickly except for some text or data elements; use a skeleton instead.

Indeterminate vs. Determinate

The spinner is in "indeterminate" mode if it does not have a set value. This conveys to users that something is processing without communicating how close it is to being complete.

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When a spinner does have a set value, it is in "determinate" mode. This gives the user an estimate of the percentage of time remaining until completion.

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React API

We expose one component for the spinner API, the Spinner.

Related concepts

• HTML element: <progress>
• DOM interface: HTMLProgressElement
• ARIA role: progressbar

Spinner

The Spinner component extends the React.ComponentPropsWithoutRef<'div'> interface.

import { Spinner } from '@wwnds/react';

Live Editor

/* set progress to a value between 0 and 1 to make determinate */
<Spinner label="Loading..." progress={undefined} />

Result

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Name	Description	Type
labelPosition	Where the label should be positioned relative to the spinner.	"right" | "bottom"
color	The spinner's color, restricted to system colors.	SystemColors
size	The width and height of the spinner. A number value will be interpreted as pixels. A string value should include its unit (e.g., 2rem).	string | number
strokeWidth	The width of the spinner circle. Default is 4.	number
progress	Indicates how much of the task has been completed.	number
max	Describes how much work is required to complete the progress. If defined, it must be greater than 0 and be a valid floating point number. The default is 1.	number
label	The progress bar's label describes what is progressing. It is required and recommended to be visible.	string
hideLabel	Indicates that the label should not be visible. Note that the label will still be accessible to assistive technologies even when it is not visible.	boolean
baseName	The base class name according to BEM conventions.	string
labelClass	The className for the progress indicator's label. Default is ${baseName}__label.	string