bo-loading-spinner

bo-loading-spinner provides an accessible progress indicator with optional status text.

Basic usage

<bo-loading-spinner loader-text="Loading data" />

Loading data

Props

Optional

Name	Type	Description
id	string	Unique identifier for the root element.
dataTestId	string	Deterministic data test id for end-to-end tests.
size	BoSize	The visual size of the spinner.
variant	BoVariant	Predefined color palette for the spinner.
customColor	string	Custom CSS color for the spinner (hex, rgb(a), oklch, or CSS var).
loaderText	string	Optional text describing the loading state.
textPosition	BoLoaderTextPosition	Placement of the text relative to the spinner.
ariaLive	AriaLive	Screen reader politeness for live updates.
ariaLabel	string	Accessible label describing the loading state.
ariaBusy	boolean	Marks the region as busy while loading.
customContainerCssClass	string	Additional CSS classes appended to the root element.
customSpinnerCssClass	string	Additional CSS classes appended to the spinner element.

Slots

Name	Description
default	Custom content to replace the label

Sizes

The spinner supports the same sizing scale as the rest of the design system via BoSize.

extra small

small

default

large

extra large

<bo-loading-spinner :size="BoSize.extra_small" loader-text="extra small" />
<bo-loading-spinner :size="BoSize.small" loader-text="small" />
<bo-loading-spinner :size="BoSize.default" loader-text="default" />
<bo-loading-spinner :size="BoSize.large" loader-text="large" />
<bo-loading-spinner :size="BoSize.extra_large" loader-text="extra large" />

Variants

Use variant to switch between predefined color palettes. For custom brand colors, pass a valid CSS color string to customColor.

primary

secondary

success

warning

danger

black

white

<bo-loading-spinner :variant="BoVariant.primary" loader-text="primary" />
<bo-loading-spinner :variant="BoVariant.secondary" loader-text="secondary" />
<bo-loading-spinner :variant="BoVariant.success" loader-text="success" />
<bo-loading-spinner :variant="BoVariant.warning" loader-text="warning" />
<bo-loading-spinner :variant="BoVariant.danger" loader-text="danger" />
<bo-loading-spinner :variant="BoVariant.black" loader-text="black" />
<bo-loading-spinner :variant="BoVariant.white" loader-text="white" />

Text positions

Adjust textPosition to control where the supporting text appears.

Top

Bottom

Before

After

<bo-loading-spinner :text-position="BoLoaderTextPosition.top" loader-text="Top" />
<bo-loading-spinner :text-position="BoLoaderTextPosition.bottom" loader-text="Bottom" />
<bo-loading-spinner :text-position="BoLoaderTextPosition.before" loader-text="Before" />
<bo-loading-spinner :text-position="BoLoaderTextPosition.after" loader-text="After" />

Custom text

Provide richer markup via the default slot. The slot replaces the loaderText prop entirely, allowing typography or iconography.

<bo-loading-spinner>
	<span>Syncing files…</span>
</bo-loading-spinner>

Syncing files…

Custom colors

You can customize the color of the ring by passing a valid CSS color value to the customColor prop.

CSS Variable

Hex Color

RGB Color

OKLCH Color

<bo-loading-spinner custom-color="--teal-500" loader-text="CSS Variable" />
<bo-loading-spinner custom-color="#ff6b6b" loader-text="Hex Color" />
<bo-loading-spinner custom-color="rgb(255, 107, 107)" loader-text="RGB Color" />
<bo-loading-spinner custom-color="oklch(0.7 0.15 180)" loader-text="OKLCH Color" />

Accessibility

• Use aria-live with the AriaLive enum when updates should be announced to screen readers.
• Pass aria-busy="true" while the surrounding region updates so assistive tech understands the pending state.
• Provide loaderText, an aria-label, or slot content so the loading state remains descriptive.

Interfaces and constants

bo-loading-spinner.ts

export interface BoLoadingSpinnerProps {
	id?: string;
	dataTestId?: string;
	size?: BoSize;
	variant?: BoVariant;
	customColor?: string;
	loaderText?: string;
	textPosition?: BoLoaderTextPosition;
	ariaLive?: AriaLive;
	ariaLabel?: string;
	ariaBusy?: boolean;
	customContainerCssClass?: string;
	customSpinnerCssClass?: string;
}

core/accessibility.ts

export enum AriaLive {
	polite = 'polite',
	assertive = 'assertive',
	off = 'off',
}

core/loader.ts

export enum BoVariant {
	primary = 'primary',
	secondary = 'secondary',
	success = 'success',
	warning = 'warning',
	danger = 'danger',
	dark = 'dark',
	light = 'light',
}

export enum BoLoaderTextPosition {
	top = 'top',
	bottom = 'bottom',
	before = 'before',
	after = 'after',
}

core/size.ts

export enum BoSize {
	extra_small = 'extra-small',
	small = 'small',
	default = 'default',
	large = 'large',
	extra_large = 'extra-large',
}