PettyUI/kobalte.dev-docs-core-components-tooltip.md at 8cfa75fe3ef7d1d174710ad685d10557a7276e5b

Mats Bosson 8cfa75fe3e Initial monorepo setup

2026-03-31 21:42:28 +07:00

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A popup that displays information related to an element when the element receives keyboard focus or the mouse hovers over it.

Import

Copyts
import { Tooltip } from "@kobalte/core/tooltip";
// or
import { Root, Trigger, ... } from "@kobalte/core/tooltip";
// or (deprecated)
import { Tooltip } from "@kobalte/core";

Copyts
import { Tooltip } from "@kobalte/core/tooltip";
// or
import { Root, Trigger, ... } from "@kobalte/core/tooltip";
// or (deprecated)
import { Tooltip } from "@kobalte/core";

Features

Exposed as a tooltip to assistive technology via ARIA.
Opens when the trigger is focused or hovered.
Closes when the trigger is activated or when pressing escape.
Only one tooltip shows at a time.
Labeling support for screen readers via aria-describedby.
Custom show and hide delay support.
Matches native tooltip behavior with delay on hover of first tooltip and no delay on subsequent tooltips.

Anatomy

The tooltip consists of:

Tooltip: The root container for a tooltip.
Tooltip.Trigger: The button that toggles the tooltip.
Tooltip.Portal: Portals its children into the body when the tooltip is open.
Tooltip.Content: Contains the content to be rendered when the tooltip is open.
Tooltip.Arrow: An optional arrow element to render alongside the tooltip.

Copytsx
<Tooltip>
	<Tooltip.Trigger />
	<Tooltip.Portal>
		<Tooltip.Content>
			<Tooltip.Arrow />
		</Tooltip.Content>
	</Tooltip.Portal>
</Tooltip>

Copytsx
<Tooltip>
	<Tooltip.Trigger />
	<Tooltip.Portal>
		<Tooltip.Content>
			<Tooltip.Arrow />
		</Tooltip.Content>
	</Tooltip.Portal>
</Tooltip>

Example

Trigger

index.tsxstyle.css

Copytsx
import { Tooltip } from "@kobalte/core/tooltip";
import "./style.css";

function App() {
  return (
    <Tooltip>
      <Tooltip.Trigger class="tooltip__trigger">Trigger</Tooltip.Trigger>
      <Tooltip.Portal>
        <Tooltip.Content class="tooltip__content">
          <Tooltip.Arrow />
          <p>Tooltip content</p>
        </Tooltip.Content>
      </Tooltip.Portal>
    </Tooltip>
  );
}

Copytsx
import { Tooltip } from "@kobalte/core/tooltip";
import "./style.css";

function App() {
  return (
    <Tooltip>
      <Tooltip.Trigger class="tooltip__trigger">Trigger</Tooltip.Trigger>
      <Tooltip.Portal>
        <Tooltip.Content class="tooltip__content">
          <Tooltip.Arrow />
          <p>Tooltip content</p>
        </Tooltip.Content>
      </Tooltip.Portal>
    </Tooltip>
  );
}

Usage

Default open

An initial, uncontrolled open value can be provided using the defaultOpen prop.

Copytsx
<Tooltip defaultOpen>...</Tooltip>

Copytsx
<Tooltip defaultOpen>...</Tooltip>

Controlled open

The open prop can be used to make the open state controlled. The onOpenChange event is fired when the user presses the trigger, close button or interact outside, and receives the new value.

Tooltip is not showing.

Trigger

Copytsx
import { createSignal } from "solid-js";

function ControlledExample() {
	const [open, setOpen] = createSignal(false);

	return (
		<>
			<p>Tooltip is {open() ? "showing" : "not showing"}.</p>
			<Tooltip open={open()} onOpenChange={setOpen}>
				<Tooltip.Trigger>Trigger</Tooltip.Trigger>
				<Tooltip.Portal>
					<Tooltip.Content>
						<Tooltip.Arrow />
						<p>Tooltip content</p>
					</Tooltip.Content>
				</Tooltip.Portal>
			</Tooltip>
		</>
	);
}

Copytsx
import { createSignal } from "solid-js";

function ControlledExample() {
	const [open, setOpen] = createSignal(false);

	return (
		<>
			<p>Tooltip is {open() ? "showing" : "not showing"}.</p>
			<Tooltip open={open()} onOpenChange={setOpen}>
				<Tooltip.Trigger>Trigger</Tooltip.Trigger>
				<Tooltip.Portal>
					<Tooltip.Content>
						<Tooltip.Arrow />
						<p>Tooltip content</p>
					</Tooltip.Content>
				</Tooltip.Portal>
			</Tooltip>
		</>
	);
}

Origin-aware animations

We expose a CSS custom property --kb-tooltip-content-transform-origin which can be used to animate the content from its computed origin.

Copycss
/* style.css */
.tooltip__content {
	transform-origin: var(--kb-tooltip-content-transform-origin);
	animation: contentHide 250ms ease-in forwards;
}

.tooltip__content[data-expanded] {
	animation: contentShow 250ms ease-out;
}

@keyframes contentShow {
	from {
		opacity: 0;
		transform: scale(0.96);
	}
	to {
		opacity: 1;
		transform: scale(1);
	}
}

@keyframes contentHide {
	from {
		opacity: 1;
		transform: scale(1);
	}
	to {
		opacity: 0;
		transform: scale(0.96);
	}
}

Copycss
/* style.css */
.tooltip__content {
	transform-origin: var(--kb-tooltip-content-transform-origin);
	animation: contentHide 250ms ease-in forwards;
}

.tooltip__content[data-expanded] {
	animation: contentShow 250ms ease-out;
}

@keyframes contentShow {
	from {
		opacity: 0;
		transform: scale(0.96);
	}
	to {
		opacity: 1;
		transform: scale(1);
	}
}

@keyframes contentHide {
	from {
		opacity: 1;
		transform: scale(1);
	}
	to {
		opacity: 0;
		transform: scale(0.96);
	}
}

API Reference

Tooltip is equivalent to the Root import from @kobalte/core/tooltip (and deprecated Tooltip.Root).

Prop	Description
open	`boolean` The controlled open state of the tooltip.
defaultOpen	`boolean` The default open state when initially rendered. Useful when you do not need to control the open state.
onOpenChange	`(open: boolean) => void` Event handler called when the open state of the tooltip changes.
triggerOnFocusOnly	`boolean` Whether to open the tooltip only when the trigger is focused. By default, opens for both focus and hover.
openDelay	`number` The duration from when the mouse enters the trigger until the tooltip opens.
skipDelayDuration	`number` The duration from when the mouse leaves the trigger or content and moves to another tooltip trigger or content without incurring another openDelay
closeDelay	`number` The duration from when the mouse leaves the trigger or content until the tooltip closes.
ignoreSafeArea	`boolean` Whether to close the tooltip even if the user cursor is inside the safe area between the trigger and tooltip.
id	`string` A unique identifier for the component. The id is used to generate id attributes for nested components. If no id prop is provided, a generated id will be used.
forceMount	`boolean` Used to force mounting the tooltip (portal and content) when more control is needed. Useful when controlling animation with SolidJS animation libraries.

Tooltip also accepts the following props to customize the placement of the Tooltip.Content.

Prop	Description
getAnchorRect	`(anchor?: HTMLElement) => AnchorRect
placement	`Placement` The placement of the tooltip.
gutter	`number` The distance between the tooltip and the trigger/anchor element. By default, it's 0 plus half of the arrow offset, if it exists.
shift	`number` The skidding of the tooltip along the anchor element.
flip	`boolean
slide	`boolean` Whether the tooltip should slide when it overflows.
overlap	`boolean` Whether the tooltip can overlap the anchor element when it overflows.
sameWidth	`boolean` Whether the tooltip should have the same width as the anchor element. This will be exposed to CSS as `--kb-popper-anchor-width`.
fitViewport	`boolean` Whether the tooltip should fit the viewport. If this is set to true, the tooltip content will have `maxWidth` and `maxHeight` set to the viewport size. This will be exposed to CSS as `--kb-popper-available-width` and `--kb-popper-available-height`.
hideWhenDetached	`boolean` Whether to hide the tooltip when the anchor element becomes occluded.
detachedPadding	`number` The minimum padding in order to consider the anchor element occluded.
arrowPadding	`number` The minimum padding between the arrow and the tooltip corner.
overflowPadding	`number` The minimum padding between the tooltip and the viewport edge. This will be exposed to CSS as `--kb-popper-overflow-padding`.

Tooltip.Trigger

Data attribute	Description
data-expanded	Present when the tooltip is open.
data-closed	Present when the tooltip is close.

Tooltip.Content and Tooltip.Arrow share the same data-attributes.

Tooltip.Content

The popper positioner will copy the same z-index as the Tooltip.Content.

Prop	Description
onEscapeKeyDown	`(event: KeyboardEvent) => void` Event handler called when the escape key is down. It can be prevented by calling `event.preventDefault`.
onPointerDownOutside	`(event: PointerDownOutsideEvent) => void` Event handler called when a pointer event occurs outside the bounds of the component. It can be prevented by calling `event.preventDefault`.

Tooltip.Arrow

Prop	Description
size	`number` The size of the arrow.

Rendered elements

Component	Default rendered element
`Tooltip`	none
`Tooltip.Trigger`	`button`
`Tooltip.Portal`	`Portal`
`Tooltip.Content`	`div`
`Tooltip.Arrow`	`div`

Accessibility

Keyboard Interactions

Key	Description
`Tab`	Opens/closes the tooltip without delay.
`Space`	When open, closes the tooltip without delay.
`Enter`	When open, closes the tooltip without delay.
`Esc`	When open, closes the tooltip without delay.

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10 KiB Raw Blame History

Tooltip