Link Preview

Displays a summarized preview of a linked content's details or information.

	<script lang="ts">
  import { Avatar, LinkPreview } from "bits-ui";
  import CalendarBlank from "phosphor-svelte/lib/CalendarBlank";
  import MapPin from "phosphor-svelte/lib/MapPin";
 
  let loadingStatusTrigger: Avatar.RootProps["loadingStatus"] =
    $state("loading");
  let loadingStatusContent: Avatar.RootProps["loadingStatus"] =
    $state("loading");
</script>
 
<LinkPreview.Root>
  <LinkPreview.Trigger
    href="https://github.com/sveltejs"
    target="_blank"
    rel="noreferrer noopener"
    class="rounded-sm underline-offset-4 hover:underline focus-visible:outline-2 focus-visible:outline-offset-8 focus-visible:outline-black"
  >
    <Avatar.Root
      bind:loadingStatus={loadingStatusTrigger}
      class="h-12 w-12 rounded-full border {loadingStatusTrigger === 'loaded'
        ? 'border-foreground'
        : 'border-transparent'} bg-muted text-[17px] font-medium uppercase text-muted-foreground"
    >
      <div
        class="flex h-full w-full items-center justify-center overflow-hidden rounded-full border-2 border-transparent"
      >
        <Avatar.Image src="/avatar-1.png" alt="@huntabyte" />
        <Avatar.Fallback class="border border-muted">HB</Avatar.Fallback>
      </div>
    </Avatar.Root>
  </LinkPreview.Trigger>
  <LinkPreview.Content
    class="w-[331px] rounded-xl border border-muted bg-background p-[17px] shadow-popover"
    sideOffset={8}
  >
    <div class="flex space-x-4">
      <Avatar.Root
        bind:loadingStatus={loadingStatusContent}
        class="h-12 w-12 rounded-full border {loadingStatusContent === 'loaded'
          ? 'border-foreground'
          : 'border-transparent'} bg-muted text-[17px] font-medium uppercase text-muted-foreground"
      >
        <div
          class="flex h-full w-full items-center justify-center overflow-hidden rounded-full border-2 border-transparent"
        >
          <Avatar.Image src="/avatar-1.png" alt="@huntabyte" />
          <Avatar.Fallback class="border border-muted">HB</Avatar.Fallback>
        </div>
      </Avatar.Root>
      <div class="space-y-1 text-sm">
        <h4 class="font-medium">@huntabyte</h4>
        <p>I do things on the internet.</p>
        <div
          class="flex items-center gap-[21px] pt-2 text-xs text-muted-foreground"
        >
          <div class="flex items-center text-xs">
            <MapPin class="mr-1 size-4" />
            <span> FL, USA </span>
          </div>
          <div class="flex items-center text-xs">
            <CalendarBlank class="mr-1 size-4" />
            <span> Joined May 2020</span>
          </div>
        </div>
      </div>
    </div>
  </LinkPreview.Content>
</LinkPreview.Root>

Overview

A component that lets users preview a link before they decide to follow it. This is useful for providing non-essential context or additional information about a link without having to navigate away from the current page.

Structure

	<script lang="ts">
	import { LinkPreview } from "bits-ui";
</script>
 
<LinkPreview.Root>
	<LinkPreview.Trigger />
	<LinkPreview.Content />
</LinkPreview.Root>

Managing Open State

Bits UI offers several approaches to manage and synchronize the Link Preview's open state, catering to different levels of control and integration needs.

1. Two-Way Binding

For seamless state synchronization, use Svelte's bind:open directive. This method automatically keeps your local state in sync with the component's internal state.

	<script lang="ts">
	import { LinkPreview } from "bits-ui";
	let isOpen = $state(false);
</script>
 
<button onclick={() => (isOpen = true)}>Open Link Preview</button>
 
<LinkPreview.Root bind:open={isOpen}>
	<!-- ... -->
</LinkPreview.Root>

Key Benefits

  • Simplifies state management
  • Automatically updates isOpen when the preview closes/opens (e.g., via escape key)
  • Allows external control (e.g., opening via a separate button)

2. Change Handler

For more granular control or to perform additional logic on state changes, use the onOpenChange prop. This approach is useful when you need to execute custom logic alongside state updates.

	<script lang="ts">
	import { LinkPreview } from "bits-ui";
	let isOpen = $state(false);
</script>
 
<LinkPreview.Root
	open={isOpen}
	onOpenChange={(o) => {
		isOpen = o;
		// additional logic here.
	}}
>
	<!-- ... -->
</LinkPreview.Root>

Use Cases

  • Implementing custom behaviors on open/close
  • Integrating with external state management solutions
  • Triggering side effects (e.g., logging, data fetching)

3. Fully Controlled

For complete control over the dialog's open state, use the controlledOpen prop. This approach requires you to manually manage the open state, giving you full control over when and how the dialog responds to open/close events.

To implement controlled state:

  1. Set the controlledOpen prop to true on the LinkPreview.Root component.
  2. Provide an open prop to LinkPreview.Root, which should be a variable holding the current state.
  3. Implement an onOpenChange handler to update the state when the internal state changes.
	<script lang="ts">
	import { LinkPreview } from "bits-ui";
	let myOpen = $state(false);
</script>
 
<LinkPreview.Root controlledOpen open={myOpen} onOpenChange={(o) => (myOpen = o)}>
	<!-- ... -->
</LinkPreview.Root>

When to Use

  • Implementing complex open/close logic
  • Coordinating multiple UI elements
  • Debugging state-related issues

Opt-out of Floating UI

When you use the LinkPreview.Content component, Bits UI uses Floating UI to position the content relative to the trigger, similar to other popover-like components.

You can opt-out of this behavior by instead using the LinkPreview.ContentStatic component. This component does not use Floating UI and leaves positioning the content entirely up to you.

	<LinkPreview.Root>
	<LinkPreview.Trigger />
	<LinkPreview.ContentStatic>
		<!-- ... -->
	</LinkPreview.ContentStatic>
</LinkPreview.Root>

API Reference

LinkPreview.Root

The root component used to manage the state of the state of the link preview.

Property Type Description
open $bindable
boolean

The open state of the link preview component.

Default: false
onOpenChange
function

A callback that fires when the open state changes.

Default: undefined
controlledOpen
boolean

Whether or not the open state is controlled or not. If true, the component will not update the open state internally, instead it will call onOpenChange when it would have otherwise, and it is up to you to update the open prop that is passed to the component.

Default: false
openDelay
number

The amount of time in milliseconds to delay opening the preview when hovering over the trigger.

Default: 700
closeDelay
number

The amount of time in milliseconds to delay closing the preview when the mouse leaves the trigger.

Default: 300
disabled
boolean

Whether or not the link preview is disabled.

Default: false
ignoreNonKeyboardFocus
boolean

Whether the link preview should ignore non-keyboard focus.

Default: false
children
Snippet

The children content to render.

Default: undefined

LinkPreview.Trigger

A component which triggers the opening and closing of the link preview on hover or focus.

Property Type Description
ref $bindable
HTMLAnchorElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See Child Snippet docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

Whether the accordion item is open or closed.

data-link-preview-trigger
''

Present on the trigger element.

LinkPreview.Content

The contents of the link preview which are displayed when the preview is open.

Property Type Description
side
enum

The preferred side of the anchor to render the floating element against when open. Will be reversed when collisions occur.

Default: bottom
sideOffset
number

The distance in pixels from the anchor to the floating element.

Default: 0
align
enum

The preferred alignment of the anchor to render the floating element against when open. This may change when collisions occur.

Default: start
alignOffset
number

The distance in pixels from the anchor to the floating element.

Default: 0
arrowPadding
number

The amount in pixels of virtual padding around the viewport edges to check for overflow which will cause a collision.

Default: 0
avoidCollisions
boolean

When true, overrides the side and align options to prevent collisions with the boundary edges.

Default: true
collisionBoundary
union

A boundary element or array of elements to check for collisions against.

Default: undefined
collisionPadding
union

The amount in pixels of virtual padding around the viewport edges to check for overflow which will cause a collision.

Default: 0
sticky
enum

The sticky behavior on the align axis. 'partial' will keep the content in the boundary as long as the trigger is at least partially in the boundary whilst 'always' will keep the content in the boundary regardless.

Default: partial
hideWhenDetached
boolean

When true, hides the content when it is detached from the DOM. This is useful for when you want to hide the content when the user scrolls away.

Default: true
updatePositionStrategy
enum

The strategy to use when updating the position of the content. When 'optimized' the content will only be repositioned when the trigger is in the viewport. When 'always' the content will be repositioned whenever the position changes.

Default: optimized
strategy
enum

The positioning strategy to use for the floating element. When 'fixed' the element will be positioned relative to the viewport. When 'absolute' the element will be positioned relative to the nearest positioned ancestor.

Default: fixed
preventScroll
boolean

When true, prevents the body from scrolling when the content is open. This is useful when you want to use the content as a modal.

Default: true
customAnchor
union

Use an element other than the trigger to anchor the content to. If provided, the content will be anchored to the provided element instead of the trigger.

Default: null
onInteractOutside
function

Callback fired when an outside interaction event completes, which is either a pointerup, mouseup, or touchend event, depending on the user's input device. You can call event.preventDefault() to prevent the default behavior of handling the outside interaction.

Default: undefined
onFocusOutside
function

Callback fired when focus leaves the dismissible layer. You can call event.preventDefault() to prevent the default behavior on focus leaving the layer.

Default: undefined
interactOutsideBehavior
enum

The behavior to use when an interaction occurs outside of the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onEscapeKeydown
function

Callback fired when an escape keydown event occurs in the floating content. You can call event.preventDefault() to prevent the default behavior of handling the escape keydown event.

Default: undefined
escapeKeydownBehavior
enum

The behavior to use when an escape keydown event occurs in the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onOpenAutoFocus
function

Event handler called when auto-focusing the content as it is opened. Can be prevented.

Default: undefined
onCloseAutoFocus
function

Event handler called when auto-focusing the content as it is closed. Can be prevented.

Default: undefined
trapFocus
boolean

Whether or not to trap the focus within the content when open.

Default: true
dir
enum

The reading direction of the app.

Default: ltr
forceMount
boolean

Whether or not to forcefully mount the content. This is useful if you want to use Svelte transitions or another animation library for the content.

Default: false
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See Child Snippet docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

Whether the accordion item is open or closed.

data-link-preview-content
''

Present on the content element.

LinkPreview.ContentStatic

The contents of the link preview which are displayed when the preview is open. (Static/No Floating UI)

Property Type Description
onInteractOutside
function

Callback fired when an outside interaction event completes, which is either a pointerup, mouseup, or touchend event, depending on the user's input device. You can call event.preventDefault() to prevent the default behavior of handling the outside interaction.

Default: undefined
onFocusOutside
function

Callback fired when focus leaves the dismissible layer. You can call event.preventDefault() to prevent the default behavior on focus leaving the layer.

Default: undefined
interactOutsideBehavior
enum

The behavior to use when an interaction occurs outside of the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onEscapeKeydown
function

Callback fired when an escape keydown event occurs in the floating content. You can call event.preventDefault() to prevent the default behavior of handling the escape keydown event.

Default: undefined
escapeKeydownBehavior
enum

The behavior to use when an escape keydown event occurs in the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onOpenAutoFocus
function

Event handler called when auto-focusing the content as it is opened. Can be prevented.

Default: undefined
onCloseAutoFocus
function

Event handler called when auto-focusing the content as it is closed. Can be prevented.

Default: undefined
trapFocus
boolean

Whether or not to trap the focus within the content when open.

Default: true
dir
enum

The reading direction of the app.

Default: ltr
forceMount
boolean

Whether or not to forcefully mount the content. This is useful if you want to use Svelte transitions or another animation library for the content.

Default: false
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See Child Snippet docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

Whether the accordion item is open or closed.

data-link-preview-content
''

Present on the content element.

LinkPreview.Arrow

An optional arrow element which points to the trigger when the preview is open.

Property Type Description
width
number

The width of the arrow in pixels.

Default: 8
height
number

The height of the arrow in pixels.

Default: 8
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See Child Snippet docs for more information.

Default: undefined
Data Attribute Value Description
data-link-preview-arrow
''

Present on the arrow element.