ReferenceDisplay

media-tooltip

A tooltip component for displaying contextual labels on hover and focus

Import

import '@videojs/html/ui/tooltip';
import '@videojs/html/ui/tooltip-group';
import '@videojs/html/ui/tooltip-label';
import '@videojs/html/ui/tooltip-shortcut';

Anatomy

<media-tooltip-group>
  <button commandfor="my-tooltip">Hover me</button>
  <media-tooltip id="my-tooltip">
    <media-tooltip-label>Label text</media-tooltip-label>
    <media-tooltip-shortcut>K</media-tooltip-shortcut>
  </media-tooltip>
</media-tooltip-group>

Behavior

Displays a short label anchored to a trigger element. Opens after a configurable delay (default 600ms) on hover or immediately on focus. Closes when the pointer leaves or focus moves away, with an optional closeDelay.

The side and align props control the preferred placement relative to the trigger. When the preferred side overflows the positioning boundary, the tooltip uses the opposite side if it has more space. Positioning uses CSS Anchor Positioning where supported, with a JavaScript measurement fallback.

The <media-tooltip> element is the popup itself. Link it to a trigger using the commandfor attribute on any button, pointing to the tooltip’s id. The element discovers its trigger automatically and manages open/close state and positioning. Wrap tooltip trigger/popup pairs in <media-tooltip-group> to coordinate timing — the group’s delay, close-delay, and timeout attributes control shared timing for all contained tooltips.

Tooltips inside a player container also observe its popup group. By default, a tooltip does not open—or closes if already open—while a menu or popover attached to the same trigger is open. Set sticky when the tooltip should remain visible with that trigger’s popup.

<media-tooltip-group> coordinates tooltip delay timing only; it does not replace the container’s popup group.

Styling

Use CSS custom properties for positioning offsets:

media-tooltip {
  --media-tooltip-side-offset: 8px;
  --media-tooltip-align-offset: 0px;
  --media-tooltip-boundary-offset: 8px;
}

Style based on open state, rendered side, and transition phases. data-side reflects the rendered side and can differ from the preferred side prop after collision handling:

media-tooltip[data-open] {
  display: block;
}
media-tooltip[data-starting-style] {
  opacity: 0;
}
media-tooltip[data-ending-style] {
  opacity: 0;
}
media-tooltip[data-side="top"] {
  transform-origin: bottom center;
}
media-tooltip[data-side="bottom"] {
  transform-origin: top center;
}

Accessibility

Tooltips are visual-only, supplementary labels. The popup renders with role="presentation" and is not referenced by the trigger with aria-describedby. Give the trigger its own accessible name instead of relying on tooltip content. Built-in media buttons already expose a state-aware aria-label, and their tooltips reuse that translated label. Tooltips still open on focus so keyboard users who can see the label receive the same visual hint.

Examples

Basic Usage

<div class="demo">
  <button type="button" commandfor="tooltip-demo" class="trigger">Hover me</button>
  <media-tooltip id="tooltip-demo" class="media-tooltip"> Tooltip content </media-tooltip>
</div>

.demo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.trigger {
  padding: 6px 16px;
  color: black;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 9999px;
  backdrop-filter: blur(10px);
}

.media-tooltip {
  --media-tooltip-side-offset: 8px;
  padding: 4px 10px;
  font-size: 13px;
  color: white;
  white-space: nowrap;
  pointer-events: none;
  background: rgba(0, 0, 0, 0.85);
  border-radius: 6px;
  backdrop-filter: blur(10px);
}

import '@videojs/html/ui/tooltip';

Grouping

Wrap tooltip trigger/popup pairs in <media-tooltip-group> to coordinate timing. The group’s delay, close-delay, and timeout attributes control shared timing for all contained tooltips.

<media-tooltip-group class="demo">
  <button type="button" commandfor="tooltip-play" class="trigger">Play</button>
  <media-tooltip id="tooltip-play" class="media-tooltip">Play video</media-tooltip>

  <button type="button" commandfor="tooltip-mute" class="trigger">Mute</button>
  <media-tooltip id="tooltip-mute" class="media-tooltip">Mute audio</media-tooltip>

  <button type="button" commandfor="tooltip-fullscreen" class="trigger">Fullscreen</button>
  <media-tooltip id="tooltip-fullscreen" class="media-tooltip">Enter fullscreen</media-tooltip>
</media-tooltip-group>

.demo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.trigger {
  padding: 6px 16px;
  color: black;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.media-tooltip {
  --media-tooltip-side-offset: 8px;
  padding: 4px 10px;
  font-size: 13px;
  color: white;
  white-space: nowrap;
  pointer-events: none;
  background: rgba(0, 0, 0, 0.85);
  border-radius: 6px;
  backdrop-filter: blur(10px);
}

import '@videojs/html/ui/tooltip';
import '@videojs/html/ui/tooltip-group';

API Reference

media-tooltip-group

Props

Prop	Type	Default
`closeDelay` attribute `close-delay`	`number`	—
Description Default close delay in ms for tooltips in this group.
`delay`	`number`	—
Description Default open delay in ms for tooltips in this group.
`timeout`	`number`	—
Description Duration in ms after a tooltip closes during which the next tooltip opens instantly.

media-tooltip

Props

Prop	Type	Default
`align`	`'start' \| 'center' \| 'end'`	`'center'`
Description Alignment of the tooltip along the trigger's edge.
`boundary`	`'viewport' \| 'container' \| string & {}`	—
Description Boundary used to constrain the tooltip position.
`closeDelay` attribute `close-delay`	`number`	`0`
Description Delay in ms before closing after pointer leaves.
`defaultOpen` attribute `default-open`	`boolean`	`false`
Description Initial open state for uncontrolled usage.
`delay`	`number`	`600`
Description Delay in ms before opening on hover.
`disabled`	`boolean`	`false`
Description When true, the tooltip is disabled and will not open.
`disableHoverablePopup` attribute `disable-hoverable-popup`	`boolean`	`true`
Description When true, hovering the popup does not keep it open.
`open`	`boolean`	`false`
Description Controlled open state.
`side`	`'top' \| 'bottom' \| 'left' \| 'right'`	`'top'`
Description Preferred side of the trigger for the tooltip.
`sticky`	`boolean`	`false`
Description Whether the tooltip stays open when another popup opens from its trigger.

State

State is reflected as data attributes for CSS styling.

Property	Type	Details
`transitionStarting`	`boolean`
Description Whether the open transition is in progress.
`transitionEnding`	`boolean`
Description Whether the close transition is in progress.
`open`	`boolean`
Description Whether the tooltip is currently visible.
`status`	`'idle' \| 'starting' \| 'ending'`
Description Current phase of the transition lifecycle.
`side`	`'top' \| 'bottom' \| 'left' \| 'right'`
Description Preferred side of the trigger for the tooltip.
`align`	`'start' \| 'center' \| 'end'`
Description How the tooltip is aligned relative to the specified side.

Data attributes

Attribute	Type	Details
`data-open`	—
Description Present when the tooltip is open.
`data-side`	`'top' \| 'bottom' \| 'left' \| 'right'`
Description Indicates the rendered side of the tooltip after collision handling.
`data-align`	`'start' \| 'center' \| 'end'`
Description Indicates how the tooltip is aligned relative to the specified side.

CSS custom properties

Variable	Description
`--media-tooltip-side-offset`	Distance between the popup and the trigger along the side axis.
`--media-tooltip-align-offset`	Distance between the popup and the trigger along the alignment axis.
`--media-tooltip-boundary-offset`	Minimum distance between the popup and the positioning boundary.
`--media-tooltip-anchor-width`	The anchor element's width.
`--media-tooltip-anchor-height`	The anchor element's height.
`--media-tooltip-available-width`	Available width between the trigger and the boundary edge.
`--media-tooltip-available-height`	Available height between the trigger and the boundary edge.

Events

Event	Description
`open-change`	Fired when the tooltip's open state changes.

media-tooltip-label

Label region inside media-tooltip; parent syncs text from the trigger when linked to a media button.

Data attributes

Attribute	Type	Details
`data-open`	—
Description Present when the tooltip is open.
`data-side`	`'top' \| 'bottom' \| 'left' \| 'right'`
Description Indicates the rendered side of the tooltip after collision handling.
`data-align`	`'start' \| 'center' \| 'end'`
Description Indicates how the tooltip is aligned relative to the specified side.

media-tooltip-shortcut

Shortcut hint inside media-tooltip. CSS skins: class="media-tooltip__kbd"; Tailwind skins: class from popup.tooltipShortcut.

Data attributes

Attribute	Type	Details
`data-open`	—
Description Present when the tooltip is open.
`data-side`	`'top' \| 'bottom' \| 'left' \| 'right'`
Description Indicates the rendered side of the tooltip after collision handling.
`data-align`	`'start' \| 'center' \| 'end'`
Description Indicates how the tooltip is aligned relative to the specified side.