MediaSessionActionDetails.action

The action property is the only required property MediaSessionActionDetails dictionary, specifying the type of media session action which the action handler callback is being executed for.

Syntax

let mediaSessionActionDetails = { action: actionType };

let actionType = mediaSessionActionDetails.action;

Value

A DOMString specifying which of the action types the callback is being invoked for:

nexttrack
Advances playback to the next track.
pause
Pauses playback of the media.
play
Begins (or resumes) playback of the media.
previoustrack
Moves back to the previous track.
seekbackward
Seeks backward through the media from the current position. The MediaSessionActionDetails property seekOffset specifies the amount of time to seek backward.
seekforward
Seeks forward from the current position through the media. The MediaSessionActionDetails property seekOffset specifies the amount of time to seek forward.
seekto
Moves the playback position to the specified time within the media. The time to which to seek is specified in the MediaSessionActionDetails property seekTime. If you intend to perform multiple seekto operations in rapid succession, you can also specify the MediaSessionActionDetails property fastSeek property with a value of true. This lets the browser know it can take steps to optimize repeated operations, and is likely to result in improved performance.
skipad
Skips past the currently playing advertisement or commercial. This action may or may not be available, depending on the platform and user agent, or may be disabled due to subscription level or other circumstances.
stop
Halts playback entirely.

Specifications

Specification Status Comment
Media Session Standard
The definition of 'MediaSessionActionDetails.action' in that specification.
Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
action
Experimental
Chrome Full support 73Edge Full support ≤79Firefox Full support 71
Disabled
Full support 71
Disabled
Disabled From version 71: this feature is behind the dom.media.mediasession.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE ? Opera No support NoSafari ? WebView Android No support NoChrome Android Full support 57Firefox Android No support NoOpera Android No support NoSafari iOS ? Samsung Internet Android Full support 7.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also