WakeLockSentinel: release event
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The release
event of the WakeLockSentinel
interface is fired when the sentinel object's handle has been released.
A WakeLockSentinel
can be released manually via the release()
method, or automatically via the platform wake lock.
This can happen if the document becomes inactive or looses visibility, if the device is low on power or the user turns on a power save mode.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener("release", (event) => {});
onrelease = (event) => {};
Event type
A generic Event
.
Examples
This example updates the UI if the wake lock is released.
wakeLock.addEventListener("release", () => {
// if wake lock is released alter the UI accordingly
statusElement.textContent = "Wake Lock has been released";
});
Specifications
Specification |
---|
Screen Wake Lock API # the-onrelease-attribute |
Browser compatibility
BCD tables only load in the browser