notifications.onShown
Fired immediately after a notification has been shown.
Syntax
browser.notifications.onShown.addListener(listener)
browser.notifications.onShown.removeListener(listener)
browser.notifications.onShown.hasListener(listener)
Events have three functions:
addListener(callback)
- Adds a listener to this event.
removeListener(listener)
- Stop listening to this event. The
listener
argument is the listener to remove. hasListener(listener)
- Check whether
listener
is registered for this event. Returnstrue
if it is listening,false
otherwise.
addListener syntax
Parameters
Browser compatibility
Report problems with this compatibility data on GitHubwebextensions-desktop | webextensions-mobile | |||||
---|---|---|---|---|---|---|
onShown | ChromeNo supportNo | EdgeNo supportNo | FirefoxFull support56 | OperaNo supportNo | SafariNo supportNo | Firefox for AndroidFull support56 |
Legend
- Full support
- Full support
- No support
- No support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Examples
Add a listener to the notifications.onShown
event and log its details:
function logShown(itemId) {
console.log(`shown: ${itemId}`);
browser.notifications.getAll().then((all) => {
console.log(all[itemId]);
})
}
browser.notifications.onShown.addListener(logShown);
Acknowledgements
This API is based on Chromium's chrome.notifications
API.