notifications.onClosed
Fired when a notification is closed, either by the system or by the user.
Syntax
js
browser.notifications.onClosed.addListener(listener)
browser.notifications.onClosed.removeListener(listener)
browser.notifications.onClosed.hasListener(listener)
Events have three functions:
addListener(listener)
-
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
listener
-
The function called when this event occurs. The function is passed these arguments:
notificationId
-
string
. ID of the notification that closed. byUser
-
boolean
.true
if the notification was closed by the user, orfalse
if it was closed by the system. This argument is not supported in Firefox.
Browser compatibility
BCD tables only load in the browser
Examples
In this simple example we add a listener to the notifications.onClosed
event to listen for system notifications being closed. When this occurs, we log an appropriate message to the console.
js
browser.notifications.onClosed.addListener((notificationId) => {
console.log(`Notification ${notificationId} has closed.`);
});
Note: This API is based on Chromium's chrome.notifications
API.