WebKit2.WebView::show-notification

connect('show-notification', function (webView, notification: WebKit2.Notification, ): Boolean);
  

This signal is emitted when a notification should be presented to the user. The notification is kept alive until either: 1) the web page cancels it or 2) a navigation happens.

The default handler will emit a notification using libnotify, if built with support for it.

Since 2.8