Idle Notification

Displays a notification and action-buttons before session-timeout

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Idle Notification is an add-on that notifies the user before their session is about to expire. It enables the following features:

• specify a message to be displayed to the user (which may include a count-down timer) before their session expires
• set the number of seconds before session termination, at which point the notification is displayed.
• add a button to the notification that enables the user to poke the server, thereby extending the session.
• add a button to the notification that allow the user to immediately redirect to a different URL (e.g. a logout URL)
• add a close button, allowing the user to close the notification without taking any action
• specify a different message to be displayed to the user once their session has been terminated
• determine whether an outside click when the notification is opened would extend the session
• specify a URL to which the page would be automatically redirected upon session termination

Sponsored development

Major pieces of development of this add-on has been sponsored by multiple customers of Vaadin. Read more about Expert on Demand at: Support and Pricing

Sample code

IdleNotification idleNotification = new IdleNotification();

// No. of secs before timeout, at which point the notification is displayed
idleNotification.setSecondsBeforeNotification(90);
idleNotification.setMessage("Your session will expire in " +  
    IdleNotification.MessageFormatting.SECS_TO_TIMEOUT  
    + " seconds.");
idleNotification.addExtendSessionButton("Extend session");
idleNotification.addRedirectButton("Logout now", "logout");
idleNotification.addCloseButton();
idleNotification.setExtendSessionOnOutsideClick(false);

UI.getCurrent().add(idleNotification);

IdleNotification idleNotification = new IdleNotification(90);
idleNotification.setRedirectAtTimeoutUrl("logout");

UI.getCurrent().add(idleNotification);

Links

• View on GitHub

Compatibility