CODEWITHSUNDEEP
javafxmouseevent
alex
alex

Reputation: 5694

Detecting every MouseEvent in JavaFx scene

I want to detect every MouseEvent in my JavaFx Scene, especially mouse clicks. My following solution works for some clicks, but only on some controls not for every control. So my question is, is there a way to detect every MouseReleased event on all Nodes of a Scene?

scene.addEventHandler(MouseEvent.ANY, (EventHandler<MouseEvent>) event -> {
    EventTarget comp = event.getTarget();
    logger.debug("## " + (comp != null ? comp.getClass().getSimpleName() : event.getClass().getSimpleName()) + " [" + event.getEventType() + "] ## Komponente: " + event.getTarget() + " --------> Details:" + event);
});

Upvotes: 0

Views: 1087

Answers (1)

alex
alex

Reputation: 5694

Following @James_D suggestion, my logging is now working. To catch all events, its necessary to use an EventFilter because an EventHandler is missing Event that are already consumed. The doc explains the differences:

addEventFilter
Registers an event filter to this scene. The filter is called when the scene receives an Event of the specified type during the capturing phase of event delivery.

addEventHandler
Registers an event handler to this scene. The handler is called when the scene receives an Event of the specified type during the bubbling phase of event delivery.

A working code example:

scene.addEventFilter(MouseEvent.MOUSE_RELEASED, (EventHandler<MouseEvent>) event -> {
    EventTarget comp = event.getTarget();
    logger.debug("## " + (comp != null ? comp.getClass().getSimpleName() : event.getClass().getSimpleName()) + " [" + event.getEventType() + "] ## Komponente: " + event.getTarget() + " --------> Details:" + event);
});

Upvotes: 1

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