Is there a correct way to solve the problem with event propagation between two sibling panes?
For example we have StackPane with 2 panes inside.
StackPane p = new StackPane();
Region p1 = new Region();
Region p2 = new Region();
p.getChildren().addAll(p1, p2);
p2 in this example capture mouse events and p1 can't react on it even if event is not consumed.
Is there a correct way to propagate event to p1 if it not consumed by p2?
setMouseTransparent not solve my problem because I need that both children elements react on mouse.
Thanks for advise.
In JavaFX applications, events are notifications that something has happened. As a user clicks a button, presses a key, moves a mouse, or performs other actions, events are dispatched. Registered event filters and event handlers within the application receive the event and provide a response.
The following article provides an outline for JavaFX EventHandler. In JavaFX, Event Handling is a process which controls an event as well as decides what has to be triggered, when an event occurs. This will be done writing a code called as an event handler that executes when an event occurs.
An Event representing some type of action. This event type is widely used to represent a variety of things, such as when a Button has been fired, when a KeyFrame has finished, and other such usages.
GUI applications are event-driven. An application reacts to different event types which are generated during its lifetime. Events are generated by a user (a mouse click), an application (a timer), or the system (a clock).
By default events will just propagate up the heirarchy and terminate at the root. There are a few approaches you could take to solve your problem.
buildEventDispatchChain.dispatchEvent
). Then do the same on the other side.Just catch the event in an event handler and fire it on the other components:
top.addEventHandler(EventType.ROOT, event -> bottom.fireEvent(event));
You can still add mouse listeners on the top components and it works fine. If the bottom component does more fancy stuff with the event, you might need to clone and adjust it. This also works with more than two children.
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