CODEWITHSUNDEEP
javajavafxjavafx-8contextmenu
Ziphil
Ziphil

Reputation: 59

How to disable the default context menu globally

The following code disables the default context menu of all the existing TextField added to Scene.

for (Node node : scene.getRoot().lookupAll("*")) {
  if (node instanceof TextField) {
    ((TextField)node).setContextMenu(new ContextMenu());
  }
}

But if you add another TextField to Scene later, its default context menu is not disabled. If you run the code above each time you add TextFields, there would be no problem, but it is rather troublesome.

So are there any way to disable the default context menu of all the TextField (including ones added in the scene graph later)?

Upvotes: 1

Views: 961

Answers (2)

DVarga
DVarga

Reputation: 21799

You can use CSS to remove the context menu of TextField objects:

.text-field * .context-menu { 
    visibility: hidden;
}

.text-field * .context-menu > .scroll-arrow {
    -fx-opacity: 0;
}

The first style class hides ContextMenu itself. The second one hides the small arrow.

Upvotes: 1

fabian
fabian

Reputation: 82451

The CONTEXT_MENU_REQUESTED event can be consumed before it reaches the target Node by a event filter that is added to the Scene or to a Parent containing all the TextFields that should not open the context menu:

scene.addEventFilter(ContextMenuEvent.CONTEXT_MENU_REQUESTED, evt -> {
    if (checkTextField((Node) evt.getTarget())) {
        evt.consume();
    }
});

// check, if the node is part of a TextField
public static boolean checkTextField(Node node) {
    while (node != null) {
        if (node instanceof TextField) {
            return true;
        }
        node = node.getParent();
    }
    return false;
}

Upvotes: 2

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