How can we make a Box widget able to detect drag event and differentiate it from single click?

[BParh.1]

I create a widget Box, with intention:

1. For single click , do action 1
2. For dragging, prevent doing action 1

This mean I need the Box container need to :

1. Detect drag event. I know how to detect single click but not drag.
2. Differentiate between drag event and single click.

I tried to tick mixins option for both 'Draggable' and 'ClickListener' then setup in class definition

virtual void handleDragEvent(const DragEvent& event) override {

    // break point here

  }

But when I drag the box, it never hit the breakpoint inside handleDragEvent().

Did I miss anything?

[BParh.1]

Ok I realize we cannot detect drag event from custom container level, it has to be propagated from Screen View level