Trying to extend a FlexTable to add OnMouseMove events.
Works fine except that I need to create getCellForEvent(MouseMoveEvent
e). Inside this method, I would need to create a HTMLTable.Cell. But
the constructor is protected!
(In general, I find the heavy usage of "final" and "private/protected"
in the GWT library to be quite a hassle.)
What is the best way to tackle this problem cleanly?
***
public class EventableFlexTable extends FlexTable {
public HandlerRegistration addMouseMoveHandler(MouseMoveHandler
handler) {
sinkEvents(Event.ONMOUSEMOVE);
return addHandler(handler, MouseMoveEvent.getType());
}
public Cell getCellForEvent(MouseMoveEvent event) {
Element td = getEventTargetCell(Event.as(event.getNativeEvent()));
if (td == null) {
return null;
}
Element tr = DOM.getParent(td);
Element body = DOM.getParent(tr);
int row = DOM.getChildIndex(body, tr);
int column = DOM.getChildIndex(tr, td);
return new Cell(row, column); // *** doesn't compile ****
}
}
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