Custom List

List component doesn't allow to disable COPY action if Drag'n'Drop enabled. The following is a custom component that permit to disable COPY action:

package org.selectionLists
{
import mx.controls.List;
import flash.events.Event;
import mx.events.DragEvent;
import mx.managers.DragManager;

public class CustomList extends List
{

    private var _dragCopyEnabled:Boolean = false;

    public function get dragCopyEnabled():Boolean {
        return _dragCopyEnabled;
    }

    public function set dragCopyEnabled(value:Boolean):void {
        _dragCopyEnabled = value;
    }

    override protected function dragDropHandler(event:DragEvent):void {
        if (!_dragCopyEnabled) {

            event.action = DragManager.MOVE;
            DragManager.showFeedback(DragManager.MOVE);
        }

        super.dragDropHandler(event);
    }

    override protected function dragEnterHandler(event:DragEvent):void {

        if (!_dragCopyEnabled) {
            event.ctrlKey = false;
        }

        super.dragEnterHandler(event);
    }

    override protected function dragOverHandler(event:DragEvent):void {

        if (!_dragCopyEnabled) {
            event.ctrlKey = false;
        }

        super.dragOverHandler(event);
    }

}
}