rem: static WMData* fetchDragData(WMView *self, char *type)
add: fetchDragData(WMView *self, char *type)
context: static WMData* fetchDragData(WMView *self, char *type){    DNDStuff *stuff = WMGetHangedData(WMWidgetOfView(self));    return WMCreateDataWithBytes(stuff->filename, strlen(stuff->filename)+1);}