Delete selected rows in bwu-grid by using the delete key

Question

I'm using the bwu-grid and want to have the delete key to delete rows. Here is the code I have right now:

_grid.onKeyDown.listen((e) {

  print("onKeyDown ${e.keyCode}");
  if(e.keyCode == 46)
  {
    var rows = _grid.getSelectedRows();
    for (var i = 0, l = rows.length; i < l; i++) {
      var item = _dataView.getItem(rows[i]);
      var rowid = item["id"];
      _dataView.deleteItem(rowid);

      // This should probably be handled in another event?
      _grid.invalidate();
      _grid.render();

    }
  }
});

It works but the problem is that if I enter edit mode on a cell and hit the delete key to delete a character inside the cell then the same code gets run and deletes the whole row. So I guess I need a way to determine if the cell is in edit mode or not. Or maybe I am going about this the wrong way?