angular-ui/ui-grid

Hello, I'm looking for a way to get the row which has just been selected in the gridApi.selection.on.rowSelectionChangedBatch handler function.

For example, in this Plunker http://plnkr.co/edit/14Px9QKfnoydU2sZ , let's say I do the following:

1. Select the row whose Name is "Terry Clay"
2. Select the row whose Name is "Hatfield Hudson" with the shift key pressed
3. Select the row whose Name is "Sandoval Mclean" with the shift key pressed

At the step 2, I'd like to get the row object whose Name is "Hatfield Hudson".
At the step 3, I'd like to get the row object whose Name is "Sandoval Mclean".

In other words, here is what I want to do:

gridApi.selection.on.rowSelectionChangedBatch($scope,function(rows){
    // **** Question ****
    // Is there any way to reliably get the row which has just been selected here?
    // i.e. How can I find out which is the one which has just been selected out of the following ("head" and "tail") ?
    var head = rows[0];
    var tail = rows[rows.length-1];

    $log.log(head.entity.name);
    $log.log(tail.entity.name);
});