context menu get row with 5.x

[gilem]

we were previously using 2.x, and with 5.x jQuery.contextMenu is no longer working.
The menu pops up, we are unable to determine what the row# is.
We used to use this.attr('pq-row-indx') within the contextMenu callback, but it is not obvious to me how to get the row with v5.
Thanks

[paramvir]

in v5x, id of the rows is like pq-body-row-u5-2-left whereby id.split("-")[4] provides the rowIndx.