/*
A row has just been indented or outdented. We're trying to find the new 'parent' of the row. Item B has just been moved.

- Item
- Item A
 - Item
 - Item
  - Item
  - Item C
 - Item B

Item B was underneath Item C. Underneath Item C means there were 3 indents. Now it only has 1 indent. So we want Item B to find it's new parent, Item A.

The final parent should end up in the 'sourceRow' variable.
*/

    else if (rowSettings.relationship == 'parent') {
      var parents = this.indentCount - this.dragObject.indents;
      var previousRow = $(changedRow).prev();
      while (parents > 0) {
        parents--;
        while (previousRow.length && $('.indentation', previousRow).length < (this.dragObject.indents - parents)) {
          previousRow = previousRow.prev();
        }
      }
      sourceRow = previousRow[0] || changedRow;
    }