LP#1731278 Make webstaff grid column sort stable

As Remington Steed deduced, lack of stable sort in Chrome causes our
webstaff grid "explicit" columns to move around in the process of
sorting the other columns.

As a simplistic fix, let's first record the original order, then keep
any explicit columns in their original order.

Signed-off-by: Dan Wells <dbw2@calvin.edu>
Signed-off-by: Kathy Lussier <klussier@masslnc.org>

diff --git a/Open-ILS/web/js/ui/default/staff/services/grid.js b/Open-ILS/web/js/ui/default/staff/services/grid.js
index 15d61f2..9d29cc3 100644 (file)
--- a/Open-ILS/web/js/ui/default/staff/services/grid.js
+++ b/Open-ILS/web/js/ui/default/staff/services/grid.js
@@ -1502,8 +1502,19 @@ angular.module('egGridMod',
                         {idl_parent : idl_parent, idl_field : field, idl_class : class_obj, field_parent_label : old_field_label });
                 });
 
+                angular.forEach(cols.columns, function(col, i) {
+                    col.origPos = i;
+                });
                 cols.columns = cols.columns.sort(
                     function(a, b) {
+                        if (a.explicit && b.explicit) {
+                            if (a.origPos < b.origPos) {
+                                return -1;
+                            } else {
+                                return 1;
+                            }
+                        }
+
                         if (a.explicit) return -1;
                         if (b.explicit) return 1;