[latexila/gnome-3-16] DeleteTemplateDialog: delete the good templates

[Sébastien Wilmet <swilmet src gnome org>]

commit 8f269dcc517a0858905a0a3d87f5e71ab8310987
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Apr 19 10:50:12 2015 +0200

    DeleteTemplateDialog: delete the good templates
    
    This is an important bug fix. Wrong templates could have been deleted!
    This bug is present in latexila since many versions, and hasn't been
    reported. I guess the dialog window is usually used to delete only one
    template at a time (in that case the bug doesn't occur). Many users are
    hopefully not aware that it is possible to select several templates and
    delete them in one go.

 src/templates_dialogs.vala |   14 ++++++++++----
 1 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/src/templates_dialogs.vala b/src/templates_dialogs.vala
index a5b57b0..63ac516 100644
--- a/src/templates_dialogs.vala
+++ b/src/templates_dialogs.vala
@@ -274,12 +274,18 @@ public class DeleteTemplateDialog : Dialog
         while (run () == ResponseType.ACCEPT)
         {
             TreeSelection select = templates_list.get_selection ();
-            List<TreePath> selected_items = select.get_selected_rows (null);
-            uint nb_selected_items = selected_items.length ();
+            unowned TreeModel model;
+            List<TreePath> selected_rows = select.get_selected_rows (out model);
+            List<TreeRowReference> row_refs = null;
+
+            foreach (TreePath path in selected_rows)
+            {
+                row_refs.prepend (new TreeRowReference (model, path));
+            }
 
-            for (int item_num = 0 ; item_num < nb_selected_items ; item_num++)
+            foreach (TreeRowReference row_ref in row_refs)
             {
-                TreePath path = selected_items.nth_data (item_num);
+                TreePath path = row_ref.get_path ();
                 templates.delete_personal_template (path);
                 template_deleted = true;
             }