Display a projects tree instead of a flat list in notification preferences (#11539).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10189 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/users/_mail_notifications.html.erb

@@ -9,17 +9,15 @@
 </p>
 <%= content_tag 'div', :id => 'notified-projects', :style => (@user.mail_notification == 'selected' ? '' : 'display:none;') do %>
   <p>
-    <% @user.projects.each do |project| %>
-      <label>
-        <%= check_box_tag(
-               'notified_project_ids[]',
+    <%= render_project_nested_lists(@user.projects) do |project|
+          content_tag('label', 
+            check_box_tag(
+              'notified_project_ids[]',
                project.id,
                @user.notified_projects_ids.include?(project.id)
-               ) %>
-        <%= h(project.name) %>
-      </label>
-      <br />
-    <% end %>
+            ) + ' ' + h(project.name)
+          )
+        end %>
   </p>
   <p><em class="info"><%= l(:text_user_mail_option) %></em></p>
 <% end %>