#48 System folder of closed issue have got a lighter colour

app/models/dmsf_folder.rb

@@ -104,14 +104,8 @@ class DmsfFolder < ActiveRecord::Base
     return true if (User.current.admin? || folder.nil?)
     # System folder?
     if folder && folder.system
-      if (!allow_system || !User.current.allowed_to?(:display_system_folders, folder.project))
-        return false
-      end
-      issue_id = folder.title.to_i
-      if issue_id > 0
-        issue = Issue.find_by_id issue_id
-        return false unless issue && issue.visible?(User.current)
-      end
+      return false if (!allow_system || !User.current.allowed_to?(:display_system_folders, folder.project))
+      return false unless self.issue && self.issue.visible?(User.current)
     end
     # Permissions?
     if !folder.dmsf_folder || permissions?(folder.dmsf_folder, allow_system)
@@ -530,6 +524,16 @@ class DmsfFolder < ActiveRecord::Base
     l(:title_unlock_file)
   end
 
+  def issue
+    unless @issue
+      if self.system
+        issue_id = self.title.to_i
+        @issue = Issue.find_by_id(issue_id) if issue_id > 0
+      end
+    end
+    @issue
+  end
+
   private
 
   def self.directory_subtree(tree, folder, level, current_folder)

app/views/dmsf/_dmsf_rows.erb

@@ -20,6 +20,7 @@
 
     <% if obj.is_a? DmsfFolder %>
         <% classes << ' dmsf_system' if obj.system %>
+        <% classes << ' dmsf_system_closed' if obj.issue && obj.issue.closed? %>
         <tr <%= id %> class="dir <%= classes %>">
           <%= render(:partial => 'dir',
                      :locals => {

app/views/dmsf/_list_view.erb

@@ -65,7 +65,7 @@
   </thead>
   <tbody>
   <% @subfolders.each do |subfolder| %>
-    <tr class="dir <%= 'dmsf_system' if subfolder.system %>">
+    <tr class="dir <%= 'dmsf_system' if subfolder.system %> <%= 'dmsf_system_closed' if subfolder.issue && subfolder.issue.closed? %>">
       <%= render(:partial => 'dir',
         :locals => {
           :project => @project,

assets/stylesheets/redmine_dmsf.css

@@ -208,6 +208,7 @@ div.dmsf_revision_inner_box .attribute .label {
 /* File types */
 .dmsf_gray .icon-folder { background-image: url(../images/folder_gray.png); }
 .dmsf_system .icon-folder { background-image: url(../images/folder_system.png); }
+.dmsf_system_closed .icon-folder { background-image: url(../images/folder_system_closed.png); }
 
 .icon-file.filetype-doc, .icon-file.filetype-docx { background-image: url(../images/filetypes/doc.png); }
 .icon-file.filetype-xls, .icon-file.filetype-xlsx { background-image: url(../images/filetypes/xls.png); }