Tree ajax log. progress bar & refactoring

app/helpers/application_helper.rb

@@ -134,4 +134,8 @@ module ApplicationHelper
              end
     active ? "current" : nil
   end
+
+  def hexdigest(string)
+    Digest::SHA1.hexdigest string
+  end
 end

app/helpers/tree_helper.rb

@@ -0,0 +1,27 @@
+module TreeHelper
+  def tree_icon(content)
+    if content.is_a?(Grit::Blob)
+      if content.text?
+        image_tag "file_txt.png"
+      elsif content.image?
+        image_tag "file_img.png"
+      else
+        image_tag "file_bin.png"
+      end
+    else
+      image_tag "file_dir.png"
+    end
+  end
+
+  def tree_hex_class(content)
+    "file_#{hexdigest(content.name)}"
+  end
+
+  def tree_full_path(content)
+    if params[:path] 
+      File.join(params[:path], content.name)
+    else
+      content.name
+    end
+  end
+end