Add render_tree helper; simplify (speed up) tree_icon

app/assets/javascripts/tree.js.coffee

@@ -15,6 +15,7 @@ $ ->
     $("#tree-slider .tree-item").live 'click', (e) ->
       $('.tree-item-file-name a', this).trigger('click') if (e.target.nodeName != "A")
 
+    # Show/Hide the loading spinner
     $('#tree-slider .tree-item-file-name a, .breadcrumb a, .project-refs-form').live
       "ajax:beforeSend": -> $('.tree_progress').addClass("loading")
       "ajax:complete":   -> $('.tree_progress').removeClass("loading")

app/decorators/tree_decorator.rb

@@ -8,14 +8,14 @@ class TreeDecorator < ApplicationDecorator
 
       #parts = parts[0...-1] if is_blob?
 
-      yield(h.link_to("..", "#", remote: :true)) if parts.count > max_links
+      yield(h.link_to("..", "#", remote: true)) if parts.count > max_links
 
       parts.each do |part|
         part_path = File.join(part_path, part) unless part_path.empty?
         part_path = part if part_path.empty?
 
         next unless parts.last(2).include?(part) if parts.count > max_links
-        yield(h.link_to(h.truncate(part, length: 40), h.project_tree_path(project, h.tree_join(ref, part_path)), remote: :true))
+        yield(h.link_to(h.truncate(part, length: 40), h.project_tree_path(project, h.tree_join(ref, part_path)), remote: true))
       end
     end
   end

app/helpers/tree_helper.rb

 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
+  # Sorts a repository's tree so that folders are before files and renders
+  # their corresponding partials
+  #
+  # contents - A Grit::Tree object for the current tree
+  def render_tree(contents)
+    # Render Folders before Files/Submodules
+    folders, files = contents.partition { |v| v.kind_of?(Grit::Tree) }
+
+    tree = ""
+
+    # Render folders if we have any
+    tree += render partial: 'tree/tree_item', collection: folders, locals: {type: 'folder'} if folders.present?
+
+    files.each do |f|
+      if f.respond_to?(:url)
+        # Object is a Submodule
+        tree += render partial: 'tree/submodule_item', object: f
       else
-      image_tag "file_dir.png"
+        # Object is a Blob
+        tree += render partial: 'tree/tree_item', object: f, locals: {type: 'file'}
       end
     end
 
-  def tree_hex_class(content)
-    "file_#{hexdigest(content.name)}"
+    tree.html_safe
   end
 
-  def tree_full_path(content)
-    content.name.force_encoding('utf-8')
-    if params[:path]
-      File.join(params[:path], content.name)
-    else
-      content.name
+  # Return an image icon depending on the file type
+  #
+  # type - String type of the tree item; either 'folder' or 'file'
+  def tree_icon(type)
+    image = type == 'folder' ? 'file_dir.png' : 'file_txt.png'
+    image_tag(image, size: '16x16')
   end
+
+  def tree_hex_class(content)
+    "file_#{hexdigest(content.name)}"
   end
 
   # Public: Determines if a given filename is compatible with GitHub::Markup.

app/views/tree/_tree.html.haml

@@ -14,7 +14,6 @@
   - if tree.is_blob?
     = render partial: "tree/tree_file", object: tree
   - else
-    - contents = tree.contents
     %table#tree-slider{class: "table_#{@hex_path} tree-table" }
       %thead
         %th Name
@@ -24,22 +23,16 @@
           = link_to "History", tree.history_path, class: "right"
 
       - if tree.up_dir?
-        %tr{ class: "tree-item", url: tree.up_dir_path }
+        %tr.tree-item
           %td.tree-item-file-name
-            = image_tag "file_empty.png"
-            = link_to "..", tree.up_dir_path, remote: :true
+            = image_tag "file_empty.png", size: '16x16'
+            = link_to "..", tree.up_dir_path, remote: true
           %td
           %td
 
-      - index = 0
-      - contents.select{ |i| i.is_a?(Grit::Tree)}.each do |content|
-        = render partial: "tree/tree_item", locals: { content: content, index: (index += 1) }
-      - contents.select{ |i| i.is_a?(Grit::Blob)}.each do |content|
-        = render partial: "tree/tree_item", locals: { content: content, index: (index += 1) }
-      - contents.select{ |i| i.is_a?(Grit::Submodule)}.each do |content|
-        = render partial: "tree/submodule_item", locals: { content: content, index: (index += 1) }
+      = render_tree(tree.contents)
 
-    - if content = contents.select{ |c| c.is_a?(Grit::Blob) and c.name =~ /^readme/i }.first
+    - if content = tree.contents.find { |c| c.is_a?(Grit::Blob) and c.name =~ /^readme/i }
       .file_holder#README
         .file_title
           %i.icon-file

app/views/tree/_tree_item.html.haml

-- file = tree_full_path(content)
-%tr{ class: "tree-item #{tree_hex_class(content)}", url: project_tree_path(@project, tree_join(@id, file)) }
+%tr{ class: "tree-item #{tree_hex_class(tree_item)}" }
   %td.tree-item-file-name
-    = tree_icon(content)
-    %strong= link_to truncate(content.name, length: 40), project_tree_path(@project, tree_join(@id || @commit.id, file)), remote: :true
+    = tree_icon(type)
+    %strong= link_to truncate(tree_item.name, length: 40), project_tree_path(@project, tree_join(@id || @commit.id, tree_item.name)), remote: true
   %td.tree_time_ago.cgray
-    - if index == 1
-      %span.log_loading
-        Loading commit data..
+    %span.log_loading.hide
+      Loading commit data...
       = image_tag "ajax_loader_tree.gif", width: 14
   %td.tree_commit

app/views/tree/show.js.haml

 :plain
   // Load Files list
-  $("#tree-holder").html("#{escape_javascript(render(partial: "tree", locals: {commit: @commit, tree: @tree}))}");
+  $("#tree-holder").html("#{escape_javascript(render(partial: "tree", locals: {tree: @tree}))}");
   $("#tree-content-holder").show("slide", { direction: "right" }, 150);
   $('.project-refs-form #path').val("#{@path}");