Default arch download default to amd64

Remove the popular option as it only included a single item.

content/download.html

@@ -36,8 +36,8 @@ title: Download
 
     <div class="panel panel-default download-selection">
       <div class="panel-body">
-        Operating system <%= dropdown(:os, Downloads.operating_systems) %>
-        Architecture <%= dropdown(:arch, Downloads.architectures) %>
+        Operating system <%= dropdown(:os, Downloads.operating_systems, :popular, popular: %w(darwin linux windows)) %>
+        Architecture <%= dropdown(:arch, Downloads.architectures, :amd64) %>
       </div>
     </div>
 

lib/default.rb

@@ -24,21 +24,3 @@ module BlogHelper
   end
 end
 include BlogHelper
-
-module DownloadHelper
-  def format_bytes(bytes)
-    '%.2f MiB' % (bytes.to_f / 1024 / 1024)
-  end
-
-  def dropdown(name, items)
-    caption = %(<span class="caption">all</span> <span class="caret"></span>)
-    button = %(<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">#{caption}</button>)
-    default = %(<li><a href="#">all</a></li><li><a href="#">popular</a></li><li role="separator" class="divider"></li>)
-    list = %(<ul class="dropdown-menu">#{default} #{items.map { |i| %(<li><a href="#">#{i}</a></li>) }.join('') }</ul>)
-
-    %(<div class="btn-group #{name}">#{button} #{list}</div>)
-  end
-end
-include DownloadHelper
-
-

lib/helpers/download.rb

@@ -114,4 +114,25 @@ module Downloads
       @data['size']
     end
   end
+
+  module Helper
+    def format_bytes(bytes)
+      '%.2f MiB' % (bytes.to_f / 1024 / 1024)
+    end
+
+    def dropdown(name, items, default, groups = {})
+      additional = groups.map do |name, items|
+        %(<li data-group="#{items.join(' ')}"><a href="#">#{name}</a></li>)
+      end.join('')
+
+      caption = %(<span class="caption">#{default}</span> <span class="caret"></span>)
+      button = %(<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">#{caption}</button>)
+      header = %(<li><a href="#">all</a></li>#{additional}<li role="separator" class="divider"></li>)
+      list = %(<ul class="dropdown-menu">#{header} #{items.map { |i| %(<li><a href="#">#{i}</a></li>) }.join('') }</ul>)
+
+      %(<div class="btn-group #{name}">#{button} #{list}</div>)
+    end
+  end
 end
+
+include Downloads::Helper

static/docs.js

@@ -20,23 +20,25 @@ $(document).ready(function() {
     $(this).replaceWith(link);
   });
 
-  var selected = function(value, want, popular) {
+  var selected = function(value, want, group) {
     switch(want) {
     case 'all':
       return true;
-    case 'popular':
-      return popular.indexOf(value) > -1;
     default:
+      if (group.length > 0) {
+        return group.indexOf(value) > -1;
+      }
       return value === want;
     }
   }
   var selectDownloads = function() {
     var os = $('.download-selection .os .caption').text();
+    var osGroup = $('.download-selection .os li:contains("'+os+'")').data("group");
     var arch = $('.download-selection .arch .caption').text();
 
     $('.downloads tbody tr').each(function() {
-      if (selected($(this).data('os').toString(), os, ['darwin', 'linux', 'windows'])
-          && selected($(this).data('arch').toString(), arch, ['amd64'])) {
+      if (selected($(this).data('os').toString(), os, osGroup !== undefined ? osGroup.split(' ') : [])
+          && selected($(this).data('arch').toString(), arch, [])) {
         $(this).show();
       } else {
         $(this).hide();
@@ -44,7 +46,6 @@ $(document).ready(function() {
     });
   };
 
-  $('.download-selection button .caption').text('popular');
   selectDownloads();
 
   $('.download-selection a').on('click', function() {