Add detail to collapsed icons

app/assets/stylesheets/pages/issuable.scss

@@ -169,10 +169,28 @@
 
   &.right-sidebar-expanded {
     width: $gutter_width;
+
+    hr {
+      display: none;
+    }
   }
 
   &.right-sidebar-collapsed {
     width: $sidebar_collapsed_width;
+    padding-top: 0;
+
+    hr {
+      margin: 0;
+      color: $gray-normal;
+      border-color: $gray-normal;
+      width: 62px;
+      margin-left: -20px
+    }
+
+    .block {
+      border-bottom: none;
+      padding: 15px 0 0 0;
+    }
   }
 
   .btn {
@@ -202,7 +220,12 @@
       width: 62px;
       text-align: center;
       margin-left: -19px;
-}
+      padding-bottom: 10px;
+
+      span {
+        display: block;
+        margin-top: 0;
+      }
     }
 
   }

app/helpers/projects_helper.rb

@@ -20,6 +20,12 @@ module ProjectsHelper
     end
   end
 
+  def link_to_member_avatar(author, opts = {})
+    default_opts = { avatar: true, name: true, size: 16, author_class: 'author', title: ":name" }
+    opts = default_opts.merge(opts)
+    image_tag(avatar_icon(author, opts[:size]), width: opts[:size], class: "avatar avatar-inline #{"s#{opts[:size]}" if opts[:size]}", alt:'') if opts[:avatar]
+  end
+
   def link_to_member(project, author, opts = {})
     default_opts = { avatar: true, name: true, size: 16, author_class: 'author', title: ":name" }
     opts = default_opts.merge(opts)

app/views/shared/issuable/_participants.html.haml

 .block.participants
   .sidebar-collapsed-icon
     = icon('users')
+    %span
+      = participants.count
   .title
     = pluralize participants.count, "participant"
   - participants.each do |participant|

app/views/shared/issuable/_sidebar.html.haml

@@ -26,7 +26,10 @@
     = form_for [@project.namespace.becomes(Namespace), @project, issuable], remote: true, html: {class: 'issuable-context-form inline-update js-issuable-update'} do |f|
       .block.assignee
         .sidebar-collapsed-icon
-          = icon('user')
+          - if issuable.assignee
+            = link_to_member_avatar(issuable.assignee, size: 24)
+          - else
+            = icon('user')
         .title
           %label
             Assignee
@@ -48,6 +51,11 @@
       .block.milestone
         .sidebar-collapsed-icon
           = icon('balance-scale')
+          %span
+            - if issuable.milestone
+              = issuable.milestone.title
+            - else
+              No
         .title
           %label
             Milestone
@@ -72,6 +80,8 @@
         .block.labels
           .sidebar-collapsed-icon
             = icon('tags')
+            %span
+              = issuable.labels.count
           .title
             %label Labels
             - if can?(current_user, :"admin_#{issuable.to_ability_name}", @project)
@@ -88,7 +98,7 @@
               { selected: issuable.label_ids }, multiple: true, class: 'select2 js-select2', data: { placeholder: "Select labels" }
 
       = render "shared/issuable/participants", participants: issuable.participants(current_user)
-
+      %hr
       - if current_user
         - subscribed = issuable.subscribed?(current_user)
         .block.light