Port `read_cross_project` ability from EE

1 files changed, 32 insertions, 0 deletions

diff --git a/app/helpers/nav_helper.rb b/app/helpers/nav_helper.rb
index 680ea96a556..56c88e6eab0 100644
--- a/app/helpers/nav_helper.rb
+++ b/app/helpers/nav_helper.rb
@@ -1,4 +1,12 @@
 module NavHelper
+  def header_links
+    @header_links ||= get_header_links
+  end
+
+  def header_link?(link)
+    header_links.include?(link)
+  end
+
   def page_with_sidebar_class
     class_name = page_gutter_class
     class_name << 'page-with-contextual-sidebar' if defined?(@left_sidebar) && @left_sidebar
@@ -38,4 +46,28 @@ module NavHelper
 
     class_names
   end
+
+  private
+
+  def get_header_links
+    links = if current_user
+              [:user_dropdown]
+            else
+              [:sign_in]
+            end
+
+    if can?(current_user, :read_cross_project)
+      links += [:issues, :merge_requests, :todos] if current_user.present?
+    end
+
+    if @project&.persisted? || can?(current_user, :read_cross_project)
+      links << :search
+    end
+
+    if session[:impersonator_id]
+      links << :admin_impersonation
+    end
+
+    links
+  end
 end