Merge branch 'label-tooltip-sidebar-collapsed' into 'master'

Added tooltip to label value in collapsed sidebar

## What does this MR do?

Adds a list of the issuables labels to a tooltip in the collapsed
sidebar. Limited to 5 otherwise the list could get crazy long.

Closes #19398

See merge request !5232

1 files changed, 9 insertions, 0 deletions

diff --git a/app/helpers/issuables_helper.rb b/app/helpers/issuables_helper.rb
index 47d174361db..b9baeb1d6c4 100644
--- a/app/helpers/issuables_helper.rb
+++ b/app/helpers/issuables_helper.rb
@@ -72,6 +72,15 @@ module IssuablesHelper
     end
   end
 
+  def issuable_labels_tooltip(labels, limit: 5)
+    first, last = labels.partition.with_index{ |_, i| i < limit  }
+
+    label_names = first.collect(&:name)
+    label_names << "and #{last.size} more" unless last.empty?
+
+    label_names.join(', ')
+  end
+
   private
 
   def sidebar_gutter_collapsed?