1 files changed, 21 insertions, 0 deletions
diff --git a/lib/gitlab/relative_positioning/gap.rb b/lib/gitlab/relative_positioning/gap.rb
new file mode 100644
index 00000000000..ab894141a60
--- /dev/null
+++ b/lib/gitlab/relative_positioning/gap.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+#
+module Gitlab
+  module RelativePositioning
+    class Gap
+      attr_reader :start_pos, :end_pos
+
+      def initialize(start_pos, end_pos)
+        @start_pos, @end_pos = start_pos, end_pos
+      end
+
+      def ==(other)
+        other.is_a?(self.class) && other.start_pos == start_pos && other.end_pos == end_pos
+      end
+
+      def delta
+        ((start_pos - end_pos) / 2.0).abs.ceil.clamp(0, RelativePositioning::IDEAL_DISTANCE)
+      end
+    end
+  end
+end