Gab Social. All are welcome.

app/serializers/activitypub/image_serializer.rb

@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class ActivityPub::ImageSerializer < ActivityPub::Serializer
+  include RoutingHelper
+
+  context_extensions :focal_point
+
+  attributes :type, :media_type, :url
+  attribute :focal_point, if: :focal_point?
+
+  def type
+    'Image'
+  end
+
+  def url
+    full_asset_url(object.url(:original))
+  end
+
+  def media_type
+    object.content_type
+  end
+
+  def focal_point?
+    object.respond_to?(:meta) && object.meta.is_a?(Hash) && object.meta['focus'].is_a?(Hash)
+  end
+
+  def focal_point
+    [object.meta['focus']['x'], object.meta['focus']['y']]
+  end
+end