Add viewing_hint support.

app/change_sets/scanned_resource_change_set.rb

@@ -5,7 +5,7 @@ class ScannedResourceChangeSet < Valkyrie::ChangeSet
   property :source_metadata_identifier, required: true, multiple: false
   property :rights_statement, multiple: false, required: true
   property :rights_note, multiple: false, required: false
-  property :viewing_hint, multiple: false, required: false
+  property :viewing_hint, multiple: false, required: false, default: "individuals"
   property :pdf_type, multiple: false, required: false
   property :holding_location, multiple: false, required: false
   property :viewing_direction, multiple: false, required: false

app/services/manifest_builder.rb

@@ -32,35 +32,41 @@ def file_set_presenters
       end
     end
 
+    def ranges
+      logical_structure.map do |top_structure|
+        TopStructure.new(top_structure)
+      end
+    end
+
     def manifest_url
       helper.polymorphic_url([:manifest, resource])
     end
 
-    def helper
-      @helper ||= ManifestHelper.new
+    def viewing_hint
+      Array(resource.viewing_hint).first
     end
 
-    def members
-      @members ||= query_service.find_members(resource: resource).to_a
-    end
+    private
 
-    def leaf_nodes
-      @leaf_nodes ||= members.select { |x| x.instance_of?(FileSet) }
-    end
+      def helper
+        @helper ||= ManifestHelper.new
+      end
 
-    def metadata_adapter
-      Valkyrie.config.metadata_adapter
-    end
+      def members
+        @members ||= query_service.find_members(resource: resource).to_a
+      end
 
-    def ranges
-      logical_structure.map do |top_structure|
-        TopStructure.new(top_structure)
+      def leaf_nodes
+        @leaf_nodes ||= members.select { |x| x.instance_of?(FileSet) }
       end
-    end
 
-    def logical_structure
-      resource.logical_structure || []
-    end
+      def metadata_adapter
+        Valkyrie.config.metadata_adapter
+      end
+
+      def logical_structure
+        resource.logical_structure || []
+      end
   end
 
   class TopStructure

spec/services/manifest_builder_spec.rb

@@ -48,6 +48,7 @@ def logical_structure(file_set_id)
     it "generates a IIIF document" do
       output = manifest_builder.build
       expect(output).to be_kind_of Hash
+      expect(output["viewingHint"]).to eq "individuals"
       expect(output["sequences"].length).to eq 1
       canvas_id = output["sequences"][0]["canvases"][0]["@id"]
       expect(output["structures"].length).to eq 3