Merge pull request #2625 from sul-dlss/2483-iiif-link

make sure iiif drag and drop has aria-label

app/helpers/application_helper.rb

@@ -18,10 +18,11 @@ def document_leaflet_map(document:, **)
 
   ##
   # @param [String] manifest
-  def iiif_drag_n_drop(manifest, width: '40')
+  def iiif_drag_n_drop(manifest, width: '40', document: nil)
     link_url = format Settings.iiif_dnd_base_url, query: { manifest: manifest }.to_query
-    link_to link_url, class: 'iiif-dnd float-right', data: { turbolinks: false } do
-      image_tag 'iiif-drag-n-drop.svg', width: width, alt: 'IIIF Drag-n-drop'
+    link_to link_url, class: 'iiif-dnd float-right', data: { turbolinks: false },
+                      aria: { label: "IIIF Drag-n-drop: #{document['title_display']}" } do
+      image_tag 'iiif-drag-n-drop.svg', width: width, alt: ''
     end
   end
 

app/views/catalog/_embedded_mirador3.html.erb

@@ -10,5 +10,5 @@
         scrolling: 'no',
         width: '100%'
         %>
-  <%= iiif_drag_n_drop(manifest_url) %>
+  <%= iiif_drag_n_drop(manifest_url, document:) %>
 <% end %>

app/views/catalog/_exhibits_document_header_default.html.erb

@@ -8,6 +8,6 @@
   <div class='col-2 col-md-1'>
     <% exhibit_specific_manifest = document.exhibit_specific_manifest(current_exhibit&.required_viewer&.custom_manifest_pattern) %>
 
-    <%= iiif_drag_n_drop(exhibit_specific_manifest, width: '30') if exhibit_specific_manifest %>
+    <%= iiif_drag_n_drop(exhibit_specific_manifest, document:, width: '30') if exhibit_specific_manifest %>
   </div>
 </div>

app/views/viewers/_mirador3.html.erb

@@ -11,5 +11,5 @@
         scrolling: 'no',
         width: '100%'
         %>
-  <%= iiif_drag_n_drop(exhibit_specific_manifest) %>
+  <%= iiif_drag_n_drop(exhibit_specific_manifest, document:) %>
 <% end %>