From 72747da5be40a61a2086e0f11744899c852ba5e9 Mon Sep 17 00:00:00 2001
From: greg <ghv2@psu.edu>
Date: Wed, 30 Dec 2020 15:10:56 -0500
Subject: [PATCH] Expand image formats for viewing in OpenSeadragon

---
 .../visualizations/openseadragon/config/openseadragon.xml      | 2 ++
 .../visualizations/openseadragon/templates/openseadragon.mako  | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/config/plugins/visualizations/openseadragon/config/openseadragon.xml b/config/plugins/visualizations/openseadragon/config/openseadragon.xml
index 269be91e01b..44eb69c13ae 100644
--- a/config/plugins/visualizations/openseadragon/config/openseadragon.xml
+++ b/config/plugins/visualizations/openseadragon/config/openseadragon.xml
@@ -5,8 +5,10 @@
     <data_sources>
         <data_source>
             <model_class>HistoryDatasetAssociation</model_class>
+            <test type="isinstance" test_attr="datatype" result_type="datatype">images.Gif</test>
             <test type="isinstance" test_attr="datatype" result_type="datatype">images.Jpg</test>
             <test type="isinstance" test_attr="datatype" result_type="datatype">images.Png</test>
+            <test type="isinstance" test_attr="datatype" result_type="datatype">images.Tiff</test>
             <test type="isinstance" test_attr="datatype" result_type="datatype">xml.Dzi</test>
             <to_param param_attr="id">dataset_id</to_param>
         </data_source>
diff --git a/config/plugins/visualizations/openseadragon/templates/openseadragon.mako b/config/plugins/visualizations/openseadragon/templates/openseadragon.mako
index 52ad53f4bfc..2011e55b46d 100644
--- a/config/plugins/visualizations/openseadragon/templates/openseadragon.mako
+++ b/config/plugins/visualizations/openseadragon/templates/openseadragon.mako
@@ -29,8 +29,9 @@
             const prefixUrl = "//openseadragon.github.io/openseadragon/images/";
             const simple_image_url = "${h.url_for(controller='/datasets', action='index')}/" + hda_id + "/display";
             const xmlns = "http://schemas.microsoft.com/deepzoom/2008";
+            const image_types = ["gif", "jpg", "png", "tiff"];
 
-            if (hda_ext == 'jpg' || hda_ext == 'png') {
+            if (image_types.indexOf(hda_ext) >= 0) {
                 var viewer = OpenSeadragon({
                     id: viewer_id,
                     prefixUrl: prefixUrl,