feat(thumbnails): Enhance DICOM Thumbnail Rendering with different strategies (#5004)

Co-authored-by: Martin Bellehumeur, M. Eng. <23396581+mbellehumeur@users.noreply.github.com>

extensions/cornerstone/src/getSopClassHandlerModule.js

@@ -17,6 +17,7 @@ const SOPClassHandlerId =
   '@ohif/extension-cornerstone.sopClassHandlerModule.DicomMicroscopySopClassHandler';
 
 function _getDisplaySetsFromSeries(instances, servicesManager, extensionManager) {
+  const dataSource = extensionManager.getActiveDataSource()[0];
   // If the series has no instances, stop here
   if (!instances || !instances.length) {
     throw new Error('No instances were provided');
@@ -33,22 +34,6 @@ function _getDisplaySetsFromSeries(instances, servicesManager, extensionManager)
       currentFrames = framesI;
     }
   }
-  let imageIdForThumbnail = null;
-  const dataSource = extensionManager.getActiveDataSource()[0];
-  if (singleFrameInstance) {
-    if (currentFrames == 1) {
-      // Not all DICOM server implementations support thumbnail service,
-      // So if we have a single-frame image, we will prefer it.
-      imageIdForThumbnail = singleFrameInstance.imageId;
-    }
-    if (!imageIdForThumbnail) {
-      // use the thumbnail service provided by DICOM server
-      imageIdForThumbnail = dataSource.getImageIdsForInstance({
-        instance: singleFrameInstance,
-        thumbnail: true,
-      });
-    }
-  }
 
   const {
     FrameOfReferenceUID,
@@ -108,11 +93,14 @@ function _getDisplaySetsFromSeries(instances, servicesManager, extensionManager)
     instance,
     numImageFrames: 0,
     numInstances: 1,
-    imageIdForThumbnail, // thumbnail image
     others: instances, // all other level instances in the image Pyramid
     instances,
     othersFrameOfReferenceUID,
     imageIds: instances.map(instance => instance.imageId),
+    getThumbnailSrc: dataSource.retrieve.getGetThumbnailSrc?.(
+      singleFrameInstance,
+      singleFrameInstance.imageId
+    ),
     label: SeriesDescription || `${i18n.t('Series')} ${SeriesNumber} - ${i18n.t('SM')}`,
   };
   // The microscopy viewer directly accesses the metadata already loaded, and