feat: Add a new hanging protocol @ohif/mn (#3305)

* feat: Add a new hanging protocol @ohif/mn

* Add @ohif/seg example

* PR comments and a couple more fixes to make things cleaner

* PR comment

* Added an example to cause the PR checks to rerun

platform/core/src/services/HangingProtocolService/HangingProtocolService.ts

@@ -9,7 +9,9 @@ import * as HangingProtocol from '../../types/HangingProtocol';
 import {
   isDisplaySetFromUrl,
   sopInstanceLocation,
-} from './isDisplaySetFromUrl';
+} from './custom-attribute/isDisplaySetFromUrl';
+import numberOfDisplaySetsWithImages from './custom-attribute/numberOfDisplaySetsWithImages';
+import seriesDescriptionsFromDisplaySets from './custom-attribute/seriesDescriptionsFromDisplaySets';
 
 type Protocol = HangingProtocol.Protocol | HangingProtocol.ProtocolGenerator;
 
@@ -93,6 +95,16 @@ export default class HangingProtocolService extends PubSubService {
       name: 'Gets the position of the specified sop instance',
       callback: sopInstanceLocation,
     },
+    seriesDescriptions: {
+      name: 'seriesDescriptions',
+      description: 'List of Series Descriptions',
+      callback: seriesDescriptionsFromDisplaySets,
+    },
+    numberOfDisplaySetsWithImages: {
+      name: 'numberOfDisplaySetsWithImages',
+      desription: 'Number of displays sets with images',
+      numberOfDisplaySetsWithImages,
+    },
   };
   listeners = {};
   registeredImageLoadStrategies = {};

platform/core/src/services/HangingProtocolService/custom-attribute/isDisplaySetFromUrl.ts

@@ -1,4 +1,4 @@
-import { getSplitParam } from '../../utils';
+import { getSplitParam } from '../../../utils';
 
 /** Indicates if the given display set is the one specified in the
  * displaySet parameter in the URL
@@ -31,7 +31,7 @@ const isDisplaySetFromUrl = (displaySet): boolean => {
  * Returns undefined to fallback to the defaultValue
  */
 function sopInstanceLocation(displaySets) {
-  const displaySet = displaySets[0];
+  const displaySet = displaySets?.[0];
   if (!displaySet) return;
   const initialSOPInstanceUID = getSplitParam('initialsopinstanceuid');
   if (!initialSOPInstanceUID) return;

platform/core/src/services/HangingProtocolService/custom-attribute/numberOfDisplaySetsWithImages.ts

@@ -0,0 +1,5 @@
+export default (study, extraData) => {
+  const ret = extraData?.displaySets?.filter(ds => ds.numImageFrames>0)?.length;
+  console.log("number of display sets with images", ret);
+  return ret;
+};

platform/core/src/services/HangingProtocolService/custom-attribute/seriesDescriptionsFromDisplaySets.ts

@@ -0,0 +1 @@
+export default (study, extraData) => extraData?.displaySets?.map(ds => ds.SeriesDescription);