- Do not attempt to get studies metadata if ViewerData already has studies property and use it to view studies in tab (for cases when a tab is opened with metadata externally)

- Add showStudyListTab helper whether to show StudyListTab in worklist template - it is shown by default (it is not shown only if "data.showStudyListTab" is set to false when rendering worklist template)

Packages/worklist/client/components/worklist.html

@@ -1,18 +1,22 @@
 <template name="worklist">
     <ul class="nav noselect" role="tablist" id="tablist">
+        {{#if showStudyListTab }}
             <li role="presentation" class="tabTitle active">
                 <a data-target="#worklistTab" role="tab" data-toggle="tab">Study List</a>
             </li>
+        {{/if}}
         {{#each worklistTabs }}
             {{>tabTitle }}
         {{/each }}
     </ul>
     <div id="worklistTabs" class="tab-content">
+        {{#if showStudyListTab }}
             <div role="tabpanel" class="tab-pane active" id="worklistTab">
                 <div class="worklistContainer">
                     {{> worklistResult }}
                 </div>
             </div>
+        {{/if}}
         {{#each worklistTabs }}
             {{>tabContent }}
         {{/each }}

Packages/worklist/client/components/worklist.js

@@ -43,6 +43,20 @@ Template.worklist.helpers({
      */
     worklistTabs: function() {
         return WorklistTabs.find();
+    },
+    showStudyListTab: function() {
+        // StudyListTab is shown by default
+        const instance = Template.instance();
+        if (!instance.data) {
+            return true;
+        }
+
+        var showStudyListTab = instance.data.showStudyListTab;
+        if (showStudyListTab === undefined) {
+            return true;
+        }
+
+        return showStudyListTab;
     }
 });
 

Packages/worklist/client/lib/switchToTab.js

@@ -47,12 +47,24 @@ switchToTab = function(contentId) {
         return;
     }
 
+    var studies = ViewerData[contentId].studies;
+
+    if (studies) {
+        // ViewerData already has the meta data (in cases when worklist is launched externally)
+        viewStudiesInTab(contentId, studies);
+    } else {
         // Use the stored ViewerData global object to retrieve the studyInstanceUid
         // related to this tab
         var studyInstanceUids = ViewerData[contentId].studyInstanceUids;
 
         // Attempt to retrieve the meta data (it might be cached)
         getStudiesMetadata(studyInstanceUids, function(studies) {
+            viewStudiesInTab(contentId, studies);
+        });
+    }
+};
+
+function viewStudiesInTab(contentId, studies) {
     // Tab closed while study data was being retrieved, stop here
     if (!ViewerData[contentId]) {
         log.warn('Tab closed while study data was being retrieved');
@@ -69,7 +81,6 @@ switchToTab = function(contentId) {
         data.studies = ViewerData[contentId].studies;
     }
 
-
     // Add additional metadata to our study from the worklist
     data.studies.forEach(function(study) {
         var worklistStudy = WorklistStudies.findOne({
@@ -114,5 +125,4 @@ switchToTab = function(contentId) {
         // Prevent overscroll on mobile devices
         document.body.style.position = 'fixed';
     }
-    });
+}
-};