Started replacing toolbar in OHIF Viewer with that of Lesion Tracker (OHIF-49)

Packages/worklist/client/components/worklistToolbar/worklistToolbar.html

@@ -5,7 +5,7 @@
             <label for="btnImport">
                 <i class="fa fa-plus"></i> Add new study
             </label>
-            <input id="btnImport" type="file" webkitdirectory directory multiple>
+            <input id="btnImport" class='js-import-files' type="file" webkitdirectory directory multiple>
         </div>
         {{/if }}
     </div>

Packages/worklist/client/components/worklistToolbar/worklistToolbar.js

@@ -1,34 +1,36 @@
+Template.worklistToolbar.onCreated(() => {
+    Meteor.call('importSupported', function(error, result) {
+        if (error || !result) {
+            Session.set('importSupported', false);
+        } else {
+            Session.set('importSupported', true);
+        }
+    });
+});
+
 Template.worklistToolbar.events({
-    'change #btnImport': function(e) {
+    'change .js-import-files'(event) {
         //  Get selected files located in the client machine
-        var selectedFiles = $.map(e.currentTarget.files, function(value) {
+        var selectedFiles = $.map(event.currentTarget.files, (value) => {
             return value;
         });
         
         importStudies(selectedFiles);
     },
 
-    'click #btnImport': function(e) {
+    'click .js-import-files'(event) {
         // Reset file input
-        var fileInput = e.currentTarget;
+        var fileInput = event.currentTarget;
         $(fileInput).val('');
     }
 });
 
 Template.worklistToolbar.helpers({
-    importSupported: function() {
+    importSupported() {
         var importSupported = Session.get('importSupported');
         var studyListFunctionsEnabled = Meteor.settings && Meteor.settings.public && Meteor.settings.public.ui &&
             Meteor.settings.public.ui.studyListFunctionsEnabled || false;
 
         return (importSupported && studyListFunctionsEnabled);
     }
-});
-
-Meteor.call('importSupported', function(err, result) {
-    if (!err && result) {
-        Session.set('importSupported', true);
-    } else {
-        Session.set('importSupported', false);
-    }
-});
+});