Fix responses list synchronization

src/widget.ts

@@ -239,8 +239,13 @@ class UploaderView extends DOMWidgetView {
         if (evt.target.error == null) {
           let slicedByteArray = removeHeader(evt.target.result);
           if (slicedByteArray == null) {
+            let responses = clone(that.model.get('responses'));
             responses[index] = 'Not a dicom file';
             that.model.set('responses', responses)
+
+            if (index == fileList.length - 1) {
+              that.model.set('finished', true);
+            }
             that.touch();
             return;
           }
@@ -267,6 +272,8 @@ class UploaderView extends DOMWidgetView {
           })
           .then(function (myJson) {
             console.log(JSON.stringify(myJson));
+
+            let responses = clone(that.model.get('responses'));
             responses[index] = 'ok';
             that.model.set('responses', responses)
 
@@ -279,6 +286,7 @@ class UploaderView extends DOMWidgetView {
           .catch(function (err) {
             console.log(err);
 
+            let responses = clone(that.model.get('responses'));
             responses[index] = err.status + ' ' + err.statusText;
             that.model.set('responses', responses)
 
@@ -301,7 +309,6 @@ class UploaderView extends DOMWidgetView {
     } 
     
     let fileList = this.model.get('fileList');
-    let responses = clone(this.model.get('responses'));
     fileList.forEach(function (file, index) {
       parseFile(file, index);
     });