AssetExport: Notify parser failure

Change-Id: I76ed8b423c91b4ba3d5287153016ea6f1a820c8a
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

src/plugins/qmldesigner/assetexporterplugin/componentexporter.cpp

@@ -25,6 +25,7 @@
 #include "componentexporter.h"
 #include "assetexporter.h"
 #include "assetexportpluginconstants.h"
+#include "exportnotification.h"
 #include "parsers/modelnodeparser.h"
 
 #include "model.h"
@@ -113,6 +114,9 @@ QJsonObject Component::nodeToJson(const ModelNode &node)
             node.model()->rewriterView()->writeAuxiliaryData();
         }
         jsonObject = parser->json(*this);
+    } else {
+        ExportNotification::addError(tr("Error exporting component %1. Parser unavailable.")
+                                     .arg(node.id()));
     }
 
     QJsonArray children;

src/plugins/qmldesigner/assetexporterplugin/componentexporter.h

@@ -24,8 +24,9 @@
 ****************************************************************************/
 #pragma once
 
-#include <QJsonObject>
 #include <QByteArrayList>
+#include <QCoreApplication>
+#include <QJsonObject>
 
 #include <memory>
 
@@ -67,6 +68,8 @@ protected:
 
 class Component
 {
+    Q_DECLARE_TR_FUNCTIONS(Component);
+
 public:
     Component(AssetExporter& exporter, const ModelNode &rootNode);