diff --git a/src/libs/qmljs/qmljsmodelmanagerinterface.cpp b/src/libs/qmljs/qmljsmodelmanagerinterface.cpp
index 8ceecc3b68c..b24478797bf 100644
--- a/src/libs/qmljs/qmljsmodelmanagerinterface.cpp
+++ b/src/libs/qmljs/qmljsmodelmanagerinterface.cpp
@@ -629,6 +629,11 @@ ModelManagerInterface::ProjectInfo ModelManagerInterface::projectInfoForPath(QSt
     return res;
 }
 
+bool ModelManagerInterface::isIdle() const
+{
+    return m_synchronizer.futures().isEmpty();
+}
+
 void ModelManagerInterface::emitDocumentChangedOnDisk(Document::Ptr doc)
 { emit documentChangedOnDisk(doc); }
 
diff --git a/src/libs/qmljs/qmljsmodelmanagerinterface.h b/src/libs/qmljs/qmljsmodelmanagerinterface.h
index c00bc0b966d..3986beb1d09 100644
--- a/src/libs/qmljs/qmljsmodelmanagerinterface.h
+++ b/src/libs/qmljs/qmljsmodelmanagerinterface.h
@@ -182,6 +182,7 @@ public:
     void emitDocumentChangedOnDisk(QmlJS::Document::Ptr doc);
     void updateQrcFile(const QString &path);
     ProjectInfo projectInfoForPath(QString path) const;
+    bool isIdle() const ;
 
     PathsAndLanguages importPaths() const;
     QmlJS::QmlLanguageBundles activeBundles() const;