From 3f7fd1383e4d42accc29d497f4178a89a6d0f490 Mon Sep 17 00:00:00 2001
From: Miikka Heikkinen <miikka.heikkinen@qt.io>
Date: Fri, 15 Jan 2021 17:20:08 +0200
Subject: [PATCH] QmlDesigner: Fix crash when adding timeline and rootnode is
 not visual

Fixes: QDS-3355
Change-Id: I2d3c13b29895cc723ac5dd43bafec38ba5a99305
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
---
 .../components/timelineeditor/timelinesettingsmodel.cpp  | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/plugins/qmldesigner/components/timelineeditor/timelinesettingsmodel.cpp b/src/plugins/qmldesigner/components/timelineeditor/timelinesettingsmodel.cpp
index 308a8d5052a..5b636592db3 100644
--- a/src/plugins/qmldesigner/components/timelineeditor/timelinesettingsmodel.cpp
+++ b/src/plugins/qmldesigner/components/timelineeditor/timelinesettingsmodel.cpp
@@ -173,9 +173,12 @@ void TimelineSettingsModel::resetModel()
 
     if (timelineView()->isAttached()) {
         addState(ModelNode());
-        for (const QmlModelState &state :
-             QmlVisualNode(timelineView()->rootModelNode()).states().allStates())
-            addState(state);
+        QmlVisualNode visNode(timelineView()->rootModelNode());
+        if (visNode.isValid()) {
+            const auto allStates = visNode.states().allStates();
+            for (const QmlModelState &state : allStates)
+                addState(state);
+        }
     }
 
     endResetModel();