QmlDesigner: Fix crash

There may exist components that do not belong to any project.

Task-number: QTCREATORBUG-26166
Change-Id: I77f5ec9c5d718300a38db203f9b5d1b1a4e96d1f
Reviewed-by: Tapani Mattila <tapani.mattila@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

1 files changed, 14 insertions, 2 deletions

diff --git a/src/plugins/qmldesigner/components/navigator/navigatorview.cpp b/src/plugins/qmldesigner/components/navigator/navigatorview.cpp
index ada432401e..2606ea83a4 100644
--- a/src/plugins/qmldesigner/components/navigator/navigatorview.cpp
+++ b/src/plugins/qmldesigner/components/navigator/navigatorview.cpp
@@ -184,7 +184,8 @@ void NavigatorView::clearExplorerWarnings()
     for (ModelNode node : allNodes) {
         if (node.metaInfo().isFileComponent()) {
             const ProjectExplorer::FileNode *fnode = fileNodeForModelNode(node);
-            fnode->setHasError(false);
+            if (fnode)
+                fnode->setHasError(false);
         }
     }
 }
@@ -406,7 +407,18 @@ const ProjectExplorer::FileNode *NavigatorView::fileNodeForModelNode(const Model
 {
     QString filename = node.metaInfo().componentFileName();
     Utils::FilePath filePath = Utils::FilePath::fromString(filename);
-    ProjectExplorer::Project *currentProject = ProjectExplorer::SessionManager::projectForFile(filePath);
+    ProjectExplorer::Project *currentProject = ProjectExplorer::SessionManager::projectForFile(
+        filePath);
+
+    if (!currentProject) {
+        filePath = Utils::FilePath::fromString(node.model()->fileUrl().toLocalFile());
+
+        /* If the component does not belong to the project then we can fallback to the current file */
+        currentProject = ProjectExplorer::SessionManager::projectForFile(filePath);
+    }
+    if (!currentProject)
+        return nullptr;
+
     return currentProject->nodeForFilePath(filePath)->asFileNode();
 }