From 5b2aa9926f04ab861cf3b0bb144b468ece268ec6 Mon Sep 17 00:00:00 2001
From: dg <dg>
Date: Sun, 26 Mar 2023 18:50:14 +0000
Subject: [PATCH] Robustness and warning fixes.

---
 src/gui/main.cc       | 13 ++++++++++---
 src/gui/mainwindow.cc |  3 +++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/gui/main.cc b/src/gui/main.cc
index 324fdecb..854f0c35 100644
--- a/src/gui/main.cc
+++ b/src/gui/main.cc
@@ -122,9 +122,16 @@ bool FluxEngineApp::IsWorkerThreadRunning() const
 
 void FluxEngineApp::OnExec(const ExecEvent& event)
 {
-    event.RunCallback();
-    if (event.IsSynchronous())
-        execSemaphore.Post();
+    try
+    {
+        event.RunCallback();
+        if (event.IsSynchronous())
+            execSemaphore.Post();
+    }
+    catch (std::exception& e)
+    {
+        std::cerr << "Unhandled exception: " << e.what() << "\n";
+    }
 }
 
 void runOnUiThread(std::function<void()> callback)
diff --git a/src/gui/mainwindow.cc b/src/gui/mainwindow.cc
index 543a51b4..1881a7f6 100644
--- a/src/gui/mainwindow.cc
+++ b/src/gui/mainwindow.cc
@@ -481,6 +481,9 @@ public:
             visualiser->Clear();
             _filesystemModel->Clear(Path());
             _currentDisk = nullptr;
+            _filesystemCapabilities = 0;
+            _filesystemIsReadOnly = true;
+            _filesystemNeedsFlushing = false;
 
             _state = STATE_BROWSING_WORKING;
             UpdateState();