ui improve

include/TransferState.hpp

@@ -6,6 +6,7 @@
 struct TransferState {
     std::atomic<bool>     done{false};
     std::atomic<bool>     cancelled{false};
+    std::atomic<bool>     connection_failed{false};
     std::atomic<uint64_t> bytes_done{0};
     std::atomic<uint64_t> bytes_total{0};
 
@@ -13,10 +14,11 @@ struct TransferState {
     mutable std::mutex status_mutex;
 
     void reset() {
-        done      = false;
-        cancelled = false;
-        bytes_done  = 0;
-        bytes_total = 0;
+        done             = false;
+        cancelled        = false;
+        connection_failed = false;
+        bytes_done       = 0;
+        bytes_total      = 0;
         std::lock_guard<std::mutex> lock(status_mutex);
         status.clear();
     }