From 5309d5fa7f2111faa834aec92026323f3e6ed50e Mon Sep 17 00:00:00 2001
From: Ben Olden-Cooligan <ben.cyanfish@gmail.com>
Date: Sun, 7 Apr 2024 12:10:44 -0700
Subject: [PATCH] Escl: Throw DeviceOfflineException when a connection times
 out

---
 NAPS2.Sdk/Scan/Internal/Escl/EsclScanDriver.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/NAPS2.Sdk/Scan/Internal/Escl/EsclScanDriver.cs b/NAPS2.Sdk/Scan/Internal/Escl/EsclScanDriver.cs
index 9b7370a3f6..753b84ba43 100644
--- a/NAPS2.Sdk/Scan/Internal/Escl/EsclScanDriver.cs
+++ b/NAPS2.Sdk/Scan/Internal/Escl/EsclScanDriver.cs
@@ -141,6 +141,13 @@ public async Task GetDevices(ScanOptions options, CancellationToken cancelToken,
                 throw;
             }
         }
+        catch (HttpRequestException ex) when (ex.InnerException is TaskCanceledException)
+        {
+            // A connection timeout manifests as TaskCanceledException
+            // TODO: Do we want to add a DeviceCommunicationException? It might be more appropriate here
+            // (and maps to WIA too)
+            throw new DeviceOfflineException();
+        }
         catch (TaskCanceledException)
         {
         }