From fdc9e00c544f2822bd5528fe11ad175c3d1ae660 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Fri, 1 May 2020 19:37:33 -0700
Subject: [PATCH] Add a friendly error message when no video traffic is
 received

---
 .../StreamFrameViewController.m               | 33 +++++++++++++++----
 moonlight-common/moonlight-common-c           |  2 +-
 2 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/Limelight/ViewControllers/StreamFrameViewController.m b/Limelight/ViewControllers/StreamFrameViewController.m
index 0744638..a85d8ab 100644
--- a/Limelight/ViewControllers/StreamFrameViewController.m
+++ b/Limelight/ViewControllers/StreamFrameViewController.m
@@ -236,15 +236,34 @@
     dispatch_async(dispatch_get_main_queue(), ^{
         // Allow the display to go to sleep now
         [UIApplication sharedApplication].idleTimerDisabled = NO;
-        if (errorCode == 0) {
-            [self returnToMainFrame];
-        } else {
-            UIAlertController* conTermAlert = [UIAlertController alertControllerWithTitle:@"Connection Terminated" message:@"The connection was terminated" preferredStyle:UIAlertControllerStyleAlert];
-            [conTermAlert addAction:[UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction* action){
+        
+        NSString* title;
+        NSString* message;
+        
+        switch (errorCode) {
+            case ML_ERROR_GRACEFUL_TERMINATION:
                 [self returnToMainFrame];
-            }]];
-            [self presentViewController:conTermAlert animated:YES completion:nil];
+                return;
+                
+            case ML_ERROR_NO_VIDEO_TRAFFIC:
+                title = @"Connection Error";
+                message = @"No video received from host. Check the host PC's firewall and port forwarding rules.";
+                break;
+                
+            default:
+                title = @"Connection Terminated";
+                message = @"The connection was terminated";
+                break;
         }
+        
+        UIAlertController* conTermAlert = [UIAlertController alertControllerWithTitle:title
+                                                                              message:message
+                                                                       preferredStyle:UIAlertControllerStyleAlert];
+        [Utils addHelpOptionToDialog:conTermAlert];
+        [conTermAlert addAction:[UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction* action){
+            [self returnToMainFrame];
+        }]];
+        [self presentViewController:conTermAlert animated:YES completion:nil];
     });
 
     [_streamMan stopStream];
diff --git a/moonlight-common/moonlight-common-c b/moonlight-common/moonlight-common-c
index 247b1fe..b46e06f 160000
--- a/moonlight-common/moonlight-common-c
+++ b/moonlight-common/moonlight-common-c
@@ -1 +1 @@
-Subproject commit 247b1fe0e32d80ce02ede4c2b4a835b9c085abe4
+Subproject commit b46e06fcf1b289bb6a3b2307c10e1a7274c5f3b5