[gnome-boxes/vnc-notify-auth-failure: 2/2] vnc-display, machine: Notify when authentication failed

[Felipe Borges <felipeborges src gnome org>]

commit 1873d34ff63eba8dacccf27d93ea662dfe234d96
Author: Felipe Borges <felipeborges gnome org>
Date:   Mon Dec 16 15:43:27 2019 +0100

    vnc-display, machine: Notify when authentication failed
    
    Fixes #446

 src/display.vala     | 2 +-
 src/machine.vala     | 7 ++++++-
 src/vnc-display.vala | 4 ++--
 3 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/src/display.vala b/src/display.vala
index 31fc1ed9..cddf640b 100644
--- a/src/display.vala
+++ b/src/display.vala
@@ -20,7 +20,7 @@
     public signal void hide (int display_id);
     public signal void disconnected (bool connection_failed);
     public signal void got_error (string message);
-    public signal void auth_failed ();
+    public signal void auth_failed (string? message = null);
 
     public delegate int OpenFDFunc ();
 
diff --git a/src/machine.vala b/src/machine.vala
index 9ec28537..50c2644b 100644
--- a/src/machine.vala
+++ b/src/machine.vala
@@ -212,7 +212,12 @@ protected void show_display () {
                     got_error (message);
             });
 
-            auth_failed_id = _display.auth_failed.connect (() => { delete_auth_credentials.begin (); });
+            auth_failed_id = _display.auth_failed.connect ((message) => {
+                delete_auth_credentials.begin ();
+
+                window.set_state (Boxes.UIState.COLLECTION);
+                window.notificationbar.display_error (_("Authentication failed: %s").printf (message));
+            });
 
             disconnected_id = _display.disconnected.connect ((failed) => {
                 message (@"display $name disconnected");
diff --git a/src/vnc-display.vala b/src/vnc-display.vala
index 98585d23..55244a1a 100644
--- a/src/vnc-display.vala
+++ b/src/vnc-display.vala
@@ -40,13 +40,13 @@
             disconnected (true);
         });
 
-        display.vnc_auth_failure.connect (() => {
+        display.vnc_auth_failure.connect ((message) => {
             debug ("auth failure");
 
             need_password = (password != null);
             need_username = (username != null);
 
-            auth_failed ();
+            auth_failed (message);
         });
         display.vnc_auth_unsupported.connect (() => {
             debug ("auth unsupported");