Allow to skip login page if a single oidc provider is configured

modules/webapp/src/main/elm/Page/Login/Data.elm

@@ -36,6 +36,7 @@ type FormState
     | AuthFailed AuthResult
     | HttpError Http.Error
     | FormInitial
+    | OidcLogoutPending
 
 
 type AuthStep

modules/webapp/src/main/elm/Page/Login/Update.elm

@@ -85,13 +85,23 @@ update loginData flags msg model =
                 session =
                     Maybe.withDefault "" loginData.session
             in
-            -- A value of 2 indicates that TOTP is required
             if loginData.openid == 2 then
+                -- A value of 2 indicates that TOTP is required
                 ( { model | formState = FormInitial, authStep = StepOtp session, password = "" }
                 , Cmd.none
                 , Nothing
                 )
 
+            else if loginData.openid == 3 then
+                -- A valuo of 3 indicates a logout when a single
+                -- openid provider is configured with
+                -- oidcAutoredirect=true that doesn't have a logout
+                -- url configured
+                ( { model | password = "", formState = OidcLogoutPending }
+                , Ports.removeAccount ()
+                , Just empty
+                )
+
             else
                 ( { model | password = "", formState = HttpError err }
                 , Ports.removeAccount ()

modules/webapp/src/main/elm/Page/Login/View2.elm

@@ -95,7 +95,7 @@ openIdLinks texts flags =
             div [ class "mt-3" ]
                 [ B.horizontalDivider
                     { label = texts.or
-                    , topCss = "w-2/3 mb-4 hidden md:inline-flex w-full"
+                    , topCss = "w-full mb-4 hidden md:inline-flex w-full"
                     , labelCss = "px-4 bg-gray-200 bg-opacity-50"
                     , lineColor = "bg-gray-300 dark:bg-slate-600"
                     }
@@ -267,5 +267,10 @@ resultMessage texts model =
                 [ text (texts.httpError err)
                 ]
 
+        OidcLogoutPending ->
+            div [ class ("my-2 max-w-xs " ++ S.warnMessage) ]
+                [ text texts.oidcLogoutPending
+                ]
+
         FormInitial ->
             span [ class "hidden" ] []