Add a .container over the widget in defaultLayout

Foundation.hs

@@ -83,18 +83,11 @@ deriving instance Show Progress
 
 type Form x = Html -> MForm (HandlerT App IO) (FormResult x, Widget)
 
--- Please see the documentation for the Yesod typeclass. There are a number
--- of settings which can be configured by overriding methods here.
-instance Yesod App where
-    approot = ApprootMaster $ appRoot . settings
+defaultLayoutNoContainer :: Widget -> Handler Html
+defaultLayoutNoContainer = defaultLayoutWithContainer False
 
-    -- Store session data on the client in encrypted cookies,
-    -- default session idle timeout is 120 minutes
-    makeSessionBackend _ = fmap Just $ defaultClientSessionBackend
-        (120 * 60) -- 120 minutes
-        "config/client_session_key.aes"
-
-    defaultLayout widget = do
+defaultLayoutWithContainer :: Bool -> Widget -> Handler Html
+defaultLayoutWithContainer insideContainer widget = do
     mmsg <- getMessage
     muser <- catch maybeAuth $ \e -> case e of
         Couldn'tGetSQLConnection -> return Nothing
@@ -124,6 +117,19 @@ instance Yesod App where
 
     withUrlRenderer $(hamletFile "templates/default-layout-wrapper.hamlet")
 
+-- Please see the documentation for the Yesod typeclass. There are a number
+-- of settings which can be configured by overriding methods here.
+instance Yesod App where
+    approot = ApprootMaster $ appRoot . settings
+
+    -- Store session data on the client in encrypted cookies,
+    -- default session idle timeout is 120 minutes
+    makeSessionBackend _ = fmap Just $ defaultClientSessionBackend
+        (120 * 60) -- 120 minutes
+        "config/client_session_key.aes"
+
+    defaultLayout = defaultLayoutWithContainer True
+
     -- This is done to provide an optimization for serving static files from
     -- a separate domain. Please see the staticRoot setting in Settings.hs
     urlRenderOverride y (StaticR s) =

templates/default-layout.hamlet

@@ -41,6 +41,10 @@ $case cur
           <p>Please login with an authorization method below:
           ^{widget}
   $of _
+    $if insideContainer
+      <div .container>
+        ^{widget}
+    $else
       ^{widget}
 
 <div .footer>