Breadcrumbs widget in default layout

src/Vervis/Foundation.hs

@@ -17,7 +17,6 @@ module Vervis.Foundation where
 
 import Prelude (init, last)
 
-import Vervis.Import.NoFoundation hiding (last)
 import Database.Persist.Sql (ConnectionPool, runSqlPool)
 import Text.Hamlet          (hamletFile)
 import Text.Jasmine         (minifym)
@@ -31,6 +30,9 @@ import qualified Yesod.Core.Unsafe as Unsafe
 import Data.Text as T (pack)
 --import qualified Data.Text.Encoding as TE
 
+import Vervis.Import.NoFoundation hiding (last)
+import Vervis.Widget (breadcrumbBar)
+
 -- | The foundation datatype for your application. This can be a good place to
 -- keep settings and values requiring initialization before your application
 -- starts running, such as database connections. Every handler will have

src/Vervis/Widget.hs

@@ -0,0 +1,33 @@
+{- This file is part of Vervis.
+ -
+ - Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
+ -
+ - ♡ Copying is an act of love. Please copy, reuse and share.
+ -
+ - The author(s) have dedicated all copyright and related and neighboring
+ - rights to this software to the public domain worldwide. This software is
+ - distributed without any warranty.
+ -
+ - You should have received a copy of the CC0 Public Domain Dedication along
+ - with this software. If not, see
+ - <http://creativecommons.org/publicdomain/zero/1.0/>.
+ -}
+
+-- | Various custom widgets.
+module Vervis.Widget
+    ( breadcrumbBar
+    )
+where
+
+import Prelude
+
+import Yesod.Core (YesodBreadcrumbs, breadcrumbs)
+import Yesod.Core.Widget
+
+import Vervis.Settings (widgetFile)
+import Vervis.Style
+
+breadcrumbBar :: YesodBreadcrumbs site => WidgetT site IO ()
+breadcrumbBar = do
+    (current, bcs) <- handlerToWidget breadcrumbs
+    $(widgetFile "breadcrumbs")

templates/breadcrumbs.cassius

@@ -0,0 +1,22 @@
+/* This file is part of Vervis.
+ *
+ * Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
+ *
+ * ♡ Copying is an act of love. Please copy, reuse and share.
+ *
+ * The author(s) have dedicated all copyright and related and neighboring
+ * rights to this software to the public domain worldwide. This software is
+ * distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
+ */
+
+.parents
+    color: #{dark yellow}
+    font:  160% monospace
+
+.title
+    color: #{dark yellow}
+    font:  160% monospace

templates/breadcrumbs.hamlet

@@ -0,0 +1,20 @@
+$# This file is part of Vervis.
+$#
+$# Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
+$#
+$# ♡ Copying is an act of love. Please copy, reuse and share.
+$#
+$# The author(s) have dedicated all copyright and related and neighboring
+$# rights to this software to the public domain worldwide. This software is
+$# distributed without any warranty.
+$#
+$# You should have received a copy of the CC0 Public Domain Dedication along
+$# with this software. If not, see
+$# <http://creativecommons.org/publicdomain/zero/1.0/>.
+
+<span class="parents">
+  $forall (route, title) <- bcs
+    <a href=@{route}>#{title}
+    :: #
+<span class="title">
+  #{current}

templates/default-layout.hamlet

@@ -13,14 +13,17 @@ $# with this software. If not, see
 $# <http://creativecommons.org/publicdomain/zero/1.0/>.
 
 $maybe Entity _pid person <- mperson
-  <p>
+  <div>
     You are logged in as #{personLogin person}.
     <a href=@{AuthR LogoutR}>Log out.
 $nothing
-  <p>
+  <div>
     You are not logged in.
     <a href=@{AuthR LoginR}>Log in.
 
+^{breadcrumbBar}
+
 $maybe msg <- mmsg
   <div #message>#{msg}
+
 ^{widget}

vervis.cabal

@@ -75,6 +75,7 @@ library
                        Vervis.Path
                        Vervis.Ssh
                        Vervis.Style
+                       Vervis.Widget
   -- other-modules:       
   default-extensions:  TemplateHaskell
                        QuasiQuotes