1 files changed, 62 insertions, 0 deletions
diff --git a/app/Foobar/Application.hs b/app/Foobar/Application.hs
new file mode 100644
index 0000000..5713cc3
--- /dev/null
+++ b/app/Foobar/Application.hs
@@ -0,0 +1,62 @@
+{-# LANGUAGE GHC2021 #-}
+{-# LANGUAGE OverloadedStrings, OverloadedLabels, OverloadedRecordDot, ImplicitParams #-}
+
+module Foobar.Application
+  ( mkApplication
+  ) where
+
+import Data.Maybe (fromJust)
+import Data.GI.Base
+import Data.Text
+import GHC.Generics (Generic)
+import Declarative.Gtk
+
+import qualified GI.Gtk as Gtk
+import qualified GI.Gdk as Gdk
+import qualified GI.Gio as Gio
+import qualified GI.Foobar as FB
+
+mkApplication :: IO Gtk.Application
+mkApplication = new Gtk.Application [ #applicationId := "com.github.hannesschulze.foobar-hs"
+                                    , On #activate (onActivate ?self) ]
+
+newtype AppState
+  = AppState { stateText :: Text }
+  deriving (Generic)
+
+data Message = MsgQuit | MsgDoSomething
+
+initialState :: AppState
+initialState = AppState { stateText = "Do something" }
+
+appView :: View AppState Message Gtk.Widget
+appView state emit = widget DeclarativeBox [ #children := children
+                                           , #orientation := Gtk.OrientationVertical
+                                           , #spacing := 12]
+  where children = [ widget Gtk.Button [ #label :<~ state.stateText
+                                       , On #clicked (emit MsgDoSomething) ]
+                   , widget Gtk.Button [ #label := "Quit"
+                                       , On #clicked (emit MsgQuit) ] ]
+
+appHandler :: Handler Message AppState
+appHandler MsgQuit _ = pure ()
+appHandler MsgDoSomething s = s.stateText <~ "Did something!"
+
+onActivate :: Gtk.Application -> IO ()
+onActivate app = do
+  provider <- new Gtk.CssProvider []
+  provider.loadFromResource "/foobar/styles/default.css"
+  disp <- Gdk.displayGetDefault
+  Gtk.styleContextAddProviderForDisplay (fromJust disp)
+                                        provider
+                                        (fromIntegral Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
+  view <- mvh initialState appView appHandler
+  window <- new Gtk.ApplicationWindow [ #application := app
+                                      , #title := "Test"
+                                      , #child := view ]
+  _ <- FB.serverProxyNewForBusSync Gio.BusTypeSession
+                                   []
+                                   "com.github.hannesschulze.foobar"
+                                   "/com/github/hannesschulze/foobar/server"
+                                   (Nothing :: Maybe Gio.Cancellable)
+  window.show