begin work on nested layouts

example/src/Generated/Pages.elm

@@ -1,6 +1,7 @@
 module Generated.Pages exposing (Model, Msg, bundle, init, update)
 
 import Application
+import Generated.Pages.Settings as Settings
 import Generated.Route as Route exposing (Route)
 import Html exposing (Html)
 import Pages.Counter as Counter
@@ -16,6 +17,7 @@ type Model
     | CounterModel Counter.Model
     | RandomModel Random.Model
     | NotFoundModel NotFound.Model
+    | SettingsModel Settings.Model
     | Users_SlugModel Users_Slug.Model
     | Users_Slug_Posts_SlugModel Users_Slug_Posts_Slug.Model
 
@@ -24,6 +26,7 @@ type Msg
     = HomepageMsg Homepage.Msg
     | CounterMsg Counter.Msg
     | RandomMsg Random.Msg
+    | SettingsMsg Settings.Msg
     | NotFoundMsg NotFound.Msg
     | Users_SlugMsg Users_Slug.Msg
     | Users_Slug_Posts_SlugMsg Users_Slug_Posts_Slug.Msg
@@ -53,6 +56,14 @@ random =
         }
 
 
+settings : Application.Recipe Settings.Params Settings.Model Settings.Msg Model Msg
+settings =
+    Settings.page
+        { toModel = SettingsModel
+        , toMsg = SettingsMsg
+        }
+
+
 notFound : Application.Recipe NotFound.Params NotFound.Model NotFound.Msg Model Msg
 notFound =
     NotFound.page
@@ -89,6 +100,9 @@ init route =
         Route.Random params ->
             random.init params
 
+        Route.Settings params ->
+            settings.init params
+
         Route.NotFound params ->
             notFound.init params
 
@@ -120,6 +134,12 @@ update appMsg appModel =
         ( RandomMsg _, _ ) ->
             Application.keep appModel
 
+        ( SettingsMsg msg, SettingsModel model ) ->
+            settings.update msg model
+
+        ( SettingsMsg _, _ ) ->
+            Application.keep appModel
+
         ( NotFoundMsg msg, NotFoundModel model ) ->
             notFound.update msg model
 
@@ -151,6 +171,9 @@ bundle appModel =
         RandomModel model ->
             random.bundle model
 
+        SettingsModel model ->
+            settings.bundle model
+
         NotFoundModel model ->
             notFound.bundle model
 

example/src/Generated/Pages/Settings.elm

@@ -0,0 +1,121 @@
+module Generated.Pages.Settings exposing (Model, Msg, Params, page)
+
+import Application
+import Generated.Route.Settings as Route exposing (Route)
+import Html exposing (..)
+import Layouts.Settings
+import Pages.Settings.Account as Account
+import Pages.Settings.Notifications as Notifications
+import Pages.Settings.User as User
+
+
+
+-- TODO : Export Application.layout or something for scaling this trash
+
+
+type Model
+    = AccountModel Account.Model
+    | NotificationsModel Notifications.Model
+    | UserModel User.Model
+
+
+type Msg
+    = AccountMsg Account.Msg
+    | NotificationsMsg Notifications.Msg
+    | UserMsg User.Msg
+
+
+type alias Params =
+    Route
+
+
+page : Application.Page Params Model Msg model msg
+page =
+    Application.glue glue
+
+
+glue : Application.Glue Route Model Msg
+glue =
+    { layout = Layouts.Settings.layout
+    , pages = pages
+    }
+
+
+pages : Application.Pages Route Model Msg
+pages =
+    { init = init
+    , update = update
+    , bundle = bundle
+    }
+
+
+account : Application.Recipe Account.Params Account.Model Account.Msg Model Msg
+account =
+    Account.page
+        { toModel = AccountModel
+        , toMsg = AccountMsg
+        }
+
+
+notifications : Application.Recipe Notifications.Params Notifications.Model Notifications.Msg Model Msg
+notifications =
+    Notifications.page
+        { toModel = NotificationsModel
+        , toMsg = NotificationsMsg
+        }
+
+
+user : Application.Recipe User.Params User.Model User.Msg Model Msg
+user =
+    User.page
+        { toModel = UserModel
+        , toMsg = UserMsg
+        }
+
+
+init : Route -> ( Model, Cmd Msg )
+init route =
+    case route of
+        Route.Account params ->
+            account.init params
+
+        Route.Notifications params ->
+            notifications.init params
+
+        Route.User params ->
+            user.init params
+
+
+update : Msg -> Model -> ( Model, Cmd Msg )
+update appMsg appModel =
+    case ( appMsg, appModel ) of
+        ( AccountMsg msg, AccountModel model ) ->
+            account.update msg model
+
+        ( AccountMsg _, _ ) ->
+            Application.keep appModel
+
+        ( NotificationsMsg msg, NotificationsModel model ) ->
+            notifications.update msg model
+
+        ( NotificationsMsg _, _ ) ->
+            Application.keep appModel
+
+        ( UserMsg msg, UserModel model ) ->
+            user.update msg model
+
+        ( UserMsg _, _ ) ->
+            Application.keep appModel
+
+
+bundle : Model -> { view : Html Msg, subscriptions : Sub Msg }
+bundle appModel =
+    case appModel of
+        AccountModel model ->
+            account.bundle model
+
+        NotificationsModel model ->
+            notifications.bundle model
+
+        UserModel model ->
+            user.bundle model

example/src/Generated/Route.elm

@@ -1,5 +1,6 @@
 module Generated.Route exposing (Route(..), fromUrl, toPath)
 
+import Generated.Route.Settings as Settings
 import Url exposing (Url)
 import Url.Parser as Parser exposing ((</>), Parser)
 
@@ -8,6 +9,7 @@ type Route
     = Homepage ()
     | Counter ()
     | Random ()
+    | Settings Settings.Route
     | Users_Slug String
     | Users_Slug_Posts_Slug UserPostInfo
     | NotFound ()
@@ -21,25 +23,26 @@ type alias UserPostInfo =
 
 fromUrl : Url -> Route
 fromUrl =
-    Parser.parse
-        (Parser.oneOf routes)
-        >> Maybe.withDefault (NotFound ())
+    Parser.parse parser >> Maybe.withDefault (NotFound ())
 
 
-routes : List (Parser (Route -> Route) Route)
-routes =
-    [ Parser.top
-        |> Parser.map (Homepage ())
-    , Parser.s "counter"
-        |> Parser.map (Counter ())
-    , Parser.s "random"
-        |> Parser.map (Random ())
-    , (Parser.s "users" </> Parser.string)
-        |> Parser.map Users_Slug
-    , (Parser.s "users" </> Parser.string </> Parser.s "posts" </> Parser.int)
-        |> Parser.map UserPostInfo
-        |> Parser.map Users_Slug_Posts_Slug
-    ]
+parser : Parser (Route -> a) a
+parser =
+    Parser.oneOf
+        [ Parser.top
+            |> Parser.map (Homepage ())
+        , Parser.s "counter"
+            |> Parser.map (Counter ())
+        , Parser.s "random"
+            |> Parser.map (Random ())
+        , Parser.s "settings"
+            |> (</>) (Parser.map Settings Settings.parser)
+        , (Parser.s "users" </> Parser.string)
+            |> Parser.map Users_Slug
+        , (Parser.s "users" </> Parser.string </> Parser.s "posts" </> Parser.int)
+            |> Parser.map UserPostInfo
+            |> Parser.map Users_Slug_Posts_Slug
+        ]
 
 
 toPath : Route -> String
@@ -54,6 +57,9 @@ toPath route =
         Random _ ->
             "/random"
 
+        Settings r ->
+            "/settings" ++ Settings.toPath r
+
         NotFound _ ->
             "/not-found"
 

example/src/Generated/Route/Settings.elm

@@ -0,0 +1,38 @@
+module Generated.Route.Settings exposing
+    ( Route(..)
+    , parser
+    , toPath
+    )
+
+import Url.Parser as Parser exposing ((</>), Parser)
+
+
+type Route
+    = Account ()
+    | Notifications ()
+    | User ()
+
+
+toPath : Route -> String
+toPath route =
+    case route of
+        Account _ ->
+            "/account"
+
+        Notifications _ ->
+            "/notifications"
+
+        User _ ->
+            "/user"
+
+
+parser : Parser (Route -> a) a
+parser =
+    Parser.oneOf
+        [ Parser.s "account"
+            |> Parser.map (Account ())
+        , Parser.s "notifications"
+            |> Parser.map (Notifications ())
+        , Parser.s "user"
+            |> Parser.map (User ())
+        ]

example/src/Layouts/Main.elm

@@ -1,10 +1,17 @@
-module Layout exposing (view)
+module Layouts.Main exposing (layout)
 
+import Application
 import Components.Navbar
 import Html exposing (..)
 import Html.Attributes as Attr
 
 
+layout : Application.Layout msg
+layout =
+    { view = view
+    }
+
+
 view : { page : Html msg } -> Html msg
 view { page } =
     div

example/src/Layouts/Settings.elm

@@ -0,0 +1,18 @@
+module Layouts.Settings exposing (layout)
+
+import Application
+import Html exposing (..)
+
+
+layout : Application.Layout msg
+layout =
+    { view = view
+    }
+
+
+view : { page : Html msg } -> Html msg
+view { page } =
+    div []
+        [ h1 [] [ text "Settings" ]
+        , page
+        ]

example/src/Main.elm

@@ -3,7 +3,7 @@ module Main exposing (main)
 import Application exposing (Application)
 import Generated.Pages as Pages
 import Generated.Route as Route
-import Layout as Layout
+import Layouts.Main
 
 
 main : Application () Pages.Model Pages.Msg
@@ -14,9 +14,7 @@ main =
             , toPath = Route.toPath
             , transition = Application.fade 200
             }
-        , layout =
-            { view = Layout.view
-            }
+        , layout = Layouts.Main.layout
         , pages =
             { init = Pages.init
             , update = Pages.update

example/src/Pages/Settings.elm

@@ -1,27 +0,0 @@
-module Pages.Settings exposing (Model, Msg)
-
-import Pages.Settings.Account as Account
-import Pages.Settings.Notifications as Notifications
-import Pages.Settings.User as User
-
-
-
--- TODO : Export Application.layout or something for scaling this trash
-
-
-type Route
-    = Account
-    | Notifications
-    | User
-
-
-type Model
-    = AccountModel Account.Model
-    | NotificationsModel Notifications.Model
-    | UserModel User.Model
-
-
-type Msg
-    = AccountMsg Account.Msg
-    | NotificationsMsg Notifications.Msg
-    | UserMsg User.Msg

example/src/Pages/Settings/Account.elm

@@ -1,9 +1,33 @@
-module Pages.Settings.Account exposing (Model, Msg)
+module Pages.Settings.Account exposing
+    ( Model
+    , Msg
+    , Params
+    , page
+    )
+
+import Application
+import Html exposing (..)
 
 
-type Model
-    = Model
+type alias Model =
+    ()
 
 
-type Msg
-    = Msg
+type alias Msg =
+    Never
+
+
+type alias Params =
+    ()
+
+
+page : Application.Page Params Model Msg model msg
+page =
+    Application.static
+        { view = view
+        }
+
+
+view : Html Msg
+view =
+    h3 [] [ text "Account" ]

example/src/Pages/Settings/Notifications.elm

@@ -1,9 +1,33 @@
-module Pages.Settings.Notifications exposing (Model, Msg)
+module Pages.Settings.Notifications exposing
+    ( Model
+    , Msg
+    , Params
+    , page
+    )
+
+import Application
+import Html exposing (..)
 
 
-type Model
-    = Model
+type alias Model =
+    ()
 
 
-type Msg
-    = Msg
+type alias Msg =
+    Never
+
+
+type alias Params =
+    ()
+
+
+page : Application.Page Params Model Msg model msg
+page =
+    Application.static
+        { view = view
+        }
+
+
+view : Html Msg
+view =
+    h3 [] [ text "Notifications" ]

example/src/Pages/Settings/User.elm

@@ -1,9 +1,33 @@
-module Pages.Settings.User exposing (Model, Msg)
+module Pages.Settings.User exposing
+    ( Model
+    , Msg
+    , Params
+    , page
+    )
+
+import Application
+import Html exposing (..)
 
 
-type Model
-    = Model
+type alias Model =
+    ()
 
 
-type Msg
-    = Msg
+type alias Msg =
+    Never
+
+
+type alias Params =
+    ()
+
+
+page : Application.Page Params Model Msg model msg
+page =
+    Application.static
+        { view = view
+        }
+
+
+view : Html Msg
+view =
+    h3 [] [ text "User" ]

example/src/Pages/Users/Slug/Posts/Slug.elm

@@ -49,4 +49,6 @@ subscriptions model =
 
 view : Model -> Html Msg
 view model =
-    h1 [] [ text ("Post " ++ String.fromInt model.post ++ " for user: " ++ model.user) ]
+    h1 []
+        [ text ("Post " ++ String.fromInt model.post ++ " for user: " ++ model.user)
+        ]

src/Application.elm

@@ -1,18 +1,30 @@
 module Application exposing
     ( Application, create
+    , Layout
     , Page, Recipe
     , Bundle, keep
     , Static, static
     , Sandbox, sandbox
     , Element, element
-    , Transition, fade
-    , none
+    , Glue, Pages, glue
+    , Transition, fade, none
     )
 
 {-|
 
+
+## Applications
+
 @docs Application, create
 
+
+## Layouts
+
+@docs Layout
+
+
+## Pages
+
 @docs Page, Recipe
 
 @docs Bundle, keep
@@ -23,11 +35,12 @@ module Application exposing
 
 @docs Element, element
 
-@docs PageWithParams, RecipeWithParams
+@docs Glue, Pages, glue
 
-@docs ElementWithParams, elementWithParams
 
-@docs Transition, fade
+## Transitions
+
+@docs Transition, fade, none
 
 -}
 
@@ -35,6 +48,7 @@ import Browser
 import Browser.Dom as Dom
 import Browser.Navigation as Nav
 import Html exposing (Html)
+import Internals.Layout as Layout
 import Internals.Page as Page
 import Internals.Transition as Transition
 import Internals.Transitionable as Transitionable exposing (Transitionable)
@@ -93,7 +107,7 @@ create config =
         , view =
             view
                 { view = config.pages.bundle >> .view
-                , layout = config.layout.view
+                , layout = config.layout
                 , transition = transition.strategy
                 }
         , onUrlChange = Url
@@ -252,7 +266,7 @@ subscriptions config model =
 view :
     { view : model -> Html msg
     , transition : Transition.Strategy (Html msg)
-    , layout : { page : Html msg } -> Html msg
+    , layout : Layout msg
     }
     -> Model flags model
     -> Browser.Document (Msg msg)
@@ -263,19 +277,19 @@ view config model =
             case model.page of
                 Transitionable.Ready page ->
                     config.transition.beforeLoad
-                        { layout = config.layout
+                        { layout = config.layout.view
                         , page = config.view page
                         }
 
                 Transitionable.Transitioning page ->
                     config.transition.leavingPage
-                        { layout = config.layout
+                        { layout = config.layout.view
                         , page = config.view page
                         }
 
                 Transitionable.Complete page ->
                     config.transition.enteringPage
-                        { layout = config.layout
+                        { layout = config.layout.view
                         , page = config.view page
                         }
         ]
@@ -286,6 +300,10 @@ view config model =
 -- PAGE API
 
 
+type alias Layout msg =
+    Layout.Layout msg
+
+
 type alias Page params pageModel pageMsg model msg =
     Page.Page params pageModel pageMsg model msg
 
@@ -314,28 +332,43 @@ static =
     Page.static
 
 
-type alias Sandbox pageModel pageMsg params =
-    Page.Sandbox pageModel pageMsg params
+type alias Sandbox params pageModel pageMsg =
+    Page.Sandbox params pageModel pageMsg
 
 
 sandbox :
-    Sandbox pageModel pageMsg params
+    Sandbox params pageModel pageMsg
     -> Page params pageModel pageMsg model msg
 sandbox =
     Page.sandbox
 
 
-type alias Element pageModel pageMsg params =
-    Page.Element pageModel pageMsg params
+type alias Element params pageModel pageMsg =
+    Page.Element params pageModel pageMsg
 
 
 element :
-    Element pageModel pageMsg params
+    Element params pageModel pageMsg
     -> Page params pageModel pageMsg model msg
 element =
     Page.element
 
 
+type alias Glue route layoutModel layoutMsg =
+    Page.Glue route layoutModel layoutMsg
+
+
+type alias Pages route layoutModel layoutMsg =
+    Page.Pages route layoutModel layoutMsg
+
+
+glue :
+    Glue route layoutModel layoutMsg
+    -> Page params layoutModel layoutMsg model msg
+glue =
+    Page.glue
+
+
 
 -- TRANSITIONS
 

src/Internals/Layout.elm

@@ -0,0 +1,8 @@
+module Internals.Layout exposing (Layout)
+
+import Html exposing (Html)
+
+
+type alias Layout msg =
+    { view : { page : Html msg } -> Html msg
+    }

src/Internals/Page.elm

@@ -4,6 +4,7 @@ module Internals.Page exposing
     , Static, static
     , Sandbox, sandbox
     , Element, element
+    , Glue, Pages, glue
     )
 
 {-|
@@ -18,9 +19,12 @@ module Internals.Page exposing
 
 @docs Element, element
 
+@docs Glue, Pages, glue
+
 -}
 
 import Html exposing (Html)
+import Internals.Layout exposing (Layout)
 
 
 type alias Page params pageModel pageMsg model msg =
@@ -70,7 +74,7 @@ static page { toModel, toMsg } =
 -- SANDBOX
 
 
-type alias Sandbox pageModel pageMsg params =
+type alias Sandbox params pageModel pageMsg =
     { init : params -> pageModel
     , update : pageMsg -> pageModel -> pageModel
     , view : pageModel -> Html pageMsg
@@ -78,7 +82,7 @@ type alias Sandbox pageModel pageMsg params =
 
 
 sandbox :
-    Sandbox pageModel pageMsg params
+    Sandbox params pageModel pageMsg
     -> Page params pageModel pageMsg model msg
 sandbox page { toModel, toMsg } =
     { init = \params -> ( toModel (page.init params), Cmd.none )
@@ -99,7 +103,7 @@ sandbox page { toModel, toMsg } =
 -- ELEMENT
 
 
-type alias Element pageModel pageMsg params =
+type alias Element params pageModel pageMsg =
     { init : params -> ( pageModel, Cmd pageMsg )
     , update : pageMsg -> pageModel -> ( pageModel, Cmd pageMsg )
     , view : pageModel -> Html pageMsg
@@ -108,7 +112,7 @@ type alias Element pageModel pageMsg params =
 
 
 element :
-    Element pageModel pageMsg params
+    Element params pageModel pageMsg
     -> Page params pageModel pageMsg model msg
 element page { toModel, toMsg } =
     { init =
@@ -123,3 +127,30 @@ element page { toModel, toMsg } =
             , subscriptions = Sub.none
             }
     }
+
+
+
+-- LAYOUT
+
+
+type alias Glue route model msg =
+    { layout : Layout msg
+    , pages : Pages route model msg
+    }
+
+
+type alias Pages route model msg =
+    { init : route -> ( model, Cmd msg )
+    , update : msg -> model -> ( model, Cmd msg )
+    , bundle : model -> Bundle msg
+    }
+
+
+glue :
+    Glue route layoutModel layoutMsg
+    -> Page params layoutModel layoutMsg model msg
+glue options { toModel, toMsg } =
+    { init = Debug.todo "glue.init"
+    , update = Debug.todo "glue.update"
+    , bundle = Debug.todo "glue.bundle"
+    }