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Remove the need to wrap every model in ZIO

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This commit is contained in:
Paul-Henri Froidmont 2025-11-07 01:34:59 +01:00
parent 1da129f855
commit c19086ef32
Signed by: phfroidmont
GPG key ID: BE948AFD7E7873BE
6 changed files with 24 additions and 30 deletions
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4
core/src/TestLiveView.scala
View file

@ -8,10 +8,10 @@ import zio.stream.ZStream
import TestView.* import TestView.*
class TestView extends LiveView[Msg, Model]: class TestView extends LiveView[Msg, Model]:
def init = ZIO.succeed(Model()) def init = Model()
def update(model: Model) = def update(model: Model) =
case Msg.UpdateModel(f) => ZIO.succeed(f(model)) case Msg.UpdateModel(f) => f(model)
def view(model: Dyn[Model]) = def view(model: Dyn[Model]) =
div( div(

2
core/src/scalive/LiveView.scala
View file

@ -8,3 +8,5 @@ trait LiveView[Msg, Model]:
def update(model: Model): Msg => Task[Model] def update(model: Model): Msg => Task[Model]
def view(model: Dyn[Model]): HtmlElement def view(model: Dyn[Model]): HtmlElement
def subscriptions(model: Model): ZStream[Any, Nothing, Msg] def subscriptions(model: Model): ZStream[Any, Nothing, Msg]
given [T]: Conversion[T, Task[T]] = ZIO.succeed(_)

9
example/src/CounterLiveView.scala
View file

@ -6,20 +6,19 @@ import zio.stream.ZStream
class CounterLiveView() extends LiveView[Msg, Model]: class CounterLiveView() extends LiveView[Msg, Model]:
def init = ZIO.succeed( def init =
Model( Model(
isVisible = true, isVisible = true,
counter = 0 counter = 0
) )
)
def update(model: Model) = def update(model: Model) =
case Msg.ToggleCounter => case Msg.ToggleCounter =>
ZIO.succeed(model.focus(_.isVisible).modify(!_)) model.focus(_.isVisible).modify(!_)
case Msg.IncCounter => case Msg.IncCounter =>
ZIO.succeed(model.focus(_.counter).modify(_ + 1)) model.focus(_.counter).modify(_ + 1)
case Msg.DecCounter => case Msg.DecCounter =>
ZIO.succeed(model.focus(_.counter).modify(_ - 1)) model.focus(_.counter).modify(_ - 1)
def view(model: Dyn[Model]) = def view(model: Dyn[Model]) =
div( div(

4
example/src/HomeLiveView.scala
View file

@ -9,9 +9,9 @@ class HomeLiveView() extends LiveView[String, Unit]:
"/todo" -> "Todo" "/todo" -> "Todo"
) )
def init = ZIO.succeed(()) def init = ()
def update(model: Unit) = _ => ZIO.succeed(model) def update(model: Unit) = _ => model
def view(model: Dyn[Unit]) = def view(model: Dyn[Unit]) =
ul( ul(

5
example/src/ListLiveView.scala
View file

@ -6,7 +6,7 @@ import zio.stream.ZStream
class ListLiveView(someParam: String) extends LiveView[Msg, Model]: class ListLiveView(someParam: String) extends LiveView[Msg, Model]:
def init = ZIO.succeed( def init =
Model( Model(
elems = List( elems = List(
NestedModel("a", 10), NestedModel("a", 10),
@ -14,11 +14,10 @@ class ListLiveView(someParam: String) extends LiveView[Msg, Model]:
NestedModel("c", 20) NestedModel("c", 20)
) )
) )
)
def update(model: Model) = def update(model: Model) =
case Msg.IncAge(value) => case Msg.IncAge(value) =>
ZIO.succeed(model.focus(_.elems.index(2).age).modify(_ + value)) model.focus(_.elems.index(2).age).modify(_ + value)
def view(model: Dyn[Model]) = def view(model: Dyn[Model]) =
div( div(

8
example/src/TodoLiveView.scala
View file

@ -6,30 +6,24 @@ import zio.stream.ZStream
class TodoLiveView() extends LiveView[Msg, Model]: class TodoLiveView() extends LiveView[Msg, Model]:
def init = ZIO.succeed(Model(List(Todo(99, "some task")))) def init = Model(List(Todo(99, "Buy eggs")))
def update(model: Model) = def update(model: Model) =
case Msg.Add(text) => case Msg.Add(text) =>
val nextId = model.todos.maxByOption(_.id).map(_.id).getOrElse(1) + 1 val nextId = model.todos.maxByOption(_.id).map(_.id).getOrElse(1) + 1
ZIO.succeed(
model model
.focus(_.todos) .focus(_.todos)
.modify(_.appended(Todo(nextId, text))) .modify(_.appended(Todo(nextId, text)))
)
case Msg.Remove(id) => case Msg.Remove(id) =>
ZIO.succeed(
model model
.focus(_.todos) .focus(_.todos)
.modify(_.filterNot(_.id == id)) .modify(_.filterNot(_.id == id))
)
case Msg.ToggleCompletion(id) => case Msg.ToggleCompletion(id) =>
ZIO.succeed(
model model
.focus(_.todos) .focus(_.todos)
.modify( .modify(
_.map(todo => if todo.id == id then todo.copy(completed = todo.completed) else todo) _.map(todo => if todo.id == id then todo.copy(completed = todo.completed) else todo)
) )
)
def view(model: Dyn[Model]) = def view(model: Dyn[Model]) =
div( div(