diff options
Diffstat (limited to 'examples/input/src/input.gleam')
-rw-r--r-- | examples/input/src/input.gleam | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/examples/input/src/input.gleam b/examples/input/src/input.gleam new file mode 100644 index 0000000..6425b0c --- /dev/null +++ b/examples/input/src/input.gleam @@ -0,0 +1,120 @@ +// IMPORTS --------------------------------------------------------------------- + +import gleam/dynamic +import gleam/string +import lustre +import lustre/attribute.{attribute} +import lustre/element.{type Element, text} +import lustre/element/html.{div, input, label, pre} +import lustre/event + +// MAIN ------------------------------------------------------------------------ + +pub fn main() { + // A `simple` lustre application doesn't produce `Effect`s. These are best to + // start with if you're just getting started with lustre or you know you don't + // need the runtime to manage any side effects. + let app = lustre.simple(init, update, view) + let assert Ok(_) = lustre.start(app, "[data-lustre-app]", Nil) + + Nil +} + +// MODEL ----------------------------------------------------------------------- + +type Model { + Model(email: String, password: String, remember_me: Bool) +} + +fn init(_) -> Model { + Model(email: "", password: "", remember_me: False) +} + +// UPDATE ---------------------------------------------------------------------- + +type Msg { + Typed(Input, String) + Toggled(Control, Bool) +} + +type Input { + Email + Password +} + +type Control { + RememberMe +} + +fn update(model: Model, msg: Msg) -> Model { + case msg { + Typed(Email, email) -> Model(..model, email: email) + Typed(Password, password) -> Model(..model, password: password) + Toggled(RememberMe, remember_me) -> Model(..model, remember_me: remember_me) + } +} + +// RENDER ---------------------------------------------------------------------- + +fn view(model: Model) -> Element(Msg) { + div([attribute.class("container")], [ + card([ + email_input(model.email), + password_input(model.password), + remember_checkbox(model.remember_me), + pre([attribute.class("debug")], [ + string.inspect(model) + |> string.replace("(", "(\n ") + |> string.replace(", ", ",\n ") + |> string.replace(")", "\n)") + |> text, + ]), + ]), + ]) +} + +fn card(content: List(Element(a))) -> Element(a) { + div([attribute.class("card")], [div([], content)]) +} + +fn email_input(value: String) -> Element(Msg) { + render_input(Email, "email", "email-input", value, "Email address") +} + +fn password_input(value: String) -> Element(Msg) { + render_input(Password, "password", "password-input", value, "Password") +} + +fn render_input( + field: Input, + type_: String, + id: String, + value: String, + label_: String, +) -> Element(Msg) { + div([attribute.class("input")], [ + label([attribute.for(id)], [text(label_)]), + input([ + attribute.id(id), + attribute.name(id), + attribute.type_(type_), + attribute.required(True), + attribute.value(dynamic.from(value)), + event.on_input(fn(value) { Typed(field, value) }), + ]), + ]) +} + +fn remember_checkbox(checked: Bool) -> Element(Msg) { + div([attribute.class("flex items-center")], [ + input([ + attribute.id("remember-me"), + attribute.name("remember-me"), + attribute.type_("checkbox"), + attribute.checked(checked), + attribute.class("checkbox"), + event.on_click(Toggled(RememberMe, !checked)), + ]), + label([attribute.for("remember-me")], [text("Remember me")]), + ]) +} |