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@edvin edvin/LoginApp.kt
Created Jun 25, 2017

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package loginapp.app
import loginapp.views.LoginScreen
import tornadofx.App
class LoginApp : App(LoginScreen::class)
package loginapp.controllers
import javafx.beans.property.SimpleStringProperty
import loginapp.models.UserModel
import loginapp.views.LoginScreen
import loginapp.views.WelcomeScreen
import tornadofx.*
class LoginController : Controller() {
val statusProperty = SimpleStringProperty("")
var status by statusProperty
val api: Rest by inject()
val user: UserModel by inject()
init {
api.baseURI = "https://api.github.com/"
}
fun login(username: String, password: String) {
runLater { status = "" }
api.setBasicAuth(username, password)
val response = api.get("user")
val json = response.one()
runLater {
if (response.ok()) {
user.item = json.toModel()
find(LoginScreen::class).replaceWith(WelcomeScreen::class, sizeToScene = true, centerOnScreen = true)
} else {
status = json.string("message") ?: "Login failed"
}
}
}
fun logout() {
user.item = null
primaryStage.uiComponent<UIComponent>()?.replaceWith(LoginScreen::class, sizeToScene = true, centerOnScreen = true)
}
}
package loginapp.views
import javafx.beans.property.SimpleStringProperty
import javafx.geometry.Orientation
import javafx.scene.paint.Color
import javafx.scene.text.FontWeight
import loginapp.controllers.LoginController
import tornadofx.*
class LoginScreen : View("Login") {
val model = ViewModel()
val username = model.bind { SimpleStringProperty() }
val password = model.bind { SimpleStringProperty() }
val loginController: LoginController by inject()
override val root = form {
fieldset(labelPosition = Orientation.VERTICAL) {
field("Username") {
textfield(username).required()
}
field("Password") {
passwordfield(password).required()
}
button("Log in") {
enableWhen(model.valid)
isDefaultButton = true
useMaxWidth = true
action {
runAsyncWithProgress {
loginController.login(username.value, password.value)
}
}
}
}
label(loginController.statusProperty) {
style {
paddingTop = 10
textFill = Color.RED
fontWeight = FontWeight.BOLD
}
}
}
override fun onDock() {
username.value = ""
password.value = ""
model.clearDecorators()
}
}
package loginapp.models
import javafx.beans.property.SimpleStringProperty
import tornadofx.*
import javax.json.JsonObject
class User : JsonModel {
val nameProperty = SimpleStringProperty()
var name by nameProperty
override fun updateModel(json: JsonObject) {
with (json) {
name = string("name")
}
}
}
class UserModel : ItemViewModel<User>() {
val name = bind(User::nameProperty)
}
package loginapp.views
import javafx.geometry.Pos
import javafx.scene.text.FontWeight
import loginapp.controllers.LoginController
import loginapp.models.UserModel
import tornadofx.*
class WelcomeScreen : View("Welcome") {
val user: UserModel by inject()
val loginController: LoginController by inject()
override val root = vbox(10) {
setPrefSize(800.0, 600.0)
alignment = Pos.CENTER
label(user.name) {
style {
fontWeight = FontWeight.BOLD
fontSize = 24.px
}
}
button("Logout").action(loginController::logout)
}
}
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