Wizard component

[edvin]

Now that we have the Slideshow and InternalWindow components we have all the building blocks for a Wizard component as well. The API needs to be thought out though. What features should we include?

The basic API would probably be something like:

wizard {
    step(Step1::class)
    step(Step2::class)
}

We must figure out:

• Inter step communication and access to the Wizard
  • Maybe each Step/UIComponent could implement a WizardStep interface?
• Each step should be able to block Next/Previous buttons
• Button configuration?
• Show progress, possibly in a sidebar?

[edvin]

Since nobody has asked for this feature and I don't have sufficient use cases at the moment I think we should not implement this until we do. Real world use cases are important to make sure we don't create a too restrictive API that's hard to evolve later.

[Awais16]

Hi, how can i disable backbutton ?
i tired overriding with canGoBack= SimpleBooleanProperty
but it leaves me with error

Parameter specified as non-null is null: method tornadofx.NodesKt.enableWhen, parameter predicate

pardon my newbieness 😅

[edvin]

override val canGoBack = SimpleBooleanProperty(false) should do it. If this doesn't work, post your exact code and the complete stack trace.

[Awais16]

Class ImportWizard: Wizard("Import Wizard","Connect your device with usb and follow the instructions") {

  override val canGoNext = currentPageComplete
    override val canFinish = allPagesComplete
    val backEnable=SimpleBooleanProperty(false)
    override val canGoBack=backEnable
init {
        add(DeviceList::class)
    }

}

and stacktrace:

SEVERE: Uncaught error
java.lang.IllegalArgumentException: Parameter specified as non-null is null: method tornadofx.NodesKt.enableWhen, parameter predicate
	at tornadofx.NodesKt.enableWhen(Nodes.kt)
	at tornadofx.NodesKt.enableWhen(Nodes.kt:1131)
	at tornadofx.Wizard$root$1$4$1$1.invoke(Wizard.kt:152)
	at tornadofx.Wizard$root$1$4$1$1.invoke(Wizard.kt:23)
	at tornadofx.ControlsKt.button(Controls.kt:358)
	at tornadofx.ControlsKt.button$default(Controls.kt:351)
	at tornadofx.Wizard$root$1$4$1.invoke(Wizard.kt:150)
	at tornadofx.Wizard$root$1$4$1.invoke(Wizard.kt:23)
	at tornadofx.FXKt.opcr(FX.kt:454)
	at tornadofx.ControlsKt.buttonbar(Controls.kt:284)
	at tornadofx.ControlsKt.buttonbar$default(Controls.kt:281)
	at tornadofx.Wizard$root$1$4.invoke(Wizard.kt:148)
	at tornadofx.Wizard$root$1$4.invoke(Wizard.kt:23)
	at tornadofx.LayoutsKt.region(Layouts.kt:142)
	at tornadofx.LayoutsKt.bottom(Layouts.kt:136)
	at tornadofx.Wizard$root$1.invoke(Wizard.kt:147)
	at tornadofx.Wizard$root$1.invoke(Wizard.kt:23)
	at tornadofx.FXKt.opcr(FX.kt:454)
	at tornadofx.LayoutsKt.borderpane(Layouts.kt:128)
	at tornadofx.Wizard.<init>(Wizard.kt:87)
	at com.ikmb.questy.view.ImportWizardViews.ImportWizard.<init>(ImportWizard.kt:9)
	at com.ikmb.questy.view.TopView.startImportWizard(TopView.kt:47)

[edvin]

Thanks for reporting :) I've committed a fix for this now.

[Awais16]

Thanks 😄