BackNavigation class

Sentinel exception used by every wizard prompt to signal that the user asked to step backward to the previous question. Wizards catch it and re-run the previous step instead of advancing.

Recognized triggers (work in both interact and simple-prompt fallback modes):

• Typing back, b, <, :back (case-insensitive) into a text prompt
• Selecting the appended ← Back option from any menu/yes-no/theme prompt

True ESC / Backspace key support is added on top via WizardNav.askKey for confirm-only navigation hints. The interact package gobbles ESC inside its own Select/Confirm/Input widgets and does not expose a hook for handling them, so the keyword/menu fallback is what actually makes "go back" work end-to-end.

Implemented types

• Exception

Constructors

BackNavigation({String? fromStep})

const

Properties

fromStep → String?

Optional human-readable name of the step the user chose to leave; used only for log messages so the wizard can print "↩ Going back to ..."

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited