WPF implementation

[maraf]

The goal for WPF is to completely manage windows in navigation framework. It is responsible for window modality, resolving continuation tasks, reactivating current window if this is registered as singleton, closing other windows not compatible/excluding with the one to open.

All these rules seems quite hard to declaratively define.

• Associating navigation rule with view by registering a IFactory.
• Use RuleAttribute to make discover rules (use Neptuo.Reflection.ReflectionService?).
• NavigateCommand (WPF impl. or Observables.Something assembly?).
• Pass in a view manager to support some master-detail scenarios inside a single window.

[maraf]

An AsyncNavigator should take an instance of current view to support disabling it for modal views.