private void RegisterViews(IWizardContext context)
{
ValidateContext(context);
stepViews = new List <object>();
var stepsRegion = GetStepsRegion(wizardRegionManager);
var orderedSteps = context.OrderBy((s) => s.Index).ToList();
foreach (var step in orderedSteps)
{
wizardContainer.RegisterType(step.IViewModel, step.ViewModel);
wizardRegionManager.RegisterViewWithRegion(stepsRegion.Name, () =>
{
var viewType = step.View;
var stepViewInstance = wizardContainer.Resolve(viewType);
stepViews.Add(stepViewInstance);
return(stepViewInstance);
});
}
var firstStep = orderedSteps.FirstOrDefault();
if (firstStep != null)
{
firstStep.IsCurrent = true;
}
}
private void ValidateContext(IWizardContext context)
{
var duplicateSteps = context.Select(ci => ci.Index).GroupBy(i => i).
Where(g => g.Count() > 1).Select(g => g.Key);
if (duplicateSteps.Count() > 0)
{
throw new Exception("Found duplicated step indices. All step indices must be unique");
}
var duplicateViewTypes = context.Select(ci => ci.View).GroupBy(i => i).
Where(g => g.Count() > 1).Select(g => g.Key);
if (duplicateViewTypes.Count() > 0)
{
throw new Exception("Found duplicated view types. Each step should have it's own unique view type");
}
}
private void SwitchStepView(WizardStep currentStep, WizardStep nextStep, IWizardContext context)
{
if (currentStep != null)
{
if (currentStep.Index == nextStep.Index) // don't switch to already active step
{
return;
}
currentStep.IsCurrent = false;
var region = GetStepsRegion(wizardRegionManager);
var viewToActivate = stepViews[nextStep.Index]; //region.Views.Where((v) => v.GetType() == nextStep.View).FirstOrDefault();
if (viewToActivate != null)
{
region.Activate(viewToActivate);
eventAggregator.GetEvent <UpdateNavBarEvent>().Publish(context);
nextStep.IsCurrent = true;
}
}
}
public virtual void OnCancel( IWizardContext context, CancelEventArgs e )
{
}
public abstract WizardPage CreateInitialPage( IWizardContext context );
public virtual void OnPageOpened( IWizardContext context )
{
_context = context;
}
public virtual void OnPageClosed()
{
_context = null;
}
private void OnUpdateNavBarEvent(IWizardContext context)
{
UpdateSteps();
}
