protected virtual void BackExecute(object o)
{
Assert.IsTrue(this.Steps.Count > 0, "Steps stack is corrupted. Can't be less than 1");
var contentVMtoDestroy = this.ContentVM as IDisposable;
if (contentVMtoDestroy != null)
{
contentVMtoDestroy.Dispose();
}
this.Steps.Pop();
this.CanBack = this.Steps.Count > 1;
if (this.CanBack)
{
WindowStepState windowStepState = this.Steps.Where((state, index) => index == 1).FirstOrDefault();
if (windowStepState != null)
{
this.BackToTitle = windowStepState.ShortName;
}
else
{
this.BackToTitle = "hell :)";
}
}
this.NotifyPublicVisibleChanged();
}
public static void GoAheadWithBackIfPossible(WindowStepState newState)
{
if (GoAheadTargets != null)
{
GoAheadTargets(newState);
}
}
public virtual void ReplaceInitialState(WindowStepState newHomeState)
{
this.ClearStepsStackWithDisposing();
this.Steps.Push(newHomeState);
this.CanBack = false;
this.NotifyPublicVisibleChanged();
}
protected virtual void GoAheadWithBack(WindowStepState newState)
{
Assert.IsNotNull(newState, "New state cannot be null");
this.BackToTitleInternal = this.CurrentState.ShortName;
this.Steps.Push(newState);
this.CanBack = true;
this.NotifyPublicVisibleChanged();
}
static WindowStepState()
{
EmptyState = new WindowStepState();
EmptyState.SuperAction =
new ActionCommandVM(
new RelayCommand(delegate { throw new InvalidOperationException("Command can't be executed!"); }, false),
string.Empty);
EmptyState.StateSpecificHelpActions = new List<ActionCommandVM>();
EmptyState.ContentVM = DependencyProperty.UnsetValue;
}
static WindowStepState()
{
EmptyState = new WindowStepState();
EmptyState.SuperAction =
new ActionCommandVM(
new RelayCommand(delegate { throw new InvalidOperationException("Command can't be executed!"); }, false),
string.Empty);
EmptyState.StateSpecificHelpActions = new List <ActionCommandVM>();
EmptyState.ContentVM = DependencyProperty.UnsetValue;
}
protected virtual WindowStepState GetInitialStep(GetMainVMPipelineArgs args)
{
var step = new WindowStepState(
this.GlobalTitle.GetValueOrDefault("Tray Garden -- Plants configuration"),
this.Header.GetValueOrDefault("Here you configure plants"),
this.ShortName.GetValueOrDefault("plants config"),
args.PlantsConfigVM,
args.SuperAction,
args.StateSpecificHelpActions);
return step;
}
protected virtual void ClearStepsStackWithDisposing()
{
while (this.Steps.Count > 0)
{
WindowStepState currentStep = this.Steps.Pop();
var currentStepContentVM = currentStep.ContentVM as IDisposable;
if (currentStepContentVM != null)
{
currentStepContentVM.Dispose();
}
}
}
protected virtual void GoAheadWithBack(WindowStepState newState)
{
Assert.IsNotNull(newState, "New state cannot be null");
this.BackToTitleInternal = this.CurrentState.ShortName;
this.Steps.Push(newState);
this.CanBack = true;
this.NotifyPublicVisibleChanged();
}
public virtual void ReplaceInitialState(WindowStepState newHomeState)
{
this.ClearStepsStackWithDisposing();
this.Steps.Push(newHomeState);
this.CanBack = false;
this.NotifyPublicVisibleChanged();
}
public static void GoAheadWithBackIfPossible(WindowStepState newState)
{
if (GoAheadTargets != null)
{
GoAheadTargets(newState);
}
}
