/// <summary>
/// Returns true if the step has references all the way to the root.
/// </summary>
/// <param name="instance">Instance to check</param>
/// <param name="checkIfPropertyAccessed">Check if property has been accessed on the instance.</param>
/// <returns></returns>
internal bool IsReferencedToRoot(ModelInstance instance, bool checkIfPropertyAccessed)
{
// Exit immediately if the instance is not valid for the current step filter
if (Filter != null && !Filter.IsInstanceOfType(instance))
{
return(false);
}
// Check if the current property has been accessed on the instance
if (checkIfPropertyAccessed && !instance.HasBeenAccessed(Property))
{
return(false);
}
//if there's no previous steps then the step directly applies to the instance
if (PreviousStep == null)
{
return(true);
}
//unless the previous step has references the step is not relevant to the instance.
foreach (ModelReference parentReference in instance.GetInReferences((ModelReferenceProperty)PreviousStep.Property))
{
if (PreviousStep.IsReferencedToRoot(parentReference.In, false))
{
return(true);
}
}
return(false);
}
private void Initialize()
{
if (PreviousStep.Step != null)
{
newStep = PreviousStep.Clone();
foreach (Transform child in newStep.Step.transform)
{
//Skip the HelpObject
if (newStep.Help != null && child == newStep.Help.transform)
{
continue;
}
components.Add(new InstructionStepComponent(child.gameObject));
}
}
else
{
var prefab = AssetDatabase.LoadAssetAtPath <GameObject>("Assets/Prefabs/InstructionStep.prefab");
newStep = new InstructionStep(Instantiate(prefab), null);
newStep.Step.name = prefab.name;
}
newStep.Step.SetActive(true);
EditorGUIUtility.PingObject(newStep.Step);
Selection.activeGameObject = newStep.Step;
SceneView.lastActiveSceneView.FrameSelected();
HelpObject = newStep.Help;
initialized = true;
}
/// <summary>
/// Set the view pager into which this wizard should load the steps
/// </summary>
/// <param name="viewPager"></param>
public void SetViewPager(ViewPager viewPager)
{
ViewPager = viewPager;
ViewPager.Adapter = new WizardPagerAdapter(FragmentManager, WizardFlow, StateManager, this);
//ViewPager.PageScrolled += (sender, e) => { };
ViewPager.PageSelected += (sender, e) =>
{
if (FragmentManager.BackStackEntryCount < e.Position)
{
FragmentManager.BeginTransaction().AddToBackStack(null).Commit();
}
else if (FragmentManager.BackStackEntryCount > e.Position)
{
FragmentManager.PopBackStack();
}
};
ViewPager.PageScrollStateChanged += (sender, e) =>
{
switch (e.State)
{
case ViewPager.ScrollStateDragging: //Indicates that the pager is currently being dragged by the user.
PreviousPosition = ViewPager.CurrentItem;
PreviousStep = CurrentStep;
break;
case ViewPager.ScrollStateSettling: //Indicates that the pager is in the process of settling to a final position.
if (StepChanged != null)
{
StepChanged();
}
break;
case ViewPager.ScrollStateIdle: //Indicates that the pager is in an idle, settled state.
if (PreviousState == ViewPager.ScrollStateSettling)
{
if (ViewPager.CurrentItem > PreviousPosition)
{
ProcessStepBeforeChange(PreviousStep, PreviousPosition);
ViewPager.Adapter.NotifyDataSetChanged(); //Notifies the attached observers that the underlying data has been changed and any View reflecting the data set should refresh itself.
}
else
{
PreviousStep.OnExit(StepExitCode.ExitPrevious);
}
}
break;
}
PreviousState = e.State;
};
}
/// <summary>
/// Recursively walks up the path the current step is a member of until the
/// root is reached and then initiates path change notification events.
/// </summary>
/// <param name="instance"></param>
internal void Notify(ModelInstance instance)
{
// Exit immediately if the instance is not valid for the current step filter
if (Filter != null && !Filter.IsInstanceOfType(instance))
{
return;
}
// Keep walking if there are more tokens
if (PreviousStep != null)
{
foreach (ModelReference parentReference in instance.GetInReferences((ModelReferenceProperty)PreviousStep.Property))
{
PreviousStep.Notify(parentReference.In);
}
}
// Otherwise, notify the path with the first instance instance
else
{
Path.Notify(instance);
}
}