/// <summary>
/// Register a multiform instance with the given name.
/// </summary>
/// <param name="name"></param>
/// <param name="instance"></param>
internal void RegisterMultiform(Multiform instance)
{
if (RegisteredMultiforms.ContainsKey(instance.Name) || instance.Registered)
{
throw new MultiformManagerException(
String.Format(
"The multiform with name '{0}' has already been registered.", instance.Name
)
);
}
RegisteredMultiforms.Add(instance.Name, instance);
instance.PostRegister(this);
}
/// <summary>
/// Activate the multiform with the given name.
/// </summary>
/// <param name="name"></param>
public void Activate(Multiform sender, string name, MultiformConstructionArgs args = null)
{
if (ActiveMultiforms.ContainsKey(name))
{
throw new MultiformManagerException(
String.Format("Multiform with name '{0}' has already been constructed.", name));
}
if (!RegisteredMultiforms.ContainsKey(name))
{
throw new MultiformManagerException(
String.Format("No multiform with name '{0}' exists.", name));
}
var multiform = RegisteredMultiforms[name];
if (multiform.TransitionConstraints != null)
{
var constraints = multiform.TransitionConstraints;
var senderName = sender == null ? null : sender.Name;
if ((constraints.AllowedFrom != null && !constraints.AllowedFrom.Contains(senderName)) ||
(constraints.NotAllowedFrom != null && constraints.NotAllowedFrom.Contains(senderName)))
{
if (senderName == null)
{
throw new MultiformManagerException(
String.Format(
"The transition constraints on multiform '{0}' prevent it from " +
"being used as the initial multiform in the engine.", name
)
);
}
throw new MultiformManagerException(
String.Format(
"The transition constraints on multiform '{0}' prevent the multiform '{1}' from " +
"being able to transition to it.", name, senderName
)
);
}
}
args = args == null ? new MultiformConstructionArgs(sender) : args;
ApplyOrQueueEvent(new ActivateEvent(name, args));
}
public MultiformConstructionArgs(Multiform sender)
{
Sender = sender;
}
/// <summary>
/// Deactivate the given multiform instance.
/// </summary>
/// <param name="multiform"></param>
public void Deactivate(Multiform multiform)
{
Deactivate(multiform.Name);
}
