private void OnNewState(State newState)
{
if (NewState != null)
{
NewState(this, new EventArgs<State>(newState));
}
}
public StateMachine(State initialState, IEnumerable inputAlphabet)
{
this.initialState = initialState;
this.inputAlphabet = new ArrayList();
foreach (object o in inputAlphabet)
{
this.inputAlphabet.Add(o);
}
}
private void OnStateWaitingForInput(State state)
{
if (this.syncContext != null && this.syncContext.InvokeRequired)
{
this.syncContext.BeginInvoke(new Procedure<State>(OnStateWaitingForInput), new object[] { state });
}
else
{
if (StateWaitingForInput != null)
{
StateWaitingForInput(this, new EventArgs<State>(state));
}
}
}
private void SetCurrentState(State newState)
{
if (this.currentState != null && this.currentState.IsFinalState)
{
throw new InvalidOperationException("state machine is already in a final state");
}
this.currentState = newState;
this.currentState.StateMachine = this;
OnNewState(this.currentState);
this.currentState.OnEnteredState();
if (!this.currentState.IsFinalState)
{
ProcessQueuedInput();
}
}
public override void ProcessInput(object input, out State newState)
{
if (input.Equals(PrivateInput.GoToReadyToInstall))
{
newState = new ReadyToInstallState(this.installerPath, this.newVersionInfo);
}
else if (input.Equals(PrivateInput.GoToError))
{
string errorMessage = PdnResources.GetString("Updates.ExtractingState.GenericError");
newState = new ErrorState(this.exception, errorMessage);
}
else if (input.Equals(PrivateInput.GoToAborted))
{
newState = new AbortedState();
}
else
{
throw new ArgumentException();
}
}
public abstract void ProcessInput(object input, out State newState);
public override void ProcessInput(object input, out State newState)
{
if (input.Equals(PrivateInput.GoToExtracting))
{
newState = new ExtractingState(this.zipTempName, this.downloadMe);
}
else if (input.Equals(PrivateInput.GoToError))
{
string errorMessage;
if (this.exception is WebException)
{
errorMessage = Utility.WebExceptionToErrorMessage((WebException)this.exception);
}
else
{
errorMessage = PdnResources.GetString("Updates.DownloadingState.GenericError");
}
newState = new ErrorState(this.exception, errorMessage);
}
else if (input.Equals(PrivateInput.GoToAborted))
{
newState = new AbortedState();
}
else
{
throw new ArgumentException();
}
}
