/// <summary>
/// Konstruktor.
/// </summary>
/// <param name="szSessKey">Key welcher für die Identifikation des States in der Session verwendet wird.</param>
public StateMachine(string szSessKey)
{
sessionKey = szSessKey + "State";
// Wir versuchen den aktuellen Status aus der Session zu laden.
if (null != System.Web.HttpContext.Current.Session[sessionKey])
{
currentState = (ForumStates)System.Web.HttpContext.Current.Session[sessionKey];
System.Web.HttpContext.Current.Session[sessionKey] = currentState;
}
}
/// <summary>
/// Konstruktor.
/// </summary>
/// <param name="szSessKey">Key welcher für die Identifikation des States in der Session verwendet wird.</param>
public StateMachine(string szSessKey)
{
sessionKey = szSessKey + "State";
// Wir versuchen den aktuellen Status aus der Session zu laden.
if (null != System.Web.HttpContext.Current.Session[sessionKey])
{
currentState = (ForumStates)System.Web.HttpContext.Current.Session[sessionKey];
System.Web.HttpContext.Current.Session[sessionKey] = currentState;
}
}
/// <summary>
/// Signalisiert ein Event, welches den Status der Statusmaschine beeinflussen kann. Der Status wird wenn nötig
/// angepasst.
/// </summary>
/// <returns>true, wenn eine Änderung erfolgt ist.</returns>
/// <param name="NewEvent">Das aufgetretene Ereignis.</param>
public virtual bool SetEvent(StateEvents newEvent)
{
bool changed = false;
switch (currentState)
{
case ForumStates.ForumView: // Aktueller Status MainView.
{
switch (newEvent)
{
case StateEvents.ShowThread:
currentState = ForumStates.ThreadView;
changed = true;
break;
case StateEvents.NewArticle:
currentState = ForumStates.WriteArticleView;
changed = true;
break;
}
break;
}
case ForumStates.ThreadView:
{
switch (newEvent)
{
case StateEvents.CancelToForumView:
currentState = ForumStates.ForumView;
changed = true;
break;
case StateEvents.NewArticle:
currentState = ForumStates.WriteArticleView;
changed = true;
break;
}
break;
}
case ForumStates.WriteArticleView:
{
if ((newEvent == StateEvents.CancelToThreadView) ||
(newEvent == StateEvents.ShowThread))
{
currentState = ForumStates.ThreadView;
changed = true;
}
else if (newEvent == StateEvents.CancelToForumView)
{
currentState = ForumStates.ForumView;
changed = true;
}
break;
}
case ForumStates.SearchResults:
{
if (newEvent == StateEvents.CancelToForumView)
{
currentState = ForumStates.ForumView;
changed = true;
}
else if (newEvent == StateEvents.ShowThread)
{
currentState = ForumStates.ThreadView;
changed = true;
}
break;
}
}
if (newEvent == StateEvents.SearchText)
{
currentState = ForumStates.SearchResults;
changed = true;
}
// Abspeichern des aktuellen Status.
if (changed)
{
System.Web.HttpContext.Current.Session[sessionKey] = currentState;
}
return(changed);
}
/// <summary>
/// Setzt den Zustand der Statusmaschine zurück.
/// </summary>
public void ResetState()
{
currentState = ForumStates.ForumView;
System.Web.HttpContext.Current.Session[sessionKey] = currentState;
}
/// <summary>
/// Signalisiert ein Event, welches den Status der Statusmaschine beeinflussen kann. Der Status wird wenn nötig
/// angepasst.
/// </summary>
/// <returns>true, wenn eine Änderung erfolgt ist.</returns>
/// <param name="NewEvent">Das aufgetretene Ereignis.</param>
public virtual bool SetEvent(StateEvents newEvent)
{
bool changed = false;
switch(currentState)
{
case ForumStates.ForumView: // Aktueller Status MainView.
{
switch(newEvent)
{
case StateEvents.ShowThread:
currentState = ForumStates.ThreadView;
changed = true;
break;
case StateEvents.NewArticle:
currentState = ForumStates.WriteArticleView;
changed = true;
break;
}
break;
}
case ForumStates.ThreadView:
{
switch (newEvent)
{
case StateEvents.CancelToForumView:
currentState = ForumStates.ForumView;
changed = true;
break;
case StateEvents.NewArticle:
currentState = ForumStates.WriteArticleView;
changed = true;
break;
}
break;
}
case ForumStates.WriteArticleView:
{
if((newEvent == StateEvents.CancelToThreadView) ||
(newEvent == StateEvents.ShowThread))
{
currentState = ForumStates.ThreadView;
changed = true;
}
else if (newEvent == StateEvents.CancelToForumView)
{
currentState = ForumStates.ForumView;
changed = true;
}
break;
}
case ForumStates.SearchResults:
{
if (newEvent == StateEvents.CancelToForumView)
{
currentState = ForumStates.ForumView;
changed = true;
}
else if (newEvent == StateEvents.ShowThread)
{
currentState = ForumStates.ThreadView;
changed = true;
}
break;
}
}
if (newEvent == StateEvents.SearchText)
{
currentState = ForumStates.SearchResults;
changed = true;
}
// Abspeichern des aktuellen Status.
if(changed)
System.Web.HttpContext.Current.Session[sessionKey] = currentState;
return changed;
}
/// <summary>
/// Setzt den Zustand der Statusmaschine zurück.
/// </summary>
public void ResetState()
{
currentState = ForumStates.ForumView;
System.Web.HttpContext.Current.Session[sessionKey] = currentState;
}
