/// <summary>
/// Used to indicate that the application has
/// transitioned form one state to another.
/// </summary>
/// <param name="newState"></param>
public void MoveNewsHandlerStateTo(FeedSourceBusyState newState)
{
FeedSourceBusyState oldState = this._sourceBusyState;
bool shouldCancel = false;
if (newState == oldState) // not really a new state
{
return;
}
if (NewsHandlerBeforeStateMove != null)
{
try
{
NewsHandlerBeforeStateMoveCancelEventArgs args = new NewsHandlerBeforeStateMoveCancelEventArgs(oldState, newState, false);
NewsHandlerBeforeStateMove(this, args);
shouldCancel = args.Cancel;
}
catch { }
}
if (shouldCancel)
{
return;
}
this._sourceBusyState = newState;
if (NewsHandlerStateMoved != null)
{
try
{
NewsHandlerStateMoved(this, new NewsHandlerStateMovedEventArgs(oldState, newState));
}
catch { }
}
}
public NewsHandlerBeforeStateMoveCancelEventArgs(FeedSourceBusyState oldState, FeedSourceBusyState newState, bool cancel)
: base(cancel)
{
this.OldState = oldState;
this.NewState = newState;
}
public NewsHandlerStateMovedEventArgs(FeedSourceBusyState oldState, FeedSourceBusyState newState)
{
this.OldState = oldState;
this.NewState = newState;
}