internal static void GuessWorker(
AsyncGuessState guessState)
{
if (guessState.Canceled)
{
return;
}
guessState.Result = null;
guessState.Result = GetFromCache(guessState.Phrase);
if (guessState.Result == null)
{
guessState.Result = googleGuesser.Guess(guessState.Phrase, guessState.NetworkSetting);
}
AddToCache(guessState.Result);
GuessCompletedEventArgs e =
new GuessCompletedEventArgs(
guessState,
null,
false,
guessState);
try
{
guessState.AsyncOperation.PostOperationCompleted(GuessCompleted, e);
}
catch (InvalidOperationException)
{
}
guessState.Canceled = true;
}
public static void CancelAsync(AsyncGuessState guessState)
{
if (guessState == null)
{
throw new ArgumentNullException("guessState");
}
AsyncOperation asyncOp = guessState.AsyncOperation;
GuessCompletedEventArgs e =
new GuessCompletedEventArgs(
guessState,
null,
true,
guessState);
try
{
asyncOp.PostOperationCompleted(GuessCompleted, e);
}
catch (InvalidOperationException)
{
}
guessState.Canceled = true;
}
public static GuessResult Guess(string phrase, NetworkSetting networkSetting, EventHandler <GuessCompletedEventArgs> guessCompletedHandler)
{
AsyncGuessState state = null;
bool done = false;
EventHandler <GuessCompletedEventArgs> myHandler = delegate(object sender, GuessCompletedEventArgs e)
{
try
{
FreeCL.Forms.Application.EndGuiLockingTask();
if (guessCompletedHandler != null)
{
guessCompletedHandler.Invoke(state, e);
}
}
finally
{
done = true;
}
};
FreeCL.Forms.Application.StartGuiLockingTask(LangPack.TranslateString("Language detection"));
state = GuessAsync(phrase, networkSetting, myHandler);
while (!done)
{
System.Windows.Forms.Application.DoEvents();
Thread.Sleep(50);
}
return(state.Result);
}
internal GuessCompletedEventArgs(
AsyncGuessState guessState,
Exception e,
bool canceled,
object state) : base(e, canceled, state)
{
this.guessState = guessState;
this.result = guessState.Result;
}
public static AsyncGuessState GuessAsync(string phrase, NetworkSetting networkSetting, EventHandler <GuessCompletedEventArgs> guessCompletedHandler)
{
AsyncOperation asyncOp = AsyncOperationManager.CreateOperation(DateTime.Now.Ticks);
AsyncGuessState state = new AsyncGuessState(phrase, networkSetting, asyncOp, guessCompletedHandler);
WorkerEventHandler workerDelegate = new WorkerEventHandler(GuessWorker);
workerDelegate.BeginInvoke(
state,
null,
null);
return(state);
}
internal static void GuessWorker(
AsyncGuessState guessState)
{
if(guessState.Canceled)
return;
guessState.Result = null;
guessState.Result = GetFromCache(guessState.Phrase);
if(guessState.Result == null)
{
guessState.Result = googleGuesser.Guess(guessState.Phrase, guessState.NetworkSetting);
}
AddToCache(guessState.Result);
GuessCompletedEventArgs e =
new GuessCompletedEventArgs(
guessState,
null,
false,
guessState);
try
{
guessState.AsyncOperation.PostOperationCompleted(GuessCompleted, e);
}
catch (InvalidOperationException)
{
}
guessState.Canceled = true;
}
public static AsyncGuessState GuessAsync(string phrase, NetworkSetting networkSetting, EventHandler<GuessCompletedEventArgs> guessCompletedHandler)
{
AsyncOperation asyncOp = AsyncOperationManager.CreateOperation(DateTime.Now.Ticks);
AsyncGuessState state = new AsyncGuessState(phrase, networkSetting, asyncOp, guessCompletedHandler);
WorkerEventHandler workerDelegate = new WorkerEventHandler(GuessWorker);
workerDelegate.BeginInvoke(
state,
null,
null);
return state;
}
public static void CancelAsync(AsyncGuessState guessState)
{
if(guessState == null)
throw new ArgumentNullException("guessState");
AsyncOperation asyncOp = guessState.AsyncOperation;
GuessCompletedEventArgs e =
new GuessCompletedEventArgs(
guessState,
null,
true,
guessState);
try
{
asyncOp.PostOperationCompleted(GuessCompleted, e);
}
catch (InvalidOperationException)
{
}
guessState.Canceled = true;
}
internal GuessCompletedEventArgs(
AsyncGuessState guessState,
Exception e,
bool canceled,
object state)
: base(e, canceled, state)
{
this.guessState = guessState;
this.result = guessState.Result;
}
