public MainWindowViewModel(ISynchronizationContext synchronizationContext, LocalDirectory localDirectory)
{
this.synchronizationContext = synchronizationContext;
this.localDirectory = localDirectory;
localDirectory.FileFinded += (sender, e) =>
{
synchronizationContext.Invoke(() =>
{
searchResults.Add(new FileViewModel(e.FileEntry));
});
};
localDirectory.SearchStarted += (sender, e) =>
{
synchronizationContext.Invoke(() =>
{
SearchInProcess = true;
});
};
localDirectory.SearchFinished += (sender, e) =>
{
synchronizationContext.Invoke(() =>
{
SearchInProcess = false;
});
};
localDirectory.SearchPaused += (sender, e) =>
{
synchronizationContext.Invoke(() =>
{
SearchIsPaused = true;
});
};
localDirectory.SearchResumed += (sender, e) =>
{
synchronizationContext.Invoke(() =>
{
SearchIsPaused = false;
});
};
searchCommand = new DelegateCommand(Search, () => CanSearch);
pauseCommand = new DelegateCommand(() => localDirectory.PauseSearch(), () => CanPause);
resumeCommand = new DelegateCommand(() => localDirectory.ResumeSearch(), () => CanResume);
stopCommand = new DelegateCommand(() => localDirectory.StopSearch(), () => CanStop);
}
NetworkCredential Preprocessing.ICredentialsCache.QueryCredentials(Uri uri, string authType)
{
lock (credentialCacheLock)
{
if (credentialCache == null)
{
credentialCache = new NetworkCredentialsStorage(credentialsCacheStorage, new Persistence.SystemDataProtection());
}
var cred = credentialCache.GetCredential(uri);
if (cred != null)
{
return(cred);
}
var ret = uiInvoke.Invoke <NetworkCredential>(() =>
NetworkCredentialsDialogController.ShowSheet(parentWindow,
NetworkCredentialsStorage.GetRelevantPart(uri).ToString(),
authType == "protected-archive")).Result;
if (ret == null)
{
return(null);
}
credentialCache.Add(uri, ret);
credentialCache.StoreSecurely();
return(ret);
}
}
NetworkCredential Preprocessing.ICredentialsCache.QueryCredentials(Uri uri, string authType)
{
lock (credentialCacheLock)
{
if (credentialCache == null)
{
credentialCache = new NetworkCredentialsStorage(credentialsCacheStorage);
}
var cred = credentialCache.GetCredential(uri);
if (cred != null)
{
return(cred);
}
var ret = uiInvokeSynchronization.Invoke <NetworkCredential>(() =>
CredUIUtils.ShowCredentialsDialog(appWindow.Handle,
NetworkCredentialsStorage.GetRelevantPart(uri).ToString(),
authType == "protected-archive")).Result;
if (ret == null)
{
return(null);
}
credentialCache.Add(uri, ret);
credentialCache.StoreSecurely();
return(ret);
}
}
public void GetUrl(NSAppleEventDescriptor evt, NSAppleEventDescriptor withReplyEvent)
{
passedUrl = evt.ParamDescriptorForKeyword(FourCC("----")).StringValue;
if (isLoaded)
{
invoke.Invoke(LoadPassedUrl);
}
}
async Task IPreprocessingStep.Execute(IPreprocessingStepCallback callback)
{
await callback.BecomeLongRunning();
callback.SetStepDescription("Opening workspace " + source.FullPath);
callback.SetOption(PreprocessingOptions.Silent, true);
foreach (var entry in await await invoke.Invoke(() => workspacesManager.LoadWorkspace(source.Location, callback.Cancellation)).WithCancellation(callback.Cancellation))
{
callback.YieldChildPreprocessing(entry.Log, entry.IsHiddenLog);
}
}
public async Task <ResultCode> MoveToDateBound(DateTime d, bool reversedMode)
{
using (trace.NewFrame)
{
trace.Info("Moving to the date {0} than '{1}' by sending 'get {2} bound' request to all readers",
reversedMode ? "less (or eq)" : "greater (or eq)", d, reversedMode ? "lower (rev)" : "lower");
ResultCode resultCode;
if (reversedMode)
{
currentDate = MessageTimestamp.MinValue;
}
else
{
currentDate = MessageTimestamp.MaxValue;
}
Task <DateBoundPositionResponseData> getBoundsTask = null;
for (int iteration = 0; ; ++iteration)
{
trace.Info("it's iteration {0} of trying to send the 'get date bound' request to reader", iteration);
var modelThreadCall = invoke.Invoke(() =>
{
// This code must be executing in the model thread
using (trace.NewFrame)
{
if (source.IsDisposed)
{
trace.Warning("reader is disposed");
// This TimeGapsDetector is probably disposed too or will be soon.
// Returning null will make the main algorithm wait.
// During waiting it'll detect stop condition.
return(null);
}
trace.Info("the reader is idling. Getting date bound.");
return(source.GetDateBoundPosition(d,
reversedMode ? ValueBound.LowerReversed : ValueBound.Lower,
CancellationToken.None
)); // todo: cancellation
}
});
trace.Info("waiting the completion of 'get date bound' request scheduler");
if (IsStopOrInvalidate(resultCode = await owner.WaitEvents(Timeout.Infinite, modelThreadCall)))
{
return(resultCode);
}
getBoundsTask = await modelThreadCall;
if (getBoundsTask != null)
{
trace.Info("the 'get date bound' request was successfully sent to reader.");
break;
}
trace.Info("reader is not handled. Waiting...");
if (IsStopOrInvalidate(resultCode = await owner.WaitEvents(1000, null)))
{
return(resultCode);
}
}
trace.Info("waiting for the response from the reader");
if (IsStopOrInvalidate(resultCode = await owner.WaitEvents(30000, getBoundsTask)))
{
return(resultCode);
}
if (resultCode != ResultCode.UserEvent)
{
trace.Warning("reader didn't respond. Giving up by invalidating current progress.");
return(ResultCode.Invalidate);
}
bool ret = HandleResponse(await getBoundsTask, reversedMode);
trace.Info("returning {0}", ret);
return(ret ? ResultCode.Ok : ResultCode.None);
}
}
/// <summary>
/// Calls the <paramref name="action"/> function in the synchronization context
/// and returns the Task that is complete when passed function returned.
/// </summary>
public static Task Invoke(this ISynchronizationContext sync, Action action)
{
return(sync.Invoke(() => { action(); return 0; }));
}
