/// <summary>
/// Initializes important members of this application.
/// </summary>
/// <param name="mainWindow">
/// A static instance of <see cref="MainWindow"/> which will be provided for other classes.
/// </param>
/// <param name="scheduler">
/// A <see cref="TaskScheduler"/> used to start the start <see cref="Task"/>s.
/// </param>
/// <exception cref="ArgumentNullException">
/// The parameter was passed as null.
/// </exception>
public static async void StartAsync(MainWindow mainWindow, TaskScheduler scheduler)
{
if (mainWindow == null)
{
throw new ArgumentNullException("mainWindow");
}
Io.CreateFiles();
var loadFilesTask = LoadFilesAsync();
MainWindow = mainWindow;
// ToDo: C# 6.0 auto-initialization of properties
NoTextChangedPlox = false;
cancellationToken = new CancellationTokenSource();
highlightSyntaxTask = new Task(() => FacilitateCoding.HighlightSyntaxAsync(RecognitionEngine.AllWordsInCode, CurrentProgrammingLanguage), CancellationToken.None, TaskCreationOptions.LongRunning);
pseudoSenseTask = new Task(() => FacilitateCoding.PseudoSenseAsync(RecognitionEngine.PreviousWord, RecognitionEngine.AllWordsInCode, CurrentProgrammingLanguage, MainWindow.CodeListBox), CancellationToken.None, TaskCreationOptions.LongRunning);
errorSearchTask =
new Task(
() =>
MistakeEngine.MistakeSearchAsync(
RecognitionEngine.AllWordsInCode,
mainWindow.ErrorListView,
TaskScheduler.FromCurrentSynchronizationContext()),
CancellationToken.None,
TaskCreationOptions.LongRunning);
await Task.Factory.StartNew(() => Gui.FillProgrammingLanguageComboBoxAsync(ProgrammingLanguages, MainWindow.ProgrammingLanguageComboBox), CancellationToken.None, TaskCreationOptions.None, scheduler);
await loadFilesTask.ContinueWith(task => Gui.FillLocalizationLanguageComboBoxAsync(LocalizationLanguages, MainWindow.LocalizationLanguageComboBox), scheduler);
MainWindow.LocalizationLanguageComboBox.SelectedItem = currentLocalizationLanguage["language"];
MainWindow.ProgrammingLanguageComboBox.SelectedItem = currentProgrammingLanguage.Name;
mainWindow.Show();
mainWindow.CodeTextBox.Focus();
}
/// <summary>
/// Starts the performance intensive <see cref="Task"/>s which round up <see cref="MainClass.CodeAlteredAsync"/>.
/// </summary>
/// <param name="scheduler">
/// The <see cref="TaskScheduler"/> containing GUI-context.
/// </param>
/// <exception cref="ArgumentNullException">
/// The parameter was passed as null.
/// </exception>
public static async void StartPerformanceIntensiveCodeAlteredTasksAsync(TaskScheduler scheduler)
{
if (scheduler == null)
{
throw new ArgumentNullException("scheduler");
}
switch (highlightSyntaxTask.Status)
{
case TaskStatus.Created:
highlightSyntaxTask.Start(scheduler);
break;
case TaskStatus.RanToCompletion:
case TaskStatus.Canceled:
case TaskStatus.Faulted:
highlightSyntaxTask.Dispose();
highlightSyntaxTask =
new Task(
() => FacilitateCoding.HighlightSyntaxAsync(RecognitionEngine.AllWordsInCode, CurrentProgrammingLanguage),
cancellationToken.Token,
TaskCreationOptions.LongRunning);
highlightSyntaxTask.Start(scheduler);
break;
}
switch (errorSearchTask.Status)
{
case TaskStatus.Created:
errorSearchTask.Start(scheduler);
break;
case TaskStatus.RanToCompletion:
case TaskStatus.Faulted:
errorSearchTask.Dispose();
errorSearchTask = new Task(
() => MistakeEngine.MistakeSearchAsync(RecognitionEngine.AllWordsInCode, MainWindow.ErrorListView, scheduler),
cancellationToken.Token,
TaskCreationOptions.LongRunning);
errorSearchTask.Start(scheduler);
break;
}
try
{
highlightSyntaxTask.Wait();
}
catch (AggregateException)
{
if (highlightSyntaxTask.Exception != null)
{
Console.WriteLine(@"AggregateException thrown by {0}: {1}", highlightSyntaxTask.Id, highlightSyntaxTask.Exception.Message);
foreach (var innerException in highlightSyntaxTask.Exception.InnerExceptions)
{
Console.WriteLine(@"InnerException:{0}", innerException.Message);
}
}
}
try
{
errorSearchTask.Wait();
}
catch (AggregateException)
{
if (errorSearchTask.Exception != null)
{
Console.WriteLine(@"AggregateException thrown by {0}: {1}", errorSearchTask.Id, errorSearchTask.Exception.Message);
foreach (var innerException in errorSearchTask.Exception.InnerExceptions)
{
Console.WriteLine(@"InnerException:{0}", innerException.Message);
}
}
}
}
/// <summary>
/// Starts the fast operations to be executed at every user interaction with the <see cref="RichTextBox"/>.
/// </summary>
/// <param name="richTextBox">
/// The <see cref="RichTextBox"/> which text was changed.
/// </param>
/// <param name="eventArgs">
/// The <see cref="TextChangedEventArgs"/> containing specific information about the user interaction.
/// </param>
/// <param name="scheduler">
/// The <see cref="TaskScheduler"/> containing GUI-context.
/// </param>
/// <returns>
/// The <see cref="Task"/>.
/// </returns>
/// <exception cref="ArgumentNullException">
/// One or all of the parameters was/ were passed as null.
/// </exception>
public static async Task CodeAlteredAsync(RichTextBox richTextBox, TextChangedEventArgs eventArgs, TaskScheduler scheduler)
{
if (richTextBox == null)
{
throw new ArgumentNullException("richTextBox");
}
if (eventArgs == null)
{
throw new ArgumentNullException("eventArgs");
}
if (scheduler == null)
{
throw new ArgumentNullException("scheduler");
}
if (NoTextChangedPlox)
{
return;
}
var text =
new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd).Text.Replace(
" ",
string.Empty);
if (richTextBox.Document == null || text == "\r\n")
{
RecognitionEngine.AllWordsInCode.Clear();
MistakeEngine.Mistakes.Clear();
MainWindow.ErrorListView.Items.Clear();
return;
}
TextChange textChange = null;
var textChanges = eventArgs.Changes;
if (textChanges != null && textChanges.Count > 0)
{
textChange = textChanges.First();
}
if (textChange == null || (textChange.AddedLength <= 0 && textChange.RemovedLength <= 0))
{
return;
}
IEnumerable <Word> changedWords = RecognitionEngine.RecognizeWordsInCode(richTextBox.CaretPosition, CurrentProgrammingLanguage).Result;
var newWord = changedWords.First();
if (newWord.Content == string.Empty)
{
await FacilitateCoding.PseudoSenseAsync(newWord, RecognitionEngine.AllWordsInCode, CurrentProgrammingLanguage, MainWindow.CodeListBox);
return;
}
switch (pseudoSenseTask.Status)
{
case TaskStatus.Created:
pseudoSenseTask.Start(scheduler);
break;
case TaskStatus.RanToCompletion:
case TaskStatus.Faulted:
pseudoSenseTask.Dispose();
pseudoSenseTask = new Task(
() => FacilitateCoding.PseudoSenseAsync(newWord, RecognitionEngine.AllWordsInCode, CurrentProgrammingLanguage, MainWindow.CodeListBox),
cancellationToken.Token,
TaskCreationOptions.LongRunning);
pseudoSenseTask.Start(scheduler);
break;
}
}