private async Task StartReplLoopAsync(CancellationToken cancellationToken)
{
while (!cancellationToken.IsCancellationRequested)
{
string commandString = null;
int originalCursorTop = 0;
try
{
await this.WritePromptStringToHostAsync(cancellationToken);
}
catch (OperationCanceledException)
{
break;
}
try
{
originalCursorTop = await ConsoleProxy.GetCursorTopAsync(cancellationToken);
commandString = await this.ReadCommandLineAsync(cancellationToken);
}
catch (PipelineStoppedException)
{
this.WriteOutput(
"^C",
true,
OutputType.Normal,
foregroundColor: ConsoleColor.Red);
}
// Do nothing here, the while loop condition will exit.
catch (TaskCanceledException)
{ }
catch (OperationCanceledException)
{ }
catch (Exception e) // Narrow this if possible
{
this.WriteOutput(
$"\n\nAn error occurred while reading input:\n\n{e.ToString()}\n",
true,
OutputType.Error);
Logger.WriteException("Caught exception while reading command line", e);
}
finally
{
if (!cancellationToken.IsCancellationRequested &&
originalCursorTop == await ConsoleProxy.GetCursorTopAsync(cancellationToken))
{
this.WriteLine();
}
}
if (!string.IsNullOrWhiteSpace(commandString))
{
var unusedTask =
this.powerShellContext
.ExecuteScriptStringAsync(
commandString,
writeInputToHost: false,
writeOutputToHost: true,
addToHistory: true)
.ConfigureAwait(continueOnCapturedContext: false);
break;
}
}
}
public override void OnRegister()
{
_proxy = (ConsoleProxy) Facade.RetrieveProxy(ConsoleProxy.NAME);
}
void CreateConsole(Jint.Engine engine)
{
var console = new ConsoleProxy(engine, context);
engine.SetValue("console", console);
}
/// <summary>
/// Initializes a new instance of the Controller class.
/// </summary>
/// <param name="model">The model.</param>
/// <param name="setup">
/// The setup. Optional overwrite of the extensions added to the
/// console. Is not specified the Default setup is applied.
/// </param>
public Controller(object model, Action <Controller> setup = null)
: this(model, ConsoleProxy.Instance(), setup)
{
}
/// <summary>
/// Waits for a short period.
/// </summary>
/// <param name="op">The operation data.</param>
/// <param name="done">The completion callback.</param>
public void HandleOp(OperationData op, Action done)
{
ConsoleProxy.log("Waiting...");
window.setTimeout(done, 1500);
}
