/// <summary>
/// Called when a command string is received from the user.
/// If a prompt is currently active, the prompt handler is
/// asked to handle the string. Otherwise the string is
/// executed in the PowerShellContext.
/// </summary>
/// <param name="inputString">The input string to evaluate.</param>
/// <param name="echoToConsole">If true, the input will be echoed to the console.</param>
public void ExecuteCommand(string inputString, bool echoToConsole)
{
if (this.activePromptHandler != null)
{
if (echoToConsole)
{
this.WriteOutput(inputString, true);
}
if (this.activePromptHandler.HandleResponse(inputString))
{
// If the prompt handler is finished, clear it for
// future input events
this.activePromptHandler = null;
}
}
else
{
// Execute the script string but don't wait for completion
var executeTask =
this.powerShellContext
.ExecuteScriptString(
inputString,
echoToConsole,
true)
.ConfigureAwait(false);
}
}
private TPromptHandler GetPromptHandler <TPromptHandler>(
Func <IPromptHandlerContext, TPromptHandler> factoryInvoker)
where TPromptHandler : PromptHandler
{
if (this.activePromptHandler != null)
{
Logger.Write(
LogLevel.Error,
"Prompt handler requested while another prompt is already active.");
}
// Get the topmost prompt handler factory
IPromptHandlerContext promptHandlerContext =
this.promptHandlerContextStack.Peek();
TPromptHandler promptHandler = factoryInvoker(promptHandlerContext);
this.activePromptHandler = promptHandler;
this.activePromptHandler.PromptCancelled += activePromptHandler_PromptCancelled;
return(promptHandler);
}
private void activePromptHandler_PromptCancelled(object sender, EventArgs e)
{
// Clean up the existing prompt
this.activePromptHandler.PromptCancelled -= activePromptHandler_PromptCancelled;
this.activePromptHandler = null;
}
