/// <summary>
/// Override this method to execute the command
/// </summary>
private async void OnExecute()
{
try
{
IsCancelled = false;
await ExecuteOnMainThreadAsync();
if (IsCancelled)
{
return;
}
_ = JoinableTaskFactory.RunAsync(async() =>
{
try
{
await Task.Yield(); // get off the caller's callstack.
await ExecuteAsync();
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
await CompleteOnMainThreadAsync();
}
catch (OperationCanceledException)
{
// --- This exception is expected because we signaled the cancellation token
IsCancelled = true;
OnCancellation();
}
catch (AggregateException ex)
{
// --- ignore AggregateException containing only OperationCanceledException
if (ex.InnerException is OperationCanceledException)
{
IsCancelled = true;
OnCancellation();
}
else
{
OnException(ex);
}
}
finally
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
await FinallyOnMainThreadAsync();
if (UpdateUiWhenComplete)
{
VsxAsyncPackage.UpdateCommandUi();
}
}
});
}
catch (Exception ex)
{
ExceptionHandler.Report(ex);
}
}
public static async void HandleDebugKeys(this SpectrumToolWindowViewModelBase vm, KeyEventArgs args)
{
var machine = vm.EmulatorViewModel.Machine;
var state = vm.EmulatorViewModel.MachineState;
if (args.Key == Key.F5)
{
if (WindowsKeyboard.Modifiers == ModifierKeys.None)
{
// --- Run in Debug mode
args.Handled = true;
machine.StartDebug();
}
else if (WindowsKeyboard.Modifiers == ModifierKeys.Control)
{
args.Handled = true;
machine.Start();
}
}
else
{
if (state != VmState.Paused)
{
return;
}
if (args.Key == Key.F11 && WindowsKeyboard.Modifiers == ModifierKeys.None)
{
// --- Step into
args.Handled = true;
await machine.StepInto();
}
else if (args.Key == Key.System && args.SystemKey == Key.F10 && WindowsKeyboard.Modifiers == ModifierKeys.None)
{
// --- Step over
args.Handled = true;
await machine.StepOver();
}
else if (args.Key == Key.F12 && WindowsKeyboard.Modifiers == ModifierKeys.None)
{
// --- Step over
args.Handled = true;
await machine.StepOut();
}
}
if (args.Handled)
{
VsxAsyncPackage.UpdateCommandUi();
}
}