private async void MainWindow_OnClosing(object sender, CancelEventArgs e)
{
if (CloseState.ForceClose.Equals(WindowCloseState))
{
return;
}
if (CloseState.Closing.Equals(WindowCloseState))
{
if (WindowState.Equals(WindowState.Minimized))
{
WindowState = WindowState.Normal;
}
e.Cancel = true;
SystemSounds.Exclamation.Play();
return;
}
WindowCloseState = CloseState.Closing;
if (Context.IsNotSaved)
{
e.Cancel = true;
if (WindowState.Equals(WindowState.Minimized))
{
WindowState = WindowState.Normal;
SystemSounds.Exclamation.Play();
RootDialog.Focus();
}
if (RootDialog.IsOpen)
{
DialogHost.CloseDialogCommand.Execute(null, RootDialog);
}
var dialog = new DecisionDialog("Configuration has changed", "Do you want to save before closing?");
var result = (MessageBoxResult?)await DialogHost.Show(dialog, "RootDialog");
if (result == null)
{
return;
}
switch (result)
{
case MessageBoxResult.None:
case MessageBoxResult.Cancel:
WindowCloseState = CloseState.None;
return;
case MessageBoxResult.OK:
case MessageBoxResult.Yes:
Context.SaveContext();
WindowCloseState = CloseState.ForceClose;
Close();
break;
case MessageBoxResult.No:
WindowCloseState = CloseState.ForceClose;
Close();
break;
}
}
}