private async void OnCommand_Exit_Execute()
{
var msgSaveBeforeExitPreview = new MessageGpxViewerSaveBeforeExit_Preview();
this.Messenger.Publish(msgSaveBeforeExitPreview);
if (msgSaveBeforeExitPreview.AnyUnsavedChanges)
{
var srvMessageBox = this.GetViewService <IMessageBoxService>();
var msgResult = await srvMessageBox.ShowAsync(
"RK Gpx Viewer", "Save changes before exit?", MessageBoxButtons.YesNoCancel);
switch (msgResult)
{
case MessageBoxResult.Yes:
var msgSaveBeforeExit_Save = new MessageGpxViewerSaveBeforeExit_Save();
this.Messenger.Publish(msgSaveBeforeExit_Save);
foreach (var actSaveTask in msgSaveBeforeExit_Save.SaveTasks)
{
await actSaveTask;
}
break;
case MessageBoxResult.No:
// Just close, no saving
break;
case MessageBoxResult.Cancel:
return;
default:
throw new ArgumentException($"Unexpected MessageBoxResult {msgResult}");
}
}
this.ExitApproved = true;
this.CloseWindow(null);
}
private void OnMessageReceived(MessageGpxViewerSaveBeforeExit_Save message)
{
message.SaveTasks.Add(this.OnCommand_SaveAll_ExecuteAsync());
}