Is there a way to make input work with catchevent?

[aallfik11]

I've got this piece of code:

        static std::regex pattern("^(?!autosave$)[a-zA-Z0-9]+$");

        bool        invalid_filename = false;
        bool        quit             = false;
        std::string filename{};
        std::string message         = "Input a Savefile Name";
        std::string invalid_message = "File Name not Allowed";

        using namespace ftxui;

        auto normal_color  = Color::White;
        auto invalid_color = Color::Red;

        auto input = Container::Vertical({Input(filename, "Savefile Name")});
        auto flexbox_config = FlexboxConfig();
        flexbox_config.Set(FlexboxConfig::JustifyContent::SpaceEvenly);
        auto controls =
            flexbox(
                {
                    text("ESC - Cancel Savefile Creation") | borderRounded,
                    text("ENTER - Confirm Save") | borderRounded,
                },
                flexbox_config) |
            hcenter;

        auto renderer = ftxui::Renderer(
            [&]
            {
                Color       text_color     = normal_color;
                std::string window_message = message;
                if (invalid_filename)
                {
                    text_color     = invalid_color;
                    window_message = invalid_message;
                }
                input->TakeFocus();
                return vbox({window(text(message) | color(text_color),
                                    hbox({input->Render()})) |
                                 center | flex_grow,
                             controls});
            });

        auto input_handler =
            CatchEvent(renderer,
                       [&](Event event)
                       {
                           if (event == Event::Return)
                           {
                               if (std::regex_match(filename, pattern))
                               {
                                   quit = true;
                                   scr_.Exit();
                               }
                               else
                               {
                                   invalid_filename = true;
                               }
                               return true;
                           }
                           if (event == Event::Escape)
                           {
                               quit = true;
                               filename.clear();
                               scr_.Exit();
                               return true;
                           }
                           input->TakeFocus();
                           return renderer->OnEvent(event);
                       });

        auto loop = Loop(&scr_, input_handler);
        while (quit != true)
        {
            loop.RunOnce();
        }

I can't seem to get the "input" part to actually take any user input from the keyboard when I want to input a filename. Is what I'm trying to do not possible, or am I just not knowledgable enough?

[aallfik11]

OK, It's always embarrassing when I ask a question and minutes later, I find the answer.
In case someone ever finds themselves in the same situation, change this:

return renderer->OnEvent(event);

to this:

return input->OnEvent(event);

Sorry for making an unnecessary discussion :(