void Readline::EventHook ( bool  newline = false )

protectedvirtual

The default is to redisplay the prompt which is gotten from GetUpdatePrompt(). If GetUpdatePrompt() returns an empty string the prompt is kept untouched. This can be used to keep a prompt updated with some information (e.g. time) just by overwriting GetUpdatePrompt()

Reimplemented in RemoteControl< Console >, RemoteControl< ConsoleStream >, RemoteControl< Shell >, Console, and ReadlineWindow.

Definition at line 315 of file Readline.cc.

References fExternalInput, GetUpdatePrompt(), and UpdatePrompt().

Referenced by ReadlineWindow::EventHook(), Console::EventHook(), Console::GetStreamIn(), and rl_ncurses_event_hook().

{
    const string cpy = fExternalInput;
    fExternalInput = "";

    if (!cpy.empty())
    {
        rl_replace_line(cpy.c_str(), 1);
        rl_done = 1;
    }

    string p = GetUpdatePrompt();
    if (p.empty())
        p = rl_prompt;

    if (newline)
        rl_on_new_line();

    if (rl_prompt==p && !newline)
        return;

    UpdatePrompt(p);

    int w, h;
    rl_get_screen_size(&h, &w);
    cout << '\r' << string(w+1, ' ') << '\r';
    rl_forced_update_display();
}

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