Method PopPage

engine/Poseidon/UI/Options/OptionsShell.cpp:148–179

    p->OnReshown(*this);
    RefreshTitle();
}

void OptionsShell::PopPage()
{
    if (m_stack.empty())
    {
        BeginCloseAnim(IDC_CANCEL);
        return;
    }
    auto top = std::move(m_stack.back());
    m_stack.pop_back();
    top->Unmount(*this);
    top.reset();

    // PushPage hides the previous page's controls in all cases (modal
    // or not — see comment there).  Symmetric re-show on pop.
    if (auto* now = TopPage())
    {
        ShowPageControls(now, true);
        // Default focus first, OnReshown last — the latter is the place
        // pages override focus to remember per-page state (e.g.
        // FlatMenuPage's last-nav-idc memory).  Without this order the
        // default would trample the remembered focus.
        int focusIdc = now->DefaultFocusIdc();
        if (focusIdc >= 0)
            FocusNotebookCtrl(focusIdc);
        now->OnReshown(*this);
        RefreshTitle();
    }
    else
    {
        BeginCloseAnim(IDC_CANCEL);
    }
}