Method ProcessEvent

src/ui/elements/ui_element.cpp:173–275

}

void Element::ProcessEvent(Rml::Event &event) {
    ContextId prev_context = recompui::try_close_current_context();
    ContextId context = ContextId::null();
    Rml::ElementDocument* doc = event.GetTargetElement()->GetOwnerDocument();
    if (doc != nullptr) {
        context = get_context_from_document(doc);
    }

    bool did_open = false;

    // TODO disallow null contexts once the entire UI system has been migrated.
    if (context != ContextId::null()) {
        did_open = context.open_if_not_already();
    }

    // Events that are processed during any phase.
    switch (event.GetId()) {
    case Rml::EventId::Click:
        handle_event(Event::click_event(event.GetParameter("mouse_x", 0.0f), event.GetParameter("mouse_y", 0.0f)));
        break;
    case Rml::EventId::Mousedown:
        {
            MouseButton mouse_button = convert_rml_mouse_button(event.GetParameter("button", 3));
            if (mouse_button != MouseButton::Count) {
                handle_event(Event::mousebutton_event(event.GetParameter("mouse_x", 0.0f), event.GetParameter("mouse_y", 0.0f), mouse_button, true));
            }
        }
        break;
    case Rml::EventId::Mouseup:
        {
            MouseButton mouse_button = convert_rml_mouse_button(event.GetParameter("button", 3));
            if (mouse_button != MouseButton::Count) {
                handle_event(Event::mousebutton_event(event.GetParameter("mouse_x", 0.0f), event.GetParameter("mouse_y", 0.0f), mouse_button, false));
            }
        }
        break;
    case Rml::EventId::Keydown:
        switch ((Rml::Input::KeyIdentifier)event.GetParameter<int>("key_identifier", 0)) {
            case Rml::Input::KeyIdentifier::KI_LEFT:
                handle_event(Event::navigate_event(NavDirection::Left));
                break;
            case Rml::Input::KeyIdentifier::KI_UP:
                handle_event(Event::navigate_event(NavDirection::Up));
                break;
            case Rml::Input::KeyIdentifier::KI_RIGHT:
                handle_event(Event::navigate_event(NavDirection::Right));
                break;
            case Rml::Input::KeyIdentifier::KI_DOWN:
                handle_event(Event::navigate_event(NavDirection::Down));
                break;
        }
        break;
    case Rml::EventId::Drag:
        handle_event(Event::drag_event(event.GetParameter("mouse_x", 0.0f), event.GetParameter("mouse_y", 0.0f), DragPhase::Move));
        break;
    default:
        break;
    }