Method grabKeyboard

src/effect/effecthandler.cpp:433–443

}

bool EffectsHandler::grabKeyboard(Effect *effect)
{
    if (keyboard_grab_effect != nullptr) {
        return false;
    }
    if (!doGrabKeyboard()) {
        return false;
    }
    keyboard_grab_effect = effect;
    return true;
}

bool EffectsHandler::doGrabKeyboard()
{