Special tooltip does not work in menu

[Roy44]

Hi,

I'm trying to display an animated gif as a tooltip, so I've create a widget for that and override
event function.

switch (event->type())
    {
    case QEvent::ToolTip:
    {
        QWidget* pWidget = dynamic_cast<QWidget*>(receiver);
        QAction* pAction = dynamic_cast<QAction*>(receiver);
        QHelpEvent *pHelpEvent = static_cast<QHelpEvent *>(event);
        if((pHelpEvent != nullptr) && ((pWidget != nullptr) || (pAction != nullptr)))
        {
            QString sTooltip;
            if(pWidget)
            {
                sTooltip = pWidget->toolTip();
            }
            else if(pAction)
            {
                sTooltip = pAction->toolTip();
            }

            if(customTooltip(sTooltip, pHelpEvent))
                return true;
        }
    }
        break;

    case QEvent::Leave:
    case QEvent::HoverLeave:
    {
        QWidget* pWidget = dynamic_cast<QWidget*>(receiver);
        QAction* pAction = dynamic_cast<QAction*>(receiver);
        QString sTooltip;
        if(pWidget)
        {
            sTooltip = pWidget->toolTip();
        }
        else if(pAction)
        {
            sTooltip = pAction->toolTip();
        }

        if(sTooltip.startsWith("@"))
        {
            m_tooltip.onStop();
        }
    }
        break;

if the reciever tooltip starts with '@', I display a gif otherwise I display the tooltip as usual.
My problem is:

• For a QAction in toolbar, my special gif widget is displayed instead of classic tooltip but for a QAction in submenu the classic
  tooltip is displayed, I don't know why.

Do you have an idea ?
Thanks (sorry for my english)