EGLFS QPA plugin missing implementation for drag which causes segfault

EGLFS (so as minimalegl,directfb,linuxfb) is missing the implementation of drag feature and by default

QPlatformDrag *QPlatformIntegration::drag() const

so QGuiApplicationPrivate::platformIntegration()>drag() is 0 and it is causing crash in QDropEvent::QDropEvent() function default_action = QGuiApplicationPrivate::platformIntegration()>drag()->defaultAction(act, modifiers);

Solution proposals:
1., Implementing drag function to eglfs (and all the other plugins) using QSimpleDrag and add null pointer checking to QDropEvent::QDropEvent() and maybe to some other places wherever it is used.

QPlatformDrag *QEglFSIntegration::drag() const
{
static QSimpleDrag *drag = 0;
if (!drag)

return drag;
}

Works for me.

2., Move QSimpleDrag and QBaseDrag to QtGui from QtPlatformSupport module and QPlatformIntegration::drag() would return it by default.