I’ve never tried it myself but I think Airnav (up to V3) runs using Java.
Airnav X appears to be internet based and seems to use a different system, it might work straight “out of the box” on a Mac.
Up till recently Airbus gave the option of all technical documentation as pdf if you wanted, these of course run on a Mac no problem, however with the release of Airnav X this has now stopped.
Sorry I can’t be of more help, if you do find a solution please let us know, as a Mac user I’d be interested.
Kind Regards