Does someone have a weakaura for shield absorb tracking?

I want to see how much my shield can absorb. I also want to see how much is left on the tank. Is there something that can tell me the exact amount of damage my shield has left to absorb? Thanks!

There are addons that allow you to see the absorption amount when cast on yourself, but unfortunately the wotlk client does not have the API for collecting that data from other players. Thus, such a thing is difficult to the point that it's only really done through combat logs.