Edit: portable keyboard, too.
I blow-dried everything for a few minutes, set to maximum, just in case that's going to be relevant. They've dried, so far, at least the outside.
I was walking outside with my laptop (Compaq 2500), adapter and mouse in a backpack when it rained. I got home as fast as I could but by the time I got there, my backpack was wet and the laptop and everything else inside were moist. I know electronics and water don't go well together, but I have no idea what to do (and I don't know how to get any parts out except the battery).