My frameless glass has no latch and stays closed til opened...I do not think latches are needed.

Then, I would need a stop so that the door only swings one way.

The plastic seal prevents that on mine.

Why do you need it to only swing one way? Mine goes both ways. There is no latch, but I have a handle.

A properly installed glass door will stop and stay with ease. The inward swing is to drip dry youre glass into the shower in most cases..

If you wanna go commando on youre own DIY project you can find adjustable stop wall mount hinges here

The latch?? now thats a custom detail !!!

This is all very helpful--thanks!