door catch การใช้

A vitrine by the door catches her eye.
What is the name ( in the UK please, if it's not universal ) for a door catch for wardrobe doors, that's invisible from the outside?
She enters once while the building is empty, but a dog at the door catches her attention, and she finds herself outside, surrounded by dogs, giving form to a metaphor Dr . Adams made during the counseling session, that she would have to choose either to be in the church with her family, or " outside with the dogs ".