Question

The issue is I have a link Onclick of that user will get a pop-up displaying some image and a text area saying enter your name .

something like what FaceBook provides, for example see this Demo.

I want this functionality.

If user has entered some thing inside that text he should not be able to close that pop preview using escape.

If he has not entered anything or he is not focusing on that text area then he should be able to close that pop-up preview.

Answer 1

Try this code in the pop-up window.

       $(document).bind("keyup", function (e) {
            if (!$('textarea').val() && e.keyCode === 27) {
                window.close();
            }
        });