bide | A simple routing library for ClojureScript | Router library

Let's summarize the two immediate mistakes you made. You had your button handlers call close_window, which called window.quit(). window here is a global that refers to your main window, so closing that window kills the app. You need to close the calling dialog window. Second, quit on the main window quits the app. You need destroy to simply close the window.

But there are bigger issues we cannot solve. Your dialog functions do nothing. Both buttons simply close the dialog window, without saving the selection that the user made, and without returning any result. You still have a lot of code to write, and we haven't written it here.