groovy - run console inside of some context (embedding groovy's gui console)

gistfile1.groovy

def c = new groovy.ui.Console(getClass().getClassLoader(), new Binding())
c.setVariable("ctx",this)
c.run()
    
def done = false
    
c.frame.windowClosing = {done = true}
c.frame.windowClosed = {done = true}
while (!done) {
   sleep(1000)
}