unserver-unify/src/app/setting/signup_teacher.controller.js

'use strict';
angular.module('bamboo.setting').controller('TeacherSignupCtrl', function($scope,$rootScope, fullWidthService) {
    $rootScope.fullwidthflag = true;
    $scope.$on("$destroy", function() {
        console.log('-- destroy --');
        fullWidthService.listen();
    });
});