find which link caused route to change

The application uses angularjs. I have a navigation bar which opens pages and also another UI which also opens the same pages(same links).

I am using $locationChangeStart to toggle open the sub-menu in the navbar when I open a page from the other UI.

When I open the same page from the from the navigation bar, the toggle happens and the sub-menu of navbar closes.

$rootScope.$on("$locationChangeStart", function(event, next, current) { 

  $rootScope.hashUrl = next.split('#').pop();
  $rootScope.hashUrl = '#' + $rootScope.hashUrl;
  console.log($rootScope.hashUrl, "URL");   //#!/addflats
  $rootScope.addActiveToSidebarElement(event, next, current);

});

The function the locationChangeStart calls:

$rootScope.addActiveToSidebarElement = function(event, next, current) {
  $rootScope.anchorElement = $("a[href='" + $rootScope.hashUrl + "']");
  if (parentLi.hasClass('associationChildLi')) {
    $rootScope.anchorElement.addClass('selectedSideBarChildActive');
    $('.associationUl').slideToggle();
  }
}

Both links(from navigation bar and other UI) cause the route change. How do I find which link caused the route to change?

from find which link caused route to change