javascript - Angular + UI Router, changing title on $stateChangeSuccess (event fires too early?) -


i implemented custom page title according ngboilerplate:

https://github.com/ngbp/ngbp/blob/v0.3.1-release/src/app/app.js

.controller( 'appctrl', function appctrl ( $scope, $location ) {   $scope.$on('$statechangesuccess', function(event, tostate, toparams, fromstate, fromparams){     if ( angular.isdefined( tostate.data.pagetitle ) ) {       $scope.pagetitle = tostate.data.pagetitle + ' | ngboilerplate' ;     }   }); })

so basically, title changes on each $statechangesuccess event. problem is, in browser history, saves new title title of last page. instance if @ page title "home" , navigate page title "about", history show "about" last item, navigate correctly "home" when click on it. fear confuse people.

so came "hack", seems solve problem:

.controller( 'appctrl', function appctrl ( $scope, $location ) {   var nexttitle = "";    $scope.$on('$locationchangesuccess', function (event, newurl, oldurl) {     $scope.pagetitle = nexttitle;   });    $scope.$on('$statechangesuccess', function(event, tostate, toparams, fromstate, fromparams){     if ( angular.isdefined( tostate.data.pagetitle ) ) {       nexttitle = tostate.data.pagetitle + ' | ngboilerplate' ;     }   }); })

so now, title save in variable first , assigned scope on $locationchangesuccess. seems work, don't know how reliable is.

so question is, guess, how correctly. how reliable changing page title, gets it's data current state?

and furthermore out of interest: why doesn't work $statechangesuccess? there reason why event fires early?

see this answer more generic question of setting page title in ui-router. workaround use $timeout service run title update asynchronously. function run after current script finishes.

$rootscope.$on("$statechangesuccess", function (event, tostate) {   $timeout(function () {     // needed ensure title changed *after* url change     // ensures history entries correct.     $window.document.title = tostate.name;    });

});


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