javascript - angularjs watch for change in scope variable made from another controller -

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i have following service

function pathfactory() {     this.path = null;     this.setpath = function(path) {         this.path = path;     }     return this; }

my navigation controller: 

function navcontroller($scope, pathfactory) {      list = document.getelementsbytagname("ul");     list = list[0];      var items = list.getelementsbytagname("li");     for(var = 0 ; < items.length ; i++) {         items[i].setattribute("navindex", i);         items[i].addeventlistener("click", navclick);     }      function navclick(e) {         switch(e.path[1].hash) {             case "#home":                 pathfactory.setpath("home");                 break;             case "#bots":                 pathfactory.setpath("bots");                 break;             case "#servers":                 pathfactory.setpath("servers");                 break;             case "#status":                 pathfactory.setpath("status");                 break;         }     } }

and content controller:

function contentcontroller($scope, pathfactory) {      $scope.$watch(function() {         return pathfactory.path;     }, function (newvalue) {         alert("changed value");     });  }

the $scope.$watch isn't running function should value of pathfactory.path changed navigation controller, way can setup working?

cheers guys.

if want angularjs calls $watch() method, have call $apply() method manualy.

angulars two-way-databinding works, because changes in $scope calls $apply method. way angular knows has changed.

try put line of code $scope.$apply(); @ end of navclick function.

but should use directive event listeners and/or dom-manipulation


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