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

-

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


Comments

Post a Comment

Popular posts from this blog

mysql - FireDac error 314 - but DLLs are in program directory -

-
i getting when trying access mysql database : [firedac][phys][mysql]-314. cannot load vendor library [libmysql.dll or libmysqlld.dll] this did not happen (unchanged) code, however, have upgraded windows 10 , had reinstall delphi xe8, system configuration matter. in order try solve problem, copied both of files c:\windows\sysytem32. when did not seem work, copied them \win32\debug, generated .exe resides. i imagine doing rather stupid, can't see what. the proper solution place driver file (eg., libmysql.dll ) in application's folder, or place installation location in fddrivers.ini file: [mysql] vendor=<folder>\libmysql.dll (recent versions of documentation seem use vendorlib instead of vendor in ini file.) see rad studio documentation topics configuring drivers (firedac) , connect mysql server (firedac) more information.
Read more

git - How to list all releases of public repository with GitHub API V3 -

-
so per documentation https://developer.github.com/v3/repos/releases/#list-releases-for-a-repository get /repos/:owner/:repo/releases should list relases , https://api.github.com/repos/jquery/jquery/releases should list releases in jquery project , not , why ? because repository doesn't have releases. has tags github presenting in releases page. for more clear example, see: https://github.com/hashicorp/terraform/releases which has both releases , tags showing on page, api shows releases: https://api.github.com/repos/hashicorp/terraform/releases
Read more

c++ - Getting C2512 "no default constructor" for `ClassA` error on the first parentheses of constructor for `ClassB`? -

-
my situation follows. let there header file classdeclarations.h , have following classes declared: class classa; class classb; class classa { public: classa(int x); classa(double y); int returninteger(void) { return m_x; } double returndouble(void) { return m_y; } private: int m_x; double m_y; } class classb { public: classb(int x); int returninteger(void) { return m_x; } private: int m_x; classa m_instancea_1; } let there *.cpp file called classdefns.cpp , define methods of classes declared in classdeclarations.h : #include classdeclarations.h classa::classa(int x) : m_x(x) { } classa::classa(double y) : m_y(y) { } classb::classb(int x) : m_x(x) { // line build error occurs m_instancea_1 = classa(0); } note have commented line compiler says there error: error c2512: 'classa' : no appropriate default constructor avai...
Read more