For a partial view I want to do some JavaScript stuff that I usually would do with $(document).ready(function() {...})
, e.g. bind venet listeners to elements. I know that this doesn't work for AngularJS and partial views loaded into the "root" view.
Thus I added a listener to the controller that listens to the $viewContentLoaded
event. The listener's function is invoked, so the event is fired but it seems to me as if it is before the partial view is rendered. Neither do I see the elements when I set a breakpoint in the listener's function and debug it with firebug, nor does the jquery selection within the function find the partial view's elements.
This is what the controller looks like:
angular.module('docinvoiceClientAngularjsApp')
.controller('LoginController', function ($scope, $rootScope) {
$scope.$on('$viewContentLoaded', function(event) {
console.log("content loaded");
console.log($("#loginForm")); // breakpoint here
});
[...]
I guess that I am doing something wrong as there had to be more posts on stackoverflow if this is a common bug.
As I am using ui-router and ui-view, I will give you an excerpt of the routing file:
angular
.module('docinvoiceClientAngularjsApp', [
'ui.router',
'ngAnimate',
'ngCookies',
'ngResource',
'ngMessages',
'ngRoute',
'ngSanitize',
'ngTouch'
])
.config(function ($routeProvider, $stateProvider) {
$stateProvider
.state('login', {
url: '/',
templateUrl: 'components/login/loginView.html',
controller: 'LoginController'
})
.run(['$state', function ($state) {
$state.transitionTo('login');
}])
[...]
Any help is appreciated. Thanks and kind regards
UPDATE 1: I stripped the error down to the following usecase: The loginView.html looks like the following:
<div id="loginContainer" style="width: 300px">
<form id="loginForm" ng-submit="login(credentials)" ng-if="session.token == undefined">
[...]
As soon as I remove the ng-if
from the div tag, it works as expected. The event is triggered after the DOM is rendered, thus jQuery finds the element. If the ng-if
is attached to the div tag, the behaviour is as first described.
UPDATE 2: As promised I added a working demo that shows the different behaviour when adding a ng-if
directive. Can anyone point me the right direction? Don't stick to the login form as such, as there are many more use cases where I want to remove certain parts of a view based on some expression and do some JavaScript stuff after the partial view is ready.
You can find the working demo here: Demo
This is related to angular digest cycle, it's about how angular works underneath the hood, data binding etc. There are great tutorials explaining this.
To solve your problem, use $timeout, it will make the code execute on the next cycle, whem the ng-if was already parsed:
app.controller('LoginController', function ($scope, $timeout) {
$scope.$on('$viewContentLoaded', function(event) {
$timeout(function() {
$scope.formData.value = document.getElementById("loginForm").id;
},0);
});
});
Fixed demo here: http://codepen.io/anon/pen/JoYPdv
But I strongly advise you to use directives do any DOM manipulation, the controller isn't for that. Here is a example of how do this: Easy dom manipulation in AngularJS - click a button, then set focus to an input element