AngularJS browser autofill workaround by using a d

Question

When submitting a form in AngularJS and use the browser remember password functionality, and in a subsequent login attempt you let the browser fill in the login form with the username and password, the $scope model won't be changed based on the autofill.

The only dirty hack I found is to use the following directive:

app.directive("xsInputSync", ["$timeout" , function($timeout) {
    return {
        restrict : "A",
        require: "?ngModel",
        link : function(scope, element, attrs, ngModel) {
            $timeout(function() {
                if (ngModel.$viewValue && ngModel.$viewValue !== element.val()) {
                    scope.apply(function() {
                        ngModel.$setViewValue(element.val());
                    });
                }
                console.log(scope);
                console.log(ngModel.$name);
                console.log(scope[ngModel.$name]);
            }, 3000);
        }
    };
}]);

The problem is that the ngModel.$setViewValue(element.val()); doesn't change the model nor the view based on the element.val() returned value. How can I accomplish that?

Answer 1

This is the only solution I've found that allowed all of my Angular' validations to work as designed including disable/enable of submit button. Installs with bower and 1 script tag. Bazinga!

https://github.com/tbosch/autofill-event

Answer 2

A minor modification to this answer (https://stackoverflow.com/a/14966711/3443828): use an $interval instead of a $timeout so you don't have to race the browser.

mod.directive('autoFillSync', function($interval) {
    function link(scope, element, attrs, ngModel) {
        var origVal = element.val();
        var refresh = $interval(function() {
          if (!ngModel.$pristine) {
            $interval.cancel(refresh);
          }else{
            var newVal = element.val();
            if (origVal !== newVal) {
              ngModel.$setViewValue(newVal);
              $interval.cancel(refresh);
            }
          }
        }, 100);
    }

    return {
      require: 'ngModel',
      link: link
    }
  });

Answer 3

Solution without directives:

.run(["$window", "$rootElement", "$timeout", function($window, $rootElement, $timeout){

        var event =$window.document.createEvent("HTMLEvents");
        event.initEvent("change", true, true);

        $timeout(function(){

            Array.apply(null, $rootElement.find("input")).forEach(function(item){
                if (item.value.length) {
                    item.$$currentValue = item.value;
                    item.dispatchEvent(event);
                }
            });

        }, 500);
    }])

Answer 4

Solution 1 [Using $timeout]:

Directive:

app.directive('autoFillSync', function($timeout) {
    return {
      require: 'ngModel',
      link: function(scope, elem, attrs, model) {
          var origVal = elem.val();
          $timeout(function () {
              var newVal = elem.val();
              if(model.$pristine && origVal !== newVal) {
                  model.$setViewValue(newVal);
              }
          }, 500);
      }
    };
});

HTML:

<form name="myForm" ng-submit="login()">
  <label for="username">Username</label>
  <input type="text" id="username" name="username" ng-model="username" auto-fill-sync/><br/>
  <label for="password">Password</label>
  <input type="password" id="password" name="password" ng-model="password" auto-fill-sync/><br/>
  <button type="submit">Login</button>
</form>

Solution 2 [Using angular events]:

Ref: Becko's answer

Directive:

app.directive("autofill", function () {
    return {
        require: "ngModel",
        link: function (scope, element, attrs, ngModel) {
            scope.$on("autofill:update", function() {
                ngModel.$setViewValue(element.val());
            });
        }
    };
});

HTML:

<form name="myForm" ng-submit="login()">
  <label for="username">Username</label>
  <input type="text" id="username" name="username" ng-model="username" autofill/><br/>
  <label for="password">Password</label>
  <input type="password" id="password" name="password" ng-model="password" autofill/><br/>
  <button type="submit">Login</button>
</form>

Solution 3 [Using relay method calls]:

Directive:

app.directive('autoFill', function() {
    return {
        restrict: 'A',
        link: function(scope,element) {
            scope.submit = function(){
                scope.username = element.find("#username").val();
                scope.password = element.find("#password").val();
                scope.login();//call a login method in your controller or write the code here itself
            }

        }
    };
});

HTML:

<form name="myForm" auto-fill ng-submit="submit()">
   <label for="username">Username</label>
   <input type="text" id="username" name="username" ng-model="username" />
   <label for="password">Password</label>
   <input type="password" id="password" name="password" ng-model="password" />
   <button type="submit">Login</button>
</form>

Answer 5

Here's another workaround that's less hacky, but requires some extra code in the controller.

HTML:

<form ng-submit="submitForm()" ng-controller="FormController">
    <input type="text" ng-model="username" autocomplete-username>
    <input type="submit">
</form>

Directive (CoffeeScript):

directives.directive 'autocompleteUsername', ->
    return (scope, element) ->
        scope.getUsername = ->
            element.val()

Controller:

controllers.controller 'FormController', [->
    $scope.submitForm = ->
        username = $scope.getUsername?() ? $scope.username
        # HTTP stuff...
]