Javascript – Run jQuery code after AngularJS completes rendering HTML

angularjsjavascriptjquery

In controller I get some JSON data using $http or $resource services. Then I write this data in $scope and AngularJS updates HTML structure of the page. My problem is that I need to know what is the new size (width and height) of the list (I mean, HTML DOM element) that is filled with Angular ng-repeat directive. Consequently, I have to run javascript code right after Angular finishes updating DOM structure. What is the proper way to do it? I have searched internet over the last four hours but I couldn't find any solution to my problem.

This is how I receive JSON data:

var tradesInfo = TradesInfo.get({}, function(data){
    console.log(data);
    $scope.source.profile = data.profile;
            $scope.trades = $scope.source.profile.trades;
        $scope.activetrade = $scope.trades[0];
        $scope.ready = true;


    init();  //I need to call this function after update is complete

});

And this is what happens in init() function:

function init(){
    alert($('#wrapper').width());
    alert($('#wrapper').height());
}

I know that there must be something easy to solve this problem but I can't just find it now.
Thanks in advance.

Best Answer

Actually in this case the angular way is not the easy way but the only right way :)

You have to write a directive and attach to the element you want to know the height of. And from the controller you $broadcast an event, the directive'll catch the event and there you can do the DOM manipulation. NEVER in the controller.

var tradesInfo = TradesInfo.get({}, function(data){
    console.log(data);
    $scope.source.profile = data.profile;
    ...

    $scope.$broadcast('dataloaded');
});


directive('heightStuff', ['$timeout', function ($timeout) {
    return {
        link: function ($scope, element, attrs) {
            $scope.$on('dataloaded', function () {
                $timeout(function () { // You might need this timeout to be sure its run after DOM render.
                    element.width()
                    element.height()
                }, 0, false);
            })
        }
    };
}]);

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