copy after http request?

[ghost]

It this somehow possible?
I am trying to get it working to copy data that I get after http success request. I get some text but it only does the copy if I click twice. First time it leaves the old value.
I basically process set some text, process the value in PHP which returns a new value which I want to copy to clipboard. But it always doesn't pick up the first time. Is there a way to make it wait until $scope is ready. Tried various timeout, scope.apply methods but couldn't get it to work.

    $scope.getTextToCopy = function() {
        return $scope.rez;
    };

    $scope.copyCode = function(show_id) {
      var textToCopy = "12345"
        $http({
            headers: {
              'Content-Type': 'application/x-www-form-urlencoded'
            },
            url: 'snippets/scripts/iframeObfuscate.php',
            method: "POST",
            data: $.param({
                "param": textToCopy
            })
        }).success(function(data) {
            $scope.rez = data;
        });
    };

Any advice is appreciated :)

p.s best bet is to invoke a method to copy in js file and not use the
data-clip-copy="getTextToCopy()" in html. I think that would solve the issue ?