angular.module('googlechart.directives', ['ui.event']).directive('googleChart',     ['$timeout', '$window', function ($timeout, $window) {
    return {
        restrict: 'A',
        scope: {
            chart: '=chart'
        },
        link: function ($scope, $elm, $attr) {
            var eventNames="select ready onmouseover animationfinish error onmouseout";

         /* ... Set up the chart and chartwrapper. */

            google.visualization.events.addListener($scope.chartWrapper, 'ready', function () {
                bindChartEvents($scope, eventNames, $scope.chartWrapper.getChart(), $elm);
            });

        }
    };
    function bindChartEvents(scope, eventsStr, chart, element) {
      angular.forEach(eventsStr.split(' '), function (eventName) {
          google.visualization.events.addListener(chart, eventName, function (event) {
              var newEventName = 'chart-' + eventName;
              element.triggerHandler(newEventName, event);
              if (!scope.$$phase){
                  scope.$apply();
              }
          });
      });
  }
}]);

function bindChartEvents(scope) {
   if(typeof $scope.chart.methods !== "undefined" && typeof $scope.chart.methods.select  !== "undefined"){
        $scope.selectListener = google.visualization.events.addListener($scope.chartWrapper, "select", function (event) {
            $scope.chart.methods.select($scope.chartWrapper.getChart().getSelection(), event);
        });
    }
  });