angular-google-chart/src/agcOnSelect.js

Google Chart Tools AngularJS Directive Module

/* global angular */
(function(){
    angular.module('googlechart')
        .directive('agcOnSelect', onSelectDirective);
        
    function onSelectDirective(){
        return {
            restrict: 'A',
            scope: false,
            require: 'googleChart',
            link: function(scope, element, attrs, googleChartController){
                callback.$inject = ['chartWrapper', 'chart'];
                function callback(chartWrapper, chart){
                    var selectEventRetParams = { selectedItems: chart.getSelection() };
                    // This is for backwards compatibility for people using 'selectedItem' that only wanted the first selection.
                    selectEventRetParams.selectedItem = selectEventRetParams.selectedItems[0];
                    selectEventRetParams.chartWrapper = chartWrapper;
                    selectEventRetParams.chart = chart;
                    scope.$apply(function () {
                        scope.$eval(attrs.agcOnSelect, selectEventRetParams);
                    });
                }
                googleChartController.registerWrapperListener('select', callback, this);
            }
        };
    }
})();