angular-segmentio.js

angular.module('segmentio', ['ng'])
    .factory('segmentio', ['$rootScope', '$window', '$location', '$log',
        function($rootScope, $window, $location, $log) {
            var service = {};

            $window.analytics = $window.analytics || [];

            // Define a factory that generates wrapper methods to push arrays of
            // arguments onto our `analytics` queue, where the first element of the arrays
            // is always the name of the analytics.js method itself (eg. `track`).
            var methodFactory = function(method) {
                return function() {
                    var args = Array.prototype.slice.call(arguments);
                    args.unshift(method);
                    $window.analytics.push(args);
                    return $window.analytics;
                };
            };

            // Loop through analytics.js' methods and generate a wrapper method for each.
            var methods = ['identify', 'group', 'track', 'page', 'pageview', 'alias',
                'ready', 'on', 'once', 'off', 'trackLink', 'trackForm', 'trackClick',
                'trackSubmit'
            ];
            for (var i = 0; i < methods.length; i++) {
                service[methods[i]] = methodFactory(methods[i]);
            }

            /**
             * @description
             * Load Segment.io analytics script
             * @param apiKey The key API to use
             */
            service.load = function(key) {
                if (document.getElementById('analytics-js')) return;

                // Create an async script element based on your key.
                var script = document.createElement('script');
                script.type = 'text/javascript';
                script.id = 'analytics-js';
                script.async = true;
                script.src = ('https:' === document.location.protocol
                  ? 'https://' : 'http://')
                  + 'cdn.segment.io/analytics.js/v1/'
                  + key + '/analytics.min.js';

                // Insert our script next to the first script element.
                var first = document.getElementsByTagName('script')[0];
                first.parentNode.insertBefore(script, first);
            };

            // Add a version to keep track of what's in the wild.
            $window.analytics.SNIPPET_VERSION = '1.3.29';

            // Listening to $viewContentLoaded event to track pageview
            $rootScope.$on('$viewContentLoaded', function() {
                if (service.location != $location.path()) {
                    service.location = $location.path();
                    service.page(service.location);
                }
            });

            return service;
        }
    ]);