Simple wrapper for Google Analytics. Experimental instance pattern.

google-analytics-wrapper.js

function Analytics(config) {
    config = config || {};
    
    var ga = (_gaq || []),
        accountKey,
        domainName,
        proto = (this.prototype = Object.prototype);
        
    proto.accountKey = function() {
        if (!arguments.length) {
            return accountKey;
        }
        else {
            accountKey = arguments[0];
            ga.push(['_setAccount', accountKey]);
            return this;
        }
    };
    
    if (config.accountKey) {
        proto.accountKey(config.accountKey);
    }
    
    proto.domainName = function() {
        if (!arguments.length) {
            return domainName;
        }
        else {
            domainName = arguments[0];
            ga.push(['_setDomainName', domainName]);
            return this;
        }
    };
    
    if (config.domainName) {
        proto.domainName(config.domainName);
    }
    
    proto.trackEvent = function(name, value) {
        ga.push(['_trackEvent', name, value]);
        return this;
    };
    
    proto.trackPageView = function(path) {
        if (typeof path === 'undefined') {
            path = window.location.pathname;
        }
        ga.push(['_trackPageview', path]);
        return this;
    };
}

_gaq = {
    push: function() {
        console.log(JSON.stringify(arguments));
    }
};

var analytics = new Analytics({
    accountKey: 'UA-65432-1'
});

analytics
    .trackPageView()
    .trackPageView('/account/status')
    .trackEvent()
;