Matomo KSS plugin

/*******************************************************************************************
 * KSS Matomo Plugin
 ******************************************************************************************/

var _paq = window._paq || [];
_paq.push([function() {
    kss.matomo = this;
}]);

kss.registerActionProvider('matomoPush', function(node, params) {
    var data = [params.func];
    var args = params.args;
    if (args) {
        if (typeof args == 'string') {
            args = args.split(/\s+/);
        }
        data = data.concat(args);
    }
    _paq.push(data);
});

kss.registerActionProvider('matomoCall', function(node, params) {
    var args = params.args;
    if (typeof args == 'string') {
        args = args.split(/\s+/);
    }
    if (!kss.matomo) {
        throw new Error('Matomo not (yet?) loaded');
    }
    kss.matomo[params.func].apply(kss.matomo, args);
});

kss.registerParameterProvider('matomoCall', function(node, func, args) {
    if (!kss.matomo) {
        throw new Error('Matomo not (yet?) loaded');
    }
    return kss.matomo[func].apply(kss.matomo, args);
});

kss.registerParameterProvider('matomoIsLoaded', function(node) {
    return !!kss.matomo;
});