express-yui/lib/patches/client-lazy-use.js

Express extension for YUI Applications

module.exports = function patchClientLazyUse(Y) {
    var use = Y.use,
        pending = [],
        callbacks = [];
    function flush() {
        var p = pending,
            c = callbacks;
        if (p.length) {
            pending = []; callbacks = []; // resetting
            p.push(function () {
                var i;
                for (i = 0; i < c.length; i += 1) {
                    c[i].apply(this, arguments);
                }
            });
            use.apply(Y, p);
        }
    }
    Y.use = function () {
        pending = pending.concat(Array.prototype.slice.call(arguments, 0));
        // The last argument supplied to use can be a load complete callback
        if (Y.Lang.isFunction(pending[pending.length - 1])) {
            callbacks.push(pending.pop());
        }
        setTimeout(flush, 0);
        return Y;
    };
};