Queue Proxy

queue-proxy.js

function makeQueueProxy(name){
    if (window[name] === undefined) {
        var queue = [];

        // When function is called, add to queue
        function proxy() {
            queue.push([this, Array.prototype.slice.apply(arguments)]);
        }
        window[name] = proxy;

        (function check() {
            // Check if function has been defined
            if (window[name] === proxy) {
                // Wait and try again
                setTimeout(check, 50);
            } else {
                // Replay all calls added to the queue
                while (queue.length) {
                    Function.prototype.apply.apply(window[name], queue.shift());
                }
            }
        })();
    }
}