Enhance Apple iTunes App Store: Forces iTunes detection in Opera. Autolaunches the app in iTunes from Opera.

Enhance Apple iTunes App Store 1.01.js

// ==UserScript==
// @name Enhance Apple iTunes App Store
// @version 1.01
// @description Forces iTunes detection in Opera. Autolaunches the app in iTunes from Opera.
// @author XP1 (https://github.com/XP1/)
// @namespace https://gist.github.com/1578081/
// @include http*://itunes.apple.com/*
// @include http*://*.itunes.apple.com/*
// ==/UserScript==

// http://r.mzstatic.com/htmlResources/B435/web-storefront-preview.jsz

/*jslint browser: true, vars: true, white: true, maxerr: 50, indent: 4 */
(function (console, window)
{
    "use strict";

    var userScript = {
        name: "Enhance Apple iTunes App Store"
    };

    function removeEventListenerAfterFiring(numberOfTimes, callback)
    {
        var remaining = numberOfTimes;
        return function listener(event)
        {
            remaining -= 1;

            if (remaining <= 0)
            {
                var target = event.target;
                var type = event.type;
                target.removeEventListener(type, listener, false);
                target.removeEventListener(type, listener, true);
            }

            callback();
        };
    }

    var handleException = function handleException(theFunction)
    {
        try
        {
            theFunction();
        }
        catch (exception)
        {
            console.error("[" + userScript.name + "]: Exception: " + exception + "\n\nStack:\n" + exception.stack + "\n\nStacktrace:\n" + exception.stacktrace);
        }
    };

    function overrideSettings()
    {
        function enable()
        {
            return true;
        }

        var detect = window.its.detect;
        detect.itunesDetected = enable;
        detect.shouldAutolaunch = enable;
    }

    function initialize()
    {
        var functions = [overrideSettings];

        var i = null;
        var length = functions.length;
        for (i = 0; i < length; i += 1)
        {
            handleException(functions[i]);
        }
    }

    window.addEventListener("DOMContentLoaded", removeEventListenerAfterFiring(1, initialize), false);
}(this.console, this));