/**
 * Magento Enterprise Edition
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Magento Enterprise Edition License
 * that is bundled with this package in the file LICENSE_EE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://www.magentocommerce.com/license/enterprise-edition
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    design
 * @package     enterprise_connect
 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://www.magentocommerce.com/license/enterprise-edition
 */

var CrossMessage = {
    intervalId: null,
    lastHash: null,
    hash: null,
    randomLength: 32,

    postMessage: function (message, targetUrl, target) {
        if (!targetUrl) {
            return;
        }
        this.target = target ? target : parent;
        if ('postMessage' in window) {
            this.target.postMessage(JSON.stringify(message), '*');
        } else {
            //Change location with additional random string
            this.target.location = targetUrl.replace(/#.*$/, '') + '#' + this._random()
                + encodeURIComponent(JSON.stringify(message));
        }
    },

    receiveMessage: function(callback) {
        if ('postMessage' in window) {
            if (!window.messageEventAdded) {
                if (window.addEventListener) {
                    this.timoutlId && clearTimeout(this.timoutlId);
                    this.timoutlId = null;

                    // timeout added only because of ie9 call event twice
                    this.timoutlId = setTimeout(function() {
                        window.addEventListener('message', callback, false);
                    }, 1000);
                } else if (window.attachEvent) {
                    window.attachEvent('onmessage', callback);
                }
                window.messageEventAdded = true;
            } else {
                if (window.removeEventListener) {
                    window.removeEventListener('message', callback, false);
                } else if (window.detachEvent) {
                    window.detachEvent('onmessage', callback)
                }
            }
        } else {
            this.intervalId && clearInterval(this.intervalId);
            this.intervalId = null;
            if (typeof callback == 'function') {
                this.intervalId = setInterval(function() {
                    var message = decodeURIComponent(document.location.hash.substr(this.randomLength + 1));
                    this.hash = document.location.hash.substr(1, this.randomLength);
                    if (this.hash != this.lastHash) {
                        this.lastHash = this.hash;
                        callback({data: message});
                    }
                }.bind(this), 100);
            }
        }
    },

    /**
     * Get random string
     */
    _random: function() {
        var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');
        var r = [];
        for (var i = 0; i < this.randomLength; i++) {
            r[i] = chars[0 | Math.random() * 32];
        };
        return r.join("");
    }
};

if (!("JSON" in window && window.JSON)) {
    JSON = {}
}(function () {
    function f(n) {
        return n < 10 ? "0" + n : n
    }
    if (typeof Date.prototype.toJSON !== "function") {
        Date.prototype.toJSON = function (key) {
            return this.getUTCFullYear() + "-" + f(this.getUTCMonth() + 1) + "-" + f(this.getUTCDate()) + "T" + f(this.getUTCHours()) + ":" + f(this.getUTCMinutes()) + ":" + f(this.getUTCSeconds()) + "Z"
        };
        String.prototype.toJSON = Number.prototype.toJSON = Boolean.prototype.toJSON = function (key) {
            return this.valueOf()
        }
    }
    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        gap, indent, meta = {
            "\b": "\\b",
            "\t": "\\t",
            "\n": "\\n",
            "\f": "\\f",
            "\r": "\\r",
            '"': '\\"',
            "\\": "\\\\"
        },
        rep;

    function quote(string) {
        escapable.lastIndex = 0;
        return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
            var c = meta[a];
            return typeof c === "string" ? c : "\\u" + ("0000" + a.charCodeAt(0).toString(16)).slice(-4)
        }) + '"' : '"' + string + '"'
    }
    function str(key, holder) {
        var i, k, v, length, mind = gap,
            partial, value = holder[key];
        if (value && typeof value === "object" && typeof value.toJSON === "function") {
            value = value.toJSON(key)
        }
        if (typeof rep === "function") {
            value = rep.call(holder, key, value)
        }
        switch (typeof value) {
        case "string":
            return quote(value);
        case "number":
            return isFinite(value) ? String(value) : "null";
        case "boolean":
        case "null":
            return String(value);
        case "object":
            if (!value) {
                return "null"
            }
            gap += indent;
            partial = [];
            if (Object.prototype.toString.apply(value) === "[object Array]") {
                length = value.length;
                for (i = 0; i < length; i += 1) {
                    partial[i] = str(i, value) || "null"
                }
                v = partial.length === 0 ? "[]" : gap ? "[\n" + gap + partial.join(",\n" + gap) + "\n" + mind + "]" : "[" + partial.join(",") + "]";
                gap = mind;
                return v
            }
            if (rep && typeof rep === "object") {
                length = rep.length;
                for (i = 0; i < length; i += 1) {
                    k = rep[i];
                    if (typeof k === "string") {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ": " : ":") + v)
                        }
                    }
                }
            } else {
                for (k in value) {
                    if (Object.hasOwnProperty.call(value, k)) {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ": " : ":") + v)
                        }
                    }
                }
            }
            v = partial.length === 0 ? "{}" : gap ? "{\n" + gap + partial.join(",\n" + gap) + "\n" + mind + "}" : "{" + partial.join(",") + "}";
            gap = mind;
            return v
        }
    }
    if (typeof JSON.stringify !== "function") {
        JSON.stringify = function (value, replacer, space) {
            var i;
            gap = "";
            indent = "";
            if (typeof space === "number") {
                for (i = 0; i < space; i += 1) {
                    indent += " "
                }
            } else {
                if (typeof space === "string") {
                    indent = space
                }
            }
            rep = replacer;
            if (replacer && typeof replacer !== "function" && (typeof replacer !== "object" || typeof replacer.length !== "number")) {
                throw new Error("JSON.stringify")
            }
            return str("", {
                "": value
            })
        }
    }
    if (typeof JSON.parse !== "function") {
        JSON.parse = function (text, reviver) {
            var j;

            function walk(holder, key) {
                var k, v, value = holder[key];
                if (value && typeof value === "object") {
                    for (k in value) {
                        if (Object.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v
                            } else {
                                delete value[k]
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value)
            }
            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function (a) {
                    return "\\u" + ("0000" + a.charCodeAt(0).toString(16)).slice(-4)
                })
            }
            if (/^[\],:{}\s]*$/.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, "@").replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, "]").replace(/(?:^|:|,)(?:\s*\[)+/g, ""))) {
                try{
                    j = eval("(" + text + ")");
                } catch(e) {
                }
                var ret = null;
                if (typeof reviver == "function") {
                    ret = walk({"" : j}, "");
                } else {
                    ret = j;
                }
                return ret;
            }
            throw new SyntaxError("JSON.parse")
        }
    }
}());