(function () {
    if (window.domain != null)
        return;

    var domain = {};

    var cbcount = 0;
    var catchFunction = {};
    var regFunction = {};
    domain.register = function (functionName, func) {
        regFunction[functionName] = func;
    };
    domain._receiver = function (evt) {
        var callFunction = domain.toJSON(evt.data);
        if (!callFunction) {
            return;
        }
        var functionName = callFunction.functionName;
        var args = callFunction.args;
        var ret = {};
        if (catchFunction[functionName]) {
            ret = catchFunction[functionName].apply(window, args);
        } else if (regFunction[functionName] != null) {
            ret = regFunction[functionName].apply(window, args);
        } else if(typeof callFunction === "function"){
            callFunction();
        } else {
            //if(window.console)
            //	window.console.log("函数"+functionName+"没有注册");
        }
        if (callFunction.callback != null) {
            domain.call(evt.source, callFunction.callback, [ret]);
        }
    };

    domain._autoResize = function () {
        var parentId = domain.getParam(window.location.href, 'LUIID');
        if (parentId && parentId != "" && !domain.S_AUTORESIZESIGN) {
            domain.autoResize();
        }
    };

    if (window.addEventListener) {
        window.addEventListener('message', domain._receiver, false);
        window.addEventListener('load', domain._autoResize, false);
    } else if (window.attachEvent) {
        window.attachEvent('onmessage', domain._receiver);
        window.attachEvent('onload', domain._autoResize);
    }

    domain.call = function (win, fn, val, cb) {
        var callFunction = {};
        callFunction.functionName = fn;
        callFunction.args = val;
        if (cb != null) {
            callFunction.callback = "__$cb$__" + (cbcount++);
            catchFunction[callFunction.callback] = (cb);
        }
        callFunction = domain.stringify(callFunction);
        if (win && window != win) {
            if (win.postMessage)
                win.postMessage(callFunction, '*');
            return;
        }
    };
    domain.toJSON = function (str) {
        if (typeof (str) !== 'string') {
            return str;
        }
        try {
            return (new Function("return (" + str + ");"))();
        } catch (e) {
            if (window.console) {
                console.log(e);
            }
            return "";
        }

    };
    domain.getParam = function (url, param) {
        var re = new RegExp();
        re.compile("[\\?&]" + param + "=([^&#]*)", "i");
        var arr = re.exec(url);
        if (arr == null)
            return null;
        else
            return decodeURIComponent(arr[1]);
    };
    domain.getBodySize = function () {
        var h = document.documentElement.scrollHeight ||
            document.documentElement.offsetHeight || window.outerHeight;
        var w = document.documentElement.scrollWidth ||
            document.documentElement.offsetWidth || window.outerWidth;
        return {"width": w, "height": h};
    };

    var bodySizeCache = {};
    domain.autoResize = function () {
        domain.resize();
        // 对于低版本浏览器采用setTimeout形式轮询，高版本浏览器采用MutationObserver监听节点变化来resize高度
        if (typeof (MutationObserver) !== 'undefined') {
            var observer = new MutationObserver(function () {
                domain.resize();
            });
            observer.observe(document, {attributes: true, subtree: true});
        } else {
            window.setTimeout(domain.autoResize, 300);
        }
        domain.S_AUTORESIZESIGN = true;
    };
    domain.resize = function (luiid) {
        var size = domain.getBodySize();
        if (size.width === bodySizeCache.width && size.height === bodySizeCache.height) {
            return;
        }
        bodySizeCache = size;
        domain.call(parent, "fireEvent", [{
            type: "event",
            target: (luiid == null ? domain.getParam(window.location.href, 'LUIID') : luiid),
            name: "resize",
            data: {
                height: size.height,
                width: size.width
            }
        }]);
    };
    ////////////////////////////
    //以下内容来源与www.json.org
    ////////////////////////////


    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 = {    // table of character substitutions
            '\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,          // The loop counter.
            k,          // The member key.
            v,          // The member value.
            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) {
                        if (typeof rep[i] === 'string') {
                            k = rep[i];
                            v = str(k, value);
                            if (v) {
                                partial.push(quote(k) + (gap ? ': ' : ':') + v);
                            }
                        }
                    }
                } else {
                    for (k in value) {
                        if (Object.prototype.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;
        }
    }

    domain.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});
    };

    function registHotspot() {
        if (document.addEventListener)
            document.addEventListener('click', hotspotClick, false);
        else if (document.attachEvent)
            document.attachEvent('onclick', hotspotClick);
    }

    function hotspotClick(e) {
        var event = e || window.event;
        if (event) {
            domain.call(parent, 'hotspotClick', [window.location.href, event.clientX, event.clientY]);
        }
    }

    registHotspot();
    /**
     if (typeof define === "function" && define.cmd){
		 define(function(require, exports, module) {
			 window.domian = module.exports = domain;
		 });
	 }else{
		 window.domain = domain;
	 }
     **/
    window.domain = domain;
})();