ÿþ/* B


 * AdvancedAJAX 1.1.2

 * (c) 2005-2006 Lukasz Lach

 *  mail: anakin@php5.pl

 *  www:  http://advajax.anakin.us/

 *        http://anakin.us/

 * http://creativecommons.org/licenses/LGPL/2.1/

 *

 */



function advAJAX() {



    var obj = new Object();



    obj.url = window.location.href;

    obj.method = "GET";

    obj.parameters = new Object();

    obj.jsonParameters = new Object();

    obj.headers = new Object();

    obj.async = true;

    obj.mimeType = "text/xml";

    obj.username = null;

    obj.password = null;

    obj.form = null;

    obj.disableForm = true;



    obj.unique = true;

    obj.uniqueParameter = "_uniqid";



    obj.requestDone = false;

    obj.queryString = "";

    obj.responseText = null;

    obj.responseXML = null;

    obj.status = null;

    obj.statusText = null;

    obj.aborted = false;

    obj.timeout = 0;

    obj.retryCount = 0;

    obj.retryDelay = 1000;

    obj.tag = null;

    obj.group = null;

    obj.progressTimerInterval = 50;



    obj.xmlHttpRequest = null;



    obj.onInitialization = null;

    obj.onFinalization = null;

    obj.onReadyStateChange = null;

    obj.onLoading = null;

    obj.onLoaded = null;

    obj.onInteractive = null;

    obj.onComplete = null;

    obj.onProgress = null;

    obj.onSuccess = null;

    obj.onFatalError = null;

    obj.onError = null;

    obj.onTimeout = null;

    obj.onRetryDelay = null;

    obj.onRetry = null;

    obj.onGroupEnter = null;

    obj.onGroupLeave = null;



    obj.createXmlHttpRequest = function() {



        if (typeof XMLHttpRequest != "undefined")

            return new XMLHttpRequest();

        var xhrVersion = [ "MSXML2.XMLHttp.5.0", "MSXML2.XMLHttp.4.0","MSXML2.XMLHttp.3.0",

                "MSXML2.XMLHttp","Microsoft.XMLHttp" ];

        for (var i = 0; i < xhrVersion.length; i++) {

            try {

                var xhrObj = new ActiveXObject(xhrVersion[i]);

                return xhrObj;

            } catch (e) { }

        }

        obj.raiseEvent("FatalError");

        return null;

    };



    obj._oldResponseLength = null;

    obj._progressTimer = null;

    obj._progressStarted = navigator.userAgent.indexOf('Opera') == -1;

    obj._onProgress = function() {



        if (typeof obj.onProgress == "function" &&

            typeof obj.xmlHttpRequest.getResponseHeader == "function") {

            var contentLength = obj.xmlHttpRequest.getResponseHeader("Content-length");

            if (contentLength != null && contentLength != '') {

                var responseLength = obj.xmlHttpRequest.responseText.length;

                if (responseLength != obj._oldResponseLength) {

                    obj.raiseEvent("Progress", obj, responseLength, contentLength);

                    obj._oldResponseLength = obj.xmlHttpRequest.responseText.length;

                }

            }

        }

        if (obj._progressStarted) return;

        obj._progressStarted = true;

        var _obj = this;

        this.__onProgress = function() {

            obj._onProgress();

            obj._progressTimer = window.setTimeout(_obj.__onProgress, obj.progressTimerInterval);

        }

        _obj.__onProgress();

    }



    obj._onInitializationHandled = false;

    obj._initObject = function() {



        if (obj.xmlHttpRequest != null) {

            delete obj.xmlHttpRequest["onreadystatechange"];

            obj.xmlHttpRequest = null;

        }

        if ((obj.xmlHttpRequest = obj.createXmlHttpRequest()) == null)

            return null;

        if (typeof obj.xmlHttpRequest.overrideMimeType != "undefined")

            obj.xmlHttpRequest.overrideMimeType(obj.mimeType);

        obj.xmlHttpRequest.onreadystatechange = function() {



            if (obj == null || obj.xmlHttpRequest == null)

                return;

            obj.raiseEvent("ReadyStateChange", obj, obj.xmlHttpRequest.readyState);

            obj._onProgress();

            switch (obj.xmlHttpRequest.readyState) {

                case 1: obj._onLoading(); break;

                case 2: obj._onLoaded(); break;

                case 3: obj._onInteractive(); break;

                case 4: obj._onComplete(); break;

            }

        };

        obj._onLoadingHandled =

            obj._onLoadedHandled =

            obj._onInteractiveHandled =

            obj._onCompleteHandled = false;

    };



    obj._onLoading = function() {



        if (obj._onLoadingHandled)

            return;

        if (!obj._retry && obj.group != null) {

            if (typeof advAJAX._groupData[obj.group] == "undefined")

                advAJAX._groupData[obj.group] = 0;

            advAJAX._groupData[obj.group]++;

            if (typeof obj.onGroupEnter == "function" && advAJAX._groupData[obj.group] == 1)

                obj.onGroupEnter(obj);

        }

        obj.raiseEvent("Loading", obj);

        obj._onLoadingHandled = true;

    };

    obj._onLoaded = function() {



        if (obj._onLoadedHandled)

            return;

        obj.raiseEvent("Loaded", obj);

        obj._onLoadedHandled = true;

    };

    obj._onInteractive = function() {



        if (obj._onInteractiveHandled)

            return;

        obj.raiseEvent("Interactive", obj);

        obj._onInteractiveHandled = true;

        if (!obj._progressStarted)

            obj._onProgress();

    };

    obj._onComplete = function() {



        if (obj._onCompleteHandled || obj.aborted)

            return;

        if (obj._progressStarted) {

            window.clearInterval(obj._progressTimer);

            obj._progressStarted = false;

        }

        obj.requestDone = true;

        with (obj.xmlHttpRequest) {

            obj.responseText = responseText;

            obj.responseXML = responseXML;

            if (typeof status != "undefined")

                obj.status = status;

            if (typeof statusText != "undefined")

                obj.statusText = statusText;

        }

        obj.raiseEvent("Complete", obj);

        obj._onCompleteHandled = true;

        if (obj.status == 200)

            obj.raiseEvent("Success", obj); else

            obj.raiseEvent("Error", obj);

        delete obj.xmlHttpRequest['onreadystatechange'];

        obj.xmlHttpRequest = null;

        if (obj.disableForm)

            obj.switchForm(true);

        obj._groupLeave();

        obj.raiseEvent("Finalization", obj);

    };



    obj._groupLeave = function() {



        if (obj.group != null) {

            advAJAX._groupData[obj.group]--;

            if (advAJAX._groupData[obj.group] == 0)

                obj.raiseEvent("GroupLeave", obj);

        }

    };



    obj._retry = false;

    obj._retryNo = 0;

    obj._onTimeout = function() {



        if (obj == null || obj.xmlHttpRequest == null || obj._onCompleteHandled)

            return;

        obj.aborted = true;

        obj.xmlHttpRequest.abort();

        obj.raiseEvent("Timeout", obj);

        obj._retry = true;

        if (obj._retryNo != obj.retryCount) {

            obj._initObject();

            if (obj.retryDelay > 0) {

                obj.raiseEvent("RetryDelay", obj);

                startTime = new Date().getTime();

                while (new Date().getTime() - startTime < obj.retryDelay);

            }

            obj._retryNo++;

            obj.raiseEvent("Retry", obj, obj._retryNo);

            obj.run();

        } else {

            delete obj.xmlHttpRequest["onreadystatechange"];

            obj.xmlHttpRequest = null;

            if (obj.disableForm)

                obj.switchForm(true);

            obj._groupLeave();

            obj.raiseEvent("Finalization", obj);

        }

    };



    obj.run = function() {



        obj._initObject();

        if (obj.xmlHttpRequest == null)

            return false;

        obj.aborted = false;

        if (!obj._onInitializationHandled) {

            obj.raiseEvent("Initialization", obj);

            obj._onInitializationHandled = true;

        }

        if (obj.method == "GET" && obj.unique)

            obj.parameters[encodeURIComponent(obj.uniqueParameter)] =

            new Date().getTime().toString().substr(5) + Math.floor(Math.random() * 100).toString();

        if (!obj._retry) {

            for (var a in obj.parameters) {

                if (obj.queryString.length > 0)

                    obj.queryString += "&";

                if (typeof obj.parameters[a] != "object")

                    obj.queryString += encodeURIComponent(a) + "=" + encodeURIComponent(obj.parameters[a]); else {

                    for (var i = 0; i < obj.parameters[a].length; i++)

                        obj.queryString += encodeURIComponent(a) + "=" + encodeURIComponent(obj.parameters[a][i]) + "&";

                    obj.queryString = obj.queryString.slice(0, -1);

                }

            }

            for (var a in obj.jsonParameters) {

                var useJson = typeof [].toJSONString == 'function';

                if (obj.queryString.length > 0)

                    obj.queryString += "&";

                obj.queryString += encodeURIComponent(a) + "=";

                if (useJson)

                    obj.queryString += encodeURIComponent(obj.jsonParameters[a].toJSONString()); else

                    obj.queryString += encodeURIComponent(obj.jsonParameters[a]);

            }

            if (obj.method == "GET" && obj.queryString.length > 0)

                obj.url += (obj.url.indexOf("?") != -1 ? "&" : "?") + obj.queryString;

        }

        if (obj.disableForm)

            obj.switchForm(false);

        try {

            obj.xmlHttpRequest.open(obj.method, obj.url, obj.async, obj.username || '', obj.password || '');

        } catch (e) {

            obj.raiseEvent("FatalError", obj, e);

            return;

        }

        if (obj.timeout > 0)

            setTimeout(obj._onTimeout, obj.timeout);

        if (typeof obj.xmlHttpRequest.setRequestHeader != "undefined")

            for (var a in obj.headers)

                obj.xmlHttpRequest.setRequestHeader(encodeURIComponent(a), encodeURIComponent(obj.headers[a]));

        if (obj.method == "POST" && typeof obj.xmlHttpRequest.setRequestHeader != "undefined") {

            obj.xmlHttpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

            obj.xmlHttpRequest.send(obj.queryString);

        } else if (obj.method == "GET")

            obj.xmlHttpRequest.send('');

    };



    obj.handleArguments = function(args) {



        if (typeof args.form == "object" && args.form != null) {

            obj.form = args.form;

            obj.appendForm();

        }

        for (a in args) {

            if (typeof obj[a] == "undefined")

                obj.parameters[a] = args[a]; else {

                if (a != "parameters" && a != "headers")

                    obj[a] = args[a]; else

                    for (b in args[a])

                        obj[a][b] = args[a][b];

            }

        }

        obj.method = obj.method.toUpperCase();

    };



    obj.switchForm = function(enable) {



        if (typeof obj.form != "object" || obj.form == null)

            return;

        with (obj.form)

            for (var nr = 0; nr < elements.length; nr++)

                if (!enable) {

                    if (elements[nr]["disabled"])

                        elements[nr]["_disabled"] = true; else

                        elements[nr]["disabled"] = "disabled";

                } else

                    if (typeof elements[nr]["_disabled"] == "undefined")

                        elements[nr].removeAttribute("disabled");

    };



    obj.appendForm = function() {



        with (obj.form) {

            obj.method = getAttribute("method").toUpperCase();

            obj.url = getAttribute("action");

            for (var nr = 0; nr < elements.length; nr++) {

                var e = elements[nr];

                if (e.disabled)

                    continue;

                switch (e.type) {

                    case "text":

                    case "password":

                    case "hidden":

                    case "textarea":

                        obj.addParameter(e.name, e.value);

                        break;

                    case "select-one":

                        if (e.selectedIndex >= 0)

                            obj.addParameter(e.name, e.options[e.selectedIndex].value);

                        break;

                    case "select-multiple":

                        for (var nr2 = 0; nr2 < e.options.length; nr2++)

                            if (e.options[nr2].selected)

                                obj.addParameter(e.name, e.options[nr2].value);

                        break;

                    case "checkbox":

                    case "radio":

                        if (e.checked)

                            obj.addParameter(e.name, e.value);

                        break;

                }

            }

        }

    };



    obj.addParameter = function(name, value) {

        if (typeof obj.parameters[name] == "undefined")

            obj.parameters[name] = value; else

        if (typeof obj.parameters[name] != "object")

            obj.parameters[name] = [ obj.parameters[name], value ]; else

        obj.parameters[name][obj.parameters[name].length] = value;

    };

    obj.delParameter = function(name) {



        delete obj.parameters[name];

    };

    obj.raiseEvent = function(name) {

        var args = [];

        for (var i = 1; i < arguments.length; i++)

            args.push(arguments[i]);

        if (typeof obj["on" + name] == "function")

            obj["on" + name].apply(null, args);

        if (name == "FatalError")

            obj.raiseEvent("Finalization", obj);

    }



    if (typeof advAJAX._defaultParameters != "undefined")

        obj.handleArguments(advAJAX._defaultParameters);

    return obj;

}



advAJAX.get = function(args) {



    return advAJAX.handleRequest("GET", args);

};



advAJAX.post = function(args) {



    return advAJAX.handleRequest("POST", args);

};



advAJAX.head = function(args) {



    return advAJAX.handleRequest("HEAD", args);

};



advAJAX.submit = function(form, args) {



    if (typeof args == "undefined" || args == null)

        return -1;

    if (typeof form != "object" || form == null)

        return -2;

    var request = new advAJAX();

    args["form"] = form;

    request.handleArguments(args);

    return request.run();

};



advAJAX.assign = function(form, args) {



    if (typeof args == "undefined" || args == null)

        return -1;

    if (typeof form != "object" || form == null)

        return -2;

    if (typeof form["onsubmit"] == "function")

        form["_onsubmit"] = form["onsubmit"];

    form["advajax_args"] = args;

    form["onsubmit"] = function() {

        if (typeof this["_onsubmit"] != "undefined" && this["_onsubmit"]() === false)

            return false;

        if (advAJAX.submit(this, this["advajax_args"]) == false)

            return true;

        return false;

    }

    return true;

};



advAJAX.download = function(targetObj, url) {



    if (typeof targetObj == "string")

        targetObj = document.getElementById(targetObj);

    if (!targetObj)

        return -1;

    advAJAX.get({

        url: url,

        onSuccess : function(obj) {

            targetObj.innerHTML = obj.responseText;

        }

    });

};



advAJAX.scan = function() {



    var obj = document.getElementsByTagName("a");

    for (var i = 0; i < obj.length;) {

        if (obj[i].getAttribute("rel") == "advancedajax" && obj[i].getAttribute("href") !== null) {

            var url = obj[i].getAttribute("href");

            var div = document.createElement("div");

            div.innerHTML = obj[i].innerHTML;

            div.className = obj[i].className;

            var parent = obj[i].parentNode;

            parent.insertBefore(div, obj[i]);

            parent.removeChild(obj[i]);

            advAJAX.download(div, url);

        } else i++;

    }

};



advAJAX.handleRequest = function(requestType, args) {



    if (typeof args == "undefined" || args == null)

        return -1;

    var request = new advAJAX();

    window.advajax_obj = request;

    request.method = requestType;

    request.handleArguments(args);

    return request.run();

};



advAJAX._defaultParameters = new Object();

advAJAX.setDefaultParameters = function(args) {



    advAJAX._defaultParameters = new Object();

    for (a in args)

        advAJAX._defaultParameters[a] = args[a];

};



advAJAX._groupData = new Object();