# Source: richfaces.js

    /*
     * JBoss, Home of Professional Open Source
     * Copyright 2013, Red Hat, Inc. and individual contributors
     * by the @authors tag. See the copyright.txt in the distribution for a
     * full listing of individual contributors.
     *
     * This is free software; you can redistribute it and/or modify it
     * under the terms of the GNU Lesser General Public License as
     * published by the Free Software Foundation; either version 2.1 of
     * the License, or (at your option) any later version.
     *
     * This software is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this software; if not, write to the Free
     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
     */

    window.RichFaces = window.RichFaces || {};
    RichFaces.jQuery = RichFaces.jQuery || window.jQuery;

    (function($, rf) {

        rf.RICH_CONTAINER = "rf";

        /**
         * All input elements which can hold value, which are enabled and visible.
         */
        rf.EDITABLE_INPUT_SELECTOR = ":not(:submit):not(:button):not(:image):input:visible:enabled";

        //keys codes
        rf.KEYS = {
            BACKSPACE: 8,
            TAB: 9,
            RETURN: 13,
            ESC: 27,
            PAGEUP: 33,
            PAGEDOWN: 34,
            END: 35,
            HOME: 36,
            LEFT: 37,
            UP: 38,
            RIGHT: 39,
            DOWN: 40,
            DEL: 46
        };

        if (window.jsf) {
            var jsfAjaxRequest = jsf.ajax.request;
            var jsfAjaxResponse = jsf.ajax.response;
        }

        // get DOM element by id or DOM element or jQuery object
        rf.getDomElement = function (source) {
            var type = typeof source;
            var element;
            if (source == null) {
                element = null;
            } else if (type == "string") {
                // id
                element = document.getElementById(source);
            } else if (type == "object") {
                if (source.nodeType) {
                    // DOM element
                    element = source;
                } else
                if (source instanceof $) {
                    // jQuery object
                    element = source.get(0);
                }
            }
            return element;
        };

        // get RichFaces component object by component id or DOM element or jQuery object
        rf.component = function (source) {
            var element = rf.getDomElement(source);

            if (element) {
                return $(element).data("rf.widget") || (element[rf.RICH_CONTAINER] || {})["component"];
            }
        };

        rf.$ = function(source) {
            rf.log.warn("The function `RichFaces.$` has been deprecated and renamed to `RichFaces.component`.  Please adjust your usage accordingly.");
            return rf.component.call(this, source);
        }

        /**
         * jQuery selector ":editable" which selects only input elements which can be edited, are visible and enabled
         */
        $.extend($.expr[':'], {
            editable : function(element) {
                return $(element).is(rf.EDITABLE_INPUT_SELECTOR);
            }
        });

        rf.$$ = function(componentName, element) {
            while (element.parentNode) {
                var e = element[rf.RICH_CONTAINER];
                if (e && e.component && e.component.name == componentName)
                    return e.component;
                else
                    element = element.parentNode;
            }
        };
        rf.findNonVisualComponents = function (source) {
            var element = rf.getDomElement(source);

            if (element) {
                return (element[rf.RICH_CONTAINER] || {})["attachedComponents"];
            }
        };

        // find component and call his method
        rf.invokeMethod = function(source, method) {
            var c = rf.component(source);
            var f;
            if (c && typeof (f = c[method]) == "function") {
                return f.apply(c, Array.prototype.slice.call(arguments, 2));
            }
        };

        //dom cleaner
        rf.cleanComponent = function (source) {
            var component = rf.component(source);
            if (component && !$(source).data('rf.bridge')) {
                //TODO fire destroy event
                component.destroy();
                component.detach(source);
            }
            var attachedComponents = rf.findNonVisualComponents(source);
            if (attachedComponents) {
                for (var i in attachedComponents) {
                    if (attachedComponents.hasOwnProperty(i) && attachedComponents[i]) {
                        attachedComponents[i].forEach(function(component) {component.destroy()});
                    }
                }
            }
        };

        rf.cleanDom = function(source) {
            var e = (typeof source == "string") ? document.getElementById(source) : $('body').get(0);
            if (source == "javax.faces.ViewRoot") {
                e = $('body').get(0);
            }
            if (e) {
                // Fire a DOM cleanup event
                $(e).trigger("beforeDomClean.RICH");
                var elements = e.getElementsByTagName("*");
                if (elements.length) {
                    $.each(elements, function(index) {
                        rf.cleanComponent(this);
                    });
                    $.cleanData(elements);
                }
                // clean RF 4 BaseComponent components
                rf.cleanComponent(e);
                // cleans data and jQuery UI Widget Factory components
                $.cleanData([e]);
                $(e).trigger("afterDomClean.RICH");
            }
        };

        //form.js
        rf.submitForm = function(form, parameters, target) {
            if (typeof form === "string") {
                form = $(form)
            }
            var initialTarget = form.attr("target");
            var parameterInputs = new Array();
            try {
                form.attr("target", target);

                if (parameters) {
                    for (var parameterName in parameters) {
                        if (parameters.hasOwnProperty(parameterName)) {
                            var parameterValue = parameters[parameterName];

                            var input = $("input[name='" + parameterName + "']", form);
                            if (input.length == 0) {
                                var newInput = $("<input />").attr({type: 'hidden', name: parameterName, value: parameterValue});
                                if (parameterName === 'javax.faces.portletbridge.STATE_ID' /* fix for fileUpload in portlets */) {
                                    input = newInput.prependTo(form);
                                } else {
                                    input = newInput.appendTo(form);
                                }
                            } else {
                                input.val(parameterValue);
                            }

                            input.each(function() {
                                parameterInputs.push(this)
                            });
                        }
                    }
                }

                //TODO: inline onsubmit handler is not triggered - http://dev.jquery.com/ticket/4930
                form.trigger("submit");
            } finally {
                if (initialTarget === undefined) {
                    form.removeAttr("target");
                } else {
                    form.attr("target", initialTarget);
                }
                $(parameterInputs).remove();
            }
        };

        //utils.js
        $.fn.toXML = function () {
            var out = '';

            if (this.length > 0) {
                if (typeof XMLSerializer == 'function' ||
                    typeof XMLSerializer == 'object') {

                    var xs = new XMLSerializer();
                    this.each(function() {
                        out += xs.serializeToString(this);
                    });
                } else if (this[0].xml !== undefined) {
                    this.each(function() {
                        out += this.xml;
                    });
                } else {
                    this.each(function() {
                        out += this;
                    });
                }
            }

            return out;
        };

        //there is the same pattern in server-side code:
        //org.richfaces.javascript.ScriptUtils.escapeCSSMetachars(String)
        var CSS_METACHARS_PATTERN = /([#;&,.+*~':"!^$\[\]()=>|\/])/g;

        /**
         * Escapes CSS meta-characters in string according to
         *  <a href="http://api.jquery.com/category/selectors/">jQuery selectors</a> document.
         *
         * @param s - string to escape meta-characters in
         * @return string with meta-characters escaped
         */
        rf.escapeCSSMetachars = function(s) {
            //TODO nick - cache results

            return s.replace(CSS_METACHARS_PATTERN, "\\$1");
        };

        var logImpl;

        rf.setLog = function(newLogImpl) {
            logImpl = newLogImpl;
        };

        rf.log = {
            debug: function(text) {
                if (logImpl) {
                    logImpl.debug(text);
                }
            },

            info: function(text) {
                if (logImpl) {
                    logImpl.info(text);
                }
            },

            warn: function(text) {
                if (logImpl) {
                    logImpl.warn(text);
                }
            },

            error: function(text) {
                if (logImpl) {
                    logImpl.error(text);
                }
            },

            setLevel: function(level) {
                if (logImpl) {
                    logImpl.setLevel(level);
                }
            },

            getLevel: function() {
                if (logImpl) {
                    return logImpl.getLevel();
                }
                return 'info';
            },

            clear: function() {
                if (logImpl) {
                    logImpl.clear();
                }
            }
        };

        /**
         * Evaluates chained properties for the "base" object.
         * For example, window.document.location is equivalent to
         * "propertyNamesString" = "document.location" and "base" = window
         * Evaluation is safe, so it stops on the first null or undefined object
         *
         * @param propertyNamesArray - array of strings that contains names of the properties to evaluate
         * @param base - base object to evaluate properties on
         * @return returns result of evaluation or empty string
         */
        rf.getValue = function(propertyNamesArray, base) {
            var result = base;
            var c = 0;
            do {
                result = result[propertyNamesArray[c++]];
            } while (result && c != propertyNamesArray.length);

            return result;
        };

        var VARIABLE_NAME_PATTERN_STRING = "[_A-Z,a-z]\\w*";
        var VARIABLES_CHAIN = new RegExp("^\\s*" + VARIABLE_NAME_PATTERN_STRING + "(?:\\s*\\.\\s*" + VARIABLE_NAME_PATTERN_STRING + ")*\\s*$");
        var DOT_SEPARATOR = /\s*\.\s*/;

        rf.evalMacro = function(macro, base) {
            var value = "";
            // variable evaluation
            if (VARIABLES_CHAIN.test(macro)) {
                // object's variable evaluation
                var propertyNamesArray = $.trim(macro).split(DOT_SEPARATOR);
                value = rf.getValue(propertyNamesArray, base);
                if (!value) {
                    value = rf.getValue(propertyNamesArray, window);
                }
            } else {
                //js string evaluation
                try {
                    if (base.eval) {
                        value = base.eval(macro);
                    } else with (base) {
                        value = eval(macro);
                    }
                } catch (e) {
                    rf.log.warn("Exception: " + e.message + "\n[" + macro + "]");
                }
            }

            if (typeof value == 'function') {
                value = value(base);
            }
            //TODO 0 and false are also treated as null values
            return value || "";
        };

        var ALPHA_NUMERIC_MULTI_CHAR_REGEXP = /^\w+$/;

        rf.interpolate = function (placeholders, context) {
            var contextVarsArray = new Array();
            for (var contextVar in context) {
                if (ALPHA_NUMERIC_MULTI_CHAR_REGEXP.test(contextVar)) {
                    //guarantees that no escaping for the below RegExp is necessary
                    contextVarsArray.push(contextVar);
                }
            }

            var regexp = new RegExp("\\{(" + contextVarsArray.join("|") + ")\\}", "g");
            return placeholders.replace(regexp, function(str, contextVar) {
                return context[contextVar];
            });
        };

        rf.clonePosition = function(element, baseElement, positioning, offset) {

        };
        //

        var jsfEventsAdapterEventNames = {
            event: {
                'begin': ['begin'],
                'complete': ['beforedomupdate'],
                'success': ['success', 'complete']
            },
            error: ['error', 'complete']
        };

        var getExtensionResponseElement = function(responseXML) {
            return $("partial-response extension#org\\.richfaces\\.extension", responseXML);
        };

        var JSON_STRING_START = /^\s*(\[|\{)/;

        rf.parseJSON = function(dataString) {
            try {
                if (dataString) {
                    if (JSON_STRING_START.test(dataString)) {
                        return $.parseJSON(dataString);
                    } else {
                        var parsedData = $.parseJSON("{\"root\": " + dataString + "}");
                        return parsedData.root;
                    }
                }
            } catch (e) {
                rf.log.warn("Error evaluating JSON data from element <" + elementName + ">: " + e.message);
            }

            return null;
        }

        var getJSONData = function(extensionElement, elementName) {
            var dataString = $.trim(extensionElement.children(elementName).text());
            return rf.parseJSON(dataString);
        };

        rf.createJSFEventsAdapter = function(handlers) {
            //hash of handlers
            //supported are:
            // - begin
            // - beforedomupdate
            // - success
            // - error
            // - complete
            var handlers = handlers || {};
            var ignoreSuccess;

            return function(eventData) {
                var source = eventData.source;
                //that's request status, not status control data
                var status = eventData.status;
                var type = eventData.type;

                if (type == 'event' && status == 'begin') {
                    ignoreSuccess = false;
                } else if (type == 'error') {
                    ignoreSuccess = true;
                } else if (ignoreSuccess) {
                    return;
                } else if (status == 'complete' && rf.ajaxContainer && rf.ajaxContainer.isIgnoreResponse && rf.ajaxContainer.isIgnoreResponse()) {
                    return;
                }

                var typeHandlers = jsfEventsAdapterEventNames[type];
                var handlerNames = (typeHandlers || {})[status] || typeHandlers;

                if (handlerNames) {
                    for (var i = 0; i < handlerNames.length; i++) {
                        var eventType = handlerNames[i];
                        var handler = handlers[eventType];
                        if (handler) {
                            var event = {};
                            $.extend(event, eventData);
                            event.type = eventType;
                            if (type != 'error') {
                                delete event.status;

                                if (event.responseXML) {
                                    var xml = getExtensionResponseElement(event.responseXML);
                                    var data = getJSONData(xml, "data");
                                    var componentData = getJSONData(xml, "componentData");

                                    event.data = data;
                                    event.componentData = componentData || {};
                                }
                            }
                            handler.call(source, event);
                        }
                    }
                }
            };
        };

        rf.setGlobalStatusNameVariable = function(statusName) {
            //TODO: parallel requests
            if (statusName) {
                rf['statusName'] = statusName;
            } else {
                delete rf['statusName'];
            }
        }

        rf.setZeroRequestDelay = function(options) {
            if (typeof options.requestDelay == "undefined") {
                options.requestDelay = 0;
            }
        };

        var chain = function() {
            var functions = arguments;
            if (functions.length == 1) {
                return functions[0];
            } else {
                return function() {
                    var callResult;
                    for (var i = 0; i < functions.length; i++) {
                        var f = functions[i];
                        if (f) {
                            callResult = f.apply(this, arguments);
                        }
                    }

                    return callResult;
                };
            }
        };

        var createEventHandler = function(handlerCode) {
            if (handlerCode) {
                // ensure safe execution, errors would cause rf.queue to hang up (RF-12132)
                var safeHandlerCode = "try {" +
                        handlerCode +
                    "} catch (e) {" +
                        "window.RichFaces.log.error('Error in method execution: ' + e.message)" +
                    "}";
                return new Function("event", safeHandlerCode);
            }

            return null;
        };

        //TODO take events just from .java code using EL-expression
        var AJAX_EVENTS = (function() {
            var serverEventHandler = function(clientHandler, event) {
                var xml = getExtensionResponseElement(event.responseXML);

                var serverHandler = createEventHandler(xml.children(event.type).text());

                if (clientHandler) {
                    clientHandler.call(this, event);
                }

                if (serverHandler) {
                    serverHandler.call(this, event);
                }
            };

            return {
                'error': null,
                'begin': null,
                'complete': serverEventHandler,
                'beforedomupdate': serverEventHandler
            }
        }());

        rf.requestParams = null;

        rf.ajax = function(source, event, options) {
            var options = options || {};

            var sourceId = getSourceId(source, options);
            var sourceElement = getSourceElement(source);

            // event source re-targeting finds a RichFaces component root
            // to setup javax.faces.source correctly - RF-12616)
            if (sourceElement) {
                source = searchForComponentRootOrReturn(sourceElement);
            }

            parameters = options.parameters || {}; // TODO: change "parameters" to "richfaces.ajax.params"
            parameters.execute = "@component";
            parameters.render = "@component";

            if (options.clientParameters) {
                $.extend(parameters, options.clientParameters);
            }

            if (!parameters["org.richfaces.ajax.component"]) {
                parameters["org.richfaces.ajax.component"] = sourceId;
            }

            if (options.incId) {
                parameters[sourceId] = sourceId;
            }

            if (rf.queue) {
                parameters.queueId = options.queueId;
            }

            var form = getFormElement(sourceElement);
            if (window.mojarra && form && form.enctype == "multipart/form-data"
                && jsf.specversion > 20000) {
                var input, name, value;
                    rf.requestParams = [];
                // RF-13828: when inside multipart/form-data create hidden inputs for request parameters
                //   Mojarra is going to submit the form instead of sending a XmlHttpRequest
                for (var i in parameters) {
                    if (parameters.hasOwnProperty(i)) {
                        value = parameters[i];

                        if (i !== "javax.faces.source" &&
                            i !== "javax.faces.partial.event" &&
                            i !== "javax.faces.partial.execute" &&
                            i !== "javax.faces.partial.render" &&
                            i !== "javax.faces.partial.ajax" &&
                            i !== "javax.faces.behavior.event" &&
                            i !== "queueId") {
                                input = document.createElement("input");
                                input.setAttribute("type", "hidden");
                                input.setAttribute("id", i);
                                input.setAttribute("name", i);
                                input.setAttribute("value", value);
                                form.appendChild(input);
                                rf.requestParams.push(i);
                            }
                    }
                }
            }

            // propagates some options to process it in jsf.ajax.request
            parameters.rfExt = {};
            parameters.rfExt.status = options.status;
            for (var eventName in AJAX_EVENTS) {
                if (AJAX_EVENTS.hasOwnProperty(eventName)) {
                    parameters.rfExt[eventName] = options[eventName];
                }
            }

            jsf.ajax.request(source, event, parameters);
        };

        if (window.jsf) {
            jsf.ajax.request = function request(source, event, options) {

                // build parameters, taking options.rfExt into consideration
                var parameters = $.extend({}, options);
                parameters.rfExt = null;

                var eventHandlers;

                var sourceElement = getSourceElement(source);
                var form = getFormElement(sourceElement);

                for (var eventName in AJAX_EVENTS) {
                    if (AJAX_EVENTS.hasOwnProperty(eventName)) {
                        var handlerCode, handler;

                        if (options.rfExt) {
                            handlerCode = options.rfExt[eventName];
                            handler = typeof handlerCode == "function" ? handlerCode : createEventHandler(handlerCode);
                        }

                        var serverHandler = AJAX_EVENTS[eventName];
                        if (serverHandler) {
                            handler = $.proxy(function(clientHandler, event) {
                              return serverHandler.call(this, clientHandler, event);
                            }, sourceElement, handler);
                        }

                        if (handler) {
                            eventHandlers = eventHandlers || {};
                            eventHandlers[eventName] = handler;
                        }
                    }
                }

                if (options.rfExt && options.rfExt.status) {
                    var namedStatusEventHandler = function() {
                        rf.setGlobalStatusNameVariable(options.rfExt.status);
                    };

                    //TODO add support for options.submit
                    eventHandlers = eventHandlers || {};
                    if (eventHandlers.begin) {
                        eventHandlers.begin = chain(namedStatusEventHandler, eventHandlers.begin);
                    } else {
                        eventHandlers.begin = namedStatusEventHandler;
                    }
                }

                // register handlers for form events: ajaxbegin and ajaxbeforedomupdate
                if (form) {
                    eventHandlers.begin = chain(eventHandlers.begin, function() { $(form).trigger('ajaxbegin'); });
                    eventHandlers.beforedomupdate = chain(eventHandlers.beforedomupdate, function() { $(form).trigger('ajaxbeforedomupdate'); });
                    eventHandlers.complete = chain(eventHandlers.complete, function() { $(form).trigger('ajaxcomplete'); });
                }

                if (eventHandlers) {
                    var eventsAdapter = rf.createJSFEventsAdapter(eventHandlers);
                    parameters['onevent'] = chain(options.onevent, eventsAdapter);
                    parameters['onerror'] = chain(options.onerror, eventsAdapter);
                }

                // trigger handler for form event: ajaxsubmit
                if (form) {
                    $(form).trigger('ajaxsubmit');
                }

                return jsfAjaxRequest(source, event, parameters);
            };

            jsf.ajax.response = function(request, context) {
                // for all RichFaces.ajax requests
                if (context.render == '@component') {
                    // get list of IDs updated on the server - replaces @render option which is normally available on client
                    context.render = $("extension[id='org.richfaces.extension'] render", request.responseXML).text();
                }

                // remove hidden inputs if they were created before submission
                if (window.mojarra && rf.requestParams && rf.requestParams.length) {
                    for (var i=0; i<rf.requestParams.length; i++) {
                        var elements = context.form.childNodes;
                        for (var j=0; j<elements.length; j++) {
                            if (!elements[j].type === "hidden") {
                                continue;
                            }
                            if (elements[j].name === rf.requestParams[i]) {
                                var node = context.form.removeChild(elements[j]);
                                node = null;
                                break;
                            }
                        }
                    }
                }
                return jsfAjaxResponse(request, context);
            };
        }

        /**
         * Returns RichFaces component root for given element in the list of ancestors of sourceElement.
         * Otherwise returns sourceElement if RichFaces component root can't be located.
         */
        var searchForComponentRootOrReturn = function(sourceElement) {
            if (sourceElement.id && !isRichFacesComponent(sourceElement)) {
                var parentElement = false;
                $(sourceElement).parents().each(function() {
                    if (this.id && sourceElement.id.indexOf(this.id) == 0) { // otherwise parent element is definitely not JSF component
                        var suffix = sourceElement.id.substring(this.id.length); // extract suffix
                        if (suffix.match(/^[a-zA-Z]*$/) && isRichFacesComponent(this)) {
                            parentElement = this;
                            return false;
                        }
                    }
                });
                if (parentElement !== false) {
                    return parentElement;
                }
            }
            return sourceElement;
        };

        /**
         * Detects whether the element has bound RichFaces component.
         *
         * Supports detection of RichFaces 5 (bridge-base.js) and RichFaces 4 (richfaces-base-component.js) components.
         */
        var isRichFacesComponent = function(element) {
          return $(element).data('rf.bridge') || rf.component(element);
        };

        var getSourceElement = function(source) {
            if (typeof source === 'string') {
                return document.getElementById(source);
            } else if (typeof source === 'object') {
                return source;
            } else {
                throw new Error("jsf.request: source must be object or string");
            }
        };

        var getFormElement = function(sourceElement) {
            if ($(sourceElement).is('form')) {
                return sourceElement;
            } else {
                return $('form').has(sourceElement).get(0);
            }
        };

        var getSourceId = function(source, options) {
            if (options.sourceId) {
                return options.sourceId;
            } else {
                return (typeof source == 'object' && (source.id || source.name)) ? (source.id ? source.id : source.name) : source;
            }
        };

        var ajaxOnComplete = function (data) {
            var type = data.type;
            var responseXML = data.responseXML;

            if (data.type == 'event' && data.status == 'complete' && responseXML) {
                var partialResponse = $(responseXML).children("partial-response");
                if (partialResponse && partialResponse.length) {
                    var elements = partialResponse.children('changes').children('update, delete');
                    $.each(elements, function () {
                        rf.cleanDom($(this).attr('id'));
                    });
                }
            }
        };

        rf.javascriptServiceComplete = function(event) {
            $(function() {
                $(document).trigger("javascriptServiceComplete");
            });
        };

        var attachAjaxDOMCleaner = function() {
            // move this code to somewhere
            if (typeof jsf != 'undefined' && jsf.ajax) {
                jsf.ajax.addOnEvent(ajaxOnComplete);

                return true;
            }

            return false;
        };

        if (!attachAjaxDOMCleaner()) {
            $(document).ready(attachAjaxDOMCleaner);
        }

        if (window.addEventListener) {
            window.addEventListener("unload", rf.cleanDom, false);
        } else {
            window.attachEvent("onunload", rf.cleanDom);
        }

        // browser detection, taken jQuery Migrate plugin (https://github.com/jquery/jquery-migrate)
        //     and atmosphere.js
        rf.browser = {};
        var ua = navigator.userAgent.toLowerCase(),
            match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
                /(webkit)[ \/]([\w.]+)/.exec(ua) ||
                /(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
                /(msie) ([\w.]+)/.exec(ua) ||
                /(trident)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
                ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
                [];

        rf.browser[match[1] || ""] = true;
        rf.browser.version = match[2] || "0";

        // Chrome is Webkit, but Webkit is also Safari.
    	if ( rf.browser.chrome ) {
    		rf.browser.webkit = true;
    	} else if ( rf.browser.webkit ) {
    		rf.browser.safari = true;
    	}

        // Trident is the layout engine of the Internet Explorer
        // IE 11 has no "MSIE: 11.0" token
        if (rf.browser.trident) {
            rf.browser.msie = true;
        }

        // MyFaces 2.2 workaround, skip input.rf-fu-inp (fileupload) when looking for a multipart candidate
        if (window.myfaces && myfaces._impl && myfaces._impl._util && myfaces._impl._util._Dom.isMultipartCandidate) {
            var oldIsMultipartCandidate = myfaces._impl._util._Dom.isMultipartCandidate,
                that = myfaces._impl._util._Dom;

            myfaces._impl._util._Dom.isMultipartCandidate = function (executes) {
                if (that._Lang.isString(executes)) {
                    executes = that._Lang.strToArray(executes, /\s+/);
                }

                for (var cnt = 0, len = executes.length; cnt < len ; cnt ++) {
                    var element = that.byId(executes[cnt]);
                    var inputs = that.findByTagName(element, "input", true);
                    for (var cnt2 = 0, len2 = inputs.length; cnt2 < len2 ; cnt2++) {
                        if (that.getAttribute(inputs[cnt2], "type") == "file" &&
                            (!that.getAttribute(inputs[cnt2], "class") ||
                            that.getAttribute(inputs[cnt2], "class").search("rf-fu-inp") == -1))
                        return true;
                    }
                }
                return false;
            };
        }
    }(RichFaces.jQuery, RichFaces));