Proyectos de Subversion Moodle

YUI.add('yui2-uploader', function(Y) {
    var YAHOO    = Y.YUI2;
    /*
Copyright (c) 2011, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.html
version: 2.9.0
*/
/*extern ActiveXObject, __flash_unloadHandler, __flash_savedUnloadHandler */
/*!
 * SWFObject v1.5: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
 *
 * SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 * @namespace YAHOO
 */

YAHOO.namespace("deconcept"); 
        
YAHOO.deconcept = YAHOO.deconcept || {};

if(typeof YAHOO.deconcept.util == "undefined" || !YAHOO.deconcept.util)
{
        YAHOO.deconcept.util = {};
}

if(typeof YAHOO.deconcept.SWFObjectUtil == "undefined" || !YAHOO.deconcept.SWFObjectUtil)
{
        YAHOO.deconcept.SWFObjectUtil = {};
}

YAHOO.deconcept.SWFObject = function(swf, id, w, h, ver, c, quality, xiRedirectUrl, redirectUrl, detectKey)
{
        if(!document.getElementById) { return; }
        this.DETECT_KEY = detectKey ? detectKey : 'detectflash';
        this.skipDetect = YAHOO.deconcept.util.getRequestParameter(this.DETECT_KEY);
        this.params = {};
        this.variables = {};
        this.attributes = [];
        if(swf) { this.setAttribute('swf', swf); }
        if(id) { this.setAttribute('id', id); }
        if(w) { this.setAttribute('width', w); }
        if(h) { this.setAttribute('height', h); }
        if(ver) { this.setAttribute('version', new YAHOO.deconcept.PlayerVersion(ver.toString().split("."))); }
        this.installedVer = YAHOO.deconcept.SWFObjectUtil.getPlayerVersion();
        if (!window.opera && document.all && this.installedVer.major > 7)
        {
                // only add the onunload cleanup if the Flash Player version supports External Interface and we are in IE
                YAHOO.deconcept.SWFObject.doPrepUnload = true;
        }
        if(c)
        {
                this.addParam('bgcolor', c);
        }
        var q = quality ? quality : 'high';
        this.addParam('quality', q);
        this.setAttribute('useExpressInstall', false);
        this.setAttribute('doExpressInstall', false);
        var xir = (xiRedirectUrl) ? xiRedirectUrl : window.location;
        this.setAttribute('xiRedirectUrl', xir);
        this.setAttribute('redirectUrl', '');
        if(redirectUrl)
        {
                this.setAttribute('redirectUrl', redirectUrl);
        }
};

YAHOO.deconcept.SWFObject.prototype =
{
        useExpressInstall: function(path)
        {
                this.xiSWFPath = !path ? "expressinstall.swf" : path;
                this.setAttribute('useExpressInstall', true);
        },
        setAttribute: function(name, value){
                this.attributes[name] = value;
        },
        getAttribute: function(name){
                return this.attributes[name];
        },
        addParam: function(name, value){
                this.params[name] = value;
        },
        getParams: function(){
                return this.params;
        },
        addVariable: function(name, value){
                this.variables[name] = value;
        },
        getVariable: function(name){
                return this.variables[name];
        },
        getVariables: function(){
                return this.variables;
        },
        getVariablePairs: function(){
                var variablePairs = [];
                var key;
                var variables = this.getVariables();
                for(key in variables)
                {
                        if(variables.hasOwnProperty(key))
                        {
                                variablePairs[variablePairs.length] = YAHOO.lang.escapeHTML(key || '') +"="+ YAHOO.lang.escapeHTML(encodeURIComponent(variables[key]  || ''));
                        }
                }
                return variablePairs;
        },
        getSWFHTML: function() {
                var swfNode = "";
                var params = {};
                var key = "";
                var pairs = "";
                if (navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length) { // netscape plugin architecture
                        if (this.getAttribute("doExpressInstall")) {
                                this.addVariable("MMplayerType", "PlugIn");
                                this.setAttribute('swf', this.xiSWFPath);
                        }
                        swfNode = '<embed type="application/x-shockwave-flash" src="'+ YAHOO.lang.escapeHTML(this.getAttribute('swf') || '') +'" width="'+ YAHOO.lang.escapeHTML(this.getAttribute('width') || '') +'" height="'+ YAHOO.lang.escapeHTML(this.getAttribute('height') || '') +'" style="'+ YAHOO.lang.escapeHTML(this.getAttribute('style') || '') +'"';
                        swfNode += ' id="'+ YAHOO.lang.escapeHTML(this.getAttribute('id') || '') +'" name="'+ YAHOO.lang.escapeHTML(this.getAttribute('id') || '') +'" ';
                        params = this.getParams();
                        for(key in params)
                        {
                                if(params.hasOwnProperty(key))
                                {
                                        swfNode += YAHOO.lang.escapeHTML(key || '') +'="'+ YAHOO.lang.escapeHTML(params[key] || '') +'" ';
                                }
                        }
                        pairs = this.getVariablePairs().join("&");
                        if (pairs.length > 0){ swfNode += 'flashvars="'+ pairs +'"'; }
                        swfNode += '/>';
                } else { // PC IE
                        if (this.getAttribute("doExpressInstall")) {
                                this.addVariable("MMplayerType", "ActiveX");
                                this.setAttribute('swf', this.xiSWFPath);
                        }
                        swfNode = '<object id="'+ YAHOO.lang.escapeHTML(this.getAttribute('id') || '') +'" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+ YAHOO.lang.escapeHTML(this.getAttribute('width') || '') +'" height="'+ YAHOO.lang.escapeHTML(this.getAttribute('height') || '') +'" style="'+ YAHOO.lang.escapeHTML(this.getAttribute('style') || '') +'">';
                        swfNode += '<param name="movie" value="'+ YAHOO.lang.escapeHTML(this.getAttribute('swf') || '') +'" />';
                        params = this.getParams();
                        for(key in params)
                        {
                                if(params.hasOwnProperty(key))
                                {
                                        swfNode += '<param name="'+ YAHOO.lang.escapeHTML(key || '') +'" value="'+ YAHOO.lang.escapeHTML(params[key] || '') +'" />';
                                }
                        }
                        pairs = this.getVariablePairs().join("&");
                        if(pairs.length > 0) {swfNode += '<param name="flashvars" value="'+ pairs +'" />';}
                        swfNode += "</object>";
                }
                return swfNode;
        },
        write: function(elementId)
        {
                if(this.getAttribute('useExpressInstall')) {
                        // check to see if we need to do an express install
                        var expressInstallReqVer = new YAHOO.deconcept.PlayerVersion([6,0,65]);
                        if (this.installedVer.versionIsValid(expressInstallReqVer) && !this.installedVer.versionIsValid(this.getAttribute('version'))) {
                                this.setAttribute('doExpressInstall', true);
                                this.addVariable("MMredirectURL", escape(this.getAttribute('xiRedirectUrl')));
                                document.title = document.title.slice(0, 47) + " - Flash Player Installation";
                                this.addVariable("MMdoctitle", document.title);
                        }
                }
                if(this.skipDetect || this.getAttribute('doExpressInstall') || this.installedVer.versionIsValid(this.getAttribute('version')))
                {
                        var n = (typeof elementId == 'string') ? document.getElementById(elementId) : elementId;
                        n.innerHTML = this.getSWFHTML();
                        return true;
                }
                else
                {
                        if(this.getAttribute('redirectUrl') !== "")
                        {
                                document.location.replace(this.getAttribute('redirectUrl'));
                        }
                }
                return false;
        }
};

/* ---- detection functions ---- */
YAHOO.deconcept.SWFObjectUtil.getPlayerVersion = function()
{
        var axo = null;
        var PlayerVersion = new YAHOO.deconcept.PlayerVersion([0,0,0]);
        if(navigator.plugins && navigator.mimeTypes.length)
        {
                var x = navigator.plugins["Shockwave Flash"];
                if(x && x.description)
                {
                        PlayerVersion = new YAHOO.deconcept.PlayerVersion(x.description.replace(/([a-zA-Z]|\s)+/, "").replace(/(\s+r|\s+b[0-9]+)/, ".").split("."));
                }
        }
        else if (navigator.userAgent && navigator.userAgent.indexOf("Windows CE") >= 0)
        { // if Windows CE
                var counter = 3;
                while(axo)
                {
                        try
                        {
                                counter++;
                                axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash."+ counter);
//                              document.write("player v: "+ counter);
                                PlayerVersion = new YAHOO.deconcept.PlayerVersion([counter,0,0]);
                        }
                        catch(e)
                        {
                                axo = null;
                        }
                }
        }
        else
        { // Win IE (non mobile)
                // do minor version lookup in IE, but avoid fp6 crashing issues
                // see http://blog.deconcept.com/2006/01/11/getvariable-setvariable-crash-internet-explorer-flash-6/
                try
                {
                        axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
                }
                catch(e)
                {
                        try
                        {
                                axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
                                PlayerVersion = new YAHOO.deconcept.PlayerVersion([6,0,21]);
                                axo.AllowScriptAccess = "always"; // error if player version < 6.0.47 (thanks to Michael Williams @ Adobe for this code)
                        }
                        catch(e)
                        {
                                if(PlayerVersion.major == 6)
                                {
                                        return PlayerVersion;
                                }
                        }
                        try
                        {
                                axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
                        }
                        catch(e) {}
                }
                
                if(axo !== null)
                {
                        PlayerVersion = new YAHOO.deconcept.PlayerVersion(axo.GetVariable("$version").split(" ")[1].split(","));
                }
        }
        return PlayerVersion;
};

YAHOO.deconcept.PlayerVersion = function(arrVersion)
{
        this.major = arrVersion[0] !== null ? parseInt(arrVersion[0], 0) : 0;
        this.minor = arrVersion[1] !== null ? parseInt(arrVersion[1], 0) : 0;
        this.rev = arrVersion[2] !== null ? parseInt(arrVersion[2], 0) : 0;
};

YAHOO.deconcept.PlayerVersion.prototype.versionIsValid = function(fv)
{
        if(this.major < fv.major)
        {
                return false;
        }
        if(this.major > fv.major)
        {
                return true;
        }
        if(this.minor < fv.minor)
        {
                return false;
        }
        if(this.minor > fv.minor)
        {
                return true;
        }
        if(this.rev < fv.rev)
        {
                return false;
        }
        return true;
};

/* ---- get value of query string param ---- */
YAHOO.deconcept.util =
{
        getRequestParameter: function(param)
        {
                var q = document.location.search || document.location.hash;
                if(param === null) { return q; }
                if(q)
                {
                        var pairs = q.substring(1).split("&");
                        for(var i=0; i < pairs.length; i++)
                        {
                                if (pairs[i].substring(0, pairs[i].indexOf("=")) == param)
                                {
                                        return pairs[i].substring((pairs[i].indexOf("=") + 1));
                                }
                        }
                }
                return "";
        }
};

/* fix for video streaming bug */
YAHOO.deconcept.SWFObjectUtil.cleanupSWFs = function()
{
        var objects = document.getElementsByTagName("OBJECT");
        for(var i = objects.length - 1; i >= 0; i--)
        {
                objects[i].style.display = 'none';
                for(var x in objects[i])
                {
                        if(typeof objects[i][x] == 'function')
                        {
                                objects[i][x] = function(){};
                        }
                }
        }
};

// fixes bug in some fp9 versions see http://blog.deconcept.com/2006/07/28/swfobject-143-released/
if(YAHOO.deconcept.SWFObject.doPrepUnload)
{
        if(!YAHOO.deconcept.unloadSet)
        {
                YAHOO.deconcept.SWFObjectUtil.prepUnload = function()
                {
                        __flash_unloadHandler = function(){};
                        __flash_savedUnloadHandler = function(){};
                        window.attachEvent("onunload", YAHOO.deconcept.SWFObjectUtil.cleanupSWFs);
                };
                window.attachEvent("onbeforeunload", YAHOO.deconcept.SWFObjectUtil.prepUnload);
                YAHOO.deconcept.unloadSet = true;
        }
}

/* add document.getElementById if needed (mobile IE < 5) */
if(!document.getElementById && document.all)
{
        document.getElementById = function(id) { return document.all[id]; };
}
/**
 * Wraps Flash embedding functionality and allows communication with SWF through
 * attributes.
 *
 * @namespace YAHOO.widget
 * @class FlashAdapter
 * @uses YAHOO.util.AttributeProvider
 */
YAHOO.widget.FlashAdapter = function(swfURL, containerID, attributes, buttonSkin)
{
        
        this._queue = this._queue || [];
        this._events = this._events || {};
        this._configs = this._configs || {};
        attributes = attributes || {};
        
        //the Flash Player external interface code from Adobe doesn't play nicely
        //with the default value, yui-gen, in IE
        this._id = attributes.id = attributes.id || YAHOO.util.Dom.generateId(null, "yuigen");
        attributes.version = attributes.version || "9.0.45";
        attributes.backgroundColor = attributes.backgroundColor || "#ffffff";
        
        //we can't use the initial attributes right away
        //so save them for once the SWF finishes loading
        this._attributes = attributes;
        
        this._swfURL = swfURL;
        this._containerID = containerID;
        
        //embed the SWF file in the page
        this._embedSWF(this._swfURL, this._containerID, attributes.id, attributes.version,
                attributes.backgroundColor, attributes.expressInstall, attributes.wmode, buttonSkin);
        
        /**
         * Fires when the SWF is initialized and communication is possible.
         * @event contentReady
         */
        //Fix for iframe cross-domain issue with FF2x 
        try
        {
                this.createEvent("contentReady");
        }
        catch(e){}
};

YAHOO.widget.FlashAdapter.owners = YAHOO.widget.FlashAdapter.owners || {};

YAHOO.extend(YAHOO.widget.FlashAdapter, YAHOO.util.AttributeProvider,
{
        /**
         * The URL of the SWF file.
         * @property _swfURL
         * @type String
         * @private
         */
        _swfURL: null,

        /**
         * The ID of the containing DIV.
         * @property _containerID
         * @type String
         * @private
         */
        _containerID: null,

        /**
         * A reference to the embedded SWF file.
         * @property _swf
         * @private
         */
        _swf: null,

        /**
         * The id of this instance.
         * @property _id
         * @type String
         * @private
         */
        _id: null,

        /**
         * Indicates whether the SWF has been initialized and is ready
         * to communicate with JavaScript
         * @property _initialized
         * @type Boolean
         * @private
         */
        _initialized: false,
        
        /**
         * The initializing attributes are stored here until the SWF is ready.
         * @property _attributes
         * @type Object
         * @private
         */
        _attributes: null, //the intializing attributes

        /**
         * Public accessor to the unique name of the FlashAdapter instance.
         *
         * @method toString
         * @return {String} Unique name of the FlashAdapter instance.
         */
        toString: function()
        {
                return "FlashAdapter " + this._id;
        },

        /**
         * Nulls out the entire FlashAdapter instance and related objects and removes attached
         * event listeners and clears out DOM elements inside the container. After calling
         * this method, the instance reference should be expliclitly nulled by implementer,
         * as in myChart = null. Use with caution!
         *
         * @method destroy
         */
        destroy: function()
        {
                //kill the Flash Player instance
                if(this._swf)
                {
                        var container = YAHOO.util.Dom.get(this._containerID);
                        container.removeChild(this._swf);
                }
                
                var instanceName = this._id;
                
                //null out properties
                for(var prop in this)
                {
                        if(YAHOO.lang.hasOwnProperty(this, prop))
                        {
                                this[prop] = null;
                        }
                }
                
        },

        /**
         * Embeds the SWF in the page and associates it with this instance.
         *
         * @method _embedSWF
         * @private
         */
        _embedSWF: function(swfURL, containerID, swfID, version, backgroundColor, expressInstall, wmode, buttonSkin)
        {
                //standard SWFObject embed
                var swfObj = new YAHOO.deconcept.SWFObject(swfURL, swfID, "100%", "100%", version, backgroundColor);

                if(expressInstall)
                {
                        swfObj.useExpressInstall(expressInstall);
                }

                //make sure we can communicate with ExternalInterface
                swfObj.addParam("allowScriptAccess", "always");
                
                if(wmode)
                {
                        swfObj.addParam("wmode", wmode);
                }
                
                swfObj.addParam("menu", "false");
                
                //again, a useful ExternalInterface trick
                swfObj.addVariable("allowedDomain", document.location.hostname);

                //tell the SWF which HTML element it is in
                swfObj.addVariable("YUISwfId", swfID);

                // set the name of the function to call when the swf has an event
                swfObj.addVariable("YUIBridgeCallback", "YAHOO.widget.FlashAdapter.eventHandler");
                if (buttonSkin) {
                swfObj.addVariable("buttonSkin", buttonSkin);
                }
                var container = YAHOO.util.Dom.get(containerID);
                var result = swfObj.write(container);
                if(result)
                {
                        this._swf = YAHOO.util.Dom.get(swfID);
                        YAHOO.widget.FlashAdapter.owners[swfID] = this;
                }
                else
                {
                }
        },

        /**
         * Handles or re-dispatches events received from the SWF.
         *
         * @method _eventHandler
         * @private
         */
        _eventHandler: function(event)
        {
                var type = event.type;
                switch(type)
                {
                        case "swfReady":
                                this._loadHandler();
                                return;
                        case "log":
                                return;
                }
                
                
                //be sure to return after your case or the event will automatically fire!
                this.fireEvent(type, event);
        },

        /**
         * Called when the SWF has been initialized.
         *
         * @method _loadHandler
         * @private
         */
        _loadHandler: function()
        {
                this._initialized = false;
                this._initAttributes(this._attributes);
                this.setAttributes(this._attributes, true);
                
                this._initialized = true;
                this.fireEvent("contentReady");
        },
        
        set: function(name, value)
        {
                //save all the attributes in case the swf reloads
                //so that we can pass them in again
                this._attributes[name] = value;
                YAHOO.widget.FlashAdapter.superclass.set.call(this, name, value);
        },
        
        /**
         * Initializes the attributes.
         *
         * @method _initAttributes
         * @private
         */
        _initAttributes: function(attributes)
        {
                //should be overridden if other attributes need to be set up

                /**
                 * @attribute wmode
                 * @description Sets the window mode of the Flash Player control. May be
                 *              "window", "opaque", or "transparent". Only available in the constructor
                 *              because it may not be set after Flash Player has been embedded in the page.
                 * @type String
                 */
                 
                /**
                 * @attribute expressInstall
                 * @description URL pointing to a SWF file that handles Flash Player's express
                 *              install feature. Only available in the constructor because it may not be
                 *              set after Flash Player has been embedded in the page.
                 * @type String
                 */

                /**
                 * @attribute version
                 * @description Minimum required version for the SWF file. Only available in the constructor because it may not be
                 *              set after Flash Player has been embedded in the page.
                 * @type String
                 */

                /**
                 * @attribute backgroundColor
                 * @description The background color of the SWF. Only available in the constructor because it may not be
                 *              set after Flash Player has been embedded in the page.
                 * @type String
                 */
                 
                /**
                 * @attribute altText
                 * @description The alternative text to provide for screen readers and other assistive technology.
                 * @type String
                 */
                this.getAttributeConfig("altText",
                {
                        method: this._getAltText
                });
                this.setAttributeConfig("altText",
                {
                        method: this._setAltText
                });
                
                /**
                 * @attribute swfURL
                 * @description Absolute or relative URL to the SWF displayed by the FlashAdapter. Only available in the constructor because it may not be
                 *              set after Flash Player has been embedded in the page.
                 * @type String
                 */
                this.getAttributeConfig("swfURL",
                {
                        method: this._getSWFURL
                });
        },
        
        /**
         * Getter for swfURL attribute.
         *
         * @method _getSWFURL
         * @private
         */
        _getSWFURL: function()
        {
                return this._swfURL;
        },
        
        /**
         * Getter for altText attribute.
         *
         * @method _getAltText
         * @private
         */
        _getAltText: function()
        {
                return this._swf.getAltText();
        },

        /**
         * Setter for altText attribute.
         *
         * @method _setAltText
         * @private
         */
        _setAltText: function(value)
        {
                return this._swf.setAltText(value);
        }
});


/**
 * Receives event messages from SWF and passes them to the correct instance
 * of FlashAdapter.
 *
 * @method YAHOO.widget.FlashAdapter.eventHandler
 * @static
 * @private
 */
YAHOO.widget.FlashAdapter.eventHandler = function(elementID, event)
{

        if(!YAHOO.widget.FlashAdapter.owners[elementID])
        {
                //fix for ie: if owner doesn't exist yet, try again in a moment
                setTimeout(function() { YAHOO.widget.FlashAdapter.eventHandler( elementID, event ); }, 0);
        }
        else
        {
                YAHOO.widget.FlashAdapter.owners[elementID]._eventHandler(event);
        }
};

/**
 * The number of proxy functions that have been created.
 * @static
 * @private
 */
YAHOO.widget.FlashAdapter.proxyFunctionCount = 0;

/**
 * Creates a globally accessible function that wraps a function reference.
 * Returns the proxy function's name as a string for use by the SWF through
 * ExternalInterface.
 *
 * @method YAHOO.widget.FlashAdapter.createProxyFunction
 * @static
 * @private
 */
YAHOO.widget.FlashAdapter.createProxyFunction = function(func)
{
        var index = YAHOO.widget.FlashAdapter.proxyFunctionCount;
        YAHOO.widget.FlashAdapter["proxyFunction" + index] = function()
        {
                return func.apply(null, arguments);
        };
        YAHOO.widget.FlashAdapter.proxyFunctionCount++;
        return "YAHOO.widget.FlashAdapter.proxyFunction" + index.toString();
};

/**
 * Removes a function created with createProxyFunction()
 * 
 * @method YAHOO.widget.FlashAdapter.removeProxyFunction
 * @static
 * @private
 */
YAHOO.widget.FlashAdapter.removeProxyFunction = function(funcName)
{
        //quick error check
        if(!funcName || funcName.indexOf("YAHOO.widget.FlashAdapter.proxyFunction") < 0)
        {
                return;
        }
        
        funcName = funcName.substr(26);
        YAHOO.widget.FlashAdapter[funcName] = null;
};
/**
 * The YUI Uploader Control
 * @module uploader
 * @description <p>YUI Uploader provides file upload functionality that goes beyond the basic browser-based methods. 
 * Specifically, the YUI Uploader allows for:
 * <ol>
 * <li> Multiple file selection in a single "Open File" dialog.</li>
 * <li> File extension filters to facilitate the user's selection.</li>
 * <li> Progress tracking for file uploads.</li>
 * <li> A range of file metadata: filename, size, date created, date modified, and author.</li>
 * <li> A set of events dispatched on various aspects of the file upload process: file selection, upload progress, upload completion, etc.</li>
 * <li> Inclusion of additional data in the file upload POST request.</li>
 * <li> Faster file upload on broadband connections due to the modified SEND buffer size.</li>
 * <li> Same-page server response upon completion of the file upload.</li>
 * </ol>
 * </p>
 * @title Uploader
 * @namespace YAHOO.widget
 * @requires yahoo, dom, element, event
 */
/**
 * Uploader class for the YUI Uploader component.
 *
 * @namespace YAHOO.widget
 * @class Uploader
 * @uses YAHOO.widget.FlashAdapter
 * @constructor
 * @param containerId {HTMLElement} Container element for the Flash Player instance.
 * @param buttonSkin {String} [optional]. If defined, the uploader is 
 * rendered as a button. This parameter must provide the URL of a button
 * skin sprite image. Acceptable types are: jpg, gif, png and swf. The 
 * sprite is divided evenly into four sections along its height (e.g., if
 * the sprite is 200 px tall, it's divided into four sections 50px each).
 * Each section is used as a skin for a specific state of the button: top
 * section is "up", second section is "over", third section is "down", and
 * fourth section is "disabled". 
 * If the parameter is not supplied, the uploader is rendered transparent,
 * and it's the developer's responsibility to create a visible UI below it.
 * @param forceTransparent {Boolean} This parameter, if true, forces the Flash
 * UI to be rendered with wmode set to "transparent". This behavior is useful 
 * in conjunction with non-rectangular button skins with PNG transparency. 
 * The parameter is false by default, and ignored if no buttonSkin is defined.
  */
YAHOO.widget.Uploader = function(containerId, buttonSkin, forceTransparent)
{
        var newWMode = "window";

        if (!(buttonSkin) || (buttonSkin && forceTransparent)) {
                newWMode = "transparent";
        }

        
        YAHOO.widget.Uploader.superclass.constructor.call(this, YAHOO.widget.Uploader.SWFURL, containerId, {wmode:newWMode}, buttonSkin);

        /**
         * Fires when the mouse is pressed over the Uploader.
         * Only fires when the Uploader UI is enabled and
         * the render type is 'transparent'.
         *
         * @event mouseDown
         * @param event.type {String} The event type
         */
        this.createEvent("mouseDown");
        
        /**
         * Fires when the mouse is released over the Uploader.
         * Only fires when the Uploader UI is enabled and
         * the render type is 'transparent'.
         *
         * @event mouseUp
         * @param event.type {String} The event type
         */
        this.createEvent("mouseUp");

        /**
         * Fires when the mouse rolls over the Uploader.
         *
         * @event rollOver
         * @param event.type {String} The event type
         */
        this.createEvent("rollOver");
        
        /**
         * Fires when the mouse rolls out of the Uploader.
         *
         * @event rollOut
         * @param event.type {String} The event type
         */
        this.createEvent("rollOut");
        
        /**
         * Fires when the uploader is clicked.
         *
         * @event click
         * @param event.type {String} The event type
         */
        this.createEvent("click");
        
        /**
         * Fires when the user has finished selecting files in the "Open File" dialog.
         *
         * @event fileSelect
         * @param event.type {String} The event type
         * @param event.fileList {Object} A dictionary of objects with file information
         * @param event.fileList[].size {Number} File size in bytes for a specific file in fileList
         * @param event.fileList[].cDate {Date} Creation date for a specific file in fileList
         * @param event.fileList[].mDate {Date} Modification date for a specific file in fileList
         * @param event.fileList[].name {String} File name for a specific file in fileList
         * @param event.fileList[].id {String} Unique file id of a specific file in fileList
         */
        this.createEvent("fileSelect");

        /**
         * Fires when an upload of a specific file has started.
         *
         * @event uploadStart
         * @param event.type {String} The event type
         * @param event.id {String} The id of the file that's started to upload
         */
        this.createEvent("uploadStart");

        /**
         * Fires when new information about the upload progress for a specific file is available.
         *
         * @event uploadProgress
         * @param event.type {String} The event type
         * @param event.id {String} The id of the file with which the upload progress data is associated
         * @param bytesLoaded {Number} The number of bytes of the file uploaded so far
         * @param bytesTotal {Number} The total size of the file
         */
        this.createEvent("uploadProgress");
        
        /**
         * Fires when an upload for a specific file is cancelled.
         *
         * @event uploadCancel
         * @param event.type {String} The event type
         * @param event.id {String} The id of the file with which the upload has been cancelled.
         */     
        this.createEvent("uploadCancel");

        /**
         * Fires when an upload for a specific file is complete.
         *
         * @event uploadComplete
         * @param event.type {String} The event type
         * @param event.id {String} The id of the file for which the upload has been completed.
         */     
        this.createEvent("uploadComplete");

        /**
         * Fires when the server sends data in response to a completed upload.
         *
         * @event uploadCompleteData
         * @param event.type {String} The event type
         * @param event.id {String} The id of the file for which the upload has been completed.
         * @param event.data {String} The raw data returned by the server in response to the upload.
         */     
        this.createEvent("uploadCompleteData");
        
        /**
         * Fires when an upload error occurs.
         *
         * @event uploadError
         * @param event.type {String} The event type
         * @param event.id {String} The id of the file that was being uploaded when the error has occurred.
         * @param event.status {String} The status message associated with the error.
         */     
        this.createEvent("uploadError");
}

/**
 * Location of the Uploader SWF
 *
 * @property Chart.SWFURL
 * @private
 * @static
 * @final
 * @default "assets/uploader.swf"
 */
YAHOO.widget.Uploader.SWFURL = "assets/uploader.swf";

YAHOO.extend(YAHOO.widget.Uploader, YAHOO.widget.FlashAdapter,
{       
/**
 * Starts the upload of the file specified by fileID to the location specified by uploadScriptPath.
 *
 * @param fileID {String} The id of the file to start uploading.
 * @param uploadScriptPath {String} The URL of the upload location.
 * @param method {String} Either "GET" or "POST", specifying how the variables accompanying the file upload POST request should be submitted. "GET" by default.
 * @param vars {Object} The object containing variables to be sent in the same request as the file upload.
 * @param fieldName {String} The name of the variable in the POST request containing the file data. "Filedata" by default.
 * </code> 
 */
        upload: function(fileID, uploadScriptPath, method, vars, fieldName)
        {
                this._swf.upload(fileID, uploadScriptPath, method, vars, fieldName);
        },
        
/**
 * Starts the upload of the files specified by fileIDs, or adds them to a currently running queue. The upload queue is automatically managed.
 *
 * @param fileIDs {Array} The ids of the files to start uploading.
 * @param uploadScriptPath {String} The URL of the upload location.
 * @param method {String} Either "GET" or "POST", specifying how the variables accompanying the file upload POST request should be submitted. "GET" by default.
 * @param vars {Object} The object containing variables to be sent in the same request as the file upload.
 * @param fieldName {String} The name of the variable in the POST request containing the file data. "Filedata" by default.
 * </code> 
 */
        uploadThese: function(fileIDs, uploadScriptPath, method, vars, fieldName)
        {
                this._swf.uploadThese(fileIDs, uploadScriptPath, method, vars, fieldName);
        },
        
/**
 * Starts uploading all files in the queue. If this function is called, the upload queue is automatically managed.
 *
 * @param uploadScriptPath {String} The URL of the upload location.
 * @param method {String} Either "GET" or "POST", specifying how the variables accompanying the file upload POST request should be submitted. "GET" by default.
 * @param vars {Object} The object containing variables to be sent in the same request as the file upload.
 * @param fieldName {String} The name of the variable in the POST request containing the file data. "Filedata" by default.
 * </code> 
 */
        uploadAll: function(uploadScriptPath, method, vars, fieldName)
        {
                this._swf.uploadAll(uploadScriptPath, method, vars, fieldName);
        },

/**
 * Cancels the upload of a specified file. If no file id is specified, all ongoing uploads are cancelled.
 *
 * @param fileID {String} The ID of the file whose upload should be cancelled.
 */
        cancel: function(fileID)
        {
                this._swf.cancel(fileID);
        },

/**
 * Clears the list of files queued for upload.
 *
 */
        clearFileList: function()
        {
                this._swf.clearFileList();
        },
        
/**
 * Removes the specified file from the upload queue. 
 *
 * @param fileID {String} The id of the file to remove from the upload queue. 
 */
        removeFile: function (fileID) 
        {
                this._swf.removeFile(fileID);
        },

/**
 * Turns the logging functionality on.
 * Uses Flash internal trace logging, as well as YUI Logger, if available.
 *
 * @param allowLogging {Boolean} If true, logs are output; otherwise, no logs are produced.
 */
    setAllowLogging: function (allowLogging)
    {
        this._swf.setAllowLogging(allowLogging);
    },

/**
 * Sets the number of simultaneous uploads when using uploadAll()
 * The minimum value is 1, and maximum value is 5. The default value is 2.
 *
 * @param simUploadLimit {int} Number of simultaneous uploads, between 1 and 5.
 */
    setSimUploadLimit : function (simUploadLimit)
    {
       this._swf.setSimUploadLimit(simUploadLimit);
    },

/**
 * Sets the flag allowing users to select multiple files for the upload.
 *
 * @param allowMultipleFiles {Boolean} If true, multiple files can be selected. False by default.
 */     
    setAllowMultipleFiles : function (allowMultipleFiles) 
    {
       this._swf.setAllowMultipleFiles(allowMultipleFiles);
    },

/**
 * Sets the file filters for the "Browse" dialog.
 *
 *  @param newFilterArray An array of sets of key-value pairs of the form
 *  {extensions: extensionString, description: descriptionString, [optional]macType: macTypeString}
 *  The extensions string is a semicolon-delimited list of elements of the form "*.xxx", 
 *  e.g. "*.jpg;*.gif;*.png". 
 */       
    setFileFilters : function (fileFilters) 
    {
       this._swf.setFileFilters(fileFilters);
    },

        /**
         * Enables the mouse events on the Uploader.
         * If the uploader is being rendered as a button,
         * then the button's skin is set to "up"
         * (first section of the button skin sprite).
         *
         */
        enable : function ()
        {
                this._swf.enable();
        },

        /**
         * Disables the mouse events on the Uploader.
         * If the uploader is being rendered as a button,
         * then the button's skin is set to "disabled"
         * (fourth section of the button skin sprite).
         *
         */
        disable : function () 
        {
                this._swf.disable();
        }
});
YAHOO.register("uploader", YAHOO.widget.Uploader, {version: "2.9.0", build: "2800"});

}, '2.9.0' ,{"requires": ["yui2-yahoo", "yui2-dom", "yui2-event", "yui2-element"]});