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✏️ Editing: uploader-flash.js

YUI.add('uploader-flash', function (Y, NAME) {

/**
* This module provides a UI for file selection and multiple file upload capability using
* Flash as a transport engine.
* The supported features include: automatic upload queue management, upload progress
* tracking, file filtering, server response retrieval and error reporting.
*
* @module uploader-flash
* @deprecated
*/

// Shorthands for external modules
var substitute            = Y.Lang.sub,
    UploaderQueue         = Y.Uploader.Queue;

/**
 * Embed a Flash applications in a standard manner and communicate with it
 * via External Interface.
 * @module swf
 */

var Event = Y.Event,
        SWFDetect = Y.SWFDetect,
        Lang = Y.Lang,
        uA = Y.UA,
        Node = Y.Node,
        Escape = Y.Escape,

// private
        FLASH_CID = "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000",
        FLASH_TYPE = "application/x-shockwave-flash",
        FLASH_VER = "10.0.22",
        EXPRESS_INSTALL_URL = "http://fpdownload.macromedia.com/pub/flashplayer/update/current/swf/autoUpdater.swf?" + Math.random(),
        EVENT_HANDLER = "SWF.eventHandler",
        possibleAttributes = {align:"", allowFullScreen:"", allowNetworking:"", allowScriptAccess:"", base:"", bgcolor:"", loop:"", menu:"", name:"", play: "", quality:"", salign:"", scale:"", tabindex:"", wmode:""};

/**
         * The SWF utility is a tool for embedding Flash applications in HTML pages.
         * @module swf
         * @title SWF Utility
         * @requires event-custom, node, swfdetect
         */

/**
         * Creates the SWF instance and keeps the configuration data
         *
         * @class SWF
         * @uses Y.Event.Target
         * @constructor
         * @param {String|HTMLElement} id The id of the element, or the element itself that the SWF will be inserted into.
         *        The width and height of the SWF will be set to the width and height of this container element.
         * @param {String} swfURL The URL of the SWF to be embedded into the page.
         * @param {Object} p_oAttributes (optional) Configuration parameters for the Flash application and values for Flashvars
         *        to be passed to the SWF. The p_oAttributes object allows the following additional properties:
         *        <dl>
         *          <dt>version : String</dt>
         *          <dd>The minimum version of Flash required on the user's machine.</dd>
         *          <dt>fixedAttributes : Object</dt>
         *          <dd>An object literal containing one or more of the following String keys and their values: <code>align,
         *              allowFullScreen, allowNetworking, allowScriptAccess, base, bgcolor, menu, name, quality, salign, scale,
         *              tabindex, wmode.</code> event from the thumb</dd>
         *        </dl>
         */

function SWF (p_oElement /*:String*/, swfURL /*:String*/, p_oAttributes /*:Object*/ ) {

this._id = Y.guid("yuiswf");

var _id = this._id;
    var oElement = Node.one(p_oElement);

var p_oAttributes = p_oAttributes || {};

var flashVersion = p_oAttributes.version || FLASH_VER;

var flashVersionSplit = (flashVersion + '').split(".");
    var isFlashVersionRight = SWFDetect.isFlashVersionAtLeast(parseInt(flashVersionSplit[0], 10), parseInt(flashVersionSplit[1], 10), parseInt(flashVersionSplit[2], 10));
    var canExpressInstall = (SWFDetect.isFlashVersionAtLeast(8,0,0));
    var shouldExpressInstall = canExpressInstall && !isFlashVersionRight && p_oAttributes.useExpressInstall;
    var flashURL = (shouldExpressInstall)?EXPRESS_INSTALL_URL:swfURL;
    var objstring = '<object ';
    var w, h;
    var flashvarstring = "yId=" + Y.id + "&YUISwfId=" + _id + "&YUIBridgeCallback=" + EVENT_HANDLER + "&allowedDomain=" + document.location.hostname;

Y.SWF._instances[_id] = this;
    if (oElement && (isFlashVersionRight || shouldExpressInstall) && flashURL) {
        objstring += 'id="' + _id + '" ';
        if (uA.ie) {
            objstring += 'classid="' + FLASH_CID + '" ';
        } else {
            objstring += 'type="' + FLASH_TYPE + '" data="' + Escape.html(flashURL) + '" ';
        }

w = "100%";
        h = "100%";

objstring += 'width="' + w + '" height="' + h + '">';

if (uA.ie) {
            objstring += '<param name="movie" value="' + Escape.html(flashURL) + '"/>';
        }

for (var attribute in p_oAttributes.fixedAttributes) {
            if (possibleAttributes.hasOwnProperty(attribute)) {
                objstring += '<param name="' + Escape.html(attribute) + '" value="' + Escape.html(p_oAttributes.fixedAttributes[attribute]) + '"/>';
            }
        }

for (var flashvar in p_oAttributes.flashVars) {
            var fvar = p_oAttributes.flashVars[flashvar];
            if (Lang.isString(fvar)) {
                flashvarstring += "&" + Escape.html(flashvar) + "=" + Escape.html(encodeURIComponent(fvar));
            }
        }

if (flashvarstring) {
            objstring += '<param name="flashVars" value="' + flashvarstring + '"/>';
        }

objstring += "</object>";
        //using innerHTML as setHTML/setContent causes some issues with ExternalInterface for IE versions of the player
        oElement.set("innerHTML", objstring);

this._swf = Node.one("#" + _id);
    } else {
        /**
         * Fired when the Flash player version on the user's machine is
         * below the required value.
         *
         * @event wrongflashversion
         */
        var event = {};
        event.type = "wrongflashversion";
        this.publish("wrongflashversion", {fireOnce:true});
        this.fire("wrongflashversion", event);
    }
}

/**
 * @private
 * The static collection of all instances of the SWFs on the page.
 * @property _instances
 * @type Object
 */

SWF._instances = SWF._instances || {};

/**
 * @private
 * Handles an event coming from within the SWF and delegate it
 * to a specific instance of SWF.
 * @method eventHandler
 * @param swfid {String} the id of the SWF dispatching the event
 * @param event {Object} the event being transmitted.
 */
SWF.eventHandler = function (swfid, event) {
    SWF._instances[swfid]._eventHandler(event);
};

SWF.prototype = {
    /**
     * @private
     * Propagates a specific event from Flash to JS.
     * @method _eventHandler
     * @param event {Object} The event to be propagated from Flash.
     */
    _eventHandler: function(event) {
        if (event.type === "swfReady") {
            this.publish("swfReady", {fireOnce:true});
            this.fire("swfReady", event);
        } else if(event.type === "log") {
        } else {
            this.fire(event.type, event);
        }
    },

/**
     * Calls a specific function exposed by the SWF's
     * ExternalInterface.
     * @method callSWF
     * @param func {String} the name of the function to call
     * @param args {Array} the set of arguments to pass to the function.
     */

callSWF: function (func, args)
    {
    if (!args) {
          args= [];
    }
        if (this._swf._node[func]) {
        return(this._swf._node[func].apply(this._swf._node, args));
        } else {
        return null;
        }
    },

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

Y.augment(SWF, Y.EventTarget);

Y.SWF = SWF;
    /**
     * The FileFlash class provides a wrapper for a file pointer stored in Flash. The File wrapper
     * also implements the mechanics for uploading a file and tracking its progress.
     * @module file-flash
     */
    /**
     * The class provides a wrapper for a file pointer in Flash.
     * @class FileFlash
     * @extends Base
     * @constructor
     * @param {Object} config Configuration object.
     */

var FileFlash = function(o) {
        FileFlash.superclass.constructor.apply(this, arguments);
    };

Y.extend(FileFlash, Y.Base, {

/**
        * Construction logic executed during FileFlash instantiation.
        *
        * @method initializer
        * @protected
        */
        initializer : function (cfg) {
            if (!this.get("id")) {
                this._set("id", Y.guid("file"));
            }
        },

/**
        * Handler of events dispatched by the Flash player.
        *
        * @method _swfEventHandler
        * @param {Event} event The event object received from the Flash player.
        * @protected
        */
        _swfEventHandler: function (event) {
          if (event.id === this.get("id")) {
          switch (event.type) {
            /**
             * Signals that this file's upload has started.
             *
             * @event uploadstart
             * @param event {Event} The event object for the `uploadstart` with the
             *                      following payload:
             *  <dl>
             *      <dt>uploader</dt>
             *          <dd>The Y.SWF instance of Flash uploader that's handling the upload.</dd>
             *  </dl>
             */
            case "uploadstart":
                 this.fire("uploadstart", {uploader: this.get("uploader")});
                 break;
            case "uploadprogress":

/**
                   * Signals that progress has been made on the upload of this file.
                   *
                   * @event uploadprogress
                   * @param event {Event} The event object for the `uploadprogress` with the
                   *                      following payload:
                   *  <dl>
                   *      <dt>originEvent</dt>
                   *          <dd>The original event fired by the Flash uploader instance.</dd>
                   *      <dt>bytesLoaded</dt>
                   *          <dd>The number of bytes of the file that has been uploaded.</dd>
                   *      <dt>bytesTotal</dt>
                   *          <dd>The total number of bytes in the file (the file size)</dd>
                   *      <dt>percentLoaded</dt>
                   *          <dd>The fraction of the file that has been uploaded, out of 100.</dd>
                   *  </dl>
                   */
                 this.fire("uploadprogress", {originEvent: event,
                                              bytesLoaded: event.bytesLoaded,
                                              bytesTotal: event.bytesTotal,
                                              percentLoaded: Math.min(100, Math.round(10000*event.bytesLoaded/event.bytesTotal)/100)
                                             });
                 this._set("bytesUploaded", event.bytesLoaded);
                 break;
            case "uploadcomplete":

/**
                   * Signals that this file's upload has completed, but data has not yet been received from the server.
                   *
                   * @event uploadfinished
                   * @param event {Event} The event object for the `uploadfinished` with the
                   *                      following payload:
                   *  <dl>
                   *      <dt>originEvent</dt>
                   *          <dd>The original event fired by the Flash player instance.</dd>
                   *  </dl>
                   */
                 this.fire("uploadfinished", {originEvent: event});
                 break;
            case "uploadcompletedata":
                /**
                 * Signals that this file's upload has completed and data has been received from the server.
                 *
                 * @event uploadcomplete
                 * @param event {Event} The event object for the `uploadcomplete` with the
                 *                      following payload:
                 *  <dl>
                 *      <dt>originEvent</dt>
                 *          <dd>The original event fired by the Flash player instance.</dd>
                 *      <dt>data</dt>
                 *          <dd>The data returned by the server.</dd>
                 *  </dl>
                 */
                 this.fire("uploadcomplete", {originEvent: event,
                                              data: event.data});
                 break;
            case "uploadcancel":

/**
                 * Signals that this file's upload has been cancelled.
                 *
                 * @event uploadcancel
                 * @param event {Event} The event object for the `uploadcancel` with the
                 *                      following payload:
                 *  <dl>
                 *      <dt>originEvent</dt>
                 *          <dd>The original event fired by the Flash player instance.</dd>
                 *  </dl>
                 */
                 this.fire("uploadcancel", {originEvent: event});
                 break;
            case "uploaderror":

/**
                 * Signals that this file's upload has encountered an error.
                 *
                 * @event uploaderror
                 * @param event {Event} The event object for the `uploaderror` with the
                 *                      following payload:
                 *  <dl>
                 *      <dt>originEvent</dt>
                 *          <dd>The original event fired by the Flash player instance.</dd>
                 *      <dt>status</dt>
                 *          <dd>The status code reported by the Flash Player. If it's an HTTP error,
                 *                then this corresponds to the HTTP status code received by the uploader.</dd>
                 *      <dt>statusText</dt>
                 *          <dd>The text of the error event reported by the Flash Player.</dd>
                 *      <dt>source</dt>
                 *          <dd>Either "http" (if it's an HTTP error), or "io" (if it's a network transmission
                 *              error.)</dd>
                 *  </dl>
                 */
                 this.fire("uploaderror", {originEvent: event, status: event.status, statusText: event.message, source: event.source});

}
        }
        },

/**
        * Starts the upload of a specific file.
        *
        * @method startUpload
        * @param url {String} The URL to upload the file to.
        * @param parameters {Object} (optional) A set of key-value pairs to send as variables along with the file upload HTTP request.
        * @param fileFieldName {String} (optional) The name of the POST variable that should contain the uploaded file ('Filedata' by default)
        */
        startUpload: function(url, parameters, fileFieldName) {

if (this.get("uploader")) {

var myUploader = this.get("uploader"),
                fileField = fileFieldName || "Filedata",
                id = this.get("id"),
                params = parameters || null;

this._set("bytesUploaded", 0);

myUploader.on("uploadstart", this._swfEventHandler, this);
            myUploader.on("uploadprogress", this._swfEventHandler, this);
            myUploader.on("uploadcomplete", this._swfEventHandler, this);
            myUploader.on("uploadcompletedata", this._swfEventHandler, this);
            myUploader.on("uploaderror", this._swfEventHandler, this);

myUploader.callSWF("upload", [id, url, params, fileField]);
         }

/**
        * Cancels the upload of a specific file, if currently in progress.
        *
        * @method cancelUpload
        */
        cancelUpload: function () {
         if (this.get("uploader")) {
           this.get("uploader").callSWF("cancel", [this.get("id")]);
           this.fire("uploadcancel");
         }
        }

}, {

/**
        * The identity of the class.
        *
        * @property NAME
        * @type String
        * @default 'file'
        * @readOnly
        * @protected
        * @static
        */
        NAME: 'file',

/**
        * The type of transport.
        *
        * @property TYPE
        * @type String
        * @default 'flash'
        * @readOnly
        * @protected
        * @static
        */
        TYPE: "flash",

/**
        * Static property used to define the default attribute configuration of
        * the File.
        *
        * @property ATTRS
        * @type {Object}
        * @protected
        * @static
        */
        ATTRS: {

/**
        * A String containing the unique id of the file wrapped by the FileFlash instance.
        * The id is supplied by the Flash player uploader.
        *
        * @attribute id
        * @type {String}
        * @initOnly
        */
        id: {
            writeOnce: "initOnly",
            value: null
        },

/**
        * The size of the file wrapped by FileFlash. This value is supplied by the Flash player uploader.
        *
        * @attribute size
        * @type {Number}
        * @initOnly
        */
        size: {
            writeOnce: "initOnly",
            value: 0
        },

/**
        * The name of the file wrapped by FileFlash. This value is supplied by the Flash player uploader.
        *
        * @attribute name
        * @type {String}
        * @initOnly
        */
        name: {
            writeOnce: "initOnly",
            value: null
        },

/**
        * The date that the file wrapped by FileFlash was created on. This value is supplied by the Flash player uploader.
        *
        * @attribute dateCreated
        * @type {Date}
        * @initOnly
        */
        dateCreated: {
            writeOnce: "initOnly",
            value: null
        },

/**
        * The date that the file wrapped by FileFlash was last modified on. This value is supplied by the Flash player uploader.
        *
        * @attribute dateModified
        * @type {Date}
        * @initOnly
        */
        dateModified: {
            writeOnce: "initOnly",
            value: null
        },

/**
        * The number of bytes of the file that has been uploaded to the server. This value is
        * non-zero only while a file is being uploaded.
        *
        * @attribute bytesUploaded
        * @type {Date}
        * @readOnly
        */
        bytesUploaded: {
            readOnly: true,
            value: 0
        },

/**
        * The type of the file wrapped by FileFlash. This value is provided by the Flash player
        * uploader.
        *
        * @attribute type
        * @type {String}
        * @initOnly
        */
        type: {
            writeOnce: "initOnly",
            value: null
        },

/**
        * The instance of Y.SWF wrapping the Flash player uploader associated with this file.
        *
        * @attribute uploder
        * @type {SWF}
        * @initOnly
        */
        uploader: {
            writeOnce: "initOnly",
            value: null
        }
        }
    });

Y.FileFlash = FileFlash;
/**
* This module provides a UI for file selection and multiple file upload capability
* using Flash as a transport engine.
* @class UploaderFlash
* @extends Widget
* @param {Object} config Configuration object.
* @constructor
* @deprecated
*/

function UploaderFlash() {
    UploaderFlash.superclass.constructor.apply ( this, arguments );
}

Y.UploaderFlash = Y.extend(UploaderFlash, Y.Widget, {

/**
    * Stored value of the current button state (based on
    * mouse events dispatched by the Flash player)
    * @property _buttonState
    * @type {String}
    * @protected
    */
    _buttonState: "up",

/**
    * Stored value of the current button focus state (based
    * on keyboard and mouse events).
    * @property _buttonFocus
    * @type {Boolean}
    * @protected
    */
    _buttonFocus: false,

/**
    * Stored value of the unique id for the container that holds the
    * Flash uploader.
    *
    * @property _swfContainerId
    * @type {String}
    * @protected
    */
    _swfContainerId: null,

/**
    * Stored reference to the instance of SWF used to host the
    * Flash uploader.
    *
    * @property _swfReference
    * @type {SWF}
    * @protected
    */
    _swfReference: null,

/**
    * Stored reference to the instance of Uploader.Queue used to manage
    * the upload process. This is a read-only property that only exists
    * during an active upload process. Only one queue can be active at
    * a time; if an upload start is attempted while a queue is active,
    * it will be ignored.
    *
    * @property queue
    * @type {Uploader.Queue}
    */
    queue: null,

/**
    * Stored event bindings for keyboard navigation to and from the uploader.
    *
    * @property _tabElementBindings
    * @type {Object}
    * @protected
    */
    _tabElementBindings: null,

/**
    * Construction logic executed during UploaderFlash instantiation.
    *
    * @method initializer
    * @protected
    */
    initializer : function () {

// Assign protected variable values
        this._swfContainerId = Y.guid("uploader");
        this._swfReference = null;
        this.queue = null;
        this._buttonState = "up";
        this._buttonFocus = null;
        this._tabElementBindings = null;
        this._fileList = [];

// Publish available events

/**
        * Signals that files have been selected.
        *
        * @event fileselect
        * @param event {Event} The event object for the `fileselect` with the
        *                      following payload:
        *  <dl>
        *      <dt>fileList</dt>
        *          <dd>An `Array` of files selected by the user, encapsulated
        *              in Y.FileFlash objects.</dd>
        *  </dl>
        */
        this.publish("fileselect");

/**
        * Signals that an upload of multiple files has been started.
        *
        * @event uploadstart
        * @param event {Event} The event object for the `uploadstart`.
        */
        this.publish("uploadstart");

/**
        * Signals that an upload of a specific file has started.
        *
        * @event fileuploadstart
        * @param event {Event} The event object for the `fileuploadstart` with the
        *                      following payload:
        *  <dl>
        *      <dt>file</dt>
        *          <dd>A reference to the Y.File that dispatched the event.</dd>
        *      <dt>originEvent</dt>
        *          <dd>The original event dispatched by Y.File.</dd>
        *  </dl>
        */
        this.publish("fileuploadstart");

/**
        * Reports on upload progress of a specific file.
        *
        * @event uploadprogress
        * @param event {Event} The event object for the `uploadprogress` with the
        *                      following payload:
        *  <dl>
        *      <dt>bytesLoaded</dt>
        *          <dd>The number of bytes of the file that has been uploaded</dd>
        *      <dt>bytesTotal</dt>
        *          <dd>The total number of bytes in the file</dd>
        *      <dt>percentLoaded</dt>
        *          <dd>The fraction of the file that has been uploaded, out of 100</dd>
        *      <dt>originEvent</dt>
        *          <dd>The original event dispatched by the SWF uploader</dd>
        *  </dl>
        */
        this.publish("uploadprogress");

/**
        * Reports on the total upload progress of the file list.
        *
        * @event totaluploadprogress
        * @param event {Event} The event object for the `totaluploadprogress` with the
        *                      following payload:
        *  <dl>
        *      <dt>bytesLoaded</dt>
        *          <dd>The number of bytes of the file list that has been uploaded</dd>
        *      <dt>bytesTotal</dt>
        *          <dd>The total number of bytes in the file list</dd>
        *      <dt>percentLoaded</dt>
        *          <dd>The fraction of the file list that has been uploaded, out of 100</dd>
        *  </dl>
        */
        this.publish("totaluploadprogress");

/**
        * Signals that a single file upload has been completed.
        *
        * @event uploadcomplete
        * @param event {Event} The event object for the `uploadcomplete` with the
        *                      following payload:
        *  <dl>
        *      <dt>file</dt>
        *          <dd>The pointer to the instance of `Y.File` whose upload has been completed.</dd>
        *      <dt>originEvent</dt>
        *          <dd>The original event fired by the SWF Uploader</dd>
        *      <dt>data</dt>
        *          <dd>Data returned by the server.</dd>
        *  </dl>
        */
        this.publish("uploadcomplete");

/**
        * Signals that the upload process of the entire file list has been completed.
        *
        * @event alluploadscomplete
        * @param event {Event} The event object for the `alluploadscomplete`.
        */
        this.publish("alluploadscomplete");

/**
        * Signals that a error has occurred in a specific file's upload process.
        *
        * @event uploaderror
        * @param event {Event} The event object for the `uploaderror` with the
        *                      following payload:
        *  <dl>
        *      <dt>originEvent</dt>
        *          <dd>The original error event fired by the SWF Uploader. </dd>
        *      <dt>file</dt>
        *          <dd>The pointer at the instance of Y.FileFlash that returned the error.</dd>
        *      <dt>source</dt>
        *          <dd>The source of the upload error, either "io" or "http"</dd>
        *      <dt>message</dt>
        *          <dd>The message that accompanied the error. Corresponds to the text of
        *              the error in cases where source is "io", and to the HTTP status for
                                     cases where source is "http".</dd>
        *  </dl>
        */
        this.publish("uploaderror");

/**
        * Signals that a mouse has begun hovering over the `Select Files` button.
        *
        * @event mouseenter
        * @param event {Event} The event object for the `mouseenter` event.
        */
        this.publish("mouseenter");

/**
        * Signals that a mouse has stopped hovering over the `Select Files` button.
        *
        * @event mouseleave
        * @param event {Event} The event object for the `mouseleave` event.
        */
        this.publish("mouseleave");

/**
        * Signals that a mouse button has been pressed over the `Select Files` button.
        *
        * @event mousedown
        * @param event {Event} The event object for the `mousedown` event.
        */
        this.publish("mousedown");

/**
        * Signals that a mouse button has been released over the `Select Files` button.
        *
        * @event mouseup
        * @param event {Event} The event object for the `mouseup` event.
        */
        this.publish("mouseup");

/**
        * Signals that a mouse has been clicked over the `Select Files` button.
        *
        * @event click
        * @param event {Event} The event object for the `click` event.
        */
        this.publish("click");
    },

/**
    * Creates the DOM structure for the UploaderFlash.
    * UploaderFlash's DOM structure consists of two layers: the base "Select Files"
    * button that can be replaced by the developer's widget of choice; and a transparent
    * Flash overlay positoned above the button that captures all input events.
    * The `position` style attribute of the `boundingBox` of the `Uploader` widget
    * is forced to be `relative`, in order to accommodate the Flash player overlay
    * (which is `position`ed `absolute`ly).
    *
    * @method renderUI
    * @protected
    */
    renderUI : function () {
        var boundingBox = this.get("boundingBox"),
            contentBox = this.get('contentBox'),
            selFilesButton = this.get("selectFilesButton"),
            flashContainer = Y.Node.create(substitute(UploaderFlash.FLASH_CONTAINER, {
                swfContainerId: this._swfContainerId
            })),
            params = {
                version: "10.0.45",
                fixedAttributes: {
                    wmode: "transparent",
                    allowScriptAccess:"always",
                    allowNetworking:"all",
                    scale: "noscale"
                }
            };

boundingBox.setStyle("position", "relative");
        selFilesButton.setStyles({width: "100%", height: "100%"});
        contentBox.append(selFilesButton);
        contentBox.append(flashContainer);

this._swfReference = new Y.SWF(flashContainer, this.get("swfURL"), params);
    },

/**
    * Binds handlers to the UploaderFlash UI events and propagates attribute
    * values to the Flash player.
    * The propagation of initial values is set to occur once the Flash player
    * instance is ready (as indicated by the `swfReady` event.)
    *
    * @method bindUI
    * @protected
    */
    bindUI : function () {

this._swfReference.on("swfReady", function () {
            this._setMultipleFiles();
            this._setFileFilters();
            this._triggerEnabled();
            this._attachTabElements();
            this.after("multipleFilesChange", this._setMultipleFiles, this);
            this.after("fileFiltersChange", this._setFileFilters, this);
            this.after("enabledChange", this._triggerEnabled, this);
            this.after("tabElementsChange", this._attachTabElements);
        }, this);

this._swfReference.on("fileselect", this._updateFileList, this);

// this._swfReference.on("trace", function (ev) {console.log(ev.message);});

this._swfReference.on("mouseenter", function () {
            this.fire("mouseenter");
            this._setButtonClass("hover", true);
            if (this._buttonState === "down") {
                this._setButtonClass("active", true);
            }
        }, this);

this._swfReference.on("mouseleave", function () {
            this.fire("mouseleave");
            this._setButtonClass("hover", false);
            this._setButtonClass("active", false);
        }, this);

this._swfReference.on("mousedown", function () {
            this.fire("mousedown");
            this._buttonState = "down";
            this._setButtonClass("active", true);
        }, this);

this._swfReference.on("mouseup", function () {
            this.fire("mouseup");
            this._buttonState = "up";
            this._setButtonClass("active", false);
        }, this);

this._swfReference.on("click", function () {
            this.fire("click");
            this._buttonFocus = true;
            this._setButtonClass("focus", true);
            Y.one("body").focus();
            this._swfReference._swf.focus();
        }, this);
    },

/**
    * Attaches keyboard bindings to enabling tabbing to and from the instance of the Flash
    * player in the Uploader widget. If the previous and next elements are specified, the
    * keyboard bindings enable the user to tab from the `tabElements["from"]` node to the
    * Flash-powered "Select Files" button, and to the `tabElements["to"]` node.
    *
    * @method _attachTabElements
    * @protected
    * @param ev {Event} Optional event payload if called as a `tabElementsChange` handler.
    */
    _attachTabElements : function () {
        if (this.get("tabElements") !== null && this.get("tabElements").from !== null && this.get("tabElements").to !== null) {

if (this._tabElementBindings !== null) {
                this._tabElementBindings.from.detach();
                this._tabElementBindings.to.detach();
                this._tabElementBindings.tabback.detach();
                this._tabElementBindings.tabforward.detach();
                this._tabElementBindings.focus.detach();
                this._tabElementBindings.blur.detach();
            }
            else {
                this._tabElementBindings = {};
            }

var fromElement = Y.one(this.get("tabElements").from),
                toElement = Y.one(this.get("tabElements").to);

this._tabElementBindings.from = fromElement.on("keydown", function (ev) {
                if (ev.keyCode === 9 && !ev.shiftKey) {
                    ev.preventDefault();
                    this._swfReference._swf.setAttribute("tabindex", 0);
                    this._swfReference._swf.setAttribute("role", "button");
                    this._swfReference._swf.setAttribute("aria-label", this.get("selectButtonLabel"));
                    this._swfReference._swf.focus();
                }
            }, this);

this._tabElementBindings.to = toElement.on("keydown", function (ev) {
                if (ev.keyCode === 9 && ev.shiftKey) {
                    ev.preventDefault();
                    this._swfReference._swf.setAttribute("tabindex", 0);
                    this._swfReference._swf.setAttribute("role", "button");
                    this._swfReference._swf.setAttribute("aria-label", this.get("selectButtonLabel"));
                    this._swfReference._swf.focus();
                }
            }, this);

this._tabElementBindings.tabback = this._swfReference.on("tabback", function () {
                this._swfReference._swf.blur();
                setTimeout(function () {
                    fromElement.focus();
                }, 30);
            }, this);

this._tabElementBindings.tabforward = this._swfReference.on("tabforward", function () {
                this._swfReference._swf.blur();
                setTimeout(function () {
                    toElement.focus();
                }, 30);
            }, this);

this._tabElementBindings.focus = this._swfReference._swf.on("focus", function () {
                this._buttonFocus = true;
                this._setButtonClass("focus", true);
            }, this);

this._tabElementBindings.blur = this._swfReference._swf.on("blur", function () {
                this._buttonFocus = false;
                this._setButtonClass("focus", false);
            }, this);
        }
        else if (this._tabElementBindings !== null) {
            this._tabElementBindings.from.detach();
            this._tabElementBindings.to.detach();
            this._tabElementBindings.tabback.detach();
            this._tabElementBindings.tabforward.detach();
            this._tabElementBindings.focus.detach();
            this._tabElementBindings.blur.detach();
        }
    },

/**
    * Adds or removes a specified state CSS class to the underlying uploader button.
    *
    * @method _setButtonClass
    * @protected
    * @param state {String} The name of the state enumerated in `buttonClassNames` attribute
    * from which to derive the needed class name.
    * @param add {Boolean} A Boolean indicating whether to add or remove the class.
    */
    _setButtonClass : function (state, add) {
        if (add) {
            this.get("selectFilesButton").addClass(this.get("buttonClassNames")[state]);
        }
        else {
            this.get("selectFilesButton").removeClass(this.get("buttonClassNames")[state]);
        }
    },

/**
    * Syncs the state of the `fileFilters` attribute between the instance of UploaderFlash
    * and the Flash player.
    *
    * @method _setFileFilters
    * @private
    */
    _setFileFilters : function () {
        if (this._swfReference && this.get("fileFilters").length > 0) {
            this._swfReference.callSWF("setFileFilters", [this.get("fileFilters")]);
        }
    },

/**
    * Syncs the state of the `multipleFiles` attribute between this class
    * and the Flash uploader.
    *
    * @method _setMultipleFiles
    * @private
    */
    _setMultipleFiles : function () {
        if (this._swfReference) {
            this._swfReference.callSWF("setAllowMultipleFiles", [this.get("multipleFiles")]);
        }
    },

/**
    * Syncs the state of the `enabled` attribute between this class
    * and the Flash uploader.
    *
    * @method _triggerEnabled
    * @private
    */
    _triggerEnabled : function () {
        if (this.get("enabled")) {
            this._swfReference.callSWF("enable");
            this._swfReference._swf.setAttribute("aria-disabled", "false");
            this._setButtonClass("disabled", false);
        }
        else {
            this._swfReference.callSWF("disable");
            this._swfReference._swf.setAttribute("aria-disabled", "true");
            this._setButtonClass("disabled", true);
        }
    },

/**
    * Getter for the `fileList` attribute
    *
    * @method _getFileList
    * @private
    */
    _getFileList : function () {
        return this._fileList.concat();
    },

/**
    * Setter for the `fileList` attribute
    *
    * @method _setFileList
    * @private
    */
    _setFileList : function (val) {
        this._fileList = val.concat();
        return this._fileList.concat();
    },

/**
    * Adjusts the content of the `fileList` based on the results of file selection
    * and the `appendNewFiles` attribute. If the `appendNewFiles` attribute is true,
    * then selected files are appended to the existing list; otherwise, the list is
    * cleared and populated with the newly selected files.
    *
    * @method _updateFileList
    * @param ev {Event} The file selection event received from the uploader.
    * @private
    */
    _updateFileList : function (ev) {

Y.one("body").focus();
        this._swfReference._swf.focus();

var newfiles = ev.fileList,
            fileConfObjects = [],
            parsedFiles = [],
            swfRef = this._swfReference,
            filterFunc = this.get("fileFilterFunction"),
            oldfiles;

Y.each(newfiles, function (value) {
            var newFileConf = {};
            newFileConf.id = value.fileId;
            newFileConf.name = value.fileReference.name;
            newFileConf.size = value.fileReference.size;
            newFileConf.type = value.fileReference.type;
            newFileConf.dateCreated = value.fileReference.creationDate;
            newFileConf.dateModified = value.fileReference.modificationDate;
            newFileConf.uploader = swfRef;

fileConfObjects.push(newFileConf);
        });

if (filterFunc) {
            Y.each(fileConfObjects, function (value) {
                var newfile = new Y.FileFlash(value);
                if (filterFunc(newfile)) {
                    parsedFiles.push(newfile);
                }
            });
         }
         else {
            Y.each(fileConfObjects, function (value) {
                parsedFiles.push(new Y.FileFlash(value));
            });
         }

if (parsedFiles.length > 0) {
            oldfiles = this.get("fileList");

this.set("fileList",
                             this.get("appendNewFiles") ? oldfiles.concat(parsedFiles) : parsedFiles );

this.fire("fileselect", { fileList: parsedFiles });
        }

/**
    * Handles and retransmits events fired by `Y.FileFlash` and `Y.Uploader.Queue`.
    *
    * @method _uploadEventHandler
    * @param event The event dispatched during the upload process.
    * @private
    */
    _uploadEventHandler : function (event) {

switch (event.type) {
            case "file:uploadstart":
                 this.fire("fileuploadstart", event);
                break;
            case "file:uploadprogress":
                 this.fire("uploadprogress", event);
                break;
            case "uploaderqueue:totaluploadprogress":
                 this.fire("totaluploadprogress", event);
                break;
            case "file:uploadcomplete":
                 this.fire("uploadcomplete", event);
                break;
            case "uploaderqueue:alluploadscomplete":
                 this.queue = null;
                 this.fire("alluploadscomplete", event);
                break;
            case "file:uploaderror": //overflow intentional
            case "uploaderqueue:uploaderror":
                 this.fire("uploaderror", event);
                break;
            case "file:uploadcancel": // overflow intentional
            case "uploaderqueue:uploadcancel":
                 this.fire("uploadcancel", event);
            break;
        }

/**
    * Starts the upload of a specific file.
    *
    * @method upload
    * @param file {FileFlash} Reference to the instance of the file to be uploaded.
    * @param url {String} The URL to upload the file to.
    * @param [postVars] {Object} A set of key-value pairs to send as variables along with the file upload HTTP request.
    *                          If not specified, the values from the attribute `postVarsPerFile` are used instead.
    */
    upload : function (file, url, postvars) {

var uploadURL = url || this.get("uploadURL"),
            postVars = postvars || this.get("postVarsPerFile"),
            fileId = file.get("id");

postVars = postVars.hasOwnProperty(fileId) ? postVars[fileId] : postVars;

if (file instanceof Y.FileFlash) {

file.on("uploadstart", this._uploadEventHandler, this);
            file.on("uploadprogress", this._uploadEventHandler, this);
            file.on("uploadcomplete", this._uploadEventHandler, this);
            file.on("uploaderror", this._uploadEventHandler, this);
            file.on("uploadcancel", this._uploadEventHandler, this);

file.startUpload(uploadURL, postVars, this.get("fileFieldName"));
        }
    },

/**
    * Starts the upload of all files on the file list, using an automated queue.
    *
    * @method uploadAll
    * @param url {String} The URL to upload the files to.
    * @param [postVars] {Object} A set of key-value pairs to send as variables along with the file upload HTTP request.
    *                          If not specified, the values from the attribute `postVarsPerFile` are used instead.
    */
    uploadAll : function (url, postvars) {
        this.uploadThese(this.get("fileList"), url, postvars);
    },

/**
    * Starts the upload of the files specified in the first argument, using an automated queue.
    *
    * @method uploadThese
    * @param files {Array} The list of files to upload.
    * @param url {String} The URL to upload the files to.
    * @param [postVars] {Object} A set of key-value pairs to send as variables along with the file upload HTTP request.
    *                          If not specified, the values from the attribute `postVarsPerFile` are used instead.
    */
    uploadThese : function (files, url, postvars) {
        if (!this.queue) {
            var uploadURL = url || this.get("uploadURL"),
                postVars = postvars || this.get("postVarsPerFile");

this.queue = new UploaderQueue({
                simUploads: this.get("simLimit"),
                errorAction: this.get("errorAction"),
                fileFieldName: this.get("fileFieldName"),
                fileList: files,
                uploadURL: uploadURL,
                perFileParameters: postVars,
                retryCount: this.get("retryCount")
            });

this.queue.on("uploadstart", this._uploadEventHandler, this);
            this.queue.on("uploadprogress", this._uploadEventHandler, this);
            this.queue.on("totaluploadprogress", this._uploadEventHandler, this);
            this.queue.on("uploadcomplete", this._uploadEventHandler, this);
            this.queue.on("alluploadscomplete", this._uploadEventHandler, this);
            this.queue.on("alluploadscancelled", function () {this.queue = null;}, this);
            this.queue.on("uploaderror", this._uploadEventHandler, this);
            this.queue.startUpload();

this.fire("uploadstart");
        }
    }
},

{
    /**
    * The template for the Flash player container. Since the Flash player container needs
    * to completely overlay the &lquot;Select Files&rqot; control, it's positioned absolutely,
    * with width and height set to 100% of the parent.
    *
    * @property FLASH_CONTAINER
    * @type {String}
    * @static
    * @default '<div id="{swfContainerId}" style="position:absolute; top:0px; left: 0px; margin: 0; padding: 0;
    *           border: 0; width:100%; height:100%"></div>'
    */
    FLASH_CONTAINER: '<div id="{swfContainerId}" style="position:absolute; top:0px; left: 0px; margin: 0; ' +
                     'padding: 0; border: 0; width:100%; height:100%"></div>',

/**
    * The template for the "Select Files" button.
    *
    * @property SELECT_FILES_BUTTON
    * @type {String}
    * @static
    * @default "<button type='button' class='yui3-button' tabindex='-1'>{selectButtonLabel}</button>"
    */
    SELECT_FILES_BUTTON: "<button type='button' class='yui3-button' tabindex='-1'>{selectButtonLabel}</button>",

/**
    * The static property reflecting the type of uploader that `Y.Uploader`
    * aliases. The UploaderFlash value is `"flash"`.
    *
    * @property TYPE
    * @type {String}
    * @static
    */
    TYPE: "flash",

/**
    * The identity of the widget.
    *
    * @property NAME
    * @type String
    * @default 'uploader'
    * @readOnly
    * @protected
    * @static
    */
    NAME: "uploader",

/**
    * Static property used to define the default attribute configuration of
    * the Widget.
    *
    * @property ATTRS
    * @type {Object}
    * @protected
    * @static
    */
    ATTRS: {

/**
        * A Boolean indicating whether newly selected files should be appended
        * to the existing file list, or whether they should replace it.
        *
        * @attribute appendNewFiles
        * @type {Boolean}
        * @default true
        */
        appendNewFiles : {
            value: true
        },

/**
        * The names of CSS classes that correspond to different button states
        * of the "Select Files" control. These classes are assigned to the
        * "Select Files" control based on the mouse states reported by the
        * Flash player. The keys for the class names are:
        * <ul>
        *   <li> <strong>`hover`</strong>: the class corresponding to mouse hovering over
        *      the "Select Files" button.</li>
        *   <li> <strong>`active`</strong>: the class corresponding to mouse down state of
        *      the "Select Files" button.</li>
        *   <li> <strong>`disabled`</strong>: the class corresponding to the disabled state
        *      of the "Select Files" button.</li>
        *   <li> <strong>`focus`</strong>: the class corresponding to the focused state of
        *      the "Select Files" button.</li>
        * </ul>
        * @attribute buttonClassNames
        * @type {Object}
        * @default { hover: "yui3-button-hover",
        *            active: "yui3-button-active",
        *            disabled: "yui3-button-disabled",
        *            focus: "yui3-button-selected"
        *          }
        */
        buttonClassNames: {
            value: {
                "hover": "yui3-button-hover",
                "active": "yui3-button-active",
                "disabled": "yui3-button-disabled",
                "focus": "yui3-button-selected"
            }
        },

/**
        * A Boolean indicating whether the uploader is enabled or disabled for user input.
        *
        * @attribute enabled
        * @type {Boolean}
        * @default true
        */
        enabled : {
            value: true
        },

/**
        * The action  performed when an upload error occurs for a specific file being uploaded.
        * The possible values are:
        * <ul>
        *   <li> <strong>`UploaderQueue.CONTINUE`</strong>: the error is ignored and the upload process is continued.</li>
        *   <li> <strong>`UploaderQueue.STOP`</strong>: the upload process is stopped as soon as any other parallel file
        *     uploads are finished.</li>
        *   <li> <strong>`UploaderQueue.RESTART_ASAP`</strong>: the file is added back to the front of the queue.</li>
        *   <li> <strong>`UploaderQueue.RESTART_AFTER`</strong>: the file is added to the back of the queue.</li>
        * </ul>
        * @attribute errorAction
        * @type {String}
        * @default UploaderQueue.CONTINUE
        */
        errorAction: {
            value: "continue",
            validator: function (val) {
                return (
                    val === UploaderQueue.CONTINUE ||
                    val === UploaderQueue.STOP ||
                    val === UploaderQueue.RESTART_ASAP ||
                    val === UploaderQueue.RESTART_AFTER
                );
            }
        },

/**
        * An array indicating what fileFilters should be applied to the file
        * selection dialog. Each element in the array should be an object with
        * the following key-value pairs:
        * {
        *   description : String
         extensions: String of the form &lquot;*.ext1;*.ext2;*.ext3;...&rquot;
        * }
        * @attribute fileFilters
        * @type {Array}
        * @default []
        */
        fileFilters: {
            value: []
        },

/**
        * A filtering function that is applied to every file selected by the user.
        * The function receives the `Y.File` object and must return a Boolean value.
        * If a `false` value is returned, the file in question is not added to the
        * list of files to be uploaded.
        * Use this function to put limits on file sizes or check the file names for
        * correct extension, but make sure that a server-side check is also performed,
        * since any client-side restrictions are only advisory and can be circumvented.
        *
        * @attribute fileFilterFunction
        * @type {Function}
        * @default null
        */
        fileFilterFunction: {
            value: null
        },

/**
        * A String specifying what should be the POST field name for the file
        * content in the upload request.
        *
        * @attribute fileFieldName
        * @type {String}
        * @default Filedata
        */
        fileFieldName: {
            value: "Filedata"
        },

/**
        * The array of files to be uploaded. All elements in the array
        * must be instances of `Y.FileFlash` and be instantiated with a `fileId`
        * retrieved from an instance of the uploader.
        *
        * @attribute fileList
        * @type {Array}
        * @default []
        */
        fileList: {
            value: [],
            getter: "_getFileList",
            setter: "_setFileList"
        },

/**
        * A Boolean indicating whether multiple file selection is enabled.
        *
        * @attribute multipleFiles
        * @type {Boolean}
        * @default false
        */
        multipleFiles: {
            value: false
        },

/**
        * An object, keyed by `fileId`, containing sets of key-value pairs
        * that should be passed as POST variables along with each corresponding
        * file. This attribute is only used if no POST variables are specifed
        * in the upload method call.
        *
        * @attribute postVarsPerFile
        * @type {Object}
        * @default {}
        */
        postVarsPerFile: {
            value: {}
        },

/**
        * The label for the "Select Files" widget. This is the value that replaces the
        * `{selectButtonLabel}` token in the `SELECT_FILES_BUTTON` template.
        *
        * @attribute selectButtonLabel
        * @type {String}
        * @default "Select Files"
        */
        selectButtonLabel: {
            value: "Select Files"
        },

/**
        * The widget that serves as the "Select Files" control for the file uploader
        *
        *
        * @attribute selectFilesButton
        * @type {Node | Widget}
        * @default A standard HTML button with YUI CSS Button skin.
        */
        selectFilesButton : {
            valueFn: function () {
                return Y.Node.create(substitute(Y.UploaderFlash.SELECT_FILES_BUTTON, {selectButtonLabel: this.get("selectButtonLabel")}));
             }
        },

/**
        * The number of files that can be uploaded
        * simultaneously if the automatic queue management
        * is used. This value can be in the range between 2
        * and 5.
        *
        * @attribute simLimit
        * @type {Number}
        * @default 2
        */
        simLimit: {
            value: 2,
            validator: function (val) {
                    return (val >= 2 && val <= 5);
            }
        },

/**
        * The URL to the SWF file of the flash uploader. A copy local to
        * the server that hosts the page on which the uploader appears is
        * recommended.
        *
        * @attribute swfURL
        * @type {String}
        * @default "flashuploader.swf" with a
        * random GET parameter for IE (to prevent buggy behavior when the SWF
        * is cached).
        */
        swfURL: {
            valueFn: function () {
                var prefix = "flashuploader.swf";

if (Y.UA.ie > 0) {
                    return (prefix + "?t=" + Y.guid("uploader"));
                }

return prefix;
            }
        },

/**
        * The id's or `Node` references of the DOM elements that precede
        * and follow the `Select Files` button in the tab order. Specifying
        * these allows keyboard navigation to and from the Flash player
        * layer of the uploader.
        * The two keys corresponding to the DOM elements are:
        <ul>
        *   <li> `from`: the id or the `Node` reference corresponding to the
        *     DOM element that precedes the `Select Files` button in the tab order.</li>
        *   <li> `to`: the id or the `Node` reference corresponding to the
        *     DOM element that follows the `Select Files` button in the tab order.</li>
        * </ul>
        * @attribute tabElements
        * @type {Object}
        * @default null
        */
        tabElements: {
            value: null
        },

/**
        * The URL to which file upload requested are POSTed. Only used if a different url is not passed to the upload method call.
        *
        * @attribute uploadURL
        * @type {String}
        * @default ""
        */
        uploadURL: {
            value: ""
        },

/**
        * The number of times to try re-uploading a file that failed to upload before
        * cancelling its upload.
        *
        * @attribute retryCount
        * @type {Number}
        * @default 3
        */
        retryCount: {
            value: 3
        }
    }
});

Y.UploaderFlash.Queue = UploaderQueue;

}, '3.18.1', {
    "requires": [
        "swfdetect",
        "escape",
        "widget",
        "base",
        "cssbutton",
        "node",
        "event-custom",
        "uploader-queue"
    ]
});

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