/**
* Provides UI for selecting multiple files and functionality for
* uploading multiple files to the server with support for either
* html5 or Flash transport mechanisms, automatic queue management,
* upload progress monitoring, and error events.
* @module uploader
* @main uploader
* @since 3.5.0
*/

/**
* `Y.Uploader` serves as an alias for either <a href="UploaderFlash.html">`Y.UploaderFlash`</a>
* or <a href="UploaderHTML5.html">`Y.UploaderHTML5`</a>, depending on the feature set available
* in a specific browser. If neither HTML5 nor Flash transport layers are available, `Y.Uploader.TYPE`
* static property is set to `"none"`.
*
* @class Uploader
*/

/**
* The static property reflecting the type of uploader that `Y.Uploader`
* aliases. The possible values are:
* <ul>
* <li><strong>`"html5"`</strong>: Y.Uploader is an alias for <a href="UploaderHTML5.html">Y.UploaderHTML5</a></li>
* <li><strong>`"flash"`</strong>: Y.Uploader is an alias for <a href="UploaderFlash.html">Y.UploaderFlash</a></li>
* <li><strong>`"none"`</strong>: Neither Flash not HTML5 are available, and Y.Uploader does
* not reference an actual implementation.</li>
* </ul>
*
* @property TYPE
* @type {String}
* @static
*/

var Win = Y.config.win;

if (Win && Win.File && Win.FormData && Win.XMLHttpRequest) {
    Y.Uploader = Y.UploaderHTML5;
}

else if (Y.SWFDetect.isFlashVersionAtLeast(10,0,45)) {
    Y.Uploader = Y.UploaderFlash;
}

else {
    Y.namespace("Uploader");
    Y.Uploader.TYPE = "none";
}