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/*
This file is part of Ext JS 3.4

Copyright (c) 2011-2013 Sencha Inc

Contact:  http://www.sencha.com/contact

GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as
published by the Free Software Foundation and appearing in the file LICENSE included in the
packaging of this file.

Please review the following information to ensure the GNU General Public License version 3.0
requirements will be met: http://www.gnu.org/copyleft/gpl.html.

If you are unsure which license is appropriate for your use, please contact the sales department
at http://www.sencha.com/contact.

Build date: 2013-04-03 15:07:25
*/
/*
	Speed Plug-in
	
	Features:
		*Adds several properties to the 'file' object indicated upload speed, time left, upload time, etc.
			- currentSpeed -- String indicating the upload speed, bytes per second
			- averageSpeed -- Overall average upload speed, bytes per second
			- movingAverageSpeed -- Speed over averaged over the last several measurements, bytes per second
			- timeRemaining -- Estimated remaining upload time in seconds
			- timeElapsed -- Number of seconds passed for this upload
			- percentUploaded -- Percentage of the file uploaded (0 to 100)
			- sizeUploaded -- Formatted size uploaded so far, bytes
		
		*Adds setting 'moving_average_history_size' for defining the window size used to calculate the moving average speed.
		
		*Adds several Formatting functions for formatting that values provided on the file object.
			- SWFUpload.speed.formatBPS(bps) -- outputs string formatted in the best units (Gbps, Mbps, Kbps, bps)
			- SWFUpload.speed.formatTime(seconds) -- outputs string formatted in the best units (x Hr y M z S)
			- SWFUpload.speed.formatSize(bytes) -- outputs string formatted in the best units (w GB x MB y KB z B )
			- SWFUpload.speed.formatPercent(percent) -- outputs string formatted with a percent sign (x.xx %)
			- SWFUpload.speed.formatUnits(baseNumber, divisionArray, unitLabelArray, fractionalBoolean)
				- Formats a number using the division array to determine how to apply the labels in the Label Array
				- factionalBoolean indicates whether the number should be returned as a single fractional number with a unit (speed)
				    or as several numbers labeled with units (time)
	*/

var SWFUpload;
if (typeof(SWFUpload) === "function") {
	SWFUpload.speed = {};
	
	SWFUpload.prototype.initSettings = (function (oldInitSettings) {
		return function () {
			if (typeof(oldInitSettings) === "function") {
				oldInitSettings.call(this);
			}
			
			this.ensureDefault = function (settingName, defaultValue) {
				this.settings[settingName] = (this.settings[settingName] == undefined) ? defaultValue : this.settings[settingName];
			};

			// List used to keep the speed stats for the files we are tracking
			this.fileSpeedStats = {};
			this.speedSettings = {};

			this.ensureDefault("moving_average_history_size", "10");
			
			this.speedSettings.user_file_queued_handler = this.settings.file_queued_handler;
			this.speedSettings.user_file_queue_error_handler = this.settings.file_queue_error_handler;
			this.speedSettings.user_upload_start_handler = this.settings.upload_start_handler;
			this.speedSettings.user_upload_error_handler = this.settings.upload_error_handler;
			this.speedSettings.user_upload_progress_handler = this.settings.upload_progress_handler;
			this.speedSettings.user_upload_success_handler = this.settings.upload_success_handler;
			this.speedSettings.user_upload_complete_handler = this.settings.upload_complete_handler;
			
			this.settings.file_queued_handler = SWFUpload.speed.fileQueuedHandler;
			this.settings.file_queue_error_handler = SWFUpload.speed.fileQueueErrorHandler;
			this.settings.upload_start_handler = SWFUpload.speed.uploadStartHandler;
			this.settings.upload_error_handler = SWFUpload.speed.uploadErrorHandler;
			this.settings.upload_progress_handler = SWFUpload.speed.uploadProgressHandler;
			this.settings.upload_success_handler = SWFUpload.speed.uploadSuccessHandler;
			this.settings.upload_complete_handler = SWFUpload.speed.uploadCompleteHandler;
			
			delete this.ensureDefault;
		};
	})(SWFUpload.prototype.initSettings);

	
	SWFUpload.speed.fileQueuedHandler = function (file) {
		if (typeof this.speedSettings.user_file_queued_handler === "function") {
			file = SWFUpload.speed.extendFile(file);
			
			return this.speedSettings.user_file_queued_handler.call(this, file);
		}
	};
	
	SWFUpload.speed.fileQueueErrorHandler = function (file, errorCode, message) {
		if (typeof this.speedSettings.user_file_queue_error_handler === "function") {
			file = SWFUpload.speed.extendFile(file);