/*

 * jQuery UI Progressbar 1.8.1

 *

 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)

 * Dual licensed under the MIT (MIT-LICENSE.txt)

 * and GPL (GPL-LICENSE.txt) licenses.

 *

 * http://docs.jquery.com/UI/Progressbar

 *

 * Depends:

 *   jquery.ui.core.js

 *   jquery.ui.widget.js

 */

(function( $ ) {

$.widget( "ui.progressbar", {

	options: {

		value: 0

	},

	_create: function() {

		this.element

			.addClass( "ui-progressbar ui-widget ui-widget-content ui-corner-all" )

			.attr({

				role: "progressbar",

				"aria-valuemin": this._valueMin(),

				"aria-valuemax": this._valueMax(),

				"aria-valuenow": this._value()

			});

		this.valueDiv = $( "<div class='ui-progressbar-value ui-widget-header ui-corner-left'></div>" )

			.appendTo( this.element );

		this._refreshValue();

	},

	destroy: function() {

		this.element

			.removeClass( "ui-progressbar ui-widget ui-widget-content ui-corner-all" )

			.removeAttr( "role" )

			.removeAttr( "aria-valuemin" )

			.removeAttr( "aria-valuemax" )

			.removeAttr( "aria-valuenow" );

		this.valueDiv.remove();

		$.Widget.prototype.destroy.apply( this, arguments );

	},

	value: function( newValue ) {

		if ( newValue === undefined ) {

			return this._value();

		}

		this._setOption( "value", newValue );

		return this;

	},

	_setOption: function( key, value ) {

		switch ( key ) {

			case "value":

				this.options.value = value;

				this._refreshValue();

				this._trigger( "change" );

				break;

		}

		$.Widget.prototype._setOption.apply( this, arguments );

	},

	_value: function() {

		var val = this.options.value;

		// normalize invalid value

		if ( typeof val !== "number" ) {

			val = 0;

		}

		if ( val < this._valueMin() ) {

			val = this._valueMin();

		}

		if ( val > this._valueMax() ) {

			val = this._valueMax();

		}

		return val;

	},

	_valueMin: function() {

		return 0;

	},

	_valueMax: function() {

		return 100;

	},

	_refreshValue: function() {

		var value = this.value();

		this.valueDiv

			[ value === this._valueMax() ? "addClass" : "removeClass"]( "ui-corner-right" )

			.width( value + "%" );

		this.element.attr( "aria-valuenow", value );

	}

});

$.extend( $.ui.progressbar, {

	version: "1.8.1"

});

})( jQuery );