/*!

 * jQuery UI Draggable 1.10.3

 * http://jqueryui.com

 *

 * Copyright 2013 jQuery Foundation and other contributors

 * Released under the MIT license.

 * http://jquery.org/license

 *

 * http://api.jqueryui.com/draggable/

 *

 * Depends:

 *	jquery.ui.core.js

 *	jquery.ui.mouse.js

 *	jquery.ui.widget.js

 */

(function( $, undefined ) {

$.widget("ui.draggable", $.ui.mouse, {

	version: "1.10.3",

	widgetEventPrefix: "drag",

	options: {

		addClasses: true,

		appendTo: "parent",

		axis: false,

		connectToSortable: false,

		containment: false,

		cursor: "auto",

		cursorAt: false,

		grid: false,

		handle: false,

		helper: "original",

		iframeFix: false,

		opacity: false,

		refreshPositions: false,

		revert: false,

		revertDuration: 500,

		scope: "default",

		scroll: true,

		scrollSensitivity: 20,

		scrollSpeed: 20,

		snap: false,

		snapMode: "both",

		snapTolerance: 20,

		stack: false,

		zIndex: false,

		// callbacks

		drag: null,

		start: null,

		stop: null

	},

	_create: function() {

		if (this.options.helper === "original" && !(/^(?:r|a|f)/).test(this.element.css("position"))) {

			this.element[0].style.position = "relative";

		}

		if (this.options.addClasses){

			this.element.addClass("ui-draggable");

		}

		if (this.options.disabled){

			this.element.addClass("ui-draggable-disabled");

		}

		this._mouseInit();

	},

	_destroy: function() {

		this.element.removeClass( "ui-draggable ui-draggable-dragging ui-draggable-disabled" );

		this._mouseDestroy();

	},

	_mouseCapture: function(event) {

		var o = this.options;

		// among others, prevent a drag on a resizable-handle

		if (this.helper || o.disabled || $(event.target).closest(".ui-resizable-handle").length > 0) {

			return false;

		}

		//Quit if we're not on a valid handle

		this.handle = this._getHandle(event);

		if (!this.handle) {

			return false;

		}

		$(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() {

			$("<div class='ui-draggable-iframeFix' style='background: #fff;'></div>")

			.css({

				width: this.offsetWidth+"px", height: this.offsetHeight+"px",

				position: "absolute", opacity: "0.001", zIndex: 1000

			})

			.css($(this).offset())

			.appendTo("body");

		});

		return true;

	},

	_mouseStart: function(event) {

		var o = this.options;

		//Create and append the visible helper

		this.helper = this._createHelper(event);

		this.helper.addClass("ui-draggable-dragging");

		//Cache the helper size

		this._cacheHelperProportions();

		//If ddmanager is used for droppables, set the global draggable

		if($.ui.ddmanager) {

			$.ui.ddmanager.current = this;

		}

		/*

		 * - Position generation -

		 * This block generates everything position related - it's the core of draggables.

		 */

		//Cache the margins of the original element

		this._cacheMargins();

		//Store the helper's css position

		this.cssPosition = this.helper.css( "position" );

		this.scrollParent = this.helper.scrollParent();

		this.offsetParent = this.helper.offsetParent();

		this.offsetParentCssPosition = this.offsetParent.css( "position" );

		//The element's absolute position on the page minus margins

		this.offset = this.positionAbs = this.element.offset();

		this.offset = {

			top: this.offset.top - this.margins.top,

			left: this.offset.left - this.margins.left

		};

		//Reset scroll cache

		this.offset.scroll = false;

		$.extend(this.offset, {

			click: { //Where the click happened, relative to the element

				left: event.pageX - this.offset.left,

				top: event.pageY - this.offset.top

			},

			parent: this._getParentOffset(),

			relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper

		});

		//Generate the original position

		this.originalPosition = this.position = this._generatePosition(event);

		this.originalPageX = event.pageX;

		this.originalPageY = event.pageY;

		//Adjust the mouse offset relative to the helper if "cursorAt" is supplied

		(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));

		//Set a containment if given in the options

		this._setContainment();

		//Trigger event + callbacks

		if(this._trigger("start", event) === false) {

			this._clear();

			return false;

		}

		//Recache the helper size

		this._cacheHelperProportions();

		//Prepare the droppable offsets

		if ($.ui.ddmanager && !o.dropBehaviour) {

			$.ui.ddmanager.prepareOffsets(this, event);

		}

		this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position

		//If the ddmanager is used for droppables, inform the manager that dragging has started (see #5003)

		if ( $.ui.ddmanager ) {

			$.ui.ddmanager.dragStart(this, event);

		}

		return true;

	},

	_mouseDrag: function(event, noPropagation) {

		// reset any necessary cached properties (see #5009)

		if ( this.offsetParentCssPosition === "fixed" ) {

			this.offset.parent = this._getParentOffset();

		}

		//Compute the helpers position

		this.position = this._generatePosition(event);

		this.positionAbs = this._convertPositionTo("absolute");

		//Call plugins and callbacks and use the resulting position if something is returned

		if (!noPropagation) {

			var ui = this._uiHash();

			if(this._trigger("drag", event, ui) === false) {

				this._mouseUp({});

				return false;

			}

			this.position = ui.position;

		}

		if(!this.options.axis || this.options.axis !== "y") {

			this.helper[0].style.left = this.position.left+"px";

		}

		if(!this.options.axis || this.options.axis !== "x") {

			this.helper[0].style.top = this.position.top+"px";

		}

		if($.ui.ddmanager) {

			$.ui.ddmanager.drag(this, event);

		}

		return false;

	},

	_mouseStop: function(event) {

		//If we are using droppables, inform the manager about the drop

		var that = this,

			dropped = false;

		if ($.ui.ddmanager && !this.options.dropBehaviour) {

			dropped = $.ui.ddmanager.drop(this, event);

		}

		//if a drop comes from outside (a sortable)

		if(this.dropped) {

			dropped = this.dropped;

			this.dropped = false;

		}

		//if the original element is no longer in the DOM don't bother to continue (see #8269)

		if ( this.options.helper === "original" && !$.contains( this.element[ 0 ].ownerDocument, this.element[ 0 ] ) ) {

			return false;

		}

		if((this.options.revert === "invalid" && !dropped) || (this.options.revert === "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {

			$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() {

				if(that._trigger("stop", event) !== false) {

					that._clear();

				}

			});

		} else {

			if(this._trigger("stop", event) !== false) {

				this._clear();

			}

		}

		return false;

	},

	_mouseUp: function(event) {

		//Remove frame helpers

		$("div.ui-draggable-iframeFix").each(function() {

			this.parentNode.removeChild(this);

		});

		//If the ddmanager is used for droppables, inform the manager that dragging has stopped (see #5003)

		if( $.ui.ddmanager ) {

			$.ui.ddmanager.dragStop(this, event);

		}

		return $.ui.mouse.prototype._mouseUp.call(this, event);

	},

	cancel: function() {

		if(this.helper.is(".ui-draggable-dragging")) {

			this._mouseUp({});

		} else {

			this._clear();

		}

		return this;

	},

	_getHandle: function(event) {

		return this.options.handle ?

			!!$( event.target ).closest( this.element.find( this.options.handle ) ).length :

			true;

	},

	_createHelper: function(event) {

		var o = this.options,

			helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper === "clone" ? this.element.clone().removeAttr("id") : this.element);

		if(!helper.parents("body").length) {

			helper.appendTo((o.appendTo === "parent" ? this.element[0].parentNode : o.appendTo));

		}

		if(helper[0] !== this.element[0] && !(/(fixed|absolute)/).test(helper.css("position"))) {

			helper.css("position", "absolute");

		}

		return helper;

	},

	_adjustOffsetFromHelper: function(obj) {

		if (typeof obj === "string") {

			obj = obj.split(" ");

		}

		if ($.isArray(obj)) {

			obj = {left: +obj[0], top: +obj[1] || 0};

		}

		if ("left" in obj) {

			this.offset.click.left = obj.left + this.margins.left;

		}

		if ("right" in obj) {

			this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;

		}

		if ("top" in obj) {

			this.offset.click.top = obj.top + this.margins.top;

		}

		if ("bottom" in obj) {

			this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;

		}

	},

	_getParentOffset: function() {

		//Get the offsetParent and cache its position

		var po = this.offsetParent.offset();

		// This is a special case where we need to modify a offset calculated on start, since the following happened:

		// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent

		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that

		//    the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag

		if(this.cssPosition === "absolute" && this.scrollParent[0] !== document && $.contains(this.scrollParent[0], this.offsetParent[0])) {

			po.left += this.scrollParent.scrollLeft();

			po.top += this.scrollParent.scrollTop();

		}

		//This needs to be actually done for all browsers, since pageX/pageY includes this information

		//Ugly IE fix

		if((this.offsetParent[0] === document.body) ||

			(this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() === "html" && $.ui.ie)) {

			po = { top: 0, left: 0 };

		}

		return {

			top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),

			left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)

		};

	},

	_getRelativeOffset: function() {

		if(this.cssPosition === "relative") {

			var p = this.element.position();

			return {