/*!

 * jQuery UI Mouse 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/mouse/

 *

 * Depends:

 *	jquery.ui.widget.js

 */

(function( $, undefined ) {

var mouseHandled = false;

$( document ).mouseup( function() {

	mouseHandled = false;

});

$.widget("ui.mouse", {

	version: "1.10.3",

	options: {

		cancel: "input,textarea,button,select,option",

		distance: 1,

		delay: 0

	},

	_mouseInit: function() {

		var that = this;

		this.element

			.bind("mousedown."+this.widgetName, function(event) {

				return that._mouseDown(event);

			})

			.bind("click."+this.widgetName, function(event) {

				if (true === $.data(event.target, that.widgetName + ".preventClickEvent")) {

					$.removeData(event.target, that.widgetName + ".preventClickEvent");

					event.stopImmediatePropagation();

					return false;

				}

			});

		this.started = false;

	},

	// TODO: make sure destroying one instance of mouse doesn't mess with

	// other instances of mouse

	_mouseDestroy: function() {

		this.element.unbind("."+this.widgetName);

		if ( this._mouseMoveDelegate ) {

			$(document)

				.unbind("mousemove."+this.widgetName, this._mouseMoveDelegate)

				.unbind("mouseup."+this.widgetName, this._mouseUpDelegate);

		}

	},

	_mouseDown: function(event) {

		// don't let more than one widget handle mouseStart

		if( mouseHandled ) { return; }

		// we may have missed mouseup (out of window)

		(this._mouseStarted && this._mouseUp(event));

		this._mouseDownEvent = event;

		var that = this,

			btnIsLeft = (event.which === 1),

			// event.target.nodeName works around a bug in IE 8 with

			// disabled inputs (#7620)

			elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);

		if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {

			return true;

		}

		this.mouseDelayMet = !this.options.delay;

		if (!this.mouseDelayMet) {

			this._mouseDelayTimer = setTimeout(function() {

				that.mouseDelayMet = true;

			}, this.options.delay);

		}

		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {

			this._mouseStarted = (this._mouseStart(event) !== false);

			if (!this._mouseStarted) {

				event.preventDefault();

				return true;

			}

		}

		// Click event may never have fired (Gecko & Opera)

		if (true === $.data(event.target, this.widgetName + ".preventClickEvent")) {

			$.removeData(event.target, this.widgetName + ".preventClickEvent");

		}

		// these delegates are required to keep context

		this._mouseMoveDelegate = function(event) {

			return that._mouseMove(event);

		};

		this._mouseUpDelegate = function(event) {

			return that._mouseUp(event);

		};

		$(document)

			.bind("mousemove."+this.widgetName, this._mouseMoveDelegate)

			.bind("mouseup."+this.widgetName, this._mouseUpDelegate);

		event.preventDefault();

		mouseHandled = true;

		return true;

	},

	_mouseMove: function(event) {

		// IE mouseup check - mouseup happened when mouse was out of window

		if ($.ui.ie && ( !document.documentMode || document.documentMode < 9 ) && !event.button) {

			return this._mouseUp(event);

		}

		if (this._mouseStarted) {

			this._mouseDrag(event);

			return event.preventDefault();

		}

		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {

			this._mouseStarted =

				(this._mouseStart(this._mouseDownEvent, event) !== false);

			(this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));

		}

		return !this._mouseStarted;

	},

	_mouseUp: function(event) {

		$(document)

			.unbind("mousemove."+this.widgetName, this._mouseMoveDelegate)

			.unbind("mouseup."+this.widgetName, this._mouseUpDelegate);

		if (this._mouseStarted) {

			this._mouseStarted = false;

			if (event.target === this._mouseDownEvent.target) {

				$.data(event.target, this.widgetName + ".preventClickEvent", true);

			}

			this._mouseStop(event);

		}

		return false;

	},

	_mouseDistanceMet: function(event) {

		return (Math.max(

				Math.abs(this._mouseDownEvent.pageX - event.pageX),

				Math.abs(this._mouseDownEvent.pageY - event.pageY)

			) >= this.options.distance

		);

	},

	_mouseDelayMet: function(/* event */) {

		return this.mouseDelayMet;

	},

	// These are placeholder methods, to be overriden by extending plugin

	_mouseStart: function(/* event */) {},

	_mouseDrag: function(/* event */) {},

	_mouseStop: function(/* event */) {},

	_mouseCapture: function(/* event */) { return true; }

});

})(jQuery);