/*!

 * jQuery UI 1.5

 *

 * Copyright (c) 2008 Paul Bakaus (ui.jquery.com)

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

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

 *

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

 *

 */

;(function($) {



$.ui = {

	plugin: {

		add: function(module, option, set) {

			var proto = $.ui[module].prototype;

			for(var i in set) {

				proto.plugins[i] = proto.plugins[i] || [];

				proto.plugins[i].push([option, set[i]]);

			}

		},

		call: function(instance, name, args) {

			var set = instance.plugins[name];

			if(!set) { return; }

			

			for (var i = 0; i < set.length; i++) {

				if (instance.options[set[i][0]]) {

					set[i][1].apply(instance.element, args);

				}

			}

		}	

	},

	cssCache: {},

	css: function(name) {

		if ($.ui.cssCache[name]) { return $.ui.cssCache[name]; }

		var tmp = $('<div class="ui-resizable-gen">').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body');

		

		//if (!$.browser.safari)

			//tmp.appendTo('body'); 

		

		//Opera and Safari set width and height to 0px instead of auto

		//Safari returns rgba(0,0,0,0) when bgcolor is not set

		$.ui.cssCache[name] = !!(

			(!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) || 

			!(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor')))

		);

		try { $('body').get(0).removeChild(tmp.get(0));	} catch(e){}

		return $.ui.cssCache[name];

	},

	disableSelection: function(e) {

		e.unselectable = "on";

		e.onselectstart = function() { return false; };

		if (e.style) { e.style.MozUserSelect = "none"; }

	},

	enableSelection: function(e) {

		e.unselectable = "off";

		e.onselectstart = function() { return true; };

		if (e.style) { e.style.MozUserSelect = ""; }

	},

	hasScroll: function(e, a) {

		var scroll = /top/.test(a||"top") ? 'scrollTop' : 'scrollLeft', has = false;

		if (e[scroll] > 0) return true; e[scroll] = 1;

		has = e[scroll] > 0 ? true : false; e[scroll] = 0;

		return has;

	}

};





/** jQuery core modifications and additions **/



var _remove = $.fn.remove;

$.fn.remove = function() {

	$("*", this).add(this).trigger("remove");

	return _remove.apply(this, arguments );

};



// $.widget is a factory to create jQuery plugins

// taking some boilerplate code out of the plugin code

// created by Scott González and Jörn Zaefferer

function getter(namespace, plugin, method) {

	var methods = $[namespace][plugin].getter || [];

	methods = (typeof methods == "string" ? methods.split(/,?\s+/) : methods);

	return ($.inArray(method, methods) != -1);

}



$.widget = function(name, prototype) {

	var namespace = name.split(".")[0];

	name = name.split(".")[1];

	

	// create plugin method

	$.fn[name] = function(options) {

		var isMethodCall = (typeof options == 'string'),

			args = Array.prototype.slice.call(arguments, 1);

		

		if (isMethodCall && getter(namespace, name, options)) {

			var instance = $.data(this[0], name);

			return (instance ? instance[options].apply(instance, args)

				: undefined);

		}

		

		return this.each(function() {

			var instance = $.data(this, name);

			if (isMethodCall && instance && $.isFunction(instance[options])) {

				instance[options].apply(instance, args);

			} else if (!isMethodCall) {

				$.data(this, name, new $[namespace][name](this, options));

			}

		});

	};

	

	// create widget constructor

	$[namespace][name] = function(element, options) {

		var self = this;

		

		this.widgetName = name;

		this.widgetBaseClass = namespace + '-' + name;

		

		this.options = $.extend({ disabled: false }, $[namespace][name].defaults, options);

		this.element = $(element)

			.bind('setData.' + name, function(e, key, value) {

				return self.setData(key, value);

			})

			.bind('getData.' + name, function(e, key) {

				return self.getData(key);

			})

			.bind('remove', function() {

				return self.destroy();

			});

		this.init();

	};

	

	// add widget prototype

	$[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);

};



$.widget.prototype = {

	init: function() {},

	destroy: function() {

		this.element.removeData(this.widgetName);

	},

	

	getData: function(key) {

		return this.options[key];

	},

	setData: function(key, value) {

		this.options[key] = value;

		

		if (key == 'disabled') {

			this.element[value ? 'addClass' : 'removeClass'](

				this.widgetBaseClass + '-disabled');

		}

	},

	

	enable: function() {

		this.setData('disabled', false);

	},

	disable: function() {

		this.setData('disabled', true);

	}

};





/** Mouse Interaction Plugin **/



$.ui.mouse = {

	mouseInit: function() {

		var self = this;

	

		this.element.bind('mousedown.'+this.widgetName, function(e) {

			return self.mouseDown(e);

		});

		

		// Prevent text selection in IE

		if ($.browser.msie) {

			this._mouseUnselectable = this.element.attr('unselectable');

			this.element.attr('unselectable', 'on');

		}

		

		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);

		

		// Restore text selection in IE

		($.browser.msie

			&& this.element.attr('unselectable', this._mouseUnselectable));

	},

	

	mouseDown: function(e) {

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

		(this._mouseStarted && this.mouseUp(e));

		

		this._mouseDownEvent = e;

		

		var self = this,

			btnIsLeft = (e.which == 1),

			elIsCancel = (typeof this.options.cancel == "string" ? $(e.target).is(this.options.cancel) : false);

		if (!btnIsLeft || elIsCancel || !this.mouseCapture(e)) {

			return true;

		}

		

		this._mouseDelayMet = !this.options.delay;

		if (!this._mouseDelayMet) {

			this._mouseDelayTimer = setTimeout(function() {

				self._mouseDelayMet = true;

			}, this.options.delay);

		}

		

		if (this.mouseDistanceMet(e) && this.mouseDelayMet(e)) {

			this._mouseStarted = (this.mouseStart(e) !== false);

			if (!this._mouseStarted) { e.preventDefault(); return true; }

		}

		

		// these delegates are required to keep context

		this._mouseMoveDelegate = function(e) {

			return self.mouseMove(e);

		};

		this._mouseUpDelegate = function(e) {

			return self.mouseUp(e);

		};

		$(document)

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

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

		

		return false;

	},

	

	mouseMove: function(e) {

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

		if ($.browser.msie && !e.button) {

			return this.mouseUp(e);

		}

		

		if (this._mouseStarted) {

			this.mouseDrag(e);

			return false;

		}

		

		if (this.mouseDistanceMet(e) && this.mouseDelayMet(e)) {

			this._mouseStarted =

				(this.mouseStart(this._mouseDownEvent, e) !== false);

			(this._mouseStarted ? this.mouseDrag(e) : this.mouseUp(e));

		}

		

		return !this._mouseStarted;

	},

	

	mouseUp: function(e) {

		$(document)

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

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

		

		if (this._mouseStarted) {

			this._mouseStarted = false;

			this.mouseStop(e);

		}

		

		return false;

	},

	

	mouseDistanceMet: function(e) {

		return (Math.max(

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

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

			) >= this.options.distance

		);

	},

	

	mouseDelayMet: function(e) {

		return this._mouseDelayMet;

	},

	

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

	mouseStart: function(e) {},

	mouseDrag: function(e) {},

	mouseStop: function(e) {},

	mouseCapture: function(e) { return true; }

};



$.ui.mouse.defaults = {

	cancel: null,

	distance: 1,

	delay: 0

};



})(jQuery);