/**
 * jGrowl 1.2.6
 *
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * Written by Stan Lemon <stosh1985@gmail.com>
 * Last updated: 2011.03.27
 *
 * jGrowl is a jQuery plugin implementing unobtrusive userland notifications.  These 
 * notifications function similarly to the Growl Framework available for
 * Mac OS X (http://growl.info).
 *
 * To Do:
 * - Move library settings to containers and allow them to be changed per container
 *
 * Changes in 1.2.6
 * - Fixed js error when a notification is opening and closing at the same time
 * 
 * Changes in 1.2.5
 * - Changed wrapper jGrowl's options usage to "o" instead of $.jGrowl.defaults
 * - Added themeState option to control 'highlight' or 'error' for jQuery UI
 * - Ammended some CSS to provide default positioning for nested usage.
 * - Changed some CSS to be prefixed with jGrowl- to prevent namespacing issues
 * - Added two new options - openDuration and closeDuration to allow 
 *   better control of notification open and close speeds, respectively 
 *   Patch contributed by Jesse Vincet.
 * - Added afterOpen callback.  Patch contributed by Russel Branca.
 *
 * Changes in 1.2.4
 * - Fixed IE bug with the close-all button
 * - Fixed IE bug with the filter CSS attribute (special thanks to gotwic)
 * - Update IE opacity CSS
 * - Changed font sizes to use "em", and only set the base style
 *
 * Changes in 1.2.3
 * - The callbacks no longer use the container as context, instead they use the actual notification
 * - The callbacks now receive the container as a parameter after the options parameter
 * - beforeOpen and beforeClose now check the return value, if it's false - the notification does
 *   not continue.  The open callback will also halt execution if it returns false.
 * - Fixed bug where containers would get confused
 * - Expanded the pause functionality to pause an entire container.
 *
 * Changes in 1.2.2
 * - Notification can now be theme rolled for jQuery UI, special thanks to Jeff Chan!
 *
 * Changes in 1.2.1
 * - Fixed instance where the interval would fire the close method multiple times.
 * - Added CSS to hide from print media
 * - Fixed issue with closer button when div { position: relative } is set
 * - Fixed leaking issue with multiple containers.  Special thanks to Matthew Hanlon!
 *
 * Changes in 1.2.0
 * - Added message pooling to limit the number of messages appearing at a given time.
 * - Closing a notification is now bound to the notification object and triggered by the close button.
 *
 * Changes in 1.1.2
 * - Added iPhone styled example
 * - Fixed possible IE7 bug when determining if the ie6 class shoudl be applied.
 * - Added template for the close button, so that it's content could be customized.
 *
 * Changes in 1.1.1
 * - Fixed CSS styling bug for ie6 caused by a mispelling
 * - Changes height restriction on default notifications to min-height
 * - Added skinned examples using a variety of images
 * - Added the ability to customize the content of the [close all] box
 * - Added jTweet, an example of using jGrowl + Twitter
 *
 * Changes in 1.1.0
 * - Multiple container and instances.
 * - Standard $.jGrowl() now wraps $.fn.jGrowl() by first establishing a generic jGrowl container.
 * - Instance methods of a jGrowl container can be called by $.fn.jGrowl(methodName)
 * - Added glue preferenced, which allows notifications to be inserted before or after nodes in the container
 * - Added new log callback which is called before anything is done for the notification
 * - Corner's attribute are now applied on an individual notification basis.
 *
 * Changes in 1.0.4
 * - Various CSS fixes so that jGrowl renders correctly in IE6.
 *
 * Changes in 1.0.3
 * - Fixed bug with options persisting across notifications
 * - Fixed theme application bug
 * - Simplified some selectors and manipulations.
 * - Added beforeOpen and beforeClose callbacks
 * - Reorganized some lines of code to be more readable
 * - Removed unnecessary this.defaults context
 * - If corners plugin is present, it's now customizable.
 * - Customizable open animation.
 * - Customizable close animation.
 * - Customizable animation easing.
 * - Added customizable positioning (top-left, top-right, bottom-left, bottom-right, center)
 *
 * Changes in 1.0.2
 * - All CSS styling is now external.
 * - Added a theme parameter which specifies a secondary class for styling, such
 *   that notifications can be customized in appearance on a per message basis.
 * - Notification life span is now customizable on a per message basis.
 * - Added the ability to disable the global closer, enabled by default.
 * - Added callbacks for when a notification is opened or closed.
 * - Added callback for the global closer.
 * - Customizable animation speed.
 * - jGrowl now set itself up and tears itself down.
 *
 * Changes in 1.0.1:
 * - Removed dependency on metadata plugin in favor of .data()
 * - Namespaced all events
 */
(function($) {

    /** jGrowl Wrapper - Establish a base jGrowl Container for compatibility with older releases. **/
    $.jGrowl = function( m , o ) {
	// To maintain compatibility with older version that only supported one instance we'll create the base container.
	if ( $('#jGrowl').size() == 0 ) 
	    $('<div id="jGrowl"></div>').addClass( (o && o.position) ? o.position : $.jGrowl.defaults.position ).appendTo('body');

	// Create a notification on the container.
	$('#jGrowl').jGrowl(m,o);
    };


    /** Raise jGrowl Notification on a jGrowl Container **/
    $.fn.jGrowl = function( m , o ) {
	if ( $.isFunction(this.each) ) {
	    var args = arguments;

	    return this.each(function() {
		var self = this;

		/** Create a jGrowl Instance on the Container if it does not exist **/
		if ( $(this).data('jGrowl.instance') == undefined ) {
		    $(this).data('jGrowl.instance', $.extend( new $.fn.jGrowl(), {
			notifications: [], 
			element: null, 
			interval: null
		    } ));
		    $(this).data('jGrowl.instance').startup( this );
		}

		/** Optionally call jGrowl instance methods, or just raise a normal notification **/
		if ( $.isFunction($(this).data('jGrowl.instance')[m]) ) {
		    $(this).data('jGrowl.instance')[m].apply( $(this).data('jGrowl.instance') , $.makeArray(args).slice(1) );
		} else {
		    $(this).data('jGrowl.instance').create( m , o );
		}
	    });
	};
    };

    $.extend( $.fn.jGrowl.prototype , {

	/** Default JGrowl Settings **/
	defaults: {
	    pool: 			0,
	    header: 		'',
	    group: 			'',
	    sticky: 		false,
	    position: 		'top-right',
	    glue: 			'after',
	    theme: 			'default',
	    themeState: 	'highlight',
	    corners: 		'10px',
	    check: 			250,
	    life: 			3000,
	    closeDuration:  'normal',
	    openDuration:   'normal',
	    easing: 		'swing',
	    closer: 		true,
	    closeTemplate: '&times;',
	    closerTemplate: '<div>[ close all ]</div>',
	    log: 			function(e,m,o) {},
	    beforeOpen: 	function(e,m,o) {},
	    afterOpen: 		function(e,m,o) {},
	    open: 			function(e,m,o) {},
	    beforeClose: 	function(e,m,o) {},
	    close: 			function(e,m,o) {},
	    animateOpen: 	{
		opacity: 	'show'
	    },
	    animateClose: 	{
		opacity: 	'hide'
	    }
	},
		
	notifications: [],
		
	/** jGrowl Container Node **/
	element: 	null,
	
	/** Interval Function **/
	interval:   null,
		
	/** Create a Notification **/
	create: 	function( message , o ) {
	    var o = $.extend({}, this.defaults, o);

	    /* To keep backward compatibility with 1.24 and earlier, honor 'speed' if the user has set it */
	    if (typeof o.speed !== 'undefined') {
		o.openDuration = o.speed;
		o.closeDuration = o.speed;
	    }

	    this.notifications.push({
		message: message , 
		options: o
	    });
			
	    o.log.apply( this.element , [this.element,message,o] );
	},
		
	render: 		function( notification ) {
	    var self = this;
	    var message = notification.message;
	    var o = notification.options;

	    // Support for jQuery theme-states, if this is not used it displays a widget header
	    o.themeState = (o.themeState == '') ? '' : 'ui-state-' + o.themeState;

	    var notification = $(
		'<div class="jGrowl-notification ' + o.themeState + ' ui-corner-all' + 
		((o.group != undefined && o.group != '') ? ' ' + o.group : '') + '">' +
		'<div class="jGrowl-close">' + o.closeTemplate + '</div>' +
		'<div class="jGrowl-header">' + o.header + '</div>' +
		'<div class="jGrowl-message">' + message + '</div></div>'
		).data("jGrowl", o).addClass(o.theme).children('div.jGrowl-close').bind("click.jGrowl", function() {
		$(this).parent().trigger('jGrowl.close');
	    }).parent();


	    /** Notification Actions **/
	    $(notification).bind("mouseover.jGrowl", function() {
		$('div.jGrowl-notification', self.element).data("jGrowl.pause", true);
	    }).bind("mouseout.jGrowl", function() {
		$('div.jGrowl-notification', self.element).data("jGrowl.pause", false);
	    }).bind('jGrowl.beforeOpen', function() {
		if ( o.beforeOpen.apply( notification , [notification,message,o,self.element] ) != false ) {
		    $(this).trigger('jGrowl.open');
		}
	    }).bind('jGrowl.open', function() {
		if ( o.open.apply( notification , [notification,message,o,self.element] ) != false ) {
		    if ( o.glue == 'after' ) {
			$('div.jGrowl-notification:last', self.element).after(notification);
		    } else {
			$('div.jGrowl-notification:first', self.element).before(notification);
		    }
					
		    $(this).animate(o.animateOpen, o.openDuration, o.easing, function() {
			// Fixes some anti-aliasing issues with IE filters.
			if ($.browser.msie && (parseInt($(this).css('opacity'), 10) === 1 || parseInt($(this).css('opacity'), 10) === 0))
			    this.style.removeAttribute('filter');

			if ( $(this).data("jGrowl") != null ) // Happens when a notification is closing before it's open.
			    $(this).data("jGrowl").created = new Date();
						
			$(this).trigger('jGrowl.afterOpen');
		    });
		}
	    }).bind('jGrowl.afterOpen', function() {
		o.afterOpen.apply( notification , [notification,message,o,self.element] );
	    }).bind('jGrowl.beforeClose', function() {
		if ( o.beforeClose.apply( notification , [notification,message,o,self.element] ) != false )
		    $(this).trigger('jGrowl.close');
	    }).bind('jGrowl.close', function() {
		// Pause the notification, lest during the course of animation another close event gets called.
		$(this).data('jGrowl.pause', true);
		$(this).animate(o.animateClose, o.closeDuration, o.easing, function() {
		    if ( $.isFunction(o.close) ) {
			if ( o.close.apply( notification , [notification,message,o,self.element] ) !== false )
			    $(this).remove();
		    } else {
			$(this).remove();
		    }
		});
	    }).trigger('jGrowl.beforeOpen');
		
	    /** Optional Corners Plugin **/
	    if ( o.corners != '' && $.fn.corner != undefined ) $(notification).corner( o.corners );

	    /** Add a Global Closer if more than one notification exists **/
	    if ( $('div.jGrowl-notification:parent', self.element).size() > 1 && 
		$('div.jGrowl-closer', self.element).size() == 0 && this.defaults.closer != false ) {
		$(this.defaults.closerTemplate).addClass('jGrowl-closer ' + this.defaults.themeState + ' ui-corner-all').addClass(this.defaults.theme)
		.appendTo(self.element).animate(this.defaults.animateOpen, this.defaults.speed, this.defaults.easing)
		.bind("click.jGrowl", function() {
		    $(this).siblings().trigger("jGrowl.beforeClose");

		    if ( $.isFunction( self.defaults.closer ) ) {
			self.defaults.closer.apply( $(this).parent()[0] , [$(this).parent()[0]] );
		    }
		});
	    };
	},

	/** Update the jGrowl Container, removing old jGrowl notifications **/
	update:	 function() {
	    $(this.element).find('div.jGrowl-notification:parent').each( function() {
		if ( $(this).data("jGrowl") != undefined && $(this).data("jGrowl").created != undefined && 
		    ($(this).data("jGrowl").created.getTime() + parseInt($(this).data("jGrowl").life))  < (new Date()).getTime() && 
		    $(this).data("jGrowl").sticky != true && 
		    ($(this).data("jGrowl.pause") == undefined || $(this).data("jGrowl.pause") != true) ) {

		    // Pause the notification, lest during the course of animation another close event gets called.
		    $(this).trigger('jGrowl.beforeClose');
		}
	    });

	    if ( this.notifications.length > 0 && 
		(this.defaults.pool == 0 || $(this.element).find('div.jGrowl-notification:parent').size() < this.defaults.pool) )
		this.render( this.notifications.shift() );

	    if ( $(this.element).find('div.jGrowl-notification:parent').size() < 2 ) {
		$(this.element).find('div.jGrowl-closer').animate(this.defaults.animateClose, this.defaults.speed, this.defaults.easing, function() {
		    $(this).remove();
		});
	    }
	},

	/** Setup the jGrowl Notification Container **/
	startup:	function(e) {
	    this.element = $(e).addClass('jGrowl').append('<div class="jGrowl-notification"></div>');
	    this.interval = setInterval( function() { 
		$(e).data('jGrowl.instance').update(); 
	    }, parseInt(this.defaults.check));
	    if($.browser.msie && parseInt($.browser.version) == 6 && window["XMLHttpRequest"] ) {
		$.browser.version = "7.0";
	    }
	    if ($.browser.msie && parseInt($.browser.version) < 7) $(this.element).addClass('ie6');
	},

	/** Shutdown jGrowl, removing it and clearing the interval **/
	shutdown:   function() {
	    $(this.element).removeClass('jGrowl').find('div.jGrowl-notification').remove();
	    clearInterval( this.interval );
	},
		
	close: 	function() {
	    $(this.element).find('div.jGrowl-notification').each(function(){
		$(this).trigger('jGrowl.beforeClose');
	    });
	}
    });
	
    /** Reference the Defaults Object for compatibility with older versions of jGrowl **/
    $.jGrowl.defaults = $.fn.jGrowl.prototype.defaults;

})(jQuery);