/**
 * jGrowl 1.2.0
 *
 * 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 <stanlemon@mac.com>
 * Last updated: 2009.05.11
 *
 * 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 1.2.0
 * - 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) $('<div id="jGrowl"></div>').addClass($.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', new $.fn.jGrowl());
                    $(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: 'bottom-right', // Is this still needed?
            glue: 'after',
            theme: 'default',
            corners: '5px',
            check: 250,
            life: 3000,
            speed: 'normal',
            easing: 'swing',
            closer: true,
            closeTemplate: '&times;',
            loadingIcons: false,
            closerTemplate: '<div>[ close all ]</div>',
            log: function(e, m, o) { },
            beforeOpen: 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);

            this.notifications[this.notifications.length] = { 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;

            var loadingIcons = '';
            if (o.loadingIcons)
                loadingIcons = '<div class="loading-icons"></div>';


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

            (o.glue == 'after') ? $('div.jGrowl-notification:last', this.element).after(notification) : $('div.jGrowl-notification:first', this.element).before(notification);

            /** Notification Actions **/
            $(notification).bind("mouseover.jGrowl", function() {
                $(this).data("jGrowl").pause = true;
            }).bind("mouseout.jGrowl", function() {
                $(this).data("jGrowl").pause = false;
            }).bind('jGrowl.beforeOpen', function() {
                o.beforeOpen.apply(self.element, [self.element, message, o]);
            }).bind('jGrowl.open', function() {
                o.open.apply(self.element, [self.element, message, o]);
            }).bind('jGrowl.beforeClose', function() {
                o.beforeClose.apply(self.element, [self.element, message, o]);
            }).bind('jGrowl.close', function() {
                $(this).trigger('jGrowl.beforeClose').animate(o.animateClose, o.speed, o.easing, function() {
                    $(this).remove();
                    o.close.apply(self.element, [self.element, message, o]);
                });
            }).trigger('jGrowl.beforeOpen').animate(o.animateOpen, o.speed, o.easing, function() {
                $(this).data("jGrowl").created = new Date();
            }).trigger('jGrowl.open');

            /** Optional Corners Plugin **/
            if ($.fn.corners != undefined && o.corners != false) $(notification).corners(o.corners);

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

                    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() + $(this).data("jGrowl").life) < (new Date()).getTime() && $(this).data("jGrowl").sticky != true &&
					 ($(this).data("jGrowl").pause == undefined || $(this).data("jGrowl").pause != true)) {
                    $(this).trigger('jGrowl.close');
                }
            });

            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() {
                jQuery(e).data('jGrowl.instance').update();
            }, this.defaults.check);

            if ($.browser.msie && parseInt($.browser.version) < 7 && !window["XMLHttpRequest"]) $(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() {
            $('div.jGrowl-notification').trigger('jGrowl.close');
        }


    });

    /** Reference the Defaults Object for compatibility with older versions of jGrowl **/
    $.jGrowl.defaults = $.fn.jGrowl.prototype.defaults;
    $.jGrowl.shutdown = $.fn.jGrowl.prototype.shutdown;
    $.jGrowl.close = $.fn.jGrowl.prototype.close;

})(jQuery);