/**
 * jGrowl 1.2.5
 *
 * 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: 2009.12.15
 *
 * 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 1.2.5
 * - 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;

      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');

            $(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() {
          $(this).remove();
          var close = o.close.apply( notification , [notification,message,o,self.element] );

          if ( $.isFunction(close) )
            close.apply( notification , [notification,message,o,self.element] );
        });
      }).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 ui-state-highlight 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) < 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() {
      $(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);