/*
 * jQuery.BiggerLink v2.0.1
 * http://www.ollicle.com/eg/jquery/biggerlink/
 *
 * Copyright (c) 2009 Oliver Boermans
 * http://creativecommons.org/licenses/MIT/
 *
 * 2009-11-22 (22 Nov 2009)
*/ 
(function($) {
  $.fn.biggerlink = function(options) {

    // Default settings
    var settings = {
      biggerclass:'bl-bigger',  // class added to the first contained link and others that trigger it
      hoverclass:'bl-hover',    // class added to parent element on hover/focus
      hoverclass2:'bl-hover2',  // class added to parent element on hover/focus of other links
      clickableclass:'bl-hot',  // class added to parent element with behaviour
      otherstriggermaster: true,  // will all links in containing biggerlink element trigger the first link
      follow: 'auto'        // follow master link on click? : 'auto',true,false
    };
    if(options) {
      $.extend(settings, options);
    }
    $(this).filter(function(){
       return $('a',this).length > 0;

    }).addClass(settings.clickableclass).css('cursor', 'pointer').each(function(i){
      
      // store element references
      var big = $(this).data('biggerlink',{hovered:false,focused:false,hovered2:false,focused2:false});
      var links = {
        all: $('a',this),
        big: $(this),
        master: $('a:first',this).data('biggerlink',{status:'master'}).addClass(settings.biggerclass),
        other: $('a',this).not($('a:first',this)).data('biggerlink',{status:'other'})
      };
      
      
      $('a',this).andSelf().each(function(){
        var newdata = $.extend($(this).data('biggerlink'),links);
        $(this).data('biggerlink',newdata);
      });
      
      
      
      // Add title of first link with title to parent if not already set
      var thistitle = big.attr('title');
      var newtitle = big.data('biggerlink').master.attr('title');
      if(newtitle && !thistitle)
      {
        big.attr('title', newtitle);
      }
      


    // events on biggerlink element
    
    big
      .mouseover(function(event){
        window.status = $(this).data('biggerlink').master.get(0).href;
        $(this).addClass(settings.hoverclass);
        $(this).data('biggerlink').hovered = true;
      })
      .mouseout(function(event){
        window.status = '';
        if(!$(this).data('biggerlink').focused)
        {
          $(this).removeClass(settings.hoverclass);
        }
        $(this).data('biggerlink').hovered = false;
      })
      .bind('click',function(event){

        // if clicked direct or non-link
        if(!$(event.target).closest('a').length)
        {
          $(this).data('biggerlink').master.trigger({type:'click',source:'biggerlink'});
          event.stopPropagation();
        }
      });
      
      
      
      // focus/blur
      
      links.all
      .bind('focus',function(){
        $(this).data('biggerlink').big.addClass(settings.hoverclass);
        $(this).data('biggerlink').big.data('biggerlink').focused = true;
      }).bind('blur',function(){
        if(!$(this).data('biggerlink').big.data('biggerlink').hovered)
        {
          $(this).data('biggerlink').big.removeClass(settings.hoverclass);
        }
        $(this).data('biggerlink').big.data('biggerlink').focused = false;
      });
      
    
      
      // click/focus/blur event on master (first) link within biggerlink
    
      links.master
      .bind('click',function(event){
        if(event.source == 'biggerlink')
        {
          if(settings.follow === true || settings.follow == 'auto' && event.result !== false)
          {
            window.location = $(this).attr('href');
          }
          else
          {
            event.stopPropagation();
          }
        }
      });
      
      
      // links other than the first (master) link also within biggerlink
      
      // other links are independent
      if(settings.otherstriggermaster)
      {
        links.other.addClass(settings.biggerclass)
        .bind('click',function(event){
          // trigger click events on master link instead
          $(this).data('biggerlink').master.trigger({type:'click',source:'biggerlink'});
          
          // stop this link being followed
          event.preventDefault();
          
          // prevent events on parent elements being triggered
          event.stopPropagation();
        });
      }
      
      // other links are slaves of master link 
      else
      {
        links.other
        .bind('focus',function(){
          $(this).data('biggerlink').big.addClass(settings.hoverclass2);
          $(this).data('biggerlink').big.data('biggerlink').focused2 = true;
        })
        .bind('blur',function(){
          if(!$(this).data('biggerlink').big.data('biggerlink').hovered2)
          {
            $(this).data('biggerlink').big.removeClass(settings.hoverclass2);
          }
          $(this).data('biggerlink').big.data('biggerlink').focused2 = false;
          
        })
        .bind('mouseover',function(event){
          $(this).data('biggerlink').big.addClass(settings.hoverclass2);
          $(this).data('biggerlink').big.data('biggerlink').hovered2 = true;
          event.stopPropagation();
        })
        .bind('mouseout',function(event){
          if(!$(this).data('biggerlink').big.data('biggerlink').focused2)
          {
            $(this).data('biggerlink').big.removeClass(settings.hoverclass2);
          }
          $(this).data('biggerlink').big.data('biggerlink').hovered2 = false;
          event.stopPropagation();
        });
        
        if(!links.other.attr('title'))
        {
          links.other.attr('title','');
        }
      }
    });
    return this;
  };
})(jQuery);