superfish.js

/*
 * Superfish v1.4.8 - jQuery menu widget
 * Copyright (c) 2008 Joel Birch
 *
 * Dual licensed under the MIT and GPL licenses:
 *  http://www.opensource.org/licenses/mit-license.php
 *  http://www.gnu.org/licenses/gpl.html
 *
 * CHANGELOG: http://users.tpg.com.au/j_birch/plugins/superfish/changelog.txt
 */
/*
 * This is not the original jQuery Superfish plugin.
 * Please refer to the README for more information.
 */

(function($){
  $.fn.superfish = function(op){
    var sf = $.fn.superfish,
      c = sf.c,
      $arrow = $(['<span class="',c.arrowClass,'"> &#187;</span>'].join('')),
      over = function(){
        var $$ = $(this), menu = getMenu($$);
        clearTimeout(menu.sfTimer);
        $$.showSuperfishUl().siblings().hideSuperfishUl();
      },
      out = function(){
        var $$ = $(this), menu = getMenu($$), o = sf.op;
        clearTimeout(menu.sfTimer);
        menu.sfTimer=setTimeout(function(){
          if ($$.children('.sf-clicked').length == 0){
            o.retainPath=($.inArray($$[0],o.$path)>-1);
            $$.hideSuperfishUl();
            if (o.$path.length && $$.parents(['li.',o.hoverClass].join('')).length<1){over.call(o.$path);}
          }
        },o.delay);
      },
      getMenu = function($menu){
        var menu = $menu.parents(['ul.',c.menuClass,':first'].join(''))[0];
        sf.op = sf.o[menu.serial];
        return menu;
      },
      addArrow = function($a){ $a.addClass(c.anchorClass).append($arrow.clone()); };

    return this.each(function() {
      var s = this.serial = sf.o.length;
      var o = $.extend({},sf.defaults,op);
      o.$path = $('li.'+o.pathClass,this).slice(0,o.pathLevels),
      p = o.$path;
      for (var l = 0; l < p.length; l++){
        p.eq(l).addClass([o.hoverClass,c.bcClass].join(' ')).filter('li:has(ul)').removeClass(o.pathClass);
      }
      sf.o[s] = sf.op = o;

      $('li:has(ul)',this)[($.fn.hoverIntent && !o.disableHI) ? 'hoverIntent' : 'hover'](over,out).each(function() {
        if (o.autoArrows) addArrow( $(this).children('a:first-child, span.nolink:first-child') );
      })
      .not('.'+c.bcClass)
        .hideSuperfishUl();

      var $a = $('a, span.nolink',this);
      $a.each(function(i){
        var $li = $a.eq(i).parents('li');
        $a.eq(i).focus(function(){over.call($li);}).blur(function(){out.call($li);});
      });
      o.onInit.call(this);

    }).each(function() {
      var menuClasses = [c.menuClass],
      addShadow = true;
      if ($.browser !== undefined){
        if ($.browser.msie && $.browser.version < 7){
          addShadow = false;
        }
      }
      if (sf.op.dropShadows && addShadow){
        menuClasses.push(c.shadowClass);
      }
      $(this).addClass(menuClasses.join(' '));
    });
  };

  var sf = $.fn.superfish;
  sf.o = [];
  sf.op = {};
  sf.IE7fix = function(){
    var o = sf.op;
    if ($.browser !== undefined){
      if ($.browser.msie && $.browser.version > 6 && o.dropShadows && o.animation.opacity != undefined) {
        this.toggleClass(sf.c.shadowClass+'-off');
      }
    }
  };
  sf.c = {
    bcClass: 'sf-breadcrumb',
    menuClass: 'sf-js-enabled',
    anchorClass: 'sf-with-ul',
    arrowClass: 'sf-sub-indicator',
    shadowClass: 'sf-shadow'
  };
  sf.defaults = {
    hoverClass: 'sfHover',
    pathClass: 'overideThisToUse',
    pathLevels: 1,
    delay: 800,
    animation: {opacity:'show'},
    speed: 'fast',
    autoArrows: true,
    dropShadows: true,
    disableHI: false, // true disables hoverIntent detection
    onInit: function(){}, // callback functions
    onBeforeShow: function(){},
    onShow: function(){},
    onHide: function(){}
  };
  $.fn.extend({
    hideSuperfishUl : function(){
      var o = sf.op,
        not = (o.retainPath===true) ? o.$path : '';
      o.retainPath = false;
      var $ul = $(['li.',o.hoverClass].join(''),this).add(this).not(not).removeClass(o.hoverClass)
          .children('ul').addClass('sf-hidden');
      o.onHide.call($ul);
      return this;
    },
    showSuperfishUl : function(){
      var o = sf.op,
        sh = sf.c.shadowClass+'-off',
        $ul = this.addClass(o.hoverClass)
          .children('ul.sf-hidden').hide().removeClass('sf-hidden');
      sf.IE7fix.call($ul);
      o.onBeforeShow.call($ul);
      $ul.animate(o.animation,o.speed,function(){ sf.IE7fix.call($ul); o.onShow.call($ul); });
      return this;
    }
  });
})(jQuery);