konami as a special event

gistfile1.js

/**
 * konami cheat code as a jQuery special event - *not* a demo of how small
 * I could take the code, since this is tons smaller: 
 * http://www.newmediacampaigns.com/page/konami-code-jquery-plugin-pointlessly-easy
 * !!! :-)
 * 
 * I should add, I'm almost certain someone else has done this already!
 */
(function ($) {

var konami = '38 38 40 40 37 39 37 39 66 65';

$.event.special.cheat = {
  setup: function (data, namespace) {
    $(this).bind("keydown", $.event.special.cheat.handler);
  },
  
  teardown: function (namespace) {
    $(this).unbind("keydown", $.event.special.cheat.handler);
  },
  
  add: function(details) {
    // get the required number of clicks from data
    var handler   = details.handler,
        data      = details.data,
        code      = data.code || konami,
        keys      = [];

    if (/[a-z]/i.test(code)) {
      code = $.map(code.toUpperCase().split(''), function (letter) {
        return letter.charCodeAt(0);
      }).join(' ');
    }

    // return a new function that will become the handler
    details.handler = function(event) {
      keys.push(event.which);
      if (keys.join(' ').indexOf(code) >= 0) {
        keys = [];
        event.type = 'cheat';
        handler.apply(this, arguments);
      }
    };
  },
  
  handler: function (event) {
    event.type = 'cheat';
    $.event.handle.apply( this, arguments );
  }
};

$.event.special.konami = {
  setup: function (data, namespace, handler) {
    $(this).bind("cheat", { code: konami }, $.event.special.konami.handler);
  },
  
  teardown: function (namespace) {
    $(this).unbind("cheat", $.event.special.konami.handler);
  },
  
  handler: function (event) {
    event.type = 'konami';
    $.event.handle.apply(this, arguments);
  }
};

})(jQuery);

Remy, you should consider using my special event plugin pattern:
http://benalman.com/news/2010/03/jquery-special-events/#pattern

• Ben

Having read through a few times, I'm not convinced there's any benefit to using that pattern over what I've got already. In fact there's an additional function call over using $.event.special.konami.handler twice.

What's the advantage if I've missed it?

So I forked this. Advantages to my way:

• minifies smaller
• arguably more readable code (triggerHandler feels more clear than $.event.handle.apply)
• no need to specify the event.type
• one less (unnecessary) public method ($.event.special.foo.handler)

And as an aside, i changed the way the cheat-code-as-data is passed, as a string instead of as an object.