//>>excludeStart("exclude", pragmas.exclude);
define([ "shoestring", "events/bind", "events/unbind" ], function(){
//>>excludeEnd("exclude");

	/**
	 * Bind a callback to an event for the currrent set of elements, unbind after one occurence.
	 *
	 * @param {string} event The event(s) to watch for.
	 * @param {function} callback Callback to invoke on the event.
	 * @return shoestring
	 * @this shoestring
	 */
	shoestring.fn.one = function( event, callback ){
		var evts = event.split( " " );

		return this.each(function(){
			var thisevt, cbs = {},	$t = shoestring( this );

			for( var i = 0, il = evts.length; i < il; i++ ){
				thisevt = evts[ i ];

				cbs[ thisevt ] = function( e ){
					var $t = shoestring( this );

					for( var j in cbs ) {
						$t.unbind( j, cbs[ j ] );
					}

					return callback.apply( this, [ e ].concat( e._args ) );
				};

				$t.bind( thisevt, cbs[ thisevt ] );
			}
		});
	};

//>>excludeStart("exclude", pragmas.exclude);
});
//>>excludeEnd("exclude");