overview of extending jQuery UI widgets in 1.8

jquery-ui-v.1.8.js

(function($, _super){

    $.widget('bartels.myDialog', $.ui.dialog, {
        options: {
            someKey: undefined
        },

        _create: function () {
            _super._create.call(this);
            this.updateSomeKey(this.options.someKey);
        },

        open: function () {
            console.log("Open dialog");
            return _super.open.apply(this, arguments);
        },

        updateSomeKey: function (value) {
            console.log("Update someKey: ", value);
        },

        _setOption: function( key, value ) {
          switch( key ) {
            case "someKey":
                this.updateSomeKey(someKey);
              break;
          }

          _super._setOption.apply( this, arguments );
        },

        destroy: function() {
          _super.destroy.call(this);
        }
    });
})(jQuery, jQuery.ui.dialog.prototype);