source: Dev/trunk/src/client/dojox/form/manager/_ClassMixin.js

define([
        "dojo/_base/lang",
        "dojo/_base/kernel",
        "dojo/dom-class",
        "./_Mixin",
        "dojo/_base/declare"
], function(lang, dojo, domClass, _Mixin, declare){
        var fm = lang.getObject("dojox.form.manager", true),
                aa = fm.actionAdapter,
                ia = fm.inspectorAdapter;

        return declare("dojox.form.manager._ClassMixin", null, {
                // summary:
                //              Form manager's mixin for testing/assigning/removing
                //              classes of controlled elements.
                // description:
                //              This mixin provides unified way to check/add/remove a class
                //              of controlled elements.
                //              It should be used together with dojox.form.manager.Mixin.

                gatherClassState: function(className, names){
                        // summary:
                        //              Gather the presence of a certain class in all controlled elements.
                        // className: String
                        //              The class name to test for.
                        // names: Object?
                        //              If it is an array, it is a list of names to be processed.
                        //              If it is an object, dictionary keys are names to be processed.
                        //              If it is omitted, all known form elements are to be processed.

                        var result = this.inspect(ia(function(name, node){
                                return domClass.contains(node, className);
                        }), names);

                        return result;  // Object
                },

                addClass: function(className, names){
                        // summary:
                        //              Add a class to nodes according to the supplied set of names
                        // className: String
                        //              Class name to add.
                        // names: Object?
                        //              If it is an array, it is a list of names to be processed.
                        //              If it is an object, dictionary keys are names to be processed.
                        //              If it is omitted, all known form elements are to be processed.

                        this.inspect(aa(function(name, node){
                                domClass.add(node, className);
                        }), names);

                        return this;    // self
                },

                removeClass: function(className, names){
                        // summary:
                        //              Remove a class from nodes according to the supplied set of names
                        // className: String
                        //              Class name to remove.
                        // names: Object?
                        //              If it is an array, it is a list of names to be processed.
                        //              If it is an object, dictionary keys are names to be processed.
                        //              If it is omitted, all known form elements are to be processed.

                        this.inspect(aa(function(name, node){
                                domClass.remove(node, className);
                        }), names);

                        return this;    // self
                }
        });
});