source: Dev/trunk/src/client/dojox/mobile/Badge.js

define([
        "dojo/_base/declare",
        "dojo/_base/lang",
        "dojo/dom-class",
        "dojo/dom-construct",
        "./iconUtils",
        "dojo/has",
        "dojo/has!dojo-bidi?dojox/mobile/bidi/Badge"
], function(declare, lang, domClass, domConstruct, iconUtils, has, BidiBadge){
        // module:
        //              dojox/mobile/Badge

        var Badge = declare(has("dojo-bidi") ? "dojox.mobile.NonBidiBadge" : "dojox.mobile.Badge", null, {
                // summary:
                //              A utility class to create and update a badge node.
                // description:
                //              Badge is not a widget, but a simple utility class for creating and 
                //              updating a badge node. A badge consists of a simple DOM button. 
                //              It is intended to be used from other widgets such as dojox/mobile/IconItem 
                //              or dojox/mobile/TabBarButton.

                // value: [const] String
                //              A text to show in a badge.
                //              Note that changing the value of the property after the badge
                //              creation has no effect.
                value: "0",

                // className: [const] String
                //              A CSS class name of a DOM button.
                className: "mblDomButtonRedBadge",

                // fontSize: [const] Number
                //              Font size in pixel. The other style attributes are determined by the DOM
                //              button itself.
                //              Note that changing the value of the property after the badge
                //              creation has no effect.
                fontSize: 16, // [px]

                constructor: function(/*Object?*/params, /*DomNode?*/node){
                        // summary:
                        //              Creates a new instance of the class.
                        // params:
                        //              Contains properties to be set.
                        // node:
                        //              The DOM node. If none is specified, it is automatically created. 
                        if (params){
                                lang.mixin(this, params);
                        }
                        this.domNode = node ? node : domConstruct.create("div");
                        domClass.add(this.domNode, "mblBadge");
                        if(this.domNode.className.indexOf("mblDomButton") === -1){
                                domClass.add(this.domNode, this.className);
                        }
                        if(this.fontSize !== 16){
                                this.domNode.style.fontSize = this.fontSize + "px";
                        }
                        iconUtils.createDomButton(this.domNode);
                        this.setValue(this.value);
                },

                getValue: function(){
                        // summary:
                        //              Returns the text shown in the badge.
                        return this.domNode.firstChild.innerHTML || "";
                },

                setValue: function(/*String*/value){
                        // summary:
                        //              Set a label text to the badge.
                        this.domNode.firstChild.innerHTML = value;
                }
        });

        return has("dojo-bidi") ? declare("dojox.mobile.Badge", [Badge, BidiBadge]) : Badge;
});