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<html>
<head>
<title>The source code</title>
<link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
<script type="text/javascript" src="../resources/prettify/prettify.js"></script>
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<pre class="prettyprint lang-js">/*!
* Ext JS Library 3.0.3
* Copyright(c) 2006-2009 Ext JS, LLC
* licensing@extjs.com
* http://www.extjs.com/license
*/
<div id="cls-Ext.menu.CheckItem"></div>/**
* @class Ext.menu.CheckItem
* @extends Ext.menu.Item
* Adds a menu item that contains a checkbox by default, but can also be part of a radio group.
* @constructor
* Creates a new CheckItem
* @param {Object} config Configuration options
* @xtype menucheckitem
*/
Ext.menu.CheckItem = function(config){
Ext.menu.CheckItem.superclass.constructor.call(this, config);
this.addEvents(
<div id="event-Ext.menu.CheckItem-beforecheckchange"></div>/**
* @event beforecheckchange
* Fires before the checked value is set, providing an opportunity to cancel if needed
* @param {Ext.menu.CheckItem} this
* @param {Boolean} checked The new checked value that will be set
*/
"beforecheckchange" ,
<div id="event-Ext.menu.CheckItem-checkchange"></div>/**
* @event checkchange
* Fires after the checked value has been set
* @param {Ext.menu.CheckItem} this
* @param {Boolean} checked The checked value that was set
*/
"checkchange"
);
<div id="method-Ext.menu.CheckItem-checkHandler"></div>/**
* A function that handles the checkchange event. The function is undefined by default, but if an implementation
* is provided, it will be called automatically when the checkchange event fires.
* @param {Ext.menu.CheckItem} this
* @param {Boolean} checked The checked value that was set
* @method checkHandler
*/
if(this.checkHandler){
this.on('checkchange', this.checkHandler, this.scope);
}
Ext.menu.MenuMgr.registerCheckable(this);
};
Ext.extend(Ext.menu.CheckItem, Ext.menu.Item, {
<div id="cfg-Ext.menu.CheckItem-group"></div>/**
* @cfg {String} group
* All check items with the same group name will automatically be grouped into a single-select
* radio button group (defaults to '')
*/
<div id="cfg-Ext.menu.CheckItem-itemCls"></div>/**
* @cfg {String} itemCls The default CSS class to use for check items (defaults to "x-menu-item x-menu-check-item")
*/
itemCls : "x-menu-item x-menu-check-item",
<div id="cfg-Ext.menu.CheckItem-groupClass"></div>/**
* @cfg {String} groupClass The default CSS class to use for radio group check items (defaults to "x-menu-group-item")
*/
groupClass : "x-menu-group-item",
<div id="cfg-Ext.menu.CheckItem-checked"></div>/**
* @cfg {Boolean} checked True to initialize this checkbox as checked (defaults to false). Note that
* if this checkbox is part of a radio group (group = true) only the last item in the group that is
* initialized with checked = true will be rendered as checked.
*/
checked: false,
// private
ctype: "Ext.menu.CheckItem",
// private
onRender : function(c){
Ext.menu.CheckItem.superclass.onRender.apply(this, arguments);
if(this.group){
this.el.addClass(this.groupClass);
}
if(this.checked){
this.checked = false;
this.setChecked(true, true);
}
},
// private
destroy : function(){
Ext.menu.MenuMgr.unregisterCheckable(this);
Ext.menu.CheckItem.superclass.destroy.apply(this, arguments);
},
<div id="method-Ext.menu.CheckItem-setChecked"></div>/**
* Set the checked state of this item
* @param {Boolean} checked The new checked value
* @param {Boolean} suppressEvent (optional) True to prevent the checkchange event from firing (defaults to false)
*/
setChecked : function(state, suppressEvent){
if(this.checked != state && this.fireEvent("beforecheckchange", this, state) !== false){
if(this.container){
this.container[state ? "addClass" : "removeClass"]("x-menu-item-checked");
}
this.checked = state;
if(suppressEvent !== true){
this.fireEvent("checkchange", this, state);
}
}
},
// private
handleClick : function(e){
if(!this.disabled && !(this.checked && this.group)){// disable unselect on radio item
this.setChecked(!this.checked);
}
Ext.menu.CheckItem.superclass.handleClick.apply(this, arguments);
}
});
Ext.reg('menucheckitem', Ext.menu.CheckItem);</pre>
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