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