# Item.js

    /**
     * @class Ext.menu.Item
     * @extends Ext.menu.BaseItem
     * A base class for all menu items that require menu-related functionality (like sub-menus) and are not static
     * display items.  Item extends the base functionality of {@link Ext.menu.BaseItem} by adding menu-specific
     * activation and click handling.
     * @constructor
     * Creates a new Item
     * @param {Object} config Configuration options
     */
    Ext.menu.Item = function(config){
        Ext.menu.Item.superclass.constructor.call(this, config);
        if(this.menu){
            this.menu = Ext.menu.MenuMgr.get(this.menu);
        }
    };
    Ext.extend(Ext.menu.Item, Ext.menu.BaseItem, {
        /**
         * @cfg {String} icon
         * The path to an icon to display in this menu item (defaults to Ext.BLANK_IMAGE_URL)
         */
    // holder
    /***
         * @cfg {String} itemCls The default CSS class to use for menu items (defaults to "x-menu-item")
         */
        itemCls : "x-menu-item",
        /**
         * @cfg {Boolean} canActivate True if this item can be visually activated (defaults to true)
         */
        canActivate : true,

        // private
        ctype: "Ext.menu.Item",

        showDelay: 200,
        hideDelay: 200,

        // private
        onRender : function(container, position){
            var el = document.createElement("a");
            el.hideFocus = true;
            el.unselectable = "on";
            el.href = this.href || "#";
            if(this.hrefTarget){
                el.target = this.hrefTarget;
            }
            el.className = this.itemCls + (this.menu ?  " x-menu-item-arrow" : "") + (this.cls ?  " " + this.cls : "");
            el.innerHTML = String.format(
                    '<img src="{0}" class="x-menu-item-icon {2}" />{1}',
                    this.icon || Ext.BLANK_IMAGE_URL, this.text, this.iconCls || '');
            this.el = el;
            Ext.menu.Item.superclass.onRender.call(this, container, position);
        },

        /**
         * Sets the text to display in this menu item
         * @param {String} text The text to display
         */
        setText : function(text){
            this.text = text;
            if(this.rendered){
                this.el.update(String.format(
                    '<img src="{0}" class="x-menu-item-icon {2}">{1}',
                    this.icon || Ext.BLANK_IMAGE_URL, this.text, this.iconCls || ''));
                this.parentMenu.autoWidth();
            }
        },

        // private
        handleClick : function(e){
            if(!this.href){ // if no link defined, stop the event automatically
                e.stopEvent();
            }
            Ext.menu.Item.superclass.handleClick.apply(this, arguments);
        },

        // private
        activate : function(autoExpand){
            if(Ext.menu.Item.superclass.activate.apply(this, arguments)){
                this.focus();
                if(autoExpand){
                    this.expandMenu();
                }
            }
            return true;
        },

        // private
        shouldDeactivate : function(e){
            if(Ext.menu.Item.superclass.shouldDeactivate.call(this, e)){
                if(this.menu && this.menu.isVisible()){
                    return !this.menu.getEl().getRegion().contains(e.getPoint());
                }
                return true;
            }
            return false;
        },

        // private
        deactivate : function(){
            Ext.menu.Item.superclass.deactivate.apply(this, arguments);
            this.hideMenu();
        },

        // private
        expandMenu : function(autoActivate){
            if(!this.disabled && this.menu){
                clearTimeout(this.hideTimer);
                delete this.hideTimer;
                if(!this.menu.isVisible() && !this.showTimer){
                    this.showTimer = this.deferExpand.defer(this.showDelay, this, [autoActivate]);
                }else if (this.menu.isVisible() && autoActivate){
                    this.menu.tryActivate(0, 1);
                }
            }
        },

        deferExpand : function(autoActivate){
            delete this.showTimer;
            this.menu.show(this.container, this.parentMenu.subMenuAlign || "tl-tr?", this.parentMenu);
            if(autoActivate){
                this.menu.tryActivate(0, 1);
            }
        },

        // private
        hideMenu : function(){
            clearTimeout(this.showTimer);
            delete this.showTimer;
            if(!this.hideTimer && this.menu && this.menu.isVisible()){
                this.hideTimer = this.deferHide.defer(this.hideDelay, this);
            }
        },

        deferHide : function(){
            delete this.hideTimer;
            this.menu.hide();
        }
    });

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