BaseItem.js
资源名称:ext-3.0.0.zip [点击查看]
上传用户:shuoshiled
上传日期:2018-01-28
资源大小:10124k
文件大小:5k
源码类别:
中间件编程
开发平台:
JavaScript
- /*!
- * Ext JS Library 3.0.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
- /**
- * @class Ext.menu.BaseItem
- * @extends Ext.Component
- * The base class for all items that render into menus. BaseItem provides default rendering, activated state
- * management and base configuration options shared by all menu components.
- * @constructor
- * Creates a new BaseItem
- * @param {Object} config Configuration options
- * @xtype menubaseitem
- */
- Ext.menu.BaseItem = function(config){
- Ext.menu.BaseItem.superclass.constructor.call(this, config);
- this.addEvents(
- /**
- * @event click
- * Fires when this item is clicked
- * @param {Ext.menu.BaseItem} this
- * @param {Ext.EventObject} e
- */
- 'click',
- /**
- * @event activate
- * Fires when this item is activated
- * @param {Ext.menu.BaseItem} this
- */
- 'activate',
- /**
- * @event deactivate
- * Fires when this item is deactivated
- * @param {Ext.menu.BaseItem} this
- */
- 'deactivate'
- );
- if(this.handler){
- this.on("click", this.handler, this.scope);
- }
- };
- Ext.extend(Ext.menu.BaseItem, Ext.Component, {
- /**
- * @property parentMenu
- * @type Ext.menu.Menu
- * The parent Menu of this Item.
- */
- /**
- * @cfg {Function} handler
- * A function that will handle the click event of this menu item (optional).
- * The handler is passed the following parameters:<div class="mdetail-params"><ul>
- * <li><code>b</code> : Item<div class="sub-desc">This menu Item.</div></li>
- * <li><code>e</code> : EventObject<div class="sub-desc">The click event.</div></li>
- * </ul></div>
- */
- /**
- * @cfg {Object} scope
- * The scope (<tt><b>this</b></tt> reference) in which the handler function will be called.
- */
- /**
- * @cfg {Boolean} canActivate True if this item can be visually activated (defaults to false)
- */
- canActivate : false,
- /**
- * @cfg {String} activeClass The CSS class to use when the item becomes activated (defaults to "x-menu-item-active")
- */
- activeClass : "x-menu-item-active",
- /**
- * @cfg {Boolean} hideOnClick True to hide the containing menu after this item is clicked (defaults to true)
- */
- hideOnClick : true,
- /**
- * @cfg {Number} clickHideDelay Length of time in milliseconds to wait before hiding after a click (defaults to 100)
- */
- clickHideDelay : 1,
- // private
- ctype : "Ext.menu.BaseItem",
- // private
- actionMode : "container",
- // private
- onRender : function(container, position){
- Ext.menu.BaseItem.superclass.onRender.apply(this, arguments);
- if(this.ownerCt && this.ownerCt instanceof Ext.menu.Menu){
- this.parentMenu = this.ownerCt;
- }else{
- this.container.addClass('x-menu-list-item');
- this.mon(this.el, 'click', this.onClick, this);
- this.mon(this.el, 'mouseenter', this.activate, this);
- this.mon(this.el, 'mouseleave', this.deactivate, this);
- }
- },
- /**
- * Sets the function that will handle click events for this item (equivalent to passing in the {@link #handler}
- * config property). If an existing handler is already registered, it will be unregistered for you.
- * @param {Function} handler The function that should be called on click
- * @param {Object} scope The scope that should be passed to the handler
- */
- setHandler : function(handler, scope){
- if(this.handler){
- this.un("click", this.handler, this.scope);
- }
- this.on("click", this.handler = handler, this.scope = scope);
- },
- // private
- onClick : function(e){
- if(!this.disabled && this.fireEvent("click", this, e) !== false
- && (this.parentMenu && this.parentMenu.fireEvent("itemclick", this, e) !== false)){
- this.handleClick(e);
- }else{
- e.stopEvent();
- }
- },
- // private
- activate : function(){
- if(this.disabled){
- return false;
- }
- var li = this.container;
- li.addClass(this.activeClass);
- this.region = li.getRegion().adjust(2, 2, -2, -2);
- this.fireEvent("activate", this);
- return true;
- },
- // private
- deactivate : function(){
- this.container.removeClass(this.activeClass);
- this.fireEvent("deactivate", this);
- },
- // private
- shouldDeactivate : function(e){
- return !this.region || !this.region.contains(e.getPoint());
- },
- // private
- handleClick : function(e){
- if(this.hideOnClick){
- this.parentMenu.hide.defer(this.clickHideDelay, this.parentMenu, [true]);
- }
- },
- // private. Do nothing
- expandMenu : Ext.emptyFn,
- // private. Do nothing
- hideMenu : Ext.emptyFn
- });
- Ext.reg('menubaseitem', Ext.menu.BaseItem);