app/assets/javascripts/ext/src/widgets/menu/Item.js
/*!
* Ext JS Library 3.3.0
* Copyright(c) 2006-2010 Ext JS, Inc.
* licensing@extjs.com
* http://www.extjs.com/license
*/
/**
* @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
* @xtype menuitem
*/
Ext.menu.Item = Ext.extend(Ext.menu.BaseItem, {
/**
* @property menu
* @type Ext.menu.Menu
* The submenu associated with this Item if one was configured.
*/
/**
* @cfg {Mixed} menu (optional) Either an instance of {@link Ext.menu.Menu} or the config object for an
* {@link Ext.menu.Menu} which acts as the submenu when this item is activated.
*/
/**
* @cfg {String} icon The path to an icon to display in this item (defaults to Ext.BLANK_IMAGE_URL). If
* icon is specified {@link #iconCls} should not be.
*/
/**
* @cfg {String} iconCls A CSS class that specifies a background image that will be used as the icon for
* this item (defaults to ''). If iconCls is specified {@link #icon} should not be.
*/
/**
* @cfg {String} text The text to display in this item (defaults to '').
*/
/**
* @cfg {String} href The href attribute to use for the underlying anchor link (defaults to '#').
*/
/**
* @cfg {String} hrefTarget The target attribute to use for the underlying anchor link (defaults to '').
*/
/**
* @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,
/**
* @cfg {Number} showDelay Length of time in milliseconds to wait before showing this item (defaults to 200)
*/
showDelay: 200,
/**
* @cfg {String} altText The altText to use for the icon, if it exists. Defaults to <tt>''</tt>.
*/
altText: '',
// doc'd in BaseItem
hideDelay: 200,
// private
ctype: 'Ext.menu.Item',
initComponent : function(){
Ext.menu.Item.superclass.initComponent.call(this);
if(this.menu){
this.menu = Ext.menu.MenuMgr.get(this.menu);
this.menu.ownerCt = this;
}
},
// private
onRender : function(container, position){
if (!this.itemTpl) {
this.itemTpl = Ext.menu.Item.prototype.itemTpl = new Ext.XTemplate(
'<a id="{id}" class="{cls}" hidefocus="true" unselectable="on" href="{href}"',
'<tpl if="hrefTarget">',
' target="{hrefTarget}"',
'</tpl>',
'>',
'<img alt="{altText}" src="{icon}" class="x-menu-item-icon {iconCls}"/>',
'<span class="x-menu-item-text">{text}</span>',
'</a>'
);
}
var a = this.getTemplateArgs();
this.el = position ? this.itemTpl.insertBefore(position, a, true) : this.itemTpl.append(container, a, true);
this.iconEl = this.el.child('img.x-menu-item-icon');
this.textEl = this.el.child('.x-menu-item-text');
if(!this.href) { // if no link defined, prevent the default anchor event
this.mon(this.el, 'click', Ext.emptyFn, null, { preventDefault: true });
}
Ext.menu.Item.superclass.onRender.call(this, container, position);
},
getTemplateArgs: function() {
return {
id: this.id,
cls: this.itemCls + (this.menu ? ' x-menu-item-arrow' : '') + (this.cls ? ' ' + this.cls : ''),
href: this.href || '#',
hrefTarget: this.hrefTarget,
icon: this.icon || Ext.BLANK_IMAGE_URL,
iconCls: this.iconCls || '',
text: this.itemText||this.text||' ',
altText: this.altText || ''
};
},
/**
* 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.textEl.update(this.text);
this.parentMenu.layout.doAutoSize();
}
},
/**
* Sets the CSS class to apply to the item's icon element
* @param {String} cls The CSS class to apply
*/
setIconClass : function(cls){
var oldCls = this.iconCls;
this.iconCls = cls;
if(this.rendered){
this.iconEl.replaceClass(oldCls, this.iconCls);
}
},
//private
beforeDestroy: function(){
if (this.menu){
delete this.menu.ownerCt;
this.menu.destroy();
}
Ext.menu.Item.superclass.beforeDestroy.call(this);
},
// 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);
}
}
},
// private
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);
}
},
// private
deferHide : function(){
delete this.hideTimer;
if(this.menu.over){
this.parentMenu.setActiveItem(this, false);
}else{
this.menu.hide();
}
}
});
Ext.reg('menuitem', Ext.menu.Item);