extjs 4.0 delegate to the parent node on mouse over - extjs

Question

I wanted to to delegate the mouseover/mouseout event to my parent node.
Here in the below code when i roll over to the #mycontent > span.bannerContent, i should delegate my mouseover event to the parents child img#bannerImage.
How i can achieve using extjs
HTML code:
<div>
<img id="bannerImage" />
<div id="mycontent">
<span> my dummy content </span>
</div>
EXtJS code
items : [{
xtype: 'image',
id:'bannerview1',
src: 'images/homePage/banner-1.jpg',
height: 500,
width: 1240,
listeners: {
el: {
click: function(el,src) {
var link =src.src;
if(link.indexOf("banner-1.jpg")!= -1){
window.open("main");
}
}
}
}
},
{
xtype: 'box',
id:'label',
html: '<span class="bannerContent"></span> ',
listeners: {
**el: {
mouseover:function(){
},
mouseout:function(){
}**
}
}
}
]

Answer 1

Normally you can pass an event to any observable using relayEvent, but the problem is, that Ext.dom.Element is not observable (does not know fireEvent method). So either you can listen to mouse events on parent div, hook carousel also on box events or if you insist on relaying events, extend Ext.Img such that it fires mouseout and mouseover events itself (and not its 'el') and then hook your carousel on such events.
Ext.define('My.Img',{
extend: 'Ext.Img',
alias: 'widget.myimage',
initComponent: function(){
var me = this;
me.addEvents('mouseover','mouseout');
me.on('render',function(){
me.getEl().relayEvent('mouseover',me);
me.getEl().relayEvent('mouseout',me);
});
me.callParent();
}
});
var myImage = Ext.create('My.Img',{
id:'bannerview1',
height: 500,
width: 1240,
src: '/img/header_01.gif',
listeners: {
mouseover:function(e){
console.log('mouseover image');
},
mouseout:function(e){
console.log('mouseout image');
}
}
});
Ext.create(' ... ',{
...
items : [ myImage,
{
xtype: 'box',
id:'label',
html: '<span class="bannerContent">blablabla</span> ',
listeners: {
render: function(){
this.getEl().relayEvent('mouseover',myImage);
this.getEl().relayEvent('mouseout',myImage);
}
}
}
]
});
Personally I think that such solution is not very straightforward.