Firing custom event from custom component and handle event in viewController - extjs

Question

I have created a custom component that extends from Ext.Panel. I have added a click listener to the custom component so that when it's clicked it will fire an event. I am instantiating the custom component in a view and I want to handle the event thats fired from the custom component in the viewController associated with that view.
However, when I fire the event, it's not bubbling up to the viewController. Is there a way to fire an event on the global scope? How do I go about handling an event in a viewController where the component that fires the event is instantiated in the view associated with the view controller?
My custom component looks somthing like so:
Ext.define('MyApp.ux.CustomComponent', {
extend: 'Ext.Panel',
xtype: 'custom-component'
initComponent: function() {
var me = this;
me.callParent();
me.addListener({
'render': function(panel) {
panel.body.on('click', function() {
me.fireEvent('customEventName');
});
}
});
}
});
I am instantiating my custom component in a view like so:
Ext.define('MyApp.view.main.Main', {
extend: 'Ext.container.Container',
controller: 'main'
items: [{
xtype: 'custom-component'
}]
});
And in my viewController (for the view that im instantiating my custom component in) I have the following listener:
customEventName: function () {
console.log('I have been fired');
}

Answer 1

View controllers listen for child item listeners, but not manually fired events. So, you need to use listener config for this like this e.g.
Ext.define('MyApp.view.main.Main', {
extend: 'Ext.container.Container',
controller: 'main'
items: [{
xtype: 'custom-component',
listeners: {
customEventName: 'customHandlerNameInController'
}
}]
});
Now when you fire your custom event, your view controller method must work.

Answer 2

To fire events globally, you can use:
Ext.GlobalEvents.fireEvent('eventName', {args});
http://docs.sencha.com/extjs/6.0/6.0.0-classic/#!/api/Ext.GlobalEvents-method-fireEvent
Edit:
You can try a workaround:
Ext.GlobalEvents.fireEvent('customEventName');
In your controller:
listen: {
global: {
'customEventName': 'onClick'
}
}
onClick: function(){
Ext.log('click happened');
}