MVC implementation and particle view rendering

agr

Hello.
We just started to use\learn enyo for smartTV and not all the info could be found in docs. The current goal is to implement N -panels (displays, windows) for TV application which would be changed after button was pressed (channel switch for instance). It looks just like simple redirect to new URL (or controller's action). The existing behavior of moon.Panels is not enought, because it keeps alive all the windows and eats the memory. So, we want to re-render views and update windows(panels) using strategy of keeping just 2 displays at the same time (current and next we go with animation). I learned some examples of MVC with enyo from stackoverflow, but that implementations (by the meanings of their authors) of MVC with a lot of hacks and anemic model anti-patterns.

Problem: how to implement in enyo the particle updating of the view with new data from controller ?

//--- app.js
enyo.kind({
	name: "my.Application",
	kind: "enyo.Application",
	view: "Index", // default start view	
	controllers: [ // I use 2.3 version and know about this rudiment property.
	      		{name: "homeController", kind: "HomeController"}	      		
	      	],	      	
	viewChanged : function() { 
		this.inherited(arguments); 
		app.render();  // this updates the view. Changes from index to edit and back. 
	}	
});

enyo.ready(function () {
	app = new my.Application({name: "app"});
});


//------  controller.js + IndexView.js + editview.JS


enyo.kind({
	name : "IndexView",
	kind: "enyo.View",
	components: [
	             {content: "HelloWorld,  This is Index"},
	             {content: "This is the Index view"},
	             {kind: "moon.ToggleButton", content: "Show Edit", ontap: "buttonTapped"}
	             ],
	// redirect to Edit View
	buttonTapped: function(sender, event){
		app.controllers.homeController.Edit("message(model) to Edit View");
	}
	
});


enyo.kind({
	name : "EditView",
	kind: "enyo.View",
	message: "no msg",
	components: [
	             {name: "headWithId", content: "Hello! This is EDIT."},
	             {content: "This is the Edit view"},
	             {kind: "moon.ToggleButton", content: "Show Index", ontap: "buttonTapped"}
	],
	
	bindings: [
	          {from: ".message", to:".$.headWithId.content"}
	],
	
	// redirect to Index View
	buttonTapped: function(sender, event){				
		app.controllers.homeController.Index();		
	}
});


enyo.kind({
	name : "HomeController",
	kind: "enyo.Controller",
	
	Index : function(){		
		app.set("view", new  IndexView()); // this code updates the view of app, but maybe there is a better way to do it?		
	},
	
	Edit : function(msg){
		app.set("view", new  EditView({message: msg}));		
	}
	
});

The previous code works find. There some question in comments. But how to implement such situation, then I don't want to rerender all the divs of the view, but just particle content (for example, leave the header and update the content):

// ----- baselayoutview.js

enyo.kind({
	name : "BaseLayout",
	kind: "enyo.ViewController", // or enyo.View... what is better?
	components: [
	             {content: "this content of the  View never changes"},
                     // next content should be changed. It's for renderTarget 
	             {name: "RenderContentSection"} // How to render new content form Index or Edit view here?
	        ]

});

// ----- app.js

enyo.kind({
	name: "my.Application",
	kind: "enyo.Application",
	view: "BaseLayout",  // We set this base layout view and expect the it will fill it's content by itself	
	
	controllers: [
	      		{name: "homeController", kind: "HomeController"}	      		
	      	],
	      	
	viewChanged : function() { 
		this.inherited(arguments); 
		app.render("RenderContentSection");  // I think it would not be working any more.. but what it the best way to do it? How to update BaseLayout view's RenderContentSection ?
	}
	
});

Any other recommendations?
Thanks!