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Ext JS Application Development Blueprints

You're reading from   Ext JS Application Development Blueprints Develop robust and maintainable projects that exceed client expectations using Ext JS

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Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781784395308
Length 340 pages
Edition 1st Edition
Languages
Tools
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Toc

Table of Contents (13) Chapters Close

Preface 1. Introduction FREE CHAPTER 2. MVC and MVVM 3. Application Structure 4. Sencha Cmd 5. Practical – a CMS Application 6. Practical – Monitoring Dashboard 7. Practical – an E-mail Client 8. Practical – Questionnaire Component 9. A Shopping Application 10. Debugging and Performance 11. Application Testing Index

The main view controller


There isn't a lot of code in this view controller, but the functionality it enables is very important. Let's take a look:

// app/view/main/MainController.js
Ext.define('Instrumatics.view.main.MainController', {
    extend: 'Ext.app.ViewController',
    alias: 'controller.main-main',
    
    routes: {
        ':controller': 'onNavigate'
    },

    listen: {
        component: {
            'tabpanel': {
                tabchange: 'onTabChange'
            }
        }
    },

    onTabChange: function(tab, newCmp, oldCmp) {
        this.redirectTo(newCmp.getReference());
    },

    onNavigate: function(controller) {
        var view = this.getView();

        view.setActiveTab(view.lookupReference(controller));
    }
});

Not much code, to be sure, but a lot going on. This is the part of the application that deals with routing, so let's take a bit of time out to discuss what routing actually is.

Rootin-Tootin

There's a pretty comprehensive description of routing in the...

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