Book Image

Mastering Ext JS

By : Loiane Groner
Book Image

Mastering Ext JS

By: Loiane Groner

Overview of this book

<p>Ext JS 4 is a JavaScript framework that provides you with the resources to build multi-browser, high-performance, and rich Internet applications.<br /><br />Mastering Ext JS is a practical, hands-on guide that will teach you how to develop a complete application with Ext JS. You’ll begin by learning how to create the project’s structure and login screen before mastering advanced level features such as dynamic menus and master-detail grids, before finally preparing the application for production.<br /><br />Mastering Ext JS will help you to utilize Ext JS to its full potential and will show you how to create a complete Ext JS application from the scratch, as well as explaining how to create a Wordpress theme.</p> <p><br />You will learn how to create user and group security, master-detail grids and forms, charts, trees, and how to export data to excel including PDF and images, always focusing on best practices.</p> <p><br />You will also learn how to customize themes and how to prepare the application to be ready for deployment upon completion. Each chapter of the book is focused on one task and helps you understand and master an individual aspect of the application.</p> <p><br />By the end of the book, you will have learned everything you need to know to truly master Ext JS and to start building advanced applications.</p>
Table of Contents (20 chapters)
Mastering Ext JS
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Creating the login controller


We have created the view for the Login screen so far. As we are following the MVC architecture, we are not implementing the user interaction on the View class. If we click on the buttons on the Login class, nothing will happen because we have not yet implemented this logic. We are going to implement this logic now on the controller class.

Under the app/controller directory, we will create a new file named Login.js. In this file we will implement all the code related to the events management of the Login screen.

Inside the Login.js file we will implement the following code, which is only a base of the controller class we are going to implement:

Ext.define('Packt.controller.Login', { // #1
    extend: 'Ext.app.Controller',      // #2

    views: [
        'Login'                        // #3
    ],

    init: function(application) {      // #4
        this.control({                 // #5
            
        });
    }
});

As usual, on the first line of the class we...