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

Chapter 3. Logout and Multilingual

In this chapter we are going to implement the multilingual capability of the system. This feature will allow the system to display the translation of the labels according to the language selected by the user (using some of the new HTML 5 features).

We will also learn how to implement the logout capability, so that the user can end the session, and also for security reasons we will learn how to implement a session timeout warning for the user in case of inactivity (not using the mouse or keyboard for a while).

Also, after the user is authenticated we need to display the application. In this chapter we will learn how to implement the base of the application using a Viewport.

So in this chapter, we will cover:

  • The base of the application

  • The logout capability

  • Activity monitoring and the session timeout warning

  • Structuring the application to receive the multilingual capability

  • Creating the change language component

  • Handling the language change at runtime