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Vaadin 7 Cookbook

You're reading from   Vaadin 7 Cookbook Take the shortcut to developing rich internet applications in pure Java. Vaadin makes it easy and this cookbook makes it easier still with its practical recipes and straightforward approach.

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Product type Paperback
Published in Apr 2013
Publisher
ISBN-13 9781849518802
Length 404 pages
Edition Edition
Languages
Tools
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Toc

Table of Contents (19) Chapters Close

Vaadin 7 Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Creating a Project in Vaadin 2. Layouts FREE CHAPTER 3. UI Components 4. Custom Widgets 5. Events 6. Messages 7. Working with Forms 8. Spring and Grails Integration 9. Data Management 10. Architecture and Performance 11. Facilitating Development 12. Fun Index

Storing the last selected tab name in cookies


Cookies are small pieces of data that are stored in the user's web browser. They can be considered as a small database. Each cookie is defined by a name and value of String. Cookies have many uses. Perhaps the most common use is user authentication.

In this recipe, we will show how to store information about the last selected tab name. This example is based on the Binding tabs with a hard URL recipe in Chapter 2, Layouts. We will continue on the same implementation. We add two new methods for read and for write cookie. In the original application, if the user entered the URL without the tab name after the hash-tag #, the first tab was selected. In this new version, the last opened tab will be selected again.

Getting ready

Create application described in the Binding tabs with a hard URL recipe in Chapter 2, Layouts.

How to do it...

  1. We will continue on the previous implementation. First, we add two constants. The first is for the name of the cookie...

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