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Google Web Toolkit Applications

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Description

  • Copyright 2008
  • Edition: 1st
  • eBook (Watermarked)
  • ISBN-10: 0-13-265111-4
  • ISBN-13: 978-0-13-265111-0

“Ryan clearly understands the GWT value proposition and how GWT integrates into a diverse web technology stack—and not just in a theoretical way. With the popularity of gpokr.com and kdice.com, Ryan can speak with the authority of concrete success.”

Bruce Johnson, creator of Google Web Toolkit


“This book distinguishes itself from other books on GWT in that it walks through the entire process of building several nontrivial GWT applications, not the toy applications that most books present.”

R. Mark Volkmann, Object Computing, Inc.


Google™ Web Toolkit Applications is an excellent resource for any GWT developer. Solutions to challenges commonly encountered in GWT are presented through the design and development of actual applications. The applications developed throughout the text demonstrate best practices from simple UI design all the way to custom code generation, and are presented with little pretext about the amount of Java knowledge a given developer may have. Advanced concepts are not withheld but are presented in a way that will be understood by both novice and seasoned developers alike. Good application development practices and proper Model View Controller design is reinforced throughout the book, nearly guaranteeing that the reader will come away a better programmer. “

Jason Essington, Senior Web/Java Engineer, Green River Computing


“Dewsbury’s Google™ Web Toolkit Applications is a book for both experts and beginner programmers who want to discover this open source Java software development framework, as well as write Ajax applications. A very detailed book!”

Massimo Nardone, Advisory IT Security Architect

Accelerate and Simplify Ajax Development with Google Web Toolkit


Get the edge you need to deliver exceptional user experiences with Google™ Web Toolkit Applications, a guidebook that provides web developers with core information and instructions for creating rich web applications. Whether you’re a developer who needs to build a high-performance front end for Java, PHP, or Ruby applications, or to integrate with external web services, this resource from expert Google Web Toolkit (GWT) developer Ryan Dewsbury delivers the in-depth coverage you’ll need.


In this valuable book, insider Ryan Dewsbury provides instructions for using the robust tool set and gets you on your way to creating first-class web applications by providing a comprehensive overview of GWT technology. In addition, he shares his “in-the-trenches” insights on


  • Building elegant and responsive user interfaces with Cascading Style Sheets and GWT’s Widgets and Panels

  • Creating seamless user experiences through asynchronous communication with HTTP, REST, JSON/JSONP, and RPC Interoperating with web standards—such as XML, RSS, and Atom—and web services—such as Google Maps, Amazon Books, Yahoo! Search, Flickr, and Blogger

  • Overcoming browser security restrictions, such as HTTP’s two-connection limit and the Same-Origin policy

  • Accelerating development, using software engineering, code generation, internationalization, application patterns, and Java tools

  • Deploying for optimal performance with resource compression and caching

  • Building five non-trivial applications: a gadget application with a rich drag-and-drop interface, a multi-search application that makes requests to many search engines, a blog editor application for managing entries across multiple blogs, a web-based instant messenger, and a database manager for a traditional web page

This practical guide to GWT introduces you to the technology; provides techniques, tips, and examples; and puts you on the road to delivering top-notch user experiences for your web applications.

Sample Content

Table of Contents

Preface xvii

About the Author xxiii


Part I: Understanding the Google Web Toolkit 1


Chapter 1: First Steps with the Google Web Toolkit 3

The Emergence of Ajax 3

Rethinking Web Applications 5

Software Engineering for Ajax 8

Evaluating Your Background 11

The Importance of Application Development Skills 14

A Quick Tutorial 16

Overview of Toolkit Packages 30

Overview of GWT Applications 34

Summary 36


Chapter 2: User Interface Library Overview 37

Static Widgets 38

Form Widgets 47

Complex Widgets 63

Simple Layout Panels 70

Complex Layout Panels 80

Simple Container Panels 84

Complex Container Panels 87

User Interface Framework Glue 95

Summary 103


Chapter 3: Server Integration Techniques 105

Basic Server Integration Techniques 105

Using Data Format Libraries 117

Third-Party Server Integration 125

Advanced Server Integration Techniques 128

Summary 137


Chapter 4: Software Engineering for Ajax 139

Setting Up the Development Environment 139

Adding Projects to Eclipse 145

Writing Java Code in Eclipse 149

Debugging in Eclipse 158

Organizing Your Application Structure 164

Testing Applications 168

Building and Sharing Modules 180

Deploying Applications 183

Summary 190


Chapter 5: Using the Toolkit Effectively 191

Using Asynchronous Programming 191

Handling the Back Button 197

Creating Elegant Interfaces with CSS 200

Extending the Toolkit 212

Internationalizing Applications 226

Generating Code 235

Improving Performance 242

Summary 251


Part II: Rich Web Applications by Example 253


Chapter 6: Gadget Desktop Application 255

Using the Container Application Pattern 256

Designing the Model 257

Building a Columned Container Interface 264

Putting Gadgets in the View 274

Creating Drag-and-Drop Gadgets 283

Cleaning Up User Interfaces with CSS 290

Adding Persistency 300

Using Other JavaScript Libraries 309

Summary 318


Chapter 7: Multi-Search Application 319

Using the Aggregator Application Pattern 319

Multi-Search Design 321

The Model 322

The View 324

The Controller 331

Importing Structured Data Formats 334

Integrating with Yahoo! Search 340

Integrating with Google Base 344

Integrating with Flickr Search 348

Integrating with Amazon Search 354

Summary 358


Chapter 8: Blog Editor Application 361

Using the Workspace Application Pattern 361

Building a Web Service Client 363

Blog Editor Design 365

The Model 365

Building a Multiple Document View 367

Adding Rich Text Editing 381

The LoadingPanel Widget 386

The TitleCommandBar Widget 388

Designing the Application Controller 390

Building an HTTP Proxy Servlet 392

Integrating with the Blogger API 401

Summary 421


Chapter 9: Instant Messenger Application 423

Using the Collaborator Application Pattern 423

Instant Messenger Design 425

The Model 426

Building a Complementary Interface 429

The Controller Overview 447

Using GWT-RPC 450

Connecting to the Server 456

Adding RPC Events 458

The Instant Messenger Server 465

Using Server-Side Advanced IO 470

Summary 478


Chapter 10: Database Editor Application 479

Using the Manager Application Pattern 480

Designing the Model 482

Using Asynchronous Data Access Objects 485

Building a Two-Paned Editor Interface 488

Server Integration Overview 507

Writing a Generic GWT Code Generator 510

Integrating with Action-Based PHP Scripts 522

Integrating with a RESTful Ruby on Rails Application 530

Integrating with a GWT-RPC Servlet 542

Summary 554


Index 555

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