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Adding Ajax Publisher: O'Reilly Media, Inc.

Number Of Pages: 399

Publication Date: 2007-06-20

Sales Rank: 186990

ISBN / ASIN: 0596529368

EAN: 9780596529369

Binding: Paperback

Manufacturer: O'Reilly Media, Inc.

Studio: O'Reilly Media, Inc.

Average Rating: 4

Ajax can bring many advantages to an existing web application without forcing you to redo the whole thing. This book explains how you can add Ajax to enhance, rather than replace, the way your application works. For instance, if you have a traditional web application based on submitting a form to update a table, you can enhance it by adding the capability to update the table with changes to the form fields, without actually having to submit the form. That's just one example. Adding Ajax is for those of you more interested in extending existing applications than in creating Rich Internet Applications (RIA). You already know the "business-side" of applications-web forms, server-side driven pages, and static content-and now you want to make your web pages livelier, more fun, and much more interactive. This book: Provides an overview of Ajax technologies, and the importance of developing a strategy for changing your site before you sit down to code

Explains the heart and soul of Ajax: how to work with the XMLHttpRequest object

Introduces and demonstrates several important Ajax libraries, including Prototype, script.aculo.us, rico, Mochikit

Explores the interactive element that is Ajax, including how to work with events and event handlers that work across browsers

Introduces the concept of web page as space, and covers three popular approaches to managing web space

Explains how to make data updates, including adding new data, deleting, and making updates, all from within a single page

Describes the effects Ajax has on the Web-breaking the back button, losing browser history, dynamic effects that disappear when the page is refreshed, and more

Covers advanced CSS effects, including drag and drop "scroll bars", pagination, and the use of SVG and the Canvas object

Explores mashups-Ajax's ability to combine data from different web services in any number of ways, directly in our web pages

You don't need to start over to use Ajax. You can simply add to what you already have. This book explains how.

Review: Useful if you want to enhance an existing application with Ajax It is not necessary to read this book sequentially from start to finish. Most chapters largely stand alone, although there is some small degree of building on previous chapters' content, primarily in the use of an "Adding Ajax" library that is created as the book proceeds. However, all of the material is included in the downloadable examples, so you can skip around without too much confusion. What is probably essential is that you read chapters one and two before reading any other chapters. The book assumes the reader is already a web developer who wants to learn to add Ajax effects to his/her web applications. It is assumed that the reader has experience with HTML, XHTML, XML basics, CSS, and JavaScript. Finally, it is assumed that the reader is familiar with relational databases and has worked with them before. The PHP language is what is used in this book for all of the server-side components of the Ajax applications. The following is a description of the book's contents: Chapter 1. Getting Ready to Make a Move to Ajax - Provides an overview of the Ajax technologies, but also covers the importance of developing a strategy for change to your site before sitting down to code.

Section 1.1. The Technologies That Are Ajax

Section 1.2. Start Clean

Section 1.3. Converting Tables to CSS Layouts

Section 1.4. Continuing the Conversion: Element by Element

Section 1.5. Dealing with Browser-Specific Quirks

Section 1.6. Understanding Your Client Base

Section 1.7. Designing a Framework for Your Site

Section 1.8. Progressive Enhancement Versus Massive Overhaul Chapter 2. The Ajax Bits - Provides a nuts-and-bolts coverage of the heart and soul of Ajax: how to work with the XMLHttpRequest object.

Section 2.1. The Web Application

Section 2.2. Preparing the Object for Use

Section 2.3. Preparing and Sending a Request

Section 2.4. Processing the Ajax Response

Section 2.5. Endpoints, the JavaScript Sandbox, and Widgets

Section 2.6. That Security Stuff

Section 2.7. A First Look at Performance

Section 2.8. One Last Word on Asynchronous Versus Synchronous Chapter 3. Ajax Tools and Terminology - Introduces and demonstrates several of the more important Ajax libraries.

Section 3.1. Prototype

Section 3.2. aculo

Section 3.3. Rico

Section 3.4. Dojo

Section 3.5. Other Libraries Chapter 4. Interactive Effects - Gets into the interactive element that is Ajax, including how to work with events and event handlers that work across browsers, what works if more than one library is used, building tool tips, pulling in help data from external sources, creating an Ajax "fade" to signal changes, live previews, and merging live previews with live updates.

Section 4.1. Ajax-Friendly Event Handling

Section 4.2. Just-In-Time Information

Section 4.3. In-Page Previews

Section 4.4. Color Fades for Success or Failure Chapter 5. Space: The Final Frontier - Explores the concept of web page as space and covers three popular approaches to managing web space - the accordion, the tabbed page, and the overlay. Also shows how to package complete effects for any number of applications.

Section 5.1. Horizontal Spacing: The Accordion

Section 5.2. Tabbed Pages

Section 5.3. Overlays Chapter 6. Dynamic Data - Covers how to make data updates, including adding new data, deleting, and making updates, all from within a single page. It also discusses extending existing web applications and incorporating the use of "fades". Some of the performance and security issues associated with database access through Ajax are also covered, as is the use of "live" updates and effects like drag-and-drop sorting.

Section 6.1. In-Place Editing

Section 6.2. In-Place Editing: Performance, Security, and Accessibility

Section 6.3. Highlighting Changes

Section 6.4. Revisiting In-Page Update Accessibility One More Time

Section 6.5. Live Validation

Section 6.6. Performance and Two-Phase Commits

Section 6.7. External Library Data Effects Chapter 7. History, Navigation, and Place with Single-Page Applications - Explores Ajax effects on the Web including breaking the Back button, losing the browser history, dynamic effects that disappear when the page is refreshed, and being able to link or bookmark an Ajax "page."

Section 7.1. Introducing the Challenger: Paged Content

Section 7.2. Remembering Place

Section 7.3. Old and New Persistence: Side by Side

Section 7.4. The New Page View

Section 7.5. Post-Mortem Chapter 8. Adding Advanced Visual Effects - This chapter is pure fun and covers some advanced CSS effects including drag-and-drop "scrollbars," pagination, the use of SVG, and the Canvas object.

Section 8.1. Advanced CSS Tricks

Section 8.2. Scalable Vector Graphics

Section 8.3. SVG Quick View

Section 8.4. Mixer: SVG and Ajax

Section 8.5. The Future of Graphics

Section 9.1. Mapping with Google

Section 9.2. A Second Service: Flickr

Section 9.3. Adding Technorati to Our Mashup

Section 9.4. Reengineering the Mashup

Section 9.5. The Reengineered Clients

Section 9.6. Summarizing Mashups Chapter 10. Scaling, Infrastructure, and Starting from Scratch - Discusses the privacy of web services, distributing resource needs, and how tightly coupled you want your server and client components to be. The chapter also looks at starting Ajax from scratch by briefly introducing some of the frameworks that are available.

Section 10.1. Frameworks: Tight Versus Loose Coupling

Section 10.2. The Web Service: Resource and Security

Section 10.3. Ajax Libraries: Homegrown or Borrowed

Section 10.4. Designing Ajax from the Ground Up

Section 10.5. Frameworks du Jour

Section 10.6. Go Forth and Ajax

Review: Special Focus May Apply to Your Situation

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