Google Web Toolkit Applications [GWT by Ryan Dewsbury

By Ryan Dewsbury

“Ryan basically is familiar with the GWT worth proposition and the way GWT integrates right into a different net expertise stack–and not only in a theoretical method. With the recognition of gpokr.com and kdice.com, Ryan can communicate with the authority of concrete success.”
–Bruce Johnson, writer of Google internet Toolkit
“This e-book distinguishes itself from different books on GWT in that it walks throughout the complete technique of construction numerous nontrivial GWT purposes, no longer the toy purposes that the majority books present.”
–R. Mark Volkmann, item Computing, Inc.
“Google™ net Toolkit functions is a wonderful source for any GWT developer. options to demanding situations in most cases encountered in GWT are provided during the layout and improvement of exact purposes. The functions constructed in the course of the textual content show top practices from easy UI layout all of the strategy to customized code new release, and are offered with little pretext in regards to the quantity of Java wisdom a given developer could have. complex ideas usually are not withheld yet are offered in a fashion that may be understood through either amateur and professional builders alike. reliable program improvement practices and correct version View Controller layout is bolstered in the course of the ebook, approximately ensuring that the reader will come away a greater programmer. “
–Jason Essington, Senior Web/Java Engineer, eco-friendly River Computing
“Dewsbury’s Google™ net Toolkit functions is a ebook for either specialists and newbie programmers who are looking to observe this open resource Java software program improvement framework, in addition to write Ajax functions. a really specific book!”
–Massimo Nardone, Advisory IT defense Architect
Accelerate and Simplify Ajax improvement with Google net Toolkit
Get the sting you must bring extraordinary consumer reports with Google™ net Toolkit functions, a guidebook that gives net builders with middle info and directions for developing wealthy internet functions. even if you’re a developer who must construct a high-performance entrance finish for Java, personal home page, or Ruby purposes, or to combine with exterior internet companies, this source from specialist Google net Toolkit (GWT) developer Ryan Dewsbury can provide the in-depth assurance you’ll need.
In this necessary booklet, insider Ryan Dewsbury offers directions for utilizing the powerful device set and will get you in your approach to growing top quality net purposes through supplying a complete assessment of GWT know-how. moreover, he stocks his “in-the-trenches” insights on
Building stylish and responsive person interfaces with Cascading type Sheets and GWT’s Widgets and Panels
Creating seamless consumer reviews via asynchronous communique with HTTP, leisure, JSON/JSONP, and RPC Interoperating with net standards–such as XML, RSS, and Atom–and net services–such as Google Maps, Amazon Books, Yahoo! seek, Flickr, and Blogger
Overcoming browser safety regulations, comparable to HTTP’s two-connection restrict and the Same-Origin policy
Accelerating improvement, utilizing software program engineering, code iteration, internationalization, program styles, and Java tools
Deploying for optimum functionality with source compression and caching
Building 5 non-trivial purposes: a machine software with a wealthy drag-and-drop interface, a multi-search software that makes requests to many se's, a weblog editor program for dealing with entries throughout a number of blogs, an online fast messenger, and a database supervisor for a normal internet page
This sensible consultant to GWT introduces you to the expertise; presents recommendations, tips, and examples; and places you at the highway to supplying top-notch person stories on your internet purposes.

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Extra resources for Google Web Toolkit Applications [GWT

Example text

The Label instance simply knows to fill its space. The code snippet, from the Instant Messenger sample application in Chapter 9, adds a Label instance to appear in the application during sign-in, as shown in Figure 2-2. Figure 2–2. The Signing in…label A Label has a default CSS name set to gwt-Label, which lets you easily set the style for all labels in your application. gwt-Label{ background-color:#008; color:#FF0; } This change would cause the Instant Messenger application to display the “Signing in…” label, as shown in Figure 2-3 (minus the color, of course).

GWT widgets by category simple container panels and complex container panels, don’t deal with layout but provide unique container functionality to their single child widget. Figure 2-1 presents the widgets that come with GWT divided into their categories. Static Widgets These simplest types of widgets don’t have any internal state or change dynamically on their own. They can still be part of a dynamic user interface in which the user interface code can change their properties and location at runtime, but they don’t change as a result of user actions.

More importantly, desktop applications have software engineering tools, which have had much more time to mature than Ajax application tools. These software engineering tools mature faster too, since they’re also used for server-side applications, which often are more complex and require even more engineering. 5 6 Chapter 1 First Steps with the Google Web Toolkit In addition to the absence of tools, JavaScript also lacks the language features that dramatically improve the ability to build complex applications, including certain object-oriented programming constructs and the ability to catch errors at compile time.

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