资源说明：此书为实战第二版英文版 下面为此书介绍 xix about this book The purpose of this book is to inform and educate you about the flexible and power- ful desktop framework, Ext JS. This book is designed to walk you through the basics of using this framework all the way through to developing and deploying production applications with Sencha Cmd. After you’ve read this book, you should be able to develop robust desktop web applications. This revised edition covers the many new features of Ext JS 4.0. Who should read this book This book is intended for developers who want to use Ext JS to create rich desktop web applications that feel native. Although Ext JS is themed and highly customized, this book is targeted to those who primarily perform the programming aspect of specifica- tion implementation. We assume that you already have a working understanding of how websites interact with web servers. To be most effective in writing robust and responsive applications, you need a solid background with core technologies like HTML, CSS, JavaScript, and JSON. The only time we talk in detail about these core technologies is in chapter 13, where we discuss prototypal inheritance with JavaScript, a prerequisite to the Ext JS class system. What you’ll need In the book, we’ll walk you through many hands-on examples. In order to get the most out of them, the following items should be set up on your computer:ABOUT THIS BOOK xx ■ A web server—We recommend Apache HTTPD or Microsoft IIS. ■ An intelligent IDE—We recommend Webstorm or Aptana. ■ A copy of Sencha Cmd installed—It’s available at www.sencha.com/products/sencha- cmd/download. That’s pretty much it! Roadmap This book is designed to give you a guided tour of Ext JS, updated for version 4.0. Along the way, we’ll focus on many of the rich features that Ext JS provides, including UI widgets and supportive classes such as data stores, models, and proxies. This tour consists of 14 chapters. Chapter 1 is an introductory chapter, focused on getting you familiar with the framework. We’ll take a top-down view of the framework and discuss many of the com- monly used widgets. Chapter 2 is designed to get your feet wet with the framework. We’ll take a good look at how the framework is delivered to you and identify its contents. We’ll also walk through the basics of DOM manipulation and work our way up to using the Ext JS tem- plate engines, Template and XTemplate, to render data in the DOM. Chapter 3 is about Component and Container, both base classes for the Ext JS UI. We’ll discuss the component lifecycle and look at how to use Container and its utility methods to manage and query for child components. Chapter 4 builds on chapter 3. We’ll discuss core UI components such as panels, windows, message boxes, and tab panels. These are all fundamental widgets that extend Container and allow you to present your UIs with more functionality than Container provides. Chapter 5 covers the various layout managers that Ext JS provides, which are used to organize components on screen. After reading this chapter, you’ll be able to con- struct complex user interfaces with the many Ext JS widgets. Chapter 6 revolves around the form panel and the various input fields. We’ll look at how to set up validations with input fields, and you’ll learn how to load and save data with form panels. Chapter 7 focuses on the Ext JS data package. You’ll learn about the core data classes—Model, Proxy, Reader, and Store—all of which are used to supply data to vari- ous UI components. Chapter 8 builds on chapter 7, and you’ll learn about the grid panel. We’ll explore the various classes that support the grid panel, and you’ll learn to use many common implementation patterns. Chapter 9 is the root source for learning about Ext JS tree panels. We’ll dive into how to use the data TreeStore class to support hierarchical data to the tree panel widget and end the chapter with tree data manipulation via implementation of an Ext JS menu.ABOUT THIS BOOK xxi Chapter 10 covers the Ext JS Draw and Charting package. You’ll draw simple shapes as we explore how to draw on a canvas using the Ext JS Draw API. Afterward, you’ll learn how to implement the many charts that Ext JS provides. Chapter 11 focuses on direct web remoting with Ext JS. We’ll explore what it takes to integrate server-side logic with the client to allow the server code to dictate API calls to the client. Chapter 12 covers drag-and-drop with Ext JS. We’ll look at how to implement the basic drag-and-drop classes and then dive into using drag-and-drop with grids, trees, and data views. Chapter 13 focuses on the Ext JS class system. We begin by covering basic JavaScript prototypal inheritance and elevate your knowledge up to developing Ext JS classes. You’ll learn how to extend Ext JS components and develop plug-ins to the framework. Chapter 14 will take you through what it’s like to develop an application using Sencha Cmd and the Ext JS MVC system. You’ll learn how to set up the basic appli- cation scaffolding, develop an app using MVC, and then produce testing and pro- duction builds. Code conventions All source code in this book is in a fixed-width font like this, which sets it off from the surrounding text. In many listings, the code is annotated to point out the key con- cepts. We have tried to format the code so that it fits within the available page space in the book by adding line breaks and using indentation carefully. Sometimes, however, very long lines include line-continuation markers. Getting the latest examples The examples in this book are designed to be easy to navigate. Each chapter is its own folder, with each example named according to the listing it corresponds to. We’ll work to keep the examples up to date as the framework is upgraded. To get the latest version of the examples, you can fork the following GitHub repo: https://github.com/ModusCreateOrg/extjs-in-action-examples. You can also download a zip file with the code examples from the publisher’s website at www.manning.com/ ExtJSinActionSecondEdition. Author Online Purchase of Ext JS in Action, Second Edition includes free access to a private web forum run by Manning Publications where you can make comments about the book, ask technical questions, and receive help from the authors and from other users. To access the forum and subscribe to it, point your browser to www.manning.com/ ExtJSinActionSecondEdition. This page provides information on how to get on the forum once you’re registered, what kind of help is available, and the rules of con- duct on the forum.ABOUT THIS BOOK xxii Manning’s commitment to our readers is to provide a venue where a meaningful dialog between individual readers and between readers and the authors can take place. It’s not a commitment to any specific amount of participation on the part of the authors, whose contribution to the AO remains voluntary (and unpaid). We suggest you ask the authors challenging questions lest their interest stray! About the authors Jay Garcia is CTO and cofounder of Modus Create, a company focused on deliver- ing high-end solutions with Sencha products. Jay’s involvement with the world of Sencha started in 2006. Since then, Jay has been focused on knowledge sharing through books, blog articles, screencasts, meetups, and conferences. His blog is at http://moduscreate.com/. Grgur Grisogono is a principal at Modus Create and a web technology evangelist. Grgur has been involved with Ext JS since 2007 and has successfully organized three Sencha-focused conferences in Europe. Jacob Andresen resides in Germany and is an Ext JS enthusiast. He works on various projects and contributes to the community via blog posts and the Sencha forums.

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