Book Image

Learning Ext JS 3.2

By : Shea Frederick, Colin Ramsay, Steve 'Cutter' Blades, Nigel White
Book Image

Learning Ext JS 3.2

By: Shea Frederick, Colin Ramsay, Steve 'Cutter' Blades, Nigel White

Overview of this book

<p>As more and more of our work is done through a web browser, and more businesses build web rather than desktop applications, users want web applications that look and feel like desktop applications. Ext JS is a JavaScript library that makes it (relatively) easy to create desktop-style user interfaces in a web application, including multiple windows, toolbars, drop-down menus, dialog boxes, and much more. Yet, most web developers fail to use this amazing library to its full power.</p> <p>This book covers all of the major features of the Ext framework using interactive code and clear explanation coupled with loads of screenshots. Learning Ext JS will help you create rich, dynamic, and AJAX-enabled web applications that look good and perform beyond the expectations of your users.</p> <p>From the building blocks of the application layout, to complex dynamic Grids and Forms, this book will guide you through the basics of using Ext JS, giving you the knowledge required to create rich user experiences beyond typical web interfaces. It will provide you with the tools you need to use AJAX, by consuming server-side data directly into the many interfaces of the Ext JS component library. You will also learn how to use all of the Ext JS widgets and components smartly, through interactive examples.By using a series of straightforward examples backed by screenshots, Learning Ext JS 3.2 will help you create web applications that look good and perform beyond the expectations of your users.</p>
Table of Contents (22 chapters)
Learning Ext JS 3.2
Credits
About the Authors
About the Reviewers
Preface

More widget wonders


Let's get back to making our little application as annoying as possible by adding an icon and buttons! This can be done by adding a style for the icon, and modifying the config object to have an icon property, and an fn property which references a button handler function.

First, let's discuss the CSS we need. Add the following code into the head of the document, within a style tag:

milton-icon {
background: url(milton-head-icon.png) no-repeat;
}

Also, we will make some changes to our widgets configuration. The icon property just needs our style name as the value, milton-icon. We have also included a function to be executed when the user clicks on any of the buttons in the dialog. This function is created as an anonymous function, but the property could also reference a function that was defined elsewhere, possibly as part of a class. In this case, the function is merely used to alert the user which button was pressed, so we will keep it as an anonymous function:

Ext.Msg...