Book Image

jQuery UI 1.10: The User Interface Library for jQuery - Fourth Edition

Book Image

jQuery UI 1.10: The User Interface Library for jQuery - Fourth Edition

Overview of this book

jQuery UI, the official UI widget library for jQuery, gives you a solid platform on which to build rich and engaging interfaces quickly, with maximum compatibility, stability, and effort. jQuery UI's ready-made widgets help to reduce the amount of code that you need to write to take a project from conception to completion. jQuery UI 1.10: The User Interface Library for jQuery has been specially revised for Version 1.10 of jQuery UI. It is written to maximize your experience with the library by breaking down each component and walking you through examples that progressively build up your knowledge, taking you from beginner to advanced user in a series of easy-to-follow steps. Throughout the book, you'll learn how to create a basic implementation of each component, then customize and configure the components to tailor them to your application. Each chapter will also show you the custom events fired by the components covered and how these events can be intercepted and acted upon to bring out the best of the library. We will then go on to cover the use of visually engaging, highly configurable user interface widgets. At the end of this book, we'll look at the functioning of all of the UI effects available in the jQuery UI library.
Table of Contents (22 chapters)
jQuery UI 1.10: The User Interface Library for jQuery
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Binding to events


Using the event callbacks exposed by each component is the standard way of handling interactions. However, in addition to the callbacks listed in the previous table, we can also hook into another set of events fired by each component at different times.

We can use the standard jQuery on() method to bind an event handler to a custom event, fired by the menu widget in the same way that we could bind to a standard DOM event, such as a click.

The following table lists the menu's custom binding events and their triggers:

Event

Fired when…

Menucreate

The menu is created

Menuselect

A menu item is selected

Menufocus

A menu gains focus or when any menu item is activated

Menublur

The menu loses focus

The first event menucreate is fired, as soon as the menu object is initialized; the next three will be fired depending on whether a menu item has been selected by the user.

Let's see this type of event usage in action; change the final <script> element in menu8.html...