Book Image

jQuery UI Cookbook

By : Adam Boduch
Book Image

jQuery UI Cookbook

By: Adam Boduch

Overview of this book

jQuery UI is the quintessential framework for creating professional user interfaces. While jQuery core lays the foundation for interaction with the DOM and handling events, jQuery UI fills in the user interaction gap. This book will give you a huge productivity boost out of the box with jQuery UI, and help you understand the framework, inside and out."jQuery UI Cookbook" provides you with practical recipes featuring in-depth coverage of every widget in the framework, including how to address limitations that impact your everyday development activities with these widgets. You'll get a better idea of the big picture – how the framework is composed, how the widgets relate to one another, and how to build on those patterns.Be it a minor tweak on the visual design of a progress bar or a fundamental change in a widget to meet your needs, "jQuery UI Cookbook" covers scenarios both big and small. You can show reminders as tooltips, apply a variety of effects to the menu widget, and start interactions between the dialog widget and API data using deferred objects. These and many more interesting tasks are covered in this book, which can be done with smooth learning and great understanding. You will see how button widgets can fill the width of their containing element, making the layout more consistent. Tabs can be sorted and moved between widgets. You will learn how to do all these things within the context of the big picture, by finding out why the components work the way they do, making you well-versed in jQuery UI.
Table of Contents (19 chapters)
jQuery UI Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Marking step increments


The slider widget can be passed a step value, which determines the increments by which the user can slide the handle. If unspecified, the step option is 1, and the handle slides smoothly back and forth. On the other hand, if the step value were more pronounced, let's say 10, we would notice the handle snapping into position as we move it. Let's take a look at how we might extend the slider widget to give the user a better feel for where these increments lie. We'll mark the increments visually using ticks.

How to do it...

We'll jump right into the custom CSS used for this widget enhancement. The underlying div element used for the slider element can be as simple as <div></div>.

.ui-slider-tick {
    position: absolute;
    width: 2px;
    height: 15px;
    z-index: -1;
}

And here is our JavaScript code that extends the slider and creates an instance of the widget using the new ticks option:

(function( $, undefined ) {

$.widget( "ab.slider", $.ui.slider, {
...