Book Image

MooTools 1.3 Cookbook

By : Jay L Johnston
Book Image

MooTools 1.3 Cookbook

By: Jay L Johnston

Overview of this book

MooTools is a JavaScript framework that abstracts the JavaScript language. JavaScript itself, complex in syntax, provides the tools to write a layer of content interaction for each different browser. MooTools abstracts those individual, browser-specific layers to allow cross-browser scripting in an easy-to-read and easy-to-remember syntax. Animation and interaction, once the domain of Flash, are being taken by storm by the MooTools JavaScript framework, which can cause size, shape, color, and opacity to transition smoothly. Discover how to use AJAX to bring data to today's web page users who demand interactivity without clunky page refreshes. When searching for animation and interactivity solutions that work, MooTools 1.3 Cookbook has individual, reusable code examples that get you running fast! MooTools 1.3 Cookbook readies programmers to animate, perform AJAX, and attach event listeners in a simple format where each section provides a clear and cross-browser compatible sketch of how to solve a problem, whether reading from beginning to finish or browsing directly to a particular recipe solution. MooTools 1.3 Cookbook provides instant solutions to MooTools problems – whatever you want to do with MooTools, this book will tell you how to do it. MooTools 1.3 Cookbook is presented in a progressive order that builds concepts and ideas, while simultaneously being a collection of powerful individual, standalone, recipe solutions.
Table of Contents (17 chapters)
MooTools 1.3 Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Updating a scrolling ticker periodically


Review the previous recipe; all we will be adding here is a periodic refresh that updates the data.

How to do it...

Creating a periodical object has a simple syntax that takes a mandatory first argument of how many milliseconds after which to repeat the function call.

// periodically (every 10 seconds) refresh the stock ticker
var refresh_ticker = function() { myJax.send(); };
var my_ticker_refresh = refresh_ticker.periodical(10*1000);
// delay (once after 30 seconds) stop the ticker refresh!
var stop_ticker_refresh = function(){ clearInterval(my_ticker_refresh); };
stop_ticker_refresh.delay(30*1000);

Stopping the function call requires us to have saved the result of the periodical instantiation. In our recipe, we have saved that into the global variable my_ticker_refresh.

Note

Stopping the automatic refresh after some time may or may not be suitable for our application; however, in this example, the free feed seems to dislike us connecting to it frequently...