Pulling .live() functionality out of jQuery

Posted by Daniel on Stack Overflow See other posts from Stack Overflow or by Daniel
Published on 2011-01-16T04:45:19Z Indexed on 2011/01/16 4:53 UTC
Read the original article Hit count: 145

Filed under:

jQuery

|

javascript-events

|

firefox-addon

|

xul

I am writing a Firefox Add-On that currently is depending on jQuery for the following things:

Selectors
Animations
A special .live("focus") hail-mary event-catching maneuver that happens to work with jQuery 1.4.2 (but not 1.4.4)

jQuery isn't well suited for functioning inside XUL, and it's a miracle we've gotten this far with it. We're trying to remove the jQuery requirements, the first two are easy (animations are simple, and we can use .querySelector() instead of jQuery), but the .live has proven impossible to do on our own. I've tried reading the source code, but I haven't been able to piece it apart.

What is the jQuery .live function doing? There's clearly a lot more going on than document.addEventListener("focus"/"focusin",function_to_pick_apart_events). What else is going on here?

© Stack Overflow or respective owner

Related posts about jQuery

Microsoft and jQuery

as seen on West-Wind - Search for 'West-Wind'
The jQuery JavaScript library has been steadily getting more popular and with recent developments from Microsoft, jQuery is also getting ever more exposure on the ASP.NET platform including now directly from Microsoft. jQuery is a light weight, open source DOM manipulation library for JavaScript that… >>> More
An Introduction to jQuery Templates

as seen on Stephen Walter - Search for 'Stephen Walter'
The goal of this blog entry is to provide you with enough information to start working with jQuery Templates. jQuery Templates enable you to display and manipulate data in the browser. For example, you can use jQuery Templates to format and display a set of database records that you have retrieved… >>> More
Ajax Control Toolkit December 2013 Release

as seen on Stephen Walter - Search for 'Stephen Walter'
Today, we released a new version of the Ajax Control Toolkit that contains several important bug fixes and new features. The new release contains a new Tabs control that has been entirely rewritten in jQuery. You can download the December 2013 release of the Ajax Control Toolkit at http://Ajax.CodePlex… >>> More
jQuery show "loading" during slow operation

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to show a small loading image during a slow operation with jQuery and can't get it right. It's a BIG table with thousands of rows. When I check the "mostrarArticulosDeReferencia" checkbox it removes the "hidden" class from these rows. This operation takes a couple of seconds and I want… >>> More
Tracking download of non-html (like pdf) downloads with jQuery and Google Analytics

as seen on Developer IT - Search for 'Developer IT'
Hi folks, it’s been quite calm at Developer IT’s this summer since we were all involved in other projects, but we are slowly comming back. In this post, we will present a simple way of tracking files download with Google Analytics with the help of jQuery. We work for a client that offers… >>> More

Related posts about javascript-events

flash blocking javascript events

as seen on Stack Overflow - Search for 'Stack Overflow'
this is an edit of the original post now that I better understand the problem. now with source code! In IE, if body (or another html div has focus), then you keypress & click on flash at the same time, then release... a keyup event is never fired. It is not fired in javascript or in flash.… >>> More
computationally expensive flash blocking javascript events

as seen on Stack Overflow - Search for 'Stack Overflow'
When I have a computationally expensive flash animation running in my page, sometimes javascript keyUp listeners on a textfield are not being fired. Keydown events are not lost. This only happens in IE8 (and IE7 in compatibility mode). I need those keyup listeners! How can I solve / workaround… >>> More
Set JavaScript events in WebBrowser control

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi I have a WebBrowser control and try to set onclick and href attributes on all links. foreach (HtmlElement link in webBrowser1.Document.Links) { link.SetAttribute("href", "http://www.google.com"); link.SetAttribute("onclick", "return false;"); } It works well. When i out source code… >>> More
Help regarding JavaScript events

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a table full of cells and i would like to get on which cell the mouse is. For this i have attached events to all the cells and then i am finding the elements. But i guess there could be a better options. right ? Is it possible that i attach only single event handler on top and still be able… >>> More
Help me understand JavaScript events

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a table full of cells and i would like to get on which cell the mouse is. For this i have attached events to all the cells and then i am finding the elements. But i guess there could be a better options. right ? Is it possible that i attach only single event handler on top and still be able… >>> More