NYCPHP Meetup

[Peter Sawczynec]

It is interesting to note here that iframes have a history. If I recall
correctly: 

Originally, iframes were an IE only gambit and served to sidestep the
more routinely employed numbingly complex of framesets, divs, layers and
ilayers. 

Then iframes were a security issue.

Today iframes are a very handy vehicle allowing fast integration of
disparate content items/sources. 

Like Jeff Goldblum as Dr. Ian Malcolm says -- I think maybe in Jurassic
Park X, and correct me if I am wrong, but he says: "Nature will find a
way. Nature always finds a way."

Peter


-----Original Message-----
From: talk-bounces at lists.nyphp.org [mailto:talk-bounces at lists.nyphp.org]
On Behalf Of csnyder
Sent: Wednesday, February 28, 2007 3:11 PM
To: NYPHP Talk
Subject: Re: [nycphp-talk] Thoughts on using JavaScript with no
progressivefall-back


On 2/26/07, Chris Shiflett <shiflett at php.net> wrote:

> What's the best-of-breed solution for changing a regular form
submission
> button to initiate an Ajax call instead of submitting the form? I've
got
> a hacky solution that involves rewriting the button, adding an
> onsubmit() action, and trying to keep it from submitting the form in
IE,
> but it feels like there must be a more elegant solution.
>

That's why I used the word "mojo" -- it's not the name of a new
framework, it's a description of the approach. Or as you say, hacky.

I leave form buttons intact, and just change the form's target
attribute to submit to a hidden iframe. I prefer that method since it
allows file upload, whereas XMLHttpRequest form submission does not.

Getting the response out of the iframe is also hacky, but iframes
generate an onload event. The code to actually get the content out is
platform dependent:

function iframeonload() {
  var ifdoc = $("hiddenIFrame").contentDocument ||
document.frames("hiddenIFrame").document;
  // etc...
}

What you _don't_ get with iframes is any sort of intelligent HTTP
error handling.

-- 
Chris Snyder
http://chxo.com/
_______________________________________________
New York PHP Community Talk Mailing List
http://lists.nyphp.org/mailman/listinfo/talk

NYPHPCon 2006 Presentations Online
http://www.nyphpcon.com

Show Your Participation in New York PHP
http://www.nyphp.org/show_participation.php