Comments on: Emulating onhashchange without setInterval

By: SalmanMitha

SalmanMitha — Mon, 24 Jan 2011 03:55:42 +0000

Timer is least problematic, n most easy..
y nt use this!!
if ((‘onhashchange’ in window) || (‘onhashchange’ in document))
window.onhashchange = doSomething;
else
window.setInterval(“doSomething()”,200);

By: zachleat

zachleat — Mon, 25 Aug 2008 01:07:04 +0000

Hey quixote and Dean,
It doesn’t even need text in the a tags inside of the i-frame. You can get the current hash from the name attribute of the currently scrolled i-frame.

I’ve updated the script on my page, if you want to check it out.

Thanks,
Zach

By: quixote218

quixote218 — Sun, 24 Aug 2008 17:42:36 +0000

You could fix the text-resize issue with some CSS, I think.

a {
display:block;
height:50px;
overflow:hidden;
}

Since the target element is a fixed size (the size should be greater than the height of the iframe, I assume), scrolling will always happen and text size won’t matter.

By: zachleat

zachleat — Fri, 22 Aug 2008 20:13:57 +0000

@Dean, I’ll work on it later tonight when I’m not on company time. I’ll update the post on my page when I’ve got it working. It’s good to stay hydrated, just try not to get soaked.

By: deanedwards

deanedwards — Fri, 22 Aug 2008 17:10:54 +0000

@Zach, sorry to be a wet blanket. If you can get it working with resized text then I might reconsider. :-)

By: zachleat

zachleat — Fri, 22 Aug 2008 14:45:55 +0000

Also, you’d have to resize your text to gargantuan proportions to actually break this approach. But I’ll update the page with a fix.

By: zachleat

zachleat — Fri, 22 Aug 2008 14:34:45 +0000

Hey Dean,
I have a lot of respect for the work that you’ve done, but I think that concentrating on that one point of failure misses the beauty of the approach.

This is a cross browser bookmarking script that relies on almost nothing but standard browser behavior: that linking to a #name will jump to that name on the page and create a new history entry.

Removing the text inside of the div’s created inside of the iframe would fix your problem, no?

Regards, Zach

By: dbloom

dbloom — Fri, 22 Aug 2008 14:15:46 +0000

I wrote a history script a few years ago that does something similar, with bookmarking:
http://bloomd.home.mchsi.com/newhist/demo

One fun advantage over other history scripts it has is that it can tell the index in the history, as well as the hash value. So you can have two pages in the same session with the same hash value, and be able to distinguish the two (for purposes such as cacheing scroll position, etc).

It’s really, really hacky though. It actually loads the page’s content in a position:fixed iframe. And it doesn’t work in Opera :-(.

By: deanedwards

deanedwards — Fri, 22 Aug 2008 13:39:16 +0000

It immediately breaks when you resize text. I’ll stick with a timer thanks.

By: V1

V1 — Fri, 22 Aug 2008 12:57:33 +0000

hot, what else can i say