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Brad Fitzpatrick

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Weekend hack: Shared whiteboard in JavaScript [Mar. 14th, 2005|03:50 pm]
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My adventures with XMLHTTPRequest and a never-ending HTTP response:

Draw and chat with your friends: (or play pictionary!)

http://www.danga.com/misc/jsdraw/xmlhttp.html

Just a prototype. Requires FireFox at present. IE is lacking a number of useful features.

Soon to be added:
-- named spaces, so people can make their own space w/ friends, and not fight tons of people on the net for drawing
-- colors / color picker
-- brushes
-- infinite board
-- see nicks, not IPs, in chat
-- server-side saving of old wiped images (so clients can see last 20 images)

Enjoy.
LinkReply

Comments:
[User Picture]From: [info]eli
2005-03-14 11:52 pm (UTC)

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So like....MS NetMeeting?

Heh...just fucking with ya. I haven't checked it out yet, I'm sure it's cooler.
From: [info]sherm
2005-03-15 12:18 am (UTC)

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Heh. I had the same thought. Brad, upon finally selling all his businesses, finds himself back in 1996. :P
[User Picture]From: [info]boggyb
2005-03-14 11:56 pm (UTC)

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I've finally found a reason for me to get Firefox.

(Win2k + IE6, only spyware I've ever been hit by are cookies)
[User Picture]From: [info]bitwise
2005-03-14 11:59 pm (UTC)

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Amazing how bleeding edge cool tech can make highly educated professionals look like five year olds fingerpainting and cutting each other's hair.
[User Picture]From: [info]taral
2005-03-15 12:02 am (UTC)

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Awesome. Neverending responses mess up proxies though.
[User Picture]From: [info]dakus
2005-03-15 12:03 am (UTC)

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slicker than owlshit!
[User Picture]From: [info]curbside_yogini
2005-03-15 12:14 am (UTC)

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lol new entertainment for the evening!
From: [info]pinterface
2005-03-15 12:23 am (UTC)

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Congratulations on creating the first web page to make my copy of Firefox suck up over 300MB of RAM more than it already was! (Granted, I've only had it for a week.) Probably could have gotten higher, but I ran out of pagefile. ;P

[User Picture]From: [info]iamo
2005-03-15 12:31 am (UTC)

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Heh yeah, this is cool, but it'd be cooler if it didn't absolutely destroy my machine.
[User Picture]From: [info]chris
2005-03-15 12:42 am (UTC)

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huh i was wondering what happened to firefox.
From: [info]sheehan
2005-03-15 12:40 am (UTC)

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mine claimed 830 megs... i'll stick to MS paint :)

--scott
[User Picture]From: [info]avatraxiom
2005-03-15 02:37 am (UTC)

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Very streange. My Firefox is fine. I'm on 1.0.1 on Linux, though. Maybe it's something in the Win32 GFX, or something that was a problem some time before 1.0.1.

I do recall a problem with animated GIFs in much older versions -- it could be something similar.

-Max
[User Picture]From: [info]jojobear99
2005-03-15 03:13 am (UTC)

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least it even loads in firefox... ;-)
[User Picture]From: [info]denshi
2005-03-15 12:48 am (UTC)

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Sweet hack!
[User Picture]From: [info]eru
2005-03-15 01:11 am (UTC)

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the social dynamic that's forming is amazing. also, my robot drawing kicked ass.
[User Picture]From: [info]youngoat
2005-03-15 02:00 am (UTC)

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I agree with both of these statements.
[User Picture]From: [info]loganb
2005-03-15 01:20 am (UTC)

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It is far more useful to show IP. Why, I just ran into someone from my school 'cause they're on IP block is 137.112...
[User Picture]From: [info]yiyi
2005-03-15 02:06 am (UTC)

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[User Picture]From: [info]jes5199
2005-03-15 03:19 am (UTC)

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i was playing with this sort of thing
and generally i found that i had more luck getting the damn thing to work at all by using lots of tiny complete requests, rather than holding a connection open.
(holding a connection open had a habit of crashing firefox, crashing apache, crashing php, etc etc)
[User Picture]From: [info]noogz
2005-03-15 03:32 am (UTC)

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that's super cool!! I'm glad i have firefox...

although you might want to make the thingy saying how many people are drawing a little bit bigger. I clicked in, and saw this cool penguin picture, and doodled, not realizing someone else was doodling. OOPS!!

sorry!! :(
[User Picture]From: [info]jarodrussell
2005-03-15 05:38 am (UTC)

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So cool!
[User Picture]From: [info]czircon
2005-03-15 09:54 pm (UTC)

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Dude, you should totally incorporate this into LJ somehow. Like, give everybody their own whiteboard with custom friends group access. And stuff. (Paid users only, of course!)
[User Picture]From: [info]firelegend
2005-03-24 03:42 pm (UTC)

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Doesn't seem to work in firefox for me :(
[User Picture]From: [info]repalviglator
2005-10-23 06:02 am (UTC)

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Did you ever get anywhere with this? The link isn't working for me. I was interested in having a free web-based whiteboard. I think that would be pretty sweet.
[User Picture]From: [info]brad
2005-10-23 02:24 pm (UTC)

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Reload this journal entry.... I updated the URL to remove the port number.