Re: [Jscheme-user] GrewpEdit in JScheme

[Geoffrey K. <ge...@kn...>]

Windows XP Pro:
-Java Web Start:
-- Create Shortcut.  Unable to create a shortcut for GroupEdit: v1.1  
7/2/04.  Invalid filename.  Please make sure the application title is  
valid.
-- Seemed to work fine.
-Signed applet:
--WinXP Pro, IE6, via signed applet, double-clicked on visit-log, also  
single-clicked on visit-log & pressed JOIN, both times got this:

ERROR in Action in reponse to an AWT  
eventjava.awt.event.ActionEvent[ACTION_PERFORMED,cmd=Join] on  
javax.swing.JButton[,0,0,59x28,layout=javax.swing.OverlayLayout,alignmen 
tX=0.0,alignmentY=0.5,border=javax.swing.plaf.BorderUIResource$CompoundB 
orderUIResource@6c15a4,flags=1200,maximumSize=,minimumSize=,preferredSiz 
e=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax.swing.p 
laf.InsetsUIResource[top=2,left=14,bottom=2,right=14],paintBorder=true,p 
aintFocus=true,pressedIcon=,rolloverEnabled=false,rolloverIcon=,rollover 
SelectedIcon=,selectedIcon=,text=Join,defaultCapable=true] is  
(undefined tag  ())

Mac OS X:
-Java Web Start: Clicking on this link in Safari triggered a download  
of grewp.servlet, after which nothing happened.  I seem to recall that  
JWS apps on my Mac had .jlnp extensions.  Am I remembering correctly?
-Signed Applet:
--Worked great EXCEPT (!!!) I was in a tab of Safari, and clicking Edit  
in the signed applet CLOSED MY SAFARI WINDOW (and thus, all the other  
web pages I happened to be visiting).  It EXITED SAFARI too.  I'll have  
to try again with the signed applet in its own window. [...]  I tried  
it again, it closes all of SAFARI.

GNU/Linux (Fedora Core 1, FireFox 0.8 browser):
- Java Web Start: Works great.
- Signed applet.  Everything I wrote about Mac OS X + signed applet  
applies, except the browser is FireFox instead of Safari.  The behavior  
of the whole browser closing when I select File/Exit from the applet is  
the same.

I'll have to try Solaris later.  The kids want to go canoeing!

Geoffrey
--
Geoffrey S. Knauth | http://knauth.org/gsk

On Jul 3, 2004, at 08:24, Timothy John Hickey wrote:

> We are about to make a release of a Collaborative Editor
> (GrewpEdit) implemented in JScheme and would appreciate
> any feedback from the groupscheme and JScheme community about this  
> tool.
>
>      http://tat.cs.brandeis.edu:8090/grewp
>
> We are releasing it as a Java Web Start (JWS) application, a signed  
> Java applet,
> a double-clickable jar, and a source distribution.
>
> I am especially interested in seeing
>
>   1)  whether the JWS and applet versions run on various Microsoft  
> operating
>        systems (we've tried one version of NT and it worked OK under  
> Netscape and IE)
>
>   2) whether there is a noticeable (or annoying!) lag time for people
>        using the editor far from Boston. (There is no noticeable lag  
> when I
>        use it from home. I'm about 10 routers and 10 miles away on a
>        wireless link to a DSL connection).
>
> The current version allows you to connect to a server in Boston just by
> supplying a username (any will do!). You can also create your own
> Grewp server and have people connect to it.
>
> The client editors send scheme terms over a socket to a server which
> resolves conflicts and sends back official transformed editing  
> operations.
> The clients then apply these operations to their textfield. Thus, this  
> is a
> full duplex model where a slow connection will cause a noticeable lag.
> Each character you type goes to the server, gets transformed and sent
> back to your machine before it appears on the screen.
>
> We are working on building a Jupiter/NetEdit model that uses  
> speculation
> to remove the lag time, but its not up yet. We are also working on a  
> mini-emacs
> interface for the collaborative textarea (which would allow users to  
> define their
> own emacs bindings in Jscheme ...) The next version of GrewpEdit will  
> allow
> the user to select from a wide variety of widgets including  
> whiteboards,
> cobrowsers, and other groupware widgets...
>
> Cheers,
> ---Tim---
>
>
>
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