Fwd: [Jscheme-user] GrewpEdit in JScheme

[Timothy J. H. <tim...@ma...>]

Begin forwarded message:

> From: Timothy John Hickey <tim...@ma...>
> Date: July 3, 2004 12:09:58 PM EDT
> To: Geoffrey Knauth <ge...@kn...>
> Cc: John T. Langton <ps...@br...>, Kenroy G. Granville  
> <kg...@cs...>
> Subject: Re: [Jscheme-user] GrewpEdit in JScheme
>
>
> On Jul 3, 2004, at 12:00 PM, Geoffrey Knauth wrote:
>
>> 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.
> Great. We'll rename the application. Should fix this bug.
>> -- 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,alignm 
>> entX=0.0,alignmentY=0.5,border=javax.swing.plaf.BorderUIResource$Compo 
>> undBorderUIResource@6c15a4,flags=1200,maximumSize=,minimumSize=,prefer 
>> redSize=,defaultIcon=,disabledIcon=,disabledSelectedIcon=,margin=javax 
>> .swing.plaf.InsetsUIResource[top=2,left=14,bottom=2,right=14],paintBor 
>> der=true,paintFocus=true,pressedIcon=,rolloverEnabled=false,rolloverIc 
>> on=,rolloverSelectedIcon=,selectedIcon=,text=Join,defaultCapable=true] 
>>  is (undefined tag  ())
> Ouch. I'll track it down. Thanks !
>
>>
>> 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?
> Yes. I'll look into it for Safari..
>
>> -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.
> Ahh. We put in a System.exit, I'll get rid of that.... hmmmm
>
>>   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.
> 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.
> OK...
>>
>> I'll have to try Solaris later.  The kids want to go canoeing!
> We're going out to the park too.
> Thanks for the reports! It is really helpful and I greatly appreciate  
> it.
>
> Cheers,
> Tim
>
>>
>> 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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>>
>