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XJS Extension for WeirdX
by Christian Werner
<Christian.Werner@t-online.de>
http://home.t-online.de/home/Christian.Werner/xjs.htm
Last modified: Wed Aug 2 23:44:42 JST 2000
# This document is written by ymnk<ymnk@jcraft.com>, but
# contents of this documents is just a quote from Christian Werner's web page
# http://home.t-online.de/home/Christian.Werner/xjs.htm
# Problems(typo, ambiguous descriptions,etc.) in this document belong with me.
# Please don't make complaints to him.
What about giving X client programs access to the JavaScript(tm) engine
if they are executing in a Java(tm) applet in your Navigator or MSIE ???
Netscape invented the LiveConnect API for that purpose. By adding
the XJS extension to WeirdX specialized X clients can evaluate JavaScript
expressions or call JavaScript functions, eg to open another browser window
or to popup a browser alert box.
How to set it up
================
1. Add the XJS extension to the applet parameters, eg
<PARAM NAME="weirdx.extension" VALUE="DummySHAPE,XJS">
2. Give the applet the right to execute JavaScript code by adding
MAYSCRIPT="true" to the applet/embed/object tags, eg
<APPLET ... MAYSCRIPT="true"> ... </APPLET>
#An example is available at 'misc/xjs/weirdx-JRE12.html'
3. Get the sources for the X extension and sample clients, compile it and
try out the jeval sample program, eg
you@yourbox $ jeval 'window.open("http://java.sun.com", "sun")'
Notes: So far, I tested it on Windows with Navigator 4.7 and MSIE 5.0 and
the X extension and clients on Linux 2.2.x (GLIBC). Unfortunately, the JDK 1.2
plugin executed in MSIE 5.0 does not support the LiveConnect.
Sources for the X extension
===========================
They are included at misc/xjs/xjs.tar.gz
Licensing
=========
GPL for the WeirdX parts, X Consortium license for the extension library
and client parts.
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