I've committed to CVS a slight modification of the callback system.
In particular, for script message callbacks (that "Jmol executing
script" message) the JavaScript interface now allows for:
mymessagecallbackfunction(target,message,additionalinfo)
where that third parameter is the script that is executing. This, of
course, allows for better debugging and possibly better response to
user action, because the web application now has information about
WHICH button, for example, was pressed.
Of course, because JavaScript is loose with its function types, the
standard format
mymessagecallbackfunction(target,message)
works just the same as always -- it just disregards the additionalinfo
coming back. So this change won't have any bearing on any web
applications already using callbacks.
I was trying to implement this so that on the "script completed"
message there was also an indication of WHICH script was completed,
but, alas, that requires a change to the JmolStatusListener interface
(I think), and that's more involved (I know).
As part of this commit, I also added to the System.out messages on
applet startup so that any callbacks are identified. Again, this is
for better debugging.
Bob Hanson
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