nt to retrieve parameter values on a user action, and there isn't a
way to perform a callback yet. Perhaps export a new IBAction from
the File Owner that dumps the parameters to stdout?
Exporting a new action sounds like the way to go. Though using a
scheme similar to the returnArguments:«with variable arguments» --
this turned out to be far more useful than the performButtonClick: I
first did.
But when we open an async. window, where exactly is stdout?
I think for this to work, tm_dialog still needs to stall, but first
write out the window token (on stdout), and then optionally the
arguments to the exported method.
So we end up (in the using script) launching tm_dialog in a
subprocess and do select() on its output pipe, to see if there is
data -- but since “packets” are sent, we also have the job of
determining boundaries (i.e. when have we read enough to parse it as
a plist and pass that on).
I think what's needed is a separate invocation of tm_dialog, so you'd
have something like a standard event loop (psuedocode):
$tm_dialog -a --parameters '{wrapAround = 1; regExp = 1;}' $TM_NIBS/
SearchDialog.nib
[...get window token in $token...]
# event loop
while( 1 )
{
# wait for user to press something
$tm_dialog --wait-for-input $token
... check plist to determine control clicked, etc ...
}
• There's a possibility that windows not attached to a process
could be orphaned, which would require users to kill the window on
the command line (if the window doesn't have a close box). If a
script is handling errors properly, this shouldn't be a problem.
You can already get into this situation now with CocoaDialog and
suchlike, but the remedy is slightly different in that you will
need to use tm_dialog to kill the window rather than killing an
external process.
We could maybe add a --list which lists ‘active’ tokens. I am sure
the need to kill a window while debugging will come up ;)
This occurred to me today, yup.
As for the code: You would make me really happy if the style (i.e.
wrt spacing and indent) would follow the rest of the source :) I try
to do the same for you when I patch CommitWindow etc. ;)
I was trying to match the style, believe it or not. :) I'll do a pass
to clean this up before checking anything in.
Chris
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