Re: [MacPerl] BBedit filter problem

[Jim Correia <correia@barebones.com>]

On 12:21 AM 12/26/00 robinmcf@altern.org wrote:

> Ok did that, but I still get the hangs - however if I run the
> SetFrontProcess part on it's own (ie in a small test script) it works
> as it is supposed too

Your hang is happening outside of BBEdit, but being the nice guy that I
am (and I am on vacation this week too!) I'll help out ;-).

You can't call standard file from the background.  Your SetFrontProcess
part doesn't work because SetFrontProcess just schedules the process to
come to the front - it comes to the front later when it can.  So you
need to sit and spin while it comes to the front (and MacPerl will give
the OS time).

Here is my utility code for doing the same, worked into your script:

#! perl -w

#=========== declare includes =============

use strict;
use diagnostics-verbose;
use Mac::Events;
use Mac::StandardFile;
use Mac::Processes;

sub AppToFront
{
    my $creator = shift @_;
    
    my $result = 0;

    my $psn = kNoProcess;
    my $psi;
    
    while ( ( ! $result ) && ( $psn = GetNextProcess($psn) ) )
    {
        $psi = GetProcessInformation($psn);
        
        if ( $psi->processSignature eq $creator )
        {
            SetFrontProcess($psn);
            $result = 1;
        }
    }
    
    # since SetFrontProcess only schedules the process to come
    # to the front, we have to wait in a loop here until it
    # actually does come to the front
    
    $result = 0;
    $psn = kNoProcess;

    while ( ( ! $result ) && ( $psn = GetFrontProcess() ) )
    {
        $psi = GetProcessInformation($psn);
        
        if ( $psi->processSignature eq $creator )
        {
            $result = 1;
        }
    }
    
    return $result;
}

sub MacPerlFront
{
    return AppToFront('McPL');
}

sub BBEditFront
{
    return AppToFront('R*ch');
}


#========== declare variables =============

my($version,$file,$comma,$ProcessNumber);
my (@FileInfo,%Process);

#============= script body ================
$version="Script =-> $0   version =-> 1.0.a";
$comma="\'";

# -- this part should bring MacPerl to the front
MacPerlFront();

$file=StandardGetFile(0,0) or die"there's a problem getting the file
info: $^E";
if ($file->sfGood())
{
    @FileInfo=MacPerl::GetFileInfo($file->sfFile());

    print "creator code= $comma$FileInfo[0]$comma  file
type=$comma$FileInfo[1]$comma\n";
    print "path to file = $comma",$file->sfFile(),"$comma\n";
}

BBEditFront();

#========= sub routine separator ===========

-- 
Jim Correia                                Bare Bones Software, Inc.
correia@barebones.com                     <http://web.barebones.com>

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