# Blosxom Plugin: trackback_counts_display
# Author(s): Rael Dornfest <rael@oreilly.com> 
# Version: 2.0b2
# Documentation: See the bottom of this file or 
# type: perldoc trackback_counts_display

package trackback_counts_display;

# --- Configurable variables -----

# What is the trackbacks base URL?
my $trackback_url = "http://www.example/tb.cgi";

# Where are trackbacks kept?
my $trackback_dir = "/Library/WebServer/Data/trackbacks";

# --------------------------------

use File::Spec::Functions; 

$trackback; # use as $trackback_counts_display::trackback in flavour templates

sub start {
  -d $trackback_dir or return 0;
  1;
}

sub story {
  my($pkg, $path, $filename, $story_ref) = @_;
  my $trackback_id = "$path/$filename"; 
  $trackback_id =~ s!^/!!;
  $trackback_id =~ tr/a-zA-Z0-9/_/cs;

  require Storable;
  my $trackback_count = -e "$trackback_dir/$trackback_id.stor" ? @{Storable::retrieve("$trackback_dir/$trackback_id.stor")} : 0;
  my $trackback_text = $trackback_count == 1 ? 'trackback' : 'trackbacks';
 
  $trackback = qq{<a href="$trackback_url?__mode=list&tb_id=$trackback_id" onclick="window.open(this.href, 'trackbacks', 'width=640,height=480,scrollbars=yes,status=yes'); return false">$trackback_count $trackback_text</a>};

  1;
}

1;

__END__

=head1 NAME

Blosxom Plug-in: trackback_counts_display

=head1 SYNOPSIS

Purpose: Incorporates TrackBack [http://www.movabletype.org/trackback/]
counts into Blosxom flavours. Populates $trackback_counts_display::trackback 
with "n trackback(s)", n being the number of trackbacks associated with a
particular story.  Further provides a popup link to the TrackBack CGI
for a view of current trackbacks for a particular story.

Assumes the MT Standalone TrackBack implementation is already up and running.

=head1 VERSION

2.0b2

Version number coincides with the version of Blosxom with which the 
current version was first bundled.

=head1 AUTHOR

Rael Dornfest  <rael@oreilly.com>, http://www.raelity.org/

=head1 SEE ALSO

Blosxom Home/Docs/Licensing: http://www.raelity.org/apps/blosxom/

Blosxom Plugin Docs: http://www.raelity.org/apps/blosxom/plugin.shtml

=head1 BUGS

Address bug reports and comments to the Blosxom mailing list 
[http://www.yahoogroups.com/group/blosxom].

=head1 LICENSE

Blosxom and this Blosxom Plug-in
Copyright 2003, Rael Dornfest 

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.