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GraphvizPlugin.pm
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GraphvizPlugin.pm
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# Plugin for Foswiki - The Free and Open Source Wiki, http://foswiki.org/
#
# GraphvizPlugin is Copyright (C) 2015 Michael Daum http://michaeldaumconsulting.com
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details, published at
# http://www.gnu.org/copyleft/gpl.html
package Foswiki::Plugins::GraphvizPlugin;
use strict;
use warnings;
use Foswiki::Func ();
use Foswiki::Plugins ();
use Foswiki::Attrs ();
use Foswiki::Plugins::WysiwygPlugin ();
our $VERSION = '0.10';
our $RELEASE = '11 Aug 2015';
our $SHORTDESCRIPTION = 'Draw graphs using the !GraphViz utility';
our $NO_PREFS_IN_TOPIC = 1;
our $core;
sub core {
unless (defined $core) {
require Foswiki::Plugins::GraphvizPlugin::Core;
$core = new Foswiki::Plugins::GraphvizPlugin::Core();
}
return $core;
}
sub initPlugin {
Foswiki::Func::registerTagHandler('GRAPHVIZ', sub { return core->GRAPHVIZ(@_); });
Foswiki::Plugins::WysiwygPlugin::addXMLTag('dot', sub { 1 });
Foswiki::Plugins::WysiwygPlugin::addXMLTag('graphviz', sub { 1 });
return 1;
}
sub commonTagsHandler {
my $topic = $_[1];
my $web = $_[2];
$_[0] =~ s/<(?:graphviz|dot)(.*?)>(.*?)<\/(?:graphviz|dot)>/_handleXML($web, $topic, $1, $2)/gise;
}
sub _handleXML {
my ($web, $topic, $attrs, $code) = @_;
my $params = new Foswiki::Attrs($attrs);
delete $params->{_RAW};
delete $params->{_ERROR};
$params->{_DEFAULT} = $code;
my $session = $Foswiki::Plugins::SESSION;
return core->GRAPHVIZ($session, $params, $topic, $web);
}
sub afterSaveHandler {
core->afterSaveHandler(@_);
}
sub finishPlugin {
undef $core;
}
1;