# Copyright (c) 2003 bivio Software, Inc.  All Rights Reserved.
#
# Visit http://www.bivio.biz for more info.
# 
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
# 
# This library 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
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library;  If not, you may get a copy from:
# http://www.opensource.org/licenses/lgpl-license.html
# 
# $Id: JoinHandler.pm,v 2.3 2010/10/22 00:15:56 moeller Exp $
package Bivio::UI::HTML::Widget::JoinHandler;
use strict;
use Bivio::Base 'Widget.Join';

our($VERSION) = sprintf('%d.%02d', q$Revision: 2.3 $ =~ /\d+/g);

sub get_html_field_attributes {
    my($self) = shift;
    my($attrs_by_name) = {};

    foreach my $handler (@{$self->get('values')}) {
	my($str) = $handler->get_html_field_attributes(@_);

	while ($str) {
	    $str =~ s/^\s+(\w+)="([^"]+)"// || b_die('invalid pattern');
	    push(@{$attrs_by_name->{lc($1)} ||= []}, $2);
	}
    }
    return join('',
        map(" $_=\"" . join(';', @{$attrs_by_name->{$_}}) . '"',
	    sort(keys(%$attrs_by_name))));
}

1;