# Copyright (c) 2007 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: Tag.pm,v 1.4 2008/08/18 21:01:53 aviggio Exp $
package Bivio::UI::XML::Widget::Tag;
use strict;
use Bivio::Base 'Widget.ControlBase';
use Bivio::UI::ViewLanguageAUTOLOAD;

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.4 $ =~ /\d+/g);

sub control_on_render {
    my($self, $source, $buffer) = @_;
    my($tag) = $self->render_simple_attr('tag', $source);
    $$buffer .= "<$tag";
    $self->render_attr('attributes', $source, $buffer);
    my($b) = '';
    $$buffer .= $self->unsafe_render_attr('value', $source, \$b) && length($b)
	? ">$b</$tag>\n" : "/>\n";
    return;
}

sub initialize {
    my($self) = @_;
    $self->initialize_attr('tag');
    $self->initialize_attr('value', '');
    $self->initialize_attr(attributes => sub {
        my($attr) = $self->get_shallow_copy(qr{^[A-Z0-9]+$});
	return Join([map({
	    my($k, $v) = ($_, $attr->{$_});
	    $k = lc($k);
	    (
		qq{ $k="},
		[\&_to_xml, $v],
		'"',
	    );
	} sort(keys(%$attr)))]);
    });
    return shift->SUPER::initialize(@_);
}


sub internal_as_string {
    return shift->unsafe_get('tag', 'value');
}

sub internal_new_args {
    my(undef, $tag, $value, $attrs) = @_;
    return {
	tag => $tag,
	value => $value,
	($attrs ? %$attrs : ()),
    };
}

sub _to_xml {
    return Bivio::Type->to_xml($_[1]);
}

1;