# Copyright (c) 2011 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: XLinkURI.pm,v 1.1 2011/12/20 01:33:17 nagler Exp $
package Bivio::UI::XHTML::Widget::XLinkURI;
use strict;
use Bivio::Base 'UI.Widget';
use Bivio::UI::ViewLanguageAUTOLOAD;

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.1 $ =~ /\d+/g);
my($_TI) = b_use('Agent.TaskId');

sub NEW_ARGS {
    return [qw(facade_label)];
}

sub initialize {
    my($self) = @_;
    my($l) = $self->initialize_attr('facade_label');
    $self->initialize_attr(_uri =>
	$_TI->is_valid_name($l) ? URI({
	    task_id => $_TI->from_name($l),
	    query => undef,
	    path_info => undef,
	}) : [sub {
	    my($source) = @_;
	    my($req) = $self->req;
	    return URI(
		vs_constant(
		    $req,
		    $self->qualify_label(
			$self->render_simple_attr(facade_label => $req)),
	        ),
	    );
	}],
    );
    return;
}

sub qualify_label {
    my(undef, $label) = @_;
    return "xlink_$label";
}

sub render {
    shift->render_attr(_uri => @_);
    return;
}

1;