# 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: TrimmedText.pm,v 1.2 2011/09/21 22:16:07 moeller Exp $
package Bivio::UI::XHTML::Widget::TrimmedText;
use strict;
use Bivio::Base 'HTMLWidget.Join';
use Bivio::UI::ViewLanguageAUTOLOAD;

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.2 $ =~ /\d+/g);
my($_JS) = b_use('HTMLWidget.JavaScript');

sub initialize {
    my($self) = @_;
    $self->put_unless_exists(cutoff => 200);
    b_die('missing id') unless $self->unsafe_get('ID');
    $self->put(values => [
	Script('common'),
	Script('trim_text'),
	Tag('DIV', {
	    ID => $self->get('ID'),
	    value => $self->get('value'),
	}),
    ]);
    return shift->SUPER::initialize(@_);
}

sub internal_new_args {
    return shift->internal_compute_new_args([qw(value ?cutoff)], \@_);
}

sub render {
    my($self, $source, $buffer) = @_;
    my($buf) = '';
    shift->SUPER::render($source, \$buf);
    return
	unless defined($buf) && length($buf);
    $$buffer .= $buf;
    return
	unless length($buf) > $self->get('cutoff');
    my($id) = ${$self->render_attr('ID', $source)};
    $_JS->render($source, $buffer, undef, undef,
        "b_trim_text('$id', @{[$self->get('cutoff')]});");
    return;
}

1;