File:
[LON-CAPA] /
loncom /
html /
res /
adm /
pages /
annotator /
admannotations.pm
Revision
1.19:
download - view:
text,
annotated -
select for diffs
Thu Apr 7 06:56:22 2005 UTC (19 years, 6 months ago) by
albertel
Branches:
MAIN
CVS tags:
version_2_1_X,
version_2_1_3,
version_2_1_2,
version_2_1_1,
version_2_1_0,
version_2_0_X,
version_2_0_99_1,
version_2_0_2,
version_2_0_1,
version_2_0_0,
version_1_99_3,
version_1_99_2,
version_1_99_1_tmcc,
version_1_99_1,
version_1_99_0_tmcc,
version_1_99_0,
HEAD
- ENV -> env
# The LearningOnline Network with CAPA
# This will take annotations and then plug them into a page.
#
# $Id: admannotations.pm,v 1.19 2005/04/07 06:56:22 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA 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.
#
# LON-CAPA 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.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
##################
package Apache::admannotations;
use strict;
use Apache::Constants qw(:common);
use Apache::lonnet;
# --------------------------------------------------------------Put annotation
sub write_annotation {
my $urlold=shift;
my $annotation=shift;
if ($annotation) {
&Apache::lonnet::put('nohist_annotations',{$urlold => $annotation});
}
return;
}
# --------------------------------------------------------------Get annotation
sub get_annotation {
my $urlnew=shift;
my %annotation=&Apache::lonnet::get('nohist_annotations',[$urlnew]);
return %annotation;
}
# ------------------------------------------------------------Construct editor
sub construct_editor {
my $annotation=shift;
if ($annotation=~/^error:/) { $annotation=''; }
my $urlnew=shift;
return(<<END_HTML)
<html>
<head>
<title>Annotations</title>
<script>
var timeout;
function changed() {
var urlnew=window.opener.clientwindow.location.href;
if (urlnew!=document.annotInfo.urlold.value) {
document.annotInfo.urlnew.value=urlnew;
document.annotInfo.submit();
}
timeout=setTimeout('changed();','1000');
}
</script>
</head>
<body BGCOLOR="#555555"
onLoad="timeout=setTimeout('changed()','1000')"
onUnload='clearTimeout(timeout);'>
<center>
<FORM name="annotInfo" method="post" action="/adm/annotations">
<TEXTAREA NAME="annotation" WRAP=ON ROWS=12 COLS=36>$annotation</TEXTAREA><br>
<INPUT TYPE="hidden" name="urlold" value="$urlnew">
<INPUT TYPE="hidden" name="urlnew" value="">
<INPUT TYPE=button name=send value="Save and Update"
onClick=
"javascript:this.form.urlnew.value=window.opener.clientwindow.location.href;this.form.submit();">
<INPUT TYPE=button name="close" value="Close (no save)" onClick="javascript:window.close();">
</FORM>
</center>
</body>
</html>
END_HTML
}
# ----------------------------------------------------Constructs error window
sub construct_error {
my $annot_error=shift;
my $button_name=shift;
return(<<END_HTML2)
<html><head>
<title>Annotations</title>
</head>
<body BGCOLOR="#555555">
<center>
<FORM name="annotInfo" method="post" action="/adm/annotations">
<table bgcolor="#FFFFFF" width="100%" height="90%" align="center">
<td>
<font size=+1><i>
$annot_error
</i></font>
</td>
</table>
<INPUT TYPE="hidden" name="urlold" value="">
<INPUT TYPE="hidden" name="urlnew" value="">
<INPUT TYPE=button name=send value="$button_name"
onClick=
"javascript:this.form.urlnew.value=window.opener.clientwindow.location.href;this.form.submit();">
<INPUT TYPE=button name="close" value="Close" onClick="javascript:window.close();">
</FORM>
</center>
</body>
</html>
END_HTML2
}
# ---------------------------------------------------------------Main Handler
sub handler {
my $r=shift;
$r->content_type('text/html');
$r->send_http_header;
return OK if $r->header_only;
my $page;
my %annot_hash;
my $urlold=$env{'form.urlold'};
$urlold=~s/^http\:\/\///;
$urlold=~s/^[^\/]+//;
$urlold=~s/\?.*$//;
my $urlnew=$env{'form.urlnew'};
$urlnew=~s/^http\:\/\///;
$urlnew=~s/^[^\/]+//;
$urlnew=~s/\?.*$//;
my $annotation=$env{'form.annotation'};
if ($urlold) {
write_annotation($urlold,$annotation);
}
if (exists($env{'form.urlnew'})) {
unless ($urlnew) {
$page=construct_error("Cannot annotate current window. Please point your browser to a LON-CAPA page and then 'continue'.","continue");
} else {
if ($urlold eq $urlnew) {
$annot_hash{$urlnew}=$annotation;
} else {
%annot_hash=get_annotation($urlnew);
}
$page=construct_editor($annot_hash{$urlnew},$env{'form.urlnew'});
}
}
$r->print($page);
return OK;
}
1;
__END__
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