--- loncom/interface/lonevaluate.pm	2001/01/03 16:20:59	1.1
+++ loncom/interface/lonevaluate.pm	2006/12/05 02:55:52	1.20
@@ -1,38 +1,190 @@
 # The LearningOnline Network
 # Evaluate
 #
-# (Internal Server Error Handler
+# $Id: lonevaluate.pm,v 1.20 2006/12/05 02:55:52 albertel Exp $
 #
-# (Login Screen
-# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
-# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
+# Copyright Michigan State University Board of Trustees
 #
-# 3/1/1 Gerd Kortemeyer)
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 #
-# 3/1 Gerd Kortemeyer
+# 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::lonevaluate;
 
 use strict;
+use Apache::lonnet;
 use Apache::Constants qw(:common);
+use Apache::loncommon();
+use Apache::lonenc();
+use LONCAPA();
 
 sub handler {
     my $r = shift;
-    $r->content_type('text/html');
+    &Apache::loncommon::content_type($r,'text/html');
+    &Apache::loncommon::no_cache($r);
+    
     $r->send_http_header;
     return OK if $r->header_only;
 
-# --------------------------------------------------- Print login screen header
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']);
+    my $feedurl=$env{'form.postdata'};
+    $feedurl=~s/^http\:\/\///;
+    $feedurl=~s/^$ENV{'SERVER_NAME'}//;
+    $feedurl=~s/^$ENV{'HTTP_HOST'}//;
+
+    $feedurl=&Apache::lonnet::declutter($feedurl);
+
+    my $title=&Apache::lonnet::gettitle($feedurl);
+    my $showurl=&Apache::lonenc::check_encrypt($feedurl);
+
+    my ($rdomain,$rauth)=($feedurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\//);
+
+    my $prefix=$env{'user.name'}.'@'.$env{'user.domain'}.'___'.
+	$feedurl.'___';
+
+    my @items=('correct','helpful','depth','clear','technical','comments',
+               'timestamp');
+
+    my @retrieve=map{ $prefix.$_ } @items;
+
+    my %currenteval=
+       &Apache::lonnet::get('nohist_resevaldata',\@retrieve,$rdomain,$rauth);
+
+    my $already=($currenteval{$prefix.'timestamp'} ne '');
+
+    $env{'form.timestamp'}=time;
+
+    my $warning='';
+
+    if ($env{'form.submiteval'} eq 'true') {
+# ------------------------------------------------ User is submitting something
+        my $complete=1;
+	foreach my $item (@items) {
+	    if ($env{'form.'.$item}) {
+		$currenteval{$prefix.$item}=$env{'form.'.$item};
+            } elsif ($item ne 'comments') {
+                $complete=0;
+            }
+        }
+        if ($complete) {
+	    my $showurl=&Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($feedurl));
+	    my $js =<<ENDJS;
+<script type="text/javascript">
+    function goback() {
+	if ((window.name=='loncapaclient')) {
+            window.location='$showurl';
+        } else {
+            self.close();
+        }
+    }
+</script>
+ENDJS
+
+            my $start_page = 
+	        &Apache::loncommon::start_page('Evaluate Resource',$js);
+	    $r->print(<<ENDHEADER);
+$start_page
+<h1>Thank you for your input!</h1>
+ENDHEADER
+       $r->print('Storing feedback: '.
+           &Apache::lonnet::put('nohist_resevaldata',\%currenteval,$rdomain,$rauth));
+           unless ($already) {
+	       $r->print('<br />Logging first evaluation');
+           }
+           $r->print(
+            '<script type="text/javascript">setTimeout("goback()",2000);</script>'.&Apache::loncommon::end_page());
+           return OK;
+        } else {
+	    $warning='Please fill out all fields below';
+        }
+   
+    }
+
+# ---------------------------------------------------------- Dial in old values
+    my $dialold='';
+    my $oldcomments='';
+
+    foreach my $item (@items) {
+       unless ($item eq 'comments') {
+           unless (($item eq 'timestamp') || 
+                   (!defined($currenteval{$prefix.$item}))) {
+              $dialold.=
+                   'document.evaluation.'.$item.'.selectedIndex='.
+                   $currenteval{$prefix.$item}.";\n";
+	   }
+       } else {
+           $oldcomments=$currenteval{$prefix.$item};
+       }       
+    }
+# ------------------------------------------------------- Print out eval screen
+    my $standardoptions=(<<ENDOPTIONS);
+<option value="0">-</option>
+<option value="1">Strongly Disagree</option>
+<option value="2">Disagree</option>
+<option value="3">Neutral</option>
+<option value="4">Agree</option>
+<option value="5">Strongly Agree</option>
+ENDOPTIONS
+    
+    my $start_page = &Apache::loncommon::start_page('Evaluate Resource');
+    my $end_page   = &Apache::loncommon::end_page();
     $r->print(<<ENDDOCUMENT);
-<html>
-<head>
-<title>The LearningOnline Network with CAPA</title>
-</head>
-<body bgcolor="#FFFFFF">
-<h1>Evaluate</h1>
-<img src="/adm/lonKaputt/lonconstruct.gif">
-</body>
-</html>
+$start_page
+<tt>$title</tt><br /><br />
+<h3><font color="red">$warning</font></h3>
+Please rank the following criteria:
+<form method="post" name="evaluation" action="/adm/evaluate">
+<input type="hidden" name="submiteval" value="true" />
+<input type="hidden" name="postdata" value="$showurl" />
+The material appears to be correct
+<br /><select name="correct">
+$standardoptions
+</select>
+<hr />
+The material is helpful
+<br /><select name="helpful">
+$standardoptions
+</select>
+<hr />
+The material is covered with sufficient depth
+<br /><select name="depth">
+$standardoptions
+</select>
+<hr />
+The material is presented in a clear way
+<br /><select name="clear">
+$standardoptions
+</select>
+<hr />
+The resource is technically correct 
+(loads fast enough, does not produce errors, links work, etc) 
+<br /><select name="technical">
+$standardoptions
+</select>
+<hr />
+Any comments?
+<br /><textarea name="comments" cols="40" rows="5">$oldcomments</textarea>
+<script type="text/javascript">$dialold</script>
+<br /><input type="submit" value="Submit Evaluation" />
+</form>
+$end_page
 ENDDOCUMENT
     return OK;
 }