--- loncom/interface/lonfeedback.pm	2001/07/26 23:26:56	1.13
+++ loncom/interface/lonfeedback.pm	2001/08/10 18:39:58	1.15
@@ -15,7 +15,7 @@
 # 2/13 Guy Albertelli
 # 7/25 Gerd Kortemeyer
 # 7/26 Guy Albertelli
-# 7/26 Gerd Kortemeyer
+# 7/26,8/10 Gerd Kortemeyer
 
 
 package Apache::lonfeedback;
@@ -60,6 +60,11 @@ sub mail_screen {
              rec=1;
           } 
         }
+        if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
+          if (document.mailform.elements.anondiscuss.checked) {
+             rec=1;
+          } 
+        }
 
         if (rec) {
 	    document.mailform.submit();
@@ -170,6 +175,11 @@ sub screen_header {
     $options.='<br><input type=checkbox name=discuss> '.
 	'<b>Contribution to course discussion of resource</b>';
   }
+  if ($ENV{'request.course.id'}) {
+    $options.='<br><input type=checkbox name=anondiscuss> '.
+	'<b>Anonymous contribution to course discussion of resource</b>'.
+        ' (name only visible to course faculty)';
+  }
   return $options;
 }
 
@@ -262,13 +272,16 @@ sub send_msg {
 }
 
 sub adddiscuss {
-    my ($symb,$email)=@_;
+    my ($symb,$email,$anon)=@_;
     my $status='';
     my %contrib=('message'      => $email,
                  'sendername'   => $ENV{'user.name'},
                  'senderdomain' => $ENV{'user.domain'});
+    if ($anon) {
+	$contrib{'anonymous'}='true';
+    }
     if (($symb) && ($email)) {
-       $status='Adding to class discussion: '.
+       $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
         &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                      $ENV{'course.'.$ENV{'request.course.id'}.'.num'}).
@@ -284,7 +297,53 @@ sub handler {
      $r->send_http_header;
      return OK;
   }
-  
+
+# --------------------------- Get query string for limited number of parameters
+
+    map {
+       my ($name, $value) = split(/=/,$_);
+       $value =~ tr/+/ /;
+       $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+       if (($name eq 'hide') || ($name eq 'unhide')) {
+           unless ($ENV{'form.'.$name}) {
+              $ENV{'form.'.$name}=$value;
+	   }
+       }
+    } (split(/&/,$ENV{'QUERY_STRING'}));
+
+  if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
+# ----------------------------------------------------------------- Hide/unhide
+    $r->content_type('text/html');
+    $r->send_http_header;
+
+    my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
+
+    my ($symb,$idx)=split(/\:\:\:/,$entry);
+    my ($map,$ind,$url)=split(/\_\_\_/,$symb);
+
+    my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
+                     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+
+        
+    my $currenthidden=$contrib{'hidden'};
+    
+    if ($ENV{'form.hide'}) {
+	$currenthidden.='.'.$idx.'.';
+    } else {
+        $currenthidden=~s/\.$idx\.//g;
+    }
+    my %newhash=('hidden' => $currenthidden);
+
+    &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
+                     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+
+    &redirect_back($r,'/res/'.$url,'Changed discussion status<p>','0');
+
+      
+  } else {
+# ------------------------------------------------------------- Normal feedback
   my $feedurl=$ENV{'form.postdata'};
   $feedurl=~s/^http\:\/\///;
   $feedurl=~s/^$ENV{'SERVER_NAME'}//;
@@ -345,6 +404,11 @@ sub handler {
 	  $typestyle.=&adddiscuss($symb,$message);
       }
 
+      if ($ENV{'form.anondiscuss'}) {
+	  $typestyle.=&adddiscuss($symb,$message,1);
+      }
+
+
 # Receipt screen and redirect back to where came from
       &redirect_back($r,$feedurl,$typestyle,$numsent,$status);
 
@@ -357,6 +421,7 @@ sub handler {
 # Ambiguous Problem Resource
     $r->internal_redirect('/adm/ambiguous');
   }
+}
   return OK;
 } 
 
@@ -365,3 +430,4 @@ __END__
 
 
 
+