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Diff for /loncom/interface/lonnavmaps.pm between versions 1.415.4.1 and 1.495

version 1.415.4.1, 2009/09/15 00:52:39 version 1.495, 2013/05/04 23:58:00
Line 2 Line 2
 # Navigate Maps Handler  # Navigate Maps Handler
 #  #
 # $Id$  # $Id$
   
 #  #
 # Copyright Michigan State University Board of Trustees  # Copyright Michigan State University Board of Trustees
 #  #
Line 27 Line 28
 #  #
 ###  ###
   
 package Apache::lonnavmaps;  
   
 use strict;  
 use GDBM_File;  
 use Apache::loncommon();  
 use Apache::lonenc();  
 use Apache::lonlocal;  
 use Apache::lonnet;  
 use POSIX qw (floor strftime);  
 use Time::HiRes qw( gettimeofday tv_interval );  
 use LONCAPA;  
 use DateTime();  
   
 # symbolic constants  
 sub SYMB { return 1; }  
 sub URL { return 2; }  
 sub NOTHING { return 3; }  
   
 # Some data  
   
 my $resObj = "Apache::lonnavmaps::resource";  
   
 # Keep these mappings in sync with lonquickgrades, which uses the colors  
 # instead of the icons.  
 my %statusIconMap =   
     (  
      $resObj->CLOSED       => '',  
      $resObj->OPEN         => 'navmap.open.gif',  
      $resObj->CORRECT      => 'navmap.correct.gif',  
      $resObj->PARTIALLY_CORRECT      => 'navmap.partial.gif',  
      $resObj->INCORRECT    => 'navmap.wrong.gif',  
      $resObj->ATTEMPTED    => 'navmap.ellipsis.gif',  
      $resObj->ERROR        => ''  
      );  
   
 my %iconAltTags =   
     ( 'navmap.correct.gif' => 'Correct',  
       'navmap.wrong.gif'   => 'Incorrect',  
       'navmap.open.gif'    => 'Open' );  
   
 # Defines a status->color mapping, null string means don't color  
 my %colormap =   
     ( $resObj->NETWORK_FAILURE        => '',  
       $resObj->CORRECT                => '',  
       $resObj->EXCUSED                => '#3333FF',  
       $resObj->PAST_DUE_ANSWER_LATER  => '',  
       $resObj->PAST_DUE_NO_ANSWER     => '',  
       $resObj->ANSWER_OPEN            => '#006600',  
       $resObj->OPEN_LATER             => '',  
       $resObj->TRIES_LEFT             => '',  
       $resObj->INCORRECT              => '',  
       $resObj->OPEN                   => '',  
       $resObj->NOTHING_SET            => '',  
       $resObj->ATTEMPTED              => '',  
       $resObj->ANSWER_SUBMITTED       => '',  
       $resObj->PARTIALLY_CORRECT      => '#006600'  
       );  
 # And a special case in the nav map; what to do when the assignment  
 # is not yet done and due in less than 24 hours  
 my $hurryUpColor = "#FF0000";  
   
 sub close {  
     if ($env{'environment.remotenavmap'} ne 'on') { return ''; }  
     return(<<ENDCLOSE);  
 <script type="text/javascript">  
 window.status='Accessing Nav Control';  
 menu=window.open("/adm/rat/empty.html","loncapanav",  
                  "height=600,width=400,scrollbars=1");  
 window.status='Closing Nav Control';  
 menu.close();  
 window.status='Done.';  
 </script>  
 ENDCLOSE  
 }  
   
 sub update {  
     if ($env{'environment.remotenavmap'} ne 'on') { return ''; }  
     if (!$env{'request.course.id'}) { return ''; }  
     if ($ENV{'REQUEST_URI'}=~m|^/adm/navmaps|) { return ''; }  
     return(<<ENDUPDATE);  
 <form name="navform"></form>  
 <script type="text/javascript">  
 this.document.navform.action='/adm/navmaps#curloc';  
 this.document.navform.target='loncapanav';  
 this.document.navform.submit();  
 </script>  
 ENDUPDATE  
 }  
   
 # Convenience functions: Returns a string that adds or subtracts  
 # the second argument from the first hash, appropriate for the   
 # query string that determines which folders to recurse on  
 sub addToFilter {  
     my $hashIn = shift;  
     my $addition = shift;  
     my %hash = %$hashIn;  
     $hash{$addition} = 1;  
   
     return join (",", keys(%hash));  
 }  
   
 sub removeFromFilter {  
     my $hashIn = shift;  
     my $subtraction = shift;  
     my %hash = %$hashIn;  
   
     delete $hash{$subtraction};  
     return join(",", keys(%hash));  
 }  
   
 # Convenience function: Given a stack returned from getStack on the iterator,  
 # return the correct src() value.  
 sub getLinkForResource {  
     my $stack = shift;  
     my $res;  
   
     # Check to see if there are any pages in the stack  
     foreach $res (@$stack) {  
         if (defined($res)) {  
     my $anchor;  
     if ($res->is_page()) {  
  foreach my $item (@$stack) { if (defined($item)) { $anchor = $item; }  }  
  $anchor=&escape($anchor->shown_symb());  
  return ($res->link(),$res->shown_symb(),$anchor);  
     }  
             # in case folder was skipped over as "only sequence"  
     my ($map,$id,$src)=&Apache::lonnet::decode_symb($res->symb());  
     if ($map=~/\.page$/) {  
  my $url=&Apache::lonnet::clutter($map);  
  $anchor=&escape($src->shown_symb());  
  return ($url,$res->shown_symb(),$anchor);  
     }  
         }  
     }  
   
     # Failing that, return the src of the last resource that is defined  
     # (when we first recurse on a map, it puts an undefined resource  
     # on the bottom because $self->{HERE} isn't defined yet, and we  
     # want the src for the map anyhow)  
     foreach my $item (@$stack) {  
         if (defined($item)) { $res = $item; }  
     }  
   
     if ($res) {  
  return ($res->link(),$res->shown_symb());  
     }  
     return;  
 }  
   
 # Convenience function: This separates the logic of how to create  
 # the problem text strings ("Due: DATE", "Open: DATE", "Not yet assigned",  
 # etc.) into a separate function. It takes a resource object as the  
 # first parameter, and the part number of the resource as the second.  
 # It's basically a big switch statement on the status of the resource.  
   
 sub getDescription {  
     my $res = shift;  
     my $part = shift;  
     my $status = $res->status($part);  
   
     my $open = $res->opendate($part);  
     my $due = $res->duedate($part);  
     my $answer = $res->answerdate($part);  
   
     if ($status == $res->NETWORK_FAILURE) {   
         return &mt("Having technical difficulties; please check status later");   
     }  
     if ($status == $res->NOTHING_SET) {  
         return &mt("Not currently assigned.");  
     }  
     if ($status == $res->OPEN_LATER) {  
         return &mt("Open ") .timeToHumanString($open,'start');  
     }  
     if ($status == $res->OPEN) {  
         if ($due) {  
     if ($res->is_practice()) {  
  return &mt("Closes ")."  " .timeToHumanString($due,'start');  
     } else {  
  return &mt("Due")."  " .timeToHumanString($due,'end');  
     }  
         } else {  
             return &mt("Open, no due date");  
         }  
     }  
     if ($status == $res->PAST_DUE_ANSWER_LATER) {  
         return &mt("Answer open")." " .timeToHumanString($answer,'start');  
     }  
     if ($status == $res->PAST_DUE_NO_ANSWER) {  
  if ($res->is_practice()) {  
     return &mt("Closed")." " . timeToHumanString($due,'start');  
  } else {  
     return &mt("Was due")." " . timeToHumanString($due,'end');  
  }  
     }  
     if (($status == $res->ANSWER_OPEN || $status == $res->PARTIALLY_CORRECT)  
  && $res->handgrade($part) ne 'yes') {  
         return &mt("Answer available");  
     }  
     if ($status == $res->EXCUSED) {  
         return &mt("Excused by instructor");  
     }  
     if ($status == $res->ATTEMPTED) {  
         return &mt("Answer submitted, not yet graded");  
     }  
     if ($status == $res->TRIES_LEFT) {  
         my $tries = $res->tries($part);  
         my $maxtries = $res->maxtries($part);  
         my $triesString = "";  
         if ($tries && $maxtries) {  
             $triesString = '<font size="-1"><i>('.&mt('[_1] of [quant,_2,try,tries] used',$tries,$maxtries).')</i></font>';  
             if ($maxtries > 1 && $maxtries - $tries == 1) {  
                 $triesString = "<b>$triesString</b>";  
             }  
         }  
         if ($due) {  
             return &mt("Due")." " . timeToHumanString($due,'end') .  
                 " $triesString";  
         } else {  
             return &mt("No due date")." $triesString";  
         }  
     }  
     if ($status == $res->ANSWER_SUBMITTED) {  
         return &mt('Answer submitted');  
     }  
 }  
   
 # Convenience function, so others can use it: Is the problem due in less than  
 # 24 hours, and still can be done?  
   
 sub dueInLessThan24Hours {  
     my $res = shift;  
     my $part = shift;  
     my $status = $res->status($part);  
   
     return ($status == $res->OPEN() ||  
             $status == $res->TRIES_LEFT()) &&  
     $res->duedate($part) && $res->duedate($part) < time()+(24*60*60) &&  
     $res->duedate($part) > time();  
 }  
   
 # Convenience function, so others can use it: Is there only one try remaining for the  
 # part, with more than one try to begin with, not due yet and still can be done?  
 sub lastTry {  
     my $res = shift;  
     my $part = shift;  
   
     my $tries = $res->tries($part);  
     my $maxtries = $res->maxtries($part);  
     return $tries && $maxtries && $maxtries > 1 &&  
         $maxtries - $tries == 1 && $res->duedate($part) &&  
         $res->duedate($part) > time();  
 }  
   
 # This puts a human-readable name on the env variable.  
   
 sub advancedUser {  
     return $env{'request.role.adv'};  
 }  
   
   
 # timeToHumanString takes a time number and converts it to a  
 # human-readable representation, meant to be used in the following  
 # manner:  
 # print "Due $timestring"  
 # print "Open $timestring"  
 # print "Answer available $timestring"  
 # Very, very, very, VERY English-only... goodness help a localizer on  
 # this func...  
   
   
 sub timeToHumanString {  
     my ($time,$type,$format) = @_;  
   
     # zero, '0' and blank are bad times  
     if (!$time) {  
         return &mt('never');  
     }  
     unless (&Apache::lonlocal::current_language()=~/^en/) {  
  return &Apache::lonlocal::locallocaltime($time);  
     }   
     my $now = time();  
   
     # Positive = future  
     my $delta = $time - $now;  
   
     my $minute = 60;  
     my $hour = 60 * $minute;  
     my $day = 24 * $hour;  
     my $week = 7 * $day;  
     my $inPast = 0;  
   
     # Logic in comments:  
     # Is it now? (extremely unlikely)  
     if ( $delta == 0 ) {  
         return "this instant";  
     }  
   
     if ($delta < 0) {  
         $inPast = 1;  
         $delta = -$delta;  
     }  
   
     if ( $delta > 0 ) {  
   
         my $tense = $inPast ? " ago" : "";  
         my $prefix = $inPast ? "" : "in ";  
           
         # Less than a minute  
         if ( $delta < $minute ) {  
             if ($delta == 1) { return "${prefix}1 second$tense"; }  
             return "$prefix$delta seconds$tense";  
         }  
   
         # Less than an hour  
         if ( $delta < $hour ) {  
             # If so, use minutes  
             my $minutes = floor($delta / 60);  
             if ($minutes == 1) { return "${prefix}1 minute$tense"; }  
             return "$prefix$minutes minutes$tense";  
         }  
           
         # Is it less than 24 hours away? If so,  
         # display hours + minutes  
         if ( $delta < $hour * 24) {  
             my $hours = floor($delta / $hour);  
             my $minutes = floor(($delta % $hour) / $minute);  
             my $hourString = "$hours hours";  
             my $minuteString = ", $minutes minutes";  
             if ($hours == 1) {  
                 $hourString = "1 hour";  
             }  
             if ($minutes == 1) {  
                 $minuteString = ", 1 minute";  
             }  
             if ($minutes == 0) {  
                 $minuteString = "";  
             }  
             return "$prefix$hourString$minuteString$tense";  
         }  
   
  my $dt = DateTime->from_epoch(epoch => $time)  
                  ->set_time_zone(&Apache::lonlocal::gettimezone());  
   
  # If there's a caller supplied format, use it.  
   
  if ($format ne '') {  
     my $timeStr = $dt->strftime($format);  
     return $timeStr.' ('.$dt->time_zone_short_name().')';  
  }  
   
         # Less than 5 days away, display day of the week and  
         # HH:MM  
   
         if ( $delta < $day * 5 ) {  
             my $timeStr = $dt->strftime("%A, %b %e at %I:%M %P (%Z)");  
             $timeStr =~ s/12:00 am/00:00/;  
             $timeStr =~ s/12:00 pm/noon/;  
             return ($inPast ? "last " : "this ") .  
                 $timeStr;  
         }  
           
  my $conjunction='on';  
  if ($type eq 'start') {  
     $conjunction='at';  
  } elsif ($type eq 'end') {  
     $conjunction='by';  
  }  
         # Is it this year?  
  my $dt_now = DateTime->from_epoch(epoch => $now)  
                      ->set_time_zone(&Apache::lonlocal::gettimezone());  
         if ( $dt->year() == $dt_now->year()) {  
             # Return on Month Day, HH:MM meridian  
             my $timeStr = $dt->strftime("$conjunction %A, %b %e at %I:%M %P (%Z)");  
             $timeStr =~ s/12:00 am/00:00/;  
             $timeStr =~ s/12:00 pm/noon/;  
             return $timeStr;  
         }  
   
         # Not this year, so show the year  
         my $timeStr =   
     $dt->strftime("$conjunction %A, %b %e %Y at %I:%M %P (%Z)");  
         $timeStr =~ s/12:00 am/00:00/;  
         $timeStr =~ s/12:00 pm/noon/;  
         return $timeStr;  
     }  
 }  
   
   
 =pod  =pod
   
 =head1 NAME  =head1 NAME
   
 Apache::lonnavmap - Subroutines to handle and render the navigation  Apache::lonnavmaps - Subroutines to handle and render the navigation
     maps  
   
 =head1 SYNOPSIS  =head1 SYNOPSIS
   
   Handles navigational maps.
   
 The main handler generates the navigational listing for the course,  The main handler generates the navigational listing for the course,
 the other objects export this information in a usable fashion for  the other objects export this information in a usable fashion for
 other modules.  other modules.
   
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   
 =head1 OVERVIEW  =head1 OVERVIEW
   
 X<lonnavmaps, overview> When a user enters a course, LON-CAPA examines the  X<lonnavmaps, overview> When a user enters a course, LON-CAPA examines the
Line 545  If true, the resource's folder will not Line 164  If true, the resource's folder will not
 it. Default is false. True implies printCloseAll is false, since you  it. Default is false. True implies printCloseAll is false, since you
 can't close or open folders when this is on anyhow.  can't close or open folders when this is on anyhow.
   
   =item * B<map_no_edit_link>:
   
   If true, the title of the folder or page will not be followed by an
   icon/link to direct editing of a folder or composite page, originally
   added via the Course Editor.
   
 =back  =back
   
 =item * B<Apache::lonnavmaps::communication_status>:  =item * B<Apache::lonnavmaps::communication_status>:
Line 747  navmaps screen) uses this to display the Line 372  navmaps screen) uses this to display the
   
 =cut  =cut
   
   
   =head1 SUBROUTINES
   
   =over
   
   =item update()
   
   =item addToFilter()
   
   Convenience functions: Returns a string that adds or subtracts
   the second argument from the first hash, appropriate for the 
   query string that determines which folders to recurse on
   
   =item removeFromFilter()
   
   =item getLinkForResource()
   
   Convenience function: Given a stack returned from getStack on the iterator,
   return the correct src() value.
   
   =item getDescription()
   
   Convenience function: This separates the logic of how to create
   the problem text strings ("Due: DATE", "Open: DATE", "Not yet assigned",
   etc.) into a separate function. It takes a resource object as the
   first parameter, and the part number of the resource as the second.
   It's basically a big switch statement on the status of the resource.
   
   =item dueInLessThan24Hours()
   
   Convenience function, so others can use it: Is the problem due in less than 24 hours, and still can be done?
   
   =item lastTry()
   
   Convenience function, so others can use it: Is there only one try remaining for the
   part, with more than one try to begin with, not due yet and still can be done?
   
   =item advancedUser()
   
   This puts a human-readable name on the env variable.
   
   =item timeToHumanString()
   
   timeToHumanString takes a time number and converts it to a
   human-readable representation, meant to be used in the following
   manner:
   
   =over 4
   
   =item * print "Due $timestring"
   
   =item * print "Open $timestring"
   
   =item * print "Answer available $timestring"
   
   =back
   
   Very, very, very, VERY English-only... goodness help a localizer on
   this func...
   
   =item resource()
   
   returns 0
   
   =item communication_status()
   
   returns 1
   
   =item quick_status()
   
   returns 2
   
   =item long_status()
   
   returns 3
   
   =item part_status_summary()
   
   returns 4
   
   =item render_resource()
   
   =item render_communication_status()
   
   =item render_quick_status()
   
   =item render_long_status()
   
   =item render_parts_summary_status()
   
   =item setDefault()
   
   =item cmp_title()
   
   =item render()
   
   =item add_linkitem()
   
   =item show_linkitems_toolbar()
   
   =back
   
   =cut
   
   package Apache::lonnavmaps;
   
   use strict;
   use GDBM_File;
   use Apache::loncommon();
   use Apache::lonenc();
   use Apache::lonlocal;
   use Apache::lonnet;
   use Apache::lonmap;
   
   use POSIX qw (floor strftime);
   use Time::HiRes qw( gettimeofday tv_interval );
   use LONCAPA;
   use DateTime();
   use HTML::Entities;
   
   # For debugging
   
   use Data::Dumper;
   
   
   # symbolic constants
   sub SYMB { return 1; }
   sub URL { return 2; }
   sub NOTHING { return 3; }
   
   # Some data
   
   my $resObj = "Apache::lonnavmaps::resource";
   
   # Keep these mappings in sync with lonquickgrades, which usesthe colors
   # instead of the icons.
   my %statusIconMap = 
       (
        $resObj->CLOSED       => '',
        $resObj->OPEN         => 'navmap.open.gif',
        $resObj->CORRECT      => 'navmap.correct.gif',
        $resObj->PARTIALLY_CORRECT      => 'navmap.partial.gif',
        $resObj->INCORRECT    => 'navmap.wrong.gif',
        $resObj->ATTEMPTED    => 'navmap.ellipsis.gif',
        $resObj->ERROR        => ''
        );
   
   my %iconAltTags =   #texthash does not work here
       ( 'navmap.correct.gif'  => 'Correct',
         'navmap.wrong.gif'    => 'Incorrect',
         'navmap.open.gif'     => 'Is Open',
         'navmap.partial.gif'  => 'Partially Correct',
         'navmap.ellipsis.gif' => 'Attempted',
        );
   
   # Defines a status->color mapping, null string means don't color
   my %colormap = 
       ( $resObj->NETWORK_FAILURE        => '',
         $resObj->CORRECT                => '',
         $resObj->EXCUSED                => '#3333FF',
         $resObj->PAST_DUE_ANSWER_LATER  => '',
         $resObj->PAST_DUE_NO_ANSWER     => '',
         $resObj->ANSWER_OPEN            => '#006600',
         $resObj->OPEN_LATER             => '',
         $resObj->TRIES_LEFT             => '',
         $resObj->INCORRECT              => '',
         $resObj->OPEN                   => '',
         $resObj->NOTHING_SET            => '',
         $resObj->ATTEMPTED              => '',
         $resObj->CREDIT_ATTEMPTED       => '',
         $resObj->ANSWER_SUBMITTED       => '',
         $resObj->PARTIALLY_CORRECT      => '#006600'
         );
   # And a special case in the nav map; what to do when the assignment
   # is not yet done and due in less than 24 hours
   my $hurryUpColor = "#FF0000";
   
   sub addToFilter {
       my $hashIn = shift;
       my $addition = shift;
       my %hash = %$hashIn;
       $hash{$addition} = 1;
   
       return join (",", keys(%hash));
   }
   
   sub removeFromFilter {
       my $hashIn = shift;
       my $subtraction = shift;
       my %hash = %$hashIn;
   
       delete $hash{$subtraction};
       return join(",", keys(%hash));
   }
   
   sub getLinkForResource {
       my $stack = shift;
       my $res;
   
       # Check to see if there are any pages in the stack
       foreach $res (@$stack) {
           if (defined($res)) {
       my $anchor;
       if ($res->is_page()) {
    foreach my $item (@$stack) { if (defined($item)) { $anchor = $item; }  }
    $anchor=&escape($anchor->shown_symb());
    return ($res->link(),$res->shown_symb(),$anchor);
       }
               # in case folder was skipped over as "only sequence"
       my ($map,$id,$src)=&Apache::lonnet::decode_symb($res->symb());
       if ($map=~/\.page$/) {
    my $url=&Apache::lonnet::clutter($map);
    $anchor=&escape($res->shown_symb());
    return ($url,$res->shown_symb(),$anchor);
       }
           }
       }
   
       # Failing that, return the src of the last resource that is defined
       # (when we first recurse on a map, it puts an undefined resource
       # on the bottom because $self->{HERE} isn't defined yet, and we
       # want the src for the map anyhow)
       foreach my $item (@$stack) {
           if (defined($item)) { $res = $item; }
       }
   
       if ($res) {
    return ($res->link(),$res->shown_symb());
       }
       return;
   }
   
   
   
   sub getDescription {
       my $res = shift;
       my $part = shift;
       my $status = $res->status($part);
   
       my $open = $res->opendate($part);
       my $due = $res->duedate($part);
       my $answer = $res->answerdate($part);
   
       if ($status == $res->NETWORK_FAILURE) { 
           return &mt("Having technical difficulties; please check status later"); 
       }
       if ($status == $res->NOTHING_SET) {
           return &Apache::lonhtmlcommon::direct_parm_link(&mt('Not currently assigned'),$res->symb(),'opendate',$part);
       }
       if ($status == $res->OPEN_LATER) {
           return &mt("Open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($open,'start'),$res->symb(),'opendate',$part));
       }
       if ($res->simpleStatus($part) == $res->OPEN) {
           unless (&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) {
               my ($slot_status,$slot_time,$slot_name)=$res->check_for_slot($part);
               if ($slot_status == $res->UNKNOWN) {
                   return &mt('Reservation status unknown');
               } elsif ($slot_status == $res->RESERVED) {
                   return &mt('Reserved - ends [_1]',
                              timeToHumanString($slot_time,'end'));
               } elsif ($slot_status == $res->RESERVED_LOCATION) {
                   return &mt('Reserved - specific location(s) - ends [_1]',
                              timeToHumanString($slot_time,'end'));
               } elsif ($slot_status == $res->RESERVED_LATER) {
                   return &mt('Reserved - next open [_1]',
                              timeToHumanString($slot_time,'start'));
               } elsif ($slot_status == $res->RESERVABLE) {
                   return &mt('Reservable, reservations close [_1]',
                              timeToHumanString($slot_time,'end'));
               } elsif ($slot_status == $res->RESERVABLE_LATER) {
                   return &mt('Reservable, reservations open [_1]',
                              timeToHumanString($slot_time,'start'));
               } elsif ($slot_status == $res->NOT_IN_A_SLOT) {
                   return &mt('Reserve a time/place to work');
               } elsif ($slot_status == $res->NOTRESERVABLE) {
                   return &mt('Reservation not available');
               } elsif ($slot_status == $res->WAITING_FOR_GRADE) {
                   return &mt('Submission in grading queue');
               }
           }
       }
       if ($status == $res->OPEN) {
           if ($due) {
       if ($res->is_practice()) {
    return &mt("Closes [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'duedate',$part));
       } else {
    return &mt("Due [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'end'),$res->symb(),'duedate',$part));
       }
           } else {
               return &Apache::lonhtmlcommon::direct_parm_link(&mt("Open, no due date"),$res->symb(),'duedate',$part);
           }
       }
       if ($status == $res->PAST_DUE_ANSWER_LATER) {
           return &mt("Answer open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($answer,'start'),$res->symb(),'answerdate',$part));
       }
       if ($status == $res->PAST_DUE_NO_ANSWER) {
    if ($res->is_practice()) {
       return &mt("Closed [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'answerdate,duedate',$part));
    } else {
       return &mt("Was due [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'end'),$res->symb(),'answerdate,duedate',$part));
    }
       }
       if (($status == $res->ANSWER_OPEN || $status == $res->PARTIALLY_CORRECT)
    && $res->handgrade($part) ne 'yes') {
           return &Apache::lonhtmlcommon::direct_parm_link(&mt("Answer available"),$res->symb(),'answerdate,duedate',$part);
       }
       if ($status == $res->EXCUSED) {
           return &mt("Excused by instructor");
       }
       if ($status == $res->ATTEMPTED) {
           if ($res->is_anonsurvey($part) || $res->is_survey($part)) {
               return &mt("Survey submission recorded");
           } else {
               return &mt("Answer submitted, not yet graded");
           }
       }
       if ($status == $res->CREDIT_ATTEMPTED) {
           if ($res->is_anonsurvey($part) || $res->is_survey($part)) {
               return &mt("Credit for survey submission");
           }
       }
       if ($status == $res->TRIES_LEFT) {
           my $tries = $res->tries($part);
           my $maxtries = $res->maxtries($part);
           my $triesString = "";
           if ($tries && $maxtries) {
               $triesString = '<span class="LC_fontsize_medium"><i>('.&mt('[_1] of [quant,_2,try,tries] used',$tries,$maxtries).')</i></span>';
               if ($maxtries > 1 && $maxtries - $tries == 1) {
                   $triesString = "<b>$triesString</b>";
               }
           }
           if ($due) {
               return &mt("Due [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'end'),$res->symb(),'duedate',$part)) .
                   " $triesString";
           } else {
               return &Apache::lonhtmlcommon::direct_parm_link(&mt("No due date"),$res->symb(),'duedate',$part)." $triesString";
           }
       }
       if ($status == $res->ANSWER_SUBMITTED) {
           return &mt('Answer submitted');
       }
   }
   
   
   sub dueInLessThan24Hours {
       my $res = shift;
       my $part = shift;
       my $status = $res->status($part);
   
       return ($status == $res->OPEN() ||
               $status == $res->TRIES_LEFT()) &&
       $res->duedate($part) && $res->duedate($part) < time()+(24*60*60) &&
       $res->duedate($part) > time();
   }
   
   
   sub lastTry {
       my $res = shift;
       my $part = shift;
   
       my $tries = $res->tries($part);
       my $maxtries = $res->maxtries($part);
       return $tries && $maxtries && $maxtries > 1 &&
           $maxtries - $tries == 1 && $res->duedate($part) &&
           $res->duedate($part) > time();
   }
   
   
   sub advancedUser {
       return $env{'request.role.adv'};
   }
   
   sub timeToHumanString {
       my ($time,$type,$format) = @_;
   
       # zero, '0' and blank are bad times
       if (!$time) {
           return &mt('never');
       }
       unless (&Apache::lonlocal::current_language()=~/^en/) {
    return &Apache::lonlocal::locallocaltime($time);
       } 
       my $now = time();
   
       # Positive = future
       my $delta = $time - $now;
   
       my $minute = 60;
       my $hour = 60 * $minute;
       my $day = 24 * $hour;
       my $week = 7 * $day;
       my $inPast = 0;
   
       # Logic in comments:
       # Is it now? (extremely unlikely)
       if ( $delta == 0 ) {
           return "this instant";
       }
   
       if ($delta < 0) {
           $inPast = 1;
           $delta = -$delta;
       }
   
       if ( $delta > 0 ) {
   
           my $tense = $inPast ? " ago" : "";
           my $prefix = $inPast ? "" : "in ";
           
           # Less than a minute
           if ( $delta < $minute ) {
               if ($delta == 1) { return "${prefix}1 second$tense"; }
               return "$prefix$delta seconds$tense";
           }
   
           # Less than an hour
           if ( $delta < $hour ) {
               # If so, use minutes; or minutes, seconds (if format requires)
               my $minutes = floor($delta / 60);
               if (($format ne '') && ($format =~ /\%(T|S)/)) {
                   my $display;
                   if ($minutes == 1) {
                       $display = "${prefix}1 minute";
                   } else {
                       $display = "$prefix$minutes minutes";
                   }
                   my $seconds = $delta % $minute;
                   if ($seconds == 0) {
                       $display .= $tense;
                   } elsif ($seconds == 1) {
                       $display .= ", 1 second$tense";
                   } else {
                       $display .= ", $seconds seconds$tense";
                   }
                   return $display;
               }
               if ($minutes == 1) { return "${prefix}1 minute$tense"; }
               return "$prefix$minutes minutes$tense";
           }
           
           # Is it less than 24 hours away? If so,
           # display hours + minutes, (and + seconds, if format specified it)  
           if ( $delta < $hour * 24) {
               my $hours = floor($delta / $hour);
               my $minutes = floor(($delta % $hour) / $minute);
               my $hourString = "$hours hours";
               my $minuteString = ", $minutes minutes";
               if ($hours == 1) {
                   $hourString = "1 hour";
               }
               if ($minutes == 1) {
                   $minuteString = ", 1 minute";
               }
               if ($minutes == 0) {
                   $minuteString = "";
               }
               if (($format ne '') && ($format =~ /\%(T|S)/)) {
                   my $display = "$prefix$hourString$minuteString";
                   my $seconds = $delta-(($hours * $hour)+($minutes * $minute));
                   if ($seconds == 0) {
                       $display .= $tense;
                   } elsif ($seconds == 1) {
                       $display .= ", 1 second$tense";
                   } else {
                       $display .= ", $seconds seconds$tense";
                   }
                   return $display;
               }
               return "$prefix$hourString$minuteString$tense";
           }
   
           # Date/time is more than 24 hours away
   
    my $dt = DateTime->from_epoch(epoch => $time)
                    ->set_time_zone(&Apache::lonlocal::gettimezone());
   
    # If there's a caller supplied format, use it, unless it only displays
           # H:M:S or H:M.
   
    if (($format ne '') && ($format ne '%T') && ($format ne '%R')) {
       my $timeStr = $dt->strftime($format);
       return $timeStr.' ('.$dt->time_zone_short_name().')';
    }
   
           # Less than 5 days away, display day of the week and
           # HH:MM
   
           if ( $delta < $day * 5 ) {
               my $timeStr = $dt->strftime("%A, %b %e at %I:%M %P (%Z)");
               $timeStr =~ s/12:00 am/00:00/;
               $timeStr =~ s/12:00 pm/noon/;
               return ($inPast ? "last " : "this ") .
                   $timeStr;
           }
           
    my $conjunction='on';
    if ($type eq 'start') {
       $conjunction='at';
    } elsif ($type eq 'end') {
       $conjunction='by';
    }
           # Is it this year?
    my $dt_now = DateTime->from_epoch(epoch => $now)
                        ->set_time_zone(&Apache::lonlocal::gettimezone());
           if ( $dt->year() == $dt_now->year()) {
               # Return on Month Day, HH:MM meridian
               my $timeStr = $dt->strftime("$conjunction %A, %b %e at %I:%M %P (%Z)");
               $timeStr =~ s/12:00 am/00:00/;
               $timeStr =~ s/12:00 pm/noon/;
               return $timeStr;
           }
   
           # Not this year, so show the year
           my $timeStr = 
       $dt->strftime("$conjunction %A, %b %e %Y at %I:%M %P (%Z)");
           $timeStr =~ s/12:00 am/00:00/;
           $timeStr =~ s/12:00 pm/noon/;
           return $timeStr;
       }
   }
   
   
 sub resource { return 0; }  sub resource { return 0; }
 sub communication_status { return 1; }  sub communication_status { return 1; }
 sub quick_status { return 2; }  sub quick_status { return 2; }
Line 756  sub part_status_summary { return 4; } Line 903  sub part_status_summary { return 4; }
 sub render_resource {  sub render_resource {
     my ($resource, $part, $params) = @_;      my ($resource, $part, $params) = @_;
   
       my $editmapLink;
     my $nonLinkedText = ''; # stuff after resource title not in link      my $nonLinkedText = ''; # stuff after resource title not in link
   
     my $link = $params->{"resourceLink"};      my $link = $params->{"resourceLink"};
   
     #  The URL part is not escaped at this point, but the symb is...       #  The URL part is not escaped at this point, but the symb is... 
     #  The stuff to the left of the ? must have ' replaced by \' since  
     #  it will be quoted with ' in the href.  
   
     my ($left,$right) = split(/\?/, $link);  
     $link = $left.'?'.$right;  
   
     my $src = $resource->src();      my $src = $resource->src();
     my $it = $params->{"iterator"};      my $it = $params->{"iterator"};
Line 778  sub render_resource { Line 921  sub render_resource {
     my $location=&Apache::loncommon::lonhttpdurl("/adm/lonIcons");      my $location=&Apache::loncommon::lonhttpdurl("/adm/lonIcons");
     # If this is a new branch, label it so      # If this is a new branch, label it so
     if ($params->{'isNewBranch'}) {      if ($params->{'isNewBranch'}) {
         $newBranchText = "<img src='$location/branch.gif' border='0' alt='Branch' />";          $newBranchText = "<img src='$location/branch.gif' alt=".mt('Branch')." />";
     }      }
   
     # links to open and close the folder      # links to open and close the folder
   
           my $whitespace = $location.'/whitespace_21.gif';
     my $linkopen = "<a href=\"$link\">";      my $linkopen = "<img src='$whitespace' alt='' />"."<a href=\"$link\">";
   
   
     my $linkclose = "</a>";      my $linkclose = "</a>";
   
     # Default icon: unknown page      # Default icon: unknown page
     my $icon = "<img src='$location/unknown.gif' alt='' border='0' alt='&nbsp;&nbsp;' ' />";      my $icon = "<img class=\"LC_contentImage\" src='$location/unknown.gif' alt='' />";
           
     if ($resource->is_problem()) {      if ($resource->is_problem()) {
         if ($part eq '0' || $params->{'condensed'}) {          if ($part eq '0' || $params->{'condensed'}) {
     $icon = '<img src="'.$location.'/';      $icon = '<img class="LC_contentImage" src="'.$location.'/';
     if ($resource->is_task()) {      if ($resource->is_task()) {
  $icon .= 'task.gif" alt="'.&mt('Task');   $icon .= 'task.gif" alt="'.&mt('Task');
     } else {      } else {
  $icon .= 'problem.gif" alt="'.&mt('Problem');   $icon .= 'problem.gif" alt="'.&mt('Problem');
     }      }
     $icon .='" border="0" />';      $icon .='" />';
         } else {          } else {
             $icon = $params->{'indentString'};              $icon = $params->{'indentString'};
         }          }
     } else {      } else {
  $icon = "<img src='".&Apache::loncommon::icon($resource->src)."' alt='&nbsp;&nbsp;' border='0' />";   $icon = "<img class=\"LC_contentImage\" src='".&Apache::loncommon::icon($resource->src)."' alt='' />";
     }      }
   
     # Display the correct map icon to open or shut map      # Display the correct map icon to open or shut map
Line 815  sub render_resource { Line 956  sub render_resource {
         if ($it->{CONDITION}) {          if ($it->{CONDITION}) {
             $nowOpen = !$nowOpen;              $nowOpen = !$nowOpen;
         }          }
   
  my $folderType = $resource->is_sequence() ? 'folder' : 'page';   my $folderType = $resource->is_sequence() ? 'folder' : 'page';
         my $title=$resource->title;          my $title=$resource->title;
         $title=~s/\"/\&quot;/g;   $title=~s/\"/\&qout;/g;
         if (!$params->{'resource_no_folder_link'}) {          if (!$params->{'resource_no_folder_link'}) {
             $icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';              $icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';
     $icon = "<img src='$location/$icon' alt=\"".              $icon = "<img src='$location/arrow." . ($nowOpen ? 'closed' : 'open') . ".gif' alt='' />"
  ($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" border='0' />";                      ."<img class=\"LC_contentImage\" src='$location/$icon' alt=\""
                       .($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" />";
             $linkopen = "<a href=\"" . $params->{'url'} . '?' .               $linkopen = "<a href=\"" . $params->{'url'} . '?' . 
                 $params->{'queryString'} . '&amp;filter=';                  $params->{'queryString'} . '&amp;filter=';
             $linkopen .= ($nowOpen xor $it->{CONDITION}) ?              $linkopen .= ($nowOpen xor $it->{CONDITION}) ?
Line 838  sub render_resource { Line 979  sub render_resource {
   
         } else {          } else {
             # Don't allow users to manipulate folder              # Don't allow users to manipulate folder
             $icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') .              $icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';
                 '.nomanip.gif';              $icon = "<img class=\"LC_space\" src='$whitespace' alt='' />"."<img class=\"LC_contentImage\" src='$location/$icon' alt=\"".($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" />";
             $icon = "<img src='$location/$icon' alt=\"".  
  ($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" border='0' />";  
   
             $linkopen = "";              $linkopen = "";
             $linkclose = "";              $linkclose = "";
         }          }
           if ((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) &&
               ($resource->symb=~/\_\_\_[^\_]+\_\_\_uploaded/)) {
               if (!$params->{'map_no_edit_link'}) {
                   my $icon = &Apache::loncommon::lonhttpdurl('/res/adm/pages').'/editmap.png';
                   $editmapLink='&nbsp;'.
                            '<a href="/adm/coursedocs?command=directnav&amp;symb='.&escape($resource->symb()).'">'.
                            '<img src="'.$icon.'" alt="'.&mt('Edit Content').'" title="'.&mt('Edit Content').'" />'.
                            '</a>';
               }
           }
     }      }
   
     if ($resource->randomout()) {      if ($resource->randomout()) {
         $nonLinkedText .= ' <i>('.&mt('hidden').')</i> ';          $nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';
     }      }
     if (!$resource->condval()) {      if (!$resource->condval()) {
         $nonLinkedText .= ' <i>('.&mt('conditionally hidden').')</i> ';          $nonLinkedText .= ' <span class="LC_info">('.&mt('conditionally hidden').')</span> ';
     }      }
     if (($resource->is_practice()) && ($resource->is_raw_problem())) {      if (($resource->is_practice()) && ($resource->is_raw_problem())) {
         $nonLinkedText .=' <font color="green"><b>'.&mt('not graded').'</b></font>';          $nonLinkedText .=' <span class="LC_info"><b>'.&mt('not graded').'</b></span>';
     }      }
    
     # We're done preparing and finally ready to start the rendering  
     my $result = "<td align='left' valign='middle'>";  
   
       # We're done preparing and finally ready to start the rendering
       my $result = '<td class="LC_middle">';
       my $newfolderType = $resource->is_sequence() ? 'folder' : 'page';
   
     my $indentLevel = $params->{'indentLevel'};      my $indentLevel = $params->{'indentLevel'};
     if ($newBranchText) { $indentLevel--; }      if ($newBranchText) { $indentLevel--; }
   
Line 870  sub render_resource { Line 1020  sub render_resource {
     }      }
   
     # Decide what to display      # Decide what to display
   
     $result .= "$newBranchText$linkopen$icon$linkclose";      $result .= "$newBranchText$linkopen$icon$linkclose";
           
     my $curMarkerBegin = '';      my $curMarkerBegin = '';
Line 879  sub render_resource { Line 1028  sub render_resource {
     # Is this the current resource?      # Is this the current resource?
     if (!$params->{'displayedHereMarker'} &&       if (!$params->{'displayedHereMarker'} && 
         $resource->symb() eq $params->{'here'} ) {          $resource->symb() eq $params->{'here'} ) {
         $curMarkerBegin = '<font color="red" size="+2">&gt;</font>';          unless ($resource->is_map()) {
         $curMarkerEnd = '<font color="red" size="+2">&lt;</font>';              $curMarkerBegin = '<span class="LC_current_nav_location">';
         $params->{'displayedHereMarker'} = 1;              $curMarkerEnd = '</span>';
           }
    $params->{'displayedHereMarker'} = 1;
     }      }
   
     if ($resource->is_problem() && $part ne '0' &&       if ($resource->is_problem() && $part ne '0' && 
Line 896  sub render_resource { Line 1047  sub render_resource {
         $nonLinkedText .= ' ('.&mt('[_1] parts', $resource->countParts()).')';          $nonLinkedText .= ' ('.&mt('[_1] parts', $resource->countParts()).')';
     }      }
   
     my $target;  
     if ($env{'environment.remotenavmap'} eq 'on') {  
  $target=' target="loncapaclient" ';  
     }  
     if (!$params->{'resource_nolink'} && !$resource->is_sequence() && !$resource->is_empty_sequence) {      if (!$params->{'resource_nolink'} && !$resource->is_sequence() && !$resource->is_empty_sequence) {
         $result .= "  $curMarkerBegin<a $target href=\"$link\">$title$partLabel</a>$curMarkerEnd $nonLinkedText</td>";          $result .= "$curMarkerBegin<a href=\"$link\">$title$partLabel</a>$curMarkerEnd$editmapLink$nonLinkedText</td>";
     } else {      } else {
         $result .= "  $curMarkerBegin$title$partLabel$curMarkerEnd $nonLinkedText</td>";          $result .= "$curMarkerBegin$linkopen$title$partLabel</a>$curMarkerEnd$editmapLink$nonLinkedText</td>";
     }      }
   
     return $result;      return $result;
Line 914  sub render_communication_status { Line 1061  sub render_communication_status {
     my $discussionHTML = ""; my $feedbackHTML = ""; my $errorHTML = "";      my $discussionHTML = ""; my $feedbackHTML = ""; my $errorHTML = "";
   
     my $link = $params->{"resourceLink"};      my $link = $params->{"resourceLink"};
     my $target;      my $linkopen = "<a href=\"$link\">";
     if ($env{'environment.remotenavmap'} eq 'on') {  
  $target=' target="loncapaclient" ';  
     }  
     my $linkopen = "<a $target href=\"$link\">";  
     my $linkclose = "</a>";      my $linkclose = "</a>";
     my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");      my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");
   
     if ($resource->hasDiscussion()) {      if ($resource->hasDiscussion()) {
         $discussionHTML = $linkopen .          $discussionHTML = $linkopen .
             '<img alt="'.&mt('New Discussion').'" border="0" src="'.$location.'/chat.gif" />' .              '<img alt="'.&mt('New Discussion').'" src="'.$location.'/chat.gif" title="'.&mt('New Discussion').'"/>' .
             $linkclose;              $linkclose;
     }      }
           
Line 931  sub render_communication_status { Line 1075  sub render_communication_status {
         my $feedback = $resource->getFeedback();          my $feedback = $resource->getFeedback();
         foreach my $msgid (split(/\,/, $feedback)) {          foreach my $msgid (split(/\,/, $feedback)) {
             if ($msgid) {              if ($msgid) {
                 $feedbackHTML .= '&nbsp;<a '.$target.' href="/adm/email?display='                  $feedbackHTML .= '&nbsp;<a href="/adm/email?display='
                     . &escape($msgid) . '">'                      . &escape($msgid) . '">'
                     . '<img alt="'.&mt('New Email').'" src="'.$location.'/feedback.gif" '                      . '<img alt="'.&mt('New E-mail').'" src="'.$location.'/feedback.gif" title="'.&mt('New E-mail').'"/></a>';
                     . 'border="0" /></a>';  
             }              }
         }          }
     }      }
Line 946  sub render_communication_status { Line 1089  sub render_communication_status {
             last if ($errorcount>=10); # Only output 10 bombs maximum              last if ($errorcount>=10); # Only output 10 bombs maximum
             if ($msgid) {              if ($msgid) {
                 $errorcount++;                  $errorcount++;
                 $errorHTML .= '&nbsp;<a '.$target.' href="/adm/email?display='                  $errorHTML .= '&nbsp;<a href="/adm/email?display='
                     . &escape($msgid) . '">'                      . &escape($msgid) . '">'
                     . '<img alt="'.&mt('New Error').'" src="'.$location.'/bomb.gif" '                      . '<img alt="'.&mt('New Error').'" src="'.$location.'/bomb.gif" title="'.&mt('New Error').'"/></a>';
                     . 'border="0" /></a>';  
             }              }
         }          }
     }      }
Line 957  sub render_communication_status { Line 1099  sub render_communication_status {
     if ($params->{'multipart'} && $part != '0') {      if ($params->{'multipart'} && $part != '0') {
  $discussionHTML = $feedbackHTML = $errorHTML = '';   $discussionHTML = $feedbackHTML = $errorHTML = '';
     }      }
       return "<td class=\"LC_middle\">$discussionHTML$feedbackHTML$errorHTML&nbsp;</td>";
     return "<td width=\"75\" align=\"left\" valign=\"middle\">$discussionHTML$feedbackHTML$errorHTML&nbsp;</td>";  
   
 }  }
 sub render_quick_status {  sub render_quick_status {
Line 968  sub render_quick_status { Line 1109  sub render_quick_status {
         $params->{'multipart'} && $part eq "0";          $params->{'multipart'} && $part eq "0";
   
     my $link = $params->{"resourceLink"};      my $link = $params->{"resourceLink"};
     my $target;      my $linkopen = "<a href=\"$link\">";
     if ($env{'environment.remotenavmap'} eq 'on') {  
  $target=' target="loncapaclient" ';  
     }  
     my $linkopen = "<a $target href=\"$link\">";  
     my $linkclose = "</a>";      my $linkclose = "</a>";
   
    $result .= '<td class="LC_middle">';
     if ($resource->is_problem() &&      if ($resource->is_problem() &&
         !$firstDisplayed) {          !$firstDisplayed) {
   
         my $icon = $statusIconMap{$resource->simpleStatus($part)};          my $icon = $statusIconMap{$resource->simpleStatus($part)};
         my $alt = $iconAltTags{$icon};          my $alt = $iconAltTags{$icon};
         if ($icon) {          if ($icon) {
     my $location=      my $location=
  &Apache::loncommon::lonhttpdurl("/adm/lonIcons/$icon");   &Apache::loncommon::lonhttpdurl("/adm/lonIcons/$icon");
             $result .= "<td valign='middle' width='50' align='right'>$linkopen<img width='25' height='25' src='$location' border='0' alt='$alt' />$linkclose</td>\n";   $result .= $linkopen.'<img src="'.$location.'" alt="'.&mt($alt).'" title="'.&mt($alt).'" />'.$linkclose;            
         } else {          } else {
             $result .= "<td width='30'>&nbsp;</td>\n";              $result .= "&nbsp;";
         }          }
     } else { # not problem, no icon      } else { # not problem, no icon
         $result .= "<td width='30'>&nbsp;</td>\n";          $result .= "&nbsp;";
     }      }
    $result .= "</td>\n";
     return $result;      return $result;
 }  }
 sub render_long_status {  sub render_long_status {
     my ($resource, $part, $params) = @_;      my ($resource, $part, $params) = @_;
     my $result = "<td align='right' valign='middle'>\n";      my $result = '<td class="LC_middle LC_right">';
     my $firstDisplayed = !$params->{'condensed'} &&       my $firstDisplayed = !$params->{'condensed'} && 
         $params->{'multipart'} && $part eq "0";          $params->{'multipart'} && $part eq "0";
                                   
     my $color;      my $color;
       my $info = '';
     if ($resource->is_problem() || $resource->is_practice()) {      if ($resource->is_problem() || $resource->is_practice()) {
         $color = $colormap{$resource->status};          $color = $colormap{$resource->status};
                   
         if (dueInLessThan24Hours($resource, $part) ||          if (dueInLessThan24Hours($resource, $part) ||
             lastTry($resource, $part)) {              lastTry($resource, $part)) {
             $color = $hurryUpColor;              $color = $hurryUpColor;
               $info = ' title="'.&mt('Due in less than 24 hours!').'"';
         }          }
     }      }
           
     if ($resource->kind() eq "res" &&      if ($resource->kind() eq "res" &&
         ($resource->is_problem() || $resource->is_practice()) &&          $resource->is_raw_problem() &&
         !$firstDisplayed) {          !$firstDisplayed) {
         if ($color) {$result .= "<font color=\"$color\"><b>"; }          if ($color) {$result .= '<span style="color:'.$color.'"'.$info.'><b>'; }
         $result .= getDescription($resource, $part);          $result .= getDescription($resource, $part);
         if ($color) {$result .= "</b></font>"; }          if ($color) {$result .= "</b></span>"; }
     }      }
     if ($resource->is_map() && &advancedUser() && $resource->randompick()) {      if ($resource->is_map() && &advancedUser() && $resource->randompick()) {
         $result .= &mt('(randomly select [_1])', $resource->randompick());          $result .= &mt('(randomly select [_1])', $resource->randompick());
Line 1096  sub render_parts_summary_status { Line 1235  sub render_parts_summary_status {
     }      }
     $return.= $td . $totalParts . ' parts: ';      $return.= $td . $totalParts . ' parts: ';
     foreach my $status (@statuses) {      foreach my $status (@statuses) {
  if ($overallstatus{$status}) {          if ($overallstatus{$status}) {
     $return.="<font color='" . $statusColors{$status} .              $return.='<span style="color:' . $statusColors{$status}
  "'>" . $overallstatus{$status} . ' '                     . '">' . $overallstatus{$status} . ' '
  . $statusStrings{$status} . "</font>";                     . $statusStrings{$status} . '</span>';
  }          }
     }      }
     $return.= $endtd;      $return.= $endtd;
     return $return;      return $return;
Line 1299  sub render { Line 1438  sub render {
     my $printKey = $args->{'printKey'};      my $printKey = $args->{'printKey'};
     my $printCloseAll = $args->{'printCloseAll'};      my $printCloseAll = $args->{'printCloseAll'};
     if (!defined($printCloseAll)) { $printCloseAll = 1; }      if (!defined($printCloseAll)) { $printCloseAll = 1; }
      
     # Print key?      # Print key?
     if ($printKey) {      if ($printKey) {
         $result .= '<table border="0" cellpadding="2" cellspacing="0">';          $result .= '<table border="0" cellpadding="2" cellspacing="0">';
Line 1307  sub render { Line 1446  sub render {
  my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");   my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");
         if ($navmap->{LAST_CHECK}) {          if ($navmap->{LAST_CHECK}) {
             $result .=               $result .= 
                 '<img src="'.$location.'/chat.gif"> '.&mt('New discussion since').' '.                  '<img src="'.$location.'/chat.gif" alt="" /> '.&mt('New discussion since').' '.
                 strftime("%A, %b %e at %I:%M %P", localtime($navmap->{LAST_CHECK})).                  strftime("%A, %b %e at %I:%M %P", localtime($navmap->{LAST_CHECK})).
                 '</td><td align="center" valign="bottom">&nbsp;&nbsp;'.                  '</td><td align="center" valign="bottom">&nbsp;&nbsp;'.
                 '<img src="'.$location.'/feedback.gif"> '.&mt('New message (click to open)').'<p>'.                  '<img src="'.$location.'/feedback.gif" alt="" /> '.&mt('New message (click to open)').'<p>'.
                 '</td>';                   '</td>'; 
         } else {          } else {
             $result .= '<td align="center" valign="bottom">&nbsp;&nbsp;'.              $result .= '<td align="center" valign="bottom">&nbsp;&nbsp;'.
                 '<img src="'.$location.'/chat.gif"> '.&mt('Discussions').'</td><td align="center" valign="bottom">'.                  '<img src="'.$location.'/chat.gif" alt="" /> '.&mt('Discussions').'</td><td align="center" valign="bottom">'.
                 '&nbsp;&nbsp;<img src="'.$location.'/feedback.gif"> '.&mt('New message (click to open)').                  '&nbsp;&nbsp;<img src="'.$location.'/feedback.gif" alt="" /> '.&mt('New message (click to open)').
                 '</td>';                   '</td>'; 
         }          }
   
Line 1325  sub render { Line 1464  sub render {
     if ($printCloseAll && !$args->{'resource_no_folder_link'}) {      if ($printCloseAll && !$args->{'resource_no_folder_link'}) {
  my ($link,$text);   my ($link,$text);
         if ($condition) {          if ($condition) {
     $link='"navmaps?condition=0&amp;filter=&amp;'.$queryString.      $link='navmaps?condition=0&amp;filter=&amp;'.$queryString.
  '&here='.&escape($here).'"';   '&amp;here='.&escape($here);
     $text='Close all folders';      $text='Close all folders';
         } else {          } else {
     $link='"navmaps?condition=1&amp;filter=&amp;'.$queryString.      $link='navmaps?condition=1&amp;filter=&amp;'.$queryString.
  '&here='.&escape($here).'"';   '&amp;here='.&escape($here);
     $text='Open all folders';      $text='Open all folders';
         }          }
           if ($env{'form.register'}) {
               $link .= '&amp;register='.$env{'form.register'};
           }
  if ($args->{'caller'} eq 'navmapsdisplay') {   if ($args->{'caller'} eq 'navmapsdisplay') {
     &add_linkitem($args->{'linkitems'},'changefolder',              unless ($args->{'notools'}) {
   'location.href='.$link,$text);                  &add_linkitem($args->{'linkitems'},'changefolder',
                                 "location.href='$link'",$text);
               }
  } else {   } else {
     $result.='<a href='.$link.'>'.&mt($text).'</a>';      $result.= '<a href="'.$link.'">'.&mt($text).'</a>';
  }   }
         $result .= "\n";          $result .= "\n";
     }      }
   
     # Check for any unread discussions in all resources.      # Check for any unread discussions in all resources.
     if ($args->{'caller'} eq 'navmapsdisplay') {      if (($args->{'caller'} eq 'navmapsdisplay') && (!$args->{'notools'})) {
  &add_linkitem($args->{'linkitems'},'clearbubbles',   &add_linkitem($args->{'linkitems'},'clearbubbles',
       'document.clearbubbles.submit()',        'document.clearbubbles.submit()',
       'Mark all posts read');        'Mark all posts read');
  my $time=time;   my $time=time;
           my $querystr = &HTML::Entities::encode($ENV{'QUERY_STRING'},'<>&"');
  $result .= (<<END);   $result .= (<<END);
     <form name="clearbubbles" method="post" action="/adm/feedback">      <form name="clearbubbles" method="post" action="/adm/feedback">
  <input type="hidden" name="navurl" value="$ENV{'QUERY_STRING'}" />   <input type="hidden" name="navurl" value="$querystr" />
  <input type="hidden" name="navtime" value="$time" />   <input type="hidden" name="navtime" value="$time" />
 END  END
           if ($env{'form.register'}) {
               $result .= '<input type="hidden" name="register" value="'.$env{'form.register'}.'" />';
           }
         if ($args->{'sort'} eq 'discussion') {           if ($args->{'sort'} eq 'discussion') { 
     my $totdisc = 0;      my $totdisc = 0;
     my $haveDisc = '';      my $haveDisc = '';
Line 1373  END Line 1521  END
  }   }
  $result.='</form>';   $result.='</form>';
     }      }
       if (($args->{'caller'} eq 'navmapsdisplay') &&
           (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
           my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
           my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
           if ($env{'course.'.$env{'request.course.id'}.'.url'} eq 
               "uploaded/$cdom/$cnum/default.sequence") {
               &add_linkitem($args->{'linkitems'},'edittoplevel',
                             "javascript:gocmd('/adm/coursedocs','editdocs');",
                             'Content Editor');
           }
       }
   
     if ($args->{'caller'} eq 'navmapsdisplay') {      if ($args->{'caller'} eq 'navmapsdisplay') {
         $result .= '<table><tr><td>'.          $result .= &show_linkitems_toolbar($args,$condition);
                    &Apache::loncommon::help_open_menu('Navigation Screen','Navigation_Screen',undef,'RAT').'</td>';  
  if ($env{'environment.remotenavmap'} ne 'on') {  
     $result .= '<td>&nbsp;</td>';   
         } else {  
     $result .= '</tr><tr>';   
         }  
  $result.=&show_linkitems($args->{'linkitems'});  
         if ($args->{'sort_html'}) {  
     if ($env{'environment.remotenavmap'} ne 'on') {  
  $result.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>'.  
     '<td align="right">'.$args->{'sort_html'}.'</td></tr>';  
     } else {  
  $result.='</tr><tr><td align="left"><br />'.  
     $args->{'sort_html'}.'</td></tr>';  
     }  
  }  
         $result .= '</table>';  
     } elsif ($args->{'sort_html'}) {       } elsif ($args->{'sort_html'}) { 
         $result.=$args->{'sort_html'};           $result.=$args->{'sort_html'}; 
     }      }
   
     $result .= "<br />\n";      #$result .= "<br />\n";
     if ($r) {      if ($r) {
         $r->print($result);          $r->print($result);
         $r->rflush();          $r->rflush();
         $result = "";          $result = "";
     }      }
     # End parameter setting      # End parameter setting
                   
       $result .= "<br />\n";
   
     # Data      # Data
     $result .= '<table cellspacing="0" cellpadding="3" border="0" bgcolor="#FFFFFF">' ."\n";      $result.=&Apache::loncommon::start_data_table("LC_tableOfContent");    
   
     my $res = "Apache::lonnavmaps::resource";      my $res = "Apache::lonnavmaps::resource";
     my %condenseStatuses =      my %condenseStatuses =
         ( $res->NETWORK_FAILURE    => 1,          ( $res->NETWORK_FAILURE    => 1,
           $res->NOTHING_SET        => 1,            $res->NOTHING_SET        => 1,
           $res->CORRECT            => 1 );            $res->CORRECT            => 1 );
     my @backgroundColors = ("#FFFFFF", "#F6F6F6");  
   
     # Shared variables      # Shared variables
     $args->{'counter'} = 0; # counts the rows      $args->{'counter'} = 0; # counts the rows
     $args->{'indentLevel'} = 0;      $args->{'indentLevel'} = 0;
     $args->{'isNewBranch'} = 0;      $args->{'isNewBranch'} = 0;
     $args->{'condensed'} = 0;          $args->{'condensed'} = 0;   
     my $location=  
  &Apache::loncommon::lonhttpdurl("/adm/lonIcons/whitespace1.gif");      my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons/whitespace_21.gif");
     $args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='$location' width='25' height='1' alt='&nbsp;&nbsp;' border='0' />");      $args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='$location' alt='' />");
     $args->{'displayedHereMarker'} = 0;      $args->{'displayedHereMarker'} = 0;
   
     # If we're suppressing empty sequences, look for them here. Use DFS for speed,      # If we're suppressing empty sequences, look for them here. Use DFS for speed,
Line 1640  END Line 1784  END
     if (defined($anchor)) { $anchor='#'.$anchor; }      if (defined($anchor)) { $anchor='#'.$anchor; }
     my $srcHasQuestion = $src =~ /\?/;      my $srcHasQuestion = $src =~ /\?/;
     $args->{"resourceLink"} = $src.      $args->{"resourceLink"} = $src.
  ($srcHasQuestion?'&':'?') .   ($srcHasQuestion?'&amp;':'?') .
  'symb=' . &escape($symb).$anchor;   'symb=' . &escape($symb).$anchor;
  }   }
         # Now, we've decided what parts to show. Loop through them and          # Now, we've decided what parts to show. Loop through them and
         # show them.          # show them.
         foreach my $part (@parts) {          foreach my $part (@parts) {
             $rownum ++;              $rownum ++;
             my $backgroundColor = $backgroundColors[$rownum % scalar(@backgroundColors)];  
                           
             $result .= "  <tr bgcolor='$backgroundColor'>\n";              $result .= &Apache::loncommon::start_data_table_row();
   
             # Set up some data about the parts that the cols might want              # Set up some data about the parts that the cols might want
             my $filter = $it->{FILTER};              my $filter = $it->{FILTER};
Line 1675  END Line 1818  END
                 }                  }
                 $result .= $colHTML . "\n";                  $result .= $colHTML . "\n";
             }              }
             $result .= "    </tr>\n";              $result .= &Apache::loncommon::end_data_table_row();
             $args->{'isNewBranch'} = 0;              $args->{'isNewBranch'} = 0;
         }          }
   
Line 1694  END Line 1837  END
     }      }
  }   }
     }      }
   
       $result.=&Apache::loncommon::end_data_table();
           
     # Print out the part that jumps to #curloc if it exists      # Print out the part that jumps to #curloc if it exists
     # delay needed because the browser is processing the jump before      # delay needed because the browser is processing the jump before
Line 1703  END Line 1848  END
     # it's quite likely this might fix other browsers, too, and       # it's quite likely this might fix other browsers, too, and 
     # certainly won't hurt anything.      # certainly won't hurt anything.
     if ($displayedJumpMarker) {      if ($displayedJumpMarker) {
         $result .= "          $result .= &Apache::lonhtmlcommon::scripttag("
 <script>  
 if (location.href.indexOf('#curloc')==-1) {  if (location.href.indexOf('#curloc')==-1) {
     setTimeout(\"location += '#curloc';\", 0)      setTimeout(\"location += '#curloc';\", 0)
 }  }
 </script>";  ");
     }      }
   
     $result .= "</table>";  
       
     if ($r) {      if ($r) {
         $r->print($result);          $r->print($result);
         $result = "";          $result = "";
Line 1728  sub add_linkitem { Line 1870  sub add_linkitem {
     $$linkitems{$name}{'text'}=&mt($text);      $$linkitems{$name}{'text'}=&mt($text);
 }  }
   
 sub show_linkitems {  sub show_linkitems_toolbar {
     my ($linkitems)=@_;      my ($args,$condition) = @_;
     my @linkorder = ("blank","launchnav","closenav","firsthomework",      my $result;
      "everything","uncompleted","changefolder","clearbubbles");      if (ref($args) eq 'HASH') {
               if (ref($args->{'linkitems'}) eq 'HASH') {
     my $result .= (<<ENDBLOCK);              my $numlinks = scalar(keys(%{$args->{'linkitems'}}));
               <td align="left">              if ($numlinks > 1) {
 <script type="text/javascript">                  $result = '<td>'.
     function changeNavDisplay () {                            &Apache::loncommon::help_open_menu('Navigation Screen','Navigation_Screen',
  var navchoice = document.linkitems.toplink[document.linkitems.toplink.selectedIndex].value;                                                               undef,'RAT').
 ENDBLOCK                            '</td>'.
     foreach my $link (@linkorder) {                            '<td>&nbsp;</td>'.
  $result.= "if (navchoice == '$link') {".                            '<td class="LC_middle">'.&mt('Tools:').'</td>';
     $linkitems->{$link}{'cmd'}."}\n";              }
     }              $result .= '<td align="left">'."\n".
     $result.='}                         '<ul id="LC_toolbar">';
               </script>              my @linkorder = ('firsthomework','everything','uncompleted',
                    <form name="linkitems" method="post">                               'changefolder','clearbubbles','edittoplevel');
                        <span class="LC_nobreak"><select name="toplink">'."\n";              foreach my $link (@linkorder) {
     foreach my $link (@linkorder) {                  if (ref($args->{'linkitems'}{$link}) eq 'HASH') {
  if (defined($linkitems->{$link})) {                      if ($args->{'linkitems'}{$link}{'text'} ne '') {
     if ($linkitems->{$link}{'text'} ne '') {                          $args->{'linkitems'}{$link}{'cmd'}=~s/"/'/g;
  $result .= ' <option value="'.$link.'">'.                          if ($args->{'linkitems'}{$link}{'cmd'}) {
     $linkitems->{$link}{'text'}."</option>\n";                              my $link_id = 'LC_content_toolbar_'.$link;
     }                              if ($link eq 'changefolder') {
  }                                  if ($condition) {
                                       $link_id='LC_content_toolbar_changefolder_toggled';
                                   } else {
                                       $link_id='LC_content_toolbar_changefolder';
                                   }
                               }
                               $result .= '<li><a href="#" '.
                                          'onclick="'.$args->{'linkitems'}{$link}{'cmd'}.'" '.
                                          'id="'.$link_id.'" '.
                                          'class="LC_toolbarItem" '.
                                          'title="'.$args->{'linkitems'}{$link}{'text'}.'">'.
                                          '</a></li>'."\n";
                           }
                       }
                   }
               }
               $result .= '</ul>'.
                          '</td>';
               if (($numlinks==1) && (exists($args->{'linkitems'}{'edittoplevel'}))) {
                   $result .= '<td><a href="'.$args->{'linkitems'}{'edittoplevel'}{'cmd'}.'">'.
                              &mt('Content Editor').'</a></td>';
               }
           }
           if ($args->{'sort_html'}) {
               $result .= '<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>'.
                          '<td align="right">'.$args->{'sort_html'}.'</td>';
           }
       }
       if ($result) {
           $result = "<table><tr>$result</tr></table>";
     }      }
     $result .= '</select>&nbsp;<input type="button" name="chgnav"  
                    value="Go" onClick="javascript:changeNavDisplay()" />  
                 </span></form></td>'."\n";  
   
     return $result;      return $result;
 }  }
   
 1;  1;
   
   
   
   
   
   
   
   
   
 package Apache::lonnavmaps::navmap;  package Apache::lonnavmaps::navmap;
   
 =pod  =pod
Line 1840  sub new { Line 2015  sub new {
     my $proto = shift;      my $proto = shift;
     my $class = ref($proto) || $proto;      my $class = ref($proto) || $proto;
     my $self = {};      my $self = {};
       bless($self); # So we can call change_user if neceesary
   
       $self->{USERNAME} = shift || $env{'user.name'};
       $self->{DOMAIN}   = shift || $env{'user.domain'};
       $self->{CODE}     = shift;
   
   
   
     # Resource cache stores navmap resources as we reference them. We generate      # Resource cache stores navmap resources as we reference them. We generate
     # them on-demand so we don't pay for creating resources unless we use them.      # them on-demand so we don't pay for creating resources unless we use them.
Line 1849  sub new { Line 2031  sub new {
     # failed      # failed
     $self->{NETWORK_FAILURE} = 0;      $self->{NETWORK_FAILURE} = 0;
   
     # tie the nav hash      # We can only tie the nav hash as done below if the username/domain
       # match the env one. Otherwise change_user does everything we need...since we can't
       # assume there are course hashes for the specific requested user@domamin:
       #
   
     my %navmaphash;      if (($self->{USERNAME} eq $env{'user.name'}) && ($self->{DOMAIN} eq $env{'user.domain'}) && !$self->{CODE}) {
     my %parmhash;  
     my $courseFn = $env{"request.course.fn"};   # tie the nav hash
     if (!(tie(%navmaphash, 'GDBM_File', "${courseFn}.db",  
               &GDBM_READER(), 0640))) {   my %navmaphash;
         return undef;   my %parmhash;
    my $courseFn = $env{"request.course.fn"};
    if (!(tie(%navmaphash, 'GDBM_File', "${courseFn}.db",
     &GDBM_READER(), 0640))) {
       return undef;
    }
   
    if (!(tie(%parmhash, 'GDBM_File', "${courseFn}_parms.db",
     &GDBM_READER(), 0640)))
    {
       untie %{$self->{PARM_HASH}};
       return undef;
    }
   
    $self->{NAV_HASH} = \%navmaphash;
    $self->{PARM_HASH} = \%parmhash;
    $self->{PARM_CACHE} = {};
       } else {
    $self->change_user($self->{USERNAME}, $self->{DOMAIN},  $self->{CODE});
     }      }
   
       return $self;
   }
   
   #
   #  In some instances it is useful to be able to dynamically change the
   # username/domain associated with a navmap (e.g. to navigate for someone
   # else besides the current user...if sufficiently privileged.
   # Parameters:
   #    user  - New user.
   #    domain- Domain the user belongs to.
   #    code  - Anonymous CODE in use.
   # Implicit inputs:
   #   
   sub change_user {
       my $self = shift;
       $self->{USERNAME} = shift;
       $self->{DOMAIN}   = shift;
       $self->{CODE}     = shift;
   
       # If the hashes are already tied make sure to break that bond:
   
       untie %{$self->{NAV_HASH}}; 
       untie %{$self->{PARM_HASH}};
   
       # The assumption is that we have to
       # use lonmap here to re-read the hash and from it reconstruct
       # new big and parameter hashes.  An implicit assumption at this time
       # is that the course file is probably not created locally yet
       # an that we will therefore just read without tying.
   
       my ($cdom, $cnum) = split(/\_/, $env{'request.course.id'});
   
       my %big_hash;
       &Apache::lonmap::loadmap($cnum, $cdom, $self->{USERNAME}, $self->{DOMAIN}, $self->{CODE}, \%big_hash);
       $self->{NAV_HASH} = \%big_hash;
   
   
   
       # Now clear the parm cache and reconstruct the parm hash fromt he big_hash
       # param.xxxx keys.
   
       $self->{PARM_CACHE} = {};
           
     if (!(tie(%parmhash, 'GDBM_File', "${courseFn}_parms.db",      my %parm_hash = {};
               &GDBM_READER(), 0640)))      foreach my $key (keys %big_hash) {
     {   if ($key =~ /^param\./) {
         untie %{$self->{PARM_HASH}};      my $param_key = $key;
         return undef;      $param_key =~ s/^param\.//;
       $parm_hash{$param_key} = $big_hash{$key};
    }
     }      }
   
     $self->{NAV_HASH} = \%navmaphash;      $self->{PARM_HASH} = \%parm_hash;
     $self->{PARM_HASH} = \%parmhash;  
     $self->{PARM_CACHE} = {};  
   
     bless($self);  
               
     return $self;  } 
 }  
   
 sub generate_course_user_opt {  sub generate_course_user_opt {
     my $self = shift;      my $self = shift;
     if ($self->{COURSE_USER_OPT_GENERATED}) { return; }      if ($self->{COURSE_USER_OPT_GENERATED}) { return; }
   
     my $uname=$env{'user.name'};      my $uname=$self->{USERNAME};
     my $udom=$env{'user.domain'};      my $udom=$self->{DOMAIN};
   
     my $cid=$env{'request.course.id'};      my $cid=$env{'request.course.id'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
Line 1914  sub generate_course_user_opt { Line 2160  sub generate_course_user_opt {
     return;      return;
 }  }
   
   
   
 sub generate_email_discuss_status {  sub generate_email_discuss_status {
     my $self = shift;      my $self = shift;
     my $symb = shift;      my $symb = shift;
Line 1923  sub generate_email_discuss_status { Line 2171  sub generate_email_discuss_status {
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
           
     my %emailstatus = &Apache::lonnet::dump('email_status');      my %emailstatus = &Apache::lonnet::dump('email_status',$self->{DOMAIN},$self->{USERNAME});
     my $logoutTime = $emailstatus{'logout'};      my $logoutTime = $emailstatus{'logout'};
     my $courseLeaveTime = $emailstatus{'logout_'.$env{'request.course.id'}};      my $courseLeaveTime = $emailstatus{'logout_'.$env{'request.course.id'}};
     $self->{LAST_CHECK} = (($courseLeaveTime > $logoutTime) ?      $self->{LAST_CHECK} = (($courseLeaveTime > $logoutTime) ?
Line 1931  sub generate_email_discuss_status { Line 2179  sub generate_email_discuss_status {
     my %discussiontime = &Apache::lonnet::dump('discussiontimes',       my %discussiontime = &Apache::lonnet::dump('discussiontimes', 
        $cdom, $cnum);         $cdom, $cnum);
     my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',      my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',
                                         $env{'user.domain'},$env{'user.name'},'lastread');                                          $self->{DOMAIN},$self->{USERNAME},'lastread');
     my %lastreadtime = ();      my %lastreadtime = ();
     foreach my $key (keys %lastread) {      foreach my $key (keys %lastread) {
         my $shortkey = $key;          my $shortkey = $key;
Line 1941  sub generate_email_discuss_status { Line 2189  sub generate_email_discuss_status {
   
     my %feedback=();      my %feedback=();
     my %error=();      my %error=();
     my @keys = &Apache::lonnet::getkeys('nohist_email',$env{'user.domain'},      my @keys = &Apache::lonnet::getkeys('nohist_email',$self->{DOMAIN},
  $env{'user.name'});   $self->{USERNAME});
           
     foreach my $msgid (@keys) {      foreach my $msgid (@keys) {
  if ((!$emailstatus{$msgid}) || ($emailstatus{$msgid} eq 'new')) {   if ((!$emailstatus{$msgid}) || ($emailstatus{$msgid} eq 'new')) {
Line 1990  sub get_user_data { Line 2238  sub get_user_data {
   
     # Retrieve performance data on problems      # Retrieve performance data on problems
     my %student_data = Apache::lonnet::currentdump($env{'request.course.id'},      my %student_data = Apache::lonnet::currentdump($env{'request.course.id'},
    $env{'user.domain'},     $self->{DOMAIN},
    $env{'user.name'});     $self->{USERNAME});
     $self->{STUDENT_DATA} = \%student_data;      $self->{STUDENT_DATA} = \%student_data;
   
     $self->{RETRIEVED_USER_DATA} = 1;      $self->{RETRIEVED_USER_DATA} = 1;
Line 2220  resource object. Line 2468  resource object.
 Based on the symb of the resource, get a resource object for that  Based on the symb of the resource, get a resource object for that
 resource. This is one of the proper ways to get a resource object.  resource. This is one of the proper ways to get a resource object.
   
 =item * B<getMapByMapPc>(map_pc):  =item * B<getByMapPc>(map_pc):
   
 Based on the map_pc of the resource, get a resource object for  Based on the map_pc of the resource, get a resource object for
 the given map. This is one of the proper ways to get a resource object.  the given map. This is one of the proper ways to get a resource object.
Line 2305  sub parmval { Line 2553  sub parmval {
     my $self = shift;      my $self = shift;
     my ($what,$symb,$recurse)=@_;      my ($what,$symb,$recurse)=@_;
     my $hashkey = $what."|||".$symb;      my $hashkey = $what."|||".$symb;
       my $cache = $self->{PARM_CACHE};
     if (defined($self->{PARM_CACHE}->{$hashkey})) {      if (defined($self->{PARM_CACHE}->{$hashkey})) {
         if (ref($self->{PARM_CACHE}->{$hashkey}) eq 'ARRAY') {           if (ref($self->{PARM_CACHE}->{$hashkey}) eq 'ARRAY') { 
             if (defined($self->{PARM_CACHE}->{$hashkey}->[0])) {              if (defined($self->{PARM_CACHE}->{$hashkey}->[0])) {
Line 2327  sub parmval { Line 2575  sub parmval {
     return $result->[0];      return $result->[0];
 }  }
   
   
 sub parmval_real {  sub parmval_real {
     my $self = shift;      my $self = shift;
     my ($what,$symb,$recurse) = @_;      my ($what,$symb,$recurse) = @_;
   
   
     # Make sure the {USER_OPT} and {COURSE_OPT} hashes are populated      # Make sure the {USER_OPT} and {COURSE_OPT} hashes are populated
     $self->generate_course_user_opt();      $self->generate_course_user_opt();
   
Line 2342  sub parmval_real { Line 2592  sub parmval_real {
         @cgrps = sort(@cgrps);          @cgrps = sort(@cgrps);
         $cgroup = $cgrps[0];          $cgroup = $cgrps[0];
     }       } 
     my $uname=$env{'user.name'};      my $uname=$self->{USERNAME};
     my $udom=$env{'user.domain'};      my $udom=$self->{DOMAIN};
   
     unless ($symb) { return ['']; }      unless ($symb) { return ['']; }
     my $result='';      my $result='';
Line 2359  sub parmval_real { Line 2609  sub parmval_real {
     my $mapparm=$mapname.'___(all).'.$what;      my $mapparm=$mapname.'___(all).'.$what;
     my $usercourseprefix=$cid;      my $usercourseprefix=$cid;
   
   
   
     my $grplevel=$usercourseprefix.'.['.$cgroup.'].'.$what;      my $grplevel=$usercourseprefix.'.['.$cgroup.'].'.$what;
     my $grplevelr=$usercourseprefix.'.['.$cgroup.'].'.$symbparm;      my $grplevelr=$usercourseprefix.'.['.$cgroup.'].'.$symbparm;
     my $grplevelm=$usercourseprefix.'.['.$cgroup.'].'.$mapparm;      my $grplevelm=$usercourseprefix.'.['.$cgroup.'].'.$mapparm;
   
   
     my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;      my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
     my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;      my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
     my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;      my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;
   
   
     my $courselevel= $usercourseprefix.'.'.$what;      my $courselevel= $usercourseprefix.'.'.$what;
     my $courselevelr=$usercourseprefix.'.'.$symbparm;      my $courselevelr=$usercourseprefix.'.'.$symbparm;
     my $courselevelm=$usercourseprefix.'.'.$mapparm;      my $courselevelm=$usercourseprefix.'.'.$mapparm;
   
   
     my $useropt = $self->{USER_OPT};      my $useropt = $self->{USER_OPT};
     my $courseopt = $self->{COURSE_OPT};      my $courseopt = $self->{COURSE_OPT};
     my $parmhash = $self->{PARM_HASH};      my $parmhash = $self->{PARM_HASH};
Line 2437  sub parmval_real { Line 2692  sub parmval_real {
     if (defined($pack_def)) { return [$pack_def,'resource']; }      if (defined($pack_def)) { return [$pack_def,'resource']; }
     return [''];      return [''];
 }  }
   #
   #  Determines the open/close dates for printing a map that
   #  encloses a resource.
   #
   sub map_printdates {
       my ($self, $res, $part) = @_;
   
   
   
   
   
       my $opendate = $self->get_mapparam($res->symb(), "$part.printstartdate");
       my $closedate= $self->get_mapparam($res->symb(), "$part.printenddate");
   
   
       return ($opendate, $closedate);
   }
   
   sub get_mapparam {
       my ($self, $symb, $what) = @_;
   
       # Ensure the course option hash is populated:
   
       $self->generate_course_user_opt();
   
       # Get the course id and section if there is one.
   
       my $cid=$env{'request.course.id'};
       my $csec=$env{'request.course.sec'};
       my $cgroup='';
       my @cgrps=split(/:/,$env{'request.course.groups'});
       if (@cgrps > 0) {
           @cgrps = sort(@cgrps);
           $cgroup = $cgrps[0];
       } 
       my $uname=$self->{USERNAME};
       my $udom=$self->{DOMAIN};
   
       unless ($symb) { return ['']; }
       my $result='';
   
   
       # Figure out which map we are in.
   
       my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
       $mapname = &Apache::lonnet::deversion($mapname);
   
   
       my $rwhat=$what;
       $what=~s/^parameter\_//;
       $what=~s/\_/\./;
   
       # Build the hash keys for the lookup:
   
       my $symbparm=$symb.'.'.$what;
       my $mapparm=$mapname.'___(all).'.$what;
       my $usercourseprefix=$cid;
   
   
       my $grplevel    = "$usercourseprefix.[$cgroup].$mapparm";
       my $seclevel    = "$usercourseprefix.[$csec].$mapparm";
       my $courselevel = "$usercourseprefix.$mapparm";
   
   
       # Get handy references to the hashes we need in $self:
   
       my $useropt = $self->{USER_OPT};
       my $courseopt = $self->{COURSE_OPT};
       my $parmhash = $self->{PARM_HASH};
   
       # Check per user 
   
   
   
       if ($uname and defined($useropt)) {
    if (defined($$useropt{$courselevel})) {
       return $$useropt{$courselevel};
    }
       }
   
       # Check course -- group
   
   
   
       if ($cgroup ne '' and defined ($courseopt)) {
    if (defined($$courseopt{$grplevel})) {
       return $$courseopt{$grplevel};
    }
       }
   
       # Check course -- section
   
   
   
   
   
       if ($csec and defined($courseopt)) {
    if (defined($$courseopt{$seclevel})) {
       return $$courseopt{$seclevel};
    }
       }
       # Check the map parameters themselves:
   
       my $thisparm = $$parmhash{$symbparm};
       if (defined($thisparm)) {
    return $thisparm;
       }
   
   
       # Additional course parameters:
   
       if (defined($courseopt)) {
    if (defined($$courseopt{$courselevel})) {
       return $$courseopt{$courselevel};
    }
       }
       return undef; # Unefined if we got here.
   }
   
   sub course_printdates {
       my ($self, $symb,  $part) = @_;
   
   
       my $opendate  = $self->getcourseparam($symb, $part . '.printstartdate');
       my $closedate = $self->getcourseparam($symb, $part . '.printenddate');
       return ($opendate, $closedate);
   
   }
   
   sub getcourseparam {
       my ($self, $symb, $what) = @_;
   
       $self->generate_course_user_opt(); # If necessary populate the hashes.
   
       my $uname = $self->{USERNAME};
       my $udom  = $self->{DOMAIN};
       
       # Course, section, group ids come from the env:
   
       my $cid   = $env{'request.course.id'};
       my $csec  = $env{'request.course.sec'};
       my $cgroup = ''; # Assume no group
   
       my @cgroups = split(/:/, $env{'request.course.groups'});
       if(@cgroups > 0) {
    @cgroups = sort(@cgroups);
    $cgroup  = $cgroups[0]; # There is a course group. 
      }
       my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
       $mapname = &Apache::lonnet::deversion($mapname);
   
       #
       # Make the various lookup keys:
       #
   
       $what=~s/^parameter\_//;
       $what=~s/\_/\./;
   
   
       my $symbparm = $symb . '.' . $what;
       my $mapparm=$mapname.'___(all).'.$what;
   
       # Local refs to the hashes we're going to look at:
   
       my $useropt   = $self->{USER_OPT};
       my $courseopt = $self->{COURSE_OPT};
   
       # 
       # We want the course level stuff from the way
       # parmval_real operates 
       # TODO: Fator some of this stuff out of
       # both parmval_real and here
       #
       my $courselevel = $cid . '.' .  $what;
       my $grplevel    = $cid . '.[' . $cgroup   . ']' . $what;
       my $seclevel    = $cid . '.[' . $csec     . ']' . $what;
   
   
       # Try for the user's course level option:
   
       if ($uname and defined($useropt)) {
    if (defined($$useropt{$courselevel})) {
       return $$useropt{$courselevel};
    }
       }
       # Try for the group's course level option:
   
       if ($uname ne '' and defined($courseopt)) {
    if (defined($$courseopt{$grplevel})) {
       return $$courseopt{$grplevel};
    }
       }
   
       #  Try for section level parameters:
   
       if ($csec and defined($courseopt)) {
    if (defined($$courseopt{$seclevel})) {
       return $$courseopt{$seclevel};
    }
       }
       # Try for 'additional' course parameterse:
   
       if (defined($courseopt)) {
    if (defined($$courseopt{$courselevel})) {
       return $$courseopt{$courselevel};
    }
       }
       return undef;
   
   }
   
   
 =pod  =pod
   
Line 2490  in the filter function. Line 2956  in the filter function.
 Retrieves version infomation for a url. Returns the version (a number, or   Retrieves version infomation for a url. Returns the version (a number, or 
 the string "mostrecent") for resources which have version information in    the string "mostrecent") for resources which have version information in  
 the big hash.  the big hash.
       
 =cut  =cut
   
   
Line 2745  sub new { Line 3211  sub new {
     weaken($self->{NAV_MAP} = shift);      weaken($self->{NAV_MAP} = shift);
     return undef unless ($self->{NAV_MAP});      return undef unless ($self->{NAV_MAP});
   
       $self->{USERNAME} = $self->{NAV_MAP}->{USERNAME};
       $self->{DOMAIN}   = $self->{NAV_MAP}->{DOMAIN};
   
     # Handle the parameters      # Handle the parameters
     $self->{FIRST_RESOURCE} = shift || $self->{NAV_MAP}->firstResource();      $self->{FIRST_RESOURCE} = shift || $self->{NAV_MAP}->firstResource();
     $self->{FINISH_RESOURCE} = shift || $self->{NAV_MAP}->finishResource();      $self->{FINISH_RESOURCE} = shift || $self->{NAV_MAP}->finishResource();
Line 2858  sub new { Line 3327  sub new {
     if ($resourceCount == 1 && $resource->is_sequence() && !$self->{FORCE_TOP}) {       if ($resourceCount == 1 && $resource->is_sequence() && !$self->{FORCE_TOP}) { 
         my $firstResource = $resource->map_start();          my $firstResource = $resource->map_start();
         my $finishResource = $resource->map_finish();          my $finishResource = $resource->map_finish();
         return    my $result;
             Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,   $result =  Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,
                                               $finishResource, $self->{FILTER},       $finishResource, $self->{FILTER},
                                               $self->{ALREADY_SEEN},        $self->{ALREADY_SEEN}, 
                                               $self->{CONDITION},       $self->{CONDITION},
       $self->{FORCE_TOP});       $self->{FORCE_TOP});
    return $result;
              
                   
     }      }
   
Line 2883  sub new { Line 3354  sub new {
     $self->{ALREADY_SEEN}->{$self->{FIRST_RESOURCE}->{ID}} = 1;      $self->{ALREADY_SEEN}->{$self->{FIRST_RESOURCE}->{ID}} = 1;
   
     bless ($self);      bless ($self);
   
     return $self;      return $self;
 }  }
   
Line 2898  sub next { Line 3368  sub next {
     # do so.      # do so.
     if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0}) {      if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0}) {
         $self->{HAVE_RETURNED_0} = 1;          $self->{HAVE_RETURNED_0} = 1;
    my $nextTopLevel = $self->{NAV_MAP}->getById('0.0');
         return $self->{NAV_MAP}->getById('0.0');          return $self->{NAV_MAP}->getById('0.0');
     }      }
     if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0_BEGIN_MAP}) {      if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0_BEGIN_MAP}) {
Line 2917  sub next { Line 3388  sub next {
         if ($self->{RECURSIVE_DEPTH} == 0) {          if ($self->{RECURSIVE_DEPTH} == 0) {
             $self->{RECURSIVE_ITERATOR_FLAG} = 0;              $self->{RECURSIVE_ITERATOR_FLAG} = 0;
         }          }
   
         return $next;          return $next;
     }      }
   
Line 2993  sub next { Line 3463  sub next {
     # So we need to look at all the resources we can get to from here,      # So we need to look at all the resources we can get to from here,
     # categorize them if we haven't seen them, remember if we have a new      # categorize them if we haven't seen them, remember if we have a new
     my $nextUnfiltered = $here->getNext();      my $nextUnfiltered = $here->getNext();
   
   
     my $maxDepthAdded = -1;      my $maxDepthAdded = -1;
           
     for (@$nextUnfiltered) {      for (@$nextUnfiltered) {
Line 3026  sub next { Line 3498  sub next {
         $self->{RECURSIVE_ITERATOR_FLAG} = 1;          $self->{RECURSIVE_ITERATOR_FLAG} = 1;
         my $firstResource = $self->{HERE}->map_start();          my $firstResource = $self->{HERE}->map_start();
         my $finishResource = $self->{HERE}->map_finish();          my $finishResource = $self->{HERE}->map_finish();
   
         $self->{RECURSIVE_ITERATOR} =           $self->{RECURSIVE_ITERATOR} = 
             Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,              Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,
                                               $finishResource, $self->{FILTER},                                                $finishResource, $self->{FILTER},
Line 3118  sub new { Line 3589  sub new {
     weaken($self->{NAV_MAP} = shift);      weaken($self->{NAV_MAP} = shift);
     return undef unless ($self->{NAV_MAP});      return undef unless ($self->{NAV_MAP});
   
       $self->{USERNAME} = $self->{NAV_MAP}->{USERNAME};
       $self->{DOMAIN}   = $self->{NAV_MAP}->{DOMAIN};
   
     $self->{FIRST_RESOURCE} = shift || $self->{NAV_MAP}->firstResource();      $self->{FIRST_RESOURCE} = shift || $self->{NAV_MAP}->firstResource();
     $self->{FINISH_RESOURCE} = shift || $self->{NAV_MAP}->finishResource();      $self->{FINISH_RESOURCE} = shift || $self->{NAV_MAP}->finishResource();
   
Line 3354  sub new { Line 3828  sub new {
     weaken($self->{NAV_MAP} = shift);      weaken($self->{NAV_MAP} = shift);
     $self->{ID} = shift;      $self->{ID} = shift;
   
       $self->{USERNAME} = $self->{NAV_MAP}->{USERNAME};
       $self->{DOMAIN}   = $self->{NAV_MAP}->{DOMAIN};
   
     # Store this new resource in the parent nav map's cache.      # Store this new resource in the parent nav map's cache.
     $self->{NAV_MAP}->{RESOURCE_CACHE}->{$self->{ID}} = $self;      $self->{NAV_MAP}->{RESOURCE_CACHE}->{$self->{ID}} = $self;
     $self->{RESOURCE_ERROR} = 0;      $self->{RESOURCE_ERROR} = 0;
   
       $self->{DUEDATE_CACHE} = undef;
   
     # A hash that can be used by two-pass algorithms to store data      # A hash that can be used by two-pass algorithms to store data
     # about this resource in. Not used by the resource object      # about this resource in. Not used by the resource object
     # directly.      # directly.
Line 3375  sub navHash { Line 3854  sub navHash {
     my $self = shift;      my $self = shift;
     my $param = shift;      my $param = shift;
     my $id = shift;      my $id = shift;
     return $self->{NAV_MAP}->navhash($param . ($id?$self->{ID}:""));      my $arg = $param . ($id?$self->{ID}:"");
       if (ref($self) && ref($self->{NAV_MAP}) && defined($arg)) {
           return $self->{NAV_MAP}->navhash($arg);
       }
       return;
 }  }
   
 =pod  =pod
Line 3613  sub is_practice { Line 4096  sub is_practice {
 sub is_problem {  sub is_problem {
     my $self=shift;      my $self=shift;
     my $src = $self->src();      my $src = $self->src();
     if ($src =~ /\.(problem|exam|quiz|assess|survey|form|library|task)$/) {      if ($src =~ /$LONCAPA::assess_re/) {
  return !($self->is_practice());   return !($self->is_practice());
     }      }
     return 0;      return 0;
 }  }
   #
   #  The has below is the set of status that are considered 'incomplete'
   #
   my %incomplete_hash = 
   (
    TRIES_LEFT()     => 1,
    OPEN()           => 1,
    ATTEMPTED()      => 1
   
    );
   #
   #  Return tru if a problem is incomplete... for now incomplete means that
   #  any part of the problem is incomplete. 
   #  Note that if the resources is not a problem, 0 is returned.
   #
   sub is_incomplete {
       my $self = shift;
       if ($self->is_problem()) {
    foreach my $part (@{$self->parts()}) {
       if (exists($incomplete_hash{$self->status($part)})) {
    return 1;
       }
    }
       }
       return 0;
          
   }
 sub is_raw_problem {  sub is_raw_problem {
     my $self=shift;      my $self=shift;
     my $src = $self->src();      my $src = $self->src();
     if ($src =~ /\.(problem|exam|quiz|assess|survey|form|library|task)$/) {      if ($src =~ /$LONCAPA::assess_re/) {
         return 1;          return 1;
     }      }
     return 0;      return 0;
Line 3647  sub map_contains_problem { Line 4157  sub map_contains_problem {
 sub is_sequence {  sub is_sequence {
     my $self=shift;      my $self=shift;
     return $self->navHash("is_map_", 1) &&       return $self->navHash("is_map_", 1) && 
  $self->navHash("map_type_" . $self->map_pc()) eq 'sequence';      $self->navHash("map_type_" . $self->map_pc()) eq 'sequence';
 }  }
 sub is_survey {  sub is_survey {
     my $self = shift();      my $self = shift();
     my $part = shift();      my $part = shift();
     my $type = $self->parmval('type',$part);      my $type = $self->parmval('type',$part);
     if ($type eq 'survey') {      if (($type eq 'survey') || ($type eq 'surveycred')) {
         return 1;          return 1;
     }      }
     if ($self->src() =~ /\.(survey)$/) {      if ($self->src() =~ /\.(survey)$/) {
Line 3661  sub is_survey { Line 4171  sub is_survey {
     }      }
     return 0;      return 0;
 }  }
   sub is_anonsurvey {
       my $self = shift();
       my $part = shift();
       my $type = $self->parmval('type',$part);
       if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
           return 1;
       }
       return 0;
   }
 sub is_task {  sub is_task {
     my $self=shift;      my $self=shift;
     my $src = $self->src();      my $src = $self->src();
Line 3714  resource of the map. Line 4233  resource of the map.
   
 Returns a string with the type of the map in it.  Returns a string with the type of the map in it.
   
   =item *B<map_hierarchy>:
   
   Returns a string with a comma-separated ordered list of map_pc IDs
   for the hierarchy of maps containing a map, with the top level
   map first, then descending to deeper levels, with the enclosing map last.
   
 =back  =back
   
 =cut  =cut
Line 3744  sub map_type { Line 4269  sub map_type {
     my $pc = $self->map_pc();      my $pc = $self->map_pc();
     return $self->navHash("map_type_$pc", 0);      return $self->navHash("map_type_$pc", 0);
 }  }
   sub map_hierarchy {
       my $self = shift;
       my $pc = $self->map_pc();
       return $self->navHash("map_hierarchy_$pc", 0);
   }
   
 #####  #####
 # Property queries  # Property queries
Line 3774  their code.) Line 4304  their code.)
   
 =over 4  =over 4
   
 =item * B<acc>:  
   =item * B<printable>
   
   returns true if the current date is such that the 
   specified resource part is printable.
   
   
   =item * B<resprintable>
   
   Returns true if all parts in the resource are printable making the
   entire resource printable.
   
   =item * B<acc>
   
 Get the Client IP/Name Access Control information.  Get the Client IP/Name Access Control information.
   
Line 3827  Get the weight for the problem. Line 4369  Get the weight for the problem.
   
 =cut  =cut
   
   
   
   
   sub printable {
   
       my ($self, $part) = @_;
   
       &Apache::lonnet::logthis($self->symb());
   
   
       #  The following cases apply:
       #  - If a start date is not set, it is replaced by the open date.
       #  - Ditto for start/open replaced by content open.
       #  - If neither start nor printdates are set the part is printable.
       #  - Start date set but no end date: Printable if now >= start date.
       #  - End date set but no start date: Printable if now <= end date.
       #  - both defined: printable if start <= now <= end
       #
   
       # Get the print open/close dates for the resource.
   
       my $start = $self->parmval("printstartdate", $part);
       my $end   = $self->parmval("printenddate", $part);
   
       if (!$start) {
    $start = $self->parmval("opendate", $part);
       }
       if (!$start) {
    $start = $self->parmval("contentopen", $part);
       }
   
   
       my $now  = time();
   
   
       my $startok = 1;
       my $endok   = 1;
   
       if ((defined $start) && ($start ne '')) {
    $startok = $start <= $now;
       }
       if ((defined $end) && ($end != '')) {
    $endok = $end >= $now;
       }
       return $startok && $endok;
   }
   
   sub resprintable {
       my $self = shift;
   
       # get parts...or realize there are no parts.
   
       my $partsref = $self->parts();
       my @parts    = @$partsref;
   
       if (!@parts) {
    return $self->printable(0);
       } else {
    foreach my $part  (@parts) {
       if (!$self->printable($part)) { 
    return 0; 
       }
    }
    return 1;
       }
   }
   
 sub acc {  sub acc {
     (my $self, my $part) = @_;      (my $self, my $part) = @_;
     my $acc = $self->parmval("acc", $part);      my $acc = $self->parmval("acc", $part);
Line 3849  sub awarded { Line 4458  sub awarded {
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.awarded'};      return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.awarded'};
 }  }
   sub taskversion {
       my $self = shift; my $part = shift;
       $self->{NAV_MAP}->get_user_data();
       if (!defined($part)) { $part = '0'; }
       return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.version'};
   }
   sub taskstatus {
       my $self = shift; my $part = shift;
       $self->{NAV_MAP}->get_user_data();
       if (!defined($part)) { $part = '0'; }
       return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$self->taskversion($part).'.'.$part.'.status'};
   }
   sub solved {
       my $self = shift; my $part = shift;
       $self->{NAV_MAP}->get_user_data();
       if (!defined($part)) { $part = '0'; }
       return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.solved'};
   }
   sub checkedin {
       my $self = shift; my $part = shift;
       $self->{NAV_MAP}->get_user_data();
       if (!defined($part)) { $part = '0'; }
       if ($self->is_task()) {
           my $version = $self->taskversion($part);
           return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$version .'.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$version .'.'.$part.'.checkedin.slot'});
       } else {
           return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.checkedin.slot'});
       }
   }
 # this should work exactly like the copy in lonhomework.pm  # this should work exactly like the copy in lonhomework.pm
   # Why is there a copy in lonhomework?  Why not centralized?
   #
   #  TODO: Centralize duedate.
   #
   
 sub duedate {  sub duedate {
     (my $self, my $part) = @_;      (my $self, my $part) = @_;
       if (defined ($self->{DUEDATE_CACHE}->{$part})) {
           return $self->{DUEDATE_CACHE}->{$part};
       }
     my $date;      my $date;
     my @interval=$self->parmval("interval", $part);      my @interval=$self->parmval("interval", $part);
     my $due_date=$self->parmval("duedate", $part);      my $due_date=$self->parmval("duedate", $part);
Line 3868  sub duedate { Line 4514  sub duedate {
     } else {      } else {
  $date = $due_date;   $date = $due_date;
     }      }
       $self->{DUEDATE_CACHE}->{$part} = $date;
     return $date;      return $date;
 }  }
 sub handgrade {  sub handgrade {
Line 3929  sub weight { Line 4576  sub weight {
     my $self = shift; my $part = shift;      my $self = shift; my $part = shift;
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',      my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
                                 $self->symb(), $env{'user.domain'},                                  $self->symb(), $self->{DOMAIN},
                                 $env{'user.name'},                                  $self->{USERNAME},
                                 $env{'request.course.sec'});                                  $env{'request.course.sec'});
     return $weight;      return $weight;
 }  }
Line 3944  sub part_display { Line 4591  sub part_display {
     }      }
     return $display;      return $display;
 }  }
   sub slot_control {
       my $self=shift(); my $part = shift();
       if (!defined($part)) { $part = '0'; }
       my $useslots = $self->parmval("useslots", $part);
       my $availablestudent = $self->parmval("availablestudent", $part);
       my $available = $self->parmval("available", $part); 
       return ($useslots,$availablestudent,$available);
   }
   
 # Multiple things need this  # Multiple things need this
 sub getReturnHash {  sub getReturnHash {
     my $self = shift;      my $self = shift;
           
     if (!defined($self->{RETURN_HASH})) {      if (!defined($self->{RETURN_HASH})) {
         my %tmpHash  = &Apache::lonnet::restore($self->symb());          my %tmpHash  = &Apache::lonnet::restore($self->symb(),undef,$self->{DOMAIN},$self->{USERNAME});
         $self->{RETURN_HASH} = \%tmpHash;          $self->{RETURN_HASH} = \%tmpHash;
     }      }
 }         }       
Line 4376  sub OPEN                   { return 1; } Line 5031  sub OPEN                   { return 1; }
 sub PAST_DUE_NO_ANSWER     { return 2; }  sub PAST_DUE_NO_ANSWER     { return 2; }
 sub PAST_DUE_ANSWER_LATER  { return 3; }  sub PAST_DUE_ANSWER_LATER  { return 3; }
 sub ANSWER_OPEN            { return 4; }  sub ANSWER_OPEN            { return 4; }
 sub NOTHING_SET            { return 5; }   sub NOTHING_SET            { return 5; }
 sub NETWORK_FAILURE        { return 100; }  sub NETWORK_FAILURE        { return 100; }
   
 # getDateStatus gets the date status for a given problem part.   # getDateStatus gets the date status for a given problem part. 
Line 4462  Information not available due to network Line 5117  Information not available due to network
   
 Attempted, and not yet graded.  Attempted, and not yet graded.
   
   =item * B<CREDIT_ATTEMPTED>:
   
   Attempted, and credit received for attempt (survey and anonymous survey only).
   
 =back  =back
   
 =cut  =cut
Line 4473  sub CORRECT               { return 13; } Line 5132  sub CORRECT               { return 13; }
 sub CORRECT_BY_OVERRIDE   { return 14; }  sub CORRECT_BY_OVERRIDE   { return 14; }
 sub EXCUSED               { return 15; }  sub EXCUSED               { return 15; }
 sub ATTEMPTED             { return 16; }  sub ATTEMPTED             { return 16; }
   sub CREDIT_ATTEMPTED      { return 17; }
   
 sub getCompletionStatus {  sub getCompletionStatus {
     my $self = shift;      my $self = shift;
Line 4491  sub getCompletionStatus { Line 5151  sub getCompletionStatus {
     if ($status eq 'incorrect_by_override') {return $self->INCORRECT_BY_OVERRIDE; }      if ($status eq 'incorrect_by_override') {return $self->INCORRECT_BY_OVERRIDE; }
     if ($status eq 'excused') {return $self->EXCUSED; }      if ($status eq 'excused') {return $self->EXCUSED; }
     if ($status eq 'ungraded_attempted') {return $self->ATTEMPTED; }      if ($status eq 'ungraded_attempted') {return $self->ATTEMPTED; }
       if ($status eq 'credit_attempted') {
           if ($self->is_anonsurvey($part) || $self->is_survey($part)) {
               return $self->CREDIT_ATTEMPTED;
           } else {
               return $self->ATTEMPTED;
           }
       }
     return $self->NOT_ATTEMPTED;      return $self->NOT_ATTEMPTED;
 }  }
   
Line 4580  The item is open and not yet tried. Line 5247  The item is open and not yet tried.
   
 The problem has been attempted.  The problem has been attempted.
   
   =item * B<CREDIT_ATTEMPTED>:
   
   The problem has been attempted, and credit given for the attempt (survey and anonymous survey only).
   
 =item * B<ANSWER_SUBMITTED>:  =item * B<ANSWER_SUBMITTED>:
   
 An answer has been submitted, but the student should not see it.  An answer has been submitted, but the student should not see it.
Line 4588  An answer has been submitted, but the st Line 5259  An answer has been submitted, but the st
   
 =cut  =cut
   
 sub TRIES_LEFT       { return 20; }  sub TRIES_LEFT        { return 20; }
 sub ANSWER_SUBMITTED { return 21; }  sub ANSWER_SUBMITTED  { return 21; }
 sub PARTIALLY_CORRECT{ return 22; }  sub PARTIALLY_CORRECT { return 22; }
   
   sub RESERVED_LATER    { return 30; }
   sub RESERVED          { return 31; }
   sub RESERVED_LOCATION { return 32; }
   sub RESERVABLE        { return 33; }
   sub RESERVABLE_LATER  { return 34; }
   sub NOTRESERVABLE     { return 35; }
   sub NOT_IN_A_SLOT     { return 36; }
   sub NEEDS_CHECKIN     { return 37; }
   sub WAITING_FOR_GRADE { return 38; }
   sub UNKNOWN           { return 39; }
   
 sub status {  sub status {
     my $self = shift;      my $self = shift;
Line 4642  sub status { Line 5324  sub status {
         return ATTEMPTED;          return ATTEMPTED;
     }      }
   
       if ($completionStatus == CREDIT_ATTEMPTED) {
           return CREDIT_ATTEMPTED;
       }
   
     # If it's EXCUSED, then return that no matter what      # If it's EXCUSED, then return that no matter what
     if ($completionStatus == EXCUSED) {      if ($completionStatus == EXCUSED) {
         return EXCUSED;           return EXCUSED; 
Line 4680  sub status { Line 5366  sub status {
     }      }
   
     # Otherwise, it's untried and open      # Otherwise, it's untried and open
     return OPEN;       return OPEN;
   }
   
   sub check_for_slot {
       my $self = shift;
       my $part = shift;
       my $symb = $self->symb();
       my ($use_slots,$available,$availablestudent) = $self->slot_control($part);
       if (($use_slots ne '') && ($use_slots !~ /^\s*no\s*$/i)) {
           my @slots = (split(/:/,$availablestudent),split(/:/,$available));
           my $cid=$env{'request.course.id'};
           my $cdom=$env{'course.'.$cid.'.domain'};
           my $cnum=$env{'course.'.$cid.'.num'};
           my $now = time;
           my $num_usable_slots = 0;
           if (@slots > 0) {
               my %slots=&Apache::lonnet::get('slots',[@slots],$cdom,$cnum);
               if (&Apache::lonnet::error(%slots)) {
                   return (UNKNOWN);
               }
               my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');
               my ($checkedin,$checkedinslot);
               foreach my $slot_name (@sorted_slots) {
                   next if (!defined($slots{$slot_name}) || !ref($slots{$slot_name}));
                   my $end = $slots{$slot_name}->{'endtime'};
                   my $start = $slots{$slot_name}->{'starttime'};
                   my $ip = $slots{$slot_name}->{'ip'};
                   if ($self->simpleStatus() == OPEN) {
                       if ($end > $now) {
                           if ($start > $now) {
                               return (RESERVED_LATER,$start,$slot_name);
                           } else {
                               if ($ip ne '') {
                                   if (!&Apache::loncommon::check_ip_acc($ip)) {
                                       return (RESERVED_LOCATION,$ip,$slot_name);
                                   }
                               }
                               my @proctors;
                               if ($slots{$slot_name}->{'proctor'} ne '') {
                                   @proctors = split(',',$slots{$slot_name}->{'proctor'});
                               }
                               if (@proctors > 0) {
                                   ($checkedin,$checkedinslot) = $self->checkedin();
                                   unless ((grep(/^\Q$checkedin\E/,@proctors)) &&
                                           ($checkedinslot eq $slot_name)) {
                                       return (NEEDS_CHECKIN,undef,$slot_name); 
                                   }
                               }
                               return (RESERVED,$end,$slot_name);
                           }
                       }
                   } elsif ($end > $now) {
                       $num_usable_slots ++;
                   }
               }
               my ($is_correct,$got_grade);
               if ($self->is_task()) {
                   my $taskstatus = $self->taskstatus();
                   $is_correct = (($taskstatus eq 'pass') || 
                                  ($self->solved() =~ /^correct_/));
                   $got_grade = ($taskstatus =~ /^(?:pass|fail)$/);
               } else {
                   $got_grade = 1;
                   $is_correct = ($self->solved() =~ /^correct_/);   
               }
               ($checkedin,$checkedinslot) = $self->checkedin();
               if ($checkedin) {
                   if (!$got_grade) {
                       return (WAITING_FOR_GRADE);
                   } elsif ($is_correct) {
                       return (CORRECT); 
                   }
               }
               if ($num_usable_slots) {
                   return(NOT_IN_A_SLOT);
               }
           }
           my $reservable = &Apache::lonnet::get_reservable_slots($cnum,$cdom,$env{'user.name'},
                                                                  $env{'user.domain'});
           if (ref($reservable) eq 'HASH') {
               if ((ref($reservable->{'now_order'}) eq 'ARRAY') && (ref($reservable->{'now'}) eq 'HASH')) {
                   foreach my $slot (reverse (@{$reservable->{'now_order'}})) {
                       if (($reservable->{'now'}{$slot}{'symb'} eq '') ||
                           ($reservable->{'now'}{$slot}{'symb'} eq $symb)) {
                           return(RESERVABLE,$reservable->{'now'}{$slot}{'endreserve'});
                       }
                   }
               }
               if ((ref($reservable->{'future_order'}) eq 'ARRAY') && (ref($reservable->{'future'}) eq 'HASH')) {
                   foreach my $slot (@{$reservable->{'future_order'}}) {
                       if (($reservable->{'future'}{$slot}{'symb'} eq '') ||
                           ($reservable->{'future'}{$slot}{'symb'} eq $symb)) {
                           return(RESERVABLE_LATER,$reservable->{'future'}{$slot}{'startreserve'});
                       }
                   }
               }
           }
           return(NOTRESERVABLE);
       }
       return;
 }  }
   
 sub CLOSED { return 23; }  sub CLOSED { return 23; }
Line 4732  my %compositeToSimple = Line 5517  my %compositeToSimple =
       INCORRECT()             => INCORRECT,        INCORRECT()             => INCORRECT,
       OPEN()                  => OPEN,        OPEN()                  => OPEN,
       ATTEMPTED()             => ATTEMPTED,        ATTEMPTED()             => ATTEMPTED,
         CREDIT_ATTEMPTED()      => CORRECT,
       ANSWER_SUBMITTED()      => ATTEMPTED        ANSWER_SUBMITTED()      => ATTEMPTED
      );       );
   
Line 4806  sub completable { Line 5592  sub completable {
         # and it is not "attempted" (manually graded problem), it is          # and it is not "attempted" (manually graded problem), it is
         # not "complete"          # not "complete"
  if ($self->getCompletionStatus($part) == ATTEMPTED() ||   if ($self->getCompletionStatus($part) == ATTEMPTED() ||
               $self->getCompletionStatus($part) == CREDIT_ATTEMPTED() ||
     $status == ANSWER_SUBMITTED() ) {      $status == ANSWER_SUBMITTED() ) {
     # did this part already, as well as we can      # did this part already, as well as we can
     next;      next;
Removed from v.1.415.4.1  
changed lines
  Added in v.1.495

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