Diff for /loncom/homework/bridgetask.pm between versions 1.57 and 1.233

version 1.57, 2005/09/30 20:34:53 version 1.233, 2007/05/03 16:51:47
Line 38  use Apache::lonlocal; Line 38  use Apache::lonlocal;
 use Apache::lonxml;  use Apache::lonxml;
 use Apache::slotrequest();  use Apache::slotrequest();
 use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
   use LONCAPA;
    
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));      &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Question','QuestionText','Setup','Instance','InstanceText','Criteria','CriteriaText','GraderNote','ClosingParagraph'));
 }  }
   
   my %dimension;
   my $top = 'top';
   
 sub initialize_bridgetask {  sub initialize_bridgetask {
     # id of current Dimension, 0 means that no dimension is current       # id of current Dimension, 0 means that no dimension is current 
     # (inside <Task> only)      # (inside <Task> only)
     $Apache::bridgetask::dimension='';      @Apache::bridgetask::dimension=();
     # list of all Dimension ids seen  
     @Apache::bridgetask::dimensionlist=();  
     # mandatory attribute of all Dimensions seen  
     %Apache::bridgetask::dimensionmandatory=();  
     # list of all current Instance ids      # list of all current Instance ids
     @Apache::bridgetask::instance=();      %Apache::bridgetask::instance=();
     # list of all Instance ids seen in this problem      # list of all Instance ids seen in this problem
     @Apache::bridgetask::instancelist=();      @Apache::bridgetask::instancelist=();
     # key of queud user data that we are currently grading      # key of queud user data that we are currently grading
     $Apache::bridgetask::queue_key='';      $Apache::bridgetask::queue_key='';
       undef(%dimension);
 }  }
   
 sub proctor_check_auth {  sub proctor_check_auth {
     my ($slot_name,$slot)=@_;      my ($slot_name,$slot,$type)=@_;
     my $user=$env{'form.proctorname'};      my $user=$env{'form.proctorname'};
     my $domain=$env{'form.proctordomain'};      my $domain=$env{'form.proctordomain'};
           
     my @allowed=split(",",$slot->{'proctor'});      my @allowed=split(",",$slot->{'proctor'});
     foreach my $possible (@allowed) {      foreach my $possible (@allowed) {
  my ($puser,$pdom)=(split('@',$possible));   my ($puser,$pdom)=(split(':',$possible));
  if ($puser eq $user && $pdom eq $domain) {   if ($puser eq $user && $pdom eq $domain) {
     my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);      my $authenticated=0;
     if ($authhost ne 'no_host') {      if ( $slot->{'secret'} =~ /\S/ &&
  my $version=   $env{'form.proctorpassword'} eq $slot->{'secret'} ) {
     $Apache::lonhomework::results{'resource.version'}=   $authenticated=1;
     ++$Apache::lonhomework::history{'resource.version'};      } else {
  $Apache::lonhomework::results{"resource.$version.checkedin"}=  
     $user.'@'.$domain;   my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
  $Apache::lonhomework::results{"resource.$version.checkedin.slot"}=   if ($authhost ne 'no_host') {
     $slot_name;      $authenticated=1;
  foreach my $key (keys(%Apache::lonhomework::history)) {  
     if ($key=~/^resource\.0\./) {  
  $Apache::lonhomework::results{$key}='';  
     }  
  }   }
       }
       if ($authenticated) {
    &check_in($type,$user,$domain,$slot_name);
  return 1;   return 1;
     }      }
  }   }
Line 89  sub proctor_check_auth { Line 90  sub proctor_check_auth {
     return 0;      return 0;
 }  }
   
   sub check_in {
       my ($type,$user,$domain,$slot_name) = @_;
       my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
       if ( $useslots eq 'map_map') {
    &check_in_sequence($user,$domain,$slot_name);
       } else {
    &create_new_version($type,$user,$domain,$slot_name);
    &Apache::structuretags::finalize_storage();
       }
       return 1;
   }
   
   sub check_in_sequence {
       my ($user,$domain,$slot_name) = @_;
       my $navmap = Apache::lonnavmaps::navmap->new();
       my ($symb) = &Apache::lonnet::whichuser();
       my ($map)  = &Apache::lonnet::decode_symb($symb);
       my @resources = 
    $navmap->retrieveResources($map, sub { $_[0]->is_problem() },0,0);
       my %old_history = %Apache::lonhomework::history;
       my %old_results = %Apache::lonhomework::results;
   
       foreach my $res (@resources) {
    &Apache::lonxml::debug("doing ".$res->src);
    &Apache::structuretags::initialize_storage($res->symb);
    my $type = ($res->is_task()) ? 'Task' : 'problem';
    &create_new_version($type,$user,$domain,$slot_name);
    &Apache::structuretags::finalize_storage($res->symb);
       }
       
       %Apache::lonhomework::history = %old_history;
       %Apache::lonhomework::results = %old_results;
   }
   
   sub create_new_version {
       my ($type,$user,$domain,$slot_name) = @_;
       
       my $id = '0';
       if ($type eq 'Task') {
    # increment version
    my $version=
       $Apache::lonhomework::history{'resource.0.version'};
    $version++;
    &Apache::lonxml::debug("Making version $version");
    #clean out all current results
    foreach my $key (keys(%Apache::lonhomework::history)) {
       if ($key=~/^resource\.0\./) {
    $Apache::lonhomework::results{$key}='';
       }
    }
   
    #setup new version and who did it
           $Apache::lonhomework::results{'resource.0.version'}=$version;
    $id = "$version.0";
    if (!defined($user) || !defined($domain)) {
       $user = $env{'user.name'};
       $domain = $env{'user.domain'};
    }
   
       } elsif ($type eq 'problem') {
    &Apache::lonxml::debug("authed $slot_name");
       }
       if (!defined($user) || !defined($domain)) {
    $user = $env{'user.name'};
    $domain = $env{'user.domain'};
       }
   
       $Apache::lonhomework::results{"resource.$id.checkedin"}=
    $user.':'.$domain;
   
       if (defined($slot_name)) {
    $Apache::lonhomework::results{"resource.$id.checkedin.slot"}=
       $slot_name;
       }
   }
   
 sub get_version {  sub get_version {
     my ($version,$previous);      my ($version,$previous);
     if ($env{'form.previousversion'} &&       if ($env{'form.previousversion'} && 
  $env{'form.previousversion'} ne 'current' &&   $env{'form.previousversion'} ne 'current' &&
  defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {   defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.0.status'})) {
  $version=$env{'form.previousversion'};   $version=$env{'form.previousversion'};
  $previous=1;   $previous=1;
     } else {      } else {
  $version=$Apache::lonhomework::history{'resource.version'};   if (defined($Apache::lonhomework::results{'resource.0.version'})) {
       $version=$Apache::lonhomework::results{'resource.0.version'};
    } elsif (defined($Apache::lonhomework::history{'resource.0.version'})) {
       $version=$Apache::lonhomework::history{'resource.0.version'};
    }
  $previous=0;   $previous=0;
     }      }
     if (wantarray) {      if (wantarray) {
Line 109  sub get_version { Line 190  sub get_version {
 sub add_previous_version_button {  sub add_previous_version_button {
     my ($status)=@_;      my ($status)=@_;
     my $result;      my $result;
     if ($Apache::lonhomework::history{'resource.version'} eq '') {      if ($Apache::lonhomework::history{'resource.0.version'} eq '') {
  return '';   return '';
     }      }
     if ($Apache::lonhomework::history{'resource.version'} < 2 &&      if ($Apache::lonhomework::history{'resource.0.version'} < 2 &&
  $status ne 'NEEDS_CHECKIN') {   $status ne 'NEEDS_CHECKIN') {
  return '';   return '';
     }      }
Line 123  sub add_previous_version_button { Line 204  sub add_previous_version_button {
     "</h3>\n";      "</h3>\n";
     }      }
     my @to_show;      my @to_show;
     foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {      foreach my $test_version (1..$Apache::lonhomework::history{'resource.0.version'}) {
  if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {   if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.0.status'})) {
     push(@to_show,$test_version);      push(@to_show,$test_version);
  }   }
     }      }
Line 132  sub add_previous_version_button { Line 213  sub add_previous_version_button {
  join("</option>\n<option>",@to_show).   join("</option>\n<option>",@to_show).
      "</option>\n";       "</option>\n";
     $list.='<option value="current">'.&mt('Current').'</option>';      $list.='<option value="current">'.&mt('Current').'</option>';
     $result.='<form name="getprevious" method="POST" action="';      $result.='<form name="getprevious" method="post" action="';
     my $uri=$env{'request.uri'};      my $uri=$env{'request.uri'};
     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }      if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
     $result.=$uri.'">'.      $result.=$uri.'">'.
Line 144  sub add_previous_version_button { Line 225  sub add_previous_version_button {
 }  }
   
 sub add_grading_button {  sub add_grading_button {
     my $result=' <input type="submit" name="gradeasubmission" value="'.      my (undef,$cid)=&Apache::lonnet::whichuser();
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my %sections = &Apache::loncommon::get_sections($cdom,$cnum);
   
       my $size=5;
       if (scalar(keys(%sections)) < 3) {
    $size=scalar(keys(%sections))+2;
       }
       my $sec_select = "\n".'<select multiple="multiple" name="chosensections" size="'.$size.'">'."\n";
       $sec_select .= "\t<option value='all' selected='selected'>all</option>\n";
       foreach my $sec (sort {lc($a) cmp lc($b)} (keys(%sections))) {
    $sec_select .= "\t<option value=\"$sec\">$sec</option>\n";
       }
       $sec_select .= "\t<option value='none'>none</option>\n</select>\n";
       
       my $result="\n\t".'<input type="submit" name="gradeasubmission" value="'.
  &mt("Get a submission to grade").'" />';   &mt("Get a submission to grade").'" />';
     $result.='<input type="hidden" name="grade_target" value="webgrade" />';      $result.="\n\t".'<input type="hidden" name="grade_target" value="webgrade" />';
     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {      if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
  my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');   my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
  $result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);   $result.="\n\t".'<table>'."\n\t\t".'<tr>';
    $result.="\n\t\t\t".'<td rowspan="4">Specify a section: </td>'.
       "\n\t\t\t".'<td rowspan="4">'.$sec_select."\n\t\t\t".'</td>';
    $result.="\n\t\t\t".'<td>'.'<input type="submit" name="reviewagrading" value="'.
       &mt("Select an entry from the grading queue:").'" /> ';
   
  $result.=' <input type="submit" name="reviewagrading" value="'.   $result.= "\n\t\t\t\t".&mt("[_1] entries, [_2] ready, [_3] being graded",$entries,$ready,$locks).'</td>'."\n\t\t".'</tr>'."\n";
     &mt("Select an entry from the grading queue").'" /> </p>'."\n";  
   
  ($entries,$ready,$locks)=&get_queue_counts('reviewqueue');   ($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
  $result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);   $result.="\n\t\t".'<tr>'.
  $result.=' <input type="submit" name="reviewasubmission" value="'.      "\n\t\t\t".'<td>'.
     &mt("Select an entry from the review queue").'" /> </p>'."\n";      "\n\t\t\t\t".'<input type="submit" name="reviewasubmission" value="'.
  $result.=' <input type="submit" name="regradeasubmission" value="'.      &mt("Select an entry from the review queue:").'" /> ';
     &mt("Select a user to regrade.").'" /> </p>'."\n";   $result.=&mt("[_1] entries, [_2] ready, [_3] being graded",
        $entries,$ready,$locks).'</td>'."\n\t\t".'</tr>'."\n";
    $result.="\n\t\t".'<tr>'.
       "\n\t\t\t".'<td>'.
       "\n\t\t\t\t".'<input type="submit" name="regradeasubmission" value="'.
       &mt("List of user's grade status").'" /> </td>'
       ."\n\t\t".'</tr>'
       ."\n\t".'</table>'."\n";
    $result.="\n\t".'<p>'.
       "\n\t\t".'<input type="submit" name="regradeaspecificsubmission" value="'.
       &mt("Regrade specific user:").'" />';
    $result.= "\n\t\t".'<input type="text" size="12" name="gradinguser" />';
    $result.=&Apache::loncommon::select_dom_form($env{'user.domain'},
        'gradingdomain');
    $result.=' '.
       &Apache::loncommon::selectstudent_link('gradesubmission',
      'gradinguser',
      'gradingdomain');
    $result.=&Apache::loncommon::studentbrowser_javascript();
    $result.= '</p>'."\n";
     }      }
     return $result;      return $result;
 }  }
Line 169  sub add_request_another_attempt_button { Line 288  sub add_request_another_attempt_button {
     if (!$text) { $text="Request another attempt"; }      if (!$text) { $text="Request another attempt"; }
     my $result;      my $result;
     my $symb=&Apache::lonnet::symbread();      my $symb=&Apache::lonnet::symbread();
       # not a slot access based resource
       my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
       if ($useslots =~ /^\s*no\s*$/i) {
    return '';
       }
   
     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);      my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
     my $action='get_reservation';      my $action='get_reservation';
     if ($slot_name) {      if ($slot_name) {
Line 177  sub add_request_another_attempt_button { Line 302  sub add_request_another_attempt_button {
  my $description=&Apache::slotrequest::get_description($slot_name,   my $description=&Apache::slotrequest::get_description($slot_name,
       $slot);        $slot);
  $result.=(<<STUFF);   $result.=(<<STUFF);
 <p> Will be next available: $description </p>      <p> Will be next available: $description </p>
 STUFF  STUFF
     }      }
           
     if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }      if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
     $symb=&Apache::lonnet::escape($symb);      $symb=&escape($symb);
     $result.='<form method="POST" action="/adm/slotrequest">'.      $result.=
  '<input type="hidden" name="symb" value="'.$symb.'" />'.          "\n\t".'<form method="post" action="/adm/slotrequest">'."\n\t\t".
  '<input type="hidden" name="command" value="'.$action.'" />'.   '<input type="hidden" name="symb" value="'.$symb.'" />'."\n\t\t".
    '<input type="hidden" name="command" value="'.$action.'" />'."\n\t\t".
  '<input type="submit" name="requestattempt" value="'.   '<input type="submit" name="requestattempt" value="'.
  &mt($text).'" />'.   &mt($text).'" />'."\n\t".
  '</form>';   '</form>'."\n";
     return $result;      return $result;
 }  }
   
Line 205  sub preserve_grade_info { Line 331  sub preserve_grade_info {
 }  }
   
 sub style {  sub style {
     return (<<STYLE);      my ($target) = @_;
 <style type="text/css">      if ($target eq 'web'
 .fail, .pass, .neutral {   || $target eq 'webgrade') {
     position: relative;   my $style = (<<STYLE);
     margin : 5px;  <link rel="stylesheet" type="text/css" href="/res/adm/includes/task.css" />
     margin-bottom :10px;  
     padding : 4px;  
     padding-left : 75px;  
  border : thin solid;  
     font-weight : bolder;  
     font-size: smaller;  
     font-family: Arial;  
     background-color : rgb(255,240,225);  
 }  
   
 .fail h4, .pass h4 {  
  position:absolute;  
  left: -4px;  
  top: -8px;  
  padding:2px;  
  margin:0;  
  background-color : rgb(255,240,225);  
  border : thin solid;  
 }  
   
 .fail {  
  color: red;  
 }  
   
 .pass {  
     color : green;  
 }  
   
 .neutral {  
  color : blue;  
 }  
   
 .question {  
  border : thin solid black;  
  padding : 4px;  
  margin-bottom : 1em;  
 }  
   
 .grade {  
  font-size: x-large;  
  font-family: Arial;  
  position:absolute;  
  left: 5px;  
  top: -5px;  
  width: 70px;  
 }  
   
 div#feedback h1 {  
     color : inherit;  
 }  
 </style>  
 STYLE  STYLE
           if ($env{'browser.type'} eq 'explorer'
       && $env{'browser.os'} eq 'win' ) {
       if ($env{'browser.version'} < 7) {
    $style .= (<<STYLE);
   <link rel="stylesheet" type="text/css" href="/res/adm/includes/task_ie.css" />
   STYLE
               } else {
    $style .= (<<STYLE);
   <link rel="stylesheet" type="text/css" href="/res/adm/includes/task_ie7.css" />
   STYLE
       }
    }
    return $style;
       }
       return;
 }  }
   
 sub show_task {  sub show_task {
Line 274  sub show_task { Line 363  sub show_task {
        ( $status eq 'NOT_IN_A_SLOT') ||         ( $status eq 'NOT_IN_A_SLOT') ||
        ( $status eq 'NEEDS_CHECKIN') ||         ( $status eq 'NEEDS_CHECKIN') ||
        ( $status eq 'WAITING_FOR_GRADE') ||         ( $status eq 'WAITING_FOR_GRADE') ||
        ( $status eq 'INVALID_ACCESS') )) {         ( $status eq 'INVALID_ACCESS') ||
          ( &get_version() eq ''))) {
  return 0;   return 0;
     }      }
       if ($env{'form.donescreen'}) { return 0; }
     return 1;      return 1;
 }  }
   
   my @delay;
   sub nest { 
       if (@delay) {
    return $delay[-1];
       } else {
    return;
       }
   }
   
   sub start_delay {
       push(@delay,1);
   }
   sub end_delay {
       pop(@delay);
   }
   
   sub nested_parse {
       my ($str,$env,$args) = @_;
       my @old_env = @Apache::scripttag::parser_env;
       @Apache::scripttag::parser_env = @$env;
       if (exists($args->{'set_dim_id'})) {
    &enable_dimension_parsing($args->{'set_dim_id'});
       }
       push(@delay,(($args->{'delayed_dim_results'})? 1 : 0));
       my $result = &Apache::scripttag::xmlparse($$str);
       pop(@delay);
       if (exists($args->{'set_dim_id'})) {
    &disable_dimension_parsing();
       }
       @Apache::scripttag::parser_env = @old_env;
       if ($args->{'delayed_dim_results'}) {
    my $dim = &get_dim_id();
    &Apache::lonxml::debug(" tossing out $result ");
    &Apache::lonxml::debug(" usining out $dim 's  ". $dimension{$dim}{'result'});
    return $dimension{$dim}{'result'};
       }
       return $result;
   }
   
 sub internal_location {  sub internal_location {
     my ($id)=@_;      my ($id)=@_;
     return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';      return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';
 }  }
   
   sub submission_time_stamp {
       my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
       my $submissiontime;
       my $version=$Apache::lonhomework::history{'resource.0.version'};
       for (my $v=$Apache::lonhomework::history{'version'};$v>0;$v--) {
    if (defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.bridgetask.portfiles'})
       && defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.tries'})) {
       $submissiontime=$Apache::lonhomework::history{$v.':timestamp'};
       last;
    }
       }
       my $result;
       if ($submissiontime) {
    my $slot_name=$Apache::lonhomework::history{'resource.'.$version.'.0.checkedin.slot'};
    my %slot=&Apache::lonnet::get_slot($slot_name);
    my $diff = $slot{'endtime'} - $submissiontime;
    my ($color,$when)=('#FF6666','after');
    if ($diff > 0) { ($color,$when)=('#336600','before'); }
    my $info;
    $diff = abs($diff);
    if ($diff%60) { $info=($diff%60).' seconds'; }
    $diff=int($diff/60);
    if ($diff%60) { $info=($diff%60).' minutes '.$info; }
    $diff=int($diff/60);
    if ($diff) {    $info=$diff.' hours '.$info; }
    $result='<p><font color="'.$color.'">'.
       &mt('Student submitted [_1] [_2] the deadline. '.
    '(Submission was at [_3], end of period was [_4].)',
    $info,$when,
    &Apache::lonlocal::locallocaltime($submissiontime),
    &Apache::lonlocal::locallocaltime($slot{'endtime'})).
    '</font></p>';
       }
       return $result;
   }
   
   sub file_list {
       my ($files,$uname,$udom) = @_;
       if (!defined($uname) || !defined($udom)) {
    (undef,undef,$udom,$uname) = &Apache::lonnet::whichuser();
       }
       my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
   
       my $file_list="<ul class=\"LC_GRADING_handininfo\">\n";
       foreach my $partial_file (split(',',$files)) {
    my $file=$file_url.$partial_file;
    $file=~s|/+|/|g;
    &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
    $file_list.='<li><span style="white-space: nowrap;"><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
       &Apache::loncommon::icon($file).'" alt="file icon" border="0" /> '.$file.
       '</a></span></li>'."\n";
       }
       $file_list.="</ul>\n";
       return $file_list;
   }
   
   sub grade_mode {
       if ($env{'form.regrade'} || $env{'form.regradeaspecificsubmission'}) {
    return 'regrade';
       }
       return 'queue_grade';
   }
   
   sub webgrade_standard_info {
       my ($version)=&get_version();
   
       my $file_list = &file_list($Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"});
   
       my %lt=('done'   => 'Next Item',
       'stop'   => 'Quit Grading',
       'fail'   => 'Fail Rest',
       'cancel' => 'Cancel',
       'submit' => 'Submit Grades',
       );
       %lt=&Apache::lonlocal::texthash(%lt);
   
       my $result=<<INFO;
     <div class="LC_GRADING_maincontrols">
   INFO
   
       if ($env{'request.state'} eq 'construct') {
    $result.=<<INFO;
       <input type="submit" name="next" value="$lt{'submit'}" />
   INFO
       } else {
    if (&grade_mode() eq 'regrade' && $env{'request.state'} ne 'construct') {
       $result.=<<INFO;
       <input type="submit" name="cancel" value="$lt{'cancel'}" />
   INFO
           }
   
    $result.=<<INFO;
       <input type="submit" name="next" value="$lt{'done'}" />
       <input type="submit" name="stop" value="$lt{'stop'}" />
   INFO
       }
       $result.=<<INFO;
       <input type="button" name="fail" value="$lt{'fail'}" 
              onclick="javascript:onFailRest()" />
     </div>
     $file_list
   INFO
       return $result;
   
   }
   
   sub done_screen {
       my ($version) = @_;
       my $title=&Apache::lonnet::gettitle($env{'request.uri'});
       my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
       my (undef,undef,$domain,$user)= &Apache::lonnet::whichuser();
       my $files = '<ul>';
       my $msg;
       foreach my $file (@files) {
    my $url="/uploaded/$domain/$user/portfolio$file";
    if (! &Apache::lonnet::stat_file($url)) {
       $file = &mt('<span class="LC_error"> Nonexistent file:</span> '.
    '<span class="LC_filename">[_1]</span>',$file);
       $msg .= "<p>Submitted non-existant file $file</p>\n";
    } else {
       $file = '<span class="LC_filename">'.$file.'</span>';
       $msg .= "<p>Submitted file $file</p>\n";
    }
    $files .= '<li>'.$file.'</li>';
       }
       $files.='</ul>';
       my $subject = "Submission message for $title";
       my ($message_status,$comment_status);
       my $setting = $env{'course.'.$env{'request.course.id'}.'.task_messages'};
       $setting =~ s/^\s*(\S*)\s*$/$1/;
       $setting = lc($setting);
       if ($setting eq 'only_student'
    || $setting eq 'student_and_user_notes_screen') {
    $message_status =
       &Apache::lonmsg::user_normal_msg($user,$domain,$subject,$msg);
    $message_status = '<p>'.&mt('Message sent to user: [_1]',
       $message_status).' </p>';
       }
       if ($setting eq 'student_and_user_notes_screen') {
    $comment_status = 
       &Apache::lonmsg::store_instructor_comment($subject.'<br />'.
         $msg,$user,$domain);
    $comment_status = '<p>'.&mt('Message sent to instructor: [_1]',
       $comment_status).' </p>';
       }
       return <<DONESCREEN;
   <h2>$title</h2>
   <p> Files submitted: $files </p>
   <p> You are now done with this Bridge Task </p>
   <hr />
   <p> <a href="/adm/logout">Logout</a> </p>
   <p> <a href="/adm/roles">Change to a different course</a> </p>
   $message_status
   $comment_status
   DONESCREEN
   
   }
   
 sub start_Task {  sub start_Task {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
     my ($status,$accessmsg,$slot);      my ($status,$accessmsg,$slot);
       &Apache::structuretags::init_problem_globals('Task');
     if ($target ne 'webgrade') {      if ($target ne 'webgrade') {
  &Apache::structuretags::initialize_storage();   &Apache::structuretags::initialize_storage();
  &Apache::lonhomework::showhash(%Apache::lonhomework::history);   &Apache::lonhomework::showhash(%Apache::lonhomework::history);
    if ($env{'request.state'} eq 'construct') {
       &Apache::structuretags::setup_rndseed($safeeval);
    }
     }       } 
   
     $Apache::lonhomework::parsing_a_task=1;      $Apache::lonhomework::parsing_a_task=1;
     #should get back a <html> or the neccesary stuff to start XML/MathML  
     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=      my $name;
  &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);      if ($target eq 'web' || $target eq 'webgrade') {
        $name = &Apache::structuretags::get_resource_name($parstack,$safeeval);
     if ($target eq 'web') {      }
  if ($Apache::lonhomework::modifygrades) {  
     $body_tag_start.='<form name="gradesubmission" method="POST" action="';      my ($result,$form_tag_start);
       if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
    || $target eq 'edit') {
    ($result,$form_tag_start) =
       &Apache::structuretags::page_start($target,$token,$tagstack,
          $parstack,$parser,$safeeval,
          $name,&style($target));
       }
   
       if ($target eq 'web' && $env{'request.state'} ne 'construct') {
    if ($Apache::lonhomework::queuegrade
       || $Apache::lonhomework::modifygrades) {
       $result.='<form name="gradesubmission" method="post" action="';
     my $uri=$env{'request.uri'};      my $uri=$env{'request.uri'};
     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }      if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
     $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";      $result.=$uri.'">'.&add_grading_button()."</form>\n";
     my $symb=&Apache::lonnet::symbread();      my $symb=&Apache::lonnet::symbread();
     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {      if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
  $body_tag_start.='<form method="POST" action="/adm/slotrequest">'.   $result.='<form method="post" name="slotrequest" action="/adm/slotrequest">'.
     '<input type="hidden" name="symb" value="'.$symb.'" />'.      '<input type="hidden" name="symb" value="'.$symb.'" />'.
     '<input type="hidden" name="command" value="showslots" />'.      '<input type="hidden" name="command" value="showslots" />'.
     '<input type="submit" name="requestattempt" value="'.      '<input type="submit" name="requestattempt" value="'.
     &mt('Show Slot list').'" />'.      &mt('Show Slot list').'" />'.
     '</form>';      '</form>';
    my $target_id = 
       &Apache::lonstathelpers::make_target_id({symb => $symb,
        part => '0'});
    $result.='<form method="post" name="gradingstatus" action="/adm/statistics">'.
       '<input type="hidden" name="problemchoice" value="'.$target_id.'" />'.
       '<input type="hidden" name="reportSelected" value="grading_analysis" />'.
       '<input type="submit" name="grading" value="'.
       &mt('Show Grading Status').'" />'.
       '</form>';
     }      }
  }   }
     }      }
     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||      if ($target =~/(web|webgrade)/ && $env{'request.state'} eq 'construct') {
  $target eq 'tex') {   $form_tag_start.=&Apache::structuretags::problem_web_to_edit_header($env{'form.rndseed'});
       }
       if ($target eq 'web' 
    || ($target eq 'grade' && !$env{'form.webgrade'}) 
    || $target eq 'answer' 
    || $target eq 'tex') {
  my ($version,$previous)=&get_version();   my ($version,$previous)=&get_version();
  ($status,$accessmsg,my $slot_name,$slot) =    ($status,$accessmsg,my $slot_name,$slot) = 
     &Apache::lonhomework::check_task_access('0');      &Apache::lonhomework::check_slot_access('0','Task');
    if ($status eq 'CAN_ANSWER' && $version eq '') {
       # CAN_ANSWER mode, and no current version, unproctored access
       # thus self-checkedin
       &check_in('Task',undef,undef,$slot_name);
       &add_to_queue('gradingqueue',{'type' => 'Task',
     'time' => time,
     'slot' => $slot_name});
       ($version,$previous)=&get_version();
    }
   
    my $status_id = 
       ($previous || $status eq 'SHOW_ANSWER') ? 'LC_task_feedback'
                                               : 'LC_task_take';
    $result .= '<div class="LC_task" id="'.$status_id.'">'."\n";
   
  push(@Apache::inputtags::status,$status);   push(@Apache::inputtags::status,$status);
  $Apache::inputtags::slot_name=$slot_name;   $Apache::inputtags::slot_name=$slot_name;
  my $expression='$external::datestatus="'.$status.'";';   my $expression='$external::datestatus="'.$status.'";';
  $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';   $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.0.solved"}.'";';
  &Apache::run::run($expression,$safeeval);   &Apache::run::run($expression,$safeeval);
  &Apache::lonxml::debug("Got $status");   &Apache::lonxml::debug("Got $status");
  $body_tag_start.=&add_previous_version_button($status);   $result.=&add_previous_version_button($status);
  if (!&show_task($status,$previous)) {   if (!&show_task($status,$previous)) {
     my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);      my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
     if ( $target eq "web" ) {      if ( $target eq "web" ) {
  $result.= $head_tag_start.'</head>'.$body_tag_start;   if ($env{'request.state'} eq 'construct') {
       $result.=$form_tag_start;
    }
  my $msg;   my $msg;
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';      $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
Line 343  sub start_Task { Line 678  sub start_Task {
  '</h1>'.&proctor_validation_screen($slot);   '</h1>'.&proctor_validation_screen($slot);
  } elsif ($status eq 'WAITING_FOR_GRADE') {   } elsif ($status eq 'WAITING_FOR_GRADE') {
     $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';      $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
    } elsif ($env{'form.donescreen'}) {
       $result .= &done_screen($version);
  } elsif ($status ne 'NOT_YET_VIEWED') {   } elsif ($status ne 'NOT_YET_VIEWED') {
     $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';      $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
  }   }
Line 359  sub start_Task { Line 696  sub start_Task {
  }   }
     } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {      } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
  if ($status eq 'NEEDS_CHECKIN') {   if ($status eq 'NEEDS_CHECKIN') {
     &proctor_check_auth($slot_name,$slot);      if(&proctor_check_auth($slot_name,$slot,'Task')
          && defined($Apache::inputtags::slot_name)) {
    my $result=
       &add_to_queue('gradingqueue',
     {'type' => 'Task',
      'time' => time,
      'slot' => 
          $Apache::inputtags::slot_name});
    &Apache::lonxml::debug("add_to_queue said $result");
       }
  }   }
     }      }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);  
     $result.="$head_tag_start<title>$name</title></head>  
               $body_tag_start \n".&style();  
       
     $result.=&preserve_grade_info();      $result.=&preserve_grade_info();
     $result.=&internal_location();      $result.=&internal_location(); 
     $result.=$form_tag_start.      $result.=$form_tag_start."\t".
  '<input type="hidden" name="submitted" value="yes" />';   '<input type="hidden" name="submitted" value="yes" />';
     &Apache::lonxml::startredirection();      &Apache::lonxml::startredirection();
  }   }
Line 377  sub start_Task { Line 720  sub start_Task {
       $target eq 'webgrade') {        $target eq 'webgrade') {
  my $webgrade='yes';   my $webgrade='yes';
  if ($target eq 'webgrade') {   if ($target eq 'webgrade') {
     $result.=$head_tag_start.$body_tag_start;      $result .= '<div class="LC_task">'."\n";
       $result.= "\n".'<div class="LC_GRADING_task">'."\n".
    '<script type="text/javascript" 
                            src="/res/adm/includes/task_grading.js"></script>';
     #$result.='<br />Review'.&show_queue('reviewqueue');      #$result.='<br />Review'.&show_queue('reviewqueue');
     #$result.='<br />Grade'.&show_queue('gradingqueue');      #$result.='<br />Grade'.&show_queue('gradingqueue');
  }   }
  # FIXME Blast! still need to reorg this, need to reshow the  
         #       queue being reviewed once done with the grade pass...   my ($todo,$status_code,$msg)=&get_key_todo($target);
         #       Hrrm, vaildation pass should perhaps say 'not_locked'  
         #       perhaps do a search if there is a key that is mine and if  
         #       there isn't reshow the queue....  
  my ($todo,$status_code)=&get_key_todo($target);  
   
  if ($todo) {   if ($todo) {
     &setup_env_for_other_user($todo,$safeeval);      &setup_env_for_other_user($todo,$safeeval);
     my ($symb,$uname,$udom)=&decode_queue_key($todo);      my ($symb,$uname,$udom)=&decode_queue_key($todo);
     $result.="\n".'<table><tr><td>Found '.      if ($env{'request.state'} eq 'construct') {
  &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';   $symb = $env{'request.uri'};
       }
       $result.="\n".'<p>'.
    &mt('Grading [_1] for [_2] at [_3]',
       &Apache::lonnet::gettitle($symb),$uname,$udom).'</p>';
     $form_tag_start.=      $form_tag_start.=
  '<input type="hidden" name="gradingkey" value="'.   '<input type="hidden" name="gradingkey" value="'.
  &Apache::lonnet::escape($todo).'" />';   &escape($todo).'" />';
     $Apache::bridgetask::queue_key=$todo;      $Apache::bridgetask::queue_key=$todo;
     &Apache::structuretags::initialize_storage();      &Apache::structuretags::initialize_storage();
     &Apache::lonhomework::showhash(%Apache::lonhomework::history);      &Apache::lonhomework::showhash(%Apache::lonhomework::history);
     if ($target eq 'webgrade') {      if ($target eq 'webgrade' && $status_code eq 'selected') {
  #$result.='<br />After -'.&show_queue($env{'form.queue'});   $form_tag_start.=
  $result.="\n".'<table width="100%" style="width:100%" border="1">';      '<input type="hidden" name="queuemode" value="selected" />';
  if ($status_code eq 'selected') {  
     $form_tag_start.=  
  '<input type="hidden" name="queuemode" value="selected" />';  
  }  
     }      }
  } else {   } else {
     if ($target eq 'webgrade') {      if ($target eq 'webgrade') {
  $result.="\n";   $result.="\n";
    my $back='<p><a href="/adm/flip?postdata=return:">'.
       &mt('Return to resource').'</a></p>';
  if      ($status_code eq 'stop') {   if      ($status_code eq 'stop') {
     $result.='<b>'.&mt("Stopped grading.").'</b>';      $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
    } elsif ($status_code eq 'cancel') {
       $result.='<b>'.&mt("Cancelled grading.").'</b>'.$back;
    } elsif ($status_code eq 'never_versioned') {
       $result.='<b>'.
    &mt("Requested user has never accessed the task.").
    '</b>'.$back;
    } elsif ($status_code =~ /still_open:(.*)/) {
       my $date = &Apache::lonlocal::locallocaltime($1);
       $result.='<b>'.
    &mt("Task is still open, will close at [_1].",$date).
    '</b>'.$back;
  } elsif ($status_code eq 'lock_failed') {   } elsif ($status_code eq 'lock_failed') {
     $result.='<b>'.&mt("Failed to lock the request record.").'</b>';      $result.='<b>'.&mt("Failed to lock the requested record.")
    .'</b>'.$back;
  } elsif ($status_code eq 'unlock') {   } elsif ($status_code eq 'unlock') {
     $result.='<b>'.&mt("Unlocked the requested record.").'</b>';      $result.='<b>'.&mt("Unlocked the requested record.")
    .'</b>'.$back;
     $result.=&show_queue($env{'form.queue'},1);      $result.=&show_queue($env{'form.queue'},1);
  } elsif ($status_code eq 'show_list') {   } elsif ($status_code eq 'show_list') {
     $result.=&show_queue($env{'form.queue'},1);      $result.=&show_queue($env{'form.queue'},1);
  } elsif ($status_code eq 'select_user') {   } elsif ($status_code eq 'select_user') {
     $result.=&select_user();      $result.=&select_user();
    } elsif ($status_code eq 'unable') {
       $result.='<b>'.&mt("Unable to aqcuire a user to grade.").'</b>'.$back;
    } elsif ($status_code eq 'not_allowed') {
       $result.='<b>'.&mt('Not allowed to grade the requested user.').' '.$msg.'</b>'.$back;
  } else {   } else {
     $result.='<b>'.&mt("No user to be graded.").'</b>';      $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
  }   }
     }      }
     $webgrade='no';      $webgrade='no';
     my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);   }
    if (!$todo || $env{'form.cancel'}) {
       my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
  }   }
  if ($target eq 'webgrade' && defined($env{'form.queue'})) {   if ($target eq 'webgrade' && defined($env{'form.queue'})) {
       if ($webgrade eq 'yes') {
    $result.=&submission_time_stamp();
       }
     $result.=$form_tag_start;      $result.=$form_tag_start;
     $result.='<input type="hidden" name="webgrade" value="'.      $result.='<input type="hidden" name="webgrade" value="'.
  $webgrade.'" />';   $webgrade.'" />';
Line 438  sub start_Task { Line 804  sub start_Task {
  $result.='<input type="hidden" name="regrade" value="'.   $result.='<input type="hidden" name="regrade" value="'.
     $env{'form.regrade'}.'" />';      $env{'form.regrade'}.'" />';
     }      }
       if ($env{'form.chosensections'}) {
    my @chosen_sections=
       &Apache::loncommon::get_env_multiple('form.chosensections');
    foreach my $sec (@chosen_sections) {
       $result.='<input type="hidden" name="chosensections" 
                                  value="'.$sec.'" />';
    }
       }
       if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
    } elsif ($target eq 'webgrade' 
    && $env{'request.state'} eq 'construct') {
       $result.=$form_tag_start;
       $result.='<input type="hidden" name="webgrade" value="'.
    $webgrade.'" />';
       $result.=&webgrade_standard_info();
    }
    if ($target eq 'webgrade') {
       $result.="\n".'<div id="LC_GRADING_criterialist">';
       &Apache::lonxml::startredirection();
       &start_delay();
       $dimension{$top}{'result'}=$result;
       undef($result);
    }
       } elsif ($target eq 'edit') {
    $result.=$form_tag_start.
       &Apache::structuretags::problem_edit_header();
    $Apache::lonxml::warnings_error_header=
       &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
    $result.= &Apache::edit::text_arg('Required number of passed optional elements to pass the Task:','OptionalRequired',$token,10)." <br />\n";
    $result.= &Apache::edit::insertlist($target,$token);
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'OptionalRequired');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
  }   }
     } else {      } else {
  # page_start returned a starting result, delete it if we don't need it   # page_start returned a starting result, delete it if we don't need it
Line 446  sub start_Task { Line 848  sub start_Task {
     return $result;      return $result;
 }  }
   
   sub get_task_end_time {
       my ($queue_entry,$symb,$udom,$uname) = @_;
   
       my $end_time;
       if (my $slot = &slotted_access($queue_entry)) {
    my %slot_data=&Apache::lonnet::get_slot($slot);
    $end_time = $slot_data{'endtime'};
       } else {
    $end_time = &Apache::lonhomework::due_date('0',$symb,
      $udom,$uname);
       }
       return $end_time;
   }
   
 sub get_key_todo {  sub get_key_todo {
     my ($target)=@_;      my ($target)=@_;
     my $todo;      my $todo;
   
       if ($env{'request.state'} eq 'construct') {
    my ($symb,$cid,$udom,$uname) = &Apache::lonnet::whichuser();
    my $gradingkey=&encode_queue_key($symb,$udom,$uname);
    return ($gradingkey);
       }
   
     if (defined($env{'form.reviewasubmission'})) {      if (defined($env{'form.reviewasubmission'})) {
  &Apache::lonxml::debug("review a submission....");   &Apache::lonxml::debug("review a submission....");
  $env{'form.queue'}='reviewqueue';   $env{'form.queue'}='reviewqueue';
Line 468  sub get_key_todo { Line 890  sub get_key_todo {
  return (undef,'select_user');   return (undef,'select_user');
     }      }
   
   
       my $me=$env{'user.name'}.':'.$env{'user.domain'};
   
       #need to try both queues..
       if (defined($env{'form.regradeaspecificsubmission'}) &&
    defined($env{'form.gradinguser'})               &&
    defined($env{'form.gradingdomain'})               ) {
    my ($symb,$cid)=&Apache::lonnet::whichuser();
    my $cnum  = $env{'course.'.$cid.'.num'};
    my $cdom  = $env{'course.'.$cid.'.domain'};
    my $uname = &LONCAPA::clean_username($env{'form.gradinguser'});
    my $udom  = &LONCAPA::clean_domain($env{'form.gradingdomain'});
   
    my $gradingkey=&encode_queue_key($symb,$udom,$uname);
   
    my $queue;
   
    if      (&in_queue('gradingqueue',$symb,$cdom,$cnum,$udom,$uname)) {
       $env{'form.queue'} = $queue = 'gradingqueue';
    } elsif (&in_queue('reviewqueue' ,$symb,$cdom,$cnum,$udom,$uname)) {
       $env{'form.queue'} = $queue = 'reviewqueue';
    }
   
    if (!$queue) {
       $env{'form.queue'} = $queue = 'none';
       #not queued so doing either a re or pre grade
       my %status = &Apache::lonnet::restore($symb,$cid,$udom,$uname);
       if ($status{'resource.0.version'} < 1) {
    return (undef,'never_versioned');
       }
       return ($gradingkey);
    }
   
    if ($queue) {
       my $queue_entry = &get_queue_data($queue,$udom,$uname);
   
       my $end_time = &get_task_end_time($queue_entry,$symb,
         $udom,$uname);
       if ($end_time > time) {
    return (undef,"still_open:$end_time");
       }
    }
   
    my $who=&queue_key_locked($queue,$gradingkey);
    if ($who eq $me) {
       #already have the lock
       $env{'form.gradingkey'}=&escape($gradingkey);
       &Apache::lonxml::debug("already locked");
       return ($gradingkey);
    }
   
    if (!defined($who)) {
       if (&lock_key($queue,$gradingkey)) {
    &Apache::lonxml::debug("newly locked");
    return ($gradingkey);
       } else {
    return (undef,'lock_failed');
       }
    }
   
    #otherwise (defined($who) && $who ne $me) some else has it...
    return (undef,'not_allowed',
    &mt('Another user ([_1]) currently has the record for [_2] locked.',
       $who,$env{'form.gradinguser'}.':'.$env{'form.gradingdomain'}));
       }
   
   
     my $queue=$env{'form.queue'};      my $queue=$env{'form.queue'};
   
     if (!defined($queue)) {      if (!defined($queue)) {
  $env{'form.queue'}=$queue='gradingqueue';   $env{'form.queue'}=$queue='gradingqueue';
     }      }
   
     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});      my $gradingkey=&unescape($env{'form.gradingkey'});
   
     if ($env{'form.queue'} eq 'none') {      if ($env{'form.queue'} eq 'none') {
  if (defined($env{'form.gradingkey'})) {   if (defined($env{'form.gradingkey'})) {
     if ($target eq 'webgrade') {      if ($target eq 'webgrade') {
  if ($env{'form.stop'}) {   if ($env{'form.stop'}) {
     return (undef,'stop');      return (undef,'stop');
    } elsif ($env{'form.cancel'}) {
       return (undef,'cancel');
  } elsif ($env{'form.next'}) {   } elsif ($env{'form.next'}) {
     return (undef,'show_list');      return (undef,'select_user');
  }   }
     }      }
     return ($gradingkey,'selected');      return ($gradingkey,'selected');
  } else {   } else {
     return (undef,'show_list');      return (undef,'select_user');
  }   }
     }      }
     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})      if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
Line 495  sub get_key_todo { Line 986  sub get_key_todo {
  && $env{'form.queuemode'} eq 'selected') {   && $env{'form.queuemode'} eq 'selected') {
   
  my $who=&queue_key_locked($queue,$gradingkey);   my $who=&queue_key_locked($queue,$gradingkey);
  my $me=$env{'user.name'}.'@'.$env{'user.domain'};  
  if ($who eq $me) {   if ($who eq $me) {
     &Apache::lonxml::debug("Found a key was given to me");      &Apache::lonxml::debug("Found a key was given to me");
     return ($gradingkey,'selected');      return ($gradingkey,'selected');
Line 527  sub get_key_todo { Line 1017  sub get_key_todo {
   
     if ($env{'form.queuemode'} ne 'selected') {      if ($env{'form.queuemode'} ne 'selected') {
  # don't get something new from the queue if they hit the stop button   # don't get something new from the queue if they hit the stop button
     if (!($env{'form.stop'} && $target eq 'webgrade')       if (!(($env{'form.cancel'} || $env{'form.stop'}) 
         && $target eq 'webgrade') 
     && !$env{'form.gradingaction'}) {      && !$env{'form.gradingaction'}) {
     &Apache::lonxml::debug("Getting anew $queue");      &Apache::lonxml::debug("Getting anew $queue");
     return (&get_from_queue($queue));      return (&get_from_queue($queue));
Line 538  sub get_key_todo { Line 1029  sub get_key_todo {
     return (undef,undef)      return (undef,undef)
 }  }
   
   sub minimize_storage {
       foreach my $key (keys(%Apache::lonhomework::results)) {
    if ($key =~ /regrader$/) { next; }
    if ($Apache::lonhomework::results{$key} eq
       $Apache::lonhomework::history{$key}) {
       delete($Apache::lonhomework::results{$key});
    }
       }
   }
   
 sub end_Task {  sub end_Task {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result='';      my $result='';
Line 545  sub end_Task { Line 1046  sub end_Task {
     my ($version,$previous)=&get_version();      my ($version,$previous)=&get_version();
     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||      if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex') {
  if (   if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
     (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||  
     ($target eq 'answer') || ($target eq 'tex')  
    ) {  
     if ($target eq 'web') {      if ($target eq 'web') {
  if (&show_task($status,$previous)) {   if (&show_task($status,$previous)) {
     $result.=&Apache::lonxml::endredirection();      $result.=&Apache::lonxml::endredirection();
  }   }
  if ($status eq 'CAN_ANSWER' && !$previous) {   if ($status eq 'CAN_ANSWER' && !$previous && 
       !$env{'form.donescreen'}) {
     $result.="\n".'<table border="1">'.      $result.="\n".'<table border="1">'.
  &Apache::inputtags::file_selector("$version.0",   &Apache::inputtags::file_selector("$version.0",
   "bridgetask","*",    "bridgetask","*",
Line 562  sub end_Task { Line 1061  sub end_Task {
 <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>  <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
 <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').  <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
   "</table>";    "</table>";
     $result.=&Apache::inputtags::gradestatus('0');  
  }   }
    if (!$previous && $status ne 'SHOW_ANSWER' &&
       &show_task($status,$previous)) {
       $result.=&Apache::inputtags::gradestatus('0',$target,1);
    }
   
    $result.='</form>';
   
    if (!$previous && $status ne 'SHOW_ANSWER' &&
       &show_task($status,$previous)) {
       my $action = &Apache::lonenc::check_encrypt($env{'request.uri'});
       $result.=<<DONEBUTTON;
   <form name="done" method="post" action="$action">
      <input type="hidden" name="donescreen" value="1" />
      <input type="submit" value="Done" />
   </form>
   DONEBUTTON
                   }
  if (&show_task($status,$previous) &&   if (&show_task($status,$previous) &&
     $Apache::lonhomework::history{"resource.$version.status"} =~ /^(pass|fail)$/) {      $Apache::lonhomework::history{"resource.$version.0.status"} =~ /^(pass|fail)$/) {
     my $bt_status=$Apache::lonhomework::history{"resource.$version.status"};      my $bt_status=$Apache::lonhomework::history{"resource.$version.0.status"};
     my $title=&Apache::lonnet::gettitle();      my $title=&Apache::lonnet::gettitle($env{'request.uri'});
     my %slot=&Apache::lonnet::get_slot($Apache::inputtags::slot_name);      my $start_time;
     my $start_time=  
  &Apache::lonlocal::locallocaltime($slot{'starttime'});      my $slot_name=
    $Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
       if ($slot_name) {
    my %slot=&Apache::lonnet::get_slot($slot_name);
   
     my $status;   $start_time=$slot{'starttime'}
     $status.="\n<div class='$bt_status'>\n";      } else {
    $start_time= 
       &Apache::lonnet::EXT('resource.0.opendate');
       }
       $start_time=&Apache::lonlocal::locallocaltime($start_time);
   
       my $status = 
    "\n<div class='LC_$bt_status LC_criteria LC_task_overall_status'>\n\t";
           
       my $dim = $top;
       my %counts = &get_counts($dim,undef,$parstack,
        $safeeval);
       my $question_status ="\n\t<p>".
    &question_status_message(\%counts,-1).
    "</p>\n";
   
     if ($bt_status eq 'pass')  {      if ($bt_status eq 'pass')  {
  $status.='<h2>You passed the '.$title.' given on '.   $status.='<h2>You passed the '.$title.' given on '.
     $start_time.'.</h2>';      $start_time.'</h2>';
    $status.=$question_status;
     }      }
     if ($bt_status eq 'fail')  {      if ($bt_status eq 'fail')  {
  $status.='<h2>You did not pass the '.$title.' given on '.   $status.='<h2>You did not pass the '.$title.' given on '.
     $start_time.'.</h2>';      $start_time.'</h2>';
    $status.=$question_status;
  if (!$previous) {   if (!$previous) {
     $status.=&add_request_another_attempt_button();      $status.=&add_request_another_attempt_button();
  }   }
     }      }
     my $man_count=0;      
     my $opt_count=0;      $status.="\n".'</div>'."\n";
     my $opt_passed=0;  
     foreach my $dim_id (@Apache::bridgetask::dimensionlist) {      foreach my $id (@{$dimension{$dim}{'criterias'}}) {
  if ($Apache::bridgetask::dimensionmandatory{$dim_id}   my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
     eq 'N') {   if ($type eq 'dimension') {
     $opt_count++;      $result.=$dimension{$id}{'result'};
     if ($Apache::lonhomework::history{"resource.$version.$dim_id.status"} eq 'pass') {      next;
  $opt_passed++;  
     }  
  } else {  
     $man_count++;  
  }   }
    my $criteria = 
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_]);
    $status .= &layout_web_Criteria($dim,$id,$criteria);
     }      }
     my $opt_req=&Apache::lonxml::get_param('OptionalRequired',  
  $parstack,$safeeval);  
     if ($opt_req !~ /\S/) { $opt_req='0'; }  
     $status.="\n<p>".&mt('You needed to pass all of the [_1]  mandatory components and [_2] of the [_3] optional components on the bridge task.',$man_count,$opt_req,$opt_count)."</p></div>\n";  
   
     my $internal_location=&internal_location();      my $internal_location=&internal_location();
     $result=~s/\Q$internal_location\E/$status/;      $result=~s/\Q$internal_location\E/$status/;
  }   }
     }    $result.="\n</div>\n".
     if ($target eq 'web' || $target eq 'webgrade') {      &Apache::loncommon::end_page({'discussion' => 1});
  $result.=&Apache::lonxml::xmlend().'</html>';  
     }      }
  }   }
  if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {  
    my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
    my %queue_data = ('type' => 'Task',
     'time' => time,);
    if (defined($Apache::inputtags::slot_name)) {
       $queue_data{'slot'} = $Apache::inputtags::slot_name;
    } elsif (defined($Apache::lonhomework::history{"resource.$version.0.checkedin.slot"})) {
       $queue_data{'slot'} = $Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
    }
   
   
    if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous
       && $status eq 'CAN_ANSWER') {
     my $award='SUBMITTED';      my $award='SUBMITTED';
     &Apache::essayresponse::file_submission("$version.0",'bridgetask',      &Apache::essayresponse::file_submission("$version.0",'bridgetask',
     'portfiles',\$award);      'portfiles',\$award);
Line 628  sub end_Task { Line 1169  sub end_Task {
     $award;      $award;
  $Apache::lonhomework::results{"resource.0.submission"}=   $Apache::lonhomework::results{"resource.0.submission"}=
     $Apache::lonhomework::results{"resource.$version.0.submission"}='';      $Apache::lonhomework::results{"resource.$version.0.submission"}='';
       } else {
    delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
    $award = '';
     }      }
     &Apache::lonhomework::showhash(%Apache::lonhomework::results);      &Apache::lonhomework::showhash(%Apache::lonhomework::results);
     &Apache::structuretags::finalize_storage();      &Apache::structuretags::finalize_storage();
     if ($award eq 'SUBMITTED') {      if ($award eq 'SUBMITTED') {
  &add_to_queue('gradingqueue',$Apache::inputtags::slot_name);   &add_to_queue('gradingqueue',\%queue_data);
     }      }
  }   }
  if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {   if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes' 
       && exists($env{'form.cancel'})) {
       &check_queue_unlock($env{'form.queue'});
       &Apache::lonxml::debug(" cancelled grading .".$env{'form.queue'});
    } elsif ($target eq 'grade' && $env{'form.webgrade'} eq 'yes' 
    && !exists($env{'form.cancel'})) {
     my $optional_required=      my $optional_required=
  &Apache::lonxml::get_param('OptionalRequired',$parstack,   &Apache::lonxml::get_param('OptionalRequired',$parstack,
    $safeeval);     $safeeval);
Line 644  sub end_Task { Line 1193  sub end_Task {
     my $ungraded=0;      my $ungraded=0;
     my $review=0;         my $review=0;   
     &Apache::lonhomework::showhash(%Apache::lonhomework::results);      &Apache::lonhomework::showhash(%Apache::lonhomework::results);
     foreach my $dim_id (@Apache::bridgetask::dimensionlist) {      my $dim = $top;
       foreach my $id (@{$dimension{$dim}{'criterias'}}) {
    my $link=&link($id);
   
    my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
   
    if ($type eq 'criteria') {
       # dimensional 'criteria' don't get assigned grades
       $Apache::lonhomework::results{"resource.$version.0.$id.status"}=$env{'form.HWVAL_'.$link};
       $Apache::lonhomework::results{"resource.$version.0.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
    } 
  my $status=   my $status=
     $Apache::lonhomework::results{"resource.$version.$dim_id.status"};      $Apache::lonhomework::results{"resource.$version.0.$id.status"};
  my $mandatory=   my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
     ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');  
  if ($status eq 'pass') {   if ($status eq 'pass') {
     if (!$mandatory) { $optional_passed++; }      if (!$mandatory) { $optional_passed++; }
  } elsif ($status eq 'fail') {   } elsif ($status eq 'fail') {
     if ($mandatory) { $mandatory_failed++; }      if ($mandatory) { $mandatory_failed++; }
  } elsif ($status eq 'ungraded') {  
     $ungraded++;  
  } elsif ($status eq 'review') {   } elsif ($status eq 'review') {
     $review++;      $review++;
    } elsif ($status eq 'ungraded') {
       $ungraded++;
  } else {   } else {
     $ungraded++;      $ungraded++;
  }   }
Line 664  sub end_Task { Line 1223  sub end_Task {
     if ($optional_passed < $optional_required) {      if ($optional_passed < $optional_required) {
  $mandatory_failed++;   $mandatory_failed++;
     }      }
     &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");      &Apache::lonxml::debug(" task results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
     $Apache::lonhomework::results{'resource.grader'}=      $Apache::lonhomework::results{'resource.0.regrader'}=
  $env{'user.name'}.'@'.$env{'user.domain'};   $env{'user.name'}.':'.$env{'user.domain'};
     if ($review) {      if ($review) {
  $Apache::lonhomework::results{"resource.$version.status"}='review';   $Apache::lonhomework::results{"resource.$version.0.status"}='review';
  if ($env{'form.queue'} eq 'reviewqueue') {  
     &check_queue_unlock($env{'form.queue'});  
     &Apache::lonxml::debug(" still needs review not changing status.");  
  } else {  
     &move_between_queues($env{'form.queue'},'reviewqueue');  
  }  
     } elsif ($ungraded) {      } elsif ($ungraded) {
  $Apache::lonhomework::results{"resource.$version.status"}='ungraded';   $Apache::lonhomework::results{"resource.$version.0.status"}='ungraded';
  if ($env{'form.queue'} eq 'reviewqueue' ||  
     $env{'form.queue'} eq 'none' ) {  
     &Apache::lonxml::debug("moving back.");  
     &move_between_queues($env{'form.queue'},'gradingqueue');  
  } else {  
     &check_queue_unlock($env{'form.queue'});  
  }  
     } elsif ($mandatory_failed) {      } elsif ($mandatory_failed) {
  $Apache::lonhomework::results{"resource.$version.status"}='fail';   $Apache::lonhomework::results{"resource.$version.0.status"}='fail';
  $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';   $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
  $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';   $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
  $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';   $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
  &remove_from_queue($env{'form.queue'});    my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
   
  my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();  
   
  if ($env{'form.regrade'} ne 'yes') {   if ($env{'form.regrade'} ne 'yes') {
     $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=      $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
Line 703  sub end_Task { Line 1247  sub end_Task {
        ["$version.0.bridgetask"]);         ["$version.0.bridgetask"]);
  }   }
     } else {      } else {
  $Apache::lonhomework::results{"resource.$version.status"}='pass';   $Apache::lonhomework::results{"resource.$version.0.status"}='pass';
  $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';   $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
  $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';   $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
  $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';   $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
  &remove_from_queue($env{'form.queue'});   my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
   
  my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();  
  if ($env{'form.regrade'} ne 'yes') {   if ($env{'form.regrade'} ne 'yes') {
     $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=      $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
  $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};   $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
Line 720  sub end_Task { Line 1262  sub end_Task {
        ["$version.0.bridgetask"]);         ["$version.0.bridgetask"]);
  }   }
     }      }
     $Apache::lonhomework::results{"resource.status"}=      $Apache::lonhomework::results{"resource.0.status"}=
  $Apache::lonhomework::results{"resource.$version.status"};   $Apache::lonhomework::results{"resource.$version.0.status"};
     if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {      if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
  $Apache::lonhomework::results{"resource.0.award"}=   $Apache::lonhomework::results{"resource.0.award"}=
     $Apache::lonhomework::results{"resource.$version.0.award"};      $Apache::lonhomework::results{"resource.$version.0.award"};
Line 730  sub end_Task { Line 1272  sub end_Task {
  $Apache::lonhomework::results{"resource.0.solved"}=   $Apache::lonhomework::results{"resource.0.solved"}=
     $Apache::lonhomework::results{"resource.$version.0.solved"};      $Apache::lonhomework::results{"resource.$version.0.solved"};
     }      }
       &minimize_storage();
       &Apache::structuretags::finalize_storage();
       
       # data stored, now handle queue
       if ($review) {
    if ($env{'form.queue'} eq 'reviewqueue') {
       &check_queue_unlock($env{'form.queue'});
       &Apache::lonxml::debug(" still needs review not changing status.");
    } else {
       if ($env{'form.queue'} ne 'none') {
    &move_between_queues($env{'form.queue'},'reviewqueue');
       } else {
    &add_to_queue('reviewqueue',\%queue_data);
       }
    }
       } elsif ($ungraded) {
    if ($env{'form.queue'} eq 'reviewqueue') {
       &Apache::lonxml::debug("moving back.");
       &move_between_queues($env{'form.queue'},
    'gradingqueue');
    } elsif ($env{'form.queue'} eq 'none' ) {
       &add_to_queue('gradingqueue',\%queue_data);
    } else {
       &check_queue_unlock($env{'form.queue'});
    }
       } elsif ($mandatory_failed) {
    &remove_from_queue($env{'form.queue'}); 
       } else {
    &remove_from_queue($env{'form.queue'});
       }
    }
    if (exists($Apache::lonhomework::results{'INTERNAL_store'})) {
       # instance generation occured and hasn't yet been stored
     &Apache::structuretags::finalize_storage();      &Apache::structuretags::finalize_storage();
  }   }
     } elsif ($target eq 'webgrade') {      } elsif ($target eq 'webgrade') {
  $result.="</table>\n<hr />";   if (&nest()) {
       &Apache::lonxml::endredirection();
       &end_delay();
       $result.=$dimension{$top}{'result'};
    } else {
       $result.=&Apache::lonxml::endredirection();
    }
    my $dim = $top;
    foreach my $id (@{$dimension{$dim}{'criterias'}} ) {
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       if ($type eq 'dimension') {
    # dimensional 'criteria' don't get assigned grades
    next;
       } else {
    my $criteria =&nested_parse(\$dimension{$dim}{'criteria.'.$id},
        [@_]);
    $criteria = &layout_webgrade_Criteria($dim,$id,$criteria);
    my $internal_location=&internal_location($id);
    if ($result =~ m/\Q$internal_location\E/) {
       $result=~s/\Q$internal_location\E/$criteria/;
    } else {
       $result.=$criteria;
    }
   
       }
    }
           $result.="</div>";
  #$result.='<input type="submit" name="next" value="'.   #$result.='<input type="submit" name="next" value="'.
  #    &mt('Save &amp; Next').'" /> ';   #    &mt('Save &amp; Next').'" /> ';
  #$result.='<input type="submit" name="end" value="'.   #$result.='<input type="submit" name="end" value="'.
Line 742  sub end_Task { Line 1343  sub end_Task {
  #    &mt('Throw Away &amp; Stop Grading').'" /> ';   #    &mt('Throw Away &amp; Stop Grading').'" /> ';
  #$result.='<input type="submit" name="save" value="'.   #$result.='<input type="submit" name="save" value="'.
  #    &mt('Save Partial Grade and Continue Grading').'" /> ';   #    &mt('Save Partial Grade and Continue Grading').'" /> ';
  $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';   $result.='</form>'."\n</div>\n</div>\n".
       &Apache::loncommon::end_page();
     } elsif ($target eq 'meta') {      } elsif ($target eq 'meta') {
  $result.='<parameter part="0" package="Task"></parameter>'."\n";   $result.=&Apache::response::meta_package_write('Task');
  #$result.=&Apache::response::meta_part_order();          $result.=&Apache::response::meta_stores_write('solved','string',
  #$result.=&Apache::response::meta_response_order();        'Problem Status');
    $result.=&Apache::response::meta_stores_write('tries','int_zeropos',
         'Number of Attempts');
    $result.=&Apache::response::meta_stores_write('awarded','float',
         'Partial Credit Factor');
    $result.=&Apache::response::meta_stores_write('status','string',
         'Bridge Task Status');
       } elsif ($target eq 'edit') {
    $result.= &Apache::structuretags::problem_edit_footer();
     }      }
       &Apache::structuretags::reset_problem_globals('Task');
     undef($Apache::lonhomework::parsing_a_task);      undef($Apache::lonhomework::parsing_a_task);
     return $result;      return $result;
 }  }
Line 761  sub move_between_queues { Line 1372  sub move_between_queues {
     } else {      } else {
  $cur_data = ['none'];   $cur_data = ['none'];
     }      }
     my $result=&add_to_queue($dest_queue,$cur_data->[0]);      my $result=&add_to_queue($dest_queue,$cur_data);
     if ($result ne 'ok') {      if ($result ne 'ok') {
  return $result;   return $result;
     }      }
Line 772  sub move_between_queues { Line 1383  sub move_between_queues {
 sub check_queue_unlock {  sub check_queue_unlock {
     my ($queue,$key,$allow_not_me)=@_;      my ($queue,$key,$allow_not_me)=@_;
     if ($queue eq 'none') { return 'ok'; }      if ($queue eq 'none') { return 'ok'; }
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
     if (!defined($key)) {      if (!defined($key)) {
  $key="$symb\0queue\0$uname\@$udom";   $key="$symb\0queue\0$uname:$udom";
     }      }
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my $me=$env{'user.name'}.'@'.$env{'user.domain'};      my $me=$env{'user.name'}.':'.$env{'user.domain'};
     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);      my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
     if  ($who eq $me) {      if  ($who eq $me) {
    &Apache::lonxml::debug("unlocking my own $who");
  return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);   return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
     } elsif ($allow_not_me) {      } elsif ($allow_not_me) {
  &Apache::lonxml::debug("unlocking $who by $me");   &Apache::lonxml::debug("unlocking $who by $me");
Line 789  sub check_queue_unlock { Line 1401  sub check_queue_unlock {
     return 'not_owner';      return 'not_owner';
 }  }
   
   sub in_queue {
       my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
       if ($queue eq 'none') { return 0; }
       if (!defined($symb) || !defined($cdom) || !defined($cnum)
    || !defined($udom) || !defined($uname)) {
    ($symb,my $cid,$udom,$uname)=&Apache::lonnet::whichuser();
    $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
   
       my $key=&encode_queue_key($symb,$udom,$uname);
       my %results = &Apache::lonnet::get($queue,[$key],$cdom,$cnum);
   
       if (defined($results{$key})) {
    return 1;
       }
       return 0;
   }
   
 sub remove_from_queue {  sub remove_from_queue {
     my ($queue)=@_;      my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
     if ($queue eq 'none') { return 'ok'; }      if ($queue eq 'none') { return 'ok'; }
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      if (!defined($symb) || !defined($cdom) || !defined($cnum)
     my $cnum=$env{'course.'.$cid.'.num'};   || !defined($udom) || !defined($uname)) {
     my $cdom=$env{'course.'.$cid.'.domain'};   ($symb,my $cid,$udom,$uname)=&Apache::lonnet::whichuser();
     my $key="$symb\0queue\0$uname\@$udom";   $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
       if (!&in_queue($queue,$symb,$cdom,$cnum,$udom,$uname)) {
    return 'ok';
       }
       my $key=&encode_queue_key($symb,$udom,$uname);
     my @keys=($key,"$key\0locked");      my @keys=($key,"$key\0locked");
     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);      return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
 }  }
Line 812  sub setup_env_for_other_user { Line 1449  sub setup_env_for_other_user {
 }  }
   
 sub get_queue_data {  sub get_queue_data {
     my ($queue)=@_;      my ($queue,$udom,$uname)=@_;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$other_udom,$other_uname)=&Apache::lonnet::whichuser();
       if (!$uname || !$udom) {
    $uname=$other_uname;
    $udom =$other_udom;
       }
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my $todo="$symb\0queue\0$uname\@$udom";      my $todo="$symb\0queue\0$uname:$udom";
     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);      my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
     if ($key eq $todo && ref($value)) {      if ($key eq $todo && ref($value)) {
  return $value;   return $value;
Line 824  sub get_queue_data { Line 1465  sub get_queue_data {
     return undef;      return undef;
 }  }
   
   
 sub check_queue_for_key {  sub check_queue_for_key {
     my ($cid,$queue,$todo)=@_;      my ($cdom,$cnum,$queue,$todo)=@_;
     my $cnum=$env{'course.'.$cid.'.num'};  
     my $cdom=$env{'course.'.$cid.'.domain'};  
     my %results=      my %results=
  &Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);   &Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
           
Line 835  sub check_queue_for_key { Line 1476  sub check_queue_for_key {
  if (defined($results{"$todo\0locked"})) {   if (defined($results{"$todo\0locked"})) {
     return 'locked';      return 'locked';
  }   }
    if (my $slot=&slotted_access($results{$todo})) {
       my %slot_data=&Apache::lonnet::get_slot($slot);
       if ($slot_data{'endtime'} > time) { 
    return 'in_progress';
       }
    } else {
       my ($symb) = &decode_queue_key($todo);
       my $due_date = &Apache::lonhomework::due_date('0',$symb);
       if ($due_date > time) {
    return 'in_progress';
       }
    }
  return 'enqueued';   return 'enqueued';
     }      }
     return undef;      return undef;
 }  }
   
 sub add_to_queue {  sub add_to_queue {
     my ($queue,$slot_name)=@_;      my ($queue,$user_data)=@_;
     if ($queue eq 'none') { return 'ok'; }      if ($queue eq 'none') { return 'ok'; }
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
       if (!$cid || $env{'request.state'} eq 'construct') {
    return 'no_queue';
       }
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my %data;      my %data;
     $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];      $data{"$symb\0queue\0$uname:$udom"}=$user_data;
     return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);      return &Apache::lonnet::cput($queue,\%data,$cdom,$cnum);
   }
   
   sub get_limited_classlist {
       my ($sections) = @_;
   
       my $classlist = &Apache::loncoursedata::get_classlist();
       foreach my $student (keys(%$classlist)) {
    if ( $classlist->{$student}[&Apache::loncoursedata::CL_STATUS()]
        ne 'Active') {
       delete($classlist->{$student});
           }
       }
   
       if (ref($sections) && !grep('all',@{ $sections })) {
    foreach my $student (keys(%$classlist)) {
       my $section  = 
    $classlist->{$student}[&Apache::loncoursedata::CL_SECTION()];
       if (! grep($section,@{ $sections })) {
    delete($classlist->{$student});
       }
    }
       }
       return $classlist;
 }  }
   
   
 sub show_queue {  sub show_queue {
     my ($queue,$with_selects)=@_;      my ($queue,$with_selects)=@_;
     my $result;      my $result;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
   
       my @chosen_sections=
    &Apache::loncommon::get_env_multiple('form.chosensections');
   
       my $classlist = &get_limited_classlist(\@chosen_sections);
   
       if (!(grep(/^all$/,@chosen_sections))) {
    $result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
       '</tt>.</p> '."\n";
       }
   
       my ($view,$view_section);
       my $scope = $env{'request.course.id'};
       if (!($view=&Apache::lonnet::allowed('vgr',$scope))) {
    $scope .= '/'.$env{'request.course.sec'};
    if ( $view = &Apache::lonnet::allowed('vgr',$scope)) {
       $view_section=$env{'request.course.sec'};
    } else {
       undef($view);
    }
       }
   
     my $regexp="^$symb\0";      my $regexp="^$symb\0";
     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);      my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
     my ($tmp)=%queue;      my ($tmp)=%queue;
     if ($tmp=~/^error: 2 /) {      if ($tmp=~/^error: 2 /) {
  return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";   return "\n<h3>Current Queue - $queue</h3>".
     }      &Apache::loncommon::start_data_table().
     $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";      &Apache::loncommon::start_data_table_row().
     if ($with_selects) { $result.="<th></th>"; }      '<td>'.&mt('Empty').'</td>'.
     $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";      &Apache::loncommon::end_data_table_row().
       &Apache::loncommon::end_data_table();
       }
       my $title=&Apache::lonnet::gettitle($symb);
       $result.="\n<h3>Current Queue - $title $queue </h3>".
    &Apache::loncommon::start_data_table().
    &Apache::loncommon::start_data_table_header_row();
       if ($with_selects) { $result.="<th>Status</th><th></th>"; }
       $result.="<th>user</th><th>data</th>".
    &Apache::loncommon::end_data_table_header_row();
     foreach my $key (sort(keys(%queue))) {      foreach my $key (sort(keys(%queue))) {
    my ($symb,$uname,$udom) = &decode_queue_key($key);
    if (!defined($classlist->{$uname.':'.$udom})) { next; }
   
    my $section = $classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_SECTION()];
   
    my $can_view=1;
    if (!$view
       || ($view_section && !$section)
       || ($view_section && $section && ($view_section ne $section))) {
       $can_view=0;
    }
   
  if ($key=~/locked$/ && !$with_selects) {   if ($key=~/locked$/ && !$with_selects) {
     my ($symb,$uname,$udom) = &decode_queue_key($key);      $result.= &Apache::loncommon::start_data_table_row().
     my $title=&Apache::lonnet::gettitle($symb);   "<td>$uname</td>";
     $result.="<tr><td>$title</td><td>$uname</td>";      $result.='<td>'.$queue{$key}.'</td></tr>';
     $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';  
  } elsif ($key=~/timestamp$/ && !$with_selects) {   } elsif ($key=~/timestamp$/ && !$with_selects) {
     my ($symb,undef) = split("\0",$key);      $result.=&Apache::loncommon::start_data_table_row()."<td></td>";
     my $title=&Apache::lonnet::gettitle($symb);      $result.='<td>'.
     $result.="<tr><td>$title</td><td></td>";  
     $result.='<td>last queue modification time</td><td>'.  
  &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";   &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
  } elsif ($key!~/(timestamp|locked)$/) {   } elsif ($key!~/(timestamp|locked)$/) {
     my ($symb,$uname,$udom) = &decode_queue_key($key);      $result.= &Apache::loncommon::start_data_table_row();
     my $title=&Apache::lonnet::gettitle($symb);      my ($end_time,$slot_text);
     $result.="<tr>";      if (my $slot=&slotted_access($queue{$key})) {
     my $slot=$queue{$key}->[0];   my %slot_data=&Apache::lonnet::get_slot($slot);
     my %slot_data=&Apache::lonnet::get_slot($slot);   $end_time = $slot_data{'endtime'};
    $slot_text = &mt('Slot: [_1]',$slot);
       } else {
    $end_time = &Apache::lonhomework::due_date('0',$symb);
    $slot_text = '';
       }
     if ($with_selects) {      if ($with_selects) {
  my $ekey=&Apache::lonnet::escape($key);   my $ekey=&escape($key);
  my ($action,$description)=('select',&mt('Select'));   my ($action,$description,$status)=('select',&mt('Select'));
  if (exists($queue{"$key\0locked"})) {   if (exists($queue{"$key\0locked"})) {
     my $me=$env{'user.name'}.'@'.$env{'user.domain'};      my ($locker,$time) = 
     if ($me eq $queue{"$key\0locked"}) {   &get_lock_info($queue{"$key\0locked"});
       if ($time) {
    $time = 
       &Apache::lonnavmaps::timeToHumanString($time,
      'start');
       }
       my $me=$env{'user.name'}.':'.$env{'user.domain'};
       $status=&mt('Locked by <tt>[_1]</tt> [_2]',$locker,$time);
       if ($me eq $locker) {
  ($action,$description)=('resume',&mt('Resume'));   ($action,$description)=('resume',&mt('Resume'));
     } else {      } else {
  ($action,$description)=('unlock',&mt('Unlock'));   ($action,$description)=('unlock',&mt('Unlock'));
     }      }
  }   }
  if (time > $slot_data{'endtime'}) {   my $seclist;
    foreach my $sec (@chosen_sections) {
       $seclist.='<input type="hidden" name="chosensections" 
                                  value="'.$sec.'" />';
    }
    if ($can_view && ($end_time ne '' && time > $end_time)) {
     $result.=(<<FORM);      $result.=(<<FORM);
   <td>$status</td>
 <td>  <td>
 <form method="POST">  <form style="display: inline" method="post">
  <input type="hidden" name="gradingkey" value="$ekey" />   <input type="hidden" name="gradingkey" value="$ekey" />
  <input type="hidden" name="queue" value="$queue" />   <input type="hidden" name="queue" value="$queue" />
  <input type="hidden" name="gradingaction" value="$action" />   <input type="hidden" name="gradingaction" value="$action" />
  <input type="hidden" name="webgrade" value="no" />   <input type="hidden" name="webgrade" value="no" />
  <input type="hidden" name="queuemode" value="selected" />   <input type="hidden" name="queuemode" value="selected" />
  <input type="submit" name="submit" value="$description" />   <input type="submit" name="submit" value="$description" />
    $seclist
 </form>  </form>
 </td>  </td>
 FORM  FORM
                   } elsif (!$can_view && ($end_time ne '' && time > $end_time)) {
       $result.='<td>'.&mt("Not gradable").'</td><td>&nbsp;</td>'
                 } else {                  } else {
     $result.='<td>'.&mt("In Progress").'</td>'      $result.='<td>'.&mt("In Progress").'</td><td>&nbsp;</td>'
  }   }
     }      }
     $result.="<td>$title</td><td>$uname</td>";      $result.= "<td>".$classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_FULLNAME()].
     $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.   " <tt>($uname:$udom)</tt> </td>";
  &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).      $result.='<td>'.$slot_text.' End time: '.
  "</td></tr>";   &Apache::lonlocal::locallocaltime($end_time).
    "</td>".&Apache::loncommon::end_data_table_row();
  }   }
     }      }
     $result.="</table><hr />\n";      $result.= &Apache::loncommon::end_data_table()."<hr />\n";
     return $result;      return $result;
 }  }
   
 sub get_queue_counts {  sub get_queue_counts {
     my ($queue)=@_;      my ($queue)=@_;
     my $result;      my $result;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
   
       my $classlist=&get_limited_classlist();
   
     my $regexp="^$symb\0";      my $regexp="^$symb\0";
     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);      my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
     my ($tmp)=%queue;      my ($tmp)=%queue;
Line 936  sub get_queue_counts { Line 1681  sub get_queue_counts {
  return (0,0,0);   return (0,0,0);
     }      }
     my ($entries,$ready_to_grade,$locks)=(0,0,0);      my ($entries,$ready_to_grade,$locks)=(0,0,0);
       my %slot_cache;
     foreach my $key (sort(keys(%queue))) {      foreach my $key (sort(keys(%queue))) {
    my ($symb,$uname,$udom) = &decode_queue_key($key);
    if (!defined($classlist->{$uname.':'.$udom})) { next; }
  if ($key=~/locked$/) {   if ($key=~/locked$/) {
     $locks++;      $locks++;
  } elsif ($key=~/timestamp$/) {   } elsif ($key=~/timestamp$/) {
     #ignore      #ignore
  } elsif ($key!~/(timestamp|locked)$/) {   } elsif ($key!~/(timestamp|locked)$/) {
     my ($symb,$uname,$udom) = &decode_queue_key($key);  
     $entries++;      $entries++;
     my $slot=$queue{$key}->[0];      if (my $slot=&slotted_access($queue{$key})) {
     my %slot_data=&Apache::lonnet::get_slot($slot);   if (!exists($slot_cache{$slot})) {
     if (time > $slot_data{'endtime'}) {      my %slot_data=&Apache::lonnet::get_slot($slot);
  $ready_to_grade++;      $slot_cache{$slot} = \%slot_data;
    }
    if (time > $slot_cache{$slot}{'endtime'}) {
       $ready_to_grade++;
    }
       } else {
    my $due_date = &Apache::lonhomework::due_date('0',$symb);
    if ($due_date ne '' && time > $due_date) {
       $ready_to_grade++;
    }
     }      }
  }   }
     }      }
Line 956  sub get_queue_counts { Line 1712  sub get_queue_counts {
   
 sub encode_queue_key {  sub encode_queue_key {
     my ($symb,$udom,$uname)=@_;      my ($symb,$udom,$uname)=@_;
     return "$symb\0queue\0$uname\@$udom";      return "$symb\0queue\0$uname:$udom";
 }  }
   
 sub decode_queue_key {  sub decode_queue_key {
     my ($key)=@_;      my ($key)=@_;
     my ($symb,undef,$user) = split("\0",$key);      my ($symb,undef,$user) = split("\0",$key);
     my ($uname,$udom) = split('@',$user);      my ($uname,$udom) = split(':',$user);
     return ($symb,$uname,$udom);      return ($symb,$uname,$udom);
 }  }
   
 sub queue_key_locked {  sub queue_key_locked {
     my ($queue,$key,$cdom,$cnum)=@_;      my ($queue,$key,$cdom,$cnum)=@_;
     if (!defined($cdom) || !defined($cnum)) {      if (!defined($cdom) || !defined($cnum)) {
  my (undef,$cid)=&Apache::lonxml::whichuser();   my (undef,$cid)=&Apache::lonnet::whichuser();
  $cnum=$env{'course.'.$cid.'.num'};   $cnum=$env{'course.'.$cid.'.num'};
  $cdom=$env{'course.'.$cid.'.domain'};   $cdom=$env{'course.'.$cid.'.domain'};
     }      }
     my ($key_locked,$value)=      my ($key_locked,$value)=
  &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);   &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
     if ($key_locked eq "$key\0locked") {      if ($key_locked eq "$key\0locked") {
  return $value;   return &get_lock_info($value);
       }
       return undef;
   }
   
   sub slotted_access {
       my ($queue_entry) = @_;
       if (ref($queue_entry) eq 'ARRAY') {
    if (defined($queue_entry->[0])) {
       return $queue_entry->[0];
    }
    return undef;
       } elsif (ref($queue_entry) eq 'HASH') {
    if (defined($queue_entry->{'slot'})) {
       return $queue_entry->{'slot'};
    }
    return undef;
     }      }
     return undef;      return undef;
 }  }
   
 sub pick_from_queue_data {  sub pick_from_queue_data {
     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;      my ($queue,$check_section,$queuedata,$cdom,$cnum,$classlist)=@_;
       my @possible; # will hold queue entries that are valid to be selected
     foreach my $key (keys(%$queuedata)) {      foreach my $key (keys(%$queuedata)) {
    if ($key =~ /\0locked$/) { next; }
    if ($key =~ /\0timestamp$/) { next; }
   
  my ($symb,$uname,$udom)=&decode_queue_key($key);   my ($symb,$uname,$udom)=&decode_queue_key($key);
    if (!defined($classlist->{$uname.':'.$udom})) { next; }
   
  if ($check_section) {   if ($check_section) {
     my $section=&Apache::lonnet::getsection($uname,$udom);      my $section =
    $classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_SECTION()];
     if ($section eq $check_section) {      if ($section eq $check_section) {
  &Apache::lonxml::debug("my sec");   &Apache::lonxml::debug("my sec");
  next;   next;
     }      }
  }   }
  my $slot=$queuedata->{$key}[0];   my $end_time;
  my %slot_data=&Apache::lonnet::get_slot($slot);   if (my $slot=&slotted_access($queuedata->{$key})) {
  if ($slot_data{'endtime'} > time) {       &Apache::lonxml::debug("looking at slot $slot");
     &Apache::lonxml::debug("not time");      my %slot_data=&Apache::lonnet::get_slot($slot);
     next;      if ($slot_data{'endtime'} < time) { 
    $end_time = $slot_data{'endtime'};
       } else {
    &Apache::lonxml::debug("not time ".$slot_data{'endtime'});
    next;
       }
    } else {
       my $due_date = &Apache::lonhomework::due_date('0',$symb);
       if ($due_date < time) {
    $end_time = $due_date;
       } else {
    &Apache::lonxml::debug("not time $due_date");
    next;
       }
  }   }
  if (&queue_key_locked($queue,$key,$cdom,$cnum)) {  
    if (exists($queuedata->{"$key\0locked"})) {
     &Apache::lonxml::debug("someone already has um.");      &Apache::lonxml::debug("someone already has um.");
     next;      next;
  }   }
  return $key;   push(@possible,[$key,$end_time]);
       }
       if (@possible) {
           # sort entries in order by slot end time
    @possible = sort { $a->[1] <=> $b->[1] } @possible;
    # pick one of the entries in the top 10% in small queues and one
    # of the first ten entries in large queues
    #my $ten_percent = int($#possible * 0.1);
    #if ($ten_percent < 1 ) { $ten_percent = 1;  }
    #if ($ten_percent > 10) { $ten_percent = 10; }
    #my $max=($#possible < $ten_percent) ? $#possible : $ten_percent;
   
    #return $possible[int(rand($max))][0];
    return $possible[0][0];
     }      }
     return undef;      return undef;
 }  }
   
   sub get_lock_info {
       my ($lock_info) = @_;
       if (wantarray) {
    if (ref($lock_info) eq 'ARRAY') {
       return @{$lock_info};
    } else {
       return ($lock_info);
    }
       } else {
    if (ref($lock_info) eq 'ARRAY') {
       return $lock_info->[0];
    } else {
       return $lock_info;
    }
       }
       return;
   }
   
 sub find_mid_grade {  sub find_mid_grade {
     my ($queue,$symb,$cdom,$cnum)=@_;      my ($queue,$symb,$cdom,$cnum)=@_;
     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});      my $todo=&unescape($env{'form.gradingkey'});
     my $me=$env{'user.name'}.'@'.$env{'user.domain'};      my $me=$env{'user.name'}.':'.$env{'user.domain'};
     if ($todo) {      if ($todo) {
  my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);   my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
  if ($who eq $me) { return $todo; }   if ($who eq $me) { return $todo; }
Line 1018  sub find_mid_grade { Line 1842  sub find_mid_grade {
     my $regexp="^$symb\0.*\0locked\$";      my $regexp="^$symb\0.*\0locked\$";
     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);      my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
     foreach my $key (keys(%locks)) {      foreach my $key (keys(%locks)) {
  my $who=$locks{$key};   my $who= &get_lock_info($locks{$key});
  if ($who eq $me) {   if ($who eq $me) {
     $todo=$key;      $todo=$key;
     $todo=~s/\0locked$//;      $todo=~s/\0locked$//;
Line 1030  sub find_mid_grade { Line 1854  sub find_mid_grade {
   
 sub lock_key {  sub lock_key {
     my ($queue,$todo)=@_;      my ($queue,$todo)=@_;
     my $me=$env{'user.name'}.'@'.$env{'user.domain'};      my $me=$env{'user.name'}.':'.$env{'user.domain'};
     my (undef,$cid)=&Apache::lonxml::whichuser();      my (undef,$cid)=&Apache::lonnet::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},      my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> [$me,time]},
  $cdom,$cnum);   $cdom,$cnum);
     &Apache::lonxml::debug("success $success $todo");      &Apache::lonxml::debug("success $success $todo");
     if ($success eq 'ok') {      if ($success eq 'ok') {
Line 1043  sub lock_key { Line 1867  sub lock_key {
     return 0;      return 0;
 }  }
   
   sub get_queue_symb_status {
       my ($queue,$symb,$cdom,$cnum) = @_;
       if (!defined($cdom) || !defined($cnum)) {
    my (undef,$cid)=&Apache::lonnet::whichuser();
    $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
       my $classlist=&get_limited_classlist();
   
       my $regexp="^$symb\0";
       my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
       my ($tmp)=%queue;
       if ($tmp=~/^error: 2 /) { return; }
       my @users;
       foreach my $key (sort(keys(%queue))) {
    next if ($key=~/locked$/);
    next if ($key=~/timestamp$/);
    my ($symb,$uname,$udom) = &decode_queue_key($key);
    next if (!defined($classlist->{$uname.':'.$udom}));
    push(@users,"$uname:$udom");
       }
       return @users;
   }
   
 sub get_from_queue {  sub get_from_queue {
     my ($queue)=@_;      my ($queue)=@_;
     my $result;      my $result;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);      my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));      &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
     if ($todo) { return $todo; }      if ($todo) { return $todo; }
       my $attempts=0;
   
       my $classlist=&get_limited_classlist();
   
     while (1) {      while (1) {
    if ($attempts > 2) {
       # tried twice to get a queue entry, giving up
       return (undef,'unable');
    }
  my $starttime=time;   my $starttime=time;
  &Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},   &Apache::lonnet::cput($queue,{"$symb\0timestamp"=>$starttime},
      $cdom,$cnum);        $cdom,$cnum);
  &Apache::lonxml::debug("$starttime");   &Apache::lonxml::debug("$starttime");
  my $regexp="^$symb\0queue\0";   my $regexp="^$symb\0queue\0";
    #my $range= ($attempts < 1 ) ? '0-100' : '0-400';
   
  my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);   my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
  #make a pass looking for a user _not_ in my section   #make a pass looking for a user _not_ in my section
  if ($env{'request.course.sec'}) {   if ($env{'request.course.sec'}) {
     &Apache::lonxml::debug("sce");      &Apache::lonxml::debug("sce");
     $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},      $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
  \%queue,$cdom,$cnum);   \%queue,$cdom,$cnum,$classlist);
     &Apache::lonxml::debug("sce $todo");      &Apache::lonxml::debug("sce $todo");
  }   }
  # no one _not_ in our section so look for any user that is   # no one _not_ in our section so look for any user that is
  # ready for grading   # ready for grading
  if (!$todo) {   if (!$todo) {
     &Apache::lonxml::debug("no sce");      &Apache::lonxml::debug("no sce");
     $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},      $todo=&pick_from_queue_data($queue,undef,\%queue,$cdom,$cnum,
  \%queue,$cdom,$cnum);   $classlist);
     &Apache::lonxml::debug("no sce $todo");      &Apache::lonxml::debug("no sce $todo");
  }   }
  # no user to grade    # no user to grade 
Line 1079  sub get_from_queue { Line 1937  sub get_from_queue {
  &Apache::lonxml::debug("got $todo");   &Apache::lonxml::debug("got $todo");
  # otherwise found someone so lets try to lock them   # otherwise found someone so lets try to lock them
  # unless someone else already picked them   # unless someone else already picked them
  if (!&lock_key($queue,$todo)) { next; }   if (!&lock_key($queue,$todo)) {
       $attempts++;
       next;
    }
  my (undef,$endtime)=   my (undef,$endtime)=
     &Apache::lonnet::get($queue,["$symb\0timestamp"],      &Apache::lonnet::get($queue,["$symb\0timestamp"],
  $cdom,$cnum);   $cdom,$cnum);
Line 1098  sub get_from_queue { Line 1959  sub get_from_queue {
  &Apache::lonnet::del($queue,["$todo\0locked"],   &Apache::lonnet::del($queue,["$todo\0locked"],
      $cdom,$cnum);       $cdom,$cnum);
  &Apache::lonxml::debug("del");   &Apache::lonxml::debug("del");
    $attempts++;
  next;   next;
     }      }
  }   }
Line 1108  sub get_from_queue { Line 1970  sub get_from_queue {
 }  }
   
 sub select_user {  sub select_user {
     my ($symb,$cid)=&Apache::lonxml::whichuser();      my ($symb,$cid)=&Apache::lonnet::whichuser();
     my $result.='<table border="1">';  
       my @chosen_sections=
    &Apache::loncommon::get_env_multiple('form.chosensections');
   
     &Apache::grades::init_perm();      my $classlist = &get_limited_classlist(\@chosen_sections);
     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all',);      
     &Apache::grades::reset_perm();      my $result;
       if (!(grep(/^all$/,@chosen_sections))) {
    $result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
       '</tt>.</p> '."\n";
       }
       $result.=&Apache::loncommon::start_data_table();
   
     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {      foreach my $student (sort {lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]) cmp lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]) } (keys(%$classlist))) {
  my ($uname,$udom) = split(/:/,$student);   my ($uname,$udom) = split(/:/,$student);
  my %status = &get_student_status($symb,$cid,$udom,$uname);  
    my $cnum=$env{'course.'.$cid.'.num'};
    my $cdom=$env{'course.'.$cid.'.domain'};
    my %status = &get_student_status($symb,$cdom,$cnum,$udom,$uname,
    'Task');
  my $queue = 'none';   my $queue = 'none';
  if ($status{'reviewqueue'} eq 'enqueued') {   my $cannot_grade;
    if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
     $queue = 'reviewqueue';      $queue = 'reviewqueue';
  } elsif ($status{'gradingqueue'} eq 'enqueued') {      if ($status{'reviewqueue'} eq 'in_progress') {
    $cannot_grade=1;
       }
    } elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
     $queue = 'gradingqueue';      $queue = 'gradingqueue';
       if ($status{'gradingqueue'} eq 'in_progress') {
    $cannot_grade=1;
       }
  }   }
  my $todo =    my $todo = 
     &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));      &escape(&encode_queue_key($symb,$udom,$uname));
  $result.=<<RESULT;   if ($cannot_grade) {
 <tr>      $result.=&Apache::loncommon::start_data_table_row().
    '<td>&nbsp;</td><td>'.$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()].
    '</td><td>';
    } else {
       my $seclist;
       foreach my $sec (@chosen_sections) {
    $seclist.='<input type="hidden" name="chosensections" 
                                  value="'.$sec.'" />';
       }
       $result.=&Apache::loncommon::start_data_table_row();
       $result.=<<RESULT;
   <td>    <td>
     <form method="POST">      <form style="display: inline" method="post">
       <input type="hidden" name="gradingkey" value="$todo" />        <input type="hidden" name="gradingkey" value="$todo" />
       <input type="hidden" name="queue" value="$queue" />        <input type="hidden" name="queue" value="$queue" />
       <input type="hidden" name="webgrade" value="no" />        <input type="hidden" name="webgrade" value="no" />
       <input type="hidden" name="regrade" value="yes" />        <input type="hidden" name="regrade" value="yes" />
      <input type="submit" name="submit" value="Regrade" />        <input type="submit" name="submit" value="Regrade" />
         $seclist
     </form>      </form>
   <td>$fullname->{$student}</td>    <td>$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()] <tt>($student)</tt></td>
   <td>    <td>
 RESULT  RESULT
           }
         if ($status{'status'} eq 'pass') {          if ($status{'status'} eq 'pass') {
     $result .= '<font color="green">'.&mt('Passed').'</font>';      $result .= '<font color="green">'.&mt('Passed').'</font>';
  } elsif ($status{'status'} eq 'fail') {   } elsif ($status{'status'} eq 'fail') {
Line 1156  RESULT Line 2047  RESULT
  if ($status{'version'}) {   if ($status{'version'}) {
     $result .= ' '.&mt('Version').' '.$status{'version'};      $result .= ' '.&mt('Version').' '.$status{'version'};
  }   }
    if ($status{'grader'}) {
       $result .= ' '.&mt('(Graded by [_1])',$status{'grader'}).' ';
    }
  $result.= '</td><td>';   $result.= '</td><td>';
  if ($status{'reviewqueue'} eq 'enqueued') {   if ($status{'reviewqueue'} eq 'enqueued') {
     $result .= &mt('Awaiting Review');      $result .= &mt('Awaiting Review');
  } elsif ($status{'reviewqueue'} eq 'locked') {   } elsif ($status{'reviewqueue'} eq 'locked') {
     $result .= &mt('Under Review');      $result .= &mt('Under Review');
    } elsif ($status{'reviewqueue'} eq 'in_progress') {
       $result .= &mt('Still being worked on.');
  } elsif ($status{'gradingqueue'} eq 'enqueued') {   } elsif ($status{'gradingqueue'} eq 'enqueued') {
     $result .= &mt('Awaiting Grading');      $result .= &mt('Awaiting Grading');
  } elsif ($status{'gradingqueue'} eq 'locked') {   } elsif ($status{'gradingqueue'} eq 'locked') {
     $result .= &mt('Being Graded');      $result .= &mt('Being Graded');
    } elsif ($status{'gradingqueue'} eq 'in_progress') {
       $result .= &mt('Still being worked on.');
  } else {   } else {
     $result.="&nbsp;";      $result.="&nbsp;";
  }   }
  $result.= '</td></tr>';   $result.= '</td>'.&Apache::loncommon::end_data_table_row();
     }      }
     $result.='</table>';      $result.=&Apache::loncommon::end_data_table();
     return $result;      return $result;
 }  }
   
 sub get_student_status {  sub get_student_status {
     my ($symb,$cid,$udom,$uname)=@_;      my ($symb,$cdom,$cnum,$udom,$uname,$type)=@_;
     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},  
   $udom,$uname);  
     my %status;      my %status;
     $status{'status'}=$record{'resource.status'};  
     $status{'version'}=$record{'resource.version'};      if ($type eq 'Task') {
     $status{'grader'}=$record{'resource.grader'};   my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
     $status{'reviewqueue'}=&check_queue_for_key($cid,'reviewqueue',    $udom,$uname);
        &encode_queue_key($symb,$udom,$uname));   $status{'status'}=$record{'resource.0.status'};
     $status{'gradingqueue'}=&check_queue_for_key($cid,'gradingqueue',   $status{'version'}=$record{'resource.0.version'};
        &encode_queue_key($symb,$udom,$uname));   $status{'grader'}=$record{'resource.0.regrader'};
       }
       $status{'reviewqueue'}=
    &check_queue_for_key($cdom,$cnum,'reviewqueue',
        &encode_queue_key($symb,$udom,$uname));
       $status{'gradingqueue'}=
    &check_queue_for_key($cdom,$cnum,'gradingqueue',
        &encode_queue_key($symb,$udom,$uname));
     return %status;      return %status;
 }  }
   
Line 1195  sub start_ClosingParagraph { Line 2099  sub start_ClosingParagraph {
     if ($target eq 'web') {      if ($target eq 'web') {
     } elsif ($target eq 'webgrade') {      } elsif ($target eq 'webgrade') {
  &Apache::lonxml::startredirection();   &Apache::lonxml::startredirection();
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
     }      }
     return $result;      return $result;
 }  }
Line 1209  sub end_ClosingParagraph { Line 2116  sub end_ClosingParagraph {
     return $result;      return $result;
 }  }
   
   sub insert_ClosingParagraph {
       return '
   <ClosingParagraph>
       <startouttext />
       <endouttext />
   </ClosingParagraph>';
   }
   
   sub get_dim_id {
       if (@Apache::bridgetask::dimension) {
    return $Apache::bridgetask::dimension[-1];
       } else {
    return $top;
       }
   }
   
 sub get_id {  sub get_id {
     my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
Line 1216  sub get_id { Line 2139  sub get_id {
     return $id;      return $id;
 }  }
   
 my %dimension;  sub start_Setup {
 sub start_Dimension {  
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     undef(%dimension);      my $result;
     my $dim_id=&get_id($parstack,$safeeval);      my $dim = &get_id($parstack,$safeeval);
     $Apache::bridgetask::dimension=$dim_id;      push(@Apache::bridgetask::dimension,$dim);
     push(@Apache::bridgetask::dimensionlist,$dim_id);      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
     undef(@Apache::bridgetask::instance);   &Apache::lonxml::startredirection();
     $Apache::bridgetask::dimensionmandatory{$dim_id}=      } elsif ($target eq 'edit') {
  &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);   $result = &Apache::edit::tag_start($target,$token);
     &Apache::lonxml::startredirection();   $result.= &Apache::edit::text_arg('Id:','id',$token,10).
     return &internal_location($dim_id);      &Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,'id');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
    }
       }
       return $result;
 }  }
   
 sub get_instance {  {
     &Apache::response::pushrandomnumber();      my @allowed;
     my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});      sub enable_dimension_parsing {
     my $num=@order;   my ($id) = @_;
     my $version=&get_version();   push(@allowed,$id);
     my $which=($version-1)%$num;      }
     return $order[$which];      sub disable_dimension_parsing {
    pop(@allowed);
       }
       sub skip_dimension_parsing {
    my ($check) = @_;
    if (!@allowed) { return 0;}
    # if unspecified allow any id
    if ($allowed[-1] eq undef) { return 0;}
   
    return ($check ne $allowed[-1]);
       }
 }  }
   
 {  sub start_Question { return &start_Dimension(@_); }
     my $last_link;  sub start_Dimension {
     sub end_Dimension {      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my $dim = &get_id($parstack,$safeeval);
  my $result=&Apache::lonxml::endredirection();      my $previous_dim;
  my $dim=&get_id($parstack,$safeeval);      my $result;
  my $instance=&get_instance();      if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    if (@Apache::bridgetask::dimension) {
       $previous_dim = $Apache::bridgetask::dimension[-1];
       push(@{$Apache::bridgetask::dimension{$previous_dim}{'contains'}},
    $dim);
       if(&skip_dimension_parsing($dim)) {
    $dimension{$previous_dim}{'criteria.'.$dim} =
       $token->[4]
       .&Apache::lonxml::get_all_text('/'.$tagstack->[-1],$parser,
      $style)
       .'</'.$tagstack->[-1].'>';
       }
       $dimension{$previous_dim}{'criteria.'.$dim.'.type'}='dimension';
       $dimension{$previous_dim}{'criteria.'.$dim.'.mandatory'}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$previous_dim}{'criterias'}},$dim);
       $dimension{$dim}{'nested'}=$previous_dim;
       $dimension{$dim}{'depth'} = 1 + $dimension{$previous_dim}{'depth'};
       
       &Apache::lonxml::debug("adding $dim as criteria to $previous_dim");
    } else {
       $dimension{$top}{'depth'}=0;
       $dimension{$top}{'criteria.'.$dim.'.type'}='dimension';
       $dimension{$top}{'criteria.'.$dim.'.mandatory'}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$top}{'criterias'}},$dim);
       $dimension{$dim}{'nested'}=$top;
    }
           push(@Apache::bridgetask::dimension,$dim);
    &Apache::lonxml::startredirection();
    if (!&skip_dimension_parsing($dim)) {
       &enable_dimension_parsing($dim);
    }
       } elsif ($target eq 'edit') {
     $result = &Apache::edit::tag_start($target,$token);
    $result.=  
       &Apache::edit::text_arg('Id:','id',$token,10).' '.
       &Apache::edit::select_arg('Passing is Mandatory:','Mandatory',
         [['Y', 'Yes'],
          ['N','No'],],
         $token).' <br /> '.
       &Apache::edit::text_arg('Required number of passed optional elements to pass the '.$token->[1].':',
       'OptionalRequired',$token,4).
       &Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'id','Mandatory','OptionalRequired');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
    }
       }
       return $result;# &internal_location($dim);
   }
   
   sub start_QuestionText {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    my $text=&Apache::lonxml::get_all_text('/questiontext',$parser,$style);
       my $dim = &get_dim_id();
    $dimension{$dim}{'questiontext'}=$text;
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
       }
       return $result;
   }
   
   sub end_QuestionText {
       return '';
   }
   
   sub insert_QuestionText {
       return '
   <QuestionText>
       <startouttext />
       <endouttext />
   </QuestionText>';
   }
   
   sub get_instance {
       my ($dim)=@_;
       my $rand_alg=&Apache::lonnet::get_rand_alg();
       if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
    $rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
    $rand_alg eq '64bit4' ) {
    &Apache::response::pushrandomnumber();
    my @order=&Math::Random::random_permutation(@{$dimension{$dim}{'instances'}});
    my $num=@order;
  my $version=&get_version();   my $version=&get_version();
  if ($target eq 'web') {   my $which=($version-1)%$num;
     @Apache::scripttag::parser_env = @_;   return $order[$which];
     $result.=&Apache::scripttag::xmlparse($dimension{'intro'});      } else {
     @Apache::scripttag::parser_env = @_;   my ($version,$previous) = &get_version();
     $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});   my $instance = 
     if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||      $Apache::lonhomework::history{"resource.$version.0.$dim.instance"};
  $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {   if (defined($instance)) { return $instance; }
   
    &Apache::response::pushrandomnumber();
    if (ref($dimension{$dim}{'instances'}) eq 'ARRAY') {
       my @instances = @{$dimension{$dim}{'instances'}};
       # remove disabled instances
       for (my $i=0; $i < $#instances; $i++) {
    if ($dimension{$dim}{$instances[$i].'.disabled'}) {
       splice(@instances,$i,1);
       $i--;
    }
       }
       @instances = &Math::Random::random_permutation(@instances);
       $instance  = $instances[($version-1)%scalar(@instances)];
       if ($version =~ /^\d$/) {
    $Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
       $instance;
    $Apache::lonhomework::results{'INTERNAL_store'} = 1; 
       }
    }
    &Apache::response::poprandomnumber();
    return $instance;
       }
   }
   
   sub get_criteria {
       my ($what,$version,$dim,$id) = @_;
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       my $prefix = ($type eq 'criteria' && $dim ne $top) ? "$dim.$id"
                                                  : "$id";
       my $entry = "resource.$version.0.$prefix.$what";
       if (exists($Apache::lonhomework::results{$entry})) {
    return $Apache::lonhomework::results{$entry};
       }
       return $Apache::lonhomework::history{$entry};
   }
   
  my $dim_status=$Apache::lonhomework::history{"resource.$version.$dim.status"};  sub link {
       my ($id) = @_;
       $id =~ s/\./_/g;
       return 'LC_GRADING_criteria_'.$id;
   }
   sub end_Question { return &end_Dimension(@_); }
   sub end_Dimension {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       my $dim=&get_id($parstack,$safeeval);
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    $result=&Apache::lonxml::endredirection();
    if (&skip_dimension_parsing($dim)) {
       pop(@Apache::bridgetask::dimension);
       return;
    }
       }
       my $instance=&get_instance($dim);
       my $version=&get_version();
       if ($target eq 'web') {
    $result .= &nested_parse(\$dimension{$dim}{'intro'},[@_]);
    my @instances = $instance;
    if (&Apache::response::showallfoils()) {
       @instances = @{$dimension{$dim}{'instances'}};
    }
    my $shown_question_text;
    foreach my $instance (@instances) {
       $result .= &nested_parse(\$dimension{$dim}{$instance.'.text'},
        [@_]);
       $result .= &nested_parse(\$dimension{$dim}{'questiontext'},
        [@_],{'set_dim_id' => undef});
       my $task_status = 
    $Apache::lonhomework::history{"resource.$version.0.status"};
       if ($task_status ne 'pass' && $task_status ne 'fail') {
   
    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
    @{$dimension{$dim}{'criterias'}}) {
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       &Apache::lonxml::debug("$id is $type");
       if ($type eq 'dimension') {
    $result.=
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_],{'set_dim_id' => $id});
       }
    }
       } else {
    my $dim_status=$Apache::lonhomework::history{"resource.$version.0.$dim.status"};
  my $mandatory='Mandatory';   my $mandatory='Mandatory';
  if ($Apache::bridgetask::dimensionmandatory{$dim} eq 'N') {   if (&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval) eq 'N') {
     $mandatory='Optional';      $mandatory='Optional';
  }   }
  my $dim_info="<div class='$dim_status'>\n";   my $dim_info=
       "\n<div class='LC_$dim_status LC_question_grade'>\n\t";
    my $ucquestion = 
       my $question = 
       ('sub' x $dimension{$dim}{'depth'}).'question';
    $ucquestion =~ s/^(.)/uc($1)/e;
  if ($dim_status eq 'pass') {   if ($dim_status eq 'pass') {
     $dim_info.='<h3>Question : you passed this '.$mandatory.' question</h3>';      $dim_info.='<h3>'.$ucquestion.' : you passed this '.$mandatory.' '.$question.'</h3>';
  }   }
  if ($dim_status eq 'fail') {   if ($dim_status eq 'fail') {
     $dim_info.='<h3>Question : you did not pass this '.$mandatory.' question</h3>';      $dim_info.='<h3>'.$ucquestion.' : you did not pass this '.$mandatory.' '.$question.'</h3>';
  }   }
  my $man_count=0;   my %counts = &get_counts($dim,$instance,$parstack,
  my $opt_count=0;   $safeeval);
  my $opt_passed=0;  
  foreach my $id (@{$dimension{$instance.'.criterias'}}) {  
     if ($dimension{$instance.'.criteria.'.$id.'.mandatory'}   
  eq 'N') {  
  $opt_count++;  
  if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"} eq 'pass') {  
     $opt_passed++;  
  }  
     } else {  
  $man_count++;  
     }  
  }  
  my $opt_req=&Apache::lonxml::get_param('OptionalRequired',  
        $parstack,$safeeval);  
  if ($opt_req !~ /\S/) { $opt_req='0'; }  
  $dim_info.="\n<p>".&mt('You passed all of the mandatory components and [_1] of the [_2] optional components, of which you were required to pass [_3].',$opt_passed,$opt_count,$opt_req)."</p>\n</div>";  
   
  my $internal_location=&internal_location($dim);  
  $result=~s/\Q$internal_location\E/$dim_info/;  
   
  foreach my $id (@{$dimension{$instance.'.criterias'}}) {   $dim_info.="\n\t<p>"
     my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};      .&question_status_message(\%counts,
     my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};        $dimension{$dim}{'depth'})
     my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');      ."</p>\n</div>\n";
     if ($mandatory) {  
  $mandatory='Mandatory';   foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
     } else {   @{$dimension{$dim}{'criterias'}}) {
  $mandatory='Optional';      my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
     }      if ($type eq 'dimension') {
     if ($status eq 'fail') {   if (defined($dimension{$id}{'result'})) {
     } elsif ($status eq 'pass') {      $result.=$dimension{$id}{'result'};
       next;
    } else {
       $dim_info .=
    &nested_parse(\$dimension{$dim}{'criteria.'.$id},
         [@_],{'set_dim_id' => $id});
    }
     } else {      } else {
  &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");   my $criteria =
     }      &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     my $status_display=$status;    [@_]);
     $status_display=~s/^([a-z])/uc($1)/e;   $dim_info .= &layout_web_Criteria($dim,$id,$criteria);
     @Apache::scripttag::parser_env = @_;  
     $result.='<div class="'.$status.'"><h4>'.$mandatory.  
  ' Criteria</h4><p>';  
     @Apache::scripttag::parser_env = @_;  
     $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});  
     $result.='</p><p class="grade">'.$status_display.'</p>';  
     if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {  
  $result.='<p class="comment">'.$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</p>';  
     }      }
     $result.='</div>';  
  }   }
     }   # puts the results at the end of the dimension
  } elsif ($target eq 'webgrade') {   if ($result =~m{<QuestionGradeInfo\s*/>}) {
     # in case of any side effects that we need      $result=~s{<QuestionGradeInfo\s*/>}{$dim_info};
     @Apache::scripttag::parser_env = @_;   } else {
     &Apache::scripttag::xmlparse($dimension{'intro'});      $result .= $dim_info;
     @Apache::scripttag::parser_env = @_;  
     &Apache::scripttag::xmlparse($dimension{$instance.'.text'});  
     foreach my $id (@{$dimension{$instance.'.criterias'}}) {  
  my $link='criteria_'.$instance.'_'.$id;  
  my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};  
  $result.='<tr><td width="100%" valign="top">'.  
     '<a name="'.$link.'" />'.  
     '<a name="next_'.$last_link.'" />'.  
     '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';  
  @Apache::scripttag::parser_env = @_;  
  $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});  
  $result.='</textarea>'.  
     #$dimension{$instance.'.criteria.'.$id}.  
     '</td>'.  
     '<td><nobr>Additional Comment for Student</nobr> <br />'.  
     '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.  
     '</td>'.  
     '<td>'.  
     '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.  
     '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.  
     '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.  
     '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.  
     '</td>'.  
     '<td>'.  
     '<a href="#'.$last_link.'">Prev</a><br />'.  
     '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.  
     '<input type="submit" name="next" value="'.  
     &mt('Done').'" /> '.  
     '<input type="submit" name="stop" value="'.  
     &mt('Stop').'" /> '.  
     '</td></tr>';  
  $result.='<tr><td colspan="4">';  
  my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();  
  my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';  
  foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {  
     my $file=$file_url.$partial_file;  
     $file=~s|/+|/|g;  
     &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);  
     $result.='<nobr><a href="'.$file.'" target="lonGRDs"><img src="'.  
  &Apache::loncommon::icon($file).'" border=0"> '.$file.  
  '</a></nobr> ';  
  }   }
  $result.='</td></tr>';   # puts the results at the beginning of the dimension
  $last_link=$link;   # my $internal_location=&internal_location($dim);
    # $result=~s/\Q$internal_location\E/$dim_info/;
       }
    }
    if ($result !~ /^\s*$/s) {
       # FIXME? this maybe unneccssary in the future, (CSE101 BT
       # from Fall 2006 geenrate a div that attempts to hide some
       # of the output in an odd way, this is a workaround so
       # those old ones will continue to work.  # It puts the
       # LC_question div to come after any starting closie div
       # that the dimension produces
       if ($result =~ m{^\s*</div>}) {
    $result =~ s{^(\s*</div>)}
               {$1\n<div id="$dim" class="LC_question">};
       } else {
    $result = "\n".'<div id="'.$dim.'" class="LC_question">'.
       "\n".$result;
     }      }
  } elsif ($target eq 'grade' && $env{'form.webgrade'}) {      $result .= "\n</div>\n";
     my $optional_passed=0;   }
     my $mandatory_failed=0;      } elsif ($target eq 'webgrade') {
     my $ungraded=0;   # in case of any side effects that we need
     my $review=0;   &nested_parse(\$dimension{$dim}{'intro'},[@_]);
     foreach my $id (@{$dimension{$instance.'.criterias'}}) {   &nested_parse(\$dimension{$dim}{$instance.'.text'},[@_]);
  my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};   $result.=
  $Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};      &nested_parse(\$dimension{$dim}{'questiontext'},[@_],
  my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');    {'set_dim_id'          => undef,
  if ($status eq 'pass') {     'delayed_dim_results' => 1});
     if (!$mandatory) { $optional_passed++; }   foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
  } elsif ($status eq 'fail') {   @{$dimension{$dim}{'criterias'}} ) {
     if ($mandatory) { $mandatory_failed++; }      my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
  } elsif ($status eq 'review') {      if ($type eq 'dimension') {
     $review++;   # dimensional 'criteria' don't get assigned grades
  } elsif ($status eq 'ungraded') {   $result.=
     $ungraded++;      &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_],{'set_dim_id' => $id});
    next;
       } else {
    my $criteria =&nested_parse(\$dimension{$dim}{'criteria.'.$id},
        [@_]);
    $criteria = &layout_webgrade_Criteria($dim,$id,$criteria);
    my $internal_location=&internal_location($id);
    if ($result =~ m/\Q$internal_location\E/) {
       $result =~ s/\Q$internal_location\E/$criteria/;
  } else {   } else {
     $ungraded++;      $result.=$criteria ;
  }   }
     }      }
     if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {   }
  $mandatory_failed++;   if (&nest()) {
       &Apache::lonxml::debug(" for $dim stashing results into ".$dimension{$dim}{'nested'});
       $dimension{$dimension{$dim}{'nested'}}{'result'}.=$result;
       undef($result);
    }
       } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
    my $optional_passed=0;
    my $mandatory_failed=0;
    my $ungraded=0;
    my $review=0;
   
    $result .= &nested_parse(\$dimension{$dim}{'intro'},[@_]);
    $result .= &nested_parse(\$dimension{$dim}{$instance.'.text'},
    [@_]);
    $result .= &nested_parse(\$dimension{$dim}{'questiontext'},
    [@_],{'set_dim_id' => undef});
   
    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
    @{$dimension{$dim}{'criterias'}}) {
       my $link=&link($id);
       
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       if ($type eq 'criteria') {
    # dimensional 'criteria' don't get assigned grades
    $Apache::lonhomework::results{"resource.$version.0.$dim.$id.status"}=$env{'form.HWVAL_'.$link};
    $Apache::lonhomework::results{"resource.$version.0.$dim.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
       } else {
    $result .=
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_],{'set_dim_id' => $id});
     }      }
     &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");      my $status= &get_criteria('status',$version,$dim,$id);
     if ($review) {      
  $Apache::lonhomework::results{"resource.$version.$dim.status"}=      my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
     'review';      if ($status eq 'pass') {
     } elsif ($ungraded) {   if (!$mandatory) { $optional_passed++; }
  $Apache::lonhomework::results{"resource.$version.$dim.status"}=      } elsif ($status eq 'fail') {
     'ungraded';   if ($mandatory) { $mandatory_failed++; }
     } elsif ($mandatory_failed) {      } elsif ($status eq 'review') {
  $Apache::lonhomework::results{"resource.$version.$dim.status"}=   $review++;
     'fail';      } elsif ($status eq 'ungraded') {
    $ungraded++;
     } else {      } else {
  $Apache::lonhomework::results{"resource.$version.$dim.status"}=   $ungraded++;
     'pass';  
     }      }
  }   }
  return $result;  
    my $opt_req=$dimension{$dim}{$instance.'.optionalrequired'};
    if ($opt_req !~ /\S/) {
       $opt_req=
    &Apache::lonxml::get_param('OptionalRequired',
      $parstack,$safeeval);
       if ($opt_req !~ /\S/) { $opt_req = 0; }
    }
    if ($optional_passed < $opt_req) {
       $mandatory_failed++;
    }
    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$dim}{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
    if ($review) {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'review';
    } elsif ($ungraded) {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'ungraded';
    } elsif ($mandatory_failed) {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'fail';
    } else {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'pass';
    }
       } elsif ($target eq 'edit') {
       } elsif ($target eq 'modified') {
       } else {
    # any other targets no output
    undef($result);
       }
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    &disable_dimension_parsing();
    pop(@Apache::bridgetask::dimension);
     }      }
       return $result;
 }  }
   
 sub start_IntroParagraph {  sub question_status_message {
       my ($counts,$depth) = @_;
       my %req  = ('man' => 'mandatory',
    'opt' => 'optional',);
       my %type = ('cri' => 'criteria',
    'dim' => ('sub'x($depth+1)).'questions',);
       my @sections;
       foreach my $req ('man','opt') {
    foreach my $type ('cri','dim') {
       if ($counts->{$req.'_'.$type}) {
    push(@sections,
        $counts->{$req.'_'.$type.'_passed'}.' of the '.
        $counts->{$req.'_'.$type}.' '.
        $req{$req}.' '.$type{$type});
       }
    }
       }
   
       my $status = 'You passed ';
       if (@sections == -1) {
       } elsif (@sections == 1) {
    $status .= $sections[0];
       } elsif (@sections == 2) {
    $status .= $sections[0].' and '.$sections[1];
       } else {
    my $last = pop(@sections);
    $status .= join(', ',@sections).', and '.$last;
       }
       $status .= '.';
       if ($counts->{'opt'}) {
    $status .= ' You were required to pass '.$counts->{'opt_req'}.
       ' optional ';
    if ($counts->{'opt_dim'} + $counts->{'man_dim'} < 1) {
       $status .=
    ($counts->{'opt_req'} == 1?'criterion':'criteria');
    } else {
       $status .=
    'component'.($counts->{'opt_req'} == 1?'':'s');
    }
    $status .= '.';
       }
       return $status;
   }
   
   sub get_counts {
       my ($dim,$instance,$parstack,$safeeval) = @_;
       my %counts;
       my @possible = ('man_cri','man_dim',
       'opt_cri','opt_dim',
       'man_cri_passed', 'man_dim_passed',
       'opt_cri_passed', 'opt_dim_passed',
       'man_passed',
       'opt_passed',
       'opt_req');
       foreach my $which (@possible) { $counts{$which} = 0; }
   
       my $version = &get_version();
   
       foreach my $id ( @{$dimension{$dim}{$instance.'.criterias'}},
        @{$dimension{$dim}{'criterias'}} ) {
    my $status = &get_criteria('status',$version,$dim,$id);
    my $which;
    if ($dimension{$dim}{'criteria.'.$id.'.mandatory'} 
       eq 'N') {
       $which = 'opt';
    } else {
       $which = 'man';
    }
    $counts{$which}++;
    if ($status eq 'pass') { $counts{$which.'_passed'}++; }
    if ($dimension{$dim}{'criteria.'.$id.'.type'}
       eq 'dimension') {
       $which .= '_dim';
    } else {
       $which .= '_cri';
    }
    $counts{$which}++;
    if ($status eq 'pass') { $counts{$which.'_passed'}++; }
   
   
       }
       if ($counts{'man_dim_passed'} eq $counts{'man_dim'}) {
    $counts{'man_dim_passed'}='all';
       }
       if ($counts{'man_cri_passed'} eq $counts{'man_cri'}) {
    $counts{'man_cri_passed'}='all';
       }
       
       $counts{'opt_req'}=$dimension{$dim}{$instance.'.optionalrequired'};
       if ($counts{'opt_req'} !~ /\S/) {
    $counts{'opt_req'}= &Apache::lonxml::get_param('OptionalRequired',
          $parstack,$safeeval);
    if ($counts{'opt_req'} !~ /\S/) { $counts{'opt_req'} = 0; }
       }
       return %counts;
   }
   
   sub end_Setup {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;      my $result;
     if ($target eq 'web' || $target eq 'webgrade') {      my $dim=&get_id($parstack,$safeeval);
  if ($tagstack->[-2] eq 'Dimension') {      my $instance=&get_instance($dim);
     $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser);      my $version=&get_version();
       if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
  } elsif ($target eq 'webgrade') {   $result=&Apache::lonxml::endredirection();
     &Apache::lonxml::get_all_text('/introparagraph',$parser);      }
       if ($target eq 'web') {
    @Apache::scripttag::parser_env = @_;
    $result.=&Apache::scripttag::xmlparse($dimension{$dim}{'intro'});
    my @instances = $instance;
    if (&Apache::response::showallfoils()) {
       @instances = @{$dimension{$dim}{'instances'}};
    }
    foreach my $instance (@instances) {
       @Apache::scripttag::parser_env = @_;
       $result.=&Apache::scripttag::xmlparse($dimension{$dim}{$instance.'.text'});
       @Apache::scripttag::parser_env = @_;
       $result.=&Apache::scripttag::xmlparse($dimension{$dim}{'questiontext'});
    }
       } elsif ($target eq 'webgrade' 
        || $target eq 'grade' && $env{'form.webgrade'}) {
    # in case of any side effects that we need
    @Apache::scripttag::parser_env = @_;
    &Apache::scripttag::xmlparse($dimension{$dim}{'intro'});
    @Apache::scripttag::parser_env = @_;
    &Apache::scripttag::xmlparse($dimension{$dim}{$instance.'.text'});
    @Apache::scripttag::parser_env = @_;
    &Apache::scripttag::xmlparse($dimension{$dim}{'questiontext'});
       } else {
    # any other targets no output
    undef($result);
       }
       pop(@Apache::bridgetask::dimension);
       return $result;
   }
   
   sub grading_history {
       my ($version,$dim,$id) = @_;
       if (!&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
    return '';
       }
       my ($result,$grader);
       my $scope="resource.$version.0.";
       $scope .= ($dim ne $top) ? "$dim.$id"
                        : "$id";
       foreach my $t (1..$Apache::lonhomework::history{'version'}) {
    if (exists($Apache::lonhomework::history{$t.':resource.0.regrader'})) {
       my ($gname,$gdom) = 
    split(':',$Apache::lonhomework::history{$t.':resource.0.regrader'});
       my $fullname = &Apache::loncommon::plainname($gname,$gdom);
       $grader = &Apache::loncommon::aboutmewrapper($fullname,
    $gname,$gdom);
    }
    my $entry;
    if (exists($Apache::lonhomework::history{"$t:$scope.status"})) {
       $entry.="<tt>".$Apache::lonhomework::history{"$t:$scope.status"}.'</tt>';
    }
    if (exists($Apache::lonhomework::history{"$t:$scope.comment"})) {
       $entry.=' comment: "'.$Apache::lonhomework::history{"$t:$scope.comment"}.'"';
    }
    if ($entry) {
       $result.= "\n\t\t<li>\n\t\t\t$grader :\n\t\t\t $entry \n\t\t</li>";
    }
       }
       if ($result) {
    return "\n\t".'<ul class="LC_GRADING_pastgrading">'.$result.
       "\n\t".'</ul>'."\n";
       }
       return '';
   }
   
   sub start_IntroParagraph {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       my $dim = &get_dim_id();
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    if ($tagstack->[-2] eq 'Dimension' || $tagstack->[-2] eq 'Question' ) {
       $dimension{$dim}{'intro'}=
    &Apache::lonxml::get_all_text('/introparagraph',
         $parser,$style);
           } elsif ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
       &Apache::lonxml::startredirection();
  }   }
   
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
     }      }
     return $result;      return $result;
 }  }
   
 sub end_IntroParagraph {  sub end_IntroParagraph {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       if ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
    my $result = &Apache::lonxml::endredirection();
       }
   }
   
   sub insert_IntroParagraph {
       return '
   <IntroParagraph>
       <startouttext />
       <endouttext />
   </IntroParagraph>';
 }  }
   
 sub start_Instance {  sub start_Instance {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $id=&get_id($parstack,$safeeval);      my $dim = &get_dim_id();
     push(@{$dimension{'instances'}},$id);      my $id  = &get_id($parstack,$safeeval);
     push(@Apache::bridgetask::instance,$id);      push(@{$dimension{$dim}{'instances'}},$id);
       push(@{$Apache::bridgetask::instance{$dim}},$id);
     push(@Apache::bridgetask::instancelist,$id);      push(@Apache::bridgetask::instancelist,$id);
     $dimension{$id.'.optionalrequired'}=      $dimension{$dim}{$id.'.optionalrequired'}=
  &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);   &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
     return '';      my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
       if (lc($disabled) eq 'yes') {
    $dimension{$dim}{$id.'.disabled'}='1';
       }
       my $result;
       if ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
    $result.=  
       &Apache::edit::text_arg('Id:','id',$token,10).' '.
       &Apache::edit::select_arg('Instance is Disabled:','Disabled',
         [['no', 'No'],
          ['yes','Yes'],],
         $token)
       .' <br /> '.
       &Apache::edit::text_arg('Required number of passed optional elements to pass the Instance:',
       'OptionalRequired',$token,4)
       .&Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'id','OptionalRequired','Disabled');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
    }
       }
       return $result;
 }  }
   
 sub end_Instance {  sub end_Instance {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       if ($target eq 'edit') {
    $result = &Apache::edit::tag_end($target,$token);
       }
       return $result;
 }  }
   
 sub start_InstanceText {  sub start_InstanceText {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $instance_id=$Apache::bridgetask::instance[-1];      my $result;
     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser);      if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
     if ($target eq 'web' || $target eq 'webgrade') {   my $text=&Apache::lonxml::get_all_text('/instancetext',$parser,$style);
  $dimension{$instance_id.'.text'}=$text;   my $dim = &get_dim_id();
    my $instance_id=$Apache::bridgetask::instance{$dim}[-1];
    $dimension{$dim}{$instance_id.'.text'}=$text;
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
     }      }
     return '';      return $result;
 }  }
   
 sub end_InstanceText {  sub end_InstanceText {
     return '';      return '';
 }  }
   
   sub insert_InstanceText {
       return '
   <InstanceText>
       <startouttext />
       <endouttext />
   </InstanceText>';
   }
   
 sub start_Criteria {  sub start_Criteria {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $instance_id=$Apache::bridgetask::instance[-1];      my $result = '';
     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser);  
     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
    my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser,$style);
    my $dim = &get_dim_id();
  my $id=&get_id($parstack,$safeeval);   my $id=&get_id($parstack,$safeeval);
  $dimension{$instance_id.'.criteria.'.$id}=$criteria;   if ($target eq 'web' || $target eq 'webgrade') {
  $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=      if ($target eq 'webgrade') {
     &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);   &Apache::lonxml::debug(" for $dim $id stashing results into $dim ");
  push(@{$dimension{$instance_id.'.criterias'}},$id);   $dimension{$dim}{'result'} .= &internal_location($id);
       } else {
    &Apache::lonxml::debug(" not stashing $dim $id");
    #$result .= &internal_location($id);
       }
    }
    &Apache::lonxml::debug("Criteria $id with $dim");
    if (&Apache::londefdef::is_inside_of($tagstack,'Instance')) {
       my $instance_id=$Apache::bridgetask::instance{$dim}[-1];
       $dimension{$dim}{"criteria.$instance_id.$id"}=$criteria;
       $dimension{$dim}{"criteria.$instance_id.$id.type"}='criteria';
       $dimension{$dim}{"criteria.$instance_id.$id.mandatory"}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$dim}{$instance_id.'.criterias'}},"$instance_id.$id");
    } else {
       $dimension{$dim}{'criteria.'.$id}=$criteria;
       $dimension{$dim}{'criteria.'.$id.'.type'}='criteria';
       $dimension{$dim}{'criteria.'.$id.'.mandatory'}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$dim}{'criterias'}},$id);
    }
       } elsif ($target eq 'edit') {
    $result .=&Apache::edit::tag_start($target,$token);
    $result.=  
       &Apache::edit::text_arg('Id:','id',$token,10).' '.
       &Apache::edit::select_arg('Passing is Mandatory:','Mandatory',
         [['Y', 'Yes'],
          ['N','No'],],
         $token)
       .' <br /> '.&Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'id','Mandatory');
    if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     }      }
     return '';      return $result;
   }
   
   sub layout_web_Criteria {
       my ($dim,$id,$criteria) = @_;
   
       my $version = &get_version();
       my $status= &get_criteria('status', $version,$dim,$id);
       my $comment=&get_criteria('comment',$version,$dim,$id);
       my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
       if ($mandatory) {
    $mandatory='Mandatory';
       } else {
    $mandatory='Optional';
       }
       my $status_display=$status;
       $status_display=~s/^([a-z])/uc($1)/e;
       my $criteria_info.=
    '<div class="LC_'.$status.' LC_criteria">'."\n\t".'<h4>'
    .$mandatory.' Criteria</h4>'."\n\t".'<p class="LC_criteria_text">'
    ."\n";
       $criteria =~ s/^\s*//s;
       $criteria =~ s/\s*$//s;
       $criteria_info.= $criteria;
       $criteria_info.="\n\t".'</p>'.
    "\n\t".'<p class="LC_grade">'.$status_display.'</p>';
       if ($comment =~ /\w/) {
    $criteria_info.=
       "\n\t".
       '<p class="LC_comment">'.&mt('Comment: [_1]',$comment).'</p>';
       }
       $criteria_info.="\n".'</div>'."\n";
       
       return $criteria_info;
   }
   
   sub layout_webgrade_Criteria {
       my ($dim,$id,$criteria) = @_;
       my $link=&link($id);
       my $version = &get_version();
       my $status  = &get_criteria('status',$version,$dim,$id);
       my %lt = ( 'ungraded' => 'Ungraded',
          'fail'     => 'Fail',
          'pass'     => 'Pass',
          'review'   => 'Review',
          'comment'  => 'Additional Comment for Student',
          );
       %lt = &Apache::lonlocal::texthash(%lt);
       my $comment = &get_criteria('comment',$version,$dim,$id);
       $comment = &HTML::Entities::encode($comment,'<>"&');
       my %checked;
       foreach my $which ('ungraded','fail','pass','review') {
    if ($status eq $which) { $checked{$which} = 'checked="checked"'; }
       }
       if (!%checked) { $checked{'ungraded'} = 'checked="checked"'; }
       my $buttons;
       foreach my $which  ('ungraded','fail','pass','review') {
    $buttons .= <<END_BUTTON;
    <label class="LC_GRADING_$which">
    <input type="radio" name="HWVAL_$link" value="$which" $checked{$which} />
    $lt{$which}
    </label>
   END_BUTTON
       }
       $criteria =~ s/^\s*//s;
       $criteria =~ s/\s*$//s;
       my $result = <<END_CRITERIA;
   <div class="LC_GRADING_criteria">
    <div class="LC_GRADING_criteriatext">
    $criteria
    </div>
    <div class="LC_GRADING_grade">
   $buttons
    </div>
    <label class="LC_GRADING_comment">
    $lt{'comment'}
    <textarea class="LC_GRADING_comment_area" name="HWVAL_comment_$link">$comment</textarea>
    </label>
   </div>
   END_CRITERIA
       $result .= &grading_history($version,$dim,$id);
       return $result;
 }  }
   
 sub end_Criteria {  sub end_Criteria {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       if ($target eq 'edit') {
       } elsif ($target eq 'modified') {
       }
   }
   sub insert_Criteria {
       return '
   <Criteria>
       <CriteriaText>
           <startouttext />
           <endouttext />
       </CriteriaText>
   </Criteria>';
   }
   
   sub start_CriteriaText {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
   
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
       }
       return $result;
   }
   
   sub end_CriteriaText {
       return '';
 }  }
   
   sub insert_CriteriaText {
       return '
   <CriteriaText>
       <startouttext />
       <endouttext />
   </CriteriaText>';
   }
   
   sub start_GraderNote {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'webgrade') {
    $result = '<div class="LC_GRADING_gradernote"><b>'.
       &mt('Note to graders:').'</b>';
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
       } elsif ($target eq 'web' || $target eq 'grade') {
    my $note=&Apache::lonxml::get_all_text('/gradernote',$parser,$style); 
       }
       return $result;
   }
   
   sub end_GraderNote {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
       if ($target eq 'webgrade') {
    return '</div>';
       }
       return;
   }
   
   sub insert_GraderNote {
       return '
   <GraderNote>
       <startouttext />
       <endouttext />
   </GraderNote>';
   }
   
   
 sub proctor_validation_screen {  sub proctor_validation_screen {
     my ($slot) = @_;      my ($slot) = @_;
     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();      my (undef,undef,$domain,$user) = &Apache::lonnet::whichuser();
     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');      my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
       if ($url ne '/adm/lonKaputt/lonlogo_broken.gif') {
    $url = "<tr><td colspan=\"2\"><img src=\"$url\" /></td></tr>";
       } else {
    undef($url);
       }
   
     my $name=&Apache::loncommon::plainname($user,$domain);      my $name=&Apache::loncommon::plainname($user,$domain);
           
     my $msg;      my $msg;
     if ($env{'form.proctorpassword'}) {      if ($env{'form.proctorpassword'}) {
  $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")   $msg.='<p><span class="LC_warning">'
     .'</font></p>';      .&mt("Failed to authenticate the proctor.")
       .'</span></p>';
       }
   
       my $valid;
       my @possible_proctors=split(",",$slot->{'proctor'});
       foreach my $proctor (@possible_proctors) {
    if ($proctor =~ /$LONCAPA::username_re:$LONCAPA::domain_re/) {
       $valid = 1;
       last;
    }
       }
       if (!$valid) {
    $msg.='<p><span class="LC_error">'
       .&mt("No valid poctors are defined.")
       .'</span></p>';
     }      }
       
     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }      if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
       my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
       $uri = &HTML::Entities::encode($uri,'<>&"');
     my $result= (<<ENDCHECKOUT);      my $result= (<<ENDCHECKOUT);
 <h2>Proctor Validation</h2>  <h2>Proctor Validation</h2>
     <p>Your room's proctor needs to validate your access to this resource.</p>      <p>Your room's proctor needs to validate your access to this resource.</p>
     $msg      $msg
 <form name="checkout" method="POST" action="$env{'request.uri'}">  <form name="checkout" method="post" action="$uri">
 <input type="hidden" name="validate" value="yes" />  <input type="hidden" name="validate" value="yes" />
 <input type="hidden" name="submitted" value="yes" />  <input type="hidden" name="submitted" value="yes" />
 <table>  <table>
Line 1503  sub proctor_validation_screen { Line 3090  sub proctor_validation_screen {
       <tr><td colspan="2">Student who should be logged in is:</td></tr>        <tr><td colspan="2">Student who should be logged in is:</td></tr>
       <tr><td>Name:</td><td>$name</td></tr>        <tr><td>Name:</td><td>$name</td></tr>
       <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>        <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
       <tr><td>Usename</td><td>$user\@$domain</td></tr>        <tr><td>Usename</td><td>$user:$domain</td></tr>
       <tr><td colspan="2"><img src="$url" /></td></tr>        $url
     </table>      </table>
   </tr></td>    </tr></td>
 </table>  </table>

Removed from v.1.57  
changed lines
  Added in v.1.233


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