loncom/homework/bridgetask.pm - diff

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Diff for /loncom/homework/bridgetask.pm between versions 1.47 and 1.220

-version 1.47, 2005/09/14 18:25:40
+version 1.220, 2007/01/13 06:19:00
  Line 38  use Apache::lonlocal;
  use Apache::lonxml;
  use Apache::slotrequest();
  use Time::HiRes qw( gettimeofday tv_interval );
+ use lib '/home/httpd/lib/perl/';
+ use LONCAPA;
  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','GraderNote','ClosingParagraph'));
  }
+ my %dimension;
+ my $top = 'top';
  sub initialize_bridgetask {
      # id of current Dimension, 0 means that no dimension is current
      # (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
-     @Apache::bridgetask::instance=();
+     %Apache::bridgetask::instance=();
      # list of all Instance ids seen in this problem
      @Apache::bridgetask::instancelist=();
      # key of queud user data that we are currently grading
      $Apache::bridgetask::queue_key='';
+     undef(%dimension);
  }
  sub proctor_check_auth {
-     my ($slot_name,$slot)=@_;
+     my ($slot_name,$slot,$type)=@_;
      my $user=$env{'form.proctorname'};
      my $domain=$env{'form.proctordomain'};
      my @allowed=split(",",$slot->{'proctor'});
      foreach my $possible (@allowed) {
- 	my ($puser,$pdom)=(split('@',$possible));
+ 	my ($puser,$pdom)=(split(':',$possible));
  	if ($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,$slot_name);
  		return 1;
  	    }
  	}
- Line 89  sub proctor_check_auth {
+ Line 91  sub proctor_check_auth {
      return 0;
  }
+ sub check_in {
+     my ($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"}=
+ 	    $slot_name;
+     }
+ }
  sub get_version {
      my ($version,$previous);
      if ($env{'form.previousversion'} &&
  	$env{'form.previousversion'} ne 'current' &&
- 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
+ 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.0.status'})) {
  	$version=$env{'form.previousversion'};
  	$previous=1;
      } 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'};
+ 	}
  	$previous=0;
      }
      if (wantarray) {
- Line 109  sub get_version {
+ Line 191  sub get_version {
  sub add_previous_version_button {
      my ($status)=@_;
      my $result;
-     if ($Apache::lonhomework::history{'resource.version'} eq '') {
+     if ($Apache::lonhomework::history{'resource.0.version'} eq '') {
  	return '';
      }
-     if ($Apache::lonhomework::history{'resource.version'} < 2 &&
+     if ($Apache::lonhomework::history{'resource.0.version'} < 2 &&
  	$status ne 'NEEDS_CHECKIN') {
  	return '';
      }
- Line 123  sub add_previous_version_button {
+ Line 205  sub add_previous_version_button {
  	    "</h3>\n";
      }
      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);
  	}
      }
- Line 132  sub add_previous_version_button {
+ Line 214  sub add_previous_version_button {
  	join("</option>\n<option>",@to_show).
  	     "</option>\n";
      $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'};
      if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
      $result.=$uri.'">'.
- Line 144  sub add_previous_version_button {
+ Line 226  sub add_previous_version_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").'" />';
-     $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'})) {
  	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');
- 	$result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$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="'.
+ 	    &mt("Select an entry from the review queue:").'" /> ';
+ 	$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 $result;
  }
- Line 167  sub add_request_another_attempt_button {
+ Line 289  sub add_request_another_attempt_button {
      if (!$text) { $text="Request another attempt"; }
      my $result;
      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 $action='get_reservation';
      if ($slot_name) {
- Line 175  sub add_request_another_attempt_button {
+ Line 303  sub add_request_another_attempt_button {
  	my $description=&Apache::slotrequest::get_description($slot_name,
  							      $slot);
  	$result.=(<<STUFF);
- <p> Will be next available: $description </p>
+     <p> Will be next available: $description </p>
  STUFF
      }
      if ($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="'.$action.'" />'."\n\t\t".
  	'<input type="submit" name="requestattempt" value="'.
- 	&mt($text).'" />'.
+ 	&mt($text).'" />'."\n\t".
- 	'</form>';
+ 	'</form>'."\n";
      return $result;
  }
- Line 202  sub preserve_grade_info {
+ Line 331  sub preserve_grade_info {
      return $result;
  }
+ sub style {
+     my ($target) = @_;
+     if ($target eq 'web'
+ 	|| $target eq 'webgrade') {
+ 	my $style = (<<STYLE);
+ <link rel="stylesheet" type="text/css" href="/res/adm/includes/task.css" />
+ STYLE
+         if ($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 $style;
+     }
+     return;
+ }
+ sub show_task {
+     my ($status,$previous)=@_;
+     if (!$previous && (
+ 		       ( $status eq 'CLOSED' ) ||
+ 		       ( $status eq 'BANNED') ||
+ 		       ( $status eq 'UNAVAILABLE') ||
+ 		       ( $status eq 'NOT_IN_A_SLOT') ||
+ 		       ( $status eq 'NEEDS_CHECKIN') ||
+ 		       ( $status eq 'WAITING_FOR_GRADE') ||
+ 		       ( $status eq 'INVALID_ACCESS') ||
+ 		       ( &get_version() eq ''))) {
+ 	return 0;
+     }
+     if ($env{'form.donescreen'}) { return 0; }
+     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 $result;
+ }
+ sub internal_location {
+     my ($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',
+ 	    );
+     %lt=&Apache::lonlocal::texthash(%lt);
+     my $result=<<INFO;
+   <div class="LC_GRADING_maincontrols">
+ INFO
+     if (&grade_mode() eq 'regrade') {
+ 	$result.=<<INFO;
+     <input type="submit" name="cancel" value="$lt{'cancel'}" />
+ INFO
+     }
+     $result.=<<INFO;
+     <input type="submit" name="next" value="$lt{'done'}" />
+     <input type="submit" name="stop" value="$lt{'stop'}" />
+     <input type="button" name="fail" value="$lt{'fail'}"
+            onclick="javascript:onFailRest()" />
+   </div>
+   $file_list
+ INFO
+     return $result;
+ }
+ sub done_screen {
+     my ($version) = @_;
+     my $title=&Apache::lonnet::gettitle();
+     my @files=split(',',$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
+ $comment_status
+ DONESCREEN
+ }
  sub start_Task {
-     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      my ($status,$accessmsg,$slot);
+     &Apache::structuretags::init_problem_globals('Task');
      if ($target ne 'webgrade') {
  	&Apache::structuretags::initialize_storage();
  	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
+ 	if ($env{'request.state'} eq 'construct') {
+ 	    &Apache::structuretags::setup_rndseed($safeeval);
+ 	}
      }
      $Apache::lonhomework::parsing_a_task=1;
-     #should get back a <html> or the neccesary stuff to start XML/MathML
-     my ($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'};
  	    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 $symb=&Apache::lonnet::symbread();
  	    if (&Apache::lonnet::allowed('mgq',$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="command" value="showslots" />'.
  		    '<input type="submit" name="requestattempt" value="'.
  		    &mt('Show Slot list').'" />'.
  		    '</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 eq 'web' && $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,$previous)=&get_version();
  	($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);
  	$Apache::inputtags::slot_name=$slot_name;
  	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::lonxml::debug("Got $status");
- 	$body_tag_start.=&add_previous_version_button($status);
+ 	$result.=&add_previous_version_button($status);
- 	if (!$previous && (
+ 	if (!&show_task($status,$previous)) {
- 			   ( $status eq 'CLOSED' ) ||
+ 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
- 			   ( $status eq 'BANNED') ||
- 			   ( $status eq 'UNAVAILABLE') ||
- 			   ( $status eq 'NOT_IN_A_SLOT') ||
- 			   ( $status eq 'NEEDS_CHECKIN') ||
- 			   ( $status eq 'WAITING_FOR_GRADE') ||
- 			   ( $status eq 'INVALID_ACCESS') )) {
- 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
  	    if ( $target eq "web" ) {
- 		$result.= $head_tag_start.'</head>'.$body_tag_start;
+ 		if ($env{'request.state'} eq 'construct') {
+ 		    $result.=$form_tag_start;
+ 		}
  		my $msg;
  		if ($status eq 'UNAVAILABLE') {
  		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
- Line 267  sub start_Task {
+ Line 669  sub start_Task {
  			'</h1>'.&proctor_validation_screen($slot);
  		} elsif ($status eq 'WAITING_FOR_GRADE') {
  		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
+ 		} elsif ($env{'form.donescreen'}) {
+ 		    $result .= &done_screen($version);
  		} elsif ($status ne 'NOT_YET_VIEWED') {
  		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
  		}
- Line 283  sub start_Task {
+ Line 687  sub start_Task {
  		}
  	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
  		if ($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') {
- 	    my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
- 	    $result.="$head_tag_start<title>$name</title></head>
-               $body_tag_start \n";
- 	    my ($version,$previous)=&get_version();
- 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
- 		$result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
- 		if (!$previous) {
- 		    $result.=&add_request_another_attempt_button();
- 		}
- 	    }
- 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
- 		$result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
- 	    }
- 	    $result.=$form_tag_start.
- 		'<input type="hidden" name="submitted" value="yes" />';
- 	    $result.=&preserve_grade_info();
+ 	    $result.=&preserve_grade_info();
+ 	    $result.=&internal_location();
+ 	    $result.=$form_tag_start."\t".
+ 		'<input type="hidden" name="submitted" value="yes" />';
+ 	    &Apache::lonxml::startredirection();
  	}
      } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
  	      $target eq 'webgrade') {
  	my $webgrade='yes';
  	if ($target eq 'webgrade') {
- 	    $result.=$head_tag_start.$body_tag_start;
+ 	    $result .= '<div class="LC_task">'."\n";
- 	    $result.='<br />Review'.&show_queue('reviewqueue');
+ 	    $result.= "\n".'<div class="LC_GRADING_task">'."\n".
- 	    $result.='<br />Grade'.&show_queue('gradingqueue');
+ 		'<script type="text/javascript"
- 	}
+                          src="/res/adm/includes/task_grading.js"></script>';
- 	# FIXME Blast! still need to reorg this, need to reshow the
+ 	    #$result.='<br />Review'.&show_queue('reviewqueue');
-         #       queue being reviewed once done with the grade pass...
+ 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
-         #       Hrrm, vaildation pass should perhaps say 'not_locked'
+ 	}
-         #       perhaps do a search if there is a key that is mine and if
-         #       there isn't reshow the queue....
+ 	my ($todo,$status_code,$msg)=&get_key_todo($target);
- 	my ($todo,$status_code)=&get_key_todo($target);
- 	&Apache::lonnet::logthis("got todo -$todo- stat -$status_code-");
  	if ($todo) {
  	    &setup_env_for_other_user($todo,$safeeval);
  	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
- Line 329  sub start_Task {
+ Line 728  sub start_Task {
  		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
  	    $form_tag_start.=
  		'<input type="hidden" name="gradingkey" value="'.
- 		&Apache::lonnet::escape($todo).'" />';
+ 		&escape($todo).'" />';
  	    $Apache::bridgetask::queue_key=$todo;
  	    &Apache::structuretags::initialize_storage();
  	    &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') {
- 		    $form_tag_start.=
- 			'<input type="hidden" name="queuemode" value="selected" />';
- 		}
  	    }
  	} else {
  	    if ($target eq 'webgrade') {
  		$result.="\n";
+ 		my $back='<p><a href="/adm/flip?postdata=return:">'.
+ 		    &mt('Return to resource').'</a></p>';
  		if      ($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') {
- 		    $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') {
- 		    $result.='<b>'.&mt("Unlocked the requested record.").'</b>';
+ 		    $result.='<b>'.&mt("Unlocked the requested record.")
+ 			.'</b>'.$back;
  		    $result.=&show_queue($env{'form.queue'},1);
  		} elsif ($status_code eq 'show_list') {
  		    $result.=&show_queue($env{'form.queue'},1);
+ 		} elsif ($status_code eq '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 {
- 		    $result.='<b>'.&mt("No user to be graded.").'</b>';
+ 		    $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
  		}
  	    }
  	    $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($env{'form.queue'})) {
+ 	    if ($webgrade eq 'yes') {
+ 		$result.=&submission_time_stamp();
+ 	    }
  	    $result.=$form_tag_start;
  	    $result.='<input type="hidden" name="webgrade" value="'.
  		$webgrade.'" />';
  	    $result.='<input type="hidden" name="queue" value="'.
  		$env{'form.queue'}.'" />';
+ 	    if ($env{'form.regrade'}) {
+ 		$result.='<input type="hidden" name="regrade" value="'.
+ 		    $env{'form.regrade'}.'" />';
+ 	    }
+ 	    if ($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') { $result.=&webgrade_standard_info(); }
  	}
+ 	if ($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 />";
+ 	my $temp=&Apache::edit::insertlist($target,$token);
+ 	$result.=$temp;
      } else {
  	# page_start returned a starting result, delete it if we don't need it
  	$result = '';
- Line 374  sub start_Task {
+ Line 822  sub start_Task {
      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 $end_time;
+ }
  sub get_key_todo {
      my ($target)=@_;
      my $todo;
      if (defined($env{'form.reviewasubmission'})) {
- 	&Apache::lonnet::logthis("review a submission....");
+ 	&Apache::lonxml::debug("review a submission....");
  	$env{'form.queue'}='reviewqueue';
  	return (undef,'show_list');
      }
- Line 390  sub get_key_todo {
+ Line 852  sub get_key_todo {
  	return (undef,'show_list');
      }
+     if (defined($env{'form.regradeasubmission'})) {
+ 	&Apache::lonxml::debug("regrade a grading....");
+ 	$env{'form.queue'}='none';
+ 	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 = $env{'form.gradinguser'};
+ 	my $udom  = $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'};
      if (!defined($queue)) {
  	$env{'form.queue'}=$queue='gradingqueue';
      }
-     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
+     my $gradingkey=&unescape($env{'form.gradingkey'});
+     if ($env{'form.queue'} eq 'none') {
+ 	if (defined($env{'form.gradingkey'})) {
+ 	    if ($target eq 'webgrade') {
+ 		if ($env{'form.stop'}) {
+ 		    return (undef,'stop');
+ 		} elsif ($env{'form.cancel'}) {
+ 		    return (undef,'cancel');
+ 		} elsif ($env{'form.next'}) {
+ 		    return (undef,'select_user');
+ 		}
+ 	    }
+ 	    return ($gradingkey,'selected');
+ 	} else {
+ 	    return (undef,'select_user');
+ 	}
+     }
      if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
  	&& !defined($env{'form.gradingaction'})
  	&& $env{'form.queuemode'} eq 'selected') {
  	my $who=&queue_key_locked($queue,$gradingkey);
- 	my $me=$env{'user.name'}.'@'.$env{'user.domain'};
  	if ($who eq $me) {
  	    &Apache::lonxml::debug("Found a key was given to me");
  	    return ($gradingkey,'selected');
- Line 435  sub get_key_todo {
+ Line 985  sub get_key_todo {
      if ($env{'form.queuemode'} ne 'selected') {
  	# don't get something new from the queue if they hit the stop button
-     	if (!($env{'form.stop'} && $target eq 'webgrade')
+     	if (!(($env{'form.cancel'} || $env{'form.stop'})
+ 	      && $target eq 'webgrade')
  	    && !$env{'form.gradingaction'}) {
  	    &Apache::lonxml::debug("Getting anew $queue");
  	    return (&get_from_queue($queue));
- Line 446  sub get_key_todo {
+ Line 997  sub get_key_todo {
      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 {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
      my $result='';
- Line 453  sub end_Task {
+ Line 1014  sub end_Task {
      my ($version,$previous)=&get_version();
      if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
  	$target eq 'tex') {
- 	if (
+ 	if ($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 ($status eq 'CAN_ANSWER' && !$previous) {
+ 		if (&show_task($status,$previous)) {
+ 		    $result.=&Apache::lonxml::endredirection();
+ 		}
+ 		if ($status eq 'CAN_ANSWER' && !$previous &&
+ 		    !$env{'form.donescreen'}) {
  		    $result.="\n".'<table border="1">'.
  			&Apache::inputtags::file_selector("$version.0",
  							  "bridgetask","*",
- Line 467  sub end_Task {
+ Line 1029  sub end_Task {
  <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
  <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
  							  "</table>";
+ 		}
+ 		if (!$previous && $status ne 'SHOW_ANSWER' &&
+ 		    &show_task($status,$previous)) {
  		    $result.=&Apache::inputtags::gradestatus('0');
  		}
- 	    }
- 	    if ($target eq 'web' || $target eq 'webgrade') {
+ 		$result.='</form>';
- 		$result.=&Apache::lonxml::xmlend().'</html>';
+ 		if (!$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) &&
+ 		    $Apache::lonhomework::history{"resource.$version.0.status"} =~ /^(pass|fail)$/) {
+ 		    my $bt_status=$Apache::lonhomework::history{"resource.$version.0.status"};
+ 		    my $title=&Apache::lonnet::gettitle();
+ 		    my $start_time;
+ 		    my $slot_name=
+ 			$Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
+ 		    if ($slot_name) {
+ 			my %slot=&Apache::lonnet::get_slot($slot_name);
+ 			$start_time=$slot{'starttime'}
+ 		    } 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')  {
+ 			$status.='<h2>You passed the '.$title.' given on '.
+ 			    $start_time.'</h2>';
+ 			$status.=$question_status;
+ 		    }
+ 		    if ($bt_status eq 'fail')  {
+ 			$status.='<h2>You did not pass the '.$title.' given on '.
+ 			    $start_time.'</h2>';
+ 			$status.=$question_status;
+ 			if (!$previous) {
+ 			    $status.=&add_request_another_attempt_button();
+ 			}
+ 		    }
+ 		    $status.="\n".'</div>'."\n";
+ 		    foreach my $id (@{$dimension{$dim}{'criterias'}}) {
+ 			my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
+ 			if ($type eq 'dimension') {
+ 			    $result.=$dimension{$id}{'result'};
+ 			    next;
+ 			}
+ 			my $criteria =
+ 			    &nested_parse(\$dimension{$dim}{'criteria.'.$id},
+ 					  [@_]);
+ 			$status .= &layout_web_Criteria($dim,$id,$criteria);
+ 		    }
+ 		    my $internal_location=&internal_location();
+ 		    $result=~s/\Q$internal_location\E/$status/;
+ 		}
+ 		$result.="\n</div>\n".
+ 		    &Apache::loncommon::end_page({'discussion' => 1});
  	    }
  	}
- 	if ($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 $award='SUBMITTED';
  	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
  						    'portfiles',\$award);
- Line 487  sub end_Task {
+ Line 1136  sub end_Task {
  		$Apache::lonhomework::results{"resource.0.award"}=
  		    $Apache::lonhomework::results{"resource.$version.0.award"}=
  		    $award;
+ 		$Apache::lonhomework::results{"resource.0.submission"}=
+ 		    $Apache::lonhomework::results{"resource.$version.0.submission"}='';
+ 	    } else {
+ 		delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
+ 		$award = '';
  	    }
  	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
  	    &Apache::structuretags::finalize_storage();
  	    if ($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 $optional_required=
  		&Apache::lonxml::get_param('OptionalRequired',$parstack,
  					   $safeeval);
- Line 503  sub end_Task {
+ Line 1162  sub end_Task {
  	    my $ungraded=0;
  	    my $review=0;
  	    &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=
- 		    $Apache::lonhomework::results{"resource.$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 ($status eq 'pass') {
  		    if (!$mandatory) { $optional_passed++; }
  		} elsif ($status eq 'fail') {
  		    if ($mandatory) { $mandatory_failed++; }
- 		} elsif ($status eq 'ungraded') {
- 		    $ungraded++;
  		} elsif ($status eq 'review') {
  		    $review++;
- 		}
+ 		} elsif ($status eq 'ungraded') {
+ 		    $ungraded++;
+ 		} else {
+ 		    $ungraded++;
+ 		}
  	    }
  	    if ($optional_passed < $optional_required) {
  		$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) {
+ 		$Apache::lonhomework::results{"resource.$version.0.status"}='review';
+ 	    } elsif ($ungraded) {
+ 		$Apache::lonhomework::results{"resource.$version.0.status"}='ungraded';
+ 	    } elsif ($mandatory_failed) {
+ 		$Apache::lonhomework::results{"resource.$version.0.status"}='fail';
+ 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
+ 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
+ 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
+ 		my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
+ 		if ($env{'form.regrade'} ne 'yes') {
+ 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
+ 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
+ 		    &Apache::grades::version_portfiles(
+ 						       \%Apache::lonhomework::results,
+ 						       ["$version.0.bridgetask"],$courseid,
+ 						       $symb,$udom,$uname,
+ 						       ["$version.0.bridgetask"]);
+ 		}
+ 	    } else {
+ 		$Apache::lonhomework::results{"resource.$version.0.status"}='pass';
+ 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
+ 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
+ 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
+ 		my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
+ 		if ($env{'form.regrade'} ne 'yes') {
+ 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
+ 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
+ 		    &Apache::grades::version_portfiles(
+ 						       \%Apache::lonhomework::results,
+ 						       ["$version.0.bridgetask"],$courseid,
+ 						       $symb,$udom,$uname,
+ 						       ["$version.0.bridgetask"]);
+ 		}
+ 	    }
+ 	    $Apache::lonhomework::results{"resource.0.status"}=
+ 		$Apache::lonhomework::results{"resource.$version.0.status"};
+ 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
+ 		$Apache::lonhomework::results{"resource.0.award"}=
+ 		    $Apache::lonhomework::results{"resource.$version.0.award"};
+ 		$Apache::lonhomework::results{"resource.0.awarded"}=
+ 		    $Apache::lonhomework::results{"resource.$version.0.awarded"};
+ 		$Apache::lonhomework::results{"resource.0.solved"}=
+ 		    $Apache::lonhomework::results{"resource.$version.0.solved"};
+ 	    }
+ 	    &minimize_storage();
+ 	    &Apache::structuretags::finalize_storage();
+ 	    # data stored, now handle queue
  	    if ($review) {
- 		$Apache::lonhomework::results{"resource.$version.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('gradingqueue','reviewqueue');
+ 		    if ($env{'form.queue'} ne 'none') {
+ 			&move_between_queues($env{'form.queue'},'reviewqueue');
+ 		    } else {
+ 			&add_to_queue('reviewqueue',\%queue_data);
+ 		    }
  		}
  	    } elsif ($ungraded) {
- 		$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
  		if ($env{'form.queue'} eq 'reviewqueue') {
  		    &Apache::lonxml::debug("moving back.");
- 		    &move_between_queues('reviewqueue','gradingqueue');
+ 		    &move_between_queues($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) {
- 		$Apache::lonhomework::results{"resource.$version.status"}='fail';
- 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
- 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
- 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
  		&remove_from_queue($env{'form.queue'});
- 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
- 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
- 		    $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
- 		&Apache::grades::version_portfiles(
- 					\%Apache::lonhomework::results,
- 					 ["$version.0.bridgetask"],$courseid,
- 					 $symb,$udom,$uname,
- 					 ["$version.0.bridgetask"]);
  	    } else {
- 		$Apache::lonhomework::results{"resource.$version.status"}='pass';
- 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
- 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
- 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
  		&remove_from_queue($env{'form.queue'});
- 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
- 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
- 		    $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
- 		&Apache::grades::version_portfiles(
- 					\%Apache::lonhomework::results,
- 					 ["$version.0.bridgetask"],$courseid,
- 					 $symb,$udom,$uname,
- 					 ["$version.0.bridgetask"]);
- 	    }
- 	    $Apache::lonhomework::results{"resource.status"}=
- 		$Apache::lonhomework::results{"resource.$version.status"};
- 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
- 		$Apache::lonhomework::results{"resource.0.award"}=
- 		    $Apache::lonhomework::results{"resource.$version.award"};
- 		$Apache::lonhomework::results{"resource.0.awarded"}=
- 		    $Apache::lonhomework::results{"resource.$version.awarded"};
- 		$Apache::lonhomework::results{"resource.0.solved"}=
- 		    $Apache::lonhomework::results{"resource.$version.solved"};
  	    }
+ 	}
+ 	if (exists($Apache::lonhomework::results{'INTERNAL_store'})) {
+ 	    # instance generation occured and hasn't yet been stored
  	    &Apache::structuretags::finalize_storage();
  	}
      } elsif ($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="'.
  	#    &mt('Save &amp; Next').'" /> ';
  	#$result.='<input type="submit" name="end" value="'.
- Line 593  sub end_Task {
+ Line 1312  sub end_Task {
  	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
  	#$result.='<input type="submit" name="save" value="'.
  	#    &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') {
- 	$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') {
+ 	&Apache::structuretags::reset_problem_globals('Task');
+ 	undef($Apache::lonhomework::parsing_a_task);
+ 	return ('','no');
      }
+     &Apache::structuretags::reset_problem_globals('Task');
      undef($Apache::lonhomework::parsing_a_task);
      return $result;
  }
  sub move_between_queues {
      my ($src_queue,$dest_queue)=@_;
-     my $cur_data=&get_queue_data($src_queue);
+     my $cur_data;
-     if (!$cur_data) { return 'not_exist'; }
+     if ($src_queue ne 'none') {
-     my $result=&add_to_queue($dest_queue,$cur_data->[0]);
+ 	$cur_data=&get_queue_data($src_queue);
+ 	if (!$cur_data) { return 'not_exist'; }
+     } else {
+ 	$cur_data = ['none'];
+     }
+     my $result=&add_to_queue($dest_queue,$cur_data);
      if ($result ne 'ok') {
  	return $result;
      }
- Line 617  sub move_between_queues {
+ Line 1353  sub move_between_queues {
  sub check_queue_unlock {
      my ($queue,$key,$allow_not_me)=@_;
-     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
+     if ($queue eq 'none') { return 'ok'; }
+     my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
      if (!defined($key)) {
- 	$key="$symb\0queue\0$uname\@$udom";
+ 	$key="$symb\0queue\0$uname:$udom";
      }
      my $cnum=$env{'course.'.$cid.'.num'};
      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,$cnum);
      if  ($who eq $me) {
+ 	&Apache::lonxml::debug("unlocking my own $who");
  	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
      } elsif ($allow_not_me) {
  	&Apache::lonxml::debug("unlocking $who by $me");
- Line 634  sub check_queue_unlock {
+ Line 1372  sub check_queue_unlock {
      return 'not_owner';
  }
+ sub in_queue {
+     my ($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 {
-     my ($queue)=@_;
+     my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
-     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
+     if ($queue eq 'none') { return 'ok'; }
-     my $cnum=$env{'course.'.$cid.'.num'};
+     if (!defined($symb) || !defined($cdom) || !defined($cnum)
-     my $cdom=$env{'course.'.$cid.'.domain'};
+ 	|| !defined($udom) || !defined($uname)) {
-     my $key="$symb\0queue\0$uname\@$udom";
+ 	($symb,my $cid,$udom,$uname)=&Apache::lonnet::whichuser();
+ 	$cnum=$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");
      return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
  }
- Line 656  sub setup_env_for_other_user {
+ Line 1420  sub setup_env_for_other_user {
  }
  sub get_queue_data {
-     my ($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 $cdom=$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);
      if ($key eq $todo && ref($value)) {
  	return $value;
- Line 668  sub get_queue_data {
+ Line 1436  sub get_queue_data {
      return undef;
  }
+ sub check_queue_for_key {
+     my ($cdom,$cnum,$queue,$todo)=@_;
+     my %results=
+ 	&Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
+     if (exists($results{$todo}) && ref($results{$todo})) {
+ 	if (defined($results{"$todo\0locked"})) {
+ 	    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 ($due_date > time) {
+ 		return 'in_progress';
+ 	    }
+ 	}
+ 	return 'enqueued';
+     }
+     return undef;
+ }
  sub add_to_queue {
-     my ($queue,$slot_name)=@_;
+     my ($queue,$user_data)=@_;
-     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
+     if ($queue eq 'none') { return 'ok'; }
+     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 $cdom=$env{'course.'.$cid.'.domain'};
      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 $classlist;
  }
  sub show_queue {
      my ($queue,$with_selects)=@_;
      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 $cdom=$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 %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
      my ($tmp)=%queue;
      if ($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 $key (sort(keys(%queue))) {
+ 	my ($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) {
- 	    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) {
- 	    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{$key})."</td></tr>";
  	} elsif ($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) {
- 		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"})) {
- 		    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,$description)=('resume',&mt('Resume'));
  		    } else {
  			($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)) {
  		    $result.=(<<FORM);
+ <td>$status</td>
  <td>
- <form method="POST">
+ <form style="display: inline" method="post">
   <input type="hidden" name="gradingkey" value="$ekey" />
   <input type="hidden" name="queue" value="$queue" />
   <input type="hidden" name="gradingaction" value="$action" />
   <input type="hidden" name="webgrade" value="no" />
   <input type="hidden" name="queuemode" value="selected" />
   <input type="submit" name="submit" value="$description" />
+  $seclist
  </form>
  </td>
  FORM
+                 } elsif (!$can_view && ($end_time ne '' && time > $end_time)) {
+ 		    $result.='<td>'.&mt("Not gradable").'</td><td>&nbsp;</td>'
                  } 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 $result;
  }
  sub get_queue_counts {
      my ($queue)=@_;
      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 $cdom=$env{'course.'.$cid.'.domain'};
+     my $classlist=&get_limited_classlist();
      my $regexp="^$symb\0";
      my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
      my ($tmp)=%queue;
- Line 763  sub get_queue_counts {
+ Line 1652  sub get_queue_counts {
  	return (0,0,0);
      }
      my ($entries,$ready_to_grade,$locks)=(0,0,0);
+     my %slot_cache;
      foreach my $key (sort(keys(%queue))) {
+ 	my ($symb,$uname,$udom) = &decode_queue_key($key);
+ 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
  	if ($key=~/locked$/) {
  	    $locks++;
  	} elsif ($key=~/timestamp$/) {
  	    #ignore
  	} elsif ($key!~/(timestamp|locked)$/) {
- 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
  	    $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) {
+ 		    $ready_to_grade++;
+ 		}
  	    }
  	}
      }
      return ($entries,$ready_to_grade,$locks);
  }
+ sub encode_queue_key {
+     my ($symb,$udom,$uname)=@_;
+     return "$symb\0queue\0$uname:$udom";
+ }
  sub decode_queue_key {
      my ($key)=@_;
      my ($symb,undef,$user) = split("\0",$key);
-     my ($uname,$udom) = split('@',$user);
+     my ($uname,$udom) = split(':',$user);
      return ($symb,$uname,$udom);
  }
  sub queue_key_locked {
      my ($queue,$key,$cdom,$cnum)=@_;
      if (!defined($cdom) || !defined($cnum)) {
- 	my (undef,$cid)=&Apache::lonxml::whichuser();
+ 	my (undef,$cid)=&Apache::lonnet::whichuser();
  	$cnum=$env{'course.'.$cid.'.num'};
  	$cdom=$env{'course.'.$cid.'.domain'};
      }
      my ($key_locked,$value)=
  	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
      if ($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 $queue_entry->{'slot'};
+ 	}
+ 	return undef;
      }
      return undef;
  }
  sub pick_from_queue_data {
-     my ($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)) {
+ 	if ($key =~ /\0locked$/) { next; }
+ 	if ($key =~ /\0timestamp$/) { next; }
  	my ($symb,$uname,$udom)=&decode_queue_key($key);
+ 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
  	if ($check_section) {
- 	    my $section=&Apache::lonnet::getsection($uname,$udom);
+ 	    my $section =
+ 		$classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_SECTION()];
  	    if ($section eq $check_section) {
  		&Apache::lonxml::debug("my sec");
  		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.");
  	    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 $possible[0][0];
      }
      return undef;
  }
+ sub get_lock_info {
+     my ($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 $lock_info;
+ 	}
+     }
+     return;
+ }
  sub find_mid_grade {
      my ($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) {
  	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
  	if ($who eq $me) { return $todo; }
- Line 840  sub find_mid_grade {
+ Line 1813  sub find_mid_grade {
      my $regexp="^$symb\0.*\0locked\$";
      my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
      foreach my $key (keys(%locks)) {
- 	my $who=$locks{$key};
+ 	my $who= &get_lock_info($locks{$key});
  	if ($who eq $me) {
  	    $todo=$key;
  	    $todo=~s/\0locked$//;
- Line 852  sub find_mid_grade {
+ Line 1825  sub find_mid_grade {
  sub lock_key {
      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 $cdom=$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);
      &Apache::lonxml::debug("success $success $todo");
      if ($success eq 'ok') {
- Line 865  sub lock_key {
+ Line 1838  sub lock_key {
      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 {
      my ($queue)=@_;
      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 $cdom=$env{'course.'.$cid.'.domain'};
      my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
      &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
      if ($todo) { return $todo; }
+     my $attempts=0;
+     my $classlist=&get_limited_classlist();
      while (1) {
+ 	if ($attempts > 2) {
+ 	    # tried twice to get a queue entry, giving up
+ 	    return (undef,'unable');
+ 	}
  	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");
  	my $regexp="^$symb\0queue\0";
+ 	#my $range= ($attempts < 1 ) ? '0-100' : '0-400';
  	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
  	#make a pass looking for a user _not_ in my section
  	if ($env{'request.course.sec'}) {
  	    &Apache::lonxml::debug("sce");
  	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
- 					\%queue,$cdom,$cnum);
+ 					\%queue,$cdom,$cnum,$classlist);
  	    &Apache::lonxml::debug("sce $todo");
  	}
  	# no one _not_ in our section so look for any user that is
  	# ready for grading
  	if (!$todo) {
  	    &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");
  	}
  	# no user to grade
- Line 901  sub get_from_queue {
+ Line 1908  sub get_from_queue {
  	&Apache::lonxml::debug("got $todo");
  	# otherwise found someone so lets try to lock them
  	# unless someone else already picked them
- 	if (!&lock_key($queue,$todo)) { next; }
+ 	if (!&lock_key($queue,$todo)) {
+ 	    $attempts++;
+ 	    next;
+ 	}
  	my (undef,$endtime)=
  	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
  				 $cdom,$cnum);
- Line 920  sub get_from_queue {
+ Line 1930  sub get_from_queue {
  		&Apache::lonnet::del($queue,["$todo\0locked"],
  				     $cdom,$cnum);
  		&Apache::lonxml::debug("del");
+ 		$attempts++;
  		next;
  	    }
  	}
- Line 929  sub get_from_queue {
+ Line 1940  sub get_from_queue {
      return $todo;
  }
+ sub select_user {
+     my ($symb,$cid)=&Apache::lonnet::whichuser();
+     my @chosen_sections=
+ 	&Apache::loncommon::get_env_multiple('form.chosensections');
+     my $classlist = &get_limited_classlist(\@chosen_sections);
+     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 $student (sort {lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]) cmp lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]) } (keys(%$classlist))) {
+ 	my ($uname,$udom) = split(/:/,$student);
+ 	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 $cannot_grade;
+ 	if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
+ 	    $queue = 'reviewqueue';
+ 	    if ($status{'reviewqueue'} eq 'in_progress') {
+ 		$cannot_grade=1;
+ 	    }
+ 	} elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
+ 	    $queue = 'gradingqueue';
+ 	    if ($status{'gradingqueue'} eq 'in_progress') {
+ 		$cannot_grade=1;
+ 	    }
+ 	}
+ 	my $todo =
+ 	    &escape(&encode_queue_key($symb,$udom,$uname));
+ 	if ($cannot_grade) {
+ 	    $result.=&Apache::loncommon::start_data_table_row().
+ 		'<td>&nbsp;</td><td>'.$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();
+ 	    $result.=<<RESULT;
+   <td>
+     <form style="display: inline" method="post">
+       <input type="hidden" name="gradingkey" value="$todo" />
+       <input type="hidden" name="queue" value="$queue" />
+       <input type="hidden" name="webgrade" value="no" />
+       <input type="hidden" name="regrade" value="yes" />
+       <input type="submit" name="submit" value="Regrade" />
+       $seclist
+     </form>
+   <td>$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()] <tt>($student)</tt></td>
+   <td>
+ RESULT
+         }
+         if ($status{'status'} eq 'pass') {
+ 	    $result .= '<font color="green">'.&mt('Passed').'</font>';
+ 	} elsif ($status{'status'} eq 'fail') {
+ 	    $result .= '<font color="red">'.&mt('Failed').'</font>';
+ 	} elsif ($status{'status'} eq 'review') {
+ 	    $result .= '<font color="blue">'.&mt('Under Review').'</font>';
+ 	} elsif ($status{'status'} eq 'ungraded') {
+ 	    $result .= &mt('Ungraded');
+ 	} elsif ($status{'status'} ne '') {
+ 	    $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
+ 	} else {
+ 	    $result.="&nbsp;";
+ 	}
+ 	if ($status{'version'}) {
+ 	    $result .= ' '.&mt('Version').' '.$status{'version'};
+ 	}
+ 	if ($status{'grader'}) {
+ 	    $result .= ' '.&mt('(Graded by [_1])',$status{'grader'}).' ';
+ 	}
+ 	$result.= '</td><td>';
+ 	if ($status{'reviewqueue'} eq 'enqueued') {
+ 	    $result .= &mt('Awaiting Review');
+ 	} elsif ($status{'reviewqueue'} eq 'locked') {
+ 	    $result .= &mt('Under Review');
+ 	} elsif ($status{'reviewqueue'} eq 'in_progress') {
+ 	    $result .= &mt('Still being worked on.');
+ 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
+ 	    $result .= &mt('Awaiting Grading');
+ 	} elsif ($status{'gradingqueue'} eq 'locked') {
+ 	    $result .= &mt('Being Graded');
+ 	} elsif ($status{'gradingqueue'} eq 'in_progress') {
+ 	    $result .= &mt('Still being worked on.');
+ 	} else {
+ 	    $result.="&nbsp;";
+ 	}
+ 	$result.= '</td>'.&Apache::loncommon::end_data_table_row();
+     }
+     $result.=&Apache::loncommon::end_data_table();
+     return $result;
+ }
+ sub get_student_status {
+     my ($symb,$cdom,$cnum,$udom,$uname,$type)=@_;
+     my %status;
+     if ($type eq 'Task') {
+ 	my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
+ 					  $udom,$uname);
+ 	$status{'status'}=$record{'resource.0.status'};
+ 	$status{'version'}=$record{'resource.0.version'};
+ 	$status{'grader'}=$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;
+ }
  sub start_ClosingParagraph {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
      my $result;
- Line 949  sub end_ClosingParagraph {
+ Line 2084  sub end_ClosingParagraph {
      return $result;
  }
+ sub get_dim_id {
+     if (@Apache::bridgetask::dimension) {
+ 	return $Apache::bridgetask::dimension[-1];
+     } else {
+ 	return $top;
+     }
+ }
  sub get_id {
      my ($parstack,$safeeval)=@_;
      my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
- Line 956  sub get_id {
+ Line 2099  sub get_id {
      return $id;
  }
- my %dimension;
+ sub start_Setup {
- sub start_Dimension {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
-     undef(%dimension);
+     #undef(%dimension);
-     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);
+     &Apache::lonxml::startredirection();
-     undef(@Apache::bridgetask::instance);
+     return;# &internal_location($dim);
-     $Apache::bridgetask::dimensionmandatory{$dim_id}=
+ }
- 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
+ {
+     my @allowed;
+     sub enable_dimension_parsing {
+ 	my ($id) = @_;
+ 	push(@allowed,$id);
+     }
+     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 $allowed[-1]);
+     }
+ }
+ sub start_Question { return &start_Dimension(@_); }
+ sub start_Dimension {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+     my $dim = &get_id($parstack,$safeeval);
+     my $previous_dim;
+     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);
+     }
+     return;# &internal_location($dim);
+ }
+ sub start_QuestionText {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+     my $dim = &get_dim_id();
+     my $text=&Apache::lonxml::get_all_text('/questiontext',$parser,$style);
+     if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
+ 	$dimension{$dim}{'questiontext'}=$text;
+     }
      return '';
  }
- sub get_instance {
+ sub end_QuestionText {
-     &Apache::response::pushrandomnumber();
+     return '';
-     my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
-     my $num=@order;
-     my $version=&get_version();
-     my $which=($version-1)%$num;
-     return $order[$which];
  }
- {
+ sub get_instance {
-     my $last_link;
+     my ($dim)=@_;
-     sub end_Dimension {
+     my $rand_alg=&Apache::lonnet::get_rand_alg();
- 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
- 	my $result;
+ 	$rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
- 	my $dim=&get_id($parstack,$safeeval);
+ 	$rand_alg eq '64bit4' ) {
- 	my $instance=&get_instance();
+ 	&Apache::response::pushrandomnumber();
+ 	my @order=&Math::Random::random_permutation(@{$dimension{$dim}{'instances'}});
+ 	my $num=@order;
  	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; }
- 		foreach my $id (@{$dimension{$instance.'.criterias'}}) {
- 		    my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
+ 	&Apache::response::pushrandomnumber();
- 		    my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
+ 	if (ref($dimension{$dim}{'instances'}) eq 'ARRAY') {
- 		    $result.='<table border="1"><tr><td>';
+ 	    my @instances = @{$dimension{$dim}{'instances'}};
- 		    if ($status eq 'fail') {
+ 	    # remove disabled instances
- 			$result.='<font color="red">'.&mt('Did not pass').'</font>';
+ 	    for (my $i=0; $i < $#instances; $i++) {
- 		    } elsif ($status eq 'pass') {
+ 		if ($dimension{$dim}{$instances[$i].'.disabled'}) {
- 			$result.='<font color="green">'.&mt('Passed').'</font>';
+ 		    splice(@instances,$i,1);
- 		    } else {
+ 		    $i--;
- 			&Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
- 		    }
- 		    $result.='</td></tr><tr><td>';
- 		    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
- 			$result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
- 		    }
- 		    $result.=$dimension{$instance.'.criteria.'.$id}.
- 			'</td></tr></table>';
  		}
  	    }
- 	} elsif ($target eq 'webgrade') {
+ 	    @instances = &Math::Random::random_permutation(@instances);
- 	    # in case of any side effects that we need
+ 	    $instance  = $instances[($version-1)%scalar(@instances)];
- 	    @Apache::scripttag::parser_env = @_;
+ 	    if ($version =~ /^\d$/) {
- 	    &Apache::scripttag::xmlparse($dimension{'intro'});
+ 		$Apache::lonhomework::results{"resource.$version.0.$dim.instance"} =
- 	    @Apache::scripttag::parser_env = @_;
+ 		    $instance;
- 	    &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
+ 		$Apache::lonhomework::results{'INTERNAL_store'} = 1;
- 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
+ 	    }
- 		my $link='criteria_'.$instance.'_'.$id;
+ 	}
- 		my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
+ 	&Apache::response::poprandomnumber();
- 		$result.='<tr><td width="100%" valign="top">'.
+ 	return $instance;
- 		    '<a name="'.$link.'" />'.
+     }
- 		    '<a name="next_'.$last_link.'" />'.
+ }
- 		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
- 		@Apache::scripttag::parser_env = @_;
+ sub get_criteria {
- 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
+     my ($what,$version,$dim,$id) = @_;
- 		$result.='</textarea>'.
+     my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
- 		    #$dimension{$instance.'.criteria.'.$id}.
+     my $prefix = ($type eq 'criteria' && $dim ne $top) ? "$dim.$id"
- 		    '</td>'.
+ 	                                               : "$id";
- 		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
+     my $entry = "resource.$version.0.$prefix.$what";
- 		    '<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>'.
+     if (exists($Apache::lonhomework::results{$entry})) {
- 		    '</td>'.
+ 	return $Apache::lonhomework::results{$entry};
- 		    '<td>'.
+     }
- 		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
+     return $Apache::lonhomework::history{$entry};
- 		    '<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 />'.
+ sub link {
- 		    '</td>'.
+     my ($id) = @_;
- 		    '<td>'.
+     $id =~ s/\./_/g;
- 		    '<a href="#'.$last_link.'">Prev</a><br />'.
+     return 'LC_GRADING_criteria_'.$id;
- 		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
+ }
- 		    '<input type="submit" name="next" value="'.
+ sub end_Question { return &end_Dimension(@_); }
- 		    &mt('Done').'" /> '.
+ sub end_Dimension {
- 		    '<input type="submit" name="stop" value="'.
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- 		    &mt('Stop').'" /> '.
+     my $result=&Apache::lonxml::endredirection();
- 		    '</td></tr>';
+     my $dim=&get_id($parstack,$safeeval);
- 		$result.='<tr><td colspan="4">';
+     if (&skip_dimension_parsing($dim)) {
- 		my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
+ 	&disable_dimension_parsing($dim);
- 		my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
+ 	pop(@Apache::bridgetask::dimension);
- 		foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {
+ 	return;
- 		    my $file=$file_url.$partial_file;
+     }
- 		    &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
+     my $instance=&get_instance($dim);
- 		    $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
+     my $version=&get_version();
- 			&Apache::loncommon::icon($file).'" border=0"> '.$file.
+     if ($target eq 'web') {
- 			'</a>';
+ 	$result .= &nested_parse(\$dimension{$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 $mandatory='Mandatory';
+ 		if (&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval) eq 'N') {
+ 		    $mandatory='Optional';
+ 		}
+ 		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') {
+ 		    $dim_info.='<h3>'.$ucquestion.' : you passed the above '.$mandatory.' '.$question.'</h3>';
+ 		}
+ 		if ($dim_status eq 'fail') {
+ 		    $dim_info.='<h3>'.$ucquestion.' : you did not pass the above '.$mandatory.' '.$question.'</h3>';
+ 		}
+ 		my %counts = &get_counts($dim,$instance,$parstack,
+ 					 $safeeval);
+ 		$dim_info.="\n\t<p>"
+ 		    .&question_status_message(\%counts,
+ 					      $dimension{$dim}{'depth'})
+ 		    ."</p>\n</div>\n";
+ 		foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
+ 				@{$dimension{$dim}{'criterias'}}) {
+ 		    my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
+ 		    if ($type eq 'dimension') {
+ 			if (defined($dimension{$id}{'result'})) {
+ 			    $result.=$dimension{$id}{'result'};
+ 			    next;
+ 			} else {
+ 			    $dim_info .=
+ 				&nested_parse(\$dimension{$dim}{'criteria.'.$id},
+ 					      [@_],{'set_dim_id' => $id});
+ 			}
+ 		    } else {
+ 			my $criteria =
+ 			    &nested_parse(\$dimension{$dim}{'criteria.'.$id},
+ 					  [@_]);
+ 			$dim_info .= &layout_web_Criteria($dim,$id,$criteria);
+ 		    }
  		}
- 		$result.='</td></tr>';
+ 		# puts the results at the end of the dimension
- 		$last_link=$link;
+ 		$result .= $dim_info;
+ 		# puts the results at the beginning of the dimension
+ 		# 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 {
- 		    $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 {
- 		$Apache::lonhomework::results{"resource.$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.$dim.status"}=
+ 		'pass';
+ 	}
+     } else {
+ 	# any other targets no output
+ 	undef($result);
      }
+     &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 $result=&Apache::lonxml::endredirection();
+     my $dim=&get_id($parstack,$safeeval);
+     my $instance=&get_instance($dim);
+     my $version=&get_version();
+     if ($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 $result;
-     if ($target eq 'web' || $target eq 'webgrade') {
+     my $dim = &get_dim_id();
- 	if ($tagstack->[-2] eq 'Dimension') {
+     if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
- 	    $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser);
+ 	if ($tagstack->[-2] eq 'Dimension' || $tagstack->[-2] eq 'Question' ) {
+ 	    $dimension{$dim}{'intro'}=
- 	} elsif ($target eq 'webgrade') {
+ 		&Apache::lonxml::get_all_text('/introparagraph',
- 	    &Apache::lonxml::get_all_text('/introparagraph',$parser);
+ 					      $parser,$style);
+        	} elsif ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
+ 	    &Apache::lonxml::startredirection();
  	}
      }
- Line 1119  sub start_IntroParagraph {
+ Line 2641  sub start_IntroParagraph {
  }
  sub end_IntroParagraph {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+     if ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
+ 	my $result = &Apache::lonxml::endredirection();
+     }
  }
  sub start_Instance {
      my ($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);
-     $dimension{$id.'.optionalrequired'}=
+     $dimension{$dim}{$id.'.optionalrequired'}=
  	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
+     my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
+     if (lc($disabled) eq 'yes') {
+ 	$dimension{$dim}{$id.'.disabled'}='1';
+     }
      return '';
  }
- Line 1136  sub end_Instance {
+ Line 2667  sub end_Instance {
  }
  sub start_InstanceText {
-     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-     my $instance_id=$Apache::bridgetask::instance[-1];
+     my $dim = &get_dim_id();
-     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser);
+     my $instance_id=$Apache::bridgetask::instance{$dim}[-1];
-     if ($target eq 'web' || $target eq 'webgrade') {
+     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser,$style);
- 	$dimension{$instance_id.'.text'}=$text;
+     if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
+ 	$dimension{$dim}{$instance_id.'.text'}=$text;
      }
      return '';
  }
- Line 1150  sub end_InstanceText {
+ Line 2682  sub end_InstanceText {
  }
  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 $criteria=&Apache::lonxml::get_all_text('/criteria',$parser,$style);
-     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser);
+     my $result = '';
      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
+ 	my $dim = &get_dim_id();
  	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);
+ 	}
      }
-     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 $result;
  }
  sub end_Criteria {
  }
+ sub start_GraderNote {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+     if ($target eq 'webgrade') {
+ 	return '<div class="LC_GRADING_gradernote"><b>'.
+ 	    &mt('Note to graders:').'</b>';
+     }
+     my $note=&Apache::lonxml::get_all_text('/gradernote',$parser,$style);
+     return;
+ }
+ sub end_GraderNote {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+     if ($target eq 'webgrade') {
+ 	return '</div>';
+     }
+     return;
+ }
  sub proctor_validation_screen {
      my ($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 $name=&Apache::loncommon::plainname($user,$domain);
- Line 1182  sub proctor_validation_screen {
+ Line 2838  sub proctor_validation_screen {
  <h2>Proctor Validation</h2>
      <p>Your room's proctor needs to validate your access to this resource.</p>
      $msg
- <form name="checkout" method="POST" action="$env{'request.uri'}">
+ <form name="checkout" method="post" action="$env{'request.uri'}">
  <input type="hidden" name="validate" value="yes" />
  <input type="hidden" name="submitted" value="yes" />
  <table>
- Line 1197  sub proctor_validation_screen {
+ Line 2853  sub proctor_validation_screen {
        <tr><td colspan="2">Student who should be logged in is:</td></tr>
        <tr><td>Name:</td><td>$name</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>
      </table>
    </tr></td>

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Removed from v.1.47
changed lines
	Added in v.1.220