--- loncom/homework/bridgetask.pm	2008/08/13 09:10:44	1.239
+++ loncom/homework/bridgetask.pm	2010/09/27 20:59:41	1.254
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: bridgetask.pm,v 1.239 2008/08/13 09:10:44 bisitz Exp $
+# $Id: bridgetask.pm,v 1.254 2010/09/27 20:59:41 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -82,7 +82,10 @@ sub proctor_check_auth {
 		}
 	    }
 	    if ($authenticated) {
-		&check_in($type,$user,$domain,$slot_name);
+		my $check = &check_in($type,$user,$domain,$slot_name);
+                if ($check =~ /^error:/) {
+                    return 0;
+                }
 		return 1;
 	    }
 	}
@@ -94,7 +97,10 @@ 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);
+	my $result = &check_in_sequence($user,$domain,$slot_name);
+        if ($result =~ /^error: /) {
+            return $result;
+        }
     } else {
 	&create_new_version($type,$user,$domain,$slot_name);
 	&Apache::structuretags::finalize_storage();
@@ -105,6 +111,9 @@ sub check_in {
 sub check_in_sequence {
     my ($user,$domain,$slot_name) = @_;
     my $navmap = Apache::lonnavmaps::navmap->new();
+    if (!defined($navmap)) {
+        return 'error: ';
+    }
     my ($symb) = &Apache::lonnet::whichuser();
     my ($map)  = &Apache::lonnet::decode_symb($symb);
     my @resources = 
@@ -306,7 +315,7 @@ sub add_request_another_attempt_button {
     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
     my $action='get_reservation';
     if ($slot_name) {
-	$text=&mt('Change reservation.');
+	$text=&mt('Change reservation');
 	$action='change_reservation';
 	my $description=&Apache::slotrequest::get_description($slot_name,
 							      $slot);
@@ -473,7 +482,7 @@ sub file_list {
 	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="'.
+	$file_list.='<li><span class="LC_nobreak"><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
 	    &Apache::loncommon::icon($file).'" alt="file icon" border="0" /> '.$file.
 	    '</a></span></li>'."\n";
     }
@@ -493,13 +502,13 @@ sub webgrade_standard_info {
 
     my $file_list = &file_list($Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"});
 
-    my %lt=('done'   => 'Next Item',
-	    'stop'   => 'Quit Grading',
-	    'fail'   => 'Fail Rest',
-	    'cancel' => 'Cancel',
-	    'submit' => 'Submit Grades',
-	    );
-    %lt=&Apache::lonlocal::texthash(%lt);
+    my %lt = &Apache::lonlocal::texthash(
+        'done'   => 'Next Item',
+        'stop'   => 'Quit Grading',
+        'fail'   => 'Fail Rest',
+        'cancel' => 'Cancel',
+        'submit' => 'Submit Grades',
+    );
 
     my $result=<<INFO;
   <div class="LC_GRADING_maincontrols">
@@ -545,7 +554,7 @@ sub done_screen {
                    .&mt('[_1]Nonexistent file:[_2]'
                        ,'<span class="LC_error"> '
                        ,'</span> <span class="LC_filename">'.$file.'</span>');
-	    $msg .= "<p>".&mt('Submitted non-existant file [_1]',$file)."</p>\n";
+	    $msg .= "<p>".&mt('Submitted non-existent file [_1]',$file)."</p>\n";
 	} else {
 	    $file = '<span class="LC_filename">'.$file.'</span>';
 	    $msg .= "<p>".&mt('Submitted file [_1]',$file)."</p>\n";
@@ -579,7 +588,7 @@ sub done_screen {
           .'<p><a href="/adm/logout">'.&mt('Logout').'</a></p>'
 .'<p><a href="/adm/roles">'.&mt('Change to a different course').'</a></p>'
 .$message_status
-.$comment_status
+.$comment_status;
 
 }
 
@@ -655,7 +664,11 @@ sub start_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);
+	    my $check = &check_in('Task',undef,undef,$slot_name);
+            if ($check =~ /^error: /) {
+                my $symb=&Apache::lonnet::symbread();
+                &Apache::lonnet::logthis("Error during self-checkin of version $version of Task (symb: $symb) using slot: $slot_name");   
+            }
 	    &add_to_queue('gradingqueue',{'type' => 'Task',
 					  'time' => time,
 					  'slot' => $slot_name});
@@ -685,7 +698,7 @@ sub start_Task {
 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
 		} elsif ($status eq 'NOT_IN_A_SLOT') {
 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
-		    $msg.=&add_request_another_attempt_button("Sign up for time to work.");
+		    $msg.=&add_request_another_attempt_button("Sign up for time to work");
 		} elsif ($status eq 'NEEDS_CHECKIN') {
 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
 			'</h1>'.&proctor_validation_screen($slot);
@@ -701,7 +714,7 @@ sub start_Task {
 		}
 		$result.=$msg.'<br />';
 	    } elsif ($target eq 'tex') {
-		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
+		$result.='\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
 		if ($status eq 'UNAVAILABLE') {
 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
 		} else {
@@ -771,6 +784,11 @@ sub start_Task {
 		    $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
 		} elsif ($status_code eq 'cancel') {
 		    $result.='<b>'.&mt("Cancelled grading.").'</b>'.$back;
+                } elsif ($status_code eq 'terminated') {
+                    $result.= '<b>'.&mt('Terminated grading').'</b><br />'.
+                              '<span class="LC_error">'.
+                              &mt('Grading for [_1] has not been saved because of a grading key mismatch.',
+                              '<tt>'.$env{'form.terminated'}.'</tt>').'</span><br />'.$back;
 		} elsif ($status_code eq 'never_versioned') {
 		    $result.='<b>'.
 			&mt("Requested user has never accessed the task.").
@@ -991,6 +1009,8 @@ sub get_key_todo {
 		    return (undef,'stop');
 		} elsif ($env{'form.cancel'}) {
 		    return (undef,'cancel');
+                } elsif ($env{'form.terminated'}) {
+                    return (undef, 'terminated');
 		} elsif ($env{'form.next'}) {
 		    return (undef,'select_user');
 		}
@@ -1036,13 +1056,17 @@ 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.cancel'} || $env{'form.stop'}) 
+    	if (!(($env{'form.cancel'} || $env{'form.stop'} || $env{'form.terminated'}) 
 	      && $target eq 'webgrade') 
 	    && !$env{'form.gradingaction'}) {
 	    &Apache::lonxml::debug("Getting anew $queue");
 	    return (&get_from_queue($queue));
 	} else {
-	    return (undef,'stop');
+            if ($env{'form.terminated'}) {
+                return (undef,'terminated');
+            } else {
+                return (undef,'stop');
+            }
 	}
     }
     return (undef,undef)
@@ -1072,14 +1096,21 @@ sub end_Task {
 		}
 		if ($status eq 'CAN_ANSWER' && !$previous && 
 		    !$env{'form.donescreen'}) {
-		    $result.="\n".'<table border="1">'.
+                    my ($portheader,$porttext);
+                    if ($Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"}) {
+                        $portheader = &mt('Submit Additional Portfolio Files for Grading');
+                        $porttext = &mt('Indicate which additional files from your portfolio are to be evaluated in grading this task.');
+                    } else {
+                        $portheader = &mt('Submit Portfolio Files for Grading');
+                        $porttext = &mt('Indicate the files from your portfolio to be evaluated in grading this task.');
+                    }
+		    $result.="\n".'<p>'.&Apache::lonhtmlcommon::start_pick_box().
 			&Apache::inputtags::file_selector("$version.0",
 							  "bridgetask","*",
 							  'portfolioonly',
-							  '
-<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>";
+                                                          '<h3>'.$portheader.'</h3><br />'.
+                                                          $porttext.'<br />').
+			&Apache::lonhtmlcommon::end_pick_box().'</p>';
 		}
 		if (!$previous && $status ne 'SHOW_ANSWER' &&
 		    &show_task($status,$previous)) {
@@ -1091,10 +1122,11 @@ sub end_Task {
 		if (!$previous && $status ne 'SHOW_ANSWER' &&
 		    &show_task($status,$previous)) {
 		    my $action = &Apache::lonenc::check_encrypt($env{'request.uri'});
+                    my $donetext = &mt('Done');
 		    $result.=<<DONEBUTTON;
 <form name="done" method="post" action="$action">
    <input type="hidden" name="donescreen" value="1" />
-   <input type="submit" value="Done" />
+   <input type="submit" value="$donetext" />
 </form>
 DONEBUTTON
                 }
@@ -1177,8 +1209,11 @@ DONEBUTTON
 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous
 	    && $status eq 'CAN_ANSWER') {
 	    my $award='SUBMITTED';
+            my $uploadedflag=0;
+            my $totalsize=0;
+            my @deletions = &Apache::loncommon::get_env_multiple('form.HWFILE'.$version.'_0_bridgetask_delete');
 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
-						    'portfiles',\$award);
+						    \$award,\$uploadedflag,\$totalsize,\@deletions);
 	    if ($award eq 'SUBMITTED' &&
 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
 		$Apache::lonhomework::results{"resource.0.tries"}=
@@ -1191,7 +1226,9 @@ DONEBUTTON
 		$Apache::lonhomework::results{"resource.0.submission"}=
 		    $Apache::lonhomework::results{"resource.$version.0.submission"}='';
 	    } else {
-		delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
+                unless($uploadedflag) {
+                    delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
+                }
 		$award = '';
 	    }
 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
@@ -1294,38 +1331,54 @@ DONEBUTTON
 		    $Apache::lonhomework::results{"resource.$version.0.solved"};
 	    }
 	    &minimize_storage();
-	    &Apache::structuretags::finalize_storage();
-	    
-	    # data stored, now handle queue
-	    if ($review) {
-		if ($env{'form.queue'} eq 'reviewqueue') {
-		    &check_queue_unlock($env{'form.queue'});
-		    &Apache::lonxml::debug(" still needs review not changing status.");
-		} else {
-		    if ($env{'form.queue'} ne 'none') {
-			&move_between_queues($env{'form.queue'},'reviewqueue');
+            my ($canstore,$domain,$name);
+            if ($env{'form.gradingkey'}) {
+                (my $symb,my $courseid,$domain,$name) =
+                    &Apache::lonnet::whichuser();
+                my $todo=&unescape($env{'form.gradingkey'});
+                my ($keysymb,$uname,$udom)=&decode_queue_key($todo);
+                if ($symb eq $keysymb) {
+                    if (($domain eq $udom) && ($name eq $uname)) {
+                        $canstore = 1;           
+                    }
+                }
+            }
+            if ($canstore) {
+	        &Apache::structuretags::finalize_storage();
+	        # data stored, now handle queue
+	        if ($review) {
+		    if ($env{'form.queue'} eq 'reviewqueue') {
+		        &check_queue_unlock($env{'form.queue'});
+		        &Apache::lonxml::debug(" still needs review not changing status.");
 		    } else {
-			&add_to_queue('reviewqueue',\%queue_data);
+		        if ($env{'form.queue'} ne 'none') {
+			    &move_between_queues($env{'form.queue'},'reviewqueue');
+		        } else {
+			    &add_to_queue('reviewqueue',\%queue_data);
+		        }
 		    }
-		}
-	    } elsif ($ungraded) {
-		if ($env{'form.queue'} eq 'reviewqueue') {
-		    &Apache::lonxml::debug("moving back.");
-		    &move_between_queues($env{'form.queue'},
-					 'gradingqueue');
-		} elsif ($env{'form.queue'} eq 'none' ) {
-		    &add_to_queue('gradingqueue',\%queue_data);	
-		} else {
-		    &check_queue_unlock($env{'form.queue'});
-		}
-	    } elsif ($mandatory_failed) {
-		&remove_from_queue($env{'form.queue'}); 
-	    } else {
-		&remove_from_queue($env{'form.queue'});
-	    }
-	}
+	        } elsif ($ungraded) {
+		    if ($env{'form.queue'} eq 'reviewqueue') {
+		        &Apache::lonxml::debug("moving back.");
+		        &move_between_queues($env{'form.queue'},
+					     'gradingqueue');
+		    } elsif ($env{'form.queue'} eq 'none' ) {
+		        &add_to_queue('gradingqueue',\%queue_data);	
+		    } else {
+		        &check_queue_unlock($env{'form.queue'});
+		    }
+	        } elsif ($mandatory_failed) {
+		    &remove_from_queue($env{'form.queue'}); 
+	        } else {
+		    &remove_from_queue($env{'form.queue'});
+	        }
+            } else {
+                &check_queue_unlock($env{'form.queue'});
+                $env{'form.terminated'} = $name.':'.$domain;
+            }
+        }
 	if (exists($Apache::lonhomework::results{'INTERNAL_store'})) {
-	    # instance generation occured and hasn't yet been stored
+	    # instance generation occurred and hasn't yet been stored
 	    &Apache::structuretags::finalize_storage();
 	}
     } elsif ($target eq 'webgrade') {
@@ -1381,6 +1434,13 @@ DONEBUTTON
     }
     &Apache::structuretags::reset_problem_globals('Task');
     undef($Apache::lonhomework::parsing_a_task);
+    if ( ($target eq 'grade' && $env{'form.webgrade'}) ||
+          $target eq 'webgrade') {
+        delete($env{'form.grade_symb'});
+        delete($env{'form.grade_domain'});
+        delete($env{'form.grade_username'});
+        delete($env{'form.grade_courseid'});
+    }
     return $result;
 }
 
@@ -2080,6 +2140,7 @@ sub select_user {
 		$seclist.='<input type="hidden" name="chosensections" 
                                value="'.$sec.'" />';
 	    }
+            my $buttontext=&mt('Regrade');
 	    $result.=&Apache::loncommon::start_data_table_row();
 	    $result.=<<RESULT;
   <td>
@@ -2088,7 +2149,7 @@ sub select_user {
       <input type="hidden" name="queue" value="$queue" />
       <input type="hidden" name="webgrade" value="no" />
       <input type="hidden" name="regrade" value="yes" />
-      <input type="submit" name="submit" value="Regrade" />
+      <input type="submit" name="submit" value="$buttontext" />
       $seclist
     </form>
   <td>$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()] <tt>($student)</tt> Sec: $classlist->{$student}[&Apache::loncoursedata::CL_SECTION()]</td>
@@ -2647,17 +2708,11 @@ sub question_status_message {
     }
     $status .= '.';
     if ($counts->{'opt'}) {
-        # FIXME &mt() missing!
-	$status .= ' You were required to pass '.$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');
-	}
-	$status .= '.';
+        if ($counts->{'opt_dim'} + $counts->{'man_dim'} < 1) {
+            $status .= ' '.&mt('You were required to pass [quant,_1,optional criterion,optional criteria].',$counts->{'opt_req'});
+        } else { 
+            $status .= ' '.&mt('You were required to pass [quant,_1,optional component].',$counts->{'opt_req'});
+        }
     }
     return $status;
 }
@@ -2987,25 +3042,25 @@ sub layout_webgrade_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 %lt = &Apache::lonlocal::texthash(
+        'ungraded' => 'Ungraded',
+        'fail'     => 'Fail',
+        'pass'     => 'Pass',
+        'review'   => 'Review',
+        'comment'  => 'Additional Comment for Student',
+    );
     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 ($status eq $which) { $checked{$which} = ' checked="checked"'; }
     }
-    if (!%checked) { $checked{'ungraded'} = '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} />
+			<input type="radio" name="HWVAL_$link" value="$which"$checked{$which} />
 			$lt{$which}
 		</label>
 END_BUTTON
@@ -3139,33 +3194,45 @@ sub proctor_validation_screen {
     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
     my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
     $uri = &HTML::Entities::encode($uri,'<>&"');
-    # FIXME &mt() missing!
+    my %lt = &Apache::lonlocal::texthash(
+                            'prva' => "Proctor Validation",
+                            'yoro' => "Your room's proctor needs to validate your access to this resource.",
+                            'prus'  => "Proctor's Username:",
+                            'pasw'  => "Password:",
+                            'prdo'  => "Proctor's Domain:",
+                            'vali'  => 'Validate',
+                            'stui'  => "Student who should be logged in is:",
+                            'name'  => "Name:",
+                            'sid'   => "Student/Employee ID",
+                            'unam'  => "Username:",
+                           );
     my $result= (<<ENDCHECKOUT);
-<h2>Proctor Validation</h2>
-    <p>Your room's proctor needs to validate your access to this resource.</p>
+<h2>$lt{'prva'}</h2>
+    <p>$lt{'yoro'}</p>
     $msg
 <form name="checkout" method="post" action="$uri">
 <input type="hidden" name="validate" value="yes" />
 <input type="hidden" name="submitted" value="yes" />
 <table>
-  <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
-  <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
-  <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
+  <tr><td>$lt{'prus'}</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
+  <tr><td>$lt{'pasw'}</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
+  <tr><td>$lt{'prdo'}</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
 </table>
-<input type="submit" name="checkoutbutton" value="Validate"  /><br />
+<input type="submit" name="checkoutbutton" value="$lt{'vali'}"  /><br />
 <table border="1">
   <tr><td>
     <table>
-      <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 colspan="2">$lt{'stui'}</td></tr>
+      <tr><td>$lt{'name'}</td><td>$name</td></tr>
+      <tr><td>$lt{'sid'}</td><td>$env{'environment.id'}</td></tr>
+      <tr><td>$lt{'unam'}</td><td>$user:$domain</td></tr>
       $url
     </table>
   </tr></td>
 </table>
 </form>
 ENDCHECKOUT
+
     return $result;
 }