--- loncom/interface/slotrequest.pm	2019/06/28 19:46:03	1.141
+++ loncom/interface/slotrequest.pm	2025/04/02 23:44:01	1.152
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler for requesting to have slots added to a students record
 #
-# $Id: slotrequest.pm,v 1.141 2019/06/28 19:46:03 raeburn Exp $
+# $Id: slotrequest.pm,v 1.152 2025/04/02 23:44:01 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -50,16 +50,23 @@ sub fail {
     } else {
 	$r->print('<p>'.&mt('Failed.').'</p>');
     }
-    
+
     &return_link($r);
     &end_page($r);
 }
 
 sub start_page {
-    my ($r,$title,$brcrum,$js)=@_;
+    my ($r,$title,$brcrum,$bread_crumbs_component,$js,$mgr)=@_;
     my $args;
     if (ref($brcrum) eq 'ARRAY') {
         $args = {bread_crumbs => $brcrum};
+        if ($bread_crumbs_component) {
+            $args->{bread_crumbs_component} = $bread_crumbs_component;
+        }
+        if ((($env{'form.requestattempt'}) || ($env{'form.context'} eq 'user')) && 
+             ($env{'form.symb'})) {
+            $args->{'bread_crumbs_nomenu'} = 1;
+        }
     }
     if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
         my %loaditems = (
@@ -71,12 +78,40 @@ sub start_page {
             $args = { 'add_entries' => \%loaditems };
         }
     }
+    unless (($env{'form.context'} eq 'usermanage') || (($mgr eq 'F') &&
+            (($env{'form.command'} eq 'release') ||
+             ($env{'form.command'} eq 'remove_registration')))) {
+        if ($env{'form.symb'}) {
+            my $symb=&unescape($env{'form.symb'});
+            if ($symb =~ m{^/enc/}) {
+                $symb = &Apache::lonenc::unencrypted($symb);
+            }
+            my ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($symb);
+            if ($resurl =~ /ext\.tool$/) {
+                my $target;
+                my ($marker,$exttool) = (split(m{/},$resurl))[3,4];
+                $marker=~s/\D//g;
+                if (($marker) && ($exttool) && ($env{'request.course.id'})) {
+                    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+                    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+                    my ($idx,$crstool,$is_tool,%toolhash,%toolsettings);
+                    if ($resurl eq "adm/$cdom/$cnum/$marker/$exttool") {
+                        my %toolsettings=&Apache::lonnet::dump('exttool_'.$marker,$cdom,$cnum);
+                        $target = $toolsettings{'target'};
+                    }
+                }
+                if ($target eq 'iframe') {
+                    $args->{'only_body'} = 1;
+                }
+            }
+        }
+    }
     $r->print(&Apache::loncommon::start_page($title,$js,$args));
 }
 
 sub end_page {
     my ($r)=@_;
-    $r->print(&Apache::loncommon::end_page());
+    $r->print('</div>'.&Apache::loncommon::end_page());
 }
 
 sub reservation_js {
@@ -256,7 +291,7 @@ function uncheckSlotRadio() {
     }
     if (slotpicks.length) {
         for (var i=0; i<slotpicks.length; i++) {
-            slotpicks[i].checked = false;  
+            slotpicks[i].checked = false;
         }
     }
 }
@@ -305,7 +340,7 @@ function toggleSlotMap(maprownum,rownum)
             for (var i=0; i<resrows.length; i++) {
                 resrows[i].style.display = rowdisplay;
                 if (rowdisplay == 'table-row') {
-                    mapbgidx ++;        
+                    mapbgidx ++;
                     var bgcolnew = mapbgidx % 2;
                     var bgcolold = (mapbgidx+1) % 2;
                     var k = i+parseInt(rownum)+1; 
@@ -340,7 +375,7 @@ function toggleSlotMap(maprownum,rownum)
                             if (table.rows[i].style.display != 'none') {
                                 idx ++;
                                 var bgcolnew = idx % 2;
-                                var bgcolold = (idx+1) % 2;  
+                                var bgcolold = (idx+1) % 2;
                                 j = i+1;
                                 if (document.getElementById('LC_slotmaprow_'+j)) {
                                     document.getElementById('LC_slotmaprow_'+j).className = rowclasses[bgcolnew];
@@ -384,7 +419,7 @@ sub get_course {
 
 sub get_reservation_ids {
     my ($slot_name)=@_;
-    
+
     my ($cnum,$cdom)=&get_course();
 
     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
@@ -429,7 +464,7 @@ sub check_for_reservation {
 	|| &Apache::lonnet::error($course)
 	|| &Apache::lonnet::error(%slots)) {
 	return 'error: Unable to determine current status';
-    }    
+    }
     my @got;
     my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');
     foreach my $slot_name (@sorted_slots) {
@@ -564,7 +599,7 @@ sub make_reservation {
     foreach my $other_slot (split(/:/, $value)) {
 	if ($other_slot eq $slot_name) {
 	    my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
-					       $cnum, "^$slot_name\0");   
+					       $cnum, "^$slot_name\0");
 	    if (&Apache::lonnet::error($value)) { 
 		return 'error: Unable to determine current status';
 	    }
@@ -590,14 +625,14 @@ sub make_reservation {
 	my $num=(split('\0',$id))[1];
 	if ($num > $last) { $last=$num; }
     }
-    
+
     my $wanted=$last+1;
     &Apache::lonxml::debug("wanted $wanted<br />");
     if (scalar(@ids) >= $max) {
 	# full up
 	return undef;
     }
-    
+
     my %reservation=('name'      => $env{'user.name'}.':'.$env{'user.domain'},
 		     'timestamp' => time,
 		     'symb'      => $symb_for_db);
@@ -676,17 +711,21 @@ sub remove_registration {
 
 sub remove_registration_user {
     my ($r) = @_;
-    
+
     my $slot_name = $env{'form.slotname'};
 
     my $name = &Apache::loncommon::plainname($env{'form.uname'},
 					     $env{'form.udom'});
 
-    my $title = &Apache::lonnet::gettitle($env{'form.symb'});
+    my $symb = &unescape($env{'form.symb'});
+    if ($symb =~ m{^/enc/}) {
+        $symb = &Apache::lonenc::unencrypted($symb);
+    }
+    my $title = &Apache::lonnet::gettitle($symb);
 
     my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
 		  $name,$slot_name,$title);
-    
+
     &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
 					       'entry','symb','context']);
 }
@@ -722,14 +761,14 @@ END_CONFIRM
 
 sub release_all_slot {
     my ($r,$mgr)=@_;
-    
+
     my $slot_name = $env{'form.slotname'};
 
     my ($cnum,$cdom)=&get_course();
 
     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
 				       "^$slot_name\0");
-    
+
     $r->print('<p>'.&mt('Releasing reservations').'</p>');
 
     foreach my $entry (sort { $consumed{$a}{'name'} cmp 
@@ -741,7 +780,7 @@ sub release_all_slot {
         if (!$result) {
             $r->print('<p class="LC_error">'.&mt($msg).'</p>');
         } else {
-	    $r->print("<p>$msg</p>");
+	    $r->print($msg);
         }
 	$r->rflush();
     }
@@ -764,16 +803,19 @@ sub release_slot {
     if ($mgr eq 'F' 
 	&& defined($env{'form.symb'})) {
 	$symb = &unescape($env{'form.symb'});
+	if ($symb =~ m{^/enc/}) {
+	    $symb = &Apache::lonenc::unencrypted($symb);
+	}
     }
 
     my ($result,$msg) =
 	&release_reservation($slot_name,$uname,$udom,$symb,$mgr);
     if (!$result) {
-        $r->print('<p><span class="LC_error">'.&mt($msg).'</span></p>');
+        $r->print('<p class="LC_error">'.&mt($msg).'</p>');
     } else {
         $r->print("<p>$msg</p>");
     }
-    
+
     if ($mgr eq 'F') {
 	$r->print('<p><a href="/adm/slotrequest?command=showslots">'.
 		  &mt('Return to slot list').'</a></p>');
@@ -941,7 +983,7 @@ sub release_reservation {
             } else {
                 if (keys(%to_delete)) {
                     $msg = &mt('Reservation release partially complete for [_1]',$description);
-                } else { 
+                } else {
                     $msg = &mt('No entries found for this user to release for [_1].',$description);
                 }
                 return (0,$msg);
@@ -995,7 +1037,7 @@ sub release_reservation {
 
     #
     # If release is *not* because of a reservation change, i.e., this is a "drop"
-    # by a student, or a removal for a single student by an instructor then 
+    # by a student, or a removal for a single student by an instructor then
     # only remove one entry from slot_reservations.db, where both the user
     # and the symb match the current context.  If useslots was set to map or
     # map_map, then the symb to match in slot_reservations.db is the symb of
@@ -1006,7 +1048,7 @@ sub release_reservation {
     if ($parm_level == 2) {
         $symb_to_check = $map_symb;
     } else {
-        $symb_to_check = $parm_symb; 
+        $symb_to_check = $parm_symb;
     }
     foreach my $entry (keys(%consumed)) {
         if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
@@ -1024,16 +1066,17 @@ sub release_reservation {
                                $cnum,$udom,$uname,$context) =~ /^error/) {
             if ($mgr eq 'F') {
                 $msg = &mt('Reservation release partially complete for: [_1]',"$uname:$udom").'<br />'.
-                       &mt('Update of availablestudent parameter for [_1] was not completed.',"$uname:$udom"); 
+                       &mt('Update of availablestudent parameter for [_1] was not completed.',"$uname:$udom");
             } else {
                 $msg = &mt('Release partially complete for: [_1]',$description);
             }
             return (0,$msg);
         } else {
             if ($mgr eq 'F') {
-	        $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
+                $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
             } else {
-	        $msg = '<span style="font-weight: bold;">'.&mt('Released reservation: [_1]',$description).'</span><br /><br />';
+                $msg = '<p style="font-weight: bold;">'.
+                       &mt('Released reservation: [_1]',$description).'</p>';
                 my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
                 my $subject = &mt('Reservation change: [_1]',$description);
                 my $msgbody = &mt('Reservation released by [_1] for [_2].',$person,$description);
@@ -1119,7 +1162,7 @@ sub delete_slot {
 	if ($ret eq 'ok') {
 	    $r->print('<p>'.&mt('Slot [_1] marked as deleted.','<tt>'.$slot_name.'</tt>').'</p>');
 	} else {
-	    $r->print('<p><span class="LC_error">'.&mt('An error occurred when attempting to delete slot: [_1]','<tt>'.$slot_name.'</tt>')." ($ret)</span></p>");
+	    $r->print('<p class="LC_error">'.&mt('An error occurred when attempting to delete slot: [_1]','<tt>'.$slot_name.'</tt>')." ($ret)</p>");
 	}
     } else {
 	if (%consumed) {
@@ -1135,15 +1178,32 @@ sub delete_slot {
 
 sub return_link {
     my ($r) = @_;
+    my $target = &return_target();
     if (($env{'form.command'} eq 'manageresv') || ($env{'form.context'} eq 'usermanage')) {
-	$r->print('<p><a href="/adm/slotrequest?command=manageresv">'.
-                  &mt('Return to reservations'));  
+	$r->print('<p><a href="/adm/slotrequest?command=manageresv" target="'.$target.'">'.
+                  &mt('Return to reservations').'</a></p>'); 
     } else {
-        $r->print('<p><a href="/adm/flip?postdata=return:">'.
+        $r->print('<p><a href="/adm/flip?postdata=return:" target="'.$target.'">'.
 	          &mt('Return to last resource').'</a></p>');
     }
 }
 
+sub return_target {
+    my ($target,$ltitarget,$deeplinktarget);
+    if ($env{'request.lti.login'}) {
+         $ltitarget = $env{'request.lti.target'};
+    }
+    if ($env{'request.deeplink.login'}) {
+        $deeplinktarget = $env{'request.deeplink.target'};
+    }
+    if (($ltitarget eq 'iframe') || ($deeplinktarget eq '_self')) {
+        $target = '_self';
+    } else {
+        $target = '_top';
+    }
+    return $target;
+}
+
 sub get_slot {
     my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
 
@@ -1151,9 +1211,9 @@ sub get_slot {
     my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
 
     if ($slot_name =~ /^error: (.*)/) {
-	$r->print('<p><span class="LC_error">'
+	$r->print('<p class="LC_error">'
                  .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
-                 .'</span></p>');
+                 .'</p>');
 	&return_link($r);
 	return 0;
     }
@@ -1206,9 +1266,9 @@ STUFF
     if (defined($reserved)) {
 	my $retvalue = 0;
 	if ($slot_name =~ /^error: (.*)/) {
-	    $r->print('<p><span class="LC_error">'
+	    $r->print('<p class="LC_error">'
                      .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
-                     .'</span></p>');
+                     .'</p>');
 	} elsif ($reserved > -1) {
 	    $r->print('<p style="font-weight: bold;">'.&mt('Successfully signed up:  [_1]',$description).'</p>');
 	    $retvalue = 1;
@@ -1295,7 +1355,7 @@ sub allowed_slot {
     if (($slot->{'endreserve'}) &&
         ($slot->{'endreserve'} < time)) {
         return 0;
-    }    
+    }
     &Apache::lonxml::debug("$slot_name reserve good");
 
     my $userallowed=0;
@@ -1401,9 +1461,10 @@ sub show_choices {
         return;
     }
     if (!@{$available}) {
-        $output = '<span class="LC_info">'.&mt('No available times.').'</span>';
+        $output = '<p class="LC_info">'.&mt('No available times.').'</p>';
         if ($env{'form.command'} ne 'manageresv') {
-            $output .= ' <a href="/adm/flip?postdata=return:">'.
+            my $target = &return_target();
+            $output .= ' <a href="/adm/flip?postdata=return:" target="'.$target.'">'.
                        &mt('Return to last resource').'</a>';
         }
         if ($class) {
@@ -1411,6 +1472,10 @@ sub show_choices {
         } else {
             return $output;
         }
+    } elsif ($env{'form.command'} ne 'manageresv') {
+        my $title = &Apache::lonnet::gettitle($symb);
+        my $headertext = &mt('Manage Reservation(s) for [_1]',$title);
+        $output .= '<h2 class="LC_heading_3">'.$headertext.'</h2>';
     }
     if (@{$available} > 1) {
         my $numavailable = scalar(@{$available});
@@ -1427,7 +1492,7 @@ sub show_choices {
             }
         }
         my $showfilter = 'none';
-        $output .= '<fieldset><legend>'.&mt('Actions').'</legend>'."\n".
+        $output .= '<fieldset><legend>'.&mt('Actions').':</legend>'."\n".
                    '<form method="post" name="reservationdisplay_'.$num.
                    '" action="" onsubmit="toggleSlotDisplay(this.form,'."'$num'".');">';
         my @options = ('all','filter');
@@ -1441,7 +1506,7 @@ sub show_choices {
                      );
         foreach my $option (@options) {
             my $onclick = "toggleSlotDisplay(this.form,'$num');";
-            if (($option eq 'show') && ($env{'form.command'} eq 'manageresv')) {  
+            if (($option eq 'show') && ($env{'form.command'} eq 'manageresv')) {
                 $onclick .= "currSlotDisplay$num(this.form,'$num');"; 
             }
             $output .= '<span class="LC_nobreak"><label>'.
@@ -1461,7 +1526,7 @@ sub show_choices {
 // <![CDATA[
 function currSlotDisplay$num() {
     var currslot = new Array($numreserved);
-$js    
+$js
     for (var j=0; j<$numreserved; j++) {
         if (document.getElementById('LC_slotrow_$num\_'+currslot[j])) {
             document.getElementById('LC_slotrow_$num\_'+currslot[j]).style.display = '';
@@ -1476,19 +1541,32 @@ ENDSCRIPT
         $output .=
             '<div id="LC_slotfilter_'.$num.'" style="display:'.$showfilter.'">'.
             '<form method="post" name="'.$chooserform.'" action="">'.
-            '<table><tr><td>'.&mt('Open after').'</td><td>'.
+            '<table class="LC_manage_reservations"><tr><th>'.&mt('Open after').'</th><td>'.
             &Apache::lonhtmlcommon::date_setter($chooserform,'start',$starttime,'','','','','','','',1,1).
-            '</td></tr><tr><td>'.&mt('Closed before').'</td><td>'.
+            '</td></tr><tr><th>'.&mt('Closed before').'</th><td>'.
             &Apache::lonhtmlcommon::date_setter($chooserform,'end',$endtime,'','','','','','','',1,1).
             '</td></tr></table><br />'.
             '<input type="button" name="slotfilter" value="Search for reservable slots" onclick="updateSlotDisplay(this.form,'."'$num'".');" />'.
             '</form></div><div id="LC_slotsearch_'.$num.'" style="display:none"><hr />';
     }
     if ($env{'form.command'} eq 'manageresv') {
-        $output .= '<table border="0">';
+        $output .= '<table border="0" class="LC_manage_reservations">'.
+                   '<tr><th>'.&mt('Action').'</th><th>'.&mt('Name').'</th></tr>';
+    } else {
+        $output .= &Apache::loncommon::start_data_table().
+                   &Apache::loncommon::start_data_table_header_row().
+                   '<th>'.&mt('Action').'</th><th>'.&mt('Name').'</th>'.
+                   &Apache::loncommon::end_data_table_header_row();
+    }
+    my $shownsymb;
+    if ($env{'request.role.adv'}) {
+        $shownsymb = $symb;
+    } elsif (&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) {
+        $shownsymb = &Apache::lonenc::encrypted($symb);
     } else {
-        $output .= &Apache::loncommon::start_data_table();
+        $shownsymb = $symb;
     }
+    $shownsymb = &escape($shownsymb);
     foreach my $slot (@{$available}) {
 	my $description=&get_description($slot,$slots->{$slot});
 	my $form;
@@ -1513,7 +1591,6 @@ ENDSCRIPT
 		    }
                 }
 	    }
-	    my $escsymb=&escape($symb);
             if (!$form) {
                 my $name;
                 if ($formname) {
@@ -1526,7 +1603,7 @@ ENDSCRIPT
 	        $form=<<STUFF;
    <form method="post" action="/adm/slotrequest" $name>
      <input type="submit" name="Select" value="$text" />
-     <input type="hidden" name="symb" value="$escsymb" />
+     <input type="hidden" name="symb" value="$shownsymb" />
      <input type="hidden" name="slotname" value="$slot" />
      <input type="hidden" name="command" value="$command" />
      <input type="hidden" name="context" value="$context" />
@@ -1624,7 +1701,7 @@ sub to_show {
 	}
 	return 0;
     }
-    
+
     return 1;
 }
 
@@ -1639,11 +1716,20 @@ sub remove_link {
 	undef($udom);
     }
 
+    my $shownsymb;
+    if ($env{'request.role.adv'}) {
+        $shownsymb = $symb;
+    } elsif (&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) {
+        $shownsymb = &Apache::lonenc::encrypted($symb);
+    } else {
+        $shownsymb = $symb;
+    }
+
     $slotname  = &escape($slotname);
     $entry     = &escape($entry);
     $uname     = &escape($uname);
     $udom      = &escape($udom);
-    $symb      = &escape($symb);
+    $symb      = &escape($shownsymb);
 
     return <<"END_LINK";
  <a href="/adm/slotrequest?command=remove_registration&amp;slotname=$slotname&amp;entry=$entry&amp;uname=$uname&amp;udom=$udom&amp;symb=$symb&amp;context=manage"
@@ -1663,10 +1749,6 @@ sub show_table {
     } 
     my $available;
     if ($mgr eq 'F') {
-    # FIXME: This line should be deleted once Slots uses breadcrumbs
-    $r->print('<br />'.&Apache::loncommon::help_open_topic(
-        'Slot About', &mt('Help on slots')));
-
 	$r->print('<div>');
 	$r->print('<form method="post" action="/adm/slotrequest">
 <input type="hidden" name="command" value="uploadstart" />
@@ -1676,7 +1758,7 @@ sub show_table {
 	$r->print('<form method="post" action="/adm/helper/newslot.helper">
 <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
 </form>');
-	$r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
+	$r->print(&Apache::loncommon::help_open_topic('Slot About'));
 	$r->print('</div>');
     }
 
@@ -1688,7 +1770,7 @@ sub show_table {
         );
         return;
     }
-    
+
     my %Saveable_Parameters = ('show'              => 'array',
 			       'when'              => 'scalar',
 			       'order'             => 'scalar',
@@ -1778,7 +1860,7 @@ sub show_table {
     my $name_filter = {'type'  => $name_filter_type,
 		       'value' => $env{'form.name_filter_value'},};
 
-    
+
     #deleted slot filtering
     #default to hide if no value
     $env{'form.deleted'} ||= 'hide';
@@ -1791,40 +1873,36 @@ sub show_table {
 <input type="hidden" name="command" value="showslots" />');
     $r->print('<div>');
     $r->print('<table class="inline">
-      <tr><th>'.&mt('Show').'</th>
-          <th>'.&mt('Student Display').'</th>
-          <th>'.&mt('Open').'</th>
-          <th>'.&mt('Slot Name Filter').'</th>
+      <tr><th><label for="show">'.&mt('Show').'</label></th>
+          <th><label for="studisplay">'.&mt('Student Display').'</label></th>
+          <th><label for="when">'.&mt('Open').'</label></th>
+          <th><label for="name_filter_type">'.&mt('Slot Name Filter').'</label></th>
           <th>'.&mt('Options').'</th>
       </tr>
-      <tr><td valign="top">'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
+      <tr><td valign="top">'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order,'show').
 	      '</td>
            <td valign="top">
          '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
 						    6,\%stu_display_fields,
-						    \@stu_display_order).'
+						    \@stu_display_order,'studisplay').'
            </td>
-           <td valign="top">'.&Apache::loncommon::select_form($when,'when',\%when_fields).
+           <td valign="top">'.&Apache::loncommon::select_form($when,'when',\%when_fields,'','','when').
           '</td>
-           <td valign="top">'.&Apache::loncommon::select_form($name_filter_type,
+           <td valign="top"><span class="LC_nobreak">'.&Apache::loncommon::select_form($name_filter_type,
 						 'name_filter_type',
-						 \%name_filter_type_fields).
-	      '<br />'.
+						 \%name_filter_type_fields,'','','name_filter_type').
+	      '&nbsp;'.
 	      &Apache::lonhtmlcommon::textbox('name_filter_value',
 					      $env{'form.name_filter_value'},
-					      15).
-          '</td>
+					      15,'aria-label="'.&mt('Name filter').'"').
+          '</span></td>
            <td valign="top">
-            <table>
-              <tr>
-                <td rowspan="2">'.&mt('Deleted slots:').'</td>
-                <td><label>'.$show_radio.&mt('Show').'</label></td>
-              </tr>
-              <tr>
-                <td><label>'.$hide_radio.&mt('Hide').'</label></td>
-              </tr>
-            </table>
-	  </td>
+             <fieldset class="LC_delete_slot">
+              <legend>'.&mt('Deleted slots').'</legend>
+               <span class="LC_nobreak"><label>'.$show_radio.&mt('Show').'</label>&nbsp;&nbsp;&nbsp;
+               <label>'.$hide_radio.&mt('Hide').'</label></span>
+             </fieldset>
+	   </td>
        </tr>
     </table>');
     $r->print('</div>');
@@ -1832,7 +1910,7 @@ sub show_table {
     my $linkstart='<a href="/adm/slotrequest?command=showslots&amp;order=';
     my $tableheader = &Apache::loncommon::start_data_table().
 	              &Apache::loncommon::start_data_table_header_row().'
-	              <th></th>';
+	              <th><span class="LC_visually_hidden">'.&mt('Action').'</span></th>';
     foreach my $which (@show_order) {
 	if ($which ne 'proctor' && exists($show{$which})) {
 	    $tableheader .= '<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>';
@@ -1858,7 +1936,7 @@ sub show_table {
 		return lc($a) cmp lc($b);
 	    }
 	} elsif ($env{'form.order'} eq 'uniqueperiod') {
-	    
+
 	    if ($slots{$a}->{'uniqueperiod'}[0] 
 		ne $slots{$b}->{'uniqueperiod'}[0]) {
 		return ($slots{$a}->{'uniqueperiod'}[0]
@@ -1892,7 +1970,7 @@ sub show_table {
 	}
 	my $description=&get_description($slot,$slots{$slot});
 	my ($id_count,$ids);
-	    
+
 	if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
 	    my $re_str = "$slot\0";
 	    my @this_slot = grep(/^\Q$re_str\E/,keys(%consumed));
@@ -1999,11 +2077,11 @@ sub show_table {
         my ($edit,$delete,$showlog,$remove_all);
         if ($mgr) {
 	    $edit=(<<"EDITLINK");
-<a href="/adm/helper/newslot.helper?name=$slot">$lt{'edit'}</a>
+<p class="LC_medium_line"><a href="/adm/helper/newslot.helper?name=$slot">$lt{'edit'}</a></p>
 EDITLINK
 
 	    $delete=(<<"DELETELINK");
-<a href="/adm/slotrequest?command=delete&amp;slotname=$slot">$lt{'delete'}</a>
+<p class="LC_medium_line"><a href="/adm/slotrequest?command=delete&amp;slotname=$slot">$lt{'delete'}</a></p>
 DELETELINK
 
             $remove_all=&remove_link($slot,'remove all').'<br />';
@@ -2016,7 +2094,7 @@ DELETELINK
         }
 
         $showlog=(<<"LOGLINK");
-<a href="/adm/slotrequest?command=slotlog&amp;slotname=$slot">$lt{'slotlog'}</a>
+<p class="LC_medium_line"><a href="/adm/slotrequest?command=slotlog&amp;slotname=$slot">$lt{'slotlog'}</a></p>
 LOGLINK
 
 	if ($slots{$slot}{'type'} ne 'schedulable_student') {
@@ -2256,7 +2334,10 @@ sub manage_reservations {
     my $slotheader = '<p>'.
                  &mt('Your reservation status for any such assignments is listed below:').
                  '</p>'.
-                 '<table class="LC_data_table LC_tableOfContent" id="LC_slot_reservations">'."\n";
+                 '<table class="LC_data_table LC_tableOfContent" id="LC_slot_reservations">'."\n".
+                 '<tr class="LC_visually_hidden">'.
+                 '<th>'.&mt('Resource or Folder').'</th>'.
+                 '<th colspan="2">'.&mt('Reservation Status').'</th></tr>'."\n";
     my $shownheader = 0;
     my $currmap;
     my $it=$navmap->getIterator(undef,undef,undef,1,undef,undef);
@@ -2290,8 +2371,8 @@ sub manage_reservations {
                             $arrowstate = 'closed';
                         }
                         $row .= '<td>'.$spacers.'<img src="/adm/lonIcons/arrow.'.$arrowstate.'.gif" '.
-                                'id="arrow'.$mapnum.'" '.'alt="arrow" onmouseover="this.style.cursor=\'pointer\'" '.
-                                'onclick="'."toggleSlotMap('$mapnum','$rownum');".'" />'.
+                                'id="arrow'.$mapnum.'" '.'alt="arrow" onmouseover="this.style.cursor=\'pointer\'" tabindex="0" '.
+                                'onclick="'."toggleSlotMap('$mapnum','$rownum');".'" onkeydown="'."toggleSlotMap('$mapnum','$rownum');".'" />'.
                                 $icon.('&nbsp;' x6).'</td>'."\n";
                         if (ref($output{$currmap}) eq 'HASH') {
                             my $formnum = $mapnum.'_'.$reservable+1;
@@ -2324,6 +2405,14 @@ sub manage_reservations {
             $currcontainer = $parent{$depth};
         } elsif (ref($resource)) {
             my $symb = $resource->symb();
+            my $src = $resource->src();
+            my ($shownsymb,$shownsrc);
+            $shownsymb = $resource->shown_symb();
+            if ($resource->encrypted()) {
+                $shownsrc = &Apache::lonenc::encrypted($src);
+            } else {
+                $shownsrc = $src;
+            }
             next if (!$resource->is_problem() && !$resource->is_tool() &&
                      !$resource->is_sequence() && !$resource->is_page());
             $count ++;
@@ -2332,7 +2421,7 @@ sub manage_reservations {
                 $container{$currcontainer} = $resource;
                 $container_title{$currcontainer} = $resource->compTitle();
             }
-            if (($resource->is_problem() || $resource->is_tool)) {
+            if ($resource->is_problem() || $resource->is_tool()) {
                 next unless (exists($output{$symb}));
                 $reservable ++;
                 $rownum ++;
@@ -2355,7 +2444,7 @@ sub manage_reservations {
                 for (my $i=0; $i<$depth; $i++) {
                     $r->print('<img src="'.$location.'" alt="" />');
                 }
-                $r->print('<a href="'.$resource->src().'?symb='.$symb.'">'.
+                $r->print('<a href="'.$shownsrc.'?symb='.$shownsymb.'">'.
                           '<img class="LC_contentImage" src="/adm/lonIcons/');
                 if ($resource->is_task()) {
                     $r->print('task.gif" alt="'.&mt('Task'));
@@ -2446,7 +2535,7 @@ sub slot_chooser {
                                         }
                                     }
                                 }
-                                next if ($exclude);   
+                                next if ($exclude);
                             }
                         }
                     }
@@ -2872,11 +2961,19 @@ sub display_filter {
     my ($formname,$cdom,$cnum,$curr,$version,$allsymbs) = @_;
     my $nolink = 1;
     my (%titles,%maptitles);
-    my $output = '<br /><table><tr><td valign="top">'.
-                 '<span class="LC_nobreak"><b>'.&mt('Changes/page:').'</b><br />'.
-                 &Apache::lonmeta::selectbox('show',$curr->{'show'},undef,
-                                              (&mt('all'),5,10,20,50,100,1000,10000)).
-                 '</td><td>&nbsp;&nbsp;</td>';
+    my $output = '<br /><table><tr><th class="LC_log_filter">'.
+                 '<span class="LC_nobreak"><label for="show">'.&mt('Changes/page:').'</label></span></th>'.
+                 '<th class="LC_log_filter">'.&mt('Window during which changes occurred:').'</th>';
+    if (ref($allsymbs) eq 'ARRAY') {
+        $output.= '<th class="LC_log_filter"><label for="resource">'.&mt('Resource').'</label></th>'.
+                  '<th class="LC_log_filter"><label for="chgcontext">'.&mt('Context').'</label></th>';
+    } else {
+        $output.= '<th class="LC_log_filter"><label for="action">'.&mt('Action').'</label></th>';
+    }
+    $output .= '</tr><tr><td class="LC_log_filter">'.
+               &Apache::lonmeta::selectbox('show',$curr->{'show'},'','show',undef,
+                                           (&mt('all'),5,10,20,50,100,1000,10000)).
+               '</td>';
     my $startform =
         &Apache::lonhtmlcommon::date_setter($formname,'log_start_date',
                                             $curr->{'log_start_date'},undef,
@@ -2887,13 +2984,13 @@ sub display_filter {
                                             undef,undef,undef,undef,undef,undef,$nolink);
     my $crstype = &Apache::loncommon::course_type();
     my %lt = &reservationlog_contexts($crstype);
-    $output .= '<td valign="top"><b>'.&mt('Window during which changes occurred:').
-               '</b><br /><table><tr><td>'.&mt('After:').
-               '</td><td>'.$startform.'</td></tr><tr><td>'.&mt('Before:').'</td><td>'.
-               $endform.'</td></tr></table></td><td>&nbsp;&nbsp;</td>';
+    $output .= '<td class="LC_log_filter"><table><tr><th>'.&mt('After:').'</th>'.
+               '<td>'.$startform.'</td></tr>'.
+               '<tr><th>'.&mt('Before:').'</th>'.
+               '<td>'.$endform.'</td></tr></table>'.
+               '</td>';
     if (ref($allsymbs) eq 'ARRAY') {
-        $output .= '<td valign="top"><b>'.&mt('Resource').'</b><br />'.
-                   '<select name="resource"><option value="any"';
+        $output .= '<td class="LC_log_filter"><select name="resource" id="resource"><option value="any"';
         if ($curr->{'resource'} eq 'any') {
             $output .= ' selected="selected"';
         }
@@ -2906,8 +3003,8 @@ sub display_filter {
             }
             $output .= '  <option value="'.$symb.'"'.$selstr.'>'.$title.'</option>';
         }
-        $output .= '</select></td><td>&nbsp;&nbsp;</td><td valign="top"><b>'.
-                   &mt('Context:').'</b><br /><select name="chgcontext">';
+        $output .= '</select></td>'.
+                   '<td class="LC_log_filter"><select name="chgcontext" id="chgcontext">';
         foreach my $chgtype ('any','user','manage','parameter') {
             my $selstr = '';
             if ($curr->{'chgcontext'} eq $chgtype) {
@@ -2917,8 +3014,7 @@ sub display_filter {
         }
         $output .= '</select></td>';
     } else {
-        $output .= '<td valign="top"><b>'.&mt('Action').'</b><br />'.
-                   '<select name="action"><option value="any"';
+        $output .= '<td class="LC_log_filter"><select name="action" id="action"><option value="any"';
         if ($curr->{'action'} eq 'any') {
             $output .= ' selected="selected"';
         }
@@ -2932,7 +3028,7 @@ sub display_filter {
         }
         $output .= '</select></td>';
     }
-    $output .= '<td>&nbsp;&nbsp;</td></tr></table>'.
+    $output .= '</tr></table>'.
                '<p><input type="submit" value="'.
                &mt('Update Display').'" /></p>'.
                '<p class="LC_info">'.
@@ -2982,15 +3078,15 @@ sub slot_change_messaging {
 }
 
 sub upload_start {
-    my ($r)=@_;    
+    my ($r)=@_;
     $r->print(
         &Apache::grades::checkforfile_js()
-       .'<h2>'.&mt('Upload a file containing the slot definitions').'</h2>'
+       .'<h2 class="LC_heading_2">'.&mt('Upload a file containing the slot definitions').'</h2>'
        .'<form method="post" enctype="multipart/form-data"'
        .' action="/adm/slotrequest" name="slotupload">'
        .'<input type="hidden" name="command" value="csvuploadmap" />'
        .&Apache::lonhtmlcommon::start_pick_box()
-       .&Apache::lonhtmlcommon::row_title(&mt('File'))
+       .&Apache::lonhtmlcommon::row_title('<label for="upfile">'.&mt('File').'</label>')
        .&Apache::loncommon::upfile_select_html()
        .&Apache::lonhtmlcommon::row_closure()
        .&Apache::lonhtmlcommon::row_title(
@@ -3023,7 +3119,7 @@ sub csvuploadmap_header {
 
     $r->print(
         '<form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">'
-       .'<h2>'.&mt('Identify fields in uploaded list').'</h2>'
+       .'<h2 class="LC_heading_2">'.&mt('Identify fields in uploaded list').'</h2>'
        .'<div class="LC_columnSection">'
        .&Apache::loncommon::help_open_topic(
             'Slot About',&mt('Help on slots'))
@@ -3300,6 +3396,9 @@ sub csv_upload_assign {
 			 'secret','symb') {
 	    if ($entries{$fields{$key}}) {
 		$slot{$key}=$entries{$fields{$key}};
+                if ($key eq 'maxspace') {
+                    $slot{$key} =~ s/\D+//g;
+                }
 	    }
 	}
         if ($entries{$fields{'iptied'}} =~ /^\s*(yes|1)\s*$/i) {
@@ -3394,6 +3493,61 @@ sub slot_reservationmsg_options {
     return %options;
 }
 
+sub get_user_breadcrumbs {
+    my ($symb) = @_;
+    my ($mapurl, $rid, $resurl) = &Apache::lonnet::decode_symb($symb);
+    return [] unless (&Apache::lonnet::symbverify($symb,$resurl));
+    my $coursetitle = $env{'course.'.$env{'request.course.id'}.'.description'};
+    my $maptitle = &Apache::lonnet::gettitle($mapurl);
+    my $restitle = &Apache::lonnet::gettitle($symb);
+    my $crstype = &Apache::loncommon::course_type();
+    my ($ltiscope,$ltiuri);
+    my (@crumbs,@mapcrumbs);
+    if (($env{'request.course.id'}) && ($env{'request.lti.login'})) {
+        ($ltiscope,$ltiuri) =
+            &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
+                       $env{'course.'.$env{'request.course.id'}.'.domain'},
+                       $env{'course.'.$env{'request.course.id'}.'.num'});
+    }
+    if (($resurl ne '/adm/navmaps') && ($mapurl ne '') &&
+        (!(($crstype eq 'Placement') && !$env{'request.role.adv'}))) {
+        unless ($ltiscope eq 'resource') {
+            if (($mapurl ne $env{'course.'.$env{'request.course.id'}.'.url'}) &&
+                !(($ltiscope eq 'map') && (&Apache::lonnet::clutter($resurl) eq $ltiuri))) {
+                my $navmap = Apache::lonnavmaps::navmap->new();
+                if (ref($navmap)) {
+                    @mapcrumbs = $navmap->recursed_crumbs($mapurl,$restitle);
+                }
+            }
+        }
+    }
+    unless ((($crstype eq 'Placement') && (!$env{'request.role.adv'})) ||
+             ($ltiscope eq 'map') || ($ltiscope eq 'resource')) {
+             @crumbs = ({text  => $crstype.' Contents',
+                         href  => "javascript:gopost('/adm/navmaps','')"});
+    }
+    if ($mapurl ne $env{'course.'.$env{'request.course.id'}.'.url'}) {
+        if (@mapcrumbs) {
+            push(@crumbs,@mapcrumbs);
+        } elsif (!(($crstype eq 'Placement') && (!$env{'request.role.adv'})) &&
+                 ($ltiscope ne 'map') && ($ltiscope ne 'resource')) {
+            push(@crumbs, {text  => '...',
+                           no_mt => 1});
+        }
+    }
+    unless ((($crstype eq 'Placement') && (!$env{'request.role.adv'})) || (@mapcrumbs) ||
+            (!$maptitle) || ($maptitle eq 'default.sequence') ||
+            ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'}) ||
+            ($ltiscope eq 'resource')) {
+        push(@crumbs, {text => $maptitle, no_mt => 1,
+                       href => &Apache::lonnet::clutter($mapurl).'?navmap=1'});
+    }
+    if ($restitle && !@mapcrumbs) {
+        push(@crumbs,{text => $restitle, no_mt => 1});
+    }
+    return \@crumbs;
+}
+
 sub handler {
     my $r=shift;
 
@@ -3407,7 +3561,7 @@ sub handler {
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 
     my %crumb_titles = &slot_command_titles();
-    my $brcrum;
+    my ($symb,$brcrum,$bread_crumbs_component);
 
     my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
     my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
@@ -3432,19 +3586,30 @@ sub handler {
         if (ref($brcrum) eq 'ARRAY') {
             push(@{$brcrum},{href=>"/adm/slotrequest?command=showresv",text=>$title});
         }
-    } elsif (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {  
+    } elsif (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
         if ($env{'form.command'} eq 'manageresv') {
             $title = 'Manage Reservations';
             $brcrum =[{href=>"/adm/slotrequest?command=manageresv",text=>$title}];
         }
+        if ($env{'form.requestattempt'}) {
+            $symb=&unescape($env{'form.symb'});
+            if ($symb =~ m{^/enc/}) {
+                $symb = &Apache::lonenc::unencrypted($symb);
+            }
+            if ($symb) {
+                $brcrum = &get_user_breadcrumbs($symb);
+            }
+        }
         my ($cnum,$cdom)=&get_course();
         %slots = &Apache::lonnet::get_course_slots($cnum,$cdom);
         $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
     } elsif ($vgr eq 'F') {
         if ($env{'form.command'} =~ /^(slotlog|showslots|uploadstart|csvuploadmap|csvuploadassign|delete|release|remove_registration)$/) {
             $brcrum =[{href=>"/adm/slotrequest?command=showslots",
-                       text=>$crumb_titles{'showslots'}}];
+                       text=>$crumb_titles{'showslots'},
+                       help=>'Slot_Use'}];
 	    $title = 'Managing Slots';
+            $bread_crumbs_component = 'Slots';
             unless ($env{'form.command'} eq 'showslots') {
                 if (ref($brcrum) eq 'ARRAY') {
                     push(@{$brcrum},{href=>"/adm/slotrequest?command=$env{'form.command'}",text=>$crumb_titles{$env{'form.command'}}});
@@ -3454,25 +3619,45 @@ sub handler {
     } elsif ($env{'form.command'} eq 'release') {
         if ($env{'form.context'} eq 'usermanage') {
             $brcrum =[{href=>"/adm/slotrequest?command=manageresv",
-                       text=>$crumb_titles{'showslots'}}];
+                       text=>$crumb_titles{'manageresv'}}];
             $title = 'Manage Reservations';
             if (ref($brcrum) eq 'ARRAY') {
                 push(@{$brcrum},{href=>"/adm/slotrequest?command=$env{'form.command'}",text=>$crumb_titles{$env{'form.command'}}});
             }
+        } elsif ($env{'form.context'} eq 'user') {
+            if ($env{'form.symb'}) {
+                $symb = &unescape($env{'form.symb'});
+                if ($symb =~ m{^/enc/}) {
+                    $symb = &Apache::lonenc::unencrypted($symb);
+                }
+                $brcrum = &get_user_breadcrumbs($symb);
+            } else {
+                $brcrum =[];
+            }
+        }
+    } elsif (($env{'form.command'} eq 'get') && ($env{'form.context'} eq 'user')) {
+        if ($env{'form.symb'}) {
+            $symb=&unescape($env{'form.symb'});
+            if ($symb =~ m{^/enc/}) {
+                $symb = &Apache::lonenc::unencrypted($symb);
+            }
+            $brcrum = &get_user_breadcrumbs($symb);
+        } else {
+            $brcrum =[];
         }
     } else {
         $brcrum =[];
     }
-    my ($symb,$js,$available,$allavailable,$got_slots);
+    my ($js,$available,$allavailable,$got_slots);
     $available = [];
     if ($env{'form.requestattempt'}) {
-        $symb=&unescape($env{'form.symb'});
         @{$got_slots}=&check_for_reservation($symb,'allslots');
     }
     if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
         $js = &reservation_js(\%slots,$consumed_uniqueperiods,$available,$got_slots,$symb);
     }
-    &start_page($r,$title,$brcrum,$js);
+    &start_page($r,$title,$brcrum,$bread_crumbs_component,$js,$mgr);
+    $r->print('<div class="LC_landmark" role="main">'."\n");
 
     if ($env{'form.command'} eq 'manageresv') {
         $allavailable = $available;
@@ -3512,7 +3697,10 @@ sub handler {
     } elsif (($env{'form.command'} eq 'slotlog') && ($vgr eq 'F')) {
         &show_reservations_log($r);
     } else {
-	my $symb=&unescape($env{'form.symb'});
+	$symb = &unescape($env{'form.symb'});
+	if ($symb =~ m{^/enc/}) {
+	    $symb = &Apache::lonenc::unencrypted($symb);
+	}
 	if (!defined($symb)) {
 	    &fail($r,'not_valid');
 	    return OK;
@@ -3537,9 +3725,9 @@ sub handler {
 	    return OK;
 	}
 	if ($env{'form.requestattempt'}) {
-            $r->print('<div class="LC_left_float">'); 
-	    $r->print(&show_choices($symb,undef,undef,undef,\%slots,$consumed_uniqueperiods,$available,$got_slots));
-            $r->print('</div><div style="padding:0;clear:both;margin:0;border:0"></div>');
+            $r->print('<div class="LC_left_float">'.
+	              &show_choices($symb,undef,0,undef,\%slots,$consumed_uniqueperiods,$available,$got_slots).
+                      '</div><div style="padding:0;clear:both;margin:0;border:0"></div>');
 	} elsif ($env{'form.command'} eq 'release') {
 	    &release_slot($r,$symb);
 	} elsif ($env{'form.command'} eq 'get') {