loncom/interface/lonnavmaps.pm - diff

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Diff for /loncom/interface/lonnavmaps.pm between versions 1.504 and 1.509.2.17

version 1.504, 2014/12/11 01:56:34	version 1.509.2.17, 2024/07/03 03:07:58
Line 342 user into thinking that if the sequence	Line 342 user into thinking that if the sequence
under it; for example, see the "Show Uncompleted Homework" view on the	under it; for example, see the "Show Uncompleted Homework" view on the
B<NAV> screen.	B<NAV> screen.

=item * B<suppressNavmaps>: default: false	=item * B<suppressNavmap>: default: false

If true, will not display Navigate Content resources.	If true, will not display Navigate Content resources.

Line 486 use Apache::lonlocal;	Line 486 use Apache::lonlocal;
use Apache::lonnet;	use Apache::lonnet;
use Apache::lonmap;	use Apache::lonmap;

use POSIX qw (floor strftime);	use POSIX qw (ceil floor strftime);
use Time::HiRes qw( gettimeofday tv_interval );	use Time::HiRes qw( gettimeofday tv_interval );
use LONCAPA;	use LONCAPA;
use DateTime();	use DateTime();
Line 534 my %colormap =	Line 534 my %colormap =
$resObj->EXCUSED => '#3333FF',	$resObj->EXCUSED => '#3333FF',
$resObj->PAST_DUE_ANSWER_LATER => '',	$resObj->PAST_DUE_ANSWER_LATER => '',
$resObj->PAST_DUE_NO_ANSWER => '',	$resObj->PAST_DUE_NO_ANSWER => '',
	$resObj->PAST_DUE_ATMPT_ANS => '',
	$resObj->PAST_DUE_ATMPT_NOANS => '',
	$resObj->PAST_DUE_NO_ATMT_ANS => '',
	$resObj->PAST_DUE_NO_ATMT_NOANS => '',
$resObj->ANSWER_OPEN => '#006600',	$resObj->ANSWER_OPEN => '#006600',
$resObj->OPEN_LATER => '',	$resObj->OPEN_LATER => '',
$resObj->TRIES_LEFT => '',	$resObj->TRIES_LEFT => '',
Line 577 sub getLinkForResource {	Line 581 sub getLinkForResource {
my $anchor;	my $anchor;
if ($res->is_page()) {	if ($res->is_page()) {
foreach my $item (@$stack) { if (defined($item)) { $anchor = $item; } }	foreach my $item (@$stack) { if (defined($item)) { $anchor = $item; } }
$anchor=&escape($anchor->shown_symb());	if ($anchor->encrypted() && !&advancedUser()) {
	$anchor='LC_'.$anchor->id();
	} else {
	$anchor=&escape($anchor->shown_symb());
	}
return ($res->link(),$res->shown_symb(),$anchor);	return ($res->link(),$res->shown_symb(),$anchor);
}	}
# in case folder was skipped over as "only sequence"	# in case folder was skipped over as "only sequence"
Line 624 sub getDescription {	Line 632 sub getDescription {
if ($status == $res->OPEN_LATER) {	if ($status == $res->OPEN_LATER) {
return &mt("Open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($open,'start'),$res->symb(),'opendate',$part));	return &mt("Open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($open,'start'),$res->symb(),'opendate',$part));
}	}
	my $slotinfo;
if ($res->simpleStatus($part) == $res->OPEN) {	if ($res->simpleStatus($part) == $res->OPEN) {
unless (&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) {	unless (&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) {
my ($slot_status,$slot_time,$slot_name)=$res->check_for_slot($part);	my ($slot_status,$slot_time,$slot_name)=$res->check_for_slot($part);
	my $slotmsg;
if ($slot_status == $res->UNKNOWN) {	if ($slot_status == $res->UNKNOWN) {
return &mt('Reservation status unknown');	$slotmsg = &mt('Reservation status unknown');
} elsif ($slot_status == $res->RESERVED) {	} elsif ($slot_status == $res->RESERVED) {
return &mt('Reserved - ends [_1]',	$slotmsg = &mt('Reserved - ends [_1]',
timeToHumanString($slot_time,'end'));	timeToHumanString($slot_time,'end'));
} elsif ($slot_status == $res->RESERVED_LOCATION) {	} elsif ($slot_status == $res->RESERVED_LOCATION) {
return &mt('Reserved - specific location(s) - ends [_1]',	$slotmsg = &mt('Reserved - specific location(s) - ends [_1]',
timeToHumanString($slot_time,'end'));	timeToHumanString($slot_time,'end'));
} elsif ($slot_status == $res->RESERVED_LATER) {	} elsif ($slot_status == $res->RESERVED_LATER) {
return &mt('Reserved - next open [_1]',	$slotmsg = &mt('Reserved - next open [_1]',
timeToHumanString($slot_time,'start'));	timeToHumanString($slot_time,'start'));
} elsif ($slot_status == $res->RESERVABLE) {	} elsif ($slot_status == $res->RESERVABLE) {
return &mt('Reservable, reservations close [_1]',	$slotmsg = &mt('Reservable, reservations close [_1]',
	timeToHumanString($slot_time,'end'));
	} elsif ($slot_status == $res->NEEDS_CHECKIN) {
	$slotmsg = &mt('Reserved, check-in needed - ends [_1]',
timeToHumanString($slot_time,'end'));	timeToHumanString($slot_time,'end'));
} elsif ($slot_status == $res->RESERVABLE_LATER) {	} elsif ($slot_status == $res->RESERVABLE_LATER) {
return &mt('Reservable, reservations open [_1]',	$slotmsg = &mt('Reservable, reservations open [_1]',
timeToHumanString($slot_time,'start'));	timeToHumanString($slot_time,'start'));
} elsif ($slot_status == $res->NOT_IN_A_SLOT) {	} elsif ($slot_status == $res->NOT_IN_A_SLOT) {
return &mt('Reserve a time/place to work');	$slotmsg = &mt('Reserve a time/place to work');
} elsif ($slot_status == $res->NOTRESERVABLE) {	} elsif ($slot_status == $res->NOTRESERVABLE) {
return &mt('Reservation not available');	$slotmsg = &mt('Reservation not available');
} elsif ($slot_status == $res->WAITING_FOR_GRADE) {	} elsif ($slot_status == $res->WAITING_FOR_GRADE) {
return &mt('Submission in grading queue');	$slotmsg = &mt('Submission in grading queue');
	}
	if ($slotmsg) {
	if ($res->is_task() \|\| !$due) {
	return $slotmsg;
	}
	$slotinfo = (' ' x 2).'('.$slotmsg.')';
}	}
}	}
}	}
if ($status == $res->OPEN) {	if ($status == $res->OPEN) {
if ($due) {	if ($due) {
if ($res->is_practice()) {	if ($res->is_practice()) {
return &mt("Closes [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'duedate',$part));	return &mt("Closes [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'duedate',$part)).$slotinfo;
} else {	} else {
return &mt("Due [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'end'),$res->symb(),'duedate',$part));	return &mt("Due [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'end'),$res->symb(),'duedate',$part)).$slotinfo;
}	}
} else {	} else {
return &Apache::lonhtmlcommon::direct_parm_link(&mt("Open, no due date"),$res->symb(),'duedate',$part);	return &Apache::lonhtmlcommon::direct_parm_link(&mt("Open, no due date"),$res->symb(),'duedate',$part).$slotinfo;
}	}
}	}
if ($status == $res->PAST_DUE_ANSWER_LATER) {	if (($status == $res->PAST_DUE_ANSWER_LATER) \|\| ($status == $res->PAST_DUE_ATMPT_ANS) \|\| ($status == $res->PAST_DUE_NO_ATMT_ANS)) {
return &mt("Answer open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($answer,'start'),$res->symb(),'answerdate',$part));	return &mt("Answer open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($answer,'start'),$res->symb(),'answerdate',$part));
}	}
if ($status == $res->PAST_DUE_NO_ANSWER) {	if (($status == $res->PAST_DUE_NO_ANSWER) \|\| ($status == $res->PAST_DUE_ATMPT_NOANS) \|\| ($status == $res->PAST_DUE_NO_ATMT_NOANS)) {
if ($res->is_practice()) {	if ($res->is_practice()) {
return &mt("Closed [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'answerdate,duedate',$part));	return &mt("Closed [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'answerdate,duedate',$part));
} else {	} else {
Line 907 sub render_resource {	Line 926 sub render_resource {
my $nonLinkedText = ''; # stuff after resource title not in link	my $nonLinkedText = ''; # stuff after resource title not in link

my $link = $params->{"resourceLink"};	my $link = $params->{"resourceLink"};
	if ($resource->ext()) {
	$link =~ s/\#.+(\?)/$1/g;
	}

# The URL part is not escaped at this point, but the symb is...	# The URL part is not escaped at this point, but the symb is...

Line 927 sub render_resource {	Line 949 sub render_resource {
# links to open and close the folder	# links to open and close the folder

my $whitespace = $location.'/whitespace_21.gif';	my $whitespace = $location.'/whitespace_21.gif';
my $linkopen = "<img src='$whitespace' alt='' />"."<a href=\"$link\">";	my $linkopen = "<img src='$whitespace' alt='' />";
	my $nomodal;
	if (($params->{'modalLink'}) && (!$resource->is_sequence())) {
	if ($link =~m{^(?:\|/adm/wrapper)/ext/([^#]+)}) {
	my $exturl = $1;
	if (($ENV{'SERVER_PORT'} == 443) && ($exturl !~ /^https:/)) {
	$nomodal = 1;
	}
	} elsif (($link eq "/public/$LONCAPA::match_domain/$LONCAPA::match_courseid/syllabus") &&
	($env{'request.course.id'}) && ($ENV{'SERVER_PORT'} == 443) &&
	($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) {
	$nomodal = 1;
	}
	my $esclink = &js_escape($link);
	if ($nomodal) {
	$linkopen .= "<a href=\"#\" onclick=\"javascript:window.open('$esclink','resourcepreview','height=400,width=500,scrollbars=1,resizable=1,menubar=0,location=1'); return false;\" />";
	} else {
	$linkopen .= "<a href=\"$link\" onclick=\"javascript:openMyModal('$esclink',600,500,'yes','true'); return false;\">";
	}
	} else {
	$linkopen .= "<a href=\"$link\">";
	}
my $linkclose = "</a>";	my $linkclose = "</a>";

# Default icon: unknown page	# Default icon: unknown page
Line 956 sub render_resource {	Line 999 sub render_resource {
if ($it->{CONDITION}) {	if ($it->{CONDITION}) {
$nowOpen = !$nowOpen;	$nowOpen = !$nowOpen;
}	}
	my $folderType;
my $folderType = $resource->is_sequence() ? 'folder' : 'page';	if (&advancedUser() && $resource->is_missing_map()) {
	$folderType = 'none';
	} else {
	$folderType = $resource->is_sequence() ? 'folder' : 'page';
	}
my $title=$resource->title;	my $title=$resource->title;
$title=~s/\"/\&qout;/g;	$title=~s/\"/\&qout;/g;
if (!$params->{'resource_no_folder_link'}) {	if (!$params->{'resource_no_folder_link'}) {
Line 981 sub render_resource {	Line 1028 sub render_resource {
# Don't allow users to manipulate folder	# Don't allow users to manipulate folder
$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';	$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';
$icon = "<img class=\"LC_space\" src='$whitespace' alt='' />"."<img class=\"LC_contentImage\" src='$location/$icon' alt=\"".($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" />";	$icon = "<img class=\"LC_space\" src='$whitespace' alt='' />"."<img class=\"LC_contentImage\" src='$location/$icon' alt=\"".($nowOpen ? &mt('Open Folder') : &mt('Close Folder')).' '.$title."\" />";
	if ($params->{'caller'} eq 'sequence') {
$linkopen = "";	$linkopen = "<a href=\"$link\">";
$linkclose = "";	} else {
	$linkopen = "";
	$linkclose = "";
	}
}	}
if ((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) &&	if (((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) \|\|
	(&Apache::lonnet::allowed('cev',$env{'request.course.id'}))) &&
($resource->symb=~/\_\_\_[^\_]+\_\_\_uploaded/)) {	($resource->symb=~/\_\_\_[^\_]+\_\_\_uploaded/)) {
if (!$params->{'map_no_edit_link'}) {	if (!$params->{'map_no_edit_link'}) {
my $icon = &Apache::loncommon::lonhttpdurl('/res/adm/pages').'/editmap.png';	my $icon = &Apache::loncommon::lonhttpdurl('/res/adm/pages').'/editmap.png';
Line 995 sub render_resource {	Line 1046 sub render_resource {
'</a>';	'</a>';
}	}
}	}
}	if ($params->{'mapHidden'} \|\| $resource->randomout()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';
if ($resource->randomout()) {	}
$nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';	} else {
	if ($resource->randomout()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';
	}
}	}
if (!$resource->condval()) {	if (!$resource->condval()) {
$nonLinkedText .= ' <span class="LC_info">('.&mt('conditionally hidden').')</span> ';	$nonLinkedText .= ' <span class="LC_info">('.&mt('conditionally hidden').')</span> ';
Line 1048 sub render_resource {	Line 1102 sub render_resource {
}	}

if (!$params->{'resource_nolink'} && !$resource->is_sequence() && !$resource->is_empty_sequence) {	if (!$params->{'resource_nolink'} && !$resource->is_sequence() && !$resource->is_empty_sequence) {
$result .= "$curMarkerBegin<a href=\"$link\">$title$partLabel</a>$curMarkerEnd$editmapLink$nonLinkedText</td>";	$linkclose = '</a>';
} else {	if ($params->{'modalLink'}) {
$result .= "$curMarkerBegin$linkopen$title$partLabel</a>$curMarkerEnd$editmapLink$nonLinkedText</td>";	my $esclink = &js_escape($link);
	if ($nomodal) {
	$linkopen = "<a href=\"#\" onclick=\"javascript:window.open('$esclink','resourcepreview','height=400,width=500,scrollbars=1,resizable=1,menubar=0,location=1'); return false;\" />";
	} else {
	$linkopen = "<a href=\"$link\" onclick=\"javascript:openMyModal('$esclink',600,500,'yes','true'); return false;\">";
	}
	} else {
	$linkopen = "<a href=\"$link\">";
	}
}	}
	$result .= "$curMarkerBegin$linkopen$title$partLabel$linkclose$curMarkerEnd$editmapLink$nonLinkedText</td>";

return $result;	return $result;
}	}
Line 1342 sub render {	Line 1405 sub render {
my $currenturl = $env{'form.postdata'};	my $currenturl = $env{'form.postdata'};
#$currenturl=~s/^http\:\/\///;	#$currenturl=~s/^http\:\/\///;
#$currenturl=~s/^[^\/]+//;	#$currenturl=~s/^[^\/]+//;
	unless ($args->{'caller'} eq 'sequence') {
$here = $jump = &Apache::lonnet::symbread($currenturl);	$here = $jump = &Apache::lonnet::symbread($currenturl);
	}
}	}
if ($here eq '') {	if (($here eq '') && ($args->{'caller'} ne 'sequence')) {
my $last;	my $last;
if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',	if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
&GDBM_READER(),0640)) {	&GDBM_READER(),0640)) {
Line 1359 sub render {	Line 1423 sub render {
my $mapIterator = $navmap->getIterator(undef, undef, undef, 1);	my $mapIterator = $navmap->getIterator(undef, undef, undef, 1);
my $curRes;	my $curRes;
my $found = 0;	my $found = 0;
	my $here_is_navmaps = 0;
	if ($here =~ m{___\d+___adm/navmaps$}) {
	$here_is_navmaps = 1;
	}

# We only need to do this if we need to open the maps to show the	# We only need to do this if we need to open the maps to show the
# current position. This will change the counter so we can't count	# current position. This will change the counter so we can't count
# for the jump marker with this loop.	# for the jump marker with this loop.
while ($here && ($curRes = $mapIterator->next()) && !$found) {	while ($here && ($curRes = $mapIterator->next()) && !$found && !$here_is_navmaps) {
if (ref($curRes) && $curRes->symb() eq $here) {	if (ref($curRes) && $curRes->symb() eq $here) {
my $mapStack = $mapIterator->getStack();	my $mapStack = $mapIterator->getStack();

Line 1405 sub render {	Line 1473 sub render {
if ($args->{'iterator_map'}) {	if ($args->{'iterator_map'}) {
my $map = $args->{'iterator_map'};	my $map = $args->{'iterator_map'};
$map = $navmap->getResourceByUrl($map);	$map = $navmap->getResourceByUrl($map);
my $firstResource = $map->map_start();	if (ref($map)) {
my $finishResource = $map->map_finish();	my $firstResource = $map->map_start();
	my $finishResource = $map->map_finish();
$args->{'iterator'} = $it = $navmap->getIterator($firstResource, $finishResource, $filterHash, $condition);	$args->{'iterator'} = $it = $navmap->getIterator($firstResource, $finishResource, $filterHash, $condition);
	} else {
	return;
	}
} else {	} else {
$args->{'iterator'} = $it = $navmap->getIterator(undef, undef, $filterHash, $condition,undef,$args->{'include_top_level_map'});	$args->{'iterator'} = $it = $navmap->getIterator(undef, undef, $filterHash, $condition,undef,$args->{'include_top_level_map'});
}	}
Line 1477 sub render {	Line 1548 sub render {
'&here='.&escape($here);	'&here='.&escape($here);
$text='Open all folders';	$text='Open all folders';
}	}
if ($env{'form.register'}) {
$link .= '&register='.$env{'form.register'};
}
if ($args->{'caller'} eq 'navmapsdisplay') {	if ($args->{'caller'} eq 'navmapsdisplay') {
unless ($args->{'notools'}) {	unless ($args->{'notools'}) {
&add_linkitem($args->{'linkitems'},'changefolder',	&add_linkitem($args->{'linkitems'},'changefolder',
Line 1503 sub render {	Line 1571 sub render {
<input type="hidden" name="navurl" value="$querystr" />	<input type="hidden" name="navurl" value="$querystr" />
<input type="hidden" name="navtime" value="$time" />	<input type="hidden" name="navtime" value="$time" />
END	END
if ($env{'form.register'}) {
$result .= '<input type="hidden" name="register" value="'.$env{'form.register'}.'" />';
}
if ($args->{'sort'} eq 'discussion') {	if ($args->{'sort'} eq 'discussion') {
my $totdisc = 0;	my $totdisc = 0;
my $haveDisc = '';	my $haveDisc = '';
Line 1527 END	Line 1592 END
$result.='</form>';	$result.='</form>';
}	}
if (($args->{'caller'} eq 'navmapsdisplay') &&	if (($args->{'caller'} eq 'navmapsdisplay') &&
(&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {	((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) \|\|
	(&Apache::lonnet::allowed('cev',$env{'request.course.id'})))) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
if ($env{'course.'.$env{'request.course.id'}.'.url'} eq	if ($env{'course.'.$env{'request.course.id'}.'.url'} eq
Line 1573 END	Line 1639 END
$args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='$location' alt='' />");	$args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='$location' alt='' />");
$args->{'displayedHereMarker'} = 0;	$args->{'displayedHereMarker'} = 0;

# If we're suppressing empty sequences, look for them here. Use DFS for speed,	# If we're suppressing empty sequences, look for them here.
# since structure actually doesn't matter, except what map has what resources.	# We also do this even if $args->{'suppressEmptySequences'}
if ($args->{'suppressEmptySequences'}) {	# is not true, so we can hide empty sequences for which the
my $dfsit = Apache::lonnavmaps::DFSiterator->new($navmap,	# hiddenresource parameter is set to yes (at map level), or
$it->{FIRST_RESOURCE},	# mark as hidden for users who have $userCanSeeHidden.
$it->{FINISH_RESOURCE},	# Use DFS for speed, since structure actually doesn't matter,
{}, undef, 1);	# except what map has what resources.
my $depth = 0;
$dfsit->next();	my $dfsit = Apache::lonnavmaps::DFSiterator->new($navmap,
my $curRes = $dfsit->next();	$it->{FIRST_RESOURCE},
while ($depth > -1) {	$it->{FINISH_RESOURCE},
if ($curRes == $dfsit->BEGIN_MAP()) { $depth++; }	{}, undef, 1);
if ($curRes == $dfsit->END_MAP()) { $depth--; }
	my $depth = 0;
if (ref($curRes)) {	$dfsit->next();
# Parallel pre-processing: Do sequences have non-filtered-out children?	my $curRes = $dfsit->next();
if ($curRes->is_map()) {	while ($depth > -1) {
$curRes->{DATA}->{HAS_VISIBLE_CHILDREN} = 0;	if ($curRes == $dfsit->BEGIN_MAP()) { $depth++; }
# Sequences themselves do not count as visible children,	if ($curRes == $dfsit->END_MAP()) { $depth--; }
# unless those sequences also have visible children.
# This means if a sequence appears, there's a "promise"	if (ref($curRes)) {
# that there's something under it if you open it, somewhere.	# Parallel pre-processing: Do sequences have non-filtered-out children?
} else {	if ($curRes->is_map()) {
# Not a sequence: if it's filtered, ignore it, otherwise	$curRes->{DATA}->{HAS_VISIBLE_CHILDREN} = 0;
# rise up the stack and mark the sequences as having children	# Sequences themselves do not count as visible children,
if (&$filterFunc($curRes)) {	# unless those sequences also have visible children.
for my $sequence (@{$dfsit->getStack()}) {	# This means if a sequence appears, there's a "promise"
$sequence->{DATA}->{HAS_VISIBLE_CHILDREN} = 1;	# that there's something under it if you open it, somewhere.
}	} elsif ($curRes->src()) {
	# Not a sequence: if it's filtered, ignore it, otherwise
	# rise up the stack and mark the sequences as having children
	if (&$filterFunc($curRes)) {
	for my $sequence (@{$dfsit->getStack()}) {
	$sequence->{DATA}->{HAS_VISIBLE_CHILDREN} = 1;
}	}
}	}
}	}
} continue {
$curRes = $dfsit->next();
}	}
	} continue {
	$curRes = $dfsit->next();
}	}

my $displayedJumpMarker = 0;	my $displayedJumpMarker = 0;
Line 1665 END	Line 1736 END
undef($args->{'sort'});	undef($args->{'sort'});
}	}

	# Determine if page will be served with https in case
	# it contains a syllabus which uses an external URL
	# which points at an http site.

	my ($is_ssl,$cdom,$cnum,$hostname);
	if ($ENV{'SERVER_PORT'} == 443) {
	$is_ssl = 1;
	if ($r) {
	$hostname = $r->hostname();
	} else {
	$hostname = $ENV{'SERVER_NAME'};
	}
	}
	if ($env{'request.course.id'}) {
	$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	$cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	}

	my $inhibitmenu;
	if ($args->{'modalLink'}) {
	$inhibitmenu = '&inhibitmenu=yes';
	}

while (1) {	while (1) {
if ($args->{'sort'}) {	if ($args->{'sort'}) {
Line 1700 END	Line 1793 END
}	}

# If this is an empty sequence and we're filtering them, continue on	# If this is an empty sequence and we're filtering them, continue on
if ($curRes->is_map() && $args->{'suppressEmptySequences'} &&	$args->{'mapHidden'} = 0;
!$curRes->{DATA}->{HAS_VISIBLE_CHILDREN}) {	if (($curRes->is_map()) && (!$curRes->{DATA}->{HAS_VISIBLE_CHILDREN})) {
next;	if ($args->{'suppressEmptySequences'}) {
	next;
	} else {
	my $mapname = &Apache::lonnet::declutter($curRes->src());
	$mapname = &Apache::lonnet::deversion($mapname);
	if (lc($navmap->get_mapparam(undef,$mapname,"0.hiddenresource")) eq 'yes') {
	if ($userCanSeeHidden) {
	$args->{'mapHidden'} = 1;
	} else {
	next;
	}
	}
	}
}	}

# If we're suppressing navmaps and this is a navmap, continue on	# If we're suppressing navmaps and this is a navmap, continue on
Line 1786 END	Line 1891 END
$stack=$it->getStack();	$stack=$it->getStack();
}	}
($src,$symb,$anchor)=getLinkForResource($stack);	($src,$symb,$anchor)=getLinkForResource($stack);
	my $srcHasQuestion = $src =~ /\?/;
	if ($env{'request.course.id'}) {
	if (($is_ssl) && ($src =~ m{^\Q/public/$cdom/$cnum/syllabus\E($\|\?)}) &&
	($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) {
	unless ((&Apache::lonnet::uses_sts()) \|\| (&Apache::lonnet::waf_allssl($hostname))) {
	if ($hostname ne '') {
	$src = 'http://'.$hostname.$src;
	}
	$src .= ($srcHasQuestion? '&' : '?') . 'usehttp=1';
	$srcHasQuestion = 1;
	}
	} elsif (($is_ssl) && ($src =~ m{^\Q/adm/wrapper/ext/\E(?!https:)})) {
	unless ((&Apache::lonnet::uses_sts()) \|\| (&Apache::lonnet::waf_allssl($hostname))) {
	if ($hostname ne '') {
	$src = 'http://'.$hostname.$src;
	}
	$src .= ($srcHasQuestion? '&' : '?') . 'usehttp=1';
	$srcHasQuestion = 1;
	}
	}
	}
if (defined($anchor)) { $anchor='#'.$anchor; }	if (defined($anchor)) { $anchor='#'.$anchor; }
my $srcHasQuestion = $src =~ /\?/;	if (($args->{'caller'} eq 'sequence') && ($curRes->is_map())) {
$args->{"resourceLink"} = $src.	$args->{"resourceLink"} = $src.($srcHasQuestion?'&':'?') .'navmap=1';
($srcHasQuestion?'&':'?') .	} else {
'symb=' . &escape($symb).$anchor;	$args->{"resourceLink"} = $src.
	($srcHasQuestion?'&':'?') .
	'symb=' . &escape($symb).$inhibitmenu.$anchor;
	}
}	}
# Now, we've decided what parts to show. Loop through them and	# Now, we've decided what parts to show. Loop through them and
# show them.	# show them.
Line 1818 END	Line 1947 END
$currentJumpDelta) {	$currentJumpDelta) {
# Jam the anchor after the <td> tag;	# Jam the anchor after the <td> tag;
# necessary for valid HTML (which Mozilla requires)	# necessary for valid HTML (which Mozilla requires)
$colHTML =~ s/\>/\>\<a name="curloc" \/\>/;	$colHTML =~ s/\>/\>\<a name="curloc" \>\<\/a\>/;
$displayedJumpMarker = 1;	$displayedJumpMarker = 1;
}	}
$result .= $colHTML . "\n";	$result .= $colHTML . "\n";
Line 2204 sub generate_email_discuss_status {	Line 2333 sub generate_email_discuss_status {
foreach my $msgid (@keys) {	foreach my $msgid (@keys) {
if ((!$emailstatus{$msgid}) \|\| ($emailstatus{$msgid} eq 'new')) {	if ((!$emailstatus{$msgid}) \|\| ($emailstatus{$msgid} eq 'new')) {
my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,	my ($sendtime,$shortsubj,$fromname,$fromdomain,$status,$fromcid,
$symb,$error) = &Apache::lonmsg::unpackmsgid($msgid);	$symb,$error) = &Apache::lonmsg::unpackmsgid(&LONCAPA::escape($msgid));
&Apache::lonenc::check_decrypt(\$symb);	&Apache::lonenc::check_decrypt(\$symb);
if (($fromcid ne '') && ($fromcid ne $cid)) {	if (($fromcid ne '') && ($fromcid ne $cid)) {
next;	next;
Line 2701 sub parmval_real {	Line 2830 sub parmval_real {
if (defined($pack_def)) { return [$pack_def,'resource']; }	if (defined($pack_def)) { return [$pack_def,'resource']; }
return [''];	return [''];
}	}

	sub recurseup_maps {
	my ($self,$mapname) = @_;
	my @recurseup;
	if ($mapname) {
	my $res = $self->getResourceByUrl($mapname);
	if (ref($res)) {
	my @pcs = split(/,/,$res->map_hierarchy());
	shift(@pcs);
	if (@pcs) {
	@recurseup = map { &Apache::lonnet::declutter($self->getByMapPc($_)->src()); } reverse(@pcs);
	}
	}
	}
	return @recurseup;
	}

	sub recursed_crumbs {
	my ($self,$mapurl,$restitle) = @_;
	my (@revmapinfo,@revmapres);
	my $mapres = $self->getResourceByUrl($mapurl);
	if (ref($mapres)) {
	@revmapres = map { $self->getByMapPc($_); } split(/,/,$mapres->map_breadcrumbs());
	shift(@revmapres);
	}
	my $allowedlength = 60;
	my $minlength = 5;
	my $allowedtitle = 30;
	if (($env{'environment.icons'} eq 'iconsonly') && (!$env{'browser.mobile'})) {
	$allowedlength = 100;
	$allowedtitle = 70;
	}
	if (length($restitle) > $allowedtitle) {
	$restitle = &truncate_crumb_text($restitle,$allowedtitle);
	}
	my $totallength = length($restitle);
	my @links;

	foreach my $map (@revmapres) {
	my $pc = $map->map_pc();
	next if ((!$pc) \|\| ($pc == 1));
	push(@links,$map);
	my $text = $map->title();
	if ($text eq '') {
	$text = '...';
	}
	push(@revmapinfo,{'href' => $env{'request.use_absolute'}.$map->link().'?navmap=1','text' => $text,'no_mt' => 1,});
	$totallength += length($text);
	}
	my $numlinks = scalar(@links);
	if ($numlinks) {
	if ($totallength - $allowedlength > 0) {
	my $available = $allowedlength - length($restitle);
	my $avg = POSIX::ceil($available/$numlinks);
	if ($avg < $minlength) {
	$avg = $minlength;
	}
	@revmapinfo = ();
	foreach my $map (@links) {
	my $title = $map->title();
	if ($title eq '') {
	$title = '...';
	}
	my $showntitle = &truncate_crumb_text($title,$avg);
	if ($showntitle ne '') {
	push(@revmapinfo,{'href' => $env{'request.use_absolute'}.$map->link().'?navmap=1','text' => $showntitle,'no_mt' => 1,});
	}
	}
	}
	}
	if ($restitle ne '') {
	push(@revmapinfo,{'text' => $restitle, 'no_mt' => 1});
	}
	return @revmapinfo;
	}

	sub truncate_crumb_text {
	my ($title,$limit) = @_;
	my $showntitle = '';
	if (length($title) > $limit) {
	my @words = split(/\b\s*/,$title);
	if (@words == 1) {
	$showntitle = substr($title,0,$limit).' ...';
	} else {
	my $linklength = 0;
	my $num = 0;
	foreach my $word (@words) {
	$linklength += 1+length($word);
	if ($word eq '-') {
	$showntitle =~ s/ $//;
	$showntitle .= $word;
	} elsif ($linklength > $limit) {
	if ($num < @words) {
	$showntitle .= $word.' ...';
	last;
	} else {
	$showntitle .= $word;
	}
	} else {
	$showntitle .= $word.' ';
	}
	}
	$showntitle =~ s/ $//;
	}
	return $showntitle;
	} else {
	return $title;
	}
	}

#	#
# Determines the open/close dates for printing a map that	# Determines the open/close dates for printing a map that
# encloses a resource.	# encloses a resource.
Line 2712 sub map_printdates {	Line 2951 sub map_printdates {



my $opendate = $self->get_mapparam($res->symb(), "$part.printstartdate");	my $opendate = $self->get_mapparam($res->symb(),'',"$part.printstartdate");
my $closedate= $self->get_mapparam($res->symb(), "$part.printenddate");	my $closedate= $self->get_mapparam($res->symb(),'', "$part.printenddate");


return ($opendate, $closedate);	return ($opendate, $closedate);
}	}

sub get_mapparam {	sub get_mapparam {
my ($self, $symb, $what) = @_;	my ($self, $symb, $mapname, $what) = @_;

# Ensure the course option hash is populated:	# Ensure the course option hash is populated:

Line 2739 sub get_mapparam {	Line 2978 sub get_mapparam {
my $uname=$self->{USERNAME};	my $uname=$self->{USERNAME};
my $udom=$self->{DOMAIN};	my $udom=$self->{DOMAIN};

unless ($symb) { return ['']; }	unless ($symb \|\| $mapname) { return; }
my $result='';	my $result='';
	my ($recursed,@recurseup);

# Figure out which map we are in.	# Figure out which map we are in.

my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);	if ($symb && !$mapname) {
$mapname = &Apache::lonnet::deversion($mapname);	my ($id,$fn);
	($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
	$mapname = &Apache::lonnet::deversion($mapname);
	}

my $rwhat=$what;	my $rwhat=$what;
$what=~s/^parameter\_//;	$what=~s/^parameter\_//;
Line 2779 sub get_mapparam {	Line 3020 sub get_mapparam {
if (defined($$useropt{$courselevel})) {	if (defined($$useropt{$courselevel})) {
return $$useropt{$courselevel};	return $$useropt{$courselevel};
}	}
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	unless ($recursed) {
	@recurseup = $self->recurseup_maps($mapname);
	$recursed = 1;
	}
	foreach my $item (@recurseup) {
	my $norecursechk=$usercourseprefix.'.'.$item.'___(all).'.$what;
	if (defined($$useropt{$norecursechk})) {
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	return $$useropt{$norecursechk};
	}
	}
	}
	}
}	}

# Check course -- group	# Check course -- group
Line 2789 sub get_mapparam {	Line 3044 sub get_mapparam {
if (defined($$courseopt{$grplevel})) {	if (defined($$courseopt{$grplevel})) {
return $$courseopt{$grplevel};	return $$courseopt{$grplevel};
}	}
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	unless ($recursed) {
	@recurseup = $self->recurseup_maps($mapname);
	$recursed = 1;
	}
	foreach my $item (@recurseup) {
	my $norecursechk=$usercourseprefix.'.['.$cgroup.'].'.$item.'___(all).'.$what;
	if (defined($$courseopt{$norecursechk})) {
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	return $$courseopt{$norecursechk};
	}
	}
	}
	}
}	}

# Check course -- section	# Check course -- section
Line 2801 sub get_mapparam {	Line 3070 sub get_mapparam {
if (defined($$courseopt{$seclevel})) {	if (defined($$courseopt{$seclevel})) {
return $$courseopt{$seclevel};	return $$courseopt{$seclevel};
}	}
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	unless ($recursed) {
	@recurseup = $self->recurseup_maps($mapname);
	$recursed = 1;
	}
	foreach my $item (@recurseup) {
	my $norecursechk=$usercourseprefix.'.['.$csec.'].'.$item.'___(all).'.$what;
	if (defined($$courseopt{$norecursechk})) {
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	return $$courseopt{$norecursechk};
	}
	}
	}
	}
}	}
# Check the map parameters themselves:	# Check the map parameters themselves:

my $thisparm = $$parmhash{$symbparm};	if ($symb) {
if (defined($thisparm)) {	my $symbparm=$symb.'.'.$what;
return $thisparm;	my $thisparm = $$parmhash{$symbparm};
	if (defined($thisparm)) {
	return $thisparm;
	}
}	}


Line 2816 sub get_mapparam {	Line 3102 sub get_mapparam {
if (defined($$courseopt{$courselevel})) {	if (defined($$courseopt{$courselevel})) {
return $$courseopt{$courselevel};	return $$courseopt{$courselevel};
}	}
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	unless ($recursed) {
	@recurseup = $self->recurseup_maps($mapname);
	$recursed = 1;
	}
	foreach my $item (@recurseup) {
	my $norecursechk=$usercourseprefix.'.'.$item.'___(all).'.$what;
	if (defined($$courseopt{$norecursechk})) {
	if ($what =~ /\.(encrypturl\|hiddenresource)$/) {
	return $$courseopt{$norecursechk};
	}
	}
	}
	}
}	}
return undef; # Unefined if we got here.	return undef; # Unefined if we got here.
}	}
Line 2871 sub getcourseparam {	Line 3171 sub getcourseparam {
#	#
# We want the course level stuff from the way	# We want the course level stuff from the way
# parmval_real operates	# parmval_real operates
# TODO: Fator some of this stuff out of	# TODO: Factor some of this stuff out of
# both parmval_real and here	# both parmval_real and here
#	#
my $courselevel = $cid . '.' . $what;	my $courselevel = $cid . '.' . $what;
Line 2888 sub getcourseparam {	Line 3188 sub getcourseparam {
}	}
# Try for the group's course level option:	# Try for the group's course level option:

if ($uname ne '' and defined($courseopt)) {	if ($cgroup ne '' and defined($courseopt)) {
if (defined($$courseopt{$grplevel})) {	if (defined($$courseopt{$grplevel})) {
return $$courseopt{$grplevel};	return $$courseopt{$grplevel};
}	}
Line 2896 sub getcourseparam {	Line 3196 sub getcourseparam {

# Try for section level parameters:	# Try for section level parameters:

if ($csec and defined($courseopt)) {	if ($csec ne '' and defined($courseopt)) {
if (defined($$courseopt{$seclevel})) {	if (defined($$courseopt{$seclevel})) {
return $$courseopt{$seclevel};	return $$courseopt{$seclevel};
}	}
}	}
# Try for 'additional' course parameterse:	# Try for 'additional' course parameters:

if (defined($courseopt)) {	if (defined($courseopt)) {
if (defined($$courseopt{$courselevel})) {	if (defined($$courseopt{$courselevel})) {
Line 2927 resource appears multiple times in the c	Line 3227 resource appears multiple times in the c
will be returned (useful for maps), unless the multiple parameter has	will be returned (useful for maps), unless the multiple parameter has
been included, in which case all instances are returned in an array.	been included, in which case all instances are returned in an array.

=item * B<retrieveResources>(map, filterFunc, recursive, bailout, showall):	=item * B<retrieveResources>(map, filterFunc, recursive, bailout, showall, noblockcheck):

The map is a specification of a map to retreive the resources from,	The map is a specification of a map to retreive the resources from,
either as a url or as an object. The filterFunc is a reference to a	either as a url or as an object. The filterFunc is a reference to a
Line 2936 true if the resource should be included,	Line 3236 true if the resource should be included,
be. If recursive is true, the map will be recursively examined,	be. If recursive is true, the map will be recursively examined,
otherwise it will not be. If bailout is true, the function will return	otherwise it will not be. If bailout is true, the function will return
as soon as it finds a resource, if false it will finish. If showall is	as soon as it finds a resource, if false it will finish. If showall is
true it will not hide maps that contain nothing but one other map. By	true it will not hide maps that contain nothing but one other map. The
default, the map is the top-level map of the course, filterFunc is a	noblockcheck arg is propagated to become the sixth arg in the call to
function that always returns 1, recursive is true, bailout is false,	lonnet::allowed when checking a resource's availability during collection
showall is false. The resources will be returned in a list containing	of resources using the iterator. noblockcheck needs to be true if
the resource objects for the corresponding resources, with B<no	retrieveResources() was called by a routine that itself was called by
structure information> in the list; regardless of branching,	lonnet::allowed, in order to avoid recursion. By default the map
recursion, etc., it will be a flat list.	is the top-level map of the course, filterFunc is a function that
	always returns 1, recursive is true, bailout is false, showall is
	false. The resources will be returned in a list containing the
	resource objects for the corresponding resources, with B<no structure
	information> in the list; regardless of branching, recursion, etc.,
	it will be a flat list.

Thus, this is suitable for cases where you don't want the structure,	Thus, this is suitable for cases where you don't want the structure,
just a list of all resources. It is also suitable for finding out how	just a list of all resources. It is also suitable for finding out how
Line 3009 sub retrieveResources {	Line 3314 sub retrieveResources {
my $bailout = shift;	my $bailout = shift;
if (!defined($bailout)) { $bailout = 0; }	if (!defined($bailout)) { $bailout = 0; }
my $showall = shift;	my $showall = shift;
	my $noblockcheck = shift;
# Create the necessary iterator.	# Create the necessary iterator.
if (!ref($map)) { # assume it's a url of a map.	if (!ref($map)) { # assume it's a url of a map.
$map = $self->getResourceByUrl($map);	$map = $self->getResourceByUrl($map);
Line 3038 sub retrieveResources {	Line 3344 sub retrieveResources {
# Run down the iterator and collect the resources.	# Run down the iterator and collect the resources.
my $curRes;	my $curRes;

while ($curRes = $it->next()) {	while ($curRes = $it->next(undef,$noblockcheck)) {
if (ref($curRes)) {	if (ref($curRes)) {
if (!&$filterFunc($curRes)) {	if (!&$filterFunc($curRes)) {
next;	next;
Line 3189 Note that inside of the loop, it's frequ	Line 3495 Note that inside of the loop, it's frequ
resource objects will be references, and any non-references will	resource objects will be references, and any non-references will
be the tokens described above.	be the tokens described above.

Also note there is some old code floating around that trys to track	The next() routine can take two (optional) arguments:
	closeAllPages - if true will not recurse down a .page
	noblockcheck - passed to browsePriv() for passing as sixth arg to
	call to lonnet::allowed. This needs to be set if retrieveResources
	was already called from another routine called within lonnet::allowed,
	so as to prevent recursion.

	Also note there is some old code floating around that tries to track
the depth of the iterator to see when it's done; do not copy that	the depth of the iterator to see when it's done; do not copy that
code. It is difficult to get right and harder to understand than	code. It is difficult to get right and harder to understand than
this. They should be migrated to this new style.	this. They should be migrated to this new style.
Line 3365 sub new {	Line 3678 sub new {
sub next {	sub next {
my $self = shift;	my $self = shift;
my $closeAllPages=shift;	my $closeAllPages=shift;
	my $noblockcheck = shift;
if ($self->{FINISHED}) {	if ($self->{FINISHED}) {
return END_ITERATOR();	return END_ITERATOR();
}	}
Line 3499 sub next {	Line 3813 sub next {
# That ends the main iterator logic. Now, do we want to recurse	# That ends the main iterator logic. Now, do we want to recurse
# down this map (if this resource is a map)?	# down this map (if this resource is a map)?
if ( ($self->{HERE}->is_sequence() \|\| (!$closeAllPages && $self->{HERE}->is_page())) &&	if ( ($self->{HERE}->is_sequence() \|\| (!$closeAllPages && $self->{HERE}->is_page())) &&
(defined($self->{FILTER}->{$self->{HERE}->map_pc()}) xor $self->{CONDITION})) {	(defined($self->{FILTER}->{$self->{HERE}->map_pc()}) xor $self->{CONDITION}) &&
	($env{'request.role.adv'} \|\| !$self->{HERE}->randomout())) {
$self->{RECURSIVE_ITERATOR_FLAG} = 1;	$self->{RECURSIVE_ITERATOR_FLAG} = 1;
my $firstResource = $self->{HERE}->map_start();	my $firstResource = $self->{HERE}->map_start();
my $finishResource = $self->{HERE}->map_finish();	my $finishResource = $self->{HERE}->map_finish();
Line 3514 sub next {	Line 3829 sub next {
# If this is a blank resource, don't actually return it.	# If this is a blank resource, don't actually return it.
# Should you ever find you need it, make sure to add an option to the code	# Should you ever find you need it, make sure to add an option to the code
# that you can use; other things depend on this behavior.	# that you can use; other things depend on this behavior.
my $browsePriv = $self->{HERE}->browsePriv();	my $browsePriv = $self->{HERE}->browsePriv($noblockcheck);
if (!$self->{HERE}->src() \|\|	if (!$self->{HERE}->src() \|\|
(!($browsePriv eq 'F') && !($browsePriv eq '2')) ) {	(!($browsePriv eq 'F') && !($browsePriv eq '2')) ) {
return $self->next($closeAllPages);	return $self->next($closeAllPages);
Line 3846 sub new {	Line 4161 sub new {
# about this resource in. Not used by the resource object	# about this resource in. Not used by the resource object
# directly.	# directly.
$self->{DATA} = {};	$self->{DATA} = {};

bless($self);	bless($self);

	# This is a speed optimization, to avoid calling symb() too often.
	$self->{SYMB} = $self->symb();

return $self;	return $self;
}	}

Line 3960 sub src {	Line 4278 sub src {
}	}
sub shown_symb {	sub shown_symb {
my $self=shift;	my $self=shift;
if ($self->encrypted()) {return &Apache::lonenc::encrypted($self->symb());}	if ($self->encrypted()) {return &Apache::lonenc::encrypted($self->{SYMB});}
return $self->symb();	return $self->{SYMB};
}	}
sub id {	sub id {
my $self=shift;	my $self=shift;
Line 3974 sub enclosing_map_src {	Line 4292 sub enclosing_map_src {
}	}
sub symb {	sub symb {
my $self=shift;	my $self=shift;
	if (defined($self->{SYMB})) { return $self->{SYMB}; }
(my $first, my $second) = $self->{ID} =~ /(\d+).(\d+)/;	(my $first, my $second) = $self->{ID} =~ /(\d+).(\d+)/;
my $symbSrc = &Apache::lonnet::declutter($self->src());	my $symbSrc = &Apache::lonnet::declutter($self->src());
my $symb = &Apache::lonnet::declutter($self->navHash('map_id_'.$first))	my $symb = &Apache::lonnet::declutter($self->navHash('map_id_'.$first))
Line 3982 sub symb {	Line 4301 sub symb {
}	}
sub wrap_symb {	sub wrap_symb {
my $self = shift;	my $self = shift;
return $self->{NAV_MAP}->wrap_symb($self->symb());	return $self->{NAV_MAP}->wrap_symb($self->{SYMB});
}	}
sub title {	sub title {
my $self=shift;	my $self=shift;
Line 4164 sub is_sequence {	Line 4483 sub is_sequence {
return $self->navHash("is_map_", 1) &&	return $self->navHash("is_map_", 1) &&
$self->navHash("map_type_" . $self->map_pc()) eq 'sequence';	$self->navHash("map_type_" . $self->map_pc()) eq 'sequence';
}	}
	sub is_missing_map {
	my $self=shift;
	return $self->navHash("is_map_", 1) &&
	$self->navHash("map_type_" . $self->map_pc()) eq 'none';
	}
sub is_survey {	sub is_survey {
my $self = shift();	my $self = shift();
my $part = shift();	my $part = shift();
Line 4205 sub parmval {	Line 4529 sub parmval {
if (!defined($part)) {	if (!defined($part)) {
$part = '0';	$part = '0';
}	}
return $self->{NAV_MAP}->parmval($part.'.'.$what, $self->symb());	return $self->{NAV_MAP}->parmval($part.'.'.$what, $self->{SYMB});
}	}

=pod	=pod
Line 4244 Returns a string with a comma-separated	Line 4568 Returns a string with a comma-separated
for the hierarchy of maps containing a map, with the top level	for the hierarchy of maps containing a map, with the top level
map first, then descending to deeper levels, with the enclosing map last.	map first, then descending to deeper levels, with the enclosing map last.

	=item * B<map_breadcrumbs>:

	Same as map_hierarchy, except maps containing only a single itemm if
	it's a map, or containing no items are omitted, unless it's the top
	level map (map_pc = 1), which is always included.

=back	=back

=cut	=cut
Line 4279 sub map_hierarchy {	Line 4609 sub map_hierarchy {
my $pc = $self->map_pc();	my $pc = $self->map_pc();
return $self->navHash("map_hierarchy_$pc", 0);	return $self->navHash("map_hierarchy_$pc", 0);
}	}
	sub map_breadcrumbs {
	my $self = shift;
	my $pc = $self->map_pc();
	return $self->navHash("map_breadcrumbs_$pc", 0);
	}

#####	#####
# Property queries	# Property queries
Line 4458 sub awarded {	Line 4793 sub awarded {
my $self = shift; my $part = shift;	my $self = shift; my $part = shift;
$self->{NAV_MAP}->get_user_data();	$self->{NAV_MAP}->get_user_data();
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.awarded'};	return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.awarded'};
}	}
sub taskversion {	sub taskversion {
my $self = shift; my $part = shift;	my $self = shift; my $part = shift;
$self->{NAV_MAP}->get_user_data();	$self->{NAV_MAP}->get_user_data();
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.version'};	return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.version'};
}	}
sub taskstatus {	sub taskstatus {
my $self = shift; my $part = shift;	my $self = shift; my $part = shift;
$self->{NAV_MAP}->get_user_data();	$self->{NAV_MAP}->get_user_data();
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$self->taskversion($part).'.'.$part.'.status'};	return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$self->taskversion($part).'.'.$part.'.status'};
}	}
sub solved {	sub solved {
my $self = shift; my $part = shift;	my $self = shift; my $part = shift;
$self->{NAV_MAP}->get_user_data();	$self->{NAV_MAP}->get_user_data();
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.solved'};	return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.solved'};
}	}
sub checkedin {	sub checkedin {
my $self = shift; my $part = shift;	my $self = shift; my $part = shift;
Line 4484 sub checkedin {	Line 4819 sub checkedin {
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
if ($self->is_task()) {	if ($self->is_task()) {
my $version = $self->taskversion($part);	my $version = $self->taskversion($part);
return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$version .'.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$version .'.'.$part.'.checkedin.slot'});	return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$version .'.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$version .'.'.$part.'.checkedin.slot'});
} else {	} else {
return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.checkedin.slot'});	return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.checkedin.slot'});
}	}
}	}
# this should work exactly like the copy in lonhomework.pm	# this should work exactly like the copy in lonhomework.pm
Line 4505 sub duedate {	Line 4840 sub duedate {
my $due_date=$self->parmval("duedate", $part);	my $due_date=$self->parmval("duedate", $part);
if ($interval[0] =~ /\d+/) {	if ($interval[0] =~ /\d+/) {
my $first_access=&Apache::lonnet::get_first_access($interval[1],	my $first_access=&Apache::lonnet::get_first_access($interval[1],
$self->symb);	$self->{SYMB});
if (defined($first_access)) {	if (defined($first_access)) {
my $interval = $first_access+$interval[0];	my $interval = $first_access+$interval[0];
$date = (!$due_date \|\| $interval < $due_date) ? $interval	$date = (!$due_date \|\| $interval < $due_date) ? $interval
Line 4578 sub weight {	Line 4913 sub weight {
my $self = shift; my $part = shift;	my $self = shift; my $part = shift;
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',	my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
$self->symb(), $self->{DOMAIN},	$self->{SYMB}, $self->{DOMAIN},
$self->{USERNAME},	$self->{USERNAME},
$env{'request.course.sec'});	$env{'request.course.sec'});
return $weight;	return $weight;
Line 4587 sub part_display {	Line 4922 sub part_display {
my $self= shift(); my $partID = shift();	my $self= shift(); my $partID = shift();
if (! defined($partID)) { $partID = '0'; }	if (! defined($partID)) { $partID = '0'; }
my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',	my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',
$self->symb);	$self->{SYMB});
if (! defined($display) \|\| $display eq '') {	if (! defined($display) \|\| $display eq '') {
$display = $partID;	$display = $partID;
}	}
Line 4607 sub getReturnHash {	Line 4942 sub getReturnHash {
my $self = shift;	my $self = shift;

if (!defined($self->{RETURN_HASH})) {	if (!defined($self->{RETURN_HASH})) {
my %tmpHash = &Apache::lonnet::restore($self->symb(),undef,$self->{DOMAIN},$self->{USERNAME});	my %tmpHash = &Apache::lonnet::restore($self->{SYMB},undef,$self->{DOMAIN},$self->{USERNAME});
$self->{RETURN_HASH} = \%tmpHash;	$self->{RETURN_HASH} = \%tmpHash;
}	}
}	}
Line 4672 and use the link as appropriate.	Line 5007 and use the link as appropriate.

sub hasDiscussion {	sub hasDiscussion {
my $self = shift;	my $self = shift;
return $self->{NAV_MAP}->hasDiscussion($self->symb());	return $self->{NAV_MAP}->hasDiscussion($self->{SYMB});
}	}

sub last_post_time {	sub last_post_time {
my $self = shift;	my $self = shift;
return $self->{NAV_MAP}->last_post_time($self->symb());	return $self->{NAV_MAP}->last_post_time($self->{SYMB});
}	}

sub discussion_info {	sub discussion_info {
my ($self,$filter) = @_;	my ($self,$filter) = @_;
return $self->{NAV_MAP}->discussion_info($self->symb(),$filter);	return $self->{NAV_MAP}->discussion_info($self->{SYMB},$filter);
}	}

sub getFeedback {	sub getFeedback {
my $self = shift;	my $self = shift;
my $source = $self->src();	my $source = $self->src();
my $symb = $self->symb();	my $symb = $self->{SYMB};
if ($source =~ /^\/res\//) { $source = substr $source, 5; }	if ($source =~ /^\/res\//) { $source = substr $source, 5; }
return $self->{NAV_MAP}->getFeedback($symb,$source);	return $self->{NAV_MAP}->getFeedback($symb,$source);
}	}
Line 4696 sub getFeedback {	Line 5031 sub getFeedback {
sub getErrors {	sub getErrors {
my $self = shift;	my $self = shift;
my $source = $self->src();	my $source = $self->src();
my $symb = $self->symb();	my $symb = $self->{SYMB};
if ($source =~ /^\/res\//) { $source = substr $source, 5; }	if ($source =~ /^\/res\//) { $source = substr $source, 5; }
return $self->{NAV_MAP}->getErrors($symb,$source);	return $self->{NAV_MAP}->getErrors($symb,$source);
}	}
Line 4846 sub extractParts {	Line 5181 sub extractParts {
if ($partorder) {	if ($partorder) {
my @parts;	my @parts;
for my $part (split (/,/,$partorder)) {	for my $part (split (/,/,$partorder)) {
if (!Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {	if (!Apache::loncommon::check_if_partid_hidden($part, $self->{SYMB})) {
push @parts, $part;	push @parts, $part;
$parts{$part} = 1;	$parts{$part} = 1;
}	}
Line 4864 sub extractParts {	Line 5199 sub extractParts {
my $part = $1;	my $part = $1;
# This floods the logs if it blows up	# This floods the logs if it blows up
if (defined($parts{$part})) {	if (defined($parts{$part})) {
&Apache::lonnet::logthis("$part multiply defined in metadata for " . $self->symb());	&Apache::lonnet::logthis("$part multiply defined in metadata for " . $self->{SYMB});
}	}

# check to see if part is turned off.	# check to see if part is turned off.

if (!Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {	if (!Apache::loncommon::check_if_partid_hidden($part, $self->{SYMB})) {
$parts{$part} = 1;	$parts{$part} = 1;
}	}
}	}
Line 5006 The problem will be opened later.	Line 5341 The problem will be opened later.

Open and not yet due.	Open and not yet due.


=item * B<PAST_DUE_ANSWER_LATER>:	=item * B<PAST_DUE_ANSWER_LATER>:

The due date has passed, but the answer date has not yet arrived.	The due date has passed, but the answer date has not yet arrived.
Line 5019 The due date has passed and there is no	Line 5353 The due date has passed and there is no

The answer date is here.	The answer date is here.

	=item * B<NOTHING_SET>:

	No dates have been set for this problem at all.

	=item * B<PAST_DUE_ATMPT_ANS>:

	The due date has passed, feedback is suppressed, the problem was attempted, and the answer date has not yet arrived.

	=item * B<PAST_DUE_ATMPT_NOANS>:

	The due date has passed, feedback is suppressed, the problem was attempted, and there is no answer opening date set.

	=item * B<PAST_DUE_NO_ATMT_ANS>:

	The due date has passed, feedback is suppressed, the problem was not attempted, and the answer date has not yet arrived.

	=item * B<PAST_DUE_NO_ATMT_NOANS>:

	The due date has passed, feedback is suppressed, the problem was not attempted, and there is no answer opening date set.

=item * B<NETWORK_FAILURE>:	=item * B<NETWORK_FAILURE>:

The information is unknown due to network failure.	The information is unknown due to network failure.
Line 5034 sub PAST_DUE_NO_ANSWER { return 2; }	Line 5388 sub PAST_DUE_NO_ANSWER { return 2; }
sub PAST_DUE_ANSWER_LATER { return 3; }	sub PAST_DUE_ANSWER_LATER { return 3; }
sub ANSWER_OPEN { return 4; }	sub ANSWER_OPEN { return 4; }
sub NOTHING_SET { return 5; }	sub NOTHING_SET { return 5; }
	sub PAST_DUE_ATMPT_ANS { return 6; }
	sub PAST_DUE_ATMPT_NOANS { return 7; }
	sub PAST_DUE_NO_ATMT_ANS { return 8; }
	sub PAST_DUE_NO_ATMT_NOANS { return 9; }
sub NETWORK_FAILURE { return 100; }	sub NETWORK_FAILURE { return 100; }

# getDateStatus gets the date status for a given problem part.	# getDateStatus gets the date status for a given problem part.
Line 5223 set.	Line 5581 set.
The problem is past due, not considered correct, and an answer date in	The problem is past due, not considered correct, and an answer date in
the future is set.	the future is set.

	=item * B<PAST_DUE_ATMPT_ANS>:

	The problem is past due, feedback is suppressed, the problem was
	attempted and an answer date in the future is set.

	=item * B<PAST_DUE_ATMPT_NOANS>:

	The problem is past due, feedback is suppressed, the problem was
	attempted and no answer date is set.

	=item * B<PAST_DUE_NO_ATMT_ANS>:

	The problem is past due, feedback is suppressed, the problem was
	not attempted and an answer date in the future is set.

	=item * B<PAST_DUE_NO_ATMT_NOANS>:

	The problem is past due, feedback is suppressed, the problem was
	not attempted and no answer date is set.

=item * B<ANSWER_OPEN>:	=item * B<ANSWER_OPEN>:

The problem is past due, not correct, and the answer is now available.	The problem is past due, not correct, and the answer is now available.
Line 5305 sub status {	Line 5683 sub status {
# There are a few whole rows we can dispose of:	# There are a few whole rows we can dispose of:
if ($completionStatus == CORRECT \|\|	if ($completionStatus == CORRECT \|\|
$completionStatus == CORRECT_BY_OVERRIDE ) {	$completionStatus == CORRECT_BY_OVERRIDE ) {
if ( $suppressFeedback ) { return ANSWER_SUBMITTED }	if ( $suppressFeedback ) {
	if ($dateStatus == PAST_DUE_ANSWER_LATER \|\|
	$dateStatus == PAST_DUE_NO_ANSWER ) {
	if ($dateStatus == PAST_DUE_ANSWER_LATER) {
	return PAST_DUE_ATMPT_ANS;
	} else {
	return PAST_DUE_ATMPT_NOANS;
	}
	} else {
	return ANSWER_SUBMITTED;
	}
	}
my $awarded=$self->awarded($part);	my $awarded=$self->awarded($part);
if ($awarded < 1 && $awarded > 0) {	if ($awarded < 1 && $awarded > 0) {
return PARTIALLY_CORRECT;	return PARTIALLY_CORRECT;
Line 5344 sub status {	Line 5733 sub status {

if ($dateStatus == PAST_DUE_ANSWER_LATER \|\|	if ($dateStatus == PAST_DUE_ANSWER_LATER \|\|
$dateStatus == PAST_DUE_NO_ANSWER ) {	$dateStatus == PAST_DUE_NO_ANSWER ) {
return $suppressFeedback ? ANSWER_SUBMITTED : $dateStatus;	if ($suppressFeedback) {
	if ($completionStatus == NOT_ATTEMPTED) {
	if ($dateStatus == PAST_DUE_ANSWER_LATER) {
	return PAST_DUE_NO_ATMT_ANS;
	} else {
	return PAST_DUE_NO_ATMT_NOANS;
	}
	} else {
	if ($dateStatus == PAST_DUE_ANSWER_LATER) {
	return PAST_DUE_ATMPT_ANS;
	} else {
	return PAST_DUE_ATMPT_NOANS;
	}
	}
	} else {
	return $dateStatus;
	}
}	}

if ($dateStatus == ANSWER_OPEN) {	if ($dateStatus == ANSWER_OPEN) {
Line 5374 sub status {	Line 5779 sub status {
sub check_for_slot {	sub check_for_slot {
my $self = shift;	my $self = shift;
my $part = shift;	my $part = shift;
my $symb = $self->symb();	my $symb = $self->{SYMB};
my ($use_slots,$available,$availablestudent) = $self->slot_control($part);	my ($use_slots,$available,$availablestudent) = $self->slot_control($part);
if (($use_slots ne '') && ($use_slots !~ /^\sno\s$/i)) {	if (($use_slots ne '') && ($use_slots !~ /^\sno\s$/i)) {
my @slots = (split(/:/,$availablestudent),split(/:/,$available));	my @slots = (split(/:/,$availablestudent),split(/:/,$available));
Line 5383 sub check_for_slot {	Line 5788 sub check_for_slot {
my $cnum=$env{'course.'.$cid.'.num'};	my $cnum=$env{'course.'.$cid.'.num'};
my $now = time;	my $now = time;
my $num_usable_slots = 0;	my $num_usable_slots = 0;
	my ($checkedin,$checkedinslot,%consumed_uniq,%slots);
if (@slots > 0) {	if (@slots > 0) {
my %slots=&Apache::lonnet::get('slots',[@slots],$cdom,$cnum);	%slots=&Apache::lonnet::get('slots',[@slots],$cdom,$cnum);
if (&Apache::lonnet::error(%slots)) {	if (&Apache::lonnet::error(%slots)) {
return (UNKNOWN);	return (UNKNOWN);
}	}
my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');	my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');
my ($checkedin,$checkedinslot);
foreach my $slot_name (@sorted_slots) {	foreach my $slot_name (@sorted_slots) {
next if (!defined($slots{$slot_name}) \|\| !ref($slots{$slot_name}));	next if (!defined($slots{$slot_name}) \|\| !ref($slots{$slot_name}));
my $end = $slots{$slot_name}->{'endtime'};	my $end = $slots{$slot_name}->{'endtime'};
Line 5413 sub check_for_slot {	Line 5818 sub check_for_slot {
($checkedin,$checkedinslot) = $self->checkedin();	($checkedin,$checkedinslot) = $self->checkedin();
unless ((grep(/^\Q$checkedin\E/,@proctors)) &&	unless ((grep(/^\Q$checkedin\E/,@proctors)) &&
($checkedinslot eq $slot_name)) {	($checkedinslot eq $slot_name)) {
return (NEEDS_CHECKIN,undef,$slot_name);	return (NEEDS_CHECKIN,$end,$slot_name);
}	}
}	}
return (RESERVED,$end,$slot_name);	return (RESERVED,$end,$slot_name);
Line 5423 sub check_for_slot {	Line 5828 sub check_for_slot {
$num_usable_slots ++;	$num_usable_slots ++;
}	}
}	}
my ($is_correct,$got_grade);	my ($is_correct,$wait_for_grade);
if ($self->is_task()) {	if ($self->is_task()) {
my $taskstatus = $self->taskstatus();	my $taskstatus = $self->taskstatus();
$is_correct = (($taskstatus eq 'pass') \|\|	$is_correct = (($taskstatus eq 'pass') \|\|
($self->solved() =~ /^correct_/));	($self->solved() =~ /^correct_/));
$got_grade = ($taskstatus =~ /^(?:pass\|fail)$/);	unless ($taskstatus =~ /^(?:pass\|fail)$/) {
	$wait_for_grade = 1;
	}
} else {	} else {
$got_grade = 1;	unless ($self->completable()) {
$is_correct = ($self->solved() =~ /^correct_/);	$wait_for_grade = 1;
	}
	unless (($self->problemstatus($part) eq 'no') \|\|
	($self->problemstatus($part) eq 'no_feedback_ever')) {
	$is_correct = ($self->solved($part) =~ /^correct_/);
	$wait_for_grade = 0;
	}
}	}
($checkedin,$checkedinslot) = $self->checkedin();	($checkedin,$checkedinslot) = $self->checkedin();
if ($checkedin) {	if ($checkedin) {
if (!$got_grade) {	if (ref($slots{$checkedinslot}) eq 'HASH') {
	$consumed_uniq{$checkedinslot} = $slots{$checkedinslot}{'uniqueperiod'};
	}
	if ($wait_for_grade) {
return (WAITING_FOR_GRADE);	return (WAITING_FOR_GRADE);
} elsif ($is_correct) {	} elsif ($is_correct) {
return (CORRECT);	return (CORRECT);
Line 5450 sub check_for_slot {	Line 5866 sub check_for_slot {
if (ref($reservable) eq 'HASH') {	if (ref($reservable) eq 'HASH') {
if ((ref($reservable->{'now_order'}) eq 'ARRAY') && (ref($reservable->{'now'}) eq 'HASH')) {	if ((ref($reservable->{'now_order'}) eq 'ARRAY') && (ref($reservable->{'now'}) eq 'HASH')) {
foreach my $slot (reverse (@{$reservable->{'now_order'}})) {	foreach my $slot (reverse (@{$reservable->{'now_order'}})) {
	my $canuse;
if (($reservable->{'now'}{$slot}{'symb'} eq '') \|\|	if (($reservable->{'now'}{$slot}{'symb'} eq '') \|\|
($reservable->{'now'}{$slot}{'symb'} eq $symb)) {	($reservable->{'now'}{$slot}{'symb'} eq $symb)) {
	$canuse = 1;
	}
	if ($canuse) {
	if ($checkedin) {
	if (ref($consumed_uniq{$checkedinslot}) eq 'ARRAY') {
	my ($uniqstart,$uniqend)=@{$consumed_uniq{$checkedinslot}};
	if ($reservable->{'now'}{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
	my ($new_uniq_start,$new_uniq_end) = ($1,$2);
	next if (!
	($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) \|\|
	($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
	}
	}
	}
return(RESERVABLE,$reservable->{'now'}{$slot}{'endreserve'});	return(RESERVABLE,$reservable->{'now'}{$slot}{'endreserve'});
}	}
}	}
}	}
if ((ref($reservable->{'future_order'}) eq 'ARRAY') && (ref($reservable->{'future'}) eq 'HASH')) {	if ((ref($reservable->{'future_order'}) eq 'ARRAY') && (ref($reservable->{'future'}) eq 'HASH')) {
foreach my $slot (@{$reservable->{'future_order'}}) {	foreach my $slot (@{$reservable->{'future_order'}}) {
	my $canuse;
if (($reservable->{'future'}{$slot}{'symb'} eq '') \|\|	if (($reservable->{'future'}{$slot}{'symb'} eq '') \|\|
($reservable->{'future'}{$slot}{'symb'} eq $symb)) {	($reservable->{'future'}{$slot}{'symb'} eq $symb)) {
	$canuse = 1;
	}
	if ($canuse) {
	if ($checkedin) {
	if (ref($consumed_uniq{$checkedinslot}) eq 'ARRAY') {
	my ($uniqstart,$uniqend)=@{$consumed_uniq{$checkedinslot}};
	if ($reservable->{'future'}{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
	my ($new_uniq_start,$new_uniq_end) = ($1,$2);
	next if (!
	($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) \|\|
	($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
	}
	}
	}
return(RESERVABLE_LATER,$reservable->{'future'}{$slot}{'startreserve'});	return(RESERVABLE_LATER,$reservable->{'future'}{$slot}{'startreserve'});
}	}
}	}
Line 5513 my %compositeToSimple =	Line 5959 my %compositeToSimple =
EXCUSED() => CORRECT,	EXCUSED() => CORRECT,
PAST_DUE_NO_ANSWER() => INCORRECT,	PAST_DUE_NO_ANSWER() => INCORRECT,
PAST_DUE_ANSWER_LATER() => INCORRECT,	PAST_DUE_ANSWER_LATER() => INCORRECT,
	PAST_DUE_ATMPT_ANS() => ATTEMPTED,
	PAST_DUE_ATMPT_NOANS() => ATTEMPTED,
	PAST_DUE_NO_ATMT_ANS() => CLOSED,
	PAST_DUE_NO_ATMT_NOANS() => CLOSED,
ANSWER_OPEN() => INCORRECT,	ANSWER_OPEN() => INCORRECT,
OPEN_LATER() => CLOSED,	OPEN_LATER() => CLOSED,
TRIES_LEFT() => OPEN,	TRIES_LEFT() => OPEN,
Line 5610 sub completable {	Line 6060 sub completable {

=pod	=pod

	B<Answerable>

	The answerable method differs from the completable method in its handling of problem parts
	for which feedback on correctness is suppressed, but the student still has tries left, and
	the problem part is not past due, (i.e., the student could submit a different answer if
	he/she so chose). For that case completable will return 0, whereas answerable will return 1.

	=cut

	sub answerable {
	my $self = shift;
	if (!$self->is_problem()) { return 0; }
	my $partCount = $self->countParts();
	foreach my $part (@{$self->parts()}) {
	if ($part eq '0' && $partCount != 1) { next; }
	my $status = $self->status($part);
	if ($self->getCompletionStatus($part) == ATTEMPTED() \|\|
	$self->getCompletionStatus($part) == CREDIT_ATTEMPTED() \|\|
	$status == ANSWER_SUBMITTED() ) {
	if ($self->tries($part) < $self->maxtries($part) \|\| !$self->maxtries($part)) {
	return 1;
	}
	}
	if ($status == OPEN() \|\| $status == TRIES_LEFT() \|\| $status == NETWORK_FAILURE()) {
	return 1;
	}
	}
	# None of the parts were answerable, so neither is this problem.
	return 0;
	}

	=pod

=head2 Resource/Nav Map Navigation	=head2 Resource/Nav Map Navigation

=over 4	=over 4
Line 5657 sub getPrevious {	Line 6140 sub getPrevious {

sub browsePriv {	sub browsePriv {
my $self = shift;	my $self = shift;
	my $noblockcheck = shift;
if (defined($self->{BROWSE_PRIV})) {	if (defined($self->{BROWSE_PRIV})) {
return $self->{BROWSE_PRIV};	return $self->{BROWSE_PRIV};
}	}

$self->{BROWSE_PRIV} = &Apache::lonnet::allowed('bre',$self->src(),	$self->{BROWSE_PRIV} = &Apache::lonnet::allowed('bre',$self->src(),
$self->symb());	$self->{SYMB},undef,
	undef,$noblockcheck);
}	}

=pod	=pod

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.504
changed lines
	Added in v.1.509.2.17