loncom/interface/lonnavmaps.pm - diff

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Diff for /loncom/interface/lonnavmaps.pm between versions 1.475 and 1.509.2.14.2.3

version 1.475, 2011/12/21 20:21:49	version 1.509.2.14.2.3, 2022/07/08 16:10:35
Line 164 If true, the resource's folder will not	Line 164 If true, the resource's folder will not
it. Default is false. True implies printCloseAll is false, since you	it. Default is false. True implies printCloseAll is false, since you
can't close or open folders when this is on anyhow.	can't close or open folders when this is on anyhow.

	=item * B<map_no_edit_link>:

	If true, the title of the folder or page will not be followed by an
	icon/link to direct editing of a folder or composite page, originally
	added via the Course Editor.

=back	=back

=item * B<Apache::lonnavmaps::communication_status>:	=item * B<Apache::lonnavmaps::communication_status>:
Line 225 automatically.	Line 231 automatically.

=over 4	=over 4

=item * B<iterator: default: constructs one from %env	=item * B<iterator>: default: constructs one from %env

A reference to a fresh ::iterator to use from the navmaps. The	A reference to a fresh ::iterator to use from the navmaps. The
rendering will reflect the options passed to the iterator, so you can	rendering will reflect the options passed to the iterator, so you can
Line 464 returns 4	Line 470 returns 4

=item add_linkitem()	=item add_linkitem()

=item show_linkitems()	=item show_linkitems_toolbar()

=back	=back

Line 480 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();
	use HTML::Entities;

# For debugging	# For debugging

# use Data::Dumper;	#use Data::Dumper;


# symbolic constants	# symbolic constants
Line 570 sub getLinkForResource {	Line 577 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 612 sub getDescription {	Line 623 sub getDescription {
return &mt("Having technical difficulties; please check status later");	return &mt("Having technical difficulties; please check status later");
}	}
if ($status == $res->NOTHING_SET) {	if ($status == $res->NOTHING_SET) {
return &Apache::lonhtmlcommon::direct_parm_link(&mt("Not currently assigned.",$res->symb(),'opendate'),$part);	return &Apache::lonhtmlcommon::direct_parm_link(&mt('Not currently assigned'),$res->symb(),'opendate',$part);
}	}
if ($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) {
Line 691 sub getDescription {	Line 713 sub getDescription {
my $maxtries = $res->maxtries($part);	my $maxtries = $res->maxtries($part);
my $triesString = "";	my $triesString = "";
if ($tries && $maxtries) {	if ($tries && $maxtries) {
$triesString = '<font size="-1"><i>('.&mt('[_1] of [quant,_2,try,tries] used',$tries,$maxtries).')</i></font>';	$triesString = '<span class="LC_fontsize_medium"><i>('.&mt('[_1] of [quant,_2,try,tries] used',$tries,$maxtries).')</i></span>';
if ($maxtries > 1 && $maxtries - $tries == 1) {	if ($maxtries > 1 && $maxtries - $tries == 1) {
$triesString = "<b>$triesString</b>";	$triesString = "<b>$triesString</b>";
}	}
Line 896 sub part_status_summary { return 4; }	Line 918 sub part_status_summary { return 4; }
sub render_resource {	sub render_resource {
my ($resource, $part, $params) = @_;	my ($resource, $part, $params) = @_;

	my $editmapLink;
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 919 sub render_resource {	Line 945 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=\"$link\">";	my ($nomodal,$linkopen,$linkclose);
my $linkclose = "</a>";	unless ($resource->is_map() \|\| $params->{'resource_nolink'}) {
	$linkopen = "<img src='$whitespace' alt='' />";
	$linkclose = "</a>";
	if (($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\">";
	}
	}

# Default icon: unknown page	# Default icon: unknown page
my $icon = "<img class=\"LC_contentImage\" src='$location/unknown.gif' alt='' />";	my $icon = "<img class=\"LC_contentImage\" src='$location/unknown.gif' alt='' />";
Line 968 sub render_resource {	Line 1017 sub render_resource {
'&jump=' .	'&jump=' .
&escape($resource->symb()) .	&escape($resource->symb()) .
"&folderManip=1\">";	"&folderManip=1\">";
	$linkclose = '</a>';
} else {	} else {
# 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 = "";	$linkclose = '</a>';
	} else {
	$linkopen = "";
	$linkclose = "";
	}
	}
	if (((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) \|\|
	(&Apache::lonnet::allowed('cev',$env{'request.course.id'}))) &&
	($resource->symb=~/\_\_\_[^\_]+\_\_\_uploaded/)) {
	if (!$params->{'map_no_edit_link'}) {
	my $icon = &Apache::loncommon::lonhttpdurl('/res/adm/pages').'/editmap.png';
	$editmapLink=' '.
	'<a href="/adm/coursedocs?command=directnav&symb='.&escape($resource->symb()).'">'.
	'<img src="'.$icon.'" alt="'.&mt('Edit Content').'" title="'.&mt('Edit Content').'" />'.
	'</a>';
	}
	}
	if ($params->{'mapHidden'} \|\| $resource->randomout()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';
	} elsif ($params->{'mapUnlisted'}) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('unlisted').')</span> ';
	} elsif ($params->{'mapHiddenDeepLink'} \|\| $resource->deeplinkout()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('not shown').')</span> ';
	}
	} else {
	if ($resource->randomout()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';
	} elsif ($resource->deeplinkout()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('not shown').')</span> ';
	} else {
	my $deeplink = $resource->deeplink($params->{caller});
	if ((($deeplink eq 'absent') \|\| ($deeplink eq 'grades')) &&
	&advancedUser()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('unlisted').')</span> ';
	} elsif (($deeplink) && ($deeplink) ne 'full') {
	if (&advancedUser()) {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('deep-link access').
	')</span> ';
	} else {
	$nonLinkedText .= ' <span class="LC_warning">('.&mt('access via external site').
	')</span> ';
	}
	}
}	}
}

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> ';	$nonLinkedText .= ' <span class="LC_info">('.&mt('conditionally hidden').')</span> ';
}	}
if (($resource->is_practice()) && ($resource->is_raw_problem())) {	if (($resource->is_practice()) && ($resource->is_raw_problem())) {
$nonLinkedText .=' <font color="green"><b>'.&mt('not graded').'</b></font>';	$nonLinkedText .=' <span class="LC_info"><b>'.&mt('not graded').'</b></span>';
}	}

# We're done preparing and finally ready to start the rendering	# We're done preparing and finally ready to start the rendering
Line 1010 sub render_resource {	Line 1097 sub render_resource {
# Is this the current resource?	# Is this the current resource?
if (!$params->{'displayedHereMarker'} &&	if (!$params->{'displayedHereMarker'} &&
$resource->symb() eq $params->{'here'} ) {	$resource->symb() eq $params->{'here'} ) {
$curMarkerBegin = '<span class="LC_current_nav_location">';	unless ($resource->is_map()) {
$curMarkerEnd = '</span>';	$curMarkerBegin = '<span class="LC_current_nav_location">';
	$curMarkerEnd = '</span>';
	}
$params->{'displayedHereMarker'} = 1;	$params->{'displayedHereMarker'} = 1;
}	}

Line 1028 sub render_resource {	Line 1117 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$nonLinkedText</td>";	$linkclose = '</a>';
} else {	if ($params->{'modalLink'}) {
$result .= "$curMarkerBegin$linkopen$title$partLabel</a>$curMarkerEnd$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 1044 sub render_communication_status {	Line 1142 sub render_communication_status {
my $linkopen = "<a href=\"$link\">";	my $linkopen = "<a href=\"$link\">";
my $linkclose = "</a>";	my $linkclose = "</a>";
my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");	my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");

if ($resource->hasDiscussion()) {	if ($resource->hasDiscussion()) {
$discussionHTML = $linkopen .	$discussionHTML = $linkopen .
'<img alt="'.&mt('New Discussion').'" src="'.$location.'/chat.gif" title="'.&mt('New Discussion').'"/>' .	'<img alt="'.&mt('New Discussion').'" src="'.$location.'/chat.gif" title="'.&mt('New Discussion').'"/>' .
Line 1116 sub render_long_status {	Line 1215 sub render_long_status {
$params->{'multipart'} && $part eq "0";	$params->{'multipart'} && $part eq "0";

my $color;	my $color;
	my $info = '';
if ($resource->is_problem() \|\| $resource->is_practice()) {	if ($resource->is_problem() \|\| $resource->is_practice()) {
$color = $colormap{$resource->status};	$color = $colormap{$resource->status};

if (dueInLessThan24Hours($resource, $part) \|\|	if (dueInLessThan24Hours($resource, $part)) {
lastTry($resource, $part)) {
$color = $hurryUpColor;	$color = $hurryUpColor;
}	$info = ' title="'.&mt('Due in less than 24 hours!').'"';
	} elsif (lastTry($resource, $part)) {
	unless (($resource->problemstatus($part) eq 'no') \|\|
	($resource->problemstatus($part) eq 'no_feedback_ever')) {
	$color = $hurryUpColor;
	$info = ' title="'.&mt('One try remaining!').'"';
	}
	}
}	}

if ($resource->kind() eq "res" &&	if ($resource->kind() eq "res" &&
$resource->is_raw_problem() &&	$resource->is_raw_problem() &&
!$firstDisplayed) {	!$firstDisplayed) {
if ($color) {$result .= "<font color=\"$color\"><b>"; }	if ($color) {$result .= '<span style="color:'.$color.'"'.$info.'><b>'; }
$result .= getDescription($resource, $part);	$result .= getDescription($resource, $part);
if ($color) {$result .= "</b></font>"; }	if ($color) {$result .= "</b></span>"; }
}
if ($resource->is_map()) {
if (&Apache::lonnet::allowed('mdc')) {
if ($resource->symb=~/\_\_\_[^\_]+\_\_\_uploaded/) {
$result.=" <a href='/adm/coursedocs?command=direct&symb=".&escape($resource->symb())."'>".
"<span class='LC_setting'>".&mt("Edit Content").'</span></a> ';
}
}
}	}
if ($resource->is_map() && &advancedUser() && $resource->randompick()) {	if ($resource->is_map() && &advancedUser() && $resource->randompick()) {
$result .= &mt('(randomly select [_1])', $resource->randompick());	$result .= &mt('(randomly select [_1])', $resource->randompick());
Line 1220 sub render_parts_summary_status {	Line 1318 sub render_parts_summary_status {
}	}
$return.= $td . $totalParts . ' parts: ';	$return.= $td . $totalParts . ' parts: ';
foreach my $status (@statuses) {	foreach my $status (@statuses) {
if ($overallstatus{$status}) {	if ($overallstatus{$status}) {
$return.="<font color='" . $statusColors{$status} .	$return.='<span style="color:' . $statusColors{$status}
"'>" . $overallstatus{$status} . ' '	. '">' . $overallstatus{$status} . ' '
. $statusStrings{$status} . "</font>";	. $statusStrings{$status} . '</span>';
}	}
}	}
$return.= $endtd;	$return.= $endtd;
return $return;	return $return;
Line 1293 sub render {	Line 1391 sub render {
# an infinite loop	# an infinite loop
my $oldFilterFunc = $filterFunc;	my $oldFilterFunc = $filterFunc;
$filterFunc = sub { my $res = shift; return !$res->randomout() &&	$filterFunc = sub { my $res = shift; return !$res->randomout() &&
	($res->deeplink($args->{'caller'}) ne 'absent') &&
	($res->deeplink($args->{'caller'}) ne 'grades') &&
	!$res->deeplinkout() &&
&$oldFilterFunc($res);};	&$oldFilterFunc($res);};
}	}

my $condition = 0;	my $condition = 0;
if ($env{'form.condition'}) {	if ($env{'form.condition'}) {
$condition = 1;	$condition = 1;
	} elsif (($env{'request.deeplink.login'}) && ($env{'request.course.id'}) && (!$userCanSeeHidden)) {
	if (!defined($navmap)) {
	$navmap = Apache::lonnavmaps::navmap->new();
	}
	if (defined($navmap)) {
	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	my $symb = &Apache::loncommon::symb_from_tinyurl($env{'request.deeplink.login'},$cnum,$cdom);
	if ($symb) {
	my $deeplink;
	my $res = $navmap->getBySymb($symb);
	if ($res->is_map()) {
	my $mapname = &Apache::lonnet::declutter($res->src());
	$mapname = &Apache::lonnet::deversion($mapname);
	$deeplink = $navmap->get_mapparam(undef,$mapname,"0.deeplink");
	} else {
	$deeplink = $res->deeplink();
	}
	if ($deeplink ne '') {
	if ((split(/,/,$deeplink))[1] eq 'hide') {
	if ($res->is_map()) {
	map { $filterHash->{$_} = 1 if $_ } split(/,/,$res->map_hierarchy());
	} else {
	my $mapurl = (&Apache::lonnet::decode_symb($symb))[0];
	my $map = $navmap->getResourceByUrl($mapurl);
	map { $filterHash->{$_} = 1 if $_ } split(/,/,$map->map_hierarchy());
	}
	}
	}
	}
	}
}	}

if (!$env{'form.folderManip'} && !defined($args->{'iterator'})) {	if (!$env{'form.folderManip'} && !defined($args->{'iterator'})) {
Line 1322 sub render {	Line 1454 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',$env{'request.course.fn'}.'_symb.db',
&GDBM_READER(),0640)) {	&GDBM_READER(),0640)) {
Line 1385 sub render {	Line 1518 sub render {
if ($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'});
}	}
}	}


# (re-)Locate the jump point, if any	# (re-)Locate the jump point, if any
# Note this does not take filtering or hidden into account... need	# Note this does not take filtering or hidden into account... need
# to be fixed?	# to be fixed?
Line 1462 sub render {	Line 1597 sub render {
$link .= '&register='.$env{'form.register'};	$link .= '&register='.$env{'form.register'};
}	}
if ($args->{'caller'} eq 'navmapsdisplay') {	if ($args->{'caller'} eq 'navmapsdisplay') {
&add_linkitem($args->{'linkitems'},'changefolder',	unless ($args->{'notools'}) {
"location.href='$link'",$text);	&add_linkitem($args->{'linkitems'},'changefolder',
	"location.href='$link'",$text);
	}
} else {	} else {
$result.= '<a href="'.$link.'">'.&mt($text).'</a>';	$result.= '<a href="'.$link.'">'.&mt($text).'</a>';
}	}
Line 1471 sub render {	Line 1608 sub render {
}	}

# Check for any unread discussions in all resources.	# Check for any unread discussions in all resources.
if ($args->{'caller'} eq 'navmapsdisplay') {	if (($args->{'caller'} eq 'navmapsdisplay') && (!$args->{'notools'})) {
&add_linkitem($args->{'linkitems'},'clearbubbles',	&add_linkitem($args->{'linkitems'},'clearbubbles',
'document.clearbubbles.submit()',	'document.clearbubbles.submit()',
'Mark all posts read');	'Mark all posts read');
my $time=time;	my $time=time;
	my $querystr = &HTML::Entities::encode($ENV{'QUERY_STRING'},'<>&"');
$result .= (<<END);	$result .= (<<END);
<form name="clearbubbles" method="post" action="/adm/feedback">	<form name="clearbubbles" method="post" action="/adm/feedback">
<input type="hidden" name="navurl" value="$ENV{'QUERY_STRING'}" />	<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'}) {	if ($env{'form.register'}) {
Line 1503 END	Line 1641 END
}	}
}	}
$result.='</form>';	$result.='</form>';
if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {	}
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};	if (($args->{'caller'} eq 'navmapsdisplay') &&
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};	((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) \|\|
if ($env{'course.'.$env{'request.course.id'}.'.url'} eq	(&Apache::lonnet::allowed('cev',$env{'request.course.id'})))) {
"uploaded/$cdom/$cnum/default.sequence") {	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
&add_linkitem($args->{'linkitems'},'edittoplevel',	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
"javascript:gocmd('/adm/coursedocs','direct');",	if ($env{'course.'.$env{'request.course.id'}.'.url'} eq
'Content Editor');	"uploaded/$cdom/$cnum/default.sequence") {
}	&add_linkitem($args->{'linkitems'},'edittoplevel',
	"javascript:gocmd('/adm/coursedocs','editdocs');",
	'Content Editor');
}	}
}	}

if ($args->{'caller'} eq 'navmapsdisplay') {	if ($args->{'caller'} eq 'navmapsdisplay') {
$result .= '<table><tr><td>'.	$result .= &show_linkitems_toolbar($args,$condition);
&Apache::loncommon::help_open_menu('Navigation Screen','Navigation_Screen',undef,'RAT').'</td>';
$result .= '<td> </td>';
$result.='<td class="LC_middle">'.&mt('Tools:').'</td>';
$result.=&show_linkitems_toolbar($args->{'linkitems'});
if ($args->{'sort_html'}) {
$result.='<td> </td><td> </td><td> </td>'.
'<td align="right">'.$args->{'sort_html'}.'</td></tr>';
}
$result .= '</table>';
} elsif ($args->{'sort_html'}) {	} elsif ($args->{'sort_html'}) {
$result.=$args->{'sort_html'};	$result.=$args->{'sort_html'};
}	}
Line 1559 END	Line 1690 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 $displayedJumpMarker = 0;
Line 1651 END	Line 1787 END
undef($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'}) {
$curRes = shift(@resources);	$curRes = shift(@resources);
} else {	} else {
$curRes = $it->next($closeAllPages);	$curRes = $it->next($closeAllPages);

}	}
if (!$curRes) { last; }	if (!$curRes) { last; }

Line 1687 END	Line 1844 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}) {	$args->{'mapUnlisted'} = 0;
next;	$args->{'mapHiddenDeepLink'} = 0;
	if (($curRes->is_map()) && (!$curRes->{DATA}->{HAS_VISIBLE_CHILDREN})) {
	if ($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) {
	$args->{'mapHidden'} = 1;
	} else {
	next;
	}
	} elsif ($curRes->deeplinkout) {
	if ($userCanSeeHidden) {
	$args->{'mapHiddenDeepLink'} = 1;
	} else {
	next;
	}
	} else {
	my $deeplink = $navmap->get_mapparam(undef,$mapname,"0.deeplink");
	my ($state,$others,$listed) = split(/,/,$deeplink);
	if (($listed eq 'absent') \|\| ($listed eq 'grades')) {
	if ($userCanSeeHidden) {
	$args->{'mapUnlisted'} = 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 1750 END	Line 1937 END
$args->{'condensed'} = 1;	$args->{'condensed'} = 1;
}	}
}	}
}	}
	# If deep-link parameter is set (and is not set to full) suppress link
	# unless privileged user, tinyurl used for login resolved to a map, and
	# the resource is within the map.
	if ((!$curRes->deeplink($args->{'caller'})) \|\|
	($curRes->deeplink($args->{'caller'}) eq 'full') \|\| &advancedUser()) {
	$args->{'resource_nolink'} = 0;
	} else {
	$args->{'resource_nolink'} = 1;
	}

# If the multipart problem was condensed, "forget" it was multipart	# If the multipart problem was condensed, "forget" it was multipart
if (scalar(@parts) == 1) {	if (scalar(@parts) == 1) {
Line 1773 END	Line 1969 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 1805 END	Line 2025 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 1829 END	Line 2049 END
}	}
}	}
}	}

	$result.=&Apache::loncommon::end_data_table();

# Print out the part that jumps to #curloc if it exists	# Print out the part that jumps to #curloc if it exists
# delay needed because the browser is processing the jump before	# delay needed because the browser is processing the jump before
Line 1845 if (location.href.indexOf('#curloc')==-1	Line 2067 if (location.href.indexOf('#curloc')==-1
");	");
}	}

$result.=&Apache::loncommon::end_data_table();

if ($r) {	if ($r) {
$r->print($result);	$r->print($result);
$result = "";	$result = "";
Line 1863 sub add_linkitem {	Line 2083 sub add_linkitem {
}	}

sub show_linkitems_toolbar {	sub show_linkitems_toolbar {
my ($linkitems,$condition)=@_;	my ($args,$condition) = @_;
my @linkorder = ('firsthomework','everything','uncompleted',	my $result;
'changefolder','clearbubbles','edittoplevel');	if (ref($args) eq 'HASH') {
my $result .='<td align="left">'."\n".	if (ref($args->{'linkitems'}) eq 'HASH') {
'<span class="LC_nobreak">'."\n".	my $numlinks = scalar(keys(%{$args->{'linkitems'}}));
'<ul id="LC_toolbar">';	if ($numlinks > 1) {
foreach my $link (@linkorder) {	$result = '<td>'.
my $link_id = 'LC_content_toolbar_'.$link;	&Apache::loncommon::help_open_menu('Navigation Screen','Navigation_Screen',
if (defined($linkitems->{$link})) {	undef,'RAT').
if ($linkitems->{$link}{'text'} ne '') {	'</td>'.
$linkitems->{$link}{'cmd'}=~s/"/'/g;	'<td> </td>'.
if ($linkitems->{$link}{'cmd'}) {	'<td class="LC_middle">'.&mt('Tools:').'</td>';
if ($link eq 'changefolder') {	}
if ($condition) {	$result .= '<td align="left">'."\n".
$link_id='LC_content_toolbar_changefolder_toggled';	'<ul id="LC_toolbar">';
} else {	my @linkorder = ('firsthomework','everything','uncompleted',
$link_id='LC_content_toolbar_changefolder';	'changefolder','clearbubbles','edittoplevel');
	foreach my $link (@linkorder) {
	if (ref($args->{'linkitems'}{$link}) eq 'HASH') {
	if ($args->{'linkitems'}{$link}{'text'} ne '') {
	$args->{'linkitems'}{$link}{'cmd'}=~s/"/'/g;
	if ($args->{'linkitems'}{$link}{'cmd'}) {
	my $link_id = 'LC_content_toolbar_'.$link;
	if ($link eq 'changefolder') {
	if ($condition) {
	$link_id='LC_content_toolbar_changefolder_toggled';
	} else {
	$link_id='LC_content_toolbar_changefolder';
	}
	}
	$result .= '<li><a href="#" '.
	'onclick="'.$args->{'linkitems'}{$link}{'cmd'}.'" '.
	'id="'.$link_id.'" '.
	'class="LC_toolbarItem" '.
	'title="'.$args->{'linkitems'}{$link}{'text'}.'">'.
	'</a></li>'."\n";
}	}
}	}
$result .= '<li><a href="#" '.
'onclick="'.$linkitems->{$link}{'cmd'}.'" '.
'id="'.$link_id.'" '.
'class="LC_toolbarItem" '.
'title="'.$linkitems->{$link}{'text'}.'">'.
'</a></li>'."\n";
}	}
}	}
	$result .= '</ul>'.
	'</td>';
	if (($numlinks==1) && (exists($args->{'linkitems'}{'edittoplevel'}))) {
	$result .= '<td><a href="'.$args->{'linkitems'}{'edittoplevel'}{'cmd'}.'">'.
	&mt('Content Editor').'</a></td>';
	}
}	}
	if ($args->{'sort_html'}) {
	$result .= '<td> </td><td> </td><td> </td>'.
	'<td align="right">'.$args->{'sort_html'}.'</td>';
	}
	}
	if ($result) {
	$result = "<table><tr>$result</tr></table>";
}	}
$result .= '</ul>'.
'</span></td>'."\n";
return $result;	return $result;
}	}


1;	1;


Line 1984 sub new {	Line 2227 sub new {
my $proto = shift;	my $proto = shift;
my $class = ref($proto) \|\| $proto;	my $class = ref($proto) \|\| $proto;
my $self = {};	my $self = {};
bless($self); # So we can call change_user if neceesary	bless($self); # So we can call change_user if necessary

$self->{USERNAME} = shift \|\| $env{'user.name'};	$self->{USERNAME} = shift \|\| $env{'user.name'};
$self->{DOMAIN} = shift \|\| $env{'user.domain'};	$self->{DOMAIN} = shift \|\| $env{'user.domain'};
	$self->{CODE} = shift;
	$self->{NOHIDE} = shift;



Line 2001 sub new {	Line 2246 sub new {

# We can only tie the nav hash as done below if the username/domain	# We can only tie the nav hash as done below if the username/domain
# match the env one. Otherwise change_user does everything we need...since we can't	# match the env one. Otherwise change_user does everything we need...since we can't
# assume there are course hashes for the specific requested user@domamin:	# assume there are course hashes for the specific requested user:domain
	# Note: change_user is also called if we need the nav hash when printing CODEd
	# assignments or printing an exam, in which the enclosing folder for the items in
	# the exam has hidden set.
#	#

if ( ($self->{USERNAME} eq $env{'user.name'}) && ($self->{DOMAIN} eq $env{'user.domain'})) {	if (($self->{USERNAME} eq $env{'user.name'}) && ($self->{DOMAIN} eq $env{'user.domain'}) &&
	!$self->{CODE} && !$self->{NOHIDE}) {

# tie the nav hash	# tie the nav hash

Line 2027 sub new {	Line 2276 sub new {
$self->{PARM_HASH} = \%parmhash;	$self->{PARM_HASH} = \%parmhash;
$self->{PARM_CACHE} = {};	$self->{PARM_CACHE} = {};
} else {	} else {
$self->change_user($self->{USERNAME}, $self->{DOMAIN});	$self->change_user($self->{USERNAME}, $self->{DOMAIN}, $self->{CODE}, $self->{NOHIDE});
}	}

my $d = Data::Dumper->new([$self]);

return $self;	return $self;
}	}

Line 2042 sub new {	Line 2289 sub new {
# Parameters:	# Parameters:
# user - New user.	# user - New user.
# domain- Domain the user belongs to.	# domain- Domain the user belongs to.
	# code - Anonymous CODE in use.
# Implicit inputs:	# Implicit inputs:
#	#
sub change_user {	sub change_user {
my $self = shift;	my $self = shift;
$self->{USERNAME} = shift;	$self->{USERNAME} = shift;
$self->{DOMAIN} = shift;	$self->{DOMAIN} = shift;
	$self->{CODE} = shift;
	$self->{NOHIDE} = shift;

# If the hashes are already tied make sure to break that bond:	# If the hashes are already tied make sure to break that bond:

Line 2063 sub change_user {	Line 2313 sub change_user {
my ($cdom, $cnum) = split(/\_/, $env{'request.course.id'});	my ($cdom, $cnum) = split(/\_/, $env{'request.course.id'});

my %big_hash;	my %big_hash;
&Apache::lonmap::loadmap($cnum, $cdom, $self->{USERNAME}, $self->{DOMAIN}, \%big_hash);	&Apache::lonmap::loadmap($cnum, $cdom, $self->{USERNAME}, $self->{DOMAIN}, $self->{CODE}, $self->{NOHIDE}, \%big_hash);
$self->{NAV_HASH} = \%big_hash;	$self->{NAV_HASH} = \%big_hash;


Line 2074 sub change_user {	Line 2324 sub change_user {
$self->{PARM_CACHE} = {};	$self->{PARM_CACHE} = {};

my %parm_hash = {};	my %parm_hash = {};
foreach my $key (keys %big_hash) {	foreach my $key (keys(%big_hash)) {
if ($key =~ /^param\./) {	if ($key =~ /^param\./) {
my $param_key = $key;	my $param_key = $key;
$param_key =~ s/^param\.//;	$param_key =~ s/^param\.//;
Line 2083 sub change_user {	Line 2333 sub change_user {
}	}

$self->{PARM_HASH} = \%parm_hash;	$self->{PARM_HASH} = \%parm_hash;



	}
}

sub generate_course_user_opt {	sub generate_course_user_opt {
my $self = shift;	my $self = shift;
Line 2129 sub generate_course_user_opt {	Line 2376 sub generate_course_user_opt {
return;	return;
}	}



sub generate_email_discuss_status {	sub generate_email_discuss_status {
my $self = shift;	my $self = shift;
my $symb = shift;	my $symb = shift;
Line 2148 sub generate_email_discuss_status {	Line 2397 sub generate_email_discuss_status {
my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',	my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',
$self->{DOMAIN},$self->{USERNAME},'lastread');	$self->{DOMAIN},$self->{USERNAME},'lastread');
my %lastreadtime = ();	my %lastreadtime = ();
foreach my $key (keys %lastread) {	foreach my $key (keys(%lastread)) {
my $shortkey = $key;	my $shortkey = $key;
$shortkey =~ s/_lastread$//;	$shortkey =~ s/_lastread$//;
$lastreadtime{$shortkey} = $lastread{$key};	$lastreadtime{$shortkey} = $lastread{$key};
Line 2162 sub generate_email_discuss_status {	Line 2411 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 2263 sub getIterator {	Line 2512 sub getIterator {
my $self = shift;	my $self = shift;
my $iterator = Apache::lonnavmaps::iterator->new($self, shift, shift,	my $iterator = Apache::lonnavmaps::iterator->new($self, shift, shift,
shift, undef, shift,	shift, undef, shift,
shift, shift);	shift, shift, shift);
return $iterator;	return $iterator;
}	}

Line 2542 sub parmval {	Line 2791 sub parmval {
return $result->[0];	return $result->[0];
}	}


sub parmval_real {	sub parmval_real {
my $self = shift;	my $self = shift;
my ($what,$symb,$recurse) = @_;	my ($what,$symb,$recurse) = @_;


# Make sure the {USER_OPT} and {COURSE_OPT} hashes are populated	# Make sure the {USER_OPT} and {COURSE_OPT} hashes are populated
$self->generate_course_user_opt();	$self->generate_course_user_opt();

Line 2574 sub parmval_real {	Line 2825 sub parmval_real {
my $mapparm=$mapname.'___(all).'.$what;	my $mapparm=$mapname.'___(all).'.$what;
my $usercourseprefix=$cid;	my $usercourseprefix=$cid;



my $grplevel=$usercourseprefix.'.['.$cgroup.'].'.$what;	my $grplevel=$usercourseprefix.'.['.$cgroup.'].'.$what;
my $grplevelr=$usercourseprefix.'.['.$cgroup.'].'.$symbparm;	my $grplevelr=$usercourseprefix.'.['.$cgroup.'].'.$symbparm;
my $grplevelm=$usercourseprefix.'.['.$cgroup.'].'.$mapparm;	my $grplevelm=$usercourseprefix.'.['.$cgroup.'].'.$mapparm;


my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;	my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;	my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;	my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;


my $courselevel= $usercourseprefix.'.'.$what;	my $courselevel= $usercourseprefix.'.'.$what;
my $courselevelr=$usercourseprefix.'.'.$symbparm;	my $courselevelr=$usercourseprefix.'.'.$symbparm;
my $courselevelm=$usercourseprefix.'.'.$mapparm;	my $courselevelm=$usercourseprefix.'.'.$mapparm;


my $useropt = $self->{USER_OPT};	my $useropt = $self->{USER_OPT};
my $courseopt = $self->{COURSE_OPT};	my $courseopt = $self->{COURSE_OPT};
my $parmhash = $self->{PARM_HASH};	my $parmhash = $self->{PARM_HASH};
Line 2653 sub parmval_real {	Line 2909 sub parmval_real {
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);
	push(@revmapinfo,{'href' => $env{'request.use_absolute'}.$map->link().'?navmap=1','text' => $map->title(),'no_mt' => 1,});
	$totallength += length($map->title());
	}
	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 $showntitle = &truncate_crumb_text($map->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
	# encloses a resource.
	#
	sub map_printdates {
	my ($self, $res, $part) = @_;





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


	return ($opendate, $closedate);
	}

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

	# Ensure the course option hash is populated:

	$self->generate_course_user_opt();

	# Get the course id and section if there is one.

	my $cid=$env{'request.course.id'};
	my $csec=$env{'request.course.sec'};
	my $cgroup='';
	my @cgrps=split(/:/,$env{'request.course.groups'});
	if (@cgrps > 0) {
	@cgrps = sort(@cgrps);
	$cgroup = $cgrps[0];
	}
	my $uname=$self->{USERNAME};
	my $udom=$self->{DOMAIN};

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

	# Figure out which map we are in.

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

	my $rwhat=$what;
	$what=~s/^parameter\_//;
	$what=~s/\_/\./;

	# Build the hash keys for the lookup:

	my $symbparm=$symb.'.'.$what;
	my $mapparm=$mapname.'___(all).'.$what;
	my $usercourseprefix=$cid;


	my $grplevel = "$usercourseprefix.[$cgroup].$mapparm";
	my $seclevel = "$usercourseprefix.[$csec].$mapparm";
	my $courselevel = "$usercourseprefix.$mapparm";


	# Get handy references to the hashes we need in $self:

	my $useropt = $self->{USER_OPT};
	my $courseopt = $self->{COURSE_OPT};
	my $parmhash = $self->{PARM_HASH};

	# Check per user



	if ($uname and defined($useropt)) {
	if (defined($$useropt{$courselevel})) {
	return $$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



	if ($cgroup ne '' and defined ($courseopt)) {
	if (defined($$courseopt{$grplevel})) {
	return $$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





	if ($csec and defined($courseopt)) {
	if (defined($$courseopt{$seclevel})) {
	return $$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:

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


	# Additional course parameters:

	if (defined($courseopt)) {
	if (defined($$courseopt{$courselevel})) {
	return $$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.
	}

	sub course_printdates {
	my ($self, $symb, $part) = @_;


	my $opendate = $self->getcourseparam($symb, $part . '.printstartdate');
	my $closedate = $self->getcourseparam($symb, $part . '.printenddate');
	return ($opendate, $closedate);

	}

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

	$self->generate_course_user_opt(); # If necessary populate the hashes.

	my $uname = $self->{USERNAME};
	my $udom = $self->{DOMAIN};

	# Course, section, group ids come from the env:

	my $cid = $env{'request.course.id'};
	my $csec = $env{'request.course.sec'};
	my $cgroup = ''; # Assume no group

	my @cgroups = split(/:/, $env{'request.course.groups'});
	if(@cgroups > 0) {
	@cgroups = sort(@cgroups);
	$cgroup = $cgroups[0]; # There is a course group.
	}
	my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
	$mapname = &Apache::lonnet::deversion($mapname);

	#
	# Make the various lookup keys:
	#

	$what=~s/^parameter\_//;
	$what=~s/\_/\./;


	my $symbparm = $symb . '.' . $what;
	my $mapparm=$mapname.'___(all).'.$what;

	# Local refs to the hashes we're going to look at:

	my $useropt = $self->{USER_OPT};
	my $courseopt = $self->{COURSE_OPT};

	#
	# We want the course level stuff from the way
	# parmval_real operates
	# TODO: Factor some of this stuff out of
	# both parmval_real and here
	#
	my $courselevel = $cid . '.' . $what;
	my $grplevel = $cid . '.[' . $cgroup . ']' . $what;
	my $seclevel = $cid . '.[' . $csec . ']' . $what;


	# Try for the user's course level option:

	if ($uname and defined($useropt)) {
	if (defined($$useropt{$courselevel})) {
	return $$useropt{$courselevel};
	}
	}
	# Try for the group's course level option:

	if ($cgroup ne '' and defined($courseopt)) {
	if (defined($$courseopt{$grplevel})) {
	return $$courseopt{$grplevel};
	}
	}

	# Try for section level parameters:

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

	if (defined($courseopt)) {
	if (defined($$courseopt{$courselevel})) {
	return $$courseopt{$courselevel};
	}
	}
	return undef;

	}


=pod	=pod

=item * B<getResourceByUrl>(url,multiple):	=item * B<getResourceByUrl>(url,multiple):
Line 2667 resource appears multiple times in the c	Line 3297 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 2676 true if the resource should be included,	Line 3306 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 2749 sub retrieveResources {	Line 3384 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 2778 sub retrieveResources {	Line 3414 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 2842 getIterator behaves as follows:	Line 3478 getIterator behaves as follows:

=over 4	=over 4

=item * B<getIterator>(firstResource, finishResource, filterHash, condition, forceTop, returnTopMap):	=item * B<getIterator>(firstResource, finishResource, filterHash, condition, forceTop, returnTopMap, $deeplinklisted):

All parameters are optional. firstResource is a resource reference	All parameters are optional. firstResource is a resource reference
corresponding to where the iterator should start. It defaults to	corresponding to where the iterator should start. It defaults to
Line 2859 that is not just a single, 'redirecting'	Line 3495 that is not just a single, 'redirecting'
will return all information, starting with the top-level map,	will return all information, starting with the top-level map,
regardless of content. returnTopMap, if true (default false), will	regardless of content. returnTopMap, if true (default false), will
cause the iterator to return the top-level map object (resource 0.0)	cause the iterator to return the top-level map object (resource 0.0)
before anything else.	before anything else. deeplinklisted if true (default false), will
	check "listed" status of a resource with a deeplink, and unless "absent"
	will exclude deeplink checking when retrieving the browsePriv from
	lonnet::allowed().

Thus, by default, only top-level resources will be shown. Change the	Thus, by default, only top-level resources will be shown. Change the
condition to a 1 without changing the hash, and all resources will be	condition to a 1 without changing the hash, and all resources will be
Line 2929 Note that inside of the loop, it's frequ	Line 3568 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 2989 sub new {	Line 3635 sub new {
# have we done that yet?	# have we done that yet?
$self->{HAVE_RETURNED_0} = 0;	$self->{HAVE_RETURNED_0} = 0;

	# Do we want to check the "listed" status for a resource for which
	# deeplinking applies.
	$self->{DEEPLINKLISTED} = shift;

# Now, we need to pre-process the map, by walking forward and backward	# Now, we need to pre-process the map, by walking forward and backward
# over the parts of the map we're going to look at.	# over the parts of the map we're going to look at.

Line 3076 sub new {	Line 3726 sub new {
if ($resourceCount == 1 && $resource->is_sequence() && !$self->{FORCE_TOP}) {	if ($resourceCount == 1 && $resource->is_sequence() && !$self->{FORCE_TOP}) {
my $firstResource = $resource->map_start();	my $firstResource = $resource->map_start();
my $finishResource = $resource->map_finish();	my $finishResource = $resource->map_finish();
my $result;	return Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,
my $rdump = Data::Dumper->new([$result]);	$finishResource, $self->{FILTER},
$result = Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,	$self->{ALREADY_SEEN},
$finishResource, $self->{FILTER},	$self->{CONDITION},
$self->{ALREADY_SEEN},	$self->{FORCE_TOP},
$self->{CONDITION},	undef,$self->{DEEPLINKLISTED});
$self->{FORCE_TOP});
return $result;


}	}

# Set up some bookkeeping information.	# Set up some bookkeeping information.
Line 3104 sub new {	Line 3750 sub new {
$self->{ALREADY_SEEN}->{$self->{FIRST_RESOURCE}->{ID}} = 1;	$self->{ALREADY_SEEN}->{$self->{FIRST_RESOURCE}->{ID}} = 1;

bless ($self);	bless ($self);
my $selfDump = Data::Dumper->new([$self]);

return $self;	return $self;
}	}

sub next {	sub next {
my $self = shift;	my $self = shift;
my $closeAllPages=shift;	my $closeAllPages=shift;
	my $noblockcheck = shift;
if ($self->{FINISHED}) {	if ($self->{FINISHED}) {
return END_ITERATOR();	return END_ITERATOR();
}	}
Line 3121 sub next {	Line 3766 sub next {
if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0}) {	if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0}) {
$self->{HAVE_RETURNED_0} = 1;	$self->{HAVE_RETURNED_0} = 1;
my $nextTopLevel = $self->{NAV_MAP}->getById('0.0');	my $nextTopLevel = $self->{NAV_MAP}->getById('0.0');

return $self->{NAV_MAP}->getById('0.0');	return $self->{NAV_MAP}->getById('0.0');
}	}
if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0_BEGIN_MAP}) {	if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0_BEGIN_MAP}) {
Line 3147 sub next {	Line 3791 sub next {
if (defined($self->{FORCE_NEXT})) {	if (defined($self->{FORCE_NEXT})) {
my $tmp = $self->{FORCE_NEXT};	my $tmp = $self->{FORCE_NEXT};
$self->{FORCE_NEXT} = undef;	$self->{FORCE_NEXT} = undef;

return $tmp;	return $tmp;
}	}

Line 3248 sub next {	Line 3891 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 3257 sub next {	Line 3901 sub next {
$finishResource, $self->{FILTER},	$finishResource, $self->{FILTER},
$self->{ALREADY_SEEN},	$self->{ALREADY_SEEN},
$self->{CONDITION},	$self->{CONDITION},
$self->{FORCE_TOP});	$self->{FORCE_TOP},
	undef,$self->{DEEPLINKLISTED});
}	}

# 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,$self->{DEEPLINKLISTED});
if (!$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);
}	}

my $hereResource = $self->{HERE};

return $self->{HERE};	return $self->{HERE};

}	}
Line 3437 sub next {	Line 4080 sub next {
my $nextUnfiltered;	my $nextUnfiltered;
if ($self->{DIRECTION} == FORWARD()) {	if ($self->{DIRECTION} == FORWARD()) {
$nextUnfiltered = $self->{HERE}->getNext();	$nextUnfiltered = $self->{HERE}->getNext();

} else {	} else {
$nextUnfiltered = $self->{HERE}->getPrevious();	$nextUnfiltered = $self->{HERE}->getPrevious();
}	}
Line 3592 sub new {	Line 4234 sub new {
$self->{NAV_MAP}->{RESOURCE_CACHE}->{$self->{ID}} = $self;	$self->{NAV_MAP}->{RESOURCE_CACHE}->{$self->{ID}} = $self;
$self->{RESOURCE_ERROR} = 0;	$self->{RESOURCE_ERROR} = 0;

	$self->{DUEDATE_CACHE} = undef;

# A hash that can be used by two-pass algorithms to store data	# A hash that can be used by two-pass algorithms to store data
# 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 3689 sub from { my $self=shift; return $self-	Line 4336 sub from { my $self=shift; return $self-
sub goesto { my $self=shift; return $self->navHash("goesto_", 1); }	sub goesto { my $self=shift; return $self->navHash("goesto_", 1); }
sub kind { my $self=shift; return $self->navHash("kind_", 1); }	sub kind { my $self=shift; return $self->navHash("kind_", 1); }
sub randomout { my $self=shift; return $self->navHash("randomout_", 1); }	sub randomout { my $self=shift; return $self->navHash("randomout_", 1); }
	sub deeplinkout { my $self=shift; return $self->navHash("deeplinkout_", 1); }
sub randompick {	sub randompick {
my $self = shift;	my $self = shift;
my $randompick = $self->parmval('randompick');	my $randompick = $self->parmval('randompick');
Line 3710 sub src {	Line 4358 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 3724 sub enclosing_map_src {	Line 4372 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 3732 sub symb {	Line 4381 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 3943 sub is_task {	Line 4592 sub is_task {

sub is_empty_sequence {	sub is_empty_sequence {
my $self=shift;	my $self=shift;
my $src = $self->src();
return !$self->is_page() && $self->navHash("is_map_", 1) && !$self->navHash("map_type_" . $self->map_pc());	return !$self->is_page() && $self->navHash("is_map_", 1) && !$self->navHash("map_type_" . $self->map_pc());
}	}

Line 3955 sub parmval {	Line 4603 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 3988 resource of the map.	Line 4636 resource of the map.

Returns a string with the type of the map in it.	Returns a string with the type of the map in it.

=item *B<map_hierarchy>:	=item * B<map_hierarchy>:

Returns a string with a comma-separated ordered list of map_pc IDs	Returns a string with a comma-separated ordered list of map_pc IDs
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 4029 sub map_hierarchy {	Line 4683 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 4059 their code.)	Line 4718 their code.)

=over 4	=over 4


=item * B<printable>	=item * B<printable>

returns true if the current date is such that the	returns true if the current date is such that the
specified resource part is printable.	specified resource part is printable.


=item * B<resprintable>	=item * B<resprintable>

Returns true if all parts in the resource are printable making the	Returns true if all parts in the resource are printable making the
Line 4122 Get the weight for the problem.	Line 4783 Get the weight for the problem.

=cut	=cut

sub printable {

my ($self, $part) = @_;

# Get the print open/close dates for the resource.

my $start = $self->parmval("prinstartdate", $part);	sub printable {
my $end = $self->parmval("printenddate", $part);
	my ($self, $part) = @_;

# The following cases apply:	# The following cases apply:
# - No dates set: Printable.	# - If a start date is not set, it is replaced by the open date.
	# - Ditto for start/open replaced by content open.
	# - If neither start nor printdates are set the part is printable.
# - Start date set but no end date: Printable if now >= start date.	# - Start date set but no end date: Printable if now >= start date.
# - End date set but no start date: Printable if now <= end date.	# - End date set but no start date: Printable if now <= end date.
# - both defined: printable if start <= now <= end	# - both defined: printable if start <= now <= end
#	#

	# Get the print open/close dates for the resource.

	my $start = $self->parmval("printstartdate", $part);
	my $end = $self->parmval("printenddate", $part);

	if (!$start) {
	$start = $self->parmval("opendate", $part);
	}
	if (!$start) {
	$start = $self->parmval("contentopen", $part);
	}


my $now = time();	my $now = time();


my $startok = 1;	my $startok = 1;
my $endok = 1;	my $endok = 1;

Line 4159 sub resprintable {	Line 4835 sub resprintable {
my $partsref = $self->parts();	my $partsref = $self->parts();
my @parts = @$partsref;	my @parts = @$partsref;

if ((!defined(@parts)) \|\| (scalar(@parts) == 0)) {	if (!@parts) {
return $self->printable(0);	return $self->printable(0);
} else {	} else {
foreach my $part (@parts) {	foreach my $part (@parts) {
Line 4191 sub awarded {	Line 4867 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 $part = shift;
Line 4217 sub checkedin {	Line 4893 sub checkedin {
if (!defined($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 4230 sub checkedin {	Line 4906 sub checkedin {

sub duedate {	sub duedate {
(my $self, my $part) = @_;	(my $self, my $part) = @_;
	if (defined ($self->{DUEDATE_CACHE}->{$part})) {
	return $self->{DUEDATE_CACHE}->{$part};
	}
my $date;	my $date;
my @interval=$self->parmval("interval", $part);	my @interval=$self->parmval("interval", $part);
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 $timelimit = $1;
$self->symb);	my $first_access=&Apache::lonnet::get_first_access($interval[1],
	$self->{SYMB});
if (defined($first_access)) {	if (defined($first_access)) {
my $interval = $first_access+$interval[0];	my $interval = $first_access+$timelimit;
$date = (!$due_date \|\| $interval < $due_date) ? $interval	$date = (!$due_date \|\| $interval < $due_date) ? $interval
: $due_date;	: $due_date;
} else {	} else {
Line 4246 sub duedate {	Line 4926 sub duedate {
} else {	} else {
$date = $due_date;	$date = $due_date;
}	}
	$self->{DUEDATE_CACHE}->{$part} = $date;
return $date;	return $date;
}	}
sub handgrade {	sub handgrade {
Line 4307 sub weight {	Line 4988 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 4316 sub part_display {	Line 4997 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 4330 sub slot_control {	Line 5011 sub slot_control {
my $available = $self->parmval("available", $part);	my $available = $self->parmval("available", $part);
return ($useslots,$availablestudent,$available);	return ($useslots,$availablestudent,$available);
}	}
	sub deeplink {
	my ($self,$caller,$action) = @_;
	my $deeplink = $self->parmval("deeplink");
	if ($deeplink) {
	my ($state,$others,$listed,$scope) = split(/,/,$deeplink);
	if ($action eq 'getlisted') {
	return $listed;
	}
	if ($env{'request.deeplink.login'}) {
	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
	if ($deeplink_symb) {
	my ($loginmap,$mapname);
	if ($deeplink_symb =~ /\.(page\|sequence)$/) {
	$mapname = $self->enclosing_map_src();
	$loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[2]);
	return if ($mapname eq $loginmap);
	} else {
	return if ($deeplink_symb eq $self->symb());
	if (($scope eq 'map') \|\| ($scope eq 'rec')) {
	$mapname = $self->enclosing_map_src();
	$loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[0]);
	return if ($mapname eq $loginmap);
	}
	}
	if ($scope eq 'rec') {
	my $map_pc = $self->navHash('map_pc_'.$mapname);
	my @recurseup = split(/,/,$self->navHash('map_hierarchy_'.$map_pc));
	my $login_pc = $self->navHash('map_pc_'.$loginmap);
	return if (grep(/^\Q$login_pc\E$/,@recurseup));
	}
	}
	}
	unless (($caller eq 'sequence') \|\| ($state eq 'both')) {
	return $listed;
	}
	}
	return;
	}

# Multiple things need this	# Multiple things need this
sub getReturnHash {	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 4401 and use the link as appropriate.	Line 5122 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 4425 sub getFeedback {	Line 5146 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,$source);
}	}
Line 4575 sub extractParts {	Line 5296 sub extractParts {
if ($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 4593 sub extractParts {	Line 5314 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;
}	}
}	}
}	}
my @sortedParts = sort keys %parts;	my @sortedParts = sort(keys(%parts));
$self->{PARTS} = \@sortedParts;	$self->{PARTS} = \@sortedParts;
}	}

Line 4624 sub extractParts {	Line 5345 sub extractParts {
# So we have to use our knowlege of part names to figure out	# So we have to use our knowlege of part names to figure out
# where the part names begin and end, and even then, it is possible	# where the part names begin and end, and even then, it is possible
# to construct ambiguous situations.	# to construct ambiguous situations.
foreach my $data (split /,/, $metadata) {	foreach my $data (split(/,/, $metadata)) {
if ($data =~ /^([a-zA-Z]+)response_(.*)/	if ($data =~ /^([a-zA-Z]+)response_(.*)/
\|\| $data =~ /^(Task)_(.*)/) {	\|\| $data =~ /^(Task)_(.*)/) {
my $responseType = $1;	my $responseType = $1;
my $partStuff = $2;	my $partStuff = $2;
my $partIdSoFar = '';	my $partIdSoFar = '';
my @partChunks = split /_/, $partStuff;	my @partChunks = split(/_/, $partStuff);
my $i = 0;	my $i = 0;
for ($i = 0; $i < scalar(@partChunks); $i++) {	for ($i = 0; $i < scalar(@partChunks); $i++) {
if ($partIdSoFar) { $partIdSoFar .= '_'; }	if ($partIdSoFar) { $partIdSoFar .= '_'; }
Line 5103 sub status {	Line 5824 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 5112 sub check_for_slot {	Line 5833 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 5131 sub check_for_slot {	Line 5852 sub check_for_slot {
} else {	} else {
if ($ip ne '') {	if ($ip ne '') {
if (!&Apache::loncommon::check_ip_acc($ip)) {	if (!&Apache::loncommon::check_ip_acc($ip)) {
return (RESERVED_LOCATION,$ip,$slot_name);	return (RESERVED_LOCATION,$end,$slot_name);
}	}
}	}
my @proctors;	my @proctors;
Line 5142 sub check_for_slot {	Line 5863 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 5152 sub check_for_slot {	Line 5873 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 ($is_correct) {
return (CORRECT);	return (CORRECT);
Line 5179 sub check_for_slot {	Line 5911 sub check_for_slot {
if (ref($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 5339 sub completable {	Line 6101 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 5374 sub getPrevious {	Line 6169 sub getPrevious {
my $self = shift;	my $self = shift;
my @branches;	my @branches;
my $from = $self->from();	my $from = $self->from();
foreach my $branch ( split /,/, $from) {	foreach my $branch ( split(/,/, $from)) {
my $choice = $self->{NAV_MAP}->getById($branch);	my $choice = $self->{NAV_MAP}->getById($branch);
my $prev = $choice->comesfrom();	my $prev = $choice->comesfrom();
$prev = $self->{NAV_MAP}->getById($prev);	$prev = $self->{NAV_MAP}->getById($prev);
Line 5386 sub getPrevious {	Line 6181 sub getPrevious {

sub browsePriv {	sub browsePriv {
my $self = shift;	my $self = shift;
	my $noblockcheck = shift;
	my $deeplinklisted = shift;
if (defined($self->{BROWSE_PRIV})) {	if (defined($self->{BROWSE_PRIV})) {
return $self->{BROWSE_PRIV};	return $self->{BROWSE_PRIV};
}	}
	my ($nodeeplinkcheck,$nodeeplinkout);
	if ($deeplinklisted) {
	my $deeplink = $self->deeplink(undef,'getlisted');
	if (($deeplink) && ($deeplink ne 'absent')) {
	$nodeeplinkcheck = 1;
	}
	$nodeeplinkout = 1;
	}
$self->{BROWSE_PRIV} = &Apache::lonnet::allowed('bre',$self->src(),	$self->{BROWSE_PRIV} = &Apache::lonnet::allowed('bre',$self->src(),
$self->symb());	$self->{SYMB},undef,
	undef,$noblockcheck,
	undef,$nodeeplinkcheck,
	$nodeeplinkout);
}	}

=pod	=pod

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

Removed from v.1.475
changed lines
	Added in v.1.509.2.14.2.3