loncom/interface/lonnavmaps.pm - diff

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Diff for /loncom/interface/lonnavmaps.pm between versions 1.222 and 1.337

version 1.222, 2003/08/19 15:29:33	version 1.337, 2005/09/20 07:52:03
Line 25	Line 25
#	#
# http://www.lon-capa.org/	# http://www.lon-capa.org/
#	#
# (Page Handler	###
#
# (TeX Content Handler
#
# 05/29/00,05/30 Gerd Kortemeyer)
# 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23,
# 10/02,10/10,10/14,10/16,10/18,10/19,10/31,11/6,11/14,11/16 Gerd Kortemeyer)
#
# 3/1/1,6/1,17/1,29/1,30/1,2/8,9/21,9/24,9/25 Gerd Kortemeyer
# YEAR=2002
# 1/1 Gerd Kortemeyer
# Oct-Nov Jeremy Bowers
# YEAR=2003
# Jeremy Bowers ... lots of days

package Apache::lonnavmaps;	package Apache::lonnavmaps;

use strict;	use strict;
	use GDBM_File;
use Apache::Constants qw(:common :http);	use Apache::Constants qw(:common :http);
use Apache::loncommon();	use Apache::loncommon();
use Apache::lonmenu();	use Apache::lonmenu();
	use Apache::lonenc();
	use Apache::lonlocal;
	use Apache::lonnet;
use POSIX qw (floor strftime);	use POSIX qw (floor strftime);
use Data::Dumper; # for debugging, not always used	use Data::Dumper; # for debugging, not always
	use Time::HiRes qw( gettimeofday tv_interval );

# symbolic constants	# symbolic constants
sub SYMB { return 1; }	sub SYMB { return 1; }
Line 61 my $resObj = "Apache::lonnavmaps::resour	Line 53 my $resObj = "Apache::lonnavmaps::resour
# Keep these mappings in sync with lonquickgrades, which uses the colors	# Keep these mappings in sync with lonquickgrades, which uses the colors
# instead of the icons.	# instead of the icons.
my %statusIconMap =	my %statusIconMap =
( $resObj->NETWORK_FAILURE => '',	(
$resObj->NOTHING_SET => '',	$resObj->CLOSED => '',
$resObj->CORRECT => 'navmap.correct.gif',	$resObj->OPEN => 'navmap.open.gif',
$resObj->EXCUSED => 'navmap.correct.gif',	$resObj->CORRECT => 'navmap.correct.gif',
$resObj->PAST_DUE_NO_ANSWER => 'navmap.wrong.gif',	$resObj->PARTIALLY_CORRECT => 'navmap.ellipsis.gif',
$resObj->PAST_DUE_ANSWER_LATER => 'navmap.wrong.gif',	$resObj->INCORRECT => 'navmap.wrong.gif',
$resObj->ANSWER_OPEN => 'navmap.wrong.gif',	$resObj->ATTEMPTED => 'navmap.ellipsis.gif',
$resObj->OPEN_LATER => '',	$resObj->ERROR => ''
$resObj->TRIES_LEFT => 'navmap.open.gif',	);
$resObj->INCORRECT => 'navmap.wrong.gif',
$resObj->OPEN => 'navmap.open.gif',
$resObj->ATTEMPTED => 'navmap.ellipsis.gif',
$resObj->ANSWER_SUBMITTED => 'navmap.ellipsis.gif' );

my %iconAltTags =	my %iconAltTags =
( 'navmap.correct.gif' => 'Correct',	( 'navmap.correct.gif' => 'Correct',
Line 94 my %colormap =	Line 82 my %colormap =
$resObj->OPEN => '',	$resObj->OPEN => '',
$resObj->NOTHING_SET => '',	$resObj->NOTHING_SET => '',
$resObj->ATTEMPTED => '',	$resObj->ATTEMPTED => '',
$resObj->ANSWER_SUBMITTED => ''	$resObj->ANSWER_SUBMITTED => '',
	$resObj->PARTIALLY_CORRECT => '#006600'
);	);
# And a special case in the nav map; what to do when the assignment	# And a special case in the nav map; what to do when the assignment
# is not yet done and due in less then 24 hours	# is not yet done and due in less then 24 hours
my $hurryUpColor = "#FF0000";	my $hurryUpColor = "#FF0000";

	sub launch_win {
	my ($mode,$script,$toplinkitems,$firsttime)=@_;
	my $result;
	if ($script ne 'no') {
	$result.='<script type="text/javascript">';
	}
	if ($firsttime) {
	$result.='function launch_navmapwin() {
	newWindow=open(\'/adm/navmaps?launchExternalRoles\',\'loncapanav\',\'width=400,height=600,scrollbars=1\');
	}';
	} else {
	$result.='function launch_navmapwin() {
	newWindow=open(\'/adm/navmaps?launchExternal\',\'loncapanav\',\'width=400,height=600,scrollbars=1\');
	}';
	}
	if ($mode eq 'now') {
	$result.="\nlaunch_navmapwin();\n";
	}
	if ($script ne 'no') {
	$result.='</script>';
	}
	if ($mode eq 'link') {
	&add_linkitem($toplinkitems,'launchnav','launch_navmapwin()',
	"Launch navigation window");
	}
	return $result;
	}

	sub close {
	if ($env{'environment.remotenavmap'} ne 'on') { return ''; }
	return(<<ENDCLOSE);
	<script type="text/javascript">
	window.status='Accessing Nav Control';
	menu=window.open("/adm/rat/empty.html","loncapanav",
	"height=600,width=400,scrollbars=1");
	window.status='Closing Nav Control';
	menu.close();
	window.status='Done.';
	</script>
	ENDCLOSE
	}

	sub update {
	if ($env{'environment.remotenavmap'} ne 'on') { return ''; }
	if (!$env{'request.course.id'}) { return ''; }
	if ($ENV{'REQUEST_URI'}=~m\|^/adm/navmaps\|) { return ''; }
	return(<<ENDUPDATE);
	<form name="navform"></form>
	<script type="text/javascript">
	this.document.navform.action='/adm/navmaps#curloc';
	this.document.navform.target='loncapanav';
	this.document.navform.submit();
	</script>
	ENDUPDATE
	}

sub handler {	sub handler {
my $r = shift;	my $r = shift;
real_handler($r);	real_handler($r);
Line 107 sub handler {	Line 152 sub handler {

sub real_handler {	sub real_handler {
my $r = shift;	my $r = shift;
	#my $t0=[&gettimeofday()];
# Handle header-only request	# Handle header-only request
if ($r->header_only) {	if ($r->header_only) {
if ($ENV{'browser.mathml'}) {	if ($env{'browser.mathml'}) {
$r->content_type('text/xml');	&Apache::loncommon::content_type($r,'text/xml');
} else {	} else {
$r->content_type('text/html');	&Apache::loncommon::content_type($r,'text/html');
}	}
$r->send_http_header;	$r->send_http_header;
return OK;	return OK;
}	}

# Send header, don't cache this page	# Send header, don't cache this page
if ($ENV{'browser.mathml'}) {	if ($env{'browser.mathml'}) {
$r->content_type('text/xml');	&Apache::loncommon::content_type($r,'text/xml');
} else {	} else {
$r->content_type('text/html');	&Apache::loncommon::content_type($r,'text/html');
}	}
&Apache::loncommon::no_cache($r);	&Apache::loncommon::no_cache($r);
$r->send_http_header;	$r->send_http_header;

	my %toplinkitems=();
	&add_linkitem(\%toplinkitems,'blank','',"Select Action");
	if ($ENV{QUERY_STRING} eq 'collapseExternal') {
	&Apache::lonnet::put('environment',{'remotenavmap' => 'off'});
	&Apache::lonnet::appenv('environment.remotenavmap' => 'off');
	my $menu=&Apache::lonmenu::reopenmenu();
	my $navstatus=&Apache::lonmenu::get_nav_status();
	if ($menu) {
	$menu=(<<MENU)
	swmenu=$menu
	swmenu.clearTimeout(swmenu.menucltim);
	$navstatus
	MENU
	} else {
	my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
	my $mainwindow='window.open('.$nothing.',"loncapaclient","",false);';
	$menu=(<<MENU)
	swmenu=$mainwindow
	$navstatus
	MENU
	}
	my $html=&Apache::lonxml::xmlbegin();
	$r->print(<<"ENDSUBM");
	$html
	<head>
	<script type="text/javascript">
	function submitthis() {
	$menu
	self.close();
	}

	</script>
	</head>
	<body bgcolor="#FFFFFF" onLoad="submitthis()"></body>
	</html>
	ENDSUBM
	return;
	}
	if ($ENV{QUERY_STRING} =~ /^launchExternal/) {
	&Apache::lonnet::put('environment',{'remotenavmap' => 'on'});
	&Apache::lonnet::appenv('environment.remotenavmap' => 'on');
	my $menu=&Apache::lonmenu::reopenmenu();
	my $navstatus=&Apache::lonmenu::get_nav_status();
	if ($menu) {
	$r->print(<<MENU);
	<script type="text/javascript">
	swmenu=$menu
	swmenu.clearTimeout(swmenu.menucltim);
	$navstatus
	</script>
	MENU
	}
	}
	if ($ENV{QUERY_STRING} eq 'turningOffExternal') {
	$env{'environment.remotenavmap'}='off';
	}

# Create the nav map	# Create the nav map
my $navmap = Apache::lonnavmaps::navmap->new();	my $navmap = Apache::lonnavmaps::navmap->new();


if (!defined($navmap)) {	if (!defined($navmap)) {
my $requrl = $r->uri;	my $requrl = $r->uri;
$ENV{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized";	$env{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized";
return HTTP_NOT_ACCEPTABLE;	return HTTP_NOT_ACCEPTABLE;
}	}
	my $html=&Apache::lonxml::xmlbegin();
$r->print("<html><head>\n");	$r->print("$html<head>\n");
$r->print("<title>Navigate Course Contents</title>");	$r->print("<title>".&mt('Navigate Course Contents')."</title>");
# ------------------------------------------------------------ Get query string	# ------------------------------------------------------------ Get query string
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['register']);	&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['register','sort','showOnlyHomework','postsymb']);

# ----------------------------------------------------- Force menu registration	# ----------------------------------------------------- Force menu registration
my $addentries='';	my $addentries='';
if ($ENV{'form.register'}) {	my $more_unload;
$addentries=' onLoad="'.&Apache::lonmenu::loadevents().	my $body_only='';
'" onUnload="'.&Apache::lonmenu::unloadevents().'"';	if ($env{'environment.remotenavmap'} eq 'on') {
$r->print(&Apache::lonmenu::registerurl(1));	$r->print('<script type="text/javascript">
	function collapse() {
	this.document.location="/adm/navmaps?collapseExternal";
	}
	</script>');
	# FIXME need to be smarter to only catch window close events
	# $more_unload="collapse()"
	$body_only=1;
	}
	if ($env{'form.register'}) {
	$addentries=' onLoad="'.&Apache::lonmenu::loadevents().
	'" onUnload="'.&Apache::lonmenu::unloadevents().';'.
	$more_unload.'"';
	$r->print(&Apache::lonmenu::registerurl(1));
	} else {
	$addentries=' onUnload="'.$more_unload.'"';
}	}

# Header	# Header
$r->print('</head>'.	$r->print('</head>'.
&Apache::loncommon::bodytag('Navigate Course Contents','',	&Apache::loncommon::bodytag('Navigate Course Contents','',
$addentries,'','',$ENV{'form.register'}));	$addentries,$body_only,'',
	$env{'form.register'}));
$r->print('<script>window.focus();</script>');	$r->print('<script>window.focus();</script>');

$r->rflush();	$r->rflush();

# Check that it's defined	# Check that it's defined
if (!($navmap->courseMapDefined())) {	if (!($navmap->courseMapDefined())) {
	$r->print(&Apache::loncommon::help_open_menu('','Navigation Screen','Navigation_Screen','',undef,'RAT'));
$r->print('<font size="+2" color="red">Coursemap undefined.</font>' .	$r->print('<font size="+2" color="red">Coursemap undefined.</font>' .
'</body></html>');	'</body></html>');
return OK;	return OK;
Line 184 sub real_handler {	Line 302 sub real_handler {
if ($sequenceCount == 1) {	if ($sequenceCount == 1) {
# The automatic iterator creation in the render call	# The automatic iterator creation in the render call
# will pick this up. We know the condition because	# will pick this up. We know the condition because
# the defined($ENV{'form.filter'}) also ensures this	# the defined($env{'form.filter'}) also ensures this
# is a fresh call.	# is a fresh call.
$ENV{'form.filter'} = "$sequenceId";	$env{'form.filter'} = "$sequenceId";
}	}
}	}

	if ($ENV{QUERY_STRING} eq 'launchExternal') {
	$r->print('
	<form name="returnwin" action="/adm/flip?postdata=navlaunch%3a"
	method="post" target="loncapaclient">
	</form>');
	$r->print('
	<script type="text/javascript">
	this.document.returnwin.submit();
	</script>');
	}

	if ($env{'environment.remotenavmap'} ne 'on') {
	$r->print(&launch_win('link','yes',\%toplinkitems));
	}
	if ($env{'environment.remotenavmap'} eq 'on') {
	&add_linkitem(\%toplinkitems,'closenav','collapse()',
	"Close navigation window");
	}

my $jumpToFirstHomework = 0;	my $jumpToFirstHomework = 0;
# Check to see if the student is jumping to next open, do-able problem	# Check to see if the student is jumping to next open, do-able problem
if ($ENV{QUERY_STRING} eq 'jumpToFirstHomework') {	if ($ENV{QUERY_STRING} =~ /^jumpToFirstHomework/) {
$jumpToFirstHomework = 1;	$jumpToFirstHomework = 1;
# Find the next homework problem that they can do.	# Find the next homework problem that they can do.
my $iterator = $navmap->getIterator(undef, undef, undef, 1);	my $iterator = $navmap->getIterator(undef, undef, undef, 1);
Line 212 sub real_handler {	Line 349 sub real_handler {
pop @$stack; # last resource in the stack is the problem	pop @$stack; # last resource in the stack is the problem
# itself, which we don't need in the map stack	# itself, which we don't need in the map stack
my @mapPcs = map {$_->map_pc()} @$stack;	my @mapPcs = map {$_->map_pc()} @$stack;
$ENV{'form.filter'} = join(',', @mapPcs);	$env{'form.filter'} = join(',', @mapPcs);

# Mark as both "here" and "jump"	# Mark as both "here" and "jump"
$ENV{'form.postsymb'} = $curRes->symb();	$env{'form.postsymb'} = $curRes->symb();
}	}
}	}
}	}
Line 225 sub real_handler {	Line 362 sub real_handler {
$r->print("<font size='+2'>All homework assignments have been completed.</font><br /><br />");	$r->print("<font size='+2'>All homework assignments have been completed.</font><br /><br />");
}	}
} else {	} else {
$r->print("<a href='navmaps?jumpToFirstHomework'>" .	&add_linkitem(\%toplinkitems,'firsthomework',
"Go To My First Homework Problem</a>    ");	'location.href="navmaps?jumpToFirstHomework"',
	"Show Me My First Homework Problem");
}	}

my $suppressEmptySequences = 0;	my $suppressEmptySequences = 0;
Line 235 sub real_handler {	Line 373 sub real_handler {

# Display only due homework.	# Display only due homework.
my $showOnlyHomework = 0;	my $showOnlyHomework = 0;
if ($ENV{QUERY_STRING} eq 'showOnlyHomework') {	if ($env{'form.showOnlyHomework'} eq "1") {
$showOnlyHomework = 1;	$showOnlyHomework = 1;
$suppressEmptySequences = 1;	$suppressEmptySequences = 1;
$filterFunc = sub { my $res = shift;	$filterFunc = sub { my $res = shift;
return $res->completable() \|\| $res->is_map();	return $res->completable() \|\| $res->is_map();
};	};
$r->print("<p><font size='+2'>Uncompleted Homework</font></p>");	&add_linkitem(\%toplinkitems,'everything',
$ENV{'form.filter'} = '';	'location.href="navmaps?sort='.$env{'form.sort'}.'"',
$ENV{'form.condition'} = 1;	"Show Everything");
	$r->print("<p><font size='+2'>".&mt("Uncompleted Homework")."</font></p>");
	$env{'form.filter'} = '';
	$env{'form.condition'} = 1;
$resource_no_folder_link = 1;	$resource_no_folder_link = 1;
} else {	} else {
$r->print("<a href='navmaps?showOnlyHomework'>" .	&add_linkitem(\%toplinkitems,'uncompleted',
"Show Only Uncompleted Homework</a>    ");	'location.href="navmaps?sort='.$env{'form.sort'}.
}	'&showOnlyHomework=1"',
	"Show Only Uncompleted Homework");
	}

	my %selected=($env{'form.sort'} => 'selected=on');
	my $sort_html=("<form>
	<nobr>
	<input type=\"hidden\" name=\"showOnlyHomework\" value=\"".$env{'form.showOnlyHomework'}."\" />
	<input type=\"submit\" value=\"".&mt('Sort by:')."\" />
	<select name=\"sort\">
	<option value=\"default\" $selected{'default'}>".&mt('Default')."</option>
	<option value=\"title\" $selected{'title'} >".&mt('Title')."</option>
	<option value=\"duedate\" $selected{'duedate'}>".&mt('Duedate')."</option>
	<option value=\"discussion\" $selected{'discussion'}>".&mt('Has New Discussion')."</option>
	</select>
	</nobr>
	</form>");
# renderer call	# renderer call
my $renderArgs = { 'cols' => [0,1,2,3],	my $renderArgs = { 'cols' => [0,1,2,3],
	'sort' => $env{'form.sort'},
'url' => '/adm/navmaps',	'url' => '/adm/navmaps',
'navmap' => $navmap,	'navmap' => $navmap,
'suppressNavmap' => 1,	'suppressNavmap' => 1,
'suppressEmptySequences' => $suppressEmptySequences,	'suppressEmptySequences' => $suppressEmptySequences,
'filterFunc' => $filterFunc,	'filterFunc' => $filterFunc,
'resource_no_folder_link' => $resource_no_folder_link,	'resource_no_folder_link' => $resource_no_folder_link,
'r' => $r};	'sort_html'=> $sort_html,
	'r' => $r,
	'caller' => 'navmapsdisplay',
	'linkitems' => \%toplinkitems};
my $render = render($renderArgs);	my $render = render($renderArgs);
$navmap->untieHashes();

# If no resources were printed, print a reassuring message so the	# If no resources were printed, print a reassuring message so the
# user knows there was no error.	# user knows there was no error.
if ($renderArgs->{'counter'} == 0) {	if ($renderArgs->{'counter'} == 0) {
if ($showOnlyHomework) {	if ($showOnlyHomework) {
$r->print("<p><font size='+1'>All homework is currently completed.</font></p>");	$r->print("<p><font size='+1'>".&mt("All homework is currently completed").".</font></p>");
} else { # both jumpToFirstHomework and normal use the same: course must be empty	} else { # both jumpToFirstHomework and normal use the same: course must be empty
$r->print("<p><font size='+1'>This course is empty.</font></p>");	$r->print("<p><font size='+1'>This course is empty.</font></p>");
}	}
}	}
	#my $td=&tv_interval($t0);
	#$r->print("<br />$td");

$r->print("</body></html>");	$r->print("</body></html>");
$r->rflush();	$r->rflush();
Line 301 sub removeFromFilter {	Line 462 sub removeFromFilter {

# Convenience function: Given a stack returned from getStack on the iterator,	# Convenience function: Given a stack returned from getStack on the iterator,
# return the correct src() value.	# return the correct src() value.
# Later, this should add an anchor when we start putting anchors in pages.
sub getLinkForResource {	sub getLinkForResource {
my $stack = shift;	my $stack = shift;
my $res;	my $res;

# Check to see if there are any pages in the stack	# Check to see if there are any pages in the stack
foreach $res (@$stack) {	foreach $res (@$stack) {
if (defined($res) && $res->is_page()) {	if (defined($res)) {
return $res->src();	my $anchor;
	if ($res->is_page()) {
	foreach (@$stack) { if (defined($_)) { $anchor = $_; } }
	$anchor=&Apache::lonnet::escape($anchor->shown_symb());
	return ($res->link(),$res->shown_symb(),$anchor);
	}
	# in case folder was skipped over as "only sequence"
	my ($map,$id,$src)=&Apache::lonnet::decode_symb($res->symb());
	if ($map=~/\.page$/) {
	my $url=&Apache::lonnet::clutter($map);
	$anchor=&Apache::lonnet::escape($src->shown_symb());
	return ($url,$res->shown_symb(),$anchor);
	}
}	}
}	}

Line 321 sub getLinkForResource {	Line 493 sub getLinkForResource {
if (defined($_)) { $res = $_; }	if (defined($_)) { $res = $_; }
}	}

return $res->src();	return ($res->link(),$res->shown_symb());
}	}

# Convenience function: This seperates the logic of how to create	# Convenience function: This separates the logic of how to create
# the problem text strings ("Due: DATE", "Open: DATE", "Not yet assigned",	# the problem text strings ("Due: DATE", "Open: DATE", "Not yet assigned",
# etc.) into a seperate function. It takes a resource object as the	# etc.) into a separate function. It takes a resource object as the
# first parameter, and the part number of the resource as the second.	# first parameter, and the part number of the resource as the second.
# It's basically a big switch statement on the status of the resource.	# It's basically a big switch statement on the status of the resource.

Line 336 sub getDescription {	Line 508 sub getDescription {
my $status = $res->status($part);	my $status = $res->status($part);

if ($status == $res->NETWORK_FAILURE) {	if ($status == $res->NETWORK_FAILURE) {
return "Having technical difficulties; please check status later";	return &mt("Having technical difficulties; please check status later");
}	}
if ($status == $res->NOTHING_SET) {	if ($status == $res->NOTHING_SET) {
return "Not currently assigned.";	return &mt("Not currently assigned.");
}	}
if ($status == $res->OPEN_LATER) {	if ($status == $res->OPEN_LATER) {
return "Open " . timeToHumanString($res->opendate($part));	return "Open " . timeToHumanString($res->opendate($part));
}	}
if ($status == $res->OPEN) {	if ($status == $res->OPEN) {
if ($res->duedate($part)) {	if ($res->duedate($part)) {
return "Due " . timeToHumanString($res->duedate($part));	return &mt("Due")." " .timeToHumanString($res->duedate($part));
} else {	} else {
return "Open, no due date";	return &mt("Open, no due date");
}	}
}	}
if ($status == $res->PAST_DUE_ANSWER_LATER) {	if ($status == $res->PAST_DUE_ANSWER_LATER) {
return "Answer open " . timeToHumanString($res->answerdate($part));	return &mt("Answer open")." " . timeToHumanString($res->answerdate($part));
}	}
if ($status == $res->PAST_DUE_NO_ANSWER) {	if ($status == $res->PAST_DUE_NO_ANSWER) {
return "Was due " . timeToHumanString($res->duedate($part));	return &mt("Was due")." " . timeToHumanString($res->duedate($part));
}	}
if ($status == $res->ANSWER_OPEN) {	if ($status == $res->ANSWER_OPEN \|\| $status == $res->PARTIALLY_CORRECT) {
return "Answer available";	return &mt("Answer available");
}	}
if ($status == $res->EXCUSED) {	if ($status == $res->EXCUSED) {
return "Excused by instructor";	return &mt("Excused by instructor");
}	}
if ($status == $res->ATTEMPTED) {	if ($status == $res->ATTEMPTED) {
return "Answer submitted, not yet graded.";	return &mt("Answer submitted, not yet graded");
}	}
if ($status == $res->TRIES_LEFT) {	if ($status == $res->TRIES_LEFT) {
my $tries = $res->tries($part);	my $tries = $res->tries($part);
Line 376 sub getDescription {	Line 548 sub getDescription {
$triesString = "<b>$triesString</b>";	$triesString = "<b>$triesString</b>";
}	}
}	}
if ($res->duedate()) {	if ($res->duedate($part)) {
return "Due " . timeToHumanString($res->duedate($part)) .	return &mt("Due")." " . timeToHumanString($res->duedate($part)) .
" $triesString";	" $triesString";
} else {	} else {
return "No due date $triesString";	return &mt("No due date")." $triesString";
}	}
}	}
if ($status == $res->ANSWER_SUBMITTED) {	if ($status == $res->ANSWER_SUBMITTED) {
return 'Answer submitted';	return &mt('Answer submitted');
}	}
}	}

# Convenience function, so others can use it: Is the problem due in less then	# Convenience function, so others can use it: Is the problem due in less then
# 24 hours, and still can be done?	# 24 hours, and still can be done?

sub dueInLessThen24Hours {	sub dueInLessThan24Hours {
my $res = shift;	my $res = shift;
my $part = shift;	my $part = shift;
my $status = $res->status($part);	my $status = $res->status($part);

return ($status == $res->OPEN() \|\|	return ($status == $res->OPEN() \|\|
$status == $res->TRIES_LEFT()) &&	$status == $res->TRIES_LEFT()) &&
$res->duedate() && $res->duedate() < time()+(246060) &&	$res->duedate($part) && $res->duedate($part) < time()+(246060) &&
$res->duedate() > time();	$res->duedate($part) > time();
}	}

# Convenience function, so others can use it: Is there only one try remaining for the	# Convenience function, so others can use it: Is there only one try remaining for the
Line 411 sub lastTry {	Line 583 sub lastTry {
my $tries = $res->tries($part);	my $tries = $res->tries($part);
my $maxtries = $res->maxtries($part);	my $maxtries = $res->maxtries($part);
return $tries && $maxtries && $maxtries > 1 &&	return $tries && $maxtries && $maxtries > 1 &&
$maxtries - $tries == 1 && $res->duedate() &&	$maxtries - $tries == 1 && $res->duedate($part) &&
$res->duedate() > time();	$res->duedate($part) > time();
}	}

# This puts a human-readable name on the ENV variable.	# This puts a human-readable name on the env variable.

sub advancedUser {	sub advancedUser {
return $ENV{'request.role.adv'};	return $env{'request.role.adv'};
}	}


Line 434 sub timeToHumanString {	Line 606 sub timeToHumanString {
my ($time) = @_;	my ($time) = @_;
# zero, '0' and blank are bad times	# zero, '0' and blank are bad times
if (!$time) {	if (!$time) {
return 'never';	return &mt('never');
}	}
	unless (&Apache::lonlocal::current_language()=~/^en/) {
	return &Apache::lonlocal::locallocaltime($time);
	}
my $now = time();	my $now = time();

my @time = localtime($time);	my @time = localtime($time);
Line 504 sub timeToHumanString {	Line 678 sub timeToHumanString {
# HH:MM	# HH:MM
if ( $delta < $day * 5 ) {	if ( $delta < $day * 5 ) {
my $timeStr = strftime("%A, %b %e at %I:%M %P", localtime($time));	my $timeStr = strftime("%A, %b %e at %I:%M %P", localtime($time));
$timeStr =~ s/12:00 am/midnight/;	$timeStr =~ s/12:00 am/00:00/;
$timeStr =~ s/12:00 pm/noon/;	$timeStr =~ s/12:00 pm/noon/;
return ($inPast ? "last " : "next ") .	return ($inPast ? "last " : "this ") .
$timeStr;	$timeStr;
}	}

Line 514 sub timeToHumanString {	Line 688 sub timeToHumanString {
if ( $time[5] == $now[5]) {	if ( $time[5] == $now[5]) {
# Return on Month Day, HH:MM meridian	# Return on Month Day, HH:MM meridian
my $timeStr = strftime("on %A, %b %e at %I:%M %P", localtime($time));	my $timeStr = strftime("on %A, %b %e at %I:%M %P", localtime($time));
$timeStr =~ s/12:00 am/midnight/;	$timeStr =~ s/12:00 am/00:00/;
$timeStr =~ s/12:00 pm/noon/;	$timeStr =~ s/12:00 pm/noon/;
return $timeStr;	return $timeStr;
}	}

# Not this year, so show the year	# Not this year, so show the year
my $timeStr = strftime("on %A, %b %e %G at %I:%M %P", localtime($time));	my $timeStr = strftime("on %A, %b %e %Y at %I:%M %P", localtime($time));
$timeStr =~ s/12:00 am/midnight/;	$timeStr =~ s/12:00 am/00:00/;
$timeStr =~ s/12:00 pm/noon/;	$timeStr =~ s/12:00 pm/noon/;
return $timeStr;	return $timeStr;
}	}
Line 660 can't close or open folders when this is	Line 834 can't close or open folders when this is

=back	=back

=item B<Apache::lonnavmaps::communication_status>:	=item * B<Apache::lonnavmaps::communication_status>:

Whether there is discussion on the resource, email for the user, or	Whether there is discussion on the resource, email for the user, or
(lumped in here) perl errors in the execution of the problem. This is	(lumped in here) perl errors in the execution of the problem. This is
the second column in the main nav map.	the second column in the main nav map.

=item B<Apache::lonnavmaps::quick_status>:	=item * B<Apache::lonnavmaps::quick_status>:

An icon for the status of a problem, with five possible states:	An icon for the status of a problem, with five possible states:
Correct, incorrect, open, awaiting grading (for a problem where the	Correct, incorrect, open, awaiting grading (for a problem where the
Line 674 computer's grade is suppressed, or the c	Line 848 computer's grade is suppressed, or the c
essay problem), or none (not open yet, not a problem). The	essay problem), or none (not open yet, not a problem). The
third column of the standard navmap.	third column of the standard navmap.

=item B<Apache::lonnavmaps::long_status>:	=item * B<Apache::lonnavmaps::long_status>:

A text readout of the details of the current status of the problem,	A text readout of the details of the current status of the problem,
such as "Due in 22 hours". The fourth column of the standard navmap.	such as "Due in 22 hours". The fourth column of the standard navmap.

	=item * B<Apache::lonnavmaps::part_status_summary>:

	A text readout summarizing the status of the problem. If it is a
	single part problem, will display "Correct", "Incorrect",
	"Not yet open", "Open", "Attempted", or "Error". If there are
	multiple parts, this will output a string that in HTML will show a
	status of how many parts are in each status, in color coding, trying
	to match the colors of the icons within reason.

	Note this only makes sense if you are I<not> showing parts. If
	C<showParts> is true (see below), this column will not output
	anything.

=back	=back

If you add any others please be sure to document them here.	If you add any others please be sure to document them here.
Line 706 automatically.	Line 893 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
use that to just render a certain part of the course, if you like. If	use that to just render a certain part of the course, if you like. If
one is not passed, the renderer will attempt to construct one from	one is not passed, the renderer will attempt to construct one from
ENV{'form.filter'} and ENV{'form.condition'} information, plus the	env{'form.filter'} and env{'form.condition'} information, plus the
'iterator_map' parameter if any.	'iterator_map' parameter if any.

=item * B<iterator_map>: default: not used	=item * B<iterator_map>: default: not used
Line 722 instruct the renderer to render only a p	Line 909 instruct the renderer to render only a p
the source of the map you want to process, like	the source of the map you want to process, like
'/res/103/jerf/navmap.course.sequence'.	'/res/103/jerf/navmap.course.sequence'.

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

A reference to a navmap, used only if an iterator is not passed in. If	A reference to a navmap, used only if an iterator is not passed in. If
this is necessary to make an iterator but it is not passed in, a new	this is necessary to make an iterator but it is not passed in, a new
one will be constructed based on ENV info. This is useful to do basic	one will be constructed based on env info. This is useful to do basic
error checking before passing it off to render.	error checking before passing it off to render.

=item * B<r>: default: must be passed in	=item * B<r>: default: must be passed in
Line 752 then only one line will be displayed for	Line 939 then only one line will be displayed for
all parts will always be displayed. If showParts is 0, this is	all parts will always be displayed. If showParts is 0, this is
ignored.	ignored.

=item * B<jumpCount>: default: determined from %ENV	=item * B<jumpCount>: default: determined from %env

A string identifying the URL to place the anchor 'curloc' at.	A string identifying the URL to place the anchor 'curloc' at.
It is the responsibility of the renderer user to	It is the responsibility of the renderer user to
ensure that the #curloc is in the URL. By default, determined through	ensure that the #curloc is in the URL. By default, determined through
the use of the ENV{} 'jump' information, and should normally "just	the use of the env{} 'jump' information, and should normally "just
work" correctly.	work" correctly.

=item * B<here>: default: empty string	=item * B<here>: default: empty string
Line 785 are allowing the user to open and close	Line 972 are allowing the user to open and close

Describes the currently-open row number to cause the browser to jump	Describes the currently-open row number to cause the browser to jump
to, because the user just opened that folder. By default, pulled from	to, because the user just opened that folder. By default, pulled from
the Jump information in the ENV{'form.*'}.	the Jump information in the env{'form.*'}.

=item * B<printKey>: default: false	=item * B<printKey>: default: false

Line 846 sub resource { return 0; }	Line 1033 sub resource { return 0; }
sub communication_status { return 1; }	sub communication_status { return 1; }
sub quick_status { return 2; }	sub quick_status { return 2; }
sub long_status { return 3; }	sub long_status { return 3; }
	sub part_status_summary { return 4; }
# Data for render_resource

sub render_resource {	sub render_resource {
my ($resource, $part, $params) = @_;	my ($resource, $part, $params) = @_;
Line 855 sub render_resource {	Line 1041 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"};

	# The URL part is not escaped at this point, but the symb is...
	# The stuff to the left of the ? must have ' replaced by \' since
	# it will be quoted with ' in the href.

	my ($left,$right) = split(/\?/, $link);
	$left =~ s/'/\\'/g;
	$link = $left.'?'.$right;

my $src = $resource->src();	my $src = $resource->src();
my $it = $params->{"iterator"};	my $it = $params->{"iterator"};
my $filter = $it->{FILTER};	my $filter = $it->{FILTER};

my $title = $resource->compTitle();	my $title = $resource->compTitle();
if ($src =~ /^\/uploaded\//) {
$nonLinkedText=$title;
$title = '';
}
my $partLabel = "";	my $partLabel = "";
my $newBranchText = "";	my $newBranchText = "";
	my $location=&Apache::loncommon::lonhttpdurl("/adm/lonIcons");
# If this is a new branch, label it so	# If this is a new branch, label it so
if ($params->{'isNewBranch'}) {	if ($params->{'isNewBranch'}) {
$newBranchText = "<img src='/adm/lonIcons/branch.gif' border='0' />";	$newBranchText = "<img src='$location/branch.gif' border='0' alt='Branch' />";
}	}

# links to open and close the folder	# links to open and close the folder


my $linkopen = "<a href='$link'>";	my $linkopen = "<a href='$link'>";


my $linkclose = "</a>";	my $linkclose = "</a>";

# Default icon: unknown page	# Default icon: unknown page
my $icon = "<img src='/adm/lonIcons/unknown.gif' alt='' border='0' />";	my $icon = "<img src='$location/unknown.gif' alt='' border='0' alt='  ' ' />";

if ($resource->is_problem()) {	if ($resource->is_problem()) {
if ($part eq '0' \|\| $params->{'condensed'}) {	if ($part eq '0' \|\| $params->{'condensed'}) {
$icon = '<img src="/adm/lonIcons/problem.gif" alt="" border="0" />';	$icon ='<img src="'.$location.'/problem.gif" alt="  " border="0" />';
} else {	} else {
$icon = $params->{'indentString'};	$icon = $params->{'indentString'};
}	}
} else {	} else {
my $curfext= (split (/\./,$resource->src))[-1];	$icon = "<img src='".&Apache::loncommon::icon($resource->src)."' alt='  ' border='0' />";
my $embstyle = &Apache::loncommon::fileembstyle($curfext);
# The unless conditional that follows is a bit of overkill
if (!(!defined($embstyle) \|\| $embstyle eq 'unk' \|\| $embstyle eq 'hdn')) {
$icon = "<img src='/adm/lonIcons/$curfext.gif' alt='' border='0' />";
}
}	}

# Display the correct map icon to open or shut map	# Display the correct map icon to open or shut map
Line 906 sub render_resource {	Line 1097 sub render_resource {

if (!$params->{'resource_no_folder_link'}) {	if (!$params->{'resource_no_folder_link'}) {
$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';	$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') . '.gif';
$icon = "<img src='/adm/lonIcons/$icon' alt='' border='0' />";	$icon = "<img src='$location/$icon' alt='".
	($nowOpen ? 'Open Folder' : 'Close Folder')."' border='0' />";

$linkopen = "<a href='" . $params->{'url'} . '?' .	$linkopen = "<a href='" . $params->{'url'} . '?' .
$params->{'queryString'} . '&filter=';	$params->{'queryString'} . '&filter=';
Line 919 sub render_resource {	Line 1111 sub render_resource {
'&jump=' .	'&jump=' .
&Apache::lonnet::escape($resource->symb()) .	&Apache::lonnet::escape($resource->symb()) .
"&folderManip=1'>";	"&folderManip=1'>";

} else {	} else {
# Don't allow users to manipulate folder	# Don't allow users to manipulate folder
$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') .	$icon = "navmap.$folderType." . ($nowOpen ? 'closed' : 'open') .
'.nomanip.gif';	'.nomanip.gif';
$icon = "<img src='/adm/lonIcons/$icon' alt='' border='0' />";	$icon = "<img src='$location/$icon' alt='".
	($nowOpen ? 'Open Folder' : 'Close Folder')."' border='0' />";

$linkopen = "";	$linkopen = "";
$linkclose = "";	$linkclose = "";
Line 946 sub render_resource {	Line 1140 sub render_resource {
}	}

# Decide what to display	# Decide what to display

$result .= "$newBranchText$linkopen$icon$linkclose";	$result .= "$newBranchText$linkopen$icon$linkclose";

my $curMarkerBegin = '';	my $curMarkerBegin = '';
Line 961 sub render_resource {	Line 1156 sub render_resource {

if ($resource->is_problem() && $part ne '0' &&	if ($resource->is_problem() && $part ne '0' &&
!$params->{'condensed'}) {	!$params->{'condensed'}) {
$partLabel = " (Part $part)";	my $displaypart=$resource->part_display($part);
	$partLabel = " (Part: $displaypart)";
	if ($link!~/\#/) { $link.='#'.&Apache::lonnet::escape($part); }
$title = "";	$title = "";
}	}

Line 969 sub render_resource {	Line 1166 sub render_resource {
$nonLinkedText .= ' (' . $resource->countParts() . ' parts)';	$nonLinkedText .= ' (' . $resource->countParts() . ' parts)';
}	}

if (!$params->{'resource_nolink'} && $src !~ /^\/uploaded\// &&	my $target;
!$resource->is_sequence()) {	if ($env{'environment.remotenavmap'} eq 'on') {
$result .= " $curMarkerBegin<a href='$link'>$title$partLabel</a>$curMarkerEnd $nonLinkedText</td>";	$target=' target="loncapaclient" ';
	}
	if (!$params->{'resource_nolink'} && !$resource->is_sequence() && !$resource->is_empty_sequence) {
	$result .= " $curMarkerBegin<a $target href='$link'>$title$partLabel</a>$curMarkerEnd $nonLinkedText</td>";
} else {	} else {
$result .= " $curMarkerBegin$title$partLabel$curMarkerEnd $nonLinkedText</td>";	$result .= " $curMarkerBegin$title$partLabel$curMarkerEnd $nonLinkedText</td>";
}	}
Line 984 sub render_communication_status {	Line 1184 sub render_communication_status {
my $discussionHTML = ""; my $feedbackHTML = ""; my $errorHTML = "";	my $discussionHTML = ""; my $feedbackHTML = ""; my $errorHTML = "";

my $link = $params->{"resourceLink"};	my $link = $params->{"resourceLink"};
my $linkopen = "<a href='$link'>";	my $target;
	if ($env{'environment.remotenavmap'} eq 'on') {
	$target=' target="loncapaclient" ';
	}
	my $linkopen = "<a $target href='$link'>";
my $linkclose = "</a>";	my $linkclose = "</a>";
	my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");
if ($resource->hasDiscussion()) {	if ($resource->hasDiscussion()) {
$discussionHTML = $linkopen .	$discussionHTML = $linkopen .
'<img border="0" src="/adm/lonMisc/chat.gif" />' .	'<img border="0" src="'.$location.'/chat.gif" />' .
$linkclose;	$linkclose;
}	}

Line 997 sub render_communication_status {	Line 1201 sub render_communication_status {
my $feedback = $resource->getFeedback();	my $feedback = $resource->getFeedback();
foreach (split(/\,/, $feedback)) {	foreach (split(/\,/, $feedback)) {
if ($_) {	if ($_) {
$feedbackHTML .= ' <a href="/adm/email?display='	$feedbackHTML .= ' <a '.$target.' href="/adm/email?display='
. &Apache::lonnet::escape($_) . '">'	. &Apache::lonnet::escape($_) . '">'
. '<img src="/adm/lonMisc/feedback.gif" '	. '<img src="'.$location.'/feedback.gif" '
. 'border="0" /></a>';	. 'border="0" /></a>';
}	}
}	}
Line 1007 sub render_communication_status {	Line 1211 sub render_communication_status {

if ($resource->getErrors()) {	if ($resource->getErrors()) {
my $errors = $resource->getErrors();	my $errors = $resource->getErrors();
	my $errorcount = 0;
foreach (split(/,/, $errors)) {	foreach (split(/,/, $errors)) {
	last if ($errorcount>=10); # Only output 10 bombs maximum
if ($_) {	if ($_) {
$errorHTML .= ' <a href="/adm/email?display='	$errorcount++;
	$errorHTML .= ' <a '.$target.' href="/adm/email?display='
. &Apache::lonnet::escape($_) . '">'	. &Apache::lonnet::escape($_) . '">'
. '<img src="/adm/lonMisc/bomb.gif" '	. '<img src="'.$location.'/bomb.gif" '
. 'border="0" /></a>';	. 'border="0" /></a>';
}	}
}	}
Line 1031 sub render_quick_status {	Line 1238 sub render_quick_status {
$params->{'multipart'} && $part eq "0";	$params->{'multipart'} && $part eq "0";

my $link = $params->{"resourceLink"};	my $link = $params->{"resourceLink"};
my $linkopen = "<a href='$link'>";	my $target;
	if ($env{'environment.remotenavmap'} eq 'on') {
	$target=' target="loncapaclient" ';
	}
	my $linkopen = "<a $target href='$link'>";
my $linkclose = "</a>";	my $linkclose = "</a>";

if ($resource->is_problem() &&	if ($resource->is_problem() &&
!$firstDisplayed) {	!$firstDisplayed) {
my $icon = $statusIconMap{$resource->status($part)};
	my $icon = $statusIconMap{$resource->simpleStatus($part)};
my $alt = $iconAltTags{$icon};	my $alt = $iconAltTags{$icon};
if ($icon) {	if ($icon) {
$result .= "<td width='30' valign='center' width='50' align='right'>$linkopen<img width='25' height='25' src='/adm/lonIcons/$icon' border='0' alt='$alt' />$linkclose</td>\n";	my $location=
	&Apache::loncommon::lonhttpdurl("/adm/lonIcons/$icon");
	$result .= "<td width='30' valign='center' width='50' align='right'>$linkopen<img width='25' height='25' src='$location' border='0' alt='$alt' />$linkclose</td>\n";
} else {	} else {
$result .= "<td width='30'> </td>\n";	$result .= "<td width='30'> </td>\n";
}	}
Line 1059 sub render_long_status {	Line 1273 sub render_long_status {
if ($resource->is_problem()) {	if ($resource->is_problem()) {
$color = $colormap{$resource->status};	$color = $colormap{$resource->status};

if (dueInLessThen24Hours($resource, $part) \|\|	if (dueInLessThan24Hours($resource, $part) \|\|
lastTry($resource, $part)) {	lastTry($resource, $part)) {
$color = $hurryUpColor;	$color = $hurryUpColor;
}	}
Line 1085 sub render_long_status {	Line 1299 sub render_long_status {
return $result;	return $result;
}	}

	# Colors obtained by taking the icons, matching the colors, and
	# possibly reducing the Value (HSV) of the color, if it's too bright
	# for text, generally by one third or so.
	my %statusColors =
	(
	$resObj->CLOSED => '#000000',
	$resObj->OPEN => '#998b13',
	$resObj->CORRECT => '#26933f',
	$resObj->INCORRECT => '#c48207',
	$resObj->ATTEMPTED => '#a87510',
	$resObj->ERROR => '#000000'
	);
	my %statusStrings =
	(
	$resObj->CLOSED => 'Not yet open',
	$resObj->OPEN => 'Open',
	$resObj->CORRECT => 'Correct',
	$resObj->INCORRECT => 'Incorrect',
	$resObj->ATTEMPTED => 'Attempted',
	$resObj->ERROR => 'Network Error'
	);
	my @statuses = ($resObj->CORRECT, $resObj->ATTEMPTED, $resObj->INCORRECT, $resObj->OPEN, $resObj->CLOSED, $resObj->ERROR);

	use Data::Dumper;
	sub render_parts_summary_status {
	my ($resource, $part, $params) = @_;
	if (!$resource->is_problem() && !$resource->contains_problem) { return '<td></td>'; }
	if ($params->{showParts}) {
	return '<td></td>';
	}

	my $td = "<td align='right'>\n";
	my $endtd = "</td>\n";
	my @probs;

	if ($resource->contains_problem) {
	@probs=$resource->retrieveResources($resource,sub { $_[0]->is_problem() },1,0);
	} else {
	@probs=($resource);
	}
	my $return;
	my %overallstatus;
	my $totalParts;
	foreach my $resource (@probs) {
	# If there is a single part, just show the simple status
	if ($resource->singlepart()) {
	my $status = $resource->simpleStatus(${$resource->parts}[0]);
	$overallstatus{$status}++;
	$totalParts++;
	next;
	}
	# Now we can be sure the $part doesn't really matter.
	my $statusCount = $resource->simpleStatusCount();
	my @counts;
	foreach my $status (@statuses) {
	# decouple display order from the simpleStatusCount order
	my $slot = Apache::lonnavmaps::resource::statusToSlot($status);
	if ($statusCount->[$slot]) {
	$overallstatus{$status}+=$statusCount->[$slot];
	$totalParts+=$statusCount->[$slot];
	}
	}
	}
	$return.= $td . $totalParts . ' parts: ';
	foreach my $status (@statuses) {
	if ($overallstatus{$status}) {
	$return.="<font color='" . $statusColors{$status} .
	"'>" . $overallstatus{$status} . ' '
	. $statusStrings{$status} . "</font>";
	}
	}
	$return.= $endtd;
	return $return;
	}

my @preparedColumns = (\&render_resource, \&render_communication_status,	my @preparedColumns = (\&render_resource, \&render_communication_status,
\&render_quick_status, \&render_long_status);	\&render_quick_status, \&render_long_status,
	\&render_parts_summary_status);

sub setDefault {	sub setDefault {
my ($val, $default) = @_;	my ($val, $default) = @_;
Line 1094 sub setDefault {	Line 1384 sub setDefault {
return $val;	return $val;
}	}

	sub cmp_title {
	my ($atitle,$btitle) = (lc($_[0]->compTitle),lc($_[1]->compTitle));
	$atitle=~s/^\s*//;
	$btitle=~s/^\s*//;
	return $atitle cmp $btitle;
	}

sub render {	sub render {
my $args = shift;	my $args = shift;
&Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});	&Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
my $result = '';	my $result = '';

# Configure the renderer.	# Configure the renderer.
my $cols = $args->{'cols'};	my $cols = $args->{'cols'};
if (!defined($cols)) {	if (!defined($cols)) {
Line 1116 sub render {	Line 1412 sub render {
my $jump = $args->{'jump'};	my $jump = $args->{'jump'};
my $here = $args->{'here'};	my $here = $args->{'here'};
my $suppressNavmap = setDefault($args->{'suppressNavmap'}, 0);	my $suppressNavmap = setDefault($args->{'suppressNavmap'}, 0);
	my $closeAllPages = setDefault($args->{'closeAllPages'}, 0);
my $currentJumpDelta = 2; # change this to change how many resources are displayed	my $currentJumpDelta = 2; # change this to change how many resources are displayed
# before the current resource when using #current	# before the current resource when using #current

Line 1125 sub render {	Line 1422 sub render {
# marker	# marker
my $filterHash = {};	my $filterHash = {};
# Figure out what we're not displaying	# Figure out what we're not displaying
foreach (split(/\,/, $ENV{"form.filter"})) {	foreach (split(/\,/, $env{"form.filter"})) {
if ($_) {	if ($_) {
$filterHash->{$_} = "1";	$filterHash->{$_} = "1";
}	}
Line 1145 sub render {	Line 1442 sub render {
}	}

my $condition = 0;	my $condition = 0;
if ($ENV{'form.condition'}) {	if ($env{'form.condition'}) {
$condition = 1;	$condition = 1;
}	}

if (!$ENV{'form.folderManip'} && !defined($args->{'iterator'})) {	if (!$env{'form.folderManip'} && !defined($args->{'iterator'})) {
# Step 1: Check to see if we have a navmap	# Step 1: Check to see if we have a navmap
if (!defined($navmap)) {	if (!defined($navmap)) {
$navmap = Apache::lonnavmaps::navmap->new();	$navmap = Apache::lonnavmaps::navmap->new();
Line 1159 sub render {	Line 1456 sub render {
# Step two: Locate what kind of here marker is necessary	# Step two: Locate what kind of here marker is necessary
# Determine where the "here" marker is and where the screen jumps to.	# Determine where the "here" marker is and where the screen jumps to.

if ($ENV{'form.postsymb'}) {	if ($env{'form.postsymb'} ne '') {
$here = $jump = $ENV{'form.postsymb'};	$here = $jump = &Apache::lonnet::symbclean($env{'form.postsymb'});
} elsif ($ENV{'form.postdata'}) {	} elsif ($env{'form.postdata'} ne '') {
# couldn't find a symb, is there a URL?	# couldn't find a symb, is there a URL?
my $currenturl = $ENV{'form.postdata'};	my $currenturl = $env{'form.postdata'};
#$currenturl=~s/^http\:\/\///;	#$currenturl=~s/^http\:\/\///;
#$currenturl=~s/^[^\/]+//;	#$currenturl=~s/^[^\/]+//;

$here = $jump = &Apache::lonnet::symbread($currenturl);	$here = $jump = &Apache::lonnet::symbread($currenturl);
}	}
	if ($here eq '') {
	my $last;
	if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
	&GDBM_READER(),0640)) {
	$last=$hash{'last_known'};
	untie(%hash);
	}
	if ($last) { $here = $jump = $last; }
	}

# Step three: Ensure the folders are open	# Step three: Ensure the folders are open
my $mapIterator = $navmap->getIterator(undef, undef, undef, 1);	my $mapIterator = $navmap->getIterator(undef, undef, undef, 1);
Line 1178 sub render {	Line 1484 sub render {
# We only need to do this if we need to open the maps to show the	# We only need to do this if we need to open the maps to show the
# current position. This will change the counter so we can't count	# current position. This will change the counter so we can't count
# for the jump marker with this loop.	# for the jump marker with this loop.
while (($curRes = $mapIterator->next()) && !$found) {	while ($here && ($curRes = $mapIterator->next()) && !$found) {
if (ref($curRes) && $curRes->symb() eq $here) {	if (ref($curRes) && $curRes->symb() eq $here) {
my $mapStack = $mapIterator->getStack();	my $mapStack = $mapIterator->getStack();

Line 1195 sub render {	Line 1501 sub render {
}	}
}	}

if ( !defined($args->{'iterator'}) && $ENV{'form.folderManip'} ) { # we came from a user's manipulation of the nav page	if ( !defined($args->{'iterator'}) && $env{'form.folderManip'} ) { # we came from a user's manipulation of the nav page
# If this is a click on a folder or something, we want to preserve the "here"	# If this is a click on a folder or something, we want to preserve the "here"
# from the querystring, and get the new "jump" marker	# from the querystring, and get the new "jump" marker
$here = $ENV{'form.here'};	$here = $env{'form.here'};
$jump = $ENV{'form.jump'};	$jump = $env{'form.jump'};
}	}

my $it = $args->{'iterator'};	my $it = $args->{'iterator'};
if (!defined($it)) {	if (!defined($it)) {
# Construct a default iterator based on $ENV{'form.'} information	# Construct a default iterator based on $env{'form.'} information

# Step 1: Check to see if we have a navmap	# Step 1: Check to see if we have a navmap
if (!defined($navmap)) {	if (!defined($navmap)) {
Line 1224 sub render {	Line 1530 sub render {
$args->{'iterator'} = $it = $navmap->getIterator(undef, undef, $filterHash, $condition);	$args->{'iterator'} = $it = $navmap->getIterator(undef, undef, $filterHash, $condition);
}	}
}	}

# (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 1254 sub render {	Line 1560 sub render {
my $printKey = $args->{'printKey'};	my $printKey = $args->{'printKey'};
my $printCloseAll = $args->{'printCloseAll'};	my $printCloseAll = $args->{'printCloseAll'};
if (!defined($printCloseAll)) { $printCloseAll = 1; }	if (!defined($printCloseAll)) { $printCloseAll = 1; }

# Print key?	# Print key?
if ($printKey) {	if ($printKey) {
$result .= '<table border="0" cellpadding="2" cellspacing="0">';	$result .= '<table border="0" cellpadding="2" cellspacing="0">';
my $date=localtime;	my $date=localtime;
$result.='<tr><td align="right" valign="bottom">Key:  </td>';	$result.='<tr><td align="right" valign="bottom">Key:  </td>';
	my $location=&Apache::loncommon::lonhttpdurl("/adm/lonMisc");
if ($navmap->{LAST_CHECK}) {	if ($navmap->{LAST_CHECK}) {
$result .=	$result .=
'<img src="/adm/lonMisc/chat.gif"> New discussion since '.	'<img src="'.$location.'/chat.gif"> '.&mt('New discussion since').' '.
strftime("%A, %b %e at %I:%M %P", localtime($navmap->{LAST_CHECK})).	strftime("%A, %b %e at %I:%M %P", localtime($navmap->{LAST_CHECK})).
'</td><td align="center" valign="bottom">  '.	'</td><td align="center" valign="bottom">  '.
'<img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>'.	'<img src="'.$location.'/feedback.gif"> '.&mt('New message (click to open)').'<p>'.
'</td>';	'</td>';
} else {	} else {
$result .= '<td align="center" valign="bottom">  '.	$result .= '<td align="center" valign="bottom">  '.
'<img src="/adm/lonMisc/chat.gif"> Discussions</td><td align="center" valign="bottom">'.	'<img src="'.$location.'/chat.gif"> '.&mt('Discussions').'</td><td align="center" valign="bottom">'.
'  <img src="/adm/lonMisc/feedback.gif"> New message (click to open)'.	'  <img src="'.$location.'/feedback.gif"> '.&mt('New message (click to open)').
'</td>';	'</td>';
}	}

Line 1278 sub render {	Line 1585 sub render {
}	}

if ($printCloseAll && !$args->{'resource_no_folder_link'}) {	if ($printCloseAll && !$args->{'resource_no_folder_link'}) {
	my ($link,$text);
if ($condition) {	if ($condition) {
$result.="<a href=\"navmaps?condition=0&filter=&$queryString" .	$link='"navmaps?condition=0&filter=&'.$queryString.
"&here=" . Apache::lonnet::escape($here) .	'&here='.&Apache::lonnet::escape($here).'"';
"\">Close All Folders</a>";	$text='Close All Folders';
	} else {
	$link='"navmaps?condition=1&filter=&'.$queryString.
	'&here='.&Apache::lonnet::escape($here).'"';
	$text='Open All Folders';
	}
	if ($args->{'caller'} eq 'navmapsdisplay') {
	&add_linkitem($args->{'linkitems'},'changefolder',
	'location.href='.$link,$text);
	} else {
	$result.='<a href='.$link.'>'.&mt($text).'</a>';
	}
	$result .= "\n";
	}

	# Check for any unread discussions in all resources.
	if ($args->{'caller'} eq 'navmapsdisplay') {
	&add_linkitem($args->{'linkitems'},'clearbubbles',
	'document.clearbubbles.submit()',
	'Mark all posts read');
	my $time=time;
	$result .= (<<END);
	<form name="clearbubbles" method="post" action="/adm/feedback">
	<input type="hidden" name="navurl" value="$ENV{'QUERY_STRING'}" />
	<input type="hidden" name="navtime" value="$time" />
	END
	if ($args->{'sort'} eq 'discussion') {
	my $totdisc = 0;
	my $haveDisc = '';
	my @allres=$navmap->retrieveResources();
	foreach my $resource (@allres) {
	if ($resource->hasDiscussion()) {
	$haveDisc .= $resource->wrap_symb().':';
	$totdisc ++;
	}
	}
	if ($totdisc > 0) {
	$haveDisc =~ s/:$//;
	$result .= (<<END);
	<input type="hidden" name="navmaps" value="$haveDisc" />
	</form>
	END
	}
	}
	$result.='</form>';
	}

	if ($args->{'caller'} eq 'navmapsdisplay') {
	$result .= '<table><tr><td>'.
	&Apache::loncommon::help_open_menu('','Navigation Screen','Navigation_Screen','',undef,'RAT').'</td>';
	if ($env{'environment.remotenavmap'} ne 'on') {
	$result .= '<td> </td>';
} else {	} else {
$result.="<a href=\"navmaps?condition=1&filter=&$queryString" .	$result .= '</tr><tr>';
"&here=" . Apache::lonnet::escape($here) .
"\">Open All Folders</a>";
}	}
$result .= "<br /><br />\n";	$result.=&show_linkitems($args->{'linkitems'});
}	if ($args->{'sort_html'}) {
	if ($env{'environment.remotenavmap'} ne 'on') {
	$result.='<td> </td><td> </td><td> </td>'.
	'<td align="right">'.$args->{'sort_html'}.'</td></tr>';
	} else {
	$result.='</tr><tr><td align="left"><br />'.
	$args->{'sort_html'}.'</td></tr>';
	}
	}
	$result .= '</table>';
	} elsif ($args->{'sort_html'}) {
	$result.=$args->{'sort_html'};
	}

	$result .= "<br />\n";
if ($r) {	if ($r) {
$r->print($result);	$r->print($result);
$r->rflush();	$r->rflush();
Line 1311 sub render {	Line 1681 sub render {
$args->{'indentLevel'} = 0;	$args->{'indentLevel'} = 0;
$args->{'isNewBranch'} = 0;	$args->{'isNewBranch'} = 0;
$args->{'condensed'} = 0;	$args->{'condensed'} = 0;
$args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='/adm/lonIcons/whitespace1.gif' width='25' height='1' alt='' border='0' />");	my $location=
	&Apache::loncommon::lonhttpdurl("/adm/lonIcons/whitespace1.gif");
	$args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='$location' width='25' height='1' alt='  ' border='0' />");
$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. Use DFS for speed,
Line 1361 sub render {	Line 1733 sub render {
$args->{'here'} = $here;	$args->{'here'} = $here;

$args->{'indentLevel'} = -1; # first BEGIN_MAP takes this to 0	$args->{'indentLevel'} = -1; # first BEGIN_MAP takes this to 0
while ($curRes = $it->next()) {	my @resources;
	my $code='';# sub { !(shift->is_map();) };
	if ($args->{'sort'} eq 'title') {
	my $oldFilterFunc = $filterFunc;
	my $filterFunc=
	sub {
	my ($res)=@_;
	if ($res->is_map()) { return 0;}
	return &$oldFilterFunc($res);
	};
	@resources=$navmap->retrieveResources(undef,$filterFunc);
	@resources= sort { &cmp_title($a,$b) } @resources;
	} elsif ($args->{'sort'} eq 'duedate') {
	my $oldFilterFunc = $filterFunc;
	my $filterFunc=
	sub {
	my ($res)=@_;
	if (!$res->is_problem()) { return 0;}
	return &$oldFilterFunc($res);
	};
	@resources=$navmap->retrieveResources(undef,$filterFunc);
	@resources= sort {
	if ($a->duedate ne $b->duedate) {
	return $a->duedate cmp $b->duedate;
	}
	my $value=&cmp_title($a,$b);
	return $value;
	} @resources;
	} elsif ($args->{'sort'} eq 'discussion') {
	my $oldFilterFunc = $filterFunc;
	my $filterFunc=
	sub {
	my ($res)=@_;
	if (!$res->hasDiscussion() &&
	!$res->getFeedback() &&
	!$res->getErrors()) { return 0;}
	return &$oldFilterFunc($res);
	};
	@resources=$navmap->retrieveResources(undef,$filterFunc);
	@resources= sort { &cmp_title($a,$b) } @resources;
	} else {
	#unknow sort mechanism or default
	undef($args->{'sort'});
	}


	while (1) {
	if ($args->{'sort'}) {
	$curRes = shift(@resources);
	} else {
	$curRes = $it->next($closeAllPages);
	}
	if (!$curRes) { last; }

# Maintain indentation level.	# Maintain indentation level.
if ($curRes == $it->BEGIN_MAP() \|\|	if ($curRes == $it->BEGIN_MAP() \|\|
$curRes == $it->BEGIN_BRANCH() ) {	$curRes == $it->BEGIN_BRANCH() ) {
Line 1464 sub render {	Line 1889 sub render {
# Add part 0 so we display it correctly.	# Add part 0 so we display it correctly.
unshift @parts, '0';	unshift @parts, '0';
}	}

	{
	my ($src,$symb,$anchor,$stack);
	if ($args->{'sort'}) {
	my $it = $navmap->getIterator(undef, undef, undef, 1);
	while ( my $res=$it->next()) {
	if (ref($res) &&
	$res->symb() eq $curRes->symb()) { last; }
	}
	$stack=$it->getStack();
	} else {
	$stack=$it->getStack();
	}
	($src,$symb,$anchor)=getLinkForResource($stack);
	if (defined($anchor)) { $anchor='#'.$anchor; }
	my $srcHasQuestion = $src =~ /\?/;
	$args->{"resourceLink"} = $src.
	($srcHasQuestion?'&':'?') .
	'symb=' . &Apache::lonnet::escape($symb).$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.
foreach my $part (@parts) {	foreach my $part (@parts) {
Line 1475 sub render {	Line 1919 sub render {

# Set up some data about the parts that the cols might want	# Set up some data about the parts that the cols might want
my $filter = $it->{FILTER};	my $filter = $it->{FILTER};
my $stack = $it->getStack();
my $src = getLinkForResource($stack);

my $srcHasQuestion = $src =~ /\?/;
$args->{"resourceLink"} = $src.
($srcHasQuestion?'&':'?') .
'symb=' . &Apache::lonnet::escape($curRes->symb());

# Now, display each column.	# Now, display each column.
foreach my $col (@$cols) {	foreach my $col (@$cols) {
my $colHTML = '';	my $colHTML = '';
Line 1518 sub render {	Line 1955 sub render {
# If we have the connection, make sure the user is still connected	# If we have the connection, make sure the user is still connected
my $c = $r->connection;	my $c = $r->connection;
if ($c->aborted()) {	if ($c->aborted()) {
Apache::lonnet::logthis("navmaps aborted");
# Who cares what we do, nobody will see it anyhow.	# Who cares what we do, nobody will see it anyhow.
return '';	return '';
}	}
Line 1533 sub render {	Line 1969 sub render {
# it's quite likely this might fix other browsers, too, and	# it's quite likely this might fix other browsers, too, and
# certainly won't hurt anything.	# certainly won't hurt anything.
if ($displayedJumpMarker) {	if ($displayedJumpMarker) {
$result .= "<script>setTimeout(\"location += '#curloc';\", 0)</script>\n";	$result .= "
	<script>
	if (location.href.indexOf('#curloc')==-1) {
	setTimeout(\"location += '#curloc';\", 0)
	}
	</script>";
}	}

$result .= "</table>";	$result .= "</table>";
Line 1544 sub render {	Line 1985 sub render {
$r->rflush();	$r->rflush();
}	}

if ($mustCloseNavMap) { $navmap->untieHashes(); }	return $result;
	}

	sub add_linkitem {
	my ($linkitems,$name,$cmd,$text)=@_;
	$$linkitems{$name}{'cmd'}=$cmd;
	$$linkitems{$name}{'text'}=&mt($text);
	}

	sub show_linkitems {
	my ($linkitems)=@_;
	my @linkorder = ("blank","launchnav","closenav","firsthomework",
	"everything","uncompleted","changefolder","clearbubbles");

	my $result .= (<<ENDBLOCK);
	<td align="left">
	<script type="text/javascript">
	function changeNavDisplay () {
	var navchoice = document.linkitems.toplink[document.linkitems.toplink.selectedIndex].value;
	ENDBLOCK
	foreach my $link (@linkorder) {
	$result.= "if (navchoice == '$link') {".
	$linkitems->{$link}{'cmd'}."}\n";
	}
	$result.='}
	</script>
	<form name="linkitems" method="post">
	<nobr><select name="toplink">'."\n";
	foreach my $link (@linkorder) {
	if (defined($linkitems->{$link})) {
	if ($linkitems->{$link}{'text'} ne '') {
	$result .= ' <option value="'.$link.'">'.
	$linkitems->{$link}{'text'}."</option>\n";
	}
	}
	}
	$result .= '</select> <input type="button" name="chgnav"
	value="Go" onClick="javascript:changeNavDisplay()" />
	</nobr></form></td>'."\n";

return $result;	return $result;
}	}

Line 1606 successful, or B<undef> if not.	Line 2085 successful, or B<undef> if not.

=back	=back

When you are done with the $navmap object, you I<must> call
$navmap->untieHashes(), or you'll prevent the current user from using that
course until the web server is restarted. (!)

=head2 Methods	=head2 Methods

=over 4	=over 4
Line 1622 See iterator documentation below.	Line 2097 See iterator documentation below.

use strict;	use strict;
use GDBM_File;	use GDBM_File;
	use Apache::lonnet;

sub new {	sub new {
# magic invocation to create a class instance	# magic invocation to create a class instance
Line 1641 sub new {	Line 2117 sub new {

my %navmaphash;	my %navmaphash;
my %parmhash;	my %parmhash;
my $courseFn = $ENV{"request.course.fn"};	my $courseFn = $env{"request.course.fn"};
if (!(tie(%navmaphash, 'GDBM_File', "${courseFn}.db",	if (!(tie(%navmaphash, 'GDBM_File', "${courseFn}.db",
&GDBM_READER(), 0640))) {	&GDBM_READER(), 0640))) {
return undef;	return undef;
Line 1667 sub generate_course_user_opt {	Line 2143 sub generate_course_user_opt {
my $self = shift;	my $self = shift;
if ($self->{COURSE_USER_OPT_GENERATED}) { return; }	if ($self->{COURSE_USER_OPT_GENERATED}) { return; }

my $uname=$ENV{'user.name'};	my $uname=$env{'user.name'};
my $udom=$ENV{'user.domain'};	my $udom=$env{'user.domain'};
my $uhome=$ENV{'user.home'};	my $cid=$env{'request.course.id'};
my $cid=$ENV{'request.course.id'};	my $cdom=$env{'course.'.$cid.'.domain'};
my $chome=$ENV{'course.'.$cid.'.home'};	my $cnum=$env{'course.'.$cid.'.num'};
my ($cdom,$cnum)=split(/\_/,$cid);

my $userprefix=$uname.'_'.$udom.'_';

my %courserdatas; my %useropt; my %courseopt; my %userrdatas;
unless ($uhome eq 'no_host') {
# ------------------------------------------------- Get coursedata (if present)	# ------------------------------------------------- Get coursedata (if present)
unless ((time-$courserdatas{$cid.'.last_cache'})<240) {	my $courseopt=&Apache::lonnet::get_courseresdata($cnum,$cdom);
my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.	# Check for network failure
':resourcedata',$chome);	if (!ref($courseopt)) {
# Check for network failure	if ( $courseopt =~ /no.such.host/i \|\| $courseopt =~ /con_lost/i) {
if ( $reply =~ /no.such.host/i \|\| $reply =~ /con_lost/i) {	$self->{NETWORK_FAILURE} = 1;
$self->{NETWORK_FAILURE} = 1;
} elsif ($reply!~/^error\:/) {
$courserdatas{$cid}=$reply;
$courserdatas{$cid.'.last_cache'}=time;
}
}
foreach (split(/\&/,$courserdatas{$cid})) {
my ($name,$value)=split(/\=/,$_);
$courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
&Apache::lonnet::unescape($value);
}	}
	undef($courseopt);
	}

# --------------------------------------------------- Get userdata (if present)	# --------------------------------------------------- Get userdata (if present)
unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);	my $useropt=&Apache::lonnet::get_userresdata($uname,$udom);
if ($reply!~/^error\:/) {	# Check for network failure
$userrdatas{$uname.'___'.$udom}=$reply;	if (!ref($useropt)) {
$userrdatas{$uname.'___'.$udom.'.last_cache'}=time;	if ( $useropt =~ /no.such.host/i \|\| $useropt =~ /con_lost/i) {
}	$self->{NETWORK_FAILURE} = 1;
# check to see if network failed
elsif ( $reply=~/no.such.host/i \|\| $reply=~/con.*lost/i )
{
$self->{NETWORK_FAILURE} = 1;
}
}
foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
my ($name,$value)=split(/\=/,$_);
$useropt{$userprefix.&Apache::lonnet::unescape($name)}=
&Apache::lonnet::unescape($value);
}	}
$self->{COURSE_OPT} = \%courseopt;	undef($useropt);
$self->{USER_OPT} = \%useropt;
}	}

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

$self->{COURSE_USER_OPT_GENERATED} = 1;	$self->{COURSE_USER_OPT_GENERATED} = 1;

return;	return;
Line 1724 sub generate_course_user_opt {	Line 2180 sub generate_course_user_opt {

sub generate_email_discuss_status {	sub generate_email_discuss_status {
my $self = shift;	my $self = shift;
	my $symb = shift;
if ($self->{EMAIL_DISCUSS_GENERATED}) { return; }	if ($self->{EMAIL_DISCUSS_GENERATED}) { return; }

my $cid=$ENV{'request.course.id'};	my $cid=$env{'request.course.id'};
my ($cdom,$cnum)=split(/\_/,$cid);	my $cdom=$env{'course.'.$cid.'.domain'};
	my $cnum=$env{'course.'.$cid.'.num'};

my %emailstatus = &Apache::lonnet::dump('email_status');	my %emailstatus = &Apache::lonnet::dump('email_status');
my $logoutTime = $emailstatus{'logout'};	my $logoutTime = $emailstatus{'logout'};
my $courseLeaveTime = $emailstatus{'logout_'.$ENV{'request.course.id'}};	my $courseLeaveTime = $emailstatus{'logout_'.$env{'request.course.id'}};
$self->{LAST_CHECK} = (($courseLeaveTime > $logoutTime) ?	$self->{LAST_CHECK} = (($courseLeaveTime > $logoutTime) ?
$courseLeaveTime : $logoutTime);	$courseLeaveTime : $logoutTime);
my %discussiontime = &Apache::lonnet::dump('discussiontimes',	my %discussiontime = &Apache::lonnet::dump('discussiontimes',
$cdom, $cnum);	$cdom, $cnum);
	my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',
	$env{'user.domain'},$env{'user.name'},'lastread');
	my %lastreadtime = ();
	foreach (keys %lastread) {
	my $key = $_;
	$key =~ s/_lastread$//;
	$lastreadtime{$key} = $lastread{$_};
	}

my %feedback=();	my %feedback=();
my %error=();	my %error=();
my $keys = &Apache::lonnet::reply('keys:'.	my @keys = &Apache::lonnet::getkeys('nohist_email',$env{'user.domain'},
$ENV{'user.domain'}.':'.	$env{'user.name'});
$ENV{'user.name'}.':nohist_email',
$ENV{'user.home'});	foreach my $msgid (@keys) {
	if ((!$emailstatus{$msgid}) \|\| ($emailstatus{$msgid} eq 'new')) {
foreach my $msgid (split(/\&/, $keys)) {	my $plain=
$msgid=&Apache::lonnet::unescape($msgid);	&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));
my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));	if ($plain=~/(Error\|Feedback) \[([^\]]+)\]/) {
if ($plain=~/(Error\|Feedback) \[([^\]]+)\]/) {	my ($what,$url)=($1,$2);
my ($what,$url)=($1,$2);
my %status=
&Apache::lonnet::get('email_status',[$msgid]);
if ($status{$msgid}=~/^error\:/) {
$status{$msgid}='';
}

if (($status{$msgid} eq 'new') \|\|
(!$status{$msgid})) {
if ($what eq 'Error') {	if ($what eq 'Error') {
$error{$url}.=','.$msgid;	$error{$url}.=','.$msgid;
} else {	} else {
Line 1765 sub generate_email_discuss_status {	Line 2223 sub generate_email_discuss_status {
}	}
}	}

	#url's of resources that have feedbacks
$self->{FEEDBACK} = \%feedback;	$self->{FEEDBACK} = \%feedback;
$self->{ERROR_MSG} = \%error; # what is this? JB	#or errors
	$self->{ERROR_MSG} = \%error;
$self->{DISCUSSION_TIME} = \%discussiontime;	$self->{DISCUSSION_TIME} = \%discussiontime;
$self->{EMAIL_STATUS} = \%emailstatus;	$self->{EMAIL_STATUS} = \%emailstatus;
	$self->{LAST_READ} = \%lastreadtime;

$self->{EMAIL_DISCUSS_GENERATED} = 1;	$self->{EMAIL_DISCUSS_GENERATED} = 1;
}	}
Line 1778 sub get_user_data {	Line 2239 sub get_user_data {
if ($self->{RETRIEVED_USER_DATA}) { return; }	if ($self->{RETRIEVED_USER_DATA}) { return; }

# Retrieve performance data on problems	# Retrieve performance data on problems
my %student_data = Apache::lonnet::currentdump($ENV{'request.course.id'},	my %student_data = Apache::lonnet::currentdump($env{'request.course.id'},
$ENV{'user.domain'},	$env{'user.domain'},
$ENV{'user.name'});	$env{'user.name'});
$self->{STUDENT_DATA} = \%student_data;	$self->{STUDENT_DATA} = \%student_data;

$self->{RETRIEVED_USER_DATA} = 1;	$self->{RETRIEVED_USER_DATA} = 1;
Line 1805 sub navhash {	Line 2266 sub navhash {
# Checks to see if coursemap is defined, matching test in old lonnavmaps	# Checks to see if coursemap is defined, matching test in old lonnavmaps
sub courseMapDefined {	sub courseMapDefined {
my $self = shift;	my $self = shift;
my $uri = &Apache::lonnet::clutter($ENV{'request.course.uri'});	my $uri = &Apache::lonnet::clutter($env{'request.course.uri'});

my $firstres = $self->navhash("map_start_$uri");	my $firstres = $self->navhash("map_start_$uri");
my $lastres = $self->navhash("map_finish_$uri");	my $lastres = $self->navhash("map_finish_$uri");
Line 1815 sub courseMapDefined {	Line 2276 sub courseMapDefined {
sub getIterator {	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);
return $iterator;	return $iterator;
}	}

# unties the hash when done
sub untieHashes {
my $self = shift;
untie %{$self->{NAV_HASH}};
untie %{$self->{PARM_HASH}};
}

# Private method: Does the given resource (as a symb string) have	# Private method: Does the given resource (as a symb string) have
# current discussion? Returns 0 if chat/mail data not extracted.	# current discussion? Returns 0 if chat/mail data not extracted.
sub hasDiscussion {	sub hasDiscussion {
my $self = shift;	my $self = shift;
my $symb = shift;	my $symb = shift;

$self->generate_email_discuss_status();	$self->generate_email_discuss_status();

if (!defined($self->{DISCUSSION_TIME})) { return 0; }	if (!defined($self->{DISCUSSION_TIME})) { return 0; }

#return defined($self->{DISCUSSION_TIME}->{$symb});	#return defined($self->{DISCUSSION_TIME}->{$symb});
return $self->{DISCUSSION_TIME}->{$symb} >
$self->{LAST_CHECK};	# backward compatibility (bulletin boards used to be 'wrapped')
	my $ressymb = $self->wrap_symb($symb);
	if ( defined ( $self->{LAST_READ}->{$ressymb} ) ) {
	return $self->{DISCUSSION_TIME}->{$ressymb} > $self->{LAST_READ}->{$ressymb};
	} else {
	# return $self->{DISCUSSION_TIME}->{$ressymb} > $self->{LAST_CHECK}; # v.1.1 behavior
	return $self->{DISCUSSION_TIME}->{$ressymb} > 0; # in 1.2 will display speech bubble icons for all items with posts until marked as read (even if read in v 1.1).
	}
	}

	sub wrap_symb {
	my $self = shift;
	my $symb = shift;
	if ($symb =~ m-___(adm/\w+/\w+/)(\d+)(/bulletinboard)$-) {
	unless ($symb =~ m\|adm/wrapper/adm\|) {
	$symb = 'bulletin___'.$2.'___adm/wrapper/'.$1.$2.$3;
	}
	}
	return $symb;
}	}

# Private method: Does the given resource (as a symb string) have	# Private method: Does the given resource (as a symb string) have
# current feedback? Returns the string in the feedback hash, which	# current feedback? Returns the string in the feedback hash, which
# will be false if it does not exist.	# will be false if it does not exist.

sub getFeedback {	sub getFeedback {
my $self = shift;	my $self = shift;
my $symb = shift;	my $symb = shift;
Line 1909 sub getById {	Line 2382 sub getById {
sub getBySymb {	sub getBySymb {
my $self = shift;	my $self = shift;
my $symb = shift;	my $symb = shift;
my ($mapUrl, $id, $filename) = split (/___/, $symb);
	my ($mapUrl, $id, $filename) = &Apache::lonnet::decode_symb($symb);
my $map = $self->getResourceByUrl($mapUrl);	my $map = $self->getResourceByUrl($mapUrl);
return $self->getById($map->map_pc() . '.' . $id);	my $returnvalue = undef;
	if (ref($map)) {
	$returnvalue = $self->getById($map->map_pc() .'.'.$id);
	}
	return $returnvalue;
}	}

sub getByMapPc {	sub getByMapPc {
Line 1934 resource in the navmap.	Line 2412 resource in the navmap.
sub firstResource {	sub firstResource {
my $self = shift;	my $self = shift;
my $firstResource = $self->navhash('map_start_' .	my $firstResource = $self->navhash('map_start_' .
&Apache::lonnet::clutter($ENV{'request.course.uri'}));	&Apache::lonnet::clutter($env{'request.course.uri'}));
return $self->getById($firstResource);	return $self->getById($firstResource);
}	}

Line 1950 in the navmap.	Line 2428 in the navmap.
sub finishResource {	sub finishResource {
my $self = shift;	my $self = shift;
my $firstResource = $self->navhash('map_finish_' .	my $firstResource = $self->navhash('map_finish_' .
&Apache::lonnet::clutter($ENV{'request.course.uri'}));	&Apache::lonnet::clutter($env{'request.course.uri'}));
return $self->getById($firstResource);	return $self->getById($firstResource);
}	}

Line 1977 sub parmval_real {	Line 2455 sub parmval_real {
# 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();

my $cid=$ENV{'request.course.id'};	my $cid=$env{'request.course.id'};
my $csec=$ENV{'request.course.sec'};	my $csec=$env{'request.course.sec'};
my $uname=$ENV{'user.name'};	my $uname=$env{'user.name'};
my $udom=$ENV{'user.domain'};	my $udom=$env{'user.domain'};

unless ($symb) { return ''; }	unless ($symb) { return ''; }
my $result='';	my $result='';

my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);	my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);

# ----------------------------------------------------- Cascading lookup scheme	# ----------------------------------------------------- Cascading lookup scheme
my $rwhat=$what;	my $rwhat=$what;
Line 1994 sub parmval_real {	Line 2472 sub parmval_real {

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

my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;	my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;	my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
Line 2024 sub parmval_real {	Line 2502 sub parmval_real {

if (defined($courseopt)) {	if (defined($courseopt)) {
if (defined($$courseopt{$courselevelr})) { return $$courseopt{$courselevelr}; }	if (defined($$courseopt{$courselevelr})) { return $$courseopt{$courselevelr}; }
if (defined($$courseopt{$courselevelm})) { return $$courseopt{$courselevelm}; }
if (defined($$courseopt{$courselevel})) { return $$courseopt{$courselevel}; }
}	}

# ----------------------------------------------------- third, check map parms	# ----------------------------------------------------- third, check map parms
Line 2035 sub parmval_real {	Line 2511 sub parmval_real {

# ----------------------------------------------------- fourth , check default	# ----------------------------------------------------- fourth , check default

my $default=&Apache::lonnet::metadata($fn,$rwhat.'.default');	my $meta_rwhat=$rwhat;
	$meta_rwhat=~s/\./_/g;
	my $default=&Apache::lonnet::metadata($fn,$meta_rwhat);
if (defined($default)) { return $default}	if (defined($default)) { return $default}
	$default=&Apache::lonnet::metadata($fn,'parameter_'.$meta_rwhat);
	if (defined($default)) { return $default}

	# --------------------------------------------------- fifth, check more course
	if (defined($courseopt)) {
	if (defined($$courseopt{$courselevelm})) { return $$courseopt{$courselevelm}; }
	if (defined($$courseopt{$courselevel})) { return $$courseopt{$courselevel}; }
	}

# --------------------------------------------------- fifth , cascade up parts	# --------------------------------------------------- sixth , cascade up parts

my ($space,@qualifier)=split(/\./,$rwhat);	my ($space,@qualifier)=split(/\./,$rwhat);
my $qualifier=join('.',@qualifier);	my $qualifier=join('.',@qualifier);
Line 2067 you're not sure if $res is already an ob	Line 2553 you're not sure if $res is already an ob
resource appears multiple times in the course, only the first instance	resource appears multiple times in the course, only the first instance
will be returned. As a result, this is probably useful only for maps.	will be returned. As a result, this is probably useful only for maps.

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

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 2075 function that takes a resource object as	Line 2561 function that takes a resource object as
true if the resource should be included, or false if it should not	true if the resource should be included, or false if it should not
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. By default,	as soon as it finds a resource, if false it will finish. If showall is
the map is the top-level map of the course, filterFunc is a function	true it will not hide maps that contain nothing but one other map. By
that always returns 1, recursive is true, bailout is false. The	default, the map is the top-level map of the course, filterFunc is a
resources will be returned in a list containing the resource objects	function that always returns 1, recursive is true, bailout is false,
for the corresponding resources, with B<no structure information> in	showall is false. The resources will be returned in a list containing
the list; regardless of branching, recursion, etc., it will be a flat	the resource objects for the corresponding resources, with B<no
list.	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 2090 want to know is if I<any> resources matc	Line 2577 want to know is if I<any> resources matc
parameter will allow you to avoid potentially expensive enumeration of	parameter will allow you to avoid potentially expensive enumeration of
all matching resources.	all matching resources.

=item * B<hasResources>(map, filterFunc, recursive):	=item * B<hasResource>(map, filterFunc, recursive, showall):

Convience method for	Convience method for

scalar(retrieveResources($map, $filterFunc, $recursive, 1)) > 0	scalar(retrieveResources($map, $filterFunc, $recursive, 1, $showall)) > 0

which will tell whether the map has resources matching the description	which will tell whether the map has resources matching the description
in the filter function.	in the filter function.

=cut	=cut


sub getResourceByUrl {	sub getResourceByUrl {
my $self = shift;	my $self = shift;
my $resUrl = shift;	my $resUrl = shift;
Line 2127 sub retrieveResources {	Line 2615 sub retrieveResources {
if (!defined($recursive)) { $recursive = 1; }	if (!defined($recursive)) { $recursive = 1; }
my $bailout = shift;	my $bailout = shift;
if (!defined($bailout)) { $bailout = 0; }	if (!defined($bailout)) { $bailout = 0; }
	my $showall = shift;
# Create the necessary iterator.	# Create the necessary iterator.
if (!ref($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 2146 sub retrieveResources {	Line 2634 sub retrieveResources {

# Get an iterator.	# Get an iterator.
my $it = $self->getIterator($map->map_start(), $map->map_finish(),	my $it = $self->getIterator($map->map_start(), $map->map_finish(),
undef, $recursive);	undef, $recursive, $showall);

my @resources = ();	my @resources = ();

Line 2176 sub hasResource {	Line 2664 sub hasResource {
my $map = shift;	my $map = shift;
my $filterFunc = shift;	my $filterFunc = shift;
my $recursive = shift;	my $recursive = shift;
	my $showall = shift;

return scalar($self->retrieveResources($map, $filterFunc, $recursive, 1)) > 0;	return scalar($self->retrieveResources($map, $filterFunc, $recursive, 1, $showall)) > 0;
}	}

1;	1;

package Apache::lonnavmaps::iterator;	package Apache::lonnavmaps::iterator;
	use WeakRef;
	use Apache::lonnet;

=pod	=pod

Line 2278 consisting entirely of empty resources e	Line 2769 consisting entirely of empty resources e
ending resource, will cause a lot of BRANCH_STARTs and BRANCH_ENDs,	ending resource, will cause a lot of BRANCH_STARTs and BRANCH_ENDs,
but only one resource will be returned.	but only one resource will be returned.

	=back

=head2 Normal Usage	=head2 Normal Usage

Normal usage of the iterator object is to do the following:	Normal usage of the iterator object is to do the following:
Line 2298 the depth of the iterator to see when it	Line 2791 the depth of the iterator to see when it
code. It is difficult to get right and harder to understand then	code. It is difficult to get right and harder to understand then
this. They should be migrated to this new style.	this. They should be migrated to this new style.

=back

=cut	=cut

# Here are the tokens for the iterator:	# Here are the tokens for the iterator:
Line 2323 sub new {	Line 2814 sub new {
my $class = ref($proto) \|\| $proto;	my $class = ref($proto) \|\| $proto;
my $self = {};	my $self = {};

$self->{NAV_MAP} = shift;	weaken($self->{NAV_MAP} = shift);
return undef unless ($self->{NAV_MAP});	return undef unless ($self->{NAV_MAP});

# Handle the parameters	# Handle the parameters
Line 2436 sub new {	Line 2927 sub new {
}	}

# Check: Was this only one resource, a map?	# Check: Was this only one resource, a map?
if ($resourceCount == 1 && $resource->is_map() && !$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 = $resource->map_finish();
return	return
Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,	Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,
$finishResource, $self->{FILTER},	$finishResource, $self->{FILTER},
$self->{ALREADY_SEEN},	$self->{ALREADY_SEEN},
$self->{CONDITION}, 0);	$self->{CONDITION},
	$self->{FORCE_TOP});

}	}

Line 2469 sub new {	Line 2961 sub new {

sub next {	sub next {
my $self = shift;	my $self = shift;
	my $closeAllPages=shift;
if ($self->{FINISHED}) {	if ($self->{FINISHED}) {
return END_ITERATOR();	return END_ITERATOR();
}	}
Line 2483 sub next {	Line 2975 sub next {

if ($self->{RECURSIVE_ITERATOR_FLAG}) {	if ($self->{RECURSIVE_ITERATOR_FLAG}) {
# grab the next from the recursive iterator	# grab the next from the recursive iterator
my $next = $self->{RECURSIVE_ITERATOR}->next();	my $next = $self->{RECURSIVE_ITERATOR}->next($closeAllPages);

# is it a begin or end map? If so, update the depth	# is it a begin or end map? If so, update the depth
if ($next == BEGIN_MAP() ) { $self->{RECURSIVE_DEPTH}++; }	if ($next == BEGIN_MAP() ) { $self->{RECURSIVE_DEPTH}++; }
Line 2597 sub next {	Line 3089 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 ($self->{HERE}->is_map() &&	if ( ($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})) {
$self->{RECURSIVE_ITERATOR_FLAG} = 1;	$self->{RECURSIVE_ITERATOR_FLAG} = 1;
my $firstResource = $self->{HERE}->map_start();	my $firstResource = $self->{HERE}->map_start();
Line 2606 sub next {	Line 3098 sub next {
$self->{RECURSIVE_ITERATOR} =	$self->{RECURSIVE_ITERATOR} =
Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,	Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,
$finishResource, $self->{FILTER},	$finishResource, $self->{FILTER},
$self->{ALREADY_SEEN}, $self->{CONDITION});	$self->{ALREADY_SEEN},
	$self->{CONDITION},
	$self->{FORCE_TOP});
}	}

# If this is a blank resource, don't actually return it.	# If this is a blank resource, don't actually return it.
Line 2615 sub next {	Line 3109 sub next {
my $browsePriv = $self->{HERE}->browsePriv();	my $browsePriv = $self->{HERE}->browsePriv();
if (!$self->{HERE}->src() \|\|	if (!$self->{HERE}->src() \|\|
(!($browsePriv eq 'F') && !($browsePriv eq '2')) ) {	(!($browsePriv eq 'F') && !($browsePriv eq '2')) ) {
return $self->next();	return $self->next($closeAllPages);
}	}

return $self->{HERE};	return $self->{HERE};
Line 2659 sub populateStack {	Line 3153 sub populateStack {
1;	1;

package Apache::lonnavmaps::DFSiterator;	package Apache::lonnavmaps::DFSiterator;
	use WeakRef;
	use Apache::lonnet;

# Not documented in the perldoc: This is a simple iterator that just walks	# Not documented in the perldoc: This is a simple iterator that just walks
# through the nav map and presents the resources in a depth-first search	# through the nav map and presents the resources in a depth-first search
Line 2667 package Apache::lonnavmaps::DFSiterator;	Line 3163 package Apache::lonnavmaps::DFSiterator;
# useful for pre-processing of some kind, and is in fact used by the main	# useful for pre-processing of some kind, and is in fact used by the main
# iterator that way, but that's about it.	# iterator that way, but that's about it.
# One could imagine merging this into the init routine of the main iterator,	# One could imagine merging this into the init routine of the main iterator,
# but this might as well be left seperate, since it is possible some other	# but this might as well be left separate, since it is possible some other
# use might be found for it. - Jeremy	# use might be found for it. - Jeremy

# Unlike the main iterator, this DOES return all resources, even blank ones.	# Unlike the main iterator, this DOES return all resources, even blank ones.
Line 2687 sub new {	Line 3183 sub new {
my $class = ref($proto) \|\| $proto;	my $class = ref($proto) \|\| $proto;
my $self = {};	my $self = {};

$self->{NAV_MAP} = shift;	weaken($self->{NAV_MAP} = shift);
return undef unless ($self->{NAV_MAP});	return undef unless ($self->{NAV_MAP});

$self->{FIRST_RESOURCE} = shift \|\| $self->{NAV_MAP}->firstResource();	$self->{FIRST_RESOURCE} = shift \|\| $self->{NAV_MAP}->firstResource();
Line 2841 sub populateStack {	Line 3337 sub populateStack {
1;	1;

package Apache::lonnavmaps::resource;	package Apache::lonnavmaps::resource;
	use WeakRef;
use Apache::lonnet;	use Apache::lonnet;

=pod	=pod
Line 2923 sub new {	Line 3419 sub new {
my $class = ref($proto) \|\| $proto;	my $class = ref($proto) \|\| $proto;
my $self = {};	my $self = {};

$self->{NAV_MAP} = shift;	weaken($self->{NAV_MAP} = shift);
$self->{ID} = shift;	$self->{ID} = shift;

# Store this new resource in the parent nav map's cache.	# Store this new resource in the parent nav map's cache.
Line 3011 Returns the title of the resource.	Line 3507 Returns the title of the resource.
# These info functions can be used directly, as they don't return	# These info functions can be used directly, as they don't return
# resource information.	# resource information.
sub comesfrom { my $self=shift; return $self->navHash("comesfrom_", 1); }	sub comesfrom { my $self=shift; return $self->navHash("comesfrom_", 1); }
	sub encrypted { my $self=shift; return $self->navHash("encrypted_", 1); }
sub ext { my $self=shift; return $self->navHash("ext_", 1) eq 'true:'; }	sub ext { my $self=shift; return $self->navHash("ext_", 1) eq 'true:'; }
sub from { my $self=shift; return $self->navHash("from_", 1); }	sub from { my $self=shift; return $self->navHash("from_", 1); }
# considered private and undocumented	# considered private and undocumented
Line 3022 sub randompick {	Line 3519 sub randompick {
return $self->{NAV_MAP}->{PARM_HASH}->{$self->symb .	return $self->{NAV_MAP}->{PARM_HASH}->{$self->symb .
'.0.parameter_randompick'};	'.0.parameter_randompick'};
}	}
	sub link {
	my $self=shift;
	if ($self->encrypted()) { return &Apache::lonenc::encrypted($self->src); }
	return $self->src;
	}
sub src {	sub src {
my $self=shift;	my $self=shift;
return $self->navHash("src_", 1);	return $self->navHash("src_", 1);
}	}
	sub shown_symb {
	my $self=shift;
	if ($self->encrypted()) {return &Apache::lonenc::encrypted($self->symb());}
	return $self->symb();
	}
	sub id {
	my $self=shift;
	return $self->{ID};
	}
	sub enclosing_map_src {
	my $self=shift;
	(my $first, my $second) = $self->{ID} =~ /(\d+).(\d+)/;
	return $self->navHash('map_id_'.$first);
	}
sub symb {	sub symb {
my $self=shift;	my $self=shift;
(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());
return &Apache::lonnet::declutter(	my $symb = &Apache::lonnet::declutter($self->navHash('map_id_'.$first))
$self->navHash('map_id_'.$first))
. '___' . $second . '___' . $symbSrc;	. '___' . $second . '___' . $symbSrc;
	return &Apache::lonnet::symbclean($symb);
	}
	sub wrap_symb {
	my $self = shift;
	return $self->{NAV_MAP}->wrap_symb($self->symb());
}	}
sub title {	sub title {
my $self=shift;	my $self=shift;
if ($self->{ID} eq '0.0') {	if ($self->{ID} eq '0.0') {
# If this is the top-level map, return the title of the course	# If this is the top-level map, return the title of the course
# since this map can not be titled otherwise.	# since this map can not be titled otherwise.
return $ENV{'course.'.$ENV{'request.course.id'}.'.description'};	return $env{'course.'.$env{'request.course.id'}.'.description'};
}	}
return $self->navHash("title_", 1); }	return $self->navHash("title_", 1); }
# considered private and undocumented	# considered private and undocumented
sub to { my $self=shift; return $self->navHash("to_", 1); }	sub to { my $self=shift; return $self->navHash("to_", 1); }
	sub condition {
	my $self=shift;
	my $undercond=$self->navHash("undercond_", 1);
	if (!defined($undercond)) { return 1; };
	my $condid=$self->navHash("condid_$undercond");
	if (!defined($condid)) { return 1; };
	my $condition=&Apache::lonnet::directcondval($condid);
	return $condition;
	}

sub compTitle {	sub compTitle {
my $self = shift;	my $self = shift;
my $title = $self->title();	my $title = $self->title();
Line 3084 Returns true if the resource is a sequen	Line 3614 Returns true if the resource is a sequen

=cut	=cut

	sub hasResource {
	my $self = shift;
	return $self->{NAV_MAP}->hasResource(@_);
	}

	sub retrieveResources {
	my $self = shift;
	return $self->{NAV_MAP}->retrieveResources(@_);
	}

sub is_html {	sub is_html {
my $self=shift;	my $self=shift;
Line 3100 sub is_page {	Line 3639 sub is_page {
sub is_problem {	sub is_problem {
my $self=shift;	my $self=shift;
my $src = $self->src();	my $src = $self->src();
return ($src =~ /problem$/);	return ($src =~ /\.(problem\|exam\|quiz\|assess\|survey\|form\|library\|task)$/)
	}
	sub contains_problem {
	my $self=shift;
	if ($self->is_page()) {
	my $hasProblem=$self->hasResource($self,sub { $_[0]->is_problem() },1);
	return $hasProblem;
	}
	return 0;
}	}
sub is_sequence {	sub is_sequence {
my $self=shift;	my $self=shift;
Line 3108 sub is_sequence {	Line 3655 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_survey {
	my $self = shift();
	my $part = shift();
	if ($self->parmval('type',$part) eq 'survey') {
	return 1;
	}
	if ($self->src() =~ /\.(survey)$/) {
	return 1;
	}
	return 0;
	}

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

# Private method: Shells out to the parmval in the nav map, handler parts.	# Private method: Shells out to the parmval in the nav map, handler parts.
sub parmval {	sub parmval {
Line 3284 sub awarded {	Line 3848 sub awarded {
}	}
sub duedate {	sub duedate {
(my $self, my $part) = @_;	(my $self, my $part) = @_;
	my $interval=$self->parmval("interval", $part);
	if ($interval) {
	my $first_access=&Apache::lonnet::get_first_access('map',$self->symb);
	if ($first_access) { return ($first_access+$interval); }
	}
return $self->parmval("duedate", $part);	return $self->parmval("duedate", $part);
}	}
	sub handgrade {
	(my $self, my $part) = @_;
	return $self->parmval("handgrade", $part);
	}
sub maxtries {	sub maxtries {
(my $self, my $part) = @_;	(my $self, my $part) = @_;
return $self->parmval("maxtries", $part);	return $self->parmval("maxtries", $part);
Line 3300 sub opendate {	Line 3873 sub opendate {
}	}
sub problemstatus {	sub problemstatus {
(my $self, my $part) = @_;	(my $self, my $part) = @_;
return $self->parmval("problemstatus", $part);	return lc $self->parmval("problemstatus", $part);
}	}
sub sig {	sub sig {
(my $self, my $part) = @_;	(my $self, my $part) = @_;
Line 3324 sub weight {	Line 3897 sub weight {
my $self = shift; my $part = shift;	my $self = shift; my $part = shift;
if (!defined($part)) { $part = '0'; }	if (!defined($part)) { $part = '0'; }
return &Apache::lonnet::EXT('resource.'.$part.'.weight',	return &Apache::lonnet::EXT('resource.'.$part.'.weight',
$self->symb(), $ENV{'user.domain'},	$self->symb(), $env{'user.domain'},
$ENV{'user.name'},	$env{'user.name'},
$ENV{'request.course.sec'});	$env{'request.course.sec'});
	}
	sub part_display {
	my $self= shift(); my $partID = shift();
	if (! defined($partID)) { $partID = '0'; }
	my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',
	$self->symb);
	if (! defined($display) \|\| $display eq '') {
	$display = $partID;
	}
	return $display;
}	}

# Multiple things need this	# Multiple things need this
Line 3417 Returns the number of parts of the probl	Line 3999 Returns the number of parts of the probl
for single part problems, returns 1. For multipart, it returns the	for single part problems, returns 1. For multipart, it returns the
number of parts in the problem, not including psuedo-part 0.	number of parts in the problem, not including psuedo-part 0.

	=item * B<countResponses>():

	Returns the total number of responses in the problem a student can answer.

	=item * B<responseTypes>():

	Returns a hash whose keys are the response types. The values are the number
	of times each response type is used. This is for the I<entire> problem, not
	just a single part.

=item * B<multipart>():	=item * B<multipart>():

Returns true if the problem is multipart, false otherwise. Use this instead	Returns true if the problem is multipart, false otherwise. Use this instead
Line 3463 sub countParts {	Line 4055 sub countParts {
return scalar(@{$parts}); # + $delta;	return scalar(@{$parts}); # + $delta;
}	}

	sub countResponses {
	my $self = shift;
	my $count;
	foreach my $part (@{$self->parts()}) {
	$count+= scalar($self->responseIds($part));
	}
	return $count;
	}

	sub responseTypes {
	my $self = shift;
	my %responses;
	foreach my $part ($self->parts()) {
	foreach my $responsetype ($self->responseType($part)) {
	$responses{$responsetype}++ if (defined($responsetype));
	}
	}
	return %responses;
	}

sub multipart {	sub multipart {
my $self = shift;	my $self = shift;
return $self->countParts() > 1;	return $self->countParts() > 1;
}	}

	sub singlepart {
	my $self = shift;
	return $self->countParts() == 1;
	}

sub responseType {	sub responseType {
my $self = shift;	my $self = shift;
my $part = shift;	my $part = shift;

$self->extractParts();	$self->extractParts();
return $self->{RESPONSE_TYPES}->{$part};	if (defined($self->{RESPONSE_TYPES}->{$part})) {
	return @{$self->{RESPONSE_TYPES}->{$part}};
	} else {
	return undef;
	}
}	}

sub responseIds {	sub responseIds {
Line 3481 sub responseIds {	Line 4102 sub responseIds {
my $part = shift;	my $part = shift;

$self->extractParts();	$self->extractParts();
return $self->{RESPONSE_IDS}->{$part};	if (defined($self->{RESPONSE_IDS}->{$part})) {
	return @{$self->{RESPONSE_IDS}->{$part}};
	} else {
	return undef;
	}
}	}

# Private function: Extracts the parts information, both part names and	# Private function: Extracts the parts information, both part names and
Line 3498 sub extractParts {	Line 4123 sub extractParts {

# Retrieve part count, if this is a problem	# Retrieve part count, if this is a problem
if ($self->is_problem()) {	if ($self->is_problem()) {
	my $partorder = &Apache::lonnet::metadata($self->src(), 'partorder');
my $metadata = &Apache::lonnet::metadata($self->src(), 'packages');	my $metadata = &Apache::lonnet::metadata($self->src(), 'packages');
if (!$metadata) {
$self->{RESOURCE_ERROR} = 1;
$self->{PARTS} = [];
$self->{PART_TYPE} = {};
return;
}
foreach (split(/\,/,$metadata)) {
if ($_ =~ /^part_(.*)$/) {
my $part = $1;
# This floods the logs if it blows up
if (defined($parts{$part})) {
Apache::lonnet::logthis("$part multiply defined in metadata for " . $self->symb());
}

# check to see if part is turned off.

if (!Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {	if ($partorder) {
$parts{$part} = 1;	my @parts;
}	for my $part (split (/,/,$partorder)) {
}	if (!Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {
	push @parts, $part;
	$parts{$part} = 1;
	}
	}
	$self->{PARTS} = \@parts;
	} else {
	if (!$metadata) {
	$self->{RESOURCE_ERROR} = 1;
	$self->{PARTS} = [];
	$self->{PART_TYPE} = {};
	return;
	}
	foreach (split(/\,/,$metadata)) {
	if ($_ =~ /^(?:part\|Task)_(.*)$/) {
	&Apache::lonnet::logthis($self->src()." part -> ".$1);
	my $part = $1;
	# This floods the logs if it blows up
	if (defined($parts{$part})) {
	&Apache::lonnet::logthis("$part multiply defined in metadata for " . $self->symb());
	}

	# check to see if part is turned off.

	if (!Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {
	$parts{$part} = 1;
	}
	}
	}
	my @sortedParts = sort keys %parts;
	$self->{PARTS} = \@sortedParts;
}	}


my @sortedParts = sort keys %parts;
$self->{PARTS} = \@sortedParts;

	# These hashes probably do not need names that end with "Hash"....
my %responseIdHash;	my %responseIdHash;
my %responseTypeHash;	my %responseTypeHash;

Line 3535 sub extractParts {	Line 4174 sub extractParts {
}	}

# Now, the unfortunate thing about this is that parts, part name, and	# Now, the unfortunate thing about this is that parts, part name, and
# response if are delimited by underscores, but both the part	# response id are delimited by underscores, but both the part
# name and response id can themselves have underscores in them.	# name and response id can themselves have underscores in them.
# 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
Line 3547 sub extractParts {	Line 4186 sub extractParts {
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 .= '_'; }
$partIdSoFar .= $partChunks[$i];	$partIdSoFar .= $partChunks[$i];
Line 3555 sub extractParts {	Line 4193 sub extractParts {
my @otherChunks = @partChunks[$i+1..$#partChunks];	my @otherChunks = @partChunks[$i+1..$#partChunks];
my $responseId = join('_', @otherChunks);	my $responseId = join('_', @otherChunks);
push @{$responseIdHash{$partIdSoFar}}, $responseId;	push @{$responseIdHash{$partIdSoFar}}, $responseId;
$responseTypeHash{$partIdSoFar} = $responseType;	push @{$responseTypeHash{$partIdSoFar}}, $responseType;
last;
}	}
}	}
}	}
}	}
	my $resorder = &Apache::lonnet::metadata($self->src(),'responseorder');
	#
	# Reorder the arrays in the %responseIdHash and %responseTypeHash
	if ($resorder) {
	my @resorder=split(/,/,$resorder);
	foreach my $part (keys(%responseIdHash)) {
	my $i=0;
	my %resids = map { ($_,$i++) } @{ $responseIdHash{$part} };
	my @neworder;
	foreach my $possibleid (@resorder) {
	if (exists($resids{$possibleid})) {
	push(@neworder,$resids{$possibleid});
	}
	}
	my @ids;
	my @type;
	foreach my $element (@neworder) {
	push (@ids,$responseIdHash{$part}->[$element]);
	push (@type,$responseTypeHash{$part}->[$element]);
	}
	$responseIdHash{$part}=\@ids;
	$responseTypeHash{$part}=\@type;
	}
	}
$self->{RESPONSE_IDS} = \%responseIdHash;	$self->{RESPONSE_IDS} = \%responseIdHash;
$self->{RESPONSE_TYPES} = \%responseTypeHash;	$self->{RESPONSE_TYPES} = \%responseTypeHash;
}	}
Line 3749 sub ATTEMPTED { return 16; }	Line 4409 sub ATTEMPTED { return 16; }

sub getCompletionStatus {	sub getCompletionStatus {
my $self = shift;	my $self = shift;
	my $part = shift;
return $self->NETWORK_FAILURE if ($self->{NAV_MAP}->{NETWORK_FAILURE});	return $self->NETWORK_FAILURE if ($self->{NAV_MAP}->{NETWORK_FAILURE});

my $status = $self->queryRestoreHash('solved', shift);	my $status = $self->queryRestoreHash('solved', $part);

# Left as seperate if statements in case we ever do more with this	# Left as separate if statements in case we ever do more with this
if ($status eq 'correct_by_student') {return $self->CORRECT;}	if ($status eq 'correct_by_student') {return $self->CORRECT;}
if ($status eq 'correct_by_override') {return $self->CORRECT_BY_OVERRIDE; }	if ($status eq 'correct_by_scantron') {return $self->CORRECT;}
	if ($status eq 'correct_by_override') {
	return $self->CORRECT_BY_OVERRIDE;
	}
if ($status eq 'incorrect_attempted') {return $self->INCORRECT; }	if ($status eq 'incorrect_attempted') {return $self->INCORRECT; }
if ($status eq 'incorrect_by_override') {return $self->INCORRECT_BY_OVERRIDE; }	if ($status eq 'incorrect_by_override') {return $self->INCORRECT_BY_OVERRIDE; }
if ($status eq 'excused') {return $self->EXCUSED; }	if ($status eq 'excused') {return $self->EXCUSED; }
Line 3859 An answer has been submitted, but the st	Line 4523 An answer has been submitted, but the st

sub TRIES_LEFT { return 20; }	sub TRIES_LEFT { return 20; }
sub ANSWER_SUBMITTED { return 21; }	sub ANSWER_SUBMITTED { return 21; }
	sub PARTIALLY_CORRECT{ return 22; }

sub status {	sub status {
my $self = shift;	my $self = shift;
Line 3874 sub status {	Line 4539 sub status {
#if ($self->{RESOURCE_ERROR}) { return NETWORK_FAILURE; }	#if ($self->{RESOURCE_ERROR}) { return NETWORK_FAILURE; }
if ($completionStatus == NETWORK_FAILURE) { return NETWORK_FAILURE; }	if ($completionStatus == NETWORK_FAILURE) { return NETWORK_FAILURE; }

my $suppressFeedback = lc($self->parmval("problemstatus", $part)) eq 'no';	my $suppressFeedback = $self->problemstatus($part) eq 'no';
	# If there's an answer date and we're past it, don't
	# suppress the feedback; student should know
	if ($self->duedate($part) && $self->duedate($part) < time() &&
	$self->answerdate($part) && $self->answerdate($part) < time()) {
	$suppressFeedback = 0;
	}

# 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 ) {
return $suppressFeedback? ANSWER_SUBMITTED : CORRECT;	if ( $suppressFeedback ) { return ANSWER_SUBMITTED }
	my $awarded=$self->awarded($part);
	if ($awarded < 1 && $awarded > 0) {
	return PARTIALLY_CORRECT;
	} elsif ($awarded<1) {
	return INCORRECT;
	}
	return CORRECT;
}	}

if ($completionStatus == ATTEMPTED) {	if ($completionStatus == ATTEMPTED) {
Line 3900 sub status {	Line 4578 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 $dateStatus;	return $suppressFeedback ? ANSWER_SUBMITTED : $dateStatus;
}	}

if ($dateStatus == ANSWER_OPEN) {	if ($dateStatus == ANSWER_OPEN) {
Line 3927 sub status {	Line 4605 sub status {
return OPEN;	return OPEN;
}	}

	sub CLOSED { return 23; }
	sub ERROR { return 24; }

	=pod

	B<Simple Status>

	Convenience method B<simpleStatus> provides a "simple status" for the resource.
	"Simple status" corresponds to "which icon is shown on the
	Navmaps". There are six "simple" statuses:

	=over 4

	=item * B<CLOSED>: The problem is currently closed. (No icon shown.)

	=item * B<OPEN>: The problem is open and unattempted.

	=item * B<CORRECT>: The problem is correct for any reason.

	=item * B<INCORRECT>: The problem is incorrect and can still be
	completed successfully.

	=item * B<ATTEMPTED>: The problem has been attempted, but the student
	does not know if they are correct. (The ellipsis icon.)

	=item * B<ERROR>: There is an error retrieving information about this
	problem.

	=back

	=cut

	# This hash maps the composite status to this simple status, and
	# can be used directly, if you like
	my %compositeToSimple =
	(
	NETWORK_FAILURE() => ERROR,
	NOTHING_SET() => CLOSED,
	CORRECT() => CORRECT,
	PARTIALLY_CORRECT() => PARTIALLY_CORRECT,
	EXCUSED() => CORRECT,
	PAST_DUE_NO_ANSWER() => INCORRECT,
	PAST_DUE_ANSWER_LATER() => INCORRECT,
	ANSWER_OPEN() => INCORRECT,
	OPEN_LATER() => CLOSED,
	TRIES_LEFT() => OPEN,
	INCORRECT() => INCORRECT,
	OPEN() => OPEN,
	ATTEMPTED() => ATTEMPTED,
	ANSWER_SUBMITTED() => ATTEMPTED
	);

	sub simpleStatus {
	my $self = shift;
	my $part = shift;
	my $status = $self->status($part);
	return $compositeToSimple{$status};
	}

	=pod

	B<simpleStatusCount> will return an array reference containing, in
	this order, the number of OPEN, CLOSED, CORRECT, INCORRECT, ATTEMPTED,
	and ERROR parts the given problem has.

	=cut

	# This maps the status to the slot we want to increment
	my %statusToSlotMap =
	(
	OPEN() => 0,
	CLOSED() => 1,
	CORRECT() => 2,
	INCORRECT() => 3,
	ATTEMPTED() => 4,
	ERROR() => 5
	);

	sub statusToSlot { return $statusToSlotMap{shift()}; }

	sub simpleStatusCount {
	my $self = shift;

	my @counts = (0, 0, 0, 0, 0, 0, 0);
	foreach my $part (@{$self->parts()}) {
	$counts[$statusToSlotMap{$self->simpleStatus($part)}]++;
	}

	return \@counts;
	}

=pod	=pod

B<Completable>	B<Completable>
Line 3996 sub getNext {	Line 4765 sub getNext {
my $to = $self->to();	my $to = $self->to();
foreach my $branch ( split(/,/, $to) ) {	foreach my $branch ( split(/,/, $to) ) {
my $choice = $self->{NAV_MAP}->getById($branch);	my $choice = $self->{NAV_MAP}->getById($branch);
	if (!$choice->condition()) { next; }
my $next = $choice->goesto();	my $next = $choice->goesto();
$next = $self->{NAV_MAP}->getById($next);	$next = $self->{NAV_MAP}->getById($next);

Line 4024 sub browsePriv {	Line 4794 sub browsePriv {
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());
}	}

=pod	=pod

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

Removed from v.1.222
changed lines
	Added in v.1.337