tag
-=item $secondselectname, the name of the second tag
+=item * $secondselectname, the name of the second tag
-=item $hashref, a reference to a hash containing the data for the menus.
+=item * $hashref, a reference to a hash containing the data for the menus.
=back
@@ -311,43 +402,39 @@ first menu value is given in $menu{$choi
and text for the second menu are given in the hash pointed to by
$menu{$choice1}->{'select2'}.
-my %menu = ( A1 => { text =>"Choice A1" ,
- default => "B3",
- select2 => {
- B1 => "Choice B1",
- B2 => "Choice B2",
- B3 => "Choice B3",
- B4 => "Choice B4"
- }
- },
- A2 => { text =>"Choice A2" ,
- default => "C2",
- select2 => {
- C1 => "Choice C1",
- C2 => "Choice C2",
- C3 => "Choice C3"
- }
- },
- A3 => { text =>"Choice A3" ,
- default => "D6",
- select2 => {
- D1 => "Choice D1",
- D2 => "Choice D2",
- D3 => "Choice D3",
- D4 => "Choice D4",
- D5 => "Choice D5",
- D6 => "Choice D6",
- D7 => "Choice D7"
- }
- }
- );
-
-=back
+ my %menu = ( A1 => { text =>"Choice A1" ,
+ default => "B3",
+ select2 => {
+ B1 => "Choice B1",
+ B2 => "Choice B2",
+ B3 => "Choice B3",
+ B4 => "Choice B4"
+ }
+ },
+ A2 => { text =>"Choice A2" ,
+ default => "C2",
+ select2 => {
+ C1 => "Choice C1",
+ C2 => "Choice C2",
+ C3 => "Choice C3"
+ }
+ },
+ A3 => { text =>"Choice A3" ,
+ default => "D6",
+ select2 => {
+ D1 => "Choice D1",
+ D2 => "Choice D2",
+ D3 => "Choice D3",
+ D4 => "Choice D4",
+ D5 => "Choice D5",
+ D6 => "Choice D6",
+ D7 => "Choice D7"
+ }
+ }
+ );
=cut
-# ------------------------------------------------
-
sub linked_select_forms {
my ($formname,
$middletext,
@@ -396,6 +483,7 @@ function select1_changed() {
// in with the nuclear
for (i=0;i{$value}->{'text'})."\n";
}
$result .= " \n";
my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
@@ -419,16 +507,104 @@ END
foreach my $value (sort(keys(%select2))) {
$result.=" \n";
}
$result .= " \n";
# return $debug;
return $result;
} # end of sub linked_select_forms {
-###############################################################
+=pod
+
+=item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
+
+Returns a string corresponding to an HTML link to the given help
+$topic, where $topic corresponds to the name of a .tex file in
+/home/httpd/html/adm/help/tex, with underscores replaced by
+spaces.
+
+$text will optionally be linked to the same topic, allowing you to
+link text in addition to the graphic. If you do not want to link
+text, but wish to specify one of the later parameters, pass an
+empty string.
+
+$stayOnPage is a value that will be interpreted as a boolean. If true,
+the link will not open a new window. If false, the link will open
+a new window using Javascript. (Default is false.)
+
+$width and $height are optional numerical parameters that will
+override the width and height of the popped up window, which may
+be useful for certain help topics with big pictures included.
+
+=cut
+
+sub help_open_topic {
+ my ($topic, $text, $stayOnPage, $width, $height) = @_;
+ $text = "" if (not defined $text);
+ $stayOnPage = 0 if (not defined $stayOnPage);
+ if ($ENV{'browser.interface'} eq 'textual' ||
+ $ENV{'environment.remote'} eq 'off' ) {
+ $stayOnPage=1;
+ }
+ $width = 350 if (not defined $width);
+ $height = 400 if (not defined $height);
+ my $filename = $topic;
+ $filename =~ s/ /_/g;
-=item csv_translate($text)
+ my $template = "";
+ my $link;
+
+ $topic=~s/\W/\_/g;
+
+ if (!$stayOnPage)
+ {
+ $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
+ }
+ else
+ {
+ $link = "/adm/help/${filename}.hlp";
+ }
+
+ # Add the text
+ if ($text ne "")
+ {
+ $template .=
+ "".
+ "$text
' };
+ return $template;
+
+}
+
+# This is a quicky function for Latex cheatsheet editing, since it
+# appears in at least four places
+sub helpLatexCheatsheet {
+ my $other = shift;
+ my $addOther = '';
+ if ($other) {
+ $addOther = Apache::loncommon::help_open_topic($other, shift,
+ undef, undef, 600) .
+ '';
+ }
+ return ''.
+ $addOther .
+ &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
+ undef,undef,600)
+ .' '.
+ &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
+ undef,undef,600)
+ .'
';
+}
+
+=pod
+
+=item * csv_translate($text)
Translate $text to allow it to be output as a 'comma seperated values'
format.
@@ -442,14 +618,102 @@ sub csv_translate {
return $text;
}
-###############################################################
+=pod
+
+=item * change_content_javascript():
+
+This and the next function allow you to create small sections of an
+otherwise static HTML page that you can update on the fly with
+Javascript, even in Netscape 4.
+
+The Javascript fragment returned by this function (no EscriptE tag)
+must be written to the HTML page once. It will prove the Javascript
+function "change(name, content)". Calling the change function with the
+name of the section
+you want to update, matching the name passed to C, and
+the new content you want to put in there, will put the content into
+that area.
+
+B: Netscape 4 only reserves enough space for the changable area
+to contain room for the original contents. You need to "make space"
+for whatever changes you wish to make, and be B to check your
+code in Netscape 4. This feature in Netscape 4 is B powerful;
+it's adequate for updating a one-line status display, but little more.
+This script will set the space to 100% width, so you only need to
+worry about height in Netscape 4.
+
+Modern browsers are much less limiting, and if you can commit to the
+user not using Netscape 4, this feature may be used freely with
+pretty much any HTML.
+
+=cut
+
+sub change_content_javascript {
+ # If we're on Netscape 4, we need to use Layer-based code
+ if ($ENV{'browser.type'} eq 'netscape' &&
+ $ENV{'browser.version'} =~ /^4\./) {
+ return (<. $name is
+the name you will use to reference the area later; do not repeat the
+same name on a given HTML page more then once. $origContent is what
+the area will originally contain, which can be left blank.
+
+=cut
+
+sub changable_area {
+ my ($name, $origContent) = @_;
+
+ if ($ENV{'browser.type'} eq 'netscape' &&
+ $ENV{'browser.version'} =~ /^4\./) {
+ # If this is netscape 4, we need to use the Layer tag
+ return "$origContent $origContent ";
+ }
+}
+
+=pod
+
+=back
+
+=cut
###############################################################
## Home server list generating code ##
###############################################################
-#-------------------------------------------
-=item get_domains()
+=pod
+
+=head1 Home Server option list generating code
+
+=over 4
+
+=item * get_domains()
Returns an array containing each of the domains listed in the hosts.tab
file.
@@ -462,25 +726,128 @@ sub get_domains {
my @domains;
my %seen;
foreach (sort values(%Apache::lonnet::hostdom)) {
- push (@domains,$_) unless $seen{$_}++;
+ push (@domains,$_) unless $seen{$_}++;
}
return @domains;
}
+# ------------------------------------------
+
+sub domain_select {
+ my ($name,$value,$multiple)=@_;
+ my %domains=map {
+ $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
+ } &get_domains;
+ if ($multiple) {
+ $domains{''}=&mt('Any domain');
+ return &multiple_select_form($name,$value,%domains);
+ } else {
+ return &select_form($name,$value,%domains);
+ }
+}
+
+sub multiple_select_form {
+ my ($name,$value,%hash)=@_;
+ my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
+ my $output='';
+ my $size =(scalar keys %hash<4?scalar keys %hash:4);
+ $output.="\n";
+ foreach (sort keys %hash) {
+ $output.="$hash{$_} \n";
+ }
+ $output.=" \n";
+ return $output;
+}
+
#-------------------------------------------
-=item select_dom_form($defdom,$name)
+=pod
+
+=item * select_form($defdom,$name,%hash)
+
+Returns a string containing a form to
+allow a user to select options from a hash option_name => displayed text.
+See lonrights.pm for an example invocation and use.
+
+=cut
+
+#-------------------------------------------
+sub select_form {
+ my ($def,$name,%hash) = @_;
+ my $selectform = "\n";
+ my @keys;
+ if (exists($hash{'select_form_order'})) {
+ @keys=@{$hash{'select_form_order'}};
+ } else {
+ @keys=sort(keys(%hash));
+ }
+ foreach (@keys) {
+ $selectform.="".&mt($hash{$_})." \n";
+ }
+ $selectform.=" ";
+ return $selectform;
+}
+
+sub gradeleveldescription {
+ my $gradelevel=shift;
+ my %gradelevels=(0 => 'Not specified',
+ 1 => 'Grade 1',
+ 2 => 'Grade 2',
+ 3 => 'Grade 3',
+ 4 => 'Grade 4',
+ 5 => 'Grade 5',
+ 6 => 'Grade 6',
+ 7 => 'Grade 7',
+ 8 => 'Grade 8',
+ 9 => 'Grade 9',
+ 10 => 'Grade 10',
+ 11 => 'Grade 11',
+ 12 => 'Grade 12',
+ 13 => 'Grade 13',
+ 14 => '100 Level',
+ 15 => '200 Level',
+ 16 => '300 Level',
+ 17 => '400 Level',
+ 18 => 'Graduate Level');
+ return &mt($gradelevels{$gradelevel});
+}
+
+sub select_level_form {
+ my ($deflevel,$name)=@_;
+ unless ($deflevel) { $deflevel=0; }
+ my $selectform = "\n";
+ for (my $i=0; $i<=18; $i++) {
+ $selectform.="".&gradeleveldescription($i)." \n";
+ }
+ $selectform.=" ";
+ return $selectform;
+}
+
+#-------------------------------------------
+
+=pod
+
+=item * select_dom_form($defdom,$name,$includeempty)
Returns a string containing a form to
allow a user to select the domain to preform an operation in.
See loncreateuser.pm for an example invocation and use.
+If the $includeempty flag is set, it also includes an empty choice ("no domain
+selected");
+
=cut
#-------------------------------------------
sub select_dom_form {
- my ($defdom,$name) = @_;
+ my ($defdom,$name,$includeempty) = @_;
my @domains = get_domains();
+ if ($includeempty) { @domains=('',@domains); }
my $selectdomain = "\n";
foreach (@domains) {
$selectdomain.=" list to be used in a
form input. See loncreateuser.pm for an example.
@@ -525,7 +896,7 @@ returns a string which contains an list generating code ##
+## Decoding User Agent ##
###############################################################
+=pod
+
+=head1 Decoding the User Agent
+
+=over 4
+
+=item * &decode_user_agent()
+
+Inputs: $r
+
+Outputs:
+
+=over 4
+
+=item * $httpbrowser
+
+=item * $clientbrowser
+
+=item * $clientversion
+
+=item * $clientmathml
+
+=item * $clientunicode
+
+=item * $clientos
+
+=back
+
+=back
+
+=cut
+
+###############################################################
+###############################################################
+sub decode_user_agent {
+ my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
+ my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
+ my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
+ my $clientbrowser='unknown';
+ my $clientversion='0';
+ my $clientmathml='';
+ my $clientunicode='0';
+ for (my $i=0;$i<=$#browsertype;$i++) {
+ my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
+ if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
+ $clientbrowser=$bname;
+ $httpbrowser=~/$vreg/i;
+ $clientversion=$1;
+ $clientmathml=($clientversion>=$minv);
+ $clientunicode=($clientversion>=$univ);
+ }
+ }
+ my $clientos='unknown';
+ if (($httpbrowser=~/linux/i) ||
+ ($httpbrowser=~/unix/i) ||
+ ($httpbrowser=~/ux/i) ||
+ ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
+ if (($httpbrowser=~/vax/i) ||
+ ($httpbrowser=~/vms/i)) { $clientos='vms'; }
+ if ($httpbrowser=~/next/i) { $clientos='next'; }
+ if (($httpbrowser=~/mac/i) ||
+ ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
+ if ($httpbrowser=~/win/i) { $clientos='win'; }
+ if ($httpbrowser=~/embed/i) { $clientos='pda'; }
+ return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
+ $clientunicode,$clientos,);
+}
+
###############################################################
## Authentication changing form generation subroutines ##
###############################################################
@@ -547,7 +993,13 @@ sub home_server_option_list {
## formname = the name given in the ';
@@ -936,17 +1878,62 @@ sub get_previous_attempt {
}
}
+sub relative_to_absolute {
+ my ($url,$output)=@_;
+ my $parser=HTML::TokeParser->new(\$output);
+ my $token;
+ my $thisdir=$url;
+ my @rlinks=();
+ while ($token=$parser->get_token) {
+ if ($token->[0] eq 'S') {
+ if ($token->[1] eq 'a') {
+ if ($token->[2]->{'href'}) {
+ $rlinks[$#rlinks+1]=$token->[2]->{'href'};
+ }
+ } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
+ $rlinks[$#rlinks+1]=$token->[2]->{'src'};
+ } elsif ($token->[1] eq 'base') {
+ $thisdir=$token->[2]->{'href'};
+ }
+ }
+ }
+ $thisdir=~s-/[^/]*$--;
+ foreach (@rlinks) {
+ unless (($_=~/^http:\/\//i) ||
+ ($_=~/^\//) ||
+ ($_=~/^javascript:/i) ||
+ ($_=~/^mailto:/i) ||
+ ($_=~/^\#/)) {
+ my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_);
+ $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
+ }
+ }
+# -------------------------------------------------- Deal with Applet codebases
+ $output=~s/(\]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
+ return $output;
+}
+
+=pod
+
+=item * get_student_view
+
+show a snapshot of what student was looking at
+
+=cut
+
sub get_student_view {
- my ($symb,$username,$domain,$courseid) = @_;
- my ($map,$id,$feedurl) = split(/___/,$symb);
+ my ($symb,$username,$domain,$courseid,$target) = @_;
+ my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
my (%old,%moreenv);
my @elements=('symb','courseid','domain','username');
foreach my $element (@elements) {
$old{$element}=$ENV{'form.grade_'.$element};
$moreenv{'form.grade_'.$element}=eval '$'.$element #'
}
+ if ($target eq 'tex') {$moreenv{'form.grade_target'} = 'tex';}
&Apache::lonnet::appenv(%moreenv);
- my $userview=&Apache::lonnet::ssi('/res/'.$feedurl);
+ $feedurl=&Apache::lonnet::clutter($feedurl);
+ my $userview=&Apache::lonnet::ssi_body($feedurl);
&Apache::lonnet::delenv('form.grade_');
foreach my $element (@elements) {
$ENV{'form.grade_'.$element}=$old{$element};
@@ -958,12 +1945,21 @@ sub get_student_view {
$userview=~s/\//gi;
$userview=~s/\<\/head\>//gi;
$userview=~s/action\s*\=/would_be_action\=/gi;
+ $userview=&relative_to_absolute($feedurl,$userview);
return $userview;
}
+=pod
+
+=item * get_student_answers()
+
+show a snapshot of how student was answering problem
+
+=cut
+
sub get_student_answers {
- my ($symb,$username,$domain,$courseid) = @_;
- my ($map,$id,$feedurl) = split(/___/,$symb);
+ my ($symb,$username,$domain,$courseid,%form) = @_;
+ my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
my (%old,%moreenv);
my @elements=('symb','courseid','domain','username');
foreach my $element (@elements) {
@@ -972,7 +1968,7 @@ sub get_student_answers {
}
$moreenv{'form.grade_target'}='answer';
&Apache::lonnet::appenv(%moreenv);
- my $userview=&Apache::lonnet::ssi('/res/'.$feedurl);
+ my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%form);
&Apache::lonnet::delenv('form.grade_');
foreach my $element (@elements) {
$ENV{'form.grade_'.$element}=$old{$element};
@@ -980,9 +1976,401 @@ sub get_student_answers {
return $userview;
}
+=pod
+
+=item * &submlink()
+
+Inputs: $text $uname $udom $symb
+
+Returns: A link to grades.pm such as to see the SUBM view of a student
+
+=cut
+
+###############################################
+sub submlink {
+ my ($text,$uname,$udom,$symb)=@_;
+ if (!($uname && $udom)) {
+ (my $cursymb, my $courseid,$udom,$uname)=
+ &Apache::lonxml::whichuser($symb);
+ if (!$symb) { $symb=$cursymb; }
+ }
+ if (!$symb) { $symb=&symbread(); }
+ return ''.$text.' ';
+}
+##############################################
+
+=pod
+
+=back
+
+=cut
+
+###############################################
+
+
+sub timehash {
+ my @ltime=localtime(shift);
+ return ( 'seconds' => $ltime[0],
+ 'minutes' => $ltime[1],
+ 'hours' => $ltime[2],
+ 'day' => $ltime[3],
+ 'month' => $ltime[4]+1,
+ 'year' => $ltime[5]+1900,
+ 'weekday' => $ltime[6],
+ 'dayyear' => $ltime[7]+1,
+ 'dlsav' => $ltime[8] );
+}
+
+sub maketime {
+ my %th=@_;
+ return POSIX::mktime(
+ ($th{'seconds'},$th{'minutes'},$th{'hours'},
+ $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,$th{'dlsav'}));
+}
+
+#########################################
+
+sub findallcourses {
+ my %courses=();
+ my $now=time;
+ foreach (keys %ENV) {
+ if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
+ my ($starttime,$endtime)=$ENV{$_};
+ my $active=1;
+ if ($starttime) {
+ if ($now<$starttime) { $active=0; }
+ }
+ if ($endtime) {
+ if ($now>$endtime) { $active=0; }
+ }
+ if ($active) { $courses{$1.'_'.$2}=1; }
+ }
+ }
+ return keys %courses;
+}
+
+###############################################
+###############################################
+
+=pod
+
+=head1 Domain Template Functions
+
+=over 4
+
+=item * &determinedomain()
+
+Inputs: $domain (usually will be undef)
+
+Returns: Determines which domain should be used for designs
+
+=cut
+
+###############################################
+sub determinedomain {
+ my $domain=shift;
+ if (! $domain) {
+ # Determine domain if we have not been given one
+ $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
+ if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }
+ if ($ENV{'request.role.domain'}) {
+ $domain=$ENV{'request.role.domain'};
+ }
+ }
+ return $domain;
+}
+###############################################
+=pod
+
+=item * &domainlogo()
+
+Inputs: $domain (usually will be undef)
+
+Returns: A link to a domain logo, if the domain logo exists.
+If the domain logo does not exist, a description of the domain.
+
+=cut
+
###############################################
+sub domainlogo {
+ my $domain = &determinedomain(shift);
+ # See if there is a logo
+ if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
+ my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
+ if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
+ return '
+h1, h2, h3, th { font-family: Arial, Helvetica, sans-serif }
+a:focus { color: red; background: yellow }
+
+
+END
+ my $upperleft='LON-CAPA: '.$title.' ';
+ } elsif ($ENV{'environment.remote'} eq 'off') {
+# No Remote
+ return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
+ $forcereg).
+ '';
+ }
+
+#
+# Top frame rendering, Remote is up
+#
+ return(<
+
+$upperleft
+$messages
+
+
+ $title
+
+ $ENV{'environment.firstname'}
+ $ENV{'environment.middlename'}
+ $ENV{'environment.lastname'}
+ $ENV{'environment.generation'}
+
+
+
+
+$role
+
+$realm
+
-CSV (comma separated values, spreadsheet)
-Space separated
-Tabulator separated
-HTML/XML
-
-ENDUPFORM
+ my %Types = (
+ csv => &mt('CSV (comma separated values, spreadsheet)'),
+ space => &mt('Space separated'),
+ tab => &mt('Tabulator separated'),
+# xml => &mt('HTML/XML'),
+ );
+ my $Str = '';
+ foreach my $type (sort(keys(%Types))) {
+ $Str .= ''.$Types{$type}." \n";
+ }
+ $Str .= " \n";
+ return $Str;
}
-=item csv_print_samples($r,$records)
+######################################################
+######################################################
+
+=pod
+
+=item * csv_print_samples($r,$records)
Prints a table of sample values from each column uploaded $r is an
Apache Request ref, $records is an arrayref from
@@ -1177,15 +2654,18 @@ Apache Request ref, $records is an array
=cut
+######################################################
+######################################################
sub csv_print_samples {
my ($r,$records) = @_;
my (%sone,%stwo,%sthree);
%sone=&record_sep($$records[0]);
if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
-
- $r->print('Samples');
- foreach (sort({$a <=> $b} keys(%sone))) { $r->print('Column '.($_+1).' '); }
+ #
+ $r->print(&mt('Samples').'');
+ foreach (sort({$a <=> $b} keys(%sone))) {
+ $r->print(''.&mt('Column [_1]',($_+1)).' '); }
$r->print(' ');
foreach my $hash (\%sone,\%stwo,\%sthree) {
$r->print('');
@@ -1199,21 +2679,31 @@ sub csv_print_samples {
$r->print('
Attribute Column '.
+ ''.&mt('Attribute').' '.
+ ''.&mt('Column').' '."\n");
foreach (@$d) {
my ($value,$display)=@{ $_ };
$r->print(''.$display.' ');
@@ -1231,7 +2721,12 @@ sub csv_print_select_table {
return $i;
}
-=item csv_samples_select_table($r,$records,$d)
+######################################################
+######################################################
+
+=pod
+
+=item * csv_samples_select_table($r,$records,$d)
Prints a table of sample values from the upload and can make associate samples to internal names.
@@ -1241,22 +2736,25 @@ $d is an array of 2 element arrays (inte
=cut
+######################################################
+######################################################
sub csv_samples_select_table {
my ($r,$records,$d) = @_;
my %sone; my %stwo; my %sthree;
my $i=0;
-
- $r->print('Field Samples '.
+ &mt('Field').' '.&mt('Samples').' print('');
foreach (@$d) {
my ($value,$display)=@{ $_ };
- $r->print(''.$display.' ');
+ $r->print(''.$display.' ');
}
$r->print(' ');
if (defined($sone{$_})) { $r->print($sone{$_}."\n"); }
@@ -1268,104 +2766,581 @@ sub csv_samples_select_table {
$i--;
return($i);
}
-1;
-__END__;
+
+######################################################
+######################################################
+
+=pod
+
+=item clean_excel_name($name)
+
+Returns a replacement for $name which does not contain any illegal characters.
+
+=cut
+
+######################################################
+######################################################
+sub clean_excel_name {
+ my ($name) = @_;
+ $name =~ s/[:\*\?\/\\]//g;
+ if (length($name) > 31) {
+ $name = substr($name,0,31);
+ }
+ return $name;
+}
=pod
+=item * check_if_partid_hidden($id,$symb,$udom,$uname)
+
+Returns either 1 or undef
+
+1 if the part is to be hidden, undef if it is to be shown
+
+Arguments are:
+
+$id the id of the part to be checked
+$symb, optional the symb of the resource to check
+$udom, optional the domain of the user to check for
+$uname, optional the username of the user to check for
+
+=cut
+
+sub check_if_partid_hidden {
+ my ($id,$symb,$udom,$uname) = @_;
+ my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
+ $symb,$udom,$uname);
+ my $truth=1;
+ #if the string starts with !, then the list is the list to show not hide
+ if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
+ my @hiddenlist=split(/,/,$hiddenparts);
+ foreach my $checkid (@hiddenlist) {
+ if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
+ }
+ return !$truth;
+}
+
+
+############################################################
+############################################################
+
+=pod
+
+=back
+
+=head1 cgi-bin script and graphing routines
+
+=over 4
+
+=item get_cgi_id
+
+Inputs: none
+
+Returns an id which can be used to pass environment variables
+to various cgi-bin scripts. These environment variables will
+be removed from the users environment after a given time by
+the routine &Apache::lonnet::transfer_profile_to_env.
+
+=cut
+
+############################################################
+############################################################
+my $uniq=0;
+sub get_cgi_id {
+ $uniq=($uniq+1)%100000;
+ return (time.'_'.$uniq);
+}
+
+############################################################
+############################################################
+
+=pod
+
+=item DrawBarGraph
+
+Facilitates the plotting of data in a (stacked) bar graph.
+Puts plot definition data into the users environment in order for
+graph.png to plot it. Returns an '.$linktext.' ';
+}
+
+#######################################################
+#######################################################
+
+=pod
+
+=head1 Course Environment Routines
=over 4
-=item get_unprocessed_cgi($query,$possible_names)
+=item &restore_course_settings
-Modify the %ENV hash to contain unprocessed CGI form parameters held in
-$query. The parameters listed in $possible_names (an array reference),
-will be set in $ENV{'form.name'} if they do not already exist.
+=item &store_course_settings
-Typically called with $ENV{'QUERY_STRING'} as the first parameter.
-$possible_names is an ref to an array of form element names. As an example:
-get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
-will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set.
+Restores/Store indicated form parameters from the course environment.
+Will not overwrite existing values of the form parameters.
-=item cacheheader()
+Inputs:
+a scalar describing the data (e.g. 'chart', 'problem_analysis')
+
+a hash ref describing the data to be stored. For example:
+
+%Save_Parameters = ('Status' => 'scalar',
+ 'chartoutputmode' => 'scalar',
+ 'chartoutputdata' => 'scalar',
+ 'Section' => 'array',
+ 'StudentData' => 'array',
+ 'Maps' => 'array');
-returns cache-controlling header code
+Returns: both routines return nothing
-=item nocache()
+=cut
-specifies header code to not have cache
+#######################################################
+#######################################################
+sub store_course_settings {
+ # save to the environment
+ # appenv the same items, just to be safe
+ my $courseid = $ENV{'request.course.id'};
+ my $coursedom = $ENV{'course.'.$courseid.'.domain'};
+ my ($prefix,$Settings) = @_;
+ my %SaveHash;
+ my %AppHash;
+ while (my ($setting,$type) = each(%$Settings)) {
+ my $basename = 'env.internal.'.$prefix.'.'.$setting;
+ my $envname = 'course.'.$courseid.'.'.$basename;
+ if (exists($ENV{'form.'.$setting})) {
+ # Save this value away
+ if ($type eq 'scalar' &&
+ (! exists($ENV{$envname}) ||
+ $ENV{$envname} ne $ENV{'form.'.$setting})) {
+ $SaveHash{$basename} = $ENV{'form.'.$setting};
+ $AppHash{$envname} = $ENV{'form.'.$setting};
+ } elsif ($type eq 'array') {
+ my $stored_form;
+ if (ref($ENV{'form.'.$setting})) {
+ $stored_form = join(',',
+ map {
+ &Apache::lonnet::escape($_);
+ } sort(@{$ENV{'form.'.$setting}}));
+ } else {
+ $stored_form =
+ &Apache::lonnet::escape($ENV{'form.'.$setting});
+ }
+ # Determine if the array contents are the same.
+ if ($stored_form ne $ENV{$envname}) {
+ $SaveHash{$basename} = $stored_form;
+ $AppHash{$envname} = $stored_form;
+ }
+ }
+ }
+ }
+ my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
+ $coursedom,
+ $ENV{'course.'.$courseid.'.num'});
+ if ($put_result !~ /^(ok|delayed)/) {
+ &Apache::lonnet::logthis('unable to save form parameters, '.
+ 'got error:'.$put_result);
+ }
+ # Make sure these settings stick around in this session, too
+ &Apache::lonnet::appenv(%AppHash);
+ return;
+}
-=item add_to_env($name,$value)
+sub restore_course_settings {
+ my $courseid = $ENV{'request.course.id'};
+ my ($prefix,$Settings) = @_;
+ while (my ($setting,$type) = each(%$Settings)) {
+ next if (exists($ENV{'form.'.$setting}));
+ my $envname = 'course.'.$courseid.'.env.internal.'.$prefix.
+ '.'.$setting;
+ if (exists($ENV{$envname})) {
+ if ($type eq 'scalar') {
+ $ENV{'form.'.$setting} = $ENV{$envname};
+ } elsif ($type eq 'array') {
+ $ENV{'form.'.$setting} = [
+ map {
+ &Apache::lonnet::unescape($_);
+ } split(',',$ENV{$envname})
+ ];
+ }
+ }
+ }
+}
-adds $name to the %ENV hash with value
-$value, if $name already exists, the entry is converted to an array
-reference and $value is added to the array.
+############################################################
+############################################################
+
+sub propath {
+ my ($udom,$uname)=@_;
+ $udom=~s/\W//g;
+ $uname=~s/\W//g;
+ my $subdir=$uname.'__';
+ $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
+ my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
+ return $proname;
+}
+
+sub icon {
+ my ($file)=@_;
+ my $curfext = (split(/\./,$file))[-1];
+ my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
+ my $embstyle = &Apache::loncommon::fileembstyle($curfext);
+ if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
+ if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
+ $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
+ $curfext.".gif") {
+ $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
+ $curfext.".gif";
+ }
+ }
+ return $iconname;
+}
+
+=pod
=back
=cut
+
+1;
+__END__;
+