--- loncom/interface/courseclassifier.pm	2007/10/06 04:32:49	1.3
+++ loncom/interface/courseclassifier.pm	2023/07/10 01:55:15	1.30
@@ -1,3 +1,7 @@
+# The LearningOnline Network with CAPA
+# Utilities for classifying courses based on institutional code
+#
+# $Id: courseclassifier.pm,v 1.30 2023/07/10 01:55:15 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,28 +30,17 @@ package Apache::courseclassifier;
 use strict;
 use lib '/home/httpd/lib/perl/';
 use Apache::lonnet;
+use Apache::loncommon;
+use Apache::lonlocal;
 use LONCAPA;
 
-sub retrieve_instcodes {
-    my ($coursecodes,$codedom) = @_;
-    my $totcodes;
-    my %courses = &Apache::lonnet::courseiddump($codedom,'.',1,'.','.','.',                                                undef,undef,'Course');
-    foreach my $course (keys(%courses)) {
-        if (ref($courses{$course}) eq 'HASH') {
-            $$coursecodes{$course} = $courses{$course}{'inst_code'};
-            $totcodes ++;
-        }
-    }
-    return $totcodes;
-}
-
 sub sort_cats {
     my ($num,$cat_order,$codetitles,$idsarrayref,$sorted) = @_;
     my @unsorted = @{$idsarrayref};
     if (defined($$cat_order{$$codetitles[$num]})) {
         foreach my $item (@{$$cat_order{$$codetitles[$num]}}) {
             if (grep/^\Q$item\E$/,@unsorted) {
-                push @{$sorted}, $item;
+                push(@{$sorted},$item);
             }
         }
     } else {
@@ -76,7 +69,8 @@ sub recurse_list {
                     push @{$$idarrays{$$codetitles[2]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}}, $$codes{$cid}{$$codetitles[2]};
                 }
             } else {
-                @{$$idarrays{$$codetitles[2]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}} = ("$$codes{$cid}{$$codetitles[2]}");            }
+                @{$$idarrays{$$codetitles[2]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}} = ("$$codes{$cid}{$$codetitles[2]}");
+            }
         } else {
             %{$$idarrays{$$codetitles[2]}{$$codes{$cid}{$$codetitles[0]}}} = ();
             @{$$idarrays{$$codetitles[2]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}} = ("$$codes{$cid}{$$codetitles[2]}");
@@ -117,7 +111,8 @@ sub recurse_list {
                 }
             } else {
                 %{$$idarrays{$$codetitles[4]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}} = ();
-                %{$$idarrays{$$codetitles[4]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}{$$codes{$cid}{$$codetitles[2]}}} = ();                @{$$idarrays{$$codetitles[4]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}{$$codes{$cid}{$$codetitles[2]}}{$$codes{$cid}{$$codetitles[3]}}} = ("$$codes{$cid}{$$codetitles[4]}");
+                %{$$idarrays{$$codetitles[4]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}{$$codes{$cid}{$$codetitles[2]}}} = ();
+                @{$$idarrays{$$codetitles[4]}{$$codes{$cid}{$$codetitles[0]}}{$$codes{$cid}{$$codetitles[1]}}{$$codes{$cid}{$$codetitles[2]}}{$$codes{$cid}{$$codetitles[3]}}} = ("$$codes{$cid}{$$codetitles[4]}");
             }
         } else {
             %{$$idarrays{$$codetitles[4]}{$$codes{$cid}{$$codetitles[0]}}} = ();
@@ -138,7 +133,7 @@ sub build_code_selections {
     for (my $i=1; $i<@{$codetitles}; $i++) {
         %{$idarrays{$$codetitles[$i]}} = ();
     }
-    foreach my $cid (sort keys %{$codes}) {
+    foreach my $cid (sort(keys(%{$codes}))) {
         &recurse_list($cid,$codetitles,$codes,0,\%idarrays);
     }
     for (my $num=0; $num<@{$codetitles}; $num++) {
@@ -159,7 +154,7 @@ sub build_code_selections {
         } elsif ($num == 1) {
             %{$$idlist{$$codetitles[1]}} = ();
             %{$$idlist_titles{$$codetitles[1]}} = ();
-            foreach my $key_a (keys %{$idarrays{$$codetitles[1]}}) {
+            foreach my $key_a (keys(%{$idarrays{$$codetitles[1]}})) {
                 my @sorted_a = ();
                 my @sorted_a_titles = ();
                 &sort_cats($num,$cat_order,$codetitles,\@{$idarrays{$$codetitles[1]}{$key_a}},\@sorted_a);
@@ -177,10 +172,10 @@ sub build_code_selections {
         } elsif ($num == 2) {
             %{$$idlist{$$codetitles[2]}} = ();
             %{$$idlist_titles{$$codetitles[2]}} = ();
-            foreach my $key_a (keys %{$idarrays{$$codetitles[2]}}) {
+            foreach my $key_a (keys(%{$idarrays{$$codetitles[2]}})) {
                 %{$$idlist{$$codetitles[2]}{$key_a}} = ();
                 %{$$idlist_titles{$$codetitles[2]}{$key_a}} = ();
-                foreach my $key_b (keys %{$idarrays{$$codetitles[2]}{$key_a}}) {
+                foreach my $key_b (keys(%{$idarrays{$$codetitles[2]}{$key_a}})) {
                     my @sorted_b = ();
                     my @sorted_b_titles = ();
                     &sort_cats($num,$cat_order,$codetitles,\@{$idarrays{$$codetitles[2]}{$key_a}{$key_b}},\@sorted_b);
@@ -198,11 +193,11 @@ sub build_code_selections {
             }
         } elsif ($num == 3) {
             %{$$idlist{$$codetitles[3]}} = ();
-            foreach my $key_a (keys %{$idarrays{$$codetitles[3]}}) {
+            foreach my $key_a (keys(%{$idarrays{$$codetitles[3]}})) {
                 %{$$idlist{$$codetitles[3]}{$key_a}} = ();
-                foreach my $key_b (keys %{$idarrays{$$codetitles[3]}{$key_a}}) {
+                foreach my $key_b (keys(%{$idarrays{$$codetitles[3]}{$key_a}})) {
                     %{$$idlist{$$codetitles[3]}{$key_a}{$key_b}} = ();
-                    foreach my $key_c (keys %{$idarrays{$$codetitles[3]}{$key_a}{$key_b}}) {
+                    foreach my $key_c (keys(%{$idarrays{$$codetitles[3]}{$key_a}{$key_b}})) {
                         my @sorted_c = ();
                         my @sorted_c_titles = ();
                         &sort_cats($num,$cat_order,$codetitles,\@{$idarrays{$$codetitles[3]}{$key_a}{$key_b}{$key_c}},\@sorted_c);
@@ -214,20 +209,20 @@ sub build_code_selections {
                         $$idlist{$$codetitles[3]}{$key_a}{$key_b}{$key_c} = join('","',@sorted_c);
                         $$idnums{$$codetitles[3]}{$key_a}{$key_b}{$key_c} = scalar(@sorted_c);
                         if (defined($$cat_titles{$$codetitles[3]})) {
-                            $$idlist_titles{$$codetitles[2]}{$key_a}{$key_b} = join('","',@sorted_c_titles);
+                            $$idlist_titles{$$codetitles[3]}{$key_a}{$key_b}{$key_c} = join('","',@sorted_c_titles);
                         }
                     }
                 }
             }
         } elsif ($num == 4) {
             %{$$idlist{$$codetitles[4]}} = ();
-            foreach my $key_a (keys %{$idarrays{$$codetitles[4]}}) {
+            foreach my $key_a (keys(%{$idarrays{$$codetitles[4]}})) {
                 %{$$idlist{$$codetitles[4]}{$key_a}} = ();
-                foreach my $key_b (keys %{$idarrays{$$codetitles[4]}{$key_a}}) {
+                foreach my $key_b (keys(%{$idarrays{$$codetitles[4]}{$key_a}})) {
                     %{$$idlist{$$codetitles[4]}{$key_a}{$key_b}} = ();
-                    foreach my $key_c (keys %{$idarrays{$$codetitles[4]}{$key_a}{$key_b}}) {
+                    foreach my $key_c (keys(%{$idarrays{$$codetitles[4]}{$key_a}{$key_b}})) {
                         %{$$idlist{$$codetitles[4]}{$key_a}{$key_b}{$key_c}} = ();
-                        foreach my $key_d (keys %{$idarrays{$$codetitles[4]}{$key_a}{$key_b}{$key_c}}) {
+                        foreach my $key_d (keys(%{$idarrays{$$codetitles[4]}{$key_a}{$key_b}{$key_c}})) {
                             my @sorted_d = ();
                             my @sorted_d_titles = ();
                             &sort_cats($num,$cat_order,$codetitles,$idarrays{$$codetitles[4]}{$key_a}{$key_b}{$key_c}{$key_d},\@sorted_d);
@@ -238,6 +233,9 @@ sub build_code_selections {
                             }
                             $$idlist{$$codetitles[4]}{$key_a}{$key_b}{$key_c}{$key_d} = join('","',@sorted_d);
                             $$idnums{$$codetitles[4]}{$key_a}{$key_b}{$key_c}{$key_d} = scalar(@sorted_d);
+                            if (defined($$cat_titles{$$codetitles[4]})) {
+                                $$idlist_titles{$$codetitles[3]}{$key_a}{$key_b}{$key_c}{$key_d} = join('","',@sorted_d_titles);
+                            }
                         }
                     }
                 }
@@ -247,14 +245,20 @@ sub build_code_selections {
 }
 
 sub javascript_code_selections {
-    my ($formname,@codetitles) = @_;
+    my ($formname,$codetitlesref,$knowncodes,$sectionlist) = @_;
+    return unless (ref($codetitlesref) eq 'ARRAY');
+    my @codetitles = @{$codetitlesref};
     my $numtitles = @codetitles;
+    my %lt = &Apache::lonlocal::texthash(
+                      Select => 'Select',
+                      Pick   => 'Pick',
+             );
     my $output = (<<END_OF_BLOCK);
  var display = new Array($numtitles)
  if (caller == "" || caller == "$codetitles[0]") {
      if (caller == "") {
          document.$formname.Year.length = 0
-         document.$formname.Year.options[0] = new Option("Select","-1",true,true)
+         document.$formname.Year.options[0] = new Option("$lt{'Select'}","-1",true,true)
          display[0] = new Array(idyears.length)
          for (var i=0; i<idyears.length; i++) {
              display[0][i] = idyears[i]
@@ -275,13 +279,13 @@ sub javascript_code_selections {
      document.$formname.Semester.length = 0
      document.$formname.Department.length = 0;
      document.$formname.Number.length = 0
-     document.$formname.Department.options[0] = new Option("<-Pick $codetitles[1]","-1",true,true)
-     document.$formname.Number.options[0] = new Option("<-Pick $codetitles[2]","-1",true,true)
+     document.$formname.Department.options[0] = new Option("<-$lt{'Pick'} $codetitles[1]","-1",true,true)
+     document.$formname.Number.options[0] = new Option("<-$lt{'Pick'} $codetitles[2]","-1",true,true)
      if (idyr == 0 || caller == "") {
-         document.$formname.Semester.options[0] = new Option("<-Pick $codetitles[0]","-1",true,true)
+         document.$formname.Semester.options[0] = new Option("<-$lt{'Pick'} $codetitles[0]","-1",true,true)
      }
      else {
-         document.$formname.Semester.options[0] = new Option("Select","-1",true,true)
+         document.$formname.Semester.options[0] = new Option("$lt{'Select'}","-1",true,true)
          display[1] = new Array(idsems[idyr-1].length)
          for (var i=0; i<idsems[idyr-1].length; i++) {
              display[1][i] = idsems[idyr-1][i]
@@ -300,10 +304,10 @@ sub javascript_code_selections {
    document.$formname.Number.length = 0
    document.$formname.Number.options[0] = new Option("<-Pick $codetitles[2]","-1",true,true)
    if (idsem == 0) {
-     document.$formname.Department.options[0] = new Option("<-Pick $codetitles[1]","-1",true,true)
+     document.$formname.Department.options[0] = new Option("<-$lt{'Pick'} $codetitles[1]","-1",true,true)
    }
    else {
-    document.$formname.Department.options[0] = new Option("Select","-1",true,true)
+    document.$formname.Department.options[0] = new Option("$lt{'Select'}","-1",true,true)
     display[2] = new Array(idcodes[idyr-1][idsem-1].length)
     for (var i=0; i<idcodes[idyr-1][idsem-1].length; i++) {
       display[2][i] = idcodes[idyr-1][idsem-1][i]
@@ -320,7 +324,7 @@ sub javascript_code_selections {
  if (caller == "$codetitles[2]") {
    document.$formname.Number.length = 0
    if (iddept == 0) {
-     document.$formname.Number.options[0] = new Option("<-Pick $codetitles[2]","-1",true,true)
+     document.$formname.Number.options[0] = new Option("<-$lt{'Pick'} $codetitles[2]","-1",true,true)
    }
    else {
     document.$formname.Number.options[0] = new Option("Select","-1",true,true)
@@ -338,15 +342,91 @@ sub javascript_code_selections {
    document.$formname.Number.selectedIndex = 0
  }
 }
+END_OF_BLOCK
+
+    if ((ref($knowncodes) eq 'HASH') && (keys(%{$knowncodes}) > 0)) {
+        my @standardnames = &Apache::loncommon::get_standard_codeitems();
+        my (%local_to_standard,$currstr);
+        for (my $i=0; $i<@codetitles; $i++) {
+            $local_to_standard{$codetitles[$i]} = $standardnames[$i];
+        }
+        $output .= <<"ENDJS";
+
+function initialize_codes() {
+ENDJS
+        for (my $i=0; $i<@codetitles-1; $i++) {
+            my $item = $local_to_standard{$codetitles[$i]};
+            $currstr .= $knowncodes->{$codetitles[$i]};
+            if ($knowncodes->{$codetitles[$i]} != -1) {
+                $output .= '
+    for (var j=0; j<document.'.$formname.'.'.$item.'.length; j++) {
+        if (document.'.$formname.'.'.$item.'[j].value == "'.$knowncodes->{$codetitles[$i]}.'") {
+            document.'.$formname.'.'.$item.'.selectedIndex = j;
+        }
+    }
+';
+            }
+            $output .= '   courseSet('."'$codetitles[$i]'".')'."\n";
+        }
+        my $lastcodetitle =  $local_to_standard{$codetitles[-1]};
+        $currstr .= $knowncodes->{$codetitles[-1]};
+        if ($knowncodes->{$codetitles[-1]} != -1) {
+            $output .= '
+    for (var j=0; j<document.'.$formname.'.'.$lastcodetitle.'.length; j++) {
+        if (document.'.$formname.'.'.$lastcodetitle.'[j].value == "'.$knowncodes->{$codetitles[-1]}.'") {
+            document.'.$formname.'.'.$lastcodetitle.'.selectedIndex = j;
+        }
+    }
+';
+        }
+        $output .= "    return;\n}\n";
+        if ($sectionlist) {
+            $output .= '
+function toggleSecVis() {
+    var currcode = "";
+    var crscode = '."'$currstr'".';
+';
+            for (my $i=0; $i<@codetitles-1; $i++) {
+                my $item = $local_to_standard{$codetitles[$i]};
+                $output .= 'currcode += document.'.$formname.'.'.$item.'.options[document.'.$formname.'.'.$item.'.selectedIndex].value;'."\n";
+            }
+            my $lastcodetitle =  $local_to_standard{$codetitles[-1]};
+            if ($lastcodetitle ne '') {
+                if ($knowncodes->{$codetitles[-1]} != -1) {
+                    $output .= 'currcode += document.'.$formname.'.'.$lastcodetitle.'.options[document.'.$formname.'.'.$lastcodetitle.'.selectedIndex].value;'."\n";
+                }
+            }
+            $output .= <<"ENDSEC";
+    var showlist = 'none';
+    var showbox = 'inline';
+    if ((crscode != '') && (currcode == crscode)) {
+        showlist = 'inline';
+        showbox = 'none';
+    }
+    if (document.getElementById('LC_helpdesk_sectionlist')) {
+        document.getElementById('LC_helpdesk_sectionlist').style.display = showlist;
+    }
+    if (document.getElementById('LC_helpdesk_section')) {
+        document.getElementById('LC_helpdesk_section').style.display = showbox;
+    }
+    return;
+}
+
+ENDSEC
+
+        }
+    } else {
+        $output .= <<"END_OF_JS";
 
 function initialize_codes() {
     courseSet();
     return;
 }
-END_OF_BLOCK
+END_OF_JS
+    }
+    return $output;
 }
 
-
 sub javascript_definitions {
     my ($codetitles,$idlist,$idlist_titles,$idnums,$cat_titles) = @_;
     my $numtitles = @{$codetitles};
@@ -423,6 +503,7 @@ sub javascript_definitions {
 sub courseset_js_start {
     my ($formname,$longtitles_str,$allidlist) = @_;
     my $output = <<END;
+
 function courseSet(caller) {
     var longtitles = new Array ("$longtitles_str");
     var idyr = document.$formname.Year.selectedIndex
@@ -434,5 +515,577 @@ END
     return $output;
 }
 
+sub instcode_selectors_data {
+    my ($codedom,$formname,$cat_items,$codetitles,$cat_titles,$cat_order,$officialjs) = @_;
+    my ($jscript,$codes,%idlist,%idnums,%idlist_titles,%by_year,%by_sem,%by_dept);
+    my ($numtitles,$lasttitle,$totcodes);
+    my $instcats = &Apache::lonnet::get_dom_instcats($codedom);
+    if (ref($instcats) eq 'HASH') {
+        if ((ref($instcats->{'codetitles'}) eq 'ARRAY') && (ref($instcats->{'codes'}) eq 'HASH') &&
+            (ref($instcats->{'cat_titles'}) eq 'HASH') && (ref($instcats->{'cat_order'}) eq 'HASH')) {
+            %{$codes} = %{$instcats->{'codes'}};
+            @{$codetitles} = @{$instcats->{'codetitles'}};
+            %{$cat_titles} = %{$instcats->{'cat_titles'}};
+            %{$cat_order} = %{$instcats->{'cat_order'}};
+            $totcodes = scalar(keys(%{$codes}));
+            if ((!$totcodes) && (exists($instcats->{'totcodes'}))) {
+                $totcodes = $instcats->{'totcodes'};
+            }
+            &build_code_selections($codes,$codetitles,$cat_titles,$cat_order,
+                                   \%idlist,\%idnums,\%idlist_titles);
+            my ($scripttext,$longtitles) =
+                &javascript_definitions($codetitles,\%idlist,\%idlist_titles,
+                                        \%idnums,$cat_titles);
+            my $longtitles_str = join('","',@{$longtitles});
+            my $allidlist = $idlist{$codetitles->[0]};
+            $numtitles = @{$codetitles};
+            $lasttitle = $numtitles;
+            if ($numtitles > 4) {
+                $lasttitle = 4;
+            }
+            if ($numtitles == 0) {
+                if (!defined($env{'form.state'})) {
+                    $env{'form.state'} = 'listing';
+                }
+            } else {
+                my @data = ('top');
+                for (my $k=0; $k<$lasttitle; $k++) {
+                    my $cat = $codetitles->[$k];
+                    my $level = 1;
+                    $level = &recurse_options($codetitles->[$k],$idlist{$codetitles->[$k]},$level,$cat,$cat_items,\@data,\%by_year,\%by_sem,\%by_dept);
+                }
+                $scripttext .= &build_javascript(\%by_year,\%by_sem,\%by_dept,$cat_order,$codetitles);
+                if ($officialjs) {
+                    $jscript .= '
+
+function toggleOfficial() {
+   var choice; 
+   for (var i=0; i<document.'.$formname.'.official.length; i++) {
+       if (document.'.$formname.'.official[i].checked) {
+           choice = document.'.$formname.'.official[i].value;
+       }
+   }
+   if (choice == "off") {
+       if (document.getElementById("instcodes")) {
+           document.getElementById("instcodes").style.display = "none";
+       }';
+                    for (my $i=0; $i<@{$codetitles}-1; $i++) {
+                        $jscript .= '
+       document.'.$formname.'.'.$codetitles->[$i].'.selectedIndex = 0;';
+                    }
+    $jscript .= '
+   } else {
+       if (document.getElementById("instcodes")) { 
+           document.getElementById("instcodes").style.display = "block";
+       }
+   }
+}
+
+function setOfficial(caller) {
+   if (typeof(caller) != "undefined") {
+       if (caller.options[caller.selectedIndex].value != 0) {
+           if (document.'.$formname.'.official.length > 0) {
+               for (var j=0; j<document.'.$formname.'.official.length; j++) {
+                   if (document.'.$formname.'.official[j].value == "on") {
+                       document.'.$formname.'.official[j].checked = true;
+                   }
+               }
+            }
+        }
+    }
+    return;
+}
+
+';
+
+                    $officialjs = 'setOfficial(caller);';
+                }
+                $jscript .= &javascript_select_filler($formname,$scripttext,$codetitles,$longtitles_str,$allidlist,$officialjs);
+                if ($env{'form.state'} eq 'listing') {
+                    my @standardnames = &Apache::loncommon::get_standard_codeitems();
+                    my %local_to_standard;
+                    if (ref($codetitles) eq 'ARRAY') {
+                        for (my $i=0; $i<@{$codetitles}; $i++) {
+                            $local_to_standard{$codetitles->[$i]} = $standardnames[$i];
+                        }
+                    }
+                    $jscript .= '
+function setElements() {
+';
+                    for (my $i=0; $i<@{$codetitles}-1; $i++) {
+                        my $item = $local_to_standard{$codetitles->[$i]};
+                        if ($env{'form.'.$item} != -1) {
+                            $jscript .= '
+    for (var j=0; j<document.'.$formname.'.'.$item.'.length; j++) {
+        if (document.'.$formname.'.'.$item.'[j].value == "'.$env{'form.'.$item}.'") {
+            document.'.$formname.'.'.$item.'.selectedIndex = j;
+        }
+    }
+';
+                        }
+                    }
+                    $jscript .= '   courseSet()'."\n";
+                    my $lastcodetitle =  $local_to_standard{$codetitles->[-1]};
+                    if ($env{'form.'.$lastcodetitle} != -1) {
+                        $jscript .= '
+    for (var j=0; j<document.'.$formname.'.'.$lastcodetitle.'.length; j++) {
+        if (document.'.$formname.'.'.$lastcodetitle.'[j].value == "'.$env{'form.'.$lastcodetitle}.'") {
+            document.'.$formname.'.'.$lastcodetitle.'.selectedIndex = j;
+        }
+    }
+';
+                    }
+                    $jscript .= '}';
+                }
+            }
+        }
+    }
+    return ($jscript,$totcodes,$numtitles,$lasttitle);
+}
+
+sub build_instcode_selectors {
+    my ($numtitles,$lasttitle,$cat_items,$codetitles,$cat_titles,$cat_order,$official,$class,$id,$noedit) = @_;
+    my $output;
+    my @standardnames = &Apache::loncommon::get_standard_codeitems();
+    if ($numtitles > 0) {
+        my $style;
+        if ($official eq 'off') {
+            $style = ' style="display: none"';
+        }
+        if ($id eq '') {
+            $id = 'instcodes';
+        }
+        my $disabled;
+        if ($noedit) {
+            $disabled = ' disabled="disabled"';
+        }
+        $output .= '<div id="'.$id.'"'.$style.'><table><tr>';
+        for (my $k=0; $k<$lasttitle-1; $k++) {
+            my (@items,@unsorted);
+            if (ref($cat_items->{$codetitles->[$k]}) eq 'ARRAY') {
+                @unsorted = @{$cat_items->{$codetitles->[$k]}};
+            }
+            &sort_cats($k,$cat_order,$codetitles,\@unsorted,\@items);
+            my @longitems;
+            if (defined($cat_titles->{$codetitles->[$k]})) {
+                foreach my $item (@items) {
+                    push(@longitems,$cat_titles->{$codetitles->[$k]}{$item});
+                }
+            } else {
+                @longitems = @items;
+            }
+            $output .= '<td align="center">'.$codetitles->[$k].'<br />'."\n".
+                       '<select name="'.$standardnames[$k].'" onchange="courseSet(this)"';
+            if ($class) {
+                $output .= ' class="'.$class.'"';
+            }
+            $output .= $disabled.'>'."\n".'<option value="0">'.&mt('All').'</option>'."\n";
+            for (my $i=0; $i<@items; $i++) {
+                if ($longitems[$i] eq '') {
+                    $longitems[$i] = $items[$i];
+                }
+                $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
+            }
+            $output .= '</select></td>';
+        }
+        $output .= '<td align="center">'.$codetitles->[$lasttitle-1].'<br />'."\n".
+                   '<select name="'.$standardnames[$lasttitle-1].'"';
+        if ($class) {
+            $output .= ' class="'.$class.'"';
+        }
+        $output .= $disabled.'>'."\n".
+                   '<option value="0">'.&mt('All')."\n".
+                   '</option>'."\n".'</select>'."\n".
+                   '</td></tr></table>'."\n";
+        if ($numtitles > 4) {
+            $output .= '<br /><br />'.$codetitles->[$numtitles-1].'<br />'."\n".
+                       '<input type="text" name="'.$standardnames[$numtitles-1].
+                       '"'.$disabled.' /><br />'."\n";
+        }
+        $output .= '</div>';
+    }
+    return $output;
+}
+
+sub instcode_selectors {
+    my ($codedom,$formname,$officialjs,$codetitles) = @_;
+    my ($output,%cat_titles,%cat_order,%cat_items);
+    my ($jscript,$totcodes,$numtitles,$lasttitle) =
+        &instcode_selectors_data($codedom,$formname,\%cat_items,$codetitles,
+                                 \%cat_titles,\%cat_order,$officialjs);
+    if ($numtitles > 0) {
+        my $official = ' checked="checked" ';
+        my $unofficial = '';
+        if (($formname eq 'filterpicker') && ($env{'form.official'} eq 'off')) {
+            $unofficial = $official;
+            $official = '';
+        }
+        $output .= '<span class="LC_nobreak">'.&mt('Official course:').'&nbsp;<label>'.
+                   '<input type="radio" name="official" value="on"'.$official.
+                   ' onclick="toggleOfficial();" />'.&mt('Yes').'</label>'.
+                   ('&nbsp;'x3).'<label>'.
+                   '<input type="radio" name="official" value="off"'.$unofficial.
+                   ' onclick="toggleOfficial();" />'.&mt('No').'</label></span><br />'.
+                   &build_instcode_selectors($numtitles,$lasttitle,\%cat_items,$codetitles,
+                                             \%cat_titles,\%cat_order,$env{'form.official'})."\n".
+                   '<input type="hidden" name="numtitles" value="'.$numtitles.'" />'."\n".
+                   '<input type="hidden" name="state" value="listing" />'."\n";
+    }
+    return ($output,$jscript,$numtitles);
+}
+
+sub recurse_options {
+    my ($currkey,$currlist,$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept) = @_;
+    if (ref($currlist) eq 'HASH') {
+        $level ++;
+        foreach my $key (sort(keys(%{$currlist}))) {
+            $$data[$level-1]= $key;
+            &recurse_options($key,$currlist->{$key},$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept);
+        }
+    } else {
+        $level --;
+        my @contents = split(/","/,$currlist);
+        foreach my $item (@contents) {
+            if (!grep(/^\Q$item\E$/,@{$cat_options->{$cat}})) {
+                push(@{$cat_options->{$cat}},$item);
+            }
+            if ($level == 3) {
+                if (!grep/^\Q$item\E$/,@{$by_year->{$data->[1]}->{$currkey}}) {
+                    push(@{$by_year->{$data->[1]}->{$currkey}},$item);
+                }
+                if (!grep/^\Q$item\E$/,@{$by_sem->{$data->[2]}->{$currkey}}) {
+                    push(@{$by_sem->{$data->[2]}->{$currkey}},$item);
+                }
+                if (!grep/^\Q$item\E$/,@{$by_dept->{$currkey}}) {
+                    push(@{$by_dept->{$currkey}},$item);
+                }
+
+            }
+        }
+    }
+    return $level;
+}
+
+sub build_javascript {
+    my ($by_year,$by_sem,$by_dept,$cat_order,$codetitles) = @_;
+    my @unsorted = keys(%{$by_year});
+    my @sorted_yrs;
+    &sort_cats('0',$cat_order,$codetitles,\@unsorted,\@sorted_yrs);
+    my $output = 'var idcse_by_yr_year = new Array("'.join('","',@sorted_yrs).'");'."\n".
+                 'var idcse_by_yr_dept = new Array('.scalar(@sorted_yrs).');'."\n".
+                 'var idcse_by_yr_num = new Array('.scalar(@sorted_yrs).');'."\n";
+    for (my $i=0; $i<@sorted_yrs; $i++) {
+        my $numkeys = keys(%{$by_year->{$sorted_yrs[$i]}});
+        $output .= " idcse_by_yr_num[$i] = new Array($numkeys);\n";
+        if (ref($by_year->{$sorted_yrs[$i]}) eq 'HASH') {
+            @unsorted = keys(%{$by_year->{$sorted_yrs[$i]}});
+            my @sorted_depts;
+            &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
+            $output .= qq| idcse_by_yr_dept[$i] = new Array ("|.join('","',@sorted_depts).'");'."\n";
+            for (my $j=0; $j<@sorted_depts; $j++) {
+                $output .= qq| idcse_by_yr_num[$i][$j] = new Array ("|;
+                $output .= join('","',sort(@{$by_year->{$sorted_yrs[$i]}->{$sorted_depts[$j]}})).'");'."\n";
+            }
+        }
+    }
+    @unsorted = keys(%{$by_sem});
+    my @sorted_sems;
+    &sort_cats('1',$cat_order,$codetitles,\@unsorted,\@sorted_sems);
+    $output .=  'idcse_by_sem_sems = new Array("'.join('","',@sorted_sems).'");'."\n".
+                'idcse_by_sem_dept = new Array('.scalar(@sorted_sems).');'."\n".
+                'idcse_by_sem_num = new Array('.scalar(@sorted_sems).');'."\n";
+    for (my $i=0; $i<@sorted_sems; $i++) {
+        my $numkeys = keys(%{$by_sem->{$sorted_sems[$i]}});
+        $output .= " idcse_by_sem_num[$i] = new Array($numkeys);\n";
+        if (ref($by_sem->{$sorted_sems[$i]}) eq 'HASH') {
+            @unsorted = keys(%{$by_sem->{$sorted_sems[$i]}});
+            my @sorted_depts;
+            &sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
+            $output .= qq| idcse_by_sem_dept[$i] = new Array("|.join('","',@sorted_depts).'");'."\n";
+            for (my $j=0; $j<@sorted_depts; $j++) {
+                $output .= qq| idcse_by_sem_num[$i][$j] = new Array ("|.join('","',sort(@{$by_sem->{$sorted_sems[$i]}->{$sorted_depts[$j]}})).'");'."\n";
+            }
+        }
+    }
+    @unsorted = keys(%{$by_dept});
+    my @sorted_deps;
+    &sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_deps);
+    $output .= 'idcse_by_dep = new Array('.scalar(@sorted_deps).');'."\n";
+    for (my $k=0; $k<@sorted_deps; $k++) {
+        $output .= qq| idcse_by_dep[$k] = new Array ("|.join('","',sort(@{$by_dept->{$sorted_deps[$k]}})).'");'."\n";
+    }
+    return $output;
+}
+
+sub javascript_select_filler {
+    my ($formname,$scripttext,$codetitles,$longtitles_str,$allidlist,$officialjs) = @_;
+    my $all = &mt('All');
+    my $nocrs = &mt('No courses');
+    my $output = <<END;
+
+function courseSet(caller, onload) {
+    var longtitles = new Array ("$longtitles_str");
+    var valyr = '';
+    var valsem = '';
+    var valdept = '';
+    var valclass = '';
+    if (onload) {
+        valyr = "$env{'form.Year'}";
+        valsem = "$env{'form.Semester'}";
+        valdept = "$env{'form.Department'}";
+        valclass = "$env{'form.Number'}";
+    } else {
+        valyr = document.$formname.Year.options[document.$formname.Year.selectedIndex].value;
+        valsem  = document.$formname.Semester.options[document.$formname.Semester.selectedIndex].value;
+        valdept = document.$formname.Department.options[document.$formname.Department.selectedIndex].value;
+        valclass = document.$formname.Number.options[document.$formname.Number.selectedIndex].value;
+    }
+    var idyears = new Array("$allidlist");
+    var idyr = -1;
+    var idsem = -1;
+    var iddept = -1;
+    document.$formname.Number.length = 0;
+
+    $scripttext
+
+    if (onload) {
+        if (document.$formname.Year.options.length > 0) {
+            for (var i = 0; i< document.$formname.Year.options.length; i++) {
+                if (document.$formname.Year.options[i].value == "$env{'form.Year'}") {
+                    document.$formname.Year.selectedIndex = i;
+                    break;
+                }
+            }
+        }
+        if (document.$formname.Department.options.length > 0) {
+            for (var i = 0; i< document.$formname.Department.options.length; i++) {
+                if (document.$formname.Department.options[i].value == "$env{'form.Department'}") {
+                    document.$formname.Department.selectedIndex = i;
+                    break;
+                }
+            }
+        }
+        if (document.$formname.Semester.options.length > 0) {
+            for (var i = 0; i< document.$formname.Semester.options.length; i++) {
+                if (document.$formname.Semester.options[i].value == "$env{'form.Semester'}") {
+                    document.$formname.Semester.selectedIndex = i;
+                    break;
+                }
+            }
+        }
+    }
+
+    var selYear = document.$formname.Year.selectedIndex-1;
+    var selSemester = document.$formname.Semester.selectedIndex-1;
+    var selDepartment = document.$formname.Department.selectedIndex-1;
+    if (selYear == -1) {
+        if (selSemester == -1) {
+            if (selDepartment > -1) {
+                document.$formname.Number.options[0] =  new Option('$all','0',false,false);
+                for (var k=0; k<idcse_by_dep[selDepartment].length; k++) {
+                    document.$formname.Number.options[k+1] = new Option(idcse_by_dep[selDepartment][k],idcse_by_dep[selDepartment][k],false,false);
+
+                }
+            }
+            else {
+                document.$formname.Number.options[0] = new Option('$all','0',true,true);
+            }
+        }
+        else {
+            if (selDepartment > -1) {
+                for (var i=0; i<idcse_by_sem_sems.length; i++) {
+                    if (idcse_by_sem_sems[i] == valsem) {
+                        idsem = i;
+                    }
+                }
+                if (idsem != -1) {
+                    for (var i=0; i<idcse_by_sem_dept[idsem].length; i++) {
+                        if (idcse_by_sem_dept[idsem][i] == valdept) {
+                            iddept = i;
+                        }
+                    }
+                }
+                if (iddept != -1) {
+                    document.$formname.Number.options[0] =  new Option('$all','0',false,false);
+                    for (var k=0; k<idcse_by_sem_num[idsem][iddept].length; k++) {
+                        document.$formname.Number.options[k+1] = new Option(idcse_by_sem_num[idsem][iddept][k],idcse_by_sem_num[idsem][iddept][k],false,false);
+                    }
+                }
+                else {
+                    document.$formname.Number.options[0] =  new Option('$nocrs','0',true,true);
+                }
+            }
+            else {
+                document.$formname.Number.options[0] = new Option('$all','0',true,true);
+            }
+        }
+    }
+    else {
+        if (selSemester == -1) {
+            if (selDepartment > -1) {
+                for (var i=0; i<idcse_by_yr_year.length; i++) {
+                    if (idcse_by_yr_year[i] == valyr) {
+                        idyr = i;
+                    }
+                }
+                if (idyr != -1) {
+                    for (var i=0; i<idcse_by_yr_dept[idyr].length; i++) {
+                        if (idcse_by_yr_dept[idyr][i] == valdept) {
+                            iddept = i;
+                        }
+                    }
+                }
+                if (iddept != -1) {
+                    document.$formname.Number.options[0] =  new Option('$all','0',false,false);
+                    for (var k=0; k<idcse_by_yr_num[idyr][iddept].length; k++) {
+                        document.$formname.Number.options[k+1] = new Option(idcse_by_yr_num[idyr][iddept][k],idcse_by_yr_num[idyr][iddept][k],false,false);
+                    }
+                }
+                else {
+                    document.$formname.Number.options[0] =  new Option('$nocrs','0',true,true);
+                }
+            }
+            else {
+                document.$formname.Number.options[0] = new Option('$all','0',true,true);
+            }
+        }
+        else {
+            if (selDepartment > -1) {
+                for (var k=0; k<idyears.length; k++) {
+                    if (idyears[k] == valyr) {
+                        idyr = k;
+                    }
+                }
+                if (idyr != -1) {
+                    for (var k=0; k<idsems[idyr].length; k++) {
+                        if (idsems[idyr][k] == valsem) {
+                            idsem = k;
+                        }
+                    }
+                }
+                if (idsem != -1) {
+                    for (var k=0; k<idcodes[idyr][idsem].length; k++) {
+                        if (idcodes[idyr][idsem][k] == valdept) {
+                            iddept = k;
+                        }
+                    }
+                }
+                if (iddept != -1) {
+                    document.$formname.Number.options[0] = new Option('$all','0',false,false);
+                    for (var i=0; i<idcourses[idyr][idsem][iddept].length; i++) {
+                        var display = idcourses[idyr][idsem][iddept][i];
+                        if (longtitles[3] == 1) {
+                            if (idcourseslongs[idyr][idsem][iddept][i] != "") {
+                                display = idcourseslongs[idyr][idsem][iddept][i]
+                            }
+                        }
+                        document.$formname.Number.options[i+1] = new Option(display,idcourses[idyr][idsem][iddept][i],false,false)
+                    }
+                }
+                else {
+                    document.$formname.Number.options[0] =  new Option('$nocrs','0',true,true);
+                }
+            }
+            else {
+                document.$formname.Number.options[0] =  new Option('$all','0',true,true);
+            }
+        }
+        document.$formname.Number.selectedIndex = 0
+    }
+    if (onload) {
+        if (document.$formname.Number.options.length > 0) {
+            for (var i = 0; i< document.$formname.Number.options.length; i++) {
+                if (document.$formname.Number.options[i].value == "$env{'form.Number'}") {
+                    document.$formname.Number.selectedIndex = i;
+                    break;
+                }
+            }
+        }
+    } else {
+        $officialjs
+    }
+}
+END
+    return $output;
+}
+
+sub instcode_search_str {
+    my ($domain,$numtitles,$codetitles) = @_;
+    my $instcode;
+    if (defined($numtitles) && $numtitles == 0) {
+        $instcode = '.+';
+    } else {
+        my (%codedefaults,@code_order);
+        my $defaults_result =
+            &Apache::lonnet::auto_instcode_defaults($domain,\%codedefaults,
+                                                    \@code_order);
+        my @standardnames = &Apache::loncommon::get_standard_codeitems();
+        my %local_to_standard;
+        if (ref($codetitles) eq 'ARRAY') {
+            for (my $i=0; $i<@{$codetitles}; $i++) {
+                $local_to_standard{$codetitles->[$i]} = $standardnames[$i];
+            }
+        }
+        if ($defaults_result eq 'ok') {
+            $instcode ='^';
+            foreach my $loctitle (@code_order) {
+                my $item = $local_to_standard{$loctitle};
+                if ($item ne '') {
+                    if ($env{'form.'.$item} eq '0' ) {
+                        $instcode .= $codedefaults{$loctitle};
+                    } else {
+                        $instcode .= $env{'form.'.$item};
+                    }
+                } else {
+                    $instcode .= '.+';
+                }
+            }
+            $instcode .= '$';
+        } else {
+            $instcode = '.+';
+        }
+    }
+    return $instcode;
+}
+
+sub instcode_from_selectors {
+    my ($cdom,$noregexps) = @_;
+    my $instcode;
+    my (@codetitles,%codedefaults,@code_order);
+    my $instcats = &Apache::lonnet::get_dom_instcats($cdom);
+    if (ref($instcats) eq 'HASH') {
+        if (ref($instcats->{'codetitles'}) eq 'ARRAY') {
+            @codetitles = @{$instcats->{'codetitles'}};
+        }
+    }
+    my $defaults_result =
+        &Apache::lonnet::auto_instcode_defaults($cdom,\%codedefaults,
+                                                \@code_order);
+    if (($defaults_result eq 'ok') && (@codetitles > 0)) {
+        my @standardnames = &Apache::loncommon::get_standard_codeitems();
+        my %local_to_standard;
+        for (my $i=0; $i<@codetitles; $i++) {
+            $local_to_standard{$codetitles[$i]} = $standardnames[$i];
+        }
+        foreach my $loctitle (@code_order) {
+            my $category = $local_to_standard{$loctitle};
+            if ($category ne '') {
+                if ($env{'form.'.$category} eq '-1' ) {
+                    if ($noregexps) {
+                        $instcode .= ' ';
+                    } else {
+                        $instcode .= $codedefaults{$category};
+                    }
+                } else {
+                    $instcode .= $env{'form.'.$category};
+                }
+            } else {
+                $instcode .= '.+';
+            }
+        }
+    }
+    return $instcode;
+}
+
 1;