--- loncom/interface/loncommon.pm	2006/06/30 04:08:07	1.411
+++ loncom/interface/loncommon.pm	2006/07/07 19:34:20	1.425
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.411 2006/06/30 04:08:07 albertel Exp $
+# $Id: loncommon.pm,v 1.425 2006/07/07 19:34:20 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -3107,6 +3107,7 @@ sub standard_css {
     my $data_table_head      = $tabbg;
     my $data_table_light     = '#EEEEEE';
     my $data_table_dark      = '#DDD';
+    my $data_table_darker    = '#CCC';
     my $data_table_highlight = '#FFFF00';
     my $mail_new             = '#FFBB77';
     my $mail_new_hover       = '#DD9955';
@@ -3179,7 +3180,7 @@ table#LC_title_bar td.LC_title_bar_who {
   text-align: right;
 }
 span.LC_title_bar_title {
-  font: bold xx-large $sans;
+  font: bold x-large $sans;
 }
 table#LC_title_bar td.LC_title_bar_domain_logo {
   background: $sidebg;
@@ -3265,18 +3266,30 @@ table.LC_data_table, table.LC_mail_list
   border: 1px solid #000000;
   border-collapse: separate;
 }
+.LC_data_table_dense {
+  font-size: small;
+}
 table.LC_data_table tr th, table.LC_calendar tr th, table.LC_mail_list tr th {
   font-weight: bold;
   background-color: $data_table_head;
+  font-size: smaller;
 }
 table.LC_data_table tr td {
   background-color: $data_table_light;
+  padding: 2px;
 }
 table.LC_data_table tr.LC_even_row td {
   background-color: $data_table_dark;
 }
-table.LC_data_table tr.LC_empty td {
+table.LC_data_table tr.LC_data_table_highlight td {
+  background-color: $data_table_darker;
+}
+table.LC_data_table tr.LC_empty_row td {
   background-color: #FFFFFF;
+  font-weight: bold;
+  font-style: italic;
+  text-align: center;
+  padding: 8px;
 }
 
 table.LC_calendar {
@@ -3461,6 +3474,110 @@ table#LC_helpmenu_links a:hover {
   color: $vlink;
 }
 
+.LC_chrt_popup_exists {
+  border: 1px solid #339933;
+  margin: -1px;
+}
+.LC_chrt_popup_up {
+  border: 1px solid yellow;
+  margin: -1px;
+}
+.LC_chrt_popup {
+  border: 1px solid #8888FF;
+  background: #CCCCFF;
+}
+
+table.LC_pick_box {
+  width: 100%;
+  border-collapse: separate;
+  background: white;
+  border: 1px solid black;
+  border-spacing: 1px;
+}
+table.LC_pick_box td.LC_pick_box_title {
+  background: $tabbg;
+  font-weight: bold;
+  text-align: right;
+  width: 184px;
+  padding: 8px;
+}
+table.LC_pick_box td.LC_pick_box_separator {
+  padding: 0px;
+  height: 1px;
+  background: black;
+}
+table.LC_pick_box td.LC_pick_box_submit {
+  text-align: right;
+}
+
+table.LC_group_priv_box {
+  background: white;
+  border: 1px solid black;
+  border-spacing: 1px;
+}
+table.LC_group_priv_box td.LC_pick_box_title {
+  background: $tabbg;
+  font-weight: bold;
+  text-align: right;
+  width: 184px;
+}
+table.LC_group_priv_box td.LC_groups_fixed {
+  background: $data_table_light;
+  text-align: center;
+}
+table.LC_group_priv_box td.LC_groups_optional {
+  background: $data_table_dark;
+  text-align: center;
+}
+table.LC_group_priv_box td.LC_groups_functionality {
+  background: $data_table_darker;
+  text-align: center;
+  font-weight: bold;
+}
+table.LC_group_priv td {
+  text-align: left;
+  padding: 0px;
+}
+
+table.LC_notify_front_page {
+  background: white;
+  border: 1px solid black;
+  padding: 8px;
+}
+table.LC_notify_front_page td {
+  padding: 8px;
+}
+.LC_navbuttons {
+  margin: 2ex 0ex 2ex 0ex;
+}
+.LC_topic_bar {
+  font-family: $sans;
+  font-weight: bold;
+  width: 100%;
+  background: $tabbg;
+  vertical-align: middle;
+  margin: 2ex 0ex 2ex 0ex;
+}
+.LC_topic_bar span {
+  vertical-align: middle;
+}
+.LC_topic_bar img {
+  vertical-align: bottom;
+}
+table.LC_course_group_status {
+  margin: 20px;
+}
+table.LC_status_selector td {
+  vertical-align: top;
+  text-align: center;
+  padding: 4px;
+}
+table.LC_descriptive_input td.LC_description {
+  vertical-align: top;
+  text-align: right;
+  font-weight: bold;
+}
+
 END
 }
 
@@ -3477,8 +3594,10 @@ Inputs: $title - optional title for the
         $args - optional arguments
             force_register - if is true call registerurl so the remote is 
                              informed
-            redirect       -> array ref of seconds before redirect occurs
-                                    url to redirect to
+            redirect       -> array ref of
+                                   1- seconds before redirect occurs
+                                   2- url to redirect to
+                                   3- whether the side effect should occur
                            (side effect of setting 
                                $env{'internal.head.redirect'} to the url 
                                redirected too)
@@ -3497,15 +3616,15 @@ sub headtag {
     my $function = $args->{'function'} || &get_users_function();
     my $domain   = $args->{'domain'}   || &determinedomain();
     my $bgcolor  = $args->{'bgcolor'}  || &designparm($function.'.pgbg',$domain);
-    my $url = join(':',$env{'user.name'},$env{'user.domain'},time(),
-		   #$env{'environment.color.timestamp'},
+    my $url = join(':',$env{'user.name'},$env{'user.domain'},
+		   #time(),
+		   $env{'environment.color.timestamp'},
 		   $function,$domain,$bgcolor);
 
     $url = '/adm/css/'.&escape($url).'.css';
 
     my $result =
 	'<head>'.
-	'<link rel="stylesheet" type="text/css" href="'.$url.'" />'.
 	&font_settings().
 	&Apache::lonhtmlcommon::htmlareaheaders();
 
@@ -3514,9 +3633,11 @@ sub headtag {
     }
 
     if (ref($args->{'redirect'})) {
-	my ($time,$url) = @{$args->{'redirect'}};
+	my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
 	$url = &Apache::lonenc::check_encrypt($url);
-	$env{'internal.head.redirect'} = $url;
+	if (!$inhibit_continue) {
+	    $env{'internal.head.redirect'} = $url;
+	}
 	$result.=<<ADDMETA
 <meta http-equiv="pragma" content="no-cache" />
 <meta http-equiv="Refresh" content="$time; url=$url" />
@@ -3526,7 +3647,9 @@ ADDMETA
 	$title = 'The LearningOnline Network with CAPA';
     }
     
-    $result .= '<title> LON-CAPA '.&mt($title).'</title>'.$head_extra;
+    $result .= '<title> LON-CAPA '.&mt($title).'</title>'
+	.'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
+	.$head_extra;
     return $result;
 }
 
@@ -3825,8 +3948,10 @@ sub simple_error_page {
 {
     my $row_count;
     sub start_data_table {
+	my ($add_class) = @_;
+	my $css_class = (join(' ','LC_data_table',$add_class));
 	undef($row_count);
-	return '<table class="LC_data_table">'."\n";
+	return '<table class="'.$css_class.'">'."\n";
     }
 
     sub end_data_table {
@@ -3835,14 +3960,26 @@ sub simple_error_page {
     }
 
     sub start_data_table_row {
+	my ($add_class) = @_;
 	$row_count++;
-	return  '<tr '.(($row_count % 2)?'':'class="LC_even_row"').'>'."\n";;
+	my $css_class = ($row_count % 2)?'':'LC_even_row';
+	my $css_class = (join(' ',$css_class,$add_class));
+	return  '<tr class="'.$css_class.'">'."\n";;
     }
 
     sub end_data_table_row {
 	return '</tr>'."\n";;
     }
 
+    sub start_data_table_empty_row {
+	$row_count++;
+	return  '<tr class="LC_empty_row" >'."\n";;
+    }
+
+    sub end_data_table_empty_row {
+	return '</tr>'."\n";;
+    }
+
     sub start_data_table_header_row {
 	return  '<tr class="LC_header_row">'."\n";;
     }
@@ -3898,33 +4035,35 @@ role status: active, previous or future.
 =cut
 
 sub check_user_status {
-    my ($udom,$uname,$cdom,$crs,$role,$secgrp) = @_;
+    my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
     my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
     my @uroles = keys %userinfo;
     my $srchstr;
     my $active_chk = 'none';
+    my $now = time;
     if (@uroles > 0) {
-        if (($role eq 'cc') || ($secgrp eq '') || (!defined($secgrp))) {
+        if (($role eq 'cc') || ($sec eq '') || (!defined($sec))) {
             $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
         } else {
-            $srchstr = '/'.$cdom.'/'.$crs.'/'.$secgrp.'_'.$role;         }
-        if (grep/^$srchstr$/,@uroles) {
+            $srchstr = '/'.$cdom.'/'.$crs.'/'.$sec.'_'.$role;
+        }
+        if (grep/^\Q$srchstr\E$/,@uroles) {
             my $role_end = 0;
             my $role_start = 0;
             $active_chk = 'active';
-            if ($userinfo{$srchstr} =~ m/^($role)_(\d+)/) {
-                $role_end = $2;
-                if ($userinfo{$srchstr} =~ m/^($role)_($role_end)_(\d+)$/) {
-                    $role_start = $3;
+            if ($userinfo{$srchstr} =~ m/^\Q$role\E_(\d+)/) {
+                $role_end = $1;
+                if ($userinfo{$srchstr} =~ m/^\Q$role\E_\Q$role_end\E_(\d+)$/) {
+                    $role_start = $1;
                 }
             }
             if ($role_start > 0) {
-                if (time < $role_start) {
+                if ($now < $role_start) {
                     $active_chk = 'future';
                 }
             }
             if ($role_end > 0) {
-                if (time > $role_end) {
+                if ($now > $role_end) {
                     $active_chk = 'previous';
                 }
             }
@@ -3941,20 +4080,28 @@ sub check_user_status {
 
 Determines all the sections for a course including
 sections with students and sections containing other roles.
-Incoming parameters: domain, course number, 
-reference to array containing roles for which sections should 
-be gathered (optional). If the third argument is undefined,
-sections are gathered for any role.
+Incoming parameters: 
+
+1. domain
+2. course number 
+3. reference to array containing roles for which sections should 
+be gathered (optional).
+4. reference to array containing status types for which sections 
+should be gathered (optional).
+
+If the third argument is undefined, sections are gathered for any role. 
+If the fourth argument is undefined, sections are gathered for any status.
+Permissible values are 'active' or 'future' or 'previous'.
  
 Returns section hash (keys are section IDs, values are
 number of users in each section), subject to the
-optional roles filter.
+optional roles filter, optional status filter 
 
 =cut
 
 ###############################################
 sub get_sections {
-    my ($cdom,$cnum,$possible_roles) = @_;
+    my ($cdom,$cnum,$possible_roles,$possible_status) = @_;
     if (!defined($cdom) || !defined($cnum)) {
         my $cid =  $env{'request.course.id'};
 
@@ -3965,16 +4112,32 @@ sub get_sections {
     }
 
     my %sectioncount;
+    my $now = time;
 
     if (!defined($possible_roles) || (grep(/^st$/,@$possible_roles))) {
 	my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
 	my $sec_index = &Apache::loncoursedata::CL_SECTION();
 	my $status_index = &Apache::loncoursedata::CL_STATUS();
+        my $start_index = &Apache::loncoursedata::CL_START();
+        my $end_index = &Apache::loncoursedata::CL_END();
+        my $status;
 	while (my ($student,$data) = each(%$classlist)) {
-	    my ($section,$status) = ($data->[$sec_index],
-				     $data->[$status_index]);
-	    unless ($section eq '-1' || $section =~ /^\s*$/) {
-		$sectioncount{$section}++;
+	    my ($section,$stu_status,$start,$end) = ($data->[$sec_index],
+				                     $data->[$status_index],
+                                                     $data->[$start_index],
+                                                     $data->[$end_index]);
+            if ($stu_status eq 'Active') {
+                $status = 'active';
+            } elsif ($end < $now) {
+                $status = 'previous';
+            } elsif ($start > $now) {
+                $status = 'future';
+            } 
+	    if ($section ne '-1' && $section !~ /^\s*$/) {
+                if ((!defined($possible_status)) || (($status ne '') && 
+                    (grep/^\Q$status\E$/,@{$possible_status}))) { 
+		    $sectioncount{$section}++;
+                }
 	    }
 	}
     }
@@ -3983,14 +4146,31 @@ sub get_sections {
 	if ($user !~ /^(\w{2})/) { next; }
 	my ($role) = ($user =~ /^(\w{2})/);
 	if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
-	my $section;
+	my ($section,$status);
 	if ($role eq 'cr' &&
 	    $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
 	    $section=$1;
 	}
 	if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
 	if (!defined($section) || $section eq '-1') { next; }
-	$sectioncount{$section}++;
+        my ($end,$start) = ($courseroles{$user} =~ /^([^:]*):([^:]*)$/);
+        if ($end == -1 && $start == -1) {
+            next; #deleted role
+        }
+        if (!defined($possible_status)) { 
+            $sectioncount{$section}++;
+        } else {
+            if ((!$end || $end >= $now) && (!$start || $start <= $now)) {
+                $status = 'active';
+            } elsif ($end < $now) {
+                $status = 'future';
+            } elsif ($start > $now) {
+                $status = 'previous';
+            }
+            if (($status ne '') && (grep/^\Q$status\E$/,@{$possible_status})) {
+                $sectioncount{$section}++;
+            }
+        }
     }
     return %sectioncount;
 }
@@ -4029,6 +4209,7 @@ of the possibility of multiple values fo
 sub get_course_users {
     my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata) = @_;
     my %idx = ();
+    my %seclists;
 
     $idx{udom} = &Apache::loncoursedata::CL_SDOM();
     $idx{uname} =  &Apache::loncoursedata::CL_SNAME();
@@ -4044,12 +4225,28 @@ sub get_course_users {
         my $now = time;
         foreach my $student (keys(%{$classlist})) {
             my $match = 0;
+            my $secmatch = 0;
+            my $section = $$classlist{$student}[$idx{section}];
+            if ($section eq '') {
+                $section = 'none';
+            }
             if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
-		unless(grep(/^\Q$$classlist{$student}[$idx{section}]\E$/,
-			    @{$sections})) {
-		    next;
+                if (grep(/^all$/,@{$sections})) {
+                    $secmatch = 1;
+                } elsif ($$classlist{$student}[$idx{section}] eq '') {
+                    if (grep(/^none$/,@{$sections})) {
+                        $secmatch = 1;
+                    }
+                } else {  
+		    if (grep(/^\Q$section\E$/,@{$sections})) {
+		        $secmatch = 1;
+                    }
 		}
-            } 
+                if (!$secmatch) {
+                    next;
+                }
+            }
+            push(@{$seclists{$student}},$section); 
             if (defined($$types{'active'})) {
                 if ($$classlist{$student}[$idx{status}] eq 'Active') {
                     push(@{$$users{st}{$student}},'active');
@@ -4068,36 +4265,57 @@ sub get_course_users {
                     $match = 1;
                 }
             }
-            if ($match && defined($userdata)) {
+            if ($match && ref($userdata) eq 'HASH') {
                 $$userdata{$student} = $$classlist{$student};
             }
         }
     }
-    if ((@{$roles} > 0) && (@{$roles} ne "st")) {
+    if ((@{$roles} > 1) || ((@{$roles} == 1) && ($$roles[0] ne "st"))) {
         my @coursepersonnel = &Apache::lonnet::getkeys('nohist_userroles',$cdom,$cnum);
         foreach my $person (@coursepersonnel) {
             my $match = 0;
-            my ($role,$user) = ($person =~ /^([^:]*):([^:]+:[^:]+)/);
+            my $secmatch = 0;
+            my ($role,$user,$usec) = ($person =~ /^([^:]*):([^:]+:[^:]+):([^:]*)/);
             $user =~ s/:$//;
             if (($role) && (grep(/^\Q$role\E$/,@{$roles}))) {
-                my ($uname,$udom,$usec) = split(/:/,$user);
-                if ($usec ne '' && (ref($sections) eq 'ARRAY') && 
-		    @{$sections} > 0) {
-		    unless(grep(/^\Q$usec\E$/,@{$sections})) {
-			next;
-		    }
+                my ($uname,$udom) = split(/:/,$user);
+                if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
+                    if (grep(/^all$/,@{$sections})) {
+                        $secmatch = 1;
+                    } elsif ($usec eq '') {
+                        if (grep(/^none$/,@{$sections})) {
+                            $secmatch = 1;
+                        }
+                    } else {
+                        if (grep(/^\Q$usec\E$/,@{$sections})) {
+                            $secmatch = 1;
+                        }
+                    }
+                    if (!$secmatch) {
+                        next;
+                    }
+                }
+                if ($usec eq '') {
+                    $usec = 'none';
                 }
                 if ($uname ne '' && $udom ne '') {
-                    my $status = &check_user_status($udom,$uname,$cdom,$cnum,$role);
+                    my $status = &check_user_status($udom,$uname,$cdom,$cnum,$role,
+                                                    $usec);
                     foreach my $type (keys(%{$types})) { 
                         if ($status eq $type) {
-                            @{$$users{$role}{$user}} = $type;
+                            if (!grep(/^\Q$type\E$/,@{$$users{$role}{$user}})) {
+                                push(@{$$users{$role}{$user}},$type);
+                            }
                             $match = 1;
                         }
                     }
-                    if ($match && defined($userdata) &&
-                        !exists($$userdata{$uname.':'.$udom})) {
-			&get_user_info($udom,$uname,\%idx,$userdata);
+                    if (($match) && (ref($userdata) eq 'HASH')) {
+                        if (!exists($$userdata{$uname.':'.$udom})) {
+			    &get_user_info($udom,$uname,\%idx,$userdata);
+                        }
+                        if (!grep(/^\Q$usec\E$/,@{$seclists{$uname.':'.$udom}})) {
+                            push(@{$seclists{$uname.':'.$udom}},$usec);
+                        }
                     }
                 }
             }
@@ -4111,10 +4329,17 @@ sub get_course_users {
                     if (defined($userdata) && 
 			!exists($$userdata{$owner.':'.$cdom})) {
 			&get_user_info($cdom,$owner,\%idx,$userdata);
+                        if (!grep(/^none$/,@{$seclists{$owner.':'.$cdom}})) {
+                            push(@{$seclists{$owner.':'.$cdom}},'none');
+                        }
 		    }
                 }
             }
         }
+        foreach my $user (keys(%seclists)) {
+            @{$seclists{$user}} = (sort {$a <=> $b} @{$seclists{$user}});
+            $$userdata{$user}[$idx{section}] = join(',',@{$seclists{$user}});
+        }
     }
     return;
 }