--- loncom/interface/loncommon.pm	2006/11/01 22:22:31	1.467
+++ loncom/interface/loncommon.pm	2006/11/29 19:33:29	1.476
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.467 2006/11/01 22:22:31 www Exp $
+# $Id: loncommon.pm,v 1.476 2006/11/29 19:33:29 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -386,20 +386,27 @@ sub selectstudent_link {
 }
 
 sub coursebrowser_javascript {
-    my ($domainfilter)=@_;
+    my ($domainfilter,$sec_element,$formname)=@_;
     my $crs_or_grp_alert = &mt('Please select the type of LON-CAPA entity - Course or Group - for which you wish to add/modify a user role');
-   return (<<ENDSTDBRW);
+   my $output = '
 <script type="text/javascript" language="Javascript" >
-    var stdeditbrowser;
+    var stdeditbrowser;'."\n";
+   $output .= <<"ENDSTDBRW";
     function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag,crstype) {
         var url = '/adm/pickcourse?';
-        var filter;
-        if (filter != null) {
-           if (filter != '') {
-               url += 'filter='+filter+'&';
-	   }
+        var domainfilter = '';
+        var formid = getFormIdByName(formname);
+        if (formid > -1) {
+            var domid = getIndexByName(formid,udom);
+            if (domid > -1) {
+                if (document.forms[formid].elements[domid].type == 'select-one') {
+                    domainfilter=document.forms[formid].elements[domid].options[document.forms[formid].elements[domid].selectedIndex].value;
+                }
+                if (document.forms[formid].elements[domid].type == 'hidden') {
+                    domainfilter=document.forms[formid].elements[domid].value;
+                }
+            }
         }
-        var domainfilter='$domainfilter';
         if (domainfilter != null) {
            if (domainfilter != '') {
                url += 'domainfilter='+domainfilter+'&';
@@ -408,11 +415,18 @@ sub coursebrowser_javascript {
         url += 'form=' + formname + '&cnumelement='+uname+
 	                            '&cdomelement='+udom+
                                     '&cnameelement='+desc;
-        if (extra_element !=null && extra_element != '' && formname == 'rolechoice') {
-            url += '&roleelement='+extra_element;
-            if (domainfilter == null || domainfilter == '') {
-                url += '&domainfilter='+extra_element;
+        if (extra_element !=null && extra_element != '') {
+            if (formname == 'rolechoice') {
+                url += '&roleelement='+extra_element;
+                if (domainfilter == null || domainfilter == '') {
+                    url += '&domainfilter='+extra_element;
+                }
             }
+            else {
+                if (formname == 'portform') {
+                    url += '&setroles='+extra_element;
+                }
+            }     
         }
         if (multflag !=null && multflag != '') {
             url += '&multiple='+multflag;
@@ -435,9 +449,69 @@ sub coursebrowser_javascript {
         stdeditbrowser = open(url,title,options,'1');
         stdeditbrowser.focus();
     }
-</script>
+
+    function getFormIdByName(formname) {
+        for (var i=0;i<document.forms.length;i++) {
+            if (document.forms[i].name == formname) {
+                return i;
+            }
+        }
+        return -1; 
+    }
+
+    function getIndexByName(formid,item) {
+        for (var i=0;i<document.forms[formid].elements.length;i++) {
+            if (document.forms[formid].elements[i].name == item) {
+                return i;
+            }
+        }
+        return -1;
+    }
 ENDSTDBRW
+    if ($sec_element ne '') {
+        $output .= &setsec_javascript($sec_element,$formname);
+    }
+    $output .= '
+</script>';
+    return $output;
+}
+
+sub setsec_javascript {
+    my ($sec_element,$formname) = @_;
+    my $setsections = qq|
+function setSect(sectionlist) {
+    var sectionsArray = sectionlist.split(",");
+    var numSections = sectionsArray.length;
+    document.$formname.$sec_element.length = 0;
+    if (numSections == 0) {
+        document.$formname.$sec_element.multiple=false;
+        document.$formname.$sec_element.size=1;
+        document.$formname.$sec_element.options[0] = new Option('No existing sections','',false,false)
+    } else {
+        if (numSections == 1) {
+            document.$formname.$sec_element.multiple=false;
+            document.$formname.$sec_element.size=1;
+            document.$formname.$sec_element.options[0] = new Option('Select','',true,true);
+            document.$formname.$sec_element.options[1] = new Option('No section','',false,false)
+            document.$formname.$sec_element.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
+        } else {
+            for (var i=0; i<numSections; i++) {
+                document.$formname.$sec_element.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
+            }
+            document.$formname.$sec_element.multiple=true
+            if (numSections < 3) {
+                document.$formname.$sec_element.size=numSections;
+            } else {
+                document.$formname.$sec_element.size=3;
+            }
+            document.$formname.$sec_element.options[0].selected = false
+        }
+    }
 }
+|;
+    return $setsections;
+}
+
 
 sub selectcourse_link {
    my ($form,$unameele,$udomele,$desc,$extra_element,$multflag,$selecttype)=@_;
@@ -1303,6 +1377,23 @@ sub select_form {
     return $selectform;
 }
 
+# For display filters
+
+sub display_filter {
+    if (!$env{'form.show'}) { $env{'form.show'}=10; }
+    return '<nobr><label>'.&mt('Records [_1]',
+			       &Apache::lonmeta::selectbox('show',$env{'form.show'},undef,
+							   (&mt('all'),10,20,50,100,1000,10000))).
+	   '</label></nobr> <nobr><label>'.
+           &mt('Filter [_1]',
+	   &select_form(($env{'form.displayfilter'}?$env{'form.displayfilter'}:'currentfolder'),
+					'displayfilter',
+					('currentfolder' => 'Current folder',
+					 'containing' => 'Containing phrase',
+					 'none' => 'None'))).
+	   '<input type="text" name="containingphrase" size="30" /></label></nobr>';
+}
+
 sub gradeleveldescription {
     my $gradelevel=shift;
     my %gradelevels=(0 => 'Not specified',
@@ -2718,8 +2809,9 @@ sub findallcourses {
     my %courses;
     my $now=time;
     foreach my $key (keys(%env)) {
-	if ( $key=~m{^user\.role\.(\w+)\./(\w+)/(\w+)} ) {
-	    my ($role,$domain,$id) = ($1,$2,$3);
+	if ( $key=~m{^user\.role\.(\w+)\./(\w+)/(\w+)/?(\w*)$} ||
+             $key=~m{^user\.role\.(cr/\w+/\w+/\w+)\./(\w+)/(\w+)}) {
+	    my ($role,$domain,$id,$sec) = ($1,$2,$3,$4);
 	    next if ($role eq 'ca' || $role eq 'aa');
 	    next if (%roles && !exists($roles{$role}));
 	    my ($starttime,$endtime)=split(/\./,$env{$key});
@@ -2730,13 +2822,129 @@ sub findallcourses {
             if ($endtime) {
                 if ($now>$endtime) { $active=0; }
             }
-            if ($active) { $courses{$domain.'_'.$id}=1; }
+            if ($active) {
+                if ($sec eq '') {
+                    $sec = 'none';
+                }
+                $courses{$domain.'_'.$id}{$sec} = 1;
+            }
         }
     }
-    return keys(%courses);
+    return %courses;
 }
 
 ###############################################
+
+sub blockcheck {
+    my ($setters,$activity) = @_;
+    # Retrieve active student roles and active course coordinator/instructor roles
+
+    my %live_courses = &findallcourses();
+
+    # Retrieve blocking times and identity of blocker for active courses
+    # unless user has 'evb' privilege.
+
+    my $startblock = 0;
+    my $endblock = 0;
+
+    foreach my $course (keys(%live_courses)) {
+        my $cdom = $env{'course.'.$course.'.domain'};
+        my $cnum = $env{'course.'.$course.'.num'};
+        my $noblock = 0;
+        foreach my $sec (keys(%{$live_courses{$course}})) {
+            my $role = 'cm./'.$cdom.'/'.$cnum;
+            if ($sec ne 'none') {
+                $role .= '/'.$sec;
+            }
+            if (&Apache::lonnet::allowed('evb',undef,undef,$role)) {
+                $noblock = 1;
+                last;
+            }
+        }
+        # if they have the evb priv and are currently not playing student
+        next if (($noblock) &&
+                 ($env{'request.role'} !~ m{^st\./$cdom/$cnum}));
+
+        $setters->{$course} = {};
+        $setters->{$course}{'staff'} = [];
+        $setters->{$course}{'times'} = [];
+        my %records = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
+        foreach my $record (keys(%records)) {
+            my ($start,$end) = ($record =~ m/^(\d+)____(\d+)$/);
+            if ($start <= time && $end >= time) {
+                my ($staff_name,$staff_dom,$title,$blocks) =
+                    &parse_block_record($records{$record});
+                if ($blocks->{$activity} eq 'on') {
+                    push(@{$$setters{$course}{'staff'}}, [$staff_name,$staff_dom]);                    push(@{$$setters{$course}{'times'}}, [$start,$end]);
+                    if ( ($startblock == 0) || ($startblock > $1) ) {
+                        $startblock = $1;
+                    }
+                    if ( ($endblock == 0) || ($endblock < $2) ) {
+                        $endblock = $2;
+                    }
+                }
+            }
+        }
+    }
+    return ($startblock,$endblock);
+}
+
+sub parse_block_record {
+    my ($record) = @_;
+    my ($setuname,$setudom,$title,$blocks);
+    if (ref($record) eq 'HASH') {
+        ($setuname,$setudom) = split(/:/,$record->{'setter'});
+        $title = &unescape($record->{'event'});
+        $blocks = $record->{'blocks'};
+    } else {
+        my @data = split(/:/,$record,3);
+        if (scalar(@data) eq 2) {
+            $title = $data[1];
+            ($setuname,$setudom) = split(/@/,$data[0]);
+        } else {
+            ($setuname,$setudom,$title) = @data;
+        }
+        $blocks = { 'com' => 'on' };
+    }
+    return ($setuname,$setudom,$title,$blocks);
+}
+
+sub build_block_table {
+    my ($startblock,$endblock,$setters) = @_;
+    my %lt = &Apache::lonlocal::texthash(
+        'cacb' => 'Currently active communication blocks',
+        'cour' => 'Course',
+        'dura' => 'Duration',
+        'blse' => 'Block set by'
+    );
+    my $output;
+    $output = '<br />'.$lt{'cacb'}.':<br />';
+    $output .= &start_data_table();
+    $output .= '
+<tr>
+ <th>'.$lt{'cour'}.'</th>
+ <th>'.$lt{'dura'}.'</th>
+ <th>'.$lt{'blse'}.'</th>
+</tr>
+';
+    foreach my $course (keys(%{$setters})) {
+        my %courseinfo=&Apache::lonnet::coursedescription($course);
+        for (my $i=0; $i<@{$$setters{$course}{staff}}; $i++) {
+            my ($uname,$udom) = @{$$setters{$course}{staff}[$i]};
+            my $fullname = &aboutmewrapper(&plainname($uname,$udom),$uname,$udom);
+            my ($openblock,$closeblock) = @{$$setters{$course}{times}[$i]};
+            $openblock = &Apache::lonlocal::locallocaltime($openblock);
+            $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
+            $output .= &Apache::loncommon::start_data_table_row().
+                       '<td>'.$courseinfo{'description'}.'</td>'.
+                       '<td>'.$openblock.' to '.$closeblock.'</td>'.
+                       '<td>'.$fullname.'.</td>'.
+                        &Apache::loncommon::end_data_table_row();
+        }
+    }
+    $output .= &end_data_table();
+}
+
 ###############################################
 
 =pod
@@ -3194,8 +3402,8 @@ sub standard_css {
     my $mono                 = 'monospace';
     my $data_table_head      = $tabbg;
     my $data_table_light     = '#EEEEEE';
-    my $data_table_dark      = '#DDD';
-    my $data_table_darker    = '#CCC';
+    my $data_table_dark      = '#DDDDDD';
+    my $data_table_darker    = '#CCCCCC';
     my $data_table_highlight = '#FFFF00';
     my $mail_new             = '#FFBB77';
     my $mail_new_hover       = '#DD9955';
@@ -3280,6 +3488,9 @@ table#LC_title_bar td.LC_title_bar_who {
   font: small $sans;
   text-align: right;
 }
+span.LC_metadata {
+    font-family: $sans;
+}
 span.LC_title_bar_title {
   font: bold x-large $sans;
 }
@@ -3437,6 +3648,19 @@ table.LC_whatsnew tr.LC_odd_row td {
   background-color: #EEE;
 }
 
+table.LC_createuser {
+}
+
+table.LC_createuser tr.LC_section_row td {
+  font-size: smaller;
+}
+
+table.LC_createuser tr.LC_info_row td  {
+  background-color: #CCC;
+  font-weight: bold;
+  text-align: center;
+}
+
 table.LC_calendar {
   border: 1px solid #000000;
   border-collapse: collapse;
@@ -4126,6 +4350,13 @@ sub simple_error_page {
 	$css_class = (join(' ',$css_class,$add_class));
 	return  '<tr class="'.$css_class.'">'."\n";;
     }
+    
+    sub continue_data_table_row {
+	my ($add_class) = @_;
+	my $css_class = ($row_count % 2)?'':'LC_even_row';
+	$css_class = (join(' ',$css_class,$add_class));
+	return  '<tr class="'.$css_class.'">'."\n";;
+    }
 
     sub end_data_table_row {
 	return '</tr>'."\n";;
@@ -4528,6 +4759,96 @@ sub get_user_info {
     return;
 }
 
+###############################################
+
+=pod
+
+=item * &get_user_quota()
+
+Retrieves quota assigned for storage of portfolio files for a user  
+
+Incoming parameters:
+1. user's username
+2. user's domain
+
+Returns:
+1. Disk quota (in Mb) assigned to student. 
+
+If a value has been stored in the user's environment, 
+it will return that, otherwise it returns the default
+for users in the domain.
+
+=cut
+
+###############################################
+
+
+sub get_user_quota {
+    my ($uname,$udom) = @_;
+    my $quota;
+    if (!defined($udom)) {
+        $udom = $env{'user.domain'};
+    }
+    if (!defined($uname)) {
+        $uname = $env{'user.name'};
+    }
+    if (($udom eq '' || $uname eq '') ||
+        ($udom eq 'public') && ($uname eq 'public')) {
+        $quota = 0;
+    } else {
+        if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
+            $quota = $env{'environment.portfolioquota'};
+        } else {
+            my %userenv = &Apache::lonnet::dump('environment',$udom,$uname);
+            my ($tmp) = keys(%userenv);
+            if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
+                $quota = $userenv{'portfolioquota'};
+            } else {
+                undef(%userenv);
+            }
+        }
+        if ($quota eq '') {
+            $quota = &default_quota($udom);
+        }
+    }
+    return $quota;
+}
+
+###############################################
+
+=pod
+
+=item * &default_quota()
+
+Retrieves default quota assigned for storage of user portfolio files
+
+Incoming parameters:
+1. domain
+
+Returns:
+1. Default disk quota (in Mb) for user portfolios in the domain.
+
+If a value has been stored in the domain's configuration db,
+it will return that, otherwise it returns 20 (for backwards 
+compatibility with domains which have not set up a configuration
+db file; the original statically defined portfolio quota was 20 Mb). 
+
+=cut
+
+###############################################
+
+
+sub default_quota {
+    my ($udom) = @_;
+    my %defaults = &Apache::lonnet::get_dom('configuration',
+                                            ['portfolioquota'],$udom);
+    if ($defaults{'portfolioquota'} ne '') {
+        return $defaults{'portfolioquota'};
+    } else {
+        return '20';
+    }
+}
+
 sub get_secgrprole_info {
     my ($cdom,$cnum,$needroles,$type)  = @_;
     my %sections_count = &get_sections($cdom,$cnum);