--- loncom/interface/loncommon.pm	2004/02/20 17:03:38	1.182
+++ loncom/interface/loncommon.pm	2004/09/24 22:07:34	1.214
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.182 2004/02/20 17:03:38 matthew Exp $
+# $Id: loncommon.pm,v 1.214 2004/09/24 22:07:34 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -74,6 +74,7 @@ my $readit;
 my %language;
 my %supported_language;
 my %cprtag;
+my %scprtag;
 my %fe; my %fd;
 my %category_extensions;
 
@@ -131,6 +132,20 @@ BEGIN {
             close($fh);
         }
     }
+# ------------------------------------------------------------------ source copyrights
+    {
+        my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
+                                  '/source_copyright.tab';
+        if ( open (my $fh,"<$sourcecopyrightfile") ) {
+            while (<$fh>) {
+                next if /^\#/;
+                chomp;
+                my ($key,$val)=(split(/\s+/,$_,2));
+                $scprtag{$key}=$val;
+            }
+            close($fh);
+        }
+    }
 
 # -------------------------------------------------------------- domain designs
 
@@ -220,10 +235,10 @@ formname and elementname indicate the na
 the element that the results of the browsing selection are to be placed in. 
 
 Specifying 'only' will restrict the browser to displaying only files
-with the given extension.  Can be a comma seperated list.
+with the given extension.  Can be a comma separated list.
 
 Specifying 'omit' will restrict the browser to NOT displaying files
-with the given extension.  Can be a comma seperated list.
+with the given extension.  Can be a comma separated list.
 
 =item * opensearcher(formname, elementname) [javascript]
 
@@ -235,6 +250,8 @@ of the element the selection from the se
 =cut
 
 sub browser_and_searcher_javascript {
+    my ($mode)=@_;
+    if (!defined($mode)) { $mode='edit'; }
     my $resurl=&lastresurl();
     return <<END;
     var editbrowser = null;
@@ -244,7 +261,7 @@ sub browser_and_searcher_javascript {
             url += 'launch=1&';
         }
         url += 'catalogmode=interactive&';
-        url += 'mode=edit&';
+        url += 'mode=$mode&';
         url += 'form=' + formname + '&';
         if (only != null) {
             url += 'only=' + only + '&';
@@ -269,7 +286,7 @@ sub browser_and_searcher_javascript {
             url += 'launch=1&';
         }
         url += 'catalogmode=interactive&';
-        url += 'mode=edit&';
+        url += 'mode=$mode&';
         url += 'form=' + formname + '&';
         if (titleelement != null) {
             url += 'titleelement=' + titleelement + '&';
@@ -353,7 +370,7 @@ sub coursebrowser_javascript {
    return (<<ENDSTDBRW);
 <script type="text/javascript" language="Javascript" >
     var stdeditbrowser;
-    function opencrsbrowser(formname,uname,udom) {
+    function opencrsbrowser(formname,uname,udom,desc) {
         var url = '/adm/pickcourse?';
         var filter;
         if (filter != null) {
@@ -368,7 +385,8 @@ sub coursebrowser_javascript {
 	   }
         }
         url += 'form=' + formname + '&cnumelement='+uname+
-                                    '&cdomelement='+udom;
+	                            '&cdomelement='+udom+
+                                    '&cnameelement='+desc;
         var title = 'Course_Browser';
         var options = 'scrollbars=1,resizable=1,menubar=0';
         options += ',width=700,height=600';
@@ -380,9 +398,9 @@ ENDSTDBRW
 }
 
 sub selectcourse_link {
-   my ($form,$unameele,$udomele)=@_;
+   my ($form,$unameele,$udomele,$desc)=@_;
     return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
-        '","'.$udomele.'");'."'>".&mt('Select Course')."</a>";
+        '","'.$udomele.'","'.$desc.'");'."'>".&mt('Select Course')."</a>";
 }
 
 =pod
@@ -621,6 +639,74 @@ sub helpLatexCheatsheet {
 	.'</td></tr></table>';
 }
 
+sub help_open_menu {
+    my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
+    $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 = 620 if (not defined $width);
+    $height = 600 if (not defined $height);
+    my $link='';
+    my $title = &mt('Get help');
+    my $origurl = $ENV{'REQUEST_URI'};
+    my $timestamp = time;
+    foreach (\$color,\$function,\$topic,\$component_help,\$faq,\$bug,\$origurl) {
+        $$_ = &Apache::lonnet::escape($$_);
+    }
+
+    if (!$stayOnPage) {
+         $link = "javascript:helpMenu('open')";
+    } else {
+        $link = "javascript:helpMenu('display')";
+    }
+    my $banner_link = "/adm/helpmenu?page=banner&color=$color&function=$function&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
+    my $details_link = "/adm/helpmenu?page=body&color=$color&function=$function&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp";
+    my $template;
+    if ($text ne "") {
+	$template .= 
+  "<table bgcolor='#773311' cellspacing='1' cellpadding='1' border='0'><tr>".
+  "<td bgcolor='#886622'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
+    }
+    $template .= <<"ENDTEMPLATE";
+ <script>
+function helpMenu(caller) {
+    if (caller == 'open') {
+        newWindow =  window.open("","helpmenu","HEIGHT=$height,WIDTH=$width,resize=yes,scrollbars=yes" )
+        caller = newWindow.document
+    } else {
+        caller = this.document
+    }
+    caller.write("<html><head><title>LON-CAPA Help Menu</title><meta http-equiv='pragma' content='no-cache'></head>")
+    caller.write("<frameset rows='105,*' border='0'><frame name='bannerframe'  src='$banner_link'><frame name='bodyframe' src='$details_link'></frameset>")
+    caller.write("</html>")
+    caller.close()
+    if (caller == newWindow.document) {
+        caller.focus()
+    }
+}
+ </script>
+ <a href="$link" title="$title"><image src="/adm/lonIcons/helpgateway.gif" border="0" alt="(Help Menu)" /></a>
+ENDTEMPLATE
+    if ($component_help) {
+	if (!$text) {
+	    $template=&help_open_topic($component_help,undef,$stayOnPage,
+				       $width,$height).' '.$template;
+	} else {
+	    my $help_text;
+	    $help_text=&Apache::lonnet::unescape($topic);
+	    $template='<table><tr><td>'.
+		&help_open_topic($component_help,$help_text,$stayOnPage,
+				 $width,$height).'</td><td>'.$template.
+				 '</td></tr></table>';
+	}
+    }
+    if ($text ne '') { $template.='</td></tr></table>' };
+    return $template;
+}
+
 sub help_open_bug {
     my ($topic, $text, $stayOnPage, $width, $height) = @_;
     unless ($ENV{'user.adv'}) { return ''; }
@@ -631,8 +717,8 @@ sub help_open_bug {
 	$ENV{'environment.remote'} eq 'off' ) {
 	$stayOnPage=1;
     }
-    $width = 350 if (not defined $width);
-    $height = 400 if (not defined $height);
+    $width = 600 if (not defined $width);
+    $height = 600 if (not defined $height);
 
     $topic=~s/\W+/\+/g;
     my $link='';
@@ -716,7 +802,7 @@ ENDTEMPLATE
 
 =item * csv_translate($text) 
 
-Translate $text to allow it to be output as a 'comma seperated values' 
+Translate $text to allow it to be output as a 'comma separated values' 
 format.
 
 =cut
@@ -726,7 +812,7 @@ format.
 sub csv_translate {
     my $text = shift;
     $text =~ s/\"/\"\"/g;
-    $text =~ s/\n//g;
+    $text =~ s/\n/ /g;
     return $text;
 }
 
@@ -777,7 +863,7 @@ sub define_excel_formats {
     $format->{'h2'}   = $workbook->add_format(bold=>1, size=>16);
     $format->{'h3'}   = $workbook->add_format(bold=>1, size=>14);
     $format->{'date'} = $workbook->add_format(num_format=>
-                                            'mmm d yyyy hh:mm AM/PM');
+                                            'mm/dd/yyyy hh:mm:ss');
     return $format;
 }
 
@@ -906,21 +992,27 @@ sub domain_select {
     } &get_domains;
     if ($multiple) {
 	$domains{''}=&mt('Any domain');
-	return &multiple_select_form($name,$value,%domains);
+	return &multiple_select_form($name,$value,4,%domains);
     } else {
 	return &select_form($name,$value,%domains);
     }
 }
 
 sub multiple_select_form {
-    my ($name,$value,%hash)=@_;
+    my ($name,$value,$size,%hash)=@_;
     my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
     my $output='';
-    my $size =(scalar keys %hash<4?scalar keys %hash:4);
+    if (! defined($size)) {
+        $size = 4;
+        if (scalar(keys(%hash))<4) {
+            $size = scalar(keys(%hash));
+        }
+    }
     $output.="\n<select name='$name' size='$size' multiple='1'>";
-    foreach (sort keys %hash) {
-        $output.="<option name='$_'".
-            ($selected{$_}?' selected="1"' :'').">$hash{$_}</option>\n";
+    foreach (sort(keys(%hash))) {
+        $output.='<option value="'.$_.'" ';
+        $output.='selected ' if ($selected{$_});
+        $output.='>'.$hash{$_}."</option>\n";
     }
     $output.="</select>\n";
     return $output;
@@ -1650,6 +1742,7 @@ sub plainname {
 	$names{'lastname'}.' '.$names{'generation'};
     $name=~s/\s+$//;
     $name=~s/\s+/ /g;
+    if ($name !~ /\S/) { $name=$uname.'@'.$udom; }
     return $name;
 }
 
@@ -1672,8 +1765,19 @@ if the user does not
 
 sub nickname {
     my ($uname,$udom)=@_;
-    my %names=&Apache::lonnet::get('environment',
-  ['nickname','firstname','middlename','lastname','generation'],$udom,$uname);
+    my %names;
+    if ($uname eq $ENV{'user.name'} &&
+	$udom eq $ENV{'user.domain'}) {
+	%names=('nickname'   => $ENV{'environment.nickname'}  ,
+		'firstname'  => $ENV{'environment.firstname'} ,
+		'middlename' => $ENV{'environment.middlename'},
+		'lastname'   => $ENV{'environment.lastname'}  ,
+		'generation' => $ENV{'environment.generation'});
+    } else {
+	%names=&Apache::lonnet::get('environment',
+				    ['nickname','firstname','middlename',
+				     'lastname','generation'],$udom,$uname);
+    }
     my $name=$names{'nickname'};
     if ($name) {
        $name='&quot;'.$name.'&quot;'; 
@@ -1699,17 +1803,21 @@ Gets a users screenname and returns it a
 
 sub screenname {
     my ($uname,$udom)=@_;
-    my %names=
- &Apache::lonnet::get('environment',['screenname'],$udom,$uname);
+    if ($uname eq $ENV{'user.name'} &&
+	$udom eq $ENV{'user.domain'}) {return $ENV{'environment.screenname'};}
+    my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
     return $names{'screenname'};
 }
 
+
 # ------------------------------------------------------------- Message Wrapper
 
 sub messagewrapper {
-    my ($link,$un,$do)=@_;
+    my ($link,$username,$domain)=@_;
     return 
-"<a href='/adm/email?compose=individual&recname=$un&recdom=$do'>$link</a>";
+        '<a href="/adm/email?compose=individual&'.
+        'recname='.$username.'&recdom='.$domain.'" '.
+        'title="'.&mt('Send message').'">'.$link.'</a>';
 }
 # --------------------------------------------------------------- Notes Wrapper
 
@@ -1722,8 +1830,8 @@ sub noteswrapper {
 
 sub aboutmewrapper {
     my ($link,$username,$domain,$target)=@_;
-    return "<a href='/adm/$domain/$username/aboutme'".
-	($target?" target='$target'":'').">$link</a>";
+    return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
+	($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
 }
 
 # ------------------------------------------------------------ Syllabus Wrapper
@@ -1734,9 +1842,28 @@ sub syllabuswrapper {
     if ($fontcolor) { 
         $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>'; 
     }
-    return "<a href='/public/$domain/$coursedir/syllabus'>$linktext</a>";
+    return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
 }
 
+sub track_student_link {
+    my ($linktext,$sname,$sdom,$target) = @_;
+    my $link ="/adm/trackstudent";
+    my $title = 'View recent activity';
+    if (defined($sname) && $sname !~ /^\s*$/ &&
+        defined($sdom)  && $sdom  !~ /^\s*$/) {
+        $link .= "?selected_student=$sname:$sdom";
+        $title .= ' of this student';
+    }
+    if (defined($target) && $target !~ /^\s*$/) {
+        $target = qq{target="$target"};
+    } else {
+        $target = '';
+    }
+    return qq{<a href="$link" title="$title" $target>$linktext</a>};
+}
+
+
+
 =pod
 
 =back
@@ -1806,6 +1933,30 @@ sub copyrightdescription {
 
 =pod
 
+=item * source_copyrightids() 
+
+returns list of all source copyrights
+
+=cut
+
+sub source_copyrightids {
+    return sort(keys(%scprtag));
+}
+
+=pod
+
+=item * source_copyrightdescription() 
+
+returns description of a specified source copyright id
+
+=cut
+
+sub source_copyrightdescription {
+    return &mt($scprtag{shift(@_)});
+}
+
+=pod
+
 =item * filecategories() 
 
 returns list of all file categories
@@ -1844,7 +1995,7 @@ sub fileembstyle {
 
 sub filecategoryselect {
     my ($name,$value)=@_;
-    return &select_form($name,$value,
+    return &select_form($value,$name,
 			'' => &mt('Any category'),
 			map { $_,$_ } sort(keys(%category_extensions)));
 }
@@ -1858,7 +2009,9 @@ returns description for a specified file
 =cut
 
 sub filedescription {
-    return &mt($fd{lc(shift(@_))});
+    my $file_description = $fd{lc(shift())};
+    $file_description =~ s:([\[\]]):~$1:g;
+    return &mt($file_description);
 }
 
 =pod
@@ -1872,7 +2025,9 @@ extra formatting
 
 sub filedescriptionex {
     my $ex=shift;
-    return '.'.$ex.' '.&mt($fd{lc($ex)});
+    my $file_description = $fd{lc($ex)};
+    $file_description =~ s:([\[\]]):~$1:g;
+    return '.'.$ex.' '.&mt($file_description);
 }
 
 # End of .tab access
@@ -2093,22 +2248,19 @@ show a snapshot of what student was look
 =cut
 
 sub get_student_view {
-  my ($symb,$username,$domain,$courseid,$target) = @_;
+  my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
   my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
-  my (%old,%moreenv);
+  my (%form);
   my @elements=('symb','courseid','domain','username');
   foreach my $element (@elements) {
-    $old{$element}=$ENV{'form.grade_'.$element};
-    $moreenv{'form.grade_'.$element}=eval '$'.$element #'
+      $form{'grade_'.$element}=eval '$'.$element #'
   }
-  if ($target eq 'tex') {$moreenv{'form.grade_target'} = 'tex';}
-  &Apache::lonnet::appenv(%moreenv);
-  $feedurl=&Apache::lonnet::clutter($feedurl);
-  my $userview=&Apache::lonnet::ssi_body($feedurl);
-  &Apache::lonnet::delenv('form.grade_');
-  foreach my $element (@elements) {
-    $ENV{'form.grade_'.$element}=$old{$element};
+  if (defined($moreenv)) {
+      %form=(%form,%{$moreenv});
   }
+  if ($target eq 'tex') {$form{'grade_target'} = 'tex';}
+  $feedurl=&Apache::lonnet::clutter($feedurl);
+  my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
   $userview=~s/\<body[^\>]*\>//gi;
   $userview=~s/\<\/body\>//gi;
   $userview=~s/\<html\>//gi;
@@ -2131,19 +2283,14 @@ show a snapshot of how student was answe
 sub get_student_answers {
   my ($symb,$username,$domain,$courseid,%form) = @_;
   my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
-  my (%old,%moreenv);
+  my (%moreenv);
   my @elements=('symb','courseid','domain','username');
   foreach my $element (@elements) {
-    $old{$element}=$ENV{'form.grade_'.$element};
-    $moreenv{'form.grade_'.$element}=eval '$'.$element #'
-  }
-  $moreenv{'form.grade_target'}='answer';
-  &Apache::lonnet::appenv(%moreenv);
-  my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%form);
-  &Apache::lonnet::delenv('form.grade_');
-  foreach my $element (@elements) {
-    $ENV{'form.grade_'.$element}=$old{$element};
+    $moreenv{'grade_'.$element}=eval '$'.$element #'
   }
+  $moreenv{'grade_target'}='answer';
+  %moreenv=(%form,%moreenv);
+  my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
   return $userview;
 }
 
@@ -2197,7 +2344,7 @@ 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'}));
+         $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
 }
 
 #########################################
@@ -2359,7 +2506,7 @@ other decorations will be returned.
 sub bodytag {
     my ($title,$function,$addentries,$bodyonly,$domain,$forcereg)=@_;
     $title=&mt($title);
-    $function = &get_users_function() if (! defined($function));
+    $function = &get_users_function() if (!$function);
     my $img=&designparm($function.'.img',$domain);
     my $pgbg=&designparm($function.'.pgbg',$domain);
     my $tabbg=&designparm($function.'.tabbg',$domain);
@@ -2408,10 +2555,26 @@ END
                '<h1>LON-CAPA: '.$title.'</h1>';
     } elsif ($ENV{'environment.remote'} eq 'off') {
 # No Remote
+	my $roleinfo=(<<ENDROLE);
+<td bgcolor="$tabbg" align="right">
+<p>
+<font size="2" face="Arial, Helvetica, sans-serif">
+    $ENV{'environment.firstname'}
+    $ENV{'environment.middlename'}
+    $ENV{'environment.lastname'}
+    $ENV{'environment.generation'}
+    </font>&nbsp;
+<br />
+<font size="2" face="Arial, Helvetica, sans-serif">$role</font>&nbsp;
+<br />
+<font size="2" face="Arial, Helvetica, sans-serif">$realm</font>&nbsp;
+</p>
+</td>
+ENDROLE
         return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
                                                       $forcereg).
-      '<table bgcolor="'.$pgbg.'" width="100%" border="0" cellspacing="3" cellpadding="3"><tr><td bgcolor="'.$tabbg.'"><font face="Arial, Helvetica, sans-serif" size="+3" color="'.$font.'"><b>'.$title.
-'</b></font></td></tr></table>';
+      '<table bgcolor="'.$pgbg.'" width="100%" border="0" cellspacing="3" cellpadding="3"><tr><td rowspan="3" bgcolor="'.$tabbg.'"><font face="Arial, Helvetica, sans-serif" size="+3" color="'.$font.'"><b>'.$title.
+'</b></font></td>'.$roleinfo.'</tr></table>';
     }
 
 #
@@ -2441,7 +2604,7 @@ $upperleft</td>
 </td></tr>
 <tr>
 <td bgcolor="$tabbg" align="right"><font size="2" face="Arial, Helvetica, sans-serif">$realm</font>&nbsp;</td></tr>
-</table><br>
+</table><br />
 ENDBODY
 }
 
@@ -3198,7 +3361,7 @@ plotted in.  If undefined, default value
 =item $Xlabels: Array ref containing the labels to be used for the X-axis.
 
 =item $Ydata: Array ref containing Array refs.  
-Each of the contained arrays will be plotted as a seperate curve.
+Each of the contained arrays will be plotted as a separate curve.
 
 =item %Values: hash indicating or overriding any default values which are 
 passed to graph.png.  
@@ -3536,6 +3699,13 @@ sub icon {
     return $iconname;
 } 
 
+sub connection_aborted {
+    my ($r)=@_;
+    $r->print(" ");$r->rflush();
+    my $c = $r->connection;
+    return $c->aborted();
+}
+
 =pod
 
 =back