--- loncom/xml/lonxml.pm	2008/05/29 15:43:01	1.479
+++ loncom/xml/lonxml.pm	2009/04/13 20:42:32	1.493
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.479 2008/05/29 15:43:01 bisitz Exp $
+# $Id: lonxml.pm,v 1.493 2009/04/13 20:42:32 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -37,6 +37,25 @@
 # to any other parties under any circumstances.
 #
 
+=pod
+
+=head1 NAME
+
+Apache::lonxml
+
+=head1 SYNOPSIS
+
+XML Parsing Module
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+
+=head1 SUBROUTINES
+
+=cut
+
+
 
 package Apache::lonxml; 
 use vars 
@@ -361,8 +380,8 @@ sub xmlparse {
 				   $safeeval,\%style_for_target,1);
 
  if (@stack) {
-     &warning("At end of file some tags were still left unclosed, ".
-	      '<tt>&lt;'.join('&gt;</tt>, <tt>&lt;',reverse(@stack)).
+     &warning(&mt('At end of file some tags were still left unclosed:').
+	      ' <tt>&lt;'.join('&gt;</tt>, <tt>&lt;',reverse(@stack)).
 	      '&gt;</tt>');
  }
  if ($env{'request.uri'}) {
@@ -486,10 +505,10 @@ sub inner_xmlparse {
 	    while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
 		my $lasttag=$$stack[-1];
 		if ($token->[1] =~ /^\Q$lasttag\E$/i) {
-		    &Apache::lonxml::warning('Using tag &lt;/'.$token->[1].'&gt; on line '.$token->[3].' as end tag to &lt;'.$$stack[-1].'&gt;');
+		    &Apache::lonxml::warning(&mt('Using tag [_1] on line [_2] as end tag to [_3]','&lt;/'.$token->[1].'&gt;','.$token->[3].','&lt;'.$$stack[-1].'&gt;'));
 		    last;
 		} else {
-		    &Apache::lonxml::warning('Found tag &lt;/'.$token->[1].'&gt; on line '.$token->[3].' when looking for &lt;/'.$$stack[-1].'&gt; in file');
+                    &Apache::lonxml::warning(&mt('Found tag [_1] on line [_2] when looking for [_3] in file.','&lt;/'.$token->[1].'&gt;',$token->[3],'&lt;/'.$$stack[-1].'&gt;'));
 		    &end_tag($stack,$parstack,$token);
 		}
 	    }
@@ -505,11 +524,11 @@ sub inner_xmlparse {
 	  if (!$Apache::lonxml::usestyle) {
 	      $extras=$Apache::lonxml::style_values;
 	  }
-	if ( $#$parstack > -1 ) {
-	  $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
-	} else {
-	  $result= &Apache::run::evaluate($result,$safeeval,$extras);
-	}
+	  if ( $#$parstack > -1 ) {
+	      $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
+	  } else {
+	      $result= &Apache::run::evaluate($result,$safeeval,$extras);
+          }
       }
       $Apache::lonxml::post_evaluate=1;
 
@@ -658,6 +677,7 @@ sub setup_globals {
   $Apache::lonxml::request=$request;
   $errorcount=0;
   $warningcount=0;
+  $Apache::lonxml::internal_error=0;
   $Apache::lonxml::default_homework_loaded=0;
   $Apache::lonxml::usestyle=1;
   &init_counter();
@@ -718,6 +738,7 @@ sub init_safespace {
   $safeeval->permit(":base_math");
   $safeeval->permit("sort");
   $safeeval->permit("time");
+  $safeeval->permit("caller");
   $safeeval->deny("rand");
   $safeeval->deny("srand");
   $safeeval->deny(":base_io");
@@ -737,6 +758,9 @@ sub init_safespace {
   $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
 		  '&capa_formula_fix');
 
+  $safehole->wrap(\&Apache::lonlocal::locallocaltime,$safeeval,
+                  '&locallocaltime');
+
   $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
   $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
   $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
@@ -1080,7 +1104,7 @@ Optional Arguments:
 
 sub increment_counter {
     my ($increment, $part_response) = @_;
-    if ($env{'form.grade_target'} eq 'analyze') { return; }
+    if ($env{'form.grade_noincrement'}) { return; }
     if (!defined($increment) || $increment le 0) {
 	$increment = 1;
     }
@@ -1447,7 +1471,7 @@ sub storefile {
         $fh->close();
         return 1;
     } else {
-	&warning("Unable to save file $file");
+	&warning(&mt('Unable to save file [_1]','<tt>'.$file.'</tt>'));
 	return 0;
     }
 }
@@ -1480,6 +1504,15 @@ SIMPLECONTENT
   return $filecontents;
 }
 
+sub createnewjs {
+    my $filecontents=(<<SIMPLECONTENT);
+<script type="text/javascript" language="Javascript">
+
+</script>
+SIMPLECONTENT
+    return $filecontents;
+}
+
 sub verify_html {
     my ($filecontents)=@_;
     if ($filecontents!~/(?:\<|\&lt\;)(?:html|xml)[^\<]*(?:\>|\&gt\;)/is) {
@@ -1515,7 +1548,7 @@ sub renderingoptions {
        &mt('Math Rendering:').' '.
        &Apache::loncommon::select_form($env{'form.texengine'},'texengine',
                                                      ('' => '',
-                                                      'tth' => 'tth (Tex-to-HTML)',
+                                                      'tth' => 'tth (TeX to HTML)',
                                                       'jsMath' => 'jsMath',
                                                       'mimetex' => 'mimetex (Convert to Images)')).'
      </span>';
@@ -1527,6 +1560,7 @@ sub inserteditinfo {
       my $xml_help = '';
       my $initialize='';
       my $textarea_id = 'filecont';
+      my $dragmath_button;
       my ($add_to_onload, $add_to_onresize);
       $initialize=&Apache::lonhtmlcommon::spellheader();
       if ($filetype eq 'html' 
@@ -1564,6 +1598,10 @@ FULLPAGE
     }
 </script>
 FULLPAGE
+          if ($filetype eq 'html') {
+              $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup');
+              $dragmath_button = &Apache::lonhtmlcommon::dragmath_button('filecont',1);
+          }
       }
 
       $add_to_onload = 'initDocument();';
@@ -1582,9 +1620,12 @@ FULLPAGE
       my $spelllink .=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
       my $textarea_events = &Apache::edit::element_change_detection();
       my $form_events     = &Apache::edit::form_change_detection();
-      my $htmlerror=&verify_html($filecontents);
-      if ($htmlerror) {
-         $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
+      my $htmlerror;
+      if ($filetype eq 'html') {
+          $htmlerror=&verify_html($filecontents);
+          if ($htmlerror) {
+              $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
+          }
       }
       my $editfooter=(<<ENDFOOTER);
 $initialize
@@ -1600,7 +1641,7 @@ $initialize
     <div class="LC_edit_problem_discards">
       <input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
       <input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" />
-      $spelllink $htmlerror
+      $dragmath_button $spelllink $htmlerror
     </div>
     <div class="LC_edit_problem_saves">
       <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
@@ -1647,9 +1688,8 @@ sub get_target {
 
 sub handler {
     my $request=shift;
-    
+
     my $target=&get_target();
-    
     $Apache::lonxml::debug=$env{'user.debug'};
     
     &Apache::loncommon::content_type($request,'text/html');
@@ -1665,11 +1705,12 @@ sub handler {
 
     my $file=&Apache::lonnet::filelocation("",$request->uri);
     my $filetype;
-    if ($file =~ /\.sty$/) {
-	$filetype='sty';
+    if ($file =~ /\.(sty|css|js|txt)$/) {
+	$filetype=$1;
     } else {
 	$filetype='html';
     }
+
 #
 # Edit action? Save file.
 #
@@ -1698,7 +1739,9 @@ ENDNOTFOUND
 	if ($env{'request.state'} ne 'published') {
 	    if ($filetype eq 'sty') {
 		$filecontents=&createnewsty();
-	    } else {
+            } elsif ($filetype eq 'js') {
+                $filecontents=&createnewjs();
+            } elsif (($filetype ne 'css') && ($filetype ne 'txt')) {
 		$filecontents=&createnewhtml();
 	    }
 	    $env{'form.editmode'}='Edit'; #force edit mode
@@ -1714,27 +1757,43 @@ ENDNOTFOUND
 						    ['editmode']);
 	}
 	if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
-	    &Apache::structuretags::reset_problem_globals();
-	    $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
-						'',%mystyle);
+            if ($filetype eq 'html' || $filetype eq 'sty') {
+	        &Apache::structuretags::reset_problem_globals();
+	        $result = &Apache::lonxml::xmlparse($request,$target,
+                                                    $filecontents,'',%mystyle);
 	    # .html files may contain <problem> or <Task> need to clean
 	    # up if it did
-	    &Apache::structuretags::reset_problem_globals();
-	    &Apache::lonhomework::finished_parsing();
+	        &Apache::structuretags::reset_problem_globals();
+	        &Apache::lonhomework::finished_parsing();
+            } else {
+                $result = $filecontents;
+            }
 	    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 						    ['rawmode']);
 	    if ($env{'form.rawmode'}) { $result = $filecontents; }
-	    if ($filetype eq 'sty') {
+	    if ($filetype ne 'html') {
+                my $nochgview = 1; 
 		my $controls =
-		    ($env{'request.state'} eq 'construct') ? &Apache::londefdef::edit_controls()
+		    ($env{'request.state'} eq 'construct') ? &Apache::londefdef::edit_controls($nochgview)
 		                                           : '';
-		my %options = ('bgcolor' => '#FFFFFF');
-		$result = 
-		    &Apache::loncommon::start_page(undef,undef,\%options).
-		    $controls.
-		    $result.
-		    &Apache::loncommon::end_page();
-	    }
+                if ($filetype ne 'sty') {
+                    $result =~ s/</&lt;/g;
+                    $result =~ s/>/&gt;/g;
+                    $result = '<table class="LC_sty_begin">'.
+                              '<tr><td><b><pre>'.$result.
+                              '</pre></b></td></tr></table>';
+                }
+                if ($env{'environment.remote'} eq 'off') {
+                    my %options = ('bgcolor' => '#FFFFFF');
+		    $result = 
+		        &Apache::loncommon::start_page(undef,undef,\%options).
+		        $controls.
+		        $result.
+		        &Apache::loncommon::end_page();
+                } else {
+                    $result = $controls.$result;
+                }
+            }
 	}
     }
 
@@ -1768,7 +1827,7 @@ ENDNOTFOUND
 		&Apache::lonxml::message_location().
 		$edit_info.
 		&Apache::loncommon::end_page();
-	}
+        }
     }
     if ($filetype eq 'html') { &writeallows($request->uri); }
     
@@ -1824,6 +1883,8 @@ sub error {
 
     $errorcount++;
 
+    $Apache::lonxml::internal_error=1;
+
     if (defined($Apache::inputtags::part)) {
 	if ( @Apache::inputtags::response ) {
 	    push(@errors,
@@ -1840,15 +1901,17 @@ sub error {
     if ( &show_error_warn_msg() ) {
 	# If printing in construction space, put the error inside <pre></pre>
 	push(@Apache::lonxml::error_messages,
-	     $Apache::lonxml::warnings_error_header.
-             "<b>".&mt('ERROR:')."</b>".join("<br />\n",@errors)."<br />\n");
+	     $Apache::lonxml::warnings_error_header
+             .'<div class="LC_error">'
+             .'<b>'.&mt('ERROR:').' </b>'.join("<br />\n",@errors)
+             ."</div>\n");
 	$Apache::lonxml::warnings_error_header='';
     } else {
 	my $errormsg;
 	my ($symb)=&Apache::lonnet::symbread();
 	if ( !$symb ) {
 	    #public or browsers
-	    $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
+	    $errormsg=&mt("An error occurred while processing this resource. The author has been notified.");
 	}
 	my $host=$Apache::lonnet::perlvar{'lonHostID'};
 	push(@errors,
@@ -1887,9 +1950,9 @@ sub error {
 		}
 	    }
 	    if ($env{'request.role.adv'}) {
-		$errormsg=&mt("An error occured while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
+		$errormsg=&mt("An error occurred while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
 	    } else {
-		$errormsg=&mt("An error occured while processing this resource. The instructor has been notified.");
+		$errormsg=&mt("An error occurred while processing this resource. The instructor has been notified.");
 	    }
 	}
 	push(@Apache::lonxml::error_messages,"<b>$errormsg</b> <br />");
@@ -1902,8 +1965,11 @@ sub warning {
     if ($env{'form.grade_target'} ne 'tex') {
 	if ( &show_error_warn_msg() ) {
 	    push(@Apache::lonxml::warning_messages,
-		 $Apache::lonxml::warnings_error_header.
-		 "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n");
+		 $Apache::lonxml::warnings_error_header
+                .'<div class="LC_warning">'
+                .&mt('[_1]W[_2]ARNING','<b>','</b>')."<b>:</b> ".join('<br />',@_)
+                ."</div>\n"
+                );
 	    $Apache::lonxml::warnings_error_header='';
 	}
     }
@@ -2128,7 +2194,109 @@ sub get_tag {
     return $insertlist{"$tagnum.tag"};
 }
 
+############################################################
+#                                           PDF-FORM-METHODS
+
+=pod
+
+=item &print_pdf_radiobutton(fieldname, value,  text)
+
+Returns a latexline to generate a PDF-Form-Radiobutton with Text.
+
+$fieldname: PDF internalname of the radiobutton
+$value:     Value of radiobutton (read when dumping the PDF data)
+$text:      Text on the rightside of the radiobutton
+
+=cut
+sub print_pdf_radiobutton {
+    my $result = '';
+    my ($fieldName, $value, $text) = @_;
+    $result .= '\begin{tabularx}{\textwidth}{p{0cm}X}'."\n";
+    $result .= '\radioButton[\symbolchoice{circle}]{'. 
+               $fieldName.'}{10bp}{10bp}{'.$value.'}&'.$text."\n";
+    $result .= '\end{tabularx}' . "\n";
+    $result .= '\hspace{2mm}' . "\n";
+    return $result;
+}
+
+
+=pod
+
+=item &print_pdf_start_combobox(fieldname)
+
+Starts a latexline to generate a PDF-Form-Combobox with text.
+
+$fieldname: PDF internal name of the Combobox
+
+=cut
+sub print_pdf_start_combobox {
+    my $result;
+    my ($fieldName) = @_;
+    $result .= '\begin{tabularx}{\textwidth}{p{2.5cm}X}'."\n";
+    $result .= '\comboBox[]{'.$fieldName.'}{2.3cm}{14bp}{'; # 
+
+    return $result;
+}
+
+
+=pod
+
+=item &print_pdf_add_combobox_option(options)
+
+Generates a latexline to add Options to a PDF-Form-ComboBox.
+
+$option: PDF internal name of the Combobox-Option
+
+=cut
+sub print_pdf_add_combobox_option {
+
+    my $result;
+    my ($option) = @_;  
+
+    $result .= '('.$option.')';
+    
+    return $result;
+}
+
+
+=pod
+
+=item &print_pdf_end_combobox(text) {
+
+Returns latexcode to end a PDF-Form-Combobox with text.
+
+=cut
+sub print_pdf_end_combobox {
+    my $result;
+    my ($text) = @_;
+
+    $result .= '}&'.$text."\\\\\n";
+    $result .= '\end{tabularx}' . "\n";
+    $result .= '\hspace{2mm}' . "\n";
+    return $result;
+}
+
+
+=pod
+
+=item &print_pdf_hiddenField(fieldname, user, domain)
+
+Returns a latexline to generate a PDF-Form-hiddenField with userdata.
+
+$fieldname label for hiddentextfield
+$user:    name of user
+$domain:  domain of user
+
+=cut
+sub print_pdf_hiddenfield {
+    my $result;
+    my ($fieldname, $user, $domain) = @_;
+
+    $result .= '\textField [\F{\FHidden}\F{-\FPrint}\V{'.$domain.'&'.$user.'}]{'.$fieldname.'}{0in}{0in}'."\n";
+
+    return $result;
+}
+
 1;
 __END__
 
-