--- loncom/homework/structuretags.pm	2001/02/19 21:02:59	1.33
+++ loncom/homework/structuretags.pm	2001/04/26 21:27:15	1.35
@@ -1,4 +1,5 @@
-# The LearningOnline Network with CAPA # <script> definiton
+# The LearningOnline Network with CAPA 
+# definition of tags that give a structure to a document
 # 2/19 Guy
 package Apache::structuretags; 
 
@@ -6,7 +7,7 @@ use strict;
 use Apache::lonnet;
 
 sub BEGIN {
-  &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','web','tex','part','preduedate','postanswerdate','solved','notsolved'));
+  &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext'));
 }
 
 sub start_web {
@@ -45,7 +46,7 @@ sub start_problem {
   &Apache::run::run($expression,$safeeval);
   my $status;
   my $datemsg;
-  if ($target ne 'meta') {
+  if ($target eq 'web' || $target eq 'grade') {
     ($status,$datemsg) = &Apache::lonhomework::check_date('0');
     push (@Apache::inputtags::status,$status);
     my $expression='$external::datestatus="'.$status.'";';
@@ -74,6 +75,13 @@ sub start_problem {
       return "<title>$name</title>\n<body bgcolor=\"#FFFFFF\">\n";
     }
   }
+  if ($target eq 'edit') {
+    return '<body bgcolor="#FFFFFF">
+<form name="lonhomework" method="POST" action="'.$ENV{'request.uri'}.'">
+<input type="hidden" name="submitted" value="edit" />
+<input type="submit" name="undo" value="undo" />
+';
+  }
   return '';
 }
 
@@ -81,7 +89,7 @@ sub end_problem {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;
   my $result='';
   my $status=$Apache::inputtags::status['-1'];
-  unless ($target eq 'meta') {
+  if ($target eq 'grade' || $target eq'web' ) {
     if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
        $status eq 'CAN_ANSWER') {
       # if part is zero, no <part>s existed, so we need to the grading
@@ -98,11 +106,17 @@ sub end_problem {
 	$result.="</body>\n"; 
       } 
     }
-  } else {
+  } 
+  if ($target eq 'meta') {
     if ($Apache::inputtags::part eq '0') {
+      
       $result=&Apache::response::mandatory_part_meta;
     }
   }
+  if ($target eq 'edit') {
+    &Apache::lonxml::debug("in end_problem with $target, edit");
+    $result='<br /><input type="submit" name="submit" value="Submit Changes" />';
+  }
   return $result;
 }
 
@@ -248,7 +262,7 @@ sub end_part {
 
 sub start_preduedate {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;
-  if ($target ne 'meta') {
+  if ($target eq 'web' || $target eq 'grade') {
     if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
 	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' ) {
       &Apache::lonxml::get_all_text("/preduedate",$$parser[$#$parser]);
@@ -263,7 +277,7 @@ sub end_preduedate {
 
 sub start_postanswerdate {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;
-  if ($target ne 'meta') {
+  if ($target eq 'web' || $target eq 'grade') {
     if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
       &Apache::lonxml::get_all_text("/postanswerdate",$$parser[$#$parser]);
     }
@@ -277,7 +291,7 @@ sub end_postanswerdate {
 
 sub start_notsolved {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;
-  if ($target ne 'meta') {
+  if ($target eq 'web' || $target eq 'grade') {
     my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
     &Apache::lonxml::debug("not solved has :$gradestatus:");
     if ($gradestatus =~ /^correct/) {
@@ -294,7 +308,7 @@ sub end_notsolved {
 
 sub start_solved {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;
-  if ($target ne 'meta') {
+  if ($target eq 'web' || $target eq 'grade') {
     my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
     if ($gradestatus !~ /^correct/) {
       &Apache::lonxml::get_all_text("/solved",$$parser[$#$parser]);
@@ -306,5 +320,44 @@ sub start_solved {
 sub end_solved {
   return '';
 }
+
+sub start_startouttext {
+  my ($target,$token,$parstack,$parser,$safeeval)=@_;
+  my @result=(''.'');
+  if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
+  return (@result);
+}
+sub end_startouttext {
+  my ($target,$token,$parstack,$parser,$safeeval)=@_;
+  my $result='';
+  my $text='';
+
+  if ($target eq 'edit') {
+    $text=&Apache::lonxml::get_all_text("endouttext",$$parser[$#$parser]);
+    $result=
+      &Apache::edit::tag_start("outtext").
+	&Apache::edit::editfield($token->[1],$text,"Text Block");
+  }
+  if ($target eq 'modified') {
+    $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']);
+    $result='<startouttext />'.&Apache::edit::modifiedfield();
+  }
+  return $result;
+}
+sub start_endouttext {
+  my ($target,$token,$parstack,$parser,$safeeval)=@_;
+  my $result='';
+  if ($target eq "edit" ) { $result=&Apache::edit::tag_end("outtext"); }
+  if ($target eq "modified") { $result='<endouttext />'; }
+  return $result;
+}
+sub end_endouttext {
+  my ($target,$token,$parstack,$parser,$safeeval)=@_;
+  my @result=('','');
+  if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
+  return (@result);
+}
+
+
 1;
 __END__
