--- loncom/homework/lonhomework.pm	2005/11/21 21:51:29	1.226
+++ loncom/homework/lonhomework.pm	2006/03/24 17:34:11	1.237
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.226 2005/11/21 21:51:29 albertel Exp $
+# $Id: lonhomework.pm,v 1.237 2006/03/24 17:34:11 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -143,12 +143,6 @@ sub setup_vars {
 #  return ';$external::target='.$target.';';
 }
 
-sub send_header {
-    my ($request)= @_;
-    $request->print(&Apache::lontexconvert::header());
-#  $request->print('<form name='.$env{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');
-}
-
 sub createmenu {
     my ($which,$request)=@_;
     if ($which eq 'grade') {
@@ -159,20 +153,14 @@ sub createmenu {
     }
 }
 
-sub send_footer {
-    my ($request)= @_;
-#  $request->print('</form>');
-    $request->print(&Apache::lontexconvert::footer());
-}
-
 sub proctor_checked_in {
     my ($slot_name,$slot,$type)=@_;
     my @possible_proctors=split(",",$slot->{'proctor'});
     
     my $key;
     if ($type eq 'Task') {
-	my $version=$Apache::lonhomework::history{'resource.version'};
-	$key ="resource.$version.checkedin";
+	my $version=$Apache::lonhomework::history{'resource.0.version'};
+	$key ="resource.$version.0.checkedin";
     } elsif ($type eq 'problem') {
 	$key ='resource.0.checkedin';
     }
@@ -198,6 +186,8 @@ sub check_ip_acc {
     my $ip=$ENV{'REMOTE_ADDR'};
     my $name;
     foreach my $pattern (split(',',$acc)) {
+	$pattern =~ s/^\s*//;
+	$pattern =~ s/\s*$//;
 	if ($pattern =~ /\*$/) {
 	    #35.8.*
 	    $pattern=~s/\*//;
@@ -260,8 +250,8 @@ sub check_slot_access {
     
     if ($type eq 'Task') {
 	my $version=$Apache::lonhomework::history{'resource.version'};
-	if ($Apache::lonhomework::history{"resource.$version.checkedin"} &&
-	    $Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
+	if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
+	    $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
 	    return ('SHOW_ANSWER');
 	}
     }
@@ -295,28 +285,44 @@ sub check_slot_access {
 	$slotstatus='CAN_ANSWER';
     }
 
-    my ($pass_status,$checkedin);
+    my ($is_correct,$got_grade,$checkedin);
     if ($type eq 'Task') {
-	my $version=$Apache::lonhomework::history{'resource.version'};
-	$pass_status = 
-	    $Apache::lonhomework::history{"resource.$version.status"} eq 'fail';
+	my $version=$Apache::lonhomework::history{'resource.0.version'};
+	$got_grade = 
+	    ($Apache::lonhomework::history{"resource.$version.0.status"} 
+	     =~ /^(?:pass|fail)$/);
+	$is_correct =  
+	    ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
+	     || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
 	$checkedin =
-	    $Apache::lonhomework::history{"resource.$version.checkedin"};
+	    $Apache::lonhomework::history{"resource.$version.0.checkedin"};
     } elsif ($type eq 'problem') {
-	$pass_status = 1;
+	$got_grade = 1;
 	$checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
     }
     
+    &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
+    
+    # has a current checked in recrd, but hasn't got a grade, must be awaiting
+    # a grade
+    if ($checkedin 
+	&& !$got_grade) {
+	return ('WAITING_FOR_GRADE');
+    }
+
     if ($slotstatus eq 'NOT_IN_A_SLOT' 
 	&& $checkedin ) {
 
-	if ($pass_status) {
+	if ($got_grade) {
 	    return ('SHOW_ANSWER');
 	} else {
 	    return ('WAITING_FOR_GRADE');
 	}
 
     }
+    if ( $is_correct) {
+	return ('SHOW_ANSWER');
+    }
     if ( $status eq 'CANNOT_ANSWER' && 
 	 ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
 	return ($status,$datemsg);
@@ -638,8 +644,7 @@ sub analyze_header {
 
 sub analyze_footer {
     my ($request) = @_;
-    my $result='</body></html>';
-    $request->print($result);
+    $request->print(&Apache::loncommon::end_page());
     $request->rflush();
 }
 
@@ -753,23 +758,28 @@ sub editxmlmode {
 	my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,
 					($env{'environment.remote'} ne 'off'));
 	my $html=&Apache::lonxml::xmlbegin();
-	$result.=$html.$bodytag.
+	my $head="<head><title>EditXML $file</title>".
+	    &Apache::edit::js_change_detection()."</head>";
+
+	$result.=$html.$head.$bodytag.
 	    &renderpage($request,$file,['no_output_web'],1).
 	    &Apache::lonxml::message_location().'
-            <form name="lonhomework" method="POST" action="'.
+            <form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'.
 	    &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
 	    &Apache::structuretags::remember_problem_state().'
             <input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />
             <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
-            <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
+            <input type="submit" '.&Apache::edit::submit_ask_anyway().'name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
+            <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
             <hr />
             <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />
             <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />
-            <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
             <hr />
             ' . $xml_help . '
-            <textarea style="width:100%" rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
-	    &HTML::Entities::encode($problem,'<>&"').'</textarea>
+            <textarea '.&Apache::edit::element_change_detection().' style="width:100%" rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
+	    &HTML::Entities::encode($problem,'<>&"').'</textarea><br />
+            <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />
+            <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />
             </form></body></html>';
 	&Apache::lonxml::add_messages(\$result);
 	$request->print($result);
@@ -982,15 +992,6 @@ sub handler {
     &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
     my ($symb) = &Apache::lonxml::whichuser();
     &Apache::lonxml::debug('symb is '.$symb);
-    if ($env{'request.state'} eq "construct" || $symb eq '') {
-	if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
-	    $env{'form.resetdata'} eq &mt('New Problem Variation') ||
-	    $env{'form.newrandomization'} eq &mt('New Randomization')) {
-	    my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
-	    &Apache::lonnet::tmpreset($symb,'',$domain,$name);
-	    &Apache::lonxml::debug("Attempt reset");
-	}
-    }
     if ($env{'request.state'} eq "construct") {
 	if ( -e $file ) {
 	    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
@@ -1019,7 +1020,6 @@ sub handler {
     }
     #my $td=&tv_interval($t0);
     #&Apache::lonxml::debug("Spent $td seconds processing");
-    # &Apache::lonhomework::send_footer($request);
     # always turn off debug messages
     $Apache::lonxml::debug=0;
     return OK;