--- loncom/homework/inputtags.pm	2006/03/09 00:41:24	1.188
+++ loncom/homework/inputtags.pm	2006/07/14 18:12:16	1.200
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # input  definitons
 #
-# $Id: inputtags.pm,v 1.188 2006/03/09 00:41:24 albertel Exp $
+# $Id: inputtags.pm,v 1.200 2006/07/14 18:12:16 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -31,6 +31,9 @@ use strict;
 use Apache::loncommon;
 use Apache::lonlocal;
 use Apache::lonnet;
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+ 
 
 BEGIN {
     &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
@@ -149,7 +152,7 @@ sub start_textfield {
 	    if ($addchars) {
 		$result.=&addchars('HWVAL_'.$resid,$addchars);
 	    }
-	    push @Apache::lonxml::htmlareafields,'HWVAL_'.$resid;
+	    &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
 	    $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
 		"rows=\"$rows\" cols=\"$cols\">".$oldresponse;
 	    if ($oldresponse ne '') {
@@ -222,21 +225,32 @@ sub end_textfield {
     return $result;
 }
 
-sub exam_box {
+sub exam_score_line {
     my ($target) = @_;
-    my $result;
 
+    my $result;
     if ($target eq 'tex') {
-	$result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
 	my $repetition = &Apache::response::repetition();
 	$result.='\begin{enumerate}';
+	if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
 	foreach my $i (0..$repetition-1) {
 	    $result.='\item[\textbf{'.
 		($Apache::lonxml::counter+$i).
 		'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
 	}
 	$result.= '\end{enumerate}';
+    }
+
+    return $result;
+}
+
+sub exam_box {
+    my ($target) = @_;
+    my $result;
 
+    if ($target eq 'tex') {
+	$result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
+	$result .= &exam_score_line($target);
     } elsif ($target eq 'web') {
 	my $id=$Apache::inputtags::response[-1];
 	$result.= '<br /><br />
@@ -252,7 +266,6 @@ sub needs_exam_box {
 		'stringresponse',
 		'reactionresponse',
 		'organicresponse',
-		'imageresponse',
 		);
 
     foreach my $tag (@tags) {
@@ -270,7 +283,10 @@ sub start_textline {
 	$Apache::lonxml::evaluate--;
 	my $partid=$Apache::inputtags::part;
 	my $id=$Apache::inputtags::response[-1];
-	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER'
+	    || lc($Apache::lonhomework::problemstatus) eq 'no'
+	    || ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER' 
+		&& $Apache::lonhomework::history{"resource.$partid.solved"} !~ /^correct/	)) {
 	    my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
 	    my $maxlength;
 	    if ($size eq '') { $size=20; } else {
@@ -285,12 +301,17 @@ sub start_textline {
 		}
 		my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
 							$safeeval);
-		if (lc($readonly) eq 'yes') {
+		if (lc($readonly) eq 'yes' 
+		    || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
 		    $readonly=' readonly="readonly" ';
 		} else {
 		    $readonly='';
 		}
-		$result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
+		my $name = 'HWVAL_'.$id;
+		if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
+		    $name = "none";
+		}
+		$result.= '<input type="text" '.$readonly.' name="'.$name.'" value="'.
 		    $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
 	    }
 	    if ($Apache::lonhomework::type eq 'exam'
@@ -355,6 +376,12 @@ sub start_hiddenline {
 	$result=&Apache::edit::tag_start($target,$token);
 	$result.=&Apache::edit::end_table;
     }
+
+    if ( ($target eq 'web' || $target eq 'tex')
+	 && $Apache::lonhomework::type eq 'exam'
+	 && &needs_exam_box($tagstack)) {
+	$result.=&exam_box($target);
+    }
     return $result;
 }
 
@@ -414,21 +441,28 @@ sub file_selector {
 	    '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
 	    '<br />';
 	if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
-	    my (@filelist,@bad_file_list);
-	    foreach my $file (split(',',&Apache::lonnet::unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
+	    my (@file_list,@bad_file_list);
+	    foreach my $file (split(/\s*,\s*/,&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
 		my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
 		my $url="/uploaded/$domain/$user/portfolio$file";
 		my $icon=&Apache::loncommon::icon($url);
-		push(@filelist,'<a href="'.$url.'"><img src="'.$icon.
+		push(@file_list,'<a href="'.$url.'"><img src="'.$icon.
 		     '" border="0" />'.$file.'</a>');
 		if (! &Apache::lonnet::stat_file($url)) {
+		    &Apache::lonnet::logthis("bad file is $url");
 		    push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
 			 '" border="0" />'.$file.'</a>');
 		}
 	    }
-	    $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
+	    my $files = '<span class="LC_filename">'.
+		join('</span>, <span class="LC_filename">',@file_list).
+		'</span>';
+	    $result.=&mt("Portfolio files previously selected: [_1]",$files);
 	    if (@bad_file_list) {
-		$result.='<br />'.&mt('<font color="red">These file(s) don\'t exist:</font> <strong>[_1]</strong>',join(', ',@bad_file_list));
+		my $bad_files = '<span class="LC_filename">'.
+		    join('</span>, <span class="LC_filename">',@bad_file_list).
+		    '</span>';
+		$result.='<br />'.&mt('<span class="LC_error">These file(s) don\'t exist:</span> [_1]',$bad_files);
 	    }
 	}
     }
@@ -523,8 +557,8 @@ sub decideoutput {
 
     if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
     
-    if      ($solved =~ /^correct/) {
-	$bgcolor=$possiblecolors{'correct'};
+    if ($solved =~ /^correct/) {
+        $bgcolor=$possiblecolors{'correct'};
 	$message=&mt('You are correct.');
 	if ($awarded < 1 && $awarded > 0) {
 	    $message=&mt('You are partially correct.');
@@ -691,6 +725,20 @@ sub decideoutput {
 	$message = &mt("Unknown message").": $award";
 	$button=1;
     }
+    my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
+    foreach my $resid(@Apache::inputtags::response){
+        if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
+	    $message.='<br />';
+	    my @files = split(/\s*,\s*/,
+			      $Apache::lonhomework::history{"resource.$part.$resid.handback"});
+	    my $file_msg;
+	    foreach my $file (@files) {
+		$file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
+	    }
+	    $message .= &mt('Returned file(s): [_1]',$file_msg);
+	}
+    }
+
     if (lc($Apache::lonhomework::problemstatus) eq 'no'  && 
 	$Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
 	$message = &mt("Answer Submitted: Your final submission will be graded after the due date.");