--- loncom/homework/inputtags.pm	2005/11/21 21:51:29	1.183
+++ loncom/homework/inputtags.pm	2006/07/20 21:48:07	1.204
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # input  definitons
 #
-# $Id: inputtags.pm,v 1.183 2005/11/21 21:51:29 albertel Exp $
+# $Id: inputtags.pm,v 1.204 2006/07/20 21:48:07 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'));
@@ -131,7 +134,7 @@ sub addchars {
 }
 
 sub start_textfield {
-    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result = "";
     my $id = &start_input($parstack,$safeeval);
     my $resid=$Apache::inputtags::response[-1];
@@ -149,23 +152,24 @@ 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 '') {
 
 		#get rid of any startup text if the user has already responded
-		&Apache::lonxml::get_all_text("/textfield",$parser);
+		&Apache::lonxml::get_all_text("/textfield",$parser,$style);
 	    }
 	} else {
 	    #right or wrong don't show it
 	    #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
 	    $result='';
 	    #get rid of any startup text
-	    &Apache::lonxml::get_all_text("/textfield",$parser);
+	    &Apache::lonxml::get_all_text("/textfield",$parser,$style);
 	}
     } elsif ($target eq 'grade') {
-	my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
+	my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
+						   $style);
 	if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
 	    # if the seed text is still there it wasn't a real submission
 	    $env{'form.HWVAL_'.$resid}='';
@@ -176,7 +180,8 @@ sub start_textfield {
 	$result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
 	$result.=&Apache::edit::text_arg
 	    ('Click-On Texts (comma sep):','addchars',$token,10);
-	my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
+	my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
+						   $style);
 	$result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
     } elsif ($target eq 'modified') {
 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
@@ -220,6 +225,57 @@ sub end_textfield {
     return $result;
 }
 
+sub exam_score_line {
+    my ($target) = @_;
+
+    my $result;
+    if ($target eq 'tex') {
+	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];
+	$result.= '<br /><br />
+                   <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
+                   </textarea> <br /><br />';
+    }
+    return $result;
+}
+
+sub needs_exam_box {
+    my ($tagstack) = @_;
+    my @tags = ('formularesponse',
+		'stringresponse',
+		'reactionresponse',
+		'organicresponse',
+		);
+
+    foreach my $tag (@tags) {
+	if (grep(/\Q$tag\E/,@$tagstack)) {
+	    return 1;
+	}
+    }
+    return 0;
+}
+
 sub start_textline {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result = "";
@@ -227,7 +283,7 @@ 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::response::show_answer()) {
 	    my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
 	    my $maxlength;
 	    if ($size eq '') { $size=20; } else {
@@ -242,14 +298,23 @@ 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'
+		&& &needs_exam_box($tagstack)) {
+		$result.=&exam_box($target);
+	    }
 	} else {
 	    #right or wrong don't show what was last typed in.
 	    $result='<b>'.$Apache::inputtags::answertxt{$id}.'</b>';
@@ -269,10 +334,16 @@ sub start_textline {
 						     $safeeval,'size',
 						     'addchars','readonly');
 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
-    } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
+    } elsif ($target eq 'tex' 
+	     && $Apache::lonhomework::type ne 'exam') {
 	my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
 	if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
 	$result='\framebox['.$size.'][s]{\tiny\strut}';
+
+    } elsif ($target eq 'tex' 
+	     && $Apache::lonhomework::type eq 'exam'
+	     && &needs_exam_box($tagstack)) {
+	$result.=&exam_box($target);
     }
     return $result;
 }
@@ -302,6 +373,12 @@ 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;
 }
 
@@ -361,15 +438,29 @@ 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;
-	    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>');
+		}
+	    }
+	    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) {
+		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);
 	    }
-	    $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
 	}
     }
     $result.='</td></tr>'; 
@@ -447,10 +538,11 @@ sub decideoutput {
     my $bgcolor='orange';
     my $added_computer_text=0;
     my %possiblecolors =
-	( 'correct' => '#aaffaa',
-	  'charged_try' => '#ffaaaa',
+	( 'correct'         => '#aaffaa',
+	  'charged_try'     => '#ffaaaa',
 	  'not_charged_try' => '#ffffaa',
-	  'no_message' => '#fffff',
+	  'no_grade'        => '#ffffaa',
+	  'no_message'      => '#ffffff',
 	  );
 
     my $part = $Apache::inputtags::part;
@@ -463,8 +555,8 @@ 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.');
@@ -609,7 +701,7 @@ sub decideoutput {
 	$button=1;
     } elsif ($award eq 'SUBMITTED') {
 	$message = &mt("Your submission has been recorded.");
-	$bgcolor=$possiblecolors{'correct'};
+	$bgcolor=$possiblecolors{'no_grade'};
 	$button=1;
     } elsif ($award eq 'DRAFT') {
 	$message = &mt("A draft copy has been saved.");
@@ -620,16 +712,35 @@ sub decideoutput {
 	$bgcolor=$possiblecolors{'correct'};
 	$button=0;
     } elsif ($award eq '') {
-	$bgcolor=$possiblecolors{'not_charged_try'};
+	if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
+	    $message = &mt("Nothing submitted.");
+	    $bgcolor=$possiblecolors{'charged_try'};
+	} else {
+	    $bgcolor=$possiblecolors{'not_charged_try'};
+	}
 	$button=1;
     } else {
 	$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.");
-	$bgcolor=$possiblecolors{'correct'};
+	$bgcolor=$possiblecolors{'no_grade'};
 	$button=1;
     }
     if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' && 
@@ -790,6 +901,9 @@ sub setgradedata {
 	return '';
     }
     $Apache::lonhomework::results{"resource.$id.award"} = $award;
+    if ($award eq 'SUBMITTED') {
+	&Apache::response::add_to_gradingqueue();
+    }
 }
 
 sub grade {