--- loncom/homework/inputtags.pm	2010/12/31 00:58:10	1.276
+++ loncom/homework/inputtags.pm	2012/09/14 11:23:58	1.309
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # input  definitons
 #
-# $Id: inputtags.pm,v 1.276 2010/12/31 00:58:10 raeburn Exp $
+# $Id: inputtags.pm,v 1.309 2012/09/14 11:23:58 goltermann Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -60,7 +60,7 @@ use LONCAPA;
  
 
 BEGIN {
-    &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
+    &Apache::lonxml::register('Apache::inputtags',('hiddensubmission','hiddenline','textfield','textline'));
 }
 
 =pod
@@ -185,7 +185,7 @@ sub start_textfield {
             }
         }
         unless ($newvariation) {
-	    $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
+	    $oldresponse = $Apache::lonhomework::history{"resource.$partid.$resid.submission"};
         }
 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
 	    my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
@@ -197,10 +197,12 @@ sub start_textfield {
 	    if ($addchars) {
 		$result.=&addchars('HWVAL_'.$resid,$addchars);
 	    }
-            my $textareaclass = 'class="LC_richDetectHtml"';
-	    $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
-		      'rows="'.$rows.'" cols="'.$cols.'" '.$textareaclass.'>'.
-                      $oldresponse;
+            my $textareaclass = 'class="LC_richDetectHtml spellchecked"';
+	    $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" ' .
+		      'rows="'.$rows.'" cols="'.$cols.'" '.$textareaclass
+		      . "onblur='\$(this).spellchecker(\"check\")'"
+		      .'>'.
+                      &HTML::Entities::encode($oldresponse,'<>&"');
 	    if ($oldresponse ne '') {
 
 		#get rid of any startup text if the user has already responded
@@ -251,10 +253,12 @@ sub start_textfield {
 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
 	    $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
 	} else {
-	    my $TeXwidth=$width_of_box/80;
-	    $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
-	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
-	    $result.='}}}\vskip 2 mm ';
+	    my $fieldname = $env{'request.symb'}.
+                    '&part_'. $Apache::inputtags::part.
+                    '&textresponse'.
+                    '&HWVAL_' . $Apache::inputtags::response['-1'];
+            $result.='\TextField[name='.$fieldname.',multiline=true,height=6\baselineskip,width=270,borderwidth=0,backgroundcolor={.85
+                .85 .85}]\\';
 	}
     }
     return $result;
@@ -381,7 +385,8 @@ sub start_textline {
 		    $name = "none";
 		}
 		$result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
-		    $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
+		    $oldresponse.'" class="spellchecked"  size="'.$size.'"'.$maxlength.'
+                    onblur=' . "'\$(this).spellchecker(\"check\")'"  . '/>';
 	    }
 	    if ($Apache::lonhomework::type eq 'exam'
 		&& &needs_exam_box($tagstack)) {
@@ -478,6 +483,49 @@ sub end_hiddenline {
     return "";
 }
 
+
+sub start_hiddensubmission {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my $result = "";
+    my $input_id = &start_input($parstack,$safeeval);
+    if ($target eq 'web') {
+        $Apache::lonxml::evaluate--;
+        if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+            my $partid=$Apache::inputtags::part;
+            my $id=$Apache::inputtags::response[-1];
+            if ($Apache::lonhomework::type ne 'exam') {
+                my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
+                $value = &HTML::Entities::encode($value,'<>&"');
+                $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.$value.'" />';
+            }
+        }
+    } elsif ($target eq 'edit') {
+        $result=&Apache::edit::tag_start($target,$token);
+        $result.=&Apache::edit::text_arg('Value:','value',$token,'15');
+        $result.=&Apache::edit::end_row();
+        $result.=&Apache::edit::end_table();
+    } elsif ($target eq 'modified') {
+        my $constructtag=&Apache::edit::get_new_args($token,$parstack,
+                                                     $safeeval,'value');
+        if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+    }
+
+    if ( ($target eq 'web' || $target eq 'tex')
+         && $Apache::lonhomework::type eq 'exam'
+         && &needs_exam_box($tagstack)) {
+        $result.=&exam_box($target);
+    }
+    return $result;
+}
+
+sub end_hiddensubmission {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
+    elsif ($target eq 'edit') { return ('','no'); }
+    &end_input();
+    return "";
+}
+
 =pod
 
 =item file_selector()
@@ -528,13 +576,25 @@ sub file_selector {
     if ($which eq 'uploadonly' || $which eq 'both') { 
 	$result.=&mt('Submit a file: (only one file per submission)').
 	    ' <br /><input type="file" size="50" name="HWFILE'.
-	    $jspart.'_'.$id.'" /><br />';
+	    $jspart.'_'.$id.'" id="HWFILE'.$jspart.'_'.$id.'" /><br />';
     }
     if ( $which eq 'both') {
 	$result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
     }
-    if ($which eq 'portfolioonly' || $which eq 'both') { 
-	$result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&amp;fieldname='.$env{'form.request.prefix'}.'HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
+    if ($which eq 'portfolioonly' || $which eq 'both') {
+        my $symb = $env{'request.symb'};
+        (undef,undef,my $res)=&Apache::lonnet::decode_symb($symb);
+        my $showsymb;
+        # If resource is a .task and URL is unencrypted, include symb in query string
+        # for url opened in portfolio file selection window. Can be used to override
+        # blocking of portfolio access resulting from an exam event in a different course. 
+        if ($res =~ /\.task$/i) {
+            my $encsymb = &Apache::lonenc::check_encrypt($symb);
+            if ($symb eq $encsymb) {
+                $showsymb = $symb;
+            }
+        }
+	$result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&amp;fieldname='.$env{'form.request.prefix'}.'HWPORT'.$jspart.'_'.$id.'&amp;symb='.$showsymb.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
 	    &mt('Select Portfolio Files: (one or more files per submission)').'</a><br />'.
 	    '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
 	    '<br />';
@@ -623,7 +683,7 @@ sub current_file_submissions {
                         }
                         $result .= 
                             '<td><a href="'.$link.'"><img src="'.$icon.
-                            '" border="0" />'.$showname.'</a></td>'."\n".
+                            '" border="0" alt="" />'.$showname.'</a></td>'."\n".
                             '<td align="right" valign="bottom">'.$rows{$url}{size}.'</td>'."\n".
                             '<td align="right" valign="bottom">'.$rows{$url}{lastmodified}.'</td>'."\n".
                             &Apache::loncommon::end_data_table_row();
@@ -633,9 +693,11 @@ sub current_file_submissions {
         }
     }
     if ($header_shown) {
-        $result .= &Apache::loncommon::end_data_table().
-                   '<br /><span class="LC_warning">'.
-                   &mt('Exclude existing file(s) from grading by checking the "Delete?" checkbox(es) and clicking "Submit Answer"').'</span>';
+        $result .= &Apache::loncommon::end_data_table();
+        if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+            $result .= '<br /><span class="LC_warning">'.
+                       &mt('Exclude existing file(s) from grading by checking the "Delete?" checkbox(es) and clicking "Submit Answer"').'</span>';
+        }
     }
     if (@bad_file_list) {
         my $bad_files = '<span class="LC_filename">'.
@@ -801,7 +863,7 @@ sub finalizeawards {
 }
 
 sub decideoutput {
-    my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
+    my ($award,$awarded,$awardmsg,$solved,$previous,$target,$nocorrect)=@_;
 
     my $message='';
     my $button=0;
@@ -819,8 +881,14 @@ sub decideoutput {
     my $part = $Apache::inputtags::part;
     my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
     my $handgrade = ('yes' eq lc($tohandgrade)); 
+#
+# Should "Computer's Answer" be displayed?
+# Should not be displayed if still answerable,
+# if the problem is handgraded,
+# or if the problem does not give a correct answer
+#
     
-    my $computer = ($handgrade)? ''
+    my $computer = ($handgrade || $nocorrect)? ''
 	                       : " ".&mt("Computer's answer now shown above.");
     &Apache::lonxml::debug("handgrade has :$handgrade:");
 
@@ -836,8 +904,8 @@ sub decideoutput {
 	    $message=&mt('Incorrect.');
 	    $css_class=$possible_class{'charged_try'};
 	}
-	if ($env{'request.filename'} =~ 
-	    m|/res/lib/templates/examupload.problem$|) {
+	if ($handgrade || 
+            ($env{'request.filename'}=~/\/res\/lib\/templates\/(examupload|DropBox).problem$/)) {
 	    $message = &mt("A score has been assigned.");
 	    $added_computer_text=1;
 	} else {
@@ -862,7 +930,13 @@ sub decideoutput {
 		}
 	    }
 	}
-	$button=0;
+        if ($awarded >= 1) {
+            $button=0;
+        } elsif (&Apache::lonnet::EXT("resource.$part.retrypartial") !~/^1|on|yes$/i) {
+            $button=0;
+        } else {
+            $button=1;
+        }
 	$previousmsg='';
     } elsif ($solved =~ /^excused/) {
 	if ($target eq 'tex') {
@@ -1021,6 +1095,7 @@ sub decideoutput {
     } elsif ($award eq 'ANONYMOUS_CREDIT') {
         $message = &mt("Your anonymous submission has been recorded, and credit awarded.");
         $css_class=$possible_class{'correct'};
+        $button=1;
     } elsif ($award eq 'DRAFT') {
 	$message = &mt("Copy saved but not submitted.");
 	$css_class=$possible_class{'not_charged_try'};
@@ -1071,7 +1146,17 @@ sub decideoutput {
     if (&Apache::lonhomework::hide_problem_status()
 	&& $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
 	&& &hide_award($award)) {
-	$message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
+        $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
+        my @interval= &Apache::lonnet::EXT("resource.$part.interval");
+        if ($interval[0] =~ /\d+/) {
+            my $first_access=&Apache::lonnet::get_first_access($interval[1]);
+            if (defined($first_access)) {
+                my $due_date= &Apache::lonnet::EXT("resource.$part.duedate");
+                unless (($due_date) && ($due_date < $first_access + $interval[0])) { 
+                    $message = &mt("Answer Submitted: Your final submission will be graded when the time limit is reached.");
+                }
+            }
+        }
 	$css_class=$possible_class{'no_grade'};
 	$button=1;
     }
@@ -1088,7 +1173,6 @@ sub decideoutput {
        }
        $message.=&mt('Submissions to practice problems are not permanently recorded.');
     }
-
     return ($button,$css_class,$message,$previousmsg);
 }
 
@@ -1141,8 +1225,7 @@ sub setgradedata {
 	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
 	$Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
 	return '';
-    } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
-	      /^correct/ 
+    } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} < 1
 	      || $Apache::lonhomework::scantronmode 
 	      || &Apache::lonhomework::hide_problem_status()  ) {
         # the student doesn't already have it correct,
@@ -1263,8 +1346,7 @@ sub setgradedata {
 		$Apache::lonhomework::results{"resource.$id.previous"} = '0';
 	    }
 	}
-    } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
-	      /^correct/ ) {
+    } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} == 1 ) {
 	#delete all data as they student already has it correct
 	&removealldata($id);
 	#and since they didn't do anything we were never here
@@ -1274,14 +1356,10 @@ sub setgradedata {
     if ($award eq 'SUBMITTED') {
 	&Apache::response::add_to_gradingqueue();
     }
-    if (($Apache::lonhomework::type eq 'anonsurvey') ||
-        ($Apache::lonhomework::type eq 'anonsurveycred') || 
-        ($Apache::lonhomework::type eq 'randomizetry')) {
-        $Apache::lonhomework::results{"resource.$id.type"} = $Apache::lonhomework::type;
-    }
-    if ($Apache::lonhomework::type eq 'randomizetry') {
-        $Apache::lonhomework::results{"resource.$id.rndseed"} = $env{'form.'.$id.'.rndseed'};
-    }
+    $Apache::lonhomework::results{"resource.$id.type"} = $Apache::lonhomework::type;
+    $Apache::lonhomework::results{"resource.$id.duedate"} = &Apache::lonnet::EXT("resource.$id.duedate");
+    $Apache::lonhomework::results{"resource.$id.hinttries"} = &Apache::lonnet::EXT("resource.$id.hinttries");
+    $Apache::lonhomework::results{"resourse.$id.version"} = &Apache::lonnet::usedversion(); 
 }
 
 sub find_which_previous {
@@ -1361,8 +1439,8 @@ sub grade {
 }
 
 sub get_grade_messages {
-    my ($id,$prefix,$target,$status) = @_;
-
+    my ($id,$prefix,$target,$status,$nocorrect) = @_;
+# nocorrect suppresses "Computer's answer now shown above"
     my ($message,$latemessage,$trystr,$previousmsg);
     my $showbutton = 1;
 
@@ -1376,7 +1454,7 @@ sub get_grade_messages {
 	&Apache::lonxml::debug('Getting message');
 	($showbutton,my $css_class,$message,$previousmsg) =
 	    &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
-			  $target);
+			  $target,(($status eq 'CAN_ANSWER') || $nocorrect));
 	if ($target eq 'tex') {
 	    $message='\vskip 2 mm '.$message.' ';
 	} else {
@@ -1394,28 +1472,30 @@ sub get_grade_messages {
     if ( $tries eq '' ) { $tries = '0'; }
     if ( $maxtries eq '' ) { $maxtries = '2'; } 
     if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
-    my $tries_text= &get_tries_text();;
+    my $tries_text= &get_tries_text();
     if ($showbutton) {
 	if ($target eq 'tex') {
 	    if ($env{'request.state'} ne "construct"
 		&& $Apache::lonhomework::type ne 'exam'
 		&& $env{'form.suppress_tries'} ne 'yes') {
-		$trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
-		    $tries.'/'.$maxtries.'} \vskip 2 mm ';
+		$trystr ='{\vskip 1 mm \small '
+                        .&mt('[_1]'.$tries_text.'[_2] [_3]'
+				,'\textit{','}',$tries.'/'.$maxtries ) 
+                        .'} \vskip 2 mm';
 	    } else {
 		$trystr = '\vskip 0 mm ';
 	    }
 	} else {
-	    $trystr = '<td><span class="LC_nobreak">'.&mt($tries_text)." $tries";
+	    my $trial =$tries;
 	    if ($Apache::lonhomework::parsing_a_task) {
 	    } elsif($env{'request.state'} ne 'construct') {
-		$trystr.="/$maxtries";
+		$trial.="/".&Apache::lonhtmlcommon::direct_parm_link($maxtries,$env{'request.symb'},'maxtries',$id,$target);
 	    } else {
 		if (defined($Apache::inputtags::params{'maxtries'})) {
-		    $trystr.="/".$Apache::inputtags::params{'maxtries'};
+		    $trial.="/".$Apache::inputtags::params{'maxtries'};
 		}
 	    }
-	    $trystr.="</span></td>";
+	    $trystr = '<td><span class="LC_nobreak">'.&mt($tries_text.' [_1]',$trial).'</span></td>';
 	}
     }
 
@@ -1444,12 +1524,19 @@ sub gradestatus {
 	 && $status ne 'UNAVAILABLE' 
 	 && $status ne 'INVALID_ACCESS' 
 	 && $status ne 'NEEDS_CHECKIN' 
-	 && $status ne 'NOT_IN_A_SLOT') {  
+	 && $status ne 'NOT_IN_A_SLOT'
+         && $status ne 'RESERVABLE'
+         && $status ne 'RESERVABLE_LATER'
+         && $status ne 'NOTRESERVABLE') {
+
+	if ($status eq 'SHOW_ANSWER') {
+            $showbutton = 0;
+        }
 
 	($previousmsg,$latemessage,$message,$trystr) =
 	    &get_grade_messages($id,"resource.$id",$target,$status,
 				$showbutton);
-	if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
+	if ($status eq 'CANNOT_ANSWER') {
 	    $showbutton = 0;
 	}
 	if ( $status eq 'SHOW_ANSWER') {
@@ -1522,11 +1609,21 @@ sub previous_tries {
 		) {
 		
                 my $txt_correct = &mt('Correct');
+                my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
+                if ($awarded < 1 && $awarded > 0) {
+                    $txt_correct=&mt('Partially Correct');
+                } elsif ($awarded < 1) {
+                    if ($awarded eq '') {
+                        $txt_correct='';
+                    } else {
+                        $txt_correct=&mt('Incorrect');
+                    }
+                }
 		$message =~ s{(<td.*?>)(.*?)(</td>)}
                              {$1 <strong>$txt_correct</strong>. $3}s;
 	    }
             my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
-            if ($curr_rndseed || $lastrndseed) {
+            if (($curr_rndseed || $lastrndseed) && ($i > 1)) {
                 if ($curr_rndseed ne $lastrndseed) {
                     $trystr .= '<br /><span style="color: green; white-space: nowrap; font-style: italic; font-weight: bold; font-size: 80%;">'.&mt('New problem variation this try.').'</span>';
                 }
@@ -1568,31 +1665,13 @@ sub previous_tries {
 	'</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
 	&mt('Submitted Answer').'</th>';
     $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
-    #return $output;
-    $output = &Apache::loncommon::js_ready($output); 
-    $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
 
-    my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
     my $tries_text = &get_tries_text('link');
-    my $start_page =
-	&Apache::loncommon::start_page($tries_text, undef,
-				       {'only_body'      => 1,
-					'bgcolor'        => '#FFFFFF',
-					'js_ready'       => 1,
-				        'inherit_jsmath' => 1, });
-    my $end_page =
-	&Apache::loncommon::end_page({'js_ready' => 1,});
     my $prefix = $env{'form.request.prefix'};
     $prefix =~ tr{.}{_};
     my $function_name = "LONCAPA_previous_tries_".$prefix.
 	$Apache::lonxml::curdepth.'_'.$env{'form.counter'};
-    my $result ="<script type=\"text/javascript\">
-// <![CDATA[
-    function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
-// ]]>
-</script><a href=\"javascript:$function_name();void(0);\">".&mt($tries_text)."</a><br />";
-    #use Data::Dumper;
-    #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
+    my $result = &Apache::loncommon::modal_adhoc_window($function_name,420,410,$output,&mt($tries_text))."<br />";
     return $result;
 }