Annotation of loncom/homework/inputtags.pm, revision 1.293

1.43      albertel    1: # The LearningOnline Network with CAPA
                      2: # input  definitons
1.47      albertel    3: #
1.293   ! raeburn     4: # $Id: inputtags.pm,v 1.292 2011/07/12 12:55:50 christianto Exp $
1.47      albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
1.1       albertel   27: 
1.249     jms        28: =pod
                     29: 
                     30: =head1 NAME
                     31: 
                     32: Apache::inputtags
                     33: 
                     34: =head1 SYNOPSIS
                     35: 
                     36: 
                     37: 
                     38: This is part of the LearningOnline Network with CAPA project
                     39: described at http://www.lon-capa.org.
                     40: 
                     41: 
                     42: =head1 NOTABLE SUBROUTINES
                     43: 
                     44: =over
                     45: 
                     46: =item 
                     47: 
                     48: =back
                     49: 
                     50: =cut
                     51: 
1.1       albertel   52: package Apache::inputtags;
1.55      albertel   53: use HTML::Entities();
1.1       albertel   54: use strict;
1.82      www        55: use Apache::loncommon;
1.265     raeburn    56: use Apache::lonhtmlcommon;
1.115     www        57: use Apache::lonlocal;
1.165     albertel   58: use Apache::lonnet;
1.192     www        59: use LONCAPA;
                     60:  
1.1       albertel   61: 
1.50      harris41   62: BEGIN {
1.286     www        63:     &Apache::lonxml::register('Apache::inputtags',('hiddensubmission','hiddenline','textfield','textline'));
1.1       albertel   64: }
                     65: 
1.249     jms        66: =pod
                     67: 
                     68: =item initialize_inputtags()
                     69: 
                     70: Initializes a set of global variables used during the parse of the problem.
                     71: 
                     72: @Apache::inputtags::input        - List of current input ids.
                     73: @Apache::inputtags::inputlist    - List of all input ids seen this problem.
                     74: @Apache::inputtags::response     - List of all current resopnse ids.
                     75: @Apache::inputtags::responselist - List of all response ids seen this 
                     76:                                      problem.
                     77: @Apache::inputtags::hint         - List of all hint ids.
                     78: @Apache::inputtags::hintlist     - List of all hint ids seen this problem.
                     79: @Apache::inputtags::previous     - List describing if specific responseds
                     80:                                      have been used
                     81: @Apache::inputtags::previous_version - Submission responses were used in.
                     82: $Apache::inputtags::part         - Current part id (valid only in 
                     83:                                      <problem>)
                     84:                                    0 if not in a part.
                     85: @Apache::inputtags::partlist     - List of part ids seen in the current
                     86:                                      <problem>
                     87: @Apache::inputtags::status       - List of problem  statuses. First 
                     88:                                    element is the status of the <problem>
                     89:                                    the remainder are for individual <part>s.
                     90: %Apache::inputtags::params       - Hash of defined parameters for the
                     91:                                    current response.
                     92: @Apache::inputtags::import       - List of all ids for <import> thes get
                     93:                                    join()ed and prepended.
                     94: @Apache::inputtags::importlist   - List of all import ids seen.
                     95: $Apache::inputtags::response_with_no_part
                     96:                                  - Flag set true if we have seen a response
                     97:                                    that is not inside a <part>
                     98: %Apache::inputtags::answertxt    - <*response> tags store correct
                     99:                                    answer strings for display by <textline/>
                    100:                                    in this hash.
                    101: %Apache::inputtags::submission_display
                    102:                                  - <*response> tags store improved display
                    103:                                    of submission strings for display by part
                    104:                                    end.
                    105: 
                    106: =cut
1.178     albertel  107: 
1.1       albertel  108: sub initialize_inputtags {
1.135     albertel  109:     @Apache::inputtags::input=();
                    110:     @Apache::inputtags::inputlist=();
1.174     albertel  111:     @Apache::inputtags::response=();
1.135     albertel  112:     @Apache::inputtags::responselist=();
1.174     albertel  113:     @Apache::inputtags::hint=();
1.173     albertel  114:     @Apache::inputtags::hintlist=();
1.135     albertel  115:     @Apache::inputtags::previous=();
                    116:     @Apache::inputtags::previous_version=();
                    117:     $Apache::inputtags::part='';
                    118:     @Apache::inputtags::partlist=();
                    119:     @Apache::inputtags::status=();
                    120:     %Apache::inputtags::params=();
                    121:     @Apache::inputtags::import=();
                    122:     @Apache::inputtags::importlist=();
                    123:     $Apache::inputtags::response_with_no_part=0;
1.144     albertel  124:     %Apache::inputtags::answertxt=();
1.217     albertel  125:     %Apache::inputtags::submission_display=();
1.103     albertel  126: }
                    127: 
                    128: sub check_for_duplicate_ids {
                    129:     my %check;
                    130:     foreach my $id (@Apache::inputtags::partlist,
                    131: 		    @Apache::inputtags::responselist,
1.173     albertel  132: 		    @Apache::inputtags::hintlist,
1.103     albertel  133: 		    @Apache::inputtags::importlist) {
                    134: 	$check{$id}++;
                    135:     }
                    136:     my @duplicates;
                    137:     foreach my $id (sort(keys(%check))) {
                    138: 	if ($check{$id} > 1) {
                    139: 	    push(@duplicates,$id);
                    140: 	}
                    141:     }
                    142:     if (@duplicates) {
                    143: 	&Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
                    144:     }
1.1       albertel  145: }
                    146: 
1.14      albertel  147: sub start_input {
1.135     albertel  148:     my ($parstack,$safeeval)=@_;
1.228     albertel  149:     my $id = &Apache::lonxml::get_id($parstack,$safeeval);
1.135     albertel  150:     push (@Apache::inputtags::input,$id);
                    151:     push (@Apache::inputtags::inputlist,$id);
                    152:     return $id;
1.14      albertel  153: }
                    154: 
                    155: sub end_input {
1.135     albertel  156:     pop @Apache::inputtags::input;
                    157:     return '';
1.14      albertel  158: }
                    159: 
1.124     www       160: sub addchars {
                    161:     my ($fieldid,$addchars)=@_;
                    162:     my $output='';
                    163:     foreach (split(/\,/,$addchars)) {
                    164: 	$output.='<a href="javascript:void(document.forms.lonhomework.'.
                    165: 	    $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
                    166:     }
                    167:     return $output;
                    168: }
                    169: 
1.48      albertel  170: sub start_textfield {
1.185     albertel  171:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.135     albertel  172:     my $result = "";
                    173:     my $id = &start_input($parstack,$safeeval);
                    174:     my $resid=$Apache::inputtags::response[-1];
                    175:     if ($target eq 'web') {
                    176: 	$Apache::lonxml::evaluate--;
1.205     albertel  177: 	my $partid=$Apache::inputtags::part;
1.274     raeburn   178:         my ($oldresponse,$newvariation);
                    179:         if ((($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry') ||
                    180:              ($Apache::lonhomework::type eq 'randomizetry')) &&
                    181:              ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
                    182:             if ($env{'form.'.$partid.'.rndseed'} ne
                    183:                 $Apache::lonhomework::history{"resource.$partid.rndseed"}) {
                    184:                 $newvariation = 1;
                    185:             }
                    186:         }
                    187:         unless ($newvariation) {
                    188: 	    $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
                    189:         }
1.135     albertel  190: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    191: 	    my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
                    192: 	    if ( $cols eq '') { $cols = 80; }
                    193: 	    my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
1.143     www       194: 	    if ( $rows eq '') { $rows = 16; }
1.135     albertel  195: 	    my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
                    196: 	    $result='';
                    197: 	    if ($addchars) {
                    198: 		$result.=&addchars('HWVAL_'.$resid,$addchars);
                    199: 	    }
1.266     raeburn   200:             my $textareaclass = 'class="LC_richDetectHtml"';
1.143     www       201: 	    $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
1.266     raeburn   202: 		      'rows="'.$rows.'" cols="'.$cols.'" '.$textareaclass.'>'.
                    203:                       $oldresponse;
1.135     albertel  204: 	    if ($oldresponse ne '') {
1.143     www       205: 
1.135     albertel  206: 		#get rid of any startup text if the user has already responded
1.185     albertel  207: 		&Apache::lonxml::get_all_text("/textfield",$parser,$style);
1.135     albertel  208: 	    }
                    209: 	} else {
1.205     albertel  210: 	    #show past answer in the essayresponse case
                    211: 	    if ($oldresponse =~ /\S/
                    212: 		&& &Apache::londefdef::is_inside_of($tagstack,
                    213: 						    'essayresponse') ) {
                    214: 		$result='<table class="LC_pastsubmission"><tr><td>'.
                    215: 		    $oldresponse.'</td></tr></table>';
                    216: 	    }
1.135     albertel  217: 	    #get rid of any startup text
1.185     albertel  218: 	    &Apache::lonxml::get_all_text("/textfield",$parser,$style);
1.61      albertel  219: 	}
1.135     albertel  220:     } elsif ($target eq 'grade') {
1.185     albertel  221: 	my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
                    222: 						   $style);
1.165     albertel  223: 	if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
1.135     albertel  224: 	    # if the seed text is still there it wasn't a real submission
1.165     albertel  225: 	    $env{'form.HWVAL_'.$resid}='';
1.135     albertel  226: 	}
                    227:     } elsif ($target eq 'edit') {
                    228: 	$result.=&Apache::edit::tag_start($target,$token);
                    229: 	$result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
                    230: 	$result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
                    231: 	$result.=&Apache::edit::text_arg
                    232: 	    ('Click-On Texts (comma sep):','addchars',$token,10);
1.185     albertel  233: 	my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
                    234: 						   $style);
1.135     albertel  235: 	$result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
                    236:     } elsif ($target eq 'modified') {
                    237: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    238: 						     $safeeval,'rows','cols',
                    239: 						     'addchars');
                    240: 	if ($constructtag) {
                    241: 	    $result = &Apache::edit::rebuild_tag($token);
                    242: 	} else {
                    243: 	    $result=$token->[4];
                    244: 	}
                    245: 	$result.=&Apache::edit::modifiedfield("/textfield",$parser);
                    246:     } elsif ($target eq 'tex') {
                    247: 	my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
                    248: 	my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
                    249: 	if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
                    250: 	    $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
                    251: 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
                    252: 	    $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
                    253: 	} else {
                    254: 	    my $TeXwidth=$width_of_box/80;
                    255: 	    $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
                    256: 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
                    257: 	    $result.='}}}\vskip 2 mm ';
                    258: 	}
1.60      albertel  259:     }
1.135     albertel  260:     return $result;
1.6       albertel  261: }
                    262: 
1.48      albertel  263: sub end_textfield {
1.135     albertel  264:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    265:     my $result;
                    266:     if ($target eq 'web') {
                    267: 	$Apache::lonxml::evaluate++;
                    268: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    269: 	    return "</textarea>";
                    270: 	}
                    271:     } elsif ($target eq 'edit') {
                    272: 	$result=&Apache::edit::end_table();
                    273:     }
                    274:     &end_input;
                    275:     return $result;
1.6       albertel  276: }
                    277: 
1.190     albertel  278: sub exam_score_line {
1.188     albertel  279:     my ($target) = @_;
1.190     albertel  280: 
1.188     albertel  281:     my $result;
                    282:     if ($target eq 'tex') {
                    283: 	my $repetition = &Apache::response::repetition();
                    284: 	$result.='\begin{enumerate}';
1.190     albertel  285: 	if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
1.188     albertel  286: 	foreach my $i (0..$repetition-1) {
                    287: 	    $result.='\item[\textbf{'.
                    288: 		($Apache::lonxml::counter+$i).
                    289: 		'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
                    290: 	}
                    291: 	$result.= '\end{enumerate}';
1.190     albertel  292:     }
                    293: 
                    294:     return $result;
                    295: }
                    296: 
                    297: sub exam_box {
                    298:     my ($target) = @_;
                    299:     my $result;
1.188     albertel  300: 
1.190     albertel  301:     if ($target eq 'tex') {
                    302: 	$result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
                    303: 	$result .= &exam_score_line($target);
1.188     albertel  304:     } elsif ($target eq 'web') {
                    305: 	my $id=$Apache::inputtags::response[-1];
                    306: 	$result.= '<br /><br />
                    307:                    <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
                    308:                    </textarea> <br /><br />';
                    309:     }
                    310:     return $result;
                    311: }
                    312: 
                    313: sub needs_exam_box {
                    314:     my ($tagstack) = @_;
                    315:     my @tags = ('formularesponse',
                    316: 		'stringresponse',
                    317: 		'reactionresponse',
                    318: 		'organicresponse',
                    319: 		);
                    320: 
                    321:     foreach my $tag (@tags) {
                    322: 	if (grep(/\Q$tag\E/,@$tagstack)) {
                    323: 	    return 1;
                    324: 	}
                    325:     }
                    326:     return 0;
                    327: }
                    328: 
1.1       albertel  329: sub start_textline {
1.135     albertel  330:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    331:     my $result = "";
1.210     albertel  332:     my $input_id = &start_input($parstack,$safeeval);
1.135     albertel  333:     if ($target eq 'web') {
                    334: 	$Apache::lonxml::evaluate--;
                    335: 	my $partid=$Apache::inputtags::part;
                    336: 	my $id=$Apache::inputtags::response[-1];
1.204     albertel  337: 	if (!&Apache::response::show_answer()) {
1.135     albertel  338: 	    my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
                    339: 	    my $maxlength;
                    340: 	    if ($size eq '') { $size=20; } else {
1.214     albertel  341: 		if ($size < 20) {
                    342: 		    $maxlength = ' maxlength="'.$size.'"';
                    343: 		}
1.135     albertel  344: 	    }
1.274     raeburn   345:             my ($oldresponse,$newvariation);
                    346:             if ((($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry') ||
                    347:                  ($Apache::lonhomework::type eq 'randomizetry')) &&
                    348:                  ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
                    349:                 if ($env{'form.'.$partid.'.rndseed'} ne
                    350:                     $Apache::lonhomework::history{"resource.$partid.rndseed"}) {
                    351:                     $newvariation = 1;
                    352:                 }
                    353:             }
                    354:             unless ($newvariation) {
                    355: 	        $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
                    356: 	        &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
                    357: 	        if (ref($oldresponse) eq 'ARRAY') {
                    358: 		    $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
                    359: 	        }
                    360: 	        $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
                    361:                 $oldresponse =~ s/^\s+//;
                    362:                 $oldresponse =~ s/\s+$//;
                    363:                 $oldresponse =~ s/\s+/ /g;
                    364:             }
1.135     albertel  365: 	    if ($Apache::lonhomework::type ne 'exam') {
                    366: 		my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
                    367: 		$result='';
                    368: 		if ($addchars) {
                    369: 		    $result.=&addchars('HWVAL_'.$id,$addchars);
                    370: 		}
1.157     albertel  371: 		my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
                    372: 							$safeeval);
1.193     albertel  373: 		if (lc($readonly) eq 'yes' 
                    374: 		    || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
1.157     albertel  375: 		    $readonly=' readonly="readonly" ';
1.158     albertel  376: 		} else {
                    377: 		    $readonly='';
1.157     albertel  378: 		}
1.193     albertel  379: 		my $name = 'HWVAL_'.$id;
                    380: 		if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
                    381: 		    $name = "none";
                    382: 		}
1.214     albertel  383: 		$result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
                    384: 		    $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
1.135     albertel  385: 	    }
1.188     albertel  386: 	    if ($Apache::lonhomework::type eq 'exam'
                    387: 		&& &needs_exam_box($tagstack)) {
                    388: 		$result.=&exam_box($target);
                    389: 	    }
1.135     albertel  390: 	} else {
                    391: 	    #right or wrong don't show what was last typed in.
1.208     albertel  392: 	    my $count = scalar(@Apache::inputtags::inputlist)-1;
                    393: 	    $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
1.144     albertel  394: 	    #$result='';
1.135     albertel  395: 	}
                    396:     } elsif ($target eq 'edit') {
                    397: 	$result=&Apache::edit::tag_start($target,$token);
                    398: 	$result.=&Apache::edit::text_arg('Size:','size',$token,'5').
1.157     albertel  399: 	    &Apache::edit::text_arg('Click-On Texts (comma sep):',
                    400: 				    'addchars',$token,10);
                    401:         $result.=&Apache::edit::select_arg('Readonly:','readonly',
                    402: 					   ['no','yes'],$token);
                    403: 	$result.=&Apache::edit::end_row();
                    404: 	$result.=&Apache::edit::end_table();
1.135     albertel  405:     } elsif ($target eq 'modified') {
1.157     albertel  406: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    407: 						     $safeeval,'size',
                    408: 						     'addchars','readonly');
1.135     albertel  409: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.188     albertel  410:     } elsif ($target eq 'tex' 
                    411: 	     && $Apache::lonhomework::type ne 'exam') {
1.135     albertel  412: 	my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
                    413: 	if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
1.257     onken     414: 	if ($env{'form.pdfFormFields'} eq 'yes'
                    415:             && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
1.246     onken     416:             my $fieldname = $env{'request.symb'}.
                    417:                                  '&part_'. $Apache::inputtags::part.
                    418:                                  '&textresponse'.
                    419:                                  '&HWVAL_' . $Apache::inputtags::response['-1'];
1.259     onken     420:             $result='\textField{'.$fieldname.'}{'.$size.'}{12 bp}';
1.246     onken     421:         } else {
                    422:             $result='\framebox['.$size.'][s]{\tiny\strut}';
                    423:         }
1.188     albertel  424:     } elsif ($target eq 'tex' 
                    425: 	     && $Apache::lonhomework::type eq 'exam'
                    426: 	     && &needs_exam_box($tagstack)) {
                    427: 	$result.=&exam_box($target);
1.135     albertel  428:     }
                    429:     return $result;
1.1       albertel  430: }
                    431: 
                    432: sub end_textline {
1.135     albertel  433:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    434:     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
                    435:     elsif ($target eq 'edit') { return ('','no'); }
1.208     albertel  436:     &end_input();
1.135     albertel  437:     return "";
1.9       albertel  438: }
                    439: 
1.98      albertel  440: sub start_hiddenline {
                    441:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    442:     my $result = "";
1.211     albertel  443:     my $input_id = &start_input($parstack,$safeeval);
1.98      albertel  444:     if ($target eq 'web') {
                    445: 	$Apache::lonxml::evaluate--;
                    446: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    447: 	    my $partid=$Apache::inputtags::part;
                    448: 	    my $id=$Apache::inputtags::response[-1];
1.211     albertel  449: 	    my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
                    450: 	    if (ref($oldresponse) eq 'ARRAY') {
                    451: 		$oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
                    452: 	    }
                    453: 	    $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
                    454: 
1.98      albertel  455: 	    if ($Apache::lonhomework::type ne 'exam') {
                    456: 		$result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
                    457: 		    $oldresponse.'" />';
                    458: 	    }
                    459: 	}
                    460:     } elsif ($target eq 'edit') {
                    461: 	$result=&Apache::edit::tag_start($target,$token);
                    462: 	$result.=&Apache::edit::end_table;
                    463:     }
1.189     albertel  464: 
                    465:     if ( ($target eq 'web' || $target eq 'tex')
                    466: 	 && $Apache::lonhomework::type eq 'exam'
                    467: 	 && &needs_exam_box($tagstack)) {
                    468: 	$result.=&exam_box($target);
                    469:     }
1.98      albertel  470:     return $result;
                    471: }
                    472: 
                    473: sub end_hiddenline {
1.135     albertel  474:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    475:     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
                    476:     elsif ($target eq 'edit') { return ('','no'); }
1.211     albertel  477:     &end_input();
1.135     albertel  478:     return "";
1.98      albertel  479: }
                    480: 
1.286     www       481: 
                    482: sub start_hiddensubmission {
                    483:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    484:     my $result = "";
                    485:     my $input_id = &start_input($parstack,$safeeval);
                    486:     if ($target eq 'web') {
                    487:         $Apache::lonxml::evaluate--;
                    488:         if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    489:             my $partid=$Apache::inputtags::part;
                    490:             my $id=$Apache::inputtags::response[-1];
                    491:             if ($Apache::lonhomework::type ne 'exam') {
                    492:                 my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
                    493:                 $value = &HTML::Entities::encode($value,'<>&"');
                    494:                 $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.$value.'" />';
                    495:             }
                    496:         }
                    497:     } elsif ($target eq 'edit') {
                    498:         $result=&Apache::edit::tag_start($target,$token);
                    499:         $result.=&Apache::edit::text_arg('Value:','value',$token,'15');
                    500:         $result.=&Apache::edit::end_row();
                    501:         $result.=&Apache::edit::end_table();
                    502:     } elsif ($target eq 'modified') {
                    503:         my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    504:                                                      $safeeval,'value');
                    505:         if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    506:     }
                    507: 
                    508:     if ( ($target eq 'web' || $target eq 'tex')
                    509:          && $Apache::lonhomework::type eq 'exam'
                    510:          && &needs_exam_box($tagstack)) {
                    511:         $result.=&exam_box($target);
                    512:     }
                    513:     return $result;
                    514: }
                    515: 
                    516: sub end_hiddensubmission {
                    517:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    518:     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
                    519:     elsif ($target eq 'edit') { return ('','no'); }
                    520:     &end_input();
                    521:     return "";
                    522: }
                    523: 
1.249     jms       524: =pod
                    525: 
                    526: =item file_selector()
                    527: 
                    528: $part -> partid
                    529: $id -> responseid
                    530: $uploadefiletypes -> comma seperated list of extensions allowed or * for any
1.252     raeburn   531: $which -> 'uploadonly'  -> only newly uploaded files
1.249     jms       532:           'portfolioonly' -> only allow files from portfolio
                    533:           'both' -> allow files from either location
                    534: $extratext -> additional text to go between the link and the input box
1.252     raeburn   535: $maxfilesize -> maximum cumulative filesize for submitted files (in MB).
1.249     jms       536: returns a table row <tr> 
                    537: 
                    538: =cut
                    539: 
1.160     albertel  540: sub file_selector {
1.252     raeburn   541:     my ($part,$id,$uploadedfiletypes,$which,$extratext,$maxfilesize)=@_;
1.160     albertel  542:     if (!$uploadedfiletypes) { return ''; }
1.167     albertel  543: 
                    544:     my $jspart=$part;
                    545:     $jspart=~s/\./_/g;
                    546: 
1.160     albertel  547:     my $result;
1.265     raeburn   548:     my $current_files_display = &current_file_submissions($part,$id);
                    549:     my $addfiles;
                    550:     if ($current_files_display) {
1.268     raeburn   551:         $result .= &Apache::lonhtmlcommon::row_title(&mt('Currently submitted files')).
1.265     raeburn   552:                    $current_files_display.
                    553:                    &Apache::lonhtmlcommon::row_closure();
                    554:         $addfiles = &mt('Submit other file(s)');
                    555:     } else {
                    556:         $addfiles = &mt('Choose file(s) to submit');
                    557:     }
                    558:     $result .= &Apache::lonhtmlcommon::row_title($addfiles);
                    559:     my $constraints;
                    560:     if ($uploadedfiletypes ne '*') {
                    561: 	$constraints =
                    562: 	    &mt('Allowed filetypes: [_1]','<b>'.$uploadedfiletypes.'</b>').'<br />';
                    563:     }
                    564:     if ($maxfilesize) {
                    565:         $constraints .= &mt('Combined size of all files not to exceed: [_1] MB[_2].',
                    566:                         '<b>'.$maxfilesize.'</b>').'<br />';
                    567:     }
                    568:     if ($constraints) {
                    569:         $result .= $constraints.'<br />';
1.162     albertel  570:     }
1.160     albertel  571:     if ($which eq 'uploadonly' || $which eq 'both') { 
1.265     raeburn   572: 	$result.=&mt('Submit a file: (only one file per submission)').
1.160     albertel  573: 	    ' <br /><input type="file" size="50" name="HWFILE'.
1.293   ! raeburn   574: 	    $jspart.'_'.$id.'" id="HWFILE'.$jspart.'_'.$id.'" /><br />';
1.160     albertel  575:     }
1.265     raeburn   576:     if ( $which eq 'both') {
1.160     albertel  577: 	$result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
                    578:     }
                    579:     if ($which eq 'portfolioonly' || $which eq 'both') { 
1.227     albertel  580: 	$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"))'."'".'>'.
1.265     raeburn   581: 	    &mt('Select Portfolio Files: (one or more files per submission)').'</a><br />'.
1.167     albertel  582: 	    '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
1.160     albertel  583: 	    '<br />';
1.265     raeburn   584: 
1.160     albertel  585:     }
1.265     raeburn   586:     $result.=&Apache::lonhtmlcommon::row_closure(1);
1.160     albertel  587:     return $result;
                    588: }
                    589: 
1.265     raeburn   590: sub current_file_submissions {
1.205     albertel  591:     my ($part,$id) = @_;
1.265     raeburn   592:     my $jspart=$part;
                    593:     $jspart=~s/\./_/g;
1.270     raeburn   594:     my $uploadedfile=$Apache::lonhomework::history{"resource.$part.$id.uploadedfile"};
1.265     raeburn   595:     my $portfiles=$Apache::lonhomework::history{"resource.$part.$id.portfiles"};
                    596:     return if (($uploadedfile eq '') && ($portfiles !~/[^\s]/));
                    597:     my $header = &Apache::loncommon::start_data_table().
1.270     raeburn   598:                  &Apache::loncommon::start_data_table_header_row();
                    599:     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    600:         $header .= '<th>'.&mt('Delete?').'</th>';
                    601:     }
1.271     raeburn   602:     $header .=   '<th>'.&mt('File').'</th>'.
1.265     raeburn   603:                  '<th>'.&mt('Size (MB)').'</th>'.
                    604:                  '<th>'.&mt('Last Modified').'</th>'.
                    605:                  &Apache::loncommon::end_data_table_header_row();
                    606:     my (undef,$crsid,$udom,$uname)=&Apache::lonnet::whichuser();
                    607:     my ($cdom,$cnum) = ($crsid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/);
1.271     raeburn   608:     my ($result,$header_shown,%okfiles,%rows,%legacy,@bad_file_list);
1.265     raeburn   609:     if ($uploadedfile) {
                    610:         my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
1.270     raeburn   611:         my $link = &HTML::Entities::encode($url,'<>&"');
                    612:         my ($path,$name) = ($url =~ m{^(/uploaded/\Q$udom\E/\Q$uname\E/essayresponse.*/)([^/]+)$});
1.265     raeburn   613:         my ($status,$hashref,$error) =
1.270     raeburn   614:             &current_file_info($url,$link,$name,$path);
1.265     raeburn   615:         if ($status eq 'ok') {
                    616:             push(@{$okfiles{$name}},$url);
                    617:             $rows{$url} = $hashref;
1.271     raeburn   618:             $legacy{$url} = 1;
1.265     raeburn   619:             &Apache::lonxml::extlink($url);
                    620:             &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
                    621:         } else {
                    622:             push(@bad_file_list,$error);
                    623:         }
                    624:     }
                    625:     if ($portfiles =~ /[^\s]/) {
                    626:         my $prefix = "/uploaded/$udom/$uname/portfolio";
                    627:         foreach my $file (split(/\s*,\s*/,&unescape($portfiles))) {
                    628:             my ($path,$name) = ($file =~ m{^(.*/)([^/]+)$});
                    629:             my $url = $prefix.$path.$name;
                    630:             my $uploadedfile = &HTML::Entities::encode($url,'<>&"');
                    631:             my ($status,$hashref,$error) =
                    632:                 &current_file_info($url,$uploadedfile,$name,$path);
                    633:             if ($status eq 'ok') {
                    634:                 push(@{$okfiles{$name}},$url);
                    635:                 $rows{$url} = $hashref;
                    636:             } else {
                    637:                 push(@bad_file_list,$error);
                    638:             }
                    639:         }
                    640:     }
1.276     raeburn   641:     my $num = 0;
1.265     raeburn   642:     foreach my $name (sort(keys(%okfiles))) {
                    643:         if (ref($okfiles{$name}) eq 'ARRAY') {
                    644:             foreach my $url (@{$okfiles{$name}}) {
                    645:                 if (ref($rows{$url}) eq 'HASH') {
                    646:                     my $link = $rows{$url}{link};
                    647:                     my $portfile = $rows{$url}{path}.$rows{$url}{name};
                    648:                     $portfile = &HTML::Entities::encode($portfile,'<>&"');
                    649:                     if ($link) {
                    650:                         my $icon=&Apache::loncommon::icon($url);
                    651:                         unless ($header_shown) {
                    652:                             $result .= $header;
                    653:                             $header_shown = 1;
                    654:                         }
                    655:                         $result.=
1.270     raeburn   656:                             &Apache::loncommon::start_data_table_row()."\n";
                    657:                         if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    658:                             $result .=
                    659:                                  '<td valign="bottom"><input type="checkbox" name="HWFILE'.$jspart.'_'.$id.'_delete"'.
1.273     raeburn   660:                                  ' value="'.$portfile.'" id="HWFILE'.$jspart.'_'.$id.'_'.$num.'_delete" /></td>'."\n";
                    661:                             $num ++;
1.270     raeburn   662:                         }
1.271     raeburn   663:                         my $showname = $rows{$url}{path}.$name;
                    664:                         if ($legacy{$url}) {
                    665:                             $showname = $name.' '.&mt('not in portfolio');
                    666:                         }
1.270     raeburn   667:                         $result .= 
1.265     raeburn   668:                             '<td><a href="'.$link.'"><img src="'.$icon.
1.277     raeburn   669:                             '" border="0" alt="" />'.$showname.'</a></td>'."\n".
1.265     raeburn   670:                             '<td align="right" valign="bottom">'.$rows{$url}{size}.'</td>'."\n".
                    671:                             '<td align="right" valign="bottom">'.$rows{$url}{lastmodified}.'</td>'."\n".
                    672:                             &Apache::loncommon::end_data_table_row();
                    673:                     }
                    674:                 }
                    675:             }
                    676:         }
                    677:     }
                    678:     if ($header_shown) {
1.273     raeburn   679:         $result .= &Apache::loncommon::end_data_table().
                    680:                    '<br /><span class="LC_warning">'.
1.276     raeburn   681:                    &mt('Exclude existing file(s) from grading by checking the "Delete?" checkbox(es) and clicking "Submit Answer"').'</span>';
1.205     albertel  682:     }
                    683:     if (@bad_file_list) {
1.265     raeburn   684:         my $bad_files = '<span class="LC_filename">'.
                    685:             join('</span>, <span class="LC_filename">',@bad_file_list).
                    686:             '</span>';
                    687:         $result.='<p class="LC_error">'.
                    688:                  &mt("These file(s) don't exist: [_1]",$bad_files).
                    689:                  '</p>';
1.205     albertel  690:     }
                    691:     return $result;
1.265     raeburn   692: }
1.205     albertel  693: 
1.265     raeburn   694: sub current_file_info {
                    695:     my ($url,$uploadedfile,$name,$path) = @_;
                    696:     my ($status,$error,%info);
                    697:     my @stat = &Apache::lonnet::stat_file($url);
                    698:     if ((@stat) && ($stat[0] ne 'no_such_dir')) {
                    699:         my ($lastmod,$size);
                    700:         if ($stat[9] =~ /^\d+$/) {
                    701:             $lastmod = &Apache::lonlocal::locallocaltime($stat[9]);
                    702:         }
                    703:         $size = $stat[7]/(1024*1024);
                    704:         $size = sprintf("%.3f",$size);
                    705:         %info = (
                    706:                     link         => $uploadedfile,
                    707:                     name         => $name,
                    708:                     path         => $path,
                    709:                     size         => $size,
                    710:                     lastmodified => $lastmod,
                    711:                 );
                    712:         $status = 'ok';
                    713:     } else {
                    714:         &Apache::lonnet::logthis("bad file is $url");
                    715:         my $icon=&Apache::loncommon::icon($url);
                    716:         $error = '<a href="'.$url.'"><img src="'.$icon.
                    717:                  '" border="0" />'.$uploadedfile.'</a>';
                    718:     }
                    719:     return ($status,\%info,$error);
1.205     albertel  720: }
                    721: 
1.179     albertel  722: sub valid_award {
                    723:     my ($award) =@_;
1.182     albertel  724:     foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
                    725: 			       'NO_RESPONSE',
1.179     albertel  726: 			       'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
                    727: 			       'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
                    728: 			       'UNIT_FAIL', 'NO_UNIT',
                    729: 			       'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
1.272     www       730: 			       'BAD_FORMULA', 'NOT_FUNCTION', 'WRONG_FORMAT', 
                    731:                                'INTERNAL_ERROR', 'SIG_FAIL', 'INCORRECT', 
1.179     albertel  732: 			       'MISORDERED_RANK', 'INVALID_FILETYPE',
1.264     raeburn   733:                                'EXCESS_FILESIZE', 'FILENAME_INUSE', 
                    734: 			       'DRAFT', 'SUBMITTED', 'SUBMITTED_CREDIT', 
1.261     raeburn   735:                                'ANONYMOUS', 'ANONYMOUS_CREDIT',
                    736:                                'ASSIGNED_SCORE', 'APPROX_ANS',
                    737: 			       'EXACT_ANS','COMMA_FAIL') {
1.179     albertel  738: 	if ($award eq $possibleaward) { return 1; }
                    739:     }
                    740:     return 0;
                    741: }
                    742: 
1.207     albertel  743: {
                    744:     my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
                    745: 		  'TOO_LONG',
                    746: 		  'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
                    747: 		  'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
1.272     www       748: 		  'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',  'NOT_FUNCTION', 
                    749:                   'WRONG_FORMAT', 'INTERNAL_ERROR',
1.207     albertel  750: 		  'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
1.264     raeburn   751: 		  'INVALID_FILETYPE', 'EXCESS_FILESIZE', 'FILENAME_INUSE', 
                    752:                   'DRAFT', 'SUBMITTED',
1.261     raeburn   753:                   'SUBMITTED_CREDIT', 'ANONYMOUS', 'ANONYMOUS_CREDIT',
1.248     raeburn   754:                   'ASSIGNED_SCORE', 'APPROX_ANS', 'EXACT_ANS');
1.207     albertel  755:     my $i=0;
                    756:     my %fwd_awards = map { ($_,$i++) } @awards;
                    757:     my $max=scalar(@awards);
                    758:     @awards=reverse(@awards);
1.208     albertel  759:     $i=0;
1.207     albertel  760:     my %rev_awards = map { ($_,$i++) } @awards;
                    761: 
1.232     albertel  762: sub awarddetail_to_awarded {
                    763:     my ($awarddetail) = @_;
                    764:     if ($awarddetail eq 'EXACT_ANS'
                    765: 	|| $awarddetail eq 'APPROX_ANS') {
                    766: 	return 1;
                    767:     }
                    768:     return 0;
                    769: }
                    770: 
1.233     albertel  771: sub hide_award {
                    772:     my ($award) = @_;
                    773:     if (&Apache::lonhomework::show_no_problem_status()) {
                    774: 	return 1;
                    775:     }
                    776:     if ($award =~
1.261     raeburn   777: 	/^(?:EXACT_ANS|APPROX_ANS|SUBMITTED|SUBMITTED_CREDIT|ANONYMOUS|ANONYMOUS_CREDIT|ASSIGNED_SCORE|INCORRECT)/) {
1.233     albertel  778: 	return 1;
                    779:     }
                    780:     return 0;
                    781: }
                    782: 
1.9       albertel  783: sub finalizeawards {
1.232     albertel  784:     my ($awardref,$msgref,$nameref,$reverse,$final_scantron)=@_;
1.207     albertel  785:     my $result;
1.136     albertel  786:     if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
1.135     albertel  787:     if ($result eq '' ) {
                    788: 	my $blankcount;
1.207     albertel  789: 	foreach my $award (@$awardref) {
1.135     albertel  790: 	    if ($award eq '') {
                    791: 		$result='MISSING_ANSWER';
                    792: 		$blankcount++;
                    793: 	    }
                    794: 	}
1.232     albertel  795: 	if ($blankcount == ($#$awardref + 1)) {
                    796: 	    return ('NO_RESPONSE');
                    797: 	}
1.135     albertel  798:     }
1.251     www       799: 
                    800:     if ($Apache::lonxml::internal_error) { $result='INTERNAL_ERROR'; }
                    801: 
1.232     albertel  802:     if (!$final_scantron && defined($result)) { return ($result); }
1.181     albertel  803: 
1.232     albertel  804:     # if in scantron mode, if the award for any response is 
                    805:     # assigned score, then the part gets an assigned score
                    806:     if ($final_scantron 
                    807: 	&& grep {$_ eq 'ASSIGNED_SCORE'} (@$awardref)) {
                    808: 	return ('ASSIGNED_SCORE');
                    809:     }
                    810: 
                    811:     # if in scantron mode, if the award for any response is 
                    812:     # correct and there are non-correct responses,
                    813:     # then the part gets an assigned score
                    814:     if ($final_scantron 
                    815: 	&& (grep { $_ eq 'EXACT_ANS' ||
                    816: 		   $_ eq 'APPROX_ANS'  } (@$awardref))
                    817: 	&& (grep { $_ ne 'EXACT_ANS' &&
                    818: 		   $_ ne 'APPROX_ANS'  } (@$awardref))) {
                    819: 	return ('ASSIGNED_SCORE');
                    820:     }
1.181     albertel  821:     # these awards are ordered from most important error through best correct
1.207     albertel  822:     my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
                    823: 
                    824:     my $best = $max;
                    825:     my $j=0;
                    826:     my $which;
                    827:     foreach my $award (@$awardref) {
                    828: 	if ($awards->{$award} < $best) {
                    829: 	    $best  = $awards->{$award};
                    830: 	    $which = $j;
                    831: 	}
                    832: 	$j++;
                    833:     }
1.232     albertel  834: 
1.207     albertel  835:     if (defined($which)) {
                    836: 	if (ref($nameref)) {
                    837: 	    return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
                    838: 	} else {
                    839: 	    return ($$awardref[$which],$$msgref[$which]);
                    840: 	}
1.135     albertel  841:     }
1.136     albertel  842:     return ('ERROR',undef);
1.9       albertel  843: }
1.207     albertel  844: }
1.9       albertel  845: 
1.10      albertel  846: sub decideoutput {
1.282     www       847:     my ($award,$awarded,$awardmsg,$solved,$previous,$target,$nocorrect)=@_;
1.251     www       848: 
1.135     albertel  849:     my $message='';
                    850:     my $button=0;
                    851:     my $previousmsg;
1.221     albertel  852:     my $css_class='orange';
1.148     albertel  853:     my $added_computer_text=0;
1.221     albertel  854:     my %possible_class =
                    855: 	( 'correct'         => 'LC_answer_correct',
                    856: 	  'charged_try'     => 'LC_answer_charged_try',
                    857: 	  'not_charged_try' => 'LC_answer_not_charged_try',
                    858: 	  'no_grade'        => 'LC_answer_no_grade',
                    859: 	  'no_message'      => 'LC_no_message',
1.135     albertel  860: 	  );
1.169     albertel  861: 
1.180     albertel  862:     my $part = $Apache::inputtags::part;
1.236     raeburn   863:     my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
                    864:     my $handgrade = ('yes' eq lc($tohandgrade)); 
1.282     www       865: #
                    866: # Should "Computer's Answer" be displayed?
                    867: # Should not be displayed if still answerable,
                    868: # if the problem is handgraded,
                    869: # or if the problem does not give a correct answer
                    870: #
1.180     albertel  871:     
1.282     www       872:     my $computer = ($handgrade || $nocorrect)? ''
1.203     www       873: 	                       : " ".&mt("Computer's answer now shown above.");
1.180     albertel  874:     &Apache::lonxml::debug("handgrade has :$handgrade:");
                    875: 
1.135     albertel  876:     if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
                    877:     
1.194     banghart  878:     if ($solved =~ /^correct/) {
1.221     albertel  879:         $css_class=$possible_class{'correct'};
1.170     albertel  880: 	$message=&mt('You are correct.');
                    881: 	if ($awarded < 1 && $awarded > 0) {
                    882: 	    $message=&mt('You are partially correct.');
1.221     albertel  883: 	    $css_class=$possible_class{'not_charged_try'};
1.170     albertel  884: 	} elsif ($awarded < 1) {
                    885: 	    $message=&mt('Incorrect.');
1.221     albertel  886: 	    $css_class=$possible_class{'charged_try'};
1.170     albertel  887: 	}
1.291     www       888: 	if ($handgrade || 
                    889:             ($env{'request.filename'}=~/\/res\/lib\/templates\/(examupload|DropBox).problem$/)) {
1.172     albertel  890: 	    $message = &mt("A score has been assigned.");
                    891: 	    $added_computer_text=1;
1.135     albertel  892: 	} else {
1.172     albertel  893: 	    if ($target eq 'tex') {
                    894: 		$message = '\textbf{'.$message.'}';
                    895: 	    } else {
                    896: 		$message = "<b>".$message."</b>";
1.180     albertel  897: 		$message.= $computer;
1.135     albertel  898: 	    }
1.172     albertel  899: 	    $added_computer_text=1;
1.235     albertel  900: 	    if ($awarded > 0) {
                    901: 		my ($symb) = &Apache::lonnet::whichuser();
                    902: 		if (($symb ne '') 
                    903: 		    &&
                    904: 		    ($env{'course.'.$env{'request.course.id'}.
1.237     www       905: 			      '.disable_receipt_display'} ne 'yes') &&
                    906:                     ($Apache::lonhomework::type ne 'practice')) { 
1.235     albertel  907: 		    $message.=(($target eq 'web')?'<br />':' ').
1.256     biermanm  908: 			&mt('Your receipt no. is [_1]',
1.235     albertel  909: 			    (&Apache::lonnet::receipt($Apache::inputtags::part).
                    910: 			     (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
                    911: 		}
1.135     albertel  912: 	    }
                    913: 	}
1.285     www       914:         if ($awarded==1) { $button=0; } else { $button=1; }
1.135     albertel  915: 	$previousmsg='';
                    916:     } elsif ($solved =~ /^excused/) {
                    917: 	if ($target eq 'tex') {
                    918: 	    $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
                    919: 	} else {
                    920: 	    $message = "<b>".&mt('You are excused from the problem.')."</b>";
                    921: 	}
1.221     albertel  922: 	$css_class=$possible_class{'charged_try'};
1.135     albertel  923: 	$button=0;
                    924: 	$previousmsg='';
                    925:     } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
                    926: 	if ($solved =~ /^incorrect/ || $solved eq '') {
1.144     albertel  927: 	    $message = &mt("Incorrect").".";
1.221     albertel  928: 	    $css_class=$possible_class{'charged_try'};
1.135     albertel  929: 	    $button=1;
                    930: 	} else {
1.144     albertel  931: 	    if ($target eq 'tex') {
                    932: 		$message = '\textbf{'.&mt('You are correct.').'}';
                    933: 	    } else {
                    934: 		$message = "<b>".&mt('You are correct.')."</b>";
1.180     albertel  935: 		$message.= $computer;
1.144     albertel  936: 	    }
1.148     albertel  937: 	    $added_computer_text=1;
1.235     albertel  938: 	    if  ($awarded > 0 
                    939: 		 && $env{'course.'.
1.165     albertel  940: 			     $env{'request.course.id'}.
1.235     albertel  941: 			     '.disable_receipt_display'} ne 'yes') { 
1.135     albertel  942: 		$message.=(($target eq 'web')?'<br />':' ').
1.235     albertel  943: 		    &mt('Your receipt is [_1]',
                    944: 			(&Apache::lonnet::receipt($Apache::inputtags::part).
                    945: 			 (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
1.135     albertel  946: 	    }
1.221     albertel  947: 	    $css_class=$possible_class{'correct'};
1.135     albertel  948: 	    $button=0;
                    949: 	    $previousmsg='';
                    950: 	}
                    951:     } elsif ($award eq 'NO_RESPONSE') {
                    952: 	$message = '';
1.221     albertel  953: 	$css_class=$possible_class{'no_feedback'};
1.135     albertel  954: 	$button=1;
1.182     albertel  955:     } elsif ($award eq 'EXTRA_ANSWER') {
                    956: 	$message = &mt('Some extra items were submitted.');
1.221     albertel  957: 	$css_class=$possible_class{'not_charged_try'};
1.182     albertel  958: 	$button = 1;
1.135     albertel  959:     } elsif ($award eq 'MISSING_ANSWER') {
1.245     bisitz    960: 	$message = &mt('Some items were not submitted.');
                    961:         if ($target ne 'tex') {
                    962:            $message .= &Apache::loncommon::help_open_topic('Some_Items_Were_Not_Submitted');
                    963:         }
1.221     albertel  964: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel  965: 	$button = 1;
                    966:     } elsif ($award eq 'ERROR') {
1.247     bisitz    967: 	$message = &mt('An error occurred while grading your answer.');
1.221     albertel  968: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel  969: 	$button = 1;
                    970:     } elsif ($award eq 'TOO_LONG') {
                    971: 	$message = &mt("The submitted answer was too long.");
1.221     albertel  972: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel  973: 	$button=1;
                    974:     } elsif ($award eq 'WANTED_NUMERIC') {
                    975: 	$message = &mt("This question expects a numeric answer.");
1.221     albertel  976: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel  977: 	$button=1;
                    978:     } elsif ($award eq 'MISORDERED_RANK') {
1.242     bisitz    979:         $message = &mt('You have provided an invalid ranking.');
                    980:         if ($target ne 'tex') {
                    981:             $message.=' '.&mt('Please refer to [_1]',&Apache::loncommon::help_open_topic('Ranking_Problems',&mt('help on ranking problems')));
                    982:         }
1.221     albertel  983: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel  984: 	$button=1;
1.248     raeburn   985:     } elsif ($award eq 'EXCESS_FILESIZE') {
                    986:         $message = &mt('Submission won\'t be graded. The combined size of submitted files exceeded the amount allowed.');
                    987:         $css_class=$possible_class{'not_charged_try'};
                    988:         $button=1;
1.264     raeburn   989:     } elsif ($award eq 'FILENAME_INUSE') {
                    990:         $message = &mt('You have already uploaded a file with that filename.');
                    991:         if ($target eq 'tex') {
                    992:             $message.= "\\\\\n";
                    993:         } else {
                    994:             $message .= '<br />';
                    995:         }
                    996:         $message .= &mt('Please use a different file name.');
                    997:         $css_class=$possible_class{'not_charged_try'};
                    998:         $button=1;
1.135     albertel  999:     } elsif ($award eq 'INVALID_FILETYPE') {
1.255     bisitz   1000: 	$message = &mt("Submission won't be graded. The type of file submitted is not allowed.");
1.221     albertel 1001: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel 1002: 	$button=1;
                   1003:     } elsif ($award eq 'SIG_FAIL') {
1.145     albertel 1004: 	my ($used,$min,$max)=split(':',$awardmsg);
1.212     albertel 1005: 	my $word = ($used < $min) ? 'more' : 'fewer';
1.250     bisitz   1006: 	$message = &mt("Submission not graded. Use $word digits.",$used);
1.221     albertel 1007: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel 1008: 	$button=1;
1.137     albertel 1009:     } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
                   1010: 	$message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
                   1011: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
1.221     albertel 1012: 	$css_class=$possible_class{'not_charged_try'};
1.137     albertel 1013: 	$button=1;
                   1014:     } elsif ($award eq 'UNIT_INVALID_STUDENT') {
1.155     albertel 1015: 	$message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
1.137     albertel 1016: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
1.221     albertel 1017: 	$css_class=$possible_class{'not_charged_try'};
1.137     albertel 1018: 	$button=1;
1.140     matthew  1019:     } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
1.155     albertel 1020: 	$message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
1.136     albertel 1021: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
1.221     albertel 1022: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel 1023: 	$button=1;
                   1024:     } elsif ($award eq 'UNIT_NOTNEEDED') {
1.155     albertel 1025: 	$message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
1.221     albertel 1026: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel 1027: 	$button=1;
                   1028:     } elsif ($award eq 'NO_UNIT') {
1.144     albertel 1029: 	$message = &mt("Units required").'.';
1.135     albertel 1030: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
1.221     albertel 1031: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel 1032: 	$button=1;
1.153     albertel 1033:     } elsif ($award eq 'COMMA_FAIL') {
                   1034: 	$message = &mt("Proper comma separation is required").'.';
1.221     albertel 1035: 	$css_class=$possible_class{'not_charged_try'};
1.153     albertel 1036: 	$button=1;
1.135     albertel 1037:     } elsif ($award eq 'BAD_FORMULA') {
1.240     www      1038: 	$message = &mt("Unable to understand formula").'.';
                   1039:         if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Formula_Answers')};
1.221     albertel 1040: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel 1041: 	$button=1;
1.272     www      1042:     } elsif ($award eq 'NOT_FUNCTION') {
                   1043:         $message = &mt("Not a function").'.';
                   1044:         $css_class=$possible_class{'not_charged_try'};
                   1045:         $button=1;
                   1046:     } elsif ($award eq 'WRONG_FORMAT') {
                   1047:         $message = &mt("Wrong format").'.';
                   1048:         $css_class=$possible_class{'not_charged_try'};
                   1049:         $button=1;
                   1050:      } elsif ($award eq 'INTERNAL_ERROR') {
1.251     www      1051:         $message = &mt("An internal error occurred while processing your answer. Please try again later.");
                   1052:         $css_class=$possible_class{'not_charged_try'};
                   1053:         $button=1;
1.135     albertel 1054:     } elsif ($award eq 'INCORRECT') {
1.144     albertel 1055: 	$message = &mt("Incorrect").'.';
1.221     albertel 1056: 	$css_class=$possible_class{'charged_try'};
1.135     albertel 1057: 	$button=1;
                   1058:     } elsif ($award eq 'SUBMITTED') {
                   1059: 	$message = &mt("Your submission has been recorded.");
1.221     albertel 1060: 	$css_class=$possible_class{'no_grade'};
1.135     albertel 1061: 	$button=1;
1.261     raeburn  1062:     } elsif ($award eq 'SUBMITTED_CREDIT') {
                   1063:         $message = &mt("Your submission has been recorded, and credit awarded.");
                   1064:         $css_class=$possible_class{'correct'};
                   1065:         $button=1;
                   1066:     } elsif ($award eq 'ANONYMOUS') {
                   1067:         $message = &mt("Your anonymous submission has been recorded.");
                   1068:         $css_class=$possible_class{'no_grade'};
                   1069:         $button=1;
                   1070:     } elsif ($award eq 'ANONYMOUS_CREDIT') {
                   1071:         $message = &mt("Your anonymous submission has been recorded, and credit awarded.");
                   1072:         $css_class=$possible_class{'correct'};
1.135     albertel 1073:     } elsif ($award eq 'DRAFT') {
1.258     riegler  1074: 	$message = &mt("Copy saved but not submitted.");
1.221     albertel 1075: 	$css_class=$possible_class{'not_charged_try'};
1.135     albertel 1076: 	$button=1;
                   1077:     } elsif ($award eq 'ASSIGNED_SCORE') {
1.144     albertel 1078: 	$message = &mt("A score has been assigned.");
1.221     albertel 1079: 	$css_class=$possible_class{'correct'};
1.135     albertel 1080: 	$button=0;
1.144     albertel 1081:     } elsif ($award eq '') {
1.186     albertel 1082: 	if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
                   1083: 	    $message = &mt("Nothing submitted.");
1.221     albertel 1084: 	    $css_class=$possible_class{'charged_try'};
1.186     albertel 1085: 	} else {
1.221     albertel 1086: 	    $css_class=$possible_class{'not_charged_try'};
1.186     albertel 1087: 	}
1.144     albertel 1088: 	$button=1;
1.135     albertel 1089:     } else {
                   1090: 	$message = &mt("Unknown message").": $award";
                   1091: 	$button=1;
                   1092:     }
1.209     albertel 1093:     my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
1.194     banghart 1094:     foreach my $resid(@Apache::inputtags::response){
                   1095:         if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
1.254     raeburn  1096:             if ($target eq 'tex') {
                   1097:                 $message.= "\\\\\n";
                   1098:             } else {
                   1099:                 $message.='<br />';
                   1100:             }
1.198     albertel 1101: 	    my @files = split(/\s*,\s*/,
                   1102: 			      $Apache::lonhomework::history{"resource.$part.$resid.handback"});
                   1103: 	    my $file_msg;
                   1104: 	    foreach my $file (@files) {
1.254     raeburn  1105:                 if ($target eq 'tex') {
                   1106:                     $file_msg.= "\\\\\n".$file;
                   1107:                 } else {
                   1108:                     $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
                   1109:                 }
1.198     albertel 1110: 	    }
                   1111: 	    $message .= &mt('Returned file(s): [_1]',$file_msg);
1.254     raeburn  1112:             if ($target eq 'tex') {
                   1113:                 $message.= "\\\\\n";
                   1114:             } else {
                   1115:                 $message.='<br />';
                   1116:             }
1.198     albertel 1117: 	}
1.194     banghart 1118:     }
                   1119: 
1.233     albertel 1120:     if (&Apache::lonhomework::hide_problem_status()
                   1121: 	&& $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
                   1122: 	&& &hide_award($award)) {
1.135     albertel 1123: 	$message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
1.221     albertel 1124: 	$css_class=$possible_class{'no_grade'};
1.135     albertel 1125: 	$button=1;
                   1126:     }
1.148     albertel 1127:     if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' && 
1.150     albertel 1128: 	!$added_computer_text && $target ne 'tex') {
1.180     albertel 1129: 	$message.= $computer;
1.148     albertel 1130: 	$added_computer_text=1;
1.144     albertel 1131:     }
1.237     www      1132:     if ($Apache::lonhomework::type eq 'practice') {
1.244     raeburn  1133:        if ($target eq 'web') {
                   1134:            $message .= '<br />';
                   1135:        } else {
                   1136:            $message .= ' ';      
                   1137:        }
                   1138:        $message.=&mt('Submissions to practice problems are not permanently recorded.');
1.237     www      1139:     }
1.221     albertel 1140:     return ($button,$css_class,$message,$previousmsg);
1.12      albertel 1141: }
                   1142: 
1.155     albertel 1143: sub markup_unit {
                   1144:     my ($unit,$target)=@_;
                   1145:     if ($target eq 'tex') {
                   1146: 	return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}'; 
                   1147:     } else {
                   1148: 	return "<tt>".$unit."</tt>";
                   1149:     }
                   1150: }
                   1151: 
1.88      albertel 1152: sub removealldata {
1.87      albertel 1153:     my ($id)=@_;
                   1154:     foreach my $key (keys(%Apache::lonhomework::results)) {
                   1155: 	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
                   1156: 	    &Apache::lonxml::debug("Removing $key");
                   1157: 	    delete($Apache::lonhomework::results{$key});
                   1158: 	}
                   1159:     }
                   1160: }
                   1161: 
1.142     albertel 1162: sub hidealldata {
                   1163:     my ($id)=@_;
                   1164:     foreach my $key (keys(%Apache::lonhomework::results)) {
                   1165: 	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
                   1166: 	    &Apache::lonxml::debug("Hidding $key");
                   1167: 	    my $newkey=$key;
                   1168: 	    $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
                   1169: 	    $Apache::lonhomework::results{$newkey}=
                   1170: 		$Apache::lonhomework::results{$key};
                   1171: 	    delete($Apache::lonhomework::results{$key});
                   1172: 	}
                   1173:     }
                   1174: }
                   1175: 
1.12      albertel 1176: sub setgradedata {
1.136     albertel 1177:     my ($award,$msg,$id,$previously_used) = @_;
1.154     albertel 1178:     if ($Apache::lonhomework::scantronmode && 
1.165     albertel 1179: 	&Apache::lonnet::validCODE($env{'form.CODE'})) {
                   1180: 	$Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
1.154     albertel 1181:     } elsif ($Apache::lonhomework::scantronmode && 
1.165     albertel 1182: 	     $env{'form.CODE'} eq '' &&
1.154     albertel 1183: 	     $Apache::lonhomework::history{"resource.CODE"} ne '') {
                   1184: 	$Apache::lonhomework::results{"resource.CODE"}='';
1.141     albertel 1185:     }
1.154     albertel 1186: 
1.135     albertel 1187:     if (!$Apache::lonhomework::scantronmode &&
                   1188: 	$Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
                   1189: 	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
                   1190: 	$Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
1.87      albertel 1191: 	return '';
1.284     www      1192:     } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} < 1
1.233     albertel 1193: 	      || $Apache::lonhomework::scantronmode 
                   1194: 	      || &Apache::lonhomework::hide_problem_status()  ) {
1.154     albertel 1195:         # the student doesn't already have it correct,
                   1196: 	# or we are in a mode (scantron orno problem status) where a correct 
                   1197:         # can become incorrect
                   1198: 	# handle assignment of tries and solved status
1.135     albertel 1199: 	my $solvemsg;
                   1200: 	if ($Apache::lonhomework::scantronmode) {
                   1201: 	    $solvemsg='correct_by_scantron';
                   1202: 	} else {
                   1203: 	    $solvemsg='correct_by_student';
                   1204: 	}
                   1205: 	if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
                   1206: 	    $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
                   1207: 	}
                   1208: 	if ( $award eq 'ASSIGNED_SCORE') {
                   1209: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                   1210: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                   1211: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                   1212: 		$solvemsg;
                   1213: 	    my $numawards=scalar(@Apache::inputtags::response);
                   1214: 	    $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                   1215: 	    foreach my $res (@Apache::inputtags::response) {
1.232     albertel 1216: 		if (defined($Apache::lonhomework::results{"resource.$id.$res.awarded"})) {
                   1217: 		    $Apache::lonhomework::results{"resource.$id.awarded"}+=
                   1218: 			$Apache::lonhomework::results{"resource.$id.$res.awarded"};
                   1219: 		} else {
                   1220: 		    $Apache::lonhomework::results{"resource.$id.awarded"}+=
                   1221: 			&awarddetail_to_awarded($Apache::lonhomework::results{"resource.$id.$res.awarddetail"});
                   1222: 		}
1.135     albertel 1223: 	    }
                   1224: 	    if ($numawards > 0) {
                   1225: 		$Apache::lonhomework::results{"resource.$id.awarded"}/=
                   1226: 		    $numawards;
                   1227: 	    }
                   1228: 	} elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
                   1229: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                   1230: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                   1231: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                   1232: 		$solvemsg;
                   1233: 	    $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1.261     raeburn  1234:         } elsif ( $award eq 'SUBMITTED_CREDIT' ) {
                   1235:             $Apache::lonhomework::results{"resource.$id.tries"} =
                   1236:                 $Apache::lonhomework::history{"resource.$id.tries"} + 1;
                   1237:             $Apache::lonhomework::results{"resource.$id.solved"} =
                   1238:                 'credit_attempted';
                   1239:             $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
                   1240:         }  elsif ( $award eq 'ANONYMOUS_CREDIT' ) {
                   1241:             $Apache::lonhomework::results{"resource.$id.tries"} =
                   1242:                 $Apache::lonhomework::history{"resource.$id.tries"} + 1;
                   1243:             $Apache::lonhomework::results{"resource.$id.solved"} =
                   1244:                 'credit_attempted';
                   1245:             $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1.135     albertel 1246: 	} elsif ( $award eq 'INCORRECT' ) {
                   1247: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                   1248: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
1.233     albertel 1249: 	    if (&Apache::lonhomework::hide_problem_status()
                   1250: 		|| $Apache::lonhomework::scantronmode) {
1.135     albertel 1251: 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                   1252: 	    }
                   1253: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                   1254: 		'incorrect_attempted';
                   1255: 	} elsif ( $award eq 'SUBMITTED' ) {
                   1256: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                   1257: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                   1258: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                   1259: 		'ungraded_attempted';
1.261     raeburn  1260:         }  elsif ( $award eq 'ANONYMOUS' ) {
                   1261:             $Apache::lonhomework::results{"resource.$id.tries"} =
                   1262:                 $Apache::lonhomework::history{"resource.$id.tries"} + 1;
                   1263:             $Apache::lonhomework::results{"resource.$id.solved"} =
                   1264:                 'ungraded_attempted';
1.135     albertel 1265: 	} elsif ( $award eq 'DRAFT' ) {
                   1266: 	    $Apache::lonhomework::results{"resource.$id.solved"} = '';
                   1267: 	} elsif ( $award eq 'NO_RESPONSE' ) {
                   1268: 	    #no real response so delete any data that got stored
1.129     albertel 1269: 	    &removealldata($id);
                   1270: 	    return '';
                   1271: 	} else {
1.135     albertel 1272: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                   1273: 		'incorrect_attempted';
1.233     albertel 1274: 	    if (&Apache::lonhomework::show_no_problem_status()
                   1275: 		|| $Apache::lonhomework::scantronmode) {
1.135     albertel 1276: 		$Apache::lonhomework::results{"resource.$id.tries"} =
                   1277: 		    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
                   1278: 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                   1279: 	    }
1.233     albertel 1280: 
                   1281: 	    if (&Apache::lonhomework::show_some_problem_status()) {
                   1282: 		# clear out the awarded if they had gotten it wrong/right
                   1283: 		# and are now in an error mode	
                   1284: 		$Apache::lonhomework::results{"resource.$id.awarded"} = '';
                   1285: 	    }
1.135     albertel 1286: 	}
1.136     albertel 1287: 	if (defined($msg)) {
                   1288: 	    $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
                   1289: 	}
1.135     albertel 1290: 	# did either of the overall awards chage? If so ignore the 
                   1291: 	# previous check
                   1292: 	if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
                   1293: 	     $Apache::lonhomework::history{"resource.$id.awarded"}) &&
                   1294: 	    ($Apache::lonhomework::results{"resource.$id.solved"} eq
                   1295: 	     $Apache::lonhomework::history{"resource.$id.solved"})) {
                   1296: 	    # check if this was a previous submission if it was delete the
                   1297: 	    # unneeded data and update the previously_used attribute
                   1298: 	    if ( $previously_used eq 'PREVIOUSLY_USED') {
1.233     albertel 1299: 		if (&Apache::lonhomework::show_problem_status()) {
1.135     albertel 1300: 		    delete($Apache::lonhomework::results{"resource.$id.tries"});
                   1301: 		    $Apache::lonhomework::results{"resource.$id.previous"} = '1';
                   1302: 		}
                   1303: 	    } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
                   1304: 		#delete all data as they student didn't do anything, but save
                   1305: 		#the list of collaborators.
                   1306: 		&removealldata($id);
                   1307: 		#and since they didn't do anything we were never here
                   1308: 		return '';
                   1309: 	    } else {
                   1310: 		$Apache::lonhomework::results{"resource.$id.previous"} = '0';
                   1311: 	    }
1.101     albertel 1312: 	}
1.283     www      1313:     } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} == 1 ) {
1.135     albertel 1314: 	#delete all data as they student already has it correct
                   1315: 	&removealldata($id);
                   1316: 	#and since they didn't do anything we were never here
                   1317: 	return '';
1.40      albertel 1318:     }
1.135     albertel 1319:     $Apache::lonhomework::results{"resource.$id.award"} = $award;
1.184     albertel 1320:     if ($award eq 'SUBMITTED') {
                   1321: 	&Apache::response::add_to_gradingqueue();
                   1322:     }
1.288     www      1323:     $Apache::lonhomework::results{"resource.$id.type"} = $Apache::lonhomework::type;
1.289     www      1324:     $Apache::lonhomework::results{"resource.$id.duedate"} = &Apache::lonnet::EXT("resource.$id.duedate");
                   1325:     $Apache::lonhomework::results{"resource.$id.hinttries"} = &Apache::lonnet::EXT("resource.$id.hinttries");
1.290     www      1326:     $Apache::lonhomework::results{"resourse.$id.version"} = &Apache::lonnet::usedversion(); 
1.10      albertel 1327: }
                   1328: 
1.219     albertel 1329: sub find_which_previous {
                   1330:     my ($version) = @_;
                   1331:     my $part = $Apache::inputtags::part;
                   1332:     my (@previous_version);
                   1333:     foreach my $resp (@Apache::inputtags::response) {
                   1334: 	my $key = "$version:resource.$part.$resp.submission";
                   1335: 	my $submission = $Apache::lonhomework::history{$key};
                   1336: 	my %previous = &Apache::response::check_for_previous($submission,
                   1337: 							     $part,$resp,
                   1338: 							     $version);
                   1339: 	push(@previous_version,$previous{'version'});
                   1340:     }
                   1341:     return &previous_match(\@previous_version,
                   1342: 			   scalar(@Apache::inputtags::response));
                   1343: }
                   1344: 
                   1345: sub previous_match {
                   1346:     my ($previous_array,$count) = @_;
                   1347:     my $match = 0;
                   1348:     my @matches;
                   1349:     foreach my $versionar (@$previous_array) {
                   1350: 	foreach my $version (@$versionar) {
                   1351: 	    $matches[$version]++;
                   1352: 	}
                   1353:     }
                   1354:     my $which=0;
                   1355:     foreach my $elem (@matches) {
                   1356: 	if ($elem eq $count) {
                   1357: 	    $match=1;
                   1358: 	    last;
                   1359: 	}
                   1360: 	$which++;
                   1361:     }
                   1362:     return ($match,$which);
                   1363: }
                   1364: 
1.9       albertel 1365: sub grade {
1.135     albertel 1366:     my ($target) = @_;
                   1367:     my $id = $Apache::inputtags::part;
                   1368:     my $response='';
1.165     albertel 1369:     if ( defined $env{'form.submitted'}) {
1.136     albertel 1370: 	my (@awards,@msgs);
1.135     albertel 1371: 	foreach $response (@Apache::inputtags::response) {
                   1372: 	    &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
                   1373: 	    my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
                   1374: 	    &Apache::lonxml::debug("keeping $value from $response for $id");
                   1375: 	    push (@awards,$value);
1.136     albertel 1376: 	    $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
                   1377: 	    &Apache::lonxml::debug("got message $value from $response for $id");
                   1378: 	    push (@msgs,$value);
1.135     albertel 1379: 	}
1.232     albertel 1380: 	my ($finalaward,$msg) = 
                   1381: 	    &finalizeawards(\@awards,\@msgs,undef,undef,
                   1382: 			    $Apache::lonhomework::scantronmode);
1.135     albertel 1383: 	my $previously_used;
                   1384: 	if ( $#Apache::inputtags::previous eq $#awards ) {
1.219     albertel 1385: 	    my ($match) =
                   1386: 		&previous_match(\@Apache::inputtags::previous_version,
                   1387: 				scalar(@Apache::inputtags::response));
1.244     raeburn  1388: 
1.135     albertel 1389: 	    if ($match) {
                   1390: 		$previously_used = 'PREVIOUSLY_LAST';
                   1391: 		foreach my $value (@Apache::inputtags::previous) {
                   1392: 		    if ($value eq 'PREVIOUSLY_USED' ) {
                   1393: 			$previously_used = $value;
                   1394: 			last;
                   1395: 		    }
1.75      albertel 1396: 		}
                   1397: 	    }
1.43      albertel 1398: 	}
1.136     albertel 1399: 	&Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
                   1400: 	&setgradedata($finalaward,$msg,$id,$previously_used);
1.43      albertel 1401:     }
1.135     albertel 1402:     return '';
1.1       albertel 1403: }
                   1404: 
1.217     albertel 1405: sub get_grade_messages {
1.282     www      1406:     my ($id,$prefix,$target,$status,$nocorrect) = @_;
                   1407: # nocorrect suppresses "Computer's answer now shown above"
1.217     albertel 1408:     my ($message,$latemessage,$trystr,$previousmsg);
                   1409:     my $showbutton = 1;
                   1410: 
                   1411:     my $award = $Apache::lonhomework::history{"$prefix.award"};
                   1412:     my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
                   1413:     my $solved = $Apache::lonhomework::history{"$prefix.solved"};
                   1414:     my $previous = $Apache::lonhomework::history{"$prefix.previous"};
                   1415:     my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
                   1416:     &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
                   1417:     if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
                   1418: 	&Apache::lonxml::debug('Getting message');
1.221     albertel 1419: 	($showbutton,my $css_class,$message,$previousmsg) =
1.217     albertel 1420: 	    &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1.282     www      1421: 			  $target,(($status eq 'CAN_ANSWER') || $nocorrect));
1.217     albertel 1422: 	if ($target eq 'tex') {
                   1423: 	    $message='\vskip 2 mm '.$message.' ';
                   1424: 	} else {
1.221     albertel 1425: 	    $message="<td class=\"$css_class\">$message</td>";
1.217     albertel 1426: 	    if ($previousmsg) {
1.221     albertel 1427: 		$previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1.217     albertel 1428: 	    }
                   1429: 	}
                   1430:     }
                   1431:     my $tries = $Apache::lonhomework::history{"$prefix.tries"};
                   1432:     my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
                   1433:     &Apache::lonxml::debug("got maxtries of :$maxtries:");
                   1434:     #if tries are set to negative turn off the Tries/Button and messages
                   1435:     if (defined($maxtries) && $maxtries < 0) { return ''; }
                   1436:     if ( $tries eq '' ) { $tries = '0'; }
                   1437:     if ( $maxtries eq '' ) { $maxtries = '2'; } 
                   1438:     if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
1.292     christia 1439:     my $tries_text= &get_tries_text();
1.217     albertel 1440:     if ($showbutton) {
                   1441: 	if ($target eq 'tex') {
                   1442: 	    if ($env{'request.state'} ne "construct"
                   1443: 		&& $Apache::lonhomework::type ne 'exam'
                   1444: 		&& $env{'form.suppress_tries'} ne 'yes') {
1.292     christia 1445: 		$trystr ='{\vskip 1 mm \small '
                   1446:                         .&mt('[_1]'.$tries_text.'[_2] [_3]'
                   1447: 				,'\textit{','}',$tries.'/'.$maxtries ) 
                   1448:                         .'} \vskip 2 mm';
1.217     albertel 1449: 	    } else {
                   1450: 		$trystr = '\vskip 0 mm ';
                   1451: 	    }
                   1452: 	} else {
1.292     christia 1453: 	    my $trial =$tries;
1.217     albertel 1454: 	    if ($Apache::lonhomework::parsing_a_task) {
                   1455: 	    } elsif($env{'request.state'} ne 'construct') {
1.292     christia 1456: 		$trial.="/".&Apache::lonhtmlcommon::direct_parm_link($maxtries,$env{'request.symb'},'maxtries',$id,$target);
1.217     albertel 1457: 	    } else {
                   1458: 		if (defined($Apache::inputtags::params{'maxtries'})) {
1.292     christia 1459: 		    $trial.="/".$Apache::inputtags::params{'maxtries'};
1.217     albertel 1460: 		}
                   1461: 	    }
1.292     christia 1462: 	    $trystr = '<td><span class="LC_nobreak">'.&mt($tries_text.' [_1]',$trial).'</span.</td>';
1.217     albertel 1463: 	}
                   1464:     }
1.221     albertel 1465: 
1.217     albertel 1466:     if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
                   1467: 	#last submissions was after due date
                   1468: 	$latemessage=&mt(' The last submission was after the Due Date ');;
                   1469: 	if ($target eq 'web') {
1.221     albertel 1470: 	    $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1.217     albertel 1471: 	}
                   1472:     }
                   1473:     return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
                   1474: }
                   1475: 
1.11      albertel 1476: sub gradestatus {
1.223     albertel 1477:     my ($id,$target,$no_previous) = @_;
1.135     albertel 1478:     my $showbutton = 1;
                   1479:     my $message = '';
                   1480:     my $latemessage = '';
                   1481:     my $trystr='';
                   1482:     my $button='';
                   1483:     my $previousmsg='';
                   1484: 
                   1485:     my $status = $Apache::inputtags::status['-1'];
                   1486:     &Apache::lonxml::debug("gradestatus has :$status:");
1.183     albertel 1487:     if ( $status ne 'CLOSED' 
                   1488: 	 && $status ne 'UNAVAILABLE' 
                   1489: 	 && $status ne 'INVALID_ACCESS' 
                   1490: 	 && $status ne 'NEEDS_CHECKIN' 
                   1491: 	 && $status ne 'NOT_IN_A_SLOT') {  
1.217     albertel 1492: 
                   1493: 	($previousmsg,$latemessage,$message,$trystr) =
                   1494: 	    &get_grade_messages($id,"resource.$id",$target,$status,
                   1495: 				$showbutton);
                   1496: 	if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
                   1497: 	    $showbutton = 0;
1.164     albertel 1498: 	}
1.218     albertel 1499: 	if ( $status eq 'SHOW_ANSWER') {
                   1500: 	    undef($previousmsg);
                   1501: 	}
1.135     albertel 1502: 	if ( $showbutton ) { 
                   1503: 	    if ($target ne 'tex') {
1.230     albertel 1504: 		$button = 
1.262     www      1505:             '<input onmouseup="javascript:setSubmittedPart(\''.$id.'\');this.form.action+=\'#'.&escape($id).'\';"
1.260     droeschl 1506:                     type="submit" name="submit_'.$id.'"
                   1507:                     value="'.&mt('Submit Answer').'" />';
1.135     albertel 1508: 	    }
                   1509: 	}
1.217     albertel 1510: 
1.135     albertel 1511:     }
                   1512:     my $output= $previousmsg.$latemessage.$message.$trystr;
                   1513:     if ($output =~ /^\s*$/) {
                   1514: 	return $button;
1.63      sakharuk 1515:     } else {
1.135     albertel 1516: 	if ($target eq 'tex') {
                   1517: 	    return $button.' \vskip 0 mm '.$output.' ';
                   1518: 	} else {
1.223     albertel 1519: 	    $output =
                   1520: 		'<table><tr><td>'.$button.'</td>'.$output;
                   1521: 	    if (!$no_previous) {
                   1522: 		$output.='<td>'.&previous_tries($id,$target).'</td>';
                   1523: 	    }
                   1524: 	    $output.= '</tr></table>';
                   1525: 	    return $output;
1.135     albertel 1526: 	}
1.63      sakharuk 1527:     }
1.11      albertel 1528: }
1.217     albertel 1529: 
                   1530: sub previous_tries {
                   1531:     my ($id,$target) = @_;
                   1532:     my $output;
                   1533:     my $status = $Apache::inputtags::status['-1'];
1.219     albertel 1534: 
                   1535:     my $count;
                   1536:     my %count_lookup;
1.274     raeburn  1537:     my $lastrndseed;
1.219     albertel 1538: 
1.217     albertel 1539:     foreach my $i (1..$Apache::lonhomework::history{'version'}) {
                   1540: 	my $prefix = $i.":resource.$id";
1.263     raeburn  1541:         my $is_anon; 
                   1542:         if (defined($env{'form.grade_symb'})) {
                   1543:             if (($Apache::lonhomework::history{"$prefix.type"} eq 'anonsurvey') || 
                   1544:                 ($Apache::lonhomework::history{"$prefix.type"} eq 'anonsurveycred')) {
                   1545:                 $is_anon = 1;
                   1546:             }
                   1547:         }
1.217     albertel 1548: 	next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1.219     albertel 1549: 	$count++;
                   1550: 	$count_lookup{$i} = $count;
1.274     raeburn  1551:         my $curr_rndseed = $Apache::lonhomework::history{"$prefix.rndseed"};
1.217     albertel 1552: 	my ($previousmsg,$latemessage,$message,$trystr);
                   1553: 
                   1554: 	($previousmsg,$latemessage,$message,$trystr) =
                   1555: 	    &get_grade_messages($id,"$prefix",$target,$status);
                   1556: 
1.219     albertel 1557: 	if ($previousmsg ne '') {
                   1558: 	    my ($match,$which) = &find_which_previous($i);
                   1559: 	    $message=$previousmsg;
                   1560: 	    my $previous = $count_lookup{$which};
1.226     albertel 1561: 	    $message =~ s{(</td>)}{ as submission \# $previous $1};
1.221     albertel 1562: 	} elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1.233     albertel 1563: 	    if (!(&Apache::lonhomework::hide_problem_status()
1.225     albertel 1564: 		  && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
                   1565: 		&& $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
                   1566: 		) {
                   1567: 		
1.238     bisitz   1568:                 my $txt_correct = &mt('Correct');
1.279     raeburn  1569:                 my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
                   1570:                 if ($awarded < 1 && $awarded > 0) {
1.280     raeburn  1571:                     $txt_correct=&mt('Partially Correct');
1.279     raeburn  1572:                 } elsif ($awarded < 1) {
                   1573:                     if ($awarded eq '') {
                   1574:                         $txt_correct='';
                   1575:                     } else {
                   1576:                         $txt_correct=&mt('Incorrect');
                   1577:                     }
                   1578:                 }
1.221     albertel 1579: 		$message =~ s{(<td.*?>)(.*?)(</td>)}
1.238     bisitz   1580:                              {$1 <strong>$txt_correct</strong>. $3}s;
1.221     albertel 1581: 	    }
1.238     bisitz   1582:             my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
1.274     raeburn  1583:             if ($curr_rndseed || $lastrndseed) {
                   1584:                 if ($curr_rndseed ne $lastrndseed) {
                   1585:                     $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>';
                   1586:                 }
                   1587:             } 
1.221     albertel 1588: 	    $message =~ s{(</td>)}{ $trystr $1};
1.219     albertel 1589: 	}
1.221     albertel 1590: 	my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
                   1591: 	$message =~ s{(<td.*?>)}{<td>};
                   1592: 	
1.219     albertel 1593: 
1.221     albertel 1594: 	$output.='<tr class="'.$class.'">';
1.223     albertel 1595: 	$output.='<td align="center">'.$count.'</td>';
1.219     albertel 1596: 	$output.=$message;
1.217     albertel 1597: 
                   1598: 	foreach my $resid (@Apache::inputtags::response) {
                   1599: 	    my $prefix = $prefix.".$resid";
                   1600: 	    if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
                   1601: 		my $submission =
                   1602: 		    $Apache::inputtags::submission_display{"$prefix.submission"};
                   1603: 		if (!defined($submission)) {
                   1604: 		    $submission = 
                   1605: 			$Apache::lonhomework::history{"$prefix.submission"};
                   1606: 		}
1.263     raeburn  1607:                 if ($is_anon) {
                   1608:                     $output.='<td>'.&mt('(only shown to submitter)').'</td>';
                   1609:                 } else {
                   1610: 		    $output.='<td>'.$submission.'</td>';
                   1611:                 }
1.217     albertel 1612: 	    } else {
                   1613: 		$output.='<td></td>';
                   1614: 	    }
                   1615: 	}
1.221     albertel 1616: 	$output.=&Apache::loncommon::end_data_table_row()."\n";
1.274     raeburn  1617:         $lastrndseed = $curr_rndseed;
1.217     albertel 1618:     }
                   1619:     return if ($output eq '');
1.219     albertel 1620:     my $headers = 
1.222     albertel 1621: 	'<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1.219     albertel 1622: 	'</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
                   1623: 	&mt('Submitted Answer').'</th>';
                   1624:     $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1.217     albertel 1625:     #return $output;
1.229     albertel 1626:     $output = &Apache::loncommon::js_ready($output); 
1.226     albertel 1627:     $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
                   1628: 
1.217     albertel 1629:     my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1.263     raeburn  1630:     my $tries_text = &get_tries_text('link');
1.217     albertel 1631:     my $start_page =
1.263     raeburn  1632: 	&Apache::loncommon::start_page($tries_text, undef,
1.229     albertel 1633: 				       {'only_body'      => 1,
                   1634: 					'bgcolor'        => '#FFFFFF',
                   1635: 					'js_ready'       => 1,
                   1636: 				        'inherit_jsmath' => 1, });
1.217     albertel 1637:     my $end_page =
                   1638: 	&Apache::loncommon::end_page({'js_ready' => 1,});
1.231     albertel 1639:     my $prefix = $env{'form.request.prefix'};
                   1640:     $prefix =~ tr{.}{_};
                   1641:     my $function_name = "LONCAPA_previous_tries_".$prefix.
1.234     albertel 1642: 	$Apache::lonxml::curdepth.'_'.$env{'form.counter'};
1.217     albertel 1643:     my $result ="<script type=\"text/javascript\">
                   1644: // <![CDATA[
1.231     albertel 1645:     function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1.217     albertel 1646: // ]]>
1.263     raeburn  1647: </script><a href=\"javascript:$function_name();void(0);\">".&mt($tries_text)."</a><br />";
1.217     albertel 1648:     #use Data::Dumper;
                   1649:     #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
                   1650:     return $result;
                   1651: }
                   1652: 
1.263     raeburn  1653: sub get_tries_text {
                   1654:     my ($context) = @_;
                   1655:     my $tries_text;
                   1656:     if ($context eq 'link') {
                   1657:         $tries_text = 'Previous Tries';
                   1658:     } else {
                   1659:         $tries_text = 'Tries';
                   1660:     }
                   1661:     if ( $Apache::lonhomework::type eq 'survey' ||
                   1662:          $Apache::lonhomework::type eq 'surveycred' ||
                   1663:          $Apache::lonhomework::type eq 'anonsurvey' ||
                   1664:          $Apache::lonhomework::type eq 'anonsurveycred' ||
                   1665:          $Apache::lonhomework::parsing_a_task) {
                   1666:         if ($context eq 'link') {
                   1667:             $tries_text = 'Previous Submissions';
                   1668:         } else {
                   1669:             $tries_text = 'Submissions';
                   1670:         }
                   1671:     }
                   1672:     return $tries_text;
                   1673: }
                   1674: 
1.1       albertel 1675: 1;
                   1676: __END__
1.249     jms      1677: 
                   1678: =pod
                   1679: 
                   1680: =back
                   1681: 
                   1682: =cut
1.43      albertel 1683:  

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>