1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.102 2003/05/23 07:04:44 albertel Exp $
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/
27: #
28: # 2/19 Guy
29:
30: package Apache::inputtags;
31: use HTML::Entities();
32: use strict;
33: use Apache::loncommon;
34:
35: BEGIN {
36: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
37: }
38:
39:
40: sub initialize_inputtags {
41: # list of current input ids
42: @Apache::inputtags::input=();
43: # list of all input ids seen in this problem
44: @Apache::inputtags::inputlist=();
45: # list of all current response ids
46: @Apache::inputtags::response=();
47: # list of all response ids seen in this problem
48: @Apache::inputtags::responselist=();
49: # list of whether or not a specific response was previously used
50: @Apache::inputtags::previous=();
51: # submission it was used in
52: @Apache::inputtags::previous_version=();
53: # id of current part, 0 means that no part is current (inside <problem> only
54: $Apache::inputtags::part='';
55: # list of problem date statuses, the first element is for <problem>
56: # if there is a second element it is for the current <part>
57: @Apache::inputtags::status=();
58: # hash of defined params for the current response
59: %Apache::inputtags::params=();
60: # list of all ids, for <import>, these get join()ed and prepended
61: @Apache::inputtags::import=();
62: }
63:
64: sub start_input {
65: my ($parstack,$safeeval)=@_;
66: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
67: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
68: push (@Apache::inputtags::input,$id);
69: push (@Apache::inputtags::inputlist,$id);
70: return $id;
71: }
72:
73: sub end_input {
74: pop @Apache::inputtags::input;
75: return '';
76: }
77:
78: sub start_textfield {
79: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
80: my $result = "";
81: my $id = &start_input($parstack,$safeeval);
82: my $resid=$Apache::inputtags::response[-1];
83: if ($target eq 'web') {
84: $Apache::lonxml::evaluate--;
85: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
86: my $partid=$Apache::inputtags::part;
87: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});
88: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
89: if ( $cols eq '') { $cols = 80; }
90: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
91: if ( $rows eq '') { $rows = 10; }
92: $result= '<textarea name="HWVAL_'.$resid.'" '.
93: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
94: if ($oldresponse ne '') {
95: #get rid of any startup text if the user has already responded
96: &Apache::lonxml::get_all_text("/textfield",$parser);
97: }
98: } else {
99: #right or wrong don't show it
100: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
101: $result='';
102: #get rid of any startup text
103: &Apache::lonxml::get_all_text("/textfield",$parser);
104: }
105: } elsif ($target eq 'grade') {
106: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
107: if ($seedtext eq $ENV{'form.HWVAL_'.$resid}) {
108: # if the seed text is still there it wasn't a real submission
109: $ENV{'form.HWVAL_'.$resid}='';
110: }
111: } elsif ($target eq 'edit') {
112: $result.=&Apache::edit::tag_start($target,$token);
113: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
114: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
115: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
116: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
117: } elsif ($target eq 'modified') {
118: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
119: $safeeval,'rows','cols');
120: if ($constructtag) {
121: $result = &Apache::edit::rebuild_tag($token);
122: } else {
123: $result=$token->[4];
124: }
125: $result.=&Apache::edit::modifiedfield();
126: } elsif ($target eq 'tex') {
127: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
128: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
129: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
130: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
131: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
132: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
133: } else {
134: my $TeXwidth=$width_of_box/80;
135: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
136: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
137: $result.='}}}\vskip 2 mm ';
138: }
139: }
140: return $result;
141: }
142:
143: sub end_textfield {
144: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
145: my $result;
146: if ($target eq 'web') {
147: $Apache::lonxml::evaluate++;
148: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
149: return "</textarea>";
150: }
151: } elsif ($target eq 'edit') {
152: $result=&Apache::edit::end_table();
153: }
154: &end_input;
155: return $result;
156: }
157:
158: sub start_textline {
159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
160: my $result = "";
161: if ($target eq 'web') {
162: $Apache::lonxml::evaluate--;
163: my $partid=$Apache::inputtags::part;
164: my $id=$Apache::inputtags::response[-1];
165: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
166: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
167: my $maxlength;
168: if ($size eq '') { $size=20; } else {
169: if ($size < 20) { $maxlength=$size; }
170: }
171: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
172: if ($Apache::lonhomework::type ne 'exam') {
173: $result= '<input type="text" name="HWVAL_'.$id.'" value="'.
174: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
175: }
176: } else {
177: #right or wrong don't show what was last typed in.
178: #$result='<i>'.$oldresponse.'</i>';
179: $result='';
180: }
181: } elsif ($target eq 'edit') {
182: $result=&Apache::edit::tag_start($target,$token);
183: $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
184: $result.=&Apache::edit::end_table;
185: } elsif ($target eq 'modified') {
186: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
187: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
188: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
189: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
190: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
191: $result='\framebox['.$size.'][s]{\tiny\strut}';
192: }
193: return $result;
194: }
195:
196: sub end_textline {
197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
198: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
199: elsif ($target eq 'edit') { return ('','no'); }
200: return "";
201: }
202:
203: sub start_hiddenline {
204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
205: my $result = "";
206: if ($target eq 'web') {
207: $Apache::lonxml::evaluate--;
208: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
209: my $partid=$Apache::inputtags::part;
210: my $id=$Apache::inputtags::response[-1];
211: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
212: if ($Apache::lonhomework::type ne 'exam') {
213: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
214: $oldresponse.'" />';
215: }
216: }
217: } elsif ($target eq 'edit') {
218: $result=&Apache::edit::tag_start($target,$token);
219: $result.=&Apache::edit::end_table;
220: }
221: return $result;
222: }
223:
224: sub end_hiddenline {
225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
226: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
227: elsif ($target eq 'edit') { return ('','no'); }
228: return "";
229: }
230:
231: sub finalizeawards {
232: my $result='';
233: my $award;
234: if ($#_ == '-1') { $result = "NO_RESPONSE"; }
235: if ($result eq '' ) {
236: my $blankcount;
237: foreach $award (@_) {
238: if ($award eq '') {
239: $result='MISSING_ANSWER';
240: $blankcount++;
241: }
242: }
243: if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
244: }
245: if ($result eq '' ) {
246: foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
247: }
248: if ($result eq '' ) {
249: foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
250: }
251: if ($result eq '' ) {
252: foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
253: }
254: if ($result eq '' ) {
255: foreach $award (@_) { if ($award eq 'TOO_LONG') {$result='TOO_LONG'; last;}}
256: }
257: if ($result eq '' ) {
258: foreach $award (@_) {
259: if ($award eq 'UNIT_FAIL' ||
260: $award eq 'NO_UNIT' ||
261: $award eq 'UNIT_NOTNEEDED') {
262: $result=$award; last;
263: }
264: }
265: }
266: if ($result eq '' ) {
267: foreach $award (@_) {
268: if ($award eq 'WANTED_NUMERIC' ||
269: $award eq 'BAD_FORMULA') {$result=$award; last;}
270: }
271: }
272: if ($result eq '' ) {
273: foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
274: }
275: if ($result eq '' ) {
276: foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
277: }
278: if ($result eq '' ) {
279: foreach $award (@_) { if ($award eq 'MISORDERED_RANK') {$result=$award; last;} }
280: }
281: if ($result eq '' ) {
282: foreach $award (@_) { if ($award eq 'INVALID_FILETYPE') {$result=$award; last;} }
283: }
284: if ($result eq '' ) {
285: foreach $award (@_) { if ($award eq 'DRAFT') {$result=$award; last;} }
286: }
287: if ($result eq '' ) {
288: foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
289: }
290: if ($result eq '' ) {
291: foreach $award (@_) { if ($award eq 'ASSIGNED_SCORE') {$result=$award; last;} }
292: }
293: if ($result eq '' ) {
294: foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
295: }
296: if ($result eq '' ) { $result='EXACT_ANS'; }
297: return $result
298: }
299:
300: sub decideoutput {
301: my ($award,$solved,$previous,$target)=@_;
302: my $message='';
303: my $button=0;
304: my $previousmsg;
305:
306: if ($previous) { $previousmsg='You have entered that answer before'; }
307:
308: if ($solved =~ /^correct/) {
309: if ($award eq 'ASSIGNED_SCORE') {
310: $message = "A score has been assigned.";
311: } else {
312: if ($target eq 'tex') {
313: $message = '\textbf{You are correct}.';
314: } else {
315: $message = "<b>You are correct.</b>";
316: }
317: $message=' Your receipt is '.&Apache::lonnet::receipt;
318: }
319: $button=0;
320: $previousmsg='';
321: } elsif ($solved =~ /^excused/) {
322: $message = "<b>You are excused from the problem.</b>";
323: $button=0;
324: $previousmsg='';
325: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
326: if ($solved =~ /^incorrect/ || $solved eq '') {
327: $message = "Incorrect";
328: $button=1;
329: } else {
330: $message = "<b>You are correct.</b> Your receipt is ".
331: &Apache::lonnet::receipt;
332: $button=0;
333: $previousmsg='';
334: }
335: } elsif ($award eq 'NO_RESPONSE') {
336: $message = '';
337: $button=1;
338: } elsif ($award eq 'MISSING_ANSWER') {
339: $message = 'Some parts were not submitted';
340: $button = 1;
341: } elsif ($award eq 'ERROR') {
342: $message = 'An error occured while trying to grade answer.';
343: $button = 1;
344: } elsif ($award eq 'TOO_LONG') {
345: $message = "The submitted answer was too long.";
346: $button=1;
347: } elsif ($award eq 'WANTED_NUMERIC') {
348: $message = "This question expects a numeric answer";
349: $button=1;
350: } elsif ($award eq 'MISORDERED_RANK') {
351: $message = 'You have provided an invalid ranking, please refer to '.
352: &Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
353: $button=1;
354: } elsif ($award eq 'INVALID_FILETYPE') {
355: $message = 'The filetype extension of the file you uploaded is not allowed.';
356: $button=1;
357: } elsif ($award eq 'SIG_FAIL') {
358: $message = "Please adjust significant figures.";# you provided %s significant figures";
359: $button=1;
360: } elsif ($award eq 'UNIT_FAIL') {
361: $message = "Units incorrect. ".
362: &Apache::loncommon::help_open_topic('Physical_Units'); #Computer reads units as %s";
363: $button=1;
364: } elsif ($award eq 'UNIT_NOTNEEDED') {
365: $message = "Only a number required.";# Computer reads units of %s";
366: $button=1;
367: } elsif ($award eq 'NO_UNIT') {
368: $message = "Units required".
369: &Apache::loncommon::help_open_topic('Physical_Units');
370: $button=1;
371: } elsif ($award eq 'BAD_FORMULA') {
372: $message = "Unable to understand formula";
373: $button=1;
374: } elsif ($award eq 'INCORRECT') {
375: $message = "Incorrect";
376: $button=1;
377: } elsif ($award eq 'SUBMITTED') {
378: $message = "Your submission has been recorded.";
379: $button=1;
380: } elsif ($award eq 'DRAFT') {
381: $message = "A draft copy has been saved.";
382: $button=1;
383: } elsif ($award eq 'ASSIGNED_SCORE') {
384: $message = "A score has been assigned.";
385: $button=0;
386: } else {
387: $message = "Unknown message: $award";
388: $button=1;
389: }
390: if (lc($Apache::lonhomework::problemstatus) eq 'no') {
391: $message = "Answer Submitted";
392: $button=1;
393: }
394: return ($button,$message,$previousmsg);
395: }
396:
397: sub removealldata {
398: my ($id)=@_;
399: foreach my $key (keys(%Apache::lonhomework::results)) {
400: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
401: &Apache::lonxml::debug("Removing $key");
402: delete($Apache::lonhomework::results{$key});
403: }
404: }
405: }
406:
407: sub setgradedata {
408: my ($award,$id,$previously_used) = @_;
409: # if the student already has it correct, don't modify the status
410: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
411: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
412: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
413: return '';
414: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
415: /^correct/ || $Apache::lonhomework::scantronmode ||
416: lc($Apache::lonhomework::problemstatus) eq 'no') {
417: #handle assignment of tries and solved status
418: my $solvemsg;
419: if ($Apache::lonhomework::scantronmode) {
420: $solvemsg='correct_by_scantron';
421: } else {
422: $solvemsg='correct_by_student';
423: }
424: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
425: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
426: }
427: if ( $award eq 'ASSIGNED_SCORE') {
428: $Apache::lonhomework::results{"resource.$id.tries"} =
429: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
430: $Apache::lonhomework::results{"resource.$id.solved"} =
431: $solvemsg;
432: my $numawards=scalar(@Apache::inputtags::responselist);
433: &Apache::lonxml::debug("Whaaa!");
434: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
435: foreach my $res (@Apache::inputtags::responselist) {
436: $Apache::lonhomework::results{"resource.$id.awarded"}+=
437: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
438: }
439: if ($numawards > 0) {
440: $Apache::lonhomework::results{"resource.$id.awarded"}/=
441: $numawards;
442: }
443: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
444: $Apache::lonhomework::results{"resource.$id.tries"} =
445: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
446: $Apache::lonhomework::results{"resource.$id.solved"} =
447: $solvemsg;
448: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
449: } elsif ( $award eq 'INCORRECT' ) {
450: $Apache::lonhomework::results{"resource.$id.tries"} =
451: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
452: $Apache::lonhomework::results{"resource.$id.solved"} =
453: 'incorrect_attempted'
454: } elsif ( $award eq 'SUBMITTED' ) {
455: $Apache::lonhomework::results{"resource.$id.tries"} =
456: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
457: $Apache::lonhomework::results{"resource.$id.solved"} =
458: 'ungraded_attempted';
459: } elsif ( $award eq 'DRAFT' ) {
460: $Apache::lonhomework::results{"resource.$id.solved"} = '';
461: } elsif ( $award eq 'NO_RESPONSE' ) {
462: #no real response so delete any data that got stored
463: &removealldata($id);
464: return '';
465: } else {
466: $Apache::lonhomework::results{"resource.$id.solved"} =
467: 'incorrect_attempted';
468: if (lc($Apache::lonhomework::problemstatus) eq 'no') {
469: $Apache::lonhomework::results{"resource.$id.tries"} =
470: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
471: }
472: }
473:
474: # check if this was a previous submission if it was delete the
475: # unneeded data and update the previously_used attribute
476: if ( $previously_used eq 'PREVIOUSLY_USED') {
477: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
478: delete($Apache::lonhomework::results{"resource.$id.tries"});
479: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
480: }
481: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
482: #delete all data as they student didn't do anything, but save
483: #the list of collaborators.
484: &removealldata($id);
485: #and since they didn't do anything we were never here
486: return '';
487: } else {
488: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
489: }
490: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
491: /^correct/ ) {
492: #delete all data as they student already has it correct
493: &removealldata($id);
494: #and since they didn't do anything we were never here
495: return '';
496: }
497: $Apache::lonhomework::results{"resource.$id.award"} = $award;
498: }
499:
500: sub grade {
501: my ($target) = @_;
502: my $id = $Apache::inputtags::part;
503: my $response='';
504: if ( defined $ENV{'form.submitted'}) {
505: my @awards = ();
506: foreach $response (@Apache::inputtags::responselist) {
507: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
508: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
509: &Apache::lonxml::debug("keeping $value from $response for $id");
510: push (@awards,$value);
511: }
512: my $finalaward = &finalizeawards(@awards);
513: my $previously_used;
514: if ( $#Apache::inputtags::previous eq $#awards ) {
515: my $match=0;
516: my @matches;
517: foreach my $versionar (@Apache::inputtags::previous_version) {
518: foreach my $version (@$versionar) {
519: $matches[$version]++;
520: }
521: }
522: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
523: if ($match) {
524: $previously_used = 'PREVIOUSLY_LAST';
525: foreach my $value (@Apache::inputtags::previous) {
526: if ($value eq 'PREVIOUSLY_USED' ) {
527: $previously_used = $value;
528: last;
529: }
530: }
531: }
532: }
533: &Apache::lonxml::debug("final award $finalaward, $previously_used");
534: &setgradedata($finalaward,$id,$previously_used);
535: }
536: return '';
537: }
538:
539: sub gradestatus {
540: my ($id,$target) = @_;
541: my $showbutton = 1;
542: my $message = '';
543: my $latemessage = '';
544: my $trystr='';
545: my $button='';
546: my $previousmsg='';
547:
548: my $status = $Apache::inputtags::status['-1'];
549: &Apache::lonxml::debug("gradestatus has :$status:");
550: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE') {
551: my $award = $Apache::lonhomework::history{"resource.$id.award"};
552: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
553: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
554: &Apache::lonxml::debug("Found Award |$award|$solved|");
555: if ( $award ne '' ) {
556: &Apache::lonxml::debug('Getting message');
557: ($showbutton,$message,$previousmsg) =
558: &decideoutput($award,$solved,$previous,$target);
559: if ($target eq 'tex') {
560: $message=' '.$message.' ';
561: } else {
562: $message="<td bgcolor=\"#aaffaa\">$message</td>";
563: if ($previousmsg) {
564: $previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";
565: }
566: }
567: }
568: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
569: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
570: &Apache::lonxml::debug("got maxtries of :$maxtries:");
571: if ( $tries eq '' ) { $tries = '0'; }
572: if ( $maxtries eq '' ) { $maxtries = '2'; }
573: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
574: if ( $showbutton ) {
575: if ($target eq 'tex') {
576: if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam') {
577: $trystr = ' {\vskip 1 mm \small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
578: } else {
579: $trystr = '\vskip 0 mm ';
580: }
581: } else {
582: $trystr = "<td>Tries $tries/$maxtries</td>";
583: }
584: }
585: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
586: if ( $showbutton ) {
587: if ($target ne 'tex') {
588: $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
589: }
590: }
591: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
592: #last submissions was after due date
593: if ($target eq 'tex') {
594: $latemessage=' The last submission was after the Due Date ';
595: } else {
596: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
597: }
598: }
599: }
600: my $output= $previousmsg.$latemessage.$message.$trystr;
601: if ($output =~ /^\s*$/) {
602: return $button;
603: } else {
604: if ($target eq 'tex') {
605: return $button.' \vskip 0 mm '.$output.' ';
606: } else {
607: return $button.'<table><tr>'.$output.'</tr></table>';
608: }
609: }
610: }
611: 1;
612: __END__
613:
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