1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Homework handler
3: #
4: # $Id: lonhomework.pm,v 1.370 2018/01/31 15:28:28 raeburn 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:
29: package Apache::lonhomework;
30: use strict;
31: use Apache::style();
32: use Apache::lonxml();
33: use Apache::lonnet;
34: use Apache::lonplot();
35: use Apache::inputtags();
36: use Apache::structuretags();
37: use Apache::randomlabel();
38: use Apache::response();
39: use Apache::hint();
40: use Apache::outputtags();
41: use Apache::caparesponse();
42: use Apache::radiobuttonresponse();
43: use Apache::optionresponse();
44: use Apache::imageresponse();
45: use Apache::essayresponse();
46: use Apache::externalresponse();
47: use Apache::rankresponse();
48: use Apache::matchresponse();
49: use Apache::chemresponse();
50: use Apache::functionplotresponse();
51: use Apache::drawimage();
52: use Apache::loncapamath();
53: use Apache::Constants qw(:common);
54: use Apache::loncommon();
55: use Apache::lonparmset();
56: use Apache::lonlocal;
57: use Time::HiRes qw( gettimeofday tv_interval );
58: use HTML::Entities();
59: use File::Copy();
60:
61: # FIXME - improve commenting
62:
63:
64: BEGIN {
65: &Apache::lonxml::register_insert();
66: }
67:
68:
69: =pod
70:
71: =item set_bubble_lines()
72:
73: Called at analysis time to set the bubble lines
74: hash for the problem.. This should be called in the
75: end_problemtype tag in analysis mode.
76:
77: We fetch the hash of part id counters from lonxml
78: and push them into analyze:{part_id.bubble_lines}.
79:
80: =cut
81:
82: sub set_bubble_lines {
83: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
84:
85: foreach my $key (keys(%bubble_counters)) {
86: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
87: $bubble_counters{"$key"};
88: }
89: }
90:
91: #
92: # Decides what targets to render for.
93: # Implicit inputs:
94: # Various session environment variables:
95: # request.state - published - is a /res/ resource
96: # uploaded - is a /uploaded/ resource
97: # contruct - is a /priv/ resource
98: # form.grade_target - a form parameter requesting a specific target
99: sub get_target {
100: &Apache::lonxml::debug("request.state = $env{'request.state'}");
101: if( defined($env{'form.grade_target'})) {
102: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
103: } else {
104: &Apache::lonxml::debug("form.grade_target <undefined>");
105: }
106: if (($env{'request.state'} eq "published") ||
107: ($env{'request.state'} eq "uploaded")) {
108: if ( defined($env{'form.grade_target'} )
109: && ($env{'form.grade_target'} eq 'tex')) {
110: return ($env{'form.grade_target'});
111: } elsif ( defined($env{'form.grade_target'} )
112: && ($Apache::lonhomework::viewgrades eq 'F' )) {
113: return ($env{'form.grade_target'});
114: } elsif ( $env{'form.grade_target'} eq 'webgrade'
115: && ($Apache::lonhomework::queuegrade eq 'F' )) {
116: return ($env{'form.grade_target'});
117: } elsif ($env{'form.grade_target'} eq 'answer') {
118: if ($env{'form.answer_output_mode'} eq 'tex') {
119: return ($env{'form.grade_target'});
120: }
121: }
122: if ($env{'form.webgrade'} &&
123: ($Apache::lonhomework::modifygrades eq 'F'
124: || $Apache::lonhomework::queuegrade eq 'F' )) {
125: return ('grade','webgrade');
126: }
127: if ( defined($env{'form.submitted'}) &&
128: ( !defined($env{'form.newrandomization'}))) {
129: return ('grade', 'web');
130: } else {
131: return ('web');
132: }
133: } elsif ($env{'request.state'} eq "construct") {
134: #
135: # We are in construction space, editing and testing problems
136: #
137: if ( defined($env{'form.grade_target'}) ) {
138: return ($env{'form.grade_target'});
139: }
140: if ( defined($env{'form.preview'})) {
141: if ( defined($env{'form.submitted'})) {
142: #
143: # We are doing a problem preview
144: #
145: return ('grade', 'web');
146: } else {
147: return ('web');
148: }
149: } else {
150: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
151: return ('grade','webgrade','answer');
152: } elsif ($env{'form.problemmode'} eq 'view') {
153: return ('grade','web','answer');
154: } elsif ($env{'form.problemmode'} eq 'saveview') {
155: return ('modified','web','answer');
156: } elsif ($env{'form.problemmode'} eq 'discard') {
157: return ('web','answer');
158: } elsif (($env{'form.problemmode'} eq 'saveedit') ||
159: ($env{'form.problemmode'} eq 'undo')) {
160: return ('modified','no_output_web','edit');
161: } elsif ($env{'form.problemmode'} eq 'edit') {
162: return ('no_output_web','edit');
163: } else {
164: return ('web');
165: }
166: }
167: #
168: # End of Authoring Space
169: #
170: }
171: #
172: # Huh? We are nowhere, so do nothing.
173: #
174: return ();
175: }
176:
177: sub setup_vars {
178: my ($target) = @_;
179: return ';'
180: # return ';$external::target='.$target.';';
181: }
182:
183: sub proctor_checked_in {
184: my ($slot_name,$slot,$type)=@_;
185: my @possible_proctors=split(",",$slot->{'proctor'});
186:
187: return 1 if (!@possible_proctors);
188:
189: my $key;
190: if ($type eq 'Task') {
191: my $version=$Apache::lonhomework::history{'resource.0.version'};
192: $key ="resource.$version.0.checkedin";
193: } elsif (($type eq 'problem') || ($type eq 'tool')) {
194: $key ='resource.0.checkedin';
195: }
196: # backward compatability, used to be username@domain,
197: # now is username:domain
198: my $who = $Apache::lonhomework::history{$key};
199: if ($who !~ /:/) {
200: $who =~ tr/@/:/;
201: }
202: foreach my $possible (@possible_proctors) {
203: if ($who eq $possible
204: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
205: return 1;
206: }
207: }
208: return 0;
209: }
210:
211: sub check_slot_access {
212: my ($id,$type,$symb,$partlist)=@_;
213:
214: # does it pass normal muster
215: my ($status,$datemsg)=&check_access($id,$symb);
216:
217: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
218: if ($useslots ne 'resource' && $useslots ne 'map'
219: && $useslots ne 'map_map') {
220: return ($status,$datemsg);
221: }
222:
223: my $checkin = 'resource.0.checkedin';
224: my $version;
225: if ($type eq 'Task') {
226: $version=$Apache::lonhomework::history{'resource.version'};
227: $checkin = "resource.$version.0.checkedin";
228: }
229: my $checkedin = $Apache::lonhomework::history{$checkin};
230: my ($returned_slot,$slot_name,$checkinslot,$ipused,$blockip,$now,$ip,
231: $consumed_uniq);
232: $now = time;
233: $ip=$ENV{'REMOTE_ADDR'} || $env{'request.host'};
234:
235: if ($checkedin) {
236: $checkinslot = $Apache::lonhomework::history{"$checkin.slot"};
237: my %slot=&Apache::lonnet::get_slot($checkinslot);
238: $consumed_uniq = $slot{'uniqueperiod'};
239: if ($slot{'iptied'}) {
240: $ipused = $Apache::lonhomework::history{"$checkin.ip"};
241: unless (($ip ne '') && ($ipused eq $ip)) {
242: $blockip = $slot{'iptied'};
243: $slot_name = $checkinslot;
244: $returned_slot = \%slot;
245: }
246: }
247: }
248:
249: if ($status eq 'SHOW_ANSWER') {
250: if ($blockip eq 'answer') {
251: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
252: } else {
253: return ($status,$datemsg);
254: }
255: }
256:
257: if ($status eq 'CLOSED' ||
258: $status eq 'INVALID_ACCESS' ||
259: $status eq 'UNAVAILABLE') {
260: return ($status,$datemsg);
261: }
262: if ($env{'request.state'} eq "construct") {
263: return ($status,$datemsg);
264: }
265:
266: if ($type eq 'Task') {
267: if ($checkedin &&
268: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
269: if ($blockip eq 'answer') {
270: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
271: } else {
272: return ('SHOW_ANSWER');
273: }
274: }
275: }
276:
277: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent",$symb);
278: my $available = &Apache::lonnet::EXT("resource.0.available",$symb);
279: my @slots= (split(':',$availablestudent),split(':',$available));
280:
281: # if (!@slots) {
282: # return ($status,$datemsg);
283: # }
284: undef($returned_slot);
285: undef($slot_name);
286: my $slotstatus='NOT_IN_A_SLOT';
287: my $num_usable_slots = 0;
288: if (!$symb) {
289: ($symb) = &Apache::lonnet::whichuser();
290: }
291: foreach my $slot (@slots) {
292: $slot =~ s/(^\s*|\s*$)//g;
293: &Apache::lonxml::debug("getting $slot");
294: my %slot=&Apache::lonnet::get_slot($slot);
295: &Apache::lonhomework::showhash(%slot);
296: next if ($slot{'endtime'} < $now);
297: $num_usable_slots ++;
298: if ($slot{'starttime'} < $now &&
299: $slot{'endtime'} > $now &&
300: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
301: if ($slot{'iptied'}) {
302: if ($env{'request.course.id'}) {
303: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
304: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
305: if ($slot eq $checkinslot) {
306: if ($ip eq $ipused) {
307: &Apache::lonxml::debug("$slot is good");
308: $slotstatus ='NEEDS_CHECKIN';
309: } else {
310: $slotstatus = 'NEED_DIFFERENT_IP';
311: $slot_name = $slot;
312: $returned_slot = \%slot;
313: last;
314: }
315: } elsif ($ip) {
316: my $uniqkey = "$slot\0$symb\0$ip";
317: my %used_ip = &Apache::lonnet::get('slot_uniqueips',[$uniqkey],$cdom,$cnum);
318: if ($used_ip{$uniqkey}) {
319: $slotstatus = 'NEED_DIFFERENT_IP';
320: } else {
321: &Apache::lonxml::debug("$slot is good");
322: $slotstatus ='NEEDS_CHECKIN';
323: }
324: }
325: }
326: } else {
327: &Apache::lonxml::debug("$slot is good");
328: $slotstatus='NEEDS_CHECKIN';
329: }
330: if ($slotstatus eq 'NEEDS_CHECKIN') {
331: $returned_slot=\%slot;
332: $slot_name=$slot;
333: last;
334: }
335: }
336: }
337: if ($slotstatus eq 'NEEDS_CHECKIN' &&
338: &proctor_checked_in($slot_name,$returned_slot,$type)) {
339: &Apache::lonxml::debug("proctor checked in");
340: $slotstatus=$status;
341: }
342:
343: my ($is_correct,$got_grade);
344: if ($type eq 'Task') {
345: my $version=$Apache::lonhomework::history{'resource.0.version'};
346: $got_grade =
347: ($Apache::lonhomework::history{"resource.$version.0.status"}
348: =~ /^(?:pass|fail)$/);
349: $is_correct =
350: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
351: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
352: } elsif (($type eq 'problem') || ($type eq 'tool')) {
353: if ((ref($partlist) eq 'ARRAY') && (@{$partlist} > 0)) {
354: my ($numcorrect,$numgraded) = (0,0);
355: foreach my $part (@{$partlist}) {
356: my $currtries = $Apache::lonhomework::history{"resource.$part.tries"};
357: my $maxtries = &Apache::lonnet::EXT("resource.$part.maxtries",$symb);
358: my $probstatus = &Apache::structuretags::get_problem_status($part);
359: my $earlyout;
360: unless (($probstatus eq 'no') ||
361: ($probstatus eq 'no_feedback_ever')) {
362: if ($Apache::lonhomework::history{"resource.$part.solved"} =~/^correct_/) {
363: $numcorrect ++;
364: } else {
365: $earlyout = 1;
366: }
367: }
368: if (($currtries == $maxtries) || ($is_correct)) {
369: $earlyout = 1;
370: } else {
371: $numgraded ++;
372: }
373: last if ($earlyout);
374: }
375: my $numparts = scalar(@{$partlist});
376: if ($numparts == $numcorrect) {
377: $is_correct = 1;
378: }
379: if ($numparts == $numgraded) {
380: $got_grade = 1;
381: }
382: } else {
383: my $currtries = $Apache::lonhomework::history{"resource.0.tries"};
384: my $maxtries = &Apache::lonnet::EXT("resource.0.maxtries",$symb);
385: my $probstatus = &Apache::structuretags::get_problem_status('0');
386: unless (($probstatus eq 'no') ||
387: ($probstatus eq 'no_feedback_ever')) {
388: $is_correct =
389: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
390: }
391: unless (($currtries == $maxtries) || ($is_correct)) {
392: $got_grade = 1;
393: }
394: }
395: }
396:
397: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
398:
399: # no slot is currently open, and has been checked in for this version
400: # but hasn't got a grade, therefore must be awaiting a grade
401: if (!defined($slot_name)
402: && $checkedin
403: && !$got_grade) {
404: return ('WAITING_FOR_GRADE');
405: }
406:
407: # Previously used slot is no longer open, and has been checked in for this version.
408: # However, the problem is not closed, and potentially, another slot might be
409: # used to gain access to it to work on it, until the due date is reached, and the
410: # problem then becomes CLOSED. Therefore return the slotstatus -
411: # (which will be one of: NOT_IN_A_SLOT, RESERVABLE, RESERVABLE_LATER, or NOTRESERVABLE).
412:
413: if (!defined($slot_name) && (($type eq 'problem') || ($type eq 'tool'))) {
414: if ($slotstatus eq 'NOT_IN_A_SLOT') {
415: if (!$num_usable_slots) {
416: ($slotstatus,$datemsg) = &check_reservable_slot($slotstatus,$symb,$now,$checkedin,
417: $consumed_uniq);
418: }
419: }
420: return ($slotstatus,$datemsg);
421: }
422:
423: if ($slotstatus eq 'NOT_IN_A_SLOT'
424: && $checkedin ) {
425:
426: if ($got_grade) {
427: if ($blockip eq 'answer') {
428: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
429: } else {
430: return ('SHOW_ANSWER');
431: }
432: } else {
433: return ('WAITING_FOR_GRADE');
434: }
435:
436: }
437:
438: if (($is_correct) && ($blockip ne 'answer')) {
439: if (($type eq 'problem') || ($type eq 'tool')) {
440: return ($status);
441: }
442: return ('SHOW_ANSWER');
443: }
444:
445: if ( $status eq 'CANNOT_ANSWER' &&
446: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT' &&
447: $slotstatus ne 'NEED_DIFFERENT_IP') ) {
448: return ($status,$datemsg);
449: }
450: return ($slotstatus,$datemsg,$slot_name,$returned_slot,$ipused);
451: }
452:
453: sub check_reservable_slot {
454: my ($slotstatus,$symb,$now,$checkedin,$consumed_uniq) = @_;
455: my $datemsg;
456: if ($slotstatus eq 'NOT_IN_A_SLOT') {
457: if ($env{'request.course.id'}) {
458: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
459: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
460: unless ($symb) {
461: ($symb)=&Apache::lonnet::whichuser();
462: }
463: $slotstatus = 'NOTRESERVABLE';
464: my ($reservable_now_order,$reservable_now,$reservable_future_order,
465: $reservable_future) =
466: &Apache::loncommon::get_future_slots($cnum,$cdom,$now,$symb);
467: if ((ref($reservable_now_order) eq 'ARRAY') && (ref($reservable_now) eq 'HASH')) {
468: if (@{$reservable_now_order} > 0) {
469: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
470: $slotstatus = 'RESERVABLE';
471: $datemsg = $reservable_now->{$reservable_now_order->[-1]}{'endreserve'};
472: } else {
473: my ($uniqstart,$uniqend,$useslot);
474: if (ref($consumed_uniq) eq 'ARRAY') {
475: ($uniqstart,$uniqend)=@{$consumed_uniq};
476: }
477: foreach my $slot (reverse(@{$reservable_now_order})) {
478: if ($reservable_now->{$slot}{'uniqueperiod'} =~ /^(\d+)\,(\d+)$/) {
479: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
480: next if (!
481: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
482: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
483: }
484: $useslot = $slot;
485: last;
486: }
487: if ($useslot) {
488: $slotstatus = 'RESERVABLE';
489: $datemsg = $reservable_now->{$useslot}{'endreserve'};
490: }
491: }
492: }
493: }
494: unless ($slotstatus eq 'RESERVABLE') {
495: if ((ref($reservable_future_order) eq 'ARRAY') && (ref($reservable_future) eq 'HASH')) {
496: if (@{$reservable_future_order} > 0) {
497: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
498: $slotstatus = 'RESERVABLE_LATER';
499: $datemsg = $reservable_future->{$reservable_future_order->[0]}{'startreserve'};
500: } else {
501: my ($uniqstart,$uniqend,$useslot);
502: if (ref($consumed_uniq) eq 'ARRAY') {
503: ($uniqstart,$uniqend)=@{$consumed_uniq};
504: }
505: foreach my $slot (@{$reservable_future_order}) {
506: if ($reservable_future->{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
507: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
508: next if (!
509: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
510: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
511: }
512: $useslot = $slot;
513: last;
514: }
515: if ($useslot) {
516: $slotstatus = 'RESERVABLE_LATER';
517: $datemsg = $reservable_future->{$useslot}{'startreserve'};
518: }
519: }
520: }
521: }
522: }
523: }
524: }
525: return ($slotstatus,$datemsg);
526: }
527:
528: # JB, 9/24/2002: Any changes in this function may require a change
529: # in lonnavmaps::resource::getDateStatus.
530: sub check_access {
531: my ($id,$symb) = @_;
532: my $date ='';
533: my $status;
534: my $datemsg = '';
535: my $lastdate = '';
536: my $type;
537: my $passed;
538:
539: if ($env{'request.state'} eq "construct") {
540: if ($env{'form.problemstate'}) {
541: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
542: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
543: && &hide_problem_status())) {
544: return ('CANNOT_ANSWER',
545: &mt('is in this state due to author settings.'));
546: }
547: } else {
548: return ($env{'form.problemstate'},
549: &mt('is in this state due to author settings.'));
550: }
551: }
552: &Apache::lonxml::debug("in construction ignoring dates");
553: $status='CAN_ANSWER';
554: $datemsg=&mt('is in under construction');
555: # return ($status,$datemsg);
556: }
557:
558: &Apache::lonxml::debug("checking for part :$id:");
559: &Apache::lonxml::debug("time:".time);
560:
561: unless ($symb) {
562: ($symb)=&Apache::lonnet::whichuser();
563: }
564: &Apache::lonxml::debug("symb:".$symb);
565: #if ($env{'request.state'} ne "construct" && $symb ne '') {
566: if ($env{'request.state'} ne "construct") {
567: my $idacc = &Apache::lonnet::EXT("resource.$id.acc",$symb);
568: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
569: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
570: $status='INVALID_ACCESS';
571: $date=&mt("can not be accessed from your location.");
572: return($status,$date);
573: }
574: if ($env{'form.grade_imsexport'}) {
575: if (($env{'request.course.id'}) &&
576: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
577: return ('SHOW_ANSWER');
578: }
579: }
580: foreach my $temp ("opendate","duedate","answerdate") {
581: $lastdate = $date;
582: if ($temp eq 'duedate') {
583: $date = &due_date($id,$symb);
584: } else {
585: $date = &Apache::lonnet::EXT("resource.$id.$temp",$symb);
586: }
587:
588: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type",$symb);
589: if ($thistype =~ /^(con_lost|no_such_host)/ ||
590: $date =~ /^(con_lost|no_such_host)/) {
591: $status='UNAVAILABLE';
592: $date=&mt("may open later.");
593: return($status,$date);
594: }
595: if ($thistype eq 'date_interval') {
596: if ($temp eq 'opendate') {
597: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)-$date;
598: }
599: if ($temp eq 'answerdate') {
600: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)+$date;
601: }
602: }
603: &Apache::lonxml::debug("found :$date: for :$temp:");
604: if ($date eq '') {
605: $date = &mt("an unknown date"); $passed = 0;
606: } elsif ($date eq 'con_lost') {
607: $date = &mt("an indeterminate date"); $passed = 0;
608: } else {
609: if (time < $date) { $passed = 0; } else { $passed = 1; }
610: $date = &Apache::lonlocal::locallocaltime($date);
611: }
612: if (!$passed) { $type=$temp; last; }
613: }
614: &Apache::lonxml::debug("have :$type:$passed:");
615: if ($passed) {
616: $status='SHOW_ANSWER';
617: $datemsg=$date;
618: } elsif ($type eq 'opendate') {
619: $status='CLOSED';
620: $datemsg = &mt('will open on [_1]',$date);
621: } elsif ($type eq 'duedate') {
622: $status='CAN_ANSWER';
623: $datemsg = &mt('is due at [_1]',$date);
624: } elsif ($type eq 'answerdate') {
625: $status='CLOSED';
626: $datemsg = &mt('was due on [_1], and answers will be available on [_2]',
627: $lastdate,$date);
628: }
629: }
630: if ($status eq 'CAN_ANSWER' ||
631: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
632: #check #tries, and if correct.
633: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
634: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries",$symb);
635: if ( $tries eq '' ) { $tries = '0'; }
636: if ( $maxtries eq '' &&
637: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
638: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
639: # if (correct and show prob status) or excused then CANNOT_ANSWER
640: if ( ($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/)
641: && (&show_problem_status()) ) {
642: if (($Apache::lonhomework::history{"resource.$id.awarded"} >= 1) ||
643: (&Apache::lonnet::EXT("resource.$id.retrypartial",$symb) !~/^1|on|yes$/i)) {
644: $status = 'CANNOT_ANSWER';
645: }
646: } elsif ($Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
647: $status = 'CANNOT_ANSWER';
648: }
649: if ($status eq 'CANNOT_ANSWER'
650: && &show_answer_problem_status()) {
651: $status = 'SHOW_ANSWER';
652: }
653: }
654: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
655: my @interval=&Apache::lonnet::EXT("resource.$id.interval",$symb);
656: &Apache::lonxml::debug("looking for interval @interval");
657: if ($interval[0]=~ /^\d+/) {
658: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
659: &Apache::lonxml::debug("looking for accesstime $first_access");
660: if (!$first_access) {
661: $status='NOT_YET_VIEWED';
662: my $due_date = &due_date($id,$symb);
663: my $seconds_left = $due_date - time;
664: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
665: if ($seconds_left > $timelimit || $due_date eq '') {
666: $seconds_left = $timelimit;
667: }
668: $datemsg=&seconds_to_human_length($seconds_left);
669: }
670: }
671: }
672:
673: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
674: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
675: # return ('UNCHECKEDOUT','needs to be checked out');
676: #}
677:
678: &Apache::lonxml::debug("sending back :$status:$datemsg:");
679: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
680: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
681: $status='CAN_ANSWER';
682: $datemsg=&mt('is closed but you are allowed to view it');
683: }
684:
685: return ($status,$datemsg);
686: }
687: # this should work exactly like the copy in lonnavmaps.pm
688: sub due_date {
689: my ($part_id,$symb,$udom,$uname)=@_;
690: my $date;
691: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
692: $udom,$uname);
693: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
694: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
695: $udom,$uname);
696: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
697: if ($interval[0] =~ /\d+/) {
698: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
699: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
700: if (defined($first_access)) {
701: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
702: my $interval = $first_access+$timelimit;
703: $date = (!$due_date || $interval < $due_date) ? $interval
704: : $due_date;
705: } else {
706: $date = $due_date;
707: }
708: } else {
709: $date = $due_date;
710: }
711: return $date;
712: }
713:
714: sub seconds_to_human_length {
715: my ($length)=@_;
716:
717: my $seconds=$length%60; $length=int($length/60);
718: my $minutes=$length%60; $length=int($length/60);
719: my $hours=$length%24; $length=int($length/24);
720: my $days=$length;
721:
722: my $timestr;
723: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
724: if ($hours > 0) { $timestr.=($timestr?", ":"").
725: &mt('[quant,_1,hour]',$hours); }
726: if ($minutes > 0) { $timestr.=($timestr?", ":"").
727: &mt('[quant,_1,minute]',$minutes); }
728: if ($seconds > 0) { $timestr.=($timestr?", ":"").
729: &mt('[quant,_1,second]',$seconds); }
730: return $timestr;
731: }
732:
733: sub showhash {
734: my (%hash) = @_;
735: &showhashsubset(\%hash,'.');
736: return '';
737: }
738:
739: sub showarray {
740: my ($array)=@_;
741: my $string="(";
742: foreach my $elm (@{ $array }) {
743: if (ref($elm) eq 'ARRAY') {
744: $string.=&showarray($elm);
745: } elsif (ref($elm) eq 'HASH') {
746: $string.= "HASH --- \n<br />";
747: $string.= &showhashsubset($elm,'.');
748: } else {
749: $string.="$elm,"
750: }
751: }
752: chop($string);
753: $string.=")";
754: return $string;
755: }
756:
757: sub showhashsubset {
758: my ($hash,$keyre) = @_;
759: my $resultkey;
760: foreach $resultkey (sort(keys(%$hash))) {
761: if ($resultkey !~ /$keyre/) { next; }
762: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
763: &Apache::lonxml::debug("$resultkey ---- ".
764: &showarray($$hash{$resultkey}));
765: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
766: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
767: &showhashsubset($$hash{$resultkey},'.');
768: } else {
769: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
770: }
771: }
772: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
773: return '';
774: }
775:
776: sub setuppermissions {
777: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
778: unless ($Apache::lonhomework::browse eq 'F') {
779: $Apache::lonhomework::browse=&Apache::lonnet::allowed('bro',$env{'request.filename'});
780: }
781: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
782: if (! $viewgrades &&
783: exists($env{'request.course.sec'}) &&
784: $env{'request.course.sec'} !~ /^\s*$/) {
785: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
786: '/'.$env{'request.course.sec'});
787: }
788: $Apache::lonhomework::viewgrades = $viewgrades;
789:
790: if ($Apache::lonhomework::browse eq 'F' &&
791: $env{'form.devalidatecourseresdata'} eq 'on') {
792: my (undef,$courseid) = &Apache::lonnet::whichuser();
793: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
794: $env{"course.$courseid.domain"});
795: }
796:
797: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
798: if (! $modifygrades &&
799: exists($env{'request.course.sec'}) &&
800: $env{'request.course.sec'} !~ /^\s*$/) {
801: $modifygrades =
802: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
803: '/'.$env{'request.course.sec'});
804: }
805: $Apache::lonhomework::modifygrades = $modifygrades;
806:
807: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
808: if (! $queuegrade &&
809: exists($env{'request.course.sec'}) &&
810: $env{'request.course.sec'} !~ /^\s*$/) {
811: $queuegrade =
812: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
813: '/'.$env{'request.course.sec'});
814: }
815: $Apache::lonhomework::queuegrade = $queuegrade;
816: return '';
817: }
818:
819: sub unset_permissions {
820: undef($Apache::lonhomework::queuegrade);
821: undef($Apache::lonhomework::modifygrades);
822: undef($Apache::lonhomework::viewgrades);
823: undef($Apache::lonhomework::browse);
824: }
825:
826: sub setupheader {
827: my $request=$_[0];
828: &Apache::loncommon::content_type($request,'text/html');
829: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
830: &Apache::loncommon::no_cache($request);
831: }
832: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
833: # 'lastrevisiondate'));
834: $request->send_http_header;
835: return OK if $request->header_only;
836: return ''
837: }
838:
839: sub handle_save_or_undo {
840: my ($request,$problem,$result,$getobjref) = @_;
841:
842: my $file = &Apache::lonnet::filelocation("",$request->uri);
843: my $filebak =$file.".bak";
844: my $filetmp =$file.".tmp";
845: my $error=0;
846: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
847: my $error=0;
848: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
849: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
850: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
851: if (!$error) {
852: &Apache::lonxml::info("<p><b>".
853: &mt("Undid changes, Switched [_1] and [_2]",
854: '<span class="LC_filename">'.$filebak.
855: '</span>',
856: '<span class="LC_filename">'.$file.
857: '</span>')."</b></p>");
858: } else {
859: &Apache::lonxml::info("<p><span class=\"LC_error\">".
860: &mt("Unable to undo, unable to switch [_1] and [_2]",
861: '<span class="LC_filename">'.
862: $filebak.'</span>',
863: '<span class="LC_filename">'.
864: $file.'</span>')."</span></p>");
865: $error=1;
866: }
867: } else {
868: &Apache::lonnet::correct_line_ends($result);
869:
870: my $fs=Apache::File->new(">$filebak");
871: if (defined($fs)) {
872: print $fs $$problem;
873: } else {
874: &Apache::lonxml::info("<span class=\"LC_error\">".
875: &mt("Unable to make backup [_1]",
876: '<span class="LC_filename">'.
877: $filebak.'</span>')."</span>");
878: $error=2;
879: }
880: my $fh=Apache::File->new(">$file");
881: if (defined($fh)) {
882: print $fh $$result;
883: if (ref($getobjref) eq 'SCALAR') {
884: if ($file =~ m{([^/]+)\.(html?)$}) {
885: my $fname = $1;
886: my $ext = $2;
887: my $path = $file;
888: $path =~ s/\Q$fname\E\.\Q$ext\E$//;
889: my (%allfiles,%codebase);
890: &Apache::lonnet::extract_embedded_items($file,\%allfiles,
891: \%codebase,$result);
892: if (keys(%allfiles) > 0) {
893: my $url = $request->uri;
894: my $state = <<STATE;
895: <input type="hidden" name="action" value="upload_embedded" />
896: <input type="hidden" name="url" value="$url" />
897: STATE
898: $$getobjref = "<h3>".&mt("Reference Warning")."</h3>".
899: "<p>".&mt("Completed upload of the file. This file contained references to other files.")."</p>".
900: "<p>".&mt("Please select the locations from which the referenced files are to be uploaded.")."</p>".
901: &Apache::loncommon::ask_for_embedded_content($url,$state,\%allfiles,\%codebase,
902: {'error_on_invalid_names' => 1,
903: 'ignore_remote_references' => 1,});
904: }
905: }
906: }
907: } else {
908: &Apache::lonxml::info('<span class="LC_error">'.
909: &mt("Unable to write to [_1]",
910: '<span class="LC_filename">'.
911: $file.'</span>').
912: '</span>');
913: $error|=4;
914: }
915: }
916: return $error;
917: }
918:
919: sub analyze_header {
920: my ($request) = @_;
921: my $js = &Apache::structuretags::setmode_javascript();
922:
923: # Breadcrumbs
924: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
925: 'text' => 'Authoring Space'},
926: {'href' => '',
927: 'text' => 'Problem Testing'},
928: {'href' => '',
929: 'text' => 'Analyzing a problem'}];
930:
931: my $result =
932: &Apache::loncommon::start_page('Analyzing a problem',
933: $js,
934: {'bread_crumbs' => $brcrum,})
935: .&Apache::loncommon::head_subbox(
936: &Apache::loncommon::CSTR_pageheader());
937: $result .=
938: '<form name="lonhomework" method="post" action="'.
939: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
940: '<input type="hidden" name="problemmode" value="'.
941: $env{'form.problemmode'}.'" />'.
942: &Apache::structuretags::remember_problem_state().'
943: <div class="LC_edit_problem_analyze_header">
944: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
945: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
946: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
947: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
948: <hr />
949: <input type="button" name="submitmode" value="'.&mt("View").'" '.
950: 'onclick="javascript:setmode(this.form,'."'view'".')" />
951: <hr />
952: </div>'
953: .&Apache::lonxml::message_location().
954: '</form>';
955: &Apache::lonxml::add_messages(\$result);
956: $request->print($result);
957: $request->rflush();
958: }
959:
960: sub analyze_footer {
961: my ($request) = @_;
962: $request->print(&Apache::loncommon::end_page());
963: $request->rflush();
964: }
965:
966: sub analyze {
967: my ($request,$file) = @_;
968: &Apache::lonxml::debug("Analyze");
969: my $result;
970: my %overall;
971: my %seedexample;
972: my %allparts;
973: my $rndseed=$env{'form.rndseed'};
974: &analyze_header($request);
975: my %prog_state=
976: &Apache::lonhtmlcommon::Create_PrgWin($request,$env{'form.numtoanalyze'});
977: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
978: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,'last problem');
979: if (&Apache::loncommon::connection_aborted($request)) { return; }
980: my $thisseed=$i+$rndseed;
981: my $subresult=&Apache::lonnet::ssi($request->uri,
982: ('grade_target' => 'analyze'),
983: ('rndseed' => $thisseed));
984: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
985: my %analyze=&Apache::lonnet::str2hash($subresult);
986: my @parts;
987: if (ref($analyze{'parts'}) eq 'ARRAY') {
988: @parts=@{ $analyze{'parts'} };
989: }
990: foreach my $part (@parts) {
991: if (!exists($allparts{$part})) {$allparts{$part}=1;};
992: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
993: $analyze{$part.'.type'} eq 'stringresponse' ||
994: $analyze{$part.'.type'} eq 'formularesponse' ) {
995: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
996: my $i=0;
997: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
998: push( @{ $overall{$part.'.answer'}[$i] },
999: $answer_part);
1000: my $concatanswer= join("\0",@{ $answer_part });
1001: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1002: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1003: }
1004: $seedexample{join("\0",$part,$i,@{$answer_part})}=
1005: $thisseed;
1006: $i++;
1007: }
1008: }
1009: if (!keys(%{ $analyze{$part.'.answer'} })) {
1010: my $answer_part =
1011: ['<span class="LC_error">'.&mt('Error').'</span>'];
1012: $seedexample{join("\0",$part,0,@{$answer_part})}=
1013: $thisseed;
1014: push( @{ $overall{$part.'.answer'}[0] },
1015: $answer_part);
1016: }
1017: }
1018: }
1019: }
1020: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,&mt('Analyzing Results'));
1021: $request->print('<hr />'
1022: .'<h3>'
1023: .&mt('List of possible answers')
1024: .'</h3>'
1025: );
1026: foreach my $part (sort(keys(%allparts))) {
1027: if ((ref($overall{$part.'.answer'}) eq 'ARRAY') &&
1028: (@{$overall{$part.'.answer'}} > 0)) {
1029: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
1030: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1031: $request->print(&Apache::loncommon::start_data_table()
1032: .&Apache::loncommon::start_data_table_header_row()
1033: .'<th colspan="'.($num_cols+1).'">'
1034: .&mt('Part').' '.$part
1035: );
1036: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1037: $request->print(' '.&mt('Answer [_1]',$i+1));
1038: }
1039: $request->print('</th>'
1040: .&Apache::loncommon::end_data_table_header_row()
1041: );
1042: my %frequency;
1043: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
1044: $frequency{join("\0",@{ $answer })}++;
1045: }
1046: $request->print(&Apache::loncommon::start_data_table_header_row()
1047: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
1048: .'<th>'.&mt('Frequency').'<br />'
1049: .'('.&mt('click for example').')</th>'
1050: .&Apache::loncommon::end_data_table_header_row()
1051: );
1052: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1053: $request->print(&Apache::loncommon::start_data_table_row()
1054: .'<td>'
1055: .join('</td><td>',split("\0",$answer))
1056: .'</td>'
1057: .'<td>'
1058: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
1059: .'</td>'
1060: .&Apache::loncommon::end_data_table_row()
1061: );
1062: }
1063: $request->print(&Apache::loncommon::end_data_table());
1064: }
1065: } else {
1066: $request->print('<p class="LC_warning">'
1067: .&mt('Response [_1] is not analyzable at this time.',$part)
1068: .'</p>'
1069: );
1070: }
1071: }
1072: if (scalar(keys(%allparts)) == 0 ) {
1073: $request->print('<p class="LC_warning">'
1074: .&mt('Found no analyzable responses in this problem.'
1075: .' Currently only Numerical, Formula and String response styles are supported.')
1076: .'</p>'
1077: );
1078: }
1079: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1080: &analyze_footer($request);
1081: &Apache::lonhomework::showhash(%overall);
1082: return $result;
1083: }
1084:
1085: {
1086: my $show_problem_status;
1087: sub reset_show_problem_status {
1088: undef($show_problem_status);
1089: }
1090:
1091: sub set_show_problem_status {
1092: my ($new_status) = @_;
1093: $show_problem_status = lc($new_status);
1094: }
1095:
1096: sub hide_problem_status {
1097: return ($show_problem_status eq 'no'
1098: || $show_problem_status eq 'no_feedback_ever');
1099: }
1100:
1101: sub show_problem_status {
1102: return ($show_problem_status eq 'yes'
1103: || $show_problem_status eq 'answer'
1104: || $show_problem_status eq '');
1105: }
1106:
1107: sub show_some_problem_status {
1108: return ($show_problem_status eq 'no');
1109: }
1110:
1111: sub show_no_problem_status {
1112: return ($show_problem_status eq 'no_feedback_ever');
1113: }
1114:
1115: sub show_answer_problem_status {
1116: return ($show_problem_status eq 'answer');
1117: }
1118: }
1119:
1120: sub editxmlmode {
1121: my ($request,$file) = @_;
1122: my $result;
1123: my $problem=&Apache::lonnet::getfile($file);
1124: if ($problem eq -1) {
1125: &Apache::lonxml::error(
1126: '<p class="LC_error">'
1127: .&mt('Unable to find [_1]',
1128: '<span class="LC_filename">'.$file.'</span>')
1129: .'</p>');
1130:
1131: $problem='';
1132: }
1133: if (($env{'form.problemmode'} eq 'saveeditxml') ||
1134: ($env{'form.problemmode'} eq 'saveviewxml') ||
1135: ($env{'form.problemmode'} eq 'undoxml')) {
1136: my $error=&handle_save_or_undo($request,\$problem,
1137: \$env{'form.editxmltext'});
1138: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
1139: }
1140: &Apache::lonhomework::showhashsubset(\%env,'^form');
1141: if ($env{'form.problemmode'} eq 'saveviewxml') {
1142: &Apache::lonhomework::showhashsubset(\%env,'^form');
1143: $env{'form.problemmode'}='view';
1144: &renderpage($request,$file);
1145: } else {
1146: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1147: if ($cols > 80) { $cols = 80; }
1148: if ($cols < 70) { $cols = 70; }
1149: if ($rows < 20) { $rows = 20; }
1150: my $js =
1151: &Apache::edit::js_change_detection().
1152: &Apache::loncommon::resize_textarea_js().
1153: &Apache::structuretags::setmode_javascript().
1154: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1155:
1156: # Breadcrumbs
1157: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1158: 'text' => 'Authoring Space'},
1159: {'href' => '',
1160: 'text' => 'Problem Editing'}];
1161:
1162: my $start_page =
1163: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
1164: {'no_auto_mt_title' => 1,
1165: 'only_body' => 0,
1166: 'add_entries' => {
1167: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1168: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1169: },
1170: 'bread_crumbs' => $brcrum,
1171: });
1172:
1173: $result=$start_page
1174: .&Apache::loncommon::head_subbox(
1175: &Apache::loncommon::CSTR_pageheader());
1176: $result.=&renderpage($request,$file,['no_output_web'],1).
1177: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1178: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1179: &Apache::structuretags::remember_problem_state().'
1180: <div class="LC_edit_problem_header">
1181: <div class="LC_edit_problem_header_title">'.
1182: &mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').
1183: '</div><div class="LC_edit_actionbar" id="actionbar">';
1184:
1185: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
1186: &Apache::structuretags::problem_edit_buttons('editxml');
1187: $result.='<div>';
1188:
1189: $result .= '<ol class="LC_primary_menu" style="display:inline-block;font-size:90%;vertical-align:middle;">';
1190:
1191: unless ($env{'environment.nocodemirror'}) {
1192: # dropdown menus
1193: $result .= Apache::lonmenu::create_submenu("#", "",
1194: &mt("Problem Templates"), template_dropdown_datastructure());
1195:
1196: $result .= Apache::lonmenu::create_submenu("#", "",
1197: &mt("Response Types"), responseblock_dropdown_datastructure());
1198:
1199: $result .= Apache::lonmenu::create_submenu("#", "",
1200: &mt("Conditional Blocks"), conditional_scripting_datastructure());
1201:
1202: $result .= Apache::lonmenu::create_submenu("#", "",
1203: &mt("Miscellaneous"), misc_datastructure());
1204: }
1205:
1206: $result .= Apache::lonmenu::create_submenu("#", "",
1207: &mt("Help") . ' <img src="/adm/help/help.png" alt="' . &mt("Help") .
1208: '" style="vertical-align:text-bottom; height: auto; margin:0; "/>',
1209: helpmenu_datastructure(),"");
1210:
1211: $result.="</ol></div>";
1212:
1213: $result .= '</div></div>' .
1214: &Apache::lonxml::message_location() .
1215: &Apache::loncommon::xmleditor_js() .
1216: '<textarea ' . &Apache::edit::element_change_detection() .
1217: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" ' .
1218: ' name="editxmltext" id="LC_editxmltext">' .
1219: &HTML::Entities::encode($problem,'<>&"') .
1220: '</textarea> <div id="LC_aftertextarea"> </div> </form>';
1221:
1222: my $resource = $env{'request.ambiguous'};
1223: unless($env{'environment.nocodemirror'}){
1224: $result .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined-xml.css">
1225: <script src="/adm/codemirror/codemirror-compressed-xml.js"></script>
1226: <script>
1227: CodeMirror.defineMode("mixedmode", function(config) {
1228: return CodeMirror.multiplexingMode(
1229: CodeMirror.getMode(config, "xml"),
1230: {
1231: open: "\<script type=\"loncapa/perl\"\>", close: "\</script\>",
1232: mode: CodeMirror.getMode(config, "perl"),
1233: delimStyle: "tag",
1234: }
1235: );
1236: });
1237: var cm = CodeMirror.fromTextArea(document.getElementById("LC_editxmltext"),
1238: {
1239: mode: "mixedmode",
1240: lineWrapping: true,
1241: lineNumbers: true,
1242: tabSize: 4,
1243: indentUnit: 4,
1244:
1245: autoCloseTags: true,
1246: autoCloseBrackets: true,
1247: height: "auto",
1248: styleActiveLine: true,
1249:
1250: extraKeys: {
1251: "Tab": "indentMore",
1252: "Shift-Tab": "indentLess",
1253: }
1254: });
1255: restoreScrollPosition("'.$resource.'");
1256: </script>';
1257: }
1258:
1259: $result .= &Apache::loncommon::end_page();
1260: &Apache::lonxml::add_messages(\$result);
1261: $request->print($result);
1262: }
1263: return '';
1264: }
1265:
1266: #
1267: # Render the page in whatever target desired.
1268: #
1269: sub renderpage {
1270: my ($request,$file,$targets,$return_string,$donebuttonmsg) = @_;
1271:
1272: my @targets = @{$targets || [&get_target()]};
1273: &Apache::lonhomework::showhashsubset(\%env,'form.');
1274: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1275:
1276: my $overall_result;
1277: foreach my $target (@targets) {
1278: # FIXME need to do something intelligent when a problem goes
1279: # from viewable to not viewable due to map conditions
1280: #&setuppermissions();
1281: #if ( $Apache::lonhomework::browse ne '2'
1282: # && $Apache::lonhomework::browse ne 'F' ) {
1283: # $request->print(" You most likely shouldn't see me.");
1284: #}
1285: #my $t0 = [&gettimeofday()];
1286: my $output=1;
1287: if ($target eq 'no_output_web') {
1288: $target = 'web'; $output=0;
1289: }
1290: my $problem=&Apache::lonnet::getfile($file);
1291: my $result;
1292: if ($problem eq -1) {
1293: $problem='';
1294: my $filename=(split('/',$file))[-1];
1295: my $error =
1296: '<p class="LC_error">'
1297: .&mt('Unable to find [_1]',
1298: '<span class="LC_filename">'.$filename.'</span>')
1299: ."</p>";
1300: $result.=
1301: &Apache::loncommon::simple_error_page($request,'Not available',
1302: $error,{'no_auto_mt_msg' => 1});
1303: return;
1304: }
1305:
1306: my %mystyle;
1307: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1308: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1309: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1310:
1311: &Apache::lonxml::debug("Should be parsing now");
1312: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1313: &setup_vars($target),%mystyle);
1314: &finished_parsing();
1315: if (!$output) { $result = ''; }
1316: #$request->print("Result follows:");
1317: if ($target eq 'modified') {
1318: &handle_save_or_undo($request,\$problem,\$result);
1319: } else {
1320: if ($target eq 'analyze') {
1321: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1322: undef(%Apache::lonhomework::analyze);
1323: } elsif ($target eq 'web') {
1324: if ($donebuttonmsg) {
1325: $result =~ s{</body>}{};
1326: $result.= &Apache::loncommon::confirmwrapper(&Apache::lonhtmlcommon::confirm_success($donebuttonmsg,1))."\n</body>";
1327: }
1328: }
1329: #my $td=&tv_interval($t0);
1330: #if ( $Apache::lonxml::debug) {
1331: #$result =~ s:</body>::;
1332: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1333: #}
1334: # $request->print($result);
1335: $overall_result.=$result;
1336: # $request->rflush();
1337: }
1338: #$request->print(":Result ends");
1339: #my $td=&tv_interval($t0);
1340: }
1341: if (!$return_string) {
1342: &Apache::lonxml::add_messages(\$overall_result);
1343: $request->print($overall_result);
1344: $request->rflush();
1345: } else {
1346: return $overall_result;
1347: }
1348: }
1349:
1350: sub finished_parsing {
1351: undef($Apache::lonhomework::parsing_a_problem);
1352: undef($Apache::lonhomework::parsing_a_task);
1353: }
1354:
1355: # function extracted from get_template_html
1356: # returns "key" -> list
1357: # key: path of template
1358: # value 1: title
1359: # value 2: category
1360: # value 3: name of help topic ???
1361: sub get_template_list{
1362: my ($extension) = @_;
1363:
1364: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1365: '/templates/*.'.$extension);
1366: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1367: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1368: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1369: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1370: return @files;
1371: }
1372:
1373: sub get_template_html {
1374: my ($extension) = @_;
1375: my $result;
1376: my @allnames;
1377: &Apache::lonxml::debug("Looking for :$extension:");
1378: my $glob_extension = $extension;
1379: if ($extension eq 'survey' || $extension eq 'exam') {
1380: $glob_extension = 'problem';
1381: }
1382: my @files = &get_template_list($extension);
1383: my ($midpoint,$seconddiv,$numfiles);
1384: my @noexamplelink = ('blank.problem','blank.library','script.library');
1385: $numfiles = 0;
1386: foreach my $file (@files) {
1387: next if ($file->[1] !~ /\S/);
1388: $numfiles ++;
1389: }
1390: if ($numfiles > 0) {
1391: $result = '<div class="LC_left_float">';
1392: $midpoint = int($numfiles/2);
1393: if ($numfiles%2) {
1394: $midpoint ++;
1395: }
1396: }
1397: my $count = 0;
1398: my $currentcategory='';
1399: my $first = 1;
1400: my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
1401: foreach my $file (@files) {
1402: next if ($file->[1] !~ /\S/);
1403: if ($file->[2] ne $currentcategory) {
1404: $currentcategory=$file->[2];
1405: if ((!$seconddiv) && ($count >= $midpoint)) {
1406: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1407: $seconddiv = 1;
1408: } elsif (!$first) {
1409: $result.='</div>'."\n";
1410: } else {
1411: $first = 0;
1412: }
1413: $result.= '<div class="LC_Box">'."\n"
1414: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1415: $count++;
1416: }
1417: $result .=
1418: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1419: $file->[1].'</label>';
1420: if ($file->[3]) {
1421: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1422: }
1423: # Provide example link
1424: my $filename=$file->[0];
1425: $filename=~s{^\Q$londocroot\E}{};
1426: if (!(grep($filename =~ /\Q$_\E$/,@noexamplelink))) {
1427: $result .= ' <span class="LC_fontsize_small">'
1428: .&Apache::loncommon::modal_link(
1429: $filename.'?inhibitmenu=yes',&mt('Example'),600,420,'sample')
1430: .'</span>';
1431: }
1432: $result .= '<br />'."\n";
1433: $count ++;
1434: }
1435: if ($numfiles > 0) {
1436: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1437: }
1438: return $result;
1439: }
1440:
1441: sub newproblem {
1442: my ($request) = @_;
1443:
1444: if ($env{'form.mode'} eq 'blank'){
1445: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1446: my $templatefilename =
1447: $request->dir_config('lonIncludes').'/templates/blank.problem';
1448: &File::Copy::copy($templatefilename,$dest);
1449: &renderpage($request,$dest);
1450: return;
1451: }
1452: my $errormsg;
1453: if ($env{'form.template'}) {
1454: my $file;
1455: my ($extension) = ($env{'form.template'} =~ /\.(\w+)$/);
1456: if ($extension) {
1457: my @files = &get_template_list($extension);
1458: foreach my $poss (@files) {
1459: if (ref($poss) eq 'ARRAY') {
1460: if ($env{'form.template'} eq $poss->[0]) {
1461: $file = $env{'form.template'};
1462: last;
1463: }
1464: }
1465: }
1466: if ($file) {
1467: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1468: &File::Copy::copy($file,$dest);
1469: &renderpage($request,$dest);
1470: return;
1471: } else {
1472: $errormsg = '<p class="LC_error">'.&mt('Invalid template file.').'</p>';
1473: }
1474: } else {
1475: $errormsg = '<p class="LC_error">'.&mt('Invalid template file; template needs to be a .problem, .library, or .task file.').'</p>';
1476: }
1477: }
1478:
1479: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1480: &Apache::lonxml::debug("Looking for :$extension:");
1481: my $templatelist=&get_template_html($extension);
1482: if ($env{'form.newfile'} && !$templatelist) {
1483: # no templates found
1484: my $templatefilename =
1485: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1486: &Apache::lonxml::debug("$templatefilename");
1487: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1488: &File::Copy::copy($templatefilename,$dest);
1489: &renderpage($request,$dest);
1490: } else {
1491: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1492: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1493: my $instructions;
1494: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1495: 'text' => 'Authoring Space'},
1496: {'href' => '',
1497: 'text' => "Create New $extension"}];
1498: my $start_page =
1499: &Apache::loncommon::start_page("Create New $extension",
1500: undef,
1501: {'bread_crumbs' => $brcrum,});
1502: $request->print(
1503: $start_page
1504: .&Apache::loncommon::head_subbox(
1505: &Apache::loncommon::CSTR_pageheader())
1506: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1507: $errormsg
1508: ".&mt("The requested file [_1] currently does not exist.",
1509: '<span class="LC_filename">'.$url.'</span>').'
1510: <p class="LC_info">
1511: '.&mt("To create a new $extension, select a template from the".
1512: " list below. Then click on the \"Create $extension\" button.").'
1513: </p><div><form action="'.$url.'" method="post">');
1514:
1515: if (defined($templatelist)) {
1516: $request->print($templatelist);
1517: }
1518: $request->print('<br /><input type="submit" name="newfile" value="'.
1519: &mt("Create $extension").'" />');
1520: $request->print('</form></div>'.&Apache::loncommon::end_page());
1521: }
1522: return;
1523: }
1524:
1525: sub update_construct_style {
1526: if ($env{'request.state'} eq "construct"
1527: && $env{'form.problemmode'} eq 'view'
1528: && defined($env{'form.submitted'})
1529: && !defined($env{'form.resetdata'})
1530: && !defined($env{'form.newrandomization'})) {
1531: if ((!$env{'form.style_file'} && $env{'construct.style'})
1532: ||$env{'form.clear_style_file'}) {
1533: &Apache::lonnet::delenv('construct.style');
1534: } elsif ($env{'form.style_file'}
1535: && $env{'construct.style'} ne $env{'form.style_file'}) {
1536: &Apache::lonnet::appenv({'construct.style' =>
1537: $env{'form.style_file'}});
1538: }
1539: }
1540: }
1541:
1542: #
1543: # Sets interval for current user so time left will be zero, either for the entire folder
1544: # containing the current resource, or just the resource, depending on value of first item
1545: # in interval array retrieved from EXT("resource.0.interval");
1546: #
1547: sub zero_timer {
1548: my ($symb) = @_;
1549: my ($hastimeleft,$first_access,$now);
1550: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
1551: if (@interval > 1) {
1552: if ($interval[1] eq 'course') {
1553: return ('fail',&mt('Ending of timed events not supported for intervals set course-wide'));
1554: } else {
1555: my $now = time;
1556: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
1557: if ($first_access > 0) {
1558: my ($timelimit,$donesuffix) = split(/_/,$interval[0],2);
1559: if ($donesuffix =~ /^done(?:|\:[^\:]+\:)(.*)$/) {
1560: my ($dummy,$proctor,$secret) = split(/_/,$1);
1561: if (($proctor) && ($secret ne '')) {
1562: my $key = $env{'form.LC_interval_done_proctorpass'};
1563: $key =~ s/^\s+//;
1564: $key =~ s/\s+$//;
1565: if ($env{'form.LC_interval_done_proctorpass'} ne $secret) {
1566: return ('fail',
1567: &mt('Incorrect key entered by proctor'));
1568: }
1569: }
1570: if ($first_access+$timelimit > $now) {
1571: my $done_time = $now - $first_access;
1572: my $snum = 1;
1573: if ($interval[1] eq 'map') {
1574: $snum = 2;
1575: }
1576: my $result =
1577: &Apache::lonparmset::storeparm_by_symb_inner($symb,'0_interval',
1578: $snum,$done_time,
1579: 'date_interval',
1580: $env{'user.name'},
1581: $env{'user.domain'});
1582: if ($result eq '') {
1583: # Record action in "User Notes"
1584: &Apache::lonmsg::store_instructor_comment(
1585: 'Pressed Done button for symb:<br />'.$symb,
1586: $env{'user.name'}, $env{'user.domain'});
1587: return ('ok');
1588: } else {
1589: return ('fail',&mt('Error ending timed event: [_1]',$result));
1590: }
1591: } else {
1592: return ('fail',&mt('Timed event already ended'));
1593: }
1594: } else {
1595: return ('fail',&mt('Timed event can not be ended before the time limit'));
1596: }
1597: } else {
1598: return ('fail',&mt('Timer not yet started for this timed event'));
1599: }
1600: }
1601: } else {
1602: return ('fail',&mt('No timer in use'));
1603: }
1604: return();
1605: }
1606:
1607: sub handler {
1608: #my $t0 = [&gettimeofday()];
1609: my $request=$_[0];
1610:
1611: $Apache::lonxml::request=$request;
1612: $Apache::lonxml::debug=$env{'user.debug'};
1613: $env{'request.uri'}=$request->uri;
1614: &setuppermissions();
1615:
1616: my $file=&Apache::lonnet::filelocation("",$request->uri);
1617:
1618: #check if we know where we are
1619: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread('','',1,1)) {
1620: # if we are browsing we might not be able to know where we are
1621: if ($Apache::lonhomework::browse ne 'F' &&
1622: $env{'request.state'} ne "construct") {
1623: #should know where we are, so ask
1624: &unset_permissions();
1625: $request->internal_redirect('/adm/ambiguous');
1626: return OK;
1627: }
1628: }
1629: if (&setupheader($request)) {
1630: &unset_permissions();
1631: return OK;
1632: }
1633:
1634: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1635: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1636: my ($symb) = &Apache::lonnet::whichuser();
1637: &Apache::lonxml::debug('symb is '.$symb);
1638: if ($env{'request.state'} eq "construct") {
1639: if ( -e $file ) {
1640: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1641: ['problemmode']);
1642: if (!(defined $env{'form.problemmode'})) {
1643: #first visit to problem in construction space
1644: $env{'form.problemmode'}= 'view';
1645: &renderpage($request,$file);
1646: } elsif (($env{'form.problemmode'} eq 'editxml') ||
1647: ($env{'form.problemmode'} eq 'saveeditxml') ||
1648: ($env{'form.problemmode'} eq 'saveviewxml') ||
1649: ($env{'form.problemmode'} eq 'undoxml')) {
1650: &editxmlmode($request,$file);
1651: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1652: &analyze($request,$file);
1653: } else {
1654: &update_construct_style();
1655: &renderpage($request,$file);
1656: }
1657: } else {
1658: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1659: ['mode']);
1660: # requested file doesn't exist in contruction space
1661: &newproblem($request);
1662: }
1663: } else {
1664: # Set the event timer to zero if the "done button" was clicked. The button is
1665: # part of the doneButton form created in lonmenu.pm
1666: my ($donebuttonresult,$donemsg);
1667: if ($symb && $env{'form.LC_interval_done'} eq 'true') {
1668: ($donebuttonresult,$donemsg) = &zero_timer($symb);
1669: undef($env{'form.LC_interval_done'});
1670: undef($env{'form.LC_interval_done_proctorpass'});
1671: }
1672: # just render the page normally outside of construction space
1673: &Apache::lonxml::debug("not construct");
1674: &renderpage($request,$file,undef,undef,$donemsg);
1675: }
1676: #my $td=&tv_interval($t0);
1677: #&Apache::lonxml::debug("Spent $td seconds processing");
1678: # always turn off debug messages
1679: $Apache::lonxml::debug=0;
1680: &unset_permissions();
1681: return OK;
1682:
1683: }
1684:
1685: sub template_dropdown_datastructure {
1686: # gathering the all templates and their path, title, category and help topic
1687: my @templates = get_template_list('problem');
1688: # template category => title
1689: my %tmplthash = ();
1690: # template title => path
1691: my %tmpltcontent = ();
1692:
1693: foreach my $template (@templates){
1694: # put in hash if the template is not empty
1695: unless ($template->[1] eq ''){
1696: push(@{$tmplthash{$template->[2]}}, $template->[1]);
1697: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
1698: }
1699: }
1700:
1701: my $catList = [];
1702: foreach my $cat (sort keys %tmplthash) {
1703: my $catItems = [];
1704: foreach my $title (sort @{$tmplthash{$cat}}) {
1705: my $path = $tmpltcontent{$title}->[0];
1706: my $code;
1707: open(FH, "<$path");
1708: while(<FH>){
1709: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
1710: }
1711: close(FH);
1712:
1713: if ($code ne '') {
1714: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code,'<>&"')) . '\')';
1715: my $currItem = [$href, $title, undef];
1716: push @{$catItems}, $currItem;
1717: }
1718: }
1719: push @{$catList}, [$catItems, $cat, undef];
1720: }
1721:
1722: return $catList;
1723: }
1724:
1725: sub responseblock_dropdown_datastructure {
1726:
1727: my $mathCat = [
1728: [
1729: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
1730: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
1731: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
1732: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
1733: ],
1734: &mt("Math"),
1735: undef
1736: ];
1737:
1738: my $miscCat = [
1739: [
1740: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
1741: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
1742: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
1743: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Two Lists"), undef],
1744: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N statements"), undef],
1745: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Select from Options"), undef],
1746: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
1747: ],
1748: &mt("Miscellaneous"),
1749: undef
1750: ];
1751:
1752: my $chemCat = [
1753: [
1754: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
1755: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Chemical Structure"), undef]
1756: ],
1757: &mt("Chemistry"),
1758: undef
1759: ];
1760:
1761: my $textCat = [
1762: [
1763: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
1764: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
1765: ],
1766: &mt("Text"),
1767: undef
1768: ];
1769:
1770: return [$mathCat, $miscCat, $chemCat, $textCat];
1771: }
1772:
1773:
1774: sub conditional_scripting_datastructure {
1775: # TODO: corresponding routines should be used for the javascript:insertText parts
1776: # instead of the placeholder routine default_xml_tag with the tags
1777: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
1778: # returns the corresponding content for this case
1779:
1780: #TODO translated is currently temporarily here, another solution should be found where the
1781: # needed string can be retrieved
1782:
1783: my $translatedTag = '
1784: <translated>
1785: <lang which="en"></lang>
1786: <lang which="default"></lang>
1787: </translated>';
1788: return [
1789: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Block"), undef],
1790: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
1791: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Date Block"), undef],
1792: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
1793: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
1794: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
1795: ];
1796: }
1797:
1798: sub misc_datastructure {
1799: return [
1800: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
1801: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
1802: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef],
1803: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
1804: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
1805: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
1806: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef],
1807: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("part"))) . "\')", &mt("Problem Part"), undef]
1808: ];
1809: }
1810:
1811: # helper routine for the datastructure building subroutines
1812: sub default_xml_tag {
1813: my ($tag) = @_;
1814: return "\n<$tag></$tag>";
1815: }
1816:
1817:
1818: sub helpmenu_datastructure {
1819:
1820: # filename, title, width, height
1821: my $helpers = [
1822: ['Problem_LON-CAPA_Functions.hlp', &mt('Script Functions'), 800, 600],
1823: ['Greek_Symbols.hlp', &mt('Greek Symbols'), 500, 600],
1824: ['Other_Symbols.hlp', &mt('Other Symbols'), 500, 600],
1825: ['Authoring_Output_Tags.hlp', &mt('Output Tags'), 800, 600],
1826: ['Authoring_Multilingual_Problems.hlp',
1827: &mt('How to create problems in different languages'), 800, 600],
1828: ['loncapa.html', &mt('Language reference'), 800, 600],
1829: ];
1830:
1831: my $help_structure = [];
1832:
1833: foreach my $count (0..(scalar(@{$helpers})-1)) {
1834: my $filename = $helpers->[$count]->[0];
1835: my $title = $helpers->[$count]->[1];
1836: my $width = $helpers->[$count]->[2];
1837: my $height = $helpers->[$count]->[3];
1838: if ($width eq '') {
1839: $width = 500;
1840: }
1841: if ($height eq '') {
1842: $height = 600;
1843: }
1844: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename',$width,$height,'yes');");
1845: push @{$help_structure}, [$href, $title, undef];
1846: }
1847:
1848: return $help_structure;
1849: }
1850:
1851: # we need substitution to not break javascript code
1852: sub convert_for_js {
1853: my $return = shift;
1854: $return =~ s|script|ESCAPEDSCRIPT|g;
1855: $return =~ s|\\|\\\\|g;
1856: $return =~ s|\n|\\r\\n|g;
1857: $return =~ s|'|\\'|g;
1858: $return =~ s|'|\\'|g;
1859: return $return;
1860: }
1861:
1862: 1;
1863: __END__
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