1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Homework handler
3: #
4: # $Id: lonhomework.pm,v 1.369 2017/12/22 02:00:39 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: if (!defined($slot_name) && (($type eq 'problem') || ($type eq 'tool'))) {
413: if ($slotstatus eq 'NOT_IN_A_SLOT') {
414: if (!$num_usable_slots) {
415: if ($env{'request.course.id'}) {
416: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
417: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
418: unless ($symb) {
419: ($symb)=&Apache::lonnet::whichuser();
420: }
421: $slotstatus = 'NOTRESERVABLE';
422: my ($reservable_now_order,$reservable_now,$reservable_future_order,
423: $reservable_future) =
424: &Apache::loncommon::get_future_slots($cnum,$cdom,$now,$symb);
425: if ((ref($reservable_now_order) eq 'ARRAY') && (ref($reservable_now) eq 'HASH')) {
426: if (@{$reservable_now_order} > 0) {
427: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
428: $slotstatus = 'RESERVABLE';
429: $datemsg = $reservable_now->{$reservable_now_order->[-1]}{'endreserve'};
430: } else {
431: my ($uniqstart,$uniqend,$useslot);
432: if (ref($consumed_uniq) eq 'ARRAY') {
433: ($uniqstart,$uniqend)=@{$consumed_uniq};
434: }
435: foreach my $slot (reverse(@{$reservable_now_order})) {
436: if ($reservable_now->{$slot}{'uniqueperiod'} =~ /^(\d+)\,(\d+)$/) {
437: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
438: next if (!
439: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
440: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
441: }
442: $useslot = $slot;
443: last;
444: }
445: if ($useslot) {
446: $slotstatus = 'RESERVABLE';
447: $datemsg = $reservable_now->{$useslot}{'endreserve'};
448: }
449: }
450: }
451: }
452: unless ($slotstatus eq 'RESERVABLE') {
453: if ((ref($reservable_future_order) eq 'ARRAY') && (ref($reservable_future) eq 'HASH')) {
454: if (@{$reservable_future_order} > 0) {
455: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
456: $slotstatus = 'RESERVABLE_LATER';
457: $datemsg = $reservable_future->{$reservable_future_order->[0]}{'startreserve'};
458: } else {
459: my ($uniqstart,$uniqend,$useslot);
460: if (ref($consumed_uniq) eq 'ARRAY') {
461: ($uniqstart,$uniqend)=@{$consumed_uniq};
462: }
463: foreach my $slot (@{$reservable_future_order}) {
464: if ($reservable_future->{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
465: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
466: next if (!
467: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
468: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
469: }
470: $useslot = $slot;
471: last;
472: }
473: if ($useslot) {
474: $slotstatus = 'RESERVABLE_LATER';
475: $datemsg = $reservable_future->{$useslot}{'startreserve'};
476: }
477: }
478: }
479: }
480: }
481: }
482: }
483: }
484: return ($slotstatus,$datemsg);
485: }
486:
487: if ($slotstatus eq 'NOT_IN_A_SLOT'
488: && $checkedin ) {
489:
490: if ($got_grade) {
491: if ($blockip eq 'answer') {
492: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
493: } else {
494: return ('SHOW_ANSWER');
495: }
496: } else {
497: return ('WAITING_FOR_GRADE');
498: }
499:
500: }
501:
502: if (($is_correct) && ($blockip ne 'answer')) {
503: if (($type eq 'problem') || ($type eq 'tool')) {
504: return ($status);
505: }
506: return ('SHOW_ANSWER');
507: }
508:
509: if ( $status eq 'CANNOT_ANSWER' &&
510: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT' &&
511: $slotstatus ne 'NEED_DIFFERENT_IP') ) {
512: return ($status,$datemsg);
513: }
514: return ($slotstatus,$datemsg,$slot_name,$returned_slot,$ipused);
515: }
516:
517: # JB, 9/24/2002: Any changes in this function may require a change
518: # in lonnavmaps::resource::getDateStatus.
519: sub check_access {
520: my ($id,$symb) = @_;
521: my $date ='';
522: my $status;
523: my $datemsg = '';
524: my $lastdate = '';
525: my $type;
526: my $passed;
527:
528: if ($env{'request.state'} eq "construct") {
529: if ($env{'form.problemstate'}) {
530: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
531: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
532: && &hide_problem_status())) {
533: return ('CANNOT_ANSWER',
534: &mt('is in this state due to author settings.'));
535: }
536: } else {
537: return ($env{'form.problemstate'},
538: &mt('is in this state due to author settings.'));
539: }
540: }
541: &Apache::lonxml::debug("in construction ignoring dates");
542: $status='CAN_ANSWER';
543: $datemsg=&mt('is in under construction');
544: # return ($status,$datemsg);
545: }
546:
547: &Apache::lonxml::debug("checking for part :$id:");
548: &Apache::lonxml::debug("time:".time);
549:
550: unless ($symb) {
551: ($symb)=&Apache::lonnet::whichuser();
552: }
553: &Apache::lonxml::debug("symb:".$symb);
554: #if ($env{'request.state'} ne "construct" && $symb ne '') {
555: if ($env{'request.state'} ne "construct") {
556: my $idacc = &Apache::lonnet::EXT("resource.$id.acc",$symb);
557: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
558: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
559: $status='INVALID_ACCESS';
560: $date=&mt("can not be accessed from your location.");
561: return($status,$date);
562: }
563: if ($env{'form.grade_imsexport'}) {
564: if (($env{'request.course.id'}) &&
565: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
566: return ('SHOW_ANSWER');
567: }
568: }
569: foreach my $temp ("opendate","duedate","answerdate") {
570: $lastdate = $date;
571: if ($temp eq 'duedate') {
572: $date = &due_date($id,$symb);
573: } else {
574: $date = &Apache::lonnet::EXT("resource.$id.$temp",$symb);
575: }
576:
577: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type",$symb);
578: if ($thistype =~ /^(con_lost|no_such_host)/ ||
579: $date =~ /^(con_lost|no_such_host)/) {
580: $status='UNAVAILABLE';
581: $date=&mt("may open later.");
582: return($status,$date);
583: }
584: if ($thistype eq 'date_interval') {
585: if ($temp eq 'opendate') {
586: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)-$date;
587: }
588: if ($temp eq 'answerdate') {
589: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)+$date;
590: }
591: }
592: &Apache::lonxml::debug("found :$date: for :$temp:");
593: if ($date eq '') {
594: $date = &mt("an unknown date"); $passed = 0;
595: } elsif ($date eq 'con_lost') {
596: $date = &mt("an indeterminate date"); $passed = 0;
597: } else {
598: if (time < $date) { $passed = 0; } else { $passed = 1; }
599: $date = &Apache::lonlocal::locallocaltime($date);
600: }
601: if (!$passed) { $type=$temp; last; }
602: }
603: &Apache::lonxml::debug("have :$type:$passed:");
604: if ($passed) {
605: $status='SHOW_ANSWER';
606: $datemsg=$date;
607: } elsif ($type eq 'opendate') {
608: $status='CLOSED';
609: $datemsg = &mt('will open on [_1]',$date);
610: } elsif ($type eq 'duedate') {
611: $status='CAN_ANSWER';
612: $datemsg = &mt('is due at [_1]',$date);
613: } elsif ($type eq 'answerdate') {
614: $status='CLOSED';
615: $datemsg = &mt('was due on [_1], and answers will be available on [_2]',
616: $lastdate,$date);
617: }
618: }
619: if ($status eq 'CAN_ANSWER' ||
620: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
621: #check #tries, and if correct.
622: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
623: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries",$symb);
624: if ( $tries eq '' ) { $tries = '0'; }
625: if ( $maxtries eq '' &&
626: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
627: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
628: # if (correct and show prob status) or excused then CANNOT_ANSWER
629: if ( ($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/)
630: && (&show_problem_status()) ) {
631: if (($Apache::lonhomework::history{"resource.$id.awarded"} >= 1) ||
632: (&Apache::lonnet::EXT("resource.$id.retrypartial",$symb) !~/^1|on|yes$/i)) {
633: $status = 'CANNOT_ANSWER';
634: }
635: } elsif ($Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
636: $status = 'CANNOT_ANSWER';
637: }
638: if ($status eq 'CANNOT_ANSWER'
639: && &show_answer_problem_status()) {
640: $status = 'SHOW_ANSWER';
641: }
642: }
643: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
644: my @interval=&Apache::lonnet::EXT("resource.$id.interval",$symb);
645: &Apache::lonxml::debug("looking for interval @interval");
646: if ($interval[0]=~ /^\d+/) {
647: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
648: &Apache::lonxml::debug("looking for accesstime $first_access");
649: if (!$first_access) {
650: $status='NOT_YET_VIEWED';
651: my $due_date = &due_date($id,$symb);
652: my $seconds_left = $due_date - time;
653: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
654: if ($seconds_left > $timelimit || $due_date eq '') {
655: $seconds_left = $timelimit;
656: }
657: $datemsg=&seconds_to_human_length($seconds_left);
658: }
659: }
660: }
661:
662: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
663: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
664: # return ('UNCHECKEDOUT','needs to be checked out');
665: #}
666:
667: &Apache::lonxml::debug("sending back :$status:$datemsg:");
668: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
669: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
670: $status='CAN_ANSWER';
671: $datemsg=&mt('is closed but you are allowed to view it');
672: }
673:
674: return ($status,$datemsg);
675: }
676: # this should work exactly like the copy in lonnavmaps.pm
677: sub due_date {
678: my ($part_id,$symb,$udom,$uname)=@_;
679: my $date;
680: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
681: $udom,$uname);
682: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
683: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
684: $udom,$uname);
685: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
686: if ($interval[0] =~ /\d+/) {
687: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
688: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
689: if (defined($first_access)) {
690: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
691: my $interval = $first_access+$timelimit;
692: $date = (!$due_date || $interval < $due_date) ? $interval
693: : $due_date;
694: } else {
695: $date = $due_date;
696: }
697: } else {
698: $date = $due_date;
699: }
700: return $date;
701: }
702:
703: sub seconds_to_human_length {
704: my ($length)=@_;
705:
706: my $seconds=$length%60; $length=int($length/60);
707: my $minutes=$length%60; $length=int($length/60);
708: my $hours=$length%24; $length=int($length/24);
709: my $days=$length;
710:
711: my $timestr;
712: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
713: if ($hours > 0) { $timestr.=($timestr?", ":"").
714: &mt('[quant,_1,hour]',$hours); }
715: if ($minutes > 0) { $timestr.=($timestr?", ":"").
716: &mt('[quant,_1,minute]',$minutes); }
717: if ($seconds > 0) { $timestr.=($timestr?", ":"").
718: &mt('[quant,_1,second]',$seconds); }
719: return $timestr;
720: }
721:
722: sub showhash {
723: my (%hash) = @_;
724: &showhashsubset(\%hash,'.');
725: return '';
726: }
727:
728: sub showarray {
729: my ($array)=@_;
730: my $string="(";
731: foreach my $elm (@{ $array }) {
732: if (ref($elm) eq 'ARRAY') {
733: $string.=&showarray($elm);
734: } elsif (ref($elm) eq 'HASH') {
735: $string.= "HASH --- \n<br />";
736: $string.= &showhashsubset($elm,'.');
737: } else {
738: $string.="$elm,"
739: }
740: }
741: chop($string);
742: $string.=")";
743: return $string;
744: }
745:
746: sub showhashsubset {
747: my ($hash,$keyre) = @_;
748: my $resultkey;
749: foreach $resultkey (sort(keys(%$hash))) {
750: if ($resultkey !~ /$keyre/) { next; }
751: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
752: &Apache::lonxml::debug("$resultkey ---- ".
753: &showarray($$hash{$resultkey}));
754: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
755: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
756: &showhashsubset($$hash{$resultkey},'.');
757: } else {
758: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
759: }
760: }
761: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
762: return '';
763: }
764:
765: sub setuppermissions {
766: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
767: unless ($Apache::lonhomework::browse eq 'F') {
768: $Apache::lonhomework::browse=&Apache::lonnet::allowed('bro',$env{'request.filename'});
769: }
770: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
771: if (! $viewgrades &&
772: exists($env{'request.course.sec'}) &&
773: $env{'request.course.sec'} !~ /^\s*$/) {
774: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
775: '/'.$env{'request.course.sec'});
776: }
777: $Apache::lonhomework::viewgrades = $viewgrades;
778:
779: if ($Apache::lonhomework::browse eq 'F' &&
780: $env{'form.devalidatecourseresdata'} eq 'on') {
781: my (undef,$courseid) = &Apache::lonnet::whichuser();
782: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
783: $env{"course.$courseid.domain"});
784: }
785:
786: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
787: if (! $modifygrades &&
788: exists($env{'request.course.sec'}) &&
789: $env{'request.course.sec'} !~ /^\s*$/) {
790: $modifygrades =
791: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
792: '/'.$env{'request.course.sec'});
793: }
794: $Apache::lonhomework::modifygrades = $modifygrades;
795:
796: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
797: if (! $queuegrade &&
798: exists($env{'request.course.sec'}) &&
799: $env{'request.course.sec'} !~ /^\s*$/) {
800: $queuegrade =
801: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
802: '/'.$env{'request.course.sec'});
803: }
804: $Apache::lonhomework::queuegrade = $queuegrade;
805: return '';
806: }
807:
808: sub unset_permissions {
809: undef($Apache::lonhomework::queuegrade);
810: undef($Apache::lonhomework::modifygrades);
811: undef($Apache::lonhomework::viewgrades);
812: undef($Apache::lonhomework::browse);
813: }
814:
815: sub setupheader {
816: my $request=$_[0];
817: &Apache::loncommon::content_type($request,'text/html');
818: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
819: &Apache::loncommon::no_cache($request);
820: }
821: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
822: # 'lastrevisiondate'));
823: $request->send_http_header;
824: return OK if $request->header_only;
825: return ''
826: }
827:
828: sub handle_save_or_undo {
829: my ($request,$problem,$result,$getobjref) = @_;
830:
831: my $file = &Apache::lonnet::filelocation("",$request->uri);
832: my $filebak =$file.".bak";
833: my $filetmp =$file.".tmp";
834: my $error=0;
835: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
836: my $error=0;
837: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
838: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
839: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
840: if (!$error) {
841: &Apache::lonxml::info("<p><b>".
842: &mt("Undid changes, Switched [_1] and [_2]",
843: '<span class="LC_filename">'.$filebak.
844: '</span>',
845: '<span class="LC_filename">'.$file.
846: '</span>')."</b></p>");
847: } else {
848: &Apache::lonxml::info("<p><span class=\"LC_error\">".
849: &mt("Unable to undo, unable to switch [_1] and [_2]",
850: '<span class="LC_filename">'.
851: $filebak.'</span>',
852: '<span class="LC_filename">'.
853: $file.'</span>')."</span></p>");
854: $error=1;
855: }
856: } else {
857: &Apache::lonnet::correct_line_ends($result);
858:
859: my $fs=Apache::File->new(">$filebak");
860: if (defined($fs)) {
861: print $fs $$problem;
862: } else {
863: &Apache::lonxml::info("<span class=\"LC_error\">".
864: &mt("Unable to make backup [_1]",
865: '<span class="LC_filename">'.
866: $filebak.'</span>')."</span>");
867: $error=2;
868: }
869: my $fh=Apache::File->new(">$file");
870: if (defined($fh)) {
871: print $fh $$result;
872: if (ref($getobjref) eq 'SCALAR') {
873: if ($file =~ m{([^/]+)\.(html?)$}) {
874: my $fname = $1;
875: my $ext = $2;
876: my $path = $file;
877: $path =~ s/\Q$fname\E\.\Q$ext\E$//;
878: my (%allfiles,%codebase);
879: &Apache::lonnet::extract_embedded_items($file,\%allfiles,
880: \%codebase,$result);
881: if (keys(%allfiles) > 0) {
882: my $url = $request->uri;
883: my $state = <<STATE;
884: <input type="hidden" name="action" value="upload_embedded" />
885: <input type="hidden" name="url" value="$url" />
886: STATE
887: $$getobjref = "<h3>".&mt("Reference Warning")."</h3>".
888: "<p>".&mt("Completed upload of the file. This file contained references to other files.")."</p>".
889: "<p>".&mt("Please select the locations from which the referenced files are to be uploaded.")."</p>".
890: &Apache::loncommon::ask_for_embedded_content($url,$state,\%allfiles,\%codebase,
891: {'error_on_invalid_names' => 1,
892: 'ignore_remote_references' => 1,});
893: }
894: }
895: }
896: } else {
897: &Apache::lonxml::info('<span class="LC_error">'.
898: &mt("Unable to write to [_1]",
899: '<span class="LC_filename">'.
900: $file.'</span>').
901: '</span>');
902: $error|=4;
903: }
904: }
905: return $error;
906: }
907:
908: sub analyze_header {
909: my ($request) = @_;
910: my $js = &Apache::structuretags::setmode_javascript();
911:
912: # Breadcrumbs
913: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
914: 'text' => 'Authoring Space'},
915: {'href' => '',
916: 'text' => 'Problem Testing'},
917: {'href' => '',
918: 'text' => 'Analyzing a problem'}];
919:
920: my $result =
921: &Apache::loncommon::start_page('Analyzing a problem',
922: $js,
923: {'bread_crumbs' => $brcrum,})
924: .&Apache::loncommon::head_subbox(
925: &Apache::loncommon::CSTR_pageheader());
926: $result .=
927: '<form name="lonhomework" method="post" action="'.
928: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
929: '<input type="hidden" name="problemmode" value="'.
930: $env{'form.problemmode'}.'" />'.
931: &Apache::structuretags::remember_problem_state().'
932: <div class="LC_edit_problem_analyze_header">
933: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
934: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
935: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
936: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
937: <hr />
938: <input type="button" name="submitmode" value="'.&mt("View").'" '.
939: 'onclick="javascript:setmode(this.form,'."'view'".')" />
940: <hr />
941: </div>'
942: .&Apache::lonxml::message_location().
943: '</form>';
944: &Apache::lonxml::add_messages(\$result);
945: $request->print($result);
946: $request->rflush();
947: }
948:
949: sub analyze_footer {
950: my ($request) = @_;
951: $request->print(&Apache::loncommon::end_page());
952: $request->rflush();
953: }
954:
955: sub analyze {
956: my ($request,$file) = @_;
957: &Apache::lonxml::debug("Analyze");
958: my $result;
959: my %overall;
960: my %seedexample;
961: my %allparts;
962: my $rndseed=$env{'form.rndseed'};
963: &analyze_header($request);
964: my %prog_state=
965: &Apache::lonhtmlcommon::Create_PrgWin($request,$env{'form.numtoanalyze'});
966: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
967: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,'last problem');
968: if (&Apache::loncommon::connection_aborted($request)) { return; }
969: my $thisseed=$i+$rndseed;
970: my $subresult=&Apache::lonnet::ssi($request->uri,
971: ('grade_target' => 'analyze'),
972: ('rndseed' => $thisseed));
973: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
974: my %analyze=&Apache::lonnet::str2hash($subresult);
975: my @parts;
976: if (ref($analyze{'parts'}) eq 'ARRAY') {
977: @parts=@{ $analyze{'parts'} };
978: }
979: foreach my $part (@parts) {
980: if (!exists($allparts{$part})) {$allparts{$part}=1;};
981: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
982: $analyze{$part.'.type'} eq 'stringresponse' ||
983: $analyze{$part.'.type'} eq 'formularesponse' ) {
984: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
985: my $i=0;
986: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
987: push( @{ $overall{$part.'.answer'}[$i] },
988: $answer_part);
989: my $concatanswer= join("\0",@{ $answer_part });
990: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
991: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
992: }
993: $seedexample{join("\0",$part,$i,@{$answer_part})}=
994: $thisseed;
995: $i++;
996: }
997: }
998: if (!keys(%{ $analyze{$part.'.answer'} })) {
999: my $answer_part =
1000: ['<span class="LC_error">'.&mt('Error').'</span>'];
1001: $seedexample{join("\0",$part,0,@{$answer_part})}=
1002: $thisseed;
1003: push( @{ $overall{$part.'.answer'}[0] },
1004: $answer_part);
1005: }
1006: }
1007: }
1008: }
1009: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,&mt('Analyzing Results'));
1010: $request->print('<hr />'
1011: .'<h3>'
1012: .&mt('List of possible answers')
1013: .'</h3>'
1014: );
1015: foreach my $part (sort(keys(%allparts))) {
1016: if ((ref($overall{$part.'.answer'}) eq 'ARRAY') &&
1017: (@{$overall{$part.'.answer'}} > 0)) {
1018: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
1019: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1020: $request->print(&Apache::loncommon::start_data_table()
1021: .&Apache::loncommon::start_data_table_header_row()
1022: .'<th colspan="'.($num_cols+1).'">'
1023: .&mt('Part').' '.$part
1024: );
1025: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1026: $request->print(' '.&mt('Answer [_1]',$i+1));
1027: }
1028: $request->print('</th>'
1029: .&Apache::loncommon::end_data_table_header_row()
1030: );
1031: my %frequency;
1032: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
1033: $frequency{join("\0",@{ $answer })}++;
1034: }
1035: $request->print(&Apache::loncommon::start_data_table_header_row()
1036: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
1037: .'<th>'.&mt('Frequency').'<br />'
1038: .'('.&mt('click for example').')</th>'
1039: .&Apache::loncommon::end_data_table_header_row()
1040: );
1041: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1042: $request->print(&Apache::loncommon::start_data_table_row()
1043: .'<td>'
1044: .join('</td><td>',split("\0",$answer))
1045: .'</td>'
1046: .'<td>'
1047: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
1048: .'</td>'
1049: .&Apache::loncommon::end_data_table_row()
1050: );
1051: }
1052: $request->print(&Apache::loncommon::end_data_table());
1053: }
1054: } else {
1055: $request->print('<p class="LC_warning">'
1056: .&mt('Response [_1] is not analyzable at this time.',$part)
1057: .'</p>'
1058: );
1059: }
1060: }
1061: if (scalar(keys(%allparts)) == 0 ) {
1062: $request->print('<p class="LC_warning">'
1063: .&mt('Found no analyzable responses in this problem.'
1064: .' Currently only Numerical, Formula and String response styles are supported.')
1065: .'</p>'
1066: );
1067: }
1068: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1069: &analyze_footer($request);
1070: &Apache::lonhomework::showhash(%overall);
1071: return $result;
1072: }
1073:
1074: {
1075: my $show_problem_status;
1076: sub reset_show_problem_status {
1077: undef($show_problem_status);
1078: }
1079:
1080: sub set_show_problem_status {
1081: my ($new_status) = @_;
1082: $show_problem_status = lc($new_status);
1083: }
1084:
1085: sub hide_problem_status {
1086: return ($show_problem_status eq 'no'
1087: || $show_problem_status eq 'no_feedback_ever');
1088: }
1089:
1090: sub show_problem_status {
1091: return ($show_problem_status eq 'yes'
1092: || $show_problem_status eq 'answer'
1093: || $show_problem_status eq '');
1094: }
1095:
1096: sub show_some_problem_status {
1097: return ($show_problem_status eq 'no');
1098: }
1099:
1100: sub show_no_problem_status {
1101: return ($show_problem_status eq 'no_feedback_ever');
1102: }
1103:
1104: sub show_answer_problem_status {
1105: return ($show_problem_status eq 'answer');
1106: }
1107: }
1108:
1109: sub editxmlmode {
1110: my ($request,$file) = @_;
1111: my $result;
1112: my $problem=&Apache::lonnet::getfile($file);
1113: if ($problem eq -1) {
1114: &Apache::lonxml::error(
1115: '<p class="LC_error">'
1116: .&mt('Unable to find [_1]',
1117: '<span class="LC_filename">'.$file.'</span>')
1118: .'</p>');
1119:
1120: $problem='';
1121: }
1122: if (($env{'form.problemmode'} eq 'saveeditxml') ||
1123: ($env{'form.problemmode'} eq 'saveviewxml') ||
1124: ($env{'form.problemmode'} eq 'undoxml')) {
1125: my $error=&handle_save_or_undo($request,\$problem,
1126: \$env{'form.editxmltext'});
1127: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
1128: }
1129: &Apache::lonhomework::showhashsubset(\%env,'^form');
1130: if ($env{'form.problemmode'} eq 'saveviewxml') {
1131: &Apache::lonhomework::showhashsubset(\%env,'^form');
1132: $env{'form.problemmode'}='view';
1133: &renderpage($request,$file);
1134: } else {
1135: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1136: if ($cols > 80) { $cols = 80; }
1137: if ($cols < 70) { $cols = 70; }
1138: if ($rows < 20) { $rows = 20; }
1139: my $js =
1140: &Apache::edit::js_change_detection().
1141: &Apache::loncommon::resize_textarea_js().
1142: &Apache::structuretags::setmode_javascript().
1143: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1144:
1145: # Breadcrumbs
1146: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1147: 'text' => 'Authoring Space'},
1148: {'href' => '',
1149: 'text' => 'Problem Editing'}];
1150:
1151: my $start_page =
1152: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
1153: {'no_auto_mt_title' => 1,
1154: 'only_body' => 0,
1155: 'add_entries' => {
1156: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1157: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1158: },
1159: 'bread_crumbs' => $brcrum,
1160: });
1161:
1162: $result=$start_page
1163: .&Apache::loncommon::head_subbox(
1164: &Apache::loncommon::CSTR_pageheader());
1165: $result.=&renderpage($request,$file,['no_output_web'],1).
1166: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1167: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1168: &Apache::structuretags::remember_problem_state().'
1169: <div class="LC_edit_problem_header">
1170: <div class="LC_edit_problem_header_title">'.
1171: &mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').
1172: '</div><div class="LC_edit_actionbar" id="actionbar">';
1173:
1174: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
1175: &Apache::structuretags::problem_edit_buttons('editxml');
1176: $result.='<div>';
1177:
1178: $result .= '<ol class="LC_primary_menu" style="display:inline-block;font-size:90%;vertical-align:middle;">';
1179:
1180: unless ($env{'environment.nocodemirror'}) {
1181: # dropdown menus
1182: $result .= Apache::lonmenu::create_submenu("#", "",
1183: &mt("Problem Templates"), template_dropdown_datastructure());
1184:
1185: $result .= Apache::lonmenu::create_submenu("#", "",
1186: &mt("Response Types"), responseblock_dropdown_datastructure());
1187:
1188: $result .= Apache::lonmenu::create_submenu("#", "",
1189: &mt("Conditional Blocks"), conditional_scripting_datastructure());
1190:
1191: $result .= Apache::lonmenu::create_submenu("#", "",
1192: &mt("Miscellaneous"), misc_datastructure());
1193: }
1194:
1195: $result .= Apache::lonmenu::create_submenu("#", "",
1196: &mt("Help") . ' <img src="/adm/help/help.png" alt="' . &mt("Help") .
1197: '" style="vertical-align:text-bottom; height: auto; margin:0; "/>',
1198: helpmenu_datastructure(),"");
1199:
1200: $result.="</ol></div>";
1201:
1202: $result .= '</div></div>' .
1203: &Apache::lonxml::message_location() .
1204: &Apache::loncommon::xmleditor_js() .
1205: '<textarea ' . &Apache::edit::element_change_detection() .
1206: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" ' .
1207: ' name="editxmltext" id="LC_editxmltext">' .
1208: &HTML::Entities::encode($problem,'<>&"') .
1209: '</textarea> <div id="LC_aftertextarea"> </div> </form>';
1210:
1211: my $resource = $env{'request.ambiguous'};
1212: unless($env{'environment.nocodemirror'}){
1213: $result .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined-xml.css">
1214: <script src="/adm/codemirror/codemirror-compressed-xml.js"></script>
1215: <script>
1216: CodeMirror.defineMode("mixedmode", function(config) {
1217: return CodeMirror.multiplexingMode(
1218: CodeMirror.getMode(config, "xml"),
1219: {
1220: open: "\<script type=\"loncapa/perl\"\>", close: "\</script\>",
1221: mode: CodeMirror.getMode(config, "perl"),
1222: delimStyle: "tag",
1223: }
1224: );
1225: });
1226: var cm = CodeMirror.fromTextArea(document.getElementById("LC_editxmltext"),
1227: {
1228: mode: "mixedmode",
1229: lineWrapping: true,
1230: lineNumbers: true,
1231: tabSize: 4,
1232: indentUnit: 4,
1233:
1234: autoCloseTags: true,
1235: autoCloseBrackets: true,
1236: height: "auto",
1237: styleActiveLine: true,
1238:
1239: extraKeys: {
1240: "Tab": "indentMore",
1241: "Shift-Tab": "indentLess",
1242: }
1243: });
1244: restoreScrollPosition("'.$resource.'");
1245: </script>';
1246: }
1247:
1248: $result .= &Apache::loncommon::end_page();
1249: &Apache::lonxml::add_messages(\$result);
1250: $request->print($result);
1251: }
1252: return '';
1253: }
1254:
1255: #
1256: # Render the page in whatever target desired.
1257: #
1258: sub renderpage {
1259: my ($request,$file,$targets,$return_string,$donebuttonmsg) = @_;
1260:
1261: my @targets = @{$targets || [&get_target()]};
1262: &Apache::lonhomework::showhashsubset(\%env,'form.');
1263: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1264:
1265: my $overall_result;
1266: foreach my $target (@targets) {
1267: # FIXME need to do something intelligent when a problem goes
1268: # from viewable to not viewable due to map conditions
1269: #&setuppermissions();
1270: #if ( $Apache::lonhomework::browse ne '2'
1271: # && $Apache::lonhomework::browse ne 'F' ) {
1272: # $request->print(" You most likely shouldn't see me.");
1273: #}
1274: #my $t0 = [&gettimeofday()];
1275: my $output=1;
1276: if ($target eq 'no_output_web') {
1277: $target = 'web'; $output=0;
1278: }
1279: my $problem=&Apache::lonnet::getfile($file);
1280: my $result;
1281: if ($problem eq -1) {
1282: $problem='';
1283: my $filename=(split('/',$file))[-1];
1284: my $error =
1285: '<p class="LC_error">'
1286: .&mt('Unable to find [_1]',
1287: '<span class="LC_filename">'.$filename.'</span>')
1288: ."</p>";
1289: $result.=
1290: &Apache::loncommon::simple_error_page($request,'Not available',
1291: $error,{'no_auto_mt_msg' => 1});
1292: return;
1293: }
1294:
1295: my %mystyle;
1296: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1297: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1298: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1299:
1300: &Apache::lonxml::debug("Should be parsing now");
1301: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1302: &setup_vars($target),%mystyle);
1303: &finished_parsing();
1304: if (!$output) { $result = ''; }
1305: #$request->print("Result follows:");
1306: if ($target eq 'modified') {
1307: &handle_save_or_undo($request,\$problem,\$result);
1308: } else {
1309: if ($target eq 'analyze') {
1310: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1311: undef(%Apache::lonhomework::analyze);
1312: } elsif ($target eq 'web') {
1313: if ($donebuttonmsg) {
1314: $result =~ s{</body>}{};
1315: $result.= &Apache::loncommon::confirmwrapper(&Apache::lonhtmlcommon::confirm_success($donebuttonmsg,1))."\n</body>";
1316: }
1317: }
1318: #my $td=&tv_interval($t0);
1319: #if ( $Apache::lonxml::debug) {
1320: #$result =~ s:</body>::;
1321: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1322: #}
1323: # $request->print($result);
1324: $overall_result.=$result;
1325: # $request->rflush();
1326: }
1327: #$request->print(":Result ends");
1328: #my $td=&tv_interval($t0);
1329: }
1330: if (!$return_string) {
1331: &Apache::lonxml::add_messages(\$overall_result);
1332: $request->print($overall_result);
1333: $request->rflush();
1334: } else {
1335: return $overall_result;
1336: }
1337: }
1338:
1339: sub finished_parsing {
1340: undef($Apache::lonhomework::parsing_a_problem);
1341: undef($Apache::lonhomework::parsing_a_task);
1342: }
1343:
1344: # function extracted from get_template_html
1345: # returns "key" -> list
1346: # key: path of template
1347: # value 1: title
1348: # value 2: category
1349: # value 3: name of help topic ???
1350: sub get_template_list{
1351: my ($extension) = @_;
1352:
1353: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1354: '/templates/*.'.$extension);
1355: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1356: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1357: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1358: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1359: return @files;
1360: }
1361:
1362: sub get_template_html {
1363: my ($extension) = @_;
1364: my $result;
1365: my @allnames;
1366: &Apache::lonxml::debug("Looking for :$extension:");
1367: my $glob_extension = $extension;
1368: if ($extension eq 'survey' || $extension eq 'exam') {
1369: $glob_extension = 'problem';
1370: }
1371: my @files = &get_template_list($extension);
1372: my ($midpoint,$seconddiv,$numfiles);
1373: my @noexamplelink = ('blank.problem','blank.library','script.library');
1374: $numfiles = 0;
1375: foreach my $file (@files) {
1376: next if ($file->[1] !~ /\S/);
1377: $numfiles ++;
1378: }
1379: if ($numfiles > 0) {
1380: $result = '<div class="LC_left_float">';
1381: $midpoint = int($numfiles/2);
1382: if ($numfiles%2) {
1383: $midpoint ++;
1384: }
1385: }
1386: my $count = 0;
1387: my $currentcategory='';
1388: my $first = 1;
1389: my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
1390: foreach my $file (@files) {
1391: next if ($file->[1] !~ /\S/);
1392: if ($file->[2] ne $currentcategory) {
1393: $currentcategory=$file->[2];
1394: if ((!$seconddiv) && ($count >= $midpoint)) {
1395: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1396: $seconddiv = 1;
1397: } elsif (!$first) {
1398: $result.='</div>'."\n";
1399: } else {
1400: $first = 0;
1401: }
1402: $result.= '<div class="LC_Box">'."\n"
1403: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1404: $count++;
1405: }
1406: $result .=
1407: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1408: $file->[1].'</label>';
1409: if ($file->[3]) {
1410: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1411: }
1412: # Provide example link
1413: my $filename=$file->[0];
1414: $filename=~s{^\Q$londocroot\E}{};
1415: if (!(grep($filename =~ /\Q$_\E$/,@noexamplelink))) {
1416: $result .= ' <span class="LC_fontsize_small">'
1417: .&Apache::loncommon::modal_link(
1418: $filename.'?inhibitmenu=yes',&mt('Example'),600,420,'sample')
1419: .'</span>';
1420: }
1421: $result .= '<br />'."\n";
1422: $count ++;
1423: }
1424: if ($numfiles > 0) {
1425: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1426: }
1427: return $result;
1428: }
1429:
1430: sub newproblem {
1431: my ($request) = @_;
1432:
1433: if ($env{'form.mode'} eq 'blank'){
1434: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1435: my $templatefilename =
1436: $request->dir_config('lonIncludes').'/templates/blank.problem';
1437: &File::Copy::copy($templatefilename,$dest);
1438: &renderpage($request,$dest);
1439: return;
1440: }
1441: my $errormsg;
1442: if ($env{'form.template'}) {
1443: my $file;
1444: my ($extension) = ($env{'form.template'} =~ /\.(\w+)$/);
1445: if ($extension) {
1446: my @files = &get_template_list($extension);
1447: foreach my $poss (@files) {
1448: if (ref($poss) eq 'ARRAY') {
1449: if ($env{'form.template'} eq $poss->[0]) {
1450: $file = $env{'form.template'};
1451: last;
1452: }
1453: }
1454: }
1455: if ($file) {
1456: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1457: &File::Copy::copy($file,$dest);
1458: &renderpage($request,$dest);
1459: return;
1460: } else {
1461: $errormsg = '<p class="LC_error">'.&mt('Invalid template file.').'</p>';
1462: }
1463: } else {
1464: $errormsg = '<p class="LC_error">'.&mt('Invalid template file; template needs to be a .problem, .library, or .task file.').'</p>';
1465: }
1466: }
1467:
1468: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1469: &Apache::lonxml::debug("Looking for :$extension:");
1470: my $templatelist=&get_template_html($extension);
1471: if ($env{'form.newfile'} && !$templatelist) {
1472: # no templates found
1473: my $templatefilename =
1474: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1475: &Apache::lonxml::debug("$templatefilename");
1476: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1477: &File::Copy::copy($templatefilename,$dest);
1478: &renderpage($request,$dest);
1479: } else {
1480: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1481: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1482: my $instructions;
1483: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1484: 'text' => 'Authoring Space'},
1485: {'href' => '',
1486: 'text' => "Create New $extension"}];
1487: my $start_page =
1488: &Apache::loncommon::start_page("Create New $extension",
1489: undef,
1490: {'bread_crumbs' => $brcrum,});
1491: $request->print(
1492: $start_page
1493: .&Apache::loncommon::head_subbox(
1494: &Apache::loncommon::CSTR_pageheader())
1495: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1496: $errormsg
1497: ".&mt("The requested file [_1] currently does not exist.",
1498: '<span class="LC_filename">'.$url.'</span>').'
1499: <p class="LC_info">
1500: '.&mt("To create a new $extension, select a template from the".
1501: " list below. Then click on the \"Create $extension\" button.").'
1502: </p><div><form action="'.$url.'" method="post">');
1503:
1504: if (defined($templatelist)) {
1505: $request->print($templatelist);
1506: }
1507: $request->print('<br /><input type="submit" name="newfile" value="'.
1508: &mt("Create $extension").'" />');
1509: $request->print('</form></div>'.&Apache::loncommon::end_page());
1510: }
1511: return;
1512: }
1513:
1514: sub update_construct_style {
1515: if ($env{'request.state'} eq "construct"
1516: && $env{'form.problemmode'} eq 'view'
1517: && defined($env{'form.submitted'})
1518: && !defined($env{'form.resetdata'})
1519: && !defined($env{'form.newrandomization'})) {
1520: if ((!$env{'form.style_file'} && $env{'construct.style'})
1521: ||$env{'form.clear_style_file'}) {
1522: &Apache::lonnet::delenv('construct.style');
1523: } elsif ($env{'form.style_file'}
1524: && $env{'construct.style'} ne $env{'form.style_file'}) {
1525: &Apache::lonnet::appenv({'construct.style' =>
1526: $env{'form.style_file'}});
1527: }
1528: }
1529: }
1530:
1531: #
1532: # Sets interval for current user so time left will be zero, either for the entire folder
1533: # containing the current resource, or just the resource, depending on value of first item
1534: # in interval array retrieved from EXT("resource.0.interval");
1535: #
1536: sub zero_timer {
1537: my ($symb) = @_;
1538: my ($hastimeleft,$first_access,$now);
1539: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
1540: if (@interval > 1) {
1541: if ($interval[1] eq 'course') {
1542: return ('fail',&mt('Ending of timed events not supported for intervals set course-wide'));
1543: } else {
1544: my $now = time;
1545: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
1546: if ($first_access > 0) {
1547: my ($timelimit,$donesuffix) = split(/_/,$interval[0],2);
1548: if ($donesuffix =~ /^done(?:|\:[^\:]+\:)(.*)$/) {
1549: my ($dummy,$proctor,$secret) = split(/_/,$1);
1550: if (($proctor) && ($secret ne '')) {
1551: my $key = $env{'form.LC_interval_done_proctorpass'};
1552: $key =~ s/^\s+//;
1553: $key =~ s/\s+$//;
1554: if ($env{'form.LC_interval_done_proctorpass'} ne $secret) {
1555: return ('fail',
1556: &mt('Incorrect key entered by proctor'));
1557: }
1558: }
1559: if ($first_access+$timelimit > $now) {
1560: my $done_time = $now - $first_access;
1561: my $snum = 1;
1562: if ($interval[1] eq 'map') {
1563: $snum = 2;
1564: }
1565: my $result =
1566: &Apache::lonparmset::storeparm_by_symb_inner($symb,'0_interval',
1567: $snum,$done_time,
1568: 'date_interval',
1569: $env{'user.name'},
1570: $env{'user.domain'});
1571: if ($result eq '') {
1572: # Record action in "User Notes"
1573: &Apache::lonmsg::store_instructor_comment(
1574: 'Pressed Done button for symb:<br />'.$symb,
1575: $env{'user.name'}, $env{'user.domain'});
1576: return ('ok');
1577: } else {
1578: return ('fail',&mt('Error ending timed event: [_1]',$result));
1579: }
1580: } else {
1581: return ('fail',&mt('Timed event already ended'));
1582: }
1583: } else {
1584: return ('fail',&mt('Timed event can not be ended before the time limit'));
1585: }
1586: } else {
1587: return ('fail',&mt('Timer not yet started for this timed event'));
1588: }
1589: }
1590: } else {
1591: return ('fail',&mt('No timer in use'));
1592: }
1593: return();
1594: }
1595:
1596: sub handler {
1597: #my $t0 = [&gettimeofday()];
1598: my $request=$_[0];
1599:
1600: $Apache::lonxml::request=$request;
1601: $Apache::lonxml::debug=$env{'user.debug'};
1602: $env{'request.uri'}=$request->uri;
1603: &setuppermissions();
1604:
1605: my $file=&Apache::lonnet::filelocation("",$request->uri);
1606:
1607: #check if we know where we are
1608: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread('','',1,1)) {
1609: # if we are browsing we might not be able to know where we are
1610: if ($Apache::lonhomework::browse ne 'F' &&
1611: $env{'request.state'} ne "construct") {
1612: #should know where we are, so ask
1613: &unset_permissions();
1614: $request->internal_redirect('/adm/ambiguous');
1615: return OK;
1616: }
1617: }
1618: if (&setupheader($request)) {
1619: &unset_permissions();
1620: return OK;
1621: }
1622:
1623: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1624: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1625: my ($symb) = &Apache::lonnet::whichuser();
1626: &Apache::lonxml::debug('symb is '.$symb);
1627: if ($env{'request.state'} eq "construct") {
1628: if ( -e $file ) {
1629: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1630: ['problemmode']);
1631: if (!(defined $env{'form.problemmode'})) {
1632: #first visit to problem in construction space
1633: $env{'form.problemmode'}= 'view';
1634: &renderpage($request,$file);
1635: } elsif (($env{'form.problemmode'} eq 'editxml') ||
1636: ($env{'form.problemmode'} eq 'saveeditxml') ||
1637: ($env{'form.problemmode'} eq 'saveviewxml') ||
1638: ($env{'form.problemmode'} eq 'undoxml')) {
1639: &editxmlmode($request,$file);
1640: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1641: &analyze($request,$file);
1642: } else {
1643: &update_construct_style();
1644: &renderpage($request,$file);
1645: }
1646: } else {
1647: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1648: ['mode']);
1649: # requested file doesn't exist in contruction space
1650: &newproblem($request);
1651: }
1652: } else {
1653: # Set the event timer to zero if the "done button" was clicked. The button is
1654: # part of the doneButton form created in lonmenu.pm
1655: my ($donebuttonresult,$donemsg);
1656: if ($symb && $env{'form.LC_interval_done'} eq 'true') {
1657: ($donebuttonresult,$donemsg) = &zero_timer($symb);
1658: undef($env{'form.LC_interval_done'});
1659: undef($env{'form.LC_interval_done_proctorpass'});
1660: }
1661: # just render the page normally outside of construction space
1662: &Apache::lonxml::debug("not construct");
1663: &renderpage($request,$file,undef,undef,$donemsg);
1664: }
1665: #my $td=&tv_interval($t0);
1666: #&Apache::lonxml::debug("Spent $td seconds processing");
1667: # always turn off debug messages
1668: $Apache::lonxml::debug=0;
1669: &unset_permissions();
1670: return OK;
1671:
1672: }
1673:
1674: sub template_dropdown_datastructure {
1675: # gathering the all templates and their path, title, category and help topic
1676: my @templates = get_template_list('problem');
1677: # template category => title
1678: my %tmplthash = ();
1679: # template title => path
1680: my %tmpltcontent = ();
1681:
1682: foreach my $template (@templates){
1683: # put in hash if the template is not empty
1684: unless ($template->[1] eq ''){
1685: push(@{$tmplthash{$template->[2]}}, $template->[1]);
1686: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
1687: }
1688: }
1689:
1690: my $catList = [];
1691: foreach my $cat (sort keys %tmplthash) {
1692: my $catItems = [];
1693: foreach my $title (sort @{$tmplthash{$cat}}) {
1694: my $path = $tmpltcontent{$title}->[0];
1695: my $code;
1696: open(FH, "<$path");
1697: while(<FH>){
1698: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
1699: }
1700: close(FH);
1701:
1702: if ($code ne '') {
1703: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code,'<>&"')) . '\')';
1704: my $currItem = [$href, $title, undef];
1705: push @{$catItems}, $currItem;
1706: }
1707: }
1708: push @{$catList}, [$catItems, $cat, undef];
1709: }
1710:
1711: return $catList;
1712: }
1713:
1714: sub responseblock_dropdown_datastructure {
1715:
1716: my $mathCat = [
1717: [
1718: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
1719: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
1720: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
1721: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
1722: ],
1723: &mt("Math"),
1724: undef
1725: ];
1726:
1727: my $miscCat = [
1728: [
1729: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
1730: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
1731: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
1732: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Two Lists"), undef],
1733: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N statements"), undef],
1734: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Select from Options"), undef],
1735: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
1736: ],
1737: &mt("Miscellaneous"),
1738: undef
1739: ];
1740:
1741: my $chemCat = [
1742: [
1743: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
1744: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Chemical Structure"), undef]
1745: ],
1746: &mt("Chemistry"),
1747: undef
1748: ];
1749:
1750: my $textCat = [
1751: [
1752: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
1753: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
1754: ],
1755: &mt("Text"),
1756: undef
1757: ];
1758:
1759: return [$mathCat, $miscCat, $chemCat, $textCat];
1760: }
1761:
1762:
1763: sub conditional_scripting_datastructure {
1764: # TODO: corresponding routines should be used for the javascript:insertText parts
1765: # instead of the placeholder routine default_xml_tag with the tags
1766: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
1767: # returns the corresponding content for this case
1768:
1769: #TODO translated is currently temporarily here, another solution should be found where the
1770: # needed string can be retrieved
1771:
1772: my $translatedTag = '
1773: <translated>
1774: <lang which="en"></lang>
1775: <lang which="default"></lang>
1776: </translated>';
1777: return [
1778: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Block"), undef],
1779: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
1780: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Date Block"), undef],
1781: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
1782: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
1783: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
1784: ];
1785: }
1786:
1787: sub misc_datastructure {
1788: return [
1789: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
1790: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
1791: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef],
1792: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
1793: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
1794: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
1795: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef],
1796: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("part"))) . "\')", &mt("Problem Part"), undef]
1797: ];
1798: }
1799:
1800: # helper routine for the datastructure building subroutines
1801: sub default_xml_tag {
1802: my ($tag) = @_;
1803: return "\n<$tag></$tag>";
1804: }
1805:
1806:
1807: sub helpmenu_datastructure {
1808:
1809: # filename, title, width, height
1810: my $helpers = [
1811: ['Problem_LON-CAPA_Functions.hlp', &mt('Script Functions'), 800, 600],
1812: ['Greek_Symbols.hlp', &mt('Greek Symbols'), 500, 600],
1813: ['Other_Symbols.hlp', &mt('Other Symbols'), 500, 600],
1814: ['Authoring_Output_Tags.hlp', &mt('Output Tags'), 800, 600],
1815: ['Authoring_Multilingual_Problems.hlp',
1816: &mt('How to create problems in different languages'), 800, 600],
1817: ['loncapa.html', &mt('Language reference'), 800, 600],
1818: ];
1819:
1820: my $help_structure = [];
1821:
1822: foreach my $count (0..(scalar(@{$helpers})-1)) {
1823: my $filename = $helpers->[$count]->[0];
1824: my $title = $helpers->[$count]->[1];
1825: my $width = $helpers->[$count]->[2];
1826: my $height = $helpers->[$count]->[3];
1827: if ($width eq '') {
1828: $width = 500;
1829: }
1830: if ($height eq '') {
1831: $height = 600;
1832: }
1833: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename',$width,$height,'yes');");
1834: push @{$help_structure}, [$href, $title, undef];
1835: }
1836:
1837: return $help_structure;
1838: }
1839:
1840: # we need substitution to not break javascript code
1841: sub convert_for_js {
1842: my $return = shift;
1843: $return =~ s|script|ESCAPEDSCRIPT|g;
1844: $return =~ s|\\|\\\\|g;
1845: $return =~ s|\n|\\r\\n|g;
1846: $return =~ s|'|\\'|g;
1847: $return =~ s|'|\\'|g;
1848: return $return;
1849: }
1850:
1851: 1;
1852: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonhomework.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework