1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Homework handler
3: #
4: # $Id: lonhomework.pm,v 1.366 2016/09/20 19:28:08 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') {
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 $slot_name) {
205: return 1;
206: }
207: }
208:
209: return 0;
210: }
211:
212: sub check_slot_access {
213: my ($id,$type,$symb,$partlist)=@_;
214:
215: # does it pass normal muster
216: my ($status,$datemsg)=&check_access($id,$symb);
217:
218: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
219: if ($useslots ne 'resource' && $useslots ne 'map'
220: && $useslots ne 'map_map') {
221: return ($status,$datemsg);
222: }
223:
224: my $checkin = 'resource.0.checkedin';
225: my $version;
226: if ($type eq 'Task') {
227: $version=$Apache::lonhomework::history{'resource.version'};
228: $checkin = "resource.$version.0.checkedin";
229: }
230: my $checkedin = $Apache::lonhomework::history{$checkin};
231: my ($returned_slot,$slot_name,$checkinslot,$ipused,$blockip,$now,$ip,
232: $consumed_uniq);
233: $now = time;
234: $ip=$ENV{'REMOTE_ADDR'} || $env{'request.host'};
235:
236: if ($checkedin) {
237: $checkinslot = $Apache::lonhomework::history{"$checkin.slot"};
238: my %slot=&Apache::lonnet::get_slot($checkinslot);
239: $consumed_uniq = $slot{'uniqueperiod'};
240: if ($slot{'iptied'}) {
241: $ipused = $Apache::lonhomework::history{"$checkin.ip"};
242: unless (($ip ne '') && ($ipused eq $ip)) {
243: $blockip = $slot{'iptied'};
244: $slot_name = $checkinslot;
245: $returned_slot = \%slot;
246: }
247: }
248: }
249:
250: if ($status eq 'SHOW_ANSWER') {
251: if ($blockip eq 'answer') {
252: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
253: } else {
254: return ($status,$datemsg);
255: }
256: }
257:
258: if ($status eq 'CLOSED' ||
259: $status eq 'INVALID_ACCESS' ||
260: $status eq 'UNAVAILABLE') {
261: return ($status,$datemsg);
262: }
263: if ($env{'request.state'} eq "construct") {
264: return ($status,$datemsg);
265: }
266:
267: if ($type eq 'Task') {
268: if ($checkedin &&
269: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
270: if ($blockip eq 'answer') {
271: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
272: } else {
273: return ('SHOW_ANSWER');
274: }
275: }
276: }
277:
278: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent",$symb);
279: my $available = &Apache::lonnet::EXT("resource.0.available",$symb);
280: my @slots= (split(':',$availablestudent),split(':',$available));
281:
282: # if (!@slots) {
283: # return ($status,$datemsg);
284: # }
285: undef($returned_slot);
286: undef($slot_name);
287: my $slotstatus='NOT_IN_A_SLOT';
288: my $num_usable_slots = 0;
289: if (!$symb) {
290: ($symb) = &Apache::lonnet::whichuser();
291: }
292: foreach my $slot (@slots) {
293: $slot =~ s/(^\s*|\s*$)//g;
294: &Apache::lonxml::debug("getting $slot");
295: my %slot=&Apache::lonnet::get_slot($slot);
296: &Apache::lonhomework::showhash(%slot);
297: next if ($slot{'endtime'} < $now);
298: $num_usable_slots ++;
299: if ($slot{'starttime'} < $now &&
300: $slot{'endtime'} > $now &&
301: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
302: if ($slot{'iptied'}) {
303: if ($env{'request.course.id'}) {
304: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
305: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
306: if ($slot eq $checkinslot) {
307: if ($ip eq $ipused) {
308: &Apache::lonxml::debug("$slot is good");
309: $slotstatus ='NEEDS_CHECKIN';
310: } else {
311: $slotstatus = 'NEED_DIFFERENT_IP';
312: $slot_name = $slot;
313: $returned_slot = \%slot;
314: last;
315: }
316: } elsif ($ip) {
317: my $uniqkey = "$slot\0$symb\0$ip";
318: my %used_ip = &Apache::lonnet::get('slot_uniqueips',[$uniqkey],$cdom,$cnum);
319: if ($used_ip{$uniqkey}) {
320: $slotstatus = 'NEED_DIFFERENT_IP';
321: } else {
322: &Apache::lonxml::debug("$slot is good");
323: $slotstatus ='NEEDS_CHECKIN';
324: }
325: }
326: }
327: } else {
328: &Apache::lonxml::debug("$slot is good");
329: $slotstatus='NEEDS_CHECKIN';
330: }
331: if ($slotstatus eq 'NEEDS_CHECKIN') {
332: $returned_slot=\%slot;
333: $slot_name=$slot;
334: last;
335: }
336: }
337: }
338: if ($slotstatus eq 'NEEDS_CHECKIN' &&
339: &proctor_checked_in($slot_name,$returned_slot,$type)) {
340: &Apache::lonxml::debug("proctor checked in");
341: $slotstatus=$status;
342: }
343:
344: my ($is_correct,$got_grade);
345: if ($type eq 'Task') {
346: my $version=$Apache::lonhomework::history{'resource.0.version'};
347: $got_grade =
348: ($Apache::lonhomework::history{"resource.$version.0.status"}
349: =~ /^(?:pass|fail)$/);
350: $is_correct =
351: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
352: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
353: } elsif ($type eq 'problem') {
354: if ((ref($partlist) eq 'ARRAY') && (@{$partlist} > 0)) {
355: my ($numcorrect,$numgraded) = (0,0);
356: foreach my $part (@{$partlist}) {
357: my $currtries = $Apache::lonhomework::history{"resource.$part.tries"};
358: my $maxtries = &Apache::lonnet::EXT("resource.$part.maxtries",$symb);
359: my $probstatus = &Apache::structuretags::get_problem_status($part);
360: my $earlyout;
361: unless (($probstatus eq 'no') ||
362: ($probstatus eq 'no_feedback_ever')) {
363: if ($Apache::lonhomework::history{"resource.$part.solved"} =~/^correct_/) {
364: $numcorrect ++;
365: } else {
366: $earlyout = 1;
367: }
368: }
369: if (($currtries == $maxtries) || ($is_correct)) {
370: $earlyout = 1;
371: } else {
372: $numgraded ++;
373: }
374: last if ($earlyout);
375: }
376: my $numparts = scalar(@{$partlist});
377: if ($numparts == $numcorrect) {
378: $is_correct = 1;
379: }
380: if ($numparts == $numgraded) {
381: $got_grade = 1;
382: }
383: } else {
384: my $currtries = $Apache::lonhomework::history{"resource.0.tries"};
385: my $maxtries = &Apache::lonnet::EXT("resource.0.maxtries",$symb);
386: my $probstatus = &Apache::structuretags::get_problem_status('0');
387: unless (($probstatus eq 'no') ||
388: ($probstatus eq 'no_feedback_ever')) {
389: $is_correct =
390: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
391: }
392: unless (($currtries == $maxtries) || ($is_correct)) {
393: $got_grade = 1;
394: }
395: }
396: }
397:
398: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
399:
400: # no slot is currently open, and has been checked in for this version
401: # but hasn't got a grade, therefore must be awaiting a grade
402: if (!defined($slot_name)
403: && $checkedin
404: && !$got_grade) {
405: return ('WAITING_FOR_GRADE');
406: }
407:
408: # Previously used slot is no longer open, and has been checked in for this version.
409: # However, the problem is not closed, and potentially, another slot might be
410: # used to gain access to it to work on it, until the due date is reached, and the
411: # problem then becomes CLOSED. Therefore return the slotstatus -
412: # (which will be one of: NOT_IN_A_SLOT, RESERVABLE, RESERVABLE_LATER, or NOTRESERVABLE).
413: if (!defined($slot_name) && $type eq 'problem') {
414: if ($slotstatus eq 'NOT_IN_A_SLOT') {
415: if (!$num_usable_slots) {
416: if ($env{'request.course.id'}) {
417: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
418: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
419: unless ($symb) {
420: ($symb)=&Apache::lonnet::whichuser();
421: }
422: $slotstatus = 'NOTRESERVABLE';
423: my ($reservable_now_order,$reservable_now,$reservable_future_order,
424: $reservable_future) =
425: &Apache::loncommon::get_future_slots($cnum,$cdom,$now,$symb);
426: if ((ref($reservable_now_order) eq 'ARRAY') && (ref($reservable_now) eq 'HASH')) {
427: if (@{$reservable_now_order} > 0) {
428: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
429: $slotstatus = 'RESERVABLE';
430: $datemsg = $reservable_now->{$reservable_now_order->[-1]}{'endreserve'};
431: } else {
432: my ($uniqstart,$uniqend,$useslot);
433: if (ref($consumed_uniq) eq 'ARRAY') {
434: ($uniqstart,$uniqend)=@{$consumed_uniq};
435: }
436: foreach my $slot (reverse(@{$reservable_now_order})) {
437: if ($reservable_now->{$slot}{'uniqueperiod'} =~ /^(\d+)\,(\d+)$/) {
438: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
439: next if (!
440: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
441: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
442: }
443: $useslot = $slot;
444: last;
445: }
446: if ($useslot) {
447: $slotstatus = 'RESERVABLE';
448: $datemsg = $reservable_now->{$useslot}{'endreserve'};
449: }
450: }
451: }
452: }
453: unless ($slotstatus eq 'RESERVABLE') {
454: if ((ref($reservable_future_order) eq 'ARRAY') && (ref($reservable_future) eq 'HASH')) {
455: if (@{$reservable_future_order} > 0) {
456: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
457: $slotstatus = 'RESERVABLE_LATER';
458: $datemsg = $reservable_future->{$reservable_future_order->[0]}{'startreserve'};
459: } else {
460: my ($uniqstart,$uniqend,$useslot);
461: if (ref($consumed_uniq) eq 'ARRAY') {
462: ($uniqstart,$uniqend)=@{$consumed_uniq};
463: }
464: foreach my $slot (@{$reservable_future_order}) {
465: if ($reservable_future->{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
466: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
467: next if (!
468: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
469: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
470: }
471: $useslot = $slot;
472: last;
473: }
474: if ($useslot) {
475: $slotstatus = 'RESERVABLE_LATER';
476: $datemsg = $reservable_future->{$useslot}{'startreserve'};
477: }
478: }
479: }
480: }
481: }
482: }
483: }
484: }
485: return ($slotstatus,$datemsg);
486: }
487:
488: if ($slotstatus eq 'NOT_IN_A_SLOT'
489: && $checkedin ) {
490:
491: if ($got_grade) {
492: if ($blockip eq 'answer') {
493: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
494: } else {
495: return ('SHOW_ANSWER');
496: }
497: } else {
498: return ('WAITING_FOR_GRADE');
499: }
500:
501: }
502:
503: if (($is_correct) && ($blockip ne 'answer')) {
504: if ($type eq 'problem') {
505: return ($status);
506: }
507: return ('SHOW_ANSWER');
508: }
509:
510: if ( $status eq 'CANNOT_ANSWER' &&
511: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT' &&
512: $slotstatus ne 'NEED_DIFFERENT_IP') ) {
513: return ($status,$datemsg);
514: }
515: return ($slotstatus,$datemsg,$slot_name,$returned_slot,$ipused);
516: }
517:
518: # JB, 9/24/2002: Any changes in this function may require a change
519: # in lonnavmaps::resource::getDateStatus.
520: sub check_access {
521: my ($id,$symb) = @_;
522: my $date ='';
523: my $status;
524: my $datemsg = '';
525: my $lastdate = '';
526: my $type;
527: my $passed;
528:
529: if ($env{'request.state'} eq "construct") {
530: if ($env{'form.problemstate'}) {
531: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
532: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
533: && &hide_problem_status())) {
534: return ('CANNOT_ANSWER',
535: &mt('is in this state due to author settings.'));
536: }
537: } else {
538: return ($env{'form.problemstate'},
539: &mt('is in this state due to author settings.'));
540: }
541: }
542: &Apache::lonxml::debug("in construction ignoring dates");
543: $status='CAN_ANSWER';
544: $datemsg=&mt('is in under construction');
545: # return ($status,$datemsg);
546: }
547:
548: &Apache::lonxml::debug("checking for part :$id:");
549: &Apache::lonxml::debug("time:".time);
550:
551: unless ($symb) {
552: ($symb)=&Apache::lonnet::whichuser();
553: }
554: &Apache::lonxml::debug("symb:".$symb);
555: #if ($env{'request.state'} ne "construct" && $symb ne '') {
556: if ($env{'request.state'} ne "construct") {
557: my $idacc = &Apache::lonnet::EXT("resource.$id.acc",$symb);
558: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
559: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
560: $status='INVALID_ACCESS';
561: $date=&mt("can not be accessed from your location.");
562: return($status,$date);
563: }
564: if ($env{'form.grade_imsexport'}) {
565: if (($env{'request.course.id'}) &&
566: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
567: return ('SHOW_ANSWER');
568: }
569: }
570: foreach my $temp ("opendate","duedate","answerdate") {
571: $lastdate = $date;
572: if ($temp eq 'duedate') {
573: $date = &due_date($id,$symb);
574: } else {
575: $date = &Apache::lonnet::EXT("resource.$id.$temp",$symb);
576: }
577:
578: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type",$symb);
579: if ($thistype =~ /^(con_lost|no_such_host)/ ||
580: $date =~ /^(con_lost|no_such_host)/) {
581: $status='UNAVAILABLE';
582: $date=&mt("may open later.");
583: return($status,$date);
584: }
585: if ($thistype eq 'date_interval') {
586: if ($temp eq 'opendate') {
587: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)-$date;
588: }
589: if ($temp eq 'answerdate') {
590: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)+$date;
591: }
592: }
593: &Apache::lonxml::debug("found :$date: for :$temp:");
594: if ($date eq '') {
595: $date = &mt("an unknown date"); $passed = 0;
596: } elsif ($date eq 'con_lost') {
597: $date = &mt("an indeterminate date"); $passed = 0;
598: } else {
599: if (time < $date) { $passed = 0; } else { $passed = 1; }
600: $date = &Apache::lonlocal::locallocaltime($date);
601: }
602: if (!$passed) { $type=$temp; last; }
603: }
604: &Apache::lonxml::debug("have :$type:$passed:");
605: if ($passed) {
606: $status='SHOW_ANSWER';
607: $datemsg=$date;
608: } elsif ($type eq 'opendate') {
609: $status='CLOSED';
610: $datemsg = &mt('will open on [_1]',$date);
611: } elsif ($type eq 'duedate') {
612: $status='CAN_ANSWER';
613: $datemsg = &mt('is due at [_1]',$date);
614: } elsif ($type eq 'answerdate') {
615: $status='CLOSED';
616: $datemsg = &mt('was due on [_1], and answers will be available on [_2]',
617: $lastdate,$date);
618: }
619: }
620: if ($status eq 'CAN_ANSWER' ||
621: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
622: #check #tries, and if correct.
623: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
624: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries",$symb);
625: if ( $tries eq '' ) { $tries = '0'; }
626: if ( $maxtries eq '' &&
627: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
628: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
629: # if (correct and show prob status) or excused then CANNOT_ANSWER
630: if ( ($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/)
631: && (&show_problem_status()) ) {
632: if (($Apache::lonhomework::history{"resource.$id.awarded"} >= 1) ||
633: (&Apache::lonnet::EXT("resource.$id.retrypartial",$symb) !~/^1|on|yes$/i)) {
634: $status = 'CANNOT_ANSWER';
635: }
636: } elsif ($Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
637: $status = 'CANNOT_ANSWER';
638: }
639: if ($status eq 'CANNOT_ANSWER'
640: && &show_answer_problem_status()) {
641: $status = 'SHOW_ANSWER';
642: }
643: }
644: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
645: my @interval=&Apache::lonnet::EXT("resource.$id.interval",$symb);
646: &Apache::lonxml::debug("looking for interval @interval");
647: if ($interval[0]=~ /^\d+/) {
648: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
649: &Apache::lonxml::debug("looking for accesstime $first_access");
650: if (!$first_access) {
651: $status='NOT_YET_VIEWED';
652: my $due_date = &due_date($id,$symb);
653: my $seconds_left = $due_date - time;
654: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
655: if ($seconds_left > $timelimit || $due_date eq '') {
656: $seconds_left = $timelimit;
657: }
658: $datemsg=&seconds_to_human_length($seconds_left);
659: }
660: }
661: }
662:
663: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
664: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
665: # return ('UNCHECKEDOUT','needs to be checked out');
666: #}
667:
668: &Apache::lonxml::debug("sending back :$status:$datemsg:");
669: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
670: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
671: $status='CAN_ANSWER';
672: $datemsg=&mt('is closed but you are allowed to view it');
673: }
674:
675: return ($status,$datemsg);
676: }
677: # this should work exactly like the copy in lonnavmaps.pm
678: sub due_date {
679: my ($part_id,$symb,$udom,$uname)=@_;
680: my $date;
681: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
682: $udom,$uname);
683: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
684: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
685: $udom,$uname);
686: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
687: if ($interval[0] =~ /\d+/) {
688: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
689: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
690: if (defined($first_access)) {
691: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
692: my $interval = $first_access+$timelimit;
693: $date = (!$due_date || $interval < $due_date) ? $interval
694: : $due_date;
695: } else {
696: $date = $due_date;
697: }
698: } else {
699: $date = $due_date;
700: }
701: return $date;
702: }
703:
704: sub seconds_to_human_length {
705: my ($length)=@_;
706:
707: my $seconds=$length%60; $length=int($length/60);
708: my $minutes=$length%60; $length=int($length/60);
709: my $hours=$length%24; $length=int($length/24);
710: my $days=$length;
711:
712: my $timestr;
713: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
714: if ($hours > 0) { $timestr.=($timestr?", ":"").
715: &mt('[quant,_1,hour]',$hours); }
716: if ($minutes > 0) { $timestr.=($timestr?", ":"").
717: &mt('[quant,_1,minute]',$minutes); }
718: if ($seconds > 0) { $timestr.=($timestr?", ":"").
719: &mt('[quant,_1,second]',$seconds); }
720: return $timestr;
721: }
722:
723: sub showhash {
724: my (%hash) = @_;
725: &showhashsubset(\%hash,'.');
726: return '';
727: }
728:
729: sub showarray {
730: my ($array)=@_;
731: my $string="(";
732: foreach my $elm (@{ $array }) {
733: if (ref($elm) eq 'ARRAY') {
734: $string.=&showarray($elm);
735: } elsif (ref($elm) eq 'HASH') {
736: $string.= "HASH --- \n<br />";
737: $string.= &showhashsubset($elm,'.');
738: } else {
739: $string.="$elm,"
740: }
741: }
742: chop($string);
743: $string.=")";
744: return $string;
745: }
746:
747: sub showhashsubset {
748: my ($hash,$keyre) = @_;
749: my $resultkey;
750: foreach $resultkey (sort(keys(%$hash))) {
751: if ($resultkey !~ /$keyre/) { next; }
752: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
753: &Apache::lonxml::debug("$resultkey ---- ".
754: &showarray($$hash{$resultkey}));
755: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
756: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
757: &showhashsubset($$hash{$resultkey},'.');
758: } else {
759: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
760: }
761: }
762: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
763: return '';
764: }
765:
766: sub setuppermissions {
767: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
768: unless ($Apache::lonhomework::browse eq 'F') {
769: $Apache::lonhomework::browse=&Apache::lonnet::allowed('bro',$env{'request.filename'});
770: }
771: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
772: if (! $viewgrades &&
773: exists($env{'request.course.sec'}) &&
774: $env{'request.course.sec'} !~ /^\s*$/) {
775: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
776: '/'.$env{'request.course.sec'});
777: }
778: $Apache::lonhomework::viewgrades = $viewgrades;
779:
780: if ($Apache::lonhomework::browse eq 'F' &&
781: $env{'form.devalidatecourseresdata'} eq 'on') {
782: my (undef,$courseid) = &Apache::lonnet::whichuser();
783: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
784: $env{"course.$courseid.domain"});
785: }
786:
787: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
788: if (! $modifygrades &&
789: exists($env{'request.course.sec'}) &&
790: $env{'request.course.sec'} !~ /^\s*$/) {
791: $modifygrades =
792: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
793: '/'.$env{'request.course.sec'});
794: }
795: $Apache::lonhomework::modifygrades = $modifygrades;
796:
797: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
798: if (! $queuegrade &&
799: exists($env{'request.course.sec'}) &&
800: $env{'request.course.sec'} !~ /^\s*$/) {
801: $queuegrade =
802: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
803: '/'.$env{'request.course.sec'});
804: }
805: $Apache::lonhomework::queuegrade = $queuegrade;
806: return '';
807: }
808:
809: sub unset_permissions {
810: undef($Apache::lonhomework::queuegrade);
811: undef($Apache::lonhomework::modifygrades);
812: undef($Apache::lonhomework::viewgrades);
813: undef($Apache::lonhomework::browse);
814: }
815:
816: sub setupheader {
817: my $request=$_[0];
818: &Apache::loncommon::content_type($request,'text/html');
819: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
820: &Apache::loncommon::no_cache($request);
821: }
822: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
823: # 'lastrevisiondate'));
824: $request->send_http_header;
825: return OK if $request->header_only;
826: return ''
827: }
828:
829: sub handle_save_or_undo {
830: my ($request,$problem,$result,$getobjref) = @_;
831:
832: my $file = &Apache::lonnet::filelocation("",$request->uri);
833: my $filebak =$file.".bak";
834: my $filetmp =$file.".tmp";
835: my $error=0;
836: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
837: my $error=0;
838: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
839: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
840: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
841: if (!$error) {
842: &Apache::lonxml::info("<p><b>".
843: &mt("Undid changes, Switched [_1] and [_2]",
844: '<span class="LC_filename">'.$filebak.
845: '</span>',
846: '<span class="LC_filename">'.$file.
847: '</span>')."</b></p>");
848: } else {
849: &Apache::lonxml::info("<p><span class=\"LC_error\">".
850: &mt("Unable to undo, unable to switch [_1] and [_2]",
851: '<span class="LC_filename">'.
852: $filebak.'</span>',
853: '<span class="LC_filename">'.
854: $file.'</span>')."</span></p>");
855: $error=1;
856: }
857: } else {
858: &Apache::lonnet::correct_line_ends($result);
859:
860: my $fs=Apache::File->new(">$filebak");
861: if (defined($fs)) {
862: print $fs $$problem;
863: } else {
864: &Apache::lonxml::info("<span class=\"LC_error\">".
865: &mt("Unable to make backup [_1]",
866: '<span class="LC_filename">'.
867: $filebak.'</span>')."</span>");
868: $error=2;
869: }
870: my $fh=Apache::File->new(">$file");
871: if (defined($fh)) {
872: print $fh $$result;
873: if (ref($getobjref) eq 'SCALAR') {
874: if ($file =~ m{([^/]+)\.(html?)$}) {
875: my $fname = $1;
876: my $ext = $2;
877: my $path = $file;
878: $path =~ s/\Q$fname\E\.\Q$ext\E$//;
879: my (%allfiles,%codebase);
880: &Apache::lonnet::extract_embedded_items($file,\%allfiles,
881: \%codebase,$result);
882: if (keys(%allfiles) > 0) {
883: my $url = $request->uri;
884: my $state = <<STATE;
885: <input type="hidden" name="action" value="upload_embedded" />
886: <input type="hidden" name="url" value="$url" />
887: STATE
888: $$getobjref = "<h3>".&mt("Reference Warning")."</h3>".
889: "<p>".&mt("Completed upload of the file. This file contained references to other files.")."</p>".
890: "<p>".&mt("Please select the locations from which the referenced files are to be uploaded.")."</p>".
891: &Apache::loncommon::ask_for_embedded_content($url,$state,\%allfiles,\%codebase,
892: {'error_on_invalid_names' => 1,
893: 'ignore_remote_references' => 1,});
894: }
895: }
896: }
897: } else {
898: &Apache::lonxml::info('<span class="LC_error">'.
899: &mt("Unable to write to [_1]",
900: '<span class="LC_filename">'.
901: $file.'</span>').
902: '</span>');
903: $error|=4;
904: }
905: }
906: return $error;
907: }
908:
909: sub analyze_header {
910: my ($request) = @_;
911: my $js = &Apache::structuretags::setmode_javascript();
912:
913: # Breadcrumbs
914: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
915: 'text' => 'Authoring Space'},
916: {'href' => '',
917: 'text' => 'Problem Testing'},
918: {'href' => '',
919: 'text' => 'Analyzing a problem'}];
920:
921: my $result =
922: &Apache::loncommon::start_page('Analyzing a problem',
923: $js,
924: {'bread_crumbs' => $brcrum,})
925: .&Apache::loncommon::head_subbox(
926: &Apache::loncommon::CSTR_pageheader());
927: $result .=
928: '<form name="lonhomework" method="post" action="'.
929: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
930: '<input type="hidden" name="problemmode" value="'.
931: $env{'form.problemmode'}.'" />'.
932: &Apache::structuretags::remember_problem_state().'
933: <div class="LC_edit_problem_analyze_header">
934: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
935: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
936: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
937: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
938: <hr />
939: <input type="button" name="submitmode" value="'.&mt("View").'" '.
940: 'onclick="javascript:setmode(this.form,'."'view'".')" />
941: <hr />
942: </div>'
943: .&Apache::lonxml::message_location().
944: '</form>';
945: &Apache::lonxml::add_messages(\$result);
946: $request->print($result);
947: $request->rflush();
948: }
949:
950: sub analyze_footer {
951: my ($request) = @_;
952: $request->print(&Apache::loncommon::end_page());
953: $request->rflush();
954: }
955:
956: sub analyze {
957: my ($request,$file) = @_;
958: &Apache::lonxml::debug("Analyze");
959: my $result;
960: my %overall;
961: my %seedexample;
962: my %allparts;
963: my $rndseed=$env{'form.rndseed'};
964: &analyze_header($request);
965: my %prog_state=
966: &Apache::lonhtmlcommon::Create_PrgWin($request,$env{'form.numtoanalyze'});
967: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
968: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,'last problem');
969: if (&Apache::loncommon::connection_aborted($request)) { return; }
970: my $thisseed=$i+$rndseed;
971: my $subresult=&Apache::lonnet::ssi($request->uri,
972: ('grade_target' => 'analyze'),
973: ('rndseed' => $thisseed));
974: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
975: my %analyze=&Apache::lonnet::str2hash($subresult);
976: my @parts;
977: if (ref($analyze{'parts'}) eq 'ARRAY') {
978: @parts=@{ $analyze{'parts'} };
979: }
980: foreach my $part (@parts) {
981: if (!exists($allparts{$part})) {$allparts{$part}=1;};
982: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
983: $analyze{$part.'.type'} eq 'stringresponse' ||
984: $analyze{$part.'.type'} eq 'formularesponse' ) {
985: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
986: my $i=0;
987: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
988: push( @{ $overall{$part.'.answer'}[$i] },
989: $answer_part);
990: my $concatanswer= join("\0",@{ $answer_part });
991: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
992: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
993: }
994: $seedexample{join("\0",$part,$i,@{$answer_part})}=
995: $thisseed;
996: $i++;
997: }
998: }
999: if (!keys(%{ $analyze{$part.'.answer'} })) {
1000: my $answer_part =
1001: ['<span class="LC_error">'.&mt('Error').'</span>'];
1002: $seedexample{join("\0",$part,0,@{$answer_part})}=
1003: $thisseed;
1004: push( @{ $overall{$part.'.answer'}[0] },
1005: $answer_part);
1006: }
1007: }
1008: }
1009: }
1010: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,&mt('Analyzing Results'));
1011: $request->print('<hr />'
1012: .'<h3>'
1013: .&mt('List of possible answers')
1014: .'</h3>'
1015: );
1016: foreach my $part (sort(keys(%allparts))) {
1017: if ((ref($overall{$part.'.answer'}) eq 'ARRAY') &&
1018: (@{$overall{$part.'.answer'}} > 0)) {
1019: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
1020: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1021: $request->print(&Apache::loncommon::start_data_table()
1022: .&Apache::loncommon::start_data_table_header_row()
1023: .'<th colspan="'.($num_cols+1).'">'
1024: .&mt('Part').' '.$part
1025: );
1026: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1027: $request->print(' '.&mt('Answer [_1]',$i+1));
1028: }
1029: $request->print('</th>'
1030: .&Apache::loncommon::end_data_table_header_row()
1031: );
1032: my %frequency;
1033: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
1034: $frequency{join("\0",@{ $answer })}++;
1035: }
1036: $request->print(&Apache::loncommon::start_data_table_header_row()
1037: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
1038: .'<th>'.&mt('Frequency').'<br />'
1039: .'('.&mt('click for example').')</th>'
1040: .&Apache::loncommon::end_data_table_header_row()
1041: );
1042: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1043: $request->print(&Apache::loncommon::start_data_table_row()
1044: .'<td>'
1045: .join('</td><td>',split("\0",$answer))
1046: .'</td>'
1047: .'<td>'
1048: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
1049: .'</td>'
1050: .&Apache::loncommon::end_data_table_row()
1051: );
1052: }
1053: $request->print(&Apache::loncommon::end_data_table());
1054: }
1055: } else {
1056: $request->print('<p class="LC_warning">'
1057: .&mt('Response [_1] is not analyzable at this time.',$part)
1058: .'</p>'
1059: );
1060: }
1061: }
1062: if (scalar(keys(%allparts)) == 0 ) {
1063: $request->print('<p class="LC_warning">'
1064: .&mt('Found no analyzable responses in this problem.'
1065: .' Currently only Numerical, Formula and String response styles are supported.')
1066: .'</p>'
1067: );
1068: }
1069: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1070: &analyze_footer($request);
1071: &Apache::lonhomework::showhash(%overall);
1072: return $result;
1073: }
1074:
1075: {
1076: my $show_problem_status;
1077: sub reset_show_problem_status {
1078: undef($show_problem_status);
1079: }
1080:
1081: sub set_show_problem_status {
1082: my ($new_status) = @_;
1083: $show_problem_status = lc($new_status);
1084: }
1085:
1086: sub hide_problem_status {
1087: return ($show_problem_status eq 'no'
1088: || $show_problem_status eq 'no_feedback_ever');
1089: }
1090:
1091: sub show_problem_status {
1092: return ($show_problem_status eq 'yes'
1093: || $show_problem_status eq 'answer'
1094: || $show_problem_status eq '');
1095: }
1096:
1097: sub show_some_problem_status {
1098: return ($show_problem_status eq 'no');
1099: }
1100:
1101: sub show_no_problem_status {
1102: return ($show_problem_status eq 'no_feedback_ever');
1103: }
1104:
1105: sub show_answer_problem_status {
1106: return ($show_problem_status eq 'answer');
1107: }
1108: }
1109:
1110: sub editxmlmode {
1111: my ($request,$file) = @_;
1112: my $result;
1113: my $problem=&Apache::lonnet::getfile($file);
1114: if ($problem eq -1) {
1115: &Apache::lonxml::error(
1116: '<p class="LC_error">'
1117: .&mt('Unable to find [_1]',
1118: '<span class="LC_filename">'.$file.'</span>')
1119: .'</p>');
1120:
1121: $problem='';
1122: }
1123: if (($env{'form.problemmode'} eq 'saveeditxml') ||
1124: ($env{'form.problemmode'} eq 'saveviewxml') ||
1125: ($env{'form.problemmode'} eq 'undoxml')) {
1126: my $error=&handle_save_or_undo($request,\$problem,
1127: \$env{'form.editxmltext'});
1128: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
1129: }
1130: &Apache::lonhomework::showhashsubset(\%env,'^form');
1131: if ($env{'form.problemmode'} eq 'saveviewxml') {
1132: &Apache::lonhomework::showhashsubset(\%env,'^form');
1133: $env{'form.problemmode'}='view';
1134: &renderpage($request,$file);
1135: } else {
1136: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1137: if ($cols > 80) { $cols = 80; }
1138: if ($cols < 70) { $cols = 70; }
1139: if ($rows < 20) { $rows = 20; }
1140: my $js =
1141: &Apache::edit::js_change_detection().
1142: &Apache::loncommon::resize_textarea_js().
1143: &Apache::structuretags::setmode_javascript().
1144: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1145:
1146: # Breadcrumbs
1147: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1148: 'text' => 'Authoring Space'},
1149: {'href' => '',
1150: 'text' => 'Problem Editing'}];
1151:
1152: my $start_page =
1153: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
1154: {'no_auto_mt_title' => 1,
1155: 'only_body' => 0,
1156: 'add_entries' => {
1157: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1158: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1159: },
1160: 'bread_crumbs' => $brcrum,
1161: });
1162:
1163: $result=$start_page
1164: .&Apache::loncommon::head_subbox(
1165: &Apache::loncommon::CSTR_pageheader());
1166: $result.=&renderpage($request,$file,['no_output_web'],1).
1167: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1168: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1169: &Apache::structuretags::remember_problem_state().'
1170: <div class="LC_edit_problem_header">
1171: <div class="LC_edit_problem_header_title">'.
1172: &mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').
1173: '</div><div class="LC_edit_actionbar" id="actionbar">';
1174:
1175: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
1176: &Apache::structuretags::problem_edit_buttons('editxml');
1177: $result.='<div>';
1178:
1179: $result .= '<ol class="LC_primary_menu" style="display:inline-block;font-size:90%;vertical-align:middle;">';
1180:
1181: unless ($env{'environment.nocodemirror'}) {
1182: # dropdown menus
1183: $result .= Apache::lonmenu::create_submenu("#", "",
1184: &mt("Problem Templates"), template_dropdown_datastructure());
1185:
1186: $result .= Apache::lonmenu::create_submenu("#", "",
1187: &mt("Response Types"), responseblock_dropdown_datastructure());
1188:
1189: $result .= Apache::lonmenu::create_submenu("#", "",
1190: &mt("Conditional Blocks"), conditional_scripting_datastructure());
1191:
1192: $result .= Apache::lonmenu::create_submenu("#", "",
1193: &mt("Miscellaneous"), misc_datastructure());
1194: }
1195:
1196: $result .= Apache::lonmenu::create_submenu("#", "",
1197: &mt("Help") . ' <img src="/adm/help/help.png" alt="' . &mt("Help") .
1198: '" style="vertical-align:text-bottom; height: auto; margin:0; "/>',
1199: helpmenu_datastructure(),"");
1200:
1201: $result.="</ol></div>";
1202:
1203: $result .= '</div></div>' .
1204: &Apache::lonxml::message_location() .
1205: &Apache::loncommon::xmleditor_js() .
1206: '<textarea ' . &Apache::edit::element_change_detection() .
1207: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" ' .
1208: ' name="editxmltext" id="LC_editxmltext">' .
1209: &HTML::Entities::encode($problem,'<>&"') .
1210: '</textarea> <div id="LC_aftertextarea"> </div> </form>';
1211:
1212: my $resource = $env{'request.ambiguous'};
1213: unless($env{'environment.nocodemirror'}){
1214: $result .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined-xml.css">
1215: <script src="/adm/codemirror/codemirror-compressed-xml.js"></script>
1216: <script>
1217: CodeMirror.defineMode("mixedmode", function(config) {
1218: return CodeMirror.multiplexingMode(
1219: CodeMirror.getMode(config, "xml"),
1220: {
1221: open: "\<script type=\"loncapa/perl\"\>", close: "\</script\>",
1222: mode: CodeMirror.getMode(config, "perl"),
1223: delimStyle: "tag",
1224: }
1225: );
1226: });
1227: var cm = CodeMirror.fromTextArea(document.getElementById("LC_editxmltext"),
1228: {
1229: mode: "mixedmode",
1230: lineWrapping: true,
1231: lineNumbers: true,
1232: tabSize: 4,
1233: indentUnit: 4,
1234:
1235: autoCloseTags: true,
1236: autoCloseBrackets: true,
1237: height: "auto",
1238: styleActiveLine: true,
1239:
1240: extraKeys: {
1241: "Tab": "indentMore",
1242: "Shift-Tab": "indentLess",
1243: }
1244: });
1245: restoreScrollPosition("'.$resource.'");
1246: </script>';
1247: }
1248:
1249: $result .= &Apache::loncommon::end_page();
1250: &Apache::lonxml::add_messages(\$result);
1251: $request->print($result);
1252: }
1253: return '';
1254: }
1255:
1256: #
1257: # Render the page in whatever target desired.
1258: #
1259: sub renderpage {
1260: my ($request,$file,$targets,$return_string,$donebuttonmsg) = @_;
1261:
1262: my @targets = @{$targets || [&get_target()]};
1263: &Apache::lonhomework::showhashsubset(\%env,'form.');
1264: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1265:
1266: my $overall_result;
1267: foreach my $target (@targets) {
1268: # FIXME need to do something intelligent when a problem goes
1269: # from viewable to not viewable due to map conditions
1270: #&setuppermissions();
1271: #if ( $Apache::lonhomework::browse ne '2'
1272: # && $Apache::lonhomework::browse ne 'F' ) {
1273: # $request->print(" You most likely shouldn't see me.");
1274: #}
1275: #my $t0 = [&gettimeofday()];
1276: my $output=1;
1277: if ($target eq 'no_output_web') {
1278: $target = 'web'; $output=0;
1279: }
1280: my $problem=&Apache::lonnet::getfile($file);
1281: my $result;
1282: if ($problem eq -1) {
1283: $problem='';
1284: my $filename=(split('/',$file))[-1];
1285: my $error =
1286: '<p class="LC_error">'
1287: .&mt('Unable to find [_1]',
1288: '<span class="LC_filename">'.$filename.'</span>')
1289: ."</p>";
1290: $result.=
1291: &Apache::loncommon::simple_error_page($request,'Not available',
1292: $error,{'no_auto_mt_msg' => 1});
1293: return;
1294: }
1295:
1296: my %mystyle;
1297: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1298: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1299: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1300:
1301: &Apache::lonxml::debug("Should be parsing now");
1302: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1303: &setup_vars($target),%mystyle);
1304: &finished_parsing();
1305: if (!$output) { $result = ''; }
1306: #$request->print("Result follows:");
1307: if ($target eq 'modified') {
1308: &handle_save_or_undo($request,\$problem,\$result);
1309: } else {
1310: if ($target eq 'analyze') {
1311: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1312: undef(%Apache::lonhomework::analyze);
1313: } elsif ($target eq 'web') {
1314: if ($donebuttonmsg) {
1315: $result =~ s{</body>}{};
1316: $result.= &Apache::loncommon::confirmwrapper(&Apache::lonhtmlcommon::confirm_success($donebuttonmsg,1))."\n</body>";
1317: }
1318: }
1319: #my $td=&tv_interval($t0);
1320: #if ( $Apache::lonxml::debug) {
1321: #$result =~ s:</body>::;
1322: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1323: #}
1324: # $request->print($result);
1325: $overall_result.=$result;
1326: # $request->rflush();
1327: }
1328: #$request->print(":Result ends");
1329: #my $td=&tv_interval($t0);
1330: }
1331: if (!$return_string) {
1332: &Apache::lonxml::add_messages(\$overall_result);
1333: $request->print($overall_result);
1334: $request->rflush();
1335: } else {
1336: return $overall_result;
1337: }
1338: }
1339:
1340: sub finished_parsing {
1341: undef($Apache::lonhomework::parsing_a_problem);
1342: undef($Apache::lonhomework::parsing_a_task);
1343: }
1344:
1345: # function extracted from get_template_html
1346: # returns "key" -> list
1347: # key: path of template
1348: # value 1: title
1349: # value 2: category
1350: # value 3: name of help topic ???
1351: sub get_template_list{
1352: my ($extension) = @_;
1353:
1354: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1355: '/templates/*.'.$extension);
1356: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1357: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1358: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1359: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1360: return @files;
1361: }
1362:
1363: sub get_template_html {
1364: my ($extension) = @_;
1365: my $result;
1366: my @allnames;
1367: &Apache::lonxml::debug("Looking for :$extension:");
1368: my $glob_extension = $extension;
1369: if ($extension eq 'survey' || $extension eq 'exam') {
1370: $glob_extension = 'problem';
1371: }
1372: my @files = &get_template_list($extension);
1373: my ($midpoint,$seconddiv,$numfiles);
1374: my @noexamplelink = ('blank.problem','blank.library','script.library');
1375: $numfiles = 0;
1376: foreach my $file (@files) {
1377: next if ($file->[1] !~ /\S/);
1378: $numfiles ++;
1379: }
1380: if ($numfiles > 0) {
1381: $result = '<div class="LC_left_float">';
1382: $midpoint = int($numfiles/2);
1383: if ($numfiles%2) {
1384: $midpoint ++;
1385: }
1386: }
1387: my $count = 0;
1388: my $currentcategory='';
1389: my $first = 1;
1390: my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
1391: foreach my $file (@files) {
1392: next if ($file->[1] !~ /\S/);
1393: if ($file->[2] ne $currentcategory) {
1394: $currentcategory=$file->[2];
1395: if ((!$seconddiv) && ($count >= $midpoint)) {
1396: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1397: $seconddiv = 1;
1398: } elsif (!$first) {
1399: $result.='</div>'."\n";
1400: } else {
1401: $first = 0;
1402: }
1403: $result.= '<div class="LC_Box">'."\n"
1404: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1405: $count++;
1406: }
1407: $result .=
1408: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1409: $file->[1].'</label>';
1410: if ($file->[3]) {
1411: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1412: }
1413: # Provide example link
1414: my $filename=$file->[0];
1415: $filename=~s{^\Q$londocroot\E}{};
1416: if (!(grep($filename =~ /\Q$_\E$/,@noexamplelink))) {
1417: $result .= ' <span class="LC_fontsize_small">'
1418: .&Apache::loncommon::modal_link(
1419: $filename.'?inhibitmenu=yes',&mt('Example'),600,420,'sample')
1420: .'</span>';
1421: }
1422: $result .= '<br />'."\n";
1423: $count ++;
1424: }
1425: if ($numfiles > 0) {
1426: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1427: }
1428: return $result;
1429: }
1430:
1431: sub newproblem {
1432: my ($request) = @_;
1433:
1434: if ($env{'form.mode'} eq 'blank'){
1435: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1436: my $templatefilename =
1437: $request->dir_config('lonIncludes').'/templates/blank.problem';
1438: &File::Copy::copy($templatefilename,$dest);
1439: &renderpage($request,$dest);
1440: return;
1441: }
1442: my $errormsg;
1443: if ($env{'form.template'}) {
1444: my $file;
1445: my ($extension) = ($env{'form.template'} =~ /\.(\w+)$/);
1446: if ($extension) {
1447: my @files = &get_template_list($extension);
1448: foreach my $poss (@files) {
1449: if (ref($poss) eq 'ARRAY') {
1450: if ($env{'form.template'} eq $poss->[0]) {
1451: $file = $env{'form.template'};
1452: last;
1453: }
1454: }
1455: }
1456: if ($file) {
1457: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1458: &File::Copy::copy($file,$dest);
1459: &renderpage($request,$dest);
1460: return;
1461: } else {
1462: $errormsg = '<p class="LC_error">'.&mt('Invalid template file.').'</p>';
1463: }
1464: } else {
1465: $errormsg = '<p class="LC_error">'.&mt('Invalid template file; template needs to be a .problem, .library, or .task file.').'</p>';
1466: }
1467: }
1468:
1469: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1470: &Apache::lonxml::debug("Looking for :$extension:");
1471: my $templatelist=&get_template_html($extension);
1472: if ($env{'form.newfile'} && !$templatelist) {
1473: # no templates found
1474: my $templatefilename =
1475: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1476: &Apache::lonxml::debug("$templatefilename");
1477: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1478: &File::Copy::copy($templatefilename,$dest);
1479: &renderpage($request,$dest);
1480: } else {
1481: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1482: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1483: my $instructions;
1484: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1485: 'text' => 'Authoring Space'},
1486: {'href' => '',
1487: 'text' => "Create New $extension"}];
1488: my $start_page =
1489: &Apache::loncommon::start_page("Create New $extension",
1490: undef,
1491: {'bread_crumbs' => $brcrum,});
1492: $request->print(
1493: $start_page
1494: .&Apache::loncommon::head_subbox(
1495: &Apache::loncommon::CSTR_pageheader())
1496: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1497: $errormsg
1498: ".&mt("The requested file [_1] currently does not exist.",
1499: '<span class="LC_filename">'.$url.'</span>').'
1500: <p class="LC_info">
1501: '.&mt("To create a new $extension, select a template from the".
1502: " list below. Then click on the \"Create $extension\" button.").'
1503: </p><div><form action="'.$url.'" method="post">');
1504:
1505: if (defined($templatelist)) {
1506: $request->print($templatelist);
1507: }
1508: $request->print('<br /><input type="submit" name="newfile" value="'.
1509: &mt("Create $extension").'" />');
1510: $request->print('</form></div>'.&Apache::loncommon::end_page());
1511: }
1512: return;
1513: }
1514:
1515: sub update_construct_style {
1516: if ($env{'request.state'} eq "construct"
1517: && $env{'form.problemmode'} eq 'view'
1518: && defined($env{'form.submitted'})
1519: && !defined($env{'form.resetdata'})
1520: && !defined($env{'form.newrandomization'})) {
1521: if ((!$env{'form.style_file'} && $env{'construct.style'})
1522: ||$env{'form.clear_style_file'}) {
1523: &Apache::lonnet::delenv('construct.style');
1524: } elsif ($env{'form.style_file'}
1525: && $env{'construct.style'} ne $env{'form.style_file'}) {
1526: &Apache::lonnet::appenv({'construct.style' =>
1527: $env{'form.style_file'}});
1528: }
1529: }
1530: }
1531:
1532: #
1533: # Sets interval for current user so time left will be zero, either for the entire folder
1534: # containing the current resource, or just the resource, depending on value of first item
1535: # in interval array retrieved from EXT("resource.0.interval");
1536: #
1537: sub zero_timer {
1538: my ($symb) = @_;
1539: my ($hastimeleft,$first_access,$now);
1540: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
1541: if (@interval > 1) {
1542: if ($interval[1] eq 'course') {
1543: return ('fail',&mt('Ending of timed events not supported for intervals set course-wide'));
1544: } else {
1545: my $now = time;
1546: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
1547: if ($first_access > 0) {
1548: my ($timelimit,$donesuffix) = split(/_/,$interval[0],2);
1549: if ($donesuffix =~ /^done(?:|\:[^\:]+\:)(.*)$/) {
1550: my ($dummy,$proctor,$secret) = split(/_/,$1);
1551: if (($proctor) && ($secret ne '')) {
1552: my $key = $env{'form.LC_interval_done_proctorpass'};
1553: $key =~ s/^\s+//;
1554: $key =~ s/\s+$//;
1555: if ($env{'form.LC_interval_done_proctorpass'} ne $secret) {
1556: return ('fail',
1557: &mt('Incorrect key entered by proctor'));
1558: }
1559: }
1560: if ($first_access+$timelimit > $now) {
1561: my $done_time = $now - $first_access;
1562: my $snum = 1;
1563: if ($interval[1] eq 'map') {
1564: $snum = 2;
1565: }
1566: my $result =
1567: &Apache::lonparmset::storeparm_by_symb_inner($symb,'0_interval',
1568: $snum,$done_time,
1569: 'date_interval',
1570: $env{'user.name'},
1571: $env{'user.domain'});
1572: if ($result eq '') {
1573: # Record action in "User Notes"
1574: &Apache::lonmsg::store_instructor_comment(
1575: 'Pressed Done button for symb:<br />'.$symb,
1576: $env{'user.name'}, $env{'user.domain'});
1577: return ('ok');
1578: } else {
1579: return ('fail',&mt('Error ending timed event: [_1]',$result));
1580: }
1581: } else {
1582: return ('fail',&mt('Timed event already ended'));
1583: }
1584: } else {
1585: return ('fail',&mt('Timed event can not be ended before the time limit'));
1586: }
1587: } else {
1588: return ('fail',&mt('Timer not yet started for this timed event'));
1589: }
1590: }
1591: } else {
1592: return ('fail',&mt('No timer in use'));
1593: }
1594: return();
1595: }
1596:
1597: sub handler {
1598: #my $t0 = [&gettimeofday()];
1599: my $request=$_[0];
1600:
1601: $Apache::lonxml::request=$request;
1602: $Apache::lonxml::debug=$env{'user.debug'};
1603: $env{'request.uri'}=$request->uri;
1604: &setuppermissions();
1605:
1606: my $file=&Apache::lonnet::filelocation("",$request->uri);
1607:
1608: #check if we know where we are
1609: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread('','',1,1)) {
1610: # if we are browsing we might not be able to know where we are
1611: if ($Apache::lonhomework::browse ne 'F' &&
1612: $env{'request.state'} ne "construct") {
1613: #should know where we are, so ask
1614: &unset_permissions();
1615: $request->internal_redirect('/adm/ambiguous');
1616: return OK;
1617: }
1618: }
1619: if (&setupheader($request)) {
1620: &unset_permissions();
1621: return OK;
1622: }
1623:
1624: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1625: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1626: my ($symb) = &Apache::lonnet::whichuser();
1627: &Apache::lonxml::debug('symb is '.$symb);
1628: if ($env{'request.state'} eq "construct") {
1629: if ( -e $file ) {
1630: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1631: ['problemmode']);
1632: if (!(defined $env{'form.problemmode'})) {
1633: #first visit to problem in construction space
1634: $env{'form.problemmode'}= 'view';
1635: &renderpage($request,$file);
1636: } elsif (($env{'form.problemmode'} eq 'editxml') ||
1637: ($env{'form.problemmode'} eq 'saveeditxml') ||
1638: ($env{'form.problemmode'} eq 'saveviewxml') ||
1639: ($env{'form.problemmode'} eq 'undoxml')) {
1640: &editxmlmode($request,$file);
1641: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1642: &analyze($request,$file);
1643: } else {
1644: &update_construct_style();
1645: &renderpage($request,$file);
1646: }
1647: } else {
1648: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1649: ['mode']);
1650: # requested file doesn't exist in contruction space
1651: &newproblem($request);
1652: }
1653: } else {
1654: # Set the event timer to zero if the "done button" was clicked. The button is
1655: # part of the doneButton form created in lonmenu.pm
1656: my ($donebuttonresult,$donemsg);
1657: if ($symb && $env{'form.LC_interval_done'} eq 'true') {
1658: ($donebuttonresult,$donemsg) = &zero_timer($symb);
1659: undef($env{'form.LC_interval_done'});
1660: undef($env{'form.LC_interval_done_proctorpass'});
1661: }
1662: # just render the page normally outside of construction space
1663: &Apache::lonxml::debug("not construct");
1664: &renderpage($request,$file,undef,undef,$donemsg);
1665: }
1666: #my $td=&tv_interval($t0);
1667: #&Apache::lonxml::debug("Spent $td seconds processing");
1668: # always turn off debug messages
1669: $Apache::lonxml::debug=0;
1670: &unset_permissions();
1671: return OK;
1672:
1673: }
1674:
1675: sub template_dropdown_datastructure {
1676: # gathering the all templates and their path, title, category and help topic
1677: my @templates = get_template_list('problem');
1678: # template category => title
1679: my %tmplthash = ();
1680: # template title => path
1681: my %tmpltcontent = ();
1682:
1683: foreach my $template (@templates){
1684: # put in hash if the template is not empty
1685: unless ($template->[1] eq ''){
1686: push(@{$tmplthash{$template->[2]}}, $template->[1]);
1687: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
1688: }
1689: }
1690:
1691: my $catList = [];
1692: foreach my $cat (sort keys %tmplthash) {
1693: my $catItems = [];
1694: foreach my $title (sort @{$tmplthash{$cat}}) {
1695: my $path = $tmpltcontent{$title}->[0];
1696: my $code;
1697: open(FH, "<$path");
1698: while(<FH>){
1699: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
1700: }
1701: close(FH);
1702:
1703: if ($code ne '') {
1704: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code,'<>&"')) . '\')';
1705: my $currItem = [$href, $title, undef];
1706: push @{$catItems}, $currItem;
1707: }
1708: }
1709: push @{$catList}, [$catItems, $cat, undef];
1710: }
1711:
1712: return $catList;
1713: }
1714:
1715: sub responseblock_dropdown_datastructure {
1716:
1717: my $mathCat = [
1718: [
1719: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
1720: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
1721: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
1722: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
1723: ],
1724: &mt("Math"),
1725: undef
1726: ];
1727:
1728: my $miscCat = [
1729: [
1730: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
1731: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
1732: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
1733: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Two Lists"), undef],
1734: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N statements"), undef],
1735: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Select from Options"), undef],
1736: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
1737: ],
1738: &mt("Miscellaneous"),
1739: undef
1740: ];
1741:
1742: my $chemCat = [
1743: [
1744: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
1745: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Chemical Structure"), undef]
1746: ],
1747: &mt("Chemistry"),
1748: undef
1749: ];
1750:
1751: my $textCat = [
1752: [
1753: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
1754: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
1755: ],
1756: &mt("Text"),
1757: undef
1758: ];
1759:
1760: return [$mathCat, $miscCat, $chemCat, $textCat];
1761: }
1762:
1763:
1764: sub conditional_scripting_datastructure {
1765: # TODO: corresponding routines should be used for the javascript:insertText parts
1766: # instead of the placeholder routine default_xml_tag with the tags
1767: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
1768: # returns the corresponding content for this case
1769:
1770: #TODO translated is currently temporarily here, another solution should be found where the
1771: # needed string can be retrieved
1772:
1773: my $translatedTag = '
1774: <translated>
1775: <lang which="en"></lang>
1776: <lang which="default"></lang>
1777: </translated>';
1778: return [
1779: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Block"), undef],
1780: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
1781: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Date Block"), undef],
1782: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
1783: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
1784: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
1785: ];
1786: }
1787:
1788: sub misc_datastructure {
1789: return [
1790: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
1791: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
1792: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef],
1793: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
1794: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
1795: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
1796: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef],
1797: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("part"))) . "\')", &mt("Problem Part"), undef]
1798: ];
1799: }
1800:
1801: # helper routine for the datastructure building subroutines
1802: sub default_xml_tag {
1803: my ($tag) = @_;
1804: return "\n<$tag></$tag>";
1805: }
1806:
1807:
1808: sub helpmenu_datastructure {
1809:
1810: my $width = 500;
1811: my $height = 600;
1812:
1813: my $helpers = [
1814: ['Problem_LON-CAPA_Functions', &mt('Script Functions')],
1815: ['Greek_Symbols', &mt('Greek Symbols')],
1816: ['Other_Symbols', &mt('Other Symbols')],
1817: ['Authoring_Output_Tags', &mt('Output Tags')],
1818: ['Authoring_Multilingual_Problems',
1819: &mt('How to create problems in different languages')]
1820: ];
1821:
1822: my $help_structure = [];
1823:
1824: foreach my $count (0..(scalar(@{$helpers})-1)) {
1825: my $filename = $helpers->[$count]->[0];
1826: my $title = $helpers->[$count]->[1];
1827: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename.hlp',$width,$height,'yes');");
1828: push @{$help_structure}, [$href, $title, undef];
1829: }
1830:
1831: return $help_structure;
1832: }
1833:
1834: # we need substitution to not break javascript code
1835: sub convert_for_js {
1836: my $return = shift;
1837: $return =~ s|script|ESCAPEDSCRIPT|g;
1838: $return =~ s|\\|\\\\|g;
1839: $return =~ s|\n|\\r\\n|g;
1840: $return =~ s|'|\\'|g;
1841: $return =~ s|'|\\'|g;
1842: return $return;
1843: }
1844:
1845: 1;
1846: __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