Annotation of loncom/homework/structuretags.pm, revision 1.465.2.13
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.465.2.13! raeburn 4: # $Id: structuretags.pm,v 1.465.2.12 2011/01/07 05:14:57 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.465.2.2 raeburn 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
1.465.2.9 raeburn 131: // <![CDATA[
1.400 albertel 132: function setSubmittedPart (part) {
133: this.document.lonhomework.submitted.value="part_"+part;
134: }
135:
136: function image_response_click (which, e) {
137: init_geometry();
138: if (!e) { e = window.event; } //IE
139: var input_element = document.lonhomework.elements[which];
1.401 albertel 140: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 141: var token = token_element.value;
1.401 albertel 142: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 143: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
144: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
145: var click = x+':'+y;
146: input_element.value = click;
1.465.2.13! raeburn 147: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 148: }
1.465.2.9 raeburn 149: // ]]>
1.400 albertel 150: </script>
151: JS
152: }
153:
1.416 raeburn 154: sub setmode_javascript {
155: return <<"ENDSCRIPT";
156: <script type="text/javascript">
1.465.2.13! raeburn 157: // <![CDATA[
1.416 raeburn 158: function setmode(form,probmode) {
159: form.problemmode.value = probmode;
160: form.submit();
161: }
1.465.2.13! raeburn 162: // ]]>
1.416 raeburn 163: </script>
164: ENDSCRIPT
165: }
166:
1.465.2.6 raeburn 167: sub file_delchk_js {
1.465.2.12 raeburn 168: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.').'\\n'.
169: &mt('Continue submission with these files removed?');
1.465.2.6 raeburn 170: return <<"ENDSCRIPT";
171: <script type="text/javascript">
1.465.2.9 raeburn 172: // <![CDATA[
1.465.2.6 raeburn 173: function file_deletion_check(formname) {
174: var elemnum = formname.elements.length;
175: if (elemnum == 0) {
176: return true;
177: }
1.465.2.9 raeburn 178: var str = new RegExp("^HWFILE.+_delete\$");
179: var delboxes = new Array();
1.465.2.6 raeburn 180: for (i=0; i<formname.elements.length; i++) {
181: var id = formname.elements[i].id;
182: if (id != '') {
183: if (str.test(id)) {
184: if (formname.elements[i].type == 'checkbox') {
185: if (formname.elements[i].checked) {
1.465.2.9 raeburn 186: delboxes.push(id);
1.465.2.6 raeburn 187: }
188: }
189: }
190: }
191: }
1.465.2.9 raeburn 192: if (delboxes.length > 0) {
1.465.2.6 raeburn 193: if (confirm("$delfilewarn")) {
194: return true;
195: } else {
1.465.2.9 raeburn 196: for (var j=0; j<delboxes.length; j++) {
197: formname.elements[delboxes[j]].checked = false;
198: }
1.465.2.6 raeburn 199: return false;
200: }
201: } else {
202: return true;
203: }
204: }
1.465.2.9 raeburn 205: // ]]>
1.465.2.6 raeburn 206: </script>
207: ENDSCRIPT
208: }
209:
1.48 albertel 210: sub page_start {
1.345 albertel 211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
212: $extra_head)=@_;
1.159 albertel 213: my %found;
1.207 albertel 214: foreach my $taginside (@$tagstack) {
1.159 albertel 215: foreach my $taglookedfor ('html','body','form') {
216: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
217: }
218: }
219:
1.343 albertel 220: if ($target eq 'tex') {
221: return
222: &Apache::londefdef::start_html($target,$token,$tagstack,
223: $parstack,$parser,$safeeval);
224: }
225:
1.465.2.4 raeburn 226: $extra_head .= &homework_js().
227: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
228: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
229: my %textarea_args = (
230: dragmath => 'math',
231: );
232: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 233: }
1.465.2.6 raeburn 234: my $is_task = ($env{'request.uri'} =~ /\.task$/);
235: if ($is_task) {
236: $extra_head .= &file_delchk_js();
237: }
1.425 raeburn 238:
1.344 albertel 239: my %body_args;
240: if (defined($found{'html'})) {
241: $body_args{'skip_phases'}{'head'}=1;
242: } else {
1.343 albertel 243:
1.345 albertel 244: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 245:
1.379 albertel 246: $extra_head .= &Apache::londefdef::generate_css_links();
247:
1.384 albertel 248: if ($env{'request.state'} eq 'construct') {
1.343 albertel 249: $extra_head.=&Apache::edit::js_change_detection().
250: "<script type=\"text/javascript\">\n".
251: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
252: &Apache::loncommon::browser_and_searcher_javascript().
253: "\n</script>\n";
254: }
1.159 albertel 255: }
1.343 albertel 256:
1.446 bisitz 257: my $pageheader = '';
1.344 albertel 258: if (defined($found{'body'})) {
259: $body_args{'skip_phases'}{'body'}=1;
260: } elsif (!defined($found{'body'})
261: && $env{'request.state'} eq 'construct') {
1.343 albertel 262: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 263: if ($env{'environment.remote'} ne 'off') {
264: $body_args{'only_body'} = 1;
265: }
1.450 bisitz 266: # Breadcrumbs for Construction Space
267: &Apache::lonhtmlcommon::clear_breadcrumbs();
268: &Apache::lonhtmlcommon::add_breadcrumb({
269: 'text' => 'Construction Space',
270: 'href' => &Apache::loncommon::authorspace(),
271: });
1.460 droeschl 272: # breadcrumbs (and tools) will be created
273: # in start_page->bodytag->innerregister
274:
1.450 bisitz 275: # FIXME Where are we?
276: # &Apache::lonhtmlcommon::add_breadcrumb({
277: # 'text' => 'Problem Editing', # 'Problem Testing'
278: # 'href' => '',
279: # });
1.460 droeschl 280: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 281: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 282: }
1.272 albertel 283: } elsif (!defined($found{'body'})) {
1.343 albertel 284: my %add_entries;
1.159 albertel 285: my $background=&Apache::lonxml::get_param('background',$parstack,
286: $safeeval);
1.343 albertel 287: if ($background ne '' ) {
288: $add_entries{'background'} = $background;
289: }
1.344 albertel 290:
1.290 albertel 291: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
292: $safeeval);
1.446 bisitz 293: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 294:
1.446 bisitz 295: $body_args{'bgcolor'} = $bgcolor;
296: # $body_args{'no_title'} = 1;
297: $body_args{'force_register'} = 1;
298: $body_args{'add_entries'} = \%add_entries;
299: if ($env{'environment.remote'} eq 'off'
300: && $env{'request.state'} eq 'construct') {
301: $body_args{'only_body'} = 1;
302: }
1.344 albertel 303: }
1.365 albertel 304: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 305: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
306: \%body_args);
1.446 bisitz 307: $page_start .= $pageheader;
1.462 raeburn 308: if (!defined($found{'body'})
309: && $env{'request.state'} ne 'construct'
310: && ($target eq 'web' || $target eq 'webgrade')) {
311:
312: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
313: if ($symb eq '' && !$publicuser) {
314: $page_start .= '<p class="LC_info">'
315: .&mt('Browsing resource, all submissions are temporary.')
316: .'</p>';
1.457 bisitz 317: }
1.344 albertel 318: }
319:
1.409 albertel 320: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 321: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 322: }
1.344 albertel 323:
1.159 albertel 324: my $form_tag_start;
325: if (!defined($found{'form'})) {
1.337 albertel 326: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 327: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 328: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 329: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 330: $form_tag_start.=$uri.'" ';
331: if ($target eq 'edit') {
332: $form_tag_start.=&Apache::edit::form_change_detection();
333: }
1.465.2.6 raeburn 334: if ($is_task) {
335: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
336: }
1.368 albertel 337: $form_tag_start.='>'."\n";
1.355 albertel 338:
339: my $symb=&Apache::lonnet::symbread();
340: if ($symb =~ /\S/) {
341: $symb=
342: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
343: $form_tag_start.=
1.368 albertel 344: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 345: }
1.159 albertel 346: }
1.343 albertel 347: return ($page_start,$form_tag_start);
1.105 albertel 348: }
349:
1.141 matthew 350: #use Time::HiRes();
1.105 albertel 351: sub get_resource_name {
1.159 albertel 352: my ($parstack,$safeeval)=@_;
1.388 foxr 353: my $name;
1.204 albertel 354: if (defined($Apache::lonhomework::name)) {
1.388 foxr 355: $name = $Apache::lonhomework::name;
356: } else {
357: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 358: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 359: if ($name eq '') {
360: $name=&Apache::lonnet::EXT('resource.title');
361: if ($name eq 'con_lost') { $name = ''; }
362: }
363: if ($name!~/\S+/) {
364: $name=$env{'request.uri'};
365: $name=~s-.*/([^/]+)$-$1-;
366: }
367: # The name has had html tags escaped:
368:
369: $name=~s/</</gs;
370: $name=~s/>/>/gs;
371:
372: $Apache::lonhomework::name=$name;
1.204 albertel 373: }
1.159 albertel 374: return $name;
1.105 albertel 375: }
376:
377: sub setup_rndseed {
1.465.2.7 raeburn 378: my ($safeeval,$target)=@_;
1.367 albertel 379: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 380: my ($questiontype,$set_safespace,$rndseed);
381: if ($target eq 'analyze') {
382: $questiontype = $env{'form.grade_questiontype'};
383: }
384: unless (defined($questiontype)) {
385: $questiontype = $Apache::lonhomework::type;
386: }
1.333 albertel 387: if ($env{'request.state'} eq "construct"
388: || $symb eq ''
389: || $Apache::lonhomework::type eq 'practice'
390: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 391: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 392: ['rndseed']);
1.284 albertel 393: $rndseed=$env{'form.rndseed'};
1.159 albertel 394: if (!$rndseed) {
1.162 albertel 395: $rndseed=$Apache::lonhomework::history{'rndseed'};
396: if (!$rndseed) {
397: $rndseed=time;
398: }
1.284 albertel 399: $env{'form.rndseed'}=$rndseed;
1.162 albertel 400: }
1.465.2.7 raeburn 401: if (($env{'request.state'} eq "construct") &&
402: ($Apache::lonhomework::type eq 'randomizetry')) {
403: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
404: if ($tries) {
405: $rndseed += $tries;
406: }
407: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
408: }
1.374 albertel 409: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
410: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 411: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 412: srand(time);
413: $rndseed=int(rand(2100000000));
1.284 albertel 414: $env{'form.rndseed'}=$rndseed;
415: delete($env{'form.resetdata'});
416: delete($env{'form.newrandomization'});
1.159 albertel 417: }
1.187 albertel 418: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 419: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 420: }
1.247 albertel 421: if ($Apache::lonhomework::history{'resource.CODE'}) {
422: $rndseed=&Apache::lonnet::rndseed();
423: }
1.465.2.7 raeburn 424: $set_safespace = 1;
425: } elsif ($questiontype eq 'randomizetry') {
426: if ($target eq 'analyze') {
427: if (defined($env{'form.grade_rndseed'})) {
428: $rndseed = $env{'form.grade_rndseed'};
429: }
430: }
431: unless (($target eq 'analyze') && (defined($rndseed))) {
432: $rndseed=&Apache::lonnet::rndseed();
433: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
434: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
435: $curr_try ++;
436: }
437: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
438: $rndseed = $1;
439: }
440: if ($curr_try) {
441: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
442: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
443: my $inc = int(($curr_try-1)/$reqtries);
444: $rndseed += $inc;
445: } else {
446: $rndseed += $curr_try;
447: }
448: }
449: }
450: $set_safespace = 1;
451: }
452: if ($set_safespace) {
453: if ($safeeval) {
454: &Apache::lonxml::debug("Setting rndseed to $rndseed");
455: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
456: }
457: }
458: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
459: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 460: }
461: return $rndseed;
1.105 albertel 462: }
463:
1.268 albertel 464: sub remember_problem_state {
465: return '
1.284 albertel 466: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
467: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
468: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 469: }
470:
1.423 www 471: sub problem_edit_buttons {
472: return '
1.408 albertel 473: <div class="LC_edit_problem_discards">
1.416 raeburn 474: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 475: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 476: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 477: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 478: </div>
479: <div class="LC_edit_problem_saves">
1.416 raeburn 480: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
481: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 482: </div>';
483: }
484:
485: sub problem_edit_header {
486: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
487: &Apache::structuretags::remember_problem_state().'
488: <div class="LC_edit_problem_header">
489: <div class="LC_edit_problem_header_title">
490: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
491: </div>'.
492: &problem_edit_buttons().'
1.459 bisitz 493: <hr style="clear:both;" />
1.409 albertel 494: '.&Apache::lonxml::message_location().'
1.408 albertel 495: </div>
496: '.
1.458 bisitz 497: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 498: }
499:
500: sub problem_edit_footer {
1.412 albertel 501: return '</td></tr></table><br />
502: <div class="LC_edit_problem_footer">
1.453 bisitz 503: <hr />'.
1.423 www 504: &problem_edit_buttons().'
1.459 bisitz 505: <hr style="clear:both;" />
1.412 albertel 506: </div>
507: '.
1.342 albertel 508: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 509: }
510:
1.235 albertel 511: sub option {
512: my ($value,$name) = @_;
513: my $result ="<option value='".$value."' ";
1.284 albertel 514: if ($env{'form.'.$name} eq $value) {
1.235 albertel 515: $result.=" selected='on' ";
516: }
517: $result.='>';
518: return $result;
519: }
520:
1.105 albertel 521: sub problem_web_to_edit_header {
1.159 albertel 522: my ($rndseed)=@_;
1.406 albertel 523: my $result .= '<div class="LC_edit_problem_header">';
524:
525: if (!$Apache::lonhomework::parsing_a_task) {
526: $result .=
527: '<div class="LC_edit_problem_header_title">'.
528: &mt('Problem Testing').
529: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
530: '</div>';
531: } else {
532: $result .=
533: '<div class="LC_edit_problem_header_title">'.
534: &mt('Task Testing').
535: '</div>';
536: }
537:
1.315 albertel 538: my $show_all_foils_text =
539: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 540: &mt('Show All Instances')
541: : &mt('Show All Foils');
1.315 albertel 542:
1.452 bisitz 543: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
544: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 545: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 546: $show_all.= ' /> '.$show_all_foils_text
547: .'</label></span>';
1.406 albertel 548:
549:
1.384 albertel 550:
1.406 albertel 551: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 552: if (!$Apache::lonhomework::parsing_a_task) {
553: $result.="
1.406 albertel 554: <div class='LC_edit_problem_header_row1'>
555: <span class=\"LC_nobreak\">
1.405 albertel 556: ".&mt("Problem Status:")."
1.235 albertel 557: <select name='problemstate'>
1.270 albertel 558: <option value=''></option>
1.235 albertel 559: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
560: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
561: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
562: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
563: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
564: </select>
1.406 albertel 565: </span>
566: <span class=\"LC_nobreak\">
1.405 albertel 567: ".&mt("Problem Type:")."
1.235 albertel 568: <select name='problemtype'>
1.270 albertel 569: <option value=''></option>
1.242 albertel 570: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 571: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 572: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 573: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
574: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
575: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 576: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.465.2.7 raeburn 577: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 578: </select>
1.406 albertel 579: </span>
580: $show_all
581: </div>
582: <div class='LC_edit_problem_header_row2'>
583: <span class=\"LC_nobreak\">
1.405 albertel 584: ".&mt("Feedback Mode:")."
1.235 albertel 585: <select name='problemstatus'>
586: <option value=''></option>
1.242 albertel 587: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 588: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
589: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 590: </select>
1.406 albertel 591: </span>
592: ";
593:
1.376 albertel 594: } elsif ($Apache::lonhomework::parsing_a_task) {
595: $result.="
1.406 albertel 596: <div class='LC_edit_problem_header_row1'>
597: <span class=\"LC_nobreak\">
1.405 albertel 598: ".&mt("Problem Status:")."
1.376 albertel 599: <select name='problemstate'>
600: <option value=''></option>
601: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
602: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
603: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
604: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
605: </select>
1.406 albertel 606: </span>
607: $show_all
608: ";
609: }
610: $result.='
611: <span class="LC_nobreak">
612: '.&mt('Apply style file: ').'
613: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
614: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
615: </span>
1.422 www 616: </div>
617: <div class="LC_edit_problem_header_row1">'.
618: &Apache::lonxml::renderingoptions().'
1.406 albertel 619: </div>
620: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
621: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
622: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
623: </div>
1.453 bisitz 624: <hr />
1.406 albertel 625: <div class="LC_edit_problem_header_randomize_row">
626: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
627: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
628: <input type="text" name="rndseed" size="10" value="'.
629: $rndseed.'"
630: onchange="javascript:document.lonhomework.changerandseed.click()" />';
631:
632: if (!$Apache::lonhomework::parsing_a_task) {
633: my $numtoanalyze=$env{'form.numtoanalyze'};
634: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 635: $result .= '<span class="LC_nobreak">'.
636: &mt('[_1] for [_2] versions.',
1.416 raeburn 637: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 638: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
639: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 640: $numtoanalyze.'" size="5" />').
641: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
642: '</span>';
643:
1.313 albertel 644: }
1.406 albertel 645:
646: $result.='
647: </div>
1.453 bisitz 648: <hr />
1.447 bisitz 649: <div>';
1.416 raeburn 650: $result.='<input type="hidden" name="problemmode" value="view" />';
651: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
652: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
653: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
654: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 655: $result.='
656: </div>
1.453 bisitz 657: <hr />
1.409 albertel 658: '.&Apache::lonxml::message_location().'
1.406 albertel 659: </div>';
1.159 albertel 660: return $result;
1.48 albertel 661: }
662:
1.65 albertel 663: sub initialize_storage {
1.357 albertel 664: my ($given_symb) = @_;
1.353 albertel 665: undef(%Apache::lonhomework::results);
666: undef(%Apache::lonhomework::history);
1.357 albertel 667: my ($symb,$courseid,$domain,$name) =
1.367 albertel 668: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 669:
670: # anonymous users (CODEd exams) have no data
671: if ($name eq 'anonymous'
672: && !defined($domain)) {
673: return;
674: }
675:
1.333 albertel 676: if ($env{'request.state'} eq 'construct'
677: || $symb eq ''
678: || $Apache::lonhomework::type eq 'practice') {
679:
680: my $namespace = $symb || $env{'request.uri'};
681: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 682: ($env{'form.resetdata'} eq &mt('New Problem Variation')
683: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 684: $env{'form.newrandomization'} eq &mt('New Randomization')) {
685: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
686: &Apache::lonxml::debug("Attempt reset");
687: }
1.159 albertel 688: %Apache::lonhomework::history=
1.333 albertel 689: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 690: my ($temp)=keys %Apache::lonhomework::history ;
691: &Apache::lonxml::debug("Return message of $temp");
692: } else {
693: %Apache::lonhomework::history=
694: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
695: }
1.353 albertel 696:
1.159 albertel 697: #ignore error conditions
1.67 albertel 698: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 699: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 700: }
701:
1.435 jms 702: =pod
703:
704: =item finalize_storage()
705:
706: Stores away the result has to a student's environment
707: checks form.grade_ for specific values, other wises stores
708: to the running users environment
709: Will increment totals for attempts, students, and corrects
710: if running user has student role.
711:
712: =cut
713:
714:
1.65 albertel 715: sub finalize_storage {
1.357 albertel 716: my ($given_symb) = @_;
1.159 albertel 717: my $result;
1.289 albertel 718: if (%Apache::lonhomework::results) {
1.323 albertel 719: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
720: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 721: my ($symb,$courseid,$domain,$name) =
1.367 albertel 722: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 723: if ($env{'request.state'} eq 'construct'
724: || $symb eq ''
725: || $Apache::lonhomework::type eq 'practice') {
726: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 727: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 728: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 729: $namespace,'',$domain,$name);
1.159 albertel 730: &Apache::lonxml::debug('Construct Store return message:'.$result);
731: } else {
732: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
733: $symb,$courseid,$domain,$name);
734: &Apache::lonxml::debug('Store return message:'.$result);
1.465.2.3 raeburn 735: &store_aggregates($symb,$courseid);
1.159 albertel 736: }
1.323 albertel 737: } else {
738: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 739: }
1.159 albertel 740: return $result;
1.65 albertel 741: }
742:
1.435 jms 743: =pod
744:
745: item store_aggregates()
746:
747: Sends hash of values to be incremented in nohist_resourcetracker.db
748: for the course. Increments total number of attempts, unique students
749: and corrects for each part for an instance of a problem, as appropriate.
750:
751: =cut
752:
1.285 raeburn 753: sub store_aggregates {
754: my ($symb,$courseid) = @_;
1.465.2.7 raeburn 755: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 756: my @parts;
1.288 albertel 757: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
758: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 759: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 760: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 761: push(@parts, $1);
1.285 raeburn 762: }
763: }
1.286 albertel 764: foreach my $part (@parts) {
1.465.2.3 raeburn 765: if ($env{'request.role'} =~/^st/) {
766: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
767: eq 'APPROX_ANS' ||
768: $Apache::lonhomework::results{'resource.'.$part.'.award'}
769: eq 'EXACT_ANS') {
770: $aggregate{$symb."\0".$part."\0correct"} = 1;
771: }
772: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
773: $aggregate{$symb."\0".$part."\0users"} = 1;
774: } else {
775: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
776: if ($last_reset) {
777: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
778: $aggregate{$symb."\0".$part."\0users"} = 1;
779: }
780: }
781: }
782: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 783: }
1.465.2.3 raeburn 784: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.465.2.7 raeburn 785: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
786: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
787: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
788: $randtrycounter{$symb."\0".$part} = 1;
789: } else {
790: $anoncounter{$symb."\0".$part} = 1;
791: }
1.465.2.3 raeburn 792: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
793: if ($needsrelease) {
794: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
795: if ($curr_required eq '') {
796: &Apache::lonnet::update_released_required($needsrelease);
797: } else {
798: my ($currmajor,$currminor) = split(/\./,$curr_required);
799: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
800: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
801: &Apache::lonnet::update_released_required($needsrelease);
802: }
1.292 raeburn 803: }
804: }
1.285 raeburn 805: }
806: }
1.292 raeburn 807: if (keys (%aggregate) > 0) {
1.289 albertel 808: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 809: $cdomain,$cname);
810: }
1.465.2.3 raeburn 811: if (keys(%anoncounter) > 0) {
1.465.2.8 raeburn 812: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
813: $cdomain,$cname);
1.465.2.3 raeburn 814: }
1.465.2.7 raeburn 815: if (keys(%randtrycounter) > 0) {
1.465.2.8 raeburn 816: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
817: $cdomain,$cname);
1.465.2.7 raeburn 818: }
1.292 raeburn 819: }
1.289 albertel 820:
1.65 albertel 821: sub checkout_msg {
1.211 albertel 822: my %lt=&Apache::lonlocal::texthash(
823: 'resource'=>'The resource needs to be checked out',
824: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
825: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
826: 'checkout'=>'Check out Exam for Viewing',
827: 'checkout?'=>'Check out Exam?');
1.352 albertel 828: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 829: return (<<ENDCHECKOUT);
1.211 albertel 830: <h2>$lt{'resource'}</h2>
831: <p>$lt{'id_expln'}</p>
1.449 bisitz 832: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 833: <form name="checkout" method="post" action="$uri">
1.91 albertel 834: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 835: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 836: </form>
837: ENDCHECKOUT
838: }
839:
1.252 albertel 840: sub firstaccess_msg {
1.253 albertel 841: my ($time,$symb)=@_;
1.414 albertel 842: my $result;
843: my @interval=&Apache::lonnet::EXT("resource.0.interval");
844: if ($interval[1] eq 'map') {
845: my ($map)=&Apache::lonnet::decode_symb($symb);
846: my $foldertitle=&Apache::lonnet::gettitle($map);
847:
848: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 849: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
850: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
851: ,$foldertitle,$time)."</h2>";
1.414 albertel 852: } elsif ($interval[1] eq 'course') {
853: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 854: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
855: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
856: ,$course,$time)."</h2>";
1.414 albertel 857: } else {
858: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 859: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
860: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
861: ,$title,$time)."</h2>";
1.414 albertel 862: }
1.352 albertel 863: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 864: my $buttontext = &mt('Show Resource');
865: my $timertext = &mt('Start Timer?');
1.414 albertel 866: $result .= (<<ENDCHECKOUT);
1.444 bisitz 867: <form name="markaccess" method="post" action="$uri">
1.252 albertel 868: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 869: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 870: </form>
871: ENDCHECKOUT
1.414 albertel 872: return $result;
1.252 albertel 873: }
874:
1.204 albertel 875: sub init_problem_globals {
876: my ($type)=@_;
877: #initialize globals
1.308 foxr 878: # For problems, we start out in part 0 (outside a <part> tag).
879: # and part 0 is used to describe the main body of the <problem>
880: #
1.204 albertel 881: if ($type eq 'problem') {
882: $Apache::inputtags::part='0';
883: @Apache::inputtags::partlist=('0');
1.405 albertel 884: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 885: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 886:
1.266 albertel 887: } elsif ($type eq 'library') {
1.204 albertel 888: $Apache::inputtags::part='';
889: @Apache::inputtags::partlist=();
1.405 albertel 890: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 891: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 892:
1.304 albertel 893: } elsif ($type eq 'Task') {
894: $Apache::inputtags::part='0';
895: @Apache::inputtags::partlist=('0');
1.405 albertel 896: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 897: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 898: }
1.465.2.11 raeburn 899: @Apache::functionplotresponse::callscripts=();
1.204 albertel 900: @Apache::inputtags::responselist = ();
901: @Apache::inputtags::importlist = ();
902: @Apache::inputtags::previous=();
903: @Apache::inputtags::previous_version=();
904: $Apache::structuretags::printanswer='No';
905: @Apache::structuretags::whileconds=();
906: @Apache::structuretags::whilebody=();
907: @Apache::structuretags::whileline=();
908: $Apache::lonhomework::scantronmode=0;
909: undef($Apache::lonhomework::name);
1.358 albertel 910: undef($Apache::lonhomework::default_type);
911: undef($Apache::lonhomework::type);
1.204 albertel 912: }
913:
914: sub reset_problem_globals {
915: my ($type)=@_;
916: undef(%Apache::lonhomework::history);
917: undef(%Apache::lonhomework::results);
918: undef($Apache::inputtags::part);
1.208 albertel 919: #don't undef this, lonhomework.pm takes care of this, we use this to
920: #detect if we try to do 2 problems in one file
921: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 922: undef($Apache::lonhomework::name);
1.358 albertel 923: undef($Apache::lonhomework::default_type);
924: undef($Apache::lonhomework::type);
925: undef($Apache::lonhomework::scantronmode);
926: undef($Apache::lonhomework::ignore_response_errors);
1.465.2.11 raeburn 927: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 928: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 929: }
930:
1.241 albertel 931: sub set_problem_state {
1.240 albertel 932: my ($part)=@_;
1.284 albertel 933: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 934: $Apache::lonhomework::history{"resource.$part.solved"}=
935: 'correct_by_student';
936: }
937: }
938:
1.241 albertel 939: sub get_problem_status {
940: my ($part)=@_;
1.267 albertel 941: my $problem_status;
1.284 albertel 942: if ($env{'request.state'} eq 'construct' &&
943: defined($env{'form.problemstatus'})) {
944: $problem_status=$env{'form.problemstatus'};
1.267 albertel 945: } else {
946: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
947: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 948: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 949: }
950: return $problem_status;
951: }
952:
1.9 albertel 953: sub start_problem {
1.326 albertel 954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 955:
1.311 foxr 956: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 957: if (!$Apache::lonxml::metamode) {
958: &Apache::lonxml::startredirection();
959: }
1.311 foxr 960:
1.308 foxr 961: # Problems don't nest and we don't allow more than one <problem> in
962: # a .problem file.
963: #
1.184 albertel 964: if ( $Apache::inputtags::part ne '' ||
965: $Apache::lonhomework::parsing_a_problem) {
966: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 967: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 968: return '';
969: }
1.184 albertel 970:
971: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 972: &init_problem_globals('problem');
1.166 albertel 973:
1.284 albertel 974: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 975: $Apache::lonhomework::scantronmode=1;
976: }
1.161 albertel 977:
1.159 albertel 978: if ($target ne 'analyze') {
1.415 raeburn 979: my $type = &Apache::lonnet::EXT('resource.0.type');
980: $Apache::lonhomework::type=$type;
1.284 albertel 981: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 982: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 983: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 984: }
1.332 albertel 985: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 986: }
1.164 albertel 987: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 988: my $uri=$env{'request.uri'};
1.159 albertel 989: if ($uri=~/\.(\w+)$/) {
990: $Apache::lonhomework::type=$1;
991: &Apache::lonxml::debug("Using type of $1");
992: } else {
993: $Apache::lonhomework::type='problem';
994: &Apache::lonxml::debug("Using default type, problem, :$uri:");
995: }
1.87 albertel 996: }
1.301 albertel 997: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 998:
1.363 albertel 999: &initialize_storage();
1.389 albertel 1000: if ($target ne 'analyze'
1001: && $env{'request.state'} eq 'construct') {
1002: &set_problem_state('0');
1003: }
1004:
1.366 albertel 1005: if ($target eq 'web') {
1006: &Apache::lonxml::debug(" grading history ");
1007: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1008: }
1.363 albertel 1009:
1.159 albertel 1010: #added vars to the scripting enviroment
1.213 albertel 1011: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1012: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1013: &Apache::run::run($expression,$safeeval);
1.159 albertel 1014: my $status;
1015: my $accessmsg;
1016:
1.343 albertel 1017: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1018: my ($result,$form_tag_start);
1.354 albertel 1019: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1020: || $target eq 'edit') {
1.350 albertel 1021: ($result,$form_tag_start) =
1022: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1023: $name);
1024: }
1025:
1.284 albertel 1026: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1027:
1.465.2.7 raeburn 1028: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1029: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1030: $target eq 'tex') {
1031: #handle exam checkout
1032: if ($Apache::lonhomework::type eq 'exam') {
1033: my $token=
1034: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 1035: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 1036: $token=&Apache::lonxml::maketoken();
1037: $Apache::lonhomework::history{"resource.0.outtoken"}=
1038: $token;
1039: }
1.343 albertel 1040: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 1041: }
1.284 albertel 1042: if ($env{'form.markaccess'}) {
1.414 albertel 1043: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1044: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1045: }
1.465.2.7 raeburn 1046:
1047: ($status,$accessmsg,my $slot_name,my $slot) =
1048: &Apache::lonhomework::check_slot_access('0','problem');
1049: push (@Apache::inputtags::status,$status);
1050:
1.159 albertel 1051: #handle rand seed in construction space
1.465.2.7 raeburn 1052: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1053: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 1054:
1.333 albertel 1055: if ($env{'request.state'} ne "construct" &&
1056: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1057: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1058: $rndseed.'" />'.
1059: '<input type="submit" name="resetdata"
1060: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1061: if (exists($env{'form.username'})) {
1062: $form_tag_start.=
1.164 albertel 1063: '<input type="hidden" name="username"
1.284 albertel 1064: value="'.$env{'form.username'}.'" />';
1.334 albertel 1065: }
1.462 raeburn 1066: if ($env{'request.role.adv'}) {
1067: $form_tag_start.= ' <label class="LC_nobreak">'
1068: .'<input type="checkbox" name="showallfoils"';
1069: if (defined($env{'form.showallfoils'})) {
1070: $form_tag_start.=' checked="checked"';
1071: }
1072: $form_tag_start.= ' /> '
1073: .&mt('Show All Foils')
1074: .'</label>';
1075: }
1.417 www 1076: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1077: $form_tag_start.=&practice_problem_header();
1.417 www 1078: }
1.462 raeburn 1079: $form_tag_start.='<hr />';
1.465.2.7 raeburn 1080: } elsif (($env{'request.state'} ne "construct") &&
1081: ($Apache::lonhomework::type eq 'randomizetry') &&
1082: ($status eq 'CAN_ANSWER')) {
1083: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1084: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1085: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1086: }
1.324 albertel 1087:
1.159 albertel 1088: my $expression='$external::datestatus="'.$status.'";';
1089: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1090: &Apache::run::run($expression,$safeeval);
1091: &Apache::lonxml::debug("Got $status");
1.324 albertel 1092:
1.159 albertel 1093: if (( $status eq 'CLOSED' ) ||
1094: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1095: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1096: ( $status eq 'BANNED') ||
1.216 albertel 1097: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1098: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1099: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1100: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1101: $style);
1.159 albertel 1102: if ( $target eq "web" ) {
1.343 albertel 1103: my $msg;
1.159 albertel 1104: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1105: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1106: } elsif ($status eq 'NOT_IN_A_SLOT') {
1107: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1108: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1109: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1110: }
1.216 albertel 1111: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1112: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1113: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1114: $msg.=&checkout_msg();
1.252 albertel 1115: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1116: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1117: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1118: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1119: }
1120: $result.=$msg.'<br />';
1121: } elsif ($target eq 'tex') {
1.332 albertel 1122: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1123: : '\begin{minipage}{\textwidth}';
1.443 foxr 1124: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1125: $startminipage.'\vskip 0 mm';
1.159 albertel 1126: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1127: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1128: } else {
1.211 albertel 1129: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1130: }
1131: }
1.324 albertel 1132: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1133: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1134: $style);
1.324 albertel 1135: if ($target eq 'web') {
1.375 albertel 1136: $result .=
1137: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1138: } elsif ($target eq 'grade') {
1139: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1140: 'problem');
1141: }
1.159 albertel 1142: } elsif ($target eq 'web') {
1.360 albertel 1143: if ($status eq 'CAN_ANSWER'
1144: && $slot_name ne ''
1145: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1146: # unproctored slot access, self checkin
1147: &Apache::bridgetask::check_in('problem',undef,undef,
1148: $slot_name);
1149: }
1.368 albertel 1150: $result.="\n $form_tag_start \t".
1.227 albertel 1151: '<input type="hidden" name="submitted" value="yes" />';
1152: # create a page header and exit
1.284 albertel 1153: if ($env{'request.state'} eq "construct") {
1154: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1155: if ($Apache::lonhomework::type eq 'practice') {
1156: $result.= '<input type="submit" name="resetdata" '.
1157: 'value="'.&mt('New Problem Variation').'" />'.
1158: &practice_problem_header().'<hr />';
1159: }
1.227 albertel 1160: }
1161: # if we are viewing someone else preserve that info
1.284 albertel 1162: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1163: foreach my $field ('symb','courseid','domain','username') {
1164: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1165: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1166: }
1.465.2.7 raeburn 1167: foreach my $field ('questiontype','rndseed') {
1168: if ($env{"form.grade_$field"} ne '') {
1169: $result .= '<input type="hidden" name="grade_'.$field.
1170: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1171: }
1172: }
1173:
1.159 albertel 1174: }
1175: } elsif ($target eq 'tex') {
1.319 foxr 1176: $result .= 'INSERTTEXFRONTMATTERHERE';
1177:
1.99 sakharuk 1178: }
1.159 albertel 1179: } elsif ($target eq 'edit') {
1.343 albertel 1180: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1181: $Apache::lonxml::warnings_error_header=
1182: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 1183: my $temp=&Apache::edit::insertlist($target,$token);
1184: $result.=$temp;
1185: } elsif ($target eq 'modified') {
1186: $result=$token->[4];
1187: } else {
1188: # page_start returned a starting result, delete it if we don't need it
1189: $result = '';
1.99 sakharuk 1190: }
1.159 albertel 1191: return $result;
1.9 albertel 1192: }
1193:
1194: sub end_problem {
1.159 albertel 1195: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1196: my $result;
1.310 foxr 1197:
1.321 albertel 1198: if (!$Apache::lonxml::metamode) {
1199: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1200: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1201: }
1.319 foxr 1202:
1203: if ($target eq 'tex') {
1.321 albertel 1204: # Figure out the front matter and replace the
1205: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1206: # this in end_problem because whether or not we display due
1207: # dates depends on whether due dates have already been
1208: # displayed in the problem parts.
1209:
1.319 foxr 1210: my $frontmatter = '';
1211: my $startminipage = '';
1212: if (not $env{'form.problem_split'}=~/yes/) {
1213: $startminipage = '\begin{minipage}{\textwidth}';
1214: }
1215: my $id = $Apache::inputtags::part;
1216: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1217: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1218: my @packages = split /,/,$packages;
1219: my $allow_print_points = 0;
1220: foreach my $partial_key (@packages) {
1221: if ($partial_key=~m/^part_0$/) {
1222: $allow_print_points=1;
1223: }
1224: }
1225: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1226: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1227: if (lc($env{'course.'.$env{'request.course.id'}.
1228: '.disableexampointprint'}) eq 'yes') {
1229: $allow_print_points=0;
1230: }
1231: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1232: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.319 foxr 1233: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1234: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1235:
1236: # Figure out what the due date is and if we need to print
1237: # it in the problem header. We have been logging the
1238: # last due date written to file.
1239:
1240: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1241: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1242: my $duedate_text = &mt('Due date: [_1]'
1243: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1244: my $temp_file;
1245: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1246:
1247: # Figure out what the last printed due date is or set it
1248: # to the epoch if no duedates have been printed.
1249:
1250: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1251: if (-e $filename) {
1252: $temp_file = Apache::File->new($filename);
1253: my @due_file = <$temp_file>;
1254: $due_file_content = $due_file[$#due_file];
1255: chomp $due_file_content;
1256: }
1257:
1258: # We display the due date iff it is not the same as the last
1259: # duedate in problem header ($due_file_content), and
1260: # none of our parts displayed a duedate.
1261: #
1262: my $parts_with_displayduedate;
1263: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1264: $parts_with_displayduedate =
1265: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1266: } else {
1267: $parts_with_displayduedate = 0;
1268: }
1269: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1270: $temp_file = Apache::File->new('>'.$filename);
1271: print $temp_file "$duetime\n";
1272: if (not $env{'request.symb'} =~ m/\.page_/) {
1273: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1274: $frontmatter .= $begin_doc.
1.448 bisitz 1275: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1276: } else {
1277: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1278: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1279: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1280: }
1.319 foxr 1281: }
1282: } else {
1.448 bisitz 1283: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1284: }
1285: } else {
1286: if (not $env{'request.symb'} =~ m/\.page_/) {
1287: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1288: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1289: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1290: }
1.319 foxr 1291: } else {
1.381 albertel 1292: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1293: }
1294: }
1295: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1296: }
1297:
1.159 albertel 1298: my $status=$Apache::inputtags::status['-1'];
1299: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1300: $target eq 'tex') {
1.249 albertel 1301: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1302: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1303: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1304: &Apache::inputtags::grade;
1.324 albertel 1305: } elsif ($status eq 'NEEDS_CHECKIN') {
1306: # no need to grade, and don't want to hide data
1.249 albertel 1307: } else {
1308: # move any submission data to .hidden
1309: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1310: }
1.159 albertel 1311: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1312: $Apache::inputtags::part eq '0' &&
1.252 albertel 1313: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1314: # if part is zero, no <part>s existed, so we need show the current
1315: # grading status
1316: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1317: $result.= $gradestatus;
1318: }
1319: if (
1.284 albertel 1320: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1321: ($target eq 'answer') || ($target eq 'tex')
1322: ) {
1.227 albertel 1323: if ($target ne 'tex' &&
1.284 albertel 1324: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1325: $result.="</form>";
1.159 albertel 1326: }
1327: if ($target eq 'web') {
1.346 albertel 1328: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1329: } elsif ($target eq 'tex') {
1.178 sakharuk 1330: my $endminipage = '';
1.284 albertel 1331: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1332: $endminipage = '\end{minipage}';
1333: }
1.284 albertel 1334: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1335: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1336: } else {
1.262 sakharuk 1337: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1338: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1339: $result .= $endminipage.'\end{document} ';
1340: } else {
1.382 albertel 1341: $result .= $endminipage;
1.262 sakharuk 1342: }
1.159 albertel 1343: }
1344: }
1345: }
1.465.2.11 raeburn 1346: if ($target eq 'web') {
1347: $result.=&Apache::functionplotresponse::init_script();
1348: }
1.159 albertel 1349: if ($target eq 'grade') {
1350: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1351: &finalize_storage();
1352: }
1.284 albertel 1353: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1354: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1355: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1356: # normally we get it from above, but in CSTR
1.172 albertel 1357: # we always show answer mode too.
1.159 albertel 1358: }
1359: } elsif ($target eq 'meta') {
1360: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1361: @Apache::inputtags::response=();
1.159 albertel 1362: $result=&Apache::response::mandatory_part_meta;
1363: }
1.215 albertel 1364: $result.=&Apache::response::meta_part_order();
1.258 albertel 1365: $result.=&Apache::response::meta_response_order();
1.159 albertel 1366: } elsif ($target eq 'edit') {
1367: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1368: $result .= &problem_edit_footer();
1.320 albertel 1369: } elsif ($target eq 'modified') {
1370: $result .= $token->[2];
1.159 albertel 1371: }
1.155 albertel 1372:
1.284 albertel 1373: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1374: &Apache::inputtags::check_for_duplicate_ids();
1375: }
1.204 albertel 1376:
1377: &reset_problem_globals('problem');
1.159 albertel 1378:
1379: return $result;
1.48 albertel 1380: }
1381:
1.108 albertel 1382:
1.48 albertel 1383: sub start_library {
1.159 albertel 1384: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1385: my ($result,$form_tag_start);
1.371 albertel 1386: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1387: &init_problem_globals('library');
1388: $Apache::lonhomework::type='problem';
1389: }
1.159 albertel 1390: if ($target eq 'edit') {
1.343 albertel 1391: ($result,$form_tag_start)=
1392: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1393: 'Edit');
1394: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1395: my $temp=&Apache::edit::insertlist($target,$token);
1396: $result.=$temp;
1397: } elsif ($target eq 'modified') {
1398: $result=$token->[4];
1.340 albertel 1399: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1400: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1401: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1402: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1403: ($result,$form_tag_start)=
1404: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1405: $name);
1.465.2.7 raeburn 1406: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1407: $result.=" \n $form_tag_start".
1.159 albertel 1408: '<input type="hidden" name="submitted" value="yes" />';
1409: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1410: if ($Apache::lonhomework::type eq 'practice') {
1411: $result.= '<input type="submit" name="resetdata" '.
1412: 'value="'.&mt('New Problem Variation').'" />'.
1413: &practice_problem_header().'<hr />';
1414: }
1.159 albertel 1415: }
1416: return $result;
1.48 albertel 1417: }
1418:
1419: sub end_library {
1.159 albertel 1420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1421: my $result='';
1422: if ($target eq 'edit') {
1423: $result=&problem_edit_footer();
1.371 albertel 1424: } elsif ($target eq 'web'
1425: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1426: && $env{'request.state'} eq "construct") {
1.349 albertel 1427: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1428: }
1.371 albertel 1429: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1430: &reset_problem_globals('library');
1431: }
1.159 albertel 1432: return $result;
1.197 www 1433: }
1434:
1435: sub start_definetag {
1.326 albertel 1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1437:
1438: my $result;
1439:
1440: my $name = $token->[2]->{'name'};
1.326 albertel 1441: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1442: if ($target eq 'web') {
1443: if ($name=~/^\//) {
1444: $result=
1445: '<br /><table class="LC_sty_end"><tr><th>'.
1446: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1447: } else {
1448: $result=
1449: '<br /><table class="LC_sty_begin"><tr><th>'.
1450: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1451: }
1452: $skip = &HTML::Entities::encode($skip, '<>&"');
1453: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1454: }
1455: return $result;
1456: }
1457:
1458: sub end_definetag {
1459: return '';
1.1 albertel 1460: }
1461:
1462: sub start_block {
1.201 albertel 1463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1464:
1465: my $result;
1.1 albertel 1466:
1.339 albertel 1467: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1468: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1469: my $code = $token->[2]->{'condition'};
1.385 albertel 1470: if (defined($code) && $code ne '') {
1.137 albertel 1471: if (!$Apache::lonxml::default_homework_loaded) {
1472: &Apache::lonxml::default_homework_load($safeeval);
1473: }
1.131 albertel 1474: $result = &Apache::run::run($code,$safeeval);
1475: &Apache::lonxml::debug("block :$code: returned :$result:");
1476: } else {
1477: $result='1';
1478: }
1479: if ( ! $result ) {
1.201 albertel 1480: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1481: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1482: }
1483: $result='';
1484: } elsif ($target eq 'edit') {
1485: $result .=&Apache::edit::tag_start($target,$token);
1486: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1487: $token,40);
1488: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1489: } elsif ($target eq 'modified') {
1490: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1491: $safeeval,'condition');
1492: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1493: }
1.131 albertel 1494: return $result;
1.1 albertel 1495: }
1496:
1497: sub end_block {
1.167 www 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1499: my $result;
1500: if ($target eq "edit") {
1501: $result.= &Apache::edit::tag_end($target,$token,'');
1502: }
1503: return $result;
1504: }
1505:
1506: sub start_languageblock {
1.201 albertel 1507: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1508:
1509: my $result;
1510:
1.339 albertel 1511: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1512: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1513: my $include = $token->[2]->{'include'};
1514: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1515: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1516: # This should not even happen, since we should at least have the server language
1.398 www 1517: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1518: # Now loop over all languages in order of preference
1519: foreach my $preferred_language (@preferred_languages) {
1.394 www 1520: # If the languageblock has no arguments, show the contents
1.399 www 1521: $result=1;
1522: my $found=0;
1.394 www 1523: # Do we have an include argument?
1.398 www 1524: if ($include) {
1.394 www 1525: # If include is specified, by default, don't render the block
1.399 www 1526: $result=0;
1.398 www 1527: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1528: # ... but if my preferred language is included, render it
1.398 www 1529: if ($included_language eq $preferred_language) {
1.399 www 1530: $result=1;
1531: $found=1;
1.398 www 1532: }
1533: }
1534: }
1.394 www 1535: # Do we have an exclude argument?
1.398 www 1536: if ($exclude) {
1.399 www 1537: $result=1;
1.398 www 1538: foreach my $excluded_language (split(/\,/,$exclude)) {
1539: if ($excluded_language eq $preferred_language) {
1.399 www 1540: $result=0;
1541: $found=1;
1.398 www 1542: }
1543: }
1544: }
1.399 www 1545: if ($found) { last; }
1.398 www 1546: }
1.201 albertel 1547: if ( ! $result ) {
1548: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1549: $style);
1550: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1551: }
1552: $result='';
1.167 www 1553: } elsif ($target eq 'edit') {
1554: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1555: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1556: $token,40);
1.211 albertel 1557: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1558: $token,40);
1559: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1560: } elsif ($target eq 'modified') {
1561: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1562: $safeeval,'include',
1563: 'exclude');
1.167 www 1564: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1565: }
1566: return $result;
1567: }
1568:
1569: sub end_languageblock {
1.170 www 1570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1571: my $result;
1.201 albertel 1572: if ($target eq "edit") {
1.170 www 1573: $result.= &Apache::edit::tag_end($target,$token,'');
1574: }
1575: return $result;
1576: }
1577:
1.397 albertel 1578: {
1579: my %available_texts;
1580: sub start_translated {
1581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1582: &Apache::lonxml::register('Apache::structuretags',('lang'));
1583: undef(%available_texts);
1584: }
1585:
1586: sub end_translated {
1587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1588: my $result;
1589: #show the translation on viewable targets
1590: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1591: # or non-viewable targets, if it's embedded in something that
1592: # wants the output
1593: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1594: && &Apache::lonxml::in_redirection() ) ) {
1595: my @possibilities = keys(%available_texts);
1596: my $which =
1597: &Apache::loncommon::languages(\@possibilities) || 'default';
1598: $result = $available_texts{$which};
1599: }
1600: undef(%available_texts);
1601: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1602: return $result;
1603: }
1604:
1605:
1606: sub start_lang {
1607: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1608: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1609: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1610: &Apache::lonxml::startredirection();
1611: }
1612: return '';
1613: }
1614:
1615: sub end_lang {
1616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1617: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1618: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1619: my $result = &Apache::lonxml::endredirection();
1620: my $which = &Apache::lonxml::get_param('which',$parstack,
1621: $safeeval);
1.431 raeburn 1622: if ($which=~/\w/) {
1623: $available_texts{$which} = $result;
1624: }
1625: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1626: $safeeval);
1627: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1628: if ($language=~/\w/) {
1629: $available_texts{$language} = $result;
1630: }
1.427 bisitz 1631: }
1632:
1.397 albertel 1633: }
1634: return '';
1635: }
1636: }
1637:
1.170 www 1638: sub start_instructorcomment {
1.201 albertel 1639: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1640:
1641: my $result;
1642:
1.339 albertel 1643: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1644: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.465.2.1 raeburn 1645: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1646: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1647: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1648: $parser,$style);
1.170 www 1649: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1650: }
1651: $result='';
1652: } elsif ($target eq 'edit') {
1653: $result .=&Apache::edit::tag_start($target,$token);
1654: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1655: }
1656: return $result;
1657: }
1658:
1659: sub end_instructorcomment {
1.159 albertel 1660: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1661: my $result;
1662: if ($target eq "edit") {
1663: $result.= &Apache::edit::tag_end($target,$token,'');
1664: }
1665: return $result;
1.4 tsai 1666: }
1667:
1668: sub start_while {
1.326 albertel 1669: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1670:
1.160 albertel 1671: my $result;
1.339 albertel 1672: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1673: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1674: my $code = $token->[2]->{'condition'};
1.4 tsai 1675:
1.160 albertel 1676: push( @Apache::structuretags::whileconds, $code);
1677: if (!$Apache::lonxml::default_homework_loaded) {
1678: &Apache::lonxml::default_homework_load($safeeval);
1679: }
1680: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1681: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1682: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1683: push( @Apache::structuretags::whileline, $token->[5]);
1684: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1685: if ( $result ) {
1686: &Apache::lonxml::newparser($parser,\$bodytext);
1687: }
1688: } elsif ($target eq 'edit') {
1689: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1690: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1691: $token,40);
1692: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1693: } elsif ($target eq 'modified') {
1694: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1695: $safeeval,'condition');
1696: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1697: }
1.160 albertel 1698: return $result;
1.4 tsai 1699: }
1700:
1701: sub end_while {
1.159 albertel 1702: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1703: my $result;
1704:
1.339 albertel 1705: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1706: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1707: my $code = pop(@Apache::structuretags::whileconds);
1708: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1709: my $line = pop(@Apache::structuretags::whileline);
1710: my $return = &Apache::run::run($code,$safeeval);
1711: my $starttime=time;
1712: my $error=0;
1713: while ($return) {
1714: if (time-$starttime >
1715: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1716: $return = 0; $error=1; next;
1.161 albertel 1717: }
1718: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1719: if ($target eq 'grade' || $target eq 'answer' ||
1720: $target eq 'analyze') {
1721: # grade/answer/analyze should produce no output but if we
1722: # are redirecting, the redirecter should know what to do
1723: # with the output
1724: if (!$Apache::lonxml::redirection) { undef($result); }
1725: }
1.161 albertel 1726: $return = &Apache::run::run($code,$safeeval);
1727: }
1728: if ($error) {
1.430 bisitz 1729: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1730: }
1731: } elsif ($target eq "edit") {
1732: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1733: }
1.160 albertel 1734: return $result;
1.1 albertel 1735: }
1.6 tsai 1736:
1.160 albertel 1737: # <randomlist show="1">
1.6 tsai 1738: # <tag1>..</tag1>
1739: # <tag2>..</tag2>
1740: # <tag3>..</tag3>
1.160 albertel 1741: # ...
1.6 tsai 1742: # </randomlist>
1743: sub start_randomlist {
1.326 albertel 1744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1745: my $result;
1.339 albertel 1746: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1747: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1748: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1749: my $b_parser= HTML::LCParser->new(\$body);
1750: $b_parser->xml_mode(1);
1751: $b_parser->marked_sections(1);
1.159 albertel 1752: my $b_tok;
1753: my @randomlist;
1754: my $list_item;
1755: while($b_tok = $b_parser->get_token() ) {
1756: if($b_tok->[0] eq 'S') { # start tag
1757: # get content of the tag until matching end tag
1758: # get all text upto the matching tag
1759: # and push the content into @randomlist
1760: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1761: $b_parser);
1762: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1763: push(@randomlist,$list_item);
1764: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1765: # $list_item</b>";
1766: }
1767: if($b_tok->[0] eq 'T') { # text
1768: # what to do with text in between tags?
1769: # print "<b>TEXT $b_tok->[1]</b><br />";
1770: }
1771: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1772: # print "<b>END-TAG $b_tok->[1]</b><br />";
1773: # }
1774: }
1.303 albertel 1775: if (@randomlist) {
1776: my @idx_arr = (0 .. $#randomlist);
1777: &Apache::structuretags::shuffle(\@idx_arr);
1778: my $bodytext = '';
1779: my $show=$#randomlist;
1780: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1781: $showarg--;
1782: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1783: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1784: my @currlist;
1785: my $part = $Apache::inputtags::part;
1786: if ($part ne '') {
1787: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1788: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1789: if (!(grep(/^\Q$part\E$/,@currlist))) {
1790: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1791: }
1792: } else {
1793: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1794: }
1795: }
1796: }
1.303 albertel 1797: for(0 .. $show) {
1798: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1799: }
1800: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1801: }
1802: } elsif ($target eq 'edit' ) {
1803: $result .=&Apache::edit::tag_start($target,$token);
1804: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1805: $token,5);
1806: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1807: } elsif ($target eq 'modified' ) {
1808: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1809: $safeeval,'show');
1810: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1811: }
1812: return $result;
1.7 tsai 1813: }
1814:
1815: sub shuffle {
1816: my $a=shift;
1817: my $i;
1.303 albertel 1818: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1819: &Apache::response::pushrandomnumber();
1.159 albertel 1820: for($i=@$a;--$i;) {
1821: my $j=int(&Math::Random::random_uniform() * ($i+1));
1822: next if $i == $j;
1823: @$a[$i,$j] = @$a[$j,$i];
1824: }
1.251 albertel 1825: &Apache::response::poprandomnumber();
1.7 tsai 1826: }
1.6 tsai 1827: }
1828:
1829: sub end_randomlist {
1.159 albertel 1830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1831: my $result;
1832: if ($target eq 'edit' ) {
1833: $result=&Apache::edit::tag_end($target,$token,
1834: 'End Randomly Parsed Block');
1835: }
1836: return $result;
1.6 tsai 1837: }
1838:
1.283 albertel 1839: sub ordered_show_check {
1840: my $last_part=$Apache::inputtags::partlist[-2];
1841: my $in_order=
1842: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1843: my $in_order_show=1;
1844: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1845: $in_order_show=&Apache::response::check_status($last_part);
1846: }
1847: return $in_order_show;
1848: }
1849:
1.465.2.2 raeburn 1850: sub start_startpartmarker {
1851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1852: my $result='';
1853: if ($target eq 'edit') {
1854: $result=&Apache::edit::tag_start($target,$token);
1855: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1856: $result.=&Apache::edit::end_table();
1857:
1858: }
1859: return $result;
1860: }
1861:
1862: sub end_startpartmarker {
1863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1864: my @result;
1865: if ($target eq 'edit') { $result[1]='no'; }
1866: return @result;
1867: }
1868:
1869: sub start_endpartmarker {
1870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1871: my $result='';
1872: if ($target eq 'edit') {
1873: $result=&Apache::edit::tag_start($target,$token);
1874: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1875: $result.=&Apache::edit::end_table();
1876:
1877: }
1878: return $result;
1879: }
1880:
1881: sub end_endpartmarker {
1882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1883: my @result;
1884: if ($target eq 'edit') { $result[1]='no'; }
1885: return @result;
1886: }
1887:
1.11 albertel 1888: sub start_part {
1.326 albertel 1889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1890: if (!$Apache::lonxml::metamode) {
1891: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1892: # duedates.
1893: }
1.159 albertel 1894: my $result='';
1.386 albertel 1895: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1896: $Apache::inputtags::part=$id;
1.177 albertel 1897: push(@Apache::inputtags::partlist,$id);
1898: @Apache::inputtags::response=();
1.159 albertel 1899: @Apache::inputtags::previous=();
1900: @Apache::inputtags::previous_version=();
1.405 albertel 1901: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1902: &Apache::response::reset_params();
1903:
1.159 albertel 1904: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1905: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1906: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1907: my $in_order_show=&ordered_show_check();
1.214 albertel 1908: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1909: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1910: &Apache::run::run($expression,$safeeval);
1.159 albertel 1911:
1912: if ($target eq 'meta') {
1.224 www 1913: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1914: return &Apache::response::mandatory_part_meta.
1915: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1916: } elsif ($target eq 'web' || $target eq 'grade' ||
1917: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1918: if ($hidden || !$in_order_show) {
1.326 albertel 1919: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1920: } else {
1921: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1922: push (@Apache::inputtags::status,$status);
1923: my $expression='$external::datestatus="'.$status.'";';
1924: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1925: &Apache::run::run($expression,$safeeval);
1.284 albertel 1926: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1927: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1928: }
1.216 albertel 1929: if (( $status eq 'CLOSED' ) ||
1930: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1931: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1932: ( $status eq 'BANNED') ||
1933: ( $status eq 'UNAVAILABLE') ||
1934: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1935: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1936: $style);
1.159 albertel 1937: if ( $target eq "web" ) {
1.211 albertel 1938: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1939: } elsif ( $target eq 'tex' ) {
1.284 albertel 1940: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1941: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1942: } else {
1.211 albertel 1943: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1944: }
1.159 albertel 1945: }
1946: } else {
1947: if ($target eq 'tex') {
1.284 albertel 1948: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1949: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1950: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1951: } else {
1952: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1953: }
1.195 sakharuk 1954: }
1.159 albertel 1955: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1956: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1957: my @allkeys = split /,/,$allkeys;
1958: my $allow_print_points = 0;
1959: foreach my $partial_key (@allkeys) {
1.230 albertel 1960: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1961: if ($1 ne '0') {$allow_print_points=1;}
1962: }
1963: }
1.275 albertel 1964: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1965: if (defined($maxtries) && $maxtries < 0) {
1966: $allow_print_points=0;
1967: }
1.302 albertel 1968: if (lc($env{'course.'.$env{'request.course.id'}.
1969: '.disableexampointprint'}) eq 'yes') {
1970: $allow_print_points=0;
1971: }
1.463 foxr 1972: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1973: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1974:
1975: }
1.233 www 1976: } elsif ($target eq 'web') {
1.465.2.7 raeburn 1977: if ($status eq 'CAN_ANSWER') {
1978: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1979: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1980: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1981: my $num = scalar(@Apache::inputtags::partlist)-1;
1982: if ($probrandomize eq 'randomizetry') {
1983: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1984: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1985: } else {
1986: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1987: if ($probrandtries ne $reqtries) {
1988: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1989: }
1990: }
1991: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1992: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1993: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1994: }
1995: }
1.465.2.5 raeburn 1996: $result.='<a name="'.&escape($Apache::inputtags::part).'"></a>';
1.159 albertel 1997: }
1998: }
1999: }
2000: } elsif ($target eq 'edit') {
2001: $result.=&Apache::edit::tag_start($target,$token);
2002: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2003: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2004: ' '.
2005: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2006: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2007: } elsif ($target eq 'modified') {
2008: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2009: $safeeval,'id','display');
1.159 albertel 2010: if ($constructtag) {
1.225 albertel 2011: #limiting ids to only letters numbers, and space
1.224 www 2012: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2013: $result = &Apache::edit::rebuild_tag($token);
2014: }
2015: }
2016: return $result;
1.11 albertel 2017: }
2018:
2019: sub end_part {
1.159 albertel 2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2021: &Apache::lonxml::debug("in end_part $target ");
2022: my $status=$Apache::inputtags::status['-1'];
2023: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2024: my $in_order_show=&ordered_show_check();
1.321 albertel 2025: my $result;
2026: if (!$Apache::lonxml::metamode) {
2027: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2028: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2029: }
1.312 albertel 2030: if ($target eq 'grade') {
1.249 albertel 2031: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2032: !$hidden && $in_order_show) {
1.311 foxr 2033: $result.=&Apache::inputtags::grade;
1.249 albertel 2034: } else {
2035: # move any submission data to .hidden
2036: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2037: }
1.283 albertel 2038: } elsif (($target eq 'web' || $target eq 'tex') &&
2039: !$hidden && $in_order_show) {
1.159 albertel 2040: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2041: $target);
1.212 albertel 2042: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2043: $gradestatus='';
2044: }
1.311 foxr 2045: $result.=$gradestatus;
1.265 sakharuk 2046: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2047: } elsif ($target eq 'edit') {
1.311 foxr 2048: $result.=&Apache::edit::end_table();
1.322 albertel 2049: } elsif ($target eq 'modified') {
2050: $result .= $token->[2];
1.159 albertel 2051: }
2052: pop @Apache::inputtags::status;
2053: $Apache::inputtags::part='';
1.295 albertel 2054: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2055: return $result;
1.11 albertel 2056: }
1.1 albertel 2057:
1.25 albertel 2058: sub start_preduedate {
1.326 albertel 2059: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2060: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2061: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2062: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2063: if (!$Apache::lonhomework::scantronmode &&
2064: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2065: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2066: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2067: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2068: }
1.24 albertel 2069: }
1.159 albertel 2070: return '';
1.24 albertel 2071: }
2072:
1.25 albertel 2073: sub end_preduedate {
1.159 albertel 2074: return '';
1.24 albertel 2075: }
2076:
1.369 foxr 2077: # In all the modes where <postanswerdate> text is
2078: # displayable, all we do is eat up the text between the start/stop
2079: # tags if the conditions are not right to display it.
1.25 albertel 2080: sub start_postanswerdate {
1.326 albertel 2081: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2082: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2083: &Apache::lonnet::allowed('pav',
2084: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2085: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2086: $target eq 'tex' ) {
1.300 albertel 2087: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2088: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2089: (($target eq 'tex') && !$pav)) {
1.326 albertel 2090: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2091: }
2092: }
2093: return '';
1.24 albertel 2094: }
2095:
1.25 albertel 2096: sub end_postanswerdate {
1.159 albertel 2097: return '';
1.24 albertel 2098: }
2099:
1.25 albertel 2100: sub start_notsolved {
1.326 albertel 2101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2102: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2103: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2104: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2105: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2106: if ($gradestatus =~ /^correct/ &&
2107: &Apache::response::show_answer()) {
1.159 albertel 2108: &Apache::lonxml::debug("skipping");
1.326 albertel 2109: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2110: }
1.24 albertel 2111: }
1.159 albertel 2112: return '';
1.24 albertel 2113: }
2114:
1.25 albertel 2115: sub end_notsolved {
1.159 albertel 2116: return '';
1.24 albertel 2117: }
2118:
2119: sub start_solved {
1.326 albertel 2120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2121: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2122: $target eq 'tex') {
2123: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2124: if ($gradestatus !~ /^correct/ ||
2125: !&Apache::response::show_answer()) {
1.326 albertel 2126: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2127: }
1.24 albertel 2128: }
1.159 albertel 2129: return '';
1.24 albertel 2130: }
2131:
2132: sub end_solved {
1.248 albertel 2133: return '';
2134: }
2135:
2136: sub start_problemtype {
1.326 albertel 2137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2138: my $result;
1.339 albertel 2139: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2140: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2141: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2142: if (!defined($mode)) { $mode='show'; }
2143: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2144: my $found=0;
2145: foreach my $type (split(',',$for)) {
2146: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2147: }
2148: if ($mode eq 'show' && !$found) {
1.326 albertel 2149: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2150: }
2151: if ($mode eq 'hide' && $found) {
1.326 albertel 2152: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2153: }
2154: } elsif ($target eq 'edit') {
2155: $result .=&Apache::edit::tag_start($target,$token);
2156: $result.=&Apache::edit::select_arg('Mode:','mode',
2157: [['show','Show'],
2158: ['hide','Hide']]
2159: ,$token);
2160: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2161: [ ['exam','Exam/Quiz Problem'],
2162: ['survey','Survey'],
1.465 raeburn 2163: ['surveycred','Survey (with credit)'],
2164: ['anonsurvey','Anonymous Survey'],
2165: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2166: ['problem','Homework Problem'],
1.465.2.7 raeburn 2167: ['practice','Practice Problem'],
2168: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2169: ,$token);
2170: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2171: } elsif ($target eq 'modified') {
2172: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2173: $safeeval,'mode','for');
2174: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2175: }
2176: return $result;
2177: }
2178:
2179: sub end_problemtype {
1.159 albertel 2180: return '';
1.24 albertel 2181: }
1.34 albertel 2182:
2183: sub start_startouttext {
1.159 albertel 2184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2185: my @result=(''.'');
2186: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2187:
2188: my $nesting =
2189: &Apache::lonxml::set_state('outtext',
2190: &Apache::lonxml::get_state('outtext')+1);
2191: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2192: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2193: }
1.159 albertel 2194: return (@result);
1.34 albertel 2195: }
1.159 albertel 2196:
1.34 albertel 2197: sub end_startouttext {
1.326 albertel 2198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2199: my $result='';
2200: my $text='';
2201: if ($target eq 'edit') {
1.424 foxr 2202: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2203: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2204: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2205: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2206: .&Apache::edit::deletelist($target,$token)
1.465.2.4 raeburn 2207: .'</span></td>'
2208: .'<td align="left"><span id="math_'.$areaid.'" />'
2209: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2210: .'</td>'
2211: .'<td>'
2212: .&Apache::edit::insertlist($target,$token)
2213: .'</td>'
2214: .'<td align="right" valign="top">' .
2215: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2216: &Apache::edit::end_row().
1.362 albertel 2217: &Apache::edit::start_spanning_row()."\n".
1.255 www 2218: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2219: }
2220: if ($target eq 'modified') {
1.219 albertel 2221: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2222: }
2223: if ($target eq 'tex') {
2224: $result .= '\noindent ';
2225: }
2226: return $result;
1.34 albertel 2227: }
1.159 albertel 2228:
1.34 albertel 2229: sub start_endouttext {
1.159 albertel 2230: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2231: my $result='';
2232: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2233: if ($target eq "modified") {
2234: $result='<endouttext />'.
1.377 albertel 2235: &Apache::edit::handle_insertafter('startouttext');
2236: }
1.404 albertel 2237:
2238: my $nesting =
2239: &Apache::lonxml::set_state('outtext',
2240: &Apache::lonxml::get_state('outtext')-1);
2241: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2242: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2243: &Apache::lonxml::set_state('outtext', 0);
2244: }
1.159 albertel 2245: return $result;
1.34 albertel 2246: }
1.159 albertel 2247:
1.34 albertel 2248: sub end_endouttext {
1.159 albertel 2249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2250: my @result=('','');
2251: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2252: return (@result);
1.34 albertel 2253: }
1.159 albertel 2254:
1.45 albertel 2255: sub delete_startouttext {
1.326 albertel 2256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2257: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2258: my $text=$$parser['-1']->get_text("/endouttext");
2259: my $ntoken=$$parser['-1']->get_token();
2260: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2261: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2262: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2263: # they did the last time round
2264: &Apache::lonxml::increasedepth($ntoken);
2265: &Apache::lonxml::decreasedepth($ntoken);
2266: return 1;
1.193 www 2267: }
2268:
2269: sub start_simpleeditbutton {
2270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2271: my $result='';
1.284 albertel 2272: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2273: ($target eq 'web') &&
1.330 albertel 2274: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2275: my $url=$env{'request.noversionuri'};
1.193 www 2276: $url=~s/\?.*$//;
1.367 albertel 2277: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2278: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2279: # $result='<p class="LC_warning">'
2280: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2281: # .&Apache::loncommon::help_open_topic('Caching')
2282: # .'</p>';
1.451 bisitz 2283: $result.=&Apache::lonhtmlcommon::start_funclist()
2284: .&Apache::lonhtmlcommon::add_item_funclist(
2285: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2286: .&mt('Edit').'</a>')
2287: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2288:
1.193 www 2289: }
2290: return $result;
2291: }
2292:
2293: sub end_simpleeditbutton {
2294: return '';
1.45 albertel 2295: }
1.34 albertel 2296:
1.428 raeburn 2297: sub practice_problem_header {
2298: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2299: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2300: '</span>';
2301: }
2302:
1.465.2.7 raeburn 2303: sub randomizetry_problem_header {
2304: my ($problemstatus,$reqtries) = @_;
2305: my ($header,$text);
2306: if ($reqtries > 1) {
2307: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2308: if (($problemstatus eq 'no') ||
2309: ($problemstatus eq 'no_feedback_ever')) {
2310: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2311: } else {
2312: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2313: }
2314: } else {
2315: $header = &mt('New Problem Variation Each Try');
2316: if (($problemstatus eq 'no') ||
2317: ($problemstatus eq 'no_feedback_ever')) {
2318: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2319:
2320: } else {
2321: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2322: }
2323: }
2324: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2325: '<span class="LC_info">'.$text.'</span><hr />';
2326: }
2327:
2328: sub randomizetry_part_header {
2329: my ($problemstatus,$reqtries,$num) = @_;
2330: my ($header,$text);
2331: if ($reqtries eq 'none') {
2332: $header = &mt('No Question Variation');
2333: $text = &mt('For this question there will no new variation after a try.');
2334: } elsif ($reqtries > 1) {
2335: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2336: if (($problemstatus eq 'no') ||
2337: ($problemstatus eq 'no_feedback_ever')) {
2338: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2339: } else {
2340: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2341: }
2342: } else {
2343: $header = &mt('New Question Variation For Each Try');
2344: if (($problemstatus eq 'no') ||
2345: ($problemstatus eq 'no_feedback_ever')) {
2346: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2347: } else {
2348: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2349: }
2350: }
2351: my $output;
2352: if ($num > 1) {
2353: $output .= '<hr />';
2354: }
2355: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2356: '<span class="LC_info">'.$text.'</span><br /><br />';
2357: return $output;
2358: }
2359:
1.1 albertel 2360: 1;
2361: __END__
1.435 jms 2362:
2363: =pod
2364:
2365: =back
2366:
2367: =cut
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