Annotation of loncom/homework/structuretags.pm, revision 1.481
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.481 ! raeburn 4: # $Id: structuretags.pm,v 1.480 2010/12/19 21:12:20 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 {
1.469 www 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">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.478 raeburn 164: sub file_delchk_js {
165: my $delfilewarn = &mt('You have indicated you wish to delete some files previously included for submission.').'\\n'.
166: &mt('Deleted files will not be graded.').' '.
167: &mt('Submit Answer?');
168: return <<"ENDSCRIPT";
169: <script type="text/javascript">
170: function file_deletion_check(formname) {
171: var str = new RegExp("^HWFILE.+_delete\$");
172: var delfilecount = 0;
173: var elemnum = formname.elements.length;
174: if (elemnum == 0) {
175: return true;
176: }
177: for (i=0; i<formname.elements.length; i++) {
178: var id = formname.elements[i].id;
179: if (id != '') {
180: if (str.test(id)) {
181: if (formname.elements[i].type == 'checkbox') {
182: if (formname.elements[i].checked) {
183: delfilecount ++;
184: }
185: }
186: }
187: }
188: }
189: if (delfilecount > 0) {
190: if (confirm("$delfilewarn")) {
191: return true;
192: } else {
193: return false;
194: }
195: } else {
196: return true;
197: }
198: }
199: </script>
200: ENDSCRIPT
201: }
202:
1.48 albertel 203: sub page_start {
1.345 albertel 204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
205: $extra_head)=@_;
1.159 albertel 206: my %found;
1.207 albertel 207: foreach my $taginside (@$tagstack) {
1.159 albertel 208: foreach my $taglookedfor ('html','body','form') {
209: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
210: }
211: }
212:
1.343 albertel 213: if ($target eq 'tex') {
214: return
215: &Apache::londefdef::start_html($target,$token,$tagstack,
216: $parstack,$parser,$safeeval);
217: }
218:
1.474 raeburn 219: $extra_head .= &homework_js().
220: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
221: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
222: my %textarea_args = (
223: dragmath => 'math',
224: );
225: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 226: }
1.478 raeburn 227: my $is_task = ($env{'request.uri'} =~ /\.task$/);
228: if ($is_task) {
229: $extra_head .= &file_delchk_js();
230: }
1.425 raeburn 231:
1.344 albertel 232: my %body_args;
233: if (defined($found{'html'})) {
234: $body_args{'skip_phases'}{'head'}=1;
235: } else {
1.343 albertel 236:
1.345 albertel 237: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 238:
1.379 albertel 239: $extra_head .= &Apache::londefdef::generate_css_links();
240:
1.384 albertel 241: if ($env{'request.state'} eq 'construct') {
1.343 albertel 242: $extra_head.=&Apache::edit::js_change_detection().
243: "<script type=\"text/javascript\">\n".
244: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
245: &Apache::loncommon::browser_and_searcher_javascript().
246: "\n</script>\n";
247: }
1.159 albertel 248: }
1.343 albertel 249:
1.446 bisitz 250: my $pageheader = '';
1.344 albertel 251: if (defined($found{'body'})) {
252: $body_args{'skip_phases'}{'body'}=1;
253: } elsif (!defined($found{'body'})
254: && $env{'request.state'} eq 'construct') {
1.343 albertel 255: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 256: # Breadcrumbs for Construction Space
257: &Apache::lonhtmlcommon::clear_breadcrumbs();
258: &Apache::lonhtmlcommon::add_breadcrumb({
259: 'text' => 'Construction Space',
260: 'href' => &Apache::loncommon::authorspace(),
261: });
1.460 droeschl 262: # breadcrumbs (and tools) will be created
263: # in start_page->bodytag->innerregister
264:
1.450 bisitz 265: # FIXME Where are we?
266: # &Apache::lonhtmlcommon::add_breadcrumb({
267: # 'text' => 'Problem Editing', # 'Problem Testing'
268: # 'href' => '',
269: # });
1.460 droeschl 270: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 271: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 272: }
1.272 albertel 273: } elsif (!defined($found{'body'})) {
1.343 albertel 274: my %add_entries;
1.159 albertel 275: my $background=&Apache::lonxml::get_param('background',$parstack,
276: $safeeval);
1.343 albertel 277: if ($background ne '' ) {
278: $add_entries{'background'} = $background;
279: }
1.344 albertel 280:
1.290 albertel 281: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
282: $safeeval);
1.446 bisitz 283: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 284:
1.446 bisitz 285: $body_args{'bgcolor'} = $bgcolor;
286: # $body_args{'no_title'} = 1;
287: $body_args{'force_register'} = 1;
288: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 289: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 290: $body_args{'only_body'} = 1;
291: }
1.344 albertel 292: }
1.365 albertel 293: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 294: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
295: \%body_args);
1.446 bisitz 296: $page_start .= $pageheader;
1.462 raeburn 297: if (!defined($found{'body'})
298: && $env{'request.state'} ne 'construct'
299: && ($target eq 'web' || $target eq 'webgrade')) {
300:
301: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
302: if ($symb eq '' && !$publicuser) {
303: $page_start .= '<p class="LC_info">'
304: .&mt('Browsing resource, all submissions are temporary.')
305: .'</p>';
1.457 bisitz 306: }
1.344 albertel 307: }
308:
1.409 albertel 309: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 310: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 311: }
1.344 albertel 312:
1.159 albertel 313: my $form_tag_start;
314: if (!defined($found{'form'})) {
1.337 albertel 315: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 316: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 317: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 318: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 319: $form_tag_start.=$uri.'" ';
320: if ($target eq 'edit') {
321: $form_tag_start.=&Apache::edit::form_change_detection();
322: }
1.478 raeburn 323: if ($is_task) {
324: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
325: }
1.368 albertel 326: $form_tag_start.='>'."\n";
1.355 albertel 327:
328: my $symb=&Apache::lonnet::symbread();
329: if ($symb =~ /\S/) {
330: $symb=
331: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
332: $form_tag_start.=
1.368 albertel 333: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 334: }
1.159 albertel 335: }
1.343 albertel 336: return ($page_start,$form_tag_start);
1.105 albertel 337: }
338:
1.141 matthew 339: #use Time::HiRes();
1.105 albertel 340: sub get_resource_name {
1.159 albertel 341: my ($parstack,$safeeval)=@_;
1.388 foxr 342: my $name;
1.204 albertel 343: if (defined($Apache::lonhomework::name)) {
1.388 foxr 344: $name = $Apache::lonhomework::name;
345: } else {
346: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 347: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 348: if ($name eq '') {
349: $name=&Apache::lonnet::EXT('resource.title');
350: if ($name eq 'con_lost') { $name = ''; }
351: }
352: if ($name!~/\S+/) {
353: $name=$env{'request.uri'};
354: $name=~s-.*/([^/]+)$-$1-;
355: }
356: # The name has had html tags escaped:
357:
358: $name=~s/</</gs;
359: $name=~s/>/>/gs;
360:
361: $Apache::lonhomework::name=$name;
1.204 albertel 362: }
1.159 albertel 363: return $name;
1.105 albertel 364: }
365:
366: sub setup_rndseed {
1.479 raeburn 367: my ($safeeval,$target)=@_;
1.367 albertel 368: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 369: my ($questiontype,$set_safespace,$rndseed);
370: if ($target eq 'analyze') {
371: $questiontype = $env{'form.grade_questiontype'};
372: }
373: unless (defined($questiontype)) {
374: $questiontype = $Apache::lonhomework::type;
375: }
1.333 albertel 376: if ($env{'request.state'} eq "construct"
377: || $symb eq ''
378: || $Apache::lonhomework::type eq 'practice'
379: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 380: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 381: ['rndseed']);
1.284 albertel 382: $rndseed=$env{'form.rndseed'};
1.159 albertel 383: if (!$rndseed) {
1.162 albertel 384: $rndseed=$Apache::lonhomework::history{'rndseed'};
385: if (!$rndseed) {
386: $rndseed=time;
387: }
1.284 albertel 388: $env{'form.rndseed'}=$rndseed;
1.162 albertel 389: }
1.479 raeburn 390: if (($env{'request.state'} eq "construct") &&
391: ($Apache::lonhomework::type eq 'randomizetry')) {
392: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
393: if ($tries) {
394: $rndseed += $tries;
395: }
1.480 raeburn 396: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 397: }
1.374 albertel 398: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
399: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 400: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 401: srand(time);
402: $rndseed=int(rand(2100000000));
1.284 albertel 403: $env{'form.rndseed'}=$rndseed;
404: delete($env{'form.resetdata'});
405: delete($env{'form.newrandomization'});
1.159 albertel 406: }
1.187 albertel 407: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 408: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 409: }
1.247 albertel 410: if ($Apache::lonhomework::history{'resource.CODE'}) {
411: $rndseed=&Apache::lonnet::rndseed();
412: }
1.479 raeburn 413: $set_safespace = 1;
414: } elsif ($questiontype eq 'randomizetry') {
415: if ($target eq 'analyze') {
416: if (defined($env{'form.grade_rndseed'})) {
417: $rndseed = $env{'form.grade_rndseed'};
418: }
419: }
420: unless (($target eq 'analyze') && (defined($rndseed))) {
421: $rndseed=&Apache::lonnet::rndseed();
422: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
423: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
424: $curr_try ++;
425: }
426: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
427: $rndseed = $1;
428: }
429: if ($curr_try) {
430: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
431: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
432: my $inc = int(($curr_try-1)/$reqtries);
433: $rndseed += $inc;
434: } else {
435: $rndseed += $curr_try;
436: }
437: }
438: }
439: $set_safespace = 1;
440: }
441: if ($set_safespace) {
442: if ($safeeval) {
443: &Apache::lonxml::debug("Setting rndseed to $rndseed");
444: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
445: }
446: }
447: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
448: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 449: }
450: return $rndseed;
1.105 albertel 451: }
452:
1.268 albertel 453: sub remember_problem_state {
454: return '
1.284 albertel 455: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
456: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
457: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 458: }
459:
1.423 www 460: sub problem_edit_buttons {
461: return '
1.408 albertel 462: <div class="LC_edit_problem_discards">
1.416 raeburn 463: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 464: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 465: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 466: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 467: </div>
468: <div class="LC_edit_problem_saves">
1.416 raeburn 469: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
470: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 471: </div>';
472: }
473:
474: sub problem_edit_header {
475: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
476: &Apache::structuretags::remember_problem_state().'
477: <div class="LC_edit_problem_header">
478: <div class="LC_edit_problem_header_title">
479: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
480: </div>'.
481: &problem_edit_buttons().'
1.459 bisitz 482: <hr style="clear:both;" />
1.409 albertel 483: '.&Apache::lonxml::message_location().'
1.408 albertel 484: </div>
485: '.
1.458 bisitz 486: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 487: }
488:
489: sub problem_edit_footer {
1.412 albertel 490: return '</td></tr></table><br />
491: <div class="LC_edit_problem_footer">
1.453 bisitz 492: <hr />'.
1.423 www 493: &problem_edit_buttons().'
1.459 bisitz 494: <hr style="clear:both;" />
1.412 albertel 495: </div>
496: '.
1.342 albertel 497: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 498: }
499:
1.235 albertel 500: sub option {
501: my ($value,$name) = @_;
502: my $result ="<option value='".$value."' ";
1.284 albertel 503: if ($env{'form.'.$name} eq $value) {
1.235 albertel 504: $result.=" selected='on' ";
505: }
506: $result.='>';
507: return $result;
508: }
509:
1.105 albertel 510: sub problem_web_to_edit_header {
1.159 albertel 511: my ($rndseed)=@_;
1.406 albertel 512: my $result .= '<div class="LC_edit_problem_header">';
513:
514: if (!$Apache::lonhomework::parsing_a_task) {
515: $result .=
516: '<div class="LC_edit_problem_header_title">'.
517: &mt('Problem Testing').
518: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
519: '</div>';
520: } else {
521: $result .=
522: '<div class="LC_edit_problem_header_title">'.
523: &mt('Task Testing').
524: '</div>';
525: }
526:
1.315 albertel 527: my $show_all_foils_text =
528: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 529: &mt('Show All Instances')
530: : &mt('Show All Foils');
1.315 albertel 531:
1.452 bisitz 532: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
533: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 534: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 535: $show_all.= ' /> '.$show_all_foils_text
536: .'</label></span>';
1.406 albertel 537:
538:
1.384 albertel 539:
1.406 albertel 540: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 541: if (!$Apache::lonhomework::parsing_a_task) {
542: $result.="
1.406 albertel 543: <div class='LC_edit_problem_header_row1'>
544: <span class=\"LC_nobreak\">
1.405 albertel 545: ".&mt("Problem Status:")."
1.235 albertel 546: <select name='problemstate'>
1.270 albertel 547: <option value=''></option>
1.235 albertel 548: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
549: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
550: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
551: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
552: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
553: </select>
1.406 albertel 554: </span>
555: <span class=\"LC_nobreak\">
1.405 albertel 556: ".&mt("Problem Type:")."
1.235 albertel 557: <select name='problemtype'>
1.270 albertel 558: <option value=''></option>
1.242 albertel 559: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 560: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 561: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 562: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
563: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
564: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 565: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 566: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 567: </select>
1.406 albertel 568: </span>
569: $show_all
570: </div>
571: <div class='LC_edit_problem_header_row2'>
572: <span class=\"LC_nobreak\">
1.405 albertel 573: ".&mt("Feedback Mode:")."
1.235 albertel 574: <select name='problemstatus'>
575: <option value=''></option>
1.242 albertel 576: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 577: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
578: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 579: </select>
1.406 albertel 580: </span>
581: ";
582:
1.376 albertel 583: } elsif ($Apache::lonhomework::parsing_a_task) {
584: $result.="
1.406 albertel 585: <div class='LC_edit_problem_header_row1'>
586: <span class=\"LC_nobreak\">
1.405 albertel 587: ".&mt("Problem Status:")."
1.376 albertel 588: <select name='problemstate'>
589: <option value=''></option>
590: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
591: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
592: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
593: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
594: </select>
1.406 albertel 595: </span>
596: $show_all
597: ";
598: }
599: $result.='
600: <span class="LC_nobreak">
601: '.&mt('Apply style file: ').'
602: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
603: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
604: </span>
1.422 www 605: </div>
606: <div class="LC_edit_problem_header_row1">'.
607: &Apache::lonxml::renderingoptions().'
1.406 albertel 608: </div>
609: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
610: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
611: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
612: </div>
1.453 bisitz 613: <hr />
1.406 albertel 614: <div class="LC_edit_problem_header_randomize_row">
615: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
616: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
617: <input type="text" name="rndseed" size="10" value="'.
618: $rndseed.'"
619: onchange="javascript:document.lonhomework.changerandseed.click()" />';
620:
621: if (!$Apache::lonhomework::parsing_a_task) {
622: my $numtoanalyze=$env{'form.numtoanalyze'};
623: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 624: $result .= '<span class="LC_nobreak">'.
625: &mt('[_1] for [_2] versions.',
1.416 raeburn 626: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 627: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
628: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 629: $numtoanalyze.'" size="5" />').
630: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
631: '</span>';
632:
1.313 albertel 633: }
1.406 albertel 634:
635: $result.='
636: </div>
1.453 bisitz 637: <hr />
1.447 bisitz 638: <div>';
1.416 raeburn 639: $result.='<input type="hidden" name="problemmode" value="view" />';
640: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
641: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
642: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
643: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 644: $result.='
645: </div>
1.453 bisitz 646: <hr />
1.409 albertel 647: '.&Apache::lonxml::message_location().'
1.406 albertel 648: </div>';
1.159 albertel 649: return $result;
1.48 albertel 650: }
651:
1.65 albertel 652: sub initialize_storage {
1.357 albertel 653: my ($given_symb) = @_;
1.353 albertel 654: undef(%Apache::lonhomework::results);
655: undef(%Apache::lonhomework::history);
1.357 albertel 656: my ($symb,$courseid,$domain,$name) =
1.367 albertel 657: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 658:
659: # anonymous users (CODEd exams) have no data
660: if ($name eq 'anonymous'
661: && !defined($domain)) {
662: return;
663: }
664:
1.333 albertel 665: if ($env{'request.state'} eq 'construct'
666: || $symb eq ''
667: || $Apache::lonhomework::type eq 'practice') {
668:
669: my $namespace = $symb || $env{'request.uri'};
670: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 671: ($env{'form.resetdata'} eq &mt('New Problem Variation')
672: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 673: $env{'form.newrandomization'} eq &mt('New Randomization')) {
674: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
675: &Apache::lonxml::debug("Attempt reset");
676: }
1.159 albertel 677: %Apache::lonhomework::history=
1.333 albertel 678: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 679: my ($temp)=keys %Apache::lonhomework::history ;
680: &Apache::lonxml::debug("Return message of $temp");
681: } else {
682: %Apache::lonhomework::history=
683: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
684: }
1.353 albertel 685:
1.159 albertel 686: #ignore error conditions
1.67 albertel 687: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 688: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 689: }
690:
1.435 jms 691: =pod
692:
693: =item finalize_storage()
694:
695: Stores away the result has to a student's environment
696: checks form.grade_ for specific values, other wises stores
697: to the running users environment
698: Will increment totals for attempts, students, and corrects
699: if running user has student role.
700:
701: =cut
702:
703:
1.65 albertel 704: sub finalize_storage {
1.357 albertel 705: my ($given_symb) = @_;
1.159 albertel 706: my $result;
1.289 albertel 707: if (%Apache::lonhomework::results) {
1.323 albertel 708: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
709: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 710: my ($symb,$courseid,$domain,$name) =
1.367 albertel 711: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 712: if ($env{'request.state'} eq 'construct'
713: || $symb eq ''
714: || $Apache::lonhomework::type eq 'practice') {
715: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 716: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 717: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 718: $namespace,'',$domain,$name);
1.159 albertel 719: &Apache::lonxml::debug('Construct Store return message:'.$result);
720: } else {
721: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
722: $symb,$courseid,$domain,$name);
723: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 724: &store_aggregates($symb,$courseid);
1.159 albertel 725: }
1.323 albertel 726: } else {
727: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 728: }
1.159 albertel 729: return $result;
1.65 albertel 730: }
731:
1.435 jms 732: =pod
733:
734: item store_aggregates()
735:
736: Sends hash of values to be incremented in nohist_resourcetracker.db
737: for the course. Increments total number of attempts, unique students
738: and corrects for each part for an instance of a problem, as appropriate.
739:
740: =cut
741:
1.285 raeburn 742: sub store_aggregates {
743: my ($symb,$courseid) = @_;
1.479 raeburn 744: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 745: my @parts;
1.288 albertel 746: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
747: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 748: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 749: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 750: push(@parts, $1);
1.285 raeburn 751: }
752: }
1.286 albertel 753: foreach my $part (@parts) {
1.470 raeburn 754: if ($env{'request.role'} =~/^st/) {
755: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
756: eq 'APPROX_ANS' ||
757: $Apache::lonhomework::results{'resource.'.$part.'.award'}
758: eq 'EXACT_ANS') {
759: $aggregate{$symb."\0".$part."\0correct"} = 1;
760: }
761: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
762: $aggregate{$symb."\0".$part."\0users"} = 1;
763: } else {
764: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
765: if ($last_reset) {
766: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
767: $aggregate{$symb."\0".$part."\0users"} = 1;
768: }
769: }
770: }
771: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 772: }
1.470 raeburn 773: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 774: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
775: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
776: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
777: $randtrycounter{$symb."\0".$part} = 1;
778: } else {
779: $anoncounter{$symb."\0".$part} = 1;
780: }
1.470 raeburn 781: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
782: if ($needsrelease) {
783: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
784: if ($curr_required eq '') {
1.471 raeburn 785: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 786: } else {
787: my ($currmajor,$currminor) = split(/\./,$curr_required);
788: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
789: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 790: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 791: }
1.292 raeburn 792: }
793: }
1.285 raeburn 794: }
795: }
1.292 raeburn 796: if (keys (%aggregate) > 0) {
1.289 albertel 797: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 798: $cdomain,$cname);
799: }
1.472 raeburn 800: if (keys(%anoncounter) > 0) {
1.481 ! raeburn 801: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
! 802: $cdomain,$cname);
1.472 raeburn 803: }
1.479 raeburn 804: if (keys(%randtrycounter) > 0) {
1.481 ! raeburn 805: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
! 806: $cdomain,$cname);
1.479 raeburn 807: }
1.292 raeburn 808: }
1.289 albertel 809:
1.65 albertel 810: sub checkout_msg {
1.211 albertel 811: my %lt=&Apache::lonlocal::texthash(
812: 'resource'=>'The resource needs to be checked out',
813: '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.',
814: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
815: 'checkout'=>'Check out Exam for Viewing',
816: 'checkout?'=>'Check out Exam?');
1.352 albertel 817: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 818: return (<<ENDCHECKOUT);
1.211 albertel 819: <h2>$lt{'resource'}</h2>
820: <p>$lt{'id_expln'}</p>
1.449 bisitz 821: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 822: <form name="checkout" method="post" action="$uri">
1.91 albertel 823: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 824: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 825: </form>
826: ENDCHECKOUT
827: }
828:
1.252 albertel 829: sub firstaccess_msg {
1.253 albertel 830: my ($time,$symb)=@_;
1.414 albertel 831: my $result;
832: my @interval=&Apache::lonnet::EXT("resource.0.interval");
833: if ($interval[1] eq 'map') {
834: my ($map)=&Apache::lonnet::decode_symb($symb);
835: my $foldertitle=&Apache::lonnet::gettitle($map);
836:
837: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 838: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
839: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
840: ,$foldertitle,$time)."</h2>";
1.414 albertel 841: } elsif ($interval[1] eq 'course') {
842: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 843: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
844: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
845: ,$course,$time)."</h2>";
1.414 albertel 846: } else {
847: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 848: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
849: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
850: ,$title,$time)."</h2>";
1.414 albertel 851: }
1.352 albertel 852: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 853: my $buttontext = &mt('Show Resource');
854: my $timertext = &mt('Start Timer?');
1.414 albertel 855: $result .= (<<ENDCHECKOUT);
1.444 bisitz 856: <form name="markaccess" method="post" action="$uri">
1.252 albertel 857: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 858: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 859: </form>
860: ENDCHECKOUT
1.414 albertel 861: return $result;
1.252 albertel 862: }
863:
1.204 albertel 864: sub init_problem_globals {
865: my ($type)=@_;
866: #initialize globals
1.308 foxr 867: # For problems, we start out in part 0 (outside a <part> tag).
868: # and part 0 is used to describe the main body of the <problem>
869: #
1.204 albertel 870: if ($type eq 'problem') {
871: $Apache::inputtags::part='0';
872: @Apache::inputtags::partlist=('0');
1.405 albertel 873: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 874: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 875:
1.266 albertel 876: } elsif ($type eq 'library') {
1.204 albertel 877: $Apache::inputtags::part='';
878: @Apache::inputtags::partlist=();
1.405 albertel 879: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 880: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 881:
1.304 albertel 882: } elsif ($type eq 'Task') {
883: $Apache::inputtags::part='0';
884: @Apache::inputtags::partlist=('0');
1.405 albertel 885: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 886: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 887: }
1.477 www 888: @Apache::functionplotresponse::callscripts=();
1.204 albertel 889: @Apache::inputtags::responselist = ();
890: @Apache::inputtags::importlist = ();
891: @Apache::inputtags::previous=();
892: @Apache::inputtags::previous_version=();
893: $Apache::structuretags::printanswer='No';
894: @Apache::structuretags::whileconds=();
895: @Apache::structuretags::whilebody=();
896: @Apache::structuretags::whileline=();
897: $Apache::lonhomework::scantronmode=0;
898: undef($Apache::lonhomework::name);
1.358 albertel 899: undef($Apache::lonhomework::default_type);
900: undef($Apache::lonhomework::type);
1.204 albertel 901: }
902:
903: sub reset_problem_globals {
904: my ($type)=@_;
905: undef(%Apache::lonhomework::history);
906: undef(%Apache::lonhomework::results);
907: undef($Apache::inputtags::part);
1.208 albertel 908: #don't undef this, lonhomework.pm takes care of this, we use this to
909: #detect if we try to do 2 problems in one file
910: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 911: undef($Apache::lonhomework::name);
1.358 albertel 912: undef($Apache::lonhomework::default_type);
913: undef($Apache::lonhomework::type);
914: undef($Apache::lonhomework::scantronmode);
915: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 916: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 917: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 918: }
919:
1.241 albertel 920: sub set_problem_state {
1.240 albertel 921: my ($part)=@_;
1.284 albertel 922: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 923: $Apache::lonhomework::history{"resource.$part.solved"}=
924: 'correct_by_student';
925: }
926: }
927:
1.241 albertel 928: sub get_problem_status {
929: my ($part)=@_;
1.267 albertel 930: my $problem_status;
1.284 albertel 931: if ($env{'request.state'} eq 'construct' &&
932: defined($env{'form.problemstatus'})) {
933: $problem_status=$env{'form.problemstatus'};
1.267 albertel 934: } else {
935: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
936: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 937: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 938: }
939: return $problem_status;
940: }
941:
1.9 albertel 942: sub start_problem {
1.326 albertel 943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 944:
1.311 foxr 945: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 946: if (!$Apache::lonxml::metamode) {
947: &Apache::lonxml::startredirection();
948: }
1.311 foxr 949:
1.308 foxr 950: # Problems don't nest and we don't allow more than one <problem> in
951: # a .problem file.
952: #
1.184 albertel 953: if ( $Apache::inputtags::part ne '' ||
954: $Apache::lonhomework::parsing_a_problem) {
955: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 956: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 957: return '';
958: }
1.184 albertel 959:
960: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 961: &init_problem_globals('problem');
1.166 albertel 962:
1.284 albertel 963: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 964: $Apache::lonhomework::scantronmode=1;
965: }
1.161 albertel 966:
1.159 albertel 967: if ($target ne 'analyze') {
1.415 raeburn 968: my $type = &Apache::lonnet::EXT('resource.0.type');
969: $Apache::lonhomework::type=$type;
1.284 albertel 970: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 971: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 972: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 973: }
1.332 albertel 974: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 975: }
1.164 albertel 976: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 977: my $uri=$env{'request.uri'};
1.159 albertel 978: if ($uri=~/\.(\w+)$/) {
979: $Apache::lonhomework::type=$1;
980: &Apache::lonxml::debug("Using type of $1");
981: } else {
982: $Apache::lonhomework::type='problem';
983: &Apache::lonxml::debug("Using default type, problem, :$uri:");
984: }
1.87 albertel 985: }
1.301 albertel 986: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 987:
1.363 albertel 988: &initialize_storage();
1.389 albertel 989: if ($target ne 'analyze'
990: && $env{'request.state'} eq 'construct') {
991: &set_problem_state('0');
992: }
993:
1.366 albertel 994: if ($target eq 'web') {
995: &Apache::lonxml::debug(" grading history ");
996: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
997: }
1.363 albertel 998:
1.159 albertel 999: #added vars to the scripting enviroment
1.213 albertel 1000: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1001: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1002: &Apache::run::run($expression,$safeeval);
1.159 albertel 1003: my $status;
1004: my $accessmsg;
1005:
1.343 albertel 1006: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1007: my ($result,$form_tag_start);
1.354 albertel 1008: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1009: || $target eq 'edit') {
1.350 albertel 1010: ($result,$form_tag_start) =
1011: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1012: $name);
1013: }
1014:
1.284 albertel 1015: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1016:
1.479 raeburn 1017: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1018: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1019: $target eq 'tex') {
1.284 albertel 1020: if ($env{'form.markaccess'}) {
1.414 albertel 1021: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1022: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1023: }
1.479 raeburn 1024:
1025: ($status,$accessmsg,my $slot_name,my $slot) =
1026: &Apache::lonhomework::check_slot_access('0','problem');
1027: push (@Apache::inputtags::status,$status);
1028:
1.159 albertel 1029: #handle rand seed in construction space
1.479 raeburn 1030: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1031: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1032:
1.333 albertel 1033: if ($env{'request.state'} ne "construct" &&
1034: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1035: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1036: $rndseed.'" />'.
1037: '<input type="submit" name="resetdata"
1038: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1039: if (exists($env{'form.username'})) {
1040: $form_tag_start.=
1.164 albertel 1041: '<input type="hidden" name="username"
1.284 albertel 1042: value="'.$env{'form.username'}.'" />';
1.334 albertel 1043: }
1.462 raeburn 1044: if ($env{'request.role.adv'}) {
1045: $form_tag_start.= ' <label class="LC_nobreak">'
1046: .'<input type="checkbox" name="showallfoils"';
1047: if (defined($env{'form.showallfoils'})) {
1048: $form_tag_start.=' checked="checked"';
1049: }
1050: $form_tag_start.= ' /> '
1051: .&mt('Show All Foils')
1052: .'</label>';
1053: }
1.417 www 1054: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1055: $form_tag_start.=&practice_problem_header();
1.417 www 1056: }
1.462 raeburn 1057: $form_tag_start.='<hr />';
1.479 raeburn 1058: } elsif (($env{'request.state'} ne "construct") &&
1059: ($Apache::lonhomework::type eq 'randomizetry') &&
1060: ($status eq 'CAN_ANSWER')) {
1061: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1062: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1063: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1064: }
1.324 albertel 1065:
1.159 albertel 1066: my $expression='$external::datestatus="'.$status.'";';
1067: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1068: &Apache::run::run($expression,$safeeval);
1069: &Apache::lonxml::debug("Got $status");
1.324 albertel 1070:
1.159 albertel 1071: if (( $status eq 'CLOSED' ) ||
1072: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1073: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1074: ( $status eq 'BANNED') ||
1.216 albertel 1075: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1076: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1077: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1078: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1079: $style);
1.159 albertel 1080: if ( $target eq "web" ) {
1.343 albertel 1081: my $msg;
1.159 albertel 1082: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1083: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1084: } elsif ($status eq 'NOT_IN_A_SLOT') {
1085: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1086: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1087: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1088: }
1.216 albertel 1089: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1090: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1091: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1092: $msg.=&checkout_msg();
1.252 albertel 1093: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1094: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1095: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1096: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1097: }
1098: $result.=$msg.'<br />';
1099: } elsif ($target eq 'tex') {
1.332 albertel 1100: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1101: : '\begin{minipage}{\textwidth}';
1.443 foxr 1102: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1103: $startminipage.'\vskip 0 mm';
1.159 albertel 1104: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1105: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1106: } else {
1.211 albertel 1107: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1108: }
1109: }
1.324 albertel 1110: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1111: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1112: $style);
1.324 albertel 1113: if ($target eq 'web') {
1.375 albertel 1114: $result .=
1115: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1116: } elsif ($target eq 'grade') {
1117: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1118: 'problem');
1119: }
1.159 albertel 1120: } elsif ($target eq 'web') {
1.360 albertel 1121: if ($status eq 'CAN_ANSWER'
1122: && $slot_name ne ''
1123: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1124: # unproctored slot access, self checkin
1125: &Apache::bridgetask::check_in('problem',undef,undef,
1126: $slot_name);
1127: }
1.368 albertel 1128: $result.="\n $form_tag_start \t".
1.227 albertel 1129: '<input type="hidden" name="submitted" value="yes" />';
1130: # create a page header and exit
1.284 albertel 1131: if ($env{'request.state'} eq "construct") {
1132: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1133: if ($Apache::lonhomework::type eq 'practice') {
1134: $result.= '<input type="submit" name="resetdata" '.
1135: 'value="'.&mt('New Problem Variation').'" />'.
1136: &practice_problem_header().'<hr />';
1137: }
1.227 albertel 1138: }
1139: # if we are viewing someone else preserve that info
1.284 albertel 1140: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1141: foreach my $field ('symb','courseid','domain','username') {
1142: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1143: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1144: }
1.479 raeburn 1145: foreach my $field ('trial','questiontype') {
1146: if ($env{"form.grade_$field"} ne '') {
1147: $result .= '<input type="hidden" name="grade_'.$field.
1148: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1149: }
1150: }
1.159 albertel 1151: }
1152: } elsif ($target eq 'tex') {
1.319 foxr 1153: $result .= 'INSERTTEXFRONTMATTERHERE';
1154:
1.99 sakharuk 1155: }
1.159 albertel 1156: } elsif ($target eq 'edit') {
1.343 albertel 1157: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1158: $Apache::lonxml::warnings_error_header=
1159: &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 1160: my $temp=&Apache::edit::insertlist($target,$token);
1161: $result.=$temp;
1162: } elsif ($target eq 'modified') {
1163: $result=$token->[4];
1164: } else {
1165: # page_start returned a starting result, delete it if we don't need it
1166: $result = '';
1.99 sakharuk 1167: }
1.159 albertel 1168: return $result;
1.9 albertel 1169: }
1170:
1171: sub end_problem {
1.159 albertel 1172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1173: my $result;
1.310 foxr 1174:
1.321 albertel 1175: if (!$Apache::lonxml::metamode) {
1176: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1177: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1178: }
1.319 foxr 1179:
1180: if ($target eq 'tex') {
1.321 albertel 1181: # Figure out the front matter and replace the
1182: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1183: # this in end_problem because whether or not we display due
1184: # dates depends on whether due dates have already been
1185: # displayed in the problem parts.
1186:
1.319 foxr 1187: my $frontmatter = '';
1188: my $startminipage = '';
1189: if (not $env{'form.problem_split'}=~/yes/) {
1190: $startminipage = '\begin{minipage}{\textwidth}';
1191: }
1192: my $id = $Apache::inputtags::part;
1193: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1194: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1195: my @packages = split /,/,$packages;
1196: my $allow_print_points = 0;
1197: foreach my $partial_key (@packages) {
1198: if ($partial_key=~m/^part_0$/) {
1199: $allow_print_points=1;
1200: }
1201: }
1202: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1203: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1204: if (lc($env{'course.'.$env{'request.course.id'}.
1205: '.disableexampointprint'}) eq 'yes') {
1206: $allow_print_points=0;
1207: }
1208: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1209: 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 1210: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1211: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1212:
1213: # Figure out what the due date is and if we need to print
1214: # it in the problem header. We have been logging the
1215: # last due date written to file.
1216:
1217: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1218: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1219: my $duedate_text = &mt('Due date: [_1]'
1220: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1221: my $temp_file;
1222: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1223:
1224: # Figure out what the last printed due date is or set it
1225: # to the epoch if no duedates have been printed.
1226:
1227: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1228: if (-e $filename) {
1229: $temp_file = Apache::File->new($filename);
1230: my @due_file = <$temp_file>;
1231: $due_file_content = $due_file[$#due_file];
1232: chomp $due_file_content;
1233: }
1234:
1235: # We display the due date iff it is not the same as the last
1236: # duedate in problem header ($due_file_content), and
1237: # none of our parts displayed a duedate.
1238: #
1239: my $parts_with_displayduedate;
1240: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1241: $parts_with_displayduedate =
1242: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1243: } else {
1244: $parts_with_displayduedate = 0;
1245: }
1246: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1247: $temp_file = Apache::File->new('>'.$filename);
1248: print $temp_file "$duetime\n";
1249: if (not $env{'request.symb'} =~ m/\.page_/) {
1250: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1251: $frontmatter .= $begin_doc.
1.448 bisitz 1252: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1253: } else {
1254: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1255: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1256: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1257: }
1.319 foxr 1258: }
1259: } else {
1.448 bisitz 1260: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1261: }
1262: } else {
1263: if (not $env{'request.symb'} =~ m/\.page_/) {
1264: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1265: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1266: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1267: }
1.319 foxr 1268: } else {
1.381 albertel 1269: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1270: }
1271: }
1272: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1273: }
1274:
1.159 albertel 1275: my $status=$Apache::inputtags::status['-1'];
1276: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1277: $target eq 'tex') {
1.249 albertel 1278: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1279: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1280: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1281: &Apache::inputtags::grade;
1.324 albertel 1282: } elsif ($status eq 'NEEDS_CHECKIN') {
1283: # no need to grade, and don't want to hide data
1.249 albertel 1284: } else {
1285: # move any submission data to .hidden
1286: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1287: }
1.159 albertel 1288: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1289: $Apache::inputtags::part eq '0' &&
1.252 albertel 1290: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1291: # if part is zero, no <part>s existed, so we need show the current
1292: # grading status
1293: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1294: $result.= $gradestatus;
1295: }
1296: if (
1.284 albertel 1297: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1298: ($target eq 'answer') || ($target eq 'tex')
1299: ) {
1.227 albertel 1300: if ($target ne 'tex' &&
1.284 albertel 1301: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1302: $result.="</form>";
1.159 albertel 1303: }
1304: if ($target eq 'web') {
1.346 albertel 1305: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1306: } elsif ($target eq 'tex') {
1.178 sakharuk 1307: my $endminipage = '';
1.284 albertel 1308: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1309: $endminipage = '\end{minipage}';
1310: }
1.284 albertel 1311: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1312: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1313: } else {
1.262 sakharuk 1314: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1315: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1316: $result .= $endminipage.'\end{document} ';
1317: } else {
1.382 albertel 1318: $result .= $endminipage;
1.262 sakharuk 1319: }
1.159 albertel 1320: }
1321: }
1322: }
1.476 www 1323: if ($target eq 'web') {
1324: $result.=&Apache::functionplotresponse::init_script();
1325: }
1.159 albertel 1326: if ($target eq 'grade') {
1327: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1328: &finalize_storage();
1329: }
1.284 albertel 1330: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1331: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1332: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1333: # normally we get it from above, but in CSTR
1.172 albertel 1334: # we always show answer mode too.
1.159 albertel 1335: }
1336: } elsif ($target eq 'meta') {
1337: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1338: @Apache::inputtags::response=();
1.159 albertel 1339: $result=&Apache::response::mandatory_part_meta;
1340: }
1.215 albertel 1341: $result.=&Apache::response::meta_part_order();
1.258 albertel 1342: $result.=&Apache::response::meta_response_order();
1.159 albertel 1343: } elsif ($target eq 'edit') {
1344: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1345: $result .= &problem_edit_footer();
1.320 albertel 1346: } elsif ($target eq 'modified') {
1347: $result .= $token->[2];
1.159 albertel 1348: }
1.155 albertel 1349:
1.284 albertel 1350: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1351: &Apache::inputtags::check_for_duplicate_ids();
1352: }
1.204 albertel 1353:
1354: &reset_problem_globals('problem');
1.159 albertel 1355:
1356: return $result;
1.48 albertel 1357: }
1358:
1.108 albertel 1359:
1.48 albertel 1360: sub start_library {
1.159 albertel 1361: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1362: my ($result,$form_tag_start);
1.371 albertel 1363: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1364: &init_problem_globals('library');
1365: $Apache::lonhomework::type='problem';
1366: }
1.159 albertel 1367: if ($target eq 'edit') {
1.343 albertel 1368: ($result,$form_tag_start)=
1369: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1370: 'Edit');
1371: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1372: my $temp=&Apache::edit::insertlist($target,$token);
1373: $result.=$temp;
1374: } elsif ($target eq 'modified') {
1375: $result=$token->[4];
1.340 albertel 1376: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1377: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1378: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1379: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1380: ($result,$form_tag_start)=
1381: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1382: $name);
1.479 raeburn 1383: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1384: $result.=" \n $form_tag_start".
1.159 albertel 1385: '<input type="hidden" name="submitted" value="yes" />';
1386: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1387: if ($Apache::lonhomework::type eq 'practice') {
1388: $result.= '<input type="submit" name="resetdata" '.
1389: 'value="'.&mt('New Problem Variation').'" />'.
1390: &practice_problem_header().'<hr />';
1391: }
1.159 albertel 1392: }
1393: return $result;
1.48 albertel 1394: }
1395:
1396: sub end_library {
1.159 albertel 1397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1398: my $result='';
1399: if ($target eq 'edit') {
1400: $result=&problem_edit_footer();
1.371 albertel 1401: } elsif ($target eq 'web'
1402: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1403: && $env{'request.state'} eq "construct") {
1.349 albertel 1404: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1405: }
1.371 albertel 1406: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1407: &reset_problem_globals('library');
1408: }
1.159 albertel 1409: return $result;
1.197 www 1410: }
1411:
1412: sub start_definetag {
1.326 albertel 1413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1414:
1415: my $result;
1416:
1417: my $name = $token->[2]->{'name'};
1.326 albertel 1418: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1419: if ($target eq 'web') {
1420: if ($name=~/^\//) {
1421: $result=
1422: '<br /><table class="LC_sty_end"><tr><th>'.
1423: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1424: } else {
1425: $result=
1426: '<br /><table class="LC_sty_begin"><tr><th>'.
1427: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1428: }
1429: $skip = &HTML::Entities::encode($skip, '<>&"');
1430: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1431: }
1432: return $result;
1433: }
1434:
1435: sub end_definetag {
1436: return '';
1.1 albertel 1437: }
1438:
1439: sub start_block {
1.201 albertel 1440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1441:
1442: my $result;
1.1 albertel 1443:
1.339 albertel 1444: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1445: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1446: my $code = $token->[2]->{'condition'};
1.385 albertel 1447: if (defined($code) && $code ne '') {
1.137 albertel 1448: if (!$Apache::lonxml::default_homework_loaded) {
1449: &Apache::lonxml::default_homework_load($safeeval);
1450: }
1.131 albertel 1451: $result = &Apache::run::run($code,$safeeval);
1452: &Apache::lonxml::debug("block :$code: returned :$result:");
1453: } else {
1454: $result='1';
1455: }
1456: if ( ! $result ) {
1.201 albertel 1457: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1458: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1459: }
1460: $result='';
1461: } elsif ($target eq 'edit') {
1462: $result .=&Apache::edit::tag_start($target,$token);
1463: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1464: $token,40);
1465: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1466: } elsif ($target eq 'modified') {
1467: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1468: $safeeval,'condition');
1469: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1470: }
1.131 albertel 1471: return $result;
1.1 albertel 1472: }
1473:
1474: sub end_block {
1.167 www 1475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1476: my $result;
1477: if ($target eq "edit") {
1478: $result.= &Apache::edit::tag_end($target,$token,'');
1479: }
1480: return $result;
1481: }
1482:
1483: sub start_languageblock {
1.201 albertel 1484: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1485:
1486: my $result;
1487:
1.339 albertel 1488: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1489: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1490: my $include = $token->[2]->{'include'};
1491: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1492: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1493: # This should not even happen, since we should at least have the server language
1.398 www 1494: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1495: # Now loop over all languages in order of preference
1496: foreach my $preferred_language (@preferred_languages) {
1.394 www 1497: # If the languageblock has no arguments, show the contents
1.399 www 1498: $result=1;
1499: my $found=0;
1.394 www 1500: # Do we have an include argument?
1.398 www 1501: if ($include) {
1.394 www 1502: # If include is specified, by default, don't render the block
1.399 www 1503: $result=0;
1.398 www 1504: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1505: # ... but if my preferred language is included, render it
1.398 www 1506: if ($included_language eq $preferred_language) {
1.399 www 1507: $result=1;
1508: $found=1;
1.398 www 1509: }
1510: }
1511: }
1.394 www 1512: # Do we have an exclude argument?
1.398 www 1513: if ($exclude) {
1.399 www 1514: $result=1;
1.398 www 1515: foreach my $excluded_language (split(/\,/,$exclude)) {
1516: if ($excluded_language eq $preferred_language) {
1.399 www 1517: $result=0;
1518: $found=1;
1.398 www 1519: }
1520: }
1521: }
1.399 www 1522: if ($found) { last; }
1.398 www 1523: }
1.201 albertel 1524: if ( ! $result ) {
1525: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1526: $style);
1527: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1528: }
1529: $result='';
1.167 www 1530: } elsif ($target eq 'edit') {
1531: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1532: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1533: $token,40);
1.211 albertel 1534: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1535: $token,40);
1536: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1537: } elsif ($target eq 'modified') {
1538: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1539: $safeeval,'include',
1540: 'exclude');
1.167 www 1541: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1542: }
1543: return $result;
1544: }
1545:
1546: sub end_languageblock {
1.170 www 1547: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1548: my $result;
1.201 albertel 1549: if ($target eq "edit") {
1.170 www 1550: $result.= &Apache::edit::tag_end($target,$token,'');
1551: }
1552: return $result;
1553: }
1554:
1.397 albertel 1555: {
1556: my %available_texts;
1557: sub start_translated {
1558: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1559: &Apache::lonxml::register('Apache::structuretags',('lang'));
1560: undef(%available_texts);
1561: }
1562:
1563: sub end_translated {
1564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1565: my $result;
1566: #show the translation on viewable targets
1567: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1568: # or non-viewable targets, if it's embedded in something that
1569: # wants the output
1570: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1571: && &Apache::lonxml::in_redirection() ) ) {
1572: my @possibilities = keys(%available_texts);
1573: my $which =
1574: &Apache::loncommon::languages(\@possibilities) || 'default';
1575: $result = $available_texts{$which};
1576: }
1577: undef(%available_texts);
1578: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1579: return $result;
1580: }
1581:
1582:
1583: sub start_lang {
1584: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1585: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1586: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1587: &Apache::lonxml::startredirection();
1588: }
1589: return '';
1590: }
1591:
1592: sub end_lang {
1593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1594: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1595: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1596: my $result = &Apache::lonxml::endredirection();
1597: my $which = &Apache::lonxml::get_param('which',$parstack,
1598: $safeeval);
1.431 raeburn 1599: if ($which=~/\w/) {
1600: $available_texts{$which} = $result;
1601: }
1602: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1603: $safeeval);
1604: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1605: if ($language=~/\w/) {
1606: $available_texts{$language} = $result;
1607: }
1.427 bisitz 1608: }
1609:
1.397 albertel 1610: }
1611: return '';
1612: }
1613: }
1614:
1.170 www 1615: sub start_instructorcomment {
1.201 albertel 1616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1617:
1618: my $result;
1619:
1.339 albertel 1620: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1621: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1622: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1623: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1624: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1625: $parser,$style);
1.170 www 1626: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1627: }
1628: $result='';
1629: } elsif ($target eq 'edit') {
1630: $result .=&Apache::edit::tag_start($target,$token);
1631: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1632: }
1633: return $result;
1634: }
1635:
1636: sub end_instructorcomment {
1.159 albertel 1637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1638: my $result;
1639: if ($target eq "edit") {
1640: $result.= &Apache::edit::tag_end($target,$token,'');
1641: }
1642: return $result;
1.4 tsai 1643: }
1644:
1645: sub start_while {
1.326 albertel 1646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1647:
1.160 albertel 1648: my $result;
1.339 albertel 1649: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1650: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1651: my $code = $token->[2]->{'condition'};
1.4 tsai 1652:
1.160 albertel 1653: push( @Apache::structuretags::whileconds, $code);
1654: if (!$Apache::lonxml::default_homework_loaded) {
1655: &Apache::lonxml::default_homework_load($safeeval);
1656: }
1657: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1658: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1659: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1660: push( @Apache::structuretags::whileline, $token->[5]);
1661: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1662: if ( $result ) {
1663: &Apache::lonxml::newparser($parser,\$bodytext);
1664: }
1665: } elsif ($target eq 'edit') {
1666: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1667: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1668: $token,40);
1669: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1670: } elsif ($target eq 'modified') {
1671: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1672: $safeeval,'condition');
1673: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1674: }
1.160 albertel 1675: return $result;
1.4 tsai 1676: }
1677:
1678: sub end_while {
1.159 albertel 1679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1680: my $result;
1681:
1.339 albertel 1682: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1683: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1684: my $code = pop(@Apache::structuretags::whileconds);
1685: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1686: my $line = pop(@Apache::structuretags::whileline);
1687: my $return = &Apache::run::run($code,$safeeval);
1688: my $starttime=time;
1689: my $error=0;
1690: while ($return) {
1691: if (time-$starttime >
1692: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1693: $return = 0; $error=1; next;
1.161 albertel 1694: }
1695: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1696: if ($target eq 'grade' || $target eq 'answer' ||
1697: $target eq 'analyze') {
1698: # grade/answer/analyze should produce no output but if we
1699: # are redirecting, the redirecter should know what to do
1700: # with the output
1701: if (!$Apache::lonxml::redirection) { undef($result); }
1702: }
1.161 albertel 1703: $return = &Apache::run::run($code,$safeeval);
1704: }
1705: if ($error) {
1.430 bisitz 1706: &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 1707: }
1708: } elsif ($target eq "edit") {
1709: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1710: }
1.160 albertel 1711: return $result;
1.1 albertel 1712: }
1.6 tsai 1713:
1.160 albertel 1714: # <randomlist show="1">
1.6 tsai 1715: # <tag1>..</tag1>
1716: # <tag2>..</tag2>
1717: # <tag3>..</tag3>
1.160 albertel 1718: # ...
1.6 tsai 1719: # </randomlist>
1720: sub start_randomlist {
1.326 albertel 1721: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1722: my $result;
1.339 albertel 1723: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1724: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1725: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1726: my $b_parser= HTML::LCParser->new(\$body);
1727: $b_parser->xml_mode(1);
1728: $b_parser->marked_sections(1);
1.159 albertel 1729: my $b_tok;
1730: my @randomlist;
1731: my $list_item;
1732: while($b_tok = $b_parser->get_token() ) {
1733: if($b_tok->[0] eq 'S') { # start tag
1734: # get content of the tag until matching end tag
1735: # get all text upto the matching tag
1736: # and push the content into @randomlist
1737: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1738: $b_parser);
1739: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1740: push(@randomlist,$list_item);
1741: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1742: # $list_item</b>";
1743: }
1744: if($b_tok->[0] eq 'T') { # text
1745: # what to do with text in between tags?
1746: # print "<b>TEXT $b_tok->[1]</b><br />";
1747: }
1748: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1749: # print "<b>END-TAG $b_tok->[1]</b><br />";
1750: # }
1751: }
1.303 albertel 1752: if (@randomlist) {
1753: my @idx_arr = (0 .. $#randomlist);
1754: &Apache::structuretags::shuffle(\@idx_arr);
1755: my $bodytext = '';
1756: my $show=$#randomlist;
1757: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1758: $showarg--;
1759: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1760: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1761: my @currlist;
1762: my $part = $Apache::inputtags::part;
1763: if ($part ne '') {
1764: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1765: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1766: if (!(grep(/^\Q$part\E$/,@currlist))) {
1767: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1768: }
1769: } else {
1770: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1771: }
1772: }
1773: }
1.303 albertel 1774: for(0 .. $show) {
1775: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1776: }
1777: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1778: }
1779: } elsif ($target eq 'edit' ) {
1780: $result .=&Apache::edit::tag_start($target,$token);
1781: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1782: $token,5);
1783: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1784: } elsif ($target eq 'modified' ) {
1785: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1786: $safeeval,'show');
1787: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1788: }
1789: return $result;
1.7 tsai 1790: }
1791:
1792: sub shuffle {
1793: my $a=shift;
1794: my $i;
1.303 albertel 1795: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1796: &Apache::response::pushrandomnumber();
1.159 albertel 1797: for($i=@$a;--$i;) {
1798: my $j=int(&Math::Random::random_uniform() * ($i+1));
1799: next if $i == $j;
1800: @$a[$i,$j] = @$a[$j,$i];
1801: }
1.251 albertel 1802: &Apache::response::poprandomnumber();
1.7 tsai 1803: }
1.6 tsai 1804: }
1805:
1806: sub end_randomlist {
1.159 albertel 1807: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1808: my $result;
1809: if ($target eq 'edit' ) {
1810: $result=&Apache::edit::tag_end($target,$token,
1811: 'End Randomly Parsed Block');
1812: }
1813: return $result;
1.6 tsai 1814: }
1815:
1.283 albertel 1816: sub ordered_show_check {
1817: my $last_part=$Apache::inputtags::partlist[-2];
1818: my $in_order=
1819: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1820: my $in_order_show=1;
1821: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1822: $in_order_show=&Apache::response::check_status($last_part);
1823: }
1824: return $in_order_show;
1825: }
1826:
1.469 www 1827:
1828: sub start_startpartmarker {
1829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1830: my $result='';
1831: if ($target eq 'edit') {
1832: $result=&Apache::edit::tag_start($target,$token);
1833: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1834: $result.=&Apache::edit::end_table();
1835:
1836: }
1837: return $result;
1838: }
1839:
1840: sub end_startpartmarker {
1841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1842: my @result;
1843: if ($target eq 'edit') { $result[1]='no'; }
1844: return @result;
1845: }
1846:
1847: sub start_endpartmarker {
1848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1849: my $result='';
1850: if ($target eq 'edit') {
1851: $result=&Apache::edit::tag_start($target,$token);
1852: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1853: $result.=&Apache::edit::end_table();
1854:
1855: }
1856: return $result;
1857: }
1858:
1859: sub end_endpartmarker {
1860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1861: my @result;
1862: if ($target eq 'edit') { $result[1]='no'; }
1863: return @result;
1864: }
1865:
1866:
1867:
1868:
1869:
1.11 albertel 1870: sub start_part {
1.326 albertel 1871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1872: if (!$Apache::lonxml::metamode) {
1873: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1874: # duedates.
1875: }
1.159 albertel 1876: my $result='';
1.386 albertel 1877: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1878: $Apache::inputtags::part=$id;
1.177 albertel 1879: push(@Apache::inputtags::partlist,$id);
1880: @Apache::inputtags::response=();
1.159 albertel 1881: @Apache::inputtags::previous=();
1882: @Apache::inputtags::previous_version=();
1.405 albertel 1883: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1884: &Apache::response::reset_params();
1885:
1.159 albertel 1886: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1887: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1888: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1889: my $in_order_show=&ordered_show_check();
1.214 albertel 1890: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1891: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1892: &Apache::run::run($expression,$safeeval);
1.159 albertel 1893:
1894: if ($target eq 'meta') {
1.224 www 1895: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1896: return &Apache::response::mandatory_part_meta.
1897: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1898: } elsif ($target eq 'web' || $target eq 'grade' ||
1899: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1900: if ($hidden || !$in_order_show) {
1.326 albertel 1901: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1902: } else {
1903: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1904: push (@Apache::inputtags::status,$status);
1905: my $expression='$external::datestatus="'.$status.'";';
1906: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1907: &Apache::run::run($expression,$safeeval);
1.284 albertel 1908: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1909: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1910: }
1.216 albertel 1911: if (( $status eq 'CLOSED' ) ||
1912: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1913: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1914: ( $status eq 'BANNED') ||
1915: ( $status eq 'UNAVAILABLE') ||
1916: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1917: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1918: $style);
1.159 albertel 1919: if ( $target eq "web" ) {
1.211 albertel 1920: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1921: } elsif ( $target eq 'tex' ) {
1.284 albertel 1922: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1923: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1924: } else {
1.211 albertel 1925: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1926: }
1.159 albertel 1927: }
1928: } else {
1929: if ($target eq 'tex') {
1.284 albertel 1930: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1931: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1932: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1933: } else {
1934: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1935: }
1.195 sakharuk 1936: }
1.159 albertel 1937: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1938: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1939: my @allkeys = split /,/,$allkeys;
1940: my $allow_print_points = 0;
1941: foreach my $partial_key (@allkeys) {
1.230 albertel 1942: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1943: if ($1 ne '0') {$allow_print_points=1;}
1944: }
1945: }
1.275 albertel 1946: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1947: if (defined($maxtries) && $maxtries < 0) {
1948: $allow_print_points=0;
1949: }
1.302 albertel 1950: if (lc($env{'course.'.$env{'request.course.id'}.
1951: '.disableexampointprint'}) eq 'yes') {
1952: $allow_print_points=0;
1953: }
1.463 foxr 1954: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1955: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1956:
1957: }
1.233 www 1958: } elsif ($target eq 'web') {
1.479 raeburn 1959: if ($status eq 'CAN_ANSWER') {
1960: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1961: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1962: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1963: my $num = scalar(@Apache::inputtags::partlist)-1;
1964: if ($probrandomize eq 'randomizetry') {
1965: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1966: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1967: } else {
1968: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1969: if ($probrandtries ne $reqtries) {
1970: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1971: }
1972: }
1973: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1974: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1975: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1976: }
1977: }
1.475 raeburn 1978: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 1979: }
1980: }
1981: }
1982: } elsif ($target eq 'edit') {
1983: $result.=&Apache::edit::tag_start($target,$token);
1984: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1985: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1986: ' '.
1987: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1988: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1989: } elsif ($target eq 'modified') {
1990: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1991: $safeeval,'id','display');
1.159 albertel 1992: if ($constructtag) {
1.225 albertel 1993: #limiting ids to only letters numbers, and space
1.224 www 1994: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1995: $result = &Apache::edit::rebuild_tag($token);
1996: }
1997: }
1998: return $result;
1.11 albertel 1999: }
2000:
2001: sub end_part {
1.159 albertel 2002: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2003: &Apache::lonxml::debug("in end_part $target ");
2004: my $status=$Apache::inputtags::status['-1'];
2005: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2006: my $in_order_show=&ordered_show_check();
1.321 albertel 2007: my $result;
2008: if (!$Apache::lonxml::metamode) {
2009: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2010: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2011: }
1.312 albertel 2012: if ($target eq 'grade') {
1.249 albertel 2013: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2014: !$hidden && $in_order_show) {
1.311 foxr 2015: $result.=&Apache::inputtags::grade;
1.249 albertel 2016: } else {
2017: # move any submission data to .hidden
2018: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2019: }
1.283 albertel 2020: } elsif (($target eq 'web' || $target eq 'tex') &&
2021: !$hidden && $in_order_show) {
1.159 albertel 2022: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2023: $target);
1.212 albertel 2024: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2025: $gradestatus='';
2026: }
1.311 foxr 2027: $result.=$gradestatus;
1.265 sakharuk 2028: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2029: } elsif ($target eq 'edit') {
1.311 foxr 2030: $result.=&Apache::edit::end_table();
1.322 albertel 2031: } elsif ($target eq 'modified') {
2032: $result .= $token->[2];
1.159 albertel 2033: }
2034: pop @Apache::inputtags::status;
2035: $Apache::inputtags::part='';
1.295 albertel 2036: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2037: return $result;
1.11 albertel 2038: }
1.1 albertel 2039:
1.25 albertel 2040: sub start_preduedate {
1.326 albertel 2041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2042: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2043: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2044: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2045: if (!$Apache::lonhomework::scantronmode &&
2046: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2047: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2048: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2049: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2050: }
1.24 albertel 2051: }
1.159 albertel 2052: return '';
1.24 albertel 2053: }
2054:
1.25 albertel 2055: sub end_preduedate {
1.159 albertel 2056: return '';
1.24 albertel 2057: }
2058:
1.369 foxr 2059: # In all the modes where <postanswerdate> text is
2060: # displayable, all we do is eat up the text between the start/stop
2061: # tags if the conditions are not right to display it.
1.25 albertel 2062: sub start_postanswerdate {
1.326 albertel 2063: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2064: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2065: &Apache::lonnet::allowed('pav',
2066: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2067: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2068: $target eq 'tex' ) {
1.300 albertel 2069: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2070: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2071: (($target eq 'tex') && !$pav)) {
1.326 albertel 2072: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2073: }
2074: }
2075: return '';
1.24 albertel 2076: }
2077:
1.25 albertel 2078: sub end_postanswerdate {
1.159 albertel 2079: return '';
1.24 albertel 2080: }
2081:
1.25 albertel 2082: sub start_notsolved {
1.326 albertel 2083: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2084: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2085: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2086: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2087: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2088: if ($gradestatus =~ /^correct/ &&
2089: &Apache::response::show_answer()) {
1.159 albertel 2090: &Apache::lonxml::debug("skipping");
1.326 albertel 2091: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2092: }
1.24 albertel 2093: }
1.159 albertel 2094: return '';
1.24 albertel 2095: }
2096:
1.25 albertel 2097: sub end_notsolved {
1.159 albertel 2098: return '';
1.24 albertel 2099: }
2100:
2101: sub start_solved {
1.326 albertel 2102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2103: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2104: $target eq 'tex') {
2105: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2106: if ($gradestatus !~ /^correct/ ||
2107: !&Apache::response::show_answer()) {
1.326 albertel 2108: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2109: }
1.24 albertel 2110: }
1.159 albertel 2111: return '';
1.24 albertel 2112: }
2113:
2114: sub end_solved {
1.248 albertel 2115: return '';
2116: }
2117:
2118: sub start_problemtype {
1.326 albertel 2119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2120: my $result;
1.339 albertel 2121: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2122: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2123: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2124: if (!defined($mode)) { $mode='show'; }
2125: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2126: my $found=0;
2127: foreach my $type (split(',',$for)) {
2128: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2129: }
2130: if ($mode eq 'show' && !$found) {
1.326 albertel 2131: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2132: }
2133: if ($mode eq 'hide' && $found) {
1.326 albertel 2134: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2135: }
2136: } elsif ($target eq 'edit') {
2137: $result .=&Apache::edit::tag_start($target,$token);
2138: $result.=&Apache::edit::select_arg('Mode:','mode',
2139: [['show','Show'],
2140: ['hide','Hide']]
2141: ,$token);
2142: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2143: [ ['exam','Exam/Quiz Problem'],
2144: ['survey','Survey'],
1.465 raeburn 2145: ['surveycred','Survey (with credit)'],
2146: ['anonsurvey','Anonymous Survey'],
2147: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2148: ['problem','Homework Problem'],
1.479 raeburn 2149: ['practice','Practice Problem'],
2150: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2151: ,$token);
2152: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2153: } elsif ($target eq 'modified') {
2154: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2155: $safeeval,'mode','for');
2156: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2157: }
2158: return $result;
2159: }
2160:
2161: sub end_problemtype {
1.159 albertel 2162: return '';
1.24 albertel 2163: }
1.34 albertel 2164:
2165: sub start_startouttext {
1.159 albertel 2166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2167: my @result=(''.'');
2168: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2169:
2170: my $nesting =
2171: &Apache::lonxml::set_state('outtext',
2172: &Apache::lonxml::get_state('outtext')+1);
2173: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2174: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2175: }
1.159 albertel 2176: return (@result);
1.34 albertel 2177: }
1.159 albertel 2178:
1.34 albertel 2179: sub end_startouttext {
1.326 albertel 2180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2181: my $result='';
2182: my $text='';
2183: if ($target eq 'edit') {
1.424 foxr 2184: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2185: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2186: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2187: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2188: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2189: .'</span></td>'
2190: .'<td align="left"><span id="math_'.$areaid.'" />'
2191: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2192: .'<span></td>'
2193: .'<td>'
2194: .&Apache::edit::insertlist($target,$token)
2195: .'</td>'
2196: .'<td align="right" valign="top">' .
2197: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2198: &Apache::edit::end_row().
1.362 albertel 2199: &Apache::edit::start_spanning_row()."\n".
1.255 www 2200: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2201: }
2202: if ($target eq 'modified') {
1.219 albertel 2203: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2204: }
2205: if ($target eq 'tex') {
2206: $result .= '\noindent ';
2207: }
2208: return $result;
1.34 albertel 2209: }
1.159 albertel 2210:
1.34 albertel 2211: sub start_endouttext {
1.159 albertel 2212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2213: my $result='';
2214: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2215: if ($target eq "modified") {
2216: $result='<endouttext />'.
1.377 albertel 2217: &Apache::edit::handle_insertafter('startouttext');
2218: }
1.404 albertel 2219:
2220: my $nesting =
2221: &Apache::lonxml::set_state('outtext',
2222: &Apache::lonxml::get_state('outtext')-1);
2223: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2224: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2225: &Apache::lonxml::set_state('outtext', 0);
2226: }
1.159 albertel 2227: return $result;
1.34 albertel 2228: }
1.159 albertel 2229:
1.34 albertel 2230: sub end_endouttext {
1.159 albertel 2231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2232: my @result=('','');
2233: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2234: return (@result);
1.34 albertel 2235: }
1.159 albertel 2236:
1.45 albertel 2237: sub delete_startouttext {
1.326 albertel 2238: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2239: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2240: my $text=$$parser['-1']->get_text("/endouttext");
2241: my $ntoken=$$parser['-1']->get_token();
2242: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2243: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2244: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2245: # they did the last time round
2246: &Apache::lonxml::increasedepth($ntoken);
2247: &Apache::lonxml::decreasedepth($ntoken);
2248: return 1;
1.193 www 2249: }
2250:
2251: sub start_simpleeditbutton {
2252: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2253: my $result='';
1.284 albertel 2254: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2255: ($target eq 'web') &&
1.330 albertel 2256: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2257: my $url=$env{'request.noversionuri'};
1.193 www 2258: $url=~s/\?.*$//;
1.367 albertel 2259: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2260: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2261: # $result='<p class="LC_warning">'
2262: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2263: # .&Apache::loncommon::help_open_topic('Caching')
2264: # .'</p>';
1.451 bisitz 2265: $result.=&Apache::lonhtmlcommon::start_funclist()
2266: .&Apache::lonhtmlcommon::add_item_funclist(
2267: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2268: .&mt('Edit').'</a>')
2269: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2270:
1.193 www 2271: }
2272: return $result;
2273: }
2274:
2275: sub end_simpleeditbutton {
2276: return '';
1.45 albertel 2277: }
1.34 albertel 2278:
1.428 raeburn 2279: sub practice_problem_header {
2280: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2281: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2282: '</span>';
2283: }
2284:
1.479 raeburn 2285: sub randomizetry_problem_header {
2286: my ($problemstatus,$reqtries) = @_;
2287: my ($header,$text);
2288: if ($reqtries > 1) {
2289: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2290: if (($problemstatus eq 'no') ||
2291: ($problemstatus eq 'no_feedback_ever')) {
2292: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2293: } else {
2294: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2295: }
2296: } else {
2297: $header = &mt('New Problem Variation Each Try');
2298: if (($problemstatus eq 'no') ||
2299: ($problemstatus eq 'no_feedback_ever')) {
2300: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2301:
2302: } else {
2303: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2304: }
2305: }
2306: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2307: '<span class="LC_info">'.$text.'</span><hr />';
2308: }
2309:
2310: sub randomizetry_part_header {
2311: my ($problemstatus,$reqtries,$num) = @_;
2312: my ($header,$text);
2313: if ($reqtries eq 'none') {
2314: $header = &mt('No Question Variation');
2315: $text = &mt('For this question there will no new variation after a try.');
2316: } elsif ($reqtries > 1) {
2317: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2318: if (($problemstatus eq 'no') ||
2319: ($problemstatus eq 'no_feedback_ever')) {
2320: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2321: } else {
2322: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2323: }
2324: } else {
2325: $header = &mt('New Question Variation For Each Try');
2326: if (($problemstatus eq 'no') ||
2327: ($problemstatus eq 'no_feedback_ever')) {
2328: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2329: } else {
2330: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2331: }
2332: }
2333: my $output;
2334: if ($num > 1) {
2335: $output .= '<hr />';
2336: }
2337: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2338: '<span class="LC_info">'.$text.'</span><br /><br />';
2339: return $output;
2340: }
2341:
1.1 albertel 2342: 1;
2343: __END__
1.435 jms 2344:
2345: =pod
2346:
2347: =back
2348:
2349: =cut
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