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