Annotation of loncom/homework/structuretags.pm, revision 1.447
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.447 ! bisitz 4: # $Id: structuretags.pm,v 1.446 2009/05/19 22:52:19 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: }
1.446 bisitz 215: $pageheader = &Apache::lonhtmlcommon::breadcrumbs() # FIXME add breadcrumbs
216: .&Apache::loncommon::head_subbox(
217: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 218: }
1.272 albertel 219: } elsif (!defined($found{'body'})) {
1.343 albertel 220: my %add_entries;
1.159 albertel 221: my $background=&Apache::lonxml::get_param('background',$parstack,
222: $safeeval);
1.343 albertel 223: if ($background ne '' ) {
224: $add_entries{'background'} = $background;
225: }
1.344 albertel 226:
1.290 albertel 227: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
228: $safeeval);
1.446 bisitz 229: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 230:
1.446 bisitz 231: $body_args{'bgcolor'} = $bgcolor;
232: # $body_args{'no_title'} = 1;
233: $body_args{'force_register'} = 1;
234: $body_args{'add_entries'} = \%add_entries;
235: if ($env{'environment.remote'} eq 'off'
236: && $env{'request.state'} eq 'construct') {
237: $body_args{'only_body'} = 1;
238: }
1.344 albertel 239: }
1.365 albertel 240: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 241: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
242: \%body_args);
1.446 bisitz 243: $page_start .= $pageheader;
1.344 albertel 244: if (!defined($found{'body'})
245: && $env{'request.state'} ne 'construct'
246: && ($target eq 'web' || $target eq 'webgrade')) {
247:
1.367 albertel 248: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 249: if ($symb eq '' && !$publicuser) {
250: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
251: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
252: $page_start .= $help;
1.159 albertel 253: }
1.344 albertel 254: }
255:
1.409 albertel 256: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 257: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 258: }
1.344 albertel 259:
1.159 albertel 260: my $form_tag_start;
261: if (!defined($found{'form'})) {
1.337 albertel 262: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 263: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 264: $form_tag_start.=$uri.'" ';
265: if ($target eq 'edit') {
266: $form_tag_start.=&Apache::edit::form_change_detection();
267: }
1.368 albertel 268: $form_tag_start.='>'."\n";
1.355 albertel 269:
270: my $symb=&Apache::lonnet::symbread();
271: if ($symb =~ /\S/) {
272: $symb=
273: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
274: $form_tag_start.=
1.368 albertel 275: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 276: }
1.159 albertel 277: }
1.343 albertel 278: return ($page_start,$form_tag_start);
1.105 albertel 279: }
280:
1.141 matthew 281: #use Time::HiRes();
1.105 albertel 282: sub get_resource_name {
1.159 albertel 283: my ($parstack,$safeeval)=@_;
1.388 foxr 284: my $name;
1.204 albertel 285: if (defined($Apache::lonhomework::name)) {
1.388 foxr 286: $name = $Apache::lonhomework::name;
287: } else {
288: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 289: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 290: if ($name eq '') {
291: $name=&Apache::lonnet::EXT('resource.title');
292: if ($name eq 'con_lost') { $name = ''; }
293: }
294: if ($name!~/\S+/) {
295: $name=$env{'request.uri'};
296: $name=~s-.*/([^/]+)$-$1-;
297: }
298: # The name has had html tags escaped:
299:
300: $name=~s/</</gs;
301: $name=~s/>/>/gs;
302:
303: $Apache::lonhomework::name=$name;
1.204 albertel 304: }
1.159 albertel 305: return $name;
1.105 albertel 306: }
307:
308: sub setup_rndseed {
1.159 albertel 309: my ($safeeval)=@_;
310: my $rndseed;
1.367 albertel 311: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 312: if ($env{'request.state'} eq "construct"
313: || $symb eq ''
314: || $Apache::lonhomework::type eq 'practice'
315: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 316: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 317: ['rndseed']);
1.284 albertel 318: $rndseed=$env{'form.rndseed'};
1.159 albertel 319: if (!$rndseed) {
1.162 albertel 320: $rndseed=$Apache::lonhomework::history{'rndseed'};
321: if (!$rndseed) {
322: $rndseed=time;
323: }
1.284 albertel 324: $env{'form.rndseed'}=$rndseed;
1.162 albertel 325: }
1.374 albertel 326: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
327: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 328: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 329: srand(time);
330: $rndseed=int(rand(2100000000));
1.284 albertel 331: $env{'form.rndseed'}=$rndseed;
332: delete($env{'form.resetdata'});
333: delete($env{'form.newrandomization'});
1.159 albertel 334: }
1.187 albertel 335: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 336: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 337: }
1.247 albertel 338: if ($Apache::lonhomework::history{'resource.CODE'}) {
339: $rndseed=&Apache::lonnet::rndseed();
340: }
1.221 albertel 341: if ($safeeval) {
342: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 343: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 344: }
1.159 albertel 345: }
346: return $rndseed;
1.105 albertel 347: }
348:
1.268 albertel 349: sub remember_problem_state {
350: return '
1.284 albertel 351: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
352: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
353: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 354: }
355:
1.423 www 356: sub problem_edit_buttons {
357: return '
1.408 albertel 358: <div class="LC_edit_problem_discards">
1.416 raeburn 359: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 360: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 361: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 362: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 363: </div>
364: <div class="LC_edit_problem_saves">
1.416 raeburn 365: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
366: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 367: </div>';
368: }
369:
370: sub problem_edit_header {
371: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
372: &Apache::structuretags::remember_problem_state().'
373: <div class="LC_edit_problem_header">
374: <div class="LC_edit_problem_header_title">
375: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
376: </div>'.
377: &problem_edit_buttons().'
1.408 albertel 378: <hr class="LC_edit_problem_divide" />
1.409 albertel 379: '.&Apache::lonxml::message_location().'
1.408 albertel 380: </div>
381: '.
1.282 albertel 382: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 383: }
384:
385: sub problem_edit_footer {
1.412 albertel 386: return '</td></tr></table><br />
387: <div class="LC_edit_problem_footer">
1.423 www 388: <hr class="LC_edit_problem_divide" />'.
389: &problem_edit_buttons().'
1.412 albertel 390: <hr class="LC_edit_problem_divide" />
391: </div>
392: '.
393:
1.348 albertel 394: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 395: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 396: }
397:
1.235 albertel 398: sub option {
399: my ($value,$name) = @_;
400: my $result ="<option value='".$value."' ";
1.284 albertel 401: if ($env{'form.'.$name} eq $value) {
1.235 albertel 402: $result.=" selected='on' ";
403: }
404: $result.='>';
405: return $result;
406: }
407:
1.105 albertel 408: sub problem_web_to_edit_header {
1.159 albertel 409: my ($rndseed)=@_;
1.406 albertel 410: my $result .= '<div class="LC_edit_problem_header">';
411:
412: if (!$Apache::lonhomework::parsing_a_task) {
413: $result .=
414: '<div class="LC_edit_problem_header_title">'.
415: &mt('Problem Testing').
416: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
417: '</div>';
418: } else {
419: $result .=
420: '<div class="LC_edit_problem_header_title">'.
421: &mt('Task Testing').
422: '</div>';
423: }
424:
1.315 albertel 425: my $show_all_foils_text =
426: ($Apache::lonhomework::parsing_a_task) ?
427: &mt(' Show All Instances')
428: : &mt(' Show All Foils');
429:
1.440 bisitz 430: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils"';
431: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.406 albertel 432: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
433:
434:
1.384 albertel 435:
1.406 albertel 436: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 437: if (!$Apache::lonhomework::parsing_a_task) {
438: $result.="
1.406 albertel 439: <div class='LC_edit_problem_header_row1'>
440: <span class=\"LC_nobreak\">
1.405 albertel 441: ".&mt("Problem Status:")."
1.235 albertel 442: <select name='problemstate'>
1.270 albertel 443: <option value=''></option>
1.235 albertel 444: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
445: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
446: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
447: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
448: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
449: </select>
1.406 albertel 450: </span>
451: <span class=\"LC_nobreak\">
1.405 albertel 452: ".&mt("Problem Type:")."
1.235 albertel 453: <select name='problemtype'>
1.270 albertel 454: <option value=''></option>
1.242 albertel 455: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 456: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 457: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 458: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 459: </select>
1.406 albertel 460: </span>
461: $show_all
462: </div>
463: <div class='LC_edit_problem_header_row2'>
464: <span class=\"LC_nobreak\">
1.405 albertel 465: ".&mt("Feedback Mode:")."
1.235 albertel 466: <select name='problemstatus'>
467: <option value=''></option>
1.242 albertel 468: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 469: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
470: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 471: </select>
1.406 albertel 472: </span>
473: ";
474:
1.376 albertel 475: } elsif ($Apache::lonhomework::parsing_a_task) {
476: $result.="
1.406 albertel 477: <div class='LC_edit_problem_header_row1'>
478: <span class=\"LC_nobreak\">
1.405 albertel 479: ".&mt("Problem Status:")."
1.376 albertel 480: <select name='problemstate'>
481: <option value=''></option>
482: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
483: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
484: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
485: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
486: </select>
1.406 albertel 487: </span>
488: $show_all
489: ";
490: }
491: $result.='
492: <span class="LC_nobreak">
493: '.&mt('Apply style file: ').'
494: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
495: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
496: </span>
1.422 www 497: </div>
498: <div class="LC_edit_problem_header_row1">'.
499: &Apache::lonxml::renderingoptions().'
1.406 albertel 500: </div>
501: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
502: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
503: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
504: </div>
505: <hr class="LC_edit_problem_divide" />
506: <div class="LC_edit_problem_header_randomize_row">
507: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
508: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
509: <input type="text" name="rndseed" size="10" value="'.
510: $rndseed.'"
511: onchange="javascript:document.lonhomework.changerandseed.click()" />';
512:
513: if (!$Apache::lonhomework::parsing_a_task) {
514: my $numtoanalyze=$env{'form.numtoanalyze'};
515: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 516: $result .= '<span class="LC_nobreak">'.
517: &mt('[_1] for [_2] versions.',
1.416 raeburn 518: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 519: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
520: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 521: $numtoanalyze.'" size="5" />').
522: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
523: '</span>';
524:
1.313 albertel 525: }
1.406 albertel 526:
527: $result.='
528: </div>
1.447 ! bisitz 529: <hr class="LC_edit_problem_divide" />
! 530: <div>';
1.416 raeburn 531: $result.='<input type="hidden" name="problemmode" value="view" />';
532: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
533: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
534: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
535: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 536: $result.='
537: </div>
1.447 ! bisitz 538: <hr class="LC_edit_problem_divide" />
1.409 albertel 539: '.&Apache::lonxml::message_location().'
1.406 albertel 540: </div>';
1.159 albertel 541: return $result;
1.48 albertel 542: }
543:
1.65 albertel 544: sub initialize_storage {
1.357 albertel 545: my ($given_symb) = @_;
1.353 albertel 546: undef(%Apache::lonhomework::results);
547: undef(%Apache::lonhomework::history);
1.357 albertel 548: my ($symb,$courseid,$domain,$name) =
1.367 albertel 549: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 550:
551: # anonymous users (CODEd exams) have no data
552: if ($name eq 'anonymous'
553: && !defined($domain)) {
554: return;
555: }
556:
1.333 albertel 557: if ($env{'request.state'} eq 'construct'
558: || $symb eq ''
559: || $Apache::lonhomework::type eq 'practice') {
560:
561: my $namespace = $symb || $env{'request.uri'};
562: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 563: ($env{'form.resetdata'} eq &mt('New Problem Variation')
564: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 565: $env{'form.newrandomization'} eq &mt('New Randomization')) {
566: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
567: &Apache::lonxml::debug("Attempt reset");
568: }
1.159 albertel 569: %Apache::lonhomework::history=
1.333 albertel 570: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 571: my ($temp)=keys %Apache::lonhomework::history ;
572: &Apache::lonxml::debug("Return message of $temp");
573: } else {
574: %Apache::lonhomework::history=
575: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
576: }
1.353 albertel 577:
1.159 albertel 578: #ignore error conditions
1.67 albertel 579: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 580: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 581: }
582:
1.435 jms 583: =pod
584:
585: =item finalize_storage()
586:
587: Stores away the result has to a student's environment
588: checks form.grade_ for specific values, other wises stores
589: to the running users environment
590: Will increment totals for attempts, students, and corrects
591: if running user has student role.
592:
593: =cut
594:
595:
1.65 albertel 596: sub finalize_storage {
1.357 albertel 597: my ($given_symb) = @_;
1.159 albertel 598: my $result;
1.289 albertel 599: if (%Apache::lonhomework::results) {
1.323 albertel 600: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
601: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 602: my ($symb,$courseid,$domain,$name) =
1.367 albertel 603: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 604: if ($env{'request.state'} eq 'construct'
605: || $symb eq ''
606: || $Apache::lonhomework::type eq 'practice') {
607: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 608: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 609: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 610: $namespace,'',$domain,$name);
1.159 albertel 611: &Apache::lonxml::debug('Construct Store return message:'.$result);
612: } else {
613: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
614: $symb,$courseid,$domain,$name);
615: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 616: if ($env{'request.role'} =~/^st/) {
617: &store_aggregates($symb,$courseid);
618: }
1.159 albertel 619: }
1.323 albertel 620: } else {
621: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 622: }
1.159 albertel 623: return $result;
1.65 albertel 624: }
625:
1.435 jms 626: =pod
627:
628: item store_aggregates()
629:
630: Sends hash of values to be incremented in nohist_resourcetracker.db
631: for the course. Increments total number of attempts, unique students
632: and corrects for each part for an instance of a problem, as appropriate.
633:
634: =cut
635:
1.285 raeburn 636: sub store_aggregates {
637: my ($symb,$courseid) = @_;
1.286 albertel 638: my %aggregate;
639: my @parts;
1.288 albertel 640: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
641: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 642: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 643: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 644: push(@parts, $1);
1.285 raeburn 645: }
646: }
1.286 albertel 647: foreach my $part (@parts) {
648: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
649: eq 'APPROX_ANS' ||
650: $Apache::lonhomework::results{'resource.'.$part.'.award'}
651: eq 'EXACT_ANS') {
1.287 albertel 652: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 653: }
1.286 albertel 654: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 655: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 656: } else {
1.293 albertel 657: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 658: if ($last_reset) {
1.293 albertel 659: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 660: $aggregate{$symb."\0".$part."\0users"} = 1;
661: }
662: }
1.285 raeburn 663: }
1.287 albertel 664: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 665: }
1.292 raeburn 666: if (keys (%aggregate) > 0) {
1.289 albertel 667: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 668: $cdomain,$cname);
669: }
670: }
1.289 albertel 671:
1.65 albertel 672: sub checkout_msg {
1.211 albertel 673: my %lt=&Apache::lonlocal::texthash(
674: 'resource'=>'The resource needs to be checked out',
675: '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.',
676: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
677: 'checkout'=>'Check out Exam for Viewing',
678: 'checkout?'=>'Check out Exam?');
1.352 albertel 679: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 680: return (<<ENDCHECKOUT);
1.211 albertel 681: <h2>$lt{'resource'}</h2>
682: <p>$lt{'id_expln'}</p>
683: <font color="red">
684: <p>$lt{'warning'}</p>
1.91 albertel 685: </font>
1.444 bisitz 686: <form name="checkout" method="post" action="$uri">
1.91 albertel 687: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 688: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 689: </form>
690: ENDCHECKOUT
691: }
692:
1.252 albertel 693: sub firstaccess_msg {
1.253 albertel 694: my ($time,$symb)=@_;
1.414 albertel 695: my $result;
696: my @interval=&Apache::lonnet::EXT("resource.0.interval");
697: if ($interval[1] eq 'map') {
698: my ($map)=&Apache::lonnet::decode_symb($symb);
699: my $foldertitle=&Apache::lonnet::gettitle($map);
700:
701: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 702: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
703: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
704: ,$foldertitle,$time)."</h2>";
1.414 albertel 705: } elsif ($interval[1] eq 'course') {
706: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 707: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
708: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
709: ,$course,$time)."</h2>";
1.414 albertel 710: } else {
711: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 712: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
713: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
714: ,$title,$time)."</h2>";
1.414 albertel 715: }
1.352 albertel 716: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 717: my $buttontext = &mt('Show Resource');
718: my $timertext = &mt('Start Timer?');
1.414 albertel 719: $result .= (<<ENDCHECKOUT);
1.444 bisitz 720: <form name="markaccess" method="post" action="$uri">
1.252 albertel 721: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 722: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 723: </form>
724: ENDCHECKOUT
1.414 albertel 725: return $result;
1.252 albertel 726: }
727:
1.204 albertel 728: sub init_problem_globals {
729: my ($type)=@_;
730: #initialize globals
1.308 foxr 731: # For problems, we start out in part 0 (outside a <part> tag).
732: # and part 0 is used to describe the main body of the <problem>
733: #
1.204 albertel 734: if ($type eq 'problem') {
735: $Apache::inputtags::part='0';
736: @Apache::inputtags::partlist=('0');
1.405 albertel 737: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 738: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 739:
1.266 albertel 740: } elsif ($type eq 'library') {
1.204 albertel 741: $Apache::inputtags::part='';
742: @Apache::inputtags::partlist=();
1.405 albertel 743: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 744: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 745:
1.304 albertel 746: } elsif ($type eq 'Task') {
747: $Apache::inputtags::part='0';
748: @Apache::inputtags::partlist=('0');
1.405 albertel 749: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 750: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 751: }
752: @Apache::inputtags::responselist = ();
753: @Apache::inputtags::importlist = ();
754: @Apache::inputtags::previous=();
755: @Apache::inputtags::previous_version=();
756: $Apache::structuretags::printanswer='No';
757: @Apache::structuretags::whileconds=();
758: @Apache::structuretags::whilebody=();
759: @Apache::structuretags::whileline=();
760: $Apache::lonhomework::scantronmode=0;
761: undef($Apache::lonhomework::name);
1.358 albertel 762: undef($Apache::lonhomework::default_type);
763: undef($Apache::lonhomework::type);
1.204 albertel 764: }
765:
766: sub reset_problem_globals {
767: my ($type)=@_;
768: undef(%Apache::lonhomework::history);
769: undef(%Apache::lonhomework::results);
770: undef($Apache::inputtags::part);
1.208 albertel 771: #don't undef this, lonhomework.pm takes care of this, we use this to
772: #detect if we try to do 2 problems in one file
773: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 774: undef($Apache::lonhomework::name);
1.358 albertel 775: undef($Apache::lonhomework::default_type);
776: undef($Apache::lonhomework::type);
777: undef($Apache::lonhomework::scantronmode);
778: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 779: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 780: }
781:
1.241 albertel 782: sub set_problem_state {
1.240 albertel 783: my ($part)=@_;
1.284 albertel 784: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 785: $Apache::lonhomework::history{"resource.$part.solved"}=
786: 'correct_by_student';
787: }
788: }
789:
1.241 albertel 790: sub get_problem_status {
791: my ($part)=@_;
1.267 albertel 792: my $problem_status;
1.284 albertel 793: if ($env{'request.state'} eq 'construct' &&
794: defined($env{'form.problemstatus'})) {
795: $problem_status=$env{'form.problemstatus'};
1.267 albertel 796: } else {
797: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
798: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 799: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 800: }
801: return $problem_status;
802: }
803:
1.9 albertel 804: sub start_problem {
1.326 albertel 805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 806:
1.311 foxr 807: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 808: if (!$Apache::lonxml::metamode) {
809: &Apache::lonxml::startredirection();
810: }
1.311 foxr 811:
1.308 foxr 812: # Problems don't nest and we don't allow more than one <problem> in
813: # a .problem file.
814: #
1.184 albertel 815: if ( $Apache::inputtags::part ne '' ||
816: $Apache::lonhomework::parsing_a_problem) {
817: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 818: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 819: return '';
820: }
1.184 albertel 821:
822: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 823: &init_problem_globals('problem');
1.166 albertel 824:
1.284 albertel 825: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 826: $Apache::lonhomework::scantronmode=1;
827: }
1.161 albertel 828:
1.159 albertel 829: if ($target ne 'analyze') {
1.415 raeburn 830: my $type = &Apache::lonnet::EXT('resource.0.type');
831: $Apache::lonhomework::type=$type;
1.284 albertel 832: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 833: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 834: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 835: }
1.332 albertel 836: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 837: }
1.164 albertel 838: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 839: my $uri=$env{'request.uri'};
1.159 albertel 840: if ($uri=~/\.(\w+)$/) {
841: $Apache::lonhomework::type=$1;
842: &Apache::lonxml::debug("Using type of $1");
843: } else {
844: $Apache::lonhomework::type='problem';
845: &Apache::lonxml::debug("Using default type, problem, :$uri:");
846: }
1.87 albertel 847: }
1.301 albertel 848: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 849:
1.363 albertel 850: &initialize_storage();
1.389 albertel 851: if ($target ne 'analyze'
852: && $env{'request.state'} eq 'construct') {
853: &set_problem_state('0');
854: }
855:
1.366 albertel 856: if ($target eq 'web') {
857: &Apache::lonxml::debug(" grading history ");
858: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
859: }
1.363 albertel 860:
1.159 albertel 861: #added vars to the scripting enviroment
1.213 albertel 862: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 863: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 864: &Apache::run::run($expression,$safeeval);
1.159 albertel 865: my $status;
866: my $accessmsg;
867:
1.343 albertel 868: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 869: my ($result,$form_tag_start);
1.354 albertel 870: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
871: || $target eq 'edit') {
1.350 albertel 872: ($result,$form_tag_start) =
873: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
874: $name);
875: }
876:
1.284 albertel 877: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 878:
879: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
880: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
881: $target eq 'tex') {
882: #handle exam checkout
883: if ($Apache::lonhomework::type eq 'exam') {
884: my $token=
885: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 886: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 887: $token=&Apache::lonxml::maketoken();
888: $Apache::lonhomework::history{"resource.0.outtoken"}=
889: $token;
890: }
1.343 albertel 891: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 892: }
1.284 albertel 893: if ($env{'form.markaccess'}) {
1.414 albertel 894: my @interval=&Apache::lonnet::EXT("resource.0.interval");
895: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 896: }
1.159 albertel 897: #handle rand seed in construction space
898: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 899: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 900: if ($env{'request.state'} ne "construct" &&
901: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 902: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
903: $rndseed.'" />'.
904: '<input type="submit" name="resetdata"
1.334 albertel 905: value="'.&mt('New Problem Variation').'" />';
906: if (exists($env{'form.username'})) {
907: $form_tag_start.=
1.164 albertel 908: '<input type="hidden" name="username"
1.284 albertel 909: value="'.$env{'form.username'}.'" />';
1.334 albertel 910: }
1.333 albertel 911: if ($env{'request.role.adv'}) {
1.267 albertel 912: $form_tag_start.=
1.440 bisitz 913: ' <label><input type="checkbox" name="showallfoils"';
1.284 albertel 914: if (defined($env{'form.showallfoils'})) {
1.440 bisitz 915: $form_tag_start.=' checked="checked"';
1.267 albertel 916: }
1.300 albertel 917: $form_tag_start.= ' />'.&mt(' Show All Foils').
918: '</label>';
1.267 albertel 919: }
1.417 www 920: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 921: $form_tag_start.=&practice_problem_header();
1.417 www 922: }
1.267 albertel 923: $form_tag_start.='<hr />';
1.162 albertel 924: }
1.324 albertel 925:
926: ($status,$accessmsg,my $slot_name,my $slot) =
927: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 928: push (@Apache::inputtags::status,$status);
1.324 albertel 929:
1.159 albertel 930: my $expression='$external::datestatus="'.$status.'";';
931: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
932: &Apache::run::run($expression,$safeeval);
933: &Apache::lonxml::debug("Got $status");
1.324 albertel 934:
1.159 albertel 935: if (( $status eq 'CLOSED' ) ||
936: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 937: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 938: ( $status eq 'BANNED') ||
1.216 albertel 939: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 940: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 941: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 942: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
943: $style);
1.159 albertel 944: if ( $target eq "web" ) {
1.343 albertel 945: my $msg;
1.159 albertel 946: if ($status eq 'UNAVAILABLE') {
1.245 albertel 947: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 948: } elsif ($status eq 'NOT_IN_A_SLOT') {
949: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 950: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 951: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 952: }
1.216 albertel 953: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 954: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 955: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 956: $msg.=&checkout_msg();
1.252 albertel 957: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 958: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 959: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 960: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 961: }
962: $result.=$msg.'<br />';
963: } elsif ($target eq 'tex') {
1.332 albertel 964: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
965: : '\begin{minipage}{\textwidth}';
1.443 foxr 966: $result.='\noindent \vskip 1 mm '.
1.332 albertel 967: $startminipage.'\vskip 0 mm';
1.159 albertel 968: if ($status eq 'UNAVAILABLE') {
1.211 albertel 969: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 970: } else {
1.211 albertel 971: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 972: }
973: }
1.324 albertel 974: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 975: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
976: $style);
1.324 albertel 977: if ($target eq 'web') {
1.375 albertel 978: $result .=
979: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 980: } elsif ($target eq 'grade') {
981: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
982: 'problem');
983: }
1.159 albertel 984: } elsif ($target eq 'web') {
1.360 albertel 985: if ($status eq 'CAN_ANSWER'
986: && $slot_name ne ''
987: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
988: # unproctored slot access, self checkin
989: &Apache::bridgetask::check_in('problem',undef,undef,
990: $slot_name);
991: }
1.368 albertel 992: $result.="\n $form_tag_start \t".
1.227 albertel 993: '<input type="hidden" name="submitted" value="yes" />';
994: # create a page header and exit
1.284 albertel 995: if ($env{'request.state'} eq "construct") {
996: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 997: if ($Apache::lonhomework::type eq 'practice') {
998: $result.= '<input type="submit" name="resetdata" '.
999: 'value="'.&mt('New Problem Variation').'" />'.
1000: &practice_problem_header().'<hr />';
1001: }
1.227 albertel 1002: }
1003: # if we are viewing someone else preserve that info
1.284 albertel 1004: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1005: foreach my $field ('symb','courseid','domain','username') {
1006: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1007: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1008: }
1009: }
1010: } elsif ($target eq 'tex') {
1.319 foxr 1011: $result .= 'INSERTTEXFRONTMATTERHERE';
1012:
1.99 sakharuk 1013: }
1.159 albertel 1014: } elsif ($target eq 'edit') {
1.343 albertel 1015: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1016: $Apache::lonxml::warnings_error_header=
1017: &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 1018: my $temp=&Apache::edit::insertlist($target,$token);
1019: $result.=$temp;
1020: } elsif ($target eq 'modified') {
1021: $result=$token->[4];
1022: } else {
1023: # page_start returned a starting result, delete it if we don't need it
1024: $result = '';
1.99 sakharuk 1025: }
1.159 albertel 1026: return $result;
1.9 albertel 1027: }
1028:
1029: sub end_problem {
1.159 albertel 1030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1031: my $result;
1.310 foxr 1032:
1.321 albertel 1033: if (!$Apache::lonxml::metamode) {
1034: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1035: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1036: }
1.319 foxr 1037:
1038: if ($target eq 'tex') {
1.321 albertel 1039: # Figure out the front matter and replace the
1040: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1041: # this in end_problem because whether or not we display due
1042: # dates depends on whether due dates have already been
1043: # displayed in the problem parts.
1044:
1.319 foxr 1045: my $frontmatter = '';
1046: my $startminipage = '';
1047: if (not $env{'form.problem_split'}=~/yes/) {
1048: $startminipage = '\begin{minipage}{\textwidth}';
1049: }
1050: my $id = $Apache::inputtags::part;
1051: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1052: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1053: my @packages = split /,/,$packages;
1054: my $allow_print_points = 0;
1055: foreach my $partial_key (@packages) {
1056: if ($partial_key=~m/^part_0$/) {
1057: $allow_print_points=1;
1058: }
1059: }
1060: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1061: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1062: if (lc($env{'course.'.$env{'request.course.id'}.
1063: '.disableexampointprint'}) eq 'yes') {
1064: $allow_print_points=0;
1065: }
1066: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1067: 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 1068: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1069: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1070:
1071: # Figure out what the due date is and if we need to print
1072: # it in the problem header. We have been logging the
1073: # last due date written to file.
1074:
1075: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1076: my $duedate = POSIX::strftime("%c",localtime($duetime));
1077: my $temp_file;
1078: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1079:
1080: # Figure out what the last printed due date is or set it
1081: # to the epoch if no duedates have been printed.
1082:
1083: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1084: if (-e $filename) {
1085: $temp_file = Apache::File->new($filename);
1086: my @due_file = <$temp_file>;
1087: $due_file_content = $due_file[$#due_file];
1088: chomp $due_file_content;
1089: }
1090:
1091: # We display the due date iff it is not the same as the last
1092: # duedate in problem header ($due_file_content), and
1093: # none of our parts displayed a duedate.
1094: #
1095: my $parts_with_displayduedate;
1096: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1097: $parts_with_displayduedate =
1098: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1099: } else {
1100: $parts_with_displayduedate = 0;
1101: }
1102: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1103: $temp_file = Apache::File->new('>'.$filename);
1104: print $temp_file "$duetime\n";
1105: if (not $env{'request.symb'} =~ m/\.page_/) {
1106: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1107: $frontmatter .= $begin_doc.
1108: '\textit{Due date: '.$duedate.'} '.$toc_line;
1109: } else {
1110: $frontmatter.= $begin_doc.$toc_line;
1111: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1112: }
1113: } else {
1.381 albertel 1114: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 1115: }
1116: } else {
1117: if (not $env{'request.symb'} =~ m/\.page_/) {
1118: $frontmatter .= $begin_doc.$toc_line;
1119: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1120: } else {
1.381 albertel 1121: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1122: }
1123: }
1124: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1125: }
1126:
1.159 albertel 1127: my $status=$Apache::inputtags::status['-1'];
1128: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1129: $target eq 'tex') {
1.249 albertel 1130: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1131: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1132: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1133: &Apache::inputtags::grade;
1.324 albertel 1134: } elsif ($status eq 'NEEDS_CHECKIN') {
1135: # no need to grade, and don't want to hide data
1.249 albertel 1136: } else {
1137: # move any submission data to .hidden
1138: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1139: }
1.159 albertel 1140: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1141: $Apache::inputtags::part eq '0' &&
1.252 albertel 1142: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1143: # if part is zero, no <part>s existed, so we need show the current
1144: # grading status
1145: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1146: $result.= $gradestatus;
1147: }
1148: if (
1.284 albertel 1149: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1150: ($target eq 'answer') || ($target eq 'tex')
1151: ) {
1.227 albertel 1152: if ($target ne 'tex' &&
1.284 albertel 1153: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1154: $result.="</form>";
1.348 albertel 1155: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1156: }
1157: if ($target eq 'web') {
1.346 albertel 1158: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1159: } elsif ($target eq 'tex') {
1.178 sakharuk 1160: my $endminipage = '';
1.284 albertel 1161: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1162: $endminipage = '\end{minipage}';
1163: }
1.284 albertel 1164: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1165: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1166: } else {
1.262 sakharuk 1167: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1168: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1169: $result .= $endminipage.'\end{document} ';
1170: } else {
1.382 albertel 1171: $result .= $endminipage;
1.262 sakharuk 1172: }
1.159 albertel 1173: }
1174: }
1175: }
1176: if ($target eq 'grade') {
1177: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1178: &finalize_storage();
1179: }
1.284 albertel 1180: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1181: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1182: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1183: # normally we get it from above, but in CSTR
1.172 albertel 1184: # we always show answer mode too.
1.159 albertel 1185: }
1186: } elsif ($target eq 'meta') {
1187: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1188: @Apache::inputtags::response=();
1.159 albertel 1189: $result=&Apache::response::mandatory_part_meta;
1190: }
1.215 albertel 1191: $result.=&Apache::response::meta_part_order();
1.258 albertel 1192: $result.=&Apache::response::meta_response_order();
1.159 albertel 1193: } elsif ($target eq 'edit') {
1194: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1195: $result .= &problem_edit_footer();
1.320 albertel 1196: } elsif ($target eq 'modified') {
1197: $result .= $token->[2];
1.159 albertel 1198: }
1.155 albertel 1199:
1.284 albertel 1200: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1201: &Apache::inputtags::check_for_duplicate_ids();
1202: }
1.204 albertel 1203:
1204: &reset_problem_globals('problem');
1.159 albertel 1205:
1206: return $result;
1.48 albertel 1207: }
1208:
1.108 albertel 1209:
1.48 albertel 1210: sub start_library {
1.159 albertel 1211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1212: my ($result,$form_tag_start);
1.371 albertel 1213: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1214: &init_problem_globals('library');
1215: $Apache::lonhomework::type='problem';
1216: }
1.159 albertel 1217: if ($target eq 'edit') {
1.343 albertel 1218: ($result,$form_tag_start)=
1219: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1220: 'Edit');
1221: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1222: my $temp=&Apache::edit::insertlist($target,$token);
1223: $result.=$temp;
1224: } elsif ($target eq 'modified') {
1225: $result=$token->[4];
1.340 albertel 1226: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1227: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1228: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1229: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1230: ($result,$form_tag_start)=
1231: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1232: $name);
1.159 albertel 1233: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1234: $result.=" \n $form_tag_start".
1.159 albertel 1235: '<input type="hidden" name="submitted" value="yes" />';
1236: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1237: if ($Apache::lonhomework::type eq 'practice') {
1238: $result.= '<input type="submit" name="resetdata" '.
1239: 'value="'.&mt('New Problem Variation').'" />'.
1240: &practice_problem_header().'<hr />';
1241: }
1.159 albertel 1242: }
1243: return $result;
1.48 albertel 1244: }
1245:
1246: sub end_library {
1.159 albertel 1247: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1248: my $result='';
1249: if ($target eq 'edit') {
1250: $result=&problem_edit_footer();
1.371 albertel 1251: } elsif ($target eq 'web'
1252: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1253: && $env{'request.state'} eq "construct") {
1.349 albertel 1254: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1255: }
1.371 albertel 1256: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1257: &reset_problem_globals('library');
1258: }
1.159 albertel 1259: return $result;
1.197 www 1260: }
1261:
1262: sub start_definetag {
1.326 albertel 1263: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1264:
1265: my $result;
1266:
1267: my $name = $token->[2]->{'name'};
1.326 albertel 1268: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1269: if ($target eq 'web') {
1270: if ($name=~/^\//) {
1271: $result=
1272: '<br /><table class="LC_sty_end"><tr><th>'.
1273: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1274: } else {
1275: $result=
1276: '<br /><table class="LC_sty_begin"><tr><th>'.
1277: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1278: }
1279: $skip = &HTML::Entities::encode($skip, '<>&"');
1280: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1281: }
1282: return $result;
1283: }
1284:
1285: sub end_definetag {
1286: return '';
1.1 albertel 1287: }
1288:
1289: sub start_block {
1.201 albertel 1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1291:
1292: my $result;
1.1 albertel 1293:
1.339 albertel 1294: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1295: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1296: my $code = $token->[2]->{'condition'};
1.385 albertel 1297: if (defined($code) && $code ne '') {
1.137 albertel 1298: if (!$Apache::lonxml::default_homework_loaded) {
1299: &Apache::lonxml::default_homework_load($safeeval);
1300: }
1.131 albertel 1301: $result = &Apache::run::run($code,$safeeval);
1302: &Apache::lonxml::debug("block :$code: returned :$result:");
1303: } else {
1304: $result='1';
1305: }
1306: if ( ! $result ) {
1.201 albertel 1307: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1308: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1309: }
1310: $result='';
1311: } elsif ($target eq 'edit') {
1312: $result .=&Apache::edit::tag_start($target,$token);
1313: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1314: $token,40);
1315: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1316: } elsif ($target eq 'modified') {
1317: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1318: $safeeval,'condition');
1319: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1320: }
1.131 albertel 1321: return $result;
1.1 albertel 1322: }
1323:
1324: sub end_block {
1.167 www 1325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1326: my $result;
1327: if ($target eq "edit") {
1328: $result.= &Apache::edit::tag_end($target,$token,'');
1329: }
1330: return $result;
1331: }
1332:
1333: sub start_languageblock {
1.201 albertel 1334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1335:
1336: my $result;
1337:
1.339 albertel 1338: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1339: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1340: my $include = $token->[2]->{'include'};
1341: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1342: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1343: # This should not even happen, since we should at least have the server language
1.398 www 1344: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1345: # Now loop over all languages in order of preference
1346: foreach my $preferred_language (@preferred_languages) {
1.394 www 1347: # If the languageblock has no arguments, show the contents
1.399 www 1348: $result=1;
1349: my $found=0;
1.394 www 1350: # Do we have an include argument?
1.398 www 1351: if ($include) {
1.394 www 1352: # If include is specified, by default, don't render the block
1.399 www 1353: $result=0;
1.398 www 1354: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1355: # ... but if my preferred language is included, render it
1.398 www 1356: if ($included_language eq $preferred_language) {
1.399 www 1357: $result=1;
1358: $found=1;
1.398 www 1359: }
1360: }
1361: }
1.394 www 1362: # Do we have an exclude argument?
1.398 www 1363: if ($exclude) {
1.399 www 1364: $result=1;
1.398 www 1365: foreach my $excluded_language (split(/\,/,$exclude)) {
1366: if ($excluded_language eq $preferred_language) {
1.399 www 1367: $result=0;
1368: $found=1;
1.398 www 1369: }
1370: }
1371: }
1.399 www 1372: if ($found) { last; }
1.398 www 1373: }
1.201 albertel 1374: if ( ! $result ) {
1375: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1376: $style);
1377: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1378: }
1379: $result='';
1.167 www 1380: } elsif ($target eq 'edit') {
1381: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1382: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1383: $token,40);
1.211 albertel 1384: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1385: $token,40);
1386: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1387: } elsif ($target eq 'modified') {
1388: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1389: $safeeval,'include',
1390: 'exclude');
1.167 www 1391: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1392: }
1393: return $result;
1394: }
1395:
1396: sub end_languageblock {
1.170 www 1397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1398: my $result;
1.201 albertel 1399: if ($target eq "edit") {
1.170 www 1400: $result.= &Apache::edit::tag_end($target,$token,'');
1401: }
1402: return $result;
1403: }
1404:
1.397 albertel 1405: {
1406: my %available_texts;
1407: sub start_translated {
1408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1409: &Apache::lonxml::register('Apache::structuretags',('lang'));
1410: undef(%available_texts);
1411: }
1412:
1413: sub end_translated {
1414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1415: my $result;
1416: #show the translation on viewable targets
1417: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1418: # or non-viewable targets, if it's embedded in something that
1419: # wants the output
1420: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1421: && &Apache::lonxml::in_redirection() ) ) {
1422: my @possibilities = keys(%available_texts);
1423: my $which =
1424: &Apache::loncommon::languages(\@possibilities) || 'default';
1425: $result = $available_texts{$which};
1426: }
1427: undef(%available_texts);
1428: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1429: return $result;
1430: }
1431:
1432:
1433: sub start_lang {
1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1435: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1436: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1437: &Apache::lonxml::startredirection();
1438: }
1439: return '';
1440: }
1441:
1442: sub end_lang {
1443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1444: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1445: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1446: my $result = &Apache::lonxml::endredirection();
1447: my $which = &Apache::lonxml::get_param('which',$parstack,
1448: $safeeval);
1.431 raeburn 1449: if ($which=~/\w/) {
1450: $available_texts{$which} = $result;
1451: }
1452: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1453: $safeeval);
1454: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1455: if ($language=~/\w/) {
1456: $available_texts{$language} = $result;
1457: }
1.427 bisitz 1458: }
1459:
1.397 albertel 1460: }
1461: return '';
1462: }
1463: }
1464:
1.170 www 1465: sub start_instructorcomment {
1.201 albertel 1466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1467:
1468: my $result;
1469:
1.339 albertel 1470: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1471: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1472: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1473: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1474: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1475: $parser,$style);
1.170 www 1476: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1477: }
1478: $result='';
1479: } elsif ($target eq 'edit') {
1480: $result .=&Apache::edit::tag_start($target,$token);
1481: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1482: }
1483: return $result;
1484: }
1485:
1486: sub end_instructorcomment {
1.159 albertel 1487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1488: my $result;
1489: if ($target eq "edit") {
1490: $result.= &Apache::edit::tag_end($target,$token,'');
1491: }
1492: return $result;
1.4 tsai 1493: }
1494:
1495: sub start_while {
1.326 albertel 1496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1497:
1.160 albertel 1498: my $result;
1.339 albertel 1499: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1500: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1501: my $code = $token->[2]->{'condition'};
1.4 tsai 1502:
1.160 albertel 1503: push( @Apache::structuretags::whileconds, $code);
1504: if (!$Apache::lonxml::default_homework_loaded) {
1505: &Apache::lonxml::default_homework_load($safeeval);
1506: }
1507: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1508: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1509: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1510: push( @Apache::structuretags::whileline, $token->[5]);
1511: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1512: if ( $result ) {
1513: &Apache::lonxml::newparser($parser,\$bodytext);
1514: }
1515: } elsif ($target eq 'edit') {
1516: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1517: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1518: $token,40);
1519: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1520: } elsif ($target eq 'modified') {
1521: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1522: $safeeval,'condition');
1523: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1524: }
1.160 albertel 1525: return $result;
1.4 tsai 1526: }
1527:
1528: sub end_while {
1.159 albertel 1529: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1530: my $result;
1531:
1.339 albertel 1532: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1533: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1534: my $code = pop(@Apache::structuretags::whileconds);
1535: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1536: my $line = pop(@Apache::structuretags::whileline);
1537: my $return = &Apache::run::run($code,$safeeval);
1538: my $starttime=time;
1539: my $error=0;
1540: while ($return) {
1541: if (time-$starttime >
1542: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1543: $return = 0; $error=1; next;
1.161 albertel 1544: }
1545: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1546: if ($target eq 'grade' || $target eq 'answer' ||
1547: $target eq 'analyze') {
1548: # grade/answer/analyze should produce no output but if we
1549: # are redirecting, the redirecter should know what to do
1550: # with the output
1551: if (!$Apache::lonxml::redirection) { undef($result); }
1552: }
1.161 albertel 1553: $return = &Apache::run::run($code,$safeeval);
1554: }
1555: if ($error) {
1.430 bisitz 1556: &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 1557: }
1558: } elsif ($target eq "edit") {
1559: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1560: }
1.160 albertel 1561: return $result;
1.1 albertel 1562: }
1.6 tsai 1563:
1.160 albertel 1564: # <randomlist show="1">
1.6 tsai 1565: # <tag1>..</tag1>
1566: # <tag2>..</tag2>
1567: # <tag3>..</tag3>
1.160 albertel 1568: # ...
1.6 tsai 1569: # </randomlist>
1570: sub start_randomlist {
1.326 albertel 1571: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1572: my $result;
1.339 albertel 1573: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1574: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1575: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1576: my $b_parser= HTML::LCParser->new(\$body);
1577: $b_parser->xml_mode(1);
1578: $b_parser->marked_sections(1);
1.159 albertel 1579: my $b_tok;
1580: my @randomlist;
1581: my $list_item;
1582: while($b_tok = $b_parser->get_token() ) {
1583: if($b_tok->[0] eq 'S') { # start tag
1584: # get content of the tag until matching end tag
1585: # get all text upto the matching tag
1586: # and push the content into @randomlist
1587: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1588: $b_parser);
1589: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1590: push(@randomlist,$list_item);
1591: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1592: # $list_item</b>";
1593: }
1594: if($b_tok->[0] eq 'T') { # text
1595: # what to do with text in between tags?
1596: # print "<b>TEXT $b_tok->[1]</b><br />";
1597: }
1598: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1599: # print "<b>END-TAG $b_tok->[1]</b><br />";
1600: # }
1601: }
1.303 albertel 1602: if (@randomlist) {
1603: my @idx_arr = (0 .. $#randomlist);
1604: &Apache::structuretags::shuffle(\@idx_arr);
1605: my $bodytext = '';
1606: my $show=$#randomlist;
1607: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1608: $showarg--;
1609: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1610: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1611: my @currlist;
1612: my $part = $Apache::inputtags::part;
1613: if ($part ne '') {
1614: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1615: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1616: if (!(grep(/^\Q$part\E$/,@currlist))) {
1617: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1618: }
1619: } else {
1620: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1621: }
1622: }
1623: }
1.303 albertel 1624: for(0 .. $show) {
1625: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1626: }
1627: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1628: }
1629: } elsif ($target eq 'edit' ) {
1630: $result .=&Apache::edit::tag_start($target,$token);
1631: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1632: $token,5);
1633: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1634: } elsif ($target eq 'modified' ) {
1635: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1636: $safeeval,'show');
1637: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1638: }
1639: return $result;
1.7 tsai 1640: }
1641:
1642: sub shuffle {
1643: my $a=shift;
1644: my $i;
1.303 albertel 1645: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1646: &Apache::response::pushrandomnumber();
1.159 albertel 1647: for($i=@$a;--$i;) {
1648: my $j=int(&Math::Random::random_uniform() * ($i+1));
1649: next if $i == $j;
1650: @$a[$i,$j] = @$a[$j,$i];
1651: }
1.251 albertel 1652: &Apache::response::poprandomnumber();
1.7 tsai 1653: }
1.6 tsai 1654: }
1655:
1656: sub end_randomlist {
1.159 albertel 1657: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1658: my $result;
1659: if ($target eq 'edit' ) {
1660: $result=&Apache::edit::tag_end($target,$token,
1661: 'End Randomly Parsed Block');
1662: }
1663: return $result;
1.6 tsai 1664: }
1665:
1.283 albertel 1666: sub ordered_show_check {
1667: my $last_part=$Apache::inputtags::partlist[-2];
1668: my $in_order=
1669: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1670: my $in_order_show=1;
1671: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1672: $in_order_show=&Apache::response::check_status($last_part);
1673: }
1674: return $in_order_show;
1675: }
1676:
1.11 albertel 1677: sub start_part {
1.326 albertel 1678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1679: if (!$Apache::lonxml::metamode) {
1680: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1681: # duedates.
1682: }
1.159 albertel 1683: my $result='';
1.386 albertel 1684: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1685: $Apache::inputtags::part=$id;
1.177 albertel 1686: push(@Apache::inputtags::partlist,$id);
1687: @Apache::inputtags::response=();
1.159 albertel 1688: @Apache::inputtags::previous=();
1689: @Apache::inputtags::previous_version=();
1.405 albertel 1690: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1691: &Apache::response::reset_params();
1692:
1.159 albertel 1693: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1694: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1695: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1696: my $in_order_show=&ordered_show_check();
1.214 albertel 1697: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1698: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1699: &Apache::run::run($expression,$safeeval);
1.159 albertel 1700:
1701: if ($target eq 'meta') {
1.224 www 1702: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1703: return &Apache::response::mandatory_part_meta.
1704: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1705: } elsif ($target eq 'web' || $target eq 'grade' ||
1706: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1707: if ($hidden || !$in_order_show) {
1.326 albertel 1708: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1709: } else {
1710: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1711: push (@Apache::inputtags::status,$status);
1712: my $expression='$external::datestatus="'.$status.'";';
1713: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1714: &Apache::run::run($expression,$safeeval);
1.284 albertel 1715: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1716: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1717: }
1.216 albertel 1718: if (( $status eq 'CLOSED' ) ||
1719: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1720: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1721: ( $status eq 'BANNED') ||
1722: ( $status eq 'UNAVAILABLE') ||
1723: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1724: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1725: $style);
1.159 albertel 1726: if ( $target eq "web" ) {
1.211 albertel 1727: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1728: } elsif ( $target eq 'tex' ) {
1.284 albertel 1729: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1730: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1731: } else {
1.211 albertel 1732: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1733: }
1.159 albertel 1734: }
1735: } else {
1736: if ($target eq 'tex') {
1.284 albertel 1737: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1738: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1739: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1740: } else {
1741: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1742: }
1.195 sakharuk 1743: }
1.159 albertel 1744: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1745: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1746: my @allkeys = split /,/,$allkeys;
1747: my $allow_print_points = 0;
1748: foreach my $partial_key (@allkeys) {
1.230 albertel 1749: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1750: if ($1 ne '0') {$allow_print_points=1;}
1751: }
1752: }
1.275 albertel 1753: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1754: if (defined($maxtries) && $maxtries < 0) {
1755: $allow_print_points=0;
1756: }
1.302 albertel 1757: if (lc($env{'course.'.$env{'request.course.id'}.
1758: '.disableexampointprint'}) eq 'yes') {
1759: $allow_print_points=0;
1760: }
1.222 sakharuk 1761: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1762: } elsif ($target eq 'web') {
1.356 www 1763: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1764: }
1765: }
1766: }
1767: } elsif ($target eq 'edit') {
1768: $result.=&Apache::edit::tag_start($target,$token);
1769: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1770: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1771: ' '.
1772: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1773: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1774: } elsif ($target eq 'modified') {
1775: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1776: $safeeval,'id','display');
1.159 albertel 1777: if ($constructtag) {
1.225 albertel 1778: #limiting ids to only letters numbers, and space
1.224 www 1779: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1780: $result = &Apache::edit::rebuild_tag($token);
1781: }
1782: }
1783: return $result;
1.11 albertel 1784: }
1785:
1786: sub end_part {
1.159 albertel 1787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1788: &Apache::lonxml::debug("in end_part $target ");
1789: my $status=$Apache::inputtags::status['-1'];
1790: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1791: my $in_order_show=&ordered_show_check();
1.321 albertel 1792: my $result;
1793: if (!$Apache::lonxml::metamode) {
1794: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1795: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1796: }
1.312 albertel 1797: if ($target eq 'grade') {
1.249 albertel 1798: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1799: !$hidden && $in_order_show) {
1.311 foxr 1800: $result.=&Apache::inputtags::grade;
1.249 albertel 1801: } else {
1802: # move any submission data to .hidden
1803: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1804: }
1.283 albertel 1805: } elsif (($target eq 'web' || $target eq 'tex') &&
1806: !$hidden && $in_order_show) {
1.159 albertel 1807: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1808: $target);
1.212 albertel 1809: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1810: $gradestatus='';
1811: }
1.311 foxr 1812: $result.=$gradestatus;
1.265 sakharuk 1813: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1814: } elsif ($target eq 'edit') {
1.311 foxr 1815: $result.=&Apache::edit::end_table();
1.322 albertel 1816: } elsif ($target eq 'modified') {
1817: $result .= $token->[2];
1.159 albertel 1818: }
1819: pop @Apache::inputtags::status;
1820: $Apache::inputtags::part='';
1.295 albertel 1821: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1822: return $result;
1.11 albertel 1823: }
1.1 albertel 1824:
1.25 albertel 1825: sub start_preduedate {
1.326 albertel 1826: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1827: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1828: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1829: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1830: if (!$Apache::lonhomework::scantronmode &&
1831: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1832: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1833: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1834: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1835: }
1.24 albertel 1836: }
1.159 albertel 1837: return '';
1.24 albertel 1838: }
1839:
1.25 albertel 1840: sub end_preduedate {
1.159 albertel 1841: return '';
1.24 albertel 1842: }
1843:
1.369 foxr 1844: # In all the modes where <postanswerdate> text is
1845: # displayable, all we do is eat up the text between the start/stop
1846: # tags if the conditions are not right to display it.
1.25 albertel 1847: sub start_postanswerdate {
1.326 albertel 1848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1849: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1850: &Apache::lonnet::allowed('pav',
1851: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1852: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1853: $target eq 'tex' ) {
1.300 albertel 1854: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1855: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1856: (($target eq 'tex') && !$pav)) {
1.326 albertel 1857: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1858: }
1859: }
1860: return '';
1.24 albertel 1861: }
1862:
1.25 albertel 1863: sub end_postanswerdate {
1.159 albertel 1864: return '';
1.24 albertel 1865: }
1866:
1.25 albertel 1867: sub start_notsolved {
1.326 albertel 1868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1869: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1870: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1871: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1872: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1873: if ($gradestatus =~ /^correct/ &&
1874: &Apache::response::show_answer()) {
1.159 albertel 1875: &Apache::lonxml::debug("skipping");
1.326 albertel 1876: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1877: }
1.24 albertel 1878: }
1.159 albertel 1879: return '';
1.24 albertel 1880: }
1881:
1.25 albertel 1882: sub end_notsolved {
1.159 albertel 1883: return '';
1.24 albertel 1884: }
1885:
1886: sub start_solved {
1.326 albertel 1887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1888: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1889: $target eq 'tex') {
1890: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1891: if ($gradestatus !~ /^correct/ ||
1892: !&Apache::response::show_answer()) {
1.326 albertel 1893: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1894: }
1.24 albertel 1895: }
1.159 albertel 1896: return '';
1.24 albertel 1897: }
1898:
1899: sub end_solved {
1.248 albertel 1900: return '';
1901: }
1902:
1903: sub start_problemtype {
1.326 albertel 1904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1905: my $result;
1.339 albertel 1906: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1907: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1908: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1909: if (!defined($mode)) { $mode='show'; }
1910: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1911: my $found=0;
1912: foreach my $type (split(',',$for)) {
1913: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1914: }
1915: if ($mode eq 'show' && !$found) {
1.326 albertel 1916: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1917: }
1918: if ($mode eq 'hide' && $found) {
1.326 albertel 1919: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1920: }
1921: } elsif ($target eq 'edit') {
1922: $result .=&Apache::edit::tag_start($target,$token);
1923: $result.=&Apache::edit::select_arg('Mode:','mode',
1924: [['show','Show'],
1925: ['hide','Hide']]
1926: ,$token);
1927: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1928: [ ['exam','Exam/Quiz Problem'],
1929: ['survey','Survey'],
1.428 raeburn 1930: ['problem','Homework Problem'],
1931: ['practice','Practice Problem'] ]
1.248 albertel 1932: ,$token);
1933: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1934: } elsif ($target eq 'modified') {
1935: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1936: $safeeval,'mode','for');
1937: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1938: }
1939: return $result;
1940: }
1941:
1942: sub end_problemtype {
1.159 albertel 1943: return '';
1.24 albertel 1944: }
1.34 albertel 1945:
1946: sub start_startouttext {
1.159 albertel 1947: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1948: my @result=(''.'');
1949: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1950:
1951: my $nesting =
1952: &Apache::lonxml::set_state('outtext',
1953: &Apache::lonxml::get_state('outtext')+1);
1954: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1955: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1956: }
1.159 albertel 1957: return (@result);
1.34 albertel 1958: }
1.159 albertel 1959:
1.34 albertel 1960: sub end_startouttext {
1.326 albertel 1961: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1962: my $result='';
1963: my $text='';
1964: if ($target eq 'edit') {
1.424 foxr 1965: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1966: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1967: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1968: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1969: .&Apache::edit::deletelist($target,$token)
1970: .'</span></td>';
1.425 raeburn 1971: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1972: $result .= '<td align="left">'
1973: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1974: .'</td>'
1975: .'<td>'
1976: .&Apache::edit::insertlist($target,$token)
1977: .'</td>';
1978: }
1.425 raeburn 1979: $result.='<td align="right" valign="top">' .
1.434 foxr 1980: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1981: &Apache::edit::end_row().
1.362 albertel 1982: &Apache::edit::start_spanning_row()."\n".
1.255 www 1983: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1984: }
1985: if ($target eq 'modified') {
1.219 albertel 1986: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1987: }
1988: if ($target eq 'tex') {
1989: $result .= '\noindent ';
1990: }
1991: return $result;
1.34 albertel 1992: }
1.159 albertel 1993:
1.34 albertel 1994: sub start_endouttext {
1.159 albertel 1995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1996: my $result='';
1997: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1998: if ($target eq "modified") {
1999: $result='<endouttext />'.
1.377 albertel 2000: &Apache::edit::handle_insertafter('startouttext');
2001: }
1.404 albertel 2002:
2003: my $nesting =
2004: &Apache::lonxml::set_state('outtext',
2005: &Apache::lonxml::get_state('outtext')-1);
2006: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2007: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2008: &Apache::lonxml::set_state('outtext', 0);
2009: }
1.159 albertel 2010: return $result;
1.34 albertel 2011: }
1.159 albertel 2012:
1.34 albertel 2013: sub end_endouttext {
1.159 albertel 2014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2015: my @result=('','');
2016: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2017: return (@result);
1.34 albertel 2018: }
1.159 albertel 2019:
1.45 albertel 2020: sub delete_startouttext {
1.326 albertel 2021: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2022: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2023: my $text=$$parser['-1']->get_text("/endouttext");
2024: my $ntoken=$$parser['-1']->get_token();
2025: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2026: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2027: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2028: # they did the last time round
2029: &Apache::lonxml::increasedepth($ntoken);
2030: &Apache::lonxml::decreasedepth($ntoken);
2031: return 1;
1.193 www 2032: }
2033:
2034: sub start_simpleeditbutton {
2035: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2036: my $result='';
1.284 albertel 2037: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2038: ($target eq 'web') &&
1.330 albertel 2039: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2040: my $url=$env{'request.noversionuri'};
1.193 www 2041: $url=~s/\?.*$//;
1.367 albertel 2042: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2043: # Warning make more sense and is more important on edit screen
2044: # $result='<p class="LC_warning">'
2045: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2046: # .&Apache::loncommon::help_open_topic('Caching')
2047: # .'</p>';
2048: $result.=&Apache::lontemplate::start_functionslist()
2049: .&Apache::lontemplate::item_functionslist(
2050: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a>')
2051: .&Apache::lontemplate::end_functionslist();
2052:
1.193 www 2053: }
2054: return $result;
2055: }
2056:
2057: sub end_simpleeditbutton {
2058: return '';
1.45 albertel 2059: }
1.34 albertel 2060:
1.428 raeburn 2061: sub practice_problem_header {
2062: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2063: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2064: '</span>';
2065: }
2066:
1.1 albertel 2067: 1;
2068: __END__
1.435 jms 2069:
2070: =pod
2071:
2072: =back
2073:
2074: =cut
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