Annotation of loncom/homework/structuretags.pm, revision 1.448
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.448 ! bisitz 4: # $Id: structuretags.pm,v 1.447 2009/05/28 12:39:17 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));
1.448 ! bisitz 1077: my $duedate_text = &mt('Due date: [_1]'
! 1078: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1079: my $temp_file;
1080: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1081:
1082: # Figure out what the last printed due date is or set it
1083: # to the epoch if no duedates have been printed.
1084:
1085: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1086: if (-e $filename) {
1087: $temp_file = Apache::File->new($filename);
1088: my @due_file = <$temp_file>;
1089: $due_file_content = $due_file[$#due_file];
1090: chomp $due_file_content;
1091: }
1092:
1093: # We display the due date iff it is not the same as the last
1094: # duedate in problem header ($due_file_content), and
1095: # none of our parts displayed a duedate.
1096: #
1097: my $parts_with_displayduedate;
1098: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1099: $parts_with_displayduedate =
1100: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1101: } else {
1102: $parts_with_displayduedate = 0;
1103: }
1104: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1105: $temp_file = Apache::File->new('>'.$filename);
1106: print $temp_file "$duetime\n";
1107: if (not $env{'request.symb'} =~ m/\.page_/) {
1108: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1109: $frontmatter .= $begin_doc.
1.448 ! bisitz 1110: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1111: } else {
1112: $frontmatter.= $begin_doc.$toc_line;
1113: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1114: }
1115: } else {
1.448 ! bisitz 1116: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1117: }
1118: } else {
1119: if (not $env{'request.symb'} =~ m/\.page_/) {
1120: $frontmatter .= $begin_doc.$toc_line;
1121: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1122: } else {
1.381 albertel 1123: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1124: }
1125: }
1126: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1127: }
1128:
1.159 albertel 1129: my $status=$Apache::inputtags::status['-1'];
1130: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1131: $target eq 'tex') {
1.249 albertel 1132: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1133: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1134: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1135: &Apache::inputtags::grade;
1.324 albertel 1136: } elsif ($status eq 'NEEDS_CHECKIN') {
1137: # no need to grade, and don't want to hide data
1.249 albertel 1138: } else {
1139: # move any submission data to .hidden
1140: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1141: }
1.159 albertel 1142: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1143: $Apache::inputtags::part eq '0' &&
1.252 albertel 1144: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1145: # if part is zero, no <part>s existed, so we need show the current
1146: # grading status
1147: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1148: $result.= $gradestatus;
1149: }
1150: if (
1.284 albertel 1151: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1152: ($target eq 'answer') || ($target eq 'tex')
1153: ) {
1.227 albertel 1154: if ($target ne 'tex' &&
1.284 albertel 1155: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1156: $result.="</form>";
1.348 albertel 1157: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1158: }
1159: if ($target eq 'web') {
1.346 albertel 1160: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1161: } elsif ($target eq 'tex') {
1.178 sakharuk 1162: my $endminipage = '';
1.284 albertel 1163: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1164: $endminipage = '\end{minipage}';
1165: }
1.284 albertel 1166: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1167: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1168: } else {
1.262 sakharuk 1169: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1170: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1171: $result .= $endminipage.'\end{document} ';
1172: } else {
1.382 albertel 1173: $result .= $endminipage;
1.262 sakharuk 1174: }
1.159 albertel 1175: }
1176: }
1177: }
1178: if ($target eq 'grade') {
1179: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1180: &finalize_storage();
1181: }
1.284 albertel 1182: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1183: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1184: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1185: # normally we get it from above, but in CSTR
1.172 albertel 1186: # we always show answer mode too.
1.159 albertel 1187: }
1188: } elsif ($target eq 'meta') {
1189: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1190: @Apache::inputtags::response=();
1.159 albertel 1191: $result=&Apache::response::mandatory_part_meta;
1192: }
1.215 albertel 1193: $result.=&Apache::response::meta_part_order();
1.258 albertel 1194: $result.=&Apache::response::meta_response_order();
1.159 albertel 1195: } elsif ($target eq 'edit') {
1196: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1197: $result .= &problem_edit_footer();
1.320 albertel 1198: } elsif ($target eq 'modified') {
1199: $result .= $token->[2];
1.159 albertel 1200: }
1.155 albertel 1201:
1.284 albertel 1202: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1203: &Apache::inputtags::check_for_duplicate_ids();
1204: }
1.204 albertel 1205:
1206: &reset_problem_globals('problem');
1.159 albertel 1207:
1208: return $result;
1.48 albertel 1209: }
1210:
1.108 albertel 1211:
1.48 albertel 1212: sub start_library {
1.159 albertel 1213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1214: my ($result,$form_tag_start);
1.371 albertel 1215: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1216: &init_problem_globals('library');
1217: $Apache::lonhomework::type='problem';
1218: }
1.159 albertel 1219: if ($target eq 'edit') {
1.343 albertel 1220: ($result,$form_tag_start)=
1221: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1222: 'Edit');
1223: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1224: my $temp=&Apache::edit::insertlist($target,$token);
1225: $result.=$temp;
1226: } elsif ($target eq 'modified') {
1227: $result=$token->[4];
1.340 albertel 1228: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1229: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1230: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1231: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1232: ($result,$form_tag_start)=
1233: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1234: $name);
1.159 albertel 1235: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1236: $result.=" \n $form_tag_start".
1.159 albertel 1237: '<input type="hidden" name="submitted" value="yes" />';
1238: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1239: if ($Apache::lonhomework::type eq 'practice') {
1240: $result.= '<input type="submit" name="resetdata" '.
1241: 'value="'.&mt('New Problem Variation').'" />'.
1242: &practice_problem_header().'<hr />';
1243: }
1.159 albertel 1244: }
1245: return $result;
1.48 albertel 1246: }
1247:
1248: sub end_library {
1.159 albertel 1249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1250: my $result='';
1251: if ($target eq 'edit') {
1252: $result=&problem_edit_footer();
1.371 albertel 1253: } elsif ($target eq 'web'
1254: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1255: && $env{'request.state'} eq "construct") {
1.349 albertel 1256: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1257: }
1.371 albertel 1258: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1259: &reset_problem_globals('library');
1260: }
1.159 albertel 1261: return $result;
1.197 www 1262: }
1263:
1264: sub start_definetag {
1.326 albertel 1265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1266:
1267: my $result;
1268:
1269: my $name = $token->[2]->{'name'};
1.326 albertel 1270: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1271: if ($target eq 'web') {
1272: if ($name=~/^\//) {
1273: $result=
1274: '<br /><table class="LC_sty_end"><tr><th>'.
1275: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1276: } else {
1277: $result=
1278: '<br /><table class="LC_sty_begin"><tr><th>'.
1279: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1280: }
1281: $skip = &HTML::Entities::encode($skip, '<>&"');
1282: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1283: }
1284: return $result;
1285: }
1286:
1287: sub end_definetag {
1288: return '';
1.1 albertel 1289: }
1290:
1291: sub start_block {
1.201 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1293:
1294: my $result;
1.1 albertel 1295:
1.339 albertel 1296: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1297: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1298: my $code = $token->[2]->{'condition'};
1.385 albertel 1299: if (defined($code) && $code ne '') {
1.137 albertel 1300: if (!$Apache::lonxml::default_homework_loaded) {
1301: &Apache::lonxml::default_homework_load($safeeval);
1302: }
1.131 albertel 1303: $result = &Apache::run::run($code,$safeeval);
1304: &Apache::lonxml::debug("block :$code: returned :$result:");
1305: } else {
1306: $result='1';
1307: }
1308: if ( ! $result ) {
1.201 albertel 1309: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1310: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1311: }
1312: $result='';
1313: } elsif ($target eq 'edit') {
1314: $result .=&Apache::edit::tag_start($target,$token);
1315: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1316: $token,40);
1317: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1318: } elsif ($target eq 'modified') {
1319: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1320: $safeeval,'condition');
1321: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1322: }
1.131 albertel 1323: return $result;
1.1 albertel 1324: }
1325:
1326: sub end_block {
1.167 www 1327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1328: my $result;
1329: if ($target eq "edit") {
1330: $result.= &Apache::edit::tag_end($target,$token,'');
1331: }
1332: return $result;
1333: }
1334:
1335: sub start_languageblock {
1.201 albertel 1336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1337:
1338: my $result;
1339:
1.339 albertel 1340: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1341: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1342: my $include = $token->[2]->{'include'};
1343: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1344: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1345: # This should not even happen, since we should at least have the server language
1.398 www 1346: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1347: # Now loop over all languages in order of preference
1348: foreach my $preferred_language (@preferred_languages) {
1.394 www 1349: # If the languageblock has no arguments, show the contents
1.399 www 1350: $result=1;
1351: my $found=0;
1.394 www 1352: # Do we have an include argument?
1.398 www 1353: if ($include) {
1.394 www 1354: # If include is specified, by default, don't render the block
1.399 www 1355: $result=0;
1.398 www 1356: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1357: # ... but if my preferred language is included, render it
1.398 www 1358: if ($included_language eq $preferred_language) {
1.399 www 1359: $result=1;
1360: $found=1;
1.398 www 1361: }
1362: }
1363: }
1.394 www 1364: # Do we have an exclude argument?
1.398 www 1365: if ($exclude) {
1.399 www 1366: $result=1;
1.398 www 1367: foreach my $excluded_language (split(/\,/,$exclude)) {
1368: if ($excluded_language eq $preferred_language) {
1.399 www 1369: $result=0;
1370: $found=1;
1.398 www 1371: }
1372: }
1373: }
1.399 www 1374: if ($found) { last; }
1.398 www 1375: }
1.201 albertel 1376: if ( ! $result ) {
1377: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1378: $style);
1379: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1380: }
1381: $result='';
1.167 www 1382: } elsif ($target eq 'edit') {
1383: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1384: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1385: $token,40);
1.211 albertel 1386: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1387: $token,40);
1388: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1389: } elsif ($target eq 'modified') {
1390: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1391: $safeeval,'include',
1392: 'exclude');
1.167 www 1393: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1394: }
1395: return $result;
1396: }
1397:
1398: sub end_languageblock {
1.170 www 1399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1400: my $result;
1.201 albertel 1401: if ($target eq "edit") {
1.170 www 1402: $result.= &Apache::edit::tag_end($target,$token,'');
1403: }
1404: return $result;
1405: }
1406:
1.397 albertel 1407: {
1408: my %available_texts;
1409: sub start_translated {
1410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1411: &Apache::lonxml::register('Apache::structuretags',('lang'));
1412: undef(%available_texts);
1413: }
1414:
1415: sub end_translated {
1416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1417: my $result;
1418: #show the translation on viewable targets
1419: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1420: # or non-viewable targets, if it's embedded in something that
1421: # wants the output
1422: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1423: && &Apache::lonxml::in_redirection() ) ) {
1424: my @possibilities = keys(%available_texts);
1425: my $which =
1426: &Apache::loncommon::languages(\@possibilities) || 'default';
1427: $result = $available_texts{$which};
1428: }
1429: undef(%available_texts);
1430: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1431: return $result;
1432: }
1433:
1434:
1435: sub start_lang {
1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1437: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1438: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1439: &Apache::lonxml::startredirection();
1440: }
1441: return '';
1442: }
1443:
1444: sub end_lang {
1445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1446: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1447: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1448: my $result = &Apache::lonxml::endredirection();
1449: my $which = &Apache::lonxml::get_param('which',$parstack,
1450: $safeeval);
1.431 raeburn 1451: if ($which=~/\w/) {
1452: $available_texts{$which} = $result;
1453: }
1454: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1455: $safeeval);
1456: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1457: if ($language=~/\w/) {
1458: $available_texts{$language} = $result;
1459: }
1.427 bisitz 1460: }
1461:
1.397 albertel 1462: }
1463: return '';
1464: }
1465: }
1466:
1.170 www 1467: sub start_instructorcomment {
1.201 albertel 1468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1469:
1470: my $result;
1471:
1.339 albertel 1472: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1473: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1474: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1475: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1476: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1477: $parser,$style);
1.170 www 1478: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1479: }
1480: $result='';
1481: } elsif ($target eq 'edit') {
1482: $result .=&Apache::edit::tag_start($target,$token);
1483: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1484: }
1485: return $result;
1486: }
1487:
1488: sub end_instructorcomment {
1.159 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1490: my $result;
1491: if ($target eq "edit") {
1492: $result.= &Apache::edit::tag_end($target,$token,'');
1493: }
1494: return $result;
1.4 tsai 1495: }
1496:
1497: sub start_while {
1.326 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1499:
1.160 albertel 1500: my $result;
1.339 albertel 1501: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1502: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1503: my $code = $token->[2]->{'condition'};
1.4 tsai 1504:
1.160 albertel 1505: push( @Apache::structuretags::whileconds, $code);
1506: if (!$Apache::lonxml::default_homework_loaded) {
1507: &Apache::lonxml::default_homework_load($safeeval);
1508: }
1509: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1510: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1511: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1512: push( @Apache::structuretags::whileline, $token->[5]);
1513: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1514: if ( $result ) {
1515: &Apache::lonxml::newparser($parser,\$bodytext);
1516: }
1517: } elsif ($target eq 'edit') {
1518: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1519: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1520: $token,40);
1521: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1522: } elsif ($target eq 'modified') {
1523: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1524: $safeeval,'condition');
1525: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1526: }
1.160 albertel 1527: return $result;
1.4 tsai 1528: }
1529:
1530: sub end_while {
1.159 albertel 1531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1532: my $result;
1533:
1.339 albertel 1534: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1535: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1536: my $code = pop(@Apache::structuretags::whileconds);
1537: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1538: my $line = pop(@Apache::structuretags::whileline);
1539: my $return = &Apache::run::run($code,$safeeval);
1540: my $starttime=time;
1541: my $error=0;
1542: while ($return) {
1543: if (time-$starttime >
1544: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1545: $return = 0; $error=1; next;
1.161 albertel 1546: }
1547: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1548: if ($target eq 'grade' || $target eq 'answer' ||
1549: $target eq 'analyze') {
1550: # grade/answer/analyze should produce no output but if we
1551: # are redirecting, the redirecter should know what to do
1552: # with the output
1553: if (!$Apache::lonxml::redirection) { undef($result); }
1554: }
1.161 albertel 1555: $return = &Apache::run::run($code,$safeeval);
1556: }
1557: if ($error) {
1.430 bisitz 1558: &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 1559: }
1560: } elsif ($target eq "edit") {
1561: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1562: }
1.160 albertel 1563: return $result;
1.1 albertel 1564: }
1.6 tsai 1565:
1.160 albertel 1566: # <randomlist show="1">
1.6 tsai 1567: # <tag1>..</tag1>
1568: # <tag2>..</tag2>
1569: # <tag3>..</tag3>
1.160 albertel 1570: # ...
1.6 tsai 1571: # </randomlist>
1572: sub start_randomlist {
1.326 albertel 1573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1574: my $result;
1.339 albertel 1575: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1576: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1577: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1578: my $b_parser= HTML::LCParser->new(\$body);
1579: $b_parser->xml_mode(1);
1580: $b_parser->marked_sections(1);
1.159 albertel 1581: my $b_tok;
1582: my @randomlist;
1583: my $list_item;
1584: while($b_tok = $b_parser->get_token() ) {
1585: if($b_tok->[0] eq 'S') { # start tag
1586: # get content of the tag until matching end tag
1587: # get all text upto the matching tag
1588: # and push the content into @randomlist
1589: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1590: $b_parser);
1591: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1592: push(@randomlist,$list_item);
1593: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1594: # $list_item</b>";
1595: }
1596: if($b_tok->[0] eq 'T') { # text
1597: # what to do with text in between tags?
1598: # print "<b>TEXT $b_tok->[1]</b><br />";
1599: }
1600: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1601: # print "<b>END-TAG $b_tok->[1]</b><br />";
1602: # }
1603: }
1.303 albertel 1604: if (@randomlist) {
1605: my @idx_arr = (0 .. $#randomlist);
1606: &Apache::structuretags::shuffle(\@idx_arr);
1607: my $bodytext = '';
1608: my $show=$#randomlist;
1609: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1610: $showarg--;
1611: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1612: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1613: my @currlist;
1614: my $part = $Apache::inputtags::part;
1615: if ($part ne '') {
1616: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1617: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1618: if (!(grep(/^\Q$part\E$/,@currlist))) {
1619: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1620: }
1621: } else {
1622: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1623: }
1624: }
1625: }
1.303 albertel 1626: for(0 .. $show) {
1627: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1628: }
1629: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1630: }
1631: } elsif ($target eq 'edit' ) {
1632: $result .=&Apache::edit::tag_start($target,$token);
1633: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1634: $token,5);
1635: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1636: } elsif ($target eq 'modified' ) {
1637: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1638: $safeeval,'show');
1639: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1640: }
1641: return $result;
1.7 tsai 1642: }
1643:
1644: sub shuffle {
1645: my $a=shift;
1646: my $i;
1.303 albertel 1647: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1648: &Apache::response::pushrandomnumber();
1.159 albertel 1649: for($i=@$a;--$i;) {
1650: my $j=int(&Math::Random::random_uniform() * ($i+1));
1651: next if $i == $j;
1652: @$a[$i,$j] = @$a[$j,$i];
1653: }
1.251 albertel 1654: &Apache::response::poprandomnumber();
1.7 tsai 1655: }
1.6 tsai 1656: }
1657:
1658: sub end_randomlist {
1.159 albertel 1659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1660: my $result;
1661: if ($target eq 'edit' ) {
1662: $result=&Apache::edit::tag_end($target,$token,
1663: 'End Randomly Parsed Block');
1664: }
1665: return $result;
1.6 tsai 1666: }
1667:
1.283 albertel 1668: sub ordered_show_check {
1669: my $last_part=$Apache::inputtags::partlist[-2];
1670: my $in_order=
1671: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1672: my $in_order_show=1;
1673: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1674: $in_order_show=&Apache::response::check_status($last_part);
1675: }
1676: return $in_order_show;
1677: }
1678:
1.11 albertel 1679: sub start_part {
1.326 albertel 1680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1681: if (!$Apache::lonxml::metamode) {
1682: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1683: # duedates.
1684: }
1.159 albertel 1685: my $result='';
1.386 albertel 1686: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1687: $Apache::inputtags::part=$id;
1.177 albertel 1688: push(@Apache::inputtags::partlist,$id);
1689: @Apache::inputtags::response=();
1.159 albertel 1690: @Apache::inputtags::previous=();
1691: @Apache::inputtags::previous_version=();
1.405 albertel 1692: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1693: &Apache::response::reset_params();
1694:
1.159 albertel 1695: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1696: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1697: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1698: my $in_order_show=&ordered_show_check();
1.214 albertel 1699: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1700: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1701: &Apache::run::run($expression,$safeeval);
1.159 albertel 1702:
1703: if ($target eq 'meta') {
1.224 www 1704: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1705: return &Apache::response::mandatory_part_meta.
1706: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1707: } elsif ($target eq 'web' || $target eq 'grade' ||
1708: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1709: if ($hidden || !$in_order_show) {
1.326 albertel 1710: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1711: } else {
1712: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1713: push (@Apache::inputtags::status,$status);
1714: my $expression='$external::datestatus="'.$status.'";';
1715: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1716: &Apache::run::run($expression,$safeeval);
1.284 albertel 1717: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1718: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1719: }
1.216 albertel 1720: if (( $status eq 'CLOSED' ) ||
1721: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1722: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1723: ( $status eq 'BANNED') ||
1724: ( $status eq 'UNAVAILABLE') ||
1725: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1726: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1727: $style);
1.159 albertel 1728: if ( $target eq "web" ) {
1.211 albertel 1729: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1730: } elsif ( $target eq 'tex' ) {
1.284 albertel 1731: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1732: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1733: } else {
1.211 albertel 1734: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1735: }
1.159 albertel 1736: }
1737: } else {
1738: if ($target eq 'tex') {
1.284 albertel 1739: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1740: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1741: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1742: } else {
1743: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1744: }
1.195 sakharuk 1745: }
1.159 albertel 1746: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1747: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1748: my @allkeys = split /,/,$allkeys;
1749: my $allow_print_points = 0;
1750: foreach my $partial_key (@allkeys) {
1.230 albertel 1751: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1752: if ($1 ne '0') {$allow_print_points=1;}
1753: }
1754: }
1.275 albertel 1755: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1756: if (defined($maxtries) && $maxtries < 0) {
1757: $allow_print_points=0;
1758: }
1.302 albertel 1759: if (lc($env{'course.'.$env{'request.course.id'}.
1760: '.disableexampointprint'}) eq 'yes') {
1761: $allow_print_points=0;
1762: }
1.222 sakharuk 1763: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1764: } elsif ($target eq 'web') {
1.356 www 1765: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1766: }
1767: }
1768: }
1769: } elsif ($target eq 'edit') {
1770: $result.=&Apache::edit::tag_start($target,$token);
1771: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1772: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1773: ' '.
1774: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1775: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1776: } elsif ($target eq 'modified') {
1777: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1778: $safeeval,'id','display');
1.159 albertel 1779: if ($constructtag) {
1.225 albertel 1780: #limiting ids to only letters numbers, and space
1.224 www 1781: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1782: $result = &Apache::edit::rebuild_tag($token);
1783: }
1784: }
1785: return $result;
1.11 albertel 1786: }
1787:
1788: sub end_part {
1.159 albertel 1789: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1790: &Apache::lonxml::debug("in end_part $target ");
1791: my $status=$Apache::inputtags::status['-1'];
1792: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1793: my $in_order_show=&ordered_show_check();
1.321 albertel 1794: my $result;
1795: if (!$Apache::lonxml::metamode) {
1796: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1797: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1798: }
1.312 albertel 1799: if ($target eq 'grade') {
1.249 albertel 1800: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1801: !$hidden && $in_order_show) {
1.311 foxr 1802: $result.=&Apache::inputtags::grade;
1.249 albertel 1803: } else {
1804: # move any submission data to .hidden
1805: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1806: }
1.283 albertel 1807: } elsif (($target eq 'web' || $target eq 'tex') &&
1808: !$hidden && $in_order_show) {
1.159 albertel 1809: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1810: $target);
1.212 albertel 1811: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1812: $gradestatus='';
1813: }
1.311 foxr 1814: $result.=$gradestatus;
1.265 sakharuk 1815: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1816: } elsif ($target eq 'edit') {
1.311 foxr 1817: $result.=&Apache::edit::end_table();
1.322 albertel 1818: } elsif ($target eq 'modified') {
1819: $result .= $token->[2];
1.159 albertel 1820: }
1821: pop @Apache::inputtags::status;
1822: $Apache::inputtags::part='';
1.295 albertel 1823: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1824: return $result;
1.11 albertel 1825: }
1.1 albertel 1826:
1.25 albertel 1827: sub start_preduedate {
1.326 albertel 1828: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1829: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1830: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1831: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1832: if (!$Apache::lonhomework::scantronmode &&
1833: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1834: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1835: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1836: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1837: }
1.24 albertel 1838: }
1.159 albertel 1839: return '';
1.24 albertel 1840: }
1841:
1.25 albertel 1842: sub end_preduedate {
1.159 albertel 1843: return '';
1.24 albertel 1844: }
1845:
1.369 foxr 1846: # In all the modes where <postanswerdate> text is
1847: # displayable, all we do is eat up the text between the start/stop
1848: # tags if the conditions are not right to display it.
1.25 albertel 1849: sub start_postanswerdate {
1.326 albertel 1850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1851: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1852: &Apache::lonnet::allowed('pav',
1853: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1854: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1855: $target eq 'tex' ) {
1.300 albertel 1856: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1857: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1858: (($target eq 'tex') && !$pav)) {
1.326 albertel 1859: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1860: }
1861: }
1862: return '';
1.24 albertel 1863: }
1864:
1.25 albertel 1865: sub end_postanswerdate {
1.159 albertel 1866: return '';
1.24 albertel 1867: }
1868:
1.25 albertel 1869: sub start_notsolved {
1.326 albertel 1870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1871: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1872: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1873: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1874: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1875: if ($gradestatus =~ /^correct/ &&
1876: &Apache::response::show_answer()) {
1.159 albertel 1877: &Apache::lonxml::debug("skipping");
1.326 albertel 1878: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1879: }
1.24 albertel 1880: }
1.159 albertel 1881: return '';
1.24 albertel 1882: }
1883:
1.25 albertel 1884: sub end_notsolved {
1.159 albertel 1885: return '';
1.24 albertel 1886: }
1887:
1888: sub start_solved {
1.326 albertel 1889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1890: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1891: $target eq 'tex') {
1892: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1893: if ($gradestatus !~ /^correct/ ||
1894: !&Apache::response::show_answer()) {
1.326 albertel 1895: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1896: }
1.24 albertel 1897: }
1.159 albertel 1898: return '';
1.24 albertel 1899: }
1900:
1901: sub end_solved {
1.248 albertel 1902: return '';
1903: }
1904:
1905: sub start_problemtype {
1.326 albertel 1906: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1907: my $result;
1.339 albertel 1908: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1909: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1910: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1911: if (!defined($mode)) { $mode='show'; }
1912: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1913: my $found=0;
1914: foreach my $type (split(',',$for)) {
1915: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1916: }
1917: if ($mode eq 'show' && !$found) {
1.326 albertel 1918: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1919: }
1920: if ($mode eq 'hide' && $found) {
1.326 albertel 1921: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1922: }
1923: } elsif ($target eq 'edit') {
1924: $result .=&Apache::edit::tag_start($target,$token);
1925: $result.=&Apache::edit::select_arg('Mode:','mode',
1926: [['show','Show'],
1927: ['hide','Hide']]
1928: ,$token);
1929: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1930: [ ['exam','Exam/Quiz Problem'],
1931: ['survey','Survey'],
1.428 raeburn 1932: ['problem','Homework Problem'],
1933: ['practice','Practice Problem'] ]
1.248 albertel 1934: ,$token);
1935: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1936: } elsif ($target eq 'modified') {
1937: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1938: $safeeval,'mode','for');
1939: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1940: }
1941: return $result;
1942: }
1943:
1944: sub end_problemtype {
1.159 albertel 1945: return '';
1.24 albertel 1946: }
1.34 albertel 1947:
1948: sub start_startouttext {
1.159 albertel 1949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1950: my @result=(''.'');
1951: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1952:
1953: my $nesting =
1954: &Apache::lonxml::set_state('outtext',
1955: &Apache::lonxml::get_state('outtext')+1);
1956: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1957: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1958: }
1.159 albertel 1959: return (@result);
1.34 albertel 1960: }
1.159 albertel 1961:
1.34 albertel 1962: sub end_startouttext {
1.326 albertel 1963: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1964: my $result='';
1965: my $text='';
1966: if ($target eq 'edit') {
1.424 foxr 1967: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1968: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1969: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1970: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1971: .&Apache::edit::deletelist($target,$token)
1972: .'</span></td>';
1.425 raeburn 1973: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1974: $result .= '<td align="left">'
1975: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1976: .'</td>'
1977: .'<td>'
1978: .&Apache::edit::insertlist($target,$token)
1979: .'</td>';
1980: }
1.425 raeburn 1981: $result.='<td align="right" valign="top">' .
1.434 foxr 1982: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1983: &Apache::edit::end_row().
1.362 albertel 1984: &Apache::edit::start_spanning_row()."\n".
1.255 www 1985: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1986: }
1987: if ($target eq 'modified') {
1.219 albertel 1988: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1989: }
1990: if ($target eq 'tex') {
1991: $result .= '\noindent ';
1992: }
1993: return $result;
1.34 albertel 1994: }
1.159 albertel 1995:
1.34 albertel 1996: sub start_endouttext {
1.159 albertel 1997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1998: my $result='';
1999: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2000: if ($target eq "modified") {
2001: $result='<endouttext />'.
1.377 albertel 2002: &Apache::edit::handle_insertafter('startouttext');
2003: }
1.404 albertel 2004:
2005: my $nesting =
2006: &Apache::lonxml::set_state('outtext',
2007: &Apache::lonxml::get_state('outtext')-1);
2008: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2009: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2010: &Apache::lonxml::set_state('outtext', 0);
2011: }
1.159 albertel 2012: return $result;
1.34 albertel 2013: }
1.159 albertel 2014:
1.34 albertel 2015: sub end_endouttext {
1.159 albertel 2016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2017: my @result=('','');
2018: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2019: return (@result);
1.34 albertel 2020: }
1.159 albertel 2021:
1.45 albertel 2022: sub delete_startouttext {
1.326 albertel 2023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2024: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2025: my $text=$$parser['-1']->get_text("/endouttext");
2026: my $ntoken=$$parser['-1']->get_token();
2027: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2028: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2029: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2030: # they did the last time round
2031: &Apache::lonxml::increasedepth($ntoken);
2032: &Apache::lonxml::decreasedepth($ntoken);
2033: return 1;
1.193 www 2034: }
2035:
2036: sub start_simpleeditbutton {
2037: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2038: my $result='';
1.284 albertel 2039: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2040: ($target eq 'web') &&
1.330 albertel 2041: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2042: my $url=$env{'request.noversionuri'};
1.193 www 2043: $url=~s/\?.*$//;
1.367 albertel 2044: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2045: # Warning make more sense and is more important on edit screen
2046: # $result='<p class="LC_warning">'
2047: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2048: # .&Apache::loncommon::help_open_topic('Caching')
2049: # .'</p>';
2050: $result.=&Apache::lontemplate::start_functionslist()
2051: .&Apache::lontemplate::item_functionslist(
2052: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a>')
2053: .&Apache::lontemplate::end_functionslist();
2054:
1.193 www 2055: }
2056: return $result;
2057: }
2058:
2059: sub end_simpleeditbutton {
2060: return '';
1.45 albertel 2061: }
1.34 albertel 2062:
1.428 raeburn 2063: sub practice_problem_header {
2064: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2065: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2066: '</span>';
2067: }
2068:
1.1 albertel 2069: 1;
2070: __END__
1.435 jms 2071:
2072: =pod
2073:
2074: =back
2075:
2076: =cut
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