Annotation of loncom/homework/structuretags.pm, revision 1.445
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.445 ! bisitz 4: # $Id: structuretags.pm,v 1.444 2009/05/11 16:51:22 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: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.344 albertel 206: if (defined($found{'body'})) {
207: $body_args{'skip_phases'}{'body'}=1;
208: } elsif (!defined($found{'body'})
209: && $env{'request.state'} eq 'construct') {
1.343 albertel 210: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 211: if ($env{'environment.remote'} ne 'off') {
212: $body_args{'only_body'} = 1;
213: }
1.297 albertel 214: }
1.272 albertel 215: } elsif (!defined($found{'body'})) {
1.343 albertel 216: my %add_entries;
1.159 albertel 217: my $background=&Apache::lonxml::get_param('background',$parstack,
218: $safeeval);
1.343 albertel 219: if ($background ne '' ) {
220: $add_entries{'background'} = $background;
221: }
1.344 albertel 222:
1.290 albertel 223: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
224: $safeeval);
1.344 albertel 225: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
226:
227: $body_args{'bgcolor'} = $bgcolor;
1.445 ! bisitz 228: # $body_args{'no_title'} = 1;
1.344 albertel 229: $body_args{'force_register'} = 1;
230: $body_args{'add_entries'} = \%add_entries;
1.391 albertel 231: if ($env{'environment.remote'} eq 'off'
232: && $env{'request.state'} eq 'construct') {
233: $body_args{'only_body'} = 1;
234: }
1.344 albertel 235: }
1.365 albertel 236: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 237: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
238: \%body_args);
239:
240: if (!defined($found{'body'})
241: && $env{'request.state'} ne 'construct'
242: && ($target eq 'web' || $target eq 'webgrade')) {
243:
1.367 albertel 244: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 245: if ($symb eq '' && !$publicuser) {
246: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
247: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
248: $page_start .= $help;
1.159 albertel 249: }
1.344 albertel 250: }
251:
1.409 albertel 252: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 253: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 254: }
1.344 albertel 255:
1.159 albertel 256: my $form_tag_start;
257: if (!defined($found{'form'})) {
1.337 albertel 258: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 259: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 260: $form_tag_start.=$uri.'" ';
261: if ($target eq 'edit') {
262: $form_tag_start.=&Apache::edit::form_change_detection();
263: }
1.368 albertel 264: $form_tag_start.='>'."\n";
1.355 albertel 265:
266: my $symb=&Apache::lonnet::symbread();
267: if ($symb =~ /\S/) {
268: $symb=
269: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
270: $form_tag_start.=
1.368 albertel 271: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 272: }
1.159 albertel 273: }
1.343 albertel 274: return ($page_start,$form_tag_start);
1.105 albertel 275: }
276:
1.141 matthew 277: #use Time::HiRes();
1.105 albertel 278: sub get_resource_name {
1.159 albertel 279: my ($parstack,$safeeval)=@_;
1.388 foxr 280: my $name;
1.204 albertel 281: if (defined($Apache::lonhomework::name)) {
1.388 foxr 282: $name = $Apache::lonhomework::name;
283: } else {
284: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 285: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 286: if ($name eq '') {
287: $name=&Apache::lonnet::EXT('resource.title');
288: if ($name eq 'con_lost') { $name = ''; }
289: }
290: if ($name!~/\S+/) {
291: $name=$env{'request.uri'};
292: $name=~s-.*/([^/]+)$-$1-;
293: }
294: # The name has had html tags escaped:
295:
296: $name=~s/</</gs;
297: $name=~s/>/>/gs;
298:
299: $Apache::lonhomework::name=$name;
1.204 albertel 300: }
1.159 albertel 301: return $name;
1.105 albertel 302: }
303:
304: sub setup_rndseed {
1.159 albertel 305: my ($safeeval)=@_;
306: my $rndseed;
1.367 albertel 307: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 308: if ($env{'request.state'} eq "construct"
309: || $symb eq ''
310: || $Apache::lonhomework::type eq 'practice'
311: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 312: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 313: ['rndseed']);
1.284 albertel 314: $rndseed=$env{'form.rndseed'};
1.159 albertel 315: if (!$rndseed) {
1.162 albertel 316: $rndseed=$Apache::lonhomework::history{'rndseed'};
317: if (!$rndseed) {
318: $rndseed=time;
319: }
1.284 albertel 320: $env{'form.rndseed'}=$rndseed;
1.162 albertel 321: }
1.374 albertel 322: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
323: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 324: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 325: srand(time);
326: $rndseed=int(rand(2100000000));
1.284 albertel 327: $env{'form.rndseed'}=$rndseed;
328: delete($env{'form.resetdata'});
329: delete($env{'form.newrandomization'});
1.159 albertel 330: }
1.187 albertel 331: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 332: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 333: }
1.247 albertel 334: if ($Apache::lonhomework::history{'resource.CODE'}) {
335: $rndseed=&Apache::lonnet::rndseed();
336: }
1.221 albertel 337: if ($safeeval) {
338: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 339: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 340: }
1.159 albertel 341: }
342: return $rndseed;
1.105 albertel 343: }
344:
1.268 albertel 345: sub remember_problem_state {
346: return '
1.284 albertel 347: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
348: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
349: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 350: }
351:
1.423 www 352: sub problem_edit_buttons {
353: return '
1.408 albertel 354: <div class="LC_edit_problem_discards">
1.416 raeburn 355: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 356: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 357: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 358: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 359: </div>
360: <div class="LC_edit_problem_saves">
1.416 raeburn 361: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
362: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 363: </div>';
364: }
365:
366: sub problem_edit_header {
367: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
368: &Apache::structuretags::remember_problem_state().'
369: <div class="LC_edit_problem_header">
370: <div class="LC_edit_problem_header_title">
371: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
372: </div>'.
373: &problem_edit_buttons().'
1.408 albertel 374: <hr class="LC_edit_problem_divide" />
1.409 albertel 375: '.&Apache::lonxml::message_location().'
1.408 albertel 376: </div>
377: '.
1.282 albertel 378: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 379: }
380:
381: sub problem_edit_footer {
1.412 albertel 382: return '</td></tr></table><br />
383: <div class="LC_edit_problem_footer">
1.423 www 384: <hr class="LC_edit_problem_divide" />'.
385: &problem_edit_buttons().'
1.412 albertel 386: <hr class="LC_edit_problem_divide" />
387: </div>
388: '.
389:
1.348 albertel 390: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 391: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 392: }
393:
1.235 albertel 394: sub option {
395: my ($value,$name) = @_;
396: my $result ="<option value='".$value."' ";
1.284 albertel 397: if ($env{'form.'.$name} eq $value) {
1.235 albertel 398: $result.=" selected='on' ";
399: }
400: $result.='>';
401: return $result;
402: }
403:
1.105 albertel 404: sub problem_web_to_edit_header {
1.159 albertel 405: my ($rndseed)=@_;
1.406 albertel 406: my $result .= '<div class="LC_edit_problem_header">';
407:
408: if (!$Apache::lonhomework::parsing_a_task) {
409: $result .=
410: '<div class="LC_edit_problem_header_title">'.
411: &mt('Problem Testing').
412: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
413: '</div>';
414: } else {
415: $result .=
416: '<div class="LC_edit_problem_header_title">'.
417: &mt('Task Testing').
418: '</div>';
419: }
420:
1.315 albertel 421: my $show_all_foils_text =
422: ($Apache::lonhomework::parsing_a_task) ?
423: &mt(' Show All Instances')
424: : &mt(' Show All Foils');
425:
1.440 bisitz 426: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils"';
427: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.406 albertel 428: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
429:
430:
1.384 albertel 431:
1.406 albertel 432: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 433: if (!$Apache::lonhomework::parsing_a_task) {
434: $result.="
1.406 albertel 435: <div class='LC_edit_problem_header_row1'>
436: <span class=\"LC_nobreak\">
1.405 albertel 437: ".&mt("Problem Status:")."
1.235 albertel 438: <select name='problemstate'>
1.270 albertel 439: <option value=''></option>
1.235 albertel 440: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
441: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
442: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
443: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
444: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
445: </select>
1.406 albertel 446: </span>
447: <span class=\"LC_nobreak\">
1.405 albertel 448: ".&mt("Problem Type:")."
1.235 albertel 449: <select name='problemtype'>
1.270 albertel 450: <option value=''></option>
1.242 albertel 451: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 452: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 453: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 454: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 455: </select>
1.406 albertel 456: </span>
457: $show_all
458: </div>
459: <div class='LC_edit_problem_header_row2'>
460: <span class=\"LC_nobreak\">
1.405 albertel 461: ".&mt("Feedback Mode:")."
1.235 albertel 462: <select name='problemstatus'>
463: <option value=''></option>
1.242 albertel 464: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 465: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
466: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 467: </select>
1.406 albertel 468: </span>
469: ";
470:
1.376 albertel 471: } elsif ($Apache::lonhomework::parsing_a_task) {
472: $result.="
1.406 albertel 473: <div class='LC_edit_problem_header_row1'>
474: <span class=\"LC_nobreak\">
1.405 albertel 475: ".&mt("Problem Status:")."
1.376 albertel 476: <select name='problemstate'>
477: <option value=''></option>
478: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
479: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
480: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
481: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
482: </select>
1.406 albertel 483: </span>
484: $show_all
485: ";
486: }
487: $result.='
488: <span class="LC_nobreak">
489: '.&mt('Apply style file: ').'
490: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
491: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
492: </span>
1.422 www 493: </div>
494: <div class="LC_edit_problem_header_row1">'.
495: &Apache::lonxml::renderingoptions().'
1.406 albertel 496: </div>
497: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
498: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
499: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
500: </div>
501: <hr class="LC_edit_problem_divide" />
502: <div class="LC_edit_problem_header_randomize_row">
503: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
504: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
505: <input type="text" name="rndseed" size="10" value="'.
506: $rndseed.'"
507: onchange="javascript:document.lonhomework.changerandseed.click()" />';
508:
509: if (!$Apache::lonhomework::parsing_a_task) {
510: my $numtoanalyze=$env{'form.numtoanalyze'};
511: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 512: $result .= '<span class="LC_nobreak">'.
513: &mt('[_1] for [_2] versions.',
1.416 raeburn 514: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 515: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
516: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 517: $numtoanalyze.'" size="5" />').
518: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
519: '</span>';
520:
1.313 albertel 521: }
1.406 albertel 522:
523: $result.='
524: </div>
1.408 albertel 525: <div class="LC_edit_problem_header_edit_row">';
1.416 raeburn 526: $result.='<input type="hidden" name="problemmode" value="view" />';
527: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
528: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
529: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
530: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 531: $result.='
532: </div>
1.409 albertel 533: '.&Apache::lonxml::message_location().'
1.406 albertel 534: </div>';
1.159 albertel 535: return $result;
1.48 albertel 536: }
537:
1.65 albertel 538: sub initialize_storage {
1.357 albertel 539: my ($given_symb) = @_;
1.353 albertel 540: undef(%Apache::lonhomework::results);
541: undef(%Apache::lonhomework::history);
1.357 albertel 542: my ($symb,$courseid,$domain,$name) =
1.367 albertel 543: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 544:
545: # anonymous users (CODEd exams) have no data
546: if ($name eq 'anonymous'
547: && !defined($domain)) {
548: return;
549: }
550:
1.333 albertel 551: if ($env{'request.state'} eq 'construct'
552: || $symb eq ''
553: || $Apache::lonhomework::type eq 'practice') {
554:
555: my $namespace = $symb || $env{'request.uri'};
556: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 557: ($env{'form.resetdata'} eq &mt('New Problem Variation')
558: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 559: $env{'form.newrandomization'} eq &mt('New Randomization')) {
560: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
561: &Apache::lonxml::debug("Attempt reset");
562: }
1.159 albertel 563: %Apache::lonhomework::history=
1.333 albertel 564: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 565: my ($temp)=keys %Apache::lonhomework::history ;
566: &Apache::lonxml::debug("Return message of $temp");
567: } else {
568: %Apache::lonhomework::history=
569: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
570: }
1.353 albertel 571:
1.159 albertel 572: #ignore error conditions
1.67 albertel 573: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 574: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 575: }
576:
1.435 jms 577: =pod
578:
579: =item finalize_storage()
580:
581: Stores away the result has to a student's environment
582: checks form.grade_ for specific values, other wises stores
583: to the running users environment
584: Will increment totals for attempts, students, and corrects
585: if running user has student role.
586:
587: =cut
588:
589:
1.65 albertel 590: sub finalize_storage {
1.357 albertel 591: my ($given_symb) = @_;
1.159 albertel 592: my $result;
1.289 albertel 593: if (%Apache::lonhomework::results) {
1.323 albertel 594: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
595: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 596: my ($symb,$courseid,$domain,$name) =
1.367 albertel 597: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 598: if ($env{'request.state'} eq 'construct'
599: || $symb eq ''
600: || $Apache::lonhomework::type eq 'practice') {
601: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 602: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 603: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 604: $namespace,'',$domain,$name);
1.159 albertel 605: &Apache::lonxml::debug('Construct Store return message:'.$result);
606: } else {
607: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
608: $symb,$courseid,$domain,$name);
609: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 610: if ($env{'request.role'} =~/^st/) {
611: &store_aggregates($symb,$courseid);
612: }
1.159 albertel 613: }
1.323 albertel 614: } else {
615: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 616: }
1.159 albertel 617: return $result;
1.65 albertel 618: }
619:
1.435 jms 620: =pod
621:
622: item store_aggregates()
623:
624: Sends hash of values to be incremented in nohist_resourcetracker.db
625: for the course. Increments total number of attempts, unique students
626: and corrects for each part for an instance of a problem, as appropriate.
627:
628: =cut
629:
1.285 raeburn 630: sub store_aggregates {
631: my ($symb,$courseid) = @_;
1.286 albertel 632: my %aggregate;
633: my @parts;
1.288 albertel 634: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
635: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 636: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 637: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 638: push(@parts, $1);
1.285 raeburn 639: }
640: }
1.286 albertel 641: foreach my $part (@parts) {
642: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
643: eq 'APPROX_ANS' ||
644: $Apache::lonhomework::results{'resource.'.$part.'.award'}
645: eq 'EXACT_ANS') {
1.287 albertel 646: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 647: }
1.286 albertel 648: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 649: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 650: } else {
1.293 albertel 651: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 652: if ($last_reset) {
1.293 albertel 653: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 654: $aggregate{$symb."\0".$part."\0users"} = 1;
655: }
656: }
1.285 raeburn 657: }
1.287 albertel 658: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 659: }
1.292 raeburn 660: if (keys (%aggregate) > 0) {
1.289 albertel 661: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 662: $cdomain,$cname);
663: }
664: }
1.289 albertel 665:
1.65 albertel 666: sub checkout_msg {
1.211 albertel 667: my %lt=&Apache::lonlocal::texthash(
668: 'resource'=>'The resource needs to be checked out',
669: '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.',
670: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
671: 'checkout'=>'Check out Exam for Viewing',
672: 'checkout?'=>'Check out Exam?');
1.352 albertel 673: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 674: return (<<ENDCHECKOUT);
1.211 albertel 675: <h2>$lt{'resource'}</h2>
676: <p>$lt{'id_expln'}</p>
677: <font color="red">
678: <p>$lt{'warning'}</p>
1.91 albertel 679: </font>
1.444 bisitz 680: <form name="checkout" method="post" action="$uri">
1.91 albertel 681: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 682: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 683: </form>
684: ENDCHECKOUT
685: }
686:
1.252 albertel 687: sub firstaccess_msg {
1.253 albertel 688: my ($time,$symb)=@_;
1.414 albertel 689: my $result;
690: my @interval=&Apache::lonnet::EXT("resource.0.interval");
691: if ($interval[1] eq 'map') {
692: my ($map)=&Apache::lonnet::decode_symb($symb);
693: my $foldertitle=&Apache::lonnet::gettitle($map);
694:
695: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 696: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
697: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
698: ,$foldertitle,$time)."</h2>";
1.414 albertel 699: } elsif ($interval[1] eq 'course') {
700: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 701: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
702: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
703: ,$course,$time)."</h2>";
1.414 albertel 704: } else {
705: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 706: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
707: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
708: ,$title,$time)."</h2>";
1.414 albertel 709: }
1.352 albertel 710: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 711: my $buttontext = &mt('Show Resource');
712: my $timertext = &mt('Start Timer?');
1.414 albertel 713: $result .= (<<ENDCHECKOUT);
1.444 bisitz 714: <form name="markaccess" method="post" action="$uri">
1.252 albertel 715: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 716: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 717: </form>
718: ENDCHECKOUT
1.414 albertel 719: return $result;
1.252 albertel 720: }
721:
1.204 albertel 722: sub init_problem_globals {
723: my ($type)=@_;
724: #initialize globals
1.308 foxr 725: # For problems, we start out in part 0 (outside a <part> tag).
726: # and part 0 is used to describe the main body of the <problem>
727: #
1.204 albertel 728: if ($type eq 'problem') {
729: $Apache::inputtags::part='0';
730: @Apache::inputtags::partlist=('0');
1.405 albertel 731: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 732: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 733:
1.266 albertel 734: } elsif ($type eq 'library') {
1.204 albertel 735: $Apache::inputtags::part='';
736: @Apache::inputtags::partlist=();
1.405 albertel 737: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 738: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 739:
1.304 albertel 740: } elsif ($type eq 'Task') {
741: $Apache::inputtags::part='0';
742: @Apache::inputtags::partlist=('0');
1.405 albertel 743: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 744: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 745: }
746: @Apache::inputtags::responselist = ();
747: @Apache::inputtags::importlist = ();
748: @Apache::inputtags::previous=();
749: @Apache::inputtags::previous_version=();
750: $Apache::structuretags::printanswer='No';
751: @Apache::structuretags::whileconds=();
752: @Apache::structuretags::whilebody=();
753: @Apache::structuretags::whileline=();
754: $Apache::lonhomework::scantronmode=0;
755: undef($Apache::lonhomework::name);
1.358 albertel 756: undef($Apache::lonhomework::default_type);
757: undef($Apache::lonhomework::type);
1.204 albertel 758: }
759:
760: sub reset_problem_globals {
761: my ($type)=@_;
762: undef(%Apache::lonhomework::history);
763: undef(%Apache::lonhomework::results);
764: undef($Apache::inputtags::part);
1.208 albertel 765: #don't undef this, lonhomework.pm takes care of this, we use this to
766: #detect if we try to do 2 problems in one file
767: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 768: undef($Apache::lonhomework::name);
1.358 albertel 769: undef($Apache::lonhomework::default_type);
770: undef($Apache::lonhomework::type);
771: undef($Apache::lonhomework::scantronmode);
772: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 773: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 774: }
775:
1.241 albertel 776: sub set_problem_state {
1.240 albertel 777: my ($part)=@_;
1.284 albertel 778: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 779: $Apache::lonhomework::history{"resource.$part.solved"}=
780: 'correct_by_student';
781: }
782: }
783:
1.241 albertel 784: sub get_problem_status {
785: my ($part)=@_;
1.267 albertel 786: my $problem_status;
1.284 albertel 787: if ($env{'request.state'} eq 'construct' &&
788: defined($env{'form.problemstatus'})) {
789: $problem_status=$env{'form.problemstatus'};
1.267 albertel 790: } else {
791: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
792: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 793: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 794: }
795: return $problem_status;
796: }
797:
1.9 albertel 798: sub start_problem {
1.326 albertel 799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 800:
1.311 foxr 801: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 802: if (!$Apache::lonxml::metamode) {
803: &Apache::lonxml::startredirection();
804: }
1.311 foxr 805:
1.308 foxr 806: # Problems don't nest and we don't allow more than one <problem> in
807: # a .problem file.
808: #
1.184 albertel 809: if ( $Apache::inputtags::part ne '' ||
810: $Apache::lonhomework::parsing_a_problem) {
811: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 812: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 813: return '';
814: }
1.184 albertel 815:
816: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 817: &init_problem_globals('problem');
1.166 albertel 818:
1.284 albertel 819: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 820: $Apache::lonhomework::scantronmode=1;
821: }
1.161 albertel 822:
1.159 albertel 823: if ($target ne 'analyze') {
1.415 raeburn 824: my $type = &Apache::lonnet::EXT('resource.0.type');
825: $Apache::lonhomework::type=$type;
1.284 albertel 826: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 827: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 828: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 829: }
1.332 albertel 830: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 831: }
1.164 albertel 832: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 833: my $uri=$env{'request.uri'};
1.159 albertel 834: if ($uri=~/\.(\w+)$/) {
835: $Apache::lonhomework::type=$1;
836: &Apache::lonxml::debug("Using type of $1");
837: } else {
838: $Apache::lonhomework::type='problem';
839: &Apache::lonxml::debug("Using default type, problem, :$uri:");
840: }
1.87 albertel 841: }
1.301 albertel 842: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 843:
1.363 albertel 844: &initialize_storage();
1.389 albertel 845: if ($target ne 'analyze'
846: && $env{'request.state'} eq 'construct') {
847: &set_problem_state('0');
848: }
849:
1.366 albertel 850: if ($target eq 'web') {
851: &Apache::lonxml::debug(" grading history ");
852: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
853: }
1.363 albertel 854:
1.159 albertel 855: #added vars to the scripting enviroment
1.213 albertel 856: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 857: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 858: &Apache::run::run($expression,$safeeval);
1.159 albertel 859: my $status;
860: my $accessmsg;
861:
1.343 albertel 862: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 863: my ($result,$form_tag_start);
1.354 albertel 864: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
865: || $target eq 'edit') {
1.350 albertel 866: ($result,$form_tag_start) =
867: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
868: $name);
869: }
870:
1.284 albertel 871: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 872:
873: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
874: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
875: $target eq 'tex') {
876: #handle exam checkout
877: if ($Apache::lonhomework::type eq 'exam') {
878: my $token=
879: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 880: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 881: $token=&Apache::lonxml::maketoken();
882: $Apache::lonhomework::history{"resource.0.outtoken"}=
883: $token;
884: }
1.343 albertel 885: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 886: }
1.284 albertel 887: if ($env{'form.markaccess'}) {
1.414 albertel 888: my @interval=&Apache::lonnet::EXT("resource.0.interval");
889: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 890: }
1.159 albertel 891: #handle rand seed in construction space
892: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 893: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 894: if ($env{'request.state'} ne "construct" &&
895: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 896: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
897: $rndseed.'" />'.
898: '<input type="submit" name="resetdata"
1.334 albertel 899: value="'.&mt('New Problem Variation').'" />';
900: if (exists($env{'form.username'})) {
901: $form_tag_start.=
1.164 albertel 902: '<input type="hidden" name="username"
1.284 albertel 903: value="'.$env{'form.username'}.'" />';
1.334 albertel 904: }
1.333 albertel 905: if ($env{'request.role.adv'}) {
1.267 albertel 906: $form_tag_start.=
1.440 bisitz 907: ' <label><input type="checkbox" name="showallfoils"';
1.284 albertel 908: if (defined($env{'form.showallfoils'})) {
1.440 bisitz 909: $form_tag_start.=' checked="checked"';
1.267 albertel 910: }
1.300 albertel 911: $form_tag_start.= ' />'.&mt(' Show All Foils').
912: '</label>';
1.267 albertel 913: }
1.417 www 914: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 915: $form_tag_start.=&practice_problem_header();
1.417 www 916: }
1.267 albertel 917: $form_tag_start.='<hr />';
1.162 albertel 918: }
1.324 albertel 919:
920: ($status,$accessmsg,my $slot_name,my $slot) =
921: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 922: push (@Apache::inputtags::status,$status);
1.324 albertel 923:
1.159 albertel 924: my $expression='$external::datestatus="'.$status.'";';
925: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
926: &Apache::run::run($expression,$safeeval);
927: &Apache::lonxml::debug("Got $status");
1.324 albertel 928:
1.159 albertel 929: if (( $status eq 'CLOSED' ) ||
930: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 931: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 932: ( $status eq 'BANNED') ||
1.216 albertel 933: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 934: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 935: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 936: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
937: $style);
1.159 albertel 938: if ( $target eq "web" ) {
1.343 albertel 939: my $msg;
1.159 albertel 940: if ($status eq 'UNAVAILABLE') {
1.245 albertel 941: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 942: } elsif ($status eq 'NOT_IN_A_SLOT') {
943: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 944: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 945: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 946: }
1.216 albertel 947: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 948: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 949: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 950: $msg.=&checkout_msg();
1.252 albertel 951: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 952: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 953: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 954: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 955: }
956: $result.=$msg.'<br />';
957: } elsif ($target eq 'tex') {
1.332 albertel 958: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
959: : '\begin{minipage}{\textwidth}';
1.443 foxr 960: $result.='\noindent \vskip 1 mm '.
1.332 albertel 961: $startminipage.'\vskip 0 mm';
1.159 albertel 962: if ($status eq 'UNAVAILABLE') {
1.211 albertel 963: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 964: } else {
1.211 albertel 965: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 966: }
967: }
1.324 albertel 968: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 969: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
970: $style);
1.324 albertel 971: if ($target eq 'web') {
1.375 albertel 972: $result .=
973: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 974: } elsif ($target eq 'grade') {
975: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
976: 'problem');
977: }
1.159 albertel 978: } elsif ($target eq 'web') {
1.360 albertel 979: if ($status eq 'CAN_ANSWER'
980: && $slot_name ne ''
981: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
982: # unproctored slot access, self checkin
983: &Apache::bridgetask::check_in('problem',undef,undef,
984: $slot_name);
985: }
1.368 albertel 986: $result.="\n $form_tag_start \t".
1.227 albertel 987: '<input type="hidden" name="submitted" value="yes" />';
988: # create a page header and exit
1.284 albertel 989: if ($env{'request.state'} eq "construct") {
990: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 991: if ($Apache::lonhomework::type eq 'practice') {
992: $result.= '<input type="submit" name="resetdata" '.
993: 'value="'.&mt('New Problem Variation').'" />'.
994: &practice_problem_header().'<hr />';
995: }
1.227 albertel 996: }
997: # if we are viewing someone else preserve that info
1.284 albertel 998: if (defined $env{'form.grade_symb'}) {
1.227 albertel 999: foreach my $field ('symb','courseid','domain','username') {
1000: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1001: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1002: }
1003: }
1004: } elsif ($target eq 'tex') {
1.319 foxr 1005: $result .= 'INSERTTEXFRONTMATTERHERE';
1006:
1.99 sakharuk 1007: }
1.159 albertel 1008: } elsif ($target eq 'edit') {
1.343 albertel 1009: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1010: $Apache::lonxml::warnings_error_header=
1011: &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 1012: my $temp=&Apache::edit::insertlist($target,$token);
1013: $result.=$temp;
1014: } elsif ($target eq 'modified') {
1015: $result=$token->[4];
1016: } else {
1017: # page_start returned a starting result, delete it if we don't need it
1018: $result = '';
1.99 sakharuk 1019: }
1.159 albertel 1020: return $result;
1.9 albertel 1021: }
1022:
1023: sub end_problem {
1.159 albertel 1024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1025: my $result;
1.310 foxr 1026:
1.321 albertel 1027: if (!$Apache::lonxml::metamode) {
1028: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1029: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1030: }
1.319 foxr 1031:
1032: if ($target eq 'tex') {
1.321 albertel 1033: # Figure out the front matter and replace the
1034: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1035: # this in end_problem because whether or not we display due
1036: # dates depends on whether due dates have already been
1037: # displayed in the problem parts.
1038:
1.319 foxr 1039: my $frontmatter = '';
1040: my $startminipage = '';
1041: if (not $env{'form.problem_split'}=~/yes/) {
1042: $startminipage = '\begin{minipage}{\textwidth}';
1043: }
1044: my $id = $Apache::inputtags::part;
1045: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1046: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1047: my @packages = split /,/,$packages;
1048: my $allow_print_points = 0;
1049: foreach my $partial_key (@packages) {
1050: if ($partial_key=~m/^part_0$/) {
1051: $allow_print_points=1;
1052: }
1053: }
1054: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1055: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1056: if (lc($env{'course.'.$env{'request.course.id'}.
1057: '.disableexampointprint'}) eq 'yes') {
1058: $allow_print_points=0;
1059: }
1060: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1061: 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 1062: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1063: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1064:
1065: # Figure out what the due date is and if we need to print
1066: # it in the problem header. We have been logging the
1067: # last due date written to file.
1068:
1069: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1070: my $duedate = POSIX::strftime("%c",localtime($duetime));
1071: my $temp_file;
1072: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1073:
1074: # Figure out what the last printed due date is or set it
1075: # to the epoch if no duedates have been printed.
1076:
1077: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1078: if (-e $filename) {
1079: $temp_file = Apache::File->new($filename);
1080: my @due_file = <$temp_file>;
1081: $due_file_content = $due_file[$#due_file];
1082: chomp $due_file_content;
1083: }
1084:
1085: # We display the due date iff it is not the same as the last
1086: # duedate in problem header ($due_file_content), and
1087: # none of our parts displayed a duedate.
1088: #
1089: my $parts_with_displayduedate;
1090: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1091: $parts_with_displayduedate =
1092: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1093: } else {
1094: $parts_with_displayduedate = 0;
1095: }
1096: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1097: $temp_file = Apache::File->new('>'.$filename);
1098: print $temp_file "$duetime\n";
1099: if (not $env{'request.symb'} =~ m/\.page_/) {
1100: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1101: $frontmatter .= $begin_doc.
1102: '\textit{Due date: '.$duedate.'} '.$toc_line;
1103: } else {
1104: $frontmatter.= $begin_doc.$toc_line;
1105: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1106: }
1107: } else {
1.381 albertel 1108: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 1109: }
1110: } else {
1111: if (not $env{'request.symb'} =~ m/\.page_/) {
1112: $frontmatter .= $begin_doc.$toc_line;
1113: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1114: } else {
1.381 albertel 1115: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1116: }
1117: }
1118: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1119: }
1120:
1.159 albertel 1121: my $status=$Apache::inputtags::status['-1'];
1122: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1123: $target eq 'tex') {
1.249 albertel 1124: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1125: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1126: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1127: &Apache::inputtags::grade;
1.324 albertel 1128: } elsif ($status eq 'NEEDS_CHECKIN') {
1129: # no need to grade, and don't want to hide data
1.249 albertel 1130: } else {
1131: # move any submission data to .hidden
1132: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1133: }
1.159 albertel 1134: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1135: $Apache::inputtags::part eq '0' &&
1.252 albertel 1136: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1137: # if part is zero, no <part>s existed, so we need show the current
1138: # grading status
1139: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1140: $result.= $gradestatus;
1141: }
1142: if (
1.284 albertel 1143: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1144: ($target eq 'answer') || ($target eq 'tex')
1145: ) {
1.227 albertel 1146: if ($target ne 'tex' &&
1.284 albertel 1147: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1148: $result.="</form>";
1.348 albertel 1149: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1150: }
1151: if ($target eq 'web') {
1.346 albertel 1152: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1153: } elsif ($target eq 'tex') {
1.178 sakharuk 1154: my $endminipage = '';
1.284 albertel 1155: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1156: $endminipage = '\end{minipage}';
1157: }
1.284 albertel 1158: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1159: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1160: } else {
1.262 sakharuk 1161: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1162: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1163: $result .= $endminipage.'\end{document} ';
1164: } else {
1.382 albertel 1165: $result .= $endminipage;
1.262 sakharuk 1166: }
1.159 albertel 1167: }
1168: }
1169: }
1170: if ($target eq 'grade') {
1171: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1172: &finalize_storage();
1173: }
1.284 albertel 1174: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1175: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1176: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1177: # normally we get it from above, but in CSTR
1.172 albertel 1178: # we always show answer mode too.
1.159 albertel 1179: }
1180: } elsif ($target eq 'meta') {
1181: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1182: @Apache::inputtags::response=();
1.159 albertel 1183: $result=&Apache::response::mandatory_part_meta;
1184: }
1.215 albertel 1185: $result.=&Apache::response::meta_part_order();
1.258 albertel 1186: $result.=&Apache::response::meta_response_order();
1.159 albertel 1187: } elsif ($target eq 'edit') {
1188: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1189: $result .= &problem_edit_footer();
1.320 albertel 1190: } elsif ($target eq 'modified') {
1191: $result .= $token->[2];
1.159 albertel 1192: }
1.155 albertel 1193:
1.284 albertel 1194: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1195: &Apache::inputtags::check_for_duplicate_ids();
1196: }
1.204 albertel 1197:
1198: &reset_problem_globals('problem');
1.159 albertel 1199:
1200: return $result;
1.48 albertel 1201: }
1202:
1.108 albertel 1203:
1.48 albertel 1204: sub start_library {
1.159 albertel 1205: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1206: my ($result,$form_tag_start);
1.371 albertel 1207: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1208: &init_problem_globals('library');
1209: $Apache::lonhomework::type='problem';
1210: }
1.159 albertel 1211: if ($target eq 'edit') {
1.343 albertel 1212: ($result,$form_tag_start)=
1213: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1214: 'Edit');
1215: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1216: my $temp=&Apache::edit::insertlist($target,$token);
1217: $result.=$temp;
1218: } elsif ($target eq 'modified') {
1219: $result=$token->[4];
1.340 albertel 1220: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1221: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1222: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1223: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1224: ($result,$form_tag_start)=
1225: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1226: $name);
1.159 albertel 1227: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1228: $result.=" \n $form_tag_start".
1.159 albertel 1229: '<input type="hidden" name="submitted" value="yes" />';
1230: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1231: if ($Apache::lonhomework::type eq 'practice') {
1232: $result.= '<input type="submit" name="resetdata" '.
1233: 'value="'.&mt('New Problem Variation').'" />'.
1234: &practice_problem_header().'<hr />';
1235: }
1.159 albertel 1236: }
1237: return $result;
1.48 albertel 1238: }
1239:
1240: sub end_library {
1.159 albertel 1241: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1242: my $result='';
1243: if ($target eq 'edit') {
1244: $result=&problem_edit_footer();
1.371 albertel 1245: } elsif ($target eq 'web'
1246: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1247: && $env{'request.state'} eq "construct") {
1.349 albertel 1248: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1249: }
1.371 albertel 1250: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1251: &reset_problem_globals('library');
1252: }
1.159 albertel 1253: return $result;
1.197 www 1254: }
1255:
1256: sub start_definetag {
1.326 albertel 1257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1258:
1259: my $result;
1260:
1261: my $name = $token->[2]->{'name'};
1.326 albertel 1262: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1263: if ($target eq 'web') {
1264: if ($name=~/^\//) {
1265: $result=
1266: '<br /><table class="LC_sty_end"><tr><th>'.
1267: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1268: } else {
1269: $result=
1270: '<br /><table class="LC_sty_begin"><tr><th>'.
1271: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1272: }
1273: $skip = &HTML::Entities::encode($skip, '<>&"');
1274: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1275: }
1276: return $result;
1277: }
1278:
1279: sub end_definetag {
1280: return '';
1.1 albertel 1281: }
1282:
1283: sub start_block {
1.201 albertel 1284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1285:
1286: my $result;
1.1 albertel 1287:
1.339 albertel 1288: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1289: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1290: my $code = $token->[2]->{'condition'};
1.385 albertel 1291: if (defined($code) && $code ne '') {
1.137 albertel 1292: if (!$Apache::lonxml::default_homework_loaded) {
1293: &Apache::lonxml::default_homework_load($safeeval);
1294: }
1.131 albertel 1295: $result = &Apache::run::run($code,$safeeval);
1296: &Apache::lonxml::debug("block :$code: returned :$result:");
1297: } else {
1298: $result='1';
1299: }
1300: if ( ! $result ) {
1.201 albertel 1301: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1302: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1303: }
1304: $result='';
1305: } elsif ($target eq 'edit') {
1306: $result .=&Apache::edit::tag_start($target,$token);
1307: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1308: $token,40);
1309: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1310: } elsif ($target eq 'modified') {
1311: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1312: $safeeval,'condition');
1313: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1314: }
1.131 albertel 1315: return $result;
1.1 albertel 1316: }
1317:
1318: sub end_block {
1.167 www 1319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1320: my $result;
1321: if ($target eq "edit") {
1322: $result.= &Apache::edit::tag_end($target,$token,'');
1323: }
1324: return $result;
1325: }
1326:
1327: sub start_languageblock {
1.201 albertel 1328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1329:
1330: my $result;
1331:
1.339 albertel 1332: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1333: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1334: my $include = $token->[2]->{'include'};
1335: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1336: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1337: # This should not even happen, since we should at least have the server language
1.398 www 1338: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1339: # Now loop over all languages in order of preference
1340: foreach my $preferred_language (@preferred_languages) {
1.394 www 1341: # If the languageblock has no arguments, show the contents
1.399 www 1342: $result=1;
1343: my $found=0;
1.394 www 1344: # Do we have an include argument?
1.398 www 1345: if ($include) {
1.394 www 1346: # If include is specified, by default, don't render the block
1.399 www 1347: $result=0;
1.398 www 1348: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1349: # ... but if my preferred language is included, render it
1.398 www 1350: if ($included_language eq $preferred_language) {
1.399 www 1351: $result=1;
1352: $found=1;
1.398 www 1353: }
1354: }
1355: }
1.394 www 1356: # Do we have an exclude argument?
1.398 www 1357: if ($exclude) {
1.399 www 1358: $result=1;
1.398 www 1359: foreach my $excluded_language (split(/\,/,$exclude)) {
1360: if ($excluded_language eq $preferred_language) {
1.399 www 1361: $result=0;
1362: $found=1;
1.398 www 1363: }
1364: }
1365: }
1.399 www 1366: if ($found) { last; }
1.398 www 1367: }
1.201 albertel 1368: if ( ! $result ) {
1369: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1370: $style);
1371: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1372: }
1373: $result='';
1.167 www 1374: } elsif ($target eq 'edit') {
1375: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1376: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1377: $token,40);
1.211 albertel 1378: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1379: $token,40);
1380: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1381: } elsif ($target eq 'modified') {
1382: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1383: $safeeval,'include',
1384: 'exclude');
1.167 www 1385: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1386: }
1387: return $result;
1388: }
1389:
1390: sub end_languageblock {
1.170 www 1391: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1392: my $result;
1.201 albertel 1393: if ($target eq "edit") {
1.170 www 1394: $result.= &Apache::edit::tag_end($target,$token,'');
1395: }
1396: return $result;
1397: }
1398:
1.397 albertel 1399: {
1400: my %available_texts;
1401: sub start_translated {
1402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1403: &Apache::lonxml::register('Apache::structuretags',('lang'));
1404: undef(%available_texts);
1405: }
1406:
1407: sub end_translated {
1408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1409: my $result;
1410: #show the translation on viewable targets
1411: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1412: # or non-viewable targets, if it's embedded in something that
1413: # wants the output
1414: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1415: && &Apache::lonxml::in_redirection() ) ) {
1416: my @possibilities = keys(%available_texts);
1417: my $which =
1418: &Apache::loncommon::languages(\@possibilities) || 'default';
1419: $result = $available_texts{$which};
1420: }
1421: undef(%available_texts);
1422: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1423: return $result;
1424: }
1425:
1426:
1427: sub start_lang {
1428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1429: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1430: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1431: &Apache::lonxml::startredirection();
1432: }
1433: return '';
1434: }
1435:
1436: sub end_lang {
1437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1438: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1439: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1440: my $result = &Apache::lonxml::endredirection();
1441: my $which = &Apache::lonxml::get_param('which',$parstack,
1442: $safeeval);
1.431 raeburn 1443: if ($which=~/\w/) {
1444: $available_texts{$which} = $result;
1445: }
1446: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1447: $safeeval);
1448: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1449: if ($language=~/\w/) {
1450: $available_texts{$language} = $result;
1451: }
1.427 bisitz 1452: }
1453:
1.397 albertel 1454: }
1455: return '';
1456: }
1457: }
1458:
1.170 www 1459: sub start_instructorcomment {
1.201 albertel 1460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1461:
1462: my $result;
1463:
1.339 albertel 1464: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1465: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1466: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1467: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1468: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1469: $parser,$style);
1.170 www 1470: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1471: }
1472: $result='';
1473: } elsif ($target eq 'edit') {
1474: $result .=&Apache::edit::tag_start($target,$token);
1475: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1476: }
1477: return $result;
1478: }
1479:
1480: sub end_instructorcomment {
1.159 albertel 1481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1482: my $result;
1483: if ($target eq "edit") {
1484: $result.= &Apache::edit::tag_end($target,$token,'');
1485: }
1486: return $result;
1.4 tsai 1487: }
1488:
1489: sub start_while {
1.326 albertel 1490: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1491:
1.160 albertel 1492: my $result;
1.339 albertel 1493: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1494: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1495: my $code = $token->[2]->{'condition'};
1.4 tsai 1496:
1.160 albertel 1497: push( @Apache::structuretags::whileconds, $code);
1498: if (!$Apache::lonxml::default_homework_loaded) {
1499: &Apache::lonxml::default_homework_load($safeeval);
1500: }
1501: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1502: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1503: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1504: push( @Apache::structuretags::whileline, $token->[5]);
1505: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1506: if ( $result ) {
1507: &Apache::lonxml::newparser($parser,\$bodytext);
1508: }
1509: } elsif ($target eq 'edit') {
1510: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1511: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1512: $token,40);
1513: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1514: } elsif ($target eq 'modified') {
1515: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1516: $safeeval,'condition');
1517: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1518: }
1.160 albertel 1519: return $result;
1.4 tsai 1520: }
1521:
1522: sub end_while {
1.159 albertel 1523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1524: my $result;
1525:
1.339 albertel 1526: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1527: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1528: my $code = pop(@Apache::structuretags::whileconds);
1529: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1530: my $line = pop(@Apache::structuretags::whileline);
1531: my $return = &Apache::run::run($code,$safeeval);
1532: my $starttime=time;
1533: my $error=0;
1534: while ($return) {
1535: if (time-$starttime >
1536: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1537: $return = 0; $error=1; next;
1.161 albertel 1538: }
1539: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1540: if ($target eq 'grade' || $target eq 'answer' ||
1541: $target eq 'analyze') {
1542: # grade/answer/analyze should produce no output but if we
1543: # are redirecting, the redirecter should know what to do
1544: # with the output
1545: if (!$Apache::lonxml::redirection) { undef($result); }
1546: }
1.161 albertel 1547: $return = &Apache::run::run($code,$safeeval);
1548: }
1549: if ($error) {
1.430 bisitz 1550: &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 1551: }
1552: } elsif ($target eq "edit") {
1553: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1554: }
1.160 albertel 1555: return $result;
1.1 albertel 1556: }
1.6 tsai 1557:
1.160 albertel 1558: # <randomlist show="1">
1.6 tsai 1559: # <tag1>..</tag1>
1560: # <tag2>..</tag2>
1561: # <tag3>..</tag3>
1.160 albertel 1562: # ...
1.6 tsai 1563: # </randomlist>
1564: sub start_randomlist {
1.326 albertel 1565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1566: my $result;
1.339 albertel 1567: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1568: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1569: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1570: my $b_parser= HTML::LCParser->new(\$body);
1571: $b_parser->xml_mode(1);
1572: $b_parser->marked_sections(1);
1.159 albertel 1573: my $b_tok;
1574: my @randomlist;
1575: my $list_item;
1576: while($b_tok = $b_parser->get_token() ) {
1577: if($b_tok->[0] eq 'S') { # start tag
1578: # get content of the tag until matching end tag
1579: # get all text upto the matching tag
1580: # and push the content into @randomlist
1581: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1582: $b_parser);
1583: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1584: push(@randomlist,$list_item);
1585: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1586: # $list_item</b>";
1587: }
1588: if($b_tok->[0] eq 'T') { # text
1589: # what to do with text in between tags?
1590: # print "<b>TEXT $b_tok->[1]</b><br />";
1591: }
1592: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1593: # print "<b>END-TAG $b_tok->[1]</b><br />";
1594: # }
1595: }
1.303 albertel 1596: if (@randomlist) {
1597: my @idx_arr = (0 .. $#randomlist);
1598: &Apache::structuretags::shuffle(\@idx_arr);
1599: my $bodytext = '';
1600: my $show=$#randomlist;
1601: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1602: $showarg--;
1603: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1604: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1605: my @currlist;
1606: my $part = $Apache::inputtags::part;
1607: if ($part ne '') {
1608: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1609: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1610: if (!(grep(/^\Q$part\E$/,@currlist))) {
1611: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1612: }
1613: } else {
1614: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1615: }
1616: }
1617: }
1.303 albertel 1618: for(0 .. $show) {
1619: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1620: }
1621: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1622: }
1623: } elsif ($target eq 'edit' ) {
1624: $result .=&Apache::edit::tag_start($target,$token);
1625: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1626: $token,5);
1627: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1628: } elsif ($target eq 'modified' ) {
1629: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1630: $safeeval,'show');
1631: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1632: }
1633: return $result;
1.7 tsai 1634: }
1635:
1636: sub shuffle {
1637: my $a=shift;
1638: my $i;
1.303 albertel 1639: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1640: &Apache::response::pushrandomnumber();
1.159 albertel 1641: for($i=@$a;--$i;) {
1642: my $j=int(&Math::Random::random_uniform() * ($i+1));
1643: next if $i == $j;
1644: @$a[$i,$j] = @$a[$j,$i];
1645: }
1.251 albertel 1646: &Apache::response::poprandomnumber();
1.7 tsai 1647: }
1.6 tsai 1648: }
1649:
1650: sub end_randomlist {
1.159 albertel 1651: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1652: my $result;
1653: if ($target eq 'edit' ) {
1654: $result=&Apache::edit::tag_end($target,$token,
1655: 'End Randomly Parsed Block');
1656: }
1657: return $result;
1.6 tsai 1658: }
1659:
1.283 albertel 1660: sub ordered_show_check {
1661: my $last_part=$Apache::inputtags::partlist[-2];
1662: my $in_order=
1663: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1664: my $in_order_show=1;
1665: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1666: $in_order_show=&Apache::response::check_status($last_part);
1667: }
1668: return $in_order_show;
1669: }
1670:
1.11 albertel 1671: sub start_part {
1.326 albertel 1672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1673: if (!$Apache::lonxml::metamode) {
1674: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1675: # duedates.
1676: }
1.159 albertel 1677: my $result='';
1.386 albertel 1678: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1679: $Apache::inputtags::part=$id;
1.177 albertel 1680: push(@Apache::inputtags::partlist,$id);
1681: @Apache::inputtags::response=();
1.159 albertel 1682: @Apache::inputtags::previous=();
1683: @Apache::inputtags::previous_version=();
1.405 albertel 1684: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1685: &Apache::response::reset_params();
1686:
1.159 albertel 1687: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1688: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1689: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1690: my $in_order_show=&ordered_show_check();
1.214 albertel 1691: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1692: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1693: &Apache::run::run($expression,$safeeval);
1.159 albertel 1694:
1695: if ($target eq 'meta') {
1.224 www 1696: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1697: return &Apache::response::mandatory_part_meta.
1698: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1699: } elsif ($target eq 'web' || $target eq 'grade' ||
1700: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1701: if ($hidden || !$in_order_show) {
1.326 albertel 1702: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1703: } else {
1704: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1705: push (@Apache::inputtags::status,$status);
1706: my $expression='$external::datestatus="'.$status.'";';
1707: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1708: &Apache::run::run($expression,$safeeval);
1.284 albertel 1709: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1710: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1711: }
1.216 albertel 1712: if (( $status eq 'CLOSED' ) ||
1713: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1714: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1715: ( $status eq 'BANNED') ||
1716: ( $status eq 'UNAVAILABLE') ||
1717: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1718: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1719: $style);
1.159 albertel 1720: if ( $target eq "web" ) {
1.211 albertel 1721: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1722: } elsif ( $target eq 'tex' ) {
1.284 albertel 1723: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1724: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1725: } else {
1.211 albertel 1726: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1727: }
1.159 albertel 1728: }
1729: } else {
1730: if ($target eq 'tex') {
1.284 albertel 1731: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1732: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1733: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1734: } else {
1735: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1736: }
1.195 sakharuk 1737: }
1.159 albertel 1738: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1739: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1740: my @allkeys = split /,/,$allkeys;
1741: my $allow_print_points = 0;
1742: foreach my $partial_key (@allkeys) {
1.230 albertel 1743: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1744: if ($1 ne '0') {$allow_print_points=1;}
1745: }
1746: }
1.275 albertel 1747: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1748: if (defined($maxtries) && $maxtries < 0) {
1749: $allow_print_points=0;
1750: }
1.302 albertel 1751: if (lc($env{'course.'.$env{'request.course.id'}.
1752: '.disableexampointprint'}) eq 'yes') {
1753: $allow_print_points=0;
1754: }
1.222 sakharuk 1755: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1756: } elsif ($target eq 'web') {
1.356 www 1757: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1758: }
1759: }
1760: }
1761: } elsif ($target eq 'edit') {
1762: $result.=&Apache::edit::tag_start($target,$token);
1763: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1764: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1765: ' '.
1766: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1767: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1768: } elsif ($target eq 'modified') {
1769: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1770: $safeeval,'id','display');
1.159 albertel 1771: if ($constructtag) {
1.225 albertel 1772: #limiting ids to only letters numbers, and space
1.224 www 1773: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1774: $result = &Apache::edit::rebuild_tag($token);
1775: }
1776: }
1777: return $result;
1.11 albertel 1778: }
1779:
1780: sub end_part {
1.159 albertel 1781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1782: &Apache::lonxml::debug("in end_part $target ");
1783: my $status=$Apache::inputtags::status['-1'];
1784: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1785: my $in_order_show=&ordered_show_check();
1.321 albertel 1786: my $result;
1787: if (!$Apache::lonxml::metamode) {
1788: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1789: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1790: }
1.312 albertel 1791: if ($target eq 'grade') {
1.249 albertel 1792: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1793: !$hidden && $in_order_show) {
1.311 foxr 1794: $result.=&Apache::inputtags::grade;
1.249 albertel 1795: } else {
1796: # move any submission data to .hidden
1797: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1798: }
1.283 albertel 1799: } elsif (($target eq 'web' || $target eq 'tex') &&
1800: !$hidden && $in_order_show) {
1.159 albertel 1801: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1802: $target);
1.212 albertel 1803: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1804: $gradestatus='';
1805: }
1.311 foxr 1806: $result.=$gradestatus;
1.265 sakharuk 1807: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1808: } elsif ($target eq 'edit') {
1.311 foxr 1809: $result.=&Apache::edit::end_table();
1.322 albertel 1810: } elsif ($target eq 'modified') {
1811: $result .= $token->[2];
1.159 albertel 1812: }
1813: pop @Apache::inputtags::status;
1814: $Apache::inputtags::part='';
1.295 albertel 1815: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1816: return $result;
1.11 albertel 1817: }
1.1 albertel 1818:
1.25 albertel 1819: sub start_preduedate {
1.326 albertel 1820: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1821: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1822: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1823: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1824: if (!$Apache::lonhomework::scantronmode &&
1825: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1826: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1827: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1828: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1829: }
1.24 albertel 1830: }
1.159 albertel 1831: return '';
1.24 albertel 1832: }
1833:
1.25 albertel 1834: sub end_preduedate {
1.159 albertel 1835: return '';
1.24 albertel 1836: }
1837:
1.369 foxr 1838: # In all the modes where <postanswerdate> text is
1839: # displayable, all we do is eat up the text between the start/stop
1840: # tags if the conditions are not right to display it.
1.25 albertel 1841: sub start_postanswerdate {
1.326 albertel 1842: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1843: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1844: &Apache::lonnet::allowed('pav',
1845: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1846: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1847: $target eq 'tex' ) {
1.300 albertel 1848: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1849: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1850: (($target eq 'tex') && !$pav)) {
1.326 albertel 1851: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1852: }
1853: }
1854: return '';
1.24 albertel 1855: }
1856:
1.25 albertel 1857: sub end_postanswerdate {
1.159 albertel 1858: return '';
1.24 albertel 1859: }
1860:
1.25 albertel 1861: sub start_notsolved {
1.326 albertel 1862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1863: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1864: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1865: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1866: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1867: if ($gradestatus =~ /^correct/ &&
1868: &Apache::response::show_answer()) {
1.159 albertel 1869: &Apache::lonxml::debug("skipping");
1.326 albertel 1870: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1871: }
1.24 albertel 1872: }
1.159 albertel 1873: return '';
1.24 albertel 1874: }
1875:
1.25 albertel 1876: sub end_notsolved {
1.159 albertel 1877: return '';
1.24 albertel 1878: }
1879:
1880: sub start_solved {
1.326 albertel 1881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1882: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1883: $target eq 'tex') {
1884: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1885: if ($gradestatus !~ /^correct/ ||
1886: !&Apache::response::show_answer()) {
1.326 albertel 1887: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1888: }
1.24 albertel 1889: }
1.159 albertel 1890: return '';
1.24 albertel 1891: }
1892:
1893: sub end_solved {
1.248 albertel 1894: return '';
1895: }
1896:
1897: sub start_problemtype {
1.326 albertel 1898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1899: my $result;
1.339 albertel 1900: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1901: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1902: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1903: if (!defined($mode)) { $mode='show'; }
1904: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1905: my $found=0;
1906: foreach my $type (split(',',$for)) {
1907: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1908: }
1909: if ($mode eq 'show' && !$found) {
1.326 albertel 1910: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1911: }
1912: if ($mode eq 'hide' && $found) {
1.326 albertel 1913: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1914: }
1915: } elsif ($target eq 'edit') {
1916: $result .=&Apache::edit::tag_start($target,$token);
1917: $result.=&Apache::edit::select_arg('Mode:','mode',
1918: [['show','Show'],
1919: ['hide','Hide']]
1920: ,$token);
1921: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1922: [ ['exam','Exam/Quiz Problem'],
1923: ['survey','Survey'],
1.428 raeburn 1924: ['problem','Homework Problem'],
1925: ['practice','Practice Problem'] ]
1.248 albertel 1926: ,$token);
1927: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1928: } elsif ($target eq 'modified') {
1929: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1930: $safeeval,'mode','for');
1931: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1932: }
1933: return $result;
1934: }
1935:
1936: sub end_problemtype {
1.159 albertel 1937: return '';
1.24 albertel 1938: }
1.34 albertel 1939:
1940: sub start_startouttext {
1.159 albertel 1941: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1942: my @result=(''.'');
1943: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1944:
1945: my $nesting =
1946: &Apache::lonxml::set_state('outtext',
1947: &Apache::lonxml::get_state('outtext')+1);
1948: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1949: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1950: }
1.159 albertel 1951: return (@result);
1.34 albertel 1952: }
1.159 albertel 1953:
1.34 albertel 1954: sub end_startouttext {
1.326 albertel 1955: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1956: my $result='';
1957: my $text='';
1958: if ($target eq 'edit') {
1.424 foxr 1959: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1960: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1961: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1962: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1963: .&Apache::edit::deletelist($target,$token)
1964: .'</span></td>';
1.425 raeburn 1965: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1966: $result .= '<td align="left">'
1967: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1968: .'</td>'
1969: .'<td>'
1970: .&Apache::edit::insertlist($target,$token)
1971: .'</td>';
1972: }
1.425 raeburn 1973: $result.='<td align="right" valign="top">' .
1.434 foxr 1974: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1975: &Apache::edit::end_row().
1.362 albertel 1976: &Apache::edit::start_spanning_row()."\n".
1.255 www 1977: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1978: }
1979: if ($target eq 'modified') {
1.219 albertel 1980: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1981: }
1982: if ($target eq 'tex') {
1983: $result .= '\noindent ';
1984: }
1985: return $result;
1.34 albertel 1986: }
1.159 albertel 1987:
1.34 albertel 1988: sub start_endouttext {
1.159 albertel 1989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1990: my $result='';
1991: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1992: if ($target eq "modified") {
1993: $result='<endouttext />'.
1.377 albertel 1994: &Apache::edit::handle_insertafter('startouttext');
1995: }
1.404 albertel 1996:
1997: my $nesting =
1998: &Apache::lonxml::set_state('outtext',
1999: &Apache::lonxml::get_state('outtext')-1);
2000: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2001: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2002: &Apache::lonxml::set_state('outtext', 0);
2003: }
1.159 albertel 2004: return $result;
1.34 albertel 2005: }
1.159 albertel 2006:
1.34 albertel 2007: sub end_endouttext {
1.159 albertel 2008: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2009: my @result=('','');
2010: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2011: return (@result);
1.34 albertel 2012: }
1.159 albertel 2013:
1.45 albertel 2014: sub delete_startouttext {
1.326 albertel 2015: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2016: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2017: my $text=$$parser['-1']->get_text("/endouttext");
2018: my $ntoken=$$parser['-1']->get_token();
2019: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2020: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2021: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2022: # they did the last time round
2023: &Apache::lonxml::increasedepth($ntoken);
2024: &Apache::lonxml::decreasedepth($ntoken);
2025: return 1;
1.193 www 2026: }
2027:
2028: sub start_simpleeditbutton {
2029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2030: my $result='';
1.284 albertel 2031: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2032: ($target eq 'web') &&
1.330 albertel 2033: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2034: my $url=$env{'request.noversionuri'};
1.193 www 2035: $url=~s/\?.*$//;
1.367 albertel 2036: my ($symb) = &Apache::lonnet::whichuser();
1.442 bisitz 2037: # Warning make more sense and is more important on edit screen
2038: # $result='<p class="LC_warning">'
2039: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2040: # .&Apache::loncommon::help_open_topic('Caching')
2041: # .'</p>';
2042: $result.=&Apache::lontemplate::start_functionslist()
2043: .&Apache::lontemplate::item_functionslist(
2044: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a>')
2045: .&Apache::lontemplate::end_functionslist();
2046:
1.193 www 2047: }
2048: return $result;
2049: }
2050:
2051: sub end_simpleeditbutton {
2052: return '';
1.45 albertel 2053: }
1.34 albertel 2054:
1.428 raeburn 2055: sub practice_problem_header {
2056: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2057: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2058: '</span>';
2059: }
2060:
1.1 albertel 2061: 1;
2062: __END__
1.435 jms 2063:
2064: =pod
2065:
2066: =back
2067:
2068: =cut
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