Annotation of loncom/homework/structuretags.pm, revision 1.383
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.383 ! albertel 4: # $Id: structuretags.pm,v 1.382 2007/06/22 20:42:20 albertel 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:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.248 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 ! albertel 50: if ($target ne 'edit' && $target ne 'modified') {
! 51: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
! 52: if ($target eq 'web' || $target eq 'webgrade') {
! 53: return $bodytext;
! 54: }
! 55: } elsif ($target eq "edit" ) {
! 56: my $bodytext =
! 57: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
! 58: my $result = &Apache::edit::tag_start($target,$token);
! 59: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
! 60: return $result;
! 61: } elsif ( $target eq "modified" ) {
! 62: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 63: }
64: return '';
1.10 albertel 65: }
66:
67: sub end_web {
1.44 ng 68: return '';
1.10 albertel 69: }
70:
71: sub start_tex {
1.326 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 73: my $result='';
1.383 ! albertel 74: if ($target ne 'edit' && $target ne 'modified') {
! 75: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
! 76: if ($target eq 'tex') {
! 77: return $bodytext.' ';
! 78: }
! 79: } elsif ($target eq "edit" ) {
! 80: my $bodytext =
! 81: &Apache::lonxml::get_all_text_unbalanced("/tex",$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 $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 87: }
1.198 sakharuk 88: return $result;;
1.10 albertel 89: }
90:
91: sub end_tex {
1.44 ng 92: return '';
1.9 albertel 93: }
94:
1.48 albertel 95: sub page_start {
1.345 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
97: $extra_head)=@_;
1.159 albertel 98: my %found;
1.207 albertel 99: foreach my $taginside (@$tagstack) {
1.159 albertel 100: foreach my $taglookedfor ('html','body','form') {
101: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
102: }
103: }
104:
1.343 albertel 105: if ($target eq 'tex') {
106: return
107: &Apache::londefdef::start_html($target,$token,$tagstack,
108: $parstack,$parser,$safeeval);
109: }
110:
1.374 albertel 111: $extra_head.= '
112: <script type="text/javascript">
113: function setSubmittedPart (part) {
114: this.document.lonhomework.submitted.value="part_"+part;
115: }
116: </script>
117: ';
118:
1.344 albertel 119: my %body_args;
120: if (defined($found{'html'})) {
121: $body_args{'skip_phases'}{'head'}=1;
122: } else {
1.343 albertel 123:
1.345 albertel 124: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 125:
1.379 albertel 126: $extra_head .= &Apache::londefdef::generate_css_links();
127:
1.327 albertel 128: if ($target eq 'edit') {
1.343 albertel 129: $extra_head.=&Apache::edit::js_change_detection().
130: "<script type=\"text/javascript\">\n".
131: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
132: &Apache::loncommon::browser_and_searcher_javascript().
133: "\n</script>\n";
134: }
1.159 albertel 135: }
1.343 albertel 136:
1.344 albertel 137: if (defined($found{'body'})) {
138: $body_args{'skip_phases'}{'body'}=1;
139: } elsif (!defined($found{'body'})
140: && $env{'request.state'} eq 'construct') {
1.343 albertel 141: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 142: # no extra args to bodytag
1.297 albertel 143: }
1.272 albertel 144: } elsif (!defined($found{'body'})) {
1.343 albertel 145: my %add_entries;
1.159 albertel 146: my $background=&Apache::lonxml::get_param('background',$parstack,
147: $safeeval);
1.343 albertel 148: if ($background ne '' ) {
149: $add_entries{'background'} = $background;
150: }
1.344 albertel 151:
1.290 albertel 152: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
153: $safeeval);
1.344 albertel 154: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
155:
156: $body_args{'bgcolor'} = $bgcolor;
157: $body_args{'no_title'} = 1;
158: $body_args{'force_register'} = 1;
159: $body_args{'add_entries'} = \%add_entries;
160: }
1.365 albertel 161: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 162: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
163: \%body_args);
164:
165: if (!defined($found{'body'})
166: && $env{'request.state'} ne 'construct'
167: && ($target eq 'web' || $target eq 'webgrade')) {
168:
1.367 albertel 169: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 170: if ($symb eq '' && !$publicuser) {
171: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
172: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
173: $page_start .= $help;
1.159 albertel 174: }
1.344 albertel 175: }
176:
177: if (!defined($found{'body'})) {
1.343 albertel 178: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 179: }
1.344 albertel 180:
1.159 albertel 181: my $form_tag_start;
182: if (!defined($found{'form'})) {
1.337 albertel 183: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 184: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 185: $form_tag_start.=$uri.'" ';
186: if ($target eq 'edit') {
187: $form_tag_start.=&Apache::edit::form_change_detection();
188: }
1.368 albertel 189: $form_tag_start.='>'."\n";
1.355 albertel 190:
191: my $symb=&Apache::lonnet::symbread();
192: if ($symb =~ /\S/) {
193: $symb=
194: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
195: $form_tag_start.=
1.368 albertel 196: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 197: }
1.159 albertel 198: }
1.343 albertel 199: return ($page_start,$form_tag_start);
1.105 albertel 200: }
201:
1.141 matthew 202: #use Time::HiRes();
1.105 albertel 203: sub get_resource_name {
1.159 albertel 204: my ($parstack,$safeeval)=@_;
1.204 albertel 205: if (defined($Apache::lonhomework::name)) {
206: return $Apache::lonhomework::name;
207: }
1.367 albertel 208: my ($symb)=&Apache::lonnet::whichuser();
1.279 albertel 209: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 210: if ($name eq '') {
211: $name=&Apache::lonnet::EXT('resource.title');
212: if ($name eq 'con_lost') { $name = ''; }
213: }
1.204 albertel 214: if ($name!~/\S+/) {
1.284 albertel 215: $name=$env{'request.uri'};
1.205 albertel 216: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 217: }
1.159 albertel 218: $Apache::lonhomework::name=$name;
219: return $name;
1.105 albertel 220: }
221:
222: sub setup_rndseed {
1.159 albertel 223: my ($safeeval)=@_;
224: my $rndseed;
1.367 albertel 225: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 226: if ($env{'request.state'} eq "construct"
227: || $symb eq ''
228: || $Apache::lonhomework::type eq 'practice'
229: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 230: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 231: ['rndseed']);
1.284 albertel 232: $rndseed=$env{'form.rndseed'};
1.159 albertel 233: if (!$rndseed) {
1.162 albertel 234: $rndseed=$Apache::lonhomework::history{'rndseed'};
235: if (!$rndseed) {
236: $rndseed=time;
237: }
1.284 albertel 238: $env{'form.rndseed'}=$rndseed;
1.162 albertel 239: }
1.374 albertel 240: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
241: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 242: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 243: srand(time);
244: $rndseed=int(rand(2100000000));
1.284 albertel 245: $env{'form.rndseed'}=$rndseed;
246: delete($env{'form.resetdata'});
247: delete($env{'form.newrandomization'});
1.159 albertel 248: }
1.187 albertel 249: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 250: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 251: }
1.247 albertel 252: if ($Apache::lonhomework::history{'resource.CODE'}) {
253: $rndseed=&Apache::lonnet::rndseed();
254: }
1.221 albertel 255: if ($safeeval) {
256: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 257: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 258: }
1.159 albertel 259: }
260: return $rndseed;
1.105 albertel 261: }
262:
1.268 albertel 263: sub remember_problem_state {
264: return '
1.284 albertel 265: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
266: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
267: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 268: }
269:
1.105 albertel 270: sub problem_edit_header {
1.268 albertel 271: return '<input type="hidden" name="submitted" value="edit" />'.
272: &Apache::structuretags::remember_problem_state().'
1.210 albertel 273: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 274: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 275: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 276: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
277: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
278: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 279: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 280: .'</td></tr></table>'.
1.282 albertel 281: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 282: }
283:
284: sub problem_edit_footer {
1.210 albertel 285: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 286: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 287: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 288: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 289: }
290:
1.235 albertel 291: sub option {
292: my ($value,$name) = @_;
293: my $result ="<option value='".$value."' ";
1.284 albertel 294: if ($env{'form.'.$name} eq $value) {
1.235 albertel 295: $result.=" selected='on' ";
296: }
297: $result.='>';
298: return $result;
299: }
300:
1.105 albertel 301: sub problem_web_to_edit_header {
1.159 albertel 302: my ($rndseed)=@_;
1.313 albertel 303: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 304: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 305: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 306: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
307: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 308: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 309: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 310: $rndseed.'"
1.270 albertel 311: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 312: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 313: my $show_all_foils_text =
314: ($Apache::lonhomework::parsing_a_task) ?
315: &mt(' Show All Instances')
316: : &mt(' Show All Foils');
317:
1.284 albertel 318: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.371 albertel 319: $result.= ' />'.$show_all_foils_text.'</label>'.
1.228 www 320: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 321: '<hr />';
1.313 albertel 322: if (!$Apache::lonhomework::parsing_a_task) {
323: $result.="
1.235 albertel 324: <nobr>
325: Problem Status:
326: <select name='problemstate'>
1.270 albertel 327: <option value=''></option>
1.235 albertel 328: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
329: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
330: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
331: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
332: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
333: </select>
334: </nobr>
335: <nobr>
336: Problem Type:
337: <select name='problemtype'>
1.270 albertel 338: <option value=''></option>
1.242 albertel 339: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
340: ".&option('problem','problemtype').&mt("Homework problem")."</option>
341: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 342: </select>
343: </nobr>
344: <nobr>
345: Feedback Mode:
346: <select name='problemstatus'>
347: <option value=''></option>
1.242 albertel 348: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
349: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 350: </select>
351: </nobr>
1.242 albertel 352: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 353: <hr />";
1.313 albertel 354: my $numtoanalyze=$env{'form.numtoanalyze'};
355: if (!$numtoanalyze) { $numtoanalyze=20; }
356: $result.= '<input type="submit" name="problemmode" value='.
357: &mt('"Calculate answers').'" /> for
1.136 albertel 358: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 359: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
360: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 361: '',undef,undef,300).
1.210 albertel 362: '<hr />';
1.376 albertel 363: } elsif ($Apache::lonhomework::parsing_a_task) {
364: $result.="
365: <nobr>
366: Problem Status:
367: <select name='problemstate'>
368: <option value=''></option>
369: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
370: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
371: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
372: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
373: </select>
374: </nobr>
375: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
376: <hr />";
1.313 albertel 377: }
1.159 albertel 378: return $result;
1.48 albertel 379: }
380:
1.65 albertel 381: sub initialize_storage {
1.357 albertel 382: my ($given_symb) = @_;
1.353 albertel 383: undef(%Apache::lonhomework::results);
384: undef(%Apache::lonhomework::history);
1.357 albertel 385: my ($symb,$courseid,$domain,$name) =
1.367 albertel 386: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 387:
388: # anonymous users (CODEd exams) have no data
389: if ($name eq 'anonymous'
390: && !defined($domain)) {
391: return;
392: }
393:
1.333 albertel 394: if ($env{'request.state'} eq 'construct'
395: || $symb eq ''
396: || $Apache::lonhomework::type eq 'practice') {
397:
398: my $namespace = $symb || $env{'request.uri'};
399: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 400: ($env{'form.resetdata'} eq &mt('New Problem Variation')
401: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 402: $env{'form.newrandomization'} eq &mt('New Randomization')) {
403: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
404: &Apache::lonxml::debug("Attempt reset");
405: }
1.159 albertel 406: %Apache::lonhomework::history=
1.333 albertel 407: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 408: my ($temp)=keys %Apache::lonhomework::history ;
409: &Apache::lonxml::debug("Return message of $temp");
410: } else {
411: %Apache::lonhomework::history=
412: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
413: }
1.353 albertel 414:
1.159 albertel 415: #ignore error conditions
1.67 albertel 416: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 417: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 418: }
419:
420: # -------------------------------------------------------------finalize_storage
421: # Stores away the result has to a student's environment
422: # checks form.grade_ for specific values, other wises stores
423: # to the running users environment
1.285 raeburn 424: # Will increment totals for attempts, students, and corrects
425: # if running user has student role.
1.65 albertel 426: sub finalize_storage {
1.357 albertel 427: my ($given_symb) = @_;
1.159 albertel 428: my $result;
1.289 albertel 429: if (%Apache::lonhomework::results) {
1.323 albertel 430: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
431: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 432: my ($symb,$courseid,$domain,$name) =
1.367 albertel 433: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 434: if ($env{'request.state'} eq 'construct'
435: || $symb eq ''
436: || $Apache::lonhomework::type eq 'practice') {
437: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 438: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 439: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 440: $namespace,'',$domain,$name);
1.159 albertel 441: &Apache::lonxml::debug('Construct Store return message:'.$result);
442: } else {
443: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
444: $symb,$courseid,$domain,$name);
445: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 446: if ($env{'request.role'} =~/^st/) {
447: &store_aggregates($symb,$courseid);
448: }
1.159 albertel 449: }
1.323 albertel 450: } else {
451: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 452: }
1.159 albertel 453: return $result;
1.65 albertel 454: }
1.289 albertel 455: use Data::Dumper;
1.65 albertel 456:
1.285 raeburn 457: # -------------------------------------------------------------store_aggregates
458: # Sends hash of values to be incremented in nohist_resourcetracker.db
459: # for the course. Increments total number of attempts, unique students
460: # and corrects for each part for an instance of a problem, as appropriate.
461: sub store_aggregates {
462: my ($symb,$courseid) = @_;
1.286 albertel 463: my %aggregate;
464: my @parts;
1.288 albertel 465: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
466: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 467: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 468: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 469: push(@parts, $1);
1.285 raeburn 470: }
471: }
1.286 albertel 472: foreach my $part (@parts) {
473: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
474: eq 'APPROX_ANS' ||
475: $Apache::lonhomework::results{'resource.'.$part.'.award'}
476: eq 'EXACT_ANS') {
1.287 albertel 477: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 478: }
1.286 albertel 479: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 480: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 481: } else {
1.293 albertel 482: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 483: if ($last_reset) {
1.293 albertel 484: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 485: $aggregate{$symb."\0".$part."\0users"} = 1;
486: }
487: }
1.285 raeburn 488: }
1.287 albertel 489: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 490: }
1.292 raeburn 491: if (keys (%aggregate) > 0) {
1.289 albertel 492: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 493: $cdomain,$cname);
494: }
495: }
1.289 albertel 496:
1.65 albertel 497: sub checkout_msg {
1.211 albertel 498: my %lt=&Apache::lonlocal::texthash(
499: 'resource'=>'The resource needs to be checked out',
500: '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.',
501: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
502: 'checkout'=>'Check out Exam for Viewing',
503: 'checkout?'=>'Check out Exam?');
1.352 albertel 504: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 505: return (<<ENDCHECKOUT);
1.211 albertel 506: <h2>$lt{'resource'}</h2>
507: <p>$lt{'id_expln'}</p>
508: <font color="red">
509: <p>$lt{'warning'}</p>
1.91 albertel 510: </font>
1.352 albertel 511: <form name="checkout" method="POST" action="$uri">
1.91 albertel 512: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 513: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 514: </form>
515: ENDCHECKOUT
516: }
517:
1.252 albertel 518: sub firstaccess_msg {
1.253 albertel 519: my ($time,$symb)=@_;
520: my ($map)=&Apache::lonnet::decode_symb($symb);
521: my $foldertitle=&Apache::lonnet::gettitle($map);
522: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 523: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 524: return (<<ENDCHECKOUT);
1.253 albertel 525: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.352 albertel 526: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 527: <input type="hidden" name="markaccess" value="yes" />
528: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
529: </form>
530: ENDCHECKOUT
531: }
532:
1.204 albertel 533: sub init_problem_globals {
534: my ($type)=@_;
535: #initialize globals
1.308 foxr 536: # For problems, we start out in part 0 (outside a <part> tag).
537: # and part 0 is used to describe the main body of the <problem>
538: #
1.204 albertel 539: if ($type eq 'problem') {
540: $Apache::inputtags::part='0';
541: @Apache::inputtags::partlist=('0');
1.266 albertel 542: $Apache::lonhomework::problemstatus=&get_problem_status('0');
543: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 544:
1.266 albertel 545: } elsif ($type eq 'library') {
1.204 albertel 546: $Apache::inputtags::part='';
547: @Apache::inputtags::partlist=();
548: $Apache::lonhomework::problemstatus='';
1.266 albertel 549: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 550:
1.304 albertel 551: } elsif ($type eq 'Task') {
552: $Apache::inputtags::part='0';
553: @Apache::inputtags::partlist=('0');
554: $Apache::lonhomework::problemstatus='';
555: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 556: }
557: @Apache::inputtags::responselist = ();
558: @Apache::inputtags::importlist = ();
559: @Apache::inputtags::previous=();
560: @Apache::inputtags::previous_version=();
561: $Apache::structuretags::printanswer='No';
562: @Apache::structuretags::whileconds=();
563: @Apache::structuretags::whilebody=();
564: @Apache::structuretags::whileline=();
565: $Apache::lonhomework::scantronmode=0;
566: undef($Apache::lonhomework::name);
1.358 albertel 567: undef($Apache::lonhomework::default_type);
568: undef($Apache::lonhomework::type);
1.204 albertel 569: }
570:
571: sub reset_problem_globals {
572: my ($type)=@_;
573: undef(%Apache::lonhomework::history);
574: undef(%Apache::lonhomework::results);
575: undef($Apache::inputtags::part);
1.208 albertel 576: #don't undef this, lonhomework.pm takes care of this, we use this to
577: #detect if we try to do 2 problems in one file
578: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 579: undef($Apache::lonhomework::name);
1.358 albertel 580: undef($Apache::lonhomework::default_type);
581: undef($Apache::lonhomework::type);
582: undef($Apache::lonhomework::scantronmode);
583: undef($Apache::lonhomework::problemstatus);
584: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 585: }
586:
1.241 albertel 587: sub set_problem_state {
1.240 albertel 588: my ($part)=@_;
1.284 albertel 589: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 590: $Apache::lonhomework::history{"resource.$part.solved"}=
591: 'correct_by_student';
592: }
593: }
594:
1.241 albertel 595: sub get_problem_status {
596: my ($part)=@_;
1.267 albertel 597: my $problem_status;
1.284 albertel 598: if ($env{'request.state'} eq 'construct' &&
599: defined($env{'form.problemstatus'})) {
600: $problem_status=$env{'form.problemstatus'};
1.267 albertel 601: } else {
602: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
603: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 604: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 605: }
606: return $problem_status;
607: }
608:
1.9 albertel 609: sub start_problem {
1.326 albertel 610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 611:
1.311 foxr 612: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 613: if (!$Apache::lonxml::metamode) {
614: &Apache::lonxml::startredirection();
615: }
1.311 foxr 616:
1.308 foxr 617: # Problems don't nest and we don't allow more than one <problem> in
618: # a .problem file.
619: #
1.184 albertel 620: if ( $Apache::inputtags::part ne '' ||
621: $Apache::lonhomework::parsing_a_problem) {
622: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 623: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 624: return '';
625: }
1.184 albertel 626:
627: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 628: &init_problem_globals('problem');
1.166 albertel 629:
1.284 albertel 630: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 631: $Apache::lonhomework::scantronmode=1;
632: }
1.161 albertel 633:
1.159 albertel 634: if ($target ne 'analyze') {
1.284 albertel 635: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 636: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 637: if (($env{'request.state'} eq 'construct') &&
638: defined($env{'form.problemtype'})) {
639: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 640: }
1.332 albertel 641: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 642: }
1.164 albertel 643: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 644: my $uri=$env{'request.uri'};
1.159 albertel 645: if ($uri=~/\.(\w+)$/) {
646: $Apache::lonhomework::type=$1;
647: &Apache::lonxml::debug("Using type of $1");
648: } else {
649: $Apache::lonhomework::type='problem';
650: &Apache::lonxml::debug("Using default type, problem, :$uri:");
651: }
1.87 albertel 652: }
1.301 albertel 653: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 654:
1.363 albertel 655: &initialize_storage();
1.366 albertel 656: if ($target eq 'web') {
657: &Apache::lonxml::debug(" grading history ");
658: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
659: }
1.363 albertel 660:
1.159 albertel 661: #added vars to the scripting enviroment
1.213 albertel 662: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 663: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 664: &Apache::run::run($expression,$safeeval);
1.159 albertel 665: my $status;
666: my $accessmsg;
667:
1.343 albertel 668: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 669: my ($result,$form_tag_start);
1.354 albertel 670: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
671: || $target eq 'edit') {
1.350 albertel 672: ($result,$form_tag_start) =
673: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
674: $name);
675: }
676:
1.284 albertel 677: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 678:
679: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
680: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
681: $target eq 'tex') {
682: #handle exam checkout
683: if ($Apache::lonhomework::type eq 'exam') {
684: my $token=
685: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 686: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 687: $token=&Apache::lonxml::maketoken();
688: $Apache::lonhomework::history{"resource.0.outtoken"}=
689: $token;
690: }
1.343 albertel 691: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 692: }
1.284 albertel 693: if ($env{'form.markaccess'}) {
1.252 albertel 694: &Apache::lonnet::set_first_access('map');
695: }
1.159 albertel 696: #handle rand seed in construction space
697: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 698: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 699: if ($env{'request.state'} ne "construct" &&
700: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 701: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
702: $rndseed.'" />'.
703: '<input type="submit" name="resetdata"
1.334 albertel 704: value="'.&mt('New Problem Variation').'" />';
705: if (exists($env{'form.username'})) {
706: $form_tag_start.=
1.164 albertel 707: '<input type="hidden" name="username"
1.284 albertel 708: value="'.$env{'form.username'}.'" />';
1.334 albertel 709: }
1.333 albertel 710: if ($env{'request.role.adv'}) {
1.267 albertel 711: $form_tag_start.=
1.300 albertel 712: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 713: if (defined($env{'form.showallfoils'})) {
1.267 albertel 714: $form_tag_start.='checked="on"';
715: }
1.300 albertel 716: $form_tag_start.= ' />'.&mt(' Show All Foils').
717: '</label>';
1.267 albertel 718: }
719: $form_tag_start.='<hr />';
1.162 albertel 720: }
1.324 albertel 721:
722: ($status,$accessmsg,my $slot_name,my $slot) =
723: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 724: push (@Apache::inputtags::status,$status);
1.324 albertel 725:
1.159 albertel 726: my $expression='$external::datestatus="'.$status.'";';
727: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
728: &Apache::run::run($expression,$safeeval);
729: &Apache::lonxml::debug("Got $status");
1.324 albertel 730:
1.159 albertel 731: if (( $status eq 'CLOSED' ) ||
732: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 733: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 734: ( $status eq 'BANNED') ||
1.216 albertel 735: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 736: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 737: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 738: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
739: $style);
1.159 albertel 740: if ( $target eq "web" ) {
1.343 albertel 741: my $msg;
1.159 albertel 742: if ($status eq 'UNAVAILABLE') {
1.245 albertel 743: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 744: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 745: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 746: }
1.216 albertel 747: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 748: $msg.='The problem '.$accessmsg;
749: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 750: $msg.=&checkout_msg();
1.252 albertel 751: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 752: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 753: } elsif ($status eq 'NOT_IN_A_SLOT') {
754: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 755: }
756: $result.=$msg.'<br />';
757: } elsif ($target eq 'tex') {
1.332 albertel 758: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
759: : '\begin{minipage}{\textwidth}';
760: $result.='\begin{document}\noindent \vskip 1 mm '.
761: $startminipage.'\vskip 0 mm';
1.159 albertel 762: if ($status eq 'UNAVAILABLE') {
1.211 albertel 763: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 764: } else {
1.211 albertel 765: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 766: }
767: }
1.324 albertel 768: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 769: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
770: $style);
1.324 albertel 771: if ($target eq 'web') {
1.375 albertel 772: $result .=
773: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 774: } elsif ($target eq 'grade') {
775: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
776: 'problem');
777: }
1.159 albertel 778: } elsif ($target eq 'web') {
1.360 albertel 779: if ($status eq 'CAN_ANSWER'
780: && $slot_name ne ''
781: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
782: # unproctored slot access, self checkin
783: &Apache::bridgetask::check_in('problem',undef,undef,
784: $slot_name);
785: }
1.368 albertel 786: $result.="\n $form_tag_start \t".
1.227 albertel 787: '<input type="hidden" name="submitted" value="yes" />';
788: # create a page header and exit
1.284 albertel 789: if ($env{'request.state'} eq "construct") {
790: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 791: }
792: # if we are viewing someone else preserve that info
1.284 albertel 793: if (defined $env{'form.grade_symb'}) {
1.227 albertel 794: foreach my $field ('symb','courseid','domain','username') {
795: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 796: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 797: }
798: }
799: } elsif ($target eq 'tex') {
1.319 foxr 800: $result .= 'INSERTTEXFRONTMATTERHERE';
801:
1.99 sakharuk 802: }
1.159 albertel 803: } elsif ($target eq 'edit') {
1.343 albertel 804: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 805: $Apache::lonxml::warnings_error_header=
806: &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 807: my $temp=&Apache::edit::insertlist($target,$token);
808: $result.=$temp;
809: } elsif ($target eq 'modified') {
810: $result=$token->[4];
811: } else {
812: # page_start returned a starting result, delete it if we don't need it
813: $result = '';
1.99 sakharuk 814: }
1.159 albertel 815: return $result;
1.9 albertel 816: }
817:
818: sub end_problem {
1.159 albertel 819: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 820: my $result;
1.310 foxr 821:
1.321 albertel 822: if (!$Apache::lonxml::metamode) {
823: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 824: $Apache::lonxml::post_evaluate=0;
1.321 albertel 825: }
1.319 foxr 826:
827: if ($target eq 'tex') {
1.321 albertel 828: # Figure out the front matter and replace the
829: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
830: # this in end_problem because whether or not we display due
831: # dates depends on whether due dates have already been
832: # displayed in the problem parts.
833:
1.319 foxr 834: my $frontmatter = '';
835: my $startminipage = '';
836: if (not $env{'form.problem_split'}=~/yes/) {
837: $startminipage = '\begin{minipage}{\textwidth}';
838: }
839: my $id = $Apache::inputtags::part;
840: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
841: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
842: my @packages = split /,/,$packages;
843: my $allow_print_points = 0;
844: foreach my $partial_key (@packages) {
845: if ($partial_key=~m/^part_0$/) {
846: $allow_print_points=1;
847: }
848: }
849: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
850: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
851: if (lc($env{'course.'.$env{'request.course.id'}.
852: '.disableexampointprint'}) eq 'yes') {
853: $allow_print_points=0;
854: }
855: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
856: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
857: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
858: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
859:
860: # Figure out what the due date is and if we need to print
861: # it in the problem header. We have been logging the
862: # last due date written to file.
863:
864: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
865: my $duedate = POSIX::strftime("%c",localtime($duetime));
866: my $temp_file;
867: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
868:
869: # Figure out what the last printed due date is or set it
870: # to the epoch if no duedates have been printed.
871:
872: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
873: if (-e $filename) {
874: $temp_file = Apache::File->new($filename);
875: my @due_file = <$temp_file>;
876: $due_file_content = $due_file[$#due_file];
877: chomp $due_file_content;
878: }
879:
880: # We display the due date iff it is not the same as the last
881: # duedate in problem header ($due_file_content), and
882: # none of our parts displayed a duedate.
883: #
884: my $parts_with_displayduedate;
885: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
886: $parts_with_displayduedate =
887: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
888: } else {
889: $parts_with_displayduedate = 0;
890: }
891: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
892: $temp_file = Apache::File->new('>'.$filename);
893: print $temp_file "$duetime\n";
894: if (not $env{'request.symb'} =~ m/\.page_/) {
895: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
896: $frontmatter .= $begin_doc.
897: '\textit{Due date: '.$duedate.'} '.$toc_line;
898: } else {
899: $frontmatter.= $begin_doc.$toc_line;
900: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
901: }
902: } else {
1.381 albertel 903: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 904: }
905: } else {
906: if (not $env{'request.symb'} =~ m/\.page_/) {
907: $frontmatter .= $begin_doc.$toc_line;
908: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
909: } else {
1.381 albertel 910: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 911: }
912: }
913: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
914: }
915:
1.159 albertel 916: my $status=$Apache::inputtags::status['-1'];
917: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
918: $target eq 'tex') {
1.249 albertel 919: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 920: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 921: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
922: &Apache::inputtags::grade;
1.324 albertel 923: } elsif ($status eq 'NEEDS_CHECKIN') {
924: # no need to grade, and don't want to hide data
1.249 albertel 925: } else {
926: # move any submission data to .hidden
927: &Apache::inputtags::hidealldata($Apache::inputtags::part);
928: }
1.159 albertel 929: } elsif ( ($target eq 'web' || $target eq 'tex') &&
930: $Apache::inputtags::part eq '0' &&
1.252 albertel 931: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 932: # if part is zero, no <part>s existed, so we need show the current
933: # grading status
934: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
935: $result.= $gradestatus;
936: }
937: if (
1.284 albertel 938: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 939: ($target eq 'answer') || ($target eq 'tex')
940: ) {
1.227 albertel 941: if ($target ne 'tex' &&
1.284 albertel 942: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 943: $result.="</form>";
1.348 albertel 944: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 945: }
946: if ($target eq 'web') {
1.346 albertel 947: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 948: } elsif ($target eq 'tex') {
1.178 sakharuk 949: my $endminipage = '';
1.284 albertel 950: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 951: $endminipage = '\end{minipage}';
952: }
1.284 albertel 953: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 954: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 955: } else {
1.262 sakharuk 956: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 957: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 958: $result .= $endminipage.'\end{document} ';
959: } else {
1.382 albertel 960: $result .= $endminipage;
1.262 sakharuk 961: }
1.159 albertel 962: }
963: }
964: }
965: if ($target eq 'grade') {
966: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
967: &finalize_storage();
968: }
1.284 albertel 969: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
970: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 971: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 972: # normally we get it from above, but in CSTR
1.172 albertel 973: # we always show answer mode too.
1.159 albertel 974: }
975: } elsif ($target eq 'meta') {
976: if ($Apache::inputtags::part eq '0') {
1.179 albertel 977: @Apache::inputtags::response=();
1.159 albertel 978: $result=&Apache::response::mandatory_part_meta;
979: }
1.215 albertel 980: $result.=&Apache::response::meta_part_order();
1.258 albertel 981: $result.=&Apache::response::meta_response_order();
1.159 albertel 982: } elsif ($target eq 'edit') {
983: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 984: $result .= &problem_edit_footer();
1.320 albertel 985: } elsif ($target eq 'modified') {
986: $result .= $token->[2];
1.159 albertel 987: }
1.155 albertel 988:
1.284 albertel 989: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 990: &Apache::inputtags::check_for_duplicate_ids();
991: }
1.204 albertel 992:
993: &reset_problem_globals('problem');
1.159 albertel 994:
995: return $result;
1.48 albertel 996: }
997:
1.108 albertel 998:
1.48 albertel 999: sub start_library {
1.159 albertel 1000: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1001: my ($result,$form_tag_start);
1.371 albertel 1002: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1003: &init_problem_globals('library');
1004: $Apache::lonhomework::type='problem';
1005: }
1.159 albertel 1006: if ($target eq 'edit') {
1.343 albertel 1007: ($result,$form_tag_start)=
1008: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1009: 'Edit');
1010: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1011: my $temp=&Apache::edit::insertlist($target,$token);
1012: $result.=$temp;
1013: } elsif ($target eq 'modified') {
1014: $result=$token->[4];
1.340 albertel 1015: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1016: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1017: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1018: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1019: ($result,$form_tag_start)=
1020: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1021: $name);
1.159 albertel 1022: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1023: $result.=" \n $form_tag_start".
1.159 albertel 1024: '<input type="hidden" name="submitted" value="yes" />';
1025: $result.=&problem_web_to_edit_header($rndseed);
1026: }
1027: return $result;
1.48 albertel 1028: }
1029:
1030: sub end_library {
1.159 albertel 1031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1032: my $result='';
1033: if ($target eq 'edit') {
1034: $result=&problem_edit_footer();
1.371 albertel 1035: } elsif ($target eq 'web'
1036: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1037: && $env{'request.state'} eq "construct") {
1.349 albertel 1038: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1039: }
1.371 albertel 1040: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1041: &reset_problem_globals('library');
1042: }
1.159 albertel 1043: return $result;
1.197 www 1044: }
1045:
1046: sub start_definetag {
1.326 albertel 1047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1048:
1049: my $result;
1050:
1051: my $name = $token->[2]->{'name'};
1.326 albertel 1052: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1053: if ($name=~/^\//) {
1054: $result=
1055: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1056: } else {
1057: $result=
1058: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1059: }
1060: $skip=~s/\</\<\;/gs;
1061: $skip=~s/\>/\>\;/gs;
1062: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1063: return $result;
1064: }
1065:
1066: sub end_definetag {
1067: return '';
1.1 albertel 1068: }
1069:
1070: sub start_block {
1.201 albertel 1071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1072:
1073: my $result;
1.1 albertel 1074:
1.339 albertel 1075: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1076: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1077: my $code = $token->[2]->{'condition'};
1.201 albertel 1078: if (defined($code)) {
1.137 albertel 1079: if (!$Apache::lonxml::default_homework_loaded) {
1080: &Apache::lonxml::default_homework_load($safeeval);
1081: }
1.131 albertel 1082: $result = &Apache::run::run($code,$safeeval);
1083: &Apache::lonxml::debug("block :$code: returned :$result:");
1084: } else {
1085: $result='1';
1086: }
1087: if ( ! $result ) {
1.201 albertel 1088: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1089: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1090: }
1091: $result='';
1092: } elsif ($target eq 'edit') {
1093: $result .=&Apache::edit::tag_start($target,$token);
1094: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1095: $token,40);
1096: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1097: } elsif ($target eq 'modified') {
1098: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1099: $safeeval,'condition');
1100: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1101: }
1.131 albertel 1102: return $result;
1.1 albertel 1103: }
1104:
1105: sub end_block {
1.167 www 1106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1107: my $result;
1108: if ($target eq "edit") {
1109: $result.= &Apache::edit::tag_end($target,$token,'');
1110: }
1111: return $result;
1112: }
1113:
1114: sub start_languageblock {
1.201 albertel 1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1116:
1117: my $result;
1118:
1.339 albertel 1119: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1120: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1121: my $include = $token->[2]->{'include'};
1122: my $exclude = $token->[2]->{'exclude'};
1123: my %languages=&Apache::loncommon::display_languages();
1124: $result='1';
1125: if ($include) {
1126: $result='';
1127: foreach (split(/\,/,$include)) {
1128: if ($languages{$_}) { $result='1'; }
1129: }
1130: }
1131: if ($exclude) {
1132: foreach (split(/\,/,$exclude)) {
1133: if ($languages{$_}) { $result='0'; }
1134: }
1135: }
1136: if ( ! $result ) {
1137: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1138: $style);
1139: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1140: }
1141: $result='';
1.167 www 1142: } elsif ($target eq 'edit') {
1143: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1144: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1145: $token,40);
1.211 albertel 1146: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1147: $token,40);
1148: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1149: } elsif ($target eq 'modified') {
1150: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1151: $safeeval,'include',
1152: 'exclude');
1.167 www 1153: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1154: }
1155: return $result;
1156: }
1157:
1158: sub end_languageblock {
1.170 www 1159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1160: my $result;
1.201 albertel 1161: if ($target eq "edit") {
1.170 www 1162: $result.= &Apache::edit::tag_end($target,$token,'');
1163: }
1164: return $result;
1165: }
1166:
1167: sub start_instructorcomment {
1.201 albertel 1168: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1169:
1170: my $result;
1171:
1.339 albertel 1172: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1173: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1174: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1175: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1176: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1177: $parser,$style);
1.170 www 1178: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1179: }
1180: $result='';
1181: } elsif ($target eq 'edit') {
1182: $result .=&Apache::edit::tag_start($target,$token);
1183: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1184: }
1185: return $result;
1186: }
1187:
1188: sub end_instructorcomment {
1.159 albertel 1189: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1190: my $result;
1191: if ($target eq "edit") {
1192: $result.= &Apache::edit::tag_end($target,$token,'');
1193: }
1194: return $result;
1.4 tsai 1195: }
1196:
1197: sub start_while {
1.326 albertel 1198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1199:
1.160 albertel 1200: my $result;
1.339 albertel 1201: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1202: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1203: my $code = $token->[2]->{'condition'};
1.4 tsai 1204:
1.160 albertel 1205: push( @Apache::structuretags::whileconds, $code);
1206: if (!$Apache::lonxml::default_homework_loaded) {
1207: &Apache::lonxml::default_homework_load($safeeval);
1208: }
1209: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1210: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1211: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1212: push( @Apache::structuretags::whileline, $token->[5]);
1213: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1214: if ( $result ) {
1215: &Apache::lonxml::newparser($parser,\$bodytext);
1216: }
1217: } elsif ($target eq 'edit') {
1218: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1219: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1220: $token,40);
1221: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1222: } elsif ($target eq 'modified') {
1223: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1224: $safeeval,'condition');
1225: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1226: }
1.160 albertel 1227: return $result;
1.4 tsai 1228: }
1229:
1230: sub end_while {
1.159 albertel 1231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1232: my $result;
1233:
1.339 albertel 1234: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1235: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1236: my $code = pop(@Apache::structuretags::whileconds);
1237: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1238: my $line = pop(@Apache::structuretags::whileline);
1239: my $return = &Apache::run::run($code,$safeeval);
1240: my $starttime=time;
1241: my $error=0;
1242: while ($return) {
1243: if (time-$starttime >
1244: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1245: $return = 0; $error=1; next;
1.161 albertel 1246: }
1247: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1248: if ($target eq 'grade' || $target eq 'answer' ||
1249: $target eq 'analyze') {
1250: # grade/answer/analyze should produce no output but if we
1251: # are redirecting, the redirecter should know what to do
1252: # with the output
1253: if (!$Apache::lonxml::redirection) { undef($result); }
1254: }
1.161 albertel 1255: $return = &Apache::run::run($code,$safeeval);
1256: }
1257: if ($error) {
1.270 albertel 1258: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1259: }
1260: } elsif ($target eq "edit") {
1261: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1262: }
1.160 albertel 1263: return $result;
1.1 albertel 1264: }
1.6 tsai 1265:
1.160 albertel 1266: # <randomlist show="1">
1.6 tsai 1267: # <tag1>..</tag1>
1268: # <tag2>..</tag2>
1269: # <tag3>..</tag3>
1.160 albertel 1270: # ...
1.6 tsai 1271: # </randomlist>
1272: sub start_randomlist {
1.326 albertel 1273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1274: my $result;
1.339 albertel 1275: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1276: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1277: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1278: my $b_parser= HTML::LCParser->new(\$body);
1279: $b_parser->xml_mode(1);
1280: $b_parser->marked_sections(1);
1.159 albertel 1281: my $b_tok;
1282: my @randomlist;
1283: my $list_item;
1284: while($b_tok = $b_parser->get_token() ) {
1285: if($b_tok->[0] eq 'S') { # start tag
1286: # get content of the tag until matching end tag
1287: # get all text upto the matching tag
1288: # and push the content into @randomlist
1289: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1290: $b_parser);
1291: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1292: push(@randomlist,$list_item);
1293: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1294: # $list_item</b>";
1295: }
1296: if($b_tok->[0] eq 'T') { # text
1297: # what to do with text in between tags?
1298: # print "<b>TEXT $b_tok->[1]</b><br />";
1299: }
1300: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1301: # print "<b>END-TAG $b_tok->[1]</b><br />";
1302: # }
1303: }
1.303 albertel 1304: if (@randomlist) {
1305: my @idx_arr = (0 .. $#randomlist);
1306: &Apache::structuretags::shuffle(\@idx_arr);
1307: my $bodytext = '';
1308: my $show=$#randomlist;
1309: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1310: $showarg--;
1311: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1312: for(0 .. $show) {
1313: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1314: }
1315: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1316: }
1317: } elsif ($target eq 'edit' ) {
1318: $result .=&Apache::edit::tag_start($target,$token);
1319: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1320: $token,5);
1321: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1322: } elsif ($target eq 'modified' ) {
1323: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1324: $safeeval,'show');
1325: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1326: }
1327: return $result;
1.7 tsai 1328: }
1329:
1330: sub shuffle {
1331: my $a=shift;
1332: my $i;
1.303 albertel 1333: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1334: &Apache::response::pushrandomnumber();
1.159 albertel 1335: for($i=@$a;--$i;) {
1336: my $j=int(&Math::Random::random_uniform() * ($i+1));
1337: next if $i == $j;
1338: @$a[$i,$j] = @$a[$j,$i];
1339: }
1.251 albertel 1340: &Apache::response::poprandomnumber();
1.7 tsai 1341: }
1.6 tsai 1342: }
1343:
1344: sub end_randomlist {
1.159 albertel 1345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1346: my $result;
1347: if ($target eq 'edit' ) {
1348: $result=&Apache::edit::tag_end($target,$token,
1349: 'End Randomly Parsed Block');
1350: }
1351: return $result;
1.6 tsai 1352: }
1353:
1.283 albertel 1354: sub ordered_show_check {
1355: my $last_part=$Apache::inputtags::partlist[-2];
1356: my $in_order=
1357: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1358: my $in_order_show=1;
1359: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1360: $in_order_show=&Apache::response::check_status($last_part);
1361: }
1362: return $in_order_show;
1363: }
1364:
1.11 albertel 1365: sub start_part {
1.326 albertel 1366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1367: if (!$Apache::lonxml::metamode) {
1368: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1369: # duedates.
1370: }
1.159 albertel 1371: my $result='';
1372: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1373: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1374: $Apache::inputtags::part=$id;
1.177 albertel 1375: push(@Apache::inputtags::partlist,$id);
1376: @Apache::inputtags::response=();
1.159 albertel 1377: @Apache::inputtags::previous=();
1378: @Apache::inputtags::previous_version=();
1.241 albertel 1379: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1380: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1381: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1382: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1383: my $in_order_show=&ordered_show_check();
1.214 albertel 1384: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1385: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1386: &Apache::run::run($expression,$safeeval);
1.159 albertel 1387:
1388: if ($target eq 'meta') {
1.224 www 1389: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1390: return &Apache::response::mandatory_part_meta.
1391: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1392: } elsif ($target eq 'web' || $target eq 'grade' ||
1393: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1394: if ($hidden || !$in_order_show) {
1.326 albertel 1395: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1396: } else {
1397: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1398: push (@Apache::inputtags::status,$status);
1399: my $expression='$external::datestatus="'.$status.'";';
1400: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1401: &Apache::run::run($expression,$safeeval);
1.284 albertel 1402: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1403: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1404: }
1.216 albertel 1405: if (( $status eq 'CLOSED' ) ||
1406: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1407: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1408: ( $status eq 'BANNED') ||
1409: ( $status eq 'UNAVAILABLE') ||
1410: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1411: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1412: $style);
1.159 albertel 1413: if ( $target eq "web" ) {
1.211 albertel 1414: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1415: } elsif ( $target eq 'tex' ) {
1.284 albertel 1416: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1417: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1418: } else {
1.211 albertel 1419: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1420: }
1.159 albertel 1421: }
1422: } else {
1423: if ($target eq 'tex') {
1.284 albertel 1424: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1425: if ($$tagstack[-2] eq 'td') {
1426: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1427: } else {
1428: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1429: }
1.195 sakharuk 1430: }
1.159 albertel 1431: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1432: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1433: my @allkeys = split /,/,$allkeys;
1434: my $allow_print_points = 0;
1435: foreach my $partial_key (@allkeys) {
1.230 albertel 1436: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1437: if ($1 ne '0') {$allow_print_points=1;}
1438: }
1439: }
1.275 albertel 1440: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1441: if (defined($maxtries) && $maxtries < 0) {
1442: $allow_print_points=0;
1443: }
1.302 albertel 1444: if (lc($env{'course.'.$env{'request.course.id'}.
1445: '.disableexampointprint'}) eq 'yes') {
1446: $allow_print_points=0;
1447: }
1.222 sakharuk 1448: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1449: } elsif ($target eq 'web') {
1.356 www 1450: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1451: }
1452: }
1453: }
1454: } elsif ($target eq 'edit') {
1455: $result.=&Apache::edit::tag_start($target,$token);
1456: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1457: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1458: ' '.
1459: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1460: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1461: } elsif ($target eq 'modified') {
1462: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1463: $safeeval,'id','display');
1.159 albertel 1464: if ($constructtag) {
1.225 albertel 1465: #limiting ids to only letters numbers, and space
1.224 www 1466: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1467: $result = &Apache::edit::rebuild_tag($token);
1468: }
1469: }
1470: return $result;
1.11 albertel 1471: }
1472:
1473: sub end_part {
1.159 albertel 1474: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1475: &Apache::lonxml::debug("in end_part $target ");
1476: my $status=$Apache::inputtags::status['-1'];
1477: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1478: my $in_order_show=&ordered_show_check();
1.321 albertel 1479: my $result;
1480: if (!$Apache::lonxml::metamode) {
1481: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1482: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1483: }
1.312 albertel 1484: if ($target eq 'grade') {
1.249 albertel 1485: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1486: !$hidden && $in_order_show) {
1.311 foxr 1487: $result.=&Apache::inputtags::grade;
1.249 albertel 1488: } else {
1489: # move any submission data to .hidden
1490: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1491: }
1.283 albertel 1492: } elsif (($target eq 'web' || $target eq 'tex') &&
1493: !$hidden && $in_order_show) {
1.159 albertel 1494: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1495: $target);
1.212 albertel 1496: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1497: $gradestatus='';
1498: }
1.311 foxr 1499: $result.=$gradestatus;
1.265 sakharuk 1500: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1501: } elsif ($target eq 'edit') {
1.311 foxr 1502: $result.=&Apache::edit::end_table();
1.322 albertel 1503: } elsif ($target eq 'modified') {
1504: $result .= $token->[2];
1.159 albertel 1505: }
1506: pop @Apache::inputtags::status;
1507: $Apache::inputtags::part='';
1.295 albertel 1508: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1509: return $result;
1.11 albertel 1510: }
1.1 albertel 1511:
1.25 albertel 1512: sub start_preduedate {
1.326 albertel 1513: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1514: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1515: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1516: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1517: if (!$Apache::lonhomework::scantronmode &&
1518: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1519: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1520: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1521: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1522: }
1.24 albertel 1523: }
1.159 albertel 1524: return '';
1.24 albertel 1525: }
1526:
1.25 albertel 1527: sub end_preduedate {
1.159 albertel 1528: return '';
1.24 albertel 1529: }
1530:
1.369 foxr 1531: # In all the modes where <postanswerdate> text is
1532: # displayable, all we do is eat up the text between the start/stop
1533: # tags if the conditions are not right to display it.
1.25 albertel 1534: sub start_postanswerdate {
1.326 albertel 1535: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1536: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1537: &Apache::lonnet::allowed('pav',
1538: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1539: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1540: $target eq 'tex' ) {
1.300 albertel 1541: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1542: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1543: (($target eq 'tex') && !$pav)) {
1.326 albertel 1544: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1545: }
1546: }
1547: return '';
1.24 albertel 1548: }
1549:
1.25 albertel 1550: sub end_postanswerdate {
1.159 albertel 1551: return '';
1.24 albertel 1552: }
1553:
1.25 albertel 1554: sub start_notsolved {
1.326 albertel 1555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1556: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1557: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1558: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1559: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1560: if ($gradestatus =~ /^correct/ &&
1561: &Apache::response::show_answer()) {
1.159 albertel 1562: &Apache::lonxml::debug("skipping");
1.326 albertel 1563: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1564: }
1.24 albertel 1565: }
1.159 albertel 1566: return '';
1.24 albertel 1567: }
1568:
1.25 albertel 1569: sub end_notsolved {
1.159 albertel 1570: return '';
1.24 albertel 1571: }
1572:
1573: sub start_solved {
1.326 albertel 1574: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1575: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1576: $target eq 'tex') {
1577: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1578: if ($gradestatus !~ /^correct/ ||
1579: !&Apache::response::show_answer()) {
1.326 albertel 1580: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1581: }
1.24 albertel 1582: }
1.159 albertel 1583: return '';
1.24 albertel 1584: }
1585:
1586: sub end_solved {
1.248 albertel 1587: return '';
1588: }
1589:
1590: sub start_problemtype {
1.326 albertel 1591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1592: my $result;
1.339 albertel 1593: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1594: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1595: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1596: if (!defined($mode)) { $mode='show'; }
1597: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1598: my $found=0;
1599: foreach my $type (split(',',$for)) {
1600: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1601: }
1602: if ($mode eq 'show' && !$found) {
1.326 albertel 1603: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1604: }
1605: if ($mode eq 'hide' && $found) {
1.326 albertel 1606: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1607: }
1608: } elsif ($target eq 'edit') {
1609: $result .=&Apache::edit::tag_start($target,$token);
1610: $result.=&Apache::edit::select_arg('Mode:','mode',
1611: [['show','Show'],
1612: ['hide','Hide']]
1613: ,$token);
1614: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1615: [ ['exam','Exam/Quiz Problem'],
1616: ['survey','Survey'],
1617: ['problem','Homework Problem'] ]
1618: ,$token);
1619: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1620: } elsif ($target eq 'modified') {
1621: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1622: $safeeval,'mode','for');
1623: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1624: }
1625: return $result;
1626: }
1627:
1628: sub end_problemtype {
1.159 albertel 1629: return '';
1.24 albertel 1630: }
1.34 albertel 1631:
1632: sub start_startouttext {
1.159 albertel 1633: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1634: my @result=(''.'');
1635: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1636: return (@result);
1.34 albertel 1637: }
1.159 albertel 1638:
1.34 albertel 1639: sub end_startouttext {
1.326 albertel 1640: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1641: my $result='';
1642: my $text='';
1643:
1644: if ($target eq 'edit') {
1.326 albertel 1645: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1646: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1647: <td>".&mt('Delete:').
1.159 albertel 1648: &Apache::edit::deletelist($target,$token)
1649: ."</td>
1.42 albertel 1650: <td>".
1.159 albertel 1651: &Apache::edit::insertlist($target,$token).
1.362 albertel 1652: '</td><td align="right" valign="top">' .
1653: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1654: &Apache::edit::end_row().
1.362 albertel 1655: &Apache::edit::start_spanning_row()."\n".
1.255 www 1656: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1657: }
1658: if ($target eq 'modified') {
1.219 albertel 1659: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1660: }
1661: if ($target eq 'tex') {
1662: $result .= '\noindent ';
1663: }
1664: return $result;
1.34 albertel 1665: }
1.159 albertel 1666:
1.34 albertel 1667: sub start_endouttext {
1.159 albertel 1668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1669: my $result='';
1670: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1671: if ($target eq "modified") {
1672: $result='<endouttext />'.
1.377 albertel 1673: &Apache::edit::handle_insertafter('startouttext');
1674: }
1.159 albertel 1675: return $result;
1.34 albertel 1676: }
1.159 albertel 1677:
1.34 albertel 1678: sub end_endouttext {
1.159 albertel 1679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1680: my @result=('','');
1681: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1682: return (@result);
1.34 albertel 1683: }
1.159 albertel 1684:
1.45 albertel 1685: sub delete_startouttext {
1.326 albertel 1686: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1687: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1688: my $text=$$parser['-1']->get_text("/endouttext");
1689: my $ntoken=$$parser['-1']->get_token();
1690: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1691: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1692: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1693: # they did the last time round
1694: &Apache::lonxml::increasedepth($ntoken);
1695: &Apache::lonxml::decreasedepth($ntoken);
1696: return 1;
1.193 www 1697: }
1698:
1699: sub start_simpleeditbutton {
1700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1701: my $result='';
1.284 albertel 1702: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1703: ($target eq 'web') &&
1.330 albertel 1704: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1705: my $url=$env{'request.noversionuri'};
1.193 www 1706: $url=~s/\?.*$//;
1.367 albertel 1707: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1708: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1709: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1710: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1711: }
1712: return $result;
1713: }
1714:
1715: sub end_simpleeditbutton {
1716: return '';
1.45 albertel 1717: }
1.34 albertel 1718:
1.1 albertel 1719: 1;
1720: __END__
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