Annotation of loncom/homework/structuretags.pm, revision 1.380
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.380 ! albertel 4: # $Id: structuretags.pm,v 1.379 2007/06/05 22:37:56 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)=@_;
50: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 51: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 52: return $bodytext;
1.159 albertel 53: }
54: return '';
1.10 albertel 55: }
56:
57: sub end_web {
1.44 ng 58: return '';
1.10 albertel 59: }
60:
61: sub start_tex {
1.326 albertel 62: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 63: my $result='';
1.326 albertel 64: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 65: if ($target eq 'tex') {
66: return $bodytext.' ';
1.159 albertel 67: }
1.198 sakharuk 68: return $result;;
1.10 albertel 69: }
70:
71: sub end_tex {
1.44 ng 72: return '';
1.9 albertel 73: }
74:
1.48 albertel 75: sub page_start {
1.345 albertel 76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
77: $extra_head)=@_;
1.159 albertel 78: my %found;
1.207 albertel 79: foreach my $taginside (@$tagstack) {
1.159 albertel 80: foreach my $taglookedfor ('html','body','form') {
81: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
82: }
83: }
84:
1.343 albertel 85: if ($target eq 'tex') {
86: return
87: &Apache::londefdef::start_html($target,$token,$tagstack,
88: $parstack,$parser,$safeeval);
89: }
90:
1.374 albertel 91: $extra_head.= '
92: <script type="text/javascript">
93: function setSubmittedPart (part) {
94: this.document.lonhomework.submitted.value="part_"+part;
95: }
96: </script>
97: ';
98:
1.344 albertel 99: my %body_args;
100: if (defined($found{'html'})) {
101: $body_args{'skip_phases'}{'head'}=1;
102: } else {
1.343 albertel 103:
1.345 albertel 104: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 105:
1.379 albertel 106: $extra_head .= &Apache::londefdef::generate_css_links();
107:
1.327 albertel 108: if ($target eq 'edit') {
1.343 albertel 109: $extra_head.=&Apache::edit::js_change_detection().
110: "<script type=\"text/javascript\">\n".
111: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
112: &Apache::loncommon::browser_and_searcher_javascript().
113: "\n</script>\n";
114: }
1.159 albertel 115: }
1.343 albertel 116:
1.344 albertel 117: if (defined($found{'body'})) {
118: $body_args{'skip_phases'}{'body'}=1;
119: } elsif (!defined($found{'body'})
120: && $env{'request.state'} eq 'construct') {
1.343 albertel 121: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 122: # no extra args to bodytag
1.297 albertel 123: }
1.272 albertel 124: } elsif (!defined($found{'body'})) {
1.343 albertel 125: my %add_entries;
1.159 albertel 126: my $background=&Apache::lonxml::get_param('background',$parstack,
127: $safeeval);
1.343 albertel 128: if ($background ne '' ) {
129: $add_entries{'background'} = $background;
130: }
1.344 albertel 131:
1.290 albertel 132: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
133: $safeeval);
1.344 albertel 134: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
135:
136: $body_args{'bgcolor'} = $bgcolor;
137: $body_args{'no_title'} = 1;
138: $body_args{'force_register'} = 1;
139: $body_args{'add_entries'} = \%add_entries;
140: }
1.365 albertel 141: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 142: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
143: \%body_args);
144:
145: if (!defined($found{'body'})
146: && $env{'request.state'} ne 'construct'
147: && ($target eq 'web' || $target eq 'webgrade')) {
148:
1.367 albertel 149: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 150: if ($symb eq '' && !$publicuser) {
151: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
152: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
153: $page_start .= $help;
1.159 albertel 154: }
1.344 albertel 155: }
156:
157: if (!defined($found{'body'})) {
1.343 albertel 158: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 159: }
1.344 albertel 160:
1.159 albertel 161: my $form_tag_start;
162: if (!defined($found{'form'})) {
1.337 albertel 163: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 164: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 165: $form_tag_start.=$uri.'" ';
166: if ($target eq 'edit') {
167: $form_tag_start.=&Apache::edit::form_change_detection();
168: }
1.368 albertel 169: $form_tag_start.='>'."\n";
1.355 albertel 170:
171: my $symb=&Apache::lonnet::symbread();
172: if ($symb =~ /\S/) {
173: $symb=
174: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
175: $form_tag_start.=
1.368 albertel 176: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 177: }
1.159 albertel 178: }
1.343 albertel 179: return ($page_start,$form_tag_start);
1.105 albertel 180: }
181:
1.141 matthew 182: #use Time::HiRes();
1.105 albertel 183: sub get_resource_name {
1.159 albertel 184: my ($parstack,$safeeval)=@_;
1.204 albertel 185: if (defined($Apache::lonhomework::name)) {
186: return $Apache::lonhomework::name;
187: }
1.367 albertel 188: my ($symb)=&Apache::lonnet::whichuser();
1.279 albertel 189: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 190: if ($name eq '') {
191: $name=&Apache::lonnet::EXT('resource.title');
192: if ($name eq 'con_lost') { $name = ''; }
193: }
1.204 albertel 194: if ($name!~/\S+/) {
1.284 albertel 195: $name=$env{'request.uri'};
1.205 albertel 196: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 197: }
1.159 albertel 198: $Apache::lonhomework::name=$name;
199: return $name;
1.105 albertel 200: }
201:
202: sub setup_rndseed {
1.159 albertel 203: my ($safeeval)=@_;
204: my $rndseed;
1.367 albertel 205: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 206: if ($env{'request.state'} eq "construct"
207: || $symb eq ''
208: || $Apache::lonhomework::type eq 'practice'
209: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 210: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 211: ['rndseed']);
1.284 albertel 212: $rndseed=$env{'form.rndseed'};
1.159 albertel 213: if (!$rndseed) {
1.162 albertel 214: $rndseed=$Apache::lonhomework::history{'rndseed'};
215: if (!$rndseed) {
216: $rndseed=time;
217: }
1.284 albertel 218: $env{'form.rndseed'}=$rndseed;
1.162 albertel 219: }
1.374 albertel 220: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
221: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 222: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 223: srand(time);
224: $rndseed=int(rand(2100000000));
1.284 albertel 225: $env{'form.rndseed'}=$rndseed;
226: delete($env{'form.resetdata'});
227: delete($env{'form.newrandomization'});
1.159 albertel 228: }
1.187 albertel 229: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 230: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 231: }
1.247 albertel 232: if ($Apache::lonhomework::history{'resource.CODE'}) {
233: $rndseed=&Apache::lonnet::rndseed();
234: }
1.221 albertel 235: if ($safeeval) {
236: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 237: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 238: }
1.159 albertel 239: }
240: return $rndseed;
1.105 albertel 241: }
242:
1.268 albertel 243: sub remember_problem_state {
244: return '
1.284 albertel 245: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
246: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
247: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 248: }
249:
1.105 albertel 250: sub problem_edit_header {
1.268 albertel 251: return '<input type="hidden" name="submitted" value="edit" />'.
252: &Apache::structuretags::remember_problem_state().'
1.210 albertel 253: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 254: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 255: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 256: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
257: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
258: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 259: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 260: .'</td></tr></table>'.
1.282 albertel 261: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 262: }
263:
264: sub problem_edit_footer {
1.210 albertel 265: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 266: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 267: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 268: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 269: }
270:
1.235 albertel 271: sub option {
272: my ($value,$name) = @_;
273: my $result ="<option value='".$value."' ";
1.284 albertel 274: if ($env{'form.'.$name} eq $value) {
1.235 albertel 275: $result.=" selected='on' ";
276: }
277: $result.='>';
278: return $result;
279: }
280:
1.105 albertel 281: sub problem_web_to_edit_header {
1.159 albertel 282: my ($rndseed)=@_;
1.313 albertel 283: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 284: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 285: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 286: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
287: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 288: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 289: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 290: $rndseed.'"
1.270 albertel 291: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 292: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 293: my $show_all_foils_text =
294: ($Apache::lonhomework::parsing_a_task) ?
295: &mt(' Show All Instances')
296: : &mt(' Show All Foils');
297:
1.284 albertel 298: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.371 albertel 299: $result.= ' />'.$show_all_foils_text.'</label>'.
1.228 www 300: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 301: '<hr />';
1.313 albertel 302: if (!$Apache::lonhomework::parsing_a_task) {
303: $result.="
1.235 albertel 304: <nobr>
305: Problem Status:
306: <select name='problemstate'>
1.270 albertel 307: <option value=''></option>
1.235 albertel 308: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
309: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
310: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
311: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
312: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
313: </select>
314: </nobr>
315: <nobr>
316: Problem Type:
317: <select name='problemtype'>
1.270 albertel 318: <option value=''></option>
1.242 albertel 319: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
320: ".&option('problem','problemtype').&mt("Homework problem")."</option>
321: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 322: </select>
323: </nobr>
324: <nobr>
325: Feedback Mode:
326: <select name='problemstatus'>
327: <option value=''></option>
1.242 albertel 328: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
329: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 330: </select>
331: </nobr>
1.242 albertel 332: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 333: <hr />";
1.313 albertel 334: my $numtoanalyze=$env{'form.numtoanalyze'};
335: if (!$numtoanalyze) { $numtoanalyze=20; }
336: $result.= '<input type="submit" name="problemmode" value='.
337: &mt('"Calculate answers').'" /> for
1.136 albertel 338: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 339: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
340: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 341: '',undef,undef,300).
1.210 albertel 342: '<hr />';
1.376 albertel 343: } elsif ($Apache::lonhomework::parsing_a_task) {
344: $result.="
345: <nobr>
346: Problem Status:
347: <select name='problemstate'>
348: <option value=''></option>
349: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
350: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
351: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
352: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
353: </select>
354: </nobr>
355: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
356: <hr />";
1.313 albertel 357: }
1.159 albertel 358: return $result;
1.48 albertel 359: }
360:
1.65 albertel 361: sub initialize_storage {
1.357 albertel 362: my ($given_symb) = @_;
1.353 albertel 363: undef(%Apache::lonhomework::results);
364: undef(%Apache::lonhomework::history);
1.357 albertel 365: my ($symb,$courseid,$domain,$name) =
1.367 albertel 366: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 367:
368: # anonymous users (CODEd exams) have no data
369: if ($name eq 'anonymous'
370: && !defined($domain)) {
371: return;
372: }
373:
1.333 albertel 374: if ($env{'request.state'} eq 'construct'
375: || $symb eq ''
376: || $Apache::lonhomework::type eq 'practice') {
377:
378: my $namespace = $symb || $env{'request.uri'};
379: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 380: ($env{'form.resetdata'} eq &mt('New Problem Variation')
381: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 382: $env{'form.newrandomization'} eq &mt('New Randomization')) {
383: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
384: &Apache::lonxml::debug("Attempt reset");
385: }
1.159 albertel 386: %Apache::lonhomework::history=
1.333 albertel 387: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 388: my ($temp)=keys %Apache::lonhomework::history ;
389: &Apache::lonxml::debug("Return message of $temp");
390: } else {
391: %Apache::lonhomework::history=
392: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
393: }
1.353 albertel 394:
1.159 albertel 395: #ignore error conditions
1.67 albertel 396: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 397: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 398: }
399:
400: # -------------------------------------------------------------finalize_storage
401: # Stores away the result has to a student's environment
402: # checks form.grade_ for specific values, other wises stores
403: # to the running users environment
1.285 raeburn 404: # Will increment totals for attempts, students, and corrects
405: # if running user has student role.
1.65 albertel 406: sub finalize_storage {
1.357 albertel 407: my ($given_symb) = @_;
1.159 albertel 408: my $result;
1.289 albertel 409: if (%Apache::lonhomework::results) {
1.323 albertel 410: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
411: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 412: my ($symb,$courseid,$domain,$name) =
1.367 albertel 413: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 414: if ($env{'request.state'} eq 'construct'
415: || $symb eq ''
416: || $Apache::lonhomework::type eq 'practice') {
417: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 418: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 419: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 420: $namespace,'',$domain,$name);
1.159 albertel 421: &Apache::lonxml::debug('Construct Store return message:'.$result);
422: } else {
423: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
424: $symb,$courseid,$domain,$name);
425: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 426: if ($env{'request.role'} =~/^st/) {
427: &store_aggregates($symb,$courseid);
428: }
1.159 albertel 429: }
1.323 albertel 430: } else {
431: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 432: }
1.159 albertel 433: return $result;
1.65 albertel 434: }
1.289 albertel 435: use Data::Dumper;
1.65 albertel 436:
1.285 raeburn 437: # -------------------------------------------------------------store_aggregates
438: # Sends hash of values to be incremented in nohist_resourcetracker.db
439: # for the course. Increments total number of attempts, unique students
440: # and corrects for each part for an instance of a problem, as appropriate.
441: sub store_aggregates {
442: my ($symb,$courseid) = @_;
1.286 albertel 443: my %aggregate;
444: my @parts;
1.288 albertel 445: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
446: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 447: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 448: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 449: push(@parts, $1);
1.285 raeburn 450: }
451: }
1.286 albertel 452: foreach my $part (@parts) {
453: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
454: eq 'APPROX_ANS' ||
455: $Apache::lonhomework::results{'resource.'.$part.'.award'}
456: eq 'EXACT_ANS') {
1.287 albertel 457: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 458: }
1.286 albertel 459: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 460: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 461: } else {
1.293 albertel 462: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 463: if ($last_reset) {
1.293 albertel 464: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 465: $aggregate{$symb."\0".$part."\0users"} = 1;
466: }
467: }
1.285 raeburn 468: }
1.287 albertel 469: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 470: }
1.292 raeburn 471: if (keys (%aggregate) > 0) {
1.289 albertel 472: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 473: $cdomain,$cname);
474: }
475: }
1.289 albertel 476:
1.65 albertel 477: sub checkout_msg {
1.211 albertel 478: my %lt=&Apache::lonlocal::texthash(
479: 'resource'=>'The resource needs to be checked out',
480: '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.',
481: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
482: 'checkout'=>'Check out Exam for Viewing',
483: 'checkout?'=>'Check out Exam?');
1.352 albertel 484: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 485: return (<<ENDCHECKOUT);
1.211 albertel 486: <h2>$lt{'resource'}</h2>
487: <p>$lt{'id_expln'}</p>
488: <font color="red">
489: <p>$lt{'warning'}</p>
1.91 albertel 490: </font>
1.352 albertel 491: <form name="checkout" method="POST" action="$uri">
1.91 albertel 492: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 493: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 494: </form>
495: ENDCHECKOUT
496: }
497:
1.252 albertel 498: sub firstaccess_msg {
1.253 albertel 499: my ($time,$symb)=@_;
500: my ($map)=&Apache::lonnet::decode_symb($symb);
501: my $foldertitle=&Apache::lonnet::gettitle($map);
502: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 503: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 504: return (<<ENDCHECKOUT);
1.253 albertel 505: <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 506: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 507: <input type="hidden" name="markaccess" value="yes" />
508: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
509: </form>
510: ENDCHECKOUT
511: }
512:
1.204 albertel 513: sub init_problem_globals {
514: my ($type)=@_;
515: #initialize globals
1.308 foxr 516: # For problems, we start out in part 0 (outside a <part> tag).
517: # and part 0 is used to describe the main body of the <problem>
518: #
1.204 albertel 519: if ($type eq 'problem') {
520: $Apache::inputtags::part='0';
521: @Apache::inputtags::partlist=('0');
1.266 albertel 522: $Apache::lonhomework::problemstatus=&get_problem_status('0');
523: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 524:
1.266 albertel 525: } elsif ($type eq 'library') {
1.204 albertel 526: $Apache::inputtags::part='';
527: @Apache::inputtags::partlist=();
528: $Apache::lonhomework::problemstatus='';
1.266 albertel 529: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 530:
1.304 albertel 531: } elsif ($type eq 'Task') {
532: $Apache::inputtags::part='0';
533: @Apache::inputtags::partlist=('0');
534: $Apache::lonhomework::problemstatus='';
535: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 536: }
537: @Apache::inputtags::responselist = ();
538: @Apache::inputtags::importlist = ();
539: @Apache::inputtags::previous=();
540: @Apache::inputtags::previous_version=();
541: $Apache::structuretags::printanswer='No';
542: @Apache::structuretags::whileconds=();
543: @Apache::structuretags::whilebody=();
544: @Apache::structuretags::whileline=();
545: $Apache::lonhomework::scantronmode=0;
546: undef($Apache::lonhomework::name);
1.358 albertel 547: undef($Apache::lonhomework::default_type);
548: undef($Apache::lonhomework::type);
1.204 albertel 549: }
550:
551: sub reset_problem_globals {
552: my ($type)=@_;
553: undef(%Apache::lonhomework::history);
554: undef(%Apache::lonhomework::results);
555: undef($Apache::inputtags::part);
1.208 albertel 556: #don't undef this, lonhomework.pm takes care of this, we use this to
557: #detect if we try to do 2 problems in one file
558: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 559: undef($Apache::lonhomework::name);
1.358 albertel 560: undef($Apache::lonhomework::default_type);
561: undef($Apache::lonhomework::type);
562: undef($Apache::lonhomework::scantronmode);
563: undef($Apache::lonhomework::problemstatus);
564: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 565: }
566:
1.241 albertel 567: sub set_problem_state {
1.240 albertel 568: my ($part)=@_;
1.284 albertel 569: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 570: $Apache::lonhomework::history{"resource.$part.solved"}=
571: 'correct_by_student';
572: }
573: }
574:
1.241 albertel 575: sub get_problem_status {
576: my ($part)=@_;
1.267 albertel 577: my $problem_status;
1.284 albertel 578: if ($env{'request.state'} eq 'construct' &&
579: defined($env{'form.problemstatus'})) {
580: $problem_status=$env{'form.problemstatus'};
1.267 albertel 581: } else {
582: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
583: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 584: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 585: }
586: return $problem_status;
587: }
588:
1.9 albertel 589: sub start_problem {
1.326 albertel 590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 591:
1.311 foxr 592: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 593: if (!$Apache::lonxml::metamode) {
594: &Apache::lonxml::startredirection();
595: }
1.311 foxr 596:
1.308 foxr 597: # Problems don't nest and we don't allow more than one <problem> in
598: # a .problem file.
599: #
1.184 albertel 600: if ( $Apache::inputtags::part ne '' ||
601: $Apache::lonhomework::parsing_a_problem) {
602: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 603: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 604: return '';
605: }
1.184 albertel 606:
607: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 608: &init_problem_globals('problem');
1.166 albertel 609:
1.284 albertel 610: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 611: $Apache::lonhomework::scantronmode=1;
612: }
1.161 albertel 613:
1.159 albertel 614: if ($target ne 'analyze') {
1.284 albertel 615: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 616: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 617: if (($env{'request.state'} eq 'construct') &&
618: defined($env{'form.problemtype'})) {
619: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 620: }
1.332 albertel 621: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 622: }
1.164 albertel 623: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 624: my $uri=$env{'request.uri'};
1.159 albertel 625: if ($uri=~/\.(\w+)$/) {
626: $Apache::lonhomework::type=$1;
627: &Apache::lonxml::debug("Using type of $1");
628: } else {
629: $Apache::lonhomework::type='problem';
630: &Apache::lonxml::debug("Using default type, problem, :$uri:");
631: }
1.87 albertel 632: }
1.301 albertel 633: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 634:
1.363 albertel 635: &initialize_storage();
1.366 albertel 636: if ($target eq 'web') {
637: &Apache::lonxml::debug(" grading history ");
638: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
639: }
1.363 albertel 640:
1.159 albertel 641: #added vars to the scripting enviroment
1.213 albertel 642: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 643: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 644: &Apache::run::run($expression,$safeeval);
1.159 albertel 645: my $status;
646: my $accessmsg;
647:
1.343 albertel 648: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 649: my ($result,$form_tag_start);
1.354 albertel 650: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
651: || $target eq 'edit') {
1.350 albertel 652: ($result,$form_tag_start) =
653: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
654: $name);
655: }
656:
1.284 albertel 657: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 658:
659: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
660: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
661: $target eq 'tex') {
662: #handle exam checkout
663: if ($Apache::lonhomework::type eq 'exam') {
664: my $token=
665: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 666: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 667: $token=&Apache::lonxml::maketoken();
668: $Apache::lonhomework::history{"resource.0.outtoken"}=
669: $token;
670: }
1.343 albertel 671: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 672: }
1.284 albertel 673: if ($env{'form.markaccess'}) {
1.252 albertel 674: &Apache::lonnet::set_first_access('map');
675: }
1.159 albertel 676: #handle rand seed in construction space
677: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 678: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 679: if ($env{'request.state'} ne "construct" &&
680: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 681: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
682: $rndseed.'" />'.
683: '<input type="submit" name="resetdata"
1.334 albertel 684: value="'.&mt('New Problem Variation').'" />';
685: if (exists($env{'form.username'})) {
686: $form_tag_start.=
1.164 albertel 687: '<input type="hidden" name="username"
1.284 albertel 688: value="'.$env{'form.username'}.'" />';
1.334 albertel 689: }
1.333 albertel 690: if ($env{'request.role.adv'}) {
1.267 albertel 691: $form_tag_start.=
1.300 albertel 692: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 693: if (defined($env{'form.showallfoils'})) {
1.267 albertel 694: $form_tag_start.='checked="on"';
695: }
1.300 albertel 696: $form_tag_start.= ' />'.&mt(' Show All Foils').
697: '</label>';
1.267 albertel 698: }
699: $form_tag_start.='<hr />';
1.162 albertel 700: }
1.324 albertel 701:
702: ($status,$accessmsg,my $slot_name,my $slot) =
703: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 704: push (@Apache::inputtags::status,$status);
1.324 albertel 705:
1.159 albertel 706: my $expression='$external::datestatus="'.$status.'";';
707: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
708: &Apache::run::run($expression,$safeeval);
709: &Apache::lonxml::debug("Got $status");
1.324 albertel 710:
1.159 albertel 711: if (( $status eq 'CLOSED' ) ||
712: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 713: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 714: ( $status eq 'BANNED') ||
1.216 albertel 715: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 716: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 717: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 718: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
719: $style);
1.159 albertel 720: if ( $target eq "web" ) {
1.343 albertel 721: my $msg;
1.159 albertel 722: if ($status eq 'UNAVAILABLE') {
1.245 albertel 723: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 724: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 725: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 726: }
1.216 albertel 727: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 728: $msg.='The problem '.$accessmsg;
729: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 730: $msg.=&checkout_msg();
1.252 albertel 731: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 732: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 733: } elsif ($status eq 'NOT_IN_A_SLOT') {
734: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 735: }
736: $result.=$msg.'<br />';
737: } elsif ($target eq 'tex') {
1.332 albertel 738: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
739: : '\begin{minipage}{\textwidth}';
740: $result.='\begin{document}\noindent \vskip 1 mm '.
741: $startminipage.'\vskip 0 mm';
1.159 albertel 742: if ($status eq 'UNAVAILABLE') {
1.211 albertel 743: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 744: } else {
1.211 albertel 745: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 746: }
747: }
1.324 albertel 748: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 749: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
750: $style);
1.324 albertel 751: if ($target eq 'web') {
1.375 albertel 752: $result .=
753: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 754: } elsif ($target eq 'grade') {
755: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
756: 'problem');
757: }
1.159 albertel 758: } elsif ($target eq 'web') {
1.360 albertel 759: if ($status eq 'CAN_ANSWER'
760: && $slot_name ne ''
761: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
762: # unproctored slot access, self checkin
763: &Apache::bridgetask::check_in('problem',undef,undef,
764: $slot_name);
765: }
1.368 albertel 766: $result.="\n $form_tag_start \t".
1.227 albertel 767: '<input type="hidden" name="submitted" value="yes" />';
768: # create a page header and exit
1.284 albertel 769: if ($env{'request.state'} eq "construct") {
770: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 771: }
772: # if we are viewing someone else preserve that info
1.284 albertel 773: if (defined $env{'form.grade_symb'}) {
1.227 albertel 774: foreach my $field ('symb','courseid','domain','username') {
775: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 776: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 777: }
778: }
779: } elsif ($target eq 'tex') {
1.319 foxr 780: $result .= 'INSERTTEXFRONTMATTERHERE';
781:
1.99 sakharuk 782: }
1.159 albertel 783: } elsif ($target eq 'edit') {
1.343 albertel 784: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 785: $Apache::lonxml::warnings_error_header=
786: &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 787: my $temp=&Apache::edit::insertlist($target,$token);
788: $result.=$temp;
789: } elsif ($target eq 'modified') {
790: $result=$token->[4];
791: } else {
792: # page_start returned a starting result, delete it if we don't need it
793: $result = '';
1.99 sakharuk 794: }
1.159 albertel 795: return $result;
1.9 albertel 796: }
797:
798: sub end_problem {
1.159 albertel 799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 800: my $result;
1.310 foxr 801:
1.321 albertel 802: if (!$Apache::lonxml::metamode) {
803: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 804: $Apache::lonxml::post_evaluate=0;
1.321 albertel 805: }
1.319 foxr 806:
807: if ($target eq 'tex') {
1.321 albertel 808: # Figure out the front matter and replace the
809: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
810: # this in end_problem because whether or not we display due
811: # dates depends on whether due dates have already been
812: # displayed in the problem parts.
813:
1.319 foxr 814: my $frontmatter = '';
815: my $startminipage = '';
816: if (not $env{'form.problem_split'}=~/yes/) {
817: $startminipage = '\begin{minipage}{\textwidth}';
818: }
819: my $id = $Apache::inputtags::part;
820: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
821: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
822: my @packages = split /,/,$packages;
823: my $allow_print_points = 0;
824: foreach my $partial_key (@packages) {
825: if ($partial_key=~m/^part_0$/) {
826: $allow_print_points=1;
827: }
828: }
829: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
830: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
831: if (lc($env{'course.'.$env{'request.course.id'}.
832: '.disableexampointprint'}) eq 'yes') {
833: $allow_print_points=0;
834: }
835: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
836: 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 ';
837: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
838: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
839:
840: # Figure out what the due date is and if we need to print
841: # it in the problem header. We have been logging the
842: # last due date written to file.
843:
844: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
845: my $duedate = POSIX::strftime("%c",localtime($duetime));
846: my $temp_file;
847: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
848:
849: # Figure out what the last printed due date is or set it
850: # to the epoch if no duedates have been printed.
851:
852: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
853: if (-e $filename) {
854: $temp_file = Apache::File->new($filename);
855: my @due_file = <$temp_file>;
856: $due_file_content = $due_file[$#due_file];
857: chomp $due_file_content;
858: }
859:
860: # We display the due date iff it is not the same as the last
861: # duedate in problem header ($due_file_content), and
862: # none of our parts displayed a duedate.
863: #
864: my $parts_with_displayduedate;
865: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
866: $parts_with_displayduedate =
867: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
868: } else {
869: $parts_with_displayduedate = 0;
870: }
871: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
872: $temp_file = Apache::File->new('>'.$filename);
873: print $temp_file "$duetime\n";
874: if (not $env{'request.symb'} =~ m/\.page_/) {
875: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
876: $frontmatter .= $begin_doc.
877: '\textit{Due date: '.$duedate.'} '.$toc_line;
878: } else {
879: $frontmatter.= $begin_doc.$toc_line;
880: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
881: }
882: } else {
883: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
884: }
885: } else {
886: if (not $env{'request.symb'} =~ m/\.page_/) {
887: $frontmatter .= $begin_doc.$toc_line;
888: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
889: } else {
890: $frontmatter .= '\vskip 1mm \\\\\\\\';
891: }
892: }
893: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
894: }
895:
1.159 albertel 896: my $status=$Apache::inputtags::status['-1'];
897: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
898: $target eq 'tex') {
1.249 albertel 899: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 900: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 901: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
902: &Apache::inputtags::grade;
1.324 albertel 903: } elsif ($status eq 'NEEDS_CHECKIN') {
904: # no need to grade, and don't want to hide data
1.249 albertel 905: } else {
906: # move any submission data to .hidden
907: &Apache::inputtags::hidealldata($Apache::inputtags::part);
908: }
1.159 albertel 909: } elsif ( ($target eq 'web' || $target eq 'tex') &&
910: $Apache::inputtags::part eq '0' &&
1.252 albertel 911: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 912: # if part is zero, no <part>s existed, so we need show the current
913: # grading status
914: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
915: $result.= $gradestatus;
916: }
917: if (
1.284 albertel 918: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 919: ($target eq 'answer') || ($target eq 'tex')
920: ) {
1.227 albertel 921: if ($target ne 'tex' &&
1.284 albertel 922: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 923: $result.="</form>";
1.348 albertel 924: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 925: }
926: if ($target eq 'web') {
1.346 albertel 927: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 928: } elsif ($target eq 'tex') {
1.178 sakharuk 929: my $endminipage = '';
1.284 albertel 930: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 931: $endminipage = '\end{minipage}';
932: }
1.284 albertel 933: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 934: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 935: } else {
1.262 sakharuk 936: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 937: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 938: $result .= $endminipage.'\end{document} ';
939: } else {
940: $result .= '';
941: }
1.159 albertel 942: }
943: }
944: }
945: if ($target eq 'grade') {
946: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
947: &finalize_storage();
948: }
1.284 albertel 949: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
950: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 951: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 952: # normally we get it from above, but in CSTR
1.172 albertel 953: # we always show answer mode too.
1.159 albertel 954: }
955: } elsif ($target eq 'meta') {
956: if ($Apache::inputtags::part eq '0') {
1.179 albertel 957: @Apache::inputtags::response=();
1.159 albertel 958: $result=&Apache::response::mandatory_part_meta;
959: }
1.215 albertel 960: $result.=&Apache::response::meta_part_order();
1.258 albertel 961: $result.=&Apache::response::meta_response_order();
1.159 albertel 962: } elsif ($target eq 'edit') {
963: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 964: $result .= &problem_edit_footer();
1.320 albertel 965: } elsif ($target eq 'modified') {
966: $result .= $token->[2];
1.159 albertel 967: }
1.155 albertel 968:
1.284 albertel 969: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 970: &Apache::inputtags::check_for_duplicate_ids();
971: }
1.204 albertel 972:
973: &reset_problem_globals('problem');
1.159 albertel 974:
975: return $result;
1.48 albertel 976: }
977:
1.108 albertel 978:
1.48 albertel 979: sub start_library {
1.159 albertel 980: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 981: my ($result,$form_tag_start);
1.371 albertel 982: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 983: &init_problem_globals('library');
984: $Apache::lonhomework::type='problem';
985: }
1.159 albertel 986: if ($target eq 'edit') {
1.343 albertel 987: ($result,$form_tag_start)=
988: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
989: 'Edit');
990: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 991: my $temp=&Apache::edit::insertlist($target,$token);
992: $result.=$temp;
993: } elsif ($target eq 'modified') {
994: $result=$token->[4];
1.340 albertel 995: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 996: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 997: && $env{'request.state'} eq "construct" ) {
1.159 albertel 998: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 999: ($result,$form_tag_start)=
1000: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1001: $name);
1.159 albertel 1002: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1003: $result.=" \n $form_tag_start".
1.159 albertel 1004: '<input type="hidden" name="submitted" value="yes" />';
1005: $result.=&problem_web_to_edit_header($rndseed);
1006: }
1007: return $result;
1.48 albertel 1008: }
1009:
1010: sub end_library {
1.159 albertel 1011: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1012: my $result='';
1013: if ($target eq 'edit') {
1014: $result=&problem_edit_footer();
1.371 albertel 1015: } elsif ($target eq 'web'
1016: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1017: && $env{'request.state'} eq "construct") {
1.349 albertel 1018: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1019: }
1.371 albertel 1020: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1021: &reset_problem_globals('library');
1022: }
1.159 albertel 1023: return $result;
1.197 www 1024: }
1025:
1026: sub start_definetag {
1.326 albertel 1027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1028:
1029: my $result;
1030:
1031: my $name = $token->[2]->{'name'};
1.326 albertel 1032: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1033: if ($name=~/^\//) {
1034: $result=
1035: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1036: } else {
1037: $result=
1038: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1039: }
1040: $skip=~s/\</\<\;/gs;
1041: $skip=~s/\>/\>\;/gs;
1042: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1043: return $result;
1044: }
1045:
1046: sub end_definetag {
1047: return '';
1.1 albertel 1048: }
1049:
1050: sub start_block {
1.201 albertel 1051: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1052:
1053: my $result;
1.1 albertel 1054:
1.339 albertel 1055: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1056: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1057: my $code = $token->[2]->{'condition'};
1.201 albertel 1058: if (defined($code)) {
1.137 albertel 1059: if (!$Apache::lonxml::default_homework_loaded) {
1060: &Apache::lonxml::default_homework_load($safeeval);
1061: }
1.131 albertel 1062: $result = &Apache::run::run($code,$safeeval);
1063: &Apache::lonxml::debug("block :$code: returned :$result:");
1064: } else {
1065: $result='1';
1066: }
1067: if ( ! $result ) {
1.201 albertel 1068: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1069: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1070: }
1071: $result='';
1072: } elsif ($target eq 'edit') {
1073: $result .=&Apache::edit::tag_start($target,$token);
1074: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1075: $token,40);
1076: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1077: } elsif ($target eq 'modified') {
1078: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1079: $safeeval,'condition');
1080: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1081: }
1.131 albertel 1082: return $result;
1.1 albertel 1083: }
1084:
1085: sub end_block {
1.167 www 1086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1087: my $result;
1088: if ($target eq "edit") {
1089: $result.= &Apache::edit::tag_end($target,$token,'');
1090: }
1091: return $result;
1092: }
1093:
1094: sub start_languageblock {
1.201 albertel 1095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1096:
1097: my $result;
1098:
1.339 albertel 1099: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1100: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1101: my $include = $token->[2]->{'include'};
1102: my $exclude = $token->[2]->{'exclude'};
1103: my %languages=&Apache::loncommon::display_languages();
1104: $result='1';
1105: if ($include) {
1106: $result='';
1107: foreach (split(/\,/,$include)) {
1108: if ($languages{$_}) { $result='1'; }
1109: }
1110: }
1111: if ($exclude) {
1112: foreach (split(/\,/,$exclude)) {
1113: if ($languages{$_}) { $result='0'; }
1114: }
1115: }
1116: if ( ! $result ) {
1117: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1118: $style);
1119: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1120: }
1121: $result='';
1.167 www 1122: } elsif ($target eq 'edit') {
1123: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1124: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1125: $token,40);
1.211 albertel 1126: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1127: $token,40);
1128: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1129: } elsif ($target eq 'modified') {
1130: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1131: $safeeval,'include',
1132: 'exclude');
1.167 www 1133: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1134: }
1135: return $result;
1136: }
1137:
1138: sub end_languageblock {
1.170 www 1139: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1140: my $result;
1.201 albertel 1141: if ($target eq "edit") {
1.170 www 1142: $result.= &Apache::edit::tag_end($target,$token,'');
1143: }
1144: return $result;
1145: }
1146:
1147: sub start_instructorcomment {
1.201 albertel 1148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1149:
1150: my $result;
1151:
1.339 albertel 1152: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1153: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1154: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1155: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1156: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1157: $parser,$style);
1.170 www 1158: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1159: }
1160: $result='';
1161: } elsif ($target eq 'edit') {
1162: $result .=&Apache::edit::tag_start($target,$token);
1163: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1164: }
1165: return $result;
1166: }
1167:
1168: sub end_instructorcomment {
1.159 albertel 1169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1170: my $result;
1171: if ($target eq "edit") {
1172: $result.= &Apache::edit::tag_end($target,$token,'');
1173: }
1174: return $result;
1.4 tsai 1175: }
1176:
1177: sub start_while {
1.326 albertel 1178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1179:
1.160 albertel 1180: my $result;
1.339 albertel 1181: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1182: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1183: my $code = $token->[2]->{'condition'};
1.4 tsai 1184:
1.160 albertel 1185: push( @Apache::structuretags::whileconds, $code);
1186: if (!$Apache::lonxml::default_homework_loaded) {
1187: &Apache::lonxml::default_homework_load($safeeval);
1188: }
1189: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1190: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1191: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1192: push( @Apache::structuretags::whileline, $token->[5]);
1193: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1194: if ( $result ) {
1195: &Apache::lonxml::newparser($parser,\$bodytext);
1196: }
1197: } elsif ($target eq 'edit') {
1198: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1199: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1200: $token,40);
1201: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1202: } elsif ($target eq 'modified') {
1203: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1204: $safeeval,'condition');
1205: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1206: }
1.160 albertel 1207: return $result;
1.4 tsai 1208: }
1209:
1210: sub end_while {
1.159 albertel 1211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1212: my $result;
1213:
1.339 albertel 1214: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1215: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1216: my $code = pop(@Apache::structuretags::whileconds);
1217: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1218: my $line = pop(@Apache::structuretags::whileline);
1219: my $return = &Apache::run::run($code,$safeeval);
1220: my $starttime=time;
1221: my $error=0;
1222: while ($return) {
1223: if (time-$starttime >
1224: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1225: $return = 0; $error=1; next;
1.161 albertel 1226: }
1227: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 ! albertel 1228: if ($target eq 'grade' || $target eq 'answer' ||
! 1229: $target eq 'analyze') {
! 1230: # grade/answer/analyze should produce no output but if we
! 1231: # are redirecting, the redirecter should know what to do
! 1232: # with the output
! 1233: if (!$Apache::lonxml::redirection) { undef($result); }
! 1234: }
1.161 albertel 1235: $return = &Apache::run::run($code,$safeeval);
1236: }
1237: if ($error) {
1.270 albertel 1238: &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 1239: }
1240: } elsif ($target eq "edit") {
1241: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1242: }
1.160 albertel 1243: return $result;
1.1 albertel 1244: }
1.6 tsai 1245:
1.160 albertel 1246: # <randomlist show="1">
1.6 tsai 1247: # <tag1>..</tag1>
1248: # <tag2>..</tag2>
1249: # <tag3>..</tag3>
1.160 albertel 1250: # ...
1.6 tsai 1251: # </randomlist>
1252: sub start_randomlist {
1.326 albertel 1253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1254: my $result;
1.339 albertel 1255: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1256: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1257: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1258: my $b_parser= HTML::LCParser->new(\$body);
1259: $b_parser->xml_mode(1);
1260: $b_parser->marked_sections(1);
1.159 albertel 1261: my $b_tok;
1262: my @randomlist;
1263: my $list_item;
1264: while($b_tok = $b_parser->get_token() ) {
1265: if($b_tok->[0] eq 'S') { # start tag
1266: # get content of the tag until matching end tag
1267: # get all text upto the matching tag
1268: # and push the content into @randomlist
1269: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1270: $b_parser);
1271: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1272: push(@randomlist,$list_item);
1273: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1274: # $list_item</b>";
1275: }
1276: if($b_tok->[0] eq 'T') { # text
1277: # what to do with text in between tags?
1278: # print "<b>TEXT $b_tok->[1]</b><br />";
1279: }
1280: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1281: # print "<b>END-TAG $b_tok->[1]</b><br />";
1282: # }
1283: }
1.303 albertel 1284: if (@randomlist) {
1285: my @idx_arr = (0 .. $#randomlist);
1286: &Apache::structuretags::shuffle(\@idx_arr);
1287: my $bodytext = '';
1288: my $show=$#randomlist;
1289: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1290: $showarg--;
1291: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1292: for(0 .. $show) {
1293: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1294: }
1295: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1296: }
1297: } elsif ($target eq 'edit' ) {
1298: $result .=&Apache::edit::tag_start($target,$token);
1299: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1300: $token,5);
1301: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1302: } elsif ($target eq 'modified' ) {
1303: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1304: $safeeval,'show');
1305: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1306: }
1307: return $result;
1.7 tsai 1308: }
1309:
1310: sub shuffle {
1311: my $a=shift;
1312: my $i;
1.303 albertel 1313: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1314: &Apache::response::pushrandomnumber();
1.159 albertel 1315: for($i=@$a;--$i;) {
1316: my $j=int(&Math::Random::random_uniform() * ($i+1));
1317: next if $i == $j;
1318: @$a[$i,$j] = @$a[$j,$i];
1319: }
1.251 albertel 1320: &Apache::response::poprandomnumber();
1.7 tsai 1321: }
1.6 tsai 1322: }
1323:
1324: sub end_randomlist {
1.159 albertel 1325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1326: my $result;
1327: if ($target eq 'edit' ) {
1328: $result=&Apache::edit::tag_end($target,$token,
1329: 'End Randomly Parsed Block');
1330: }
1331: return $result;
1.6 tsai 1332: }
1333:
1.283 albertel 1334: sub ordered_show_check {
1335: my $last_part=$Apache::inputtags::partlist[-2];
1336: my $in_order=
1337: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1338: my $in_order_show=1;
1339: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1340: $in_order_show=&Apache::response::check_status($last_part);
1341: }
1342: return $in_order_show;
1343: }
1344:
1.11 albertel 1345: sub start_part {
1.326 albertel 1346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1347: if (!$Apache::lonxml::metamode) {
1348: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1349: # duedates.
1350: }
1.159 albertel 1351: my $result='';
1352: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1353: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1354: $Apache::inputtags::part=$id;
1.177 albertel 1355: push(@Apache::inputtags::partlist,$id);
1356: @Apache::inputtags::response=();
1.159 albertel 1357: @Apache::inputtags::previous=();
1358: @Apache::inputtags::previous_version=();
1.241 albertel 1359: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1360: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1361: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1362: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1363: my $in_order_show=&ordered_show_check();
1.214 albertel 1364: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1365: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1366: &Apache::run::run($expression,$safeeval);
1.159 albertel 1367:
1368: if ($target eq 'meta') {
1.224 www 1369: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1370: return &Apache::response::mandatory_part_meta.
1371: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1372: } elsif ($target eq 'web' || $target eq 'grade' ||
1373: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1374: if ($hidden || !$in_order_show) {
1.326 albertel 1375: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1376: } else {
1377: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1378: push (@Apache::inputtags::status,$status);
1379: my $expression='$external::datestatus="'.$status.'";';
1380: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1381: &Apache::run::run($expression,$safeeval);
1.284 albertel 1382: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1383: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1384: }
1.216 albertel 1385: if (( $status eq 'CLOSED' ) ||
1386: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1387: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1388: ( $status eq 'BANNED') ||
1389: ( $status eq 'UNAVAILABLE') ||
1390: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1391: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1392: $style);
1.159 albertel 1393: if ( $target eq "web" ) {
1.211 albertel 1394: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1395: } elsif ( $target eq 'tex' ) {
1.284 albertel 1396: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1397: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1398: } else {
1.211 albertel 1399: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1400: }
1.159 albertel 1401: }
1402: } else {
1403: if ($target eq 'tex') {
1.284 albertel 1404: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1405: if ($$tagstack[-2] eq 'td') {
1406: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1407: } else {
1408: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1409: }
1.195 sakharuk 1410: }
1.159 albertel 1411: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1412: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1413: my @allkeys = split /,/,$allkeys;
1414: my $allow_print_points = 0;
1415: foreach my $partial_key (@allkeys) {
1.230 albertel 1416: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1417: if ($1 ne '0') {$allow_print_points=1;}
1418: }
1419: }
1.275 albertel 1420: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1421: if (defined($maxtries) && $maxtries < 0) {
1422: $allow_print_points=0;
1423: }
1.302 albertel 1424: if (lc($env{'course.'.$env{'request.course.id'}.
1425: '.disableexampointprint'}) eq 'yes') {
1426: $allow_print_points=0;
1427: }
1.222 sakharuk 1428: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1429: } elsif ($target eq 'web') {
1.356 www 1430: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1431: }
1432: }
1433: }
1434: } elsif ($target eq 'edit') {
1435: $result.=&Apache::edit::tag_start($target,$token);
1436: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1437: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1438: ' '.
1439: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1440: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1441: } elsif ($target eq 'modified') {
1442: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1443: $safeeval,'id','display');
1.159 albertel 1444: if ($constructtag) {
1.225 albertel 1445: #limiting ids to only letters numbers, and space
1.224 www 1446: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1447: $result = &Apache::edit::rebuild_tag($token);
1448: }
1449: }
1450: return $result;
1.11 albertel 1451: }
1452:
1453: sub end_part {
1.159 albertel 1454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1455: &Apache::lonxml::debug("in end_part $target ");
1456: my $status=$Apache::inputtags::status['-1'];
1457: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1458: my $in_order_show=&ordered_show_check();
1.321 albertel 1459: my $result;
1460: if (!$Apache::lonxml::metamode) {
1461: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1462: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1463: }
1.312 albertel 1464: if ($target eq 'grade') {
1.249 albertel 1465: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1466: !$hidden && $in_order_show) {
1.311 foxr 1467: $result.=&Apache::inputtags::grade;
1.249 albertel 1468: } else {
1469: # move any submission data to .hidden
1470: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1471: }
1.283 albertel 1472: } elsif (($target eq 'web' || $target eq 'tex') &&
1473: !$hidden && $in_order_show) {
1.159 albertel 1474: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1475: $target);
1.212 albertel 1476: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1477: $gradestatus='';
1478: }
1.311 foxr 1479: $result.=$gradestatus;
1.265 sakharuk 1480: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1481: } elsif ($target eq 'edit') {
1.311 foxr 1482: $result.=&Apache::edit::end_table();
1.322 albertel 1483: } elsif ($target eq 'modified') {
1484: $result .= $token->[2];
1.159 albertel 1485: }
1486: pop @Apache::inputtags::status;
1487: $Apache::inputtags::part='';
1.295 albertel 1488: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1489: return $result;
1.11 albertel 1490: }
1.1 albertel 1491:
1.25 albertel 1492: sub start_preduedate {
1.326 albertel 1493: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1494: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1495: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1496: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1497: if (!$Apache::lonhomework::scantronmode &&
1498: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1499: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1500: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1501: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1502: }
1.24 albertel 1503: }
1.159 albertel 1504: return '';
1.24 albertel 1505: }
1506:
1.25 albertel 1507: sub end_preduedate {
1.159 albertel 1508: return '';
1.24 albertel 1509: }
1510:
1.369 foxr 1511: # In all the modes where <postanswerdate> text is
1512: # displayable, all we do is eat up the text between the start/stop
1513: # tags if the conditions are not right to display it.
1.25 albertel 1514: sub start_postanswerdate {
1.326 albertel 1515: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1516: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1517: &Apache::lonnet::allowed('pav',
1518: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1519: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1520: $target eq 'tex' ) {
1.300 albertel 1521: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1522: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1523: (($target eq 'tex') && !$pav)) {
1.326 albertel 1524: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1525: }
1526: }
1527: return '';
1.24 albertel 1528: }
1529:
1.25 albertel 1530: sub end_postanswerdate {
1.159 albertel 1531: return '';
1.24 albertel 1532: }
1533:
1.25 albertel 1534: sub start_notsolved {
1.326 albertel 1535: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1536: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1537: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1538: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1539: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1540: if ($gradestatus =~ /^correct/ &&
1541: &Apache::response::show_answer()) {
1.159 albertel 1542: &Apache::lonxml::debug("skipping");
1.326 albertel 1543: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1544: }
1.24 albertel 1545: }
1.159 albertel 1546: return '';
1.24 albertel 1547: }
1548:
1.25 albertel 1549: sub end_notsolved {
1.159 albertel 1550: return '';
1.24 albertel 1551: }
1552:
1553: sub start_solved {
1.326 albertel 1554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1555: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1556: $target eq 'tex') {
1557: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1558: if ($gradestatus !~ /^correct/ ||
1559: !&Apache::response::show_answer()) {
1.326 albertel 1560: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1561: }
1.24 albertel 1562: }
1.159 albertel 1563: return '';
1.24 albertel 1564: }
1565:
1566: sub end_solved {
1.248 albertel 1567: return '';
1568: }
1569:
1570: sub start_problemtype {
1.326 albertel 1571: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1572: my $result;
1.339 albertel 1573: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1574: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1575: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1576: if (!defined($mode)) { $mode='show'; }
1577: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1578: my $found=0;
1579: foreach my $type (split(',',$for)) {
1580: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1581: }
1582: if ($mode eq 'show' && !$found) {
1.326 albertel 1583: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1584: }
1585: if ($mode eq 'hide' && $found) {
1.326 albertel 1586: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1587: }
1588: } elsif ($target eq 'edit') {
1589: $result .=&Apache::edit::tag_start($target,$token);
1590: $result.=&Apache::edit::select_arg('Mode:','mode',
1591: [['show','Show'],
1592: ['hide','Hide']]
1593: ,$token);
1594: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1595: [ ['exam','Exam/Quiz Problem'],
1596: ['survey','Survey'],
1597: ['problem','Homework Problem'] ]
1598: ,$token);
1599: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1600: } elsif ($target eq 'modified') {
1601: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1602: $safeeval,'mode','for');
1603: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1604: }
1605: return $result;
1606: }
1607:
1608: sub end_problemtype {
1.159 albertel 1609: return '';
1.24 albertel 1610: }
1.34 albertel 1611:
1612: sub start_startouttext {
1.159 albertel 1613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1614: my @result=(''.'');
1615: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1616: return (@result);
1.34 albertel 1617: }
1.159 albertel 1618:
1.34 albertel 1619: sub end_startouttext {
1.326 albertel 1620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1621: my $result='';
1622: my $text='';
1623:
1624: if ($target eq 'edit') {
1.326 albertel 1625: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1626: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1627: <td>".&mt('Delete:').
1.159 albertel 1628: &Apache::edit::deletelist($target,$token)
1629: ."</td>
1.42 albertel 1630: <td>".
1.159 albertel 1631: &Apache::edit::insertlist($target,$token).
1.362 albertel 1632: '</td><td align="right" valign="top">' .
1633: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1634: &Apache::edit::end_row().
1.362 albertel 1635: &Apache::edit::start_spanning_row()."\n".
1.255 www 1636: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1637: }
1638: if ($target eq 'modified') {
1.219 albertel 1639: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1640: }
1641: if ($target eq 'tex') {
1642: $result .= '\noindent ';
1643: }
1644: return $result;
1.34 albertel 1645: }
1.159 albertel 1646:
1.34 albertel 1647: sub start_endouttext {
1.159 albertel 1648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1649: my $result='';
1650: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1651: if ($target eq "modified") {
1652: $result='<endouttext />'.
1.377 albertel 1653: &Apache::edit::handle_insertafter('startouttext');
1654: }
1.159 albertel 1655: return $result;
1.34 albertel 1656: }
1.159 albertel 1657:
1.34 albertel 1658: sub end_endouttext {
1.159 albertel 1659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1660: my @result=('','');
1661: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1662: return (@result);
1.34 albertel 1663: }
1.159 albertel 1664:
1.45 albertel 1665: sub delete_startouttext {
1.326 albertel 1666: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1667: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1668: my $text=$$parser['-1']->get_text("/endouttext");
1669: my $ntoken=$$parser['-1']->get_token();
1670: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1671: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1672: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1673: # they did the last time round
1674: &Apache::lonxml::increasedepth($ntoken);
1675: &Apache::lonxml::decreasedepth($ntoken);
1676: return 1;
1.193 www 1677: }
1678:
1679: sub start_simpleeditbutton {
1680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1681: my $result='';
1.284 albertel 1682: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1683: ($target eq 'web') &&
1.330 albertel 1684: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1685: my $url=$env{'request.noversionuri'};
1.193 www 1686: $url=~s/\?.*$//;
1.367 albertel 1687: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1688: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1689: '<a href="'.$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 1690: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1691: }
1692: return $result;
1693: }
1694:
1695: sub end_simpleeditbutton {
1696: return '';
1.45 albertel 1697: }
1.34 albertel 1698:
1.1 albertel 1699: 1;
1700: __END__
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