Annotation of loncom/homework/structuretags.pm, revision 1.376
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.376 ! albertel 4: # $Id: structuretags.pm,v 1.375 2007/04/06 21:22:24 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:
1.336 albertel 106: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 107: if ($css_href =~ /\S/) {
108: &Apache::lonxml::extlink($css_href);
1.343 albertel 109: $extra_head .=
1.335 albertel 110: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
111: }
1.327 albertel 112: if ($target eq 'edit') {
1.343 albertel 113: $extra_head.=&Apache::edit::js_change_detection().
114: "<script type=\"text/javascript\">\n".
115: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
116: &Apache::loncommon::browser_and_searcher_javascript().
117: "\n</script>\n";
118: }
1.159 albertel 119: }
1.343 albertel 120:
1.344 albertel 121: if (defined($found{'body'})) {
122: $body_args{'skip_phases'}{'body'}=1;
123: } elsif (!defined($found{'body'})
124: && $env{'request.state'} eq 'construct') {
1.343 albertel 125: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 126: # no extra args to bodytag
1.297 albertel 127: }
1.272 albertel 128: } elsif (!defined($found{'body'})) {
1.343 albertel 129: my %add_entries;
1.159 albertel 130: my $background=&Apache::lonxml::get_param('background',$parstack,
131: $safeeval);
1.343 albertel 132: if ($background ne '' ) {
133: $add_entries{'background'} = $background;
134: }
1.344 albertel 135:
1.290 albertel 136: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
137: $safeeval);
1.344 albertel 138: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
139:
140: $body_args{'bgcolor'} = $bgcolor;
141: $body_args{'no_title'} = 1;
142: $body_args{'force_register'} = 1;
143: $body_args{'add_entries'} = \%add_entries;
144: }
1.365 albertel 145: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 146: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
147: \%body_args);
148:
149: if (!defined($found{'body'})
150: && $env{'request.state'} ne 'construct'
151: && ($target eq 'web' || $target eq 'webgrade')) {
152:
1.367 albertel 153: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 154: if ($symb eq '' && !$publicuser) {
155: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
156: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
157: $page_start .= $help;
1.159 albertel 158: }
1.344 albertel 159: }
160:
161: if (!defined($found{'body'})) {
1.343 albertel 162: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 163: }
1.344 albertel 164:
1.159 albertel 165: my $form_tag_start;
166: if (!defined($found{'form'})) {
1.337 albertel 167: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 168: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 169: $form_tag_start.=$uri.'" ';
170: if ($target eq 'edit') {
171: $form_tag_start.=&Apache::edit::form_change_detection();
172: }
1.368 albertel 173: $form_tag_start.='>'."\n";
1.355 albertel 174:
175: my $symb=&Apache::lonnet::symbread();
176: if ($symb =~ /\S/) {
177: $symb=
178: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
179: $form_tag_start.=
1.368 albertel 180: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 181: }
1.159 albertel 182: }
1.343 albertel 183: return ($page_start,$form_tag_start);
1.105 albertel 184: }
185:
1.141 matthew 186: #use Time::HiRes();
1.105 albertel 187: sub get_resource_name {
1.159 albertel 188: my ($parstack,$safeeval)=@_;
1.204 albertel 189: if (defined($Apache::lonhomework::name)) {
190: return $Apache::lonhomework::name;
191: }
1.367 albertel 192: my ($symb)=&Apache::lonnet::whichuser();
1.279 albertel 193: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 194: if ($name eq '') {
195: $name=&Apache::lonnet::EXT('resource.title');
196: if ($name eq 'con_lost') { $name = ''; }
197: }
1.204 albertel 198: if ($name!~/\S+/) {
1.284 albertel 199: $name=$env{'request.uri'};
1.205 albertel 200: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 201: }
1.159 albertel 202: $Apache::lonhomework::name=$name;
203: return $name;
1.105 albertel 204: }
205:
206: sub setup_rndseed {
1.159 albertel 207: my ($safeeval)=@_;
208: my $rndseed;
1.367 albertel 209: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 210: if ($env{'request.state'} eq "construct"
211: || $symb eq ''
212: || $Apache::lonhomework::type eq 'practice'
213: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 214: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 215: ['rndseed']);
1.284 albertel 216: $rndseed=$env{'form.rndseed'};
1.159 albertel 217: if (!$rndseed) {
1.162 albertel 218: $rndseed=$Apache::lonhomework::history{'rndseed'};
219: if (!$rndseed) {
220: $rndseed=time;
221: }
1.284 albertel 222: $env{'form.rndseed'}=$rndseed;
1.162 albertel 223: }
1.374 albertel 224: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
225: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 226: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 227: srand(time);
228: $rndseed=int(rand(2100000000));
1.284 albertel 229: $env{'form.rndseed'}=$rndseed;
230: delete($env{'form.resetdata'});
231: delete($env{'form.newrandomization'});
1.159 albertel 232: }
1.187 albertel 233: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 234: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 235: }
1.247 albertel 236: if ($Apache::lonhomework::history{'resource.CODE'}) {
237: $rndseed=&Apache::lonnet::rndseed();
238: }
1.221 albertel 239: if ($safeeval) {
240: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 241: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 242: }
1.159 albertel 243: }
244: return $rndseed;
1.105 albertel 245: }
246:
1.268 albertel 247: sub remember_problem_state {
248: return '
1.284 albertel 249: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
250: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
251: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 252: }
253:
1.105 albertel 254: sub problem_edit_header {
1.268 albertel 255: return '<input type="hidden" name="submitted" value="edit" />'.
256: &Apache::structuretags::remember_problem_state().'
1.210 albertel 257: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 258: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 259: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 260: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
261: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
262: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 263: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 264: .'</td></tr></table>'.
1.282 albertel 265: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 266: }
267:
268: sub problem_edit_footer {
1.210 albertel 269: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 270: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 271: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 272: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 273: }
274:
1.235 albertel 275: sub option {
276: my ($value,$name) = @_;
277: my $result ="<option value='".$value."' ";
1.284 albertel 278: if ($env{'form.'.$name} eq $value) {
1.235 albertel 279: $result.=" selected='on' ";
280: }
281: $result.='>';
282: return $result;
283: }
284:
1.105 albertel 285: sub problem_web_to_edit_header {
1.159 albertel 286: my ($rndseed)=@_;
1.313 albertel 287: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 288: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 289: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 290: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
291: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 292: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 293: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 294: $rndseed.'"
1.270 albertel 295: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 296: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 297: my $show_all_foils_text =
298: ($Apache::lonhomework::parsing_a_task) ?
299: &mt(' Show All Instances')
300: : &mt(' Show All Foils');
301:
1.284 albertel 302: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.371 albertel 303: $result.= ' />'.$show_all_foils_text.'</label>'.
1.228 www 304: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 305: '<hr />';
1.313 albertel 306: if (!$Apache::lonhomework::parsing_a_task) {
307: $result.="
1.235 albertel 308: <nobr>
309: Problem Status:
310: <select name='problemstate'>
1.270 albertel 311: <option value=''></option>
1.235 albertel 312: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
313: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
314: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
315: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
316: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
317: </select>
318: </nobr>
319: <nobr>
320: Problem Type:
321: <select name='problemtype'>
1.270 albertel 322: <option value=''></option>
1.242 albertel 323: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
324: ".&option('problem','problemtype').&mt("Homework problem")."</option>
325: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 326: </select>
327: </nobr>
328: <nobr>
329: Feedback Mode:
330: <select name='problemstatus'>
331: <option value=''></option>
1.242 albertel 332: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
333: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 334: </select>
335: </nobr>
1.242 albertel 336: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 337: <hr />";
1.313 albertel 338: my $numtoanalyze=$env{'form.numtoanalyze'};
339: if (!$numtoanalyze) { $numtoanalyze=20; }
340: $result.= '<input type="submit" name="problemmode" value='.
341: &mt('"Calculate answers').'" /> for
1.136 albertel 342: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 343: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
344: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 345: '',undef,undef,300).
1.210 albertel 346: '<hr />';
1.376 ! albertel 347: } elsif ($Apache::lonhomework::parsing_a_task) {
! 348: $result.="
! 349: <nobr>
! 350: Problem Status:
! 351: <select name='problemstate'>
! 352: <option value=''></option>
! 353: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
! 354: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
! 355: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
! 356: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
! 357: </select>
! 358: </nobr>
! 359: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
! 360: <hr />";
1.313 albertel 361: }
1.159 albertel 362: return $result;
1.48 albertel 363: }
364:
1.65 albertel 365: sub initialize_storage {
1.357 albertel 366: my ($given_symb) = @_;
1.353 albertel 367: undef(%Apache::lonhomework::results);
368: undef(%Apache::lonhomework::history);
1.357 albertel 369: my ($symb,$courseid,$domain,$name) =
1.367 albertel 370: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 371:
372: # anonymous users (CODEd exams) have no data
373: if ($name eq 'anonymous'
374: && !defined($domain)) {
375: return;
376: }
377:
1.333 albertel 378: if ($env{'request.state'} eq 'construct'
379: || $symb eq ''
380: || $Apache::lonhomework::type eq 'practice') {
381:
382: my $namespace = $symb || $env{'request.uri'};
383: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 384: ($env{'form.resetdata'} eq &mt('New Problem Variation')
385: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 386: $env{'form.newrandomization'} eq &mt('New Randomization')) {
387: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
388: &Apache::lonxml::debug("Attempt reset");
389: }
1.159 albertel 390: %Apache::lonhomework::history=
1.333 albertel 391: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 392: my ($temp)=keys %Apache::lonhomework::history ;
393: &Apache::lonxml::debug("Return message of $temp");
394: } else {
395: %Apache::lonhomework::history=
396: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
397: }
1.353 albertel 398:
1.159 albertel 399: #ignore error conditions
1.67 albertel 400: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 401: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 402: }
403:
404: # -------------------------------------------------------------finalize_storage
405: # Stores away the result has to a student's environment
406: # checks form.grade_ for specific values, other wises stores
407: # to the running users environment
1.285 raeburn 408: # Will increment totals for attempts, students, and corrects
409: # if running user has student role.
1.65 albertel 410: sub finalize_storage {
1.357 albertel 411: my ($given_symb) = @_;
1.159 albertel 412: my $result;
1.289 albertel 413: if (%Apache::lonhomework::results) {
1.323 albertel 414: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
415: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 416: my ($symb,$courseid,$domain,$name) =
1.367 albertel 417: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 418: if ($env{'request.state'} eq 'construct'
419: || $symb eq ''
420: || $Apache::lonhomework::type eq 'practice') {
421: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 422: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 423: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 424: $namespace,'',$domain,$name);
1.159 albertel 425: &Apache::lonxml::debug('Construct Store return message:'.$result);
426: } else {
427: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
428: $symb,$courseid,$domain,$name);
429: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 430: if ($env{'request.role'} =~/^st/) {
431: &store_aggregates($symb,$courseid);
432: }
1.159 albertel 433: }
1.323 albertel 434: } else {
435: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 436: }
1.159 albertel 437: return $result;
1.65 albertel 438: }
1.289 albertel 439: use Data::Dumper;
1.65 albertel 440:
1.285 raeburn 441: # -------------------------------------------------------------store_aggregates
442: # Sends hash of values to be incremented in nohist_resourcetracker.db
443: # for the course. Increments total number of attempts, unique students
444: # and corrects for each part for an instance of a problem, as appropriate.
445: sub store_aggregates {
446: my ($symb,$courseid) = @_;
1.286 albertel 447: my %aggregate;
448: my @parts;
1.288 albertel 449: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
450: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 451: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 452: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 453: push(@parts, $1);
1.285 raeburn 454: }
455: }
1.286 albertel 456: foreach my $part (@parts) {
457: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
458: eq 'APPROX_ANS' ||
459: $Apache::lonhomework::results{'resource.'.$part.'.award'}
460: eq 'EXACT_ANS') {
1.287 albertel 461: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 462: }
1.286 albertel 463: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 464: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 465: } else {
1.293 albertel 466: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 467: if ($last_reset) {
1.293 albertel 468: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 469: $aggregate{$symb."\0".$part."\0users"} = 1;
470: }
471: }
1.285 raeburn 472: }
1.287 albertel 473: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 474: }
1.292 raeburn 475: if (keys (%aggregate) > 0) {
1.289 albertel 476: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 477: $cdomain,$cname);
478: }
479: }
1.289 albertel 480:
1.65 albertel 481: sub checkout_msg {
1.211 albertel 482: my %lt=&Apache::lonlocal::texthash(
483: 'resource'=>'The resource needs to be checked out',
484: '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.',
485: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
486: 'checkout'=>'Check out Exam for Viewing',
487: 'checkout?'=>'Check out Exam?');
1.352 albertel 488: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 489: return (<<ENDCHECKOUT);
1.211 albertel 490: <h2>$lt{'resource'}</h2>
491: <p>$lt{'id_expln'}</p>
492: <font color="red">
493: <p>$lt{'warning'}</p>
1.91 albertel 494: </font>
1.352 albertel 495: <form name="checkout" method="POST" action="$uri">
1.91 albertel 496: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 497: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 498: </form>
499: ENDCHECKOUT
500: }
501:
1.252 albertel 502: sub firstaccess_msg {
1.253 albertel 503: my ($time,$symb)=@_;
504: my ($map)=&Apache::lonnet::decode_symb($symb);
505: my $foldertitle=&Apache::lonnet::gettitle($map);
506: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 507: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 508: return (<<ENDCHECKOUT);
1.253 albertel 509: <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 510: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 511: <input type="hidden" name="markaccess" value="yes" />
512: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
513: </form>
514: ENDCHECKOUT
515: }
516:
1.204 albertel 517: sub init_problem_globals {
518: my ($type)=@_;
519: #initialize globals
1.308 foxr 520: # For problems, we start out in part 0 (outside a <part> tag).
521: # and part 0 is used to describe the main body of the <problem>
522: #
1.204 albertel 523: if ($type eq 'problem') {
524: $Apache::inputtags::part='0';
525: @Apache::inputtags::partlist=('0');
1.266 albertel 526: $Apache::lonhomework::problemstatus=&get_problem_status('0');
527: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 528:
1.266 albertel 529: } elsif ($type eq 'library') {
1.204 albertel 530: $Apache::inputtags::part='';
531: @Apache::inputtags::partlist=();
532: $Apache::lonhomework::problemstatus='';
1.266 albertel 533: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 534:
1.304 albertel 535: } elsif ($type eq 'Task') {
536: $Apache::inputtags::part='0';
537: @Apache::inputtags::partlist=('0');
538: $Apache::lonhomework::problemstatus='';
539: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 540: }
541: @Apache::inputtags::responselist = ();
542: @Apache::inputtags::importlist = ();
543: @Apache::inputtags::previous=();
544: @Apache::inputtags::previous_version=();
545: $Apache::structuretags::printanswer='No';
546: @Apache::structuretags::whileconds=();
547: @Apache::structuretags::whilebody=();
548: @Apache::structuretags::whileline=();
549: $Apache::lonhomework::scantronmode=0;
550: undef($Apache::lonhomework::name);
1.358 albertel 551: undef($Apache::lonhomework::default_type);
552: undef($Apache::lonhomework::type);
1.204 albertel 553: }
554:
555: sub reset_problem_globals {
556: my ($type)=@_;
557: undef(%Apache::lonhomework::history);
558: undef(%Apache::lonhomework::results);
559: undef($Apache::inputtags::part);
1.208 albertel 560: #don't undef this, lonhomework.pm takes care of this, we use this to
561: #detect if we try to do 2 problems in one file
562: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 563: undef($Apache::lonhomework::name);
1.358 albertel 564: undef($Apache::lonhomework::default_type);
565: undef($Apache::lonhomework::type);
566: undef($Apache::lonhomework::scantronmode);
567: undef($Apache::lonhomework::problemstatus);
568: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 569: }
570:
1.241 albertel 571: sub set_problem_state {
1.240 albertel 572: my ($part)=@_;
1.284 albertel 573: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 574: $Apache::lonhomework::history{"resource.$part.solved"}=
575: 'correct_by_student';
576: }
577: }
578:
1.241 albertel 579: sub get_problem_status {
580: my ($part)=@_;
1.267 albertel 581: my $problem_status;
1.284 albertel 582: if ($env{'request.state'} eq 'construct' &&
583: defined($env{'form.problemstatus'})) {
584: $problem_status=$env{'form.problemstatus'};
1.267 albertel 585: } else {
586: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
587: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 588: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 589: }
590: return $problem_status;
591: }
592:
1.9 albertel 593: sub start_problem {
1.326 albertel 594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 595:
1.311 foxr 596: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 597: if (!$Apache::lonxml::metamode) {
598: &Apache::lonxml::startredirection();
599: }
1.311 foxr 600:
1.308 foxr 601: # Problems don't nest and we don't allow more than one <problem> in
602: # a .problem file.
603: #
1.184 albertel 604: if ( $Apache::inputtags::part ne '' ||
605: $Apache::lonhomework::parsing_a_problem) {
606: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 607: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 608: return '';
609: }
1.184 albertel 610:
611: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 612: &init_problem_globals('problem');
1.166 albertel 613:
1.284 albertel 614: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 615: $Apache::lonhomework::scantronmode=1;
616: }
1.161 albertel 617:
1.159 albertel 618: if ($target ne 'analyze') {
1.284 albertel 619: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 620: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 621: if (($env{'request.state'} eq 'construct') &&
622: defined($env{'form.problemtype'})) {
623: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 624: }
1.332 albertel 625: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 626: }
1.164 albertel 627: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 628: my $uri=$env{'request.uri'};
1.159 albertel 629: if ($uri=~/\.(\w+)$/) {
630: $Apache::lonhomework::type=$1;
631: &Apache::lonxml::debug("Using type of $1");
632: } else {
633: $Apache::lonhomework::type='problem';
634: &Apache::lonxml::debug("Using default type, problem, :$uri:");
635: }
1.87 albertel 636: }
1.301 albertel 637: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 638:
1.363 albertel 639: &initialize_storage();
1.366 albertel 640: if ($target eq 'web') {
641: &Apache::lonxml::debug(" grading history ");
642: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
643: }
1.363 albertel 644:
1.159 albertel 645: #added vars to the scripting enviroment
1.213 albertel 646: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 647: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 648: &Apache::run::run($expression,$safeeval);
1.159 albertel 649: my $status;
650: my $accessmsg;
651:
1.343 albertel 652: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 653: my ($result,$form_tag_start);
1.354 albertel 654: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
655: || $target eq 'edit') {
1.350 albertel 656: ($result,$form_tag_start) =
657: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
658: $name);
659: }
660:
1.284 albertel 661: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 662:
663: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
664: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
665: $target eq 'tex') {
666: #handle exam checkout
667: if ($Apache::lonhomework::type eq 'exam') {
668: my $token=
669: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 670: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 671: $token=&Apache::lonxml::maketoken();
672: $Apache::lonhomework::history{"resource.0.outtoken"}=
673: $token;
674: }
1.343 albertel 675: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 676: }
1.284 albertel 677: if ($env{'form.markaccess'}) {
1.252 albertel 678: &Apache::lonnet::set_first_access('map');
679: }
1.159 albertel 680: #handle rand seed in construction space
681: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 682: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 683: if ($env{'request.state'} ne "construct" &&
684: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 685: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
686: $rndseed.'" />'.
687: '<input type="submit" name="resetdata"
1.334 albertel 688: value="'.&mt('New Problem Variation').'" />';
689: if (exists($env{'form.username'})) {
690: $form_tag_start.=
1.164 albertel 691: '<input type="hidden" name="username"
1.284 albertel 692: value="'.$env{'form.username'}.'" />';
1.334 albertel 693: }
1.333 albertel 694: if ($env{'request.role.adv'}) {
1.267 albertel 695: $form_tag_start.=
1.300 albertel 696: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 697: if (defined($env{'form.showallfoils'})) {
1.267 albertel 698: $form_tag_start.='checked="on"';
699: }
1.300 albertel 700: $form_tag_start.= ' />'.&mt(' Show All Foils').
701: '</label>';
1.267 albertel 702: }
703: $form_tag_start.='<hr />';
1.162 albertel 704: }
1.324 albertel 705:
706: ($status,$accessmsg,my $slot_name,my $slot) =
707: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 708: push (@Apache::inputtags::status,$status);
1.324 albertel 709:
1.159 albertel 710: my $expression='$external::datestatus="'.$status.'";';
711: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
712: &Apache::run::run($expression,$safeeval);
713: &Apache::lonxml::debug("Got $status");
1.324 albertel 714:
1.159 albertel 715: if (( $status eq 'CLOSED' ) ||
716: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 717: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 718: ( $status eq 'BANNED') ||
1.216 albertel 719: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 720: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 721: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 722: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
723: $style);
1.159 albertel 724: if ( $target eq "web" ) {
1.343 albertel 725: my $msg;
1.159 albertel 726: if ($status eq 'UNAVAILABLE') {
1.245 albertel 727: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 728: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 729: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 730: }
1.216 albertel 731: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 732: $msg.='The problem '.$accessmsg;
733: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 734: $msg.=&checkout_msg();
1.252 albertel 735: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 736: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 737: } elsif ($status eq 'NOT_IN_A_SLOT') {
738: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 739: }
740: $result.=$msg.'<br />';
741: } elsif ($target eq 'tex') {
1.332 albertel 742: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
743: : '\begin{minipage}{\textwidth}';
744: $result.='\begin{document}\noindent \vskip 1 mm '.
745: $startminipage.'\vskip 0 mm';
1.159 albertel 746: if ($status eq 'UNAVAILABLE') {
1.211 albertel 747: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 748: } else {
1.211 albertel 749: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 750: }
751: }
1.324 albertel 752: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 753: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
754: $style);
1.324 albertel 755: if ($target eq 'web') {
1.375 albertel 756: $result .=
757: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 758: } elsif ($target eq 'grade') {
759: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
760: 'problem');
761: }
1.159 albertel 762: } elsif ($target eq 'web') {
1.360 albertel 763: if ($status eq 'CAN_ANSWER'
764: && $slot_name ne ''
765: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
766: # unproctored slot access, self checkin
767: &Apache::bridgetask::check_in('problem',undef,undef,
768: $slot_name);
769: }
1.368 albertel 770: $result.="\n $form_tag_start \t".
1.227 albertel 771: '<input type="hidden" name="submitted" value="yes" />';
772: # create a page header and exit
1.284 albertel 773: if ($env{'request.state'} eq "construct") {
774: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 775: }
776: # if we are viewing someone else preserve that info
1.284 albertel 777: if (defined $env{'form.grade_symb'}) {
1.227 albertel 778: foreach my $field ('symb','courseid','domain','username') {
779: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 780: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 781: }
782: }
783: } elsif ($target eq 'tex') {
1.319 foxr 784: $result .= 'INSERTTEXFRONTMATTERHERE';
785:
1.99 sakharuk 786: }
1.159 albertel 787: } elsif ($target eq 'edit') {
1.343 albertel 788: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 789: $Apache::lonxml::warnings_error_header=
790: &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 791: my $temp=&Apache::edit::insertlist($target,$token);
792: $result.=$temp;
793: } elsif ($target eq 'modified') {
794: $result=$token->[4];
795: $result.=&Apache::edit::handle_insert();
796: } else {
797: # page_start returned a starting result, delete it if we don't need it
798: $result = '';
1.99 sakharuk 799: }
1.159 albertel 800: return $result;
1.9 albertel 801: }
802:
803: sub end_problem {
1.159 albertel 804: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 805: my $result;
1.310 foxr 806:
1.321 albertel 807: if (!$Apache::lonxml::metamode) {
808: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 809: $Apache::lonxml::post_evaluate=0;
1.321 albertel 810: }
1.319 foxr 811:
812: if ($target eq 'tex') {
1.321 albertel 813: # Figure out the front matter and replace the
814: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
815: # this in end_problem because whether or not we display due
816: # dates depends on whether due dates have already been
817: # displayed in the problem parts.
818:
1.319 foxr 819: my $frontmatter = '';
820: my $startminipage = '';
821: if (not $env{'form.problem_split'}=~/yes/) {
822: $startminipage = '\begin{minipage}{\textwidth}';
823: }
824: my $id = $Apache::inputtags::part;
825: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
826: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
827: my @packages = split /,/,$packages;
828: my $allow_print_points = 0;
829: foreach my $partial_key (@packages) {
830: if ($partial_key=~m/^part_0$/) {
831: $allow_print_points=1;
832: }
833: }
834: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
835: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
836: if (lc($env{'course.'.$env{'request.course.id'}.
837: '.disableexampointprint'}) eq 'yes') {
838: $allow_print_points=0;
839: }
840: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
841: 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 ';
842: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
843: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
844:
845: # Figure out what the due date is and if we need to print
846: # it in the problem header. We have been logging the
847: # last due date written to file.
848:
849: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
850: my $duedate = POSIX::strftime("%c",localtime($duetime));
851: my $temp_file;
852: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
853:
854: # Figure out what the last printed due date is or set it
855: # to the epoch if no duedates have been printed.
856:
857: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
858: if (-e $filename) {
859: $temp_file = Apache::File->new($filename);
860: my @due_file = <$temp_file>;
861: $due_file_content = $due_file[$#due_file];
862: chomp $due_file_content;
863: }
864:
865: # We display the due date iff it is not the same as the last
866: # duedate in problem header ($due_file_content), and
867: # none of our parts displayed a duedate.
868: #
869: my $parts_with_displayduedate;
870: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
871: $parts_with_displayduedate =
872: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
873: } else {
874: $parts_with_displayduedate = 0;
875: }
876: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
877: $temp_file = Apache::File->new('>'.$filename);
878: print $temp_file "$duetime\n";
879: if (not $env{'request.symb'} =~ m/\.page_/) {
880: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
881: $frontmatter .= $begin_doc.
882: '\textit{Due date: '.$duedate.'} '.$toc_line;
883: } else {
884: $frontmatter.= $begin_doc.$toc_line;
885: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
886: }
887: } else {
888: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
889: }
890: } else {
891: if (not $env{'request.symb'} =~ m/\.page_/) {
892: $frontmatter .= $begin_doc.$toc_line;
893: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
894: } else {
895: $frontmatter .= '\vskip 1mm \\\\\\\\';
896: }
897: }
898: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
899: }
900:
1.159 albertel 901: my $status=$Apache::inputtags::status['-1'];
902: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
903: $target eq 'tex') {
1.249 albertel 904: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 905: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 906: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
907: &Apache::inputtags::grade;
1.324 albertel 908: } elsif ($status eq 'NEEDS_CHECKIN') {
909: # no need to grade, and don't want to hide data
1.249 albertel 910: } else {
911: # move any submission data to .hidden
912: &Apache::inputtags::hidealldata($Apache::inputtags::part);
913: }
1.159 albertel 914: } elsif ( ($target eq 'web' || $target eq 'tex') &&
915: $Apache::inputtags::part eq '0' &&
1.252 albertel 916: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 917: # if part is zero, no <part>s existed, so we need show the current
918: # grading status
919: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
920: $result.= $gradestatus;
921: }
922: if (
1.284 albertel 923: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 924: ($target eq 'answer') || ($target eq 'tex')
925: ) {
1.227 albertel 926: if ($target ne 'tex' &&
1.284 albertel 927: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 928: $result.="</form>";
1.348 albertel 929: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 930: }
931: if ($target eq 'web') {
1.346 albertel 932: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 933: } elsif ($target eq 'tex') {
1.178 sakharuk 934: my $endminipage = '';
1.284 albertel 935: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 936: $endminipage = '\end{minipage}';
937: }
1.284 albertel 938: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 939: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 940: } else {
1.262 sakharuk 941: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 942: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 943: $result .= $endminipage.'\end{document} ';
944: } else {
945: $result .= '';
946: }
1.159 albertel 947: }
948: }
949: }
950: if ($target eq 'grade') {
951: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
952: &finalize_storage();
953: }
1.284 albertel 954: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
955: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 956: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 957: # normally we get it from above, but in CSTR
1.172 albertel 958: # we always show answer mode too.
1.159 albertel 959: }
960: } elsif ($target eq 'meta') {
961: if ($Apache::inputtags::part eq '0') {
1.179 albertel 962: @Apache::inputtags::response=();
1.159 albertel 963: $result=&Apache::response::mandatory_part_meta;
964: }
1.215 albertel 965: $result.=&Apache::response::meta_part_order();
1.258 albertel 966: $result.=&Apache::response::meta_response_order();
1.159 albertel 967: } elsif ($target eq 'edit') {
968: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 969: $result .= &problem_edit_footer();
1.320 albertel 970: } elsif ($target eq 'modified') {
971: $result .= $token->[2];
972: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 973: }
1.155 albertel 974:
1.284 albertel 975: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 976: &Apache::inputtags::check_for_duplicate_ids();
977: }
1.204 albertel 978:
979: &reset_problem_globals('problem');
1.159 albertel 980:
981: return $result;
1.48 albertel 982: }
983:
1.108 albertel 984:
1.48 albertel 985: sub start_library {
1.159 albertel 986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 987: my ($result,$form_tag_start);
1.371 albertel 988: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 989: &init_problem_globals('library');
990: $Apache::lonhomework::type='problem';
991: }
1.159 albertel 992: if ($target eq 'edit') {
1.343 albertel 993: ($result,$form_tag_start)=
994: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
995: 'Edit');
996: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 997: my $temp=&Apache::edit::insertlist($target,$token);
998: $result.=$temp;
999: } elsif ($target eq 'modified') {
1000: $result=$token->[4];
1001: $result.=&Apache::edit::handle_insert();
1.340 albertel 1002: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1003: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1004: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1005: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1006: ($result,$form_tag_start)=
1007: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1008: $name);
1.159 albertel 1009: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1010: $result.=" \n $form_tag_start".
1.159 albertel 1011: '<input type="hidden" name="submitted" value="yes" />';
1012: $result.=&problem_web_to_edit_header($rndseed);
1013: }
1014: return $result;
1.48 albertel 1015: }
1016:
1017: sub end_library {
1.159 albertel 1018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1019: my $result='';
1020: if ($target eq 'edit') {
1021: $result=&problem_edit_footer();
1.371 albertel 1022: } elsif ($target eq 'web'
1023: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1024: && $env{'request.state'} eq "construct") {
1.349 albertel 1025: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1026: }
1.371 albertel 1027: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1028: &reset_problem_globals('library');
1029: }
1.159 albertel 1030: return $result;
1.197 www 1031: }
1032:
1033: sub start_definetag {
1.326 albertel 1034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1035:
1036: my $result;
1037:
1038: my $name = $token->[2]->{'name'};
1.326 albertel 1039: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1040: if ($name=~/^\//) {
1041: $result=
1042: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1043: } else {
1044: $result=
1045: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1046: }
1047: $skip=~s/\</\<\;/gs;
1048: $skip=~s/\>/\>\;/gs;
1049: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1050: return $result;
1051: }
1052:
1053: sub end_definetag {
1054: return '';
1.1 albertel 1055: }
1056:
1057: sub start_block {
1.201 albertel 1058: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1059:
1060: my $result;
1.1 albertel 1061:
1.339 albertel 1062: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1063: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1064: my $code = $token->[2]->{'condition'};
1.201 albertel 1065: if (defined($code)) {
1.137 albertel 1066: if (!$Apache::lonxml::default_homework_loaded) {
1067: &Apache::lonxml::default_homework_load($safeeval);
1068: }
1.131 albertel 1069: $result = &Apache::run::run($code,$safeeval);
1070: &Apache::lonxml::debug("block :$code: returned :$result:");
1071: } else {
1072: $result='1';
1073: }
1074: if ( ! $result ) {
1.201 albertel 1075: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1076: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1077: }
1078: $result='';
1079: } elsif ($target eq 'edit') {
1080: $result .=&Apache::edit::tag_start($target,$token);
1081: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1082: $token,40);
1083: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1084: } elsif ($target eq 'modified') {
1085: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1086: $safeeval,'condition');
1087: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1088: }
1.131 albertel 1089: return $result;
1.1 albertel 1090: }
1091:
1092: sub end_block {
1.167 www 1093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1094: my $result;
1095: if ($target eq "edit") {
1096: $result.= &Apache::edit::tag_end($target,$token,'');
1097: }
1098: return $result;
1099: }
1100:
1101: sub start_languageblock {
1.201 albertel 1102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1103:
1104: my $result;
1105:
1.339 albertel 1106: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1107: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1108: my $include = $token->[2]->{'include'};
1109: my $exclude = $token->[2]->{'exclude'};
1110: my %languages=&Apache::loncommon::display_languages();
1111: $result='1';
1112: if ($include) {
1113: $result='';
1114: foreach (split(/\,/,$include)) {
1115: if ($languages{$_}) { $result='1'; }
1116: }
1117: }
1118: if ($exclude) {
1119: foreach (split(/\,/,$exclude)) {
1120: if ($languages{$_}) { $result='0'; }
1121: }
1122: }
1123: if ( ! $result ) {
1124: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1125: $style);
1126: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1127: }
1128: $result='';
1.167 www 1129: } elsif ($target eq 'edit') {
1130: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1131: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1132: $token,40);
1.211 albertel 1133: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1134: $token,40);
1135: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1136: } elsif ($target eq 'modified') {
1137: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1138: $safeeval,'include',
1139: 'exclude');
1.167 www 1140: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1141: }
1142: return $result;
1143: }
1144:
1145: sub end_languageblock {
1.170 www 1146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1147: my $result;
1.201 albertel 1148: if ($target eq "edit") {
1.170 www 1149: $result.= &Apache::edit::tag_end($target,$token,'');
1150: }
1151: return $result;
1152: }
1153:
1154: sub start_instructorcomment {
1.201 albertel 1155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1156:
1157: my $result;
1158:
1.339 albertel 1159: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1160: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1161: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1162: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1163: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1164: $parser,$style);
1.170 www 1165: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1166: }
1167: $result='';
1168: } elsif ($target eq 'edit') {
1169: $result .=&Apache::edit::tag_start($target,$token);
1170: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1171: }
1172: return $result;
1173: }
1174:
1175: sub end_instructorcomment {
1.159 albertel 1176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1177: my $result;
1178: if ($target eq "edit") {
1179: $result.= &Apache::edit::tag_end($target,$token,'');
1180: }
1181: return $result;
1.4 tsai 1182: }
1183:
1184: sub start_while {
1.326 albertel 1185: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1186:
1.160 albertel 1187: my $result;
1.339 albertel 1188: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1189: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1190: my $code = $token->[2]->{'condition'};
1.4 tsai 1191:
1.160 albertel 1192: push( @Apache::structuretags::whileconds, $code);
1193: if (!$Apache::lonxml::default_homework_loaded) {
1194: &Apache::lonxml::default_homework_load($safeeval);
1195: }
1196: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1197: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1198: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1199: push( @Apache::structuretags::whileline, $token->[5]);
1200: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1201: if ( $result ) {
1202: &Apache::lonxml::newparser($parser,\$bodytext);
1203: }
1204: } elsif ($target eq 'edit') {
1205: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1206: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1207: $token,40);
1208: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1209: } elsif ($target eq 'modified') {
1210: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1211: $safeeval,'condition');
1212: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1213: }
1.160 albertel 1214: return $result;
1.4 tsai 1215: }
1216:
1217: sub end_while {
1.159 albertel 1218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1219: my $result;
1220:
1.339 albertel 1221: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1222: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1223: my $code = pop(@Apache::structuretags::whileconds);
1224: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1225: my $line = pop(@Apache::structuretags::whileline);
1226: my $return = &Apache::run::run($code,$safeeval);
1227: my $starttime=time;
1228: my $error=0;
1229: while ($return) {
1230: if (time-$starttime >
1231: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1232: #$return = 0; $error=1; next;
1.161 albertel 1233: }
1234: $result.=&Apache::scripttag::xmlparse($bodytext);
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: $result.=&Apache::edit::handle_insert();
1449: }
1450: }
1451: return $result;
1.11 albertel 1452: }
1453:
1454: sub end_part {
1.159 albertel 1455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1456: &Apache::lonxml::debug("in end_part $target ");
1457: my $status=$Apache::inputtags::status['-1'];
1458: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1459: my $in_order_show=&ordered_show_check();
1.321 albertel 1460: my $result;
1461: if (!$Apache::lonxml::metamode) {
1462: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1463: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1464: }
1.312 albertel 1465: if ($target eq 'grade') {
1.249 albertel 1466: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1467: !$hidden && $in_order_show) {
1.311 foxr 1468: $result.=&Apache::inputtags::grade;
1.249 albertel 1469: } else {
1470: # move any submission data to .hidden
1471: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1472: }
1.283 albertel 1473: } elsif (($target eq 'web' || $target eq 'tex') &&
1474: !$hidden && $in_order_show) {
1.159 albertel 1475: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1476: $target);
1.212 albertel 1477: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1478: $gradestatus='';
1479: }
1.311 foxr 1480: $result.=$gradestatus;
1.265 sakharuk 1481: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1482: } elsif ($target eq 'edit') {
1.311 foxr 1483: $result.=&Apache::edit::end_table();
1.322 albertel 1484: } elsif ($target eq 'modified') {
1485: $result .= $token->[2];
1486: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1487: }
1488: pop @Apache::inputtags::status;
1489: $Apache::inputtags::part='';
1.295 albertel 1490: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1491: return $result;
1.11 albertel 1492: }
1.1 albertel 1493:
1.25 albertel 1494: sub start_preduedate {
1.326 albertel 1495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1496: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1497: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1498: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1499: if (!$Apache::lonhomework::scantronmode &&
1500: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1501: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1502: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1503: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1504: }
1.24 albertel 1505: }
1.159 albertel 1506: return '';
1.24 albertel 1507: }
1508:
1.25 albertel 1509: sub end_preduedate {
1.159 albertel 1510: return '';
1.24 albertel 1511: }
1512:
1.369 foxr 1513: # In all the modes where <postanswerdate> text is
1514: # displayable, all we do is eat up the text between the start/stop
1515: # tags if the conditions are not right to display it.
1.25 albertel 1516: sub start_postanswerdate {
1.326 albertel 1517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1518: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1519: &Apache::lonnet::allowed('pav',
1520: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1521: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1522: $target eq 'tex' ) {
1.300 albertel 1523: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1524: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1525: (($target eq 'tex') && !$pav)) {
1.326 albertel 1526: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1527: }
1528: }
1529: return '';
1.24 albertel 1530: }
1531:
1.25 albertel 1532: sub end_postanswerdate {
1.159 albertel 1533: return '';
1.24 albertel 1534: }
1535:
1.25 albertel 1536: sub start_notsolved {
1.326 albertel 1537: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1538: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1539: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1540: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1541: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1542: if ($gradestatus =~ /^correct/ &&
1543: &Apache::response::show_answer()) {
1.159 albertel 1544: &Apache::lonxml::debug("skipping");
1.326 albertel 1545: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1546: }
1.24 albertel 1547: }
1.159 albertel 1548: return '';
1.24 albertel 1549: }
1550:
1.25 albertel 1551: sub end_notsolved {
1.159 albertel 1552: return '';
1.24 albertel 1553: }
1554:
1555: sub start_solved {
1.326 albertel 1556: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1557: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1558: $target eq 'tex') {
1559: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1560: if ($gradestatus !~ /^correct/ ||
1561: !&Apache::response::show_answer()) {
1.326 albertel 1562: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1563: }
1.24 albertel 1564: }
1.159 albertel 1565: return '';
1.24 albertel 1566: }
1567:
1568: sub end_solved {
1.248 albertel 1569: return '';
1570: }
1571:
1572: sub start_problemtype {
1.326 albertel 1573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1574: my $result;
1.339 albertel 1575: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1576: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1577: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1578: if (!defined($mode)) { $mode='show'; }
1579: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1580: my $found=0;
1581: foreach my $type (split(',',$for)) {
1582: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1583: }
1584: if ($mode eq 'show' && !$found) {
1.326 albertel 1585: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1586: }
1587: if ($mode eq 'hide' && $found) {
1.326 albertel 1588: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1589: }
1590: } elsif ($target eq 'edit') {
1591: $result .=&Apache::edit::tag_start($target,$token);
1592: $result.=&Apache::edit::select_arg('Mode:','mode',
1593: [['show','Show'],
1594: ['hide','Hide']]
1595: ,$token);
1596: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1597: [ ['exam','Exam/Quiz Problem'],
1598: ['survey','Survey'],
1599: ['problem','Homework Problem'] ]
1600: ,$token);
1601: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1602: } elsif ($target eq 'modified') {
1603: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1604: $safeeval,'mode','for');
1605: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1606: }
1607: return $result;
1608: }
1609:
1610: sub end_problemtype {
1.159 albertel 1611: return '';
1.24 albertel 1612: }
1.34 albertel 1613:
1614: sub start_startouttext {
1.159 albertel 1615: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1616: my @result=(''.'');
1617: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1618: return (@result);
1.34 albertel 1619: }
1.159 albertel 1620:
1.34 albertel 1621: sub end_startouttext {
1.326 albertel 1622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1623: my $result='';
1624: my $text='';
1625:
1626: if ($target eq 'edit') {
1.326 albertel 1627: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1628: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1629: <td>".&mt('Delete:').
1.159 albertel 1630: &Apache::edit::deletelist($target,$token)
1631: ."</td>
1.42 albertel 1632: <td>".
1.159 albertel 1633: &Apache::edit::insertlist($target,$token).
1.362 albertel 1634: '</td><td align="right" valign="top">' .
1635: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1636: &Apache::edit::end_row().
1.362 albertel 1637: &Apache::edit::start_spanning_row()."\n".
1.255 www 1638: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1639: }
1640: if ($target eq 'modified') {
1.219 albertel 1641: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1642: }
1643: if ($target eq 'tex') {
1644: $result .= '\noindent ';
1645: }
1646: return $result;
1.34 albertel 1647: }
1.159 albertel 1648:
1.34 albertel 1649: sub start_endouttext {
1.159 albertel 1650: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1651: my $result='';
1652: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1653: if ($target eq "modified") {
1654: $result='<endouttext />'.
1655: &Apache::edit::handle_insertafter('startouttext'); }
1656: return $result;
1.34 albertel 1657: }
1.159 albertel 1658:
1.34 albertel 1659: sub end_endouttext {
1.159 albertel 1660: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1661: my @result=('','');
1662: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1663: return (@result);
1.34 albertel 1664: }
1.159 albertel 1665:
1.45 albertel 1666: sub delete_startouttext {
1.326 albertel 1667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1668: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1669: my $text=$$parser['-1']->get_text("/endouttext");
1670: my $ntoken=$$parser['-1']->get_token();
1671: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1672: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1673: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1674: # they did the last time round
1675: &Apache::lonxml::increasedepth($ntoken);
1676: &Apache::lonxml::decreasedepth($ntoken);
1677: return 1;
1.193 www 1678: }
1679:
1680: sub start_simpleeditbutton {
1681: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1682: my $result='';
1.284 albertel 1683: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1684: ($target eq 'web') &&
1.330 albertel 1685: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1686: my $url=$env{'request.noversionuri'};
1.193 www 1687: $url=~s/\?.*$//;
1.367 albertel 1688: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1689: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1690: '<a href="'.$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 1691: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1692: }
1693: return $result;
1694: }
1695:
1696: sub end_simpleeditbutton {
1697: return '';
1.45 albertel 1698: }
1.34 albertel 1699:
1.1 albertel 1700: 1;
1701: __END__
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