Annotation of loncom/homework/structuretags.pm, revision 1.374
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.374 ! albertel 4: # $Id: structuretags.pm,v 1.373 2007/02/23 01:04:05 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 />';
1.313 albertel 347: }
1.159 albertel 348: return $result;
1.48 albertel 349: }
350:
1.65 albertel 351: sub initialize_storage {
1.357 albertel 352: my ($given_symb) = @_;
1.353 albertel 353: undef(%Apache::lonhomework::results);
354: undef(%Apache::lonhomework::history);
1.357 albertel 355: my ($symb,$courseid,$domain,$name) =
1.367 albertel 356: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 357:
358: # anonymous users (CODEd exams) have no data
359: if ($name eq 'anonymous'
360: && !defined($domain)) {
361: return;
362: }
363:
1.333 albertel 364: if ($env{'request.state'} eq 'construct'
365: || $symb eq ''
366: || $Apache::lonhomework::type eq 'practice') {
367:
368: my $namespace = $symb || $env{'request.uri'};
369: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 ! albertel 370: ($env{'form.resetdata'} eq &mt('New Problem Variation')
! 371: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 372: $env{'form.newrandomization'} eq &mt('New Randomization')) {
373: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
374: &Apache::lonxml::debug("Attempt reset");
375: }
1.159 albertel 376: %Apache::lonhomework::history=
1.333 albertel 377: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 378: my ($temp)=keys %Apache::lonhomework::history ;
379: &Apache::lonxml::debug("Return message of $temp");
380: } else {
381: %Apache::lonhomework::history=
382: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
383: }
1.353 albertel 384:
1.159 albertel 385: #ignore error conditions
1.67 albertel 386: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 387: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 388: }
389:
390: # -------------------------------------------------------------finalize_storage
391: # Stores away the result has to a student's environment
392: # checks form.grade_ for specific values, other wises stores
393: # to the running users environment
1.285 raeburn 394: # Will increment totals for attempts, students, and corrects
395: # if running user has student role.
1.65 albertel 396: sub finalize_storage {
1.357 albertel 397: my ($given_symb) = @_;
1.159 albertel 398: my $result;
1.289 albertel 399: if (%Apache::lonhomework::results) {
1.323 albertel 400: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
401: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 402: my ($symb,$courseid,$domain,$name) =
1.367 albertel 403: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 404: if ($env{'request.state'} eq 'construct'
405: || $symb eq ''
406: || $Apache::lonhomework::type eq 'practice') {
407: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 408: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 409: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 410: $namespace,'',$domain,$name);
1.159 albertel 411: &Apache::lonxml::debug('Construct Store return message:'.$result);
412: } else {
413: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
414: $symb,$courseid,$domain,$name);
415: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 416: if ($env{'request.role'} =~/^st/) {
417: &store_aggregates($symb,$courseid);
418: }
1.159 albertel 419: }
1.323 albertel 420: } else {
421: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 422: }
1.159 albertel 423: return $result;
1.65 albertel 424: }
1.289 albertel 425: use Data::Dumper;
1.65 albertel 426:
1.285 raeburn 427: # -------------------------------------------------------------store_aggregates
428: # Sends hash of values to be incremented in nohist_resourcetracker.db
429: # for the course. Increments total number of attempts, unique students
430: # and corrects for each part for an instance of a problem, as appropriate.
431: sub store_aggregates {
432: my ($symb,$courseid) = @_;
1.286 albertel 433: my %aggregate;
434: my @parts;
1.288 albertel 435: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
436: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 437: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 438: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 439: push(@parts, $1);
1.285 raeburn 440: }
441: }
1.286 albertel 442: foreach my $part (@parts) {
443: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
444: eq 'APPROX_ANS' ||
445: $Apache::lonhomework::results{'resource.'.$part.'.award'}
446: eq 'EXACT_ANS') {
1.287 albertel 447: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 448: }
1.286 albertel 449: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 450: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 451: } else {
1.293 albertel 452: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 453: if ($last_reset) {
1.293 albertel 454: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 455: $aggregate{$symb."\0".$part."\0users"} = 1;
456: }
457: }
1.285 raeburn 458: }
1.287 albertel 459: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 460: }
1.292 raeburn 461: if (keys (%aggregate) > 0) {
1.289 albertel 462: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 463: $cdomain,$cname);
464: }
465: }
1.289 albertel 466:
1.65 albertel 467: sub checkout_msg {
1.211 albertel 468: my %lt=&Apache::lonlocal::texthash(
469: 'resource'=>'The resource needs to be checked out',
470: '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.',
471: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
472: 'checkout'=>'Check out Exam for Viewing',
473: 'checkout?'=>'Check out Exam?');
1.352 albertel 474: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 475: return (<<ENDCHECKOUT);
1.211 albertel 476: <h2>$lt{'resource'}</h2>
477: <p>$lt{'id_expln'}</p>
478: <font color="red">
479: <p>$lt{'warning'}</p>
1.91 albertel 480: </font>
1.352 albertel 481: <form name="checkout" method="POST" action="$uri">
1.91 albertel 482: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 483: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 484: </form>
485: ENDCHECKOUT
486: }
487:
1.252 albertel 488: sub firstaccess_msg {
1.253 albertel 489: my ($time,$symb)=@_;
490: my ($map)=&Apache::lonnet::decode_symb($symb);
491: my $foldertitle=&Apache::lonnet::gettitle($map);
492: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 493: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 494: return (<<ENDCHECKOUT);
1.253 albertel 495: <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 496: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 497: <input type="hidden" name="markaccess" value="yes" />
498: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
499: </form>
500: ENDCHECKOUT
501: }
502:
1.204 albertel 503: sub init_problem_globals {
504: my ($type)=@_;
505: #initialize globals
1.308 foxr 506: # For problems, we start out in part 0 (outside a <part> tag).
507: # and part 0 is used to describe the main body of the <problem>
508: #
1.204 albertel 509: if ($type eq 'problem') {
510: $Apache::inputtags::part='0';
511: @Apache::inputtags::partlist=('0');
1.266 albertel 512: $Apache::lonhomework::problemstatus=&get_problem_status('0');
513: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 514:
1.266 albertel 515: } elsif ($type eq 'library') {
1.204 albertel 516: $Apache::inputtags::part='';
517: @Apache::inputtags::partlist=();
518: $Apache::lonhomework::problemstatus='';
1.266 albertel 519: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 520:
1.304 albertel 521: } elsif ($type eq 'Task') {
522: $Apache::inputtags::part='0';
523: @Apache::inputtags::partlist=('0');
524: $Apache::lonhomework::problemstatus='';
525: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 526: }
527: @Apache::inputtags::responselist = ();
528: @Apache::inputtags::importlist = ();
529: @Apache::inputtags::previous=();
530: @Apache::inputtags::previous_version=();
531: $Apache::structuretags::printanswer='No';
532: @Apache::structuretags::whileconds=();
533: @Apache::structuretags::whilebody=();
534: @Apache::structuretags::whileline=();
535: $Apache::lonhomework::scantronmode=0;
536: undef($Apache::lonhomework::name);
1.358 albertel 537: undef($Apache::lonhomework::default_type);
538: undef($Apache::lonhomework::type);
1.204 albertel 539: }
540:
541: sub reset_problem_globals {
542: my ($type)=@_;
543: undef(%Apache::lonhomework::history);
544: undef(%Apache::lonhomework::results);
545: undef($Apache::inputtags::part);
1.208 albertel 546: #don't undef this, lonhomework.pm takes care of this, we use this to
547: #detect if we try to do 2 problems in one file
548: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 549: undef($Apache::lonhomework::name);
1.358 albertel 550: undef($Apache::lonhomework::default_type);
551: undef($Apache::lonhomework::type);
552: undef($Apache::lonhomework::scantronmode);
553: undef($Apache::lonhomework::problemstatus);
554: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 555: }
556:
1.241 albertel 557: sub set_problem_state {
1.240 albertel 558: my ($part)=@_;
1.284 albertel 559: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 560: $Apache::lonhomework::history{"resource.$part.solved"}=
561: 'correct_by_student';
562: }
563: }
564:
1.241 albertel 565: sub get_problem_status {
566: my ($part)=@_;
1.267 albertel 567: my $problem_status;
1.284 albertel 568: if ($env{'request.state'} eq 'construct' &&
569: defined($env{'form.problemstatus'})) {
570: $problem_status=$env{'form.problemstatus'};
1.267 albertel 571: } else {
572: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
573: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 574: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 575: }
576: return $problem_status;
577: }
578:
1.9 albertel 579: sub start_problem {
1.326 albertel 580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 581:
1.311 foxr 582: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 583: if (!$Apache::lonxml::metamode) {
584: &Apache::lonxml::startredirection();
585: }
1.311 foxr 586:
1.308 foxr 587: # Problems don't nest and we don't allow more than one <problem> in
588: # a .problem file.
589: #
1.184 albertel 590: if ( $Apache::inputtags::part ne '' ||
591: $Apache::lonhomework::parsing_a_problem) {
592: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 593: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 594: return '';
595: }
1.184 albertel 596:
597: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 598: &init_problem_globals('problem');
1.166 albertel 599:
1.284 albertel 600: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 601: $Apache::lonhomework::scantronmode=1;
602: }
1.161 albertel 603:
1.159 albertel 604: if ($target ne 'analyze') {
1.284 albertel 605: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 606: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 607: if (($env{'request.state'} eq 'construct') &&
608: defined($env{'form.problemtype'})) {
609: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 610: }
1.332 albertel 611: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 612: }
1.164 albertel 613: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 614: my $uri=$env{'request.uri'};
1.159 albertel 615: if ($uri=~/\.(\w+)$/) {
616: $Apache::lonhomework::type=$1;
617: &Apache::lonxml::debug("Using type of $1");
618: } else {
619: $Apache::lonhomework::type='problem';
620: &Apache::lonxml::debug("Using default type, problem, :$uri:");
621: }
1.87 albertel 622: }
1.301 albertel 623: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 624:
1.363 albertel 625: &initialize_storage();
1.366 albertel 626: if ($target eq 'web') {
627: &Apache::lonxml::debug(" grading history ");
628: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
629: }
1.363 albertel 630:
1.159 albertel 631: #added vars to the scripting enviroment
1.213 albertel 632: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 633: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 634: &Apache::run::run($expression,$safeeval);
1.159 albertel 635: my $status;
636: my $accessmsg;
637:
1.343 albertel 638: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 639: my ($result,$form_tag_start);
1.354 albertel 640: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
641: || $target eq 'edit') {
1.350 albertel 642: ($result,$form_tag_start) =
643: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
644: $name);
645: }
646:
1.284 albertel 647: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 648:
649: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
650: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
651: $target eq 'tex') {
652: #handle exam checkout
653: if ($Apache::lonhomework::type eq 'exam') {
654: my $token=
655: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 656: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 657: $token=&Apache::lonxml::maketoken();
658: $Apache::lonhomework::history{"resource.0.outtoken"}=
659: $token;
660: }
1.343 albertel 661: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 662: }
1.284 albertel 663: if ($env{'form.markaccess'}) {
1.252 albertel 664: &Apache::lonnet::set_first_access('map');
665: }
1.159 albertel 666: #handle rand seed in construction space
667: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 668: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 669: if ($env{'request.state'} ne "construct" &&
670: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 671: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
672: $rndseed.'" />'.
673: '<input type="submit" name="resetdata"
1.334 albertel 674: value="'.&mt('New Problem Variation').'" />';
675: if (exists($env{'form.username'})) {
676: $form_tag_start.=
1.164 albertel 677: '<input type="hidden" name="username"
1.284 albertel 678: value="'.$env{'form.username'}.'" />';
1.334 albertel 679: }
1.333 albertel 680: if ($env{'request.role.adv'}) {
1.267 albertel 681: $form_tag_start.=
1.300 albertel 682: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 683: if (defined($env{'form.showallfoils'})) {
1.267 albertel 684: $form_tag_start.='checked="on"';
685: }
1.300 albertel 686: $form_tag_start.= ' />'.&mt(' Show All Foils').
687: '</label>';
1.267 albertel 688: }
689: $form_tag_start.='<hr />';
1.162 albertel 690: }
1.324 albertel 691:
692: ($status,$accessmsg,my $slot_name,my $slot) =
693: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 694: push (@Apache::inputtags::status,$status);
1.324 albertel 695:
1.159 albertel 696: my $expression='$external::datestatus="'.$status.'";';
697: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
698: &Apache::run::run($expression,$safeeval);
699: &Apache::lonxml::debug("Got $status");
1.324 albertel 700:
1.159 albertel 701: if (( $status eq 'CLOSED' ) ||
702: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 703: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 704: ( $status eq 'BANNED') ||
1.216 albertel 705: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 706: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 707: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 708: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
709: $style);
1.159 albertel 710: if ( $target eq "web" ) {
1.343 albertel 711: my $msg;
1.159 albertel 712: if ($status eq 'UNAVAILABLE') {
1.245 albertel 713: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 714: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 715: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 716: }
1.216 albertel 717: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 718: $msg.='The problem '.$accessmsg;
719: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 720: $msg.=&checkout_msg();
1.252 albertel 721: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 722: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 723: } elsif ($status eq 'NOT_IN_A_SLOT') {
724: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 725: }
726: $result.=$msg.'<br />';
727: } elsif ($target eq 'tex') {
1.332 albertel 728: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
729: : '\begin{minipage}{\textwidth}';
730: $result.='\begin{document}\noindent \vskip 1 mm '.
731: $startminipage.'\vskip 0 mm';
1.159 albertel 732: if ($status eq 'UNAVAILABLE') {
1.211 albertel 733: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 734: } else {
1.211 albertel 735: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 736: }
737: }
1.324 albertel 738: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 739: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
740: $style);
1.324 albertel 741: if ($target eq 'web') {
742: $result .= &Apache::bridgetask::proctor_validation_screen();
743: } elsif ($target eq 'grade') {
744: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
745: 'problem');
746: }
1.159 albertel 747: } elsif ($target eq 'web') {
1.360 albertel 748: if ($status eq 'CAN_ANSWER'
749: && $slot_name ne ''
750: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
751: # unproctored slot access, self checkin
752: &Apache::bridgetask::check_in('problem',undef,undef,
753: $slot_name);
754: }
1.368 albertel 755: $result.="\n $form_tag_start \t".
1.227 albertel 756: '<input type="hidden" name="submitted" value="yes" />';
757: # create a page header and exit
1.284 albertel 758: if ($env{'request.state'} eq "construct") {
759: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 760: }
761: # if we are viewing someone else preserve that info
1.284 albertel 762: if (defined $env{'form.grade_symb'}) {
1.227 albertel 763: foreach my $field ('symb','courseid','domain','username') {
764: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 765: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 766: }
767: }
768: } elsif ($target eq 'tex') {
1.319 foxr 769: $result .= 'INSERTTEXFRONTMATTERHERE';
770:
1.99 sakharuk 771: }
1.159 albertel 772: } elsif ($target eq 'edit') {
1.343 albertel 773: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 774: $Apache::lonxml::warnings_error_header=
775: &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 776: my $temp=&Apache::edit::insertlist($target,$token);
777: $result.=$temp;
778: } elsif ($target eq 'modified') {
779: $result=$token->[4];
780: $result.=&Apache::edit::handle_insert();
781: } else {
782: # page_start returned a starting result, delete it if we don't need it
783: $result = '';
1.99 sakharuk 784: }
1.159 albertel 785: return $result;
1.9 albertel 786: }
787:
788: sub end_problem {
1.159 albertel 789: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 790: my $result;
1.310 foxr 791:
1.321 albertel 792: if (!$Apache::lonxml::metamode) {
793: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 794: $Apache::lonxml::post_evaluate=0;
1.321 albertel 795: }
1.319 foxr 796:
797: if ($target eq 'tex') {
1.321 albertel 798: # Figure out the front matter and replace the
799: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
800: # this in end_problem because whether or not we display due
801: # dates depends on whether due dates have already been
802: # displayed in the problem parts.
803:
1.319 foxr 804: my $frontmatter = '';
805: my $startminipage = '';
806: if (not $env{'form.problem_split'}=~/yes/) {
807: $startminipage = '\begin{minipage}{\textwidth}';
808: }
809: my $id = $Apache::inputtags::part;
810: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
811: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
812: my @packages = split /,/,$packages;
813: my $allow_print_points = 0;
814: foreach my $partial_key (@packages) {
815: if ($partial_key=~m/^part_0$/) {
816: $allow_print_points=1;
817: }
818: }
819: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
820: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
821: if (lc($env{'course.'.$env{'request.course.id'}.
822: '.disableexampointprint'}) eq 'yes') {
823: $allow_print_points=0;
824: }
825: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
826: 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 ';
827: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
828: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
829:
830: # Figure out what the due date is and if we need to print
831: # it in the problem header. We have been logging the
832: # last due date written to file.
833:
834: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
835: my $duedate = POSIX::strftime("%c",localtime($duetime));
836: my $temp_file;
837: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
838:
839: # Figure out what the last printed due date is or set it
840: # to the epoch if no duedates have been printed.
841:
842: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
843: if (-e $filename) {
844: $temp_file = Apache::File->new($filename);
845: my @due_file = <$temp_file>;
846: $due_file_content = $due_file[$#due_file];
847: chomp $due_file_content;
848: }
849:
850: # We display the due date iff it is not the same as the last
851: # duedate in problem header ($due_file_content), and
852: # none of our parts displayed a duedate.
853: #
854: my $parts_with_displayduedate;
855: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
856: $parts_with_displayduedate =
857: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
858: } else {
859: $parts_with_displayduedate = 0;
860: }
861: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
862: $temp_file = Apache::File->new('>'.$filename);
863: print $temp_file "$duetime\n";
864: if (not $env{'request.symb'} =~ m/\.page_/) {
865: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
866: $frontmatter .= $begin_doc.
867: '\textit{Due date: '.$duedate.'} '.$toc_line;
868: } else {
869: $frontmatter.= $begin_doc.$toc_line;
870: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
871: }
872: } else {
873: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
874: }
875: } else {
876: if (not $env{'request.symb'} =~ m/\.page_/) {
877: $frontmatter .= $begin_doc.$toc_line;
878: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
879: } else {
880: $frontmatter .= '\vskip 1mm \\\\\\\\';
881: }
882: }
883: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
884: }
885:
1.159 albertel 886: my $status=$Apache::inputtags::status['-1'];
887: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
888: $target eq 'tex') {
1.249 albertel 889: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 890: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 891: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
892: &Apache::inputtags::grade;
1.324 albertel 893: } elsif ($status eq 'NEEDS_CHECKIN') {
894: # no need to grade, and don't want to hide data
1.249 albertel 895: } else {
896: # move any submission data to .hidden
897: &Apache::inputtags::hidealldata($Apache::inputtags::part);
898: }
1.159 albertel 899: } elsif ( ($target eq 'web' || $target eq 'tex') &&
900: $Apache::inputtags::part eq '0' &&
1.252 albertel 901: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 902: # if part is zero, no <part>s existed, so we need show the current
903: # grading status
904: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
905: $result.= $gradestatus;
906: }
907: if (
1.284 albertel 908: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 909: ($target eq 'answer') || ($target eq 'tex')
910: ) {
1.227 albertel 911: if ($target ne 'tex' &&
1.284 albertel 912: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 913: $result.="</form>";
1.348 albertel 914: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 915: }
916: if ($target eq 'web') {
1.346 albertel 917: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 918: } elsif ($target eq 'tex') {
1.178 sakharuk 919: my $endminipage = '';
1.284 albertel 920: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 921: $endminipage = '\end{minipage}';
922: }
1.284 albertel 923: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 924: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 925: } else {
1.262 sakharuk 926: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 927: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 928: $result .= $endminipage.'\end{document} ';
929: } else {
930: $result .= '';
931: }
1.159 albertel 932: }
933: }
934: }
935: if ($target eq 'grade') {
936: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
937: &finalize_storage();
938: }
1.284 albertel 939: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
940: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 941: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 942: # normally we get it from above, but in CSTR
1.172 albertel 943: # we always show answer mode too.
1.159 albertel 944: }
945: } elsif ($target eq 'meta') {
946: if ($Apache::inputtags::part eq '0') {
1.179 albertel 947: @Apache::inputtags::response=();
1.159 albertel 948: $result=&Apache::response::mandatory_part_meta;
949: }
1.215 albertel 950: $result.=&Apache::response::meta_part_order();
1.258 albertel 951: $result.=&Apache::response::meta_response_order();
1.159 albertel 952: } elsif ($target eq 'edit') {
953: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 954: $result .= &problem_edit_footer();
1.320 albertel 955: } elsif ($target eq 'modified') {
956: $result .= $token->[2];
957: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 958: }
1.155 albertel 959:
1.284 albertel 960: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 961: &Apache::inputtags::check_for_duplicate_ids();
962: }
1.204 albertel 963:
964: &reset_problem_globals('problem');
1.159 albertel 965:
966: return $result;
1.48 albertel 967: }
968:
1.108 albertel 969:
1.48 albertel 970: sub start_library {
1.159 albertel 971: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 972: my ($result,$form_tag_start);
1.371 albertel 973: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 974: &init_problem_globals('library');
975: $Apache::lonhomework::type='problem';
976: }
1.159 albertel 977: if ($target eq 'edit') {
1.343 albertel 978: ($result,$form_tag_start)=
979: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
980: 'Edit');
981: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 982: my $temp=&Apache::edit::insertlist($target,$token);
983: $result.=$temp;
984: } elsif ($target eq 'modified') {
985: $result=$token->[4];
986: $result.=&Apache::edit::handle_insert();
1.340 albertel 987: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 988: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 989: && $env{'request.state'} eq "construct" ) {
1.159 albertel 990: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 991: ($result,$form_tag_start)=
992: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
993: $name);
1.159 albertel 994: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 995: $result.=" \n $form_tag_start".
1.159 albertel 996: '<input type="hidden" name="submitted" value="yes" />';
997: $result.=&problem_web_to_edit_header($rndseed);
998: }
999: return $result;
1.48 albertel 1000: }
1001:
1002: sub end_library {
1.159 albertel 1003: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1004: my $result='';
1005: if ($target eq 'edit') {
1006: $result=&problem_edit_footer();
1.371 albertel 1007: } elsif ($target eq 'web'
1008: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1009: && $env{'request.state'} eq "construct") {
1.349 albertel 1010: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1011: }
1.371 albertel 1012: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1013: &reset_problem_globals('library');
1014: }
1.159 albertel 1015: return $result;
1.197 www 1016: }
1017:
1018: sub start_definetag {
1.326 albertel 1019: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1020:
1021: my $result;
1022:
1023: my $name = $token->[2]->{'name'};
1.326 albertel 1024: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1025: if ($name=~/^\//) {
1026: $result=
1027: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1028: } else {
1029: $result=
1030: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1031: }
1032: $skip=~s/\</\<\;/gs;
1033: $skip=~s/\>/\>\;/gs;
1034: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1035: return $result;
1036: }
1037:
1038: sub end_definetag {
1039: return '';
1.1 albertel 1040: }
1041:
1042: sub start_block {
1.201 albertel 1043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1044:
1045: my $result;
1.1 albertel 1046:
1.339 albertel 1047: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1048: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1049: my $code = $token->[2]->{'condition'};
1.201 albertel 1050: if (defined($code)) {
1.137 albertel 1051: if (!$Apache::lonxml::default_homework_loaded) {
1052: &Apache::lonxml::default_homework_load($safeeval);
1053: }
1.131 albertel 1054: $result = &Apache::run::run($code,$safeeval);
1055: &Apache::lonxml::debug("block :$code: returned :$result:");
1056: } else {
1057: $result='1';
1058: }
1059: if ( ! $result ) {
1.201 albertel 1060: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1061: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1062: }
1063: $result='';
1064: } elsif ($target eq 'edit') {
1065: $result .=&Apache::edit::tag_start($target,$token);
1066: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1067: $token,40);
1068: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1069: } elsif ($target eq 'modified') {
1070: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1071: $safeeval,'condition');
1072: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1073: }
1.131 albertel 1074: return $result;
1.1 albertel 1075: }
1076:
1077: sub end_block {
1.167 www 1078: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1079: my $result;
1080: if ($target eq "edit") {
1081: $result.= &Apache::edit::tag_end($target,$token,'');
1082: }
1083: return $result;
1084: }
1085:
1086: sub start_languageblock {
1.201 albertel 1087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1088:
1089: my $result;
1090:
1.339 albertel 1091: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1092: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1093: my $include = $token->[2]->{'include'};
1094: my $exclude = $token->[2]->{'exclude'};
1095: my %languages=&Apache::loncommon::display_languages();
1096: $result='1';
1097: if ($include) {
1098: $result='';
1099: foreach (split(/\,/,$include)) {
1100: if ($languages{$_}) { $result='1'; }
1101: }
1102: }
1103: if ($exclude) {
1104: foreach (split(/\,/,$exclude)) {
1105: if ($languages{$_}) { $result='0'; }
1106: }
1107: }
1108: if ( ! $result ) {
1109: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1110: $style);
1111: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1112: }
1113: $result='';
1.167 www 1114: } elsif ($target eq 'edit') {
1115: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1116: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1117: $token,40);
1.211 albertel 1118: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1119: $token,40);
1120: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1121: } elsif ($target eq 'modified') {
1122: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1123: $safeeval,'include',
1124: 'exclude');
1.167 www 1125: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1126: }
1127: return $result;
1128: }
1129:
1130: sub end_languageblock {
1.170 www 1131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1132: my $result;
1.201 albertel 1133: if ($target eq "edit") {
1.170 www 1134: $result.= &Apache::edit::tag_end($target,$token,'');
1135: }
1136: return $result;
1137: }
1138:
1139: sub start_instructorcomment {
1.201 albertel 1140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1141:
1142: my $result;
1143:
1.339 albertel 1144: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1145: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1146: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1147: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1148: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1149: $parser,$style);
1.170 www 1150: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1151: }
1152: $result='';
1153: } elsif ($target eq 'edit') {
1154: $result .=&Apache::edit::tag_start($target,$token);
1155: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1156: }
1157: return $result;
1158: }
1159:
1160: sub end_instructorcomment {
1.159 albertel 1161: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1162: my $result;
1163: if ($target eq "edit") {
1164: $result.= &Apache::edit::tag_end($target,$token,'');
1165: }
1166: return $result;
1.4 tsai 1167: }
1168:
1169: sub start_while {
1.326 albertel 1170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1171:
1.160 albertel 1172: my $result;
1.339 albertel 1173: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1174: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1175: my $code = $token->[2]->{'condition'};
1.4 tsai 1176:
1.160 albertel 1177: push( @Apache::structuretags::whileconds, $code);
1178: if (!$Apache::lonxml::default_homework_loaded) {
1179: &Apache::lonxml::default_homework_load($safeeval);
1180: }
1181: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1182: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1183: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1184: push( @Apache::structuretags::whileline, $token->[5]);
1185: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1186: if ( $result ) {
1187: &Apache::lonxml::newparser($parser,\$bodytext);
1188: }
1189: } elsif ($target eq 'edit') {
1190: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1191: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1192: $token,40);
1193: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1194: } elsif ($target eq 'modified') {
1195: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1196: $safeeval,'condition');
1197: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1198: }
1.160 albertel 1199: return $result;
1.4 tsai 1200: }
1201:
1202: sub end_while {
1.159 albertel 1203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1204: my $result;
1205:
1.339 albertel 1206: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1207: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1208: my $code = pop(@Apache::structuretags::whileconds);
1209: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1210: my $line = pop(@Apache::structuretags::whileline);
1211: my $return = &Apache::run::run($code,$safeeval);
1212: my $starttime=time;
1213: my $error=0;
1214: while ($return) {
1215: if (time-$starttime >
1216: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1217: #$return = 0; $error=1; next;
1.161 albertel 1218: }
1219: $result.=&Apache::scripttag::xmlparse($bodytext);
1220: $return = &Apache::run::run($code,$safeeval);
1221: }
1222: if ($error) {
1.270 albertel 1223: &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 1224: }
1225: } elsif ($target eq "edit") {
1226: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1227: }
1.160 albertel 1228: return $result;
1.1 albertel 1229: }
1.6 tsai 1230:
1.160 albertel 1231: # <randomlist show="1">
1.6 tsai 1232: # <tag1>..</tag1>
1233: # <tag2>..</tag2>
1234: # <tag3>..</tag3>
1.160 albertel 1235: # ...
1.6 tsai 1236: # </randomlist>
1237: sub start_randomlist {
1.326 albertel 1238: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1239: my $result;
1.339 albertel 1240: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1241: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1242: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1243: my $b_parser= HTML::LCParser->new(\$body);
1244: $b_parser->xml_mode(1);
1245: $b_parser->marked_sections(1);
1.159 albertel 1246: my $b_tok;
1247: my @randomlist;
1248: my $list_item;
1249: while($b_tok = $b_parser->get_token() ) {
1250: if($b_tok->[0] eq 'S') { # start tag
1251: # get content of the tag until matching end tag
1252: # get all text upto the matching tag
1253: # and push the content into @randomlist
1254: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1255: $b_parser);
1256: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1257: push(@randomlist,$list_item);
1258: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1259: # $list_item</b>";
1260: }
1261: if($b_tok->[0] eq 'T') { # text
1262: # what to do with text in between tags?
1263: # print "<b>TEXT $b_tok->[1]</b><br />";
1264: }
1265: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1266: # print "<b>END-TAG $b_tok->[1]</b><br />";
1267: # }
1268: }
1.303 albertel 1269: if (@randomlist) {
1270: my @idx_arr = (0 .. $#randomlist);
1271: &Apache::structuretags::shuffle(\@idx_arr);
1272: my $bodytext = '';
1273: my $show=$#randomlist;
1274: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1275: $showarg--;
1276: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1277: for(0 .. $show) {
1278: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1279: }
1280: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1281: }
1282: } elsif ($target eq 'edit' ) {
1283: $result .=&Apache::edit::tag_start($target,$token);
1284: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1285: $token,5);
1286: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1287: } elsif ($target eq 'modified' ) {
1288: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1289: $safeeval,'show');
1290: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1291: }
1292: return $result;
1.7 tsai 1293: }
1294:
1295: sub shuffle {
1296: my $a=shift;
1297: my $i;
1.303 albertel 1298: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1299: &Apache::response::pushrandomnumber();
1.159 albertel 1300: for($i=@$a;--$i;) {
1301: my $j=int(&Math::Random::random_uniform() * ($i+1));
1302: next if $i == $j;
1303: @$a[$i,$j] = @$a[$j,$i];
1304: }
1.251 albertel 1305: &Apache::response::poprandomnumber();
1.7 tsai 1306: }
1.6 tsai 1307: }
1308:
1309: sub end_randomlist {
1.159 albertel 1310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1311: my $result;
1312: if ($target eq 'edit' ) {
1313: $result=&Apache::edit::tag_end($target,$token,
1314: 'End Randomly Parsed Block');
1315: }
1316: return $result;
1.6 tsai 1317: }
1318:
1.283 albertel 1319: sub ordered_show_check {
1320: my $last_part=$Apache::inputtags::partlist[-2];
1321: my $in_order=
1322: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1323: my $in_order_show=1;
1324: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1325: $in_order_show=&Apache::response::check_status($last_part);
1326: }
1327: return $in_order_show;
1328: }
1329:
1.11 albertel 1330: sub start_part {
1.326 albertel 1331: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1332: if (!$Apache::lonxml::metamode) {
1333: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1334: # duedates.
1335: }
1.159 albertel 1336: my $result='';
1337: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1338: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1339: $Apache::inputtags::part=$id;
1.177 albertel 1340: push(@Apache::inputtags::partlist,$id);
1341: @Apache::inputtags::response=();
1.159 albertel 1342: @Apache::inputtags::previous=();
1343: @Apache::inputtags::previous_version=();
1.241 albertel 1344: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1345: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1346: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1347: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1348: my $in_order_show=&ordered_show_check();
1.214 albertel 1349: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1350: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1351: &Apache::run::run($expression,$safeeval);
1.159 albertel 1352:
1353: if ($target eq 'meta') {
1.224 www 1354: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1355: return &Apache::response::mandatory_part_meta.
1356: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1357: } elsif ($target eq 'web' || $target eq 'grade' ||
1358: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1359: if ($hidden || !$in_order_show) {
1.326 albertel 1360: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1361: } else {
1362: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1363: push (@Apache::inputtags::status,$status);
1364: my $expression='$external::datestatus="'.$status.'";';
1365: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1366: &Apache::run::run($expression,$safeeval);
1.284 albertel 1367: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1368: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1369: }
1.216 albertel 1370: if (( $status eq 'CLOSED' ) ||
1371: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1372: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1373: ( $status eq 'BANNED') ||
1374: ( $status eq 'UNAVAILABLE') ||
1375: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1376: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1377: $style);
1.159 albertel 1378: if ( $target eq "web" ) {
1.211 albertel 1379: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1380: } elsif ( $target eq 'tex' ) {
1.284 albertel 1381: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1382: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1383: } else {
1.211 albertel 1384: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1385: }
1.159 albertel 1386: }
1387: } else {
1388: if ($target eq 'tex') {
1.284 albertel 1389: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1390: if ($$tagstack[-2] eq 'td') {
1391: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1392: } else {
1393: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1394: }
1.195 sakharuk 1395: }
1.159 albertel 1396: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1397: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1398: my @allkeys = split /,/,$allkeys;
1399: my $allow_print_points = 0;
1400: foreach my $partial_key (@allkeys) {
1.230 albertel 1401: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1402: if ($1 ne '0') {$allow_print_points=1;}
1403: }
1404: }
1.275 albertel 1405: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1406: if (defined($maxtries) && $maxtries < 0) {
1407: $allow_print_points=0;
1408: }
1.302 albertel 1409: if (lc($env{'course.'.$env{'request.course.id'}.
1410: '.disableexampointprint'}) eq 'yes') {
1411: $allow_print_points=0;
1412: }
1.222 sakharuk 1413: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1414: } elsif ($target eq 'web') {
1.356 www 1415: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1416: }
1417: }
1418: }
1419: } elsif ($target eq 'edit') {
1420: $result.=&Apache::edit::tag_start($target,$token);
1421: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1422: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1423: ' '.
1424: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1425: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1426: } elsif ($target eq 'modified') {
1427: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1428: $safeeval,'id','display');
1.159 albertel 1429: if ($constructtag) {
1.225 albertel 1430: #limiting ids to only letters numbers, and space
1.224 www 1431: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1432: $result = &Apache::edit::rebuild_tag($token);
1433: $result.=&Apache::edit::handle_insert();
1434: }
1435: }
1436: return $result;
1.11 albertel 1437: }
1438:
1439: sub end_part {
1.159 albertel 1440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1441: &Apache::lonxml::debug("in end_part $target ");
1442: my $status=$Apache::inputtags::status['-1'];
1443: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1444: my $in_order_show=&ordered_show_check();
1.321 albertel 1445: my $result;
1446: if (!$Apache::lonxml::metamode) {
1447: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1448: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1449: }
1.312 albertel 1450: if ($target eq 'grade') {
1.249 albertel 1451: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1452: !$hidden && $in_order_show) {
1.311 foxr 1453: $result.=&Apache::inputtags::grade;
1.249 albertel 1454: } else {
1455: # move any submission data to .hidden
1456: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1457: }
1.283 albertel 1458: } elsif (($target eq 'web' || $target eq 'tex') &&
1459: !$hidden && $in_order_show) {
1.159 albertel 1460: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1461: $target);
1.212 albertel 1462: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1463: $gradestatus='';
1464: }
1.311 foxr 1465: $result.=$gradestatus;
1.265 sakharuk 1466: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1467: } elsif ($target eq 'edit') {
1.311 foxr 1468: $result.=&Apache::edit::end_table();
1.322 albertel 1469: } elsif ($target eq 'modified') {
1470: $result .= $token->[2];
1471: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1472: }
1473: pop @Apache::inputtags::status;
1474: $Apache::inputtags::part='';
1.295 albertel 1475: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1476: return $result;
1.11 albertel 1477: }
1.1 albertel 1478:
1.25 albertel 1479: sub start_preduedate {
1.326 albertel 1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1481: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1482: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1483: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1484: if (!$Apache::lonhomework::scantronmode &&
1485: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1486: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1487: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1488: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1489: }
1.24 albertel 1490: }
1.159 albertel 1491: return '';
1.24 albertel 1492: }
1493:
1.25 albertel 1494: sub end_preduedate {
1.159 albertel 1495: return '';
1.24 albertel 1496: }
1497:
1.369 foxr 1498: # In all the modes where <postanswerdate> text is
1499: # displayable, all we do is eat up the text between the start/stop
1500: # tags if the conditions are not right to display it.
1.25 albertel 1501: sub start_postanswerdate {
1.326 albertel 1502: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1503: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1504: &Apache::lonnet::allowed('pav',
1505: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1506: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1507: $target eq 'tex' ) {
1.300 albertel 1508: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1509: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1510: (($target eq 'tex') && !$pav)) {
1.326 albertel 1511: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1512: }
1513: }
1514: return '';
1.24 albertel 1515: }
1516:
1.25 albertel 1517: sub end_postanswerdate {
1.159 albertel 1518: return '';
1.24 albertel 1519: }
1520:
1.25 albertel 1521: sub start_notsolved {
1.326 albertel 1522: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1523: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1524: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1525: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1526: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1527: if ($gradestatus =~ /^correct/ &&
1528: &Apache::response::show_answer()) {
1.159 albertel 1529: &Apache::lonxml::debug("skipping");
1.326 albertel 1530: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1531: }
1.24 albertel 1532: }
1.159 albertel 1533: return '';
1.24 albertel 1534: }
1535:
1.25 albertel 1536: sub end_notsolved {
1.159 albertel 1537: return '';
1.24 albertel 1538: }
1539:
1540: sub start_solved {
1.326 albertel 1541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1542: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1543: $target eq 'tex') {
1544: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1545: if ($gradestatus !~ /^correct/ ||
1546: !&Apache::response::show_answer()) {
1.326 albertel 1547: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1548: }
1.24 albertel 1549: }
1.159 albertel 1550: return '';
1.24 albertel 1551: }
1552:
1553: sub end_solved {
1.248 albertel 1554: return '';
1555: }
1556:
1557: sub start_problemtype {
1.326 albertel 1558: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1559: my $result;
1.339 albertel 1560: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1561: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1562: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1563: if (!defined($mode)) { $mode='show'; }
1564: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1565: my $found=0;
1566: foreach my $type (split(',',$for)) {
1567: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1568: }
1569: if ($mode eq 'show' && !$found) {
1.326 albertel 1570: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1571: }
1572: if ($mode eq 'hide' && $found) {
1.326 albertel 1573: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1574: }
1575: } elsif ($target eq 'edit') {
1576: $result .=&Apache::edit::tag_start($target,$token);
1577: $result.=&Apache::edit::select_arg('Mode:','mode',
1578: [['show','Show'],
1579: ['hide','Hide']]
1580: ,$token);
1581: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1582: [ ['exam','Exam/Quiz Problem'],
1583: ['survey','Survey'],
1584: ['problem','Homework Problem'] ]
1585: ,$token);
1586: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1587: } elsif ($target eq 'modified') {
1588: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1589: $safeeval,'mode','for');
1590: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1591: }
1592: return $result;
1593: }
1594:
1595: sub end_problemtype {
1.159 albertel 1596: return '';
1.24 albertel 1597: }
1.34 albertel 1598:
1599: sub start_startouttext {
1.159 albertel 1600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1601: my @result=(''.'');
1602: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1603: return (@result);
1.34 albertel 1604: }
1.159 albertel 1605:
1.34 albertel 1606: sub end_startouttext {
1.326 albertel 1607: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1608: my $result='';
1609: my $text='';
1610:
1611: if ($target eq 'edit') {
1.326 albertel 1612: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1613: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1614: <td>".&mt('Delete:').
1.159 albertel 1615: &Apache::edit::deletelist($target,$token)
1616: ."</td>
1.42 albertel 1617: <td>".
1.159 albertel 1618: &Apache::edit::insertlist($target,$token).
1.362 albertel 1619: '</td><td align="right" valign="top">' .
1620: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1621: &Apache::edit::end_row().
1.362 albertel 1622: &Apache::edit::start_spanning_row()."\n".
1.255 www 1623: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1624: }
1625: if ($target eq 'modified') {
1.219 albertel 1626: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1627: }
1628: if ($target eq 'tex') {
1629: $result .= '\noindent ';
1630: }
1631: return $result;
1.34 albertel 1632: }
1.159 albertel 1633:
1.34 albertel 1634: sub start_endouttext {
1.159 albertel 1635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1636: my $result='';
1637: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1638: if ($target eq "modified") {
1639: $result='<endouttext />'.
1640: &Apache::edit::handle_insertafter('startouttext'); }
1641: return $result;
1.34 albertel 1642: }
1.159 albertel 1643:
1.34 albertel 1644: sub end_endouttext {
1.159 albertel 1645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1646: my @result=('','');
1647: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1648: return (@result);
1.34 albertel 1649: }
1.159 albertel 1650:
1.45 albertel 1651: sub delete_startouttext {
1.326 albertel 1652: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1653: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1654: my $text=$$parser['-1']->get_text("/endouttext");
1655: my $ntoken=$$parser['-1']->get_token();
1656: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1657: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1658: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1659: # they did the last time round
1660: &Apache::lonxml::increasedepth($ntoken);
1661: &Apache::lonxml::decreasedepth($ntoken);
1662: return 1;
1.193 www 1663: }
1664:
1665: sub start_simpleeditbutton {
1666: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1667: my $result='';
1.284 albertel 1668: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1669: ($target eq 'web') &&
1.330 albertel 1670: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1671: my $url=$env{'request.noversionuri'};
1.193 www 1672: $url=~s/\?.*$//;
1.367 albertel 1673: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1674: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1675: '<a href="'.$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 1676: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1677: }
1678: return $result;
1679: }
1680:
1681: sub end_simpleeditbutton {
1682: return '';
1.45 albertel 1683: }
1.34 albertel 1684:
1.1 albertel 1685: 1;
1686: __END__
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