Annotation of loncom/homework/structuretags.pm, revision 1.373
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.373 ! albertel 4: # $Id: structuretags.pm,v 1.372 2006/12/11 01:07:07 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,$safeeval);
89: }
90:
1.344 albertel 91: my %body_args;
92: if (defined($found{'html'})) {
93: $body_args{'skip_phases'}{'head'}=1;
94: } else {
1.343 albertel 95:
1.345 albertel 96: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 97:
1.336 albertel 98: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 99: if ($css_href =~ /\S/) {
100: &Apache::lonxml::extlink($css_href);
1.343 albertel 101: $extra_head .=
1.335 albertel 102: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
103: }
1.327 albertel 104: if ($target eq 'edit') {
1.343 albertel 105: $extra_head.=&Apache::edit::js_change_detection().
106: "<script type=\"text/javascript\">\n".
107: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
108: &Apache::loncommon::browser_and_searcher_javascript().
109: "\n</script>\n";
110: }
1.159 albertel 111: }
1.343 albertel 112:
1.344 albertel 113: if (defined($found{'body'})) {
114: $body_args{'skip_phases'}{'body'}=1;
115: } elsif (!defined($found{'body'})
116: && $env{'request.state'} eq 'construct') {
1.343 albertel 117: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 118: # no extra args to bodytag
1.297 albertel 119: }
1.272 albertel 120: } elsif (!defined($found{'body'})) {
1.343 albertel 121: my %add_entries;
1.159 albertel 122: my $background=&Apache::lonxml::get_param('background',$parstack,
123: $safeeval);
1.343 albertel 124: if ($background ne '' ) {
125: $add_entries{'background'} = $background;
126: }
1.344 albertel 127:
1.290 albertel 128: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
129: $safeeval);
1.344 albertel 130: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
131:
132: $body_args{'bgcolor'} = $bgcolor;
133: $body_args{'no_title'} = 1;
134: $body_args{'force_register'} = 1;
135: $body_args{'add_entries'} = \%add_entries;
136: }
1.365 albertel 137: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 138: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
139: \%body_args);
140:
141: if (!defined($found{'body'})
142: && $env{'request.state'} ne 'construct'
143: && ($target eq 'web' || $target eq 'webgrade')) {
144:
1.367 albertel 145: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 146: if ($symb eq '' && !$publicuser) {
147: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
148: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
149: $page_start .= $help;
1.159 albertel 150: }
1.344 albertel 151: }
152:
153: if (!defined($found{'body'})) {
1.343 albertel 154: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 155: }
1.344 albertel 156:
1.159 albertel 157: my $form_tag_start;
158: if (!defined($found{'form'})) {
1.337 albertel 159: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 160: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 161: $form_tag_start.=$uri.'" ';
162: if ($target eq 'edit') {
163: $form_tag_start.=&Apache::edit::form_change_detection();
164: }
1.368 albertel 165: $form_tag_start.='>'."\n";
1.355 albertel 166:
167: my $symb=&Apache::lonnet::symbread();
168: if ($symb =~ /\S/) {
169: $symb=
170: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
171: $form_tag_start.=
1.368 albertel 172: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 173: }
1.159 albertel 174: }
1.343 albertel 175: return ($page_start,$form_tag_start);
1.105 albertel 176: }
177:
1.141 matthew 178: #use Time::HiRes();
1.105 albertel 179: sub get_resource_name {
1.159 albertel 180: my ($parstack,$safeeval)=@_;
1.204 albertel 181: if (defined($Apache::lonhomework::name)) {
182: return $Apache::lonhomework::name;
183: }
1.367 albertel 184: my ($symb)=&Apache::lonnet::whichuser();
1.279 albertel 185: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 186: if ($name eq '') {
187: $name=&Apache::lonnet::EXT('resource.title');
188: if ($name eq 'con_lost') { $name = ''; }
189: }
1.204 albertel 190: if ($name!~/\S+/) {
1.284 albertel 191: $name=$env{'request.uri'};
1.205 albertel 192: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 193: }
1.159 albertel 194: $Apache::lonhomework::name=$name;
195: return $name;
1.105 albertel 196: }
197:
198: sub setup_rndseed {
1.159 albertel 199: my ($safeeval)=@_;
200: my $rndseed;
1.367 albertel 201: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 202: if ($env{'request.state'} eq "construct"
203: || $symb eq ''
204: || $Apache::lonhomework::type eq 'practice'
205: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 206: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 207: ['rndseed']);
1.284 albertel 208: $rndseed=$env{'form.rndseed'};
1.159 albertel 209: if (!$rndseed) {
1.162 albertel 210: $rndseed=$Apache::lonhomework::history{'rndseed'};
211: if (!$rndseed) {
212: $rndseed=time;
213: }
1.284 albertel 214: $env{'form.rndseed'}=$rndseed;
1.162 albertel 215: }
1.284 albertel 216: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
217: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 218: srand(time);
219: $rndseed=int(rand(2100000000));
1.284 albertel 220: $env{'form.rndseed'}=$rndseed;
221: delete($env{'form.resetdata'});
222: delete($env{'form.newrandomization'});
1.159 albertel 223: }
1.187 albertel 224: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 225: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 226: }
1.247 albertel 227: if ($Apache::lonhomework::history{'resource.CODE'}) {
228: $rndseed=&Apache::lonnet::rndseed();
229: }
1.221 albertel 230: if ($safeeval) {
231: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 232: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 233: }
1.159 albertel 234: }
235: return $rndseed;
1.105 albertel 236: }
237:
1.268 albertel 238: sub remember_problem_state {
239: return '
1.284 albertel 240: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
241: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
242: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 243: }
244:
1.105 albertel 245: sub problem_edit_header {
1.268 albertel 246: return '<input type="hidden" name="submitted" value="edit" />'.
247: &Apache::structuretags::remember_problem_state().'
1.210 albertel 248: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 249: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 250: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 251: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
252: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
253: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 254: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 255: .'</td></tr></table>'.
1.282 albertel 256: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 257: }
258:
259: sub problem_edit_footer {
1.210 albertel 260: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 261: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 262: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 263: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 264: }
265:
1.235 albertel 266: sub option {
267: my ($value,$name) = @_;
268: my $result ="<option value='".$value."' ";
1.284 albertel 269: if ($env{'form.'.$name} eq $value) {
1.235 albertel 270: $result.=" selected='on' ";
271: }
272: $result.='>';
273: return $result;
274: }
275:
1.105 albertel 276: sub problem_web_to_edit_header {
1.159 albertel 277: my ($rndseed)=@_;
1.313 albertel 278: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 ! albertel 279: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 280: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 281: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
282: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 283: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 284: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 285: $rndseed.'"
1.270 albertel 286: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 287: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 288: my $show_all_foils_text =
289: ($Apache::lonhomework::parsing_a_task) ?
290: &mt(' Show All Instances')
291: : &mt(' Show All Foils');
292:
1.284 albertel 293: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.371 albertel 294: $result.= ' />'.$show_all_foils_text.'</label>'.
1.228 www 295: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 296: '<hr />';
1.313 albertel 297: if (!$Apache::lonhomework::parsing_a_task) {
298: $result.="
1.235 albertel 299: <nobr>
300: Problem Status:
301: <select name='problemstate'>
1.270 albertel 302: <option value=''></option>
1.235 albertel 303: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
304: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
305: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
306: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
307: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
308: </select>
309: </nobr>
310: <nobr>
311: Problem Type:
312: <select name='problemtype'>
1.270 albertel 313: <option value=''></option>
1.242 albertel 314: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
315: ".&option('problem','problemtype').&mt("Homework problem")."</option>
316: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 317: </select>
318: </nobr>
319: <nobr>
320: Feedback Mode:
321: <select name='problemstatus'>
322: <option value=''></option>
1.242 albertel 323: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
324: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 325: </select>
326: </nobr>
1.242 albertel 327: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 328: <hr />";
1.313 albertel 329: my $numtoanalyze=$env{'form.numtoanalyze'};
330: if (!$numtoanalyze) { $numtoanalyze=20; }
331: $result.= '<input type="submit" name="problemmode" value='.
332: &mt('"Calculate answers').'" /> for
1.136 albertel 333: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 334: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
335: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 336: '',undef,undef,300).
1.210 albertel 337: '<hr />';
1.313 albertel 338: }
1.159 albertel 339: return $result;
1.48 albertel 340: }
341:
1.65 albertel 342: sub initialize_storage {
1.357 albertel 343: my ($given_symb) = @_;
1.353 albertel 344: undef(%Apache::lonhomework::results);
345: undef(%Apache::lonhomework::history);
1.357 albertel 346: my ($symb,$courseid,$domain,$name) =
1.367 albertel 347: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 348:
349: # anonymous users (CODEd exams) have no data
350: if ($name eq 'anonymous'
351: && !defined($domain)) {
352: return;
353: }
354:
1.333 albertel 355: if ($env{'request.state'} eq 'construct'
356: || $symb eq ''
357: || $Apache::lonhomework::type eq 'practice') {
358:
359: my $namespace = $symb || $env{'request.uri'};
360: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
361: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
362: $env{'form.newrandomization'} eq &mt('New Randomization')) {
363: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
364: &Apache::lonxml::debug("Attempt reset");
365: }
1.159 albertel 366: %Apache::lonhomework::history=
1.333 albertel 367: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 368: my ($temp)=keys %Apache::lonhomework::history ;
369: &Apache::lonxml::debug("Return message of $temp");
370: } else {
371: %Apache::lonhomework::history=
372: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
373: }
1.353 albertel 374:
1.159 albertel 375: #ignore error conditions
1.67 albertel 376: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 377: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 378: }
379:
380: # -------------------------------------------------------------finalize_storage
381: # Stores away the result has to a student's environment
382: # checks form.grade_ for specific values, other wises stores
383: # to the running users environment
1.285 raeburn 384: # Will increment totals for attempts, students, and corrects
385: # if running user has student role.
1.65 albertel 386: sub finalize_storage {
1.357 albertel 387: my ($given_symb) = @_;
1.159 albertel 388: my $result;
1.289 albertel 389: if (%Apache::lonhomework::results) {
1.323 albertel 390: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
391: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 392: my ($symb,$courseid,$domain,$name) =
1.367 albertel 393: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 394: if ($env{'request.state'} eq 'construct'
395: || $symb eq ''
396: || $Apache::lonhomework::type eq 'practice') {
397: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 398: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 399: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 400: $namespace,'',$domain,$name);
1.159 albertel 401: &Apache::lonxml::debug('Construct Store return message:'.$result);
402: } else {
403: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
404: $symb,$courseid,$domain,$name);
405: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 406: if ($env{'request.role'} =~/^st/) {
407: &store_aggregates($symb,$courseid);
408: }
1.159 albertel 409: }
1.323 albertel 410: } else {
411: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 412: }
1.159 albertel 413: return $result;
1.65 albertel 414: }
1.289 albertel 415: use Data::Dumper;
1.65 albertel 416:
1.285 raeburn 417: # -------------------------------------------------------------store_aggregates
418: # Sends hash of values to be incremented in nohist_resourcetracker.db
419: # for the course. Increments total number of attempts, unique students
420: # and corrects for each part for an instance of a problem, as appropriate.
421: sub store_aggregates {
422: my ($symb,$courseid) = @_;
1.286 albertel 423: my %aggregate;
424: my @parts;
1.288 albertel 425: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
426: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 427: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 428: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 429: push(@parts, $1);
1.285 raeburn 430: }
431: }
1.286 albertel 432: foreach my $part (@parts) {
433: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
434: eq 'APPROX_ANS' ||
435: $Apache::lonhomework::results{'resource.'.$part.'.award'}
436: eq 'EXACT_ANS') {
1.287 albertel 437: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 438: }
1.286 albertel 439: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 440: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 441: } else {
1.293 albertel 442: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 443: if ($last_reset) {
1.293 albertel 444: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 445: $aggregate{$symb."\0".$part."\0users"} = 1;
446: }
447: }
1.285 raeburn 448: }
1.287 albertel 449: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 450: }
1.292 raeburn 451: if (keys (%aggregate) > 0) {
1.289 albertel 452: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 453: $cdomain,$cname);
454: }
455: }
1.289 albertel 456:
1.65 albertel 457: sub checkout_msg {
1.211 albertel 458: my %lt=&Apache::lonlocal::texthash(
459: 'resource'=>'The resource needs to be checked out',
460: '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.',
461: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
462: 'checkout'=>'Check out Exam for Viewing',
463: 'checkout?'=>'Check out Exam?');
1.352 albertel 464: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 465: return (<<ENDCHECKOUT);
1.211 albertel 466: <h2>$lt{'resource'}</h2>
467: <p>$lt{'id_expln'}</p>
468: <font color="red">
469: <p>$lt{'warning'}</p>
1.91 albertel 470: </font>
1.352 albertel 471: <form name="checkout" method="POST" action="$uri">
1.91 albertel 472: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 473: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 474: </form>
475: ENDCHECKOUT
476: }
477:
1.252 albertel 478: sub firstaccess_msg {
1.253 albertel 479: my ($time,$symb)=@_;
480: my ($map)=&Apache::lonnet::decode_symb($symb);
481: my $foldertitle=&Apache::lonnet::gettitle($map);
482: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 483: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 484: return (<<ENDCHECKOUT);
1.253 albertel 485: <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 486: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 487: <input type="hidden" name="markaccess" value="yes" />
488: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
489: </form>
490: ENDCHECKOUT
491: }
492:
1.204 albertel 493: sub init_problem_globals {
494: my ($type)=@_;
495: #initialize globals
1.308 foxr 496: # For problems, we start out in part 0 (outside a <part> tag).
497: # and part 0 is used to describe the main body of the <problem>
498: #
1.204 albertel 499: if ($type eq 'problem') {
500: $Apache::inputtags::part='0';
501: @Apache::inputtags::partlist=('0');
1.266 albertel 502: $Apache::lonhomework::problemstatus=&get_problem_status('0');
503: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 504:
1.266 albertel 505: } elsif ($type eq 'library') {
1.204 albertel 506: $Apache::inputtags::part='';
507: @Apache::inputtags::partlist=();
508: $Apache::lonhomework::problemstatus='';
1.266 albertel 509: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 510:
1.304 albertel 511: } elsif ($type eq 'Task') {
512: $Apache::inputtags::part='0';
513: @Apache::inputtags::partlist=('0');
514: $Apache::lonhomework::problemstatus='';
515: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 516: }
517: @Apache::inputtags::responselist = ();
518: @Apache::inputtags::importlist = ();
519: @Apache::inputtags::previous=();
520: @Apache::inputtags::previous_version=();
521: $Apache::structuretags::printanswer='No';
522: @Apache::structuretags::whileconds=();
523: @Apache::structuretags::whilebody=();
524: @Apache::structuretags::whileline=();
525: $Apache::lonhomework::scantronmode=0;
526: undef($Apache::lonhomework::name);
1.358 albertel 527: undef($Apache::lonhomework::default_type);
528: undef($Apache::lonhomework::type);
1.204 albertel 529: }
530:
531: sub reset_problem_globals {
532: my ($type)=@_;
533: undef(%Apache::lonhomework::history);
534: undef(%Apache::lonhomework::results);
535: undef($Apache::inputtags::part);
1.208 albertel 536: #don't undef this, lonhomework.pm takes care of this, we use this to
537: #detect if we try to do 2 problems in one file
538: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 539: undef($Apache::lonhomework::name);
1.358 albertel 540: undef($Apache::lonhomework::default_type);
541: undef($Apache::lonhomework::type);
542: undef($Apache::lonhomework::scantronmode);
543: undef($Apache::lonhomework::problemstatus);
544: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 545: }
546:
1.241 albertel 547: sub set_problem_state {
1.240 albertel 548: my ($part)=@_;
1.284 albertel 549: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 550: $Apache::lonhomework::history{"resource.$part.solved"}=
551: 'correct_by_student';
552: }
553: }
554:
1.241 albertel 555: sub get_problem_status {
556: my ($part)=@_;
1.267 albertel 557: my $problem_status;
1.284 albertel 558: if ($env{'request.state'} eq 'construct' &&
559: defined($env{'form.problemstatus'})) {
560: $problem_status=$env{'form.problemstatus'};
1.267 albertel 561: } else {
562: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
563: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 564: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 565: }
566: return $problem_status;
567: }
568:
1.9 albertel 569: sub start_problem {
1.326 albertel 570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 571:
1.311 foxr 572: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 573: if (!$Apache::lonxml::metamode) {
574: &Apache::lonxml::startredirection();
575: }
1.311 foxr 576:
1.308 foxr 577: # Problems don't nest and we don't allow more than one <problem> in
578: # a .problem file.
579: #
1.184 albertel 580: if ( $Apache::inputtags::part ne '' ||
581: $Apache::lonhomework::parsing_a_problem) {
582: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 583: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 584: return '';
585: }
1.184 albertel 586:
587: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 588: &init_problem_globals('problem');
1.166 albertel 589:
1.284 albertel 590: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 591: $Apache::lonhomework::scantronmode=1;
592: }
1.161 albertel 593:
1.159 albertel 594: if ($target ne 'analyze') {
1.284 albertel 595: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 596: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 597: if (($env{'request.state'} eq 'construct') &&
598: defined($env{'form.problemtype'})) {
599: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 600: }
1.332 albertel 601: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 602: }
1.164 albertel 603: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 604: my $uri=$env{'request.uri'};
1.159 albertel 605: if ($uri=~/\.(\w+)$/) {
606: $Apache::lonhomework::type=$1;
607: &Apache::lonxml::debug("Using type of $1");
608: } else {
609: $Apache::lonhomework::type='problem';
610: &Apache::lonxml::debug("Using default type, problem, :$uri:");
611: }
1.87 albertel 612: }
1.301 albertel 613: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 614:
1.363 albertel 615: &initialize_storage();
1.366 albertel 616: if ($target eq 'web') {
617: &Apache::lonxml::debug(" grading history ");
618: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
619: }
1.363 albertel 620:
1.159 albertel 621: #added vars to the scripting enviroment
1.213 albertel 622: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 623: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 624: &Apache::run::run($expression,$safeeval);
1.159 albertel 625: my $status;
626: my $accessmsg;
627:
1.343 albertel 628: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 629: my ($result,$form_tag_start);
1.354 albertel 630: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
631: || $target eq 'edit') {
1.350 albertel 632: ($result,$form_tag_start) =
633: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
634: $name);
635: }
636:
1.284 albertel 637: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 638:
639: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
640: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
641: $target eq 'tex') {
642: #handle exam checkout
643: if ($Apache::lonhomework::type eq 'exam') {
644: my $token=
645: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 646: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 647: $token=&Apache::lonxml::maketoken();
648: $Apache::lonhomework::history{"resource.0.outtoken"}=
649: $token;
650: }
1.343 albertel 651: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 652: }
1.284 albertel 653: if ($env{'form.markaccess'}) {
1.252 albertel 654: &Apache::lonnet::set_first_access('map');
655: }
1.159 albertel 656: #handle rand seed in construction space
657: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 658: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 659: if ($env{'request.state'} ne "construct" &&
660: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 661: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
662: $rndseed.'" />'.
663: '<input type="submit" name="resetdata"
1.334 albertel 664: value="'.&mt('New Problem Variation').'" />';
665: if (exists($env{'form.username'})) {
666: $form_tag_start.=
1.164 albertel 667: '<input type="hidden" name="username"
1.284 albertel 668: value="'.$env{'form.username'}.'" />';
1.334 albertel 669: }
1.333 albertel 670: if ($env{'request.role.adv'}) {
1.267 albertel 671: $form_tag_start.=
1.300 albertel 672: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 673: if (defined($env{'form.showallfoils'})) {
1.267 albertel 674: $form_tag_start.='checked="on"';
675: }
1.300 albertel 676: $form_tag_start.= ' />'.&mt(' Show All Foils').
677: '</label>';
1.267 albertel 678: }
679: $form_tag_start.='<hr />';
1.162 albertel 680: }
1.324 albertel 681:
682: ($status,$accessmsg,my $slot_name,my $slot) =
683: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 684: push (@Apache::inputtags::status,$status);
1.324 albertel 685:
1.159 albertel 686: my $expression='$external::datestatus="'.$status.'";';
687: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
688: &Apache::run::run($expression,$safeeval);
689: &Apache::lonxml::debug("Got $status");
1.324 albertel 690:
1.159 albertel 691: if (( $status eq 'CLOSED' ) ||
692: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 693: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 694: ( $status eq 'BANNED') ||
1.216 albertel 695: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 696: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 697: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 698: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
699: $style);
1.159 albertel 700: if ( $target eq "web" ) {
1.343 albertel 701: my $msg;
1.159 albertel 702: if ($status eq 'UNAVAILABLE') {
1.245 albertel 703: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 704: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 705: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 706: }
1.216 albertel 707: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 708: $msg.='The problem '.$accessmsg;
709: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 710: $msg.=&checkout_msg();
1.252 albertel 711: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 712: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 713: } elsif ($status eq 'NOT_IN_A_SLOT') {
714: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 715: }
716: $result.=$msg.'<br />';
717: } elsif ($target eq 'tex') {
1.332 albertel 718: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
719: : '\begin{minipage}{\textwidth}';
720: $result.='\begin{document}\noindent \vskip 1 mm '.
721: $startminipage.'\vskip 0 mm';
1.159 albertel 722: if ($status eq 'UNAVAILABLE') {
1.211 albertel 723: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 724: } else {
1.211 albertel 725: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 726: }
727: }
1.324 albertel 728: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 729: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
730: $style);
1.324 albertel 731: if ($target eq 'web') {
732: $result .= &Apache::bridgetask::proctor_validation_screen();
733: } elsif ($target eq 'grade') {
734: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
735: 'problem');
736: }
1.159 albertel 737: } elsif ($target eq 'web') {
1.360 albertel 738: if ($status eq 'CAN_ANSWER'
739: && $slot_name ne ''
740: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
741: # unproctored slot access, self checkin
742: &Apache::bridgetask::check_in('problem',undef,undef,
743: $slot_name);
744: }
1.368 albertel 745: $result.="\n $form_tag_start \t".
1.227 albertel 746: '<input type="hidden" name="submitted" value="yes" />';
747: # create a page header and exit
1.284 albertel 748: if ($env{'request.state'} eq "construct") {
749: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 750: }
751: # if we are viewing someone else preserve that info
1.284 albertel 752: if (defined $env{'form.grade_symb'}) {
1.227 albertel 753: foreach my $field ('symb','courseid','domain','username') {
754: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 755: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 756: }
757: }
758: } elsif ($target eq 'tex') {
1.319 foxr 759: $result .= 'INSERTTEXFRONTMATTERHERE';
760:
1.99 sakharuk 761: }
1.159 albertel 762: } elsif ($target eq 'edit') {
1.343 albertel 763: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 764: $Apache::lonxml::warnings_error_header=
765: &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 766: my $temp=&Apache::edit::insertlist($target,$token);
767: $result.=$temp;
768: } elsif ($target eq 'modified') {
769: $result=$token->[4];
770: $result.=&Apache::edit::handle_insert();
771: } else {
772: # page_start returned a starting result, delete it if we don't need it
773: $result = '';
1.99 sakharuk 774: }
1.159 albertel 775: return $result;
1.9 albertel 776: }
777:
778: sub end_problem {
1.159 albertel 779: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 780: my $result;
1.310 foxr 781:
1.321 albertel 782: if (!$Apache::lonxml::metamode) {
783: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 784: $Apache::lonxml::post_evaluate=0;
1.321 albertel 785: }
1.319 foxr 786:
787: if ($target eq 'tex') {
1.321 albertel 788: # Figure out the front matter and replace the
789: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
790: # this in end_problem because whether or not we display due
791: # dates depends on whether due dates have already been
792: # displayed in the problem parts.
793:
1.319 foxr 794: my $frontmatter = '';
795: my $startminipage = '';
796: if (not $env{'form.problem_split'}=~/yes/) {
797: $startminipage = '\begin{minipage}{\textwidth}';
798: }
799: my $id = $Apache::inputtags::part;
800: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
801: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
802: my @packages = split /,/,$packages;
803: my $allow_print_points = 0;
804: foreach my $partial_key (@packages) {
805: if ($partial_key=~m/^part_0$/) {
806: $allow_print_points=1;
807: }
808: }
809: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
810: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
811: if (lc($env{'course.'.$env{'request.course.id'}.
812: '.disableexampointprint'}) eq 'yes') {
813: $allow_print_points=0;
814: }
815: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
816: 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 ';
817: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
818: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
819:
820: # Figure out what the due date is and if we need to print
821: # it in the problem header. We have been logging the
822: # last due date written to file.
823:
824: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
825: my $duedate = POSIX::strftime("%c",localtime($duetime));
826: my $temp_file;
827: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
828:
829: # Figure out what the last printed due date is or set it
830: # to the epoch if no duedates have been printed.
831:
832: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
833: if (-e $filename) {
834: $temp_file = Apache::File->new($filename);
835: my @due_file = <$temp_file>;
836: $due_file_content = $due_file[$#due_file];
837: chomp $due_file_content;
838: }
839:
840: # We display the due date iff it is not the same as the last
841: # duedate in problem header ($due_file_content), and
842: # none of our parts displayed a duedate.
843: #
844: my $parts_with_displayduedate;
845: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
846: $parts_with_displayduedate =
847: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
848: } else {
849: $parts_with_displayduedate = 0;
850: }
851: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
852: $temp_file = Apache::File->new('>'.$filename);
853: print $temp_file "$duetime\n";
854: if (not $env{'request.symb'} =~ m/\.page_/) {
855: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
856: $frontmatter .= $begin_doc.
857: '\textit{Due date: '.$duedate.'} '.$toc_line;
858: } else {
859: $frontmatter.= $begin_doc.$toc_line;
860: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
861: }
862: } else {
863: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
864: }
865: } else {
866: if (not $env{'request.symb'} =~ m/\.page_/) {
867: $frontmatter .= $begin_doc.$toc_line;
868: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
869: } else {
870: $frontmatter .= '\vskip 1mm \\\\\\\\';
871: }
872: }
873: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
874: }
875:
1.159 albertel 876: my $status=$Apache::inputtags::status['-1'];
877: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
878: $target eq 'tex') {
1.249 albertel 879: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 880: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 881: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
882: &Apache::inputtags::grade;
1.324 albertel 883: } elsif ($status eq 'NEEDS_CHECKIN') {
884: # no need to grade, and don't want to hide data
1.249 albertel 885: } else {
886: # move any submission data to .hidden
887: &Apache::inputtags::hidealldata($Apache::inputtags::part);
888: }
1.159 albertel 889: } elsif ( ($target eq 'web' || $target eq 'tex') &&
890: $Apache::inputtags::part eq '0' &&
1.252 albertel 891: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 892: # if part is zero, no <part>s existed, so we need show the current
893: # grading status
894: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
895: $result.= $gradestatus;
896: }
897: if (
1.284 albertel 898: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 899: ($target eq 'answer') || ($target eq 'tex')
900: ) {
1.227 albertel 901: if ($target ne 'tex' &&
1.284 albertel 902: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 903: $result.="</form>";
1.348 albertel 904: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 905: }
906: if ($target eq 'web') {
1.346 albertel 907: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 908: } elsif ($target eq 'tex') {
1.178 sakharuk 909: my $endminipage = '';
1.284 albertel 910: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 911: $endminipage = '\end{minipage}';
912: }
1.284 albertel 913: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 914: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 915: } else {
1.262 sakharuk 916: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 917: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 918: $result .= $endminipage.'\end{document} ';
919: } else {
920: $result .= '';
921: }
1.159 albertel 922: }
923: }
924: }
925: if ($target eq 'grade') {
926: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
927: &finalize_storage();
928: }
1.284 albertel 929: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
930: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 931: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 932: # normally we get it from above, but in CSTR
1.172 albertel 933: # we always show answer mode too.
1.159 albertel 934: }
935: } elsif ($target eq 'meta') {
936: if ($Apache::inputtags::part eq '0') {
1.179 albertel 937: @Apache::inputtags::response=();
1.159 albertel 938: $result=&Apache::response::mandatory_part_meta;
939: }
1.215 albertel 940: $result.=&Apache::response::meta_part_order();
1.258 albertel 941: $result.=&Apache::response::meta_response_order();
1.159 albertel 942: } elsif ($target eq 'edit') {
943: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 944: $result .= &problem_edit_footer();
1.320 albertel 945: } elsif ($target eq 'modified') {
946: $result .= $token->[2];
947: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 948: }
1.155 albertel 949:
1.284 albertel 950: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 951: &Apache::inputtags::check_for_duplicate_ids();
952: }
1.204 albertel 953:
954: &reset_problem_globals('problem');
1.159 albertel 955:
956: return $result;
1.48 albertel 957: }
958:
1.108 albertel 959:
1.48 albertel 960: sub start_library {
1.159 albertel 961: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 962: my ($result,$form_tag_start);
1.371 albertel 963: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 964: &init_problem_globals('library');
965: $Apache::lonhomework::type='problem';
966: }
1.159 albertel 967: if ($target eq 'edit') {
1.343 albertel 968: ($result,$form_tag_start)=
969: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
970: 'Edit');
971: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 972: my $temp=&Apache::edit::insertlist($target,$token);
973: $result.=$temp;
974: } elsif ($target eq 'modified') {
975: $result=$token->[4];
976: $result.=&Apache::edit::handle_insert();
1.340 albertel 977: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 978: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 979: && $env{'request.state'} eq "construct" ) {
1.159 albertel 980: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 981: ($result,$form_tag_start)=
982: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
983: $name);
1.159 albertel 984: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 985: $result.=" \n $form_tag_start".
1.159 albertel 986: '<input type="hidden" name="submitted" value="yes" />';
987: $result.=&problem_web_to_edit_header($rndseed);
988: }
989: return $result;
1.48 albertel 990: }
991:
992: sub end_library {
1.159 albertel 993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
994: my $result='';
995: if ($target eq 'edit') {
996: $result=&problem_edit_footer();
1.371 albertel 997: } elsif ($target eq 'web'
998: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
999: && $env{'request.state'} eq "construct") {
1.349 albertel 1000: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1001: }
1.371 albertel 1002: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1003: &reset_problem_globals('library');
1004: }
1.159 albertel 1005: return $result;
1.197 www 1006: }
1007:
1008: sub start_definetag {
1.326 albertel 1009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1010:
1011: my $result;
1012:
1013: my $name = $token->[2]->{'name'};
1.326 albertel 1014: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1015: if ($name=~/^\//) {
1016: $result=
1017: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1018: } else {
1019: $result=
1020: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1021: }
1022: $skip=~s/\</\<\;/gs;
1023: $skip=~s/\>/\>\;/gs;
1024: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1025: return $result;
1026: }
1027:
1028: sub end_definetag {
1029: return '';
1.1 albertel 1030: }
1031:
1032: sub start_block {
1.201 albertel 1033: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1034:
1035: my $result;
1.1 albertel 1036:
1.339 albertel 1037: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1038: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1039: my $code = $token->[2]->{'condition'};
1.201 albertel 1040: if (defined($code)) {
1.137 albertel 1041: if (!$Apache::lonxml::default_homework_loaded) {
1042: &Apache::lonxml::default_homework_load($safeeval);
1043: }
1.131 albertel 1044: $result = &Apache::run::run($code,$safeeval);
1045: &Apache::lonxml::debug("block :$code: returned :$result:");
1046: } else {
1047: $result='1';
1048: }
1049: if ( ! $result ) {
1.201 albertel 1050: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1051: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1052: }
1053: $result='';
1054: } elsif ($target eq 'edit') {
1055: $result .=&Apache::edit::tag_start($target,$token);
1056: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1057: $token,40);
1058: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1059: } elsif ($target eq 'modified') {
1060: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1061: $safeeval,'condition');
1062: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1063: }
1.131 albertel 1064: return $result;
1.1 albertel 1065: }
1066:
1067: sub end_block {
1.167 www 1068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1069: my $result;
1070: if ($target eq "edit") {
1071: $result.= &Apache::edit::tag_end($target,$token,'');
1072: }
1073: return $result;
1074: }
1075:
1076: sub start_languageblock {
1.201 albertel 1077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1078:
1079: my $result;
1080:
1.339 albertel 1081: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1082: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1083: my $include = $token->[2]->{'include'};
1084: my $exclude = $token->[2]->{'exclude'};
1085: my %languages=&Apache::loncommon::display_languages();
1086: $result='1';
1087: if ($include) {
1088: $result='';
1089: foreach (split(/\,/,$include)) {
1090: if ($languages{$_}) { $result='1'; }
1091: }
1092: }
1093: if ($exclude) {
1094: foreach (split(/\,/,$exclude)) {
1095: if ($languages{$_}) { $result='0'; }
1096: }
1097: }
1098: if ( ! $result ) {
1099: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1100: $style);
1101: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1102: }
1103: $result='';
1.167 www 1104: } elsif ($target eq 'edit') {
1105: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1106: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1107: $token,40);
1.211 albertel 1108: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1109: $token,40);
1110: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1111: } elsif ($target eq 'modified') {
1112: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1113: $safeeval,'include',
1114: 'exclude');
1.167 www 1115: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1116: }
1117: return $result;
1118: }
1119:
1120: sub end_languageblock {
1.170 www 1121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1122: my $result;
1.201 albertel 1123: if ($target eq "edit") {
1.170 www 1124: $result.= &Apache::edit::tag_end($target,$token,'');
1125: }
1126: return $result;
1127: }
1128:
1129: sub start_instructorcomment {
1.201 albertel 1130: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1131:
1132: my $result;
1133:
1.339 albertel 1134: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1135: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1136: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1137: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1138: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1139: $parser,$style);
1.170 www 1140: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1141: }
1142: $result='';
1143: } elsif ($target eq 'edit') {
1144: $result .=&Apache::edit::tag_start($target,$token);
1145: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1146: }
1147: return $result;
1148: }
1149:
1150: sub end_instructorcomment {
1.159 albertel 1151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1152: my $result;
1153: if ($target eq "edit") {
1154: $result.= &Apache::edit::tag_end($target,$token,'');
1155: }
1156: return $result;
1.4 tsai 1157: }
1158:
1159: sub start_while {
1.326 albertel 1160: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1161:
1.160 albertel 1162: my $result;
1.339 albertel 1163: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1164: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1165: my $code = $token->[2]->{'condition'};
1.4 tsai 1166:
1.160 albertel 1167: push( @Apache::structuretags::whileconds, $code);
1168: if (!$Apache::lonxml::default_homework_loaded) {
1169: &Apache::lonxml::default_homework_load($safeeval);
1170: }
1171: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1172: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1173: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1174: push( @Apache::structuretags::whileline, $token->[5]);
1175: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1176: if ( $result ) {
1177: &Apache::lonxml::newparser($parser,\$bodytext);
1178: }
1179: } elsif ($target eq 'edit') {
1180: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1181: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1182: $token,40);
1183: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1184: } elsif ($target eq 'modified') {
1185: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1186: $safeeval,'condition');
1187: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1188: }
1.160 albertel 1189: return $result;
1.4 tsai 1190: }
1191:
1192: sub end_while {
1.159 albertel 1193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1194: my $result;
1195:
1.339 albertel 1196: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1197: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1198: my $code = pop(@Apache::structuretags::whileconds);
1199: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1200: my $line = pop(@Apache::structuretags::whileline);
1201: my $return = &Apache::run::run($code,$safeeval);
1202: my $starttime=time;
1203: my $error=0;
1204: while ($return) {
1205: if (time-$starttime >
1206: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1207: #$return = 0; $error=1; next;
1.161 albertel 1208: }
1209: $result.=&Apache::scripttag::xmlparse($bodytext);
1210: $return = &Apache::run::run($code,$safeeval);
1211: }
1212: if ($error) {
1.270 albertel 1213: &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 1214: }
1215: } elsif ($target eq "edit") {
1216: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1217: }
1.160 albertel 1218: return $result;
1.1 albertel 1219: }
1.6 tsai 1220:
1.160 albertel 1221: # <randomlist show="1">
1.6 tsai 1222: # <tag1>..</tag1>
1223: # <tag2>..</tag2>
1224: # <tag3>..</tag3>
1.160 albertel 1225: # ...
1.6 tsai 1226: # </randomlist>
1227: sub start_randomlist {
1.326 albertel 1228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1229: my $result;
1.339 albertel 1230: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1231: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1232: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1233: my $b_parser= HTML::LCParser->new(\$body);
1234: $b_parser->xml_mode(1);
1235: $b_parser->marked_sections(1);
1.159 albertel 1236: my $b_tok;
1237: my @randomlist;
1238: my $list_item;
1239: while($b_tok = $b_parser->get_token() ) {
1240: if($b_tok->[0] eq 'S') { # start tag
1241: # get content of the tag until matching end tag
1242: # get all text upto the matching tag
1243: # and push the content into @randomlist
1244: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1245: $b_parser);
1246: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1247: push(@randomlist,$list_item);
1248: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1249: # $list_item</b>";
1250: }
1251: if($b_tok->[0] eq 'T') { # text
1252: # what to do with text in between tags?
1253: # print "<b>TEXT $b_tok->[1]</b><br />";
1254: }
1255: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1256: # print "<b>END-TAG $b_tok->[1]</b><br />";
1257: # }
1258: }
1.303 albertel 1259: if (@randomlist) {
1260: my @idx_arr = (0 .. $#randomlist);
1261: &Apache::structuretags::shuffle(\@idx_arr);
1262: my $bodytext = '';
1263: my $show=$#randomlist;
1264: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1265: $showarg--;
1266: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1267: for(0 .. $show) {
1268: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1269: }
1270: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1271: }
1272: } elsif ($target eq 'edit' ) {
1273: $result .=&Apache::edit::tag_start($target,$token);
1274: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1275: $token,5);
1276: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1277: } elsif ($target eq 'modified' ) {
1278: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1279: $safeeval,'show');
1280: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1281: }
1282: return $result;
1.7 tsai 1283: }
1284:
1285: sub shuffle {
1286: my $a=shift;
1287: my $i;
1.303 albertel 1288: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1289: &Apache::response::pushrandomnumber();
1.159 albertel 1290: for($i=@$a;--$i;) {
1291: my $j=int(&Math::Random::random_uniform() * ($i+1));
1292: next if $i == $j;
1293: @$a[$i,$j] = @$a[$j,$i];
1294: }
1.251 albertel 1295: &Apache::response::poprandomnumber();
1.7 tsai 1296: }
1.6 tsai 1297: }
1298:
1299: sub end_randomlist {
1.159 albertel 1300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1301: my $result;
1302: if ($target eq 'edit' ) {
1303: $result=&Apache::edit::tag_end($target,$token,
1304: 'End Randomly Parsed Block');
1305: }
1306: return $result;
1.6 tsai 1307: }
1308:
1.283 albertel 1309: sub ordered_show_check {
1310: my $last_part=$Apache::inputtags::partlist[-2];
1311: my $in_order=
1312: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1313: my $in_order_show=1;
1314: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1315: $in_order_show=&Apache::response::check_status($last_part);
1316: }
1317: return $in_order_show;
1318: }
1319:
1.11 albertel 1320: sub start_part {
1.326 albertel 1321: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1322: if (!$Apache::lonxml::metamode) {
1323: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1324: # duedates.
1325: }
1.159 albertel 1326: my $result='';
1327: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1328: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1329: $Apache::inputtags::part=$id;
1.177 albertel 1330: push(@Apache::inputtags::partlist,$id);
1331: @Apache::inputtags::response=();
1.159 albertel 1332: @Apache::inputtags::previous=();
1333: @Apache::inputtags::previous_version=();
1.241 albertel 1334: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1335: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1336: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1337: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1338: my $in_order_show=&ordered_show_check();
1.214 albertel 1339: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1340: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1341: &Apache::run::run($expression,$safeeval);
1.159 albertel 1342:
1343: if ($target eq 'meta') {
1.224 www 1344: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1345: return &Apache::response::mandatory_part_meta.
1346: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1347: } elsif ($target eq 'web' || $target eq 'grade' ||
1348: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1349: if ($hidden || !$in_order_show) {
1.326 albertel 1350: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1351: } else {
1352: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1353: push (@Apache::inputtags::status,$status);
1354: my $expression='$external::datestatus="'.$status.'";';
1355: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1356: &Apache::run::run($expression,$safeeval);
1.284 albertel 1357: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1358: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1359: }
1.216 albertel 1360: if (( $status eq 'CLOSED' ) ||
1361: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1362: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1363: ( $status eq 'BANNED') ||
1364: ( $status eq 'UNAVAILABLE') ||
1365: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1366: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1367: $style);
1.159 albertel 1368: if ( $target eq "web" ) {
1.211 albertel 1369: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1370: } elsif ( $target eq 'tex' ) {
1.284 albertel 1371: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1372: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1373: } else {
1.211 albertel 1374: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1375: }
1.159 albertel 1376: }
1377: } else {
1378: if ($target eq 'tex') {
1.284 albertel 1379: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1380: if ($$tagstack[-2] eq 'td') {
1381: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1382: } else {
1383: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1384: }
1.195 sakharuk 1385: }
1.159 albertel 1386: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1387: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1388: my @allkeys = split /,/,$allkeys;
1389: my $allow_print_points = 0;
1390: foreach my $partial_key (@allkeys) {
1.230 albertel 1391: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1392: if ($1 ne '0') {$allow_print_points=1;}
1393: }
1394: }
1.275 albertel 1395: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1396: if (defined($maxtries) && $maxtries < 0) {
1397: $allow_print_points=0;
1398: }
1.302 albertel 1399: if (lc($env{'course.'.$env{'request.course.id'}.
1400: '.disableexampointprint'}) eq 'yes') {
1401: $allow_print_points=0;
1402: }
1.222 sakharuk 1403: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1404: } elsif ($target eq 'web') {
1.356 www 1405: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1406: }
1407: }
1408: }
1409: } elsif ($target eq 'edit') {
1410: $result.=&Apache::edit::tag_start($target,$token);
1411: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1412: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1413: ' '.
1414: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1415: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1416: } elsif ($target eq 'modified') {
1417: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1418: $safeeval,'id','display');
1.159 albertel 1419: if ($constructtag) {
1.225 albertel 1420: #limiting ids to only letters numbers, and space
1.224 www 1421: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1422: $result = &Apache::edit::rebuild_tag($token);
1423: $result.=&Apache::edit::handle_insert();
1424: }
1425: }
1426: return $result;
1.11 albertel 1427: }
1428:
1429: sub end_part {
1.159 albertel 1430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1431: &Apache::lonxml::debug("in end_part $target ");
1432: my $status=$Apache::inputtags::status['-1'];
1433: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1434: my $in_order_show=&ordered_show_check();
1.321 albertel 1435: my $result;
1436: if (!$Apache::lonxml::metamode) {
1437: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1438: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1439: }
1.312 albertel 1440: if ($target eq 'grade') {
1.249 albertel 1441: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1442: !$hidden && $in_order_show) {
1.311 foxr 1443: $result.=&Apache::inputtags::grade;
1.249 albertel 1444: } else {
1445: # move any submission data to .hidden
1446: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1447: }
1.283 albertel 1448: } elsif (($target eq 'web' || $target eq 'tex') &&
1449: !$hidden && $in_order_show) {
1.159 albertel 1450: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1451: $target);
1.212 albertel 1452: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1453: $gradestatus='';
1454: }
1.311 foxr 1455: $result.=$gradestatus;
1.265 sakharuk 1456: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1457: } elsif ($target eq 'edit') {
1.311 foxr 1458: $result.=&Apache::edit::end_table();
1.322 albertel 1459: } elsif ($target eq 'modified') {
1460: $result .= $token->[2];
1461: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1462: }
1463: pop @Apache::inputtags::status;
1464: $Apache::inputtags::part='';
1.295 albertel 1465: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1466: return $result;
1.11 albertel 1467: }
1.1 albertel 1468:
1.25 albertel 1469: sub start_preduedate {
1.326 albertel 1470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1471: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1472: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1473: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1474: if (!$Apache::lonhomework::scantronmode &&
1475: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1476: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1477: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1478: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1479: }
1.24 albertel 1480: }
1.159 albertel 1481: return '';
1.24 albertel 1482: }
1483:
1.25 albertel 1484: sub end_preduedate {
1.159 albertel 1485: return '';
1.24 albertel 1486: }
1487:
1.369 foxr 1488: # In all the modes where <postanswerdate> text is
1489: # displayable, all we do is eat up the text between the start/stop
1490: # tags if the conditions are not right to display it.
1.25 albertel 1491: sub start_postanswerdate {
1.326 albertel 1492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1493: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1494: &Apache::lonnet::allowed('pav',
1495: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1496: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1497: $target eq 'tex' ) {
1.300 albertel 1498: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1499: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1500: (($target eq 'tex') && !$pav)) {
1.326 albertel 1501: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1502: }
1503: }
1504: return '';
1.24 albertel 1505: }
1506:
1.25 albertel 1507: sub end_postanswerdate {
1.159 albertel 1508: return '';
1.24 albertel 1509: }
1510:
1.25 albertel 1511: sub start_notsolved {
1.326 albertel 1512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1513: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1514: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1515: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1516: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1517: if ($gradestatus =~ /^correct/ &&
1518: &Apache::response::show_answer()) {
1.159 albertel 1519: &Apache::lonxml::debug("skipping");
1.326 albertel 1520: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1521: }
1.24 albertel 1522: }
1.159 albertel 1523: return '';
1.24 albertel 1524: }
1525:
1.25 albertel 1526: sub end_notsolved {
1.159 albertel 1527: return '';
1.24 albertel 1528: }
1529:
1530: sub start_solved {
1.326 albertel 1531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1532: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1533: $target eq 'tex') {
1534: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1535: if ($gradestatus !~ /^correct/ ||
1536: !&Apache::response::show_answer()) {
1.326 albertel 1537: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1538: }
1.24 albertel 1539: }
1.159 albertel 1540: return '';
1.24 albertel 1541: }
1542:
1543: sub end_solved {
1.248 albertel 1544: return '';
1545: }
1546:
1547: sub start_problemtype {
1.326 albertel 1548: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1549: my $result;
1.339 albertel 1550: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1551: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1552: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1553: if (!defined($mode)) { $mode='show'; }
1554: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1555: my $found=0;
1556: foreach my $type (split(',',$for)) {
1557: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1558: }
1559: if ($mode eq 'show' && !$found) {
1.326 albertel 1560: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1561: }
1562: if ($mode eq 'hide' && $found) {
1.326 albertel 1563: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1564: }
1565: } elsif ($target eq 'edit') {
1566: $result .=&Apache::edit::tag_start($target,$token);
1567: $result.=&Apache::edit::select_arg('Mode:','mode',
1568: [['show','Show'],
1569: ['hide','Hide']]
1570: ,$token);
1571: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1572: [ ['exam','Exam/Quiz Problem'],
1573: ['survey','Survey'],
1574: ['problem','Homework Problem'] ]
1575: ,$token);
1576: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1577: } elsif ($target eq 'modified') {
1578: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1579: $safeeval,'mode','for');
1580: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1581: }
1582: return $result;
1583: }
1584:
1585: sub end_problemtype {
1.159 albertel 1586: return '';
1.24 albertel 1587: }
1.34 albertel 1588:
1589: sub start_startouttext {
1.159 albertel 1590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1591: my @result=(''.'');
1592: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1593: return (@result);
1.34 albertel 1594: }
1.159 albertel 1595:
1.34 albertel 1596: sub end_startouttext {
1.326 albertel 1597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1598: my $result='';
1599: my $text='';
1600:
1601: if ($target eq 'edit') {
1.326 albertel 1602: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1603: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1604: <td>".&mt('Delete:').
1.159 albertel 1605: &Apache::edit::deletelist($target,$token)
1606: ."</td>
1.42 albertel 1607: <td>".
1.159 albertel 1608: &Apache::edit::insertlist($target,$token).
1.362 albertel 1609: '</td><td align="right" valign="top">' .
1610: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1611: &Apache::edit::end_row().
1.362 albertel 1612: &Apache::edit::start_spanning_row()."\n".
1.255 www 1613: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1614: }
1615: if ($target eq 'modified') {
1.219 albertel 1616: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1617: }
1618: if ($target eq 'tex') {
1619: $result .= '\noindent ';
1620: }
1621: return $result;
1.34 albertel 1622: }
1.159 albertel 1623:
1.34 albertel 1624: sub start_endouttext {
1.159 albertel 1625: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1626: my $result='';
1627: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1628: if ($target eq "modified") {
1629: $result='<endouttext />'.
1630: &Apache::edit::handle_insertafter('startouttext'); }
1631: return $result;
1.34 albertel 1632: }
1.159 albertel 1633:
1.34 albertel 1634: sub end_endouttext {
1.159 albertel 1635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1636: my @result=('','');
1637: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1638: return (@result);
1.34 albertel 1639: }
1.159 albertel 1640:
1.45 albertel 1641: sub delete_startouttext {
1.326 albertel 1642: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1643: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1644: my $text=$$parser['-1']->get_text("/endouttext");
1645: my $ntoken=$$parser['-1']->get_token();
1646: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1647: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1648: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1649: # they did the last time round
1650: &Apache::lonxml::increasedepth($ntoken);
1651: &Apache::lonxml::decreasedepth($ntoken);
1652: return 1;
1.193 www 1653: }
1654:
1655: sub start_simpleeditbutton {
1656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1657: my $result='';
1.284 albertel 1658: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1659: ($target eq 'web') &&
1.330 albertel 1660: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1661: my $url=$env{'request.noversionuri'};
1.193 www 1662: $url=~s/\?.*$//;
1.367 albertel 1663: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1664: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1665: '<a href="'.$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 1666: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1667: }
1668: return $result;
1669: }
1670:
1671: sub end_simpleeditbutton {
1672: return '';
1.45 albertel 1673: }
1.34 albertel 1674:
1.1 albertel 1675: 1;
1676: __END__
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