Annotation of loncom/homework/structuretags.pm, revision 1.356
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.356 ! www 4: # $Id: structuretags.pm,v 1.355 2006/05/23 19:05:42 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: }
137:
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' || $target eq 'webgrade')) {
144:
145: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
146: if ($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: }
165: $form_tag_start.='>';
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: $form_tag_start.=
172: '<input type="hidden" name="symb" value="'.$symb.'" />';
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 $Apache::lonhomework::name;
183: }
1.279 albertel 184: my ($symb)=&Apache::lonxml::whichuser();
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 $rndseed;
1.162 albertel 201: my ($symb)=&Apache::lonxml::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>'.
1.260 albertel 254: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
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 $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
279: if (!$Apache::lonhomework::parsing_a_task) {
280: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
281: }
282: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 283: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
284: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 285: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 286: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 287: $rndseed.'"
1.270 albertel 288: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 289: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 290: my $show_all_foils_text =
291: ($Apache::lonhomework::parsing_a_task) ?
292: &mt(' Show All Instances')
293: : &mt(' Show All Foils');
294:
1.284 albertel 295: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 296: $result.= ' />'.$show_all_foils_text.
1.228 www 297: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 298: '</label><hr />';
1.313 albertel 299: if (!$Apache::lonhomework::parsing_a_task) {
300: $result.="
1.235 albertel 301: <nobr>
302: Problem Status:
303: <select name='problemstate'>
1.270 albertel 304: <option value=''></option>
1.235 albertel 305: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
306: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
307: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
308: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
309: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
310: </select>
311: </nobr>
312: <nobr>
313: Problem Type:
314: <select name='problemtype'>
1.270 albertel 315: <option value=''></option>
1.242 albertel 316: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
317: ".&option('problem','problemtype').&mt("Homework problem")."</option>
318: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 319: </select>
320: </nobr>
321: <nobr>
322: Feedback Mode:
323: <select name='problemstatus'>
324: <option value=''></option>
1.242 albertel 325: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
326: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 327: </select>
328: </nobr>
1.242 albertel 329: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 330: <hr />";
1.313 albertel 331: my $numtoanalyze=$env{'form.numtoanalyze'};
332: if (!$numtoanalyze) { $numtoanalyze=20; }
333: $result.= '<input type="submit" name="problemmode" value='.
334: &mt('"Calculate answers').'" /> for
1.136 albertel 335: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 336: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
337: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 338: '',undef,undef,300).
1.210 albertel 339: '<hr />';
1.313 albertel 340: }
1.159 albertel 341: return $result;
1.48 albertel 342: }
343:
1.65 albertel 344: sub initialize_storage {
1.353 albertel 345: undef(%Apache::lonhomework::results);
346: undef(%Apache::lonhomework::history);
1.159 albertel 347: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.353 albertel 348:
349: # anonymous users (CODEd exams) have no data
350: if ($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 {
1.159 albertel 387: my $result;
1.289 albertel 388: if (%Apache::lonhomework::results) {
1.323 albertel 389: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
390: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 391: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 392: if ($env{'request.state'} eq 'construct'
393: || $symb eq ''
394: || $Apache::lonhomework::type eq 'practice') {
395: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 396: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 397: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 398: $namespace,'',$domain,$name);
1.159 albertel 399: &Apache::lonxml::debug('Construct Store return message:'.$result);
400: } else {
401: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
402: $symb,$courseid,$domain,$name);
403: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 404: if ($env{'request.role'} =~/^st/) {
405: &store_aggregates($symb,$courseid);
406: }
1.159 albertel 407: }
1.323 albertel 408: } else {
409: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 410: }
1.159 albertel 411: return $result;
1.65 albertel 412: }
1.289 albertel 413: use Data::Dumper;
1.65 albertel 414:
1.285 raeburn 415: # -------------------------------------------------------------store_aggregates
416: # Sends hash of values to be incremented in nohist_resourcetracker.db
417: # for the course. Increments total number of attempts, unique students
418: # and corrects for each part for an instance of a problem, as appropriate.
419: sub store_aggregates {
420: my ($symb,$courseid) = @_;
1.286 albertel 421: my %aggregate;
422: my @parts;
1.288 albertel 423: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
424: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 425: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 426: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 427: push(@parts, $1);
1.285 raeburn 428: }
429: }
1.286 albertel 430: foreach my $part (@parts) {
431: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
432: eq 'APPROX_ANS' ||
433: $Apache::lonhomework::results{'resource.'.$part.'.award'}
434: eq 'EXACT_ANS') {
1.287 albertel 435: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 436: }
1.286 albertel 437: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 438: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 439: } else {
1.293 albertel 440: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 441: if ($last_reset) {
1.293 albertel 442: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 443: $aggregate{$symb."\0".$part."\0users"} = 1;
444: }
445: }
1.285 raeburn 446: }
1.287 albertel 447: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 448: }
1.292 raeburn 449: if (keys (%aggregate) > 0) {
1.289 albertel 450: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 451: $cdomain,$cname);
452: }
453: }
1.289 albertel 454:
1.65 albertel 455: sub checkout_msg {
1.211 albertel 456: my %lt=&Apache::lonlocal::texthash(
457: 'resource'=>'The resource needs to be checked out',
458: '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.',
459: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
460: 'checkout'=>'Check out Exam for Viewing',
461: 'checkout?'=>'Check out Exam?');
1.352 albertel 462: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 463: return (<<ENDCHECKOUT);
1.211 albertel 464: <h2>$lt{'resource'}</h2>
465: <p>$lt{'id_expln'}</p>
466: <font color="red">
467: <p>$lt{'warning'}</p>
1.91 albertel 468: </font>
1.352 albertel 469: <form name="checkout" method="POST" action="$uri">
1.91 albertel 470: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 471: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 472: </form>
473: ENDCHECKOUT
474: }
475:
1.252 albertel 476: sub firstaccess_msg {
1.253 albertel 477: my ($time,$symb)=@_;
478: my ($map)=&Apache::lonnet::decode_symb($symb);
479: my $foldertitle=&Apache::lonnet::gettitle($map);
480: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 481: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 482: return (<<ENDCHECKOUT);
1.253 albertel 483: <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 484: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 485: <input type="hidden" name="markaccess" value="yes" />
486: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
487: </form>
488: ENDCHECKOUT
489: }
490:
1.204 albertel 491: sub init_problem_globals {
492: my ($type)=@_;
493: #initialize globals
1.308 foxr 494: # For problems, we start out in part 0 (outside a <part> tag).
495: # and part 0 is used to describe the main body of the <problem>
496: #
1.204 albertel 497: if ($type eq 'problem') {
498: $Apache::inputtags::part='0';
499: @Apache::inputtags::partlist=('0');
1.266 albertel 500: $Apache::lonhomework::problemstatus=&get_problem_status('0');
501: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 502:
1.266 albertel 503: } elsif ($type eq 'library') {
1.204 albertel 504: $Apache::inputtags::part='';
505: @Apache::inputtags::partlist=();
506: $Apache::lonhomework::problemstatus='';
1.266 albertel 507: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 508:
1.304 albertel 509: } elsif ($type eq 'Task') {
510: $Apache::inputtags::part='0';
511: @Apache::inputtags::partlist=('0');
512: $Apache::lonhomework::problemstatus='';
513: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 514: }
515: @Apache::inputtags::responselist = ();
516: @Apache::inputtags::importlist = ();
517: @Apache::inputtags::previous=();
518: @Apache::inputtags::previous_version=();
519: $Apache::structuretags::printanswer='No';
520: @Apache::structuretags::whileconds=();
521: @Apache::structuretags::whilebody=();
522: @Apache::structuretags::whileline=();
523: $Apache::lonhomework::scantronmode=0;
524: undef($Apache::lonhomework::name);
525:
526: }
527:
528: sub reset_problem_globals {
529: my ($type)=@_;
530: undef(%Apache::lonhomework::history);
531: undef(%Apache::lonhomework::results);
532: undef($Apache::inputtags::part);
1.208 albertel 533: #don't undef this, lonhomework.pm takes care of this, we use this to
534: #detect if we try to do 2 problems in one file
535: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 536: undef($Apache::lonhomework::name);
537: }
538:
1.241 albertel 539: sub set_problem_state {
1.240 albertel 540: my ($part)=@_;
1.284 albertel 541: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 542: $Apache::lonhomework::history{"resource.$part.solved"}=
543: 'correct_by_student';
544: }
545: }
546:
1.241 albertel 547: sub get_problem_status {
548: my ($part)=@_;
1.267 albertel 549: my $problem_status;
1.284 albertel 550: if ($env{'request.state'} eq 'construct' &&
551: defined($env{'form.problemstatus'})) {
552: $problem_status=$env{'form.problemstatus'};
1.267 albertel 553: } else {
554: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
555: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 556: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 557: }
558: return $problem_status;
559: }
560:
1.9 albertel 561: sub start_problem {
1.326 albertel 562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 563:
1.311 foxr 564: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 565: if (!$Apache::lonxml::metamode) {
566: &Apache::lonxml::startredirection();
567: }
1.311 foxr 568:
1.308 foxr 569: # Problems don't nest and we don't allow more than one <problem> in
570: # a .problem file.
571: #
1.184 albertel 572: if ( $Apache::inputtags::part ne '' ||
573: $Apache::lonhomework::parsing_a_problem) {
574: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 575: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 576: return '';
577: }
1.184 albertel 578:
579: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 580: &init_problem_globals('problem');
1.166 albertel 581:
1.284 albertel 582: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 583: $Apache::lonhomework::scantronmode=1;
584: }
1.161 albertel 585:
1.246 albertel 586: &initialize_storage();
1.159 albertel 587: if ($target ne 'analyze') {
588: if ($target eq 'web') {
589: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 590: }
1.284 albertel 591: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 592: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 593: if (($env{'request.state'} eq 'construct') &&
594: defined($env{'form.problemtype'})) {
595: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 596: }
1.332 albertel 597: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 598: }
1.164 albertel 599: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 600: my $uri=$env{'request.uri'};
1.159 albertel 601: if ($uri=~/\.(\w+)$/) {
602: $Apache::lonhomework::type=$1;
603: &Apache::lonxml::debug("Using type of $1");
604: } else {
605: $Apache::lonhomework::type='problem';
606: &Apache::lonxml::debug("Using default type, problem, :$uri:");
607: }
1.87 albertel 608: }
1.301 albertel 609: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 610:
1.159 albertel 611: #added vars to the scripting enviroment
1.213 albertel 612: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 613: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 614: &Apache::run::run($expression,$safeeval);
1.159 albertel 615: my $status;
616: my $accessmsg;
617:
1.343 albertel 618: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 619: my ($result,$form_tag_start);
1.354 albertel 620: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
621: || $target eq 'edit') {
1.350 albertel 622: ($result,$form_tag_start) =
623: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
624: $name);
625: }
626:
1.284 albertel 627: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 628:
629: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
630: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
631: $target eq 'tex') {
632: #handle exam checkout
633: if ($Apache::lonhomework::type eq 'exam') {
634: my $token=
635: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 636: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 637: $token=&Apache::lonxml::maketoken();
638: $Apache::lonhomework::history{"resource.0.outtoken"}=
639: $token;
640: }
1.343 albertel 641: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 642: }
1.284 albertel 643: if ($env{'form.markaccess'}) {
1.252 albertel 644: &Apache::lonnet::set_first_access('map');
645: }
1.159 albertel 646: #handle rand seed in construction space
647: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 648: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 649: if ($env{'request.state'} ne "construct" &&
650: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 651: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
652: $rndseed.'" />'.
653: '<input type="submit" name="resetdata"
1.334 albertel 654: value="'.&mt('New Problem Variation').'" />';
655: if (exists($env{'form.username'})) {
656: $form_tag_start.=
1.164 albertel 657: '<input type="hidden" name="username"
1.284 albertel 658: value="'.$env{'form.username'}.'" />';
1.334 albertel 659: }
1.333 albertel 660: if ($env{'request.role.adv'}) {
1.267 albertel 661: $form_tag_start.=
1.300 albertel 662: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 663: if (defined($env{'form.showallfoils'})) {
1.267 albertel 664: $form_tag_start.='checked="on"';
665: }
1.300 albertel 666: $form_tag_start.= ' />'.&mt(' Show All Foils').
667: '</label>';
1.267 albertel 668: }
669: $form_tag_start.='<hr />';
1.162 albertel 670: }
1.324 albertel 671:
672: ($status,$accessmsg,my $slot_name,my $slot) =
673: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 674: push (@Apache::inputtags::status,$status);
1.324 albertel 675:
1.159 albertel 676: my $expression='$external::datestatus="'.$status.'";';
677: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
678: &Apache::run::run($expression,$safeeval);
679: &Apache::lonxml::debug("Got $status");
1.324 albertel 680:
1.159 albertel 681: if (( $status eq 'CLOSED' ) ||
682: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 683: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 684: ( $status eq 'BANNED') ||
1.216 albertel 685: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 686: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 687: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 688: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
689: $style);
1.159 albertel 690: if ( $target eq "web" ) {
1.343 albertel 691: my $msg;
1.159 albertel 692: if ($status eq 'UNAVAILABLE') {
1.245 albertel 693: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 694: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 695: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 696: }
1.216 albertel 697: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 698: $msg.='The problem '.$accessmsg;
699: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 700: $msg.=&checkout_msg();
1.252 albertel 701: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 702: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 703: } elsif ($status eq 'NOT_IN_A_SLOT') {
704: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 705: }
706: $result.=$msg.'<br />';
707: } elsif ($target eq 'tex') {
1.332 albertel 708: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
709: : '\begin{minipage}{\textwidth}';
710: $result.='\begin{document}\noindent \vskip 1 mm '.
711: $startminipage.'\vskip 0 mm';
1.159 albertel 712: if ($status eq 'UNAVAILABLE') {
1.211 albertel 713: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 714: } else {
1.211 albertel 715: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 716: }
717: }
1.324 albertel 718: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 719: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
720: $style);
1.324 albertel 721: if ($target eq 'web') {
722: $result .= &Apache::bridgetask::proctor_validation_screen();
723: } elsif ($target eq 'grade') {
724: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
725: 'problem');
726: }
1.159 albertel 727: } elsif ($target eq 'web') {
1.343 albertel 728: $result.="\n $form_tag_start".
1.227 albertel 729: '<input type="hidden" name="submitted" value="yes" />';
730: # create a page header and exit
1.284 albertel 731: if ($env{'request.state'} eq "construct") {
732: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 733: }
734: # if we are viewing someone else preserve that info
1.284 albertel 735: if (defined $env{'form.grade_symb'}) {
1.227 albertel 736: foreach my $field ('symb','courseid','domain','username') {
737: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 738: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 739: }
740: }
741: } elsif ($target eq 'tex') {
1.319 foxr 742: $result .= 'INSERTTEXFRONTMATTERHERE';
743:
1.99 sakharuk 744: }
1.159 albertel 745: } elsif ($target eq 'edit') {
1.343 albertel 746: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 747: $Apache::lonxml::warnings_error_header=
748: &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 749: my $temp=&Apache::edit::insertlist($target,$token);
750: $result.=$temp;
751: } elsif ($target eq 'modified') {
752: $result=$token->[4];
753: $result.=&Apache::edit::handle_insert();
754: } else {
755: # page_start returned a starting result, delete it if we don't need it
756: $result = '';
1.99 sakharuk 757: }
1.159 albertel 758: return $result;
1.9 albertel 759: }
760:
761: sub end_problem {
1.159 albertel 762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 763: my $result;
1.310 foxr 764:
1.321 albertel 765: if (!$Apache::lonxml::metamode) {
766: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 767: $Apache::lonxml::post_evaluate=0;
1.321 albertel 768: }
1.319 foxr 769:
770: if ($target eq 'tex') {
1.321 albertel 771:
772: # Figure out the front matter and replace the
773: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
774: # this in end_problem because whether or not we display due
775: # dates depends on whether due dates have already been
776: # displayed in the problem parts.
777:
1.319 foxr 778: my $frontmatter = '';
779: my $startminipage = '';
780: if (not $env{'form.problem_split'}=~/yes/) {
781: $startminipage = '\begin{minipage}{\textwidth}';
782: }
783: my $id = $Apache::inputtags::part;
784: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
785: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
786: my @packages = split /,/,$packages;
787: my $allow_print_points = 0;
788: foreach my $partial_key (@packages) {
789: if ($partial_key=~m/^part_0$/) {
790: $allow_print_points=1;
791: }
792: }
793: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
794: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
795: if (lc($env{'course.'.$env{'request.course.id'}.
796: '.disableexampointprint'}) eq 'yes') {
797: $allow_print_points=0;
798: }
799: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
800: 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 ';
801: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
802: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
803:
804: # Figure out what the due date is and if we need to print
805: # it in the problem header. We have been logging the
806: # last due date written to file.
807:
808: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
809: my $duedate = POSIX::strftime("%c",localtime($duetime));
810: my $temp_file;
811: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
812:
813: # Figure out what the last printed due date is or set it
814: # to the epoch if no duedates have been printed.
815:
816: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
817: if (-e $filename) {
818: $temp_file = Apache::File->new($filename);
819: my @due_file = <$temp_file>;
820: $due_file_content = $due_file[$#due_file];
821: chomp $due_file_content;
822: }
823:
824: # We display the due date iff it is not the same as the last
825: # duedate in problem header ($due_file_content), and
826: # none of our parts displayed a duedate.
827: #
828: my $parts_with_displayduedate;
829: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
830: $parts_with_displayduedate =
831: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
832: } else {
833: $parts_with_displayduedate = 0;
834: }
835: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
836: $temp_file = Apache::File->new('>'.$filename);
837: print $temp_file "$duetime\n";
838: if (not $env{'request.symb'} =~ m/\.page_/) {
839: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
840: $frontmatter .= $begin_doc.
841: '\textit{Due date: '.$duedate.'} '.$toc_line;
842: } else {
843: $frontmatter.= $begin_doc.$toc_line;
844: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
845: }
846: } else {
847: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
848: }
849: } else {
850: if (not $env{'request.symb'} =~ m/\.page_/) {
851: $frontmatter .= $begin_doc.$toc_line;
852: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
853: } else {
854: $frontmatter .= '\vskip 1mm \\\\\\\\';
855: }
856: }
857: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
858: }
859:
1.159 albertel 860: my $status=$Apache::inputtags::status['-1'];
861: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
862: $target eq 'tex') {
1.249 albertel 863: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 864: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 865: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
866: &Apache::inputtags::grade;
1.324 albertel 867: } elsif ($status eq 'NEEDS_CHECKIN') {
868: # no need to grade, and don't want to hide data
1.249 albertel 869: } else {
870: # move any submission data to .hidden
871: &Apache::inputtags::hidealldata($Apache::inputtags::part);
872: }
1.159 albertel 873: } elsif ( ($target eq 'web' || $target eq 'tex') &&
874: $Apache::inputtags::part eq '0' &&
1.252 albertel 875: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 876: # if part is zero, no <part>s existed, so we need show the current
877: # grading status
878: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
879: $result.= $gradestatus;
880: }
881: if (
1.284 albertel 882: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 883: ($target eq 'answer') || ($target eq 'tex')
884: ) {
1.227 albertel 885: if ($target ne 'tex' &&
1.284 albertel 886: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 887: $result.="</form>";
1.348 albertel 888: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 889: }
890: if ($target eq 'web') {
1.346 albertel 891: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 892: } elsif ($target eq 'tex') {
1.178 sakharuk 893: my $endminipage = '';
1.284 albertel 894: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 895: $endminipage = '\end{minipage}';
896: }
1.284 albertel 897: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 898: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 899: } else {
1.262 sakharuk 900: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 901: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 902: $result .= $endminipage.'\end{document} ';
903: } else {
904: $result .= '';
905: }
1.159 albertel 906: }
907: }
908: }
909: if ($target eq 'grade') {
910: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
911: &finalize_storage();
912: }
1.284 albertel 913: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
914: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 915: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 916: # normally we get it from above, but in CSTR
1.172 albertel 917: # we always show answer mode too.
1.159 albertel 918: }
919: } elsif ($target eq 'meta') {
920: if ($Apache::inputtags::part eq '0') {
1.179 albertel 921: @Apache::inputtags::response=();
1.159 albertel 922: $result=&Apache::response::mandatory_part_meta;
923: }
1.215 albertel 924: $result.=&Apache::response::meta_part_order();
1.258 albertel 925: $result.=&Apache::response::meta_response_order();
1.159 albertel 926: } elsif ($target eq 'edit') {
927: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 928: $result .= &problem_edit_footer();
1.320 albertel 929: } elsif ($target eq 'modified') {
930: $result .= $token->[2];
931: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 932: }
1.155 albertel 933:
1.284 albertel 934: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 935: &Apache::inputtags::check_for_duplicate_ids();
936: }
1.204 albertel 937:
938: &reset_problem_globals('problem');
1.159 albertel 939:
940: return $result;
1.48 albertel 941: }
942:
1.108 albertel 943:
1.48 albertel 944: sub start_library {
1.159 albertel 945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 946: my ($result,$form_tag_start);
1.244 albertel 947: if ($$tagstack[0] eq 'library') {
948: &init_problem_globals('library');
949: $Apache::lonhomework::type='problem';
950: }
1.159 albertel 951: if ($target eq 'edit') {
1.343 albertel 952: ($result,$form_tag_start)=
953: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
954: 'Edit');
955: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 956: my $temp=&Apache::edit::insertlist($target,$token);
957: $result.=$temp;
958: } elsif ($target eq 'modified') {
959: $result=$token->[4];
960: $result.=&Apache::edit::handle_insert();
1.340 albertel 961: } elsif (($target eq 'web' || $target eq 'webgrade')
962: && $$tagstack[0] eq 'library'
963: && $env{'request.state'} eq "construct" ) {
1.159 albertel 964: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 965: ($result,$form_tag_start)=
966: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
967: $name);
1.159 albertel 968: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 969: $result.=" \n $form_tag_start".
1.159 albertel 970: '<input type="hidden" name="submitted" value="yes" />';
971: $result.=&problem_web_to_edit_header($rndseed);
972: }
973: return $result;
1.48 albertel 974: }
975:
976: sub end_library {
1.159 albertel 977: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
978: my $result='';
979: if ($target eq 'edit') {
980: $result=&problem_edit_footer();
981: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 982: $env{'request.state'} eq "construct") {
1.349 albertel 983: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 984: }
1.204 albertel 985: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 986: return $result;
1.197 www 987: }
988:
989: sub start_definetag {
1.326 albertel 990: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 991:
992: my $result;
993:
994: my $name = $token->[2]->{'name'};
1.326 albertel 995: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 996: if ($name=~/^\//) {
997: $result=
998: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
999: } else {
1000: $result=
1001: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1002: }
1003: $skip=~s/\</\<\;/gs;
1004: $skip=~s/\>/\>\;/gs;
1005: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1006: return $result;
1007: }
1008:
1009: sub end_definetag {
1010: return '';
1.1 albertel 1011: }
1012:
1013: sub start_block {
1.201 albertel 1014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1015:
1016: my $result;
1.1 albertel 1017:
1.339 albertel 1018: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1019: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1020: my $code = $token->[2]->{'condition'};
1.201 albertel 1021: if (defined($code)) {
1.137 albertel 1022: if (!$Apache::lonxml::default_homework_loaded) {
1023: &Apache::lonxml::default_homework_load($safeeval);
1024: }
1.131 albertel 1025: $result = &Apache::run::run($code,$safeeval);
1026: &Apache::lonxml::debug("block :$code: returned :$result:");
1027: } else {
1028: $result='1';
1029: }
1030: if ( ! $result ) {
1.201 albertel 1031: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1032: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1033: }
1034: $result='';
1035: } elsif ($target eq 'edit') {
1036: $result .=&Apache::edit::tag_start($target,$token);
1037: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1038: $token,40);
1039: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1040: } elsif ($target eq 'modified') {
1041: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1042: $safeeval,'condition');
1043: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1044: }
1.131 albertel 1045: return $result;
1.1 albertel 1046: }
1047:
1048: sub end_block {
1.167 www 1049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1050: my $result;
1051: if ($target eq "edit") {
1052: $result.= &Apache::edit::tag_end($target,$token,'');
1053: }
1054: return $result;
1055: }
1056:
1057: sub start_languageblock {
1.201 albertel 1058: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1059:
1060: my $result;
1061:
1.339 albertel 1062: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1063: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1064: my $include = $token->[2]->{'include'};
1065: my $exclude = $token->[2]->{'exclude'};
1066: my %languages=&Apache::loncommon::display_languages();
1067: $result='1';
1068: if ($include) {
1069: $result='';
1070: foreach (split(/\,/,$include)) {
1071: if ($languages{$_}) { $result='1'; }
1072: }
1073: }
1074: if ($exclude) {
1075: foreach (split(/\,/,$exclude)) {
1076: if ($languages{$_}) { $result='0'; }
1077: }
1078: }
1079: if ( ! $result ) {
1080: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1081: $style);
1082: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1083: }
1084: $result='';
1.167 www 1085: } elsif ($target eq 'edit') {
1086: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1087: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1088: $token,40);
1.211 albertel 1089: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1090: $token,40);
1091: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1092: } elsif ($target eq 'modified') {
1093: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1094: $safeeval,'include',
1095: 'exclude');
1.167 www 1096: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1097: }
1098: return $result;
1099: }
1100:
1101: sub end_languageblock {
1.170 www 1102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1103: my $result;
1.201 albertel 1104: if ($target eq "edit") {
1.170 www 1105: $result.= &Apache::edit::tag_end($target,$token,'');
1106: }
1107: return $result;
1108: }
1109:
1110: sub start_instructorcomment {
1.201 albertel 1111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1112:
1113: my $result;
1114:
1.339 albertel 1115: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1116: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1117: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1118: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1119: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1120: $parser,$style);
1.170 www 1121: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1122: }
1123: $result='';
1124: } elsif ($target eq 'edit') {
1125: $result .=&Apache::edit::tag_start($target,$token);
1126: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1127: }
1128: return $result;
1129: }
1130:
1131: sub end_instructorcomment {
1.159 albertel 1132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1133: my $result;
1134: if ($target eq "edit") {
1135: $result.= &Apache::edit::tag_end($target,$token,'');
1136: }
1137: return $result;
1.4 tsai 1138: }
1139:
1140: sub start_while {
1.326 albertel 1141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1142:
1.160 albertel 1143: my $result;
1.339 albertel 1144: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1145: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1146: my $code = $token->[2]->{'condition'};
1.4 tsai 1147:
1.160 albertel 1148: push( @Apache::structuretags::whileconds, $code);
1149: if (!$Apache::lonxml::default_homework_loaded) {
1150: &Apache::lonxml::default_homework_load($safeeval);
1151: }
1152: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1153: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1154: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1155: push( @Apache::structuretags::whileline, $token->[5]);
1156: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1157: if ( $result ) {
1158: &Apache::lonxml::newparser($parser,\$bodytext);
1159: }
1160: } elsif ($target eq 'edit') {
1161: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1162: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1163: $token,40);
1164: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1165: } elsif ($target eq 'modified') {
1166: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1167: $safeeval,'condition');
1168: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1169: }
1.160 albertel 1170: return $result;
1.4 tsai 1171: }
1172:
1173: sub end_while {
1.159 albertel 1174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1175: my $result;
1176:
1.339 albertel 1177: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1178: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1179: my $code = pop(@Apache::structuretags::whileconds);
1180: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1181: my $line = pop(@Apache::structuretags::whileline);
1182: my $return = &Apache::run::run($code,$safeeval);
1183: my $starttime=time;
1184: my $error=0;
1185: while ($return) {
1186: if (time-$starttime >
1187: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1188: #$return = 0; $error=1; next;
1.161 albertel 1189: }
1190: $result.=&Apache::scripttag::xmlparse($bodytext);
1191: $return = &Apache::run::run($code,$safeeval);
1192: }
1193: if ($error) {
1.270 albertel 1194: &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 1195: }
1196: } elsif ($target eq "edit") {
1197: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1198: }
1.160 albertel 1199: return $result;
1.1 albertel 1200: }
1.6 tsai 1201:
1.160 albertel 1202: # <randomlist show="1">
1.6 tsai 1203: # <tag1>..</tag1>
1204: # <tag2>..</tag2>
1205: # <tag3>..</tag3>
1.160 albertel 1206: # ...
1.6 tsai 1207: # </randomlist>
1208: sub start_randomlist {
1.326 albertel 1209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1210: my $result;
1.339 albertel 1211: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1212: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1213: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1214: my $b_parser= HTML::LCParser->new(\$body);
1215: $b_parser->xml_mode(1);
1216: $b_parser->marked_sections(1);
1.159 albertel 1217: my $b_tok;
1218: my @randomlist;
1219: my $list_item;
1220: while($b_tok = $b_parser->get_token() ) {
1221: if($b_tok->[0] eq 'S') { # start tag
1222: # get content of the tag until matching end tag
1223: # get all text upto the matching tag
1224: # and push the content into @randomlist
1225: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1226: $b_parser);
1227: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1228: push(@randomlist,$list_item);
1229: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1230: # $list_item</b>";
1231: }
1232: if($b_tok->[0] eq 'T') { # text
1233: # what to do with text in between tags?
1234: # print "<b>TEXT $b_tok->[1]</b><br />";
1235: }
1236: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1237: # print "<b>END-TAG $b_tok->[1]</b><br />";
1238: # }
1239: }
1.303 albertel 1240: if (@randomlist) {
1241: my @idx_arr = (0 .. $#randomlist);
1242: &Apache::structuretags::shuffle(\@idx_arr);
1243: my $bodytext = '';
1244: my $show=$#randomlist;
1245: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1246: $showarg--;
1247: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1248: for(0 .. $show) {
1249: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1250: }
1251: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1252: }
1253: } elsif ($target eq 'edit' ) {
1254: $result .=&Apache::edit::tag_start($target,$token);
1255: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1256: $token,5);
1257: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1258: } elsif ($target eq 'modified' ) {
1259: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1260: $safeeval,'show');
1261: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1262: }
1263: return $result;
1.7 tsai 1264: }
1265:
1266: sub shuffle {
1267: my $a=shift;
1268: my $i;
1.303 albertel 1269: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1270: &Apache::response::pushrandomnumber();
1.159 albertel 1271: for($i=@$a;--$i;) {
1272: my $j=int(&Math::Random::random_uniform() * ($i+1));
1273: next if $i == $j;
1274: @$a[$i,$j] = @$a[$j,$i];
1275: }
1.251 albertel 1276: &Apache::response::poprandomnumber();
1.7 tsai 1277: }
1.6 tsai 1278: }
1279:
1280: sub end_randomlist {
1.159 albertel 1281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1282: my $result;
1283: if ($target eq 'edit' ) {
1284: $result=&Apache::edit::tag_end($target,$token,
1285: 'End Randomly Parsed Block');
1286: }
1287: return $result;
1.6 tsai 1288: }
1289:
1.283 albertel 1290: sub ordered_show_check {
1291: my $last_part=$Apache::inputtags::partlist[-2];
1292: my $in_order=
1293: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1294: my $in_order_show=1;
1295: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1296: $in_order_show=&Apache::response::check_status($last_part);
1297: }
1298: return $in_order_show;
1299: }
1300:
1.11 albertel 1301: sub start_part {
1.326 albertel 1302: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1303: if (!$Apache::lonxml::metamode) {
1304: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1305: # duedates.
1306: }
1.159 albertel 1307: my $result='';
1308: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1309: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1310: $Apache::inputtags::part=$id;
1.177 albertel 1311: push(@Apache::inputtags::partlist,$id);
1312: @Apache::inputtags::response=();
1.159 albertel 1313: @Apache::inputtags::previous=();
1314: @Apache::inputtags::previous_version=();
1.241 albertel 1315: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1316: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1317: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1318: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1319: my $in_order_show=&ordered_show_check();
1.214 albertel 1320: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1321: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1322: &Apache::run::run($expression,$safeeval);
1.159 albertel 1323:
1324: if ($target eq 'meta') {
1.224 www 1325: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1326: return &Apache::response::mandatory_part_meta.
1327: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1328: } elsif ($target eq 'web' || $target eq 'grade' ||
1329: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1330: if ($hidden || !$in_order_show) {
1.326 albertel 1331: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1332: } else {
1333: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1334: push (@Apache::inputtags::status,$status);
1335: my $expression='$external::datestatus="'.$status.'";';
1336: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1337: &Apache::run::run($expression,$safeeval);
1.284 albertel 1338: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1339: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1340: }
1.216 albertel 1341: if (( $status eq 'CLOSED' ) ||
1342: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1343: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1344: ( $status eq 'BANNED') ||
1345: ( $status eq 'UNAVAILABLE') ||
1346: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1347: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1348: $style);
1.159 albertel 1349: if ( $target eq "web" ) {
1.211 albertel 1350: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1351: } elsif ( $target eq 'tex' ) {
1.284 albertel 1352: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1353: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1354: } else {
1.211 albertel 1355: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1356: }
1.159 albertel 1357: }
1358: } else {
1359: if ($target eq 'tex') {
1.284 albertel 1360: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1361: if ($$tagstack[-2] eq 'td') {
1362: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1363: } else {
1364: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1365: }
1.195 sakharuk 1366: }
1.159 albertel 1367: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1368: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1369: my @allkeys = split /,/,$allkeys;
1370: my $allow_print_points = 0;
1371: foreach my $partial_key (@allkeys) {
1.230 albertel 1372: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1373: if ($1 ne '0') {$allow_print_points=1;}
1374: }
1375: }
1.275 albertel 1376: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1377: if (defined($maxtries) && $maxtries < 0) {
1378: $allow_print_points=0;
1379: }
1.302 albertel 1380: if (lc($env{'course.'.$env{'request.course.id'}.
1381: '.disableexampointprint'}) eq 'yes') {
1382: $allow_print_points=0;
1383: }
1.222 sakharuk 1384: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1385: } elsif ($target eq 'web') {
1.356 ! www 1386: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1387: }
1388: }
1389: }
1390: } elsif ($target eq 'edit') {
1391: $result.=&Apache::edit::tag_start($target,$token);
1392: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1393: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1394: ' '.
1395: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1396: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1397: } elsif ($target eq 'modified') {
1398: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1399: $safeeval,'id','display');
1.159 albertel 1400: if ($constructtag) {
1.225 albertel 1401: #limiting ids to only letters numbers, and space
1.224 www 1402: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1403: $result = &Apache::edit::rebuild_tag($token);
1404: $result.=&Apache::edit::handle_insert();
1405: }
1406: }
1407: return $result;
1.11 albertel 1408: }
1409:
1410: sub end_part {
1.159 albertel 1411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1412: &Apache::lonxml::debug("in end_part $target ");
1413: my $status=$Apache::inputtags::status['-1'];
1414: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1415: my $in_order_show=&ordered_show_check();
1.321 albertel 1416: my $result;
1417: if (!$Apache::lonxml::metamode) {
1418: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1419: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1420: }
1.312 albertel 1421: if ($target eq 'grade') {
1.249 albertel 1422: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1423: !$hidden && $in_order_show) {
1.311 foxr 1424: $result.=&Apache::inputtags::grade;
1.249 albertel 1425: } else {
1426: # move any submission data to .hidden
1427: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1428: }
1.283 albertel 1429: } elsif (($target eq 'web' || $target eq 'tex') &&
1430: !$hidden && $in_order_show) {
1.159 albertel 1431: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1432: $target);
1.212 albertel 1433: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1434: $gradestatus='';
1435: }
1.311 foxr 1436: $result.=$gradestatus;
1.265 sakharuk 1437: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1438: } elsif ($target eq 'edit') {
1.311 foxr 1439: $result.=&Apache::edit::end_table();
1.322 albertel 1440: } elsif ($target eq 'modified') {
1441: $result .= $token->[2];
1442: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1443: }
1444: pop @Apache::inputtags::status;
1445: $Apache::inputtags::part='';
1.295 albertel 1446: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1447: return $result;
1.11 albertel 1448: }
1.1 albertel 1449:
1.25 albertel 1450: sub start_preduedate {
1.326 albertel 1451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1452: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1453: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1454: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1455: if (!$Apache::lonhomework::scantronmode &&
1456: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1457: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1458: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1459: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1460: }
1.24 albertel 1461: }
1.159 albertel 1462: return '';
1.24 albertel 1463: }
1464:
1.25 albertel 1465: sub end_preduedate {
1.159 albertel 1466: return '';
1.24 albertel 1467: }
1468:
1.25 albertel 1469: sub start_postanswerdate {
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 'webgrade') {
1.300 albertel 1472: if ($Apache::lonhomework::scantronmode ||
1473: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1474: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1475: }
1476: } elsif ($target eq 'tex') {
1.326 albertel 1477: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1478: }
1479: return '';
1.24 albertel 1480: }
1481:
1.25 albertel 1482: sub end_postanswerdate {
1.159 albertel 1483: return '';
1.24 albertel 1484: }
1485:
1.25 albertel 1486: sub start_notsolved {
1.326 albertel 1487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1488: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1489: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1490: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1491: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1492: if ($gradestatus =~ /^correct/ &&
1493: &Apache::response::show_answer()) {
1.159 albertel 1494: &Apache::lonxml::debug("skipping");
1.326 albertel 1495: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1496: }
1.24 albertel 1497: }
1.159 albertel 1498: return '';
1.24 albertel 1499: }
1500:
1.25 albertel 1501: sub end_notsolved {
1.159 albertel 1502: return '';
1.24 albertel 1503: }
1504:
1505: sub start_solved {
1.326 albertel 1506: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1507: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1508: $target eq 'tex') {
1509: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1510: if ($gradestatus !~ /^correct/ ||
1511: !&Apache::response::show_answer()) {
1.326 albertel 1512: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1513: }
1.24 albertel 1514: }
1.159 albertel 1515: return '';
1.24 albertel 1516: }
1517:
1518: sub end_solved {
1.248 albertel 1519: return '';
1520: }
1521:
1522: sub start_problemtype {
1.326 albertel 1523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1524: my $result;
1.339 albertel 1525: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1526: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1527: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1528: if (!defined($mode)) { $mode='show'; }
1529: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1530: my $found=0;
1531: foreach my $type (split(',',$for)) {
1532: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1533: }
1534: if ($mode eq 'show' && !$found) {
1.326 albertel 1535: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1536: }
1537: if ($mode eq 'hide' && $found) {
1.326 albertel 1538: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1539: }
1540: } elsif ($target eq 'edit') {
1541: $result .=&Apache::edit::tag_start($target,$token);
1542: $result.=&Apache::edit::select_arg('Mode:','mode',
1543: [['show','Show'],
1544: ['hide','Hide']]
1545: ,$token);
1546: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1547: [ ['exam','Exam/Quiz Problem'],
1548: ['survey','Survey'],
1549: ['problem','Homework Problem'] ]
1550: ,$token);
1551: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1552: } elsif ($target eq 'modified') {
1553: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1554: $safeeval,'mode','for');
1555: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1556: }
1557: return $result;
1558: }
1559:
1560: sub end_problemtype {
1.159 albertel 1561: return '';
1.24 albertel 1562: }
1.34 albertel 1563:
1564: sub start_startouttext {
1.159 albertel 1565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1566: my @result=(''.'');
1567: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1568: return (@result);
1.34 albertel 1569: }
1.159 albertel 1570:
1.34 albertel 1571: sub end_startouttext {
1.326 albertel 1572: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1573: my $result='';
1574: my $text='';
1575:
1576: if ($target eq 'edit') {
1.326 albertel 1577: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1578: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1579: <td>".&mt('Delete:').
1.159 albertel 1580: &Apache::edit::deletelist($target,$token)
1581: ."</td>
1.42 albertel 1582: <td>".
1.159 albertel 1583: &Apache::edit::insertlist($target,$token).
1584: &Apache::edit::end_row().
1585: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1586: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1587: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1588: }
1589: if ($target eq 'modified') {
1.219 albertel 1590: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1591: }
1592: if ($target eq 'tex') {
1593: $result .= '\noindent ';
1594: }
1595: return $result;
1.34 albertel 1596: }
1.159 albertel 1597:
1.34 albertel 1598: sub start_endouttext {
1.159 albertel 1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1600: my $result='';
1601: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1602: if ($target eq "modified") {
1603: $result='<endouttext />'.
1604: &Apache::edit::handle_insertafter('startouttext'); }
1605: return $result;
1.34 albertel 1606: }
1.159 albertel 1607:
1.34 albertel 1608: sub end_endouttext {
1.159 albertel 1609: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1610: my @result=('','');
1611: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1612: return (@result);
1.34 albertel 1613: }
1.159 albertel 1614:
1.45 albertel 1615: sub delete_startouttext {
1.326 albertel 1616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1617: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1618: my $text=$$parser['-1']->get_text("/endouttext");
1619: my $ntoken=$$parser['-1']->get_token();
1620: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1621: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1622: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1623: # they did the last time round
1624: &Apache::lonxml::increasedepth($ntoken);
1625: &Apache::lonxml::decreasedepth($ntoken);
1626: return 1;
1.193 www 1627: }
1628:
1629: sub start_simpleeditbutton {
1630: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1631: my $result='';
1.284 albertel 1632: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1633: ($target eq 'web') &&
1.330 albertel 1634: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1635: my $url=$env{'request.noversionuri'};
1.193 www 1636: $url=~s/\?.*$//;
1.278 albertel 1637: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1638: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 ! www 1639: '<a href="'.$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 1640: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1641: }
1642: return $result;
1643: }
1644:
1645: sub end_simpleeditbutton {
1646: return '';
1.45 albertel 1647: }
1.34 albertel 1648:
1.1 albertel 1649: 1;
1650: __END__
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