Annotation of loncom/homework/structuretags.pm, revision 1.360
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.360 ! albertel 4: # $Id: structuretags.pm,v 1.359 2006/06/26 22:33:22 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>'.
1.359 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 $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
279: if (!$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 $result;
1.48 albertel 342: }
343:
1.65 albertel 344: sub initialize_storage {
1.357 albertel 345: my ($given_symb) = @_;
1.353 albertel 346: undef(%Apache::lonhomework::results);
347: undef(%Apache::lonhomework::history);
1.357 albertel 348: my ($symb,$courseid,$domain,$name) =
349: &Apache::lonxml::whichuser($given_symb);
1.353 albertel 350:
351: # anonymous users (CODEd exams) have no data
352: if ($name eq 'anonymous'
353: && !defined($domain)) {
354: return;
355: }
356:
1.333 albertel 357: if ($env{'request.state'} eq 'construct'
358: || $symb eq ''
359: || $Apache::lonhomework::type eq 'practice') {
360:
361: my $namespace = $symb || $env{'request.uri'};
362: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
363: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
364: $env{'form.newrandomization'} eq &mt('New Randomization')) {
365: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
366: &Apache::lonxml::debug("Attempt reset");
367: }
1.159 albertel 368: %Apache::lonhomework::history=
1.333 albertel 369: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 370: my ($temp)=keys %Apache::lonhomework::history ;
371: &Apache::lonxml::debug("Return message of $temp");
372: } else {
373: %Apache::lonhomework::history=
374: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
375: }
1.353 albertel 376:
1.159 albertel 377: #ignore error conditions
1.67 albertel 378: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 379: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 380: }
381:
382: # -------------------------------------------------------------finalize_storage
383: # Stores away the result has to a student's environment
384: # checks form.grade_ for specific values, other wises stores
385: # to the running users environment
1.285 raeburn 386: # Will increment totals for attempts, students, and corrects
387: # if running user has student role.
1.65 albertel 388: sub finalize_storage {
1.357 albertel 389: my ($given_symb) = @_;
1.159 albertel 390: my $result;
1.289 albertel 391: if (%Apache::lonhomework::results) {
1.323 albertel 392: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
393: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 394: my ($symb,$courseid,$domain,$name) =
395: &Apache::lonxml::whichuser($given_symb);
1.333 albertel 396: if ($env{'request.state'} eq 'construct'
397: || $symb eq ''
398: || $Apache::lonhomework::type eq 'practice') {
399: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 400: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 401: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 402: $namespace,'',$domain,$name);
1.159 albertel 403: &Apache::lonxml::debug('Construct Store return message:'.$result);
404: } else {
405: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
406: $symb,$courseid,$domain,$name);
407: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 408: if ($env{'request.role'} =~/^st/) {
409: &store_aggregates($symb,$courseid);
410: }
1.159 albertel 411: }
1.323 albertel 412: } else {
413: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 414: }
1.159 albertel 415: return $result;
1.65 albertel 416: }
1.289 albertel 417: use Data::Dumper;
1.65 albertel 418:
1.285 raeburn 419: # -------------------------------------------------------------store_aggregates
420: # Sends hash of values to be incremented in nohist_resourcetracker.db
421: # for the course. Increments total number of attempts, unique students
422: # and corrects for each part for an instance of a problem, as appropriate.
423: sub store_aggregates {
424: my ($symb,$courseid) = @_;
1.286 albertel 425: my %aggregate;
426: my @parts;
1.288 albertel 427: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
428: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 429: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 430: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 431: push(@parts, $1);
1.285 raeburn 432: }
433: }
1.286 albertel 434: foreach my $part (@parts) {
435: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
436: eq 'APPROX_ANS' ||
437: $Apache::lonhomework::results{'resource.'.$part.'.award'}
438: eq 'EXACT_ANS') {
1.287 albertel 439: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 440: }
1.286 albertel 441: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 442: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 443: } else {
1.293 albertel 444: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 445: if ($last_reset) {
1.293 albertel 446: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 447: $aggregate{$symb."\0".$part."\0users"} = 1;
448: }
449: }
1.285 raeburn 450: }
1.287 albertel 451: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 452: }
1.292 raeburn 453: if (keys (%aggregate) > 0) {
1.289 albertel 454: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 455: $cdomain,$cname);
456: }
457: }
1.289 albertel 458:
1.65 albertel 459: sub checkout_msg {
1.211 albertel 460: my %lt=&Apache::lonlocal::texthash(
461: 'resource'=>'The resource needs to be checked out',
462: '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.',
463: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
464: 'checkout'=>'Check out Exam for Viewing',
465: 'checkout?'=>'Check out Exam?');
1.352 albertel 466: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 467: return (<<ENDCHECKOUT);
1.211 albertel 468: <h2>$lt{'resource'}</h2>
469: <p>$lt{'id_expln'}</p>
470: <font color="red">
471: <p>$lt{'warning'}</p>
1.91 albertel 472: </font>
1.352 albertel 473: <form name="checkout" method="POST" action="$uri">
1.91 albertel 474: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 475: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 476: </form>
477: ENDCHECKOUT
478: }
479:
1.252 albertel 480: sub firstaccess_msg {
1.253 albertel 481: my ($time,$symb)=@_;
482: my ($map)=&Apache::lonnet::decode_symb($symb);
483: my $foldertitle=&Apache::lonnet::gettitle($map);
484: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 485: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 486: return (<<ENDCHECKOUT);
1.253 albertel 487: <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 488: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 489: <input type="hidden" name="markaccess" value="yes" />
490: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
491: </form>
492: ENDCHECKOUT
493: }
494:
1.204 albertel 495: sub init_problem_globals {
496: my ($type)=@_;
497: #initialize globals
1.308 foxr 498: # For problems, we start out in part 0 (outside a <part> tag).
499: # and part 0 is used to describe the main body of the <problem>
500: #
1.204 albertel 501: if ($type eq 'problem') {
502: $Apache::inputtags::part='0';
503: @Apache::inputtags::partlist=('0');
1.266 albertel 504: $Apache::lonhomework::problemstatus=&get_problem_status('0');
505: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 506:
1.266 albertel 507: } elsif ($type eq 'library') {
1.204 albertel 508: $Apache::inputtags::part='';
509: @Apache::inputtags::partlist=();
510: $Apache::lonhomework::problemstatus='';
1.266 albertel 511: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 512:
1.304 albertel 513: } elsif ($type eq 'Task') {
514: $Apache::inputtags::part='0';
515: @Apache::inputtags::partlist=('0');
516: $Apache::lonhomework::problemstatus='';
517: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 518: }
519: @Apache::inputtags::responselist = ();
520: @Apache::inputtags::importlist = ();
521: @Apache::inputtags::previous=();
522: @Apache::inputtags::previous_version=();
523: $Apache::structuretags::printanswer='No';
524: @Apache::structuretags::whileconds=();
525: @Apache::structuretags::whilebody=();
526: @Apache::structuretags::whileline=();
527: $Apache::lonhomework::scantronmode=0;
528: undef($Apache::lonhomework::name);
1.358 albertel 529: undef($Apache::lonhomework::default_type);
530: undef($Apache::lonhomework::type);
531: undef($Apache::lonhomework::problemstatus);
1.204 albertel 532: }
533:
534: sub reset_problem_globals {
535: my ($type)=@_;
536: undef(%Apache::lonhomework::history);
537: undef(%Apache::lonhomework::results);
538: undef($Apache::inputtags::part);
1.208 albertel 539: #don't undef this, lonhomework.pm takes care of this, we use this to
540: #detect if we try to do 2 problems in one file
541: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 542: undef($Apache::lonhomework::name);
1.358 albertel 543: undef($Apache::lonhomework::default_type);
544: undef($Apache::lonhomework::type);
545: undef($Apache::lonhomework::scantronmode);
546: undef($Apache::lonhomework::problemstatus);
547: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 548: }
549:
1.241 albertel 550: sub set_problem_state {
1.240 albertel 551: my ($part)=@_;
1.284 albertel 552: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 553: $Apache::lonhomework::history{"resource.$part.solved"}=
554: 'correct_by_student';
555: }
556: }
557:
1.241 albertel 558: sub get_problem_status {
559: my ($part)=@_;
1.267 albertel 560: my $problem_status;
1.284 albertel 561: if ($env{'request.state'} eq 'construct' &&
562: defined($env{'form.problemstatus'})) {
563: $problem_status=$env{'form.problemstatus'};
1.267 albertel 564: } else {
565: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
566: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 567: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 568: }
569: return $problem_status;
570: }
571:
1.9 albertel 572: sub start_problem {
1.326 albertel 573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 574:
1.311 foxr 575: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 576: if (!$Apache::lonxml::metamode) {
577: &Apache::lonxml::startredirection();
578: }
1.311 foxr 579:
1.308 foxr 580: # Problems don't nest and we don't allow more than one <problem> in
581: # a .problem file.
582: #
1.184 albertel 583: if ( $Apache::inputtags::part ne '' ||
584: $Apache::lonhomework::parsing_a_problem) {
585: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 586: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 587: return '';
588: }
1.184 albertel 589:
590: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 591: &init_problem_globals('problem');
1.166 albertel 592:
1.284 albertel 593: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 594: $Apache::lonhomework::scantronmode=1;
595: }
1.161 albertel 596:
1.246 albertel 597: &initialize_storage();
1.159 albertel 598: if ($target ne 'analyze') {
599: if ($target eq 'web') {
600: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 601: }
1.284 albertel 602: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 603: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 604: if (($env{'request.state'} eq 'construct') &&
605: defined($env{'form.problemtype'})) {
606: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 607: }
1.332 albertel 608: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 609: }
1.164 albertel 610: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 611: my $uri=$env{'request.uri'};
1.159 albertel 612: if ($uri=~/\.(\w+)$/) {
613: $Apache::lonhomework::type=$1;
614: &Apache::lonxml::debug("Using type of $1");
615: } else {
616: $Apache::lonhomework::type='problem';
617: &Apache::lonxml::debug("Using default type, problem, :$uri:");
618: }
1.87 albertel 619: }
1.301 albertel 620: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 621:
1.159 albertel 622: #added vars to the scripting enviroment
1.213 albertel 623: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 624: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 625: &Apache::run::run($expression,$safeeval);
1.159 albertel 626: my $status;
627: my $accessmsg;
628:
1.343 albertel 629: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 630: my ($result,$form_tag_start);
1.354 albertel 631: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
632: || $target eq 'edit') {
1.350 albertel 633: ($result,$form_tag_start) =
634: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
635: $name);
636: }
637:
1.284 albertel 638: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 639:
640: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
641: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
642: $target eq 'tex') {
643: #handle exam checkout
644: if ($Apache::lonhomework::type eq 'exam') {
645: my $token=
646: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 647: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 648: $token=&Apache::lonxml::maketoken();
649: $Apache::lonhomework::history{"resource.0.outtoken"}=
650: $token;
651: }
1.343 albertel 652: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 653: }
1.284 albertel 654: if ($env{'form.markaccess'}) {
1.252 albertel 655: &Apache::lonnet::set_first_access('map');
656: }
1.159 albertel 657: #handle rand seed in construction space
658: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 659: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 660: if ($env{'request.state'} ne "construct" &&
661: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 662: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
663: $rndseed.'" />'.
664: '<input type="submit" name="resetdata"
1.334 albertel 665: value="'.&mt('New Problem Variation').'" />';
666: if (exists($env{'form.username'})) {
667: $form_tag_start.=
1.164 albertel 668: '<input type="hidden" name="username"
1.284 albertel 669: value="'.$env{'form.username'}.'" />';
1.334 albertel 670: }
1.333 albertel 671: if ($env{'request.role.adv'}) {
1.267 albertel 672: $form_tag_start.=
1.300 albertel 673: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 674: if (defined($env{'form.showallfoils'})) {
1.267 albertel 675: $form_tag_start.='checked="on"';
676: }
1.300 albertel 677: $form_tag_start.= ' />'.&mt(' Show All Foils').
678: '</label>';
1.267 albertel 679: }
680: $form_tag_start.='<hr />';
1.162 albertel 681: }
1.324 albertel 682:
683: ($status,$accessmsg,my $slot_name,my $slot) =
684: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 685: push (@Apache::inputtags::status,$status);
1.324 albertel 686:
1.159 albertel 687: my $expression='$external::datestatus="'.$status.'";';
688: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
689: &Apache::run::run($expression,$safeeval);
690: &Apache::lonxml::debug("Got $status");
1.324 albertel 691:
1.159 albertel 692: if (( $status eq 'CLOSED' ) ||
693: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 694: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 695: ( $status eq 'BANNED') ||
1.216 albertel 696: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 697: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 698: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 699: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
700: $style);
1.159 albertel 701: if ( $target eq "web" ) {
1.343 albertel 702: my $msg;
1.159 albertel 703: if ($status eq 'UNAVAILABLE') {
1.245 albertel 704: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 705: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 706: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 707: }
1.216 albertel 708: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 709: $msg.='The problem '.$accessmsg;
710: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 711: $msg.=&checkout_msg();
1.252 albertel 712: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 713: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 714: } elsif ($status eq 'NOT_IN_A_SLOT') {
715: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 716: }
717: $result.=$msg.'<br />';
718: } elsif ($target eq 'tex') {
1.332 albertel 719: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
720: : '\begin{minipage}{\textwidth}';
721: $result.='\begin{document}\noindent \vskip 1 mm '.
722: $startminipage.'\vskip 0 mm';
1.159 albertel 723: if ($status eq 'UNAVAILABLE') {
1.211 albertel 724: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 725: } else {
1.211 albertel 726: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 727: }
728: }
1.324 albertel 729: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 730: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
731: $style);
1.324 albertel 732: if ($target eq 'web') {
733: $result .= &Apache::bridgetask::proctor_validation_screen();
734: } elsif ($target eq 'grade') {
735: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
736: 'problem');
737: }
1.159 albertel 738: } elsif ($target eq 'web') {
1.360 ! albertel 739: if ($status eq 'CAN_ANSWER'
! 740: && $slot_name ne ''
! 741: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
! 742: # unproctored slot access, self checkin
! 743: &Apache::bridgetask::check_in('problem',undef,undef,
! 744: $slot_name);
! 745: }
1.343 albertel 746: $result.="\n $form_tag_start".
1.227 albertel 747: '<input type="hidden" name="submitted" value="yes" />';
748: # create a page header and exit
1.284 albertel 749: if ($env{'request.state'} eq "construct") {
750: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 751: }
752: # if we are viewing someone else preserve that info
1.284 albertel 753: if (defined $env{'form.grade_symb'}) {
1.227 albertel 754: foreach my $field ('symb','courseid','domain','username') {
755: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 756: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 757: }
758: }
759: } elsif ($target eq 'tex') {
1.319 foxr 760: $result .= 'INSERTTEXFRONTMATTERHERE';
761:
1.99 sakharuk 762: }
1.159 albertel 763: } elsif ($target eq 'edit') {
1.343 albertel 764: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 765: $Apache::lonxml::warnings_error_header=
766: &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 767: my $temp=&Apache::edit::insertlist($target,$token);
768: $result.=$temp;
769: } elsif ($target eq 'modified') {
770: $result=$token->[4];
771: $result.=&Apache::edit::handle_insert();
772: } else {
773: # page_start returned a starting result, delete it if we don't need it
774: $result = '';
1.99 sakharuk 775: }
1.159 albertel 776: return $result;
1.9 albertel 777: }
778:
779: sub end_problem {
1.159 albertel 780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 781: my $result;
1.310 foxr 782:
1.321 albertel 783: if (!$Apache::lonxml::metamode) {
784: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 785: $Apache::lonxml::post_evaluate=0;
1.321 albertel 786: }
1.319 foxr 787:
788: if ($target eq 'tex') {
1.321 albertel 789:
790: # Figure out the front matter and replace the
791: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
792: # this in end_problem because whether or not we display due
793: # dates depends on whether due dates have already been
794: # displayed in the problem parts.
795:
1.319 foxr 796: my $frontmatter = '';
797: my $startminipage = '';
798: if (not $env{'form.problem_split'}=~/yes/) {
799: $startminipage = '\begin{minipage}{\textwidth}';
800: }
801: my $id = $Apache::inputtags::part;
802: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
803: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
804: my @packages = split /,/,$packages;
805: my $allow_print_points = 0;
806: foreach my $partial_key (@packages) {
807: if ($partial_key=~m/^part_0$/) {
808: $allow_print_points=1;
809: }
810: }
811: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
812: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
813: if (lc($env{'course.'.$env{'request.course.id'}.
814: '.disableexampointprint'}) eq 'yes') {
815: $allow_print_points=0;
816: }
817: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
818: 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 ';
819: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
820: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
821:
822: # Figure out what the due date is and if we need to print
823: # it in the problem header. We have been logging the
824: # last due date written to file.
825:
826: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
827: my $duedate = POSIX::strftime("%c",localtime($duetime));
828: my $temp_file;
829: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
830:
831: # Figure out what the last printed due date is or set it
832: # to the epoch if no duedates have been printed.
833:
834: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
835: if (-e $filename) {
836: $temp_file = Apache::File->new($filename);
837: my @due_file = <$temp_file>;
838: $due_file_content = $due_file[$#due_file];
839: chomp $due_file_content;
840: }
841:
842: # We display the due date iff it is not the same as the last
843: # duedate in problem header ($due_file_content), and
844: # none of our parts displayed a duedate.
845: #
846: my $parts_with_displayduedate;
847: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
848: $parts_with_displayduedate =
849: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
850: } else {
851: $parts_with_displayduedate = 0;
852: }
853: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
854: $temp_file = Apache::File->new('>'.$filename);
855: print $temp_file "$duetime\n";
856: if (not $env{'request.symb'} =~ m/\.page_/) {
857: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
858: $frontmatter .= $begin_doc.
859: '\textit{Due date: '.$duedate.'} '.$toc_line;
860: } else {
861: $frontmatter.= $begin_doc.$toc_line;
862: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
863: }
864: } else {
865: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
866: }
867: } else {
868: if (not $env{'request.symb'} =~ m/\.page_/) {
869: $frontmatter .= $begin_doc.$toc_line;
870: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
871: } else {
872: $frontmatter .= '\vskip 1mm \\\\\\\\';
873: }
874: }
875: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
876: }
877:
1.159 albertel 878: my $status=$Apache::inputtags::status['-1'];
879: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
880: $target eq 'tex') {
1.249 albertel 881: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 882: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 883: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
884: &Apache::inputtags::grade;
1.324 albertel 885: } elsif ($status eq 'NEEDS_CHECKIN') {
886: # no need to grade, and don't want to hide data
1.249 albertel 887: } else {
888: # move any submission data to .hidden
889: &Apache::inputtags::hidealldata($Apache::inputtags::part);
890: }
1.159 albertel 891: } elsif ( ($target eq 'web' || $target eq 'tex') &&
892: $Apache::inputtags::part eq '0' &&
1.252 albertel 893: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 894: # if part is zero, no <part>s existed, so we need show the current
895: # grading status
896: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
897: $result.= $gradestatus;
898: }
899: if (
1.284 albertel 900: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 901: ($target eq 'answer') || ($target eq 'tex')
902: ) {
1.227 albertel 903: if ($target ne 'tex' &&
1.284 albertel 904: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 905: $result.="</form>";
1.348 albertel 906: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 907: }
908: if ($target eq 'web') {
1.346 albertel 909: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 910: } elsif ($target eq 'tex') {
1.178 sakharuk 911: my $endminipage = '';
1.284 albertel 912: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 913: $endminipage = '\end{minipage}';
914: }
1.284 albertel 915: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 916: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 917: } else {
1.262 sakharuk 918: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 919: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 920: $result .= $endminipage.'\end{document} ';
921: } else {
922: $result .= '';
923: }
1.159 albertel 924: }
925: }
926: }
927: if ($target eq 'grade') {
928: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
929: &finalize_storage();
930: }
1.284 albertel 931: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
932: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 933: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 934: # normally we get it from above, but in CSTR
1.172 albertel 935: # we always show answer mode too.
1.159 albertel 936: }
937: } elsif ($target eq 'meta') {
938: if ($Apache::inputtags::part eq '0') {
1.179 albertel 939: @Apache::inputtags::response=();
1.159 albertel 940: $result=&Apache::response::mandatory_part_meta;
941: }
1.215 albertel 942: $result.=&Apache::response::meta_part_order();
1.258 albertel 943: $result.=&Apache::response::meta_response_order();
1.159 albertel 944: } elsif ($target eq 'edit') {
945: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 946: $result .= &problem_edit_footer();
1.320 albertel 947: } elsif ($target eq 'modified') {
948: $result .= $token->[2];
949: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 950: }
1.155 albertel 951:
1.284 albertel 952: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 953: &Apache::inputtags::check_for_duplicate_ids();
954: }
1.204 albertel 955:
956: &reset_problem_globals('problem');
1.159 albertel 957:
958: return $result;
1.48 albertel 959: }
960:
1.108 albertel 961:
1.48 albertel 962: sub start_library {
1.159 albertel 963: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 964: my ($result,$form_tag_start);
1.244 albertel 965: if ($$tagstack[0] eq 'library') {
966: &init_problem_globals('library');
967: $Apache::lonhomework::type='problem';
968: }
1.159 albertel 969: if ($target eq 'edit') {
1.343 albertel 970: ($result,$form_tag_start)=
971: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
972: 'Edit');
973: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 974: my $temp=&Apache::edit::insertlist($target,$token);
975: $result.=$temp;
976: } elsif ($target eq 'modified') {
977: $result=$token->[4];
978: $result.=&Apache::edit::handle_insert();
1.340 albertel 979: } elsif (($target eq 'web' || $target eq 'webgrade')
980: && $$tagstack[0] eq 'library'
981: && $env{'request.state'} eq "construct" ) {
1.159 albertel 982: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 983: ($result,$form_tag_start)=
984: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
985: $name);
1.159 albertel 986: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 987: $result.=" \n $form_tag_start".
1.159 albertel 988: '<input type="hidden" name="submitted" value="yes" />';
989: $result.=&problem_web_to_edit_header($rndseed);
990: }
991: return $result;
1.48 albertel 992: }
993:
994: sub end_library {
1.159 albertel 995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
996: my $result='';
997: if ($target eq 'edit') {
998: $result=&problem_edit_footer();
999: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 1000: $env{'request.state'} eq "construct") {
1.349 albertel 1001: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1002: }
1.204 albertel 1003: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 1004: return $result;
1.197 www 1005: }
1006:
1007: sub start_definetag {
1.326 albertel 1008: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1009:
1010: my $result;
1011:
1012: my $name = $token->[2]->{'name'};
1.326 albertel 1013: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1014: if ($name=~/^\//) {
1015: $result=
1016: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1017: } else {
1018: $result=
1019: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1020: }
1021: $skip=~s/\</\<\;/gs;
1022: $skip=~s/\>/\>\;/gs;
1023: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1024: return $result;
1025: }
1026:
1027: sub end_definetag {
1028: return '';
1.1 albertel 1029: }
1030:
1031: sub start_block {
1.201 albertel 1032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1033:
1034: my $result;
1.1 albertel 1035:
1.339 albertel 1036: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1037: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1038: my $code = $token->[2]->{'condition'};
1.201 albertel 1039: if (defined($code)) {
1.137 albertel 1040: if (!$Apache::lonxml::default_homework_loaded) {
1041: &Apache::lonxml::default_homework_load($safeeval);
1042: }
1.131 albertel 1043: $result = &Apache::run::run($code,$safeeval);
1044: &Apache::lonxml::debug("block :$code: returned :$result:");
1045: } else {
1046: $result='1';
1047: }
1048: if ( ! $result ) {
1.201 albertel 1049: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1050: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1051: }
1052: $result='';
1053: } elsif ($target eq 'edit') {
1054: $result .=&Apache::edit::tag_start($target,$token);
1055: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1056: $token,40);
1057: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1058: } elsif ($target eq 'modified') {
1059: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1060: $safeeval,'condition');
1061: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1062: }
1.131 albertel 1063: return $result;
1.1 albertel 1064: }
1065:
1066: sub end_block {
1.167 www 1067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1068: my $result;
1069: if ($target eq "edit") {
1070: $result.= &Apache::edit::tag_end($target,$token,'');
1071: }
1072: return $result;
1073: }
1074:
1075: sub start_languageblock {
1.201 albertel 1076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1077:
1078: my $result;
1079:
1.339 albertel 1080: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1081: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1082: my $include = $token->[2]->{'include'};
1083: my $exclude = $token->[2]->{'exclude'};
1084: my %languages=&Apache::loncommon::display_languages();
1085: $result='1';
1086: if ($include) {
1087: $result='';
1088: foreach (split(/\,/,$include)) {
1089: if ($languages{$_}) { $result='1'; }
1090: }
1091: }
1092: if ($exclude) {
1093: foreach (split(/\,/,$exclude)) {
1094: if ($languages{$_}) { $result='0'; }
1095: }
1096: }
1097: if ( ! $result ) {
1098: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1099: $style);
1100: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1101: }
1102: $result='';
1.167 www 1103: } elsif ($target eq 'edit') {
1104: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1105: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1106: $token,40);
1.211 albertel 1107: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1108: $token,40);
1109: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1110: } elsif ($target eq 'modified') {
1111: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1112: $safeeval,'include',
1113: 'exclude');
1.167 www 1114: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1115: }
1116: return $result;
1117: }
1118:
1119: sub end_languageblock {
1.170 www 1120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1121: my $result;
1.201 albertel 1122: if ($target eq "edit") {
1.170 www 1123: $result.= &Apache::edit::tag_end($target,$token,'');
1124: }
1125: return $result;
1126: }
1127:
1128: sub start_instructorcomment {
1.201 albertel 1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1130:
1131: my $result;
1132:
1.339 albertel 1133: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1134: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1135: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1136: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1137: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1138: $parser,$style);
1.170 www 1139: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1140: }
1141: $result='';
1142: } elsif ($target eq 'edit') {
1143: $result .=&Apache::edit::tag_start($target,$token);
1144: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1145: }
1146: return $result;
1147: }
1148:
1149: sub end_instructorcomment {
1.159 albertel 1150: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1151: my $result;
1152: if ($target eq "edit") {
1153: $result.= &Apache::edit::tag_end($target,$token,'');
1154: }
1155: return $result;
1.4 tsai 1156: }
1157:
1158: sub start_while {
1.326 albertel 1159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1160:
1.160 albertel 1161: my $result;
1.339 albertel 1162: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1163: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1164: my $code = $token->[2]->{'condition'};
1.4 tsai 1165:
1.160 albertel 1166: push( @Apache::structuretags::whileconds, $code);
1167: if (!$Apache::lonxml::default_homework_loaded) {
1168: &Apache::lonxml::default_homework_load($safeeval);
1169: }
1170: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1171: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1172: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1173: push( @Apache::structuretags::whileline, $token->[5]);
1174: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1175: if ( $result ) {
1176: &Apache::lonxml::newparser($parser,\$bodytext);
1177: }
1178: } elsif ($target eq 'edit') {
1179: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1180: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1181: $token,40);
1182: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1183: } elsif ($target eq 'modified') {
1184: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1185: $safeeval,'condition');
1186: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1187: }
1.160 albertel 1188: return $result;
1.4 tsai 1189: }
1190:
1191: sub end_while {
1.159 albertel 1192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1193: my $result;
1194:
1.339 albertel 1195: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1196: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1197: my $code = pop(@Apache::structuretags::whileconds);
1198: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1199: my $line = pop(@Apache::structuretags::whileline);
1200: my $return = &Apache::run::run($code,$safeeval);
1201: my $starttime=time;
1202: my $error=0;
1203: while ($return) {
1204: if (time-$starttime >
1205: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1206: #$return = 0; $error=1; next;
1.161 albertel 1207: }
1208: $result.=&Apache::scripttag::xmlparse($bodytext);
1209: $return = &Apache::run::run($code,$safeeval);
1210: }
1211: if ($error) {
1.270 albertel 1212: &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 1213: }
1214: } elsif ($target eq "edit") {
1215: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1216: }
1.160 albertel 1217: return $result;
1.1 albertel 1218: }
1.6 tsai 1219:
1.160 albertel 1220: # <randomlist show="1">
1.6 tsai 1221: # <tag1>..</tag1>
1222: # <tag2>..</tag2>
1223: # <tag3>..</tag3>
1.160 albertel 1224: # ...
1.6 tsai 1225: # </randomlist>
1226: sub start_randomlist {
1.326 albertel 1227: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1228: my $result;
1.339 albertel 1229: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1230: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1231: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1232: my $b_parser= HTML::LCParser->new(\$body);
1233: $b_parser->xml_mode(1);
1234: $b_parser->marked_sections(1);
1.159 albertel 1235: my $b_tok;
1236: my @randomlist;
1237: my $list_item;
1238: while($b_tok = $b_parser->get_token() ) {
1239: if($b_tok->[0] eq 'S') { # start tag
1240: # get content of the tag until matching end tag
1241: # get all text upto the matching tag
1242: # and push the content into @randomlist
1243: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1244: $b_parser);
1245: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1246: push(@randomlist,$list_item);
1247: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1248: # $list_item</b>";
1249: }
1250: if($b_tok->[0] eq 'T') { # text
1251: # what to do with text in between tags?
1252: # print "<b>TEXT $b_tok->[1]</b><br />";
1253: }
1254: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1255: # print "<b>END-TAG $b_tok->[1]</b><br />";
1256: # }
1257: }
1.303 albertel 1258: if (@randomlist) {
1259: my @idx_arr = (0 .. $#randomlist);
1260: &Apache::structuretags::shuffle(\@idx_arr);
1261: my $bodytext = '';
1262: my $show=$#randomlist;
1263: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1264: $showarg--;
1265: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1266: for(0 .. $show) {
1267: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1268: }
1269: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1270: }
1271: } elsif ($target eq 'edit' ) {
1272: $result .=&Apache::edit::tag_start($target,$token);
1273: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1274: $token,5);
1275: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1276: } elsif ($target eq 'modified' ) {
1277: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1278: $safeeval,'show');
1279: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1280: }
1281: return $result;
1.7 tsai 1282: }
1283:
1284: sub shuffle {
1285: my $a=shift;
1286: my $i;
1.303 albertel 1287: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1288: &Apache::response::pushrandomnumber();
1.159 albertel 1289: for($i=@$a;--$i;) {
1290: my $j=int(&Math::Random::random_uniform() * ($i+1));
1291: next if $i == $j;
1292: @$a[$i,$j] = @$a[$j,$i];
1293: }
1.251 albertel 1294: &Apache::response::poprandomnumber();
1.7 tsai 1295: }
1.6 tsai 1296: }
1297:
1298: sub end_randomlist {
1.159 albertel 1299: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1300: my $result;
1301: if ($target eq 'edit' ) {
1302: $result=&Apache::edit::tag_end($target,$token,
1303: 'End Randomly Parsed Block');
1304: }
1305: return $result;
1.6 tsai 1306: }
1307:
1.283 albertel 1308: sub ordered_show_check {
1309: my $last_part=$Apache::inputtags::partlist[-2];
1310: my $in_order=
1311: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1312: my $in_order_show=1;
1313: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1314: $in_order_show=&Apache::response::check_status($last_part);
1315: }
1316: return $in_order_show;
1317: }
1318:
1.11 albertel 1319: sub start_part {
1.326 albertel 1320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1321: if (!$Apache::lonxml::metamode) {
1322: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1323: # duedates.
1324: }
1.159 albertel 1325: my $result='';
1326: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1327: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1328: $Apache::inputtags::part=$id;
1.177 albertel 1329: push(@Apache::inputtags::partlist,$id);
1330: @Apache::inputtags::response=();
1.159 albertel 1331: @Apache::inputtags::previous=();
1332: @Apache::inputtags::previous_version=();
1.241 albertel 1333: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1334: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1335: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1336: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1337: my $in_order_show=&ordered_show_check();
1.214 albertel 1338: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1339: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1340: &Apache::run::run($expression,$safeeval);
1.159 albertel 1341:
1342: if ($target eq 'meta') {
1.224 www 1343: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1344: return &Apache::response::mandatory_part_meta.
1345: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1346: } elsif ($target eq 'web' || $target eq 'grade' ||
1347: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1348: if ($hidden || !$in_order_show) {
1.326 albertel 1349: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1350: } else {
1351: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1352: push (@Apache::inputtags::status,$status);
1353: my $expression='$external::datestatus="'.$status.'";';
1354: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1355: &Apache::run::run($expression,$safeeval);
1.284 albertel 1356: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1357: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1358: }
1.216 albertel 1359: if (( $status eq 'CLOSED' ) ||
1360: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1361: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1362: ( $status eq 'BANNED') ||
1363: ( $status eq 'UNAVAILABLE') ||
1364: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1365: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1366: $style);
1.159 albertel 1367: if ( $target eq "web" ) {
1.211 albertel 1368: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1369: } elsif ( $target eq 'tex' ) {
1.284 albertel 1370: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1371: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1372: } else {
1.211 albertel 1373: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1374: }
1.159 albertel 1375: }
1376: } else {
1377: if ($target eq 'tex') {
1.284 albertel 1378: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1379: if ($$tagstack[-2] eq 'td') {
1380: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1381: } else {
1382: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1383: }
1.195 sakharuk 1384: }
1.159 albertel 1385: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1386: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1387: my @allkeys = split /,/,$allkeys;
1388: my $allow_print_points = 0;
1389: foreach my $partial_key (@allkeys) {
1.230 albertel 1390: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1391: if ($1 ne '0') {$allow_print_points=1;}
1392: }
1393: }
1.275 albertel 1394: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1395: if (defined($maxtries) && $maxtries < 0) {
1396: $allow_print_points=0;
1397: }
1.302 albertel 1398: if (lc($env{'course.'.$env{'request.course.id'}.
1399: '.disableexampointprint'}) eq 'yes') {
1400: $allow_print_points=0;
1401: }
1.222 sakharuk 1402: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1403: } elsif ($target eq 'web') {
1.356 www 1404: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1405: }
1406: }
1407: }
1408: } elsif ($target eq 'edit') {
1409: $result.=&Apache::edit::tag_start($target,$token);
1410: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1411: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1412: ' '.
1413: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1414: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1415: } elsif ($target eq 'modified') {
1416: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1417: $safeeval,'id','display');
1.159 albertel 1418: if ($constructtag) {
1.225 albertel 1419: #limiting ids to only letters numbers, and space
1.224 www 1420: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1421: $result = &Apache::edit::rebuild_tag($token);
1422: $result.=&Apache::edit::handle_insert();
1423: }
1424: }
1425: return $result;
1.11 albertel 1426: }
1427:
1428: sub end_part {
1.159 albertel 1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1430: &Apache::lonxml::debug("in end_part $target ");
1431: my $status=$Apache::inputtags::status['-1'];
1432: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1433: my $in_order_show=&ordered_show_check();
1.321 albertel 1434: my $result;
1435: if (!$Apache::lonxml::metamode) {
1436: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1437: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1438: }
1.312 albertel 1439: if ($target eq 'grade') {
1.249 albertel 1440: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1441: !$hidden && $in_order_show) {
1.311 foxr 1442: $result.=&Apache::inputtags::grade;
1.249 albertel 1443: } else {
1444: # move any submission data to .hidden
1445: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1446: }
1.283 albertel 1447: } elsif (($target eq 'web' || $target eq 'tex') &&
1448: !$hidden && $in_order_show) {
1.159 albertel 1449: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1450: $target);
1.212 albertel 1451: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1452: $gradestatus='';
1453: }
1.311 foxr 1454: $result.=$gradestatus;
1.265 sakharuk 1455: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1456: } elsif ($target eq 'edit') {
1.311 foxr 1457: $result.=&Apache::edit::end_table();
1.322 albertel 1458: } elsif ($target eq 'modified') {
1459: $result .= $token->[2];
1460: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1461: }
1462: pop @Apache::inputtags::status;
1463: $Apache::inputtags::part='';
1.295 albertel 1464: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1465: return $result;
1.11 albertel 1466: }
1.1 albertel 1467:
1.25 albertel 1468: sub start_preduedate {
1.326 albertel 1469: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1470: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1471: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1472: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1473: if (!$Apache::lonhomework::scantronmode &&
1474: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1475: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1476: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1477: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1478: }
1.24 albertel 1479: }
1.159 albertel 1480: return '';
1.24 albertel 1481: }
1482:
1.25 albertel 1483: sub end_preduedate {
1.159 albertel 1484: return '';
1.24 albertel 1485: }
1486:
1.25 albertel 1487: sub start_postanswerdate {
1.326 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1489: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1490: if ($Apache::lonhomework::scantronmode ||
1491: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1492: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1493: }
1494: } elsif ($target eq 'tex') {
1.326 albertel 1495: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1496: }
1497: return '';
1.24 albertel 1498: }
1499:
1.25 albertel 1500: sub end_postanswerdate {
1.159 albertel 1501: return '';
1.24 albertel 1502: }
1503:
1.25 albertel 1504: sub start_notsolved {
1.326 albertel 1505: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1506: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1507: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1508: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1509: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1510: if ($gradestatus =~ /^correct/ &&
1511: &Apache::response::show_answer()) {
1.159 albertel 1512: &Apache::lonxml::debug("skipping");
1.326 albertel 1513: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1514: }
1.24 albertel 1515: }
1.159 albertel 1516: return '';
1.24 albertel 1517: }
1518:
1.25 albertel 1519: sub end_notsolved {
1.159 albertel 1520: return '';
1.24 albertel 1521: }
1522:
1523: sub start_solved {
1.326 albertel 1524: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1525: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1526: $target eq 'tex') {
1527: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1528: if ($gradestatus !~ /^correct/ ||
1529: !&Apache::response::show_answer()) {
1.326 albertel 1530: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1531: }
1.24 albertel 1532: }
1.159 albertel 1533: return '';
1.24 albertel 1534: }
1535:
1536: sub end_solved {
1.248 albertel 1537: return '';
1538: }
1539:
1540: sub start_problemtype {
1.326 albertel 1541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1542: my $result;
1.339 albertel 1543: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1544: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1545: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1546: if (!defined($mode)) { $mode='show'; }
1547: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1548: my $found=0;
1549: foreach my $type (split(',',$for)) {
1550: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1551: }
1552: if ($mode eq 'show' && !$found) {
1.326 albertel 1553: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1554: }
1555: if ($mode eq 'hide' && $found) {
1.326 albertel 1556: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1557: }
1558: } elsif ($target eq 'edit') {
1559: $result .=&Apache::edit::tag_start($target,$token);
1560: $result.=&Apache::edit::select_arg('Mode:','mode',
1561: [['show','Show'],
1562: ['hide','Hide']]
1563: ,$token);
1564: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1565: [ ['exam','Exam/Quiz Problem'],
1566: ['survey','Survey'],
1567: ['problem','Homework Problem'] ]
1568: ,$token);
1569: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1570: } elsif ($target eq 'modified') {
1571: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1572: $safeeval,'mode','for');
1573: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1574: }
1575: return $result;
1576: }
1577:
1578: sub end_problemtype {
1.159 albertel 1579: return '';
1.24 albertel 1580: }
1.34 albertel 1581:
1582: sub start_startouttext {
1.159 albertel 1583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1584: my @result=(''.'');
1585: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1586: return (@result);
1.34 albertel 1587: }
1.159 albertel 1588:
1.34 albertel 1589: sub end_startouttext {
1.326 albertel 1590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1591: my $result='';
1592: my $text='';
1593:
1594: if ($target eq 'edit') {
1.326 albertel 1595: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1596: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1597: <td>".&mt('Delete:').
1.159 albertel 1598: &Apache::edit::deletelist($target,$token)
1599: ."</td>
1.42 albertel 1600: <td>".
1.159 albertel 1601: &Apache::edit::insertlist($target,$token).
1602: &Apache::edit::end_row().
1603: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1604: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1605: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1606: }
1607: if ($target eq 'modified') {
1.219 albertel 1608: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1609: }
1610: if ($target eq 'tex') {
1611: $result .= '\noindent ';
1612: }
1613: return $result;
1.34 albertel 1614: }
1.159 albertel 1615:
1.34 albertel 1616: sub start_endouttext {
1.159 albertel 1617: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1618: my $result='';
1619: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1620: if ($target eq "modified") {
1621: $result='<endouttext />'.
1622: &Apache::edit::handle_insertafter('startouttext'); }
1623: return $result;
1.34 albertel 1624: }
1.159 albertel 1625:
1.34 albertel 1626: sub end_endouttext {
1.159 albertel 1627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1628: my @result=('','');
1629: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1630: return (@result);
1.34 albertel 1631: }
1.159 albertel 1632:
1.45 albertel 1633: sub delete_startouttext {
1.326 albertel 1634: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1635: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1636: my $text=$$parser['-1']->get_text("/endouttext");
1637: my $ntoken=$$parser['-1']->get_token();
1638: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1639: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1640: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1641: # they did the last time round
1642: &Apache::lonxml::increasedepth($ntoken);
1643: &Apache::lonxml::decreasedepth($ntoken);
1644: return 1;
1.193 www 1645: }
1646:
1647: sub start_simpleeditbutton {
1648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1649: my $result='';
1.284 albertel 1650: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1651: ($target eq 'web') &&
1.330 albertel 1652: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1653: my $url=$env{'request.noversionuri'};
1.193 www 1654: $url=~s/\?.*$//;
1.278 albertel 1655: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1656: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1657: '<a href="'.$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 1658: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1659: }
1660: return $result;
1661: }
1662:
1663: sub end_simpleeditbutton {
1664: return '';
1.45 albertel 1665: }
1.34 albertel 1666:
1.1 albertel 1667: 1;
1668: __END__
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