Annotation of loncom/homework/structuretags.pm, revision 1.372
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.372 ! albertel 4: # $Id: structuretags.pm,v 1.371 2006/12/07 23:11:55 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.248 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
50: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 51: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 52: return $bodytext;
1.159 albertel 53: }
54: return '';
1.10 albertel 55: }
56:
57: sub end_web {
1.44 ng 58: return '';
1.10 albertel 59: }
60:
61: sub start_tex {
1.326 albertel 62: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 63: my $result='';
1.326 albertel 64: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 65: if ($target eq 'tex') {
66: return $bodytext.' ';
1.159 albertel 67: }
1.198 sakharuk 68: return $result;;
1.10 albertel 69: }
70:
71: sub end_tex {
1.44 ng 72: return '';
1.9 albertel 73: }
74:
1.48 albertel 75: sub page_start {
1.345 albertel 76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
77: $extra_head)=@_;
1.159 albertel 78: my %found;
1.207 albertel 79: foreach my $taginside (@$tagstack) {
1.159 albertel 80: foreach my $taglookedfor ('html','body','form') {
81: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
82: }
83: }
84:
1.343 albertel 85: if ($target eq 'tex') {
86: return
87: &Apache::londefdef::start_html($target,$token,$tagstack,
88: $parstack,$parser,$safeeval);
89: }
90:
1.344 albertel 91: my %body_args;
92: if (defined($found{'html'})) {
93: $body_args{'skip_phases'}{'head'}=1;
94: } else {
1.343 albertel 95:
1.345 albertel 96: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 97:
1.336 albertel 98: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 99: if ($css_href =~ /\S/) {
100: &Apache::lonxml::extlink($css_href);
1.343 albertel 101: $extra_head .=
1.335 albertel 102: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
103: }
1.327 albertel 104: if ($target eq 'edit') {
1.343 albertel 105: $extra_head.=&Apache::edit::js_change_detection().
106: "<script type=\"text/javascript\">\n".
107: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
108: &Apache::loncommon::browser_and_searcher_javascript().
109: "\n</script>\n";
110: }
1.159 albertel 111: }
1.343 albertel 112:
1.344 albertel 113: if (defined($found{'body'})) {
114: $body_args{'skip_phases'}{'body'}=1;
115: } elsif (!defined($found{'body'})
116: && $env{'request.state'} eq 'construct') {
1.343 albertel 117: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 118: # no extra args to bodytag
1.297 albertel 119: }
1.272 albertel 120: } elsif (!defined($found{'body'})) {
1.343 albertel 121: my %add_entries;
1.159 albertel 122: my $background=&Apache::lonxml::get_param('background',$parstack,
123: $safeeval);
1.343 albertel 124: if ($background ne '' ) {
125: $add_entries{'background'} = $background;
126: }
1.344 albertel 127:
1.290 albertel 128: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
129: $safeeval);
1.344 albertel 130: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
131:
132: $body_args{'bgcolor'} = $bgcolor;
133: $body_args{'no_title'} = 1;
134: $body_args{'force_register'} = 1;
135: $body_args{'add_entries'} = \%add_entries;
136: }
1.365 albertel 137: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 138: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
139: \%body_args);
140:
141: if (!defined($found{'body'})
142: && $env{'request.state'} ne 'construct'
143: && ($target eq 'web' || $target eq 'webgrade')) {
144:
1.367 albertel 145: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 146: if ($symb eq '' && !$publicuser) {
147: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
148: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
149: $page_start .= $help;
1.159 albertel 150: }
1.344 albertel 151: }
152:
153: if (!defined($found{'body'})) {
1.343 albertel 154: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 155: }
1.344 albertel 156:
1.159 albertel 157: my $form_tag_start;
158: if (!defined($found{'form'})) {
1.337 albertel 159: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 160: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 161: $form_tag_start.=$uri.'" ';
162: if ($target eq 'edit') {
163: $form_tag_start.=&Apache::edit::form_change_detection();
164: }
1.368 albertel 165: $form_tag_start.='>'."\n";
1.355 albertel 166:
167: my $symb=&Apache::lonnet::symbread();
168: if ($symb =~ /\S/) {
169: $symb=
170: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
171: $form_tag_start.=
1.368 albertel 172: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 173: }
1.159 albertel 174: }
1.343 albertel 175: return ($page_start,$form_tag_start);
1.105 albertel 176: }
177:
1.141 matthew 178: #use Time::HiRes();
1.105 albertel 179: sub get_resource_name {
1.159 albertel 180: my ($parstack,$safeeval)=@_;
1.204 albertel 181: if (defined($Apache::lonhomework::name)) {
182: return $Apache::lonhomework::name;
183: }
1.367 albertel 184: my ($symb)=&Apache::lonnet::whichuser();
1.279 albertel 185: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 186: if ($name eq '') {
187: $name=&Apache::lonnet::EXT('resource.title');
188: if ($name eq 'con_lost') { $name = ''; }
189: }
1.204 albertel 190: if ($name!~/\S+/) {
1.284 albertel 191: $name=$env{'request.uri'};
1.205 albertel 192: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 193: }
1.159 albertel 194: $Apache::lonhomework::name=$name;
195: return $name;
1.105 albertel 196: }
197:
198: sub setup_rndseed {
1.159 albertel 199: my ($safeeval)=@_;
200: my $rndseed;
1.367 albertel 201: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 202: if ($env{'request.state'} eq "construct"
203: || $symb eq ''
204: || $Apache::lonhomework::type eq 'practice'
205: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 206: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 207: ['rndseed']);
1.284 albertel 208: $rndseed=$env{'form.rndseed'};
1.159 albertel 209: if (!$rndseed) {
1.162 albertel 210: $rndseed=$Apache::lonhomework::history{'rndseed'};
211: if (!$rndseed) {
212: $rndseed=time;
213: }
1.284 albertel 214: $env{'form.rndseed'}=$rndseed;
1.162 albertel 215: }
1.284 albertel 216: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
217: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 218: srand(time);
219: $rndseed=int(rand(2100000000));
1.284 albertel 220: $env{'form.rndseed'}=$rndseed;
221: delete($env{'form.resetdata'});
222: delete($env{'form.newrandomization'});
1.159 albertel 223: }
1.187 albertel 224: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 225: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 226: }
1.247 albertel 227: if ($Apache::lonhomework::history{'resource.CODE'}) {
228: $rndseed=&Apache::lonnet::rndseed();
229: }
1.221 albertel 230: if ($safeeval) {
231: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 232: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 233: }
1.159 albertel 234: }
235: return $rndseed;
1.105 albertel 236: }
237:
1.268 albertel 238: sub remember_problem_state {
239: return '
1.284 albertel 240: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
241: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
242: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 243: }
244:
1.105 albertel 245: sub problem_edit_header {
1.268 albertel 246: return '<input type="hidden" name="submitted" value="edit" />'.
247: &Apache::structuretags::remember_problem_state().'
1.210 albertel 248: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 249: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 250: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 251: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
252: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
253: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 254: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 255: .'</td></tr></table>'.
1.282 albertel 256: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 257: }
258:
259: sub problem_edit_footer {
1.210 albertel 260: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 261: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 262: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 263: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 264: }
265:
1.235 albertel 266: sub option {
267: my ($value,$name) = @_;
268: my $result ="<option value='".$value."' ";
1.284 albertel 269: if ($env{'form.'.$name} eq $value) {
1.235 albertel 270: $result.=" selected='on' ";
271: }
272: $result.='>';
273: return $result;
274: }
275:
1.105 albertel 276: sub problem_web_to_edit_header {
1.159 albertel 277: my ($rndseed)=@_;
1.313 albertel 278: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
279: if (!$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"'; }
1.371 albertel 296: $result.= ' />'.$show_all_foils_text.'</label>'.
1.228 www 297: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 298: '<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) =
1.367 albertel 349: &Apache::lonnet::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,$name) =
1.367 albertel 395: &Apache::lonnet::whichuser($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);
1.204 albertel 531: }
532:
533: sub reset_problem_globals {
534: my ($type)=@_;
535: undef(%Apache::lonhomework::history);
536: undef(%Apache::lonhomework::results);
537: undef($Apache::inputtags::part);
1.208 albertel 538: #don't undef this, lonhomework.pm takes care of this, we use this to
539: #detect if we try to do 2 problems in one file
540: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 541: undef($Apache::lonhomework::name);
1.358 albertel 542: undef($Apache::lonhomework::default_type);
543: undef($Apache::lonhomework::type);
544: undef($Apache::lonhomework::scantronmode);
545: undef($Apache::lonhomework::problemstatus);
546: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 547: }
548:
1.241 albertel 549: sub set_problem_state {
1.240 albertel 550: my ($part)=@_;
1.284 albertel 551: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 552: $Apache::lonhomework::history{"resource.$part.solved"}=
553: 'correct_by_student';
554: }
555: }
556:
1.241 albertel 557: sub get_problem_status {
558: my ($part)=@_;
1.267 albertel 559: my $problem_status;
1.284 albertel 560: if ($env{'request.state'} eq 'construct' &&
561: defined($env{'form.problemstatus'})) {
562: $problem_status=$env{'form.problemstatus'};
1.267 albertel 563: } else {
564: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
565: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 566: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 567: }
568: return $problem_status;
569: }
570:
1.9 albertel 571: sub start_problem {
1.326 albertel 572: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 573:
1.311 foxr 574: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 575: if (!$Apache::lonxml::metamode) {
576: &Apache::lonxml::startredirection();
577: }
1.311 foxr 578:
1.308 foxr 579: # Problems don't nest and we don't allow more than one <problem> in
580: # a .problem file.
581: #
1.184 albertel 582: if ( $Apache::inputtags::part ne '' ||
583: $Apache::lonhomework::parsing_a_problem) {
584: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 585: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 586: return '';
587: }
1.184 albertel 588:
589: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 590: &init_problem_globals('problem');
1.166 albertel 591:
1.284 albertel 592: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 593: $Apache::lonhomework::scantronmode=1;
594: }
1.161 albertel 595:
1.159 albertel 596: if ($target ne 'analyze') {
1.284 albertel 597: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 598: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 599: if (($env{'request.state'} eq 'construct') &&
600: defined($env{'form.problemtype'})) {
601: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 602: }
1.332 albertel 603: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 604: }
1.164 albertel 605: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 606: my $uri=$env{'request.uri'};
1.159 albertel 607: if ($uri=~/\.(\w+)$/) {
608: $Apache::lonhomework::type=$1;
609: &Apache::lonxml::debug("Using type of $1");
610: } else {
611: $Apache::lonhomework::type='problem';
612: &Apache::lonxml::debug("Using default type, problem, :$uri:");
613: }
1.87 albertel 614: }
1.301 albertel 615: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 616:
1.363 albertel 617: &initialize_storage();
1.366 albertel 618: if ($target eq 'web') {
619: &Apache::lonxml::debug(" grading history ");
620: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
621: }
1.363 albertel 622:
1.159 albertel 623: #added vars to the scripting enviroment
1.213 albertel 624: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 625: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 626: &Apache::run::run($expression,$safeeval);
1.159 albertel 627: my $status;
628: my $accessmsg;
629:
1.343 albertel 630: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 631: my ($result,$form_tag_start);
1.354 albertel 632: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
633: || $target eq 'edit') {
1.350 albertel 634: ($result,$form_tag_start) =
635: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
636: $name);
637: }
638:
1.284 albertel 639: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 640:
641: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
642: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
643: $target eq 'tex') {
644: #handle exam checkout
645: if ($Apache::lonhomework::type eq 'exam') {
646: my $token=
647: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 648: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 649: $token=&Apache::lonxml::maketoken();
650: $Apache::lonhomework::history{"resource.0.outtoken"}=
651: $token;
652: }
1.343 albertel 653: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 654: }
1.284 albertel 655: if ($env{'form.markaccess'}) {
1.252 albertel 656: &Apache::lonnet::set_first_access('map');
657: }
1.159 albertel 658: #handle rand seed in construction space
659: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 660: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 661: if ($env{'request.state'} ne "construct" &&
662: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 663: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
664: $rndseed.'" />'.
665: '<input type="submit" name="resetdata"
1.334 albertel 666: value="'.&mt('New Problem Variation').'" />';
667: if (exists($env{'form.username'})) {
668: $form_tag_start.=
1.164 albertel 669: '<input type="hidden" name="username"
1.284 albertel 670: value="'.$env{'form.username'}.'" />';
1.334 albertel 671: }
1.333 albertel 672: if ($env{'request.role.adv'}) {
1.267 albertel 673: $form_tag_start.=
1.300 albertel 674: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 675: if (defined($env{'form.showallfoils'})) {
1.267 albertel 676: $form_tag_start.='checked="on"';
677: }
1.300 albertel 678: $form_tag_start.= ' />'.&mt(' Show All Foils').
679: '</label>';
1.267 albertel 680: }
681: $form_tag_start.='<hr />';
1.162 albertel 682: }
1.324 albertel 683:
684: ($status,$accessmsg,my $slot_name,my $slot) =
685: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 686: push (@Apache::inputtags::status,$status);
1.324 albertel 687:
1.159 albertel 688: my $expression='$external::datestatus="'.$status.'";';
689: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
690: &Apache::run::run($expression,$safeeval);
691: &Apache::lonxml::debug("Got $status");
1.324 albertel 692:
1.159 albertel 693: if (( $status eq 'CLOSED' ) ||
694: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 695: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 696: ( $status eq 'BANNED') ||
1.216 albertel 697: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 698: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 699: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 700: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
701: $style);
1.159 albertel 702: if ( $target eq "web" ) {
1.343 albertel 703: my $msg;
1.159 albertel 704: if ($status eq 'UNAVAILABLE') {
1.245 albertel 705: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 706: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 707: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 708: }
1.216 albertel 709: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 710: $msg.='The problem '.$accessmsg;
711: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 712: $msg.=&checkout_msg();
1.252 albertel 713: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 714: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 715: } elsif ($status eq 'NOT_IN_A_SLOT') {
716: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 717: }
718: $result.=$msg.'<br />';
719: } elsif ($target eq 'tex') {
1.332 albertel 720: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
721: : '\begin{minipage}{\textwidth}';
722: $result.='\begin{document}\noindent \vskip 1 mm '.
723: $startminipage.'\vskip 0 mm';
1.159 albertel 724: if ($status eq 'UNAVAILABLE') {
1.211 albertel 725: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 726: } else {
1.211 albertel 727: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 728: }
729: }
1.324 albertel 730: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 731: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
732: $style);
1.324 albertel 733: if ($target eq 'web') {
734: $result .= &Apache::bridgetask::proctor_validation_screen();
735: } elsif ($target eq 'grade') {
736: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
737: 'problem');
738: }
1.159 albertel 739: } elsif ($target eq 'web') {
1.360 albertel 740: if ($status eq 'CAN_ANSWER'
741: && $slot_name ne ''
742: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
743: # unproctored slot access, self checkin
744: &Apache::bridgetask::check_in('problem',undef,undef,
745: $slot_name);
746: }
1.368 albertel 747: $result.="\n $form_tag_start \t".
1.227 albertel 748: '<input type="hidden" name="submitted" value="yes" />';
749: # create a page header and exit
1.284 albertel 750: if ($env{'request.state'} eq "construct") {
751: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 752: }
753: # if we are viewing someone else preserve that info
1.284 albertel 754: if (defined $env{'form.grade_symb'}) {
1.227 albertel 755: foreach my $field ('symb','courseid','domain','username') {
756: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 757: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 758: }
759: }
760: } elsif ($target eq 'tex') {
1.319 foxr 761: $result .= 'INSERTTEXFRONTMATTERHERE';
762:
1.99 sakharuk 763: }
1.159 albertel 764: } elsif ($target eq 'edit') {
1.343 albertel 765: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 766: $Apache::lonxml::warnings_error_header=
767: &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 768: my $temp=&Apache::edit::insertlist($target,$token);
769: $result.=$temp;
770: } elsif ($target eq 'modified') {
771: $result=$token->[4];
772: $result.=&Apache::edit::handle_insert();
773: } else {
774: # page_start returned a starting result, delete it if we don't need it
775: $result = '';
1.99 sakharuk 776: }
1.159 albertel 777: return $result;
1.9 albertel 778: }
779:
780: sub end_problem {
1.159 albertel 781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 782: my $result;
1.310 foxr 783:
1.321 albertel 784: if (!$Apache::lonxml::metamode) {
785: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 786: $Apache::lonxml::post_evaluate=0;
1.321 albertel 787: }
1.319 foxr 788:
789: if ($target eq 'tex') {
1.321 albertel 790:
791: # Figure out the front matter and replace the
792: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
793: # this in end_problem because whether or not we display due
794: # dates depends on whether due dates have already been
795: # displayed in the problem parts.
796:
1.319 foxr 797: my $frontmatter = '';
798: my $startminipage = '';
799: if (not $env{'form.problem_split'}=~/yes/) {
800: $startminipage = '\begin{minipage}{\textwidth}';
801: }
802: my $id = $Apache::inputtags::part;
803: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
804: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
805: my @packages = split /,/,$packages;
806: my $allow_print_points = 0;
807: foreach my $partial_key (@packages) {
808: if ($partial_key=~m/^part_0$/) {
809: $allow_print_points=1;
810: }
811: }
812: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
813: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
814: if (lc($env{'course.'.$env{'request.course.id'}.
815: '.disableexampointprint'}) eq 'yes') {
816: $allow_print_points=0;
817: }
818: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
819: 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 ';
820: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
821: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
822:
823: # Figure out what the due date is and if we need to print
824: # it in the problem header. We have been logging the
825: # last due date written to file.
826:
827: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
828: my $duedate = POSIX::strftime("%c",localtime($duetime));
829: my $temp_file;
830: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
831:
832: # Figure out what the last printed due date is or set it
833: # to the epoch if no duedates have been printed.
834:
835: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
836: if (-e $filename) {
837: $temp_file = Apache::File->new($filename);
838: my @due_file = <$temp_file>;
839: $due_file_content = $due_file[$#due_file];
840: chomp $due_file_content;
841: }
842:
843: # We display the due date iff it is not the same as the last
844: # duedate in problem header ($due_file_content), and
845: # none of our parts displayed a duedate.
846: #
847: my $parts_with_displayduedate;
848: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
849: $parts_with_displayduedate =
850: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
851: } else {
852: $parts_with_displayduedate = 0;
853: }
854: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
855: $temp_file = Apache::File->new('>'.$filename);
856: print $temp_file "$duetime\n";
857: if (not $env{'request.symb'} =~ m/\.page_/) {
858: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
859: $frontmatter .= $begin_doc.
860: '\textit{Due date: '.$duedate.'} '.$toc_line;
861: } else {
862: $frontmatter.= $begin_doc.$toc_line;
863: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
864: }
865: } else {
866: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
867: }
868: } else {
869: if (not $env{'request.symb'} =~ m/\.page_/) {
870: $frontmatter .= $begin_doc.$toc_line;
871: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
872: } else {
873: $frontmatter .= '\vskip 1mm \\\\\\\\';
874: }
875: }
876: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
877: }
878:
1.159 albertel 879: my $status=$Apache::inputtags::status['-1'];
880: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
881: $target eq 'tex') {
1.249 albertel 882: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 883: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 884: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
885: &Apache::inputtags::grade;
1.324 albertel 886: } elsif ($status eq 'NEEDS_CHECKIN') {
887: # no need to grade, and don't want to hide data
1.249 albertel 888: } else {
889: # move any submission data to .hidden
890: &Apache::inputtags::hidealldata($Apache::inputtags::part);
891: }
1.159 albertel 892: } elsif ( ($target eq 'web' || $target eq 'tex') &&
893: $Apache::inputtags::part eq '0' &&
1.252 albertel 894: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 895: # if part is zero, no <part>s existed, so we need show the current
896: # grading status
897: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
898: $result.= $gradestatus;
899: }
900: if (
1.284 albertel 901: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 902: ($target eq 'answer') || ($target eq 'tex')
903: ) {
1.227 albertel 904: if ($target ne 'tex' &&
1.284 albertel 905: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 906: $result.="</form>";
1.348 albertel 907: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 908: }
909: if ($target eq 'web') {
1.346 albertel 910: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 911: } elsif ($target eq 'tex') {
1.178 sakharuk 912: my $endminipage = '';
1.284 albertel 913: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 914: $endminipage = '\end{minipage}';
915: }
1.284 albertel 916: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 917: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 918: } else {
1.262 sakharuk 919: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 920: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 921: $result .= $endminipage.'\end{document} ';
922: } else {
923: $result .= '';
924: }
1.159 albertel 925: }
926: }
927: }
928: if ($target eq 'grade') {
929: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
930: &finalize_storage();
931: }
1.284 albertel 932: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
933: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 934: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 935: # normally we get it from above, but in CSTR
1.172 albertel 936: # we always show answer mode too.
1.159 albertel 937: }
938: } elsif ($target eq 'meta') {
939: if ($Apache::inputtags::part eq '0') {
1.179 albertel 940: @Apache::inputtags::response=();
1.159 albertel 941: $result=&Apache::response::mandatory_part_meta;
942: }
1.215 albertel 943: $result.=&Apache::response::meta_part_order();
1.258 albertel 944: $result.=&Apache::response::meta_response_order();
1.159 albertel 945: } elsif ($target eq 'edit') {
946: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 947: $result .= &problem_edit_footer();
1.320 albertel 948: } elsif ($target eq 'modified') {
949: $result .= $token->[2];
950: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 951: }
1.155 albertel 952:
1.284 albertel 953: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 954: &Apache::inputtags::check_for_duplicate_ids();
955: }
1.204 albertel 956:
957: &reset_problem_globals('problem');
1.159 albertel 958:
959: return $result;
1.48 albertel 960: }
961:
1.108 albertel 962:
1.48 albertel 963: sub start_library {
1.159 albertel 964: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 965: my ($result,$form_tag_start);
1.371 albertel 966: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 967: &init_problem_globals('library');
968: $Apache::lonhomework::type='problem';
969: }
1.159 albertel 970: if ($target eq 'edit') {
1.343 albertel 971: ($result,$form_tag_start)=
972: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
973: 'Edit');
974: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 975: my $temp=&Apache::edit::insertlist($target,$token);
976: $result.=$temp;
977: } elsif ($target eq 'modified') {
978: $result=$token->[4];
979: $result.=&Apache::edit::handle_insert();
1.340 albertel 980: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 981: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 982: && $env{'request.state'} eq "construct" ) {
1.159 albertel 983: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 984: ($result,$form_tag_start)=
985: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
986: $name);
1.159 albertel 987: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 988: $result.=" \n $form_tag_start".
1.159 albertel 989: '<input type="hidden" name="submitted" value="yes" />';
990: $result.=&problem_web_to_edit_header($rndseed);
991: }
992: return $result;
1.48 albertel 993: }
994:
995: sub end_library {
1.159 albertel 996: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
997: my $result='';
998: if ($target eq 'edit') {
999: $result=&problem_edit_footer();
1.371 albertel 1000: } elsif ($target eq 'web'
1001: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1002: && $env{'request.state'} eq "construct") {
1.349 albertel 1003: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1004: }
1.371 albertel 1005: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1006: &reset_problem_globals('library');
1007: }
1.159 albertel 1008: return $result;
1.197 www 1009: }
1010:
1011: sub start_definetag {
1.326 albertel 1012: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1013:
1014: my $result;
1015:
1016: my $name = $token->[2]->{'name'};
1.326 albertel 1017: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1018: if ($name=~/^\//) {
1019: $result=
1020: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1021: } else {
1022: $result=
1023: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1024: }
1025: $skip=~s/\</\<\;/gs;
1026: $skip=~s/\>/\>\;/gs;
1027: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1028: return $result;
1029: }
1030:
1031: sub end_definetag {
1032: return '';
1.1 albertel 1033: }
1034:
1035: sub start_block {
1.201 albertel 1036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1037:
1038: my $result;
1.1 albertel 1039:
1.339 albertel 1040: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1041: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1042: my $code = $token->[2]->{'condition'};
1.201 albertel 1043: if (defined($code)) {
1.137 albertel 1044: if (!$Apache::lonxml::default_homework_loaded) {
1045: &Apache::lonxml::default_homework_load($safeeval);
1046: }
1.131 albertel 1047: $result = &Apache::run::run($code,$safeeval);
1048: &Apache::lonxml::debug("block :$code: returned :$result:");
1049: } else {
1050: $result='1';
1051: }
1052: if ( ! $result ) {
1.201 albertel 1053: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1054: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1055: }
1056: $result='';
1057: } elsif ($target eq 'edit') {
1058: $result .=&Apache::edit::tag_start($target,$token);
1059: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1060: $token,40);
1061: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1062: } elsif ($target eq 'modified') {
1063: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1064: $safeeval,'condition');
1065: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1066: }
1.131 albertel 1067: return $result;
1.1 albertel 1068: }
1069:
1070: sub end_block {
1.167 www 1071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1072: my $result;
1073: if ($target eq "edit") {
1074: $result.= &Apache::edit::tag_end($target,$token,'');
1075: }
1076: return $result;
1077: }
1078:
1079: sub start_languageblock {
1.201 albertel 1080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1081:
1082: my $result;
1083:
1.339 albertel 1084: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1085: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1086: my $include = $token->[2]->{'include'};
1087: my $exclude = $token->[2]->{'exclude'};
1088: my %languages=&Apache::loncommon::display_languages();
1089: $result='1';
1090: if ($include) {
1091: $result='';
1092: foreach (split(/\,/,$include)) {
1093: if ($languages{$_}) { $result='1'; }
1094: }
1095: }
1096: if ($exclude) {
1097: foreach (split(/\,/,$exclude)) {
1098: if ($languages{$_}) { $result='0'; }
1099: }
1100: }
1101: if ( ! $result ) {
1102: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1103: $style);
1104: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1105: }
1106: $result='';
1.167 www 1107: } elsif ($target eq 'edit') {
1108: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1109: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1110: $token,40);
1.211 albertel 1111: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1112: $token,40);
1113: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1114: } elsif ($target eq 'modified') {
1115: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1116: $safeeval,'include',
1117: 'exclude');
1.167 www 1118: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1119: }
1120: return $result;
1121: }
1122:
1123: sub end_languageblock {
1.170 www 1124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1125: my $result;
1.201 albertel 1126: if ($target eq "edit") {
1.170 www 1127: $result.= &Apache::edit::tag_end($target,$token,'');
1128: }
1129: return $result;
1130: }
1131:
1132: sub start_instructorcomment {
1.201 albertel 1133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1134:
1135: my $result;
1136:
1.339 albertel 1137: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1138: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1139: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1140: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1141: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1142: $parser,$style);
1.170 www 1143: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1144: }
1145: $result='';
1146: } elsif ($target eq 'edit') {
1147: $result .=&Apache::edit::tag_start($target,$token);
1148: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1149: }
1150: return $result;
1151: }
1152:
1153: sub end_instructorcomment {
1.159 albertel 1154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1155: my $result;
1156: if ($target eq "edit") {
1157: $result.= &Apache::edit::tag_end($target,$token,'');
1158: }
1159: return $result;
1.4 tsai 1160: }
1161:
1162: sub start_while {
1.326 albertel 1163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1164:
1.160 albertel 1165: my $result;
1.339 albertel 1166: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1167: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1168: my $code = $token->[2]->{'condition'};
1.4 tsai 1169:
1.160 albertel 1170: push( @Apache::structuretags::whileconds, $code);
1171: if (!$Apache::lonxml::default_homework_loaded) {
1172: &Apache::lonxml::default_homework_load($safeeval);
1173: }
1174: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1175: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1176: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1177: push( @Apache::structuretags::whileline, $token->[5]);
1178: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1179: if ( $result ) {
1180: &Apache::lonxml::newparser($parser,\$bodytext);
1181: }
1182: } elsif ($target eq 'edit') {
1183: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1184: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1185: $token,40);
1186: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1187: } elsif ($target eq 'modified') {
1188: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1189: $safeeval,'condition');
1190: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1191: }
1.160 albertel 1192: return $result;
1.4 tsai 1193: }
1194:
1195: sub end_while {
1.159 albertel 1196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1197: my $result;
1198:
1.339 albertel 1199: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1200: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1201: my $code = pop(@Apache::structuretags::whileconds);
1202: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1203: my $line = pop(@Apache::structuretags::whileline);
1204: my $return = &Apache::run::run($code,$safeeval);
1205: my $starttime=time;
1206: my $error=0;
1207: while ($return) {
1208: if (time-$starttime >
1209: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1210: #$return = 0; $error=1; next;
1.161 albertel 1211: }
1212: $result.=&Apache::scripttag::xmlparse($bodytext);
1213: $return = &Apache::run::run($code,$safeeval);
1214: }
1215: if ($error) {
1.270 albertel 1216: &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 1217: }
1218: } elsif ($target eq "edit") {
1219: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1220: }
1.160 albertel 1221: return $result;
1.1 albertel 1222: }
1.6 tsai 1223:
1.160 albertel 1224: # <randomlist show="1">
1.6 tsai 1225: # <tag1>..</tag1>
1226: # <tag2>..</tag2>
1227: # <tag3>..</tag3>
1.160 albertel 1228: # ...
1.6 tsai 1229: # </randomlist>
1230: sub start_randomlist {
1.326 albertel 1231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1232: my $result;
1.339 albertel 1233: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1234: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1235: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1236: my $b_parser= HTML::LCParser->new(\$body);
1237: $b_parser->xml_mode(1);
1238: $b_parser->marked_sections(1);
1.159 albertel 1239: my $b_tok;
1240: my @randomlist;
1241: my $list_item;
1242: while($b_tok = $b_parser->get_token() ) {
1243: if($b_tok->[0] eq 'S') { # start tag
1244: # get content of the tag until matching end tag
1245: # get all text upto the matching tag
1246: # and push the content into @randomlist
1247: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1248: $b_parser);
1249: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1250: push(@randomlist,$list_item);
1251: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1252: # $list_item</b>";
1253: }
1254: if($b_tok->[0] eq 'T') { # text
1255: # what to do with text in between tags?
1256: # print "<b>TEXT $b_tok->[1]</b><br />";
1257: }
1258: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1259: # print "<b>END-TAG $b_tok->[1]</b><br />";
1260: # }
1261: }
1.303 albertel 1262: if (@randomlist) {
1263: my @idx_arr = (0 .. $#randomlist);
1264: &Apache::structuretags::shuffle(\@idx_arr);
1265: my $bodytext = '';
1266: my $show=$#randomlist;
1267: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1268: $showarg--;
1269: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1270: for(0 .. $show) {
1271: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1272: }
1273: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1274: }
1275: } elsif ($target eq 'edit' ) {
1276: $result .=&Apache::edit::tag_start($target,$token);
1277: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1278: $token,5);
1279: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1280: } elsif ($target eq 'modified' ) {
1281: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1282: $safeeval,'show');
1283: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1284: }
1285: return $result;
1.7 tsai 1286: }
1287:
1288: sub shuffle {
1289: my $a=shift;
1290: my $i;
1.303 albertel 1291: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1292: &Apache::response::pushrandomnumber();
1.159 albertel 1293: for($i=@$a;--$i;) {
1294: my $j=int(&Math::Random::random_uniform() * ($i+1));
1295: next if $i == $j;
1296: @$a[$i,$j] = @$a[$j,$i];
1297: }
1.251 albertel 1298: &Apache::response::poprandomnumber();
1.7 tsai 1299: }
1.6 tsai 1300: }
1301:
1302: sub end_randomlist {
1.159 albertel 1303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1304: my $result;
1305: if ($target eq 'edit' ) {
1306: $result=&Apache::edit::tag_end($target,$token,
1307: 'End Randomly Parsed Block');
1308: }
1309: return $result;
1.6 tsai 1310: }
1311:
1.283 albertel 1312: sub ordered_show_check {
1313: my $last_part=$Apache::inputtags::partlist[-2];
1314: my $in_order=
1315: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1316: my $in_order_show=1;
1317: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1318: $in_order_show=&Apache::response::check_status($last_part);
1319: }
1320: return $in_order_show;
1321: }
1322:
1.11 albertel 1323: sub start_part {
1.326 albertel 1324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1325: if (!$Apache::lonxml::metamode) {
1326: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1327: # duedates.
1328: }
1.159 albertel 1329: my $result='';
1330: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1331: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1332: $Apache::inputtags::part=$id;
1.177 albertel 1333: push(@Apache::inputtags::partlist,$id);
1334: @Apache::inputtags::response=();
1.159 albertel 1335: @Apache::inputtags::previous=();
1336: @Apache::inputtags::previous_version=();
1.241 albertel 1337: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1338: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1339: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1340: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1341: my $in_order_show=&ordered_show_check();
1.214 albertel 1342: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1343: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1344: &Apache::run::run($expression,$safeeval);
1.159 albertel 1345:
1346: if ($target eq 'meta') {
1.224 www 1347: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1348: return &Apache::response::mandatory_part_meta.
1349: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1350: } elsif ($target eq 'web' || $target eq 'grade' ||
1351: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1352: if ($hidden || !$in_order_show) {
1.326 albertel 1353: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1354: } else {
1355: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1356: push (@Apache::inputtags::status,$status);
1357: my $expression='$external::datestatus="'.$status.'";';
1358: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1359: &Apache::run::run($expression,$safeeval);
1.284 albertel 1360: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1361: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1362: }
1.216 albertel 1363: if (( $status eq 'CLOSED' ) ||
1364: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1365: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1366: ( $status eq 'BANNED') ||
1367: ( $status eq 'UNAVAILABLE') ||
1368: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1369: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1370: $style);
1.159 albertel 1371: if ( $target eq "web" ) {
1.211 albertel 1372: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1373: } elsif ( $target eq 'tex' ) {
1.284 albertel 1374: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1375: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1376: } else {
1.211 albertel 1377: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1378: }
1.159 albertel 1379: }
1380: } else {
1381: if ($target eq 'tex') {
1.284 albertel 1382: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1383: if ($$tagstack[-2] eq 'td') {
1384: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1385: } else {
1386: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1387: }
1.195 sakharuk 1388: }
1.159 albertel 1389: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1390: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1391: my @allkeys = split /,/,$allkeys;
1392: my $allow_print_points = 0;
1393: foreach my $partial_key (@allkeys) {
1.230 albertel 1394: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1395: if ($1 ne '0') {$allow_print_points=1;}
1396: }
1397: }
1.275 albertel 1398: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1399: if (defined($maxtries) && $maxtries < 0) {
1400: $allow_print_points=0;
1401: }
1.302 albertel 1402: if (lc($env{'course.'.$env{'request.course.id'}.
1403: '.disableexampointprint'}) eq 'yes') {
1404: $allow_print_points=0;
1405: }
1.222 sakharuk 1406: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1407: } elsif ($target eq 'web') {
1.356 www 1408: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1409: }
1410: }
1411: }
1412: } elsif ($target eq 'edit') {
1413: $result.=&Apache::edit::tag_start($target,$token);
1414: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1415: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1416: ' '.
1417: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1418: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1419: } elsif ($target eq 'modified') {
1420: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1421: $safeeval,'id','display');
1.159 albertel 1422: if ($constructtag) {
1.225 albertel 1423: #limiting ids to only letters numbers, and space
1.224 www 1424: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1425: $result = &Apache::edit::rebuild_tag($token);
1426: $result.=&Apache::edit::handle_insert();
1427: }
1428: }
1429: return $result;
1.11 albertel 1430: }
1431:
1432: sub end_part {
1.159 albertel 1433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1434: &Apache::lonxml::debug("in end_part $target ");
1435: my $status=$Apache::inputtags::status['-1'];
1436: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1437: my $in_order_show=&ordered_show_check();
1.321 albertel 1438: my $result;
1439: if (!$Apache::lonxml::metamode) {
1440: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1441: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1442: }
1.312 albertel 1443: if ($target eq 'grade') {
1.249 albertel 1444: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1445: !$hidden && $in_order_show) {
1.311 foxr 1446: $result.=&Apache::inputtags::grade;
1.249 albertel 1447: } else {
1448: # move any submission data to .hidden
1449: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1450: }
1.283 albertel 1451: } elsif (($target eq 'web' || $target eq 'tex') &&
1452: !$hidden && $in_order_show) {
1.159 albertel 1453: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1454: $target);
1.212 albertel 1455: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1456: $gradestatus='';
1457: }
1.311 foxr 1458: $result.=$gradestatus;
1.265 sakharuk 1459: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1460: } elsif ($target eq 'edit') {
1.311 foxr 1461: $result.=&Apache::edit::end_table();
1.322 albertel 1462: } elsif ($target eq 'modified') {
1463: $result .= $token->[2];
1464: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1465: }
1466: pop @Apache::inputtags::status;
1467: $Apache::inputtags::part='';
1.295 albertel 1468: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1469: return $result;
1.11 albertel 1470: }
1.1 albertel 1471:
1.25 albertel 1472: sub start_preduedate {
1.326 albertel 1473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1474: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1475: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1476: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1477: if (!$Apache::lonhomework::scantronmode &&
1478: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1479: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1480: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1481: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1482: }
1.24 albertel 1483: }
1.159 albertel 1484: return '';
1.24 albertel 1485: }
1486:
1.25 albertel 1487: sub end_preduedate {
1.159 albertel 1488: return '';
1.24 albertel 1489: }
1490:
1.369 foxr 1491: # In all the modes where <postanswerdate> text is
1492: # displayable, all we do is eat up the text between the start/stop
1493: # tags if the conditions are not right to display it.
1.25 albertel 1494: sub start_postanswerdate {
1.326 albertel 1495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1496: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1497: &Apache::lonnet::allowed('pav',
1498: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1499: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1500: $target eq 'tex' ) {
1.300 albertel 1501: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1502: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1503: (($target eq 'tex') && !$pav)) {
1.326 albertel 1504: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1505: }
1506: }
1507: return '';
1.24 albertel 1508: }
1509:
1.25 albertel 1510: sub end_postanswerdate {
1.159 albertel 1511: return '';
1.24 albertel 1512: }
1513:
1.25 albertel 1514: sub start_notsolved {
1.326 albertel 1515: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1516: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1517: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1518: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1519: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1520: if ($gradestatus =~ /^correct/ &&
1521: &Apache::response::show_answer()) {
1.159 albertel 1522: &Apache::lonxml::debug("skipping");
1.326 albertel 1523: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1524: }
1.24 albertel 1525: }
1.159 albertel 1526: return '';
1.24 albertel 1527: }
1528:
1.25 albertel 1529: sub end_notsolved {
1.159 albertel 1530: return '';
1.24 albertel 1531: }
1532:
1533: sub start_solved {
1.326 albertel 1534: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1535: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1536: $target eq 'tex') {
1537: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1538: if ($gradestatus !~ /^correct/ ||
1539: !&Apache::response::show_answer()) {
1.326 albertel 1540: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1541: }
1.24 albertel 1542: }
1.159 albertel 1543: return '';
1.24 albertel 1544: }
1545:
1546: sub end_solved {
1.248 albertel 1547: return '';
1548: }
1549:
1550: sub start_problemtype {
1.326 albertel 1551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1552: my $result;
1.339 albertel 1553: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1554: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1555: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1556: if (!defined($mode)) { $mode='show'; }
1557: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1558: my $found=0;
1559: foreach my $type (split(',',$for)) {
1560: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1561: }
1562: if ($mode eq 'show' && !$found) {
1.326 albertel 1563: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1564: }
1565: if ($mode eq 'hide' && $found) {
1.326 albertel 1566: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1567: }
1568: } elsif ($target eq 'edit') {
1569: $result .=&Apache::edit::tag_start($target,$token);
1570: $result.=&Apache::edit::select_arg('Mode:','mode',
1571: [['show','Show'],
1572: ['hide','Hide']]
1573: ,$token);
1574: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1575: [ ['exam','Exam/Quiz Problem'],
1576: ['survey','Survey'],
1577: ['problem','Homework Problem'] ]
1578: ,$token);
1579: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1580: } elsif ($target eq 'modified') {
1581: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1582: $safeeval,'mode','for');
1583: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1584: }
1585: return $result;
1586: }
1587:
1588: sub end_problemtype {
1.159 albertel 1589: return '';
1.24 albertel 1590: }
1.34 albertel 1591:
1592: sub start_startouttext {
1.159 albertel 1593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1594: my @result=(''.'');
1595: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1596: return (@result);
1.34 albertel 1597: }
1.159 albertel 1598:
1.34 albertel 1599: sub end_startouttext {
1.326 albertel 1600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1601: my $result='';
1602: my $text='';
1603:
1604: if ($target eq 'edit') {
1.326 albertel 1605: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1606: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1607: <td>".&mt('Delete:').
1.159 albertel 1608: &Apache::edit::deletelist($target,$token)
1609: ."</td>
1.42 albertel 1610: <td>".
1.159 albertel 1611: &Apache::edit::insertlist($target,$token).
1.362 albertel 1612: '</td><td align="right" valign="top">' .
1613: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1614: &Apache::edit::end_row().
1.362 albertel 1615: &Apache::edit::start_spanning_row()."\n".
1.255 www 1616: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1617: }
1618: if ($target eq 'modified') {
1.219 albertel 1619: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1620: }
1621: if ($target eq 'tex') {
1622: $result .= '\noindent ';
1623: }
1624: return $result;
1.34 albertel 1625: }
1.159 albertel 1626:
1.34 albertel 1627: sub start_endouttext {
1.159 albertel 1628: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1629: my $result='';
1630: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1631: if ($target eq "modified") {
1632: $result='<endouttext />'.
1633: &Apache::edit::handle_insertafter('startouttext'); }
1634: return $result;
1.34 albertel 1635: }
1.159 albertel 1636:
1.34 albertel 1637: sub end_endouttext {
1.159 albertel 1638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1639: my @result=('','');
1640: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1641: return (@result);
1.34 albertel 1642: }
1.159 albertel 1643:
1.45 albertel 1644: sub delete_startouttext {
1.326 albertel 1645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1646: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1647: my $text=$$parser['-1']->get_text("/endouttext");
1648: my $ntoken=$$parser['-1']->get_token();
1649: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1650: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1651: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1652: # they did the last time round
1653: &Apache::lonxml::increasedepth($ntoken);
1654: &Apache::lonxml::decreasedepth($ntoken);
1655: return 1;
1.193 www 1656: }
1657:
1658: sub start_simpleeditbutton {
1659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1660: my $result='';
1.284 albertel 1661: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1662: ($target eq 'web') &&
1.330 albertel 1663: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1664: my $url=$env{'request.noversionuri'};
1.193 www 1665: $url=~s/\?.*$//;
1.367 albertel 1666: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1667: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1668: '<a href="'.$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 1669: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1670: }
1671: return $result;
1672: }
1673:
1674: sub end_simpleeditbutton {
1675: return '';
1.45 albertel 1676: }
1.34 albertel 1677:
1.1 albertel 1678: 1;
1679: __END__
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