Annotation of loncom/homework/structuretags.pm, revision 1.368
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.368 ! albertel 4: # $Id: structuretags.pm,v 1.367 2006/10/17 15:11:12 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"'; }
1.315 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) =
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);
1.244 albertel 966: if ($$tagstack[0] eq 'library') {
967: &init_problem_globals('library');
968: $Apache::lonhomework::type='problem';
969: }
1.159 albertel 970: if ($target eq 'edit') {
1.343 albertel 971: ($result,$form_tag_start)=
972: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
973: 'Edit');
974: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 975: my $temp=&Apache::edit::insertlist($target,$token);
976: $result.=$temp;
977: } elsif ($target eq 'modified') {
978: $result=$token->[4];
979: $result.=&Apache::edit::handle_insert();
1.340 albertel 980: } elsif (($target eq 'web' || $target eq 'webgrade')
981: && $$tagstack[0] eq 'library'
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: $result=&problem_edit_footer();
1000: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 1001: $env{'request.state'} eq "construct") {
1.349 albertel 1002: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1003: }
1.204 albertel 1004: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 1005: return $result;
1.197 www 1006: }
1007:
1008: sub start_definetag {
1.326 albertel 1009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1010:
1011: my $result;
1012:
1013: my $name = $token->[2]->{'name'};
1.326 albertel 1014: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1015: if ($name=~/^\//) {
1016: $result=
1017: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1018: } else {
1019: $result=
1020: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1021: }
1022: $skip=~s/\</\<\;/gs;
1023: $skip=~s/\>/\>\;/gs;
1024: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1025: return $result;
1026: }
1027:
1028: sub end_definetag {
1029: return '';
1.1 albertel 1030: }
1031:
1032: sub start_block {
1.201 albertel 1033: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1034:
1035: my $result;
1.1 albertel 1036:
1.339 albertel 1037: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1038: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1039: my $code = $token->[2]->{'condition'};
1.201 albertel 1040: if (defined($code)) {
1.137 albertel 1041: if (!$Apache::lonxml::default_homework_loaded) {
1042: &Apache::lonxml::default_homework_load($safeeval);
1043: }
1.131 albertel 1044: $result = &Apache::run::run($code,$safeeval);
1045: &Apache::lonxml::debug("block :$code: returned :$result:");
1046: } else {
1047: $result='1';
1048: }
1049: if ( ! $result ) {
1.201 albertel 1050: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1051: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1052: }
1053: $result='';
1054: } elsif ($target eq 'edit') {
1055: $result .=&Apache::edit::tag_start($target,$token);
1056: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1057: $token,40);
1058: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1059: } elsif ($target eq 'modified') {
1060: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1061: $safeeval,'condition');
1062: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1063: }
1.131 albertel 1064: return $result;
1.1 albertel 1065: }
1066:
1067: sub end_block {
1.167 www 1068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1069: my $result;
1070: if ($target eq "edit") {
1071: $result.= &Apache::edit::tag_end($target,$token,'');
1072: }
1073: return $result;
1074: }
1075:
1076: sub start_languageblock {
1.201 albertel 1077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1078:
1079: my $result;
1080:
1.339 albertel 1081: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1082: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1083: my $include = $token->[2]->{'include'};
1084: my $exclude = $token->[2]->{'exclude'};
1085: my %languages=&Apache::loncommon::display_languages();
1086: $result='1';
1087: if ($include) {
1088: $result='';
1089: foreach (split(/\,/,$include)) {
1090: if ($languages{$_}) { $result='1'; }
1091: }
1092: }
1093: if ($exclude) {
1094: foreach (split(/\,/,$exclude)) {
1095: if ($languages{$_}) { $result='0'; }
1096: }
1097: }
1098: if ( ! $result ) {
1099: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1100: $style);
1101: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1102: }
1103: $result='';
1.167 www 1104: } elsif ($target eq 'edit') {
1105: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1106: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1107: $token,40);
1.211 albertel 1108: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1109: $token,40);
1110: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1111: } elsif ($target eq 'modified') {
1112: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1113: $safeeval,'include',
1114: 'exclude');
1.167 www 1115: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1116: }
1117: return $result;
1118: }
1119:
1120: sub end_languageblock {
1.170 www 1121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1122: my $result;
1.201 albertel 1123: if ($target eq "edit") {
1.170 www 1124: $result.= &Apache::edit::tag_end($target,$token,'');
1125: }
1126: return $result;
1127: }
1128:
1129: sub start_instructorcomment {
1.201 albertel 1130: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1131:
1132: my $result;
1133:
1.339 albertel 1134: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1135: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1136: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1137: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1138: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1139: $parser,$style);
1.170 www 1140: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1141: }
1142: $result='';
1143: } elsif ($target eq 'edit') {
1144: $result .=&Apache::edit::tag_start($target,$token);
1145: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1146: }
1147: return $result;
1148: }
1149:
1150: sub end_instructorcomment {
1.159 albertel 1151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1152: my $result;
1153: if ($target eq "edit") {
1154: $result.= &Apache::edit::tag_end($target,$token,'');
1155: }
1156: return $result;
1.4 tsai 1157: }
1158:
1159: sub start_while {
1.326 albertel 1160: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1161:
1.160 albertel 1162: my $result;
1.339 albertel 1163: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1164: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1165: my $code = $token->[2]->{'condition'};
1.4 tsai 1166:
1.160 albertel 1167: push( @Apache::structuretags::whileconds, $code);
1168: if (!$Apache::lonxml::default_homework_loaded) {
1169: &Apache::lonxml::default_homework_load($safeeval);
1170: }
1171: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1172: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1173: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1174: push( @Apache::structuretags::whileline, $token->[5]);
1175: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1176: if ( $result ) {
1177: &Apache::lonxml::newparser($parser,\$bodytext);
1178: }
1179: } elsif ($target eq 'edit') {
1180: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1181: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1182: $token,40);
1183: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1184: } elsif ($target eq 'modified') {
1185: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1186: $safeeval,'condition');
1187: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1188: }
1.160 albertel 1189: return $result;
1.4 tsai 1190: }
1191:
1192: sub end_while {
1.159 albertel 1193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1194: my $result;
1195:
1.339 albertel 1196: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1197: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1198: my $code = pop(@Apache::structuretags::whileconds);
1199: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1200: my $line = pop(@Apache::structuretags::whileline);
1201: my $return = &Apache::run::run($code,$safeeval);
1202: my $starttime=time;
1203: my $error=0;
1204: while ($return) {
1205: if (time-$starttime >
1206: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1207: #$return = 0; $error=1; next;
1.161 albertel 1208: }
1209: $result.=&Apache::scripttag::xmlparse($bodytext);
1210: $return = &Apache::run::run($code,$safeeval);
1211: }
1212: if ($error) {
1.270 albertel 1213: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1214: }
1215: } elsif ($target eq "edit") {
1216: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1217: }
1.160 albertel 1218: return $result;
1.1 albertel 1219: }
1.6 tsai 1220:
1.160 albertel 1221: # <randomlist show="1">
1.6 tsai 1222: # <tag1>..</tag1>
1223: # <tag2>..</tag2>
1224: # <tag3>..</tag3>
1.160 albertel 1225: # ...
1.6 tsai 1226: # </randomlist>
1227: sub start_randomlist {
1.326 albertel 1228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1229: my $result;
1.339 albertel 1230: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1231: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1232: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1233: my $b_parser= HTML::LCParser->new(\$body);
1234: $b_parser->xml_mode(1);
1235: $b_parser->marked_sections(1);
1.159 albertel 1236: my $b_tok;
1237: my @randomlist;
1238: my $list_item;
1239: while($b_tok = $b_parser->get_token() ) {
1240: if($b_tok->[0] eq 'S') { # start tag
1241: # get content of the tag until matching end tag
1242: # get all text upto the matching tag
1243: # and push the content into @randomlist
1244: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1245: $b_parser);
1246: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1247: push(@randomlist,$list_item);
1248: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1249: # $list_item</b>";
1250: }
1251: if($b_tok->[0] eq 'T') { # text
1252: # what to do with text in between tags?
1253: # print "<b>TEXT $b_tok->[1]</b><br />";
1254: }
1255: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1256: # print "<b>END-TAG $b_tok->[1]</b><br />";
1257: # }
1258: }
1.303 albertel 1259: if (@randomlist) {
1260: my @idx_arr = (0 .. $#randomlist);
1261: &Apache::structuretags::shuffle(\@idx_arr);
1262: my $bodytext = '';
1263: my $show=$#randomlist;
1264: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1265: $showarg--;
1266: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1267: for(0 .. $show) {
1268: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1269: }
1270: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1271: }
1272: } elsif ($target eq 'edit' ) {
1273: $result .=&Apache::edit::tag_start($target,$token);
1274: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1275: $token,5);
1276: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1277: } elsif ($target eq 'modified' ) {
1278: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1279: $safeeval,'show');
1280: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1281: }
1282: return $result;
1.7 tsai 1283: }
1284:
1285: sub shuffle {
1286: my $a=shift;
1287: my $i;
1.303 albertel 1288: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1289: &Apache::response::pushrandomnumber();
1.159 albertel 1290: for($i=@$a;--$i;) {
1291: my $j=int(&Math::Random::random_uniform() * ($i+1));
1292: next if $i == $j;
1293: @$a[$i,$j] = @$a[$j,$i];
1294: }
1.251 albertel 1295: &Apache::response::poprandomnumber();
1.7 tsai 1296: }
1.6 tsai 1297: }
1298:
1299: sub end_randomlist {
1.159 albertel 1300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1301: my $result;
1302: if ($target eq 'edit' ) {
1303: $result=&Apache::edit::tag_end($target,$token,
1304: 'End Randomly Parsed Block');
1305: }
1306: return $result;
1.6 tsai 1307: }
1308:
1.283 albertel 1309: sub ordered_show_check {
1310: my $last_part=$Apache::inputtags::partlist[-2];
1311: my $in_order=
1312: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1313: my $in_order_show=1;
1314: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1315: $in_order_show=&Apache::response::check_status($last_part);
1316: }
1317: return $in_order_show;
1318: }
1319:
1.11 albertel 1320: sub start_part {
1.326 albertel 1321: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1322: if (!$Apache::lonxml::metamode) {
1323: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1324: # duedates.
1325: }
1.159 albertel 1326: my $result='';
1327: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1328: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1329: $Apache::inputtags::part=$id;
1.177 albertel 1330: push(@Apache::inputtags::partlist,$id);
1331: @Apache::inputtags::response=();
1.159 albertel 1332: @Apache::inputtags::previous=();
1333: @Apache::inputtags::previous_version=();
1.241 albertel 1334: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1335: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1336: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1337: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1338: my $in_order_show=&ordered_show_check();
1.214 albertel 1339: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1340: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1341: &Apache::run::run($expression,$safeeval);
1.159 albertel 1342:
1343: if ($target eq 'meta') {
1.224 www 1344: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1345: return &Apache::response::mandatory_part_meta.
1346: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1347: } elsif ($target eq 'web' || $target eq 'grade' ||
1348: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1349: if ($hidden || !$in_order_show) {
1.326 albertel 1350: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1351: } else {
1352: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1353: push (@Apache::inputtags::status,$status);
1354: my $expression='$external::datestatus="'.$status.'";';
1355: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1356: &Apache::run::run($expression,$safeeval);
1.284 albertel 1357: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1358: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1359: }
1.216 albertel 1360: if (( $status eq 'CLOSED' ) ||
1361: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1362: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1363: ( $status eq 'BANNED') ||
1364: ( $status eq 'UNAVAILABLE') ||
1365: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1366: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1367: $style);
1.159 albertel 1368: if ( $target eq "web" ) {
1.211 albertel 1369: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1370: } elsif ( $target eq 'tex' ) {
1.284 albertel 1371: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1372: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1373: } else {
1.211 albertel 1374: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1375: }
1.159 albertel 1376: }
1377: } else {
1378: if ($target eq 'tex') {
1.284 albertel 1379: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1380: if ($$tagstack[-2] eq 'td') {
1381: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1382: } else {
1383: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1384: }
1.195 sakharuk 1385: }
1.159 albertel 1386: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1387: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1388: my @allkeys = split /,/,$allkeys;
1389: my $allow_print_points = 0;
1390: foreach my $partial_key (@allkeys) {
1.230 albertel 1391: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1392: if ($1 ne '0') {$allow_print_points=1;}
1393: }
1394: }
1.275 albertel 1395: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1396: if (defined($maxtries) && $maxtries < 0) {
1397: $allow_print_points=0;
1398: }
1.302 albertel 1399: if (lc($env{'course.'.$env{'request.course.id'}.
1400: '.disableexampointprint'}) eq 'yes') {
1401: $allow_print_points=0;
1402: }
1.222 sakharuk 1403: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1404: } elsif ($target eq 'web') {
1.356 www 1405: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1406: }
1407: }
1408: }
1409: } elsif ($target eq 'edit') {
1410: $result.=&Apache::edit::tag_start($target,$token);
1411: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1412: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1413: ' '.
1414: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1415: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1416: } elsif ($target eq 'modified') {
1417: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1418: $safeeval,'id','display');
1.159 albertel 1419: if ($constructtag) {
1.225 albertel 1420: #limiting ids to only letters numbers, and space
1.224 www 1421: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1422: $result = &Apache::edit::rebuild_tag($token);
1423: $result.=&Apache::edit::handle_insert();
1424: }
1425: }
1426: return $result;
1.11 albertel 1427: }
1428:
1429: sub end_part {
1.159 albertel 1430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1431: &Apache::lonxml::debug("in end_part $target ");
1432: my $status=$Apache::inputtags::status['-1'];
1433: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1434: my $in_order_show=&ordered_show_check();
1.321 albertel 1435: my $result;
1436: if (!$Apache::lonxml::metamode) {
1437: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1438: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1439: }
1.312 albertel 1440: if ($target eq 'grade') {
1.249 albertel 1441: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1442: !$hidden && $in_order_show) {
1.311 foxr 1443: $result.=&Apache::inputtags::grade;
1.249 albertel 1444: } else {
1445: # move any submission data to .hidden
1446: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1447: }
1.283 albertel 1448: } elsif (($target eq 'web' || $target eq 'tex') &&
1449: !$hidden && $in_order_show) {
1.159 albertel 1450: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1451: $target);
1.212 albertel 1452: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1453: $gradestatus='';
1454: }
1.311 foxr 1455: $result.=$gradestatus;
1.265 sakharuk 1456: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1457: } elsif ($target eq 'edit') {
1.311 foxr 1458: $result.=&Apache::edit::end_table();
1.322 albertel 1459: } elsif ($target eq 'modified') {
1460: $result .= $token->[2];
1461: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1462: }
1463: pop @Apache::inputtags::status;
1464: $Apache::inputtags::part='';
1.295 albertel 1465: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1466: return $result;
1.11 albertel 1467: }
1.1 albertel 1468:
1.25 albertel 1469: sub start_preduedate {
1.326 albertel 1470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1471: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1472: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1473: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1474: if (!$Apache::lonhomework::scantronmode &&
1475: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1476: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1477: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1478: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1479: }
1.24 albertel 1480: }
1.159 albertel 1481: return '';
1.24 albertel 1482: }
1483:
1.25 albertel 1484: sub end_preduedate {
1.159 albertel 1485: return '';
1.24 albertel 1486: }
1487:
1.25 albertel 1488: sub start_postanswerdate {
1.326 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1490: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1491: if ($Apache::lonhomework::scantronmode ||
1492: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1493: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1494: }
1495: } elsif ($target eq 'tex') {
1.326 albertel 1496: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1497: }
1498: return '';
1.24 albertel 1499: }
1500:
1.25 albertel 1501: sub end_postanswerdate {
1.159 albertel 1502: return '';
1.24 albertel 1503: }
1504:
1.25 albertel 1505: sub start_notsolved {
1.326 albertel 1506: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1507: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1508: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1509: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1510: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1511: if ($gradestatus =~ /^correct/ &&
1512: &Apache::response::show_answer()) {
1.159 albertel 1513: &Apache::lonxml::debug("skipping");
1.326 albertel 1514: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1515: }
1.24 albertel 1516: }
1.159 albertel 1517: return '';
1.24 albertel 1518: }
1519:
1.25 albertel 1520: sub end_notsolved {
1.159 albertel 1521: return '';
1.24 albertel 1522: }
1523:
1524: sub start_solved {
1.326 albertel 1525: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1526: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1527: $target eq 'tex') {
1528: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1529: if ($gradestatus !~ /^correct/ ||
1530: !&Apache::response::show_answer()) {
1.326 albertel 1531: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1532: }
1.24 albertel 1533: }
1.159 albertel 1534: return '';
1.24 albertel 1535: }
1536:
1537: sub end_solved {
1.248 albertel 1538: return '';
1539: }
1540:
1541: sub start_problemtype {
1.326 albertel 1542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1543: my $result;
1.339 albertel 1544: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1545: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1546: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1547: if (!defined($mode)) { $mode='show'; }
1548: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1549: my $found=0;
1550: foreach my $type (split(',',$for)) {
1551: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1552: }
1553: if ($mode eq 'show' && !$found) {
1.326 albertel 1554: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1555: }
1556: if ($mode eq 'hide' && $found) {
1.326 albertel 1557: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1558: }
1559: } elsif ($target eq 'edit') {
1560: $result .=&Apache::edit::tag_start($target,$token);
1561: $result.=&Apache::edit::select_arg('Mode:','mode',
1562: [['show','Show'],
1563: ['hide','Hide']]
1564: ,$token);
1565: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1566: [ ['exam','Exam/Quiz Problem'],
1567: ['survey','Survey'],
1568: ['problem','Homework Problem'] ]
1569: ,$token);
1570: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1571: } elsif ($target eq 'modified') {
1572: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1573: $safeeval,'mode','for');
1574: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1575: }
1576: return $result;
1577: }
1578:
1579: sub end_problemtype {
1.159 albertel 1580: return '';
1.24 albertel 1581: }
1.34 albertel 1582:
1583: sub start_startouttext {
1.159 albertel 1584: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1585: my @result=(''.'');
1586: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1587: return (@result);
1.34 albertel 1588: }
1.159 albertel 1589:
1.34 albertel 1590: sub end_startouttext {
1.326 albertel 1591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1592: my $result='';
1593: my $text='';
1594:
1595: if ($target eq 'edit') {
1.326 albertel 1596: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1597: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1598: <td>".&mt('Delete:').
1.159 albertel 1599: &Apache::edit::deletelist($target,$token)
1600: ."</td>
1.42 albertel 1601: <td>".
1.159 albertel 1602: &Apache::edit::insertlist($target,$token).
1.362 albertel 1603: '</td><td align="right" valign="top">' .
1604: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1605: &Apache::edit::end_row().
1.362 albertel 1606: &Apache::edit::start_spanning_row()."\n".
1.255 www 1607: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1608: }
1609: if ($target eq 'modified') {
1.219 albertel 1610: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1611: }
1612: if ($target eq 'tex') {
1613: $result .= '\noindent ';
1614: }
1615: return $result;
1.34 albertel 1616: }
1.159 albertel 1617:
1.34 albertel 1618: sub start_endouttext {
1.159 albertel 1619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1620: my $result='';
1621: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1622: if ($target eq "modified") {
1623: $result='<endouttext />'.
1624: &Apache::edit::handle_insertafter('startouttext'); }
1625: return $result;
1.34 albertel 1626: }
1.159 albertel 1627:
1.34 albertel 1628: sub end_endouttext {
1.159 albertel 1629: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1630: my @result=('','');
1631: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1632: return (@result);
1.34 albertel 1633: }
1.159 albertel 1634:
1.45 albertel 1635: sub delete_startouttext {
1.326 albertel 1636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1637: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1638: my $text=$$parser['-1']->get_text("/endouttext");
1639: my $ntoken=$$parser['-1']->get_token();
1640: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1641: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1642: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1643: # they did the last time round
1644: &Apache::lonxml::increasedepth($ntoken);
1645: &Apache::lonxml::decreasedepth($ntoken);
1646: return 1;
1.193 www 1647: }
1648:
1649: sub start_simpleeditbutton {
1650: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1651: my $result='';
1.284 albertel 1652: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1653: ($target eq 'web') &&
1.330 albertel 1654: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1655: my $url=$env{'request.noversionuri'};
1.193 www 1656: $url=~s/\?.*$//;
1.367 albertel 1657: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1658: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1659: '<a href="'.$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 1660: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1661: }
1662: return $result;
1663: }
1664:
1665: sub end_simpleeditbutton {
1666: return '';
1.45 albertel 1667: }
1.34 albertel 1668:
1.1 albertel 1669: 1;
1670: __END__
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