Annotation of loncom/homework/structuretags.pm, revision 1.359
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.359 ! albertel 4: # $Id: structuretags.pm,v 1.358 2006/06/24 01:28:17 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.248 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
50: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 51: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 52: return $bodytext;
1.159 albertel 53: }
54: return '';
1.10 albertel 55: }
56:
57: sub end_web {
1.44 ng 58: return '';
1.10 albertel 59: }
60:
61: sub start_tex {
1.326 albertel 62: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 63: my $result='';
1.326 albertel 64: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 65: if ($target eq 'tex') {
66: return $bodytext.' ';
1.159 albertel 67: }
1.198 sakharuk 68: return $result;;
1.10 albertel 69: }
70:
71: sub end_tex {
1.44 ng 72: return '';
1.9 albertel 73: }
74:
1.48 albertel 75: sub page_start {
1.345 albertel 76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
77: $extra_head)=@_;
1.159 albertel 78: my %found;
1.207 albertel 79: foreach my $taginside (@$tagstack) {
1.159 albertel 80: foreach my $taglookedfor ('html','body','form') {
81: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
82: }
83: }
84:
1.343 albertel 85: if ($target eq 'tex') {
86: return
87: &Apache::londefdef::start_html($target,$token,$tagstack,
88: $parstack,$parser,$safeeval);
89: }
90:
1.344 albertel 91: my %body_args;
92: if (defined($found{'html'})) {
93: $body_args{'skip_phases'}{'head'}=1;
94: } else {
1.343 albertel 95:
1.345 albertel 96: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 97:
1.336 albertel 98: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 99: if ($css_href =~ /\S/) {
100: &Apache::lonxml::extlink($css_href);
1.343 albertel 101: $extra_head .=
1.335 albertel 102: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
103: }
1.327 albertel 104: if ($target eq 'edit') {
1.343 albertel 105: $extra_head.=&Apache::edit::js_change_detection().
106: "<script type=\"text/javascript\">\n".
107: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
108: &Apache::loncommon::browser_and_searcher_javascript().
109: "\n</script>\n";
110: }
1.159 albertel 111: }
1.343 albertel 112:
1.344 albertel 113: if (defined($found{'body'})) {
114: $body_args{'skip_phases'}{'body'}=1;
115: } elsif (!defined($found{'body'})
116: && $env{'request.state'} eq 'construct') {
1.343 albertel 117: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 118: # no extra args to bodytag
1.297 albertel 119: }
1.272 albertel 120: } elsif (!defined($found{'body'})) {
1.343 albertel 121: my %add_entries;
1.159 albertel 122: my $background=&Apache::lonxml::get_param('background',$parstack,
123: $safeeval);
1.343 albertel 124: if ($background ne '' ) {
125: $add_entries{'background'} = $background;
126: }
1.344 albertel 127:
1.290 albertel 128: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
129: $safeeval);
1.344 albertel 130: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
131:
132: $body_args{'bgcolor'} = $bgcolor;
133: $body_args{'no_title'} = 1;
134: $body_args{'force_register'} = 1;
135: $body_args{'add_entries'} = \%add_entries;
136: }
137:
138: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
139: \%body_args);
140:
141: if (!defined($found{'body'})
142: && $env{'request.state'} ne 'construct'
143: && ($target eq 'web' || $target eq 'webgrade')) {
144:
145: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
146: if ($symb eq '' && !$publicuser) {
147: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
148: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
149: $page_start .= $help;
1.159 albertel 150: }
1.344 albertel 151: }
152:
153: if (!defined($found{'body'})) {
1.343 albertel 154: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 155: }
1.344 albertel 156:
1.159 albertel 157: my $form_tag_start;
158: if (!defined($found{'form'})) {
1.337 albertel 159: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 160: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 161: $form_tag_start.=$uri.'" ';
162: if ($target eq 'edit') {
163: $form_tag_start.=&Apache::edit::form_change_detection();
164: }
165: $form_tag_start.='>';
1.355 albertel 166:
167: my $symb=&Apache::lonnet::symbread();
168: if ($symb =~ /\S/) {
169: $symb=
170: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
171: $form_tag_start.=
172: '<input type="hidden" name="symb" value="'.$symb.'" />';
173: }
1.159 albertel 174: }
1.343 albertel 175: return ($page_start,$form_tag_start);
1.105 albertel 176: }
177:
1.141 matthew 178: #use Time::HiRes();
1.105 albertel 179: sub get_resource_name {
1.159 albertel 180: my ($parstack,$safeeval)=@_;
1.204 albertel 181: if (defined($Apache::lonhomework::name)) {
182: return $Apache::lonhomework::name;
183: }
1.279 albertel 184: my ($symb)=&Apache::lonxml::whichuser();
185: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 186: if ($name eq '') {
187: $name=&Apache::lonnet::EXT('resource.title');
188: if ($name eq 'con_lost') { $name = ''; }
189: }
1.204 albertel 190: if ($name!~/\S+/) {
1.284 albertel 191: $name=$env{'request.uri'};
1.205 albertel 192: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 193: }
1.159 albertel 194: $Apache::lonhomework::name=$name;
195: return $name;
1.105 albertel 196: }
197:
198: sub setup_rndseed {
1.159 albertel 199: my ($safeeval)=@_;
200: my $rndseed;
1.162 albertel 201: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 202: if ($env{'request.state'} eq "construct"
203: || $symb eq ''
204: || $Apache::lonhomework::type eq 'practice'
205: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 206: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 207: ['rndseed']);
1.284 albertel 208: $rndseed=$env{'form.rndseed'};
1.159 albertel 209: if (!$rndseed) {
1.162 albertel 210: $rndseed=$Apache::lonhomework::history{'rndseed'};
211: if (!$rndseed) {
212: $rndseed=time;
213: }
1.284 albertel 214: $env{'form.rndseed'}=$rndseed;
1.162 albertel 215: }
1.284 albertel 216: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
217: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 218: srand(time);
219: $rndseed=int(rand(2100000000));
1.284 albertel 220: $env{'form.rndseed'}=$rndseed;
221: delete($env{'form.resetdata'});
222: delete($env{'form.newrandomization'});
1.159 albertel 223: }
1.187 albertel 224: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 225: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 226: }
1.247 albertel 227: if ($Apache::lonhomework::history{'resource.CODE'}) {
228: $rndseed=&Apache::lonnet::rndseed();
229: }
1.221 albertel 230: if ($safeeval) {
231: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 232: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 233: }
1.159 albertel 234: }
235: return $rndseed;
1.105 albertel 236: }
237:
1.268 albertel 238: sub remember_problem_state {
239: return '
1.284 albertel 240: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
241: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
242: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 243: }
244:
1.105 albertel 245: sub problem_edit_header {
1.268 albertel 246: return '<input type="hidden" name="submitted" value="edit" />'.
247: &Apache::structuretags::remember_problem_state().'
1.210 albertel 248: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 249: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 250: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 251: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
252: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
253: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 ! albertel 254: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 255: .'</td></tr></table>'.
1.282 albertel 256: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 257: }
258:
259: sub problem_edit_footer {
1.210 albertel 260: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 261: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 262: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 263: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 264: }
265:
1.235 albertel 266: sub option {
267: my ($value,$name) = @_;
268: my $result ="<option value='".$value."' ";
1.284 albertel 269: if ($env{'form.'.$name} eq $value) {
1.235 albertel 270: $result.=" selected='on' ";
271: }
272: $result.='>';
273: return $result;
274: }
275:
1.105 albertel 276: sub problem_web_to_edit_header {
1.159 albertel 277: my ($rndseed)=@_;
1.313 albertel 278: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
279: if (!$Apache::lonhomework::parsing_a_task) {
280: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
281: }
282: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 283: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
284: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 285: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 286: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 287: $rndseed.'"
1.270 albertel 288: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 289: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 290: my $show_all_foils_text =
291: ($Apache::lonhomework::parsing_a_task) ?
292: &mt(' Show All Instances')
293: : &mt(' Show All Foils');
294:
1.284 albertel 295: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 296: $result.= ' />'.$show_all_foils_text.
1.228 www 297: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 298: '</label><hr />';
1.313 albertel 299: if (!$Apache::lonhomework::parsing_a_task) {
300: $result.="
1.235 albertel 301: <nobr>
302: Problem Status:
303: <select name='problemstate'>
1.270 albertel 304: <option value=''></option>
1.235 albertel 305: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
306: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
307: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
308: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
309: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
310: </select>
311: </nobr>
312: <nobr>
313: Problem Type:
314: <select name='problemtype'>
1.270 albertel 315: <option value=''></option>
1.242 albertel 316: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
317: ".&option('problem','problemtype').&mt("Homework problem")."</option>
318: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 319: </select>
320: </nobr>
321: <nobr>
322: Feedback Mode:
323: <select name='problemstatus'>
324: <option value=''></option>
1.242 albertel 325: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
326: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 327: </select>
328: </nobr>
1.242 albertel 329: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 330: <hr />";
1.313 albertel 331: my $numtoanalyze=$env{'form.numtoanalyze'};
332: if (!$numtoanalyze) { $numtoanalyze=20; }
333: $result.= '<input type="submit" name="problemmode" value='.
334: &mt('"Calculate answers').'" /> for
1.136 albertel 335: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 336: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
337: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 338: '',undef,undef,300).
1.210 albertel 339: '<hr />';
1.313 albertel 340: }
1.159 albertel 341: return $result;
1.48 albertel 342: }
343:
1.65 albertel 344: sub initialize_storage {
1.357 albertel 345: my ($given_symb) = @_;
1.353 albertel 346: undef(%Apache::lonhomework::results);
347: undef(%Apache::lonhomework::history);
1.357 albertel 348: my ($symb,$courseid,$domain,$name) =
349: &Apache::lonxml::whichuser($given_symb);
1.353 albertel 350:
351: # anonymous users (CODEd exams) have no data
352: if ($name eq 'anonymous'
353: && !defined($domain)) {
354: return;
355: }
356:
1.333 albertel 357: if ($env{'request.state'} eq 'construct'
358: || $symb eq ''
359: || $Apache::lonhomework::type eq 'practice') {
360:
361: my $namespace = $symb || $env{'request.uri'};
362: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
363: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
364: $env{'form.newrandomization'} eq &mt('New Randomization')) {
365: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
366: &Apache::lonxml::debug("Attempt reset");
367: }
1.159 albertel 368: %Apache::lonhomework::history=
1.333 albertel 369: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 370: my ($temp)=keys %Apache::lonhomework::history ;
371: &Apache::lonxml::debug("Return message of $temp");
372: } else {
373: %Apache::lonhomework::history=
374: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
375: }
1.353 albertel 376:
1.159 albertel 377: #ignore error conditions
1.67 albertel 378: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 379: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 380: }
381:
382: # -------------------------------------------------------------finalize_storage
383: # Stores away the result has to a student's environment
384: # checks form.grade_ for specific values, other wises stores
385: # to the running users environment
1.285 raeburn 386: # Will increment totals for attempts, students, and corrects
387: # if running user has student role.
1.65 albertel 388: sub finalize_storage {
1.357 albertel 389: my ($given_symb) = @_;
1.159 albertel 390: my $result;
1.289 albertel 391: if (%Apache::lonhomework::results) {
1.323 albertel 392: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
393: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 394: my ($symb,$courseid,$domain,$name) =
395: &Apache::lonxml::whichuser($given_symb);
1.333 albertel 396: if ($env{'request.state'} eq 'construct'
397: || $symb eq ''
398: || $Apache::lonhomework::type eq 'practice') {
399: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 400: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 401: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 402: $namespace,'',$domain,$name);
1.159 albertel 403: &Apache::lonxml::debug('Construct Store return message:'.$result);
404: } else {
405: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
406: $symb,$courseid,$domain,$name);
407: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 408: if ($env{'request.role'} =~/^st/) {
409: &store_aggregates($symb,$courseid);
410: }
1.159 albertel 411: }
1.323 albertel 412: } else {
413: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 414: }
1.159 albertel 415: return $result;
1.65 albertel 416: }
1.289 albertel 417: use Data::Dumper;
1.65 albertel 418:
1.285 raeburn 419: # -------------------------------------------------------------store_aggregates
420: # Sends hash of values to be incremented in nohist_resourcetracker.db
421: # for the course. Increments total number of attempts, unique students
422: # and corrects for each part for an instance of a problem, as appropriate.
423: sub store_aggregates {
424: my ($symb,$courseid) = @_;
1.286 albertel 425: my %aggregate;
426: my @parts;
1.288 albertel 427: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
428: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 429: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 430: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 431: push(@parts, $1);
1.285 raeburn 432: }
433: }
1.286 albertel 434: foreach my $part (@parts) {
435: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
436: eq 'APPROX_ANS' ||
437: $Apache::lonhomework::results{'resource.'.$part.'.award'}
438: eq 'EXACT_ANS') {
1.287 albertel 439: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 440: }
1.286 albertel 441: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 442: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 443: } else {
1.293 albertel 444: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 445: if ($last_reset) {
1.293 albertel 446: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 447: $aggregate{$symb."\0".$part."\0users"} = 1;
448: }
449: }
1.285 raeburn 450: }
1.287 albertel 451: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 452: }
1.292 raeburn 453: if (keys (%aggregate) > 0) {
1.289 albertel 454: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 455: $cdomain,$cname);
456: }
457: }
1.289 albertel 458:
1.65 albertel 459: sub checkout_msg {
1.211 albertel 460: my %lt=&Apache::lonlocal::texthash(
461: 'resource'=>'The resource needs to be checked out',
462: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
463: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
464: 'checkout'=>'Check out Exam for Viewing',
465: 'checkout?'=>'Check out Exam?');
1.352 albertel 466: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 467: return (<<ENDCHECKOUT);
1.211 albertel 468: <h2>$lt{'resource'}</h2>
469: <p>$lt{'id_expln'}</p>
470: <font color="red">
471: <p>$lt{'warning'}</p>
1.91 albertel 472: </font>
1.352 albertel 473: <form name="checkout" method="POST" action="$uri">
1.91 albertel 474: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 475: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 476: </form>
477: ENDCHECKOUT
478: }
479:
1.252 albertel 480: sub firstaccess_msg {
1.253 albertel 481: my ($time,$symb)=@_;
482: my ($map)=&Apache::lonnet::decode_symb($symb);
483: my $foldertitle=&Apache::lonnet::gettitle($map);
484: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 485: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 486: return (<<ENDCHECKOUT);
1.253 albertel 487: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.352 albertel 488: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 489: <input type="hidden" name="markaccess" value="yes" />
490: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
491: </form>
492: ENDCHECKOUT
493: }
494:
1.204 albertel 495: sub init_problem_globals {
496: my ($type)=@_;
497: #initialize globals
1.308 foxr 498: # For problems, we start out in part 0 (outside a <part> tag).
499: # and part 0 is used to describe the main body of the <problem>
500: #
1.204 albertel 501: if ($type eq 'problem') {
502: $Apache::inputtags::part='0';
503: @Apache::inputtags::partlist=('0');
1.266 albertel 504: $Apache::lonhomework::problemstatus=&get_problem_status('0');
505: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 506:
1.266 albertel 507: } elsif ($type eq 'library') {
1.204 albertel 508: $Apache::inputtags::part='';
509: @Apache::inputtags::partlist=();
510: $Apache::lonhomework::problemstatus='';
1.266 albertel 511: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 512:
1.304 albertel 513: } elsif ($type eq 'Task') {
514: $Apache::inputtags::part='0';
515: @Apache::inputtags::partlist=('0');
516: $Apache::lonhomework::problemstatus='';
517: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 518: }
519: @Apache::inputtags::responselist = ();
520: @Apache::inputtags::importlist = ();
521: @Apache::inputtags::previous=();
522: @Apache::inputtags::previous_version=();
523: $Apache::structuretags::printanswer='No';
524: @Apache::structuretags::whileconds=();
525: @Apache::structuretags::whilebody=();
526: @Apache::structuretags::whileline=();
527: $Apache::lonhomework::scantronmode=0;
528: undef($Apache::lonhomework::name);
1.358 albertel 529: undef($Apache::lonhomework::default_type);
530: undef($Apache::lonhomework::type);
531: undef($Apache::lonhomework::problemstatus);
1.204 albertel 532: }
533:
534: sub reset_problem_globals {
535: my ($type)=@_;
536: undef(%Apache::lonhomework::history);
537: undef(%Apache::lonhomework::results);
538: undef($Apache::inputtags::part);
1.208 albertel 539: #don't undef this, lonhomework.pm takes care of this, we use this to
540: #detect if we try to do 2 problems in one file
541: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 542: undef($Apache::lonhomework::name);
1.358 albertel 543: undef($Apache::lonhomework::default_type);
544: undef($Apache::lonhomework::type);
545: undef($Apache::lonhomework::scantronmode);
546: undef($Apache::lonhomework::problemstatus);
547: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 548: }
549:
1.241 albertel 550: sub set_problem_state {
1.240 albertel 551: my ($part)=@_;
1.284 albertel 552: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 553: $Apache::lonhomework::history{"resource.$part.solved"}=
554: 'correct_by_student';
555: }
556: }
557:
1.241 albertel 558: sub get_problem_status {
559: my ($part)=@_;
1.267 albertel 560: my $problem_status;
1.284 albertel 561: if ($env{'request.state'} eq 'construct' &&
562: defined($env{'form.problemstatus'})) {
563: $problem_status=$env{'form.problemstatus'};
1.267 albertel 564: } else {
565: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
566: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 567: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 568: }
569: return $problem_status;
570: }
571:
1.9 albertel 572: sub start_problem {
1.326 albertel 573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 574:
1.311 foxr 575: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 576: if (!$Apache::lonxml::metamode) {
577: &Apache::lonxml::startredirection();
578: }
1.311 foxr 579:
1.308 foxr 580: # Problems don't nest and we don't allow more than one <problem> in
581: # a .problem file.
582: #
1.184 albertel 583: if ( $Apache::inputtags::part ne '' ||
584: $Apache::lonhomework::parsing_a_problem) {
585: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 586: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 587: return '';
588: }
1.184 albertel 589:
590: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 591: &init_problem_globals('problem');
1.166 albertel 592:
1.284 albertel 593: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 594: $Apache::lonhomework::scantronmode=1;
595: }
1.161 albertel 596:
1.246 albertel 597: &initialize_storage();
1.159 albertel 598: if ($target ne 'analyze') {
599: if ($target eq 'web') {
600: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 601: }
1.284 albertel 602: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 603: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 604: if (($env{'request.state'} eq 'construct') &&
605: defined($env{'form.problemtype'})) {
606: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 607: }
1.332 albertel 608: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 609: }
1.164 albertel 610: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 611: my $uri=$env{'request.uri'};
1.159 albertel 612: if ($uri=~/\.(\w+)$/) {
613: $Apache::lonhomework::type=$1;
614: &Apache::lonxml::debug("Using type of $1");
615: } else {
616: $Apache::lonhomework::type='problem';
617: &Apache::lonxml::debug("Using default type, problem, :$uri:");
618: }
1.87 albertel 619: }
1.301 albertel 620: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 621:
1.159 albertel 622: #added vars to the scripting enviroment
1.213 albertel 623: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 624: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 625: &Apache::run::run($expression,$safeeval);
1.159 albertel 626: my $status;
627: my $accessmsg;
628:
1.343 albertel 629: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 630: my ($result,$form_tag_start);
1.354 albertel 631: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
632: || $target eq 'edit') {
1.350 albertel 633: ($result,$form_tag_start) =
634: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
635: $name);
636: }
637:
1.284 albertel 638: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 639:
640: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
641: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
642: $target eq 'tex') {
643: #handle exam checkout
644: if ($Apache::lonhomework::type eq 'exam') {
645: my $token=
646: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 647: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 648: $token=&Apache::lonxml::maketoken();
649: $Apache::lonhomework::history{"resource.0.outtoken"}=
650: $token;
651: }
1.343 albertel 652: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 653: }
1.284 albertel 654: if ($env{'form.markaccess'}) {
1.252 albertel 655: &Apache::lonnet::set_first_access('map');
656: }
1.159 albertel 657: #handle rand seed in construction space
658: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 659: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 660: if ($env{'request.state'} ne "construct" &&
661: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 662: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
663: $rndseed.'" />'.
664: '<input type="submit" name="resetdata"
1.334 albertel 665: value="'.&mt('New Problem Variation').'" />';
666: if (exists($env{'form.username'})) {
667: $form_tag_start.=
1.164 albertel 668: '<input type="hidden" name="username"
1.284 albertel 669: value="'.$env{'form.username'}.'" />';
1.334 albertel 670: }
1.333 albertel 671: if ($env{'request.role.adv'}) {
1.267 albertel 672: $form_tag_start.=
1.300 albertel 673: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 674: if (defined($env{'form.showallfoils'})) {
1.267 albertel 675: $form_tag_start.='checked="on"';
676: }
1.300 albertel 677: $form_tag_start.= ' />'.&mt(' Show All Foils').
678: '</label>';
1.267 albertel 679: }
680: $form_tag_start.='<hr />';
1.162 albertel 681: }
1.324 albertel 682:
683: ($status,$accessmsg,my $slot_name,my $slot) =
684: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 685: push (@Apache::inputtags::status,$status);
1.324 albertel 686:
1.159 albertel 687: my $expression='$external::datestatus="'.$status.'";';
688: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
689: &Apache::run::run($expression,$safeeval);
690: &Apache::lonxml::debug("Got $status");
1.324 albertel 691:
1.159 albertel 692: if (( $status eq 'CLOSED' ) ||
693: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 694: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 695: ( $status eq 'BANNED') ||
1.216 albertel 696: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 697: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 698: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 699: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
700: $style);
1.159 albertel 701: if ( $target eq "web" ) {
1.343 albertel 702: my $msg;
1.159 albertel 703: if ($status eq 'UNAVAILABLE') {
1.245 albertel 704: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 705: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 706: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 707: }
1.216 albertel 708: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 709: $msg.='The problem '.$accessmsg;
710: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 711: $msg.=&checkout_msg();
1.252 albertel 712: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 713: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 714: } elsif ($status eq 'NOT_IN_A_SLOT') {
715: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 716: }
717: $result.=$msg.'<br />';
718: } elsif ($target eq 'tex') {
1.332 albertel 719: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
720: : '\begin{minipage}{\textwidth}';
721: $result.='\begin{document}\noindent \vskip 1 mm '.
722: $startminipage.'\vskip 0 mm';
1.159 albertel 723: if ($status eq 'UNAVAILABLE') {
1.211 albertel 724: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 725: } else {
1.211 albertel 726: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 727: }
728: }
1.324 albertel 729: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 730: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
731: $style);
1.324 albertel 732: if ($target eq 'web') {
733: $result .= &Apache::bridgetask::proctor_validation_screen();
734: } elsif ($target eq 'grade') {
735: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
736: 'problem');
737: }
1.159 albertel 738: } elsif ($target eq 'web') {
1.343 albertel 739: $result.="\n $form_tag_start".
1.227 albertel 740: '<input type="hidden" name="submitted" value="yes" />';
741: # create a page header and exit
1.284 albertel 742: if ($env{'request.state'} eq "construct") {
743: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 744: }
745: # if we are viewing someone else preserve that info
1.284 albertel 746: if (defined $env{'form.grade_symb'}) {
1.227 albertel 747: foreach my $field ('symb','courseid','domain','username') {
748: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 749: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 750: }
751: }
752: } elsif ($target eq 'tex') {
1.319 foxr 753: $result .= 'INSERTTEXFRONTMATTERHERE';
754:
1.99 sakharuk 755: }
1.159 albertel 756: } elsif ($target eq 'edit') {
1.343 albertel 757: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 758: $Apache::lonxml::warnings_error_header=
759: &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 760: my $temp=&Apache::edit::insertlist($target,$token);
761: $result.=$temp;
762: } elsif ($target eq 'modified') {
763: $result=$token->[4];
764: $result.=&Apache::edit::handle_insert();
765: } else {
766: # page_start returned a starting result, delete it if we don't need it
767: $result = '';
1.99 sakharuk 768: }
1.159 albertel 769: return $result;
1.9 albertel 770: }
771:
772: sub end_problem {
1.159 albertel 773: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 774: my $result;
1.310 foxr 775:
1.321 albertel 776: if (!$Apache::lonxml::metamode) {
777: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 778: $Apache::lonxml::post_evaluate=0;
1.321 albertel 779: }
1.319 foxr 780:
781: if ($target eq 'tex') {
1.321 albertel 782:
783: # Figure out the front matter and replace the
784: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
785: # this in end_problem because whether or not we display due
786: # dates depends on whether due dates have already been
787: # displayed in the problem parts.
788:
1.319 foxr 789: my $frontmatter = '';
790: my $startminipage = '';
791: if (not $env{'form.problem_split'}=~/yes/) {
792: $startminipage = '\begin{minipage}{\textwidth}';
793: }
794: my $id = $Apache::inputtags::part;
795: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
796: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
797: my @packages = split /,/,$packages;
798: my $allow_print_points = 0;
799: foreach my $partial_key (@packages) {
800: if ($partial_key=~m/^part_0$/) {
801: $allow_print_points=1;
802: }
803: }
804: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
805: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
806: if (lc($env{'course.'.$env{'request.course.id'}.
807: '.disableexampointprint'}) eq 'yes') {
808: $allow_print_points=0;
809: }
810: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
811: 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 ';
812: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
813: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
814:
815: # Figure out what the due date is and if we need to print
816: # it in the problem header. We have been logging the
817: # last due date written to file.
818:
819: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
820: my $duedate = POSIX::strftime("%c",localtime($duetime));
821: my $temp_file;
822: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
823:
824: # Figure out what the last printed due date is or set it
825: # to the epoch if no duedates have been printed.
826:
827: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
828: if (-e $filename) {
829: $temp_file = Apache::File->new($filename);
830: my @due_file = <$temp_file>;
831: $due_file_content = $due_file[$#due_file];
832: chomp $due_file_content;
833: }
834:
835: # We display the due date iff it is not the same as the last
836: # duedate in problem header ($due_file_content), and
837: # none of our parts displayed a duedate.
838: #
839: my $parts_with_displayduedate;
840: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
841: $parts_with_displayduedate =
842: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
843: } else {
844: $parts_with_displayduedate = 0;
845: }
846: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
847: $temp_file = Apache::File->new('>'.$filename);
848: print $temp_file "$duetime\n";
849: if (not $env{'request.symb'} =~ m/\.page_/) {
850: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
851: $frontmatter .= $begin_doc.
852: '\textit{Due date: '.$duedate.'} '.$toc_line;
853: } else {
854: $frontmatter.= $begin_doc.$toc_line;
855: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
856: }
857: } else {
858: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
859: }
860: } else {
861: if (not $env{'request.symb'} =~ m/\.page_/) {
862: $frontmatter .= $begin_doc.$toc_line;
863: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
864: } else {
865: $frontmatter .= '\vskip 1mm \\\\\\\\';
866: }
867: }
868: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
869: }
870:
1.159 albertel 871: my $status=$Apache::inputtags::status['-1'];
872: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
873: $target eq 'tex') {
1.249 albertel 874: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 875: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 876: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
877: &Apache::inputtags::grade;
1.324 albertel 878: } elsif ($status eq 'NEEDS_CHECKIN') {
879: # no need to grade, and don't want to hide data
1.249 albertel 880: } else {
881: # move any submission data to .hidden
882: &Apache::inputtags::hidealldata($Apache::inputtags::part);
883: }
1.159 albertel 884: } elsif ( ($target eq 'web' || $target eq 'tex') &&
885: $Apache::inputtags::part eq '0' &&
1.252 albertel 886: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 887: # if part is zero, no <part>s existed, so we need show the current
888: # grading status
889: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
890: $result.= $gradestatus;
891: }
892: if (
1.284 albertel 893: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 894: ($target eq 'answer') || ($target eq 'tex')
895: ) {
1.227 albertel 896: if ($target ne 'tex' &&
1.284 albertel 897: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 898: $result.="</form>";
1.348 albertel 899: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 900: }
901: if ($target eq 'web') {
1.346 albertel 902: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 903: } elsif ($target eq 'tex') {
1.178 sakharuk 904: my $endminipage = '';
1.284 albertel 905: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 906: $endminipage = '\end{minipage}';
907: }
1.284 albertel 908: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 909: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 910: } else {
1.262 sakharuk 911: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 912: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 913: $result .= $endminipage.'\end{document} ';
914: } else {
915: $result .= '';
916: }
1.159 albertel 917: }
918: }
919: }
920: if ($target eq 'grade') {
921: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
922: &finalize_storage();
923: }
1.284 albertel 924: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
925: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 926: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 927: # normally we get it from above, but in CSTR
1.172 albertel 928: # we always show answer mode too.
1.159 albertel 929: }
930: } elsif ($target eq 'meta') {
931: if ($Apache::inputtags::part eq '0') {
1.179 albertel 932: @Apache::inputtags::response=();
1.159 albertel 933: $result=&Apache::response::mandatory_part_meta;
934: }
1.215 albertel 935: $result.=&Apache::response::meta_part_order();
1.258 albertel 936: $result.=&Apache::response::meta_response_order();
1.159 albertel 937: } elsif ($target eq 'edit') {
938: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 939: $result .= &problem_edit_footer();
1.320 albertel 940: } elsif ($target eq 'modified') {
941: $result .= $token->[2];
942: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 943: }
1.155 albertel 944:
1.284 albertel 945: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 946: &Apache::inputtags::check_for_duplicate_ids();
947: }
1.204 albertel 948:
949: &reset_problem_globals('problem');
1.159 albertel 950:
951: return $result;
1.48 albertel 952: }
953:
1.108 albertel 954:
1.48 albertel 955: sub start_library {
1.159 albertel 956: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 957: my ($result,$form_tag_start);
1.244 albertel 958: if ($$tagstack[0] eq 'library') {
959: &init_problem_globals('library');
960: $Apache::lonhomework::type='problem';
961: }
1.159 albertel 962: if ($target eq 'edit') {
1.343 albertel 963: ($result,$form_tag_start)=
964: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
965: 'Edit');
966: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 967: my $temp=&Apache::edit::insertlist($target,$token);
968: $result.=$temp;
969: } elsif ($target eq 'modified') {
970: $result=$token->[4];
971: $result.=&Apache::edit::handle_insert();
1.340 albertel 972: } elsif (($target eq 'web' || $target eq 'webgrade')
973: && $$tagstack[0] eq 'library'
974: && $env{'request.state'} eq "construct" ) {
1.159 albertel 975: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 976: ($result,$form_tag_start)=
977: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
978: $name);
1.159 albertel 979: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 980: $result.=" \n $form_tag_start".
1.159 albertel 981: '<input type="hidden" name="submitted" value="yes" />';
982: $result.=&problem_web_to_edit_header($rndseed);
983: }
984: return $result;
1.48 albertel 985: }
986:
987: sub end_library {
1.159 albertel 988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
989: my $result='';
990: if ($target eq 'edit') {
991: $result=&problem_edit_footer();
992: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 993: $env{'request.state'} eq "construct") {
1.349 albertel 994: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 995: }
1.204 albertel 996: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 997: return $result;
1.197 www 998: }
999:
1000: sub start_definetag {
1.326 albertel 1001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1002:
1003: my $result;
1004:
1005: my $name = $token->[2]->{'name'};
1.326 albertel 1006: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1007: if ($name=~/^\//) {
1008: $result=
1009: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1010: } else {
1011: $result=
1012: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1013: }
1014: $skip=~s/\</\<\;/gs;
1015: $skip=~s/\>/\>\;/gs;
1016: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1017: return $result;
1018: }
1019:
1020: sub end_definetag {
1021: return '';
1.1 albertel 1022: }
1023:
1024: sub start_block {
1.201 albertel 1025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1026:
1027: my $result;
1.1 albertel 1028:
1.339 albertel 1029: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1030: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1031: my $code = $token->[2]->{'condition'};
1.201 albertel 1032: if (defined($code)) {
1.137 albertel 1033: if (!$Apache::lonxml::default_homework_loaded) {
1034: &Apache::lonxml::default_homework_load($safeeval);
1035: }
1.131 albertel 1036: $result = &Apache::run::run($code,$safeeval);
1037: &Apache::lonxml::debug("block :$code: returned :$result:");
1038: } else {
1039: $result='1';
1040: }
1041: if ( ! $result ) {
1.201 albertel 1042: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1043: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1044: }
1045: $result='';
1046: } elsif ($target eq 'edit') {
1047: $result .=&Apache::edit::tag_start($target,$token);
1048: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1049: $token,40);
1050: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1051: } elsif ($target eq 'modified') {
1052: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1053: $safeeval,'condition');
1054: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1055: }
1.131 albertel 1056: return $result;
1.1 albertel 1057: }
1058:
1059: sub end_block {
1.167 www 1060: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1061: my $result;
1062: if ($target eq "edit") {
1063: $result.= &Apache::edit::tag_end($target,$token,'');
1064: }
1065: return $result;
1066: }
1067:
1068: sub start_languageblock {
1.201 albertel 1069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1070:
1071: my $result;
1072:
1.339 albertel 1073: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1074: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1075: my $include = $token->[2]->{'include'};
1076: my $exclude = $token->[2]->{'exclude'};
1077: my %languages=&Apache::loncommon::display_languages();
1078: $result='1';
1079: if ($include) {
1080: $result='';
1081: foreach (split(/\,/,$include)) {
1082: if ($languages{$_}) { $result='1'; }
1083: }
1084: }
1085: if ($exclude) {
1086: foreach (split(/\,/,$exclude)) {
1087: if ($languages{$_}) { $result='0'; }
1088: }
1089: }
1090: if ( ! $result ) {
1091: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1092: $style);
1093: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1094: }
1095: $result='';
1.167 www 1096: } elsif ($target eq 'edit') {
1097: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1098: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1099: $token,40);
1.211 albertel 1100: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1101: $token,40);
1102: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1103: } elsif ($target eq 'modified') {
1104: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1105: $safeeval,'include',
1106: 'exclude');
1.167 www 1107: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1108: }
1109: return $result;
1110: }
1111:
1112: sub end_languageblock {
1.170 www 1113: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1114: my $result;
1.201 albertel 1115: if ($target eq "edit") {
1.170 www 1116: $result.= &Apache::edit::tag_end($target,$token,'');
1117: }
1118: return $result;
1119: }
1120:
1121: sub start_instructorcomment {
1.201 albertel 1122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1123:
1124: my $result;
1125:
1.339 albertel 1126: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1127: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1128: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1129: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1130: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1131: $parser,$style);
1.170 www 1132: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1133: }
1134: $result='';
1135: } elsif ($target eq 'edit') {
1136: $result .=&Apache::edit::tag_start($target,$token);
1137: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1138: }
1139: return $result;
1140: }
1141:
1142: sub end_instructorcomment {
1.159 albertel 1143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1144: my $result;
1145: if ($target eq "edit") {
1146: $result.= &Apache::edit::tag_end($target,$token,'');
1147: }
1148: return $result;
1.4 tsai 1149: }
1150:
1151: sub start_while {
1.326 albertel 1152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1153:
1.160 albertel 1154: my $result;
1.339 albertel 1155: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1156: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1157: my $code = $token->[2]->{'condition'};
1.4 tsai 1158:
1.160 albertel 1159: push( @Apache::structuretags::whileconds, $code);
1160: if (!$Apache::lonxml::default_homework_loaded) {
1161: &Apache::lonxml::default_homework_load($safeeval);
1162: }
1163: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1164: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1165: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1166: push( @Apache::structuretags::whileline, $token->[5]);
1167: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1168: if ( $result ) {
1169: &Apache::lonxml::newparser($parser,\$bodytext);
1170: }
1171: } elsif ($target eq 'edit') {
1172: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1173: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1174: $token,40);
1175: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1176: } elsif ($target eq 'modified') {
1177: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1178: $safeeval,'condition');
1179: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1180: }
1.160 albertel 1181: return $result;
1.4 tsai 1182: }
1183:
1184: sub end_while {
1.159 albertel 1185: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1186: my $result;
1187:
1.339 albertel 1188: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1189: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1190: my $code = pop(@Apache::structuretags::whileconds);
1191: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1192: my $line = pop(@Apache::structuretags::whileline);
1193: my $return = &Apache::run::run($code,$safeeval);
1194: my $starttime=time;
1195: my $error=0;
1196: while ($return) {
1197: if (time-$starttime >
1198: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1199: #$return = 0; $error=1; next;
1.161 albertel 1200: }
1201: $result.=&Apache::scripttag::xmlparse($bodytext);
1202: $return = &Apache::run::run($code,$safeeval);
1203: }
1204: if ($error) {
1.270 albertel 1205: &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 1206: }
1207: } elsif ($target eq "edit") {
1208: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1209: }
1.160 albertel 1210: return $result;
1.1 albertel 1211: }
1.6 tsai 1212:
1.160 albertel 1213: # <randomlist show="1">
1.6 tsai 1214: # <tag1>..</tag1>
1215: # <tag2>..</tag2>
1216: # <tag3>..</tag3>
1.160 albertel 1217: # ...
1.6 tsai 1218: # </randomlist>
1219: sub start_randomlist {
1.326 albertel 1220: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1221: my $result;
1.339 albertel 1222: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1223: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1224: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1225: my $b_parser= HTML::LCParser->new(\$body);
1226: $b_parser->xml_mode(1);
1227: $b_parser->marked_sections(1);
1.159 albertel 1228: my $b_tok;
1229: my @randomlist;
1230: my $list_item;
1231: while($b_tok = $b_parser->get_token() ) {
1232: if($b_tok->[0] eq 'S') { # start tag
1233: # get content of the tag until matching end tag
1234: # get all text upto the matching tag
1235: # and push the content into @randomlist
1236: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1237: $b_parser);
1238: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1239: push(@randomlist,$list_item);
1240: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1241: # $list_item</b>";
1242: }
1243: if($b_tok->[0] eq 'T') { # text
1244: # what to do with text in between tags?
1245: # print "<b>TEXT $b_tok->[1]</b><br />";
1246: }
1247: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1248: # print "<b>END-TAG $b_tok->[1]</b><br />";
1249: # }
1250: }
1.303 albertel 1251: if (@randomlist) {
1252: my @idx_arr = (0 .. $#randomlist);
1253: &Apache::structuretags::shuffle(\@idx_arr);
1254: my $bodytext = '';
1255: my $show=$#randomlist;
1256: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1257: $showarg--;
1258: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1259: for(0 .. $show) {
1260: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1261: }
1262: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1263: }
1264: } elsif ($target eq 'edit' ) {
1265: $result .=&Apache::edit::tag_start($target,$token);
1266: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1267: $token,5);
1268: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1269: } elsif ($target eq 'modified' ) {
1270: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1271: $safeeval,'show');
1272: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1273: }
1274: return $result;
1.7 tsai 1275: }
1276:
1277: sub shuffle {
1278: my $a=shift;
1279: my $i;
1.303 albertel 1280: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1281: &Apache::response::pushrandomnumber();
1.159 albertel 1282: for($i=@$a;--$i;) {
1283: my $j=int(&Math::Random::random_uniform() * ($i+1));
1284: next if $i == $j;
1285: @$a[$i,$j] = @$a[$j,$i];
1286: }
1.251 albertel 1287: &Apache::response::poprandomnumber();
1.7 tsai 1288: }
1.6 tsai 1289: }
1290:
1291: sub end_randomlist {
1.159 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1293: my $result;
1294: if ($target eq 'edit' ) {
1295: $result=&Apache::edit::tag_end($target,$token,
1296: 'End Randomly Parsed Block');
1297: }
1298: return $result;
1.6 tsai 1299: }
1300:
1.283 albertel 1301: sub ordered_show_check {
1302: my $last_part=$Apache::inputtags::partlist[-2];
1303: my $in_order=
1304: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1305: my $in_order_show=1;
1306: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1307: $in_order_show=&Apache::response::check_status($last_part);
1308: }
1309: return $in_order_show;
1310: }
1311:
1.11 albertel 1312: sub start_part {
1.326 albertel 1313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1314: if (!$Apache::lonxml::metamode) {
1315: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1316: # duedates.
1317: }
1.159 albertel 1318: my $result='';
1319: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1320: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1321: $Apache::inputtags::part=$id;
1.177 albertel 1322: push(@Apache::inputtags::partlist,$id);
1323: @Apache::inputtags::response=();
1.159 albertel 1324: @Apache::inputtags::previous=();
1325: @Apache::inputtags::previous_version=();
1.241 albertel 1326: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1327: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1328: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1329: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1330: my $in_order_show=&ordered_show_check();
1.214 albertel 1331: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1332: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1333: &Apache::run::run($expression,$safeeval);
1.159 albertel 1334:
1335: if ($target eq 'meta') {
1.224 www 1336: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1337: return &Apache::response::mandatory_part_meta.
1338: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1339: } elsif ($target eq 'web' || $target eq 'grade' ||
1340: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1341: if ($hidden || !$in_order_show) {
1.326 albertel 1342: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1343: } else {
1344: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1345: push (@Apache::inputtags::status,$status);
1346: my $expression='$external::datestatus="'.$status.'";';
1347: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1348: &Apache::run::run($expression,$safeeval);
1.284 albertel 1349: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1350: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1351: }
1.216 albertel 1352: if (( $status eq 'CLOSED' ) ||
1353: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1354: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1355: ( $status eq 'BANNED') ||
1356: ( $status eq 'UNAVAILABLE') ||
1357: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1358: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1359: $style);
1.159 albertel 1360: if ( $target eq "web" ) {
1.211 albertel 1361: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1362: } elsif ( $target eq 'tex' ) {
1.284 albertel 1363: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1364: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1365: } else {
1.211 albertel 1366: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1367: }
1.159 albertel 1368: }
1369: } else {
1370: if ($target eq 'tex') {
1.284 albertel 1371: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1372: if ($$tagstack[-2] eq 'td') {
1373: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1374: } else {
1375: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1376: }
1.195 sakharuk 1377: }
1.159 albertel 1378: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1379: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1380: my @allkeys = split /,/,$allkeys;
1381: my $allow_print_points = 0;
1382: foreach my $partial_key (@allkeys) {
1.230 albertel 1383: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1384: if ($1 ne '0') {$allow_print_points=1;}
1385: }
1386: }
1.275 albertel 1387: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1388: if (defined($maxtries) && $maxtries < 0) {
1389: $allow_print_points=0;
1390: }
1.302 albertel 1391: if (lc($env{'course.'.$env{'request.course.id'}.
1392: '.disableexampointprint'}) eq 'yes') {
1393: $allow_print_points=0;
1394: }
1.222 sakharuk 1395: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1396: } elsif ($target eq 'web') {
1.356 www 1397: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1398: }
1399: }
1400: }
1401: } elsif ($target eq 'edit') {
1402: $result.=&Apache::edit::tag_start($target,$token);
1403: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1404: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1405: ' '.
1406: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1407: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1408: } elsif ($target eq 'modified') {
1409: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1410: $safeeval,'id','display');
1.159 albertel 1411: if ($constructtag) {
1.225 albertel 1412: #limiting ids to only letters numbers, and space
1.224 www 1413: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1414: $result = &Apache::edit::rebuild_tag($token);
1415: $result.=&Apache::edit::handle_insert();
1416: }
1417: }
1418: return $result;
1.11 albertel 1419: }
1420:
1421: sub end_part {
1.159 albertel 1422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1423: &Apache::lonxml::debug("in end_part $target ");
1424: my $status=$Apache::inputtags::status['-1'];
1425: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1426: my $in_order_show=&ordered_show_check();
1.321 albertel 1427: my $result;
1428: if (!$Apache::lonxml::metamode) {
1429: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1430: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1431: }
1.312 albertel 1432: if ($target eq 'grade') {
1.249 albertel 1433: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1434: !$hidden && $in_order_show) {
1.311 foxr 1435: $result.=&Apache::inputtags::grade;
1.249 albertel 1436: } else {
1437: # move any submission data to .hidden
1438: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1439: }
1.283 albertel 1440: } elsif (($target eq 'web' || $target eq 'tex') &&
1441: !$hidden && $in_order_show) {
1.159 albertel 1442: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1443: $target);
1.212 albertel 1444: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1445: $gradestatus='';
1446: }
1.311 foxr 1447: $result.=$gradestatus;
1.265 sakharuk 1448: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1449: } elsif ($target eq 'edit') {
1.311 foxr 1450: $result.=&Apache::edit::end_table();
1.322 albertel 1451: } elsif ($target eq 'modified') {
1452: $result .= $token->[2];
1453: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1454: }
1455: pop @Apache::inputtags::status;
1456: $Apache::inputtags::part='';
1.295 albertel 1457: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1458: return $result;
1.11 albertel 1459: }
1.1 albertel 1460:
1.25 albertel 1461: sub start_preduedate {
1.326 albertel 1462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1463: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1464: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1465: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1466: if (!$Apache::lonhomework::scantronmode &&
1467: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1468: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1469: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1470: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1471: }
1.24 albertel 1472: }
1.159 albertel 1473: return '';
1.24 albertel 1474: }
1475:
1.25 albertel 1476: sub end_preduedate {
1.159 albertel 1477: return '';
1.24 albertel 1478: }
1479:
1.25 albertel 1480: sub start_postanswerdate {
1.326 albertel 1481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1482: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1483: if ($Apache::lonhomework::scantronmode ||
1484: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1485: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1486: }
1487: } elsif ($target eq 'tex') {
1.326 albertel 1488: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1489: }
1490: return '';
1.24 albertel 1491: }
1492:
1.25 albertel 1493: sub end_postanswerdate {
1.159 albertel 1494: return '';
1.24 albertel 1495: }
1496:
1.25 albertel 1497: sub start_notsolved {
1.326 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1499: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1500: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1501: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1502: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1503: if ($gradestatus =~ /^correct/ &&
1504: &Apache::response::show_answer()) {
1.159 albertel 1505: &Apache::lonxml::debug("skipping");
1.326 albertel 1506: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1507: }
1.24 albertel 1508: }
1.159 albertel 1509: return '';
1.24 albertel 1510: }
1511:
1.25 albertel 1512: sub end_notsolved {
1.159 albertel 1513: return '';
1.24 albertel 1514: }
1515:
1516: sub start_solved {
1.326 albertel 1517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1518: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1519: $target eq 'tex') {
1520: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1521: if ($gradestatus !~ /^correct/ ||
1522: !&Apache::response::show_answer()) {
1.326 albertel 1523: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1524: }
1.24 albertel 1525: }
1.159 albertel 1526: return '';
1.24 albertel 1527: }
1528:
1529: sub end_solved {
1.248 albertel 1530: return '';
1531: }
1532:
1533: sub start_problemtype {
1.326 albertel 1534: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1535: my $result;
1.339 albertel 1536: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1537: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1538: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1539: if (!defined($mode)) { $mode='show'; }
1540: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1541: my $found=0;
1542: foreach my $type (split(',',$for)) {
1543: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1544: }
1545: if ($mode eq 'show' && !$found) {
1.326 albertel 1546: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1547: }
1548: if ($mode eq 'hide' && $found) {
1.326 albertel 1549: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1550: }
1551: } elsif ($target eq 'edit') {
1552: $result .=&Apache::edit::tag_start($target,$token);
1553: $result.=&Apache::edit::select_arg('Mode:','mode',
1554: [['show','Show'],
1555: ['hide','Hide']]
1556: ,$token);
1557: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1558: [ ['exam','Exam/Quiz Problem'],
1559: ['survey','Survey'],
1560: ['problem','Homework Problem'] ]
1561: ,$token);
1562: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1563: } elsif ($target eq 'modified') {
1564: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1565: $safeeval,'mode','for');
1566: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1567: }
1568: return $result;
1569: }
1570:
1571: sub end_problemtype {
1.159 albertel 1572: return '';
1.24 albertel 1573: }
1.34 albertel 1574:
1575: sub start_startouttext {
1.159 albertel 1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1577: my @result=(''.'');
1578: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1579: return (@result);
1.34 albertel 1580: }
1.159 albertel 1581:
1.34 albertel 1582: sub end_startouttext {
1.326 albertel 1583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1584: my $result='';
1585: my $text='';
1586:
1587: if ($target eq 'edit') {
1.326 albertel 1588: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1589: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1590: <td>".&mt('Delete:').
1.159 albertel 1591: &Apache::edit::deletelist($target,$token)
1592: ."</td>
1.42 albertel 1593: <td>".
1.159 albertel 1594: &Apache::edit::insertlist($target,$token).
1595: &Apache::edit::end_row().
1596: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1597: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1598: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1599: }
1600: if ($target eq 'modified') {
1.219 albertel 1601: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1602: }
1603: if ($target eq 'tex') {
1604: $result .= '\noindent ';
1605: }
1606: return $result;
1.34 albertel 1607: }
1.159 albertel 1608:
1.34 albertel 1609: sub start_endouttext {
1.159 albertel 1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1611: my $result='';
1612: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1613: if ($target eq "modified") {
1614: $result='<endouttext />'.
1615: &Apache::edit::handle_insertafter('startouttext'); }
1616: return $result;
1.34 albertel 1617: }
1.159 albertel 1618:
1.34 albertel 1619: sub end_endouttext {
1.159 albertel 1620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1621: my @result=('','');
1622: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1623: return (@result);
1.34 albertel 1624: }
1.159 albertel 1625:
1.45 albertel 1626: sub delete_startouttext {
1.326 albertel 1627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1628: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1629: my $text=$$parser['-1']->get_text("/endouttext");
1630: my $ntoken=$$parser['-1']->get_token();
1631: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1632: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1633: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1634: # they did the last time round
1635: &Apache::lonxml::increasedepth($ntoken);
1636: &Apache::lonxml::decreasedepth($ntoken);
1637: return 1;
1.193 www 1638: }
1639:
1640: sub start_simpleeditbutton {
1641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1642: my $result='';
1.284 albertel 1643: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1644: ($target eq 'web') &&
1.330 albertel 1645: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1646: my $url=$env{'request.noversionuri'};
1.193 www 1647: $url=~s/\?.*$//;
1.278 albertel 1648: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1649: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1650: '<a href="'.$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 1651: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1652: }
1653: return $result;
1654: }
1655:
1656: sub end_simpleeditbutton {
1657: return '';
1.45 albertel 1658: }
1.34 albertel 1659:
1.1 albertel 1660: 1;
1661: __END__
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