Annotation of loncom/homework/structuretags.pm, revision 1.343
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.343 ! albertel 4: # $Id: structuretags.pm,v 1.342 2006/04/13 18:35:06 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 );
1.78 harris41 41: BEGIN {
1.248 albertel 42: &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 43: }
44:
45: sub start_web {
1.326 albertel 46: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
47: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 48: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 49: return $bodytext;
1.159 albertel 50: }
51: return '';
1.10 albertel 52: }
53:
54: sub end_web {
1.44 ng 55: return '';
1.10 albertel 56: }
57:
58: sub start_tex {
1.326 albertel 59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 60: my $result='';
1.326 albertel 61: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 62: if ($target eq 'tex') {
63: return $bodytext.' ';
1.159 albertel 64: }
1.198 sakharuk 65: return $result;;
1.10 albertel 66: }
67:
68: sub end_tex {
1.44 ng 69: return '';
1.9 albertel 70: }
71:
1.48 albertel 72: sub page_start {
1.343 ! albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name)=@_;
1.159 albertel 74: my %found;
1.207 albertel 75: foreach my $taginside (@$tagstack) {
1.159 albertel 76: foreach my $taglookedfor ('html','body','form') {
77: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
78: }
79: }
80:
1.343 ! albertel 81:
! 82: if ($target eq 'tex') {
! 83: return
! 84: &Apache::londefdef::start_html($target,$token,$tagstack,
! 85: $parstack,$parser,$safeeval);
! 86: }
! 87:
! 88: my $page_start;
1.159 albertel 89: if (!defined($found{'html'})) {
1.343 ! albertel 90:
! 91: my $extra_head = &Apache::lonhtmlcommon::spellheader();
! 92:
1.336 albertel 93: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 94: if ($css_href =~ /\S/) {
95: &Apache::lonxml::extlink($css_href);
1.343 ! albertel 96: $extra_head .=
1.335 albertel 97: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
98: }
1.327 albertel 99: if ($target eq 'edit') {
1.343 ! albertel 100: $extra_head.=&Apache::edit::js_change_detection().
! 101: "<script type=\"text/javascript\">\n".
! 102: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
! 103: &Apache::loncommon::browser_and_searcher_javascript().
! 104: "\n</script>\n";
! 105:
! 106: }
! 107: $page_start .=
! 108: &Apache::loncommon::head($name,$extra_head,
! 109: {'force_register' =>
! 110: ($target ne 'edit') });
1.159 albertel 111: }
1.343 ! albertel 112:
1.318 albertel 113: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
1.343 ! albertel 114: if ($target eq 'web' || $target eq 'edit') {
! 115: $page_start.=&Apache::loncommon::bodytag();
! 116: $page_start.=&Apache::lonxml::message_location();
1.297 albertel 117: }
1.272 albertel 118: } elsif (!defined($found{'body'})) {
1.343 ! albertel 119: my %add_entries;
1.159 albertel 120: my $background=&Apache::lonxml::get_param('background',$parstack,
121: $safeeval);
1.343 ! albertel 122: if ($background ne '' ) {
! 123: $add_entries{'background'} = $background;
! 124: }
1.290 albertel 125: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
126: $safeeval);
1.343 ! albertel 127:
! 128: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
! 129: $page_start .=
! 130: &Apache::loncommon::bodytag(undef,undef,\%add_entries,undef,undef,
! 131: 1,undef,undef,$bgcolor,$target,1);
! 132:
1.291 albertel 133: if ( ($target eq 'web' || $target eq 'webgrade')
134: && $env{'request.state'} ne 'construct') {
1.165 albertel 135: my ($symb,undef,undef,undef,$publicuser)=
136: &Apache::lonxml::whichuser();
137: if ($symb eq '' && !$publicuser) {
1.159 albertel 138: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 139: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.343 ! albertel 140: $page_start .= $help;
1.159 albertel 141: }
142: }
1.343 ! albertel 143: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 144: }
1.343 ! albertel 145:
1.159 albertel 146: my $form_tag_start;
147: if (!defined($found{'form'})) {
1.337 albertel 148: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 149: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 150: $form_tag_start.=$uri.'" ';
151: if ($target eq 'edit') {
152: $form_tag_start.=&Apache::edit::form_change_detection();
153: }
154: $form_tag_start.='>';
1.159 albertel 155: }
1.343 ! albertel 156: return ($page_start,$form_tag_start);
1.105 albertel 157: }
158:
1.141 matthew 159: #use Time::HiRes();
1.105 albertel 160: sub get_resource_name {
1.159 albertel 161: my ($parstack,$safeeval)=@_;
1.204 albertel 162: if (defined($Apache::lonhomework::name)) {
163: return $Apache::lonhomework::name;
164: }
1.279 albertel 165: my ($symb)=&Apache::lonxml::whichuser();
166: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 167: if ($name eq '') {
168: $name=&Apache::lonnet::EXT('resource.title');
169: if ($name eq 'con_lost') { $name = ''; }
170: }
1.204 albertel 171: if ($name!~/\S+/) {
1.284 albertel 172: $name=$env{'request.uri'};
1.205 albertel 173: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 174: }
1.159 albertel 175: $Apache::lonhomework::name=$name;
176: return $name;
1.105 albertel 177: }
178:
179: sub setup_rndseed {
1.159 albertel 180: my ($safeeval)=@_;
181: my $rndseed;
1.162 albertel 182: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 183: if ($env{'request.state'} eq "construct"
184: || $symb eq ''
185: || $Apache::lonhomework::type eq 'practice'
186: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 187: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 188: ['rndseed']);
1.284 albertel 189: $rndseed=$env{'form.rndseed'};
1.159 albertel 190: if (!$rndseed) {
1.162 albertel 191: $rndseed=$Apache::lonhomework::history{'rndseed'};
192: if (!$rndseed) {
193: $rndseed=time;
194: }
1.284 albertel 195: $env{'form.rndseed'}=$rndseed;
1.162 albertel 196: }
1.284 albertel 197: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
198: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 199: srand(time);
200: $rndseed=int(rand(2100000000));
1.284 albertel 201: $env{'form.rndseed'}=$rndseed;
202: delete($env{'form.resetdata'});
203: delete($env{'form.newrandomization'});
1.159 albertel 204: }
1.187 albertel 205: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 206: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 207: }
1.247 albertel 208: if ($Apache::lonhomework::history{'resource.CODE'}) {
209: $rndseed=&Apache::lonnet::rndseed();
210: }
1.221 albertel 211: if ($safeeval) {
212: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 213: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 214: }
1.159 albertel 215: }
216: return $rndseed;
1.105 albertel 217: }
218:
1.268 albertel 219: sub remember_problem_state {
220: return '
1.284 albertel 221: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
222: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
223: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 224: }
225:
1.105 albertel 226: sub problem_edit_header {
1.268 albertel 227: return '<input type="hidden" name="submitted" value="edit" />'.
228: &Apache::structuretags::remember_problem_state().'
1.210 albertel 229: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 230: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 231: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 232: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
233: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
234: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 235: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
236: .'</td></tr></table>'.
1.282 albertel 237: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 238: }
239:
240: sub problem_edit_footer {
1.210 albertel 241: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 242: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
243: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.342 albertel 244: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 245: }
246:
1.235 albertel 247: sub option {
248: my ($value,$name) = @_;
249: my $result ="<option value='".$value."' ";
1.284 albertel 250: if ($env{'form.'.$name} eq $value) {
1.235 albertel 251: $result.=" selected='on' ";
252: }
253: $result.='>';
254: return $result;
255: }
256:
1.105 albertel 257: sub problem_web_to_edit_header {
1.159 albertel 258: my ($rndseed)=@_;
1.313 albertel 259: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
260: if (!$Apache::lonhomework::parsing_a_task) {
261: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
262: }
263: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 264: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
265: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 266: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 267: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 268: $rndseed.'"
1.270 albertel 269: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 270: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 271: my $show_all_foils_text =
272: ($Apache::lonhomework::parsing_a_task) ?
273: &mt(' Show All Instances')
274: : &mt(' Show All Foils');
275:
1.284 albertel 276: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 277: $result.= ' />'.$show_all_foils_text.
1.228 www 278: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 279: '</label><hr />';
1.313 albertel 280: if (!$Apache::lonhomework::parsing_a_task) {
281: $result.="
1.235 albertel 282: <nobr>
283: Problem Status:
284: <select name='problemstate'>
1.270 albertel 285: <option value=''></option>
1.235 albertel 286: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
287: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
288: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
289: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
290: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
291: </select>
292: </nobr>
293: <nobr>
294: Problem Type:
295: <select name='problemtype'>
1.270 albertel 296: <option value=''></option>
1.242 albertel 297: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
298: ".&option('problem','problemtype').&mt("Homework problem")."</option>
299: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 300: </select>
301: </nobr>
302: <nobr>
303: Feedback Mode:
304: <select name='problemstatus'>
305: <option value=''></option>
1.242 albertel 306: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
307: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 308: </select>
309: </nobr>
1.242 albertel 310: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 311: <hr />";
1.313 albertel 312: my $numtoanalyze=$env{'form.numtoanalyze'};
313: if (!$numtoanalyze) { $numtoanalyze=20; }
314: $result.= '<input type="submit" name="problemmode" value='.
315: &mt('"Calculate answers').'" /> for
1.136 albertel 316: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 317: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
318: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 319: '',undef,undef,300).
1.210 albertel 320: '<hr />';
1.313 albertel 321: }
1.159 albertel 322: return $result;
1.48 albertel 323: }
324:
1.65 albertel 325: sub initialize_storage {
1.159 albertel 326: %Apache::lonhomework::results=();
1.162 albertel 327: %Apache::lonhomework::history=();
1.159 albertel 328: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 329: if ($env{'request.state'} eq 'construct'
330: || $symb eq ''
331: || $Apache::lonhomework::type eq 'practice') {
332:
333: my $namespace = $symb || $env{'request.uri'};
334: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
335: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
336: $env{'form.newrandomization'} eq &mt('New Randomization')) {
337: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
338: &Apache::lonxml::debug("Attempt reset");
339: }
1.159 albertel 340: %Apache::lonhomework::history=
1.333 albertel 341: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 342: my ($temp)=keys %Apache::lonhomework::history ;
343: &Apache::lonxml::debug("Return message of $temp");
344: } else {
345: %Apache::lonhomework::history=
346: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
347: }
348: #ignore error conditions
1.67 albertel 349: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 350: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 351: }
352:
353: # -------------------------------------------------------------finalize_storage
354: # Stores away the result has to a student's environment
355: # checks form.grade_ for specific values, other wises stores
356: # to the running users environment
1.285 raeburn 357: # Will increment totals for attempts, students, and corrects
358: # if running user has student role.
1.65 albertel 359: sub finalize_storage {
1.159 albertel 360: my $result;
1.289 albertel 361: if (%Apache::lonhomework::results) {
1.323 albertel 362: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
363: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 364: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 365: if ($env{'request.state'} eq 'construct'
366: || $symb eq ''
367: || $Apache::lonhomework::type eq 'practice') {
368: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 369: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 370: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 371: $namespace,'',$domain,$name);
1.159 albertel 372: &Apache::lonxml::debug('Construct Store return message:'.$result);
373: } else {
374: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
375: $symb,$courseid,$domain,$name);
376: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 377: if ($env{'request.role'} =~/^st/) {
378: &store_aggregates($symb,$courseid);
379: }
1.159 albertel 380: }
1.323 albertel 381: } else {
382: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 383: }
1.159 albertel 384: return $result;
1.65 albertel 385: }
1.289 albertel 386: use Data::Dumper;
1.65 albertel 387:
1.285 raeburn 388: # -------------------------------------------------------------store_aggregates
389: # Sends hash of values to be incremented in nohist_resourcetracker.db
390: # for the course. Increments total number of attempts, unique students
391: # and corrects for each part for an instance of a problem, as appropriate.
392: sub store_aggregates {
393: my ($symb,$courseid) = @_;
1.286 albertel 394: my %aggregate;
395: my @parts;
1.288 albertel 396: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
397: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 398: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 399: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 400: push(@parts, $1);
1.285 raeburn 401: }
402: }
1.286 albertel 403: foreach my $part (@parts) {
404: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
405: eq 'APPROX_ANS' ||
406: $Apache::lonhomework::results{'resource.'.$part.'.award'}
407: eq 'EXACT_ANS') {
1.287 albertel 408: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 409: }
1.286 albertel 410: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 411: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 412: } else {
1.293 albertel 413: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 414: if ($last_reset) {
1.293 albertel 415: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 416: $aggregate{$symb."\0".$part."\0users"} = 1;
417: }
418: }
1.285 raeburn 419: }
1.287 albertel 420: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 421: }
1.292 raeburn 422: if (keys (%aggregate) > 0) {
1.289 albertel 423: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 424: $cdomain,$cname);
425: }
426: }
1.289 albertel 427:
1.65 albertel 428: sub checkout_msg {
1.211 albertel 429: my %lt=&Apache::lonlocal::texthash(
430: 'resource'=>'The resource needs to be checked out',
431: '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.',
432: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
433: 'checkout'=>'Check out Exam for Viewing',
434: 'checkout?'=>'Check out Exam?');
1.159 albertel 435: return (<<ENDCHECKOUT);
1.211 albertel 436: <h2>$lt{'resource'}</h2>
437: <p>$lt{'id_expln'}</p>
438: <font color="red">
439: <p>$lt{'warning'}</p>
1.91 albertel 440: </font>
1.284 albertel 441: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 442: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 443: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 444: </form>
445: ENDCHECKOUT
446: }
447:
1.252 albertel 448: sub firstaccess_msg {
1.253 albertel 449: my ($time,$symb)=@_;
450: my ($map)=&Apache::lonnet::decode_symb($symb);
451: my $foldertitle=&Apache::lonnet::gettitle($map);
452: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 453: return (<<ENDCHECKOUT);
1.253 albertel 454: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.284 albertel 455: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 456: <input type="hidden" name="markaccess" value="yes" />
457: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
458: </form>
459: ENDCHECKOUT
460: }
461:
1.204 albertel 462: sub init_problem_globals {
463: my ($type)=@_;
464: #initialize globals
1.308 foxr 465: # For problems, we start out in part 0 (outside a <part> tag).
466: # and part 0 is used to describe the main body of the <problem>
467: #
1.204 albertel 468: if ($type eq 'problem') {
469: $Apache::inputtags::part='0';
470: @Apache::inputtags::partlist=('0');
1.266 albertel 471: $Apache::lonhomework::problemstatus=&get_problem_status('0');
472: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 473:
1.266 albertel 474: } elsif ($type eq 'library') {
1.204 albertel 475: $Apache::inputtags::part='';
476: @Apache::inputtags::partlist=();
477: $Apache::lonhomework::problemstatus='';
1.266 albertel 478: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 479:
1.304 albertel 480: } elsif ($type eq 'Task') {
481: $Apache::inputtags::part='0';
482: @Apache::inputtags::partlist=('0');
483: $Apache::lonhomework::problemstatus='';
484: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 485: }
486: @Apache::inputtags::responselist = ();
487: @Apache::inputtags::importlist = ();
488: @Apache::inputtags::previous=();
489: @Apache::inputtags::previous_version=();
490: $Apache::structuretags::printanswer='No';
491: @Apache::structuretags::whileconds=();
492: @Apache::structuretags::whilebody=();
493: @Apache::structuretags::whileline=();
494: $Apache::lonhomework::scantronmode=0;
495: undef($Apache::lonhomework::name);
496:
497: }
498:
499: sub reset_problem_globals {
500: my ($type)=@_;
501: undef(%Apache::lonhomework::history);
502: undef(%Apache::lonhomework::results);
503: undef($Apache::inputtags::part);
1.208 albertel 504: #don't undef this, lonhomework.pm takes care of this, we use this to
505: #detect if we try to do 2 problems in one file
506: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 507: undef($Apache::lonhomework::name);
508: }
509:
1.241 albertel 510: sub set_problem_state {
1.240 albertel 511: my ($part)=@_;
1.284 albertel 512: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 513: $Apache::lonhomework::history{"resource.$part.solved"}=
514: 'correct_by_student';
515: }
516: }
517:
1.241 albertel 518: sub get_problem_status {
519: my ($part)=@_;
1.267 albertel 520: my $problem_status;
1.284 albertel 521: if ($env{'request.state'} eq 'construct' &&
522: defined($env{'form.problemstatus'})) {
523: $problem_status=$env{'form.problemstatus'};
1.267 albertel 524: } else {
525: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
526: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 527: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 528: }
529: return $problem_status;
530: }
531:
1.9 albertel 532: sub start_problem {
1.326 albertel 533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 534:
1.311 foxr 535: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 536: if (!$Apache::lonxml::metamode) {
537: &Apache::lonxml::startredirection();
538: }
1.311 foxr 539:
1.308 foxr 540: # Problems don't nest and we don't allow more than one <problem> in
541: # a .problem file.
542: #
1.184 albertel 543: if ( $Apache::inputtags::part ne '' ||
544: $Apache::lonhomework::parsing_a_problem) {
545: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 546: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 547: return '';
548: }
1.184 albertel 549:
550: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 551: &init_problem_globals('problem');
1.166 albertel 552:
1.284 albertel 553: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 554: $Apache::lonhomework::scantronmode=1;
555: }
1.161 albertel 556:
1.246 albertel 557: &initialize_storage();
1.159 albertel 558: if ($target ne 'analyze') {
559: if ($target eq 'web') {
560: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 561: }
1.284 albertel 562: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 563: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 564: if (($env{'request.state'} eq 'construct') &&
565: defined($env{'form.problemtype'})) {
566: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 567: }
1.332 albertel 568: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 569: }
1.164 albertel 570: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 571: my $uri=$env{'request.uri'};
1.159 albertel 572: if ($uri=~/\.(\w+)$/) {
573: $Apache::lonhomework::type=$1;
574: &Apache::lonxml::debug("Using type of $1");
575: } else {
576: $Apache::lonhomework::type='problem';
577: &Apache::lonxml::debug("Using default type, problem, :$uri:");
578: }
1.87 albertel 579: }
1.301 albertel 580: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 581:
1.159 albertel 582: #added vars to the scripting enviroment
1.213 albertel 583: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 584: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 585: &Apache::run::run($expression,$safeeval);
1.159 albertel 586: my $status;
587: my $accessmsg;
588:
589: #should get back a <html> or the neccesary stuff to start XML/MathML
1.343 ! albertel 590: my $name= &get_resource_name($parstack,$safeeval);
! 591: my ($result,$form_tag_start)=
! 592: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
! 593: $name);
1.284 albertel 594: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 595:
596: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
597: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
598: $target eq 'tex') {
599: #handle exam checkout
600: if ($Apache::lonhomework::type eq 'exam') {
601: my $token=
602: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 603: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 604: $token=&Apache::lonxml::maketoken();
605: $Apache::lonhomework::history{"resource.0.outtoken"}=
606: $token;
607: }
1.343 ! albertel 608: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 609: }
1.284 albertel 610: if ($env{'form.markaccess'}) {
1.252 albertel 611: &Apache::lonnet::set_first_access('map');
612: }
1.159 albertel 613: #handle rand seed in construction space
614: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 615: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 616: if ($env{'request.state'} ne "construct" &&
617: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 618: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
619: $rndseed.'" />'.
620: '<input type="submit" name="resetdata"
1.334 albertel 621: value="'.&mt('New Problem Variation').'" />';
622: if (exists($env{'form.username'})) {
623: $form_tag_start.=
1.164 albertel 624: '<input type="hidden" name="username"
1.284 albertel 625: value="'.$env{'form.username'}.'" />';
1.334 albertel 626: }
1.333 albertel 627: if ($env{'request.role.adv'}) {
1.267 albertel 628: $form_tag_start.=
1.300 albertel 629: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 630: if (defined($env{'form.showallfoils'})) {
1.267 albertel 631: $form_tag_start.='checked="on"';
632: }
1.300 albertel 633: $form_tag_start.= ' />'.&mt(' Show All Foils').
634: '</label>';
1.267 albertel 635: }
636: $form_tag_start.='<hr />';
1.162 albertel 637: }
1.324 albertel 638:
639: ($status,$accessmsg,my $slot_name,my $slot) =
640: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 641: push (@Apache::inputtags::status,$status);
1.324 albertel 642:
1.159 albertel 643: my $expression='$external::datestatus="'.$status.'";';
644: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
645: &Apache::run::run($expression,$safeeval);
646: &Apache::lonxml::debug("Got $status");
1.324 albertel 647:
1.159 albertel 648: if (( $status eq 'CLOSED' ) ||
649: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 650: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 651: ( $status eq 'BANNED') ||
1.216 albertel 652: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 653: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 654: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 655: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
656: $style);
1.159 albertel 657: if ( $target eq "web" ) {
1.343 ! albertel 658: my $msg;
1.159 albertel 659: if ($status eq 'UNAVAILABLE') {
1.245 albertel 660: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 661: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 662: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 663: }
1.216 albertel 664: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 665: $msg.='The problem '.$accessmsg;
666: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 ! albertel 667: $msg.=&checkout_msg();
1.252 albertel 668: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 669: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 670: } elsif ($status eq 'NOT_IN_A_SLOT') {
671: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 672: }
673: $result.=$msg.'<br />';
674: } elsif ($target eq 'tex') {
1.332 albertel 675: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
676: : '\begin{minipage}{\textwidth}';
677: $result.='\begin{document}\noindent \vskip 1 mm '.
678: $startminipage.'\vskip 0 mm';
1.159 albertel 679: if ($status eq 'UNAVAILABLE') {
1.211 albertel 680: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 681: } else {
1.211 albertel 682: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 683: }
684: }
1.324 albertel 685: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 686: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
687: $style);
1.324 albertel 688: if ($target eq 'web') {
689: $result .= &Apache::bridgetask::proctor_validation_screen();
690: } elsif ($target eq 'grade') {
691: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
692: 'problem');
693: }
1.159 albertel 694: } elsif ($target eq 'web') {
1.343 ! albertel 695: $result.="\n $form_tag_start".
1.227 albertel 696: '<input type="hidden" name="submitted" value="yes" />';
697: # create a page header and exit
1.284 albertel 698: if ($env{'request.state'} eq "construct") {
699: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 700: }
701: # if we are viewing someone else preserve that info
1.284 albertel 702: if (defined $env{'form.grade_symb'}) {
1.227 albertel 703: foreach my $field ('symb','courseid','domain','username') {
704: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 705: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 706: }
707: }
708: } elsif ($target eq 'tex') {
1.319 foxr 709: $result .= 'INSERTTEXFRONTMATTERHERE';
710:
1.99 sakharuk 711: }
1.159 albertel 712: } elsif ($target eq 'edit') {
1.343 ! albertel 713: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 714: $Apache::lonxml::warnings_error_header=
715: &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 716: my $temp=&Apache::edit::insertlist($target,$token);
717: $result.=$temp;
718: } elsif ($target eq 'modified') {
719: $result=$token->[4];
720: $result.=&Apache::edit::handle_insert();
721: } else {
722: # page_start returned a starting result, delete it if we don't need it
723: $result = '';
1.99 sakharuk 724: }
1.159 albertel 725: return $result;
1.9 albertel 726: }
727:
728: sub end_problem {
1.159 albertel 729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 730: my $result;
1.310 foxr 731:
1.321 albertel 732: if (!$Apache::lonxml::metamode) {
733: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 734: $Apache::lonxml::post_evaluate=0;
1.321 albertel 735: }
1.319 foxr 736:
737: if ($target eq 'tex') {
1.321 albertel 738:
739: # Figure out the front matter and replace the
740: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
741: # this in end_problem because whether or not we display due
742: # dates depends on whether due dates have already been
743: # displayed in the problem parts.
744:
1.319 foxr 745: my $frontmatter = '';
746: my $startminipage = '';
747: if (not $env{'form.problem_split'}=~/yes/) {
748: $startminipage = '\begin{minipage}{\textwidth}';
749: }
750: my $id = $Apache::inputtags::part;
751: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
752: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
753: my @packages = split /,/,$packages;
754: my $allow_print_points = 0;
755: foreach my $partial_key (@packages) {
756: if ($partial_key=~m/^part_0$/) {
757: $allow_print_points=1;
758: }
759: }
760: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
761: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
762: if (lc($env{'course.'.$env{'request.course.id'}.
763: '.disableexampointprint'}) eq 'yes') {
764: $allow_print_points=0;
765: }
766: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
767: 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 ';
768: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
769: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
770:
771: # Figure out what the due date is and if we need to print
772: # it in the problem header. We have been logging the
773: # last due date written to file.
774:
775: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
776: my $duedate = POSIX::strftime("%c",localtime($duetime));
777: my $temp_file;
778: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
779:
780: # Figure out what the last printed due date is or set it
781: # to the epoch if no duedates have been printed.
782:
783: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
784: if (-e $filename) {
785: $temp_file = Apache::File->new($filename);
786: my @due_file = <$temp_file>;
787: $due_file_content = $due_file[$#due_file];
788: chomp $due_file_content;
789: }
790:
791: # We display the due date iff it is not the same as the last
792: # duedate in problem header ($due_file_content), and
793: # none of our parts displayed a duedate.
794: #
795: my $parts_with_displayduedate;
796: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
797: $parts_with_displayduedate =
798: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
799: } else {
800: $parts_with_displayduedate = 0;
801: }
802: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
803: $temp_file = Apache::File->new('>'.$filename);
804: print $temp_file "$duetime\n";
805: if (not $env{'request.symb'} =~ m/\.page_/) {
806: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
807: $frontmatter .= $begin_doc.
808: '\textit{Due date: '.$duedate.'} '.$toc_line;
809: } else {
810: $frontmatter.= $begin_doc.$toc_line;
811: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
812: }
813: } else {
814: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
815: }
816: } else {
817: if (not $env{'request.symb'} =~ m/\.page_/) {
818: $frontmatter .= $begin_doc.$toc_line;
819: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
820: } else {
821: $frontmatter .= '\vskip 1mm \\\\\\\\';
822: }
823: }
824: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
825: }
826:
1.159 albertel 827: my $status=$Apache::inputtags::status['-1'];
828: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
829: $target eq 'tex') {
1.249 albertel 830: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 831: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 832: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
833: &Apache::inputtags::grade;
1.324 albertel 834: } elsif ($status eq 'NEEDS_CHECKIN') {
835: # no need to grade, and don't want to hide data
1.249 albertel 836: } else {
837: # move any submission data to .hidden
838: &Apache::inputtags::hidealldata($Apache::inputtags::part);
839: }
1.159 albertel 840: } elsif ( ($target eq 'web' || $target eq 'tex') &&
841: $Apache::inputtags::part eq '0' &&
1.252 albertel 842: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 843: # if part is zero, no <part>s existed, so we need show the current
844: # grading status
845: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
846: $result.= $gradestatus;
847: }
848: if (
1.284 albertel 849: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 850: ($target eq 'answer') || ($target eq 'tex')
851: ) {
1.227 albertel 852: if ($target ne 'tex' &&
1.284 albertel 853: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 854: $result.="</form>";
855: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 856: }
857: if ($target eq 'web') {
1.281 albertel 858: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 859: } elsif ($target eq 'tex') {
1.178 sakharuk 860: my $endminipage = '';
1.284 albertel 861: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 862: $endminipage = '\end{minipage}';
863: }
1.284 albertel 864: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 865: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 866: $result=~s/<\/html>//;
1.159 albertel 867: } else {
1.262 sakharuk 868: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 869: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 870: $result .= $endminipage.'\end{document} ';
871: } else {
872: $result .= '';
873: }
1.159 albertel 874: }
875: }
876: }
877: if ($target eq 'grade') {
878: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
879: &finalize_storage();
880: }
1.284 albertel 881: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
882: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 883: $result.=&Apache::lonxml::xmlend().'</html>';
884: # normally we get it from above, but in CSTR
1.172 albertel 885: # we always show answer mode too.
1.159 albertel 886: }
887: } elsif ($target eq 'meta') {
888: if ($Apache::inputtags::part eq '0') {
1.179 albertel 889: @Apache::inputtags::response=();
1.159 albertel 890: $result=&Apache::response::mandatory_part_meta;
891: }
1.215 albertel 892: $result.=&Apache::response::meta_part_order();
1.258 albertel 893: $result.=&Apache::response::meta_response_order();
1.159 albertel 894: } elsif ($target eq 'edit') {
895: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 896: $result .= &problem_edit_footer();
1.320 albertel 897: } elsif ($target eq 'modified') {
898: $result .= $token->[2];
899: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 900: }
1.155 albertel 901:
1.284 albertel 902: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 903: &Apache::inputtags::check_for_duplicate_ids();
904: }
1.204 albertel 905:
906: &reset_problem_globals('problem');
1.159 albertel 907:
908: return $result;
1.48 albertel 909: }
910:
1.108 albertel 911:
1.48 albertel 912: sub start_library {
1.159 albertel 913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 ! albertel 914: my ($result,$form_tag_start);
1.244 albertel 915: if ($$tagstack[0] eq 'library') {
916: &init_problem_globals('library');
917: $Apache::lonhomework::type='problem';
918: }
1.159 albertel 919: if ($target eq 'edit') {
1.343 ! albertel 920: ($result,$form_tag_start)=
! 921: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
! 922: 'Edit');
! 923: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 924: my $temp=&Apache::edit::insertlist($target,$token);
925: $result.=$temp;
926: } elsif ($target eq 'modified') {
927: $result=$token->[4];
928: $result.=&Apache::edit::handle_insert();
1.340 albertel 929: } elsif (($target eq 'web' || $target eq 'webgrade')
930: && $$tagstack[0] eq 'library'
931: && $env{'request.state'} eq "construct" ) {
1.159 albertel 932: my $name=&get_resource_name($parstack,$safeeval);
1.343 ! albertel 933: ($result,$form_tag_start)=
! 934: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
! 935: $name);
1.159 albertel 936: my $rndseed=&setup_rndseed($safeeval);
1.343 ! albertel 937: $result.=" \n $form_tag_start".
1.159 albertel 938: '<input type="hidden" name="submitted" value="yes" />';
939: $result.=&problem_web_to_edit_header($rndseed);
940: }
941: return $result;
1.48 albertel 942: }
943:
944: sub end_library {
1.159 albertel 945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
946: my $result='';
947: if ($target eq 'edit') {
948: $result=&problem_edit_footer();
949: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 950: $env{'request.state'} eq "construct") {
1.342 albertel 951: $result.='</form>'.&Apache::lonxml::xmlend();
1.159 albertel 952: }
1.204 albertel 953: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 954: return $result;
1.197 www 955: }
956:
957: sub start_definetag {
1.326 albertel 958: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 959:
960: my $result;
961:
962: my $name = $token->[2]->{'name'};
1.326 albertel 963: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 964: if ($name=~/^\//) {
965: $result=
966: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
967: } else {
968: $result=
969: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
970: }
971: $skip=~s/\</\<\;/gs;
972: $skip=~s/\>/\>\;/gs;
973: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
974: return $result;
975: }
976:
977: sub end_definetag {
978: return '';
1.1 albertel 979: }
980:
981: sub start_block {
1.201 albertel 982: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 983:
984: my $result;
1.1 albertel 985:
1.339 albertel 986: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
987: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 988: my $code = $token->[2]->{'condition'};
1.201 albertel 989: if (defined($code)) {
1.137 albertel 990: if (!$Apache::lonxml::default_homework_loaded) {
991: &Apache::lonxml::default_homework_load($safeeval);
992: }
1.131 albertel 993: $result = &Apache::run::run($code,$safeeval);
994: &Apache::lonxml::debug("block :$code: returned :$result:");
995: } else {
996: $result='1';
997: }
998: if ( ! $result ) {
1.201 albertel 999: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1000: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1001: }
1002: $result='';
1003: } elsif ($target eq 'edit') {
1004: $result .=&Apache::edit::tag_start($target,$token);
1005: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1006: $token,40);
1007: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1008: } elsif ($target eq 'modified') {
1009: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1010: $safeeval,'condition');
1011: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1012: }
1.131 albertel 1013: return $result;
1.1 albertel 1014: }
1015:
1016: sub end_block {
1.167 www 1017: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1018: my $result;
1019: if ($target eq "edit") {
1020: $result.= &Apache::edit::tag_end($target,$token,'');
1021: }
1022: return $result;
1023: }
1024:
1025: sub start_languageblock {
1.201 albertel 1026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1027:
1028: my $result;
1029:
1.339 albertel 1030: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1031: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1032: my $include = $token->[2]->{'include'};
1033: my $exclude = $token->[2]->{'exclude'};
1034: my %languages=&Apache::loncommon::display_languages();
1035: $result='1';
1036: if ($include) {
1037: $result='';
1038: foreach (split(/\,/,$include)) {
1039: if ($languages{$_}) { $result='1'; }
1040: }
1041: }
1042: if ($exclude) {
1043: foreach (split(/\,/,$exclude)) {
1044: if ($languages{$_}) { $result='0'; }
1045: }
1046: }
1047: if ( ! $result ) {
1048: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1049: $style);
1050: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1051: }
1052: $result='';
1.167 www 1053: } elsif ($target eq 'edit') {
1054: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1055: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1056: $token,40);
1.211 albertel 1057: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1058: $token,40);
1059: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1060: } elsif ($target eq 'modified') {
1061: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1062: $safeeval,'include',
1063: 'exclude');
1.167 www 1064: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1065: }
1066: return $result;
1067: }
1068:
1069: sub end_languageblock {
1.170 www 1070: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1071: my $result;
1.201 albertel 1072: if ($target eq "edit") {
1.170 www 1073: $result.= &Apache::edit::tag_end($target,$token,'');
1074: }
1075: return $result;
1076: }
1077:
1078: sub start_instructorcomment {
1.201 albertel 1079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1080:
1081: my $result;
1082:
1.339 albertel 1083: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1084: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1085: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1086: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1087: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1088: $parser,$style);
1.170 www 1089: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1090: }
1091: $result='';
1092: } elsif ($target eq 'edit') {
1093: $result .=&Apache::edit::tag_start($target,$token);
1094: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1095: }
1096: return $result;
1097: }
1098:
1099: sub end_instructorcomment {
1.159 albertel 1100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1101: my $result;
1102: if ($target eq "edit") {
1103: $result.= &Apache::edit::tag_end($target,$token,'');
1104: }
1105: return $result;
1.4 tsai 1106: }
1107:
1108: sub start_while {
1.326 albertel 1109: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1110:
1.160 albertel 1111: my $result;
1.339 albertel 1112: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1113: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1114: my $code = $token->[2]->{'condition'};
1.4 tsai 1115:
1.160 albertel 1116: push( @Apache::structuretags::whileconds, $code);
1117: if (!$Apache::lonxml::default_homework_loaded) {
1118: &Apache::lonxml::default_homework_load($safeeval);
1119: }
1120: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1121: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1122: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1123: push( @Apache::structuretags::whileline, $token->[5]);
1124: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1125: if ( $result ) {
1126: &Apache::lonxml::newparser($parser,\$bodytext);
1127: }
1128: } elsif ($target eq 'edit') {
1129: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1130: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1131: $token,40);
1132: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1133: } elsif ($target eq 'modified') {
1134: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1135: $safeeval,'condition');
1136: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1137: }
1.160 albertel 1138: return $result;
1.4 tsai 1139: }
1140:
1141: sub end_while {
1.159 albertel 1142: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1143: my $result;
1144:
1.339 albertel 1145: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1146: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1147: my $code = pop(@Apache::structuretags::whileconds);
1148: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1149: my $line = pop(@Apache::structuretags::whileline);
1150: my $return = &Apache::run::run($code,$safeeval);
1151: my $starttime=time;
1152: my $error=0;
1153: while ($return) {
1154: if (time-$starttime >
1155: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1156: #$return = 0; $error=1; next;
1.161 albertel 1157: }
1158: $result.=&Apache::scripttag::xmlparse($bodytext);
1159: $return = &Apache::run::run($code,$safeeval);
1160: }
1161: if ($error) {
1.270 albertel 1162: &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 1163: }
1164: } elsif ($target eq "edit") {
1165: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1166: }
1.160 albertel 1167: return $result;
1.1 albertel 1168: }
1.6 tsai 1169:
1.160 albertel 1170: # <randomlist show="1">
1.6 tsai 1171: # <tag1>..</tag1>
1172: # <tag2>..</tag2>
1173: # <tag3>..</tag3>
1.160 albertel 1174: # ...
1.6 tsai 1175: # </randomlist>
1176: sub start_randomlist {
1.326 albertel 1177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1178: my $result;
1.339 albertel 1179: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1180: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1181: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1182: my $b_parser= HTML::LCParser->new(\$body);
1183: $b_parser->xml_mode(1);
1184: $b_parser->marked_sections(1);
1.159 albertel 1185: my $b_tok;
1186: my @randomlist;
1187: my $list_item;
1188: while($b_tok = $b_parser->get_token() ) {
1189: if($b_tok->[0] eq 'S') { # start tag
1190: # get content of the tag until matching end tag
1191: # get all text upto the matching tag
1192: # and push the content into @randomlist
1193: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1194: $b_parser);
1195: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1196: push(@randomlist,$list_item);
1197: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1198: # $list_item</b>";
1199: }
1200: if($b_tok->[0] eq 'T') { # text
1201: # what to do with text in between tags?
1202: # print "<b>TEXT $b_tok->[1]</b><br />";
1203: }
1204: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1205: # print "<b>END-TAG $b_tok->[1]</b><br />";
1206: # }
1207: }
1.303 albertel 1208: if (@randomlist) {
1209: my @idx_arr = (0 .. $#randomlist);
1210: &Apache::structuretags::shuffle(\@idx_arr);
1211: my $bodytext = '';
1212: my $show=$#randomlist;
1213: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1214: $showarg--;
1215: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1216: for(0 .. $show) {
1217: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1218: }
1219: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1220: }
1221: } elsif ($target eq 'edit' ) {
1222: $result .=&Apache::edit::tag_start($target,$token);
1223: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1224: $token,5);
1225: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1226: } elsif ($target eq 'modified' ) {
1227: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1228: $safeeval,'show');
1229: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1230: }
1231: return $result;
1.7 tsai 1232: }
1233:
1234: sub shuffle {
1235: my $a=shift;
1236: my $i;
1.303 albertel 1237: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1238: &Apache::response::pushrandomnumber();
1.159 albertel 1239: for($i=@$a;--$i;) {
1240: my $j=int(&Math::Random::random_uniform() * ($i+1));
1241: next if $i == $j;
1242: @$a[$i,$j] = @$a[$j,$i];
1243: }
1.251 albertel 1244: &Apache::response::poprandomnumber();
1.7 tsai 1245: }
1.6 tsai 1246: }
1247:
1248: sub end_randomlist {
1.159 albertel 1249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1250: my $result;
1251: if ($target eq 'edit' ) {
1252: $result=&Apache::edit::tag_end($target,$token,
1253: 'End Randomly Parsed Block');
1254: }
1255: return $result;
1.6 tsai 1256: }
1257:
1.283 albertel 1258: sub ordered_show_check {
1259: my $last_part=$Apache::inputtags::partlist[-2];
1260: my $in_order=
1261: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1262: my $in_order_show=1;
1263: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1264: $in_order_show=&Apache::response::check_status($last_part);
1265: }
1266: return $in_order_show;
1267: }
1268:
1.11 albertel 1269: sub start_part {
1.326 albertel 1270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1271: if (!$Apache::lonxml::metamode) {
1272: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1273: # duedates.
1274: }
1.159 albertel 1275: my $result='';
1276: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1277: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1278: $Apache::inputtags::part=$id;
1.177 albertel 1279: push(@Apache::inputtags::partlist,$id);
1280: @Apache::inputtags::response=();
1.159 albertel 1281: @Apache::inputtags::previous=();
1282: @Apache::inputtags::previous_version=();
1.241 albertel 1283: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1284: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1285: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1286: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1287: my $in_order_show=&ordered_show_check();
1.214 albertel 1288: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1289: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1290: &Apache::run::run($expression,$safeeval);
1.159 albertel 1291:
1292: if ($target eq 'meta') {
1.224 www 1293: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1294: return &Apache::response::mandatory_part_meta.
1295: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1296: } elsif ($target eq 'web' || $target eq 'grade' ||
1297: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1298: if ($hidden || !$in_order_show) {
1.326 albertel 1299: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1300: } else {
1301: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1302: push (@Apache::inputtags::status,$status);
1303: my $expression='$external::datestatus="'.$status.'";';
1304: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1305: &Apache::run::run($expression,$safeeval);
1.284 albertel 1306: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1307: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1308: }
1.216 albertel 1309: if (( $status eq 'CLOSED' ) ||
1310: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1311: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1312: ( $status eq 'BANNED') ||
1313: ( $status eq 'UNAVAILABLE') ||
1314: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1315: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1316: $style);
1.159 albertel 1317: if ( $target eq "web" ) {
1.211 albertel 1318: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1319: } elsif ( $target eq 'tex' ) {
1.284 albertel 1320: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1321: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1322: } else {
1.211 albertel 1323: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1324: }
1.159 albertel 1325: }
1326: } else {
1327: if ($target eq 'tex') {
1.284 albertel 1328: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1329: if ($$tagstack[-2] eq 'td') {
1330: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1331: } else {
1332: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1333: }
1.195 sakharuk 1334: }
1.159 albertel 1335: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1336: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1337: my @allkeys = split /,/,$allkeys;
1338: my $allow_print_points = 0;
1339: foreach my $partial_key (@allkeys) {
1.230 albertel 1340: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1341: if ($1 ne '0') {$allow_print_points=1;}
1342: }
1343: }
1.275 albertel 1344: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1345: if (defined($maxtries) && $maxtries < 0) {
1346: $allow_print_points=0;
1347: }
1.302 albertel 1348: if (lc($env{'course.'.$env{'request.course.id'}.
1349: '.disableexampointprint'}) eq 'yes') {
1350: $allow_print_points=0;
1351: }
1.222 sakharuk 1352: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1353: } elsif ($target eq 'web') {
1354: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1355: }
1356: }
1357: }
1358: } elsif ($target eq 'edit') {
1359: $result.=&Apache::edit::tag_start($target,$token);
1360: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1361: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1362: ' '.
1363: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1364: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1365: } elsif ($target eq 'modified') {
1366: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1367: $safeeval,'id','display');
1.159 albertel 1368: if ($constructtag) {
1.225 albertel 1369: #limiting ids to only letters numbers, and space
1.224 www 1370: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1371: $result = &Apache::edit::rebuild_tag($token);
1372: $result.=&Apache::edit::handle_insert();
1373: }
1374: }
1375: return $result;
1.11 albertel 1376: }
1377:
1378: sub end_part {
1.159 albertel 1379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1380: &Apache::lonxml::debug("in end_part $target ");
1381: my $status=$Apache::inputtags::status['-1'];
1382: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1383: my $in_order_show=&ordered_show_check();
1.321 albertel 1384: my $result;
1385: if (!$Apache::lonxml::metamode) {
1386: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1387: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1388: }
1.312 albertel 1389: if ($target eq 'grade') {
1.249 albertel 1390: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1391: !$hidden && $in_order_show) {
1.311 foxr 1392: $result.=&Apache::inputtags::grade;
1.249 albertel 1393: } else {
1394: # move any submission data to .hidden
1395: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1396: }
1.283 albertel 1397: } elsif (($target eq 'web' || $target eq 'tex') &&
1398: !$hidden && $in_order_show) {
1.159 albertel 1399: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1400: $target);
1.212 albertel 1401: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1402: $gradestatus='';
1403: }
1.311 foxr 1404: $result.=$gradestatus;
1.265 sakharuk 1405: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1406: } elsif ($target eq 'edit') {
1.311 foxr 1407: $result.=&Apache::edit::end_table();
1.322 albertel 1408: } elsif ($target eq 'modified') {
1409: $result .= $token->[2];
1410: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1411: }
1412: pop @Apache::inputtags::status;
1413: $Apache::inputtags::part='';
1.295 albertel 1414: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1415: return $result;
1.11 albertel 1416: }
1.1 albertel 1417:
1.25 albertel 1418: sub start_preduedate {
1.326 albertel 1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1420: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1421: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1422: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1423: if (!$Apache::lonhomework::scantronmode &&
1424: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1425: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1426: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1427: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1428: }
1.24 albertel 1429: }
1.159 albertel 1430: return '';
1.24 albertel 1431: }
1432:
1.25 albertel 1433: sub end_preduedate {
1.159 albertel 1434: return '';
1.24 albertel 1435: }
1436:
1.25 albertel 1437: sub start_postanswerdate {
1.326 albertel 1438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1439: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1440: if ($Apache::lonhomework::scantronmode ||
1441: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1442: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1443: }
1444: } elsif ($target eq 'tex') {
1.326 albertel 1445: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1446: }
1447: return '';
1.24 albertel 1448: }
1449:
1.25 albertel 1450: sub end_postanswerdate {
1.159 albertel 1451: return '';
1.24 albertel 1452: }
1453:
1.25 albertel 1454: sub start_notsolved {
1.326 albertel 1455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1456: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1457: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1458: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1459: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1460: if ($gradestatus =~ /^correct/ &&
1461: &Apache::response::show_answer()) {
1.159 albertel 1462: &Apache::lonxml::debug("skipping");
1.326 albertel 1463: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1464: }
1.24 albertel 1465: }
1.159 albertel 1466: return '';
1.24 albertel 1467: }
1468:
1.25 albertel 1469: sub end_notsolved {
1.159 albertel 1470: return '';
1.24 albertel 1471: }
1472:
1473: sub start_solved {
1.326 albertel 1474: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1475: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1476: $target eq 'tex') {
1477: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1478: if ($gradestatus !~ /^correct/ ||
1479: !&Apache::response::show_answer()) {
1.326 albertel 1480: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1481: }
1.24 albertel 1482: }
1.159 albertel 1483: return '';
1.24 albertel 1484: }
1485:
1486: sub end_solved {
1.248 albertel 1487: return '';
1488: }
1489:
1490: sub start_problemtype {
1.326 albertel 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1492: my $result;
1.339 albertel 1493: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1494: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1495: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1496: if (!defined($mode)) { $mode='show'; }
1497: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1498: my $found=0;
1499: foreach my $type (split(',',$for)) {
1500: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1501: }
1502: if ($mode eq 'show' && !$found) {
1.326 albertel 1503: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1504: }
1505: if ($mode eq 'hide' && $found) {
1.326 albertel 1506: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1507: }
1508: } elsif ($target eq 'edit') {
1509: $result .=&Apache::edit::tag_start($target,$token);
1510: $result.=&Apache::edit::select_arg('Mode:','mode',
1511: [['show','Show'],
1512: ['hide','Hide']]
1513: ,$token);
1514: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1515: [ ['exam','Exam/Quiz Problem'],
1516: ['survey','Survey'],
1517: ['problem','Homework Problem'] ]
1518: ,$token);
1519: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1520: } elsif ($target eq 'modified') {
1521: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1522: $safeeval,'mode','for');
1523: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1524: }
1525: return $result;
1526: }
1527:
1528: sub end_problemtype {
1.159 albertel 1529: return '';
1.24 albertel 1530: }
1.34 albertel 1531:
1532: sub start_startouttext {
1.159 albertel 1533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1534: my @result=(''.'');
1535: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1536: return (@result);
1.34 albertel 1537: }
1.159 albertel 1538:
1.34 albertel 1539: sub end_startouttext {
1.326 albertel 1540: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1541: my $result='';
1542: my $text='';
1543:
1544: if ($target eq 'edit') {
1.326 albertel 1545: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1546: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1547: <td>".&mt('Delete:').
1.159 albertel 1548: &Apache::edit::deletelist($target,$token)
1549: ."</td>
1.42 albertel 1550: <td>".
1.159 albertel 1551: &Apache::edit::insertlist($target,$token).
1552: &Apache::edit::end_row().
1553: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1554: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1555: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1556: }
1557: if ($target eq 'modified') {
1.219 albertel 1558: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1559: }
1560: if ($target eq 'tex') {
1561: $result .= '\noindent ';
1562: }
1563: return $result;
1.34 albertel 1564: }
1.159 albertel 1565:
1.34 albertel 1566: sub start_endouttext {
1.159 albertel 1567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1568: my $result='';
1569: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1570: if ($target eq "modified") {
1571: $result='<endouttext />'.
1572: &Apache::edit::handle_insertafter('startouttext'); }
1573: return $result;
1.34 albertel 1574: }
1.159 albertel 1575:
1.34 albertel 1576: sub end_endouttext {
1.159 albertel 1577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1578: my @result=('','');
1579: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1580: return (@result);
1.34 albertel 1581: }
1.159 albertel 1582:
1.45 albertel 1583: sub delete_startouttext {
1.326 albertel 1584: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1585: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1586: my $text=$$parser['-1']->get_text("/endouttext");
1587: my $ntoken=$$parser['-1']->get_token();
1588: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1589: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1590: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1591: # they did the last time round
1592: &Apache::lonxml::increasedepth($ntoken);
1593: &Apache::lonxml::decreasedepth($ntoken);
1594: return 1;
1.193 www 1595: }
1596:
1597: sub start_simpleeditbutton {
1598: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1599: my $result='';
1.284 albertel 1600: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1601: ($target eq 'web') &&
1.330 albertel 1602: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1603: my $url=$env{'request.noversionuri'};
1.193 www 1604: $url=~s/\?.*$//;
1.278 albertel 1605: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1606: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1607: '<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::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 1608: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1609: }
1610: return $result;
1611: }
1612:
1613: sub end_simpleeditbutton {
1614: return '';
1.45 albertel 1615: }
1.34 albertel 1616:
1.1 albertel 1617: 1;
1618: __END__
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