Annotation of loncom/homework/structuretags.pm, revision 1.252
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.252 ! albertel 4: # $Id: structuretags.pm,v 1.251 2004/05/27 04:32:19 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: #
1.33 albertel 28: # 2/19 Guy
1.44 ng 29: # 6/26/2001 fixed extra web display at end of <web></web> tags
1.60 www 30: # 8/17,8/18,8/20 Gerd Kortemeyer
1.54 www 31:
1.133 sakharuk 32:
1.1 albertel 33: package Apache::structuretags;
34:
35: use strict;
36: use Apache::lonnet;
1.101 sakharuk 37: use Apache::File();
1.147 www 38: use Apache::lonmenu;
1.210 albertel 39: use Apache::lonlocal;
1.231 sakharuk 40: use Apache::lonxml;
1.1 albertel 41:
1.78 harris41 42: BEGIN {
1.248 albertel 43: &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 44: }
45:
46: sub start_web {
1.159 albertel 47: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 48: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
49: if ($target eq 'web') {
50: return $bodytext;
1.159 albertel 51: }
52: return '';
1.10 albertel 53: }
54:
55: sub end_web {
1.44 ng 56: return '';
1.10 albertel 57: }
58:
59: sub start_tex {
1.159 albertel 60: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 61: my $result='';
1.200 albertel 62: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
63: if ($target eq 'tex') {
64: return $bodytext.' ';
1.159 albertel 65: }
1.198 sakharuk 66: return $result;;
1.10 albertel 67: }
68:
69: sub end_tex {
1.44 ng 70: return '';
1.9 albertel 71: }
72:
1.48 albertel 73: sub page_start {
1.159 albertel 74: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
75: my %found;
1.207 albertel 76: foreach my $taginside (@$tagstack) {
1.159 albertel 77: foreach my $taglookedfor ('html','body','form') {
78: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
79: }
80: }
81:
82: my $result;
83: my $head_tag_start;
84: if (!defined($found{'html'})) {
85: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
86: $parstack,$parser,$safeeval);
1.218 albertel 87: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target);
1.159 albertel 88: }
89: my $body_tag_start;
90: if (!defined($found{'body'})) {
91: $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.
92: 'onUnload="'.&Apache::lonmenu::unloadevents().'" ';
93: my $background=&Apache::lonxml::get_param('background',$parstack,
94: $safeeval);
1.199 www 95: if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }
1.159 albertel 96: if ($background) {
97: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
98: $background;
99: $body_tag_start.='background="'.$background.'" ';
100: } else {
101: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
102: $safeeval);
1.199 www 103: if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) {
1.159 albertel 104: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
105: } else {
106: $body_tag_start.='bgcolor="#ffffff"';
107: }
1.199 www 108: }
109: if ($ENV{'browser.fontenhance'} eq 'on') {
110: $body_tag_start.=' style="font-size: x-large;" ';
1.159 albertel 111: }
112: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
113: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
1.165 albertel 114: my ($symb,undef,undef,undef,$publicuser)=
115: &Apache::lonxml::whichuser();
116: if ($symb eq '' && !$publicuser) {
1.159 albertel 117: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 118: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 119: $body_tag_start.=$help;
120: }
121: }
1.245 albertel 122: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 123: }
124: my $form_tag_start;
125: if (!defined($found{'form'})) {
126: $form_tag_start='<form name="lonhomework" method="POST" action="'.
127: $ENV{'request.uri'}.'">';
128: }
129: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 130: }
131:
1.141 matthew 132: #use Time::HiRes();
1.105 albertel 133: sub get_resource_name {
1.159 albertel 134: my ($parstack,$safeeval)=@_;
1.204 albertel 135: if (defined($Apache::lonhomework::name)) {
136: return $Apache::lonhomework::name;
137: }
1.159 albertel 138: my $name=&Apache::lonnet::gettitle();
139: if ($name eq '') {
140: $name=&Apache::lonnet::EXT('resource.title');
141: if ($name eq 'con_lost') { $name = ''; }
142: }
1.204 albertel 143: if ($name!~/\S+/) {
144: $name=$ENV{'request.uri'};
1.205 albertel 145: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 146: }
1.159 albertel 147: $Apache::lonhomework::name=$name;
148: return $name;
1.105 albertel 149: }
150:
151: sub setup_rndseed {
1.159 albertel 152: my ($safeeval)=@_;
153: my $rndseed;
1.162 albertel 154: my ($symb)=&Apache::lonxml::whichuser();
1.247 albertel 155: if ($ENV{'request.state'} eq "construct" || $symb eq '' ||
156: $Apache::lonhomework::history{'resource.CODE'}) {
1.159 albertel 157: $rndseed=$ENV{'form.rndseed'};
158: if (!$rndseed) {
1.162 albertel 159: $rndseed=$Apache::lonhomework::history{'rndseed'};
160: if (!$rndseed) {
161: $rndseed=time;
162: }
1.237 albertel 163: $ENV{'form.rndseed'}=$rndseed;
1.162 albertel 164: }
1.210 albertel 165: if ($ENV{'form.resetdata'} eq &mt('New Problem Variation') ||
166: $ENV{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 167: srand(time);
168: $rndseed=int(rand(2100000000));
1.159 albertel 169: $ENV{'form.rndseed'}=$rndseed;
1.180 albertel 170: delete($ENV{'form.resetdata'});
171: delete($ENV{'form.newrandomization'});
1.159 albertel 172: }
1.187 albertel 173: if (defined($rndseed) && $rndseed ne int($rndseed)) {
174: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
175: }
1.247 albertel 176: if ($Apache::lonhomework::history{'resource.CODE'}) {
177: $rndseed=&Apache::lonnet::rndseed();
178: }
1.221 albertel 179: if ($safeeval) {
180: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 181: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 182: }
1.159 albertel 183: }
184: return $rndseed;
1.105 albertel 185: }
186:
187: sub problem_edit_header {
1.159 albertel 188: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 189: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 190: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
191: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
192: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
193: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
194: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.229 www 195: &Apache::loncommon::help_open_topic('Problem_Editor_XML_Index',
196: 'Problem Editing Help').'</td><td>'.
197: &Apache::loncommon::help_open_faq(5).
198: &Apache::loncommon::help_open_bug('Authoring').'</td></tr></table>'.
1.228 www 199: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 200: }
201:
202: sub problem_edit_footer {
1.210 albertel 203: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
204: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />';
1.105 albertel 205: }
206:
1.235 albertel 207: sub option {
208: my ($value,$name) = @_;
209: my $result ="<option value='".$value."' ";
210: if ($ENV{'form.'.$name} eq $value) {
211: $result.=" selected='on' ";
212: }
213: $result.='>';
214: return $result;
215: }
216:
1.105 albertel 217: sub problem_web_to_edit_header {
1.159 albertel 218: my ($rndseed)=@_;
1.210 albertel 219: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 220: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
221: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
222: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
223: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 224: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 225: <input type="text" name="rndseed" width="10" value="'.
226: $rndseed.'"
227: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 228: <input type="checkbox" name="showallfoils" ';
1.159 albertel 229: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 230: $result.= ' />'.&mt(' Show All Foils').
231: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
232: '<hr />';
1.235 albertel 233: $result.="
234: <nobr>
235: Problem Status:
236: <select name='problemstate'>
237: <option name=''></option>
238: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
239: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
240: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
241: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
242: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
243: </select>
244: </nobr>
245: <nobr>
246: Problem Type:
247: <select name='problemtype'>
248: <option name=''></option>
1.242 albertel 249: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
250: ".&option('problem','problemtype').&mt("Homework problem")."</option>
251: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 252: </select>
253: </nobr>
254: <nobr>
255: Feedback Mode:
256: <select name='problemstatus'>
257: <option value=''></option>
1.242 albertel 258: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
259: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 260: </select>
261: </nobr>
1.242 albertel 262: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 263: <hr />";
1.159 albertel 264: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 265: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 266: $result.= '<input type="submit" name="problemmode" value='.
267: &mt('"Calculate answers').'" /> for
1.136 albertel 268: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 269: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
270: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 271: '',undef,undef,300).
1.210 albertel 272: '<hr />';
1.159 albertel 273: return $result;
1.48 albertel 274: }
275:
1.65 albertel 276: sub initialize_storage {
1.159 albertel 277: %Apache::lonhomework::results=();
1.162 albertel 278: %Apache::lonhomework::history=();
1.159 albertel 279: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 280: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 281: %Apache::lonhomework::history=
282: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
283: my ($temp)=keys %Apache::lonhomework::history ;
284: &Apache::lonxml::debug("Return message of $temp");
285: } else {
286: %Apache::lonhomework::history=
287: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
288: }
289: #ignore error conditions
1.67 albertel 290: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 291: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 292: }
293:
294: # -------------------------------------------------------------finalize_storage
295: # Stores away the result has to a student's environment
296: # checks form.grade_ for specific values, other wises stores
297: # to the running users environment
298: sub finalize_storage {
1.159 albertel 299: my $result;
300: my ($temp) = keys %Apache::lonhomework::results;
301: if ( $temp ne '' ) {
302: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 303: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
304: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 305: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
306: $ENV{'request.uri'},'',$domain,$name);
307: &Apache::lonxml::debug('Construct Store return message:'.$result);
308: } else {
309: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
310: $symb,$courseid,$domain,$name);
311: &Apache::lonxml::debug('Store return message:'.$result);
312: }
1.67 albertel 313: }
1.159 albertel 314: return $result;
1.65 albertel 315: }
316:
317: sub checkout_msg {
1.211 albertel 318: my %lt=&Apache::lonlocal::texthash(
319: 'resource'=>'The resource needs to be checked out',
320: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
321: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
322: 'checkout'=>'Check out Exam for Viewing',
323: 'checkout?'=>'Check out Exam?');
1.159 albertel 324: return (<<ENDCHECKOUT);
1.211 albertel 325: <h2>$lt{'resource'}</h2>
326: <p>$lt{'id_expln'}</p>
327: <font color="red">
328: <p>$lt{'warning'}</p>
1.91 albertel 329: </font>
330: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
331: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 332: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 333: </form>
334: ENDCHECKOUT
335: }
336:
1.252 ! albertel 337: sub firstaccess_msg {
! 338: my ($time)=@_;
! 339: return (<<ENDCHECKOUT);
! 340: <h2>This resource is open for a limited time, once you click the 'Show Resource' button below you have $time to complete all resources in this sequence.</h2>
! 341: <form name="markaccess" method="POST" action="$ENV{'request.uri'}">
! 342: <input type="hidden" name="markaccess" value="yes" />
! 343: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
! 344: </form>
! 345: ENDCHECKOUT
! 346: }
! 347:
1.204 albertel 348: sub init_problem_globals {
349: my ($type)=@_;
350: #initialize globals
351: if ($type eq 'problem') {
352: $Apache::inputtags::part='0';
353: @Apache::inputtags::partlist=('0');
1.241 albertel 354:
355: $Apache::lonhomework::problemstatus=&get_problem_status('0')
1.204 albertel 356: } else {
357: $Apache::inputtags::part='';
358: @Apache::inputtags::partlist=();
359: $Apache::lonhomework::problemstatus='';
360: }
361: @Apache::inputtags::responselist = ();
362: @Apache::inputtags::importlist = ();
363: @Apache::inputtags::previous=();
364: @Apache::inputtags::previous_version=();
365: $Apache::structuretags::printanswer='No';
366: @Apache::structuretags::whileconds=();
367: @Apache::structuretags::whilebody=();
368: @Apache::structuretags::whileline=();
369: $Apache::lonhomework::scantronmode=0;
370: undef($Apache::lonhomework::name);
371:
372: }
373:
374: sub reset_problem_globals {
375: my ($type)=@_;
376: undef(%Apache::lonhomework::history);
377: undef(%Apache::lonhomework::results);
378: undef($Apache::inputtags::part);
1.208 albertel 379: #don't undef this, lonhomework.pm takes care of this, we use this to
380: #detect if we try to do 2 problems in one file
381: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 382: undef($Apache::lonhomework::name);
383: }
384:
1.241 albertel 385: sub set_problem_state {
1.240 albertel 386: my ($part)=@_;
387: if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
388: $Apache::lonhomework::history{"resource.$part.solved"}=
389: 'correct_by_student';
390: }
391: }
392:
1.241 albertel 393: sub get_problem_status {
394: my ($part)=@_;
395: my $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
396: &Apache::lonxml::debug("problem status for $part is $problem_status");
397: &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
398: if ($ENV{'request.state'} eq 'construct' &&
399: defined($ENV{'form.problemstatus'})) {
400: $problem_status=$ENV{'form.problemstatus'};
401: }
402: return $problem_status;
403: }
404:
1.9 albertel 405: sub start_problem {
1.159 albertel 406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 407:
1.184 albertel 408: if ( $Apache::inputtags::part ne '' ||
409: $Apache::lonhomework::parsing_a_problem) {
410: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
411: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 412: return '';
413: }
1.184 albertel 414:
415: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 416: &init_problem_globals('problem');
1.166 albertel 417:
418: if (defined($ENV{'scantron.maxquest'})) {
419: $Apache::lonhomework::scantronmode=1;
420: }
1.161 albertel 421:
1.246 albertel 422: &initialize_storage();
1.159 albertel 423: if ($target ne 'analyze') {
424: if ($target eq 'web') {
425: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 426: }
1.241 albertel 427: if ($ENV{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 428: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.237 albertel 429: if (($ENV{'request.state'} eq 'construct') &&
430: defined($ENV{'form.problemtype'})) {
431: $Apache::lonhomework::type=$ENV{'form.problemtype'};
432: }
1.240 albertel 433: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 434: }
1.164 albertel 435: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 436: my $uri=$ENV{'request.uri'};
437: if ($uri=~/\.(\w+)$/) {
438: $Apache::lonhomework::type=$1;
439: &Apache::lonxml::debug("Using type of $1");
440: } else {
441: $Apache::lonhomework::type='problem';
442: &Apache::lonxml::debug("Using default type, problem, :$uri:");
443: }
1.87 albertel 444: }
1.58 www 445:
1.159 albertel 446: #added vars to the scripting enviroment
1.213 albertel 447: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 448: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 449: &Apache::run::run($expression,$safeeval);
1.159 albertel 450: my $status;
451: my $accessmsg;
452:
453: #should get back a <html> or the neccesary stuff to start XML/MathML
454: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
455: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
456: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
457:
458: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
459: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
460: $target eq 'tex') {
461: #handle exam checkout
462: if ($Apache::lonhomework::type eq 'exam') {
463: my $token=
464: $Apache::lonhomework::history{"resource.0.outtoken"};
465: if (($ENV{'form.doescheckout'}) && (!$token)) {
466: $token=&Apache::lonxml::maketoken();
467: $Apache::lonhomework::history{"resource.0.outtoken"}=
468: $token;
469: }
470: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 471: }
1.252 ! albertel 472: if ($ENV{'form.markaccess'}) {
! 473: &Apache::lonnet::set_first_access('map');
! 474: }
1.159 albertel 475: #handle rand seed in construction space
476: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 477: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 478: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 479: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
480: $rndseed.'" />'.
481: '<input type="submit" name="resetdata"
1.211 albertel 482: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 483: '<input type="hidden" name="username"
1.185 albertel 484: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 485: }
1.159 albertel 486: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
487: push (@Apache::inputtags::status,$status);
488: my $expression='$external::datestatus="'.$status.'";';
489: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
490: &Apache::run::run($expression,$safeeval);
491: &Apache::lonxml::debug("Got $status");
492: if (( $status eq 'CLOSED' ) ||
493: ( $status eq 'UNCHECKEDOUT') ||
1.252 ! albertel 494: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 495: ( $status eq 'BANNED') ||
1.216 albertel 496: ( $status eq 'UNAVAILABLE') ||
497: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 498: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
499: if ( $target eq "web" ) {
500: $result.= $head_tag_start.'</head>';
501: my $msg=$body_tag_start;
502: if ($status eq 'UNAVAILABLE') {
1.245 albertel 503: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.159 albertel 504: } else {
1.245 albertel 505: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 506: }
1.216 albertel 507: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 508: $msg.='The problem '.$accessmsg;
509: } elsif ($status eq 'UNCHECKEDOUT') {
510: $msg.=&checkout_msg;
1.252 ! albertel 511: } elsif ($status eq 'NOT_YET_VIEWED') {
! 512: $msg.=&firstaccess_msg($accessmsg);
1.159 albertel 513: }
514: $result.=$msg.'<br />';
515: } elsif ($target eq 'tex') {
516: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
517: if ($status eq 'UNAVAILABLE') {
1.211 albertel 518: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 519: } else {
1.211 albertel 520: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 521: }
522: }
523: } elsif ($target eq 'web') {
524: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 525: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 526: $body_tag_start \n $form_tag_start".
1.227 albertel 527: '<input type="hidden" name="submitted" value="yes" />';
528: # create a page header and exit
529: if ($ENV{'request.state'} eq "construct") {
530: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
531: }
532: # if we are viewing someone else preserve that info
533: if (defined $ENV{'form.grade_symb'}) {
534: foreach my $field ('symb','courseid','domain','username') {
535: $result .= '<input type="hidden" name="grade_'.$field.
536: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 537: }
538: }
539: } elsif ($target eq 'tex') {
1.192 sakharuk 540: my $startminipage = '';
1.191 sakharuk 541: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 542: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 543: }
1.159 albertel 544: my $id = $Apache::inputtags::part;
545: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 546: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
547: my @packages = split /,/,$packages;
548: my $allow_print_points = 0;
549: foreach my $partial_key (@packages) {
1.230 albertel 550: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 551: $allow_print_points=1;
1.159 albertel 552: }
553: }
554: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
555: $duedate = POSIX::strftime("%c",localtime($duedate));
556: my $temp_file;
557: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
558: if (-e $filename) {
559: $temp_file = Apache::File->new($filename);
560: } else {
561: $temp_file = Apache::File->new('>>'.$filename);
562: }
563: my @due_file_content = <$temp_file>;
564: my $due_file_content = $due_file_content[$#due_file_content];
565: chomp $due_file_content;
1.231 sakharuk 566: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval));
1.159 albertel 567: if ($due_file_content ne $duedate) {
568: $temp_file = Apache::File->new('>'.$filename);
569: print $temp_file "$duedate\n";
570: if (not $ENV{'request.symb'} =~ m/\.page_/) {
571: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 572: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 573: } else {
1.206 sakharuk 574: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 575: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
576: }
1.104 sakharuk 577: } else {
1.159 albertel 578: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 579: }
1.101 sakharuk 580: } else {
1.159 albertel 581: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 582: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 583: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
584: } else {
585: $result .= '\vskip 1mm \\\\\\\\';
586: }
587: }
1.99 sakharuk 588: }
1.159 albertel 589: } elsif ($target eq 'edit') {
590: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
591: &problem_edit_header();
1.226 albertel 592: $Apache::lonxml::warnings_error_header=
593: &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 594: my $temp=&Apache::edit::insertlist($target,$token);
595: $result.=$temp;
596: } elsif ($target eq 'modified') {
597: $result=$token->[4];
598: $result.=&Apache::edit::handle_insert();
599: } else {
600: # page_start returned a starting result, delete it if we don't need it
601: $result = '';
1.99 sakharuk 602: }
1.159 albertel 603: return $result;
1.9 albertel 604: }
605:
606: sub end_problem {
1.159 albertel 607: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
608: my $result='';
609: my $status=$Apache::inputtags::status['-1'];
610: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
611: $target eq 'tex') {
1.249 albertel 612: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 613: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 614: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
615: &Apache::inputtags::grade;
616: } else {
617: # move any submission data to .hidden
618: &Apache::inputtags::hidealldata($Apache::inputtags::part);
619: }
1.159 albertel 620: } elsif ( ($target eq 'web' || $target eq 'tex') &&
621: $Apache::inputtags::part eq '0' &&
1.252 ! albertel 622: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 623: # if part is zero, no <part>s existed, so we need show the current
624: # grading status
625: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
626: $result.= $gradestatus;
627: }
628: if (
629: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
630: ($target eq 'answer') || ($target eq 'tex')
631: ) {
1.227 albertel 632: if ($target ne 'tex' &&
633: $ENV{'form.answer_output_mode'} ne 'tex') {
634: $result.="</form></body>\n";
1.159 albertel 635: }
636: if ($target eq 'web') {
637: $result.=&Apache::lonxml::xmlend();
638: } elsif ($target eq 'tex') {
1.178 sakharuk 639: my $endminipage = '';
1.191 sakharuk 640: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 641: $endminipage = '\end{minipage}';
642: }
1.174 sakharuk 643: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 644: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 645: $result .= $endminipage.'\end{document} ';
1.159 albertel 646: } else {
647: $result .= '';
648: }
649: }
650: }
651: if ($target eq 'grade') {
652: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
653: &finalize_storage();
654: }
1.172 albertel 655: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 656: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 657: $result.='</html>'; # normally we get it from xmlend, but in CSTR
658: # we always show answer mode too.
1.159 albertel 659: }
660: } elsif ($target eq 'meta') {
661: if ($Apache::inputtags::part eq '0') {
1.179 albertel 662: @Apache::inputtags::response=();
1.159 albertel 663: $result=&Apache::response::mandatory_part_meta;
664: }
1.215 albertel 665: $result.=&Apache::response::meta_part_order();
1.159 albertel 666: } elsif ($target eq 'edit') {
667: &Apache::lonxml::debug("in end_problem with $target, edit");
668: $result = &problem_edit_footer();
669: }
1.155 albertel 670:
1.177 albertel 671: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
672: &Apache::inputtags::check_for_duplicate_ids();
673: }
1.204 albertel 674:
675: &reset_problem_globals('problem');
1.159 albertel 676:
677: return $result;
1.48 albertel 678: }
679:
1.108 albertel 680:
1.48 albertel 681: sub start_library {
1.159 albertel 682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
683: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 684: if ($$tagstack[0] eq 'library') {
685: &init_problem_globals('library');
686: $Apache::lonhomework::type='problem';
687: }
1.159 albertel 688: if ($target eq 'edit') {
689: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
690: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
691: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
692: &problem_edit_header();
693: my $temp=&Apache::edit::insertlist($target,$token);
694: $result.=$temp;
695: } elsif ($target eq 'modified') {
696: $result=$token->[4];
697: $result.=&Apache::edit::handle_insert();
698: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
699: $ENV{'request.state'} eq "construct" ) {
700: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
701: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
702: my $name=&get_resource_name($parstack,$safeeval);
703: my $rndseed=&setup_rndseed($safeeval);
704: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 705: $body_tag_start \n $form_tag_start".
1.159 albertel 706: '<input type="hidden" name="submitted" value="yes" />';
707: $result.=&problem_web_to_edit_header($rndseed);
708: }
709: return $result;
1.48 albertel 710: }
711:
712: sub end_library {
1.159 albertel 713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
714: my $result='';
715: if ($target eq 'edit') {
716: $result=&problem_edit_footer();
717: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
718: $ENV{'request.state'} eq "construct") {
719: $result.='</form></body>'.&Apache::lonxml::xmlend();
720: }
1.204 albertel 721: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 722: return $result;
1.197 www 723: }
724:
725: sub start_definetag {
726: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
727:
728: my $result;
729:
730: my $name = $token->[2]->{'name'};
731: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
732: if ($name=~/^\//) {
733: $result=
734: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
735: } else {
736: $result=
737: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
738: }
739: $skip=~s/\</\<\;/gs;
740: $skip=~s/\>/\>\;/gs;
741: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
742: return $result;
743: }
744:
745: sub end_definetag {
746: return '';
1.1 albertel 747: }
748:
749: sub start_block {
1.201 albertel 750: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 751:
752: my $result;
1.1 albertel 753:
1.160 albertel 754: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 755: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 756: my $code = $token->[2]->{'condition'};
1.201 albertel 757: if (defined($code)) {
1.137 albertel 758: if (!$Apache::lonxml::default_homework_loaded) {
759: &Apache::lonxml::default_homework_load($safeeval);
760: }
1.131 albertel 761: $result = &Apache::run::run($code,$safeeval);
762: &Apache::lonxml::debug("block :$code: returned :$result:");
763: } else {
764: $result='1';
765: }
766: if ( ! $result ) {
1.201 albertel 767: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 768: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
769: }
770: $result='';
771: } elsif ($target eq 'edit') {
772: $result .=&Apache::edit::tag_start($target,$token);
773: $result .=&Apache::edit::text_arg('Test Condition:','condition',
774: $token,40);
775: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
776: } elsif ($target eq 'modified') {
777: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
778: $safeeval,'condition');
779: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 780: }
1.131 albertel 781: return $result;
1.1 albertel 782: }
783:
784: sub end_block {
1.167 www 785: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
786: my $result;
787: if ($target eq "edit") {
788: $result.= &Apache::edit::tag_end($target,$token,'');
789: }
790: return $result;
791: }
792:
793: sub start_languageblock {
1.201 albertel 794: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 795:
796: my $result;
797:
798: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
799: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 800: my $include = $token->[2]->{'include'};
801: my $exclude = $token->[2]->{'exclude'};
802: my %languages=&Apache::loncommon::display_languages();
803: $result='1';
804: if ($include) {
805: $result='';
806: foreach (split(/\,/,$include)) {
807: if ($languages{$_}) { $result='1'; }
808: }
809: }
810: if ($exclude) {
811: foreach (split(/\,/,$exclude)) {
812: if ($languages{$_}) { $result='0'; }
813: }
814: }
815: if ( ! $result ) {
816: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
817: $style);
818: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
819: }
820: $result='';
1.167 www 821: } elsif ($target eq 'edit') {
822: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 823: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 824: $token,40);
1.211 albertel 825: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 826: $token,40);
827: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
828: } elsif ($target eq 'modified') {
829: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 830: $safeeval,'include',
831: 'exclude');
1.167 www 832: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
833: }
834: return $result;
835: }
836:
837: sub end_languageblock {
1.170 www 838: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
839: my $result;
1.201 albertel 840: if ($target eq "edit") {
1.170 www 841: $result.= &Apache::edit::tag_end($target,$token,'');
842: }
843: return $result;
844: }
845:
846: sub start_instructorcomment {
1.201 albertel 847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 848:
849: my $result;
850:
851: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
852: $target eq 'tex' || $target eq 'analyze') {
853: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
854: if ( ! $result ) {
1.201 albertel 855: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
856: $parser,$style);
1.170 www 857: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
858: }
859: $result='';
860: } elsif ($target eq 'edit') {
861: $result .=&Apache::edit::tag_start($target,$token);
862: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
863: }
864: return $result;
865: }
866:
867: sub end_instructorcomment {
1.159 albertel 868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 869: my $result;
870: if ($target eq "edit") {
871: $result.= &Apache::edit::tag_end($target,$token,'');
872: }
873: return $result;
1.4 tsai 874: }
875:
876: sub start_while {
1.159 albertel 877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
878:
1.160 albertel 879: my $result;
1.161 albertel 880: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 881: $target eq 'tex' || $target eq 'analyze') {
882: my $code = $token->[2]->{'condition'};
1.4 tsai 883:
1.160 albertel 884: push( @Apache::structuretags::whileconds, $code);
885: if (!$Apache::lonxml::default_homework_loaded) {
886: &Apache::lonxml::default_homework_load($safeeval);
887: }
888: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 889: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 890: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 891: push( @Apache::structuretags::whileline, $token->[5]);
892: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 893: if ( $result ) {
894: &Apache::lonxml::newparser($parser,\$bodytext);
895: }
896: } elsif ($target eq 'edit') {
897: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 898: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 899: $token,40);
900: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
901: } elsif ($target eq 'modified') {
902: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
903: $safeeval,'condition');
904: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 905: }
1.160 albertel 906: return $result;
1.4 tsai 907: }
908:
909: sub end_while {
1.159 albertel 910: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 911: my $result;
912:
913: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
914: $target eq 'tex' || $target eq 'analyze') {
915: my $code = pop(@Apache::structuretags::whileconds);
916: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 917: my $line = pop(@Apache::structuretags::whileline);
918: my $return = &Apache::run::run($code,$safeeval);
919: my $starttime=time;
920: my $error=0;
921: while ($return) {
922: if (time-$starttime >
923: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
924: $return = 0; $error=1; next;
925: }
926: $result.=&Apache::scripttag::xmlparse($bodytext);
927: $return = &Apache::run::run($code,$safeeval);
928: }
929: if ($error) {
1.211 albertel 930: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while$gt; on line').' '.$line.'</pre>');
1.160 albertel 931: }
932: } elsif ($target eq "edit") {
933: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 934: }
1.160 albertel 935: return $result;
1.1 albertel 936: }
1.6 tsai 937:
1.160 albertel 938: # <randomlist show="1">
1.6 tsai 939: # <tag1>..</tag1>
940: # <tag2>..</tag2>
941: # <tag3>..</tag3>
1.160 albertel 942: # ...
1.6 tsai 943: # </randomlist>
944: sub start_randomlist {
1.159 albertel 945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
946: my $result;
947: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
948: $target eq 'tex' || $target eq 'analyze') {
949: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
950: my $b_parser= HTML::TokeParser->new(\$body);
951: my $b_tok;
952: my @randomlist;
953: my $list_item;
954: while($b_tok = $b_parser->get_token() ) {
955: if($b_tok->[0] eq 'S') { # start tag
956: # get content of the tag until matching end tag
957: # get all text upto the matching tag
958: # and push the content into @randomlist
959: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
960: $b_parser);
961: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
962: push(@randomlist,$list_item);
963: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
964: # $list_item</b>";
965: }
966: if($b_tok->[0] eq 'T') { # text
967: # what to do with text in between tags?
968: # print "<b>TEXT $b_tok->[1]</b><br />";
969: }
970: # if($b_tok->[0] eq 'E') { # end tag, should not happen
971: # print "<b>END-TAG $b_tok->[1]</b><br />";
972: # }
973: }
974: my @idx_arr = (0 .. $#randomlist);
975: &Apache::structuretags::shuffle(\@idx_arr);
976: my $bodytext = '';
977: my $show=$#randomlist;
978: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
979: $showarg--;
980: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
981: for(0 .. $show) {
982: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
983: }
984: &Apache::lonxml::newparser($parser,\$bodytext);
985: } elsif ($target eq 'edit' ) {
986: $result .=&Apache::edit::tag_start($target,$token);
987: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
988: $token,5);
989: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
990: } elsif ($target eq 'modified' ) {
991: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
992: $safeeval,'show');
993: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
994: }
995: return $result;
1.7 tsai 996: }
997:
998: sub shuffle {
999: my $a=shift;
1000: my $i;
1.70 albertel 1001: if (defined(@$a)) {
1.251 albertel 1002: &Apache::response::pushrandomnumber();
1.159 albertel 1003: for($i=@$a;--$i;) {
1004: my $j=int(&Math::Random::random_uniform() * ($i+1));
1005: next if $i == $j;
1006: @$a[$i,$j] = @$a[$j,$i];
1007: }
1.251 albertel 1008: &Apache::response::poprandomnumber();
1.7 tsai 1009: }
1.6 tsai 1010: }
1011:
1012: sub end_randomlist {
1.159 albertel 1013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1014: my $result;
1015: if ($target eq 'edit' ) {
1016: $result=&Apache::edit::tag_end($target,$token,
1017: 'End Randomly Parsed Block');
1018: }
1019: return $result;
1.6 tsai 1020: }
1021:
1.11 albertel 1022: sub start_part {
1.159 albertel 1023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1024: my $result='';
1025: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1026: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1027: $Apache::inputtags::part=$id;
1.177 albertel 1028: push(@Apache::inputtags::partlist,$id);
1029: @Apache::inputtags::response=();
1.159 albertel 1030: @Apache::inputtags::previous=();
1031: @Apache::inputtags::previous_version=();
1.241 albertel 1032: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1033: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.214 albertel 1034: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.209 albertel 1035: &Apache::run::run($expression,$safeeval);
1.159 albertel 1036:
1037: if ($target eq 'meta') {
1.224 www 1038: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1039: return &Apache::response::mandatory_part_meta.
1040: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1041: } elsif ($target eq 'web' || $target eq 'grade' ||
1042: $target eq 'answer' || $target eq 'tex') {
1043: if ($hidden) {
1044: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1045: } else {
1046: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1047: push (@Apache::inputtags::status,$status);
1048: my $expression='$external::datestatus="'.$status.'";';
1049: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1050: &Apache::run::run($expression,$safeeval);
1.240 albertel 1051: if ($ENV{'request.state'} eq 'construct') {
1.241 albertel 1052: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1053: }
1.216 albertel 1054: if (( $status eq 'CLOSED' ) ||
1055: ( $status eq 'UNCHECKEDOUT') ||
1.252 ! albertel 1056: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1057: ( $status eq 'BANNED') ||
1058: ( $status eq 'UNAVAILABLE') ||
1059: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1060: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1061: if ( $target eq "web" ) {
1.211 albertel 1062: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1063: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1064: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1065: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1066: } else {
1.211 albertel 1067: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1068: }
1.159 albertel 1069: }
1070: } else {
1071: if ($target eq 'tex') {
1.195 sakharuk 1072: if (not $ENV{'form.problem_split'}=~/yes/) {
1073: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1074: }
1.159 albertel 1075: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1076: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1077: my @allkeys = split /,/,$allkeys;
1078: my $allow_print_points = 0;
1079: foreach my $partial_key (@allkeys) {
1.230 albertel 1080: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1081: if ($1 ne '0') {$allow_print_points=1;}
1082: }
1083: }
1084: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1085: } elsif ($target eq 'web') {
1086: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1087: }
1088: }
1089: }
1090: } elsif ($target eq 'edit') {
1091: $result.=&Apache::edit::tag_start($target,$token);
1092: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1093: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1094: ' '.
1095: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1096: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1097: } elsif ($target eq 'modified') {
1098: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1099: $safeeval,'id','display');
1.159 albertel 1100: if ($constructtag) {
1.225 albertel 1101: #limiting ids to only letters numbers, and space
1.224 www 1102: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1103: $result = &Apache::edit::rebuild_tag($token);
1104: $result.=&Apache::edit::handle_insert();
1105: }
1106: }
1107: return $result;
1.11 albertel 1108: }
1109:
1110: sub end_part {
1.159 albertel 1111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1112: &Apache::lonxml::debug("in end_part $target ");
1113: my $status=$Apache::inputtags::status['-1'];
1114: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1115: my $result='';
1116: if ( $target eq 'meta' ) {
1117: $result='';
1.249 albertel 1118: } elsif ($target eq 'grade') {
1119: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1120: !$hidden) {
1121: $result=&Apache::inputtags::grade;
1122: } else {
1123: # move any submission data to .hidden
1124: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1125: }
1.159 albertel 1126: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1127: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1128: $target);
1.212 albertel 1129: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1130: $gradestatus='';
1131: }
1.159 albertel 1132: $result=$gradestatus;
1.181 albertel 1133: } elsif ($target eq 'edit') {
1134: $result=&Apache::edit::end_table();
1.159 albertel 1135: }
1136: pop @Apache::inputtags::status;
1137: $Apache::inputtags::part='';
1138: return $result;
1.11 albertel 1139: }
1.1 albertel 1140:
1.25 albertel 1141: sub start_preduedate {
1.159 albertel 1142: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1143: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1144: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1145: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1146: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1147: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1148: &Apache::lonxml::get_all_text("/preduedate",$parser);
1149: }
1.24 albertel 1150: }
1.159 albertel 1151: return '';
1.24 albertel 1152: }
1153:
1.25 albertel 1154: sub end_preduedate {
1.159 albertel 1155: return '';
1.24 albertel 1156: }
1157:
1.25 albertel 1158: sub start_postanswerdate {
1.159 albertel 1159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1160: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1161: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1162: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1163: }
1164: } elsif ($target eq 'tex') {
1.234 albertel 1165: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1166: }
1167: return '';
1.24 albertel 1168: }
1169:
1.25 albertel 1170: sub end_postanswerdate {
1.159 albertel 1171: return '';
1.24 albertel 1172: }
1173:
1.25 albertel 1174: sub start_notsolved {
1.159 albertel 1175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1176: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1177: $target eq 'tex') {
1178: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1179: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1180: if ($gradestatus =~ /^correct/ &&
1181: &Apache::response::show_answer()) {
1.159 albertel 1182: &Apache::lonxml::debug("skipping");
1183: &Apache::lonxml::get_all_text("/notsolved",$parser);
1184: }
1.24 albertel 1185: }
1.159 albertel 1186: return '';
1.24 albertel 1187: }
1188:
1.25 albertel 1189: sub end_notsolved {
1.159 albertel 1190: return '';
1.24 albertel 1191: }
1192:
1193: sub start_solved {
1.159 albertel 1194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1195: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1196: $target eq 'tex') {
1197: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1198: if ($gradestatus !~ /^correct/ ||
1199: !&Apache::response::show_answer()) {
1.159 albertel 1200: &Apache::lonxml::get_all_text("/solved",$parser);
1201: }
1.24 albertel 1202: }
1.159 albertel 1203: return '';
1.24 albertel 1204: }
1205:
1206: sub end_solved {
1.248 albertel 1207: return '';
1208: }
1209:
1210: sub start_problemtype {
1211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1212: my $result;
1213: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1214: $target eq 'tex' || $target eq 'analyze') {
1215: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1216: if (!defined($mode)) { $mode='show'; }
1217: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1218: my $found=0;
1219: foreach my $type (split(',',$for)) {
1220: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1221: }
1222: if ($mode eq 'show' && !$found) {
1223: &Apache::lonxml::get_all_text("/problemtype",$parser);
1224: }
1225: if ($mode eq 'hide' && $found) {
1226: &Apache::lonxml::get_all_text("/problemtype",$parser);
1227: }
1228: } elsif ($target eq 'edit') {
1229: $result .=&Apache::edit::tag_start($target,$token);
1230: $result.=&Apache::edit::select_arg('Mode:','mode',
1231: [['show','Show'],
1232: ['hide','Hide']]
1233: ,$token);
1234: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1235: [ ['exam','Exam/Quiz Problem'],
1236: ['survey','Survey'],
1237: ['problem','Homework Problem'] ]
1238: ,$token);
1239: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1240: } elsif ($target eq 'modified') {
1241: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1242: $safeeval,'mode','for');
1243: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1244: }
1245: return $result;
1246: }
1247:
1248: sub end_problemtype {
1.159 albertel 1249: return '';
1.24 albertel 1250: }
1.34 albertel 1251:
1252: sub start_startouttext {
1.159 albertel 1253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1254: my @result=(''.'');
1255: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1256: return (@result);
1.34 albertel 1257: }
1.159 albertel 1258:
1.34 albertel 1259: sub end_startouttext {
1.159 albertel 1260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1261: my $result='';
1262: my $text='';
1263:
1264: if ($target eq 'edit') {
1265: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1266: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1267: <td>".&mt('Delete:').
1.159 albertel 1268: &Apache::edit::deletelist($target,$token)
1269: ."</td>
1.42 albertel 1270: <td>".
1.159 albertel 1271: &Apache::edit::insertlist($target,$token).
1272: &Apache::edit::end_row().
1273: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1274: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1275: &Apache::edit::editfield($token->[1],$text,"",80,4);
1276: }
1277: if ($target eq 'modified') {
1.219 albertel 1278: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1279: }
1280: if ($target eq 'tex') {
1281: $result .= '\noindent ';
1282: }
1283: return $result;
1.34 albertel 1284: }
1.159 albertel 1285:
1.34 albertel 1286: sub start_endouttext {
1.159 albertel 1287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1288: my $result='';
1289: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1290: if ($target eq "modified") {
1291: $result='<endouttext />'.
1292: &Apache::edit::handle_insertafter('startouttext'); }
1293: return $result;
1.34 albertel 1294: }
1.159 albertel 1295:
1.34 albertel 1296: sub end_endouttext {
1.159 albertel 1297: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1298: my @result=('','');
1299: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1300: return (@result);
1.34 albertel 1301: }
1.159 albertel 1302:
1.45 albertel 1303: sub delete_startouttext {
1.159 albertel 1304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1305: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1306: my $text=$$parser['-1']->get_text("/endouttext");
1307: my $ntoken=$$parser['-1']->get_token();
1308: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1309: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1310: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1311: # they did the last time round
1312: &Apache::lonxml::increasedepth($ntoken);
1313: &Apache::lonxml::decreasedepth($ntoken);
1314: return 1;
1.193 www 1315: }
1316:
1317: sub start_simpleeditbutton {
1318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1319: my $result='';
1320: if (($target eq 'web') &&
1321: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1322: my $url=$ENV{'request.noversionuri'};
1.193 www 1323: $url=~s/\?.*$//;
1.194 www 1324: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1325: '<a href="'.$url.'/smpedit">'.&mt('Simple Problem Editor').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1326: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1327: }
1328: return $result;
1329: }
1330:
1331: sub end_simpleeditbutton {
1332: return '';
1.45 albertel 1333: }
1.34 albertel 1334:
1.1 albertel 1335: 1;
1336: __END__
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