Annotation of loncom/homework/structuretags.pm, revision 1.253
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.253 ! albertel 4: # $Id: structuretags.pm,v 1.252 2004/05/27 22:25:16 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('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 333: </form>
334: ENDCHECKOUT
335: }
336:
1.252 albertel 337: sub firstaccess_msg {
1.253 ! albertel 338: my ($time,$symb)=@_;
! 339: my ($map)=&Apache::lonnet::decode_symb($symb);
! 340: my $foldertitle=&Apache::lonnet::gettitle($map);
! 341: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 342: return (<<ENDCHECKOUT);
1.253 ! albertel 343: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.252 albertel 344: <form name="markaccess" method="POST" action="$ENV{'request.uri'}">
345: <input type="hidden" name="markaccess" value="yes" />
346: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
347: </form>
348: ENDCHECKOUT
349: }
350:
1.204 albertel 351: sub init_problem_globals {
352: my ($type)=@_;
353: #initialize globals
354: if ($type eq 'problem') {
355: $Apache::inputtags::part='0';
356: @Apache::inputtags::partlist=('0');
1.241 albertel 357:
358: $Apache::lonhomework::problemstatus=&get_problem_status('0')
1.204 albertel 359: } else {
360: $Apache::inputtags::part='';
361: @Apache::inputtags::partlist=();
362: $Apache::lonhomework::problemstatus='';
363: }
364: @Apache::inputtags::responselist = ();
365: @Apache::inputtags::importlist = ();
366: @Apache::inputtags::previous=();
367: @Apache::inputtags::previous_version=();
368: $Apache::structuretags::printanswer='No';
369: @Apache::structuretags::whileconds=();
370: @Apache::structuretags::whilebody=();
371: @Apache::structuretags::whileline=();
372: $Apache::lonhomework::scantronmode=0;
373: undef($Apache::lonhomework::name);
374:
375: }
376:
377: sub reset_problem_globals {
378: my ($type)=@_;
379: undef(%Apache::lonhomework::history);
380: undef(%Apache::lonhomework::results);
381: undef($Apache::inputtags::part);
1.208 albertel 382: #don't undef this, lonhomework.pm takes care of this, we use this to
383: #detect if we try to do 2 problems in one file
384: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 385: undef($Apache::lonhomework::name);
386: }
387:
1.241 albertel 388: sub set_problem_state {
1.240 albertel 389: my ($part)=@_;
390: if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
391: $Apache::lonhomework::history{"resource.$part.solved"}=
392: 'correct_by_student';
393: }
394: }
395:
1.241 albertel 396: sub get_problem_status {
397: my ($part)=@_;
398: my $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
399: &Apache::lonxml::debug("problem status for $part is $problem_status");
400: &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
401: if ($ENV{'request.state'} eq 'construct' &&
402: defined($ENV{'form.problemstatus'})) {
403: $problem_status=$ENV{'form.problemstatus'};
404: }
405: return $problem_status;
406: }
407:
1.9 albertel 408: sub start_problem {
1.159 albertel 409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 410:
1.184 albertel 411: if ( $Apache::inputtags::part ne '' ||
412: $Apache::lonhomework::parsing_a_problem) {
413: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
414: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 415: return '';
416: }
1.184 albertel 417:
418: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 419: &init_problem_globals('problem');
1.166 albertel 420:
421: if (defined($ENV{'scantron.maxquest'})) {
422: $Apache::lonhomework::scantronmode=1;
423: }
1.161 albertel 424:
1.246 albertel 425: &initialize_storage();
1.159 albertel 426: if ($target ne 'analyze') {
427: if ($target eq 'web') {
428: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 429: }
1.241 albertel 430: if ($ENV{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 431: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.237 albertel 432: if (($ENV{'request.state'} eq 'construct') &&
433: defined($ENV{'form.problemtype'})) {
434: $Apache::lonhomework::type=$ENV{'form.problemtype'};
435: }
1.240 albertel 436: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 437: }
1.164 albertel 438: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 439: my $uri=$ENV{'request.uri'};
440: if ($uri=~/\.(\w+)$/) {
441: $Apache::lonhomework::type=$1;
442: &Apache::lonxml::debug("Using type of $1");
443: } else {
444: $Apache::lonhomework::type='problem';
445: &Apache::lonxml::debug("Using default type, problem, :$uri:");
446: }
1.87 albertel 447: }
1.58 www 448:
1.159 albertel 449: #added vars to the scripting enviroment
1.213 albertel 450: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 451: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 452: &Apache::run::run($expression,$safeeval);
1.159 albertel 453: my $status;
454: my $accessmsg;
455:
456: #should get back a <html> or the neccesary stuff to start XML/MathML
457: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
458: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
459: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
460:
461: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
462: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
463: $target eq 'tex') {
464: #handle exam checkout
465: if ($Apache::lonhomework::type eq 'exam') {
466: my $token=
467: $Apache::lonhomework::history{"resource.0.outtoken"};
468: if (($ENV{'form.doescheckout'}) && (!$token)) {
469: $token=&Apache::lonxml::maketoken();
470: $Apache::lonhomework::history{"resource.0.outtoken"}=
471: $token;
472: }
473: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 474: }
1.252 albertel 475: if ($ENV{'form.markaccess'}) {
476: &Apache::lonnet::set_first_access('map');
477: }
1.159 albertel 478: #handle rand seed in construction space
479: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 480: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 481: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 482: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
483: $rndseed.'" />'.
484: '<input type="submit" name="resetdata"
1.211 albertel 485: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 486: '<input type="hidden" name="username"
1.185 albertel 487: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 488: }
1.159 albertel 489: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
490: push (@Apache::inputtags::status,$status);
491: my $expression='$external::datestatus="'.$status.'";';
492: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
493: &Apache::run::run($expression,$safeeval);
494: &Apache::lonxml::debug("Got $status");
495: if (( $status eq 'CLOSED' ) ||
496: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 497: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 498: ( $status eq 'BANNED') ||
1.216 albertel 499: ( $status eq 'UNAVAILABLE') ||
500: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 501: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
502: if ( $target eq "web" ) {
503: $result.= $head_tag_start.'</head>';
504: my $msg=$body_tag_start;
505: if ($status eq 'UNAVAILABLE') {
1.245 albertel 506: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 ! albertel 507: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 508: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 509: }
1.216 albertel 510: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 511: $msg.='The problem '.$accessmsg;
512: } elsif ($status eq 'UNCHECKEDOUT') {
513: $msg.=&checkout_msg;
1.252 albertel 514: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 ! albertel 515: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 516: }
517: $result.=$msg.'<br />';
518: } elsif ($target eq 'tex') {
519: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
520: if ($status eq 'UNAVAILABLE') {
1.211 albertel 521: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 522: } else {
1.211 albertel 523: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 524: }
525: }
526: } elsif ($target eq 'web') {
527: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 528: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 529: $body_tag_start \n $form_tag_start".
1.227 albertel 530: '<input type="hidden" name="submitted" value="yes" />';
531: # create a page header and exit
532: if ($ENV{'request.state'} eq "construct") {
533: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
534: }
535: # if we are viewing someone else preserve that info
536: if (defined $ENV{'form.grade_symb'}) {
537: foreach my $field ('symb','courseid','domain','username') {
538: $result .= '<input type="hidden" name="grade_'.$field.
539: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 540: }
541: }
542: } elsif ($target eq 'tex') {
1.192 sakharuk 543: my $startminipage = '';
1.191 sakharuk 544: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 545: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 546: }
1.159 albertel 547: my $id = $Apache::inputtags::part;
548: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 549: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
550: my @packages = split /,/,$packages;
551: my $allow_print_points = 0;
552: foreach my $partial_key (@packages) {
1.230 albertel 553: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 554: $allow_print_points=1;
1.159 albertel 555: }
556: }
557: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
558: $duedate = POSIX::strftime("%c",localtime($duedate));
559: my $temp_file;
560: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
561: if (-e $filename) {
562: $temp_file = Apache::File->new($filename);
563: } else {
564: $temp_file = Apache::File->new('>>'.$filename);
565: }
566: my @due_file_content = <$temp_file>;
567: my $due_file_content = $due_file_content[$#due_file_content];
568: chomp $due_file_content;
1.231 sakharuk 569: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval));
1.159 albertel 570: if ($due_file_content ne $duedate) {
571: $temp_file = Apache::File->new('>'.$filename);
572: print $temp_file "$duedate\n";
573: if (not $ENV{'request.symb'} =~ m/\.page_/) {
574: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 575: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 576: } else {
1.206 sakharuk 577: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 578: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
579: }
1.104 sakharuk 580: } else {
1.159 albertel 581: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 582: }
1.101 sakharuk 583: } else {
1.159 albertel 584: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 585: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 586: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
587: } else {
588: $result .= '\vskip 1mm \\\\\\\\';
589: }
590: }
1.99 sakharuk 591: }
1.159 albertel 592: } elsif ($target eq 'edit') {
593: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
594: &problem_edit_header();
1.226 albertel 595: $Apache::lonxml::warnings_error_header=
596: &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 597: my $temp=&Apache::edit::insertlist($target,$token);
598: $result.=$temp;
599: } elsif ($target eq 'modified') {
600: $result=$token->[4];
601: $result.=&Apache::edit::handle_insert();
602: } else {
603: # page_start returned a starting result, delete it if we don't need it
604: $result = '';
1.99 sakharuk 605: }
1.159 albertel 606: return $result;
1.9 albertel 607: }
608:
609: sub end_problem {
1.159 albertel 610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
611: my $result='';
612: my $status=$Apache::inputtags::status['-1'];
613: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
614: $target eq 'tex') {
1.249 albertel 615: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 616: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 617: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
618: &Apache::inputtags::grade;
619: } else {
620: # move any submission data to .hidden
621: &Apache::inputtags::hidealldata($Apache::inputtags::part);
622: }
1.159 albertel 623: } elsif ( ($target eq 'web' || $target eq 'tex') &&
624: $Apache::inputtags::part eq '0' &&
1.252 albertel 625: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 626: # if part is zero, no <part>s existed, so we need show the current
627: # grading status
628: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
629: $result.= $gradestatus;
630: }
631: if (
632: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
633: ($target eq 'answer') || ($target eq 'tex')
634: ) {
1.227 albertel 635: if ($target ne 'tex' &&
636: $ENV{'form.answer_output_mode'} ne 'tex') {
637: $result.="</form></body>\n";
1.159 albertel 638: }
639: if ($target eq 'web') {
640: $result.=&Apache::lonxml::xmlend();
641: } elsif ($target eq 'tex') {
1.178 sakharuk 642: my $endminipage = '';
1.191 sakharuk 643: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 644: $endminipage = '\end{minipage}';
645: }
1.174 sakharuk 646: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 647: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 648: $result .= $endminipage.'\end{document} ';
1.159 albertel 649: } else {
650: $result .= '';
651: }
652: }
653: }
654: if ($target eq 'grade') {
655: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
656: &finalize_storage();
657: }
1.172 albertel 658: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 659: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 660: $result.='</html>'; # normally we get it from xmlend, but in CSTR
661: # we always show answer mode too.
1.159 albertel 662: }
663: } elsif ($target eq 'meta') {
664: if ($Apache::inputtags::part eq '0') {
1.179 albertel 665: @Apache::inputtags::response=();
1.159 albertel 666: $result=&Apache::response::mandatory_part_meta;
667: }
1.215 albertel 668: $result.=&Apache::response::meta_part_order();
1.159 albertel 669: } elsif ($target eq 'edit') {
670: &Apache::lonxml::debug("in end_problem with $target, edit");
671: $result = &problem_edit_footer();
672: }
1.155 albertel 673:
1.177 albertel 674: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
675: &Apache::inputtags::check_for_duplicate_ids();
676: }
1.204 albertel 677:
678: &reset_problem_globals('problem');
1.159 albertel 679:
680: return $result;
1.48 albertel 681: }
682:
1.108 albertel 683:
1.48 albertel 684: sub start_library {
1.159 albertel 685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
686: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 687: if ($$tagstack[0] eq 'library') {
688: &init_problem_globals('library');
689: $Apache::lonhomework::type='problem';
690: }
1.159 albertel 691: if ($target eq 'edit') {
692: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
693: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
694: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
695: &problem_edit_header();
696: my $temp=&Apache::edit::insertlist($target,$token);
697: $result.=$temp;
698: } elsif ($target eq 'modified') {
699: $result=$token->[4];
700: $result.=&Apache::edit::handle_insert();
701: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
702: $ENV{'request.state'} eq "construct" ) {
703: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
704: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
705: my $name=&get_resource_name($parstack,$safeeval);
706: my $rndseed=&setup_rndseed($safeeval);
707: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 708: $body_tag_start \n $form_tag_start".
1.159 albertel 709: '<input type="hidden" name="submitted" value="yes" />';
710: $result.=&problem_web_to_edit_header($rndseed);
711: }
712: return $result;
1.48 albertel 713: }
714:
715: sub end_library {
1.159 albertel 716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
717: my $result='';
718: if ($target eq 'edit') {
719: $result=&problem_edit_footer();
720: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
721: $ENV{'request.state'} eq "construct") {
722: $result.='</form></body>'.&Apache::lonxml::xmlend();
723: }
1.204 albertel 724: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 725: return $result;
1.197 www 726: }
727:
728: sub start_definetag {
729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
730:
731: my $result;
732:
733: my $name = $token->[2]->{'name'};
734: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
735: if ($name=~/^\//) {
736: $result=
737: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
738: } else {
739: $result=
740: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
741: }
742: $skip=~s/\</\<\;/gs;
743: $skip=~s/\>/\>\;/gs;
744: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
745: return $result;
746: }
747:
748: sub end_definetag {
749: return '';
1.1 albertel 750: }
751:
752: sub start_block {
1.201 albertel 753: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 754:
755: my $result;
1.1 albertel 756:
1.160 albertel 757: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 758: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 759: my $code = $token->[2]->{'condition'};
1.201 albertel 760: if (defined($code)) {
1.137 albertel 761: if (!$Apache::lonxml::default_homework_loaded) {
762: &Apache::lonxml::default_homework_load($safeeval);
763: }
1.131 albertel 764: $result = &Apache::run::run($code,$safeeval);
765: &Apache::lonxml::debug("block :$code: returned :$result:");
766: } else {
767: $result='1';
768: }
769: if ( ! $result ) {
1.201 albertel 770: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 771: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
772: }
773: $result='';
774: } elsif ($target eq 'edit') {
775: $result .=&Apache::edit::tag_start($target,$token);
776: $result .=&Apache::edit::text_arg('Test Condition:','condition',
777: $token,40);
778: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
779: } elsif ($target eq 'modified') {
780: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
781: $safeeval,'condition');
782: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 783: }
1.131 albertel 784: return $result;
1.1 albertel 785: }
786:
787: sub end_block {
1.167 www 788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
789: my $result;
790: if ($target eq "edit") {
791: $result.= &Apache::edit::tag_end($target,$token,'');
792: }
793: return $result;
794: }
795:
796: sub start_languageblock {
1.201 albertel 797: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 798:
799: my $result;
800:
801: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
802: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 803: my $include = $token->[2]->{'include'};
804: my $exclude = $token->[2]->{'exclude'};
805: my %languages=&Apache::loncommon::display_languages();
806: $result='1';
807: if ($include) {
808: $result='';
809: foreach (split(/\,/,$include)) {
810: if ($languages{$_}) { $result='1'; }
811: }
812: }
813: if ($exclude) {
814: foreach (split(/\,/,$exclude)) {
815: if ($languages{$_}) { $result='0'; }
816: }
817: }
818: if ( ! $result ) {
819: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
820: $style);
821: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
822: }
823: $result='';
1.167 www 824: } elsif ($target eq 'edit') {
825: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 826: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 827: $token,40);
1.211 albertel 828: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 829: $token,40);
830: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
831: } elsif ($target eq 'modified') {
832: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 833: $safeeval,'include',
834: 'exclude');
1.167 www 835: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
836: }
837: return $result;
838: }
839:
840: sub end_languageblock {
1.170 www 841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
842: my $result;
1.201 albertel 843: if ($target eq "edit") {
1.170 www 844: $result.= &Apache::edit::tag_end($target,$token,'');
845: }
846: return $result;
847: }
848:
849: sub start_instructorcomment {
1.201 albertel 850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 851:
852: my $result;
853:
854: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
855: $target eq 'tex' || $target eq 'analyze') {
856: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
857: if ( ! $result ) {
1.201 albertel 858: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
859: $parser,$style);
1.170 www 860: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
861: }
862: $result='';
863: } elsif ($target eq 'edit') {
864: $result .=&Apache::edit::tag_start($target,$token);
865: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
866: }
867: return $result;
868: }
869:
870: sub end_instructorcomment {
1.159 albertel 871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 872: my $result;
873: if ($target eq "edit") {
874: $result.= &Apache::edit::tag_end($target,$token,'');
875: }
876: return $result;
1.4 tsai 877: }
878:
879: sub start_while {
1.159 albertel 880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
881:
1.160 albertel 882: my $result;
1.161 albertel 883: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 884: $target eq 'tex' || $target eq 'analyze') {
885: my $code = $token->[2]->{'condition'};
1.4 tsai 886:
1.160 albertel 887: push( @Apache::structuretags::whileconds, $code);
888: if (!$Apache::lonxml::default_homework_loaded) {
889: &Apache::lonxml::default_homework_load($safeeval);
890: }
891: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 892: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 893: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 894: push( @Apache::structuretags::whileline, $token->[5]);
895: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 896: if ( $result ) {
897: &Apache::lonxml::newparser($parser,\$bodytext);
898: }
899: } elsif ($target eq 'edit') {
900: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 901: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 902: $token,40);
903: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
904: } elsif ($target eq 'modified') {
905: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
906: $safeeval,'condition');
907: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 908: }
1.160 albertel 909: return $result;
1.4 tsai 910: }
911:
912: sub end_while {
1.159 albertel 913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 914: my $result;
915:
916: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
917: $target eq 'tex' || $target eq 'analyze') {
918: my $code = pop(@Apache::structuretags::whileconds);
919: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 920: my $line = pop(@Apache::structuretags::whileline);
921: my $return = &Apache::run::run($code,$safeeval);
922: my $starttime=time;
923: my $error=0;
924: while ($return) {
925: if (time-$starttime >
926: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
927: $return = 0; $error=1; next;
928: }
929: $result.=&Apache::scripttag::xmlparse($bodytext);
930: $return = &Apache::run::run($code,$safeeval);
931: }
932: if ($error) {
1.211 albertel 933: &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 934: }
935: } elsif ($target eq "edit") {
936: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 937: }
1.160 albertel 938: return $result;
1.1 albertel 939: }
1.6 tsai 940:
1.160 albertel 941: # <randomlist show="1">
1.6 tsai 942: # <tag1>..</tag1>
943: # <tag2>..</tag2>
944: # <tag3>..</tag3>
1.160 albertel 945: # ...
1.6 tsai 946: # </randomlist>
947: sub start_randomlist {
1.159 albertel 948: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
949: my $result;
950: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
951: $target eq 'tex' || $target eq 'analyze') {
952: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
953: my $b_parser= HTML::TokeParser->new(\$body);
954: my $b_tok;
955: my @randomlist;
956: my $list_item;
957: while($b_tok = $b_parser->get_token() ) {
958: if($b_tok->[0] eq 'S') { # start tag
959: # get content of the tag until matching end tag
960: # get all text upto the matching tag
961: # and push the content into @randomlist
962: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
963: $b_parser);
964: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
965: push(@randomlist,$list_item);
966: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
967: # $list_item</b>";
968: }
969: if($b_tok->[0] eq 'T') { # text
970: # what to do with text in between tags?
971: # print "<b>TEXT $b_tok->[1]</b><br />";
972: }
973: # if($b_tok->[0] eq 'E') { # end tag, should not happen
974: # print "<b>END-TAG $b_tok->[1]</b><br />";
975: # }
976: }
977: my @idx_arr = (0 .. $#randomlist);
978: &Apache::structuretags::shuffle(\@idx_arr);
979: my $bodytext = '';
980: my $show=$#randomlist;
981: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
982: $showarg--;
983: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
984: for(0 .. $show) {
985: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
986: }
987: &Apache::lonxml::newparser($parser,\$bodytext);
988: } elsif ($target eq 'edit' ) {
989: $result .=&Apache::edit::tag_start($target,$token);
990: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
991: $token,5);
992: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
993: } elsif ($target eq 'modified' ) {
994: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
995: $safeeval,'show');
996: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
997: }
998: return $result;
1.7 tsai 999: }
1000:
1001: sub shuffle {
1002: my $a=shift;
1003: my $i;
1.70 albertel 1004: if (defined(@$a)) {
1.251 albertel 1005: &Apache::response::pushrandomnumber();
1.159 albertel 1006: for($i=@$a;--$i;) {
1007: my $j=int(&Math::Random::random_uniform() * ($i+1));
1008: next if $i == $j;
1009: @$a[$i,$j] = @$a[$j,$i];
1010: }
1.251 albertel 1011: &Apache::response::poprandomnumber();
1.7 tsai 1012: }
1.6 tsai 1013: }
1014:
1015: sub end_randomlist {
1.159 albertel 1016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1017: my $result;
1018: if ($target eq 'edit' ) {
1019: $result=&Apache::edit::tag_end($target,$token,
1020: 'End Randomly Parsed Block');
1021: }
1022: return $result;
1.6 tsai 1023: }
1024:
1.11 albertel 1025: sub start_part {
1.159 albertel 1026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1027: my $result='';
1028: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1029: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1030: $Apache::inputtags::part=$id;
1.177 albertel 1031: push(@Apache::inputtags::partlist,$id);
1032: @Apache::inputtags::response=();
1.159 albertel 1033: @Apache::inputtags::previous=();
1034: @Apache::inputtags::previous_version=();
1.241 albertel 1035: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1036: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.214 albertel 1037: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.209 albertel 1038: &Apache::run::run($expression,$safeeval);
1.159 albertel 1039:
1040: if ($target eq 'meta') {
1.224 www 1041: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1042: return &Apache::response::mandatory_part_meta.
1043: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1044: } elsif ($target eq 'web' || $target eq 'grade' ||
1045: $target eq 'answer' || $target eq 'tex') {
1046: if ($hidden) {
1047: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1048: } else {
1049: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1050: push (@Apache::inputtags::status,$status);
1051: my $expression='$external::datestatus="'.$status.'";';
1052: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1053: &Apache::run::run($expression,$safeeval);
1.240 albertel 1054: if ($ENV{'request.state'} eq 'construct') {
1.241 albertel 1055: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1056: }
1.216 albertel 1057: if (( $status eq 'CLOSED' ) ||
1058: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1059: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1060: ( $status eq 'BANNED') ||
1061: ( $status eq 'UNAVAILABLE') ||
1062: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1063: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1064: if ( $target eq "web" ) {
1.211 albertel 1065: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1066: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1067: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1068: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1069: } else {
1.211 albertel 1070: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1071: }
1.159 albertel 1072: }
1073: } else {
1074: if ($target eq 'tex') {
1.195 sakharuk 1075: if (not $ENV{'form.problem_split'}=~/yes/) {
1076: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1077: }
1.159 albertel 1078: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1079: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1080: my @allkeys = split /,/,$allkeys;
1081: my $allow_print_points = 0;
1082: foreach my $partial_key (@allkeys) {
1.230 albertel 1083: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1084: if ($1 ne '0') {$allow_print_points=1;}
1085: }
1086: }
1087: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1088: } elsif ($target eq 'web') {
1089: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1090: }
1091: }
1092: }
1093: } elsif ($target eq 'edit') {
1094: $result.=&Apache::edit::tag_start($target,$token);
1095: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1096: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1097: ' '.
1098: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1099: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1100: } elsif ($target eq 'modified') {
1101: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1102: $safeeval,'id','display');
1.159 albertel 1103: if ($constructtag) {
1.225 albertel 1104: #limiting ids to only letters numbers, and space
1.224 www 1105: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1106: $result = &Apache::edit::rebuild_tag($token);
1107: $result.=&Apache::edit::handle_insert();
1108: }
1109: }
1110: return $result;
1.11 albertel 1111: }
1112:
1113: sub end_part {
1.159 albertel 1114: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1115: &Apache::lonxml::debug("in end_part $target ");
1116: my $status=$Apache::inputtags::status['-1'];
1117: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1118: my $result='';
1119: if ( $target eq 'meta' ) {
1120: $result='';
1.249 albertel 1121: } elsif ($target eq 'grade') {
1122: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1123: !$hidden) {
1124: $result=&Apache::inputtags::grade;
1125: } else {
1126: # move any submission data to .hidden
1127: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1128: }
1.159 albertel 1129: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1130: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1131: $target);
1.212 albertel 1132: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1133: $gradestatus='';
1134: }
1.159 albertel 1135: $result=$gradestatus;
1.181 albertel 1136: } elsif ($target eq 'edit') {
1137: $result=&Apache::edit::end_table();
1.159 albertel 1138: }
1139: pop @Apache::inputtags::status;
1140: $Apache::inputtags::part='';
1141: return $result;
1.11 albertel 1142: }
1.1 albertel 1143:
1.25 albertel 1144: sub start_preduedate {
1.159 albertel 1145: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1146: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1147: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1148: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1149: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1150: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1151: &Apache::lonxml::get_all_text("/preduedate",$parser);
1152: }
1.24 albertel 1153: }
1.159 albertel 1154: return '';
1.24 albertel 1155: }
1156:
1.25 albertel 1157: sub end_preduedate {
1.159 albertel 1158: return '';
1.24 albertel 1159: }
1160:
1.25 albertel 1161: sub start_postanswerdate {
1.159 albertel 1162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1163: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1164: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1165: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1166: }
1167: } elsif ($target eq 'tex') {
1.234 albertel 1168: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1169: }
1170: return '';
1.24 albertel 1171: }
1172:
1.25 albertel 1173: sub end_postanswerdate {
1.159 albertel 1174: return '';
1.24 albertel 1175: }
1176:
1.25 albertel 1177: sub start_notsolved {
1.159 albertel 1178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1179: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1180: $target eq 'tex') {
1181: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1182: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1183: if ($gradestatus =~ /^correct/ &&
1184: &Apache::response::show_answer()) {
1.159 albertel 1185: &Apache::lonxml::debug("skipping");
1186: &Apache::lonxml::get_all_text("/notsolved",$parser);
1187: }
1.24 albertel 1188: }
1.159 albertel 1189: return '';
1.24 albertel 1190: }
1191:
1.25 albertel 1192: sub end_notsolved {
1.159 albertel 1193: return '';
1.24 albertel 1194: }
1195:
1196: sub start_solved {
1.159 albertel 1197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1198: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1199: $target eq 'tex') {
1200: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1201: if ($gradestatus !~ /^correct/ ||
1202: !&Apache::response::show_answer()) {
1.159 albertel 1203: &Apache::lonxml::get_all_text("/solved",$parser);
1204: }
1.24 albertel 1205: }
1.159 albertel 1206: return '';
1.24 albertel 1207: }
1208:
1209: sub end_solved {
1.248 albertel 1210: return '';
1211: }
1212:
1213: sub start_problemtype {
1214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1215: my $result;
1216: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1217: $target eq 'tex' || $target eq 'analyze') {
1218: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1219: if (!defined($mode)) { $mode='show'; }
1220: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1221: my $found=0;
1222: foreach my $type (split(',',$for)) {
1223: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1224: }
1225: if ($mode eq 'show' && !$found) {
1226: &Apache::lonxml::get_all_text("/problemtype",$parser);
1227: }
1228: if ($mode eq 'hide' && $found) {
1229: &Apache::lonxml::get_all_text("/problemtype",$parser);
1230: }
1231: } elsif ($target eq 'edit') {
1232: $result .=&Apache::edit::tag_start($target,$token);
1233: $result.=&Apache::edit::select_arg('Mode:','mode',
1234: [['show','Show'],
1235: ['hide','Hide']]
1236: ,$token);
1237: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1238: [ ['exam','Exam/Quiz Problem'],
1239: ['survey','Survey'],
1240: ['problem','Homework Problem'] ]
1241: ,$token);
1242: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1243: } elsif ($target eq 'modified') {
1244: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1245: $safeeval,'mode','for');
1246: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1247: }
1248: return $result;
1249: }
1250:
1251: sub end_problemtype {
1.159 albertel 1252: return '';
1.24 albertel 1253: }
1.34 albertel 1254:
1255: sub start_startouttext {
1.159 albertel 1256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1257: my @result=(''.'');
1258: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1259: return (@result);
1.34 albertel 1260: }
1.159 albertel 1261:
1.34 albertel 1262: sub end_startouttext {
1.159 albertel 1263: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1264: my $result='';
1265: my $text='';
1266:
1267: if ($target eq 'edit') {
1268: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1269: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1270: <td>".&mt('Delete:').
1.159 albertel 1271: &Apache::edit::deletelist($target,$token)
1272: ."</td>
1.42 albertel 1273: <td>".
1.159 albertel 1274: &Apache::edit::insertlist($target,$token).
1275: &Apache::edit::end_row().
1276: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1277: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1278: &Apache::edit::editfield($token->[1],$text,"",80,4);
1279: }
1280: if ($target eq 'modified') {
1.219 albertel 1281: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1282: }
1283: if ($target eq 'tex') {
1284: $result .= '\noindent ';
1285: }
1286: return $result;
1.34 albertel 1287: }
1.159 albertel 1288:
1.34 albertel 1289: sub start_endouttext {
1.159 albertel 1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1291: my $result='';
1292: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1293: if ($target eq "modified") {
1294: $result='<endouttext />'.
1295: &Apache::edit::handle_insertafter('startouttext'); }
1296: return $result;
1.34 albertel 1297: }
1.159 albertel 1298:
1.34 albertel 1299: sub end_endouttext {
1.159 albertel 1300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1301: my @result=('','');
1302: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1303: return (@result);
1.34 albertel 1304: }
1.159 albertel 1305:
1.45 albertel 1306: sub delete_startouttext {
1.159 albertel 1307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1308: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1309: my $text=$$parser['-1']->get_text("/endouttext");
1310: my $ntoken=$$parser['-1']->get_token();
1311: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1312: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1313: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1314: # they did the last time round
1315: &Apache::lonxml::increasedepth($ntoken);
1316: &Apache::lonxml::decreasedepth($ntoken);
1317: return 1;
1.193 www 1318: }
1319:
1320: sub start_simpleeditbutton {
1321: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1322: my $result='';
1323: if (($target eq 'web') &&
1324: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1325: my $url=$ENV{'request.noversionuri'};
1.193 www 1326: $url=~s/\?.*$//;
1.194 www 1327: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1328: '<a href="'.$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 1329: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1330: }
1331: return $result;
1332: }
1333:
1334: sub end_simpleeditbutton {
1335: return '';
1.45 albertel 1336: }
1.34 albertel 1337:
1.1 albertel 1338: 1;
1339: __END__
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