Annotation of loncom/homework/structuretags.pm, revision 1.255
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.255 ! www 4: # $Id: structuretags.pm,v 1.254 2004/06/03 14:28:39 www Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.1 albertel 39:
1.78 harris41 40: BEGIN {
1.248 albertel 41: &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 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.48 albertel 71: sub page_start {
1.159 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
73: my %found;
1.207 albertel 74: foreach my $taginside (@$tagstack) {
1.159 albertel 75: foreach my $taglookedfor ('html','body','form') {
76: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
77: }
78: }
79:
80: my $result;
81: my $head_tag_start;
82: if (!defined($found{'html'})) {
83: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
84: $parstack,$parser,$safeeval);
1.254 www 85: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
86: &Apache::lonhtmlcommon::htmlareaheaders();
87: @Apache::lonxml::htmlareafields=();
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 $rndseed;
1.105 albertel 185: }
186:
187: sub problem_edit_header {
1.159 albertel 188: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 189: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 190: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
191: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
192: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
193: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
194: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.229 www 195: &Apache::loncommon::help_open_topic('Problem_Editor_XML_Index',
196: 'Problem Editing Help').'</td><td>'.
197: &Apache::loncommon::help_open_faq(5).
198: &Apache::loncommon::help_open_bug('Authoring').'</td></tr></table>'.
1.228 www 199: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 200: }
201:
202: sub problem_edit_footer {
1.210 albertel 203: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 ! www 204: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
! 205: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
! 206: "\n</form>\n</body>\n</html>";
1.105 albertel 207: }
208:
1.235 albertel 209: sub option {
210: my ($value,$name) = @_;
211: my $result ="<option value='".$value."' ";
212: if ($ENV{'form.'.$name} eq $value) {
213: $result.=" selected='on' ";
214: }
215: $result.='>';
216: return $result;
217: }
218:
1.105 albertel 219: sub problem_web_to_edit_header {
1.159 albertel 220: my ($rndseed)=@_;
1.210 albertel 221: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 222: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
223: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
224: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
225: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 226: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 227: <input type="text" name="rndseed" width="10" value="'.
228: $rndseed.'"
229: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 230: <input type="checkbox" name="showallfoils" ';
1.159 albertel 231: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 232: $result.= ' />'.&mt(' Show All Foils').
233: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
234: '<hr />';
1.235 albertel 235: $result.="
236: <nobr>
237: Problem Status:
238: <select name='problemstate'>
239: <option name=''></option>
240: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
241: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
242: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
243: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
244: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
245: </select>
246: </nobr>
247: <nobr>
248: Problem Type:
249: <select name='problemtype'>
250: <option name=''></option>
1.242 albertel 251: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
252: ".&option('problem','problemtype').&mt("Homework problem")."</option>
253: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 254: </select>
255: </nobr>
256: <nobr>
257: Feedback Mode:
258: <select name='problemstatus'>
259: <option value=''></option>
1.242 albertel 260: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
261: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 262: </select>
263: </nobr>
1.242 albertel 264: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 265: <hr />";
1.159 albertel 266: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 267: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 268: $result.= '<input type="submit" name="problemmode" value='.
269: &mt('"Calculate answers').'" /> for
1.136 albertel 270: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 271: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
272: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 273: '',undef,undef,300).
1.210 albertel 274: '<hr />';
1.159 albertel 275: return $result;
1.48 albertel 276: }
277:
1.65 albertel 278: sub initialize_storage {
1.159 albertel 279: %Apache::lonhomework::results=();
1.162 albertel 280: %Apache::lonhomework::history=();
1.159 albertel 281: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 282: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 283: %Apache::lonhomework::history=
284: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
285: my ($temp)=keys %Apache::lonhomework::history ;
286: &Apache::lonxml::debug("Return message of $temp");
287: } else {
288: %Apache::lonhomework::history=
289: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
290: }
291: #ignore error conditions
1.67 albertel 292: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 293: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 294: }
295:
296: # -------------------------------------------------------------finalize_storage
297: # Stores away the result has to a student's environment
298: # checks form.grade_ for specific values, other wises stores
299: # to the running users environment
300: sub finalize_storage {
1.159 albertel 301: my $result;
302: my ($temp) = keys %Apache::lonhomework::results;
303: if ( $temp ne '' ) {
304: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 305: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
306: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 307: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
308: $ENV{'request.uri'},'',$domain,$name);
309: &Apache::lonxml::debug('Construct Store return message:'.$result);
310: } else {
311: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
312: $symb,$courseid,$domain,$name);
313: &Apache::lonxml::debug('Store return message:'.$result);
314: }
1.67 albertel 315: }
1.159 albertel 316: return $result;
1.65 albertel 317: }
318:
319: sub checkout_msg {
1.211 albertel 320: my %lt=&Apache::lonlocal::texthash(
321: 'resource'=>'The resource needs to be checked out',
322: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
323: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
324: 'checkout'=>'Check out Exam for Viewing',
325: 'checkout?'=>'Check out Exam?');
1.159 albertel 326: return (<<ENDCHECKOUT);
1.211 albertel 327: <h2>$lt{'resource'}</h2>
328: <p>$lt{'id_expln'}</p>
329: <font color="red">
330: <p>$lt{'warning'}</p>
1.91 albertel 331: </font>
332: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
333: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 334: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 335: </form>
336: ENDCHECKOUT
337: }
338:
1.252 albertel 339: sub firstaccess_msg {
1.253 albertel 340: my ($time,$symb)=@_;
341: my ($map)=&Apache::lonnet::decode_symb($symb);
342: my $foldertitle=&Apache::lonnet::gettitle($map);
343: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 344: return (<<ENDCHECKOUT);
1.253 albertel 345: <h2>The resources in "$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 346: <form name="markaccess" method="POST" action="$ENV{'request.uri'}">
347: <input type="hidden" name="markaccess" value="yes" />
348: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
349: </form>
350: ENDCHECKOUT
351: }
352:
1.204 albertel 353: sub init_problem_globals {
354: my ($type)=@_;
355: #initialize globals
356: if ($type eq 'problem') {
357: $Apache::inputtags::part='0';
358: @Apache::inputtags::partlist=('0');
1.241 albertel 359:
360: $Apache::lonhomework::problemstatus=&get_problem_status('0')
1.204 albertel 361: } else {
362: $Apache::inputtags::part='';
363: @Apache::inputtags::partlist=();
364: $Apache::lonhomework::problemstatus='';
365: }
366: @Apache::inputtags::responselist = ();
367: @Apache::inputtags::importlist = ();
368: @Apache::inputtags::previous=();
369: @Apache::inputtags::previous_version=();
370: $Apache::structuretags::printanswer='No';
371: @Apache::structuretags::whileconds=();
372: @Apache::structuretags::whilebody=();
373: @Apache::structuretags::whileline=();
374: $Apache::lonhomework::scantronmode=0;
375: undef($Apache::lonhomework::name);
376:
377: }
378:
379: sub reset_problem_globals {
380: my ($type)=@_;
381: undef(%Apache::lonhomework::history);
382: undef(%Apache::lonhomework::results);
383: undef($Apache::inputtags::part);
1.208 albertel 384: #don't undef this, lonhomework.pm takes care of this, we use this to
385: #detect if we try to do 2 problems in one file
386: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 387: undef($Apache::lonhomework::name);
388: }
389:
1.241 albertel 390: sub set_problem_state {
1.240 albertel 391: my ($part)=@_;
392: if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
393: $Apache::lonhomework::history{"resource.$part.solved"}=
394: 'correct_by_student';
395: }
396: }
397:
1.241 albertel 398: sub get_problem_status {
399: my ($part)=@_;
400: my $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
401: &Apache::lonxml::debug("problem status for $part is $problem_status");
402: &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
403: if ($ENV{'request.state'} eq 'construct' &&
404: defined($ENV{'form.problemstatus'})) {
405: $problem_status=$ENV{'form.problemstatus'};
406: }
407: return $problem_status;
408: }
409:
1.9 albertel 410: sub start_problem {
1.159 albertel 411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 412:
1.184 albertel 413: if ( $Apache::inputtags::part ne '' ||
414: $Apache::lonhomework::parsing_a_problem) {
415: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
416: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 417: return '';
418: }
1.184 albertel 419:
420: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 421: &init_problem_globals('problem');
1.166 albertel 422:
423: if (defined($ENV{'scantron.maxquest'})) {
424: $Apache::lonhomework::scantronmode=1;
425: }
1.161 albertel 426:
1.246 albertel 427: &initialize_storage();
1.159 albertel 428: if ($target ne 'analyze') {
429: if ($target eq 'web') {
430: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 431: }
1.241 albertel 432: if ($ENV{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 433: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.237 albertel 434: if (($ENV{'request.state'} eq 'construct') &&
435: defined($ENV{'form.problemtype'})) {
436: $Apache::lonhomework::type=$ENV{'form.problemtype'};
437: }
1.240 albertel 438: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 439: }
1.164 albertel 440: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 441: my $uri=$ENV{'request.uri'};
442: if ($uri=~/\.(\w+)$/) {
443: $Apache::lonhomework::type=$1;
444: &Apache::lonxml::debug("Using type of $1");
445: } else {
446: $Apache::lonhomework::type='problem';
447: &Apache::lonxml::debug("Using default type, problem, :$uri:");
448: }
1.87 albertel 449: }
1.58 www 450:
1.159 albertel 451: #added vars to the scripting enviroment
1.213 albertel 452: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 453: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 454: &Apache::run::run($expression,$safeeval);
1.159 albertel 455: my $status;
456: my $accessmsg;
457:
458: #should get back a <html> or the neccesary stuff to start XML/MathML
459: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
460: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
461: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
462:
463: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
464: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
465: $target eq 'tex') {
466: #handle exam checkout
467: if ($Apache::lonhomework::type eq 'exam') {
468: my $token=
469: $Apache::lonhomework::history{"resource.0.outtoken"};
470: if (($ENV{'form.doescheckout'}) && (!$token)) {
471: $token=&Apache::lonxml::maketoken();
472: $Apache::lonhomework::history{"resource.0.outtoken"}=
473: $token;
474: }
475: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 476: }
1.252 albertel 477: if ($ENV{'form.markaccess'}) {
478: &Apache::lonnet::set_first_access('map');
479: }
1.159 albertel 480: #handle rand seed in construction space
481: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 482: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 483: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 484: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
485: $rndseed.'" />'.
486: '<input type="submit" name="resetdata"
1.211 albertel 487: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 488: '<input type="hidden" name="username"
1.185 albertel 489: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 490: }
1.159 albertel 491: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
492: push (@Apache::inputtags::status,$status);
493: my $expression='$external::datestatus="'.$status.'";';
494: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
495: &Apache::run::run($expression,$safeeval);
496: &Apache::lonxml::debug("Got $status");
497: if (( $status eq 'CLOSED' ) ||
498: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 499: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 500: ( $status eq 'BANNED') ||
1.216 albertel 501: ( $status eq 'UNAVAILABLE') ||
502: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 503: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
504: if ( $target eq "web" ) {
505: $result.= $head_tag_start.'</head>';
506: my $msg=$body_tag_start;
507: if ($status eq 'UNAVAILABLE') {
1.245 albertel 508: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 509: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 510: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 511: }
1.216 albertel 512: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 513: $msg.='The problem '.$accessmsg;
514: } elsif ($status eq 'UNCHECKEDOUT') {
515: $msg.=&checkout_msg;
1.252 albertel 516: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 517: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 518: }
519: $result.=$msg.'<br />';
520: } elsif ($target eq 'tex') {
521: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
522: if ($status eq 'UNAVAILABLE') {
1.211 albertel 523: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 524: } else {
1.211 albertel 525: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 526: }
527: }
528: } elsif ($target eq 'web') {
529: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 530: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 531: $body_tag_start \n $form_tag_start".
1.227 albertel 532: '<input type="hidden" name="submitted" value="yes" />';
533: # create a page header and exit
534: if ($ENV{'request.state'} eq "construct") {
535: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
536: }
537: # if we are viewing someone else preserve that info
538: if (defined $ENV{'form.grade_symb'}) {
539: foreach my $field ('symb','courseid','domain','username') {
540: $result .= '<input type="hidden" name="grade_'.$field.
541: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 542: }
543: }
544: } elsif ($target eq 'tex') {
1.192 sakharuk 545: my $startminipage = '';
1.191 sakharuk 546: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 547: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 548: }
1.159 albertel 549: my $id = $Apache::inputtags::part;
550: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 551: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
552: my @packages = split /,/,$packages;
553: my $allow_print_points = 0;
554: foreach my $partial_key (@packages) {
1.230 albertel 555: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 556: $allow_print_points=1;
1.159 albertel 557: }
558: }
559: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
560: $duedate = POSIX::strftime("%c",localtime($duedate));
561: my $temp_file;
562: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
563: if (-e $filename) {
564: $temp_file = Apache::File->new($filename);
565: } else {
566: $temp_file = Apache::File->new('>>'.$filename);
567: }
568: my @due_file_content = <$temp_file>;
569: my $due_file_content = $due_file_content[$#due_file_content];
570: chomp $due_file_content;
1.231 sakharuk 571: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval));
1.159 albertel 572: if ($due_file_content ne $duedate) {
573: $temp_file = Apache::File->new('>'.$filename);
574: print $temp_file "$duedate\n";
575: if (not $ENV{'request.symb'} =~ m/\.page_/) {
576: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 577: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 578: } else {
1.206 sakharuk 579: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 580: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
581: }
1.104 sakharuk 582: } else {
1.159 albertel 583: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 584: }
1.101 sakharuk 585: } else {
1.159 albertel 586: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 587: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 588: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
589: } else {
590: $result .= '\vskip 1mm \\\\\\\\';
591: }
592: }
1.99 sakharuk 593: }
1.159 albertel 594: } elsif ($target eq 'edit') {
595: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
596: &problem_edit_header();
1.226 albertel 597: $Apache::lonxml::warnings_error_header=
598: &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 599: my $temp=&Apache::edit::insertlist($target,$token);
600: $result.=$temp;
601: } elsif ($target eq 'modified') {
602: $result=$token->[4];
603: $result.=&Apache::edit::handle_insert();
604: } else {
605: # page_start returned a starting result, delete it if we don't need it
606: $result = '';
1.99 sakharuk 607: }
1.159 albertel 608: return $result;
1.9 albertel 609: }
610:
611: sub end_problem {
1.159 albertel 612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
613: my $result='';
614: my $status=$Apache::inputtags::status['-1'];
615: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
616: $target eq 'tex') {
1.249 albertel 617: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 618: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 619: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
620: &Apache::inputtags::grade;
621: } else {
622: # move any submission data to .hidden
623: &Apache::inputtags::hidealldata($Apache::inputtags::part);
624: }
1.159 albertel 625: } elsif ( ($target eq 'web' || $target eq 'tex') &&
626: $Apache::inputtags::part eq '0' &&
1.252 albertel 627: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 628: # if part is zero, no <part>s existed, so we need show the current
629: # grading status
630: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
631: $result.= $gradestatus;
632: }
633: if (
634: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
635: ($target eq 'answer') || ($target eq 'tex')
636: ) {
1.227 albertel 637: if ($target ne 'tex' &&
638: $ENV{'form.answer_output_mode'} ne 'tex') {
1.254 www 639: $result.="</form>";
640: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
641: $result.="</body>\n";
1.159 albertel 642: }
643: if ($target eq 'web') {
644: $result.=&Apache::lonxml::xmlend();
645: } elsif ($target eq 'tex') {
1.178 sakharuk 646: my $endminipage = '';
1.191 sakharuk 647: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 648: $endminipage = '\end{minipage}';
649: }
1.174 sakharuk 650: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 651: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 652: $result .= $endminipage.'\end{document} ';
1.159 albertel 653: } else {
654: $result .= '';
655: }
656: }
657: }
658: if ($target eq 'grade') {
659: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
660: &finalize_storage();
661: }
1.172 albertel 662: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 663: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 664: $result.='</html>'; # normally we get it from xmlend, but in CSTR
665: # we always show answer mode too.
1.159 albertel 666: }
667: } elsif ($target eq 'meta') {
668: if ($Apache::inputtags::part eq '0') {
1.179 albertel 669: @Apache::inputtags::response=();
1.159 albertel 670: $result=&Apache::response::mandatory_part_meta;
671: }
1.215 albertel 672: $result.=&Apache::response::meta_part_order();
1.159 albertel 673: } elsif ($target eq 'edit') {
674: &Apache::lonxml::debug("in end_problem with $target, edit");
675: $result = &problem_edit_footer();
676: }
1.155 albertel 677:
1.177 albertel 678: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
679: &Apache::inputtags::check_for_duplicate_ids();
680: }
1.204 albertel 681:
682: &reset_problem_globals('problem');
1.159 albertel 683:
684: return $result;
1.48 albertel 685: }
686:
1.108 albertel 687:
1.48 albertel 688: sub start_library {
1.159 albertel 689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
690: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 691: if ($$tagstack[0] eq 'library') {
692: &init_problem_globals('library');
693: $Apache::lonhomework::type='problem';
694: }
1.159 albertel 695: if ($target eq 'edit') {
696: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
697: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
698: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
699: &problem_edit_header();
700: my $temp=&Apache::edit::insertlist($target,$token);
701: $result.=$temp;
702: } elsif ($target eq 'modified') {
703: $result=$token->[4];
704: $result.=&Apache::edit::handle_insert();
705: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
706: $ENV{'request.state'} eq "construct" ) {
707: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
708: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
709: my $name=&get_resource_name($parstack,$safeeval);
710: my $rndseed=&setup_rndseed($safeeval);
711: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 712: $body_tag_start \n $form_tag_start".
1.159 albertel 713: '<input type="hidden" name="submitted" value="yes" />';
714: $result.=&problem_web_to_edit_header($rndseed);
715: }
716: return $result;
1.48 albertel 717: }
718:
719: sub end_library {
1.159 albertel 720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
721: my $result='';
722: if ($target eq 'edit') {
723: $result=&problem_edit_footer();
724: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
725: $ENV{'request.state'} eq "construct") {
726: $result.='</form></body>'.&Apache::lonxml::xmlend();
727: }
1.204 albertel 728: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 729: return $result;
1.197 www 730: }
731:
732: sub start_definetag {
733: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
734:
735: my $result;
736:
737: my $name = $token->[2]->{'name'};
738: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
739: if ($name=~/^\//) {
740: $result=
741: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
742: } else {
743: $result=
744: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
745: }
746: $skip=~s/\</\<\;/gs;
747: $skip=~s/\>/\>\;/gs;
748: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
749: return $result;
750: }
751:
752: sub end_definetag {
753: return '';
1.1 albertel 754: }
755:
756: sub start_block {
1.201 albertel 757: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 758:
759: my $result;
1.1 albertel 760:
1.160 albertel 761: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 762: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 763: my $code = $token->[2]->{'condition'};
1.201 albertel 764: if (defined($code)) {
1.137 albertel 765: if (!$Apache::lonxml::default_homework_loaded) {
766: &Apache::lonxml::default_homework_load($safeeval);
767: }
1.131 albertel 768: $result = &Apache::run::run($code,$safeeval);
769: &Apache::lonxml::debug("block :$code: returned :$result:");
770: } else {
771: $result='1';
772: }
773: if ( ! $result ) {
1.201 albertel 774: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 775: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
776: }
777: $result='';
778: } elsif ($target eq 'edit') {
779: $result .=&Apache::edit::tag_start($target,$token);
780: $result .=&Apache::edit::text_arg('Test Condition:','condition',
781: $token,40);
782: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
783: } elsif ($target eq 'modified') {
784: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
785: $safeeval,'condition');
786: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 787: }
1.131 albertel 788: return $result;
1.1 albertel 789: }
790:
791: sub end_block {
1.167 www 792: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
793: my $result;
794: if ($target eq "edit") {
795: $result.= &Apache::edit::tag_end($target,$token,'');
796: }
797: return $result;
798: }
799:
800: sub start_languageblock {
1.201 albertel 801: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 802:
803: my $result;
804:
805: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
806: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 807: my $include = $token->[2]->{'include'};
808: my $exclude = $token->[2]->{'exclude'};
809: my %languages=&Apache::loncommon::display_languages();
810: $result='1';
811: if ($include) {
812: $result='';
813: foreach (split(/\,/,$include)) {
814: if ($languages{$_}) { $result='1'; }
815: }
816: }
817: if ($exclude) {
818: foreach (split(/\,/,$exclude)) {
819: if ($languages{$_}) { $result='0'; }
820: }
821: }
822: if ( ! $result ) {
823: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
824: $style);
825: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
826: }
827: $result='';
1.167 www 828: } elsif ($target eq 'edit') {
829: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 830: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 831: $token,40);
1.211 albertel 832: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 833: $token,40);
834: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
835: } elsif ($target eq 'modified') {
836: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 837: $safeeval,'include',
838: 'exclude');
1.167 www 839: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
840: }
841: return $result;
842: }
843:
844: sub end_languageblock {
1.170 www 845: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
846: my $result;
1.201 albertel 847: if ($target eq "edit") {
1.170 www 848: $result.= &Apache::edit::tag_end($target,$token,'');
849: }
850: return $result;
851: }
852:
853: sub start_instructorcomment {
1.201 albertel 854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 855:
856: my $result;
857:
858: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
859: $target eq 'tex' || $target eq 'analyze') {
860: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
861: if ( ! $result ) {
1.201 albertel 862: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
863: $parser,$style);
1.170 www 864: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
865: }
866: $result='';
867: } elsif ($target eq 'edit') {
868: $result .=&Apache::edit::tag_start($target,$token);
869: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
870: }
871: return $result;
872: }
873:
874: sub end_instructorcomment {
1.159 albertel 875: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 876: my $result;
877: if ($target eq "edit") {
878: $result.= &Apache::edit::tag_end($target,$token,'');
879: }
880: return $result;
1.4 tsai 881: }
882:
883: sub start_while {
1.159 albertel 884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
885:
1.160 albertel 886: my $result;
1.161 albertel 887: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 888: $target eq 'tex' || $target eq 'analyze') {
889: my $code = $token->[2]->{'condition'};
1.4 tsai 890:
1.160 albertel 891: push( @Apache::structuretags::whileconds, $code);
892: if (!$Apache::lonxml::default_homework_loaded) {
893: &Apache::lonxml::default_homework_load($safeeval);
894: }
895: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 896: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 897: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 898: push( @Apache::structuretags::whileline, $token->[5]);
899: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 900: if ( $result ) {
901: &Apache::lonxml::newparser($parser,\$bodytext);
902: }
903: } elsif ($target eq 'edit') {
904: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 905: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 906: $token,40);
907: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
908: } elsif ($target eq 'modified') {
909: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
910: $safeeval,'condition');
911: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 912: }
1.160 albertel 913: return $result;
1.4 tsai 914: }
915:
916: sub end_while {
1.159 albertel 917: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 918: my $result;
919:
920: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
921: $target eq 'tex' || $target eq 'analyze') {
922: my $code = pop(@Apache::structuretags::whileconds);
923: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 924: my $line = pop(@Apache::structuretags::whileline);
925: my $return = &Apache::run::run($code,$safeeval);
926: my $starttime=time;
927: my $error=0;
928: while ($return) {
929: if (time-$starttime >
930: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
931: $return = 0; $error=1; next;
932: }
933: $result.=&Apache::scripttag::xmlparse($bodytext);
934: $return = &Apache::run::run($code,$safeeval);
935: }
936: if ($error) {
1.211 albertel 937: &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 938: }
939: } elsif ($target eq "edit") {
940: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 941: }
1.160 albertel 942: return $result;
1.1 albertel 943: }
1.6 tsai 944:
1.160 albertel 945: # <randomlist show="1">
1.6 tsai 946: # <tag1>..</tag1>
947: # <tag2>..</tag2>
948: # <tag3>..</tag3>
1.160 albertel 949: # ...
1.6 tsai 950: # </randomlist>
951: sub start_randomlist {
1.159 albertel 952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
953: my $result;
954: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
955: $target eq 'tex' || $target eq 'analyze') {
956: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
957: my $b_parser= HTML::TokeParser->new(\$body);
958: my $b_tok;
959: my @randomlist;
960: my $list_item;
961: while($b_tok = $b_parser->get_token() ) {
962: if($b_tok->[0] eq 'S') { # start tag
963: # get content of the tag until matching end tag
964: # get all text upto the matching tag
965: # and push the content into @randomlist
966: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
967: $b_parser);
968: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
969: push(@randomlist,$list_item);
970: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
971: # $list_item</b>";
972: }
973: if($b_tok->[0] eq 'T') { # text
974: # what to do with text in between tags?
975: # print "<b>TEXT $b_tok->[1]</b><br />";
976: }
977: # if($b_tok->[0] eq 'E') { # end tag, should not happen
978: # print "<b>END-TAG $b_tok->[1]</b><br />";
979: # }
980: }
981: my @idx_arr = (0 .. $#randomlist);
982: &Apache::structuretags::shuffle(\@idx_arr);
983: my $bodytext = '';
984: my $show=$#randomlist;
985: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
986: $showarg--;
987: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
988: for(0 .. $show) {
989: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
990: }
991: &Apache::lonxml::newparser($parser,\$bodytext);
992: } elsif ($target eq 'edit' ) {
993: $result .=&Apache::edit::tag_start($target,$token);
994: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
995: $token,5);
996: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
997: } elsif ($target eq 'modified' ) {
998: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
999: $safeeval,'show');
1000: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1001: }
1002: return $result;
1.7 tsai 1003: }
1004:
1005: sub shuffle {
1006: my $a=shift;
1007: my $i;
1.70 albertel 1008: if (defined(@$a)) {
1.251 albertel 1009: &Apache::response::pushrandomnumber();
1.159 albertel 1010: for($i=@$a;--$i;) {
1011: my $j=int(&Math::Random::random_uniform() * ($i+1));
1012: next if $i == $j;
1013: @$a[$i,$j] = @$a[$j,$i];
1014: }
1.251 albertel 1015: &Apache::response::poprandomnumber();
1.7 tsai 1016: }
1.6 tsai 1017: }
1018:
1019: sub end_randomlist {
1.159 albertel 1020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1021: my $result;
1022: if ($target eq 'edit' ) {
1023: $result=&Apache::edit::tag_end($target,$token,
1024: 'End Randomly Parsed Block');
1025: }
1026: return $result;
1.6 tsai 1027: }
1028:
1.11 albertel 1029: sub start_part {
1.159 albertel 1030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1031: my $result='';
1032: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1033: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1034: $Apache::inputtags::part=$id;
1.177 albertel 1035: push(@Apache::inputtags::partlist,$id);
1036: @Apache::inputtags::response=();
1.159 albertel 1037: @Apache::inputtags::previous=();
1038: @Apache::inputtags::previous_version=();
1.241 albertel 1039: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1040: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.214 albertel 1041: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.209 albertel 1042: &Apache::run::run($expression,$safeeval);
1.159 albertel 1043:
1044: if ($target eq 'meta') {
1.224 www 1045: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1046: return &Apache::response::mandatory_part_meta.
1047: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1048: } elsif ($target eq 'web' || $target eq 'grade' ||
1049: $target eq 'answer' || $target eq 'tex') {
1050: if ($hidden) {
1051: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1052: } else {
1053: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1054: push (@Apache::inputtags::status,$status);
1055: my $expression='$external::datestatus="'.$status.'";';
1056: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1057: &Apache::run::run($expression,$safeeval);
1.240 albertel 1058: if ($ENV{'request.state'} eq 'construct') {
1.241 albertel 1059: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1060: }
1.216 albertel 1061: if (( $status eq 'CLOSED' ) ||
1062: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1063: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1064: ( $status eq 'BANNED') ||
1065: ( $status eq 'UNAVAILABLE') ||
1066: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1067: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1068: if ( $target eq "web" ) {
1.211 albertel 1069: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1070: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1071: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1072: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1073: } else {
1.211 albertel 1074: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1075: }
1.159 albertel 1076: }
1077: } else {
1078: if ($target eq 'tex') {
1.195 sakharuk 1079: if (not $ENV{'form.problem_split'}=~/yes/) {
1080: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1081: }
1.159 albertel 1082: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1083: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1084: my @allkeys = split /,/,$allkeys;
1085: my $allow_print_points = 0;
1086: foreach my $partial_key (@allkeys) {
1.230 albertel 1087: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1088: if ($1 ne '0') {$allow_print_points=1;}
1089: }
1090: }
1091: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1092: } elsif ($target eq 'web') {
1093: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1094: }
1095: }
1096: }
1097: } elsif ($target eq 'edit') {
1098: $result.=&Apache::edit::tag_start($target,$token);
1099: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1100: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1101: ' '.
1102: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1103: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1104: } elsif ($target eq 'modified') {
1105: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1106: $safeeval,'id','display');
1.159 albertel 1107: if ($constructtag) {
1.225 albertel 1108: #limiting ids to only letters numbers, and space
1.224 www 1109: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1110: $result = &Apache::edit::rebuild_tag($token);
1111: $result.=&Apache::edit::handle_insert();
1112: }
1113: }
1114: return $result;
1.11 albertel 1115: }
1116:
1117: sub end_part {
1.159 albertel 1118: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1119: &Apache::lonxml::debug("in end_part $target ");
1120: my $status=$Apache::inputtags::status['-1'];
1121: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1122: my $result='';
1123: if ( $target eq 'meta' ) {
1124: $result='';
1.249 albertel 1125: } elsif ($target eq 'grade') {
1126: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1127: !$hidden) {
1128: $result=&Apache::inputtags::grade;
1129: } else {
1130: # move any submission data to .hidden
1131: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1132: }
1.159 albertel 1133: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1134: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1135: $target);
1.212 albertel 1136: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1137: $gradestatus='';
1138: }
1.159 albertel 1139: $result=$gradestatus;
1.181 albertel 1140: } elsif ($target eq 'edit') {
1141: $result=&Apache::edit::end_table();
1.159 albertel 1142: }
1143: pop @Apache::inputtags::status;
1144: $Apache::inputtags::part='';
1145: return $result;
1.11 albertel 1146: }
1.1 albertel 1147:
1.25 albertel 1148: sub start_preduedate {
1.159 albertel 1149: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1150: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1151: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1152: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1153: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1154: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1155: &Apache::lonxml::get_all_text("/preduedate",$parser);
1156: }
1.24 albertel 1157: }
1.159 albertel 1158: return '';
1.24 albertel 1159: }
1160:
1.25 albertel 1161: sub end_preduedate {
1.159 albertel 1162: return '';
1.24 albertel 1163: }
1164:
1.25 albertel 1165: sub start_postanswerdate {
1.159 albertel 1166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1167: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1168: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1169: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1170: }
1171: } elsif ($target eq 'tex') {
1.234 albertel 1172: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1173: }
1174: return '';
1.24 albertel 1175: }
1176:
1.25 albertel 1177: sub end_postanswerdate {
1.159 albertel 1178: return '';
1.24 albertel 1179: }
1180:
1.25 albertel 1181: sub start_notsolved {
1.159 albertel 1182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1183: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1184: $target eq 'tex') {
1185: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1186: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1187: if ($gradestatus =~ /^correct/ &&
1188: &Apache::response::show_answer()) {
1.159 albertel 1189: &Apache::lonxml::debug("skipping");
1190: &Apache::lonxml::get_all_text("/notsolved",$parser);
1191: }
1.24 albertel 1192: }
1.159 albertel 1193: return '';
1.24 albertel 1194: }
1195:
1.25 albertel 1196: sub end_notsolved {
1.159 albertel 1197: return '';
1.24 albertel 1198: }
1199:
1200: sub start_solved {
1.159 albertel 1201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1202: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1203: $target eq 'tex') {
1204: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1205: if ($gradestatus !~ /^correct/ ||
1206: !&Apache::response::show_answer()) {
1.159 albertel 1207: &Apache::lonxml::get_all_text("/solved",$parser);
1208: }
1.24 albertel 1209: }
1.159 albertel 1210: return '';
1.24 albertel 1211: }
1212:
1213: sub end_solved {
1.248 albertel 1214: return '';
1215: }
1216:
1217: sub start_problemtype {
1218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1219: my $result;
1220: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1221: $target eq 'tex' || $target eq 'analyze') {
1222: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1223: if (!defined($mode)) { $mode='show'; }
1224: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1225: my $found=0;
1226: foreach my $type (split(',',$for)) {
1227: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1228: }
1229: if ($mode eq 'show' && !$found) {
1230: &Apache::lonxml::get_all_text("/problemtype",$parser);
1231: }
1232: if ($mode eq 'hide' && $found) {
1233: &Apache::lonxml::get_all_text("/problemtype",$parser);
1234: }
1235: } elsif ($target eq 'edit') {
1236: $result .=&Apache::edit::tag_start($target,$token);
1237: $result.=&Apache::edit::select_arg('Mode:','mode',
1238: [['show','Show'],
1239: ['hide','Hide']]
1240: ,$token);
1241: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1242: [ ['exam','Exam/Quiz Problem'],
1243: ['survey','Survey'],
1244: ['problem','Homework Problem'] ]
1245: ,$token);
1246: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1247: } elsif ($target eq 'modified') {
1248: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1249: $safeeval,'mode','for');
1250: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1251: }
1252: return $result;
1253: }
1254:
1255: sub end_problemtype {
1.159 albertel 1256: return '';
1.24 albertel 1257: }
1.34 albertel 1258:
1259: sub start_startouttext {
1.159 albertel 1260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1261: my @result=(''.'');
1262: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1263: return (@result);
1.34 albertel 1264: }
1.159 albertel 1265:
1.34 albertel 1266: sub end_startouttext {
1.159 albertel 1267: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1268: my $result='';
1269: my $text='';
1270:
1271: if ($target eq 'edit') {
1272: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1273: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1274: <td>".&mt('Delete:').
1.159 albertel 1275: &Apache::edit::deletelist($target,$token)
1276: ."</td>
1.42 albertel 1277: <td>".
1.159 albertel 1278: &Apache::edit::insertlist($target,$token).
1279: &Apache::edit::end_row().
1280: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1281: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 ! www 1282: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1283: }
1284: if ($target eq 'modified') {
1.219 albertel 1285: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1286: }
1287: if ($target eq 'tex') {
1288: $result .= '\noindent ';
1289: }
1290: return $result;
1.34 albertel 1291: }
1.159 albertel 1292:
1.34 albertel 1293: sub start_endouttext {
1.159 albertel 1294: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1295: my $result='';
1296: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1297: if ($target eq "modified") {
1298: $result='<endouttext />'.
1299: &Apache::edit::handle_insertafter('startouttext'); }
1300: return $result;
1.34 albertel 1301: }
1.159 albertel 1302:
1.34 albertel 1303: sub end_endouttext {
1.159 albertel 1304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1305: my @result=('','');
1306: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1307: return (@result);
1.34 albertel 1308: }
1.159 albertel 1309:
1.45 albertel 1310: sub delete_startouttext {
1.159 albertel 1311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1312: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1313: my $text=$$parser['-1']->get_text("/endouttext");
1314: my $ntoken=$$parser['-1']->get_token();
1315: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1316: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1317: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1318: # they did the last time round
1319: &Apache::lonxml::increasedepth($ntoken);
1320: &Apache::lonxml::decreasedepth($ntoken);
1321: return 1;
1.193 www 1322: }
1323:
1324: sub start_simpleeditbutton {
1325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1326: my $result='';
1327: if (($target eq 'web') &&
1328: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1329: my $url=$ENV{'request.noversionuri'};
1.193 www 1330: $url=~s/\?.*$//;
1.194 www 1331: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1332: '<a href="'.$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 1333: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1334: }
1335: return $result;
1336: }
1337:
1338: sub end_simpleeditbutton {
1339: return '';
1.45 albertel 1340: }
1.34 albertel 1341:
1.1 albertel 1342: 1;
1343: __END__
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