Annotation of loncom/homework/structuretags.pm, revision 1.267
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.267 ! albertel 4: # $Id: structuretags.pm,v 1.266 2004/08/29 07:49:35 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 ! albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
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).
1.261 www 86: &Apache::lonhtmlcommon::htmlareaheaders().
87: &Apache::lonhtmlcommon::spellheader();
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 $rndseed;
1.105 albertel 185: }
186:
187: sub problem_edit_header {
1.159 albertel 188: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 189: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 190: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
191: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
192: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
193: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
194: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 195: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
196: .'</td></tr></table>'.
1.228 www 197: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 198: }
199:
200: sub problem_edit_footer {
1.210 albertel 201: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 202: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
203: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
204: "\n</form>\n</body>\n</html>";
1.105 albertel 205: }
206:
1.235 albertel 207: sub option {
208: my ($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');
1.266 albertel 357: $Apache::lonhomework::problemstatus=&get_problem_status('0');
358: $Apache::lonhomework::ignore_response_errors=0;
359: } elsif ($type eq 'library') {
1.204 albertel 360: $Apache::inputtags::part='';
361: @Apache::inputtags::partlist=();
362: $Apache::lonhomework::problemstatus='';
1.266 albertel 363: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 364: }
365: @Apache::inputtags::responselist = ();
366: @Apache::inputtags::importlist = ();
367: @Apache::inputtags::previous=();
368: @Apache::inputtags::previous_version=();
369: $Apache::structuretags::printanswer='No';
370: @Apache::structuretags::whileconds=();
371: @Apache::structuretags::whilebody=();
372: @Apache::structuretags::whileline=();
373: $Apache::lonhomework::scantronmode=0;
374: undef($Apache::lonhomework::name);
375:
376: }
377:
378: sub reset_problem_globals {
379: my ($type)=@_;
380: undef(%Apache::lonhomework::history);
381: undef(%Apache::lonhomework::results);
382: undef($Apache::inputtags::part);
1.208 albertel 383: #don't undef this, lonhomework.pm takes care of this, we use this to
384: #detect if we try to do 2 problems in one file
385: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 386: undef($Apache::lonhomework::name);
387: }
388:
1.241 albertel 389: sub set_problem_state {
1.240 albertel 390: my ($part)=@_;
391: if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
392: $Apache::lonhomework::history{"resource.$part.solved"}=
393: 'correct_by_student';
394: }
395: }
396:
1.241 albertel 397: sub get_problem_status {
398: my ($part)=@_;
1.267 ! albertel 399: my $problem_status;
1.241 albertel 400: if ($ENV{'request.state'} eq 'construct' &&
401: defined($ENV{'form.problemstatus'})) {
402: $problem_status=$ENV{'form.problemstatus'};
1.267 ! albertel 403: } else {
! 404: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
! 405: &Apache::lonxml::debug("problem status for $part is $problem_status");
! 406: &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
1.241 albertel 407: }
408: return $problem_status;
409: }
410:
1.9 albertel 411: sub start_problem {
1.159 albertel 412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 413:
1.184 albertel 414: if ( $Apache::inputtags::part ne '' ||
415: $Apache::lonhomework::parsing_a_problem) {
416: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
417: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 418: return '';
419: }
1.184 albertel 420:
421: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 422: &init_problem_globals('problem');
1.166 albertel 423:
424: if (defined($ENV{'scantron.maxquest'})) {
425: $Apache::lonhomework::scantronmode=1;
426: }
1.161 albertel 427:
1.246 albertel 428: &initialize_storage();
1.159 albertel 429: if ($target ne 'analyze') {
430: if ($target eq 'web') {
431: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 432: }
1.241 albertel 433: if ($ENV{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 434: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.237 albertel 435: if (($ENV{'request.state'} eq 'construct') &&
436: defined($ENV{'form.problemtype'})) {
437: $Apache::lonhomework::type=$ENV{'form.problemtype'};
438: }
1.240 albertel 439: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 440: }
1.164 albertel 441: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 442: my $uri=$ENV{'request.uri'};
443: if ($uri=~/\.(\w+)$/) {
444: $Apache::lonhomework::type=$1;
445: &Apache::lonxml::debug("Using type of $1");
446: } else {
447: $Apache::lonhomework::type='problem';
448: &Apache::lonxml::debug("Using default type, problem, :$uri:");
449: }
1.87 albertel 450: }
1.58 www 451:
1.159 albertel 452: #added vars to the scripting enviroment
1.213 albertel 453: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 454: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 455: &Apache::run::run($expression,$safeeval);
1.159 albertel 456: my $status;
457: my $accessmsg;
458:
459: #should get back a <html> or the neccesary stuff to start XML/MathML
460: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
461: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
462: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
463:
464: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
465: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
466: $target eq 'tex') {
467: #handle exam checkout
468: if ($Apache::lonhomework::type eq 'exam') {
469: my $token=
470: $Apache::lonhomework::history{"resource.0.outtoken"};
471: if (($ENV{'form.doescheckout'}) && (!$token)) {
472: $token=&Apache::lonxml::maketoken();
473: $Apache::lonhomework::history{"resource.0.outtoken"}=
474: $token;
475: }
476: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 477: }
1.252 albertel 478: if ($ENV{'form.markaccess'}) {
479: &Apache::lonnet::set_first_access('map');
480: }
1.159 albertel 481: #handle rand seed in construction space
482: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 483: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 484: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 485: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
486: $rndseed.'" />'.
487: '<input type="submit" name="resetdata"
1.211 albertel 488: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 489: '<input type="hidden" name="username"
1.267 ! albertel 490: value="'.$ENV{'form.username'}.'" />';
! 491: if ($ENV{'user.adv'}) {
! 492: $form_tag_start.=
! 493: ' <input type="checkbox" name="showallfoils" ';
! 494: if (defined($ENV{'form.showallfoils'})) {
! 495: $form_tag_start.='checked="on"';
! 496: }
! 497: $form_tag_start.= ' />'.&mt(' Show All Foils');
! 498: }
! 499: $form_tag_start.='<hr />';
1.162 albertel 500: }
1.159 albertel 501: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
502: push (@Apache::inputtags::status,$status);
503: my $expression='$external::datestatus="'.$status.'";';
504: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
505: &Apache::run::run($expression,$safeeval);
506: &Apache::lonxml::debug("Got $status");
507: if (( $status eq 'CLOSED' ) ||
508: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 509: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 510: ( $status eq 'BANNED') ||
1.216 albertel 511: ( $status eq 'UNAVAILABLE') ||
512: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 513: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
514: if ( $target eq "web" ) {
515: $result.= $head_tag_start.'</head>';
516: my $msg=$body_tag_start;
517: if ($status eq 'UNAVAILABLE') {
1.245 albertel 518: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 519: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 520: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 521: }
1.216 albertel 522: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 523: $msg.='The problem '.$accessmsg;
524: } elsif ($status eq 'UNCHECKEDOUT') {
525: $msg.=&checkout_msg;
1.252 albertel 526: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 527: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 528: }
529: $result.=$msg.'<br />';
530: } elsif ($target eq 'tex') {
531: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
532: if ($status eq 'UNAVAILABLE') {
1.211 albertel 533: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 534: } else {
1.211 albertel 535: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 536: }
537: }
538: } elsif ($target eq 'web') {
539: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 540: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 541: $body_tag_start \n $form_tag_start".
1.227 albertel 542: '<input type="hidden" name="submitted" value="yes" />';
543: # create a page header and exit
544: if ($ENV{'request.state'} eq "construct") {
545: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
546: }
547: # if we are viewing someone else preserve that info
548: if (defined $ENV{'form.grade_symb'}) {
549: foreach my $field ('symb','courseid','domain','username') {
550: $result .= '<input type="hidden" name="grade_'.$field.
551: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 552: }
553: }
554: } elsif ($target eq 'tex') {
1.192 sakharuk 555: my $startminipage = '';
1.191 sakharuk 556: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 557: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 558: }
1.159 albertel 559: my $id = $Apache::inputtags::part;
560: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 561: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
562: my @packages = split /,/,$packages;
563: my $allow_print_points = 0;
564: foreach my $partial_key (@packages) {
1.230 albertel 565: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 566: $allow_print_points=1;
1.159 albertel 567: }
568: }
569: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
570: $duedate = POSIX::strftime("%c",localtime($duedate));
571: my $temp_file;
572: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
573: if (-e $filename) {
574: $temp_file = Apache::File->new($filename);
575: } else {
576: $temp_file = Apache::File->new('>>'.$filename);
577: }
578: my @due_file_content = <$temp_file>;
579: my $due_file_content = $due_file_content[$#due_file_content];
580: chomp $due_file_content;
1.257 sakharuk 581: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 582: if ($due_file_content ne $duedate) {
583: $temp_file = Apache::File->new('>'.$filename);
584: print $temp_file "$duedate\n";
585: if (not $ENV{'request.symb'} =~ m/\.page_/) {
586: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 587: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 588: } else {
1.206 sakharuk 589: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 590: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
591: }
1.104 sakharuk 592: } else {
1.159 albertel 593: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 594: }
1.101 sakharuk 595: } else {
1.159 albertel 596: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 597: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 598: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
599: } else {
600: $result .= '\vskip 1mm \\\\\\\\';
601: }
602: }
1.99 sakharuk 603: }
1.159 albertel 604: } elsif ($target eq 'edit') {
605: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
606: &problem_edit_header();
1.226 albertel 607: $Apache::lonxml::warnings_error_header=
608: &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 609: my $temp=&Apache::edit::insertlist($target,$token);
610: $result.=$temp;
611: } elsif ($target eq 'modified') {
612: $result=$token->[4];
613: $result.=&Apache::edit::handle_insert();
614: } else {
615: # page_start returned a starting result, delete it if we don't need it
616: $result = '';
1.99 sakharuk 617: }
1.159 albertel 618: return $result;
1.9 albertel 619: }
620:
621: sub end_problem {
1.159 albertel 622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
623: my $result='';
624: my $status=$Apache::inputtags::status['-1'];
625: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
626: $target eq 'tex') {
1.249 albertel 627: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 628: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 629: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
630: &Apache::inputtags::grade;
631: } else {
632: # move any submission data to .hidden
633: &Apache::inputtags::hidealldata($Apache::inputtags::part);
634: }
1.159 albertel 635: } elsif ( ($target eq 'web' || $target eq 'tex') &&
636: $Apache::inputtags::part eq '0' &&
1.252 albertel 637: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 638: # if part is zero, no <part>s existed, so we need show the current
639: # grading status
640: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
641: $result.= $gradestatus;
642: }
643: if (
644: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
645: ($target eq 'answer') || ($target eq 'tex')
646: ) {
1.227 albertel 647: if ($target ne 'tex' &&
648: $ENV{'form.answer_output_mode'} ne 'tex') {
1.254 www 649: $result.="</form>";
650: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
651: $result.="</body>\n";
1.159 albertel 652: }
653: if ($target eq 'web') {
654: $result.=&Apache::lonxml::xmlend();
655: } elsif ($target eq 'tex') {
1.178 sakharuk 656: my $endminipage = '';
1.191 sakharuk 657: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 658: $endminipage = '\end{minipage}';
659: }
1.257 sakharuk 660: if ($ENV{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 661: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 662: $result=~s/<\/html>//;
1.159 albertel 663: } else {
1.262 sakharuk 664: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
665: if (not $ENV{'request.symb'} =~ m/\.page_/) {
666: $result .= $endminipage.'\end{document} ';
667: } else {
668: $result .= '';
669: }
1.159 albertel 670: }
671: }
672: }
673: if ($target eq 'grade') {
674: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
675: &finalize_storage();
676: }
1.172 albertel 677: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 678: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 679: $result.='</html>'; # normally we get it from xmlend, but in CSTR
680: # we always show answer mode too.
1.159 albertel 681: }
682: } elsif ($target eq 'meta') {
683: if ($Apache::inputtags::part eq '0') {
1.179 albertel 684: @Apache::inputtags::response=();
1.159 albertel 685: $result=&Apache::response::mandatory_part_meta;
686: }
1.215 albertel 687: $result.=&Apache::response::meta_part_order();
1.258 albertel 688: $result.=&Apache::response::meta_response_order();
1.159 albertel 689: } elsif ($target eq 'edit') {
690: &Apache::lonxml::debug("in end_problem with $target, edit");
691: $result = &problem_edit_footer();
692: }
1.155 albertel 693:
1.177 albertel 694: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
695: &Apache::inputtags::check_for_duplicate_ids();
696: }
1.204 albertel 697:
698: &reset_problem_globals('problem');
1.159 albertel 699:
700: return $result;
1.48 albertel 701: }
702:
1.108 albertel 703:
1.48 albertel 704: sub start_library {
1.159 albertel 705: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
706: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 707: if ($$tagstack[0] eq 'library') {
708: &init_problem_globals('library');
709: $Apache::lonhomework::type='problem';
710: }
1.159 albertel 711: if ($target eq 'edit') {
712: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
713: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
714: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
715: &problem_edit_header();
716: my $temp=&Apache::edit::insertlist($target,$token);
717: $result.=$temp;
718: } elsif ($target eq 'modified') {
719: $result=$token->[4];
720: $result.=&Apache::edit::handle_insert();
721: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
722: $ENV{'request.state'} eq "construct" ) {
723: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
724: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
725: my $name=&get_resource_name($parstack,$safeeval);
726: my $rndseed=&setup_rndseed($safeeval);
727: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 728: $body_tag_start \n $form_tag_start".
1.159 albertel 729: '<input type="hidden" name="submitted" value="yes" />';
730: $result.=&problem_web_to_edit_header($rndseed);
731: }
732: return $result;
1.48 albertel 733: }
734:
735: sub end_library {
1.159 albertel 736: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
737: my $result='';
738: if ($target eq 'edit') {
739: $result=&problem_edit_footer();
740: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
741: $ENV{'request.state'} eq "construct") {
742: $result.='</form></body>'.&Apache::lonxml::xmlend();
743: }
1.204 albertel 744: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 745: return $result;
1.197 www 746: }
747:
748: sub start_definetag {
749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
750:
751: my $result;
752:
753: my $name = $token->[2]->{'name'};
754: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
755: if ($name=~/^\//) {
756: $result=
757: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
758: } else {
759: $result=
760: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
761: }
762: $skip=~s/\</\<\;/gs;
763: $skip=~s/\>/\>\;/gs;
764: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
765: return $result;
766: }
767:
768: sub end_definetag {
769: return '';
1.1 albertel 770: }
771:
772: sub start_block {
1.201 albertel 773: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 774:
775: my $result;
1.1 albertel 776:
1.160 albertel 777: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 778: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 779: my $code = $token->[2]->{'condition'};
1.201 albertel 780: if (defined($code)) {
1.137 albertel 781: if (!$Apache::lonxml::default_homework_loaded) {
782: &Apache::lonxml::default_homework_load($safeeval);
783: }
1.131 albertel 784: $result = &Apache::run::run($code,$safeeval);
785: &Apache::lonxml::debug("block :$code: returned :$result:");
786: } else {
787: $result='1';
788: }
789: if ( ! $result ) {
1.201 albertel 790: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 791: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
792: }
793: $result='';
794: } elsif ($target eq 'edit') {
795: $result .=&Apache::edit::tag_start($target,$token);
796: $result .=&Apache::edit::text_arg('Test Condition:','condition',
797: $token,40);
798: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
799: } elsif ($target eq 'modified') {
800: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
801: $safeeval,'condition');
802: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 803: }
1.131 albertel 804: return $result;
1.1 albertel 805: }
806:
807: sub end_block {
1.167 www 808: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
809: my $result;
810: if ($target eq "edit") {
811: $result.= &Apache::edit::tag_end($target,$token,'');
812: }
813: return $result;
814: }
815:
816: sub start_languageblock {
1.201 albertel 817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 818:
819: my $result;
820:
821: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
822: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 823: my $include = $token->[2]->{'include'};
824: my $exclude = $token->[2]->{'exclude'};
825: my %languages=&Apache::loncommon::display_languages();
826: $result='1';
827: if ($include) {
828: $result='';
829: foreach (split(/\,/,$include)) {
830: if ($languages{$_}) { $result='1'; }
831: }
832: }
833: if ($exclude) {
834: foreach (split(/\,/,$exclude)) {
835: if ($languages{$_}) { $result='0'; }
836: }
837: }
838: if ( ! $result ) {
839: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
840: $style);
841: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
842: }
843: $result='';
1.167 www 844: } elsif ($target eq 'edit') {
845: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 846: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 847: $token,40);
1.211 albertel 848: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 849: $token,40);
850: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
851: } elsif ($target eq 'modified') {
852: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 853: $safeeval,'include',
854: 'exclude');
1.167 www 855: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
856: }
857: return $result;
858: }
859:
860: sub end_languageblock {
1.170 www 861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
862: my $result;
1.201 albertel 863: if ($target eq "edit") {
1.170 www 864: $result.= &Apache::edit::tag_end($target,$token,'');
865: }
866: return $result;
867: }
868:
869: sub start_instructorcomment {
1.201 albertel 870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 871:
872: my $result;
873:
874: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
875: $target eq 'tex' || $target eq 'analyze') {
876: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
877: if ( ! $result ) {
1.201 albertel 878: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
879: $parser,$style);
1.170 www 880: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
881: }
882: $result='';
883: } elsif ($target eq 'edit') {
884: $result .=&Apache::edit::tag_start($target,$token);
885: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
886: }
887: return $result;
888: }
889:
890: sub end_instructorcomment {
1.159 albertel 891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 892: my $result;
893: if ($target eq "edit") {
894: $result.= &Apache::edit::tag_end($target,$token,'');
895: }
896: return $result;
1.4 tsai 897: }
898:
899: sub start_while {
1.159 albertel 900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
901:
1.160 albertel 902: my $result;
1.161 albertel 903: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 904: $target eq 'tex' || $target eq 'analyze') {
905: my $code = $token->[2]->{'condition'};
1.4 tsai 906:
1.160 albertel 907: push( @Apache::structuretags::whileconds, $code);
908: if (!$Apache::lonxml::default_homework_loaded) {
909: &Apache::lonxml::default_homework_load($safeeval);
910: }
911: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 912: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 913: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 914: push( @Apache::structuretags::whileline, $token->[5]);
915: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 916: if ( $result ) {
917: &Apache::lonxml::newparser($parser,\$bodytext);
918: }
919: } elsif ($target eq 'edit') {
920: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 921: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 922: $token,40);
923: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
924: } elsif ($target eq 'modified') {
925: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
926: $safeeval,'condition');
927: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 928: }
1.160 albertel 929: return $result;
1.4 tsai 930: }
931:
932: sub end_while {
1.159 albertel 933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 934: my $result;
935:
936: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
937: $target eq 'tex' || $target eq 'analyze') {
938: my $code = pop(@Apache::structuretags::whileconds);
939: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 940: my $line = pop(@Apache::structuretags::whileline);
941: my $return = &Apache::run::run($code,$safeeval);
942: my $starttime=time;
943: my $error=0;
944: while ($return) {
945: if (time-$starttime >
946: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
947: $return = 0; $error=1; next;
948: }
949: $result.=&Apache::scripttag::xmlparse($bodytext);
950: $return = &Apache::run::run($code,$safeeval);
951: }
952: if ($error) {
1.211 albertel 953: &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 954: }
955: } elsif ($target eq "edit") {
956: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 957: }
1.160 albertel 958: return $result;
1.1 albertel 959: }
1.6 tsai 960:
1.160 albertel 961: # <randomlist show="1">
1.6 tsai 962: # <tag1>..</tag1>
963: # <tag2>..</tag2>
964: # <tag3>..</tag3>
1.160 albertel 965: # ...
1.6 tsai 966: # </randomlist>
967: sub start_randomlist {
1.159 albertel 968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
969: my $result;
970: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
971: $target eq 'tex' || $target eq 'analyze') {
972: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
973: my $b_parser= HTML::TokeParser->new(\$body);
974: my $b_tok;
975: my @randomlist;
976: my $list_item;
977: while($b_tok = $b_parser->get_token() ) {
978: if($b_tok->[0] eq 'S') { # start tag
979: # get content of the tag until matching end tag
980: # get all text upto the matching tag
981: # and push the content into @randomlist
982: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
983: $b_parser);
984: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
985: push(@randomlist,$list_item);
986: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
987: # $list_item</b>";
988: }
989: if($b_tok->[0] eq 'T') { # text
990: # what to do with text in between tags?
991: # print "<b>TEXT $b_tok->[1]</b><br />";
992: }
993: # if($b_tok->[0] eq 'E') { # end tag, should not happen
994: # print "<b>END-TAG $b_tok->[1]</b><br />";
995: # }
996: }
997: my @idx_arr = (0 .. $#randomlist);
998: &Apache::structuretags::shuffle(\@idx_arr);
999: my $bodytext = '';
1000: my $show=$#randomlist;
1001: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1002: $showarg--;
1003: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1004: for(0 .. $show) {
1005: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1006: }
1007: &Apache::lonxml::newparser($parser,\$bodytext);
1008: } elsif ($target eq 'edit' ) {
1009: $result .=&Apache::edit::tag_start($target,$token);
1010: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1011: $token,5);
1012: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1013: } elsif ($target eq 'modified' ) {
1014: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1015: $safeeval,'show');
1016: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1017: }
1018: return $result;
1.7 tsai 1019: }
1020:
1021: sub shuffle {
1022: my $a=shift;
1023: my $i;
1.70 albertel 1024: if (defined(@$a)) {
1.251 albertel 1025: &Apache::response::pushrandomnumber();
1.159 albertel 1026: for($i=@$a;--$i;) {
1027: my $j=int(&Math::Random::random_uniform() * ($i+1));
1028: next if $i == $j;
1029: @$a[$i,$j] = @$a[$j,$i];
1030: }
1.251 albertel 1031: &Apache::response::poprandomnumber();
1.7 tsai 1032: }
1.6 tsai 1033: }
1034:
1035: sub end_randomlist {
1.159 albertel 1036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1037: my $result;
1038: if ($target eq 'edit' ) {
1039: $result=&Apache::edit::tag_end($target,$token,
1040: 'End Randomly Parsed Block');
1041: }
1042: return $result;
1.6 tsai 1043: }
1044:
1.11 albertel 1045: sub start_part {
1.159 albertel 1046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1047: my $result='';
1048: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1049: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1050: $Apache::inputtags::part=$id;
1.177 albertel 1051: push(@Apache::inputtags::partlist,$id);
1052: @Apache::inputtags::response=();
1.159 albertel 1053: @Apache::inputtags::previous=();
1054: @Apache::inputtags::previous_version=();
1.241 albertel 1055: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1056: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1057: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1058: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1059:
1.214 albertel 1060: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1061: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1062: &Apache::run::run($expression,$safeeval);
1.159 albertel 1063:
1064: if ($target eq 'meta') {
1.224 www 1065: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1066: return &Apache::response::mandatory_part_meta.
1067: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1068: } elsif ($target eq 'web' || $target eq 'grade' ||
1069: $target eq 'answer' || $target eq 'tex') {
1070: if ($hidden) {
1071: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1072: } else {
1073: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1074: push (@Apache::inputtags::status,$status);
1075: my $expression='$external::datestatus="'.$status.'";';
1076: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1077: &Apache::run::run($expression,$safeeval);
1.240 albertel 1078: if ($ENV{'request.state'} eq 'construct') {
1.241 albertel 1079: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1080: }
1.216 albertel 1081: if (( $status eq 'CLOSED' ) ||
1082: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1083: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1084: ( $status eq 'BANNED') ||
1085: ( $status eq 'UNAVAILABLE') ||
1086: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1087: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1088: if ( $target eq "web" ) {
1.211 albertel 1089: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1090: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1091: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1092: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1093: } else {
1.211 albertel 1094: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1095: }
1.159 albertel 1096: }
1097: } else {
1098: if ($target eq 'tex') {
1.195 sakharuk 1099: if (not $ENV{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1100: if ($$tagstack[-2] eq 'td') {
1101: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1102: } else {
1103: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1104: }
1.195 sakharuk 1105: }
1.159 albertel 1106: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1107: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1108: my @allkeys = split /,/,$allkeys;
1109: my $allow_print_points = 0;
1110: foreach my $partial_key (@allkeys) {
1.230 albertel 1111: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1112: if ($1 ne '0') {$allow_print_points=1;}
1113: }
1114: }
1115: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1116: } elsif ($target eq 'web') {
1117: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1118: }
1119: }
1120: }
1121: } elsif ($target eq 'edit') {
1122: $result.=&Apache::edit::tag_start($target,$token);
1123: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1124: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1125: ' '.
1126: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1127: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1128: } elsif ($target eq 'modified') {
1129: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1130: $safeeval,'id','display');
1.159 albertel 1131: if ($constructtag) {
1.225 albertel 1132: #limiting ids to only letters numbers, and space
1.224 www 1133: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1134: $result = &Apache::edit::rebuild_tag($token);
1135: $result.=&Apache::edit::handle_insert();
1136: }
1137: }
1138: return $result;
1.11 albertel 1139: }
1140:
1141: sub end_part {
1.159 albertel 1142: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1143: &Apache::lonxml::debug("in end_part $target ");
1144: my $status=$Apache::inputtags::status['-1'];
1145: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1146: my $result='';
1147: if ( $target eq 'meta' ) {
1148: $result='';
1.249 albertel 1149: } elsif ($target eq 'grade') {
1150: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1151: !$hidden) {
1152: $result=&Apache::inputtags::grade;
1153: } else {
1154: # move any submission data to .hidden
1155: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1156: }
1.159 albertel 1157: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1158: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1159: $target);
1.212 albertel 1160: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1161: $gradestatus='';
1162: }
1.159 albertel 1163: $result=$gradestatus;
1.265 sakharuk 1164: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1165: } elsif ($target eq 'edit') {
1166: $result=&Apache::edit::end_table();
1.159 albertel 1167: }
1168: pop @Apache::inputtags::status;
1169: $Apache::inputtags::part='';
1170: return $result;
1.11 albertel 1171: }
1.1 albertel 1172:
1.25 albertel 1173: sub start_preduedate {
1.159 albertel 1174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1175: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1176: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1177: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1178: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1179: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1180: &Apache::lonxml::get_all_text("/preduedate",$parser);
1181: }
1.24 albertel 1182: }
1.159 albertel 1183: return '';
1.24 albertel 1184: }
1185:
1.25 albertel 1186: sub end_preduedate {
1.159 albertel 1187: return '';
1.24 albertel 1188: }
1189:
1.25 albertel 1190: sub start_postanswerdate {
1.159 albertel 1191: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1192: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1193: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1194: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1195: }
1196: } elsif ($target eq 'tex') {
1.234 albertel 1197: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1198: }
1199: return '';
1.24 albertel 1200: }
1201:
1.25 albertel 1202: sub end_postanswerdate {
1.159 albertel 1203: return '';
1.24 albertel 1204: }
1205:
1.25 albertel 1206: sub start_notsolved {
1.159 albertel 1207: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1208: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1209: $target eq 'tex') {
1210: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1211: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1212: if ($gradestatus =~ /^correct/ &&
1213: &Apache::response::show_answer()) {
1.159 albertel 1214: &Apache::lonxml::debug("skipping");
1215: &Apache::lonxml::get_all_text("/notsolved",$parser);
1216: }
1.24 albertel 1217: }
1.159 albertel 1218: return '';
1.24 albertel 1219: }
1220:
1.25 albertel 1221: sub end_notsolved {
1.159 albertel 1222: return '';
1.24 albertel 1223: }
1224:
1225: sub start_solved {
1.159 albertel 1226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1227: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1228: $target eq 'tex') {
1229: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1230: if ($gradestatus !~ /^correct/ ||
1231: !&Apache::response::show_answer()) {
1.159 albertel 1232: &Apache::lonxml::get_all_text("/solved",$parser);
1233: }
1.24 albertel 1234: }
1.159 albertel 1235: return '';
1.24 albertel 1236: }
1237:
1238: sub end_solved {
1.248 albertel 1239: return '';
1240: }
1241:
1242: sub start_problemtype {
1243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1244: my $result;
1245: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1246: $target eq 'tex' || $target eq 'analyze') {
1247: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1248: if (!defined($mode)) { $mode='show'; }
1249: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1250: my $found=0;
1251: foreach my $type (split(',',$for)) {
1252: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1253: }
1254: if ($mode eq 'show' && !$found) {
1255: &Apache::lonxml::get_all_text("/problemtype",$parser);
1256: }
1257: if ($mode eq 'hide' && $found) {
1258: &Apache::lonxml::get_all_text("/problemtype",$parser);
1259: }
1260: } elsif ($target eq 'edit') {
1261: $result .=&Apache::edit::tag_start($target,$token);
1262: $result.=&Apache::edit::select_arg('Mode:','mode',
1263: [['show','Show'],
1264: ['hide','Hide']]
1265: ,$token);
1266: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1267: [ ['exam','Exam/Quiz Problem'],
1268: ['survey','Survey'],
1269: ['problem','Homework Problem'] ]
1270: ,$token);
1271: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1272: } elsif ($target eq 'modified') {
1273: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1274: $safeeval,'mode','for');
1275: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1276: }
1277: return $result;
1278: }
1279:
1280: sub end_problemtype {
1.159 albertel 1281: return '';
1.24 albertel 1282: }
1.34 albertel 1283:
1284: sub start_startouttext {
1.159 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1286: my @result=(''.'');
1287: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1288: return (@result);
1.34 albertel 1289: }
1.159 albertel 1290:
1.34 albertel 1291: sub end_startouttext {
1.159 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1293: my $result='';
1294: my $text='';
1295:
1296: if ($target eq 'edit') {
1297: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1298: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1299: <td>".&mt('Delete:').
1.159 albertel 1300: &Apache::edit::deletelist($target,$token)
1301: ."</td>
1.42 albertel 1302: <td>".
1.159 albertel 1303: &Apache::edit::insertlist($target,$token).
1304: &Apache::edit::end_row().
1305: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1306: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1307: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1308: }
1309: if ($target eq 'modified') {
1.219 albertel 1310: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1311: }
1312: if ($target eq 'tex') {
1313: $result .= '\noindent ';
1314: }
1315: return $result;
1.34 albertel 1316: }
1.159 albertel 1317:
1.34 albertel 1318: sub start_endouttext {
1.159 albertel 1319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1320: my $result='';
1321: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1322: if ($target eq "modified") {
1323: $result='<endouttext />'.
1324: &Apache::edit::handle_insertafter('startouttext'); }
1325: return $result;
1.34 albertel 1326: }
1.159 albertel 1327:
1.34 albertel 1328: sub end_endouttext {
1.159 albertel 1329: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1330: my @result=('','');
1331: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1332: return (@result);
1.34 albertel 1333: }
1.159 albertel 1334:
1.45 albertel 1335: sub delete_startouttext {
1.159 albertel 1336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1337: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1338: my $text=$$parser['-1']->get_text("/endouttext");
1339: my $ntoken=$$parser['-1']->get_token();
1340: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1341: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1342: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1343: # they did the last time round
1344: &Apache::lonxml::increasedepth($ntoken);
1345: &Apache::lonxml::decreasedepth($ntoken);
1346: return 1;
1.193 www 1347: }
1348:
1349: sub start_simpleeditbutton {
1350: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1351: my $result='';
1352: if (($target eq 'web') &&
1353: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1354: my $url=$ENV{'request.noversionuri'};
1.193 www 1355: $url=~s/\?.*$//;
1.194 www 1356: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1357: '<a href="'.$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 1358: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1359: }
1360: return $result;
1361: }
1362:
1363: sub end_simpleeditbutton {
1364: return '';
1.45 albertel 1365: }
1.34 albertel 1366:
1.1 albertel 1367: 1;
1368: __END__
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