Annotation of loncom/homework/structuretags.pm, revision 1.226
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.226 ! albertel 4: # $Id: structuretags.pm,v 1.225 2003/11/06 06:54:51 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.33 albertel 28: # 2/19 Guy
1.44 ng 29: # 6/26/2001 fixed extra web display at end of <web></web> tags
1.60 www 30: # 8/17,8/18,8/20 Gerd Kortemeyer
1.54 www 31:
1.133 sakharuk 32:
1.1 albertel 33: package Apache::structuretags;
34:
35: use strict;
36: use Apache::lonnet;
1.101 sakharuk 37: use Apache::File();
1.147 www 38: use Apache::lonmenu;
1.210 albertel 39: use Apache::lonlocal;
1.1 albertel 40:
1.78 harris41 41: BEGIN {
1.193 www 42: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext',
1.197 www 43: 'simpleeditbutton','definetag'));
1.10 albertel 44: }
45:
46: sub start_web {
1.159 albertel 47: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 48: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
49: if ($target eq 'web') {
50: return $bodytext;
1.159 albertel 51: }
52: return '';
1.10 albertel 53: }
54:
55: sub end_web {
1.44 ng 56: return '';
1.10 albertel 57: }
58:
59: sub start_tex {
1.159 albertel 60: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 61: my $result='';
1.200 albertel 62: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
63: if ($target eq 'tex') {
64: return $bodytext.' ';
1.159 albertel 65: }
1.198 sakharuk 66: return $result;;
1.10 albertel 67: }
68:
69: sub end_tex {
1.44 ng 70: return '';
1.9 albertel 71: }
72:
1.48 albertel 73: sub page_start {
1.159 albertel 74: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
75: my %found;
1.207 albertel 76: foreach my $taginside (@$tagstack) {
1.159 albertel 77: foreach my $taglookedfor ('html','body','form') {
78: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
79: }
80: }
81:
82: my $result;
83: my $head_tag_start;
84: if (!defined($found{'html'})) {
85: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
86: $parstack,$parser,$safeeval);
1.218 albertel 87: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target);
1.159 albertel 88: }
89: my $body_tag_start;
90: if (!defined($found{'body'})) {
91: $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.
92: 'onUnload="'.&Apache::lonmenu::unloadevents().'" ';
93: my $background=&Apache::lonxml::get_param('background',$parstack,
94: $safeeval);
1.199 www 95: if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }
1.159 albertel 96: if ($background) {
97: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
98: $background;
99: $body_tag_start.='background="'.$background.'" ';
100: } else {
101: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
102: $safeeval);
1.199 www 103: if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) {
1.159 albertel 104: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
105: } else {
106: $body_tag_start.='bgcolor="#ffffff"';
107: }
1.199 www 108: }
109: if ($ENV{'browser.fontenhance'} eq 'on') {
110: $body_tag_start.=' style="font-size: x-large;" ';
1.159 albertel 111: }
112: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
113: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
1.165 albertel 114: my ($symb,undef,undef,undef,$publicuser)=
115: &Apache::lonxml::whichuser();
116: if ($symb eq '' && !$publicuser) {
1.159 albertel 117: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 118: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 119: $body_tag_start.=$help;
120: }
121: }
122: }
123: my $form_tag_start;
124: if (!defined($found{'form'})) {
125: $form_tag_start='<form name="lonhomework" method="POST" action="'.
126: $ENV{'request.uri'}.'">';
127: }
128: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 129: }
130:
1.141 matthew 131: #use Time::HiRes();
1.105 albertel 132: sub get_resource_name {
1.159 albertel 133: my ($parstack,$safeeval)=@_;
1.204 albertel 134: if (defined($Apache::lonhomework::name)) {
135: return $Apache::lonhomework::name;
136: }
1.159 albertel 137: my $name=&Apache::lonnet::gettitle();
138: if ($name eq '') {
139: $name=&Apache::lonnet::EXT('resource.title');
140: if ($name eq 'con_lost') { $name = ''; }
141: }
1.204 albertel 142: if ($name!~/\S+/) {
143: $name=$ENV{'request.uri'};
1.205 albertel 144: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 145: }
1.159 albertel 146: $Apache::lonhomework::name=$name;
147: return $name;
1.105 albertel 148: }
149:
150: sub setup_rndseed {
1.159 albertel 151: my ($safeeval)=@_;
152: my $rndseed;
1.162 albertel 153: my ($symb)=&Apache::lonxml::whichuser();
154: if ($ENV{'request.state'} eq "construct" || $symb eq '') {
1.159 albertel 155: $rndseed=$ENV{'form.rndseed'};
156: if (!$rndseed) {
1.162 albertel 157: $rndseed=$Apache::lonhomework::history{'rndseed'};
158: if (!$rndseed) {
159: $rndseed=time;
160: $ENV{'form.rndseed'}=$rndseed;
161: }
162: }
1.210 albertel 163: if ($ENV{'form.resetdata'} eq &mt('New Problem Variation') ||
164: $ENV{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 165: srand(time);
166: $rndseed=int(rand(2100000000));
1.159 albertel 167: $ENV{'form.rndseed'}=$rndseed;
1.180 albertel 168: delete($ENV{'form.resetdata'});
169: delete($ENV{'form.newrandomization'});
1.159 albertel 170: }
1.187 albertel 171: if (defined($rndseed) && $rndseed ne int($rndseed)) {
172: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
173: }
1.221 albertel 174: if ($safeeval) {
175: &Apache::lonxml::debug("Setting rndseed to $rndseed");
176: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
177: }
1.159 albertel 178: }
179: return $rndseed;
1.105 albertel 180: }
181:
182: sub problem_edit_header {
1.159 albertel 183: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 184: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
185: <input type="submit" name="problemmode" value="'.&mt('Discard Edits and View').'" />
186: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
187: <input type="submit" name="Undo" value="'.&mt('undo').'" /> <hr />
188: <input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
189: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" /><br /><p> </p><table border="0"><tr><td bgcolor="#DDDDDD">
1.105 albertel 190: ';
191: }
192:
193: sub problem_edit_footer {
1.210 albertel 194: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
195: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />';
1.105 albertel 196: }
197:
198: sub problem_web_to_edit_header {
1.159 albertel 199: my ($rndseed)=@_;
1.210 albertel 200: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
201: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
202: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
203: <input type="submit" name="newrandomization" value="'.&mt('New Randomization').'" />
204: <input type="submit" name="resetdata" value="'.&mt('Reset Submissions').'" />
205: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 206: <input type="text" name="rndseed" width="10" value="'.
207: $rndseed.'"
208: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 209: <input type="checkbox" name="showallfoils" ';
1.159 albertel 210: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.210 albertel 211: $result.= ' />'.&mt(' Show All Foils').'
1.105 albertel 212: <hr />';
1.159 albertel 213: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 214: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 215: $result.= '<input type="submit" name="problemmode" value='.
216: &mt('"Calculate answers').'" /> for
1.136 albertel 217: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 218: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
219: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 220: '',undef,undef,300).
1.210 albertel 221: '<hr />';
1.159 albertel 222: return $result;
1.48 albertel 223: }
224:
1.65 albertel 225: sub initialize_storage {
1.159 albertel 226: %Apache::lonhomework::results=();
1.162 albertel 227: %Apache::lonhomework::history=();
1.159 albertel 228: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 229: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 230: %Apache::lonhomework::history=
231: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
232: my ($temp)=keys %Apache::lonhomework::history ;
233: &Apache::lonxml::debug("Return message of $temp");
234: } else {
235: %Apache::lonhomework::history=
236: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
237: }
238: #ignore error conditions
1.67 albertel 239: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 240: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 241: }
242:
243: # -------------------------------------------------------------finalize_storage
244: # Stores away the result has to a student's environment
245: # checks form.grade_ for specific values, other wises stores
246: # to the running users environment
247: sub finalize_storage {
1.159 albertel 248: my $result;
249: my ($temp) = keys %Apache::lonhomework::results;
250: if ( $temp ne '' ) {
251: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 252: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
253: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 254: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
255: $ENV{'request.uri'},'',$domain,$name);
256: &Apache::lonxml::debug('Construct Store return message:'.$result);
257: } else {
258: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
259: $symb,$courseid,$domain,$name);
260: &Apache::lonxml::debug('Store return message:'.$result);
261: }
1.67 albertel 262: }
1.159 albertel 263: return $result;
1.65 albertel 264: }
265:
266: sub checkout_msg {
1.211 albertel 267: my %lt=&Apache::lonlocal::texthash(
268: 'resource'=>'The resource needs to be checked out',
269: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
270: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
271: 'checkout'=>'Check out Exam for Viewing',
272: 'checkout?'=>'Check out Exam?');
1.159 albertel 273: return (<<ENDCHECKOUT);
1.211 albertel 274: <h2>$lt{'resource'}</h2>
275: <p>$lt{'id_expln'}</p>
276: <font color="red">
277: <p>$lt{'warning'}</p>
1.91 albertel 278: </font>
279: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
280: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 281: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 282: </form>
283: ENDCHECKOUT
284: }
285:
1.204 albertel 286: sub init_problem_globals {
287: my ($type)=@_;
288: #initialize globals
289: if ($type eq 'problem') {
290: $Apache::inputtags::part='0';
291: @Apache::inputtags::partlist=('0');
292: $Apache::lonhomework::problemstatus=
293: &Apache::lonnet::EXT('resource.0.problemstatus');
294: } else {
295: $Apache::inputtags::part='';
296: @Apache::inputtags::partlist=();
297: $Apache::lonhomework::problemstatus='';
298: }
299: @Apache::inputtags::responselist = ();
300: @Apache::inputtags::importlist = ();
301: @Apache::inputtags::previous=();
302: @Apache::inputtags::previous_version=();
303: $Apache::structuretags::printanswer='No';
304: @Apache::structuretags::whileconds=();
305: @Apache::structuretags::whilebody=();
306: @Apache::structuretags::whileline=();
307: $Apache::lonhomework::scantronmode=0;
308: undef($Apache::lonhomework::name);
309:
310: }
311:
312: sub reset_problem_globals {
313: my ($type)=@_;
314: undef(%Apache::lonhomework::history);
315: undef(%Apache::lonhomework::results);
316: undef($Apache::inputtags::part);
1.208 albertel 317: #don't undef this, lonhomework.pm takes care of this, we use this to
318: #detect if we try to do 2 problems in one file
319: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 320: undef($Apache::lonhomework::name);
321: }
322:
1.9 albertel 323: sub start_problem {
1.159 albertel 324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 325:
1.184 albertel 326: if ( $Apache::inputtags::part ne '' ||
327: $Apache::lonhomework::parsing_a_problem) {
328: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
329: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 330: return '';
331: }
1.184 albertel 332:
333: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 334: &init_problem_globals('problem');
1.166 albertel 335:
336: if (defined($ENV{'scantron.maxquest'})) {
337: $Apache::lonhomework::scantronmode=1;
338: }
1.161 albertel 339:
1.159 albertel 340: if ($target ne 'analyze') {
341: &initialize_storage();
342: if ($target eq 'web') {
343: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
344: }
345: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
346: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
347: }
1.164 albertel 348: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 349: my $uri=$ENV{'request.uri'};
350: if ($uri=~/\.(\w+)$/) {
351: $Apache::lonhomework::type=$1;
352: &Apache::lonxml::debug("Using type of $1");
353: } else {
354: $Apache::lonhomework::type='problem';
355: &Apache::lonxml::debug("Using default type, problem, :$uri:");
356: }
1.87 albertel 357: }
1.58 www 358:
1.159 albertel 359: #added vars to the scripting enviroment
1.213 albertel 360: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.24 albertel 361: &Apache::run::run($expression,$safeeval);
1.159 albertel 362: my $status;
363: my $accessmsg;
364:
365: #should get back a <html> or the neccesary stuff to start XML/MathML
366: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
367: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
368: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
369:
370: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
371: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
372: $target eq 'tex') {
373: #handle exam checkout
374: if ($Apache::lonhomework::type eq 'exam') {
375: my $token=
376: $Apache::lonhomework::history{"resource.0.outtoken"};
377: if (($ENV{'form.doescheckout'}) && (!$token)) {
378: $token=&Apache::lonxml::maketoken();
379: $Apache::lonhomework::history{"resource.0.outtoken"}=
380: $token;
381: }
382: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 383: }
1.159 albertel 384:
385: #handle rand seed in construction space
386: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 387: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 388: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 389: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
390: $rndseed.'" />'.
391: '<input type="submit" name="resetdata"
1.211 albertel 392: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 393: '<input type="hidden" name="username"
1.185 albertel 394: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 395: }
1.159 albertel 396: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
397: push (@Apache::inputtags::status,$status);
398: my $expression='$external::datestatus="'.$status.'";';
399: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
400: &Apache::run::run($expression,$safeeval);
401: &Apache::lonxml::debug("Got $status");
402: if (( $status eq 'CLOSED' ) ||
403: ( $status eq 'UNCHECKEDOUT') ||
404: ( $status eq 'BANNED') ||
1.216 albertel 405: ( $status eq 'UNAVAILABLE') ||
406: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 407: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
408: if ( $target eq "web" ) {
409: $result.= $head_tag_start.'</head>';
410: my $msg=$body_tag_start;
411: if ($status eq 'UNAVAILABLE') {
1.211 albertel 412: $result.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.159 albertel 413: } else {
1.211 albertel 414: $result.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 415: }
1.216 albertel 416: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 417: $msg.='The problem '.$accessmsg;
418: } elsif ($status eq 'UNCHECKEDOUT') {
419: $msg.=&checkout_msg;
420: }
421: $result.=$msg.'<br />';
422: } elsif ($target eq 'tex') {
423: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
424: if ($status eq 'UNAVAILABLE') {
1.211 albertel 425: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 426: } else {
1.211 albertel 427: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 428: }
429: }
430: } elsif ($target eq 'web') {
431: my $name= &get_resource_name($parstack,$safeeval);
432: if ($status eq 'CAN_ANSWER') {
433: # create a page header and exit
434: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 435: $body_tag_start \n $form_tag_start".
1.159 albertel 436: '<input type="hidden" name="submitted" value="yes" />';
437: if ($ENV{'request.state'} eq "construct") {
1.187 albertel 438: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
1.159 albertel 439: }
440: # if we are viewing someone else preserve that info
441: if (defined $ENV{'form.grade_symb'}) {
442: foreach my $field ('symb','courseid','domain','username') {
443: $result .= '<input type="hidden" name="grade_'.$field.
444: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
445: }
446: }
447: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'
1.216 albertel 448: || $status eq 'CLOSED' || $status eq 'UNAVALAILABLE' ||
449: $status eq 'INVALID_ACCESS') {
1.159 albertel 450: $result.=$head_tag_start.
451: "<title>$name</title></head>\n$body_tag_start\n";
452: }
453: } elsif ($target eq 'tex') {
1.192 sakharuk 454: my $startminipage = '';
1.191 sakharuk 455: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 456: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 457: }
1.159 albertel 458: my $id = $Apache::inputtags::part;
459: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 460: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
461: my @packages = split /,/,$packages;
462: my $allow_print_points = 0;
463: foreach my $partial_key (@packages) {
464: if ($partial_key=~m/part_0/) {
465: $allow_print_points=1;
1.159 albertel 466: }
467: }
468: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
469: $duedate = POSIX::strftime("%c",localtime($duedate));
470: my $temp_file;
471: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
472: if (-e $filename) {
473: $temp_file = Apache::File->new($filename);
474: } else {
475: $temp_file = Apache::File->new('>>'.$filename);
476: }
477: my @due_file_content = <$temp_file>;
478: my $due_file_content = $due_file_content[$#due_file_content];
479: chomp $due_file_content;
480: my $name_of_resourse= &get_resource_name($parstack,$safeeval);
481: if ($due_file_content ne $duedate) {
482: $temp_file = Apache::File->new('>'.$filename);
483: print $temp_file "$duedate\n";
484: if (not $ENV{'request.symb'} =~ m/\.page_/) {
485: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 486: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 487: } else {
1.206 sakharuk 488: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 489: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
490: }
1.104 sakharuk 491: } else {
1.159 albertel 492: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 493: }
1.101 sakharuk 494: } else {
1.159 albertel 495: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 496: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 497: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
498: } else {
499: $result .= '\vskip 1mm \\\\\\\\';
500: }
501: }
1.99 sakharuk 502: }
1.159 albertel 503: } elsif ($target eq 'edit') {
504: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
505: &problem_edit_header();
1.226 ! albertel 506: $Apache::lonxml::warnings_error_header=
! 507: &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 508: my $temp=&Apache::edit::insertlist($target,$token);
509: $result.=$temp;
510: } elsif ($target eq 'modified') {
511: $result=$token->[4];
512: $result.=&Apache::edit::handle_insert();
513: } else {
514: # page_start returned a starting result, delete it if we don't need it
515: $result = '';
1.99 sakharuk 516: }
1.159 albertel 517: return $result;
1.9 albertel 518: }
519:
520: sub end_problem {
1.159 albertel 521: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
522: my $result='';
523: my $status=$Apache::inputtags::status['-1'];
524: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
525: $target eq 'tex') {
526: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
527: $status eq 'CAN_ANSWER' ) {
528: # if part is zero, no <part>s existed, so we need to the grading
529: &Apache::inputtags::grade;
530: } elsif ( ($target eq 'web' || $target eq 'tex') &&
531: $Apache::inputtags::part eq '0' &&
532: $status ne 'UNCHECKEDOUT') {
533: # if part is zero, no <part>s existed, so we need show the current
534: # grading status
535: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
536: $result.= $gradestatus;
537: }
538: if (
539: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
540: ($target eq 'answer') || ($target eq 'tex')
541: ) {
542: if ($status eq 'CAN_ANSWER') {
1.172 albertel 543: if ($target ne 'tex' &&
544: $ENV{'form.answer_output_mode'} ne 'tex') {
545: $result.="</form></body>\n";
1.159 albertel 546: }
547: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' ||
1.216 albertel 548: $status eq 'UNCHECKEDOUT' || $status eq 'INVALID_ACCESS') {
1.189 sakharuk 549: if ($target ne 'tex' &&
550: $ENV{'form.answer_output_mode'} ne 'tex') {
1.159 albertel 551: $result.="</body>\n";
552: }
553: }
554: if ($target eq 'web') {
555: $result.=&Apache::lonxml::xmlend();
556: } elsif ($target eq 'tex') {
1.178 sakharuk 557: my $endminipage = '';
1.191 sakharuk 558: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 559: $endminipage = '\end{minipage}';
560: }
1.174 sakharuk 561: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 562: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 563: $result .= $endminipage.'\end{document} ';
1.159 albertel 564: } else {
565: $result .= '';
566: }
567: }
568: }
569: if ($target eq 'grade') {
570: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
571: &finalize_storage();
572: }
1.172 albertel 573: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 574: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 575: $result.='</html>'; # normally we get it from xmlend, but in CSTR
576: # we always show answer mode too.
1.159 albertel 577: }
578: } elsif ($target eq 'meta') {
579: if ($Apache::inputtags::part eq '0') {
1.179 albertel 580: @Apache::inputtags::response=();
1.159 albertel 581: $result=&Apache::response::mandatory_part_meta;
582: }
1.215 albertel 583: $result.=&Apache::response::meta_part_order();
1.159 albertel 584: } elsif ($target eq 'edit') {
585: &Apache::lonxml::debug("in end_problem with $target, edit");
586: $result = &problem_edit_footer();
587: }
1.155 albertel 588:
1.177 albertel 589: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
590: &Apache::inputtags::check_for_duplicate_ids();
591: }
1.204 albertel 592:
593: &reset_problem_globals('problem');
1.159 albertel 594:
595: return $result;
1.48 albertel 596: }
597:
1.108 albertel 598:
1.48 albertel 599: sub start_library {
1.159 albertel 600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
601: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.204 albertel 602: if ($$tagstack[0] eq 'library') { &init_problem_globals('library') };
1.159 albertel 603: if ($target eq 'edit') {
604: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
605: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
606: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
607: &problem_edit_header();
608: my $temp=&Apache::edit::insertlist($target,$token);
609: $result.=$temp;
610: } elsif ($target eq 'modified') {
611: $result=$token->[4];
612: $result.=&Apache::edit::handle_insert();
613: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
614: $ENV{'request.state'} eq "construct" ) {
615: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
616: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
617: my $name=&get_resource_name($parstack,$safeeval);
618: my $rndseed=&setup_rndseed($safeeval);
619: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 620: $body_tag_start \n $form_tag_start".
1.159 albertel 621: '<input type="hidden" name="submitted" value="yes" />';
622: $result.=&problem_web_to_edit_header($rndseed);
623: }
624: return $result;
1.48 albertel 625: }
626:
627: sub end_library {
1.159 albertel 628: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
629: my $result='';
630: if ($target eq 'edit') {
631: $result=&problem_edit_footer();
632: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
633: $ENV{'request.state'} eq "construct") {
634: $result.='</form></body>'.&Apache::lonxml::xmlend();
635: }
1.204 albertel 636: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 637: return $result;
1.197 www 638: }
639:
640: sub start_definetag {
641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
642:
643: my $result;
644:
645: my $name = $token->[2]->{'name'};
646: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
647: if ($name=~/^\//) {
648: $result=
649: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
650: } else {
651: $result=
652: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
653: }
654: $skip=~s/\</\<\;/gs;
655: $skip=~s/\>/\>\;/gs;
656: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
657: return $result;
658: }
659:
660: sub end_definetag {
661: return '';
1.1 albertel 662: }
663:
664: sub start_block {
1.201 albertel 665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 666:
667: my $result;
1.1 albertel 668:
1.160 albertel 669: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 670: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 671: my $code = $token->[2]->{'condition'};
1.201 albertel 672: if (defined($code)) {
1.137 albertel 673: if (!$Apache::lonxml::default_homework_loaded) {
674: &Apache::lonxml::default_homework_load($safeeval);
675: }
1.131 albertel 676: $result = &Apache::run::run($code,$safeeval);
677: &Apache::lonxml::debug("block :$code: returned :$result:");
678: } else {
679: $result='1';
680: }
681: if ( ! $result ) {
1.201 albertel 682: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 683: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
684: }
685: $result='';
686: } elsif ($target eq 'edit') {
687: $result .=&Apache::edit::tag_start($target,$token);
688: $result .=&Apache::edit::text_arg('Test Condition:','condition',
689: $token,40);
690: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
691: } elsif ($target eq 'modified') {
692: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
693: $safeeval,'condition');
694: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 695: }
1.131 albertel 696: return $result;
1.1 albertel 697: }
698:
699: sub end_block {
1.167 www 700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
701: my $result;
702: if ($target eq "edit") {
703: $result.= &Apache::edit::tag_end($target,$token,'');
704: }
705: return $result;
706: }
707:
708: sub start_languageblock {
1.201 albertel 709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 710:
711: my $result;
712:
713: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
714: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 715: my $include = $token->[2]->{'include'};
716: my $exclude = $token->[2]->{'exclude'};
717: my %languages=&Apache::loncommon::display_languages();
718: $result='1';
719: if ($include) {
720: $result='';
721: foreach (split(/\,/,$include)) {
722: if ($languages{$_}) { $result='1'; }
723: }
724: }
725: if ($exclude) {
726: foreach (split(/\,/,$exclude)) {
727: if ($languages{$_}) { $result='0'; }
728: }
729: }
730: if ( ! $result ) {
731: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
732: $style);
733: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
734: }
735: $result='';
1.167 www 736: } elsif ($target eq 'edit') {
737: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 738: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 739: $token,40);
1.211 albertel 740: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 741: $token,40);
742: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
743: } elsif ($target eq 'modified') {
744: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 745: $safeeval,'include',
746: 'exclude');
1.167 www 747: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
748: }
749: return $result;
750: }
751:
752: sub end_languageblock {
1.170 www 753: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
754: my $result;
1.201 albertel 755: if ($target eq "edit") {
1.170 www 756: $result.= &Apache::edit::tag_end($target,$token,'');
757: }
758: return $result;
759: }
760:
761: sub start_instructorcomment {
1.201 albertel 762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 763:
764: my $result;
765:
766: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
767: $target eq 'tex' || $target eq 'analyze') {
768: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
769: if ( ! $result ) {
1.201 albertel 770: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
771: $parser,$style);
1.170 www 772: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
773: }
774: $result='';
775: } elsif ($target eq 'edit') {
776: $result .=&Apache::edit::tag_start($target,$token);
777: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
778: }
779: return $result;
780: }
781:
782: sub end_instructorcomment {
1.159 albertel 783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 784: my $result;
785: if ($target eq "edit") {
786: $result.= &Apache::edit::tag_end($target,$token,'');
787: }
788: return $result;
1.4 tsai 789: }
790:
791: sub start_while {
1.159 albertel 792: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
793:
1.160 albertel 794: my $result;
1.161 albertel 795: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 796: $target eq 'tex' || $target eq 'analyze') {
797: my $code = $token->[2]->{'condition'};
1.4 tsai 798:
1.160 albertel 799: push( @Apache::structuretags::whileconds, $code);
800: if (!$Apache::lonxml::default_homework_loaded) {
801: &Apache::lonxml::default_homework_load($safeeval);
802: }
803: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 804: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 805: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 806: push( @Apache::structuretags::whileline, $token->[5]);
807: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 808: if ( $result ) {
809: &Apache::lonxml::newparser($parser,\$bodytext);
810: }
811: } elsif ($target eq 'edit') {
812: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 813: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 814: $token,40);
815: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
816: } elsif ($target eq 'modified') {
817: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
818: $safeeval,'condition');
819: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 820: }
1.160 albertel 821: return $result;
1.4 tsai 822: }
823:
824: sub end_while {
1.159 albertel 825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 826: my $result;
827:
828: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
829: $target eq 'tex' || $target eq 'analyze') {
830: my $code = pop(@Apache::structuretags::whileconds);
831: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 832: my $line = pop(@Apache::structuretags::whileline);
833: my $return = &Apache::run::run($code,$safeeval);
834: my $starttime=time;
835: my $error=0;
836: while ($return) {
837: if (time-$starttime >
838: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
839: $return = 0; $error=1; next;
840: }
841: $result.=&Apache::scripttag::xmlparse($bodytext);
842: $return = &Apache::run::run($code,$safeeval);
843: }
844: if ($error) {
1.211 albertel 845: &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 846: }
847: } elsif ($target eq "edit") {
848: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 849: }
1.160 albertel 850: return $result;
1.1 albertel 851: }
1.6 tsai 852:
1.160 albertel 853: # <randomlist show="1">
1.6 tsai 854: # <tag1>..</tag1>
855: # <tag2>..</tag2>
856: # <tag3>..</tag3>
1.160 albertel 857: # ...
1.6 tsai 858: # </randomlist>
859: sub start_randomlist {
1.159 albertel 860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
861: my $result;
862: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
863: $target eq 'tex' || $target eq 'analyze') {
864: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
865: my $b_parser= HTML::TokeParser->new(\$body);
866: my $b_tok;
867: my @randomlist;
868: my $list_item;
869: while($b_tok = $b_parser->get_token() ) {
870: if($b_tok->[0] eq 'S') { # start tag
871: # get content of the tag until matching end tag
872: # get all text upto the matching tag
873: # and push the content into @randomlist
874: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
875: $b_parser);
876: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
877: push(@randomlist,$list_item);
878: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
879: # $list_item</b>";
880: }
881: if($b_tok->[0] eq 'T') { # text
882: # what to do with text in between tags?
883: # print "<b>TEXT $b_tok->[1]</b><br />";
884: }
885: # if($b_tok->[0] eq 'E') { # end tag, should not happen
886: # print "<b>END-TAG $b_tok->[1]</b><br />";
887: # }
888: }
889: my @idx_arr = (0 .. $#randomlist);
890: &Apache::structuretags::shuffle(\@idx_arr);
891: my $bodytext = '';
892: my $show=$#randomlist;
893: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
894: $showarg--;
895: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
896: for(0 .. $show) {
897: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
898: }
899: &Apache::lonxml::newparser($parser,\$bodytext);
900: } elsif ($target eq 'edit' ) {
901: $result .=&Apache::edit::tag_start($target,$token);
902: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
903: $token,5);
904: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
905: } elsif ($target eq 'modified' ) {
906: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
907: $safeeval,'show');
908: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
909: }
910: return $result;
1.7 tsai 911: }
912:
913: sub shuffle {
914: my $a=shift;
915: my $i;
1.70 albertel 916: if (defined(@$a)) {
1.159 albertel 917: &Apache::response::setrandomnumber();
918: for($i=@$a;--$i;) {
919: my $j=int(&Math::Random::random_uniform() * ($i+1));
920: next if $i == $j;
921: @$a[$i,$j] = @$a[$j,$i];
922: }
1.7 tsai 923: }
1.6 tsai 924: }
925:
926: sub end_randomlist {
1.159 albertel 927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
928: my $result;
929: if ($target eq 'edit' ) {
930: $result=&Apache::edit::tag_end($target,$token,
931: 'End Randomly Parsed Block');
932: }
933: return $result;
1.6 tsai 934: }
935:
1.11 albertel 936: sub start_part {
1.159 albertel 937: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
938: my $result='';
939: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
940: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
941: $Apache::inputtags::part=$id;
1.177 albertel 942: push(@Apache::inputtags::partlist,$id);
943: @Apache::inputtags::response=();
1.159 albertel 944: @Apache::inputtags::previous=();
945: @Apache::inputtags::previous_version=();
1.169 albertel 946: $Apache::lonhomework::problemstatus=
947: &Apache::lonnet::EXT("resource.$id.problemstatus");
1.159 albertel 948: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.214 albertel 949: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.209 albertel 950: &Apache::run::run($expression,$safeeval);
1.159 albertel 951:
952: if ($target eq 'meta') {
1.224 www 953: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
954: return &Apache::response::mandatory_part_meta.
955: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 956: } elsif ($target eq 'web' || $target eq 'grade' ||
957: $target eq 'answer' || $target eq 'tex') {
958: if ($hidden) {
959: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
960: } else {
961: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
962: push (@Apache::inputtags::status,$status);
963: my $expression='$external::datestatus="'.$status.'";';
964: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
965: &Apache::run::run($expression,$safeeval);
1.216 albertel 966: if (( $status eq 'CLOSED' ) ||
967: ( $status eq 'UNCHECKEDOUT') ||
968: ( $status eq 'BANNED') ||
969: ( $status eq 'UNAVAILABLE') ||
970: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 971: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
972: if ( $target eq "web" ) {
1.211 albertel 973: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 974: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 975: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 976: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 977: } else {
1.211 albertel 978: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 979: }
1.159 albertel 980: }
981: } else {
982: if ($target eq 'tex') {
1.195 sakharuk 983: if (not $ENV{'form.problem_split'}=~/yes/) {
984: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
985: }
1.159 albertel 986: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.222 sakharuk 987: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'keys');
988: my @allkeys = split /,/,$allkeys;
989: my $allow_print_points = 0;
990: foreach my $partial_key (@allkeys) {
991: if ($partial_key=~m/\_(\d*)\_weight/) {
992: if ($1 ne '0') {$allow_print_points=1;}
993: }
994: }
995: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.159 albertel 996: }
997: }
998: }
999: } elsif ($target eq 'edit') {
1000: $result.=&Apache::edit::tag_start($target,$token);
1001: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1002: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1003: ' '.
1004: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1005: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1006: } elsif ($target eq 'modified') {
1007: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1008: $safeeval,'id','display');
1.159 albertel 1009: if ($constructtag) {
1.225 albertel 1010: #limiting ids to only letters numbers, and space
1.224 www 1011: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1012: $result = &Apache::edit::rebuild_tag($token);
1013: $result.=&Apache::edit::handle_insert();
1014: }
1015: }
1016: return $result;
1.11 albertel 1017: }
1018:
1019: sub end_part {
1.159 albertel 1020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1021: &Apache::lonxml::debug("in end_part $target ");
1022: my $status=$Apache::inputtags::status['-1'];
1023: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1024: my $result='';
1025: if ( $target eq 'meta' ) {
1026: $result='';
1027: } elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) {
1028: $result=&Apache::inputtags::grade;
1029: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1030: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1031: $target);
1.212 albertel 1032: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1033: $gradestatus='';
1034: }
1.159 albertel 1035: $result=$gradestatus;
1.181 albertel 1036: } elsif ($target eq 'edit') {
1037: $result=&Apache::edit::end_table();
1.159 albertel 1038: }
1039: pop @Apache::inputtags::status;
1040: $Apache::inputtags::part='';
1041: return $result;
1.11 albertel 1042: }
1.1 albertel 1043:
1.25 albertel 1044: sub start_preduedate {
1.159 albertel 1045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1046: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1047: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1048: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' &&
1049: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1050: &Apache::lonxml::get_all_text("/preduedate",$parser);
1051: }
1.24 albertel 1052: }
1.159 albertel 1053: return '';
1.24 albertel 1054: }
1055:
1.25 albertel 1056: sub end_preduedate {
1.159 albertel 1057: return '';
1.24 albertel 1058: }
1059:
1.25 albertel 1060: sub start_postanswerdate {
1.159 albertel 1061: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1062: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1063: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1064: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1065: }
1066: } elsif ($target eq 'tex') {
1067: return '\vskip 0 mm \noindent';
1068: }
1069: return '';
1.24 albertel 1070: }
1071:
1.25 albertel 1072: sub end_postanswerdate {
1.159 albertel 1073: return '';
1.24 albertel 1074: }
1075:
1.25 albertel 1076: sub start_notsolved {
1.159 albertel 1077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1078: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1079: $target eq 'tex') {
1080: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1081: &Apache::lonxml::debug("not solved has :$gradestatus:");
1082: if ($gradestatus =~ /^correct/) {
1083: &Apache::lonxml::debug("skipping");
1084: &Apache::lonxml::get_all_text("/notsolved",$parser);
1085: }
1.24 albertel 1086: }
1.159 albertel 1087: return '';
1.24 albertel 1088: }
1089:
1.25 albertel 1090: sub end_notsolved {
1.159 albertel 1091: return '';
1.24 albertel 1092: }
1093:
1094: sub start_solved {
1.159 albertel 1095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1096: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1097: $target eq 'tex') {
1098: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1099: if ($gradestatus !~ /^correct/) {
1100: &Apache::lonxml::get_all_text("/solved",$parser);
1101: }
1.24 albertel 1102: }
1.159 albertel 1103: return '';
1.24 albertel 1104: }
1105:
1106: sub end_solved {
1.159 albertel 1107: return '';
1.24 albertel 1108: }
1.34 albertel 1109:
1110: sub start_startouttext {
1.159 albertel 1111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1112: my @result=(''.'');
1113: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1114: return (@result);
1.34 albertel 1115: }
1.159 albertel 1116:
1.34 albertel 1117: sub end_startouttext {
1.159 albertel 1118: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1119: my $result='';
1120: my $text='';
1121:
1122: if ($target eq 'edit') {
1123: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1124: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1125: <td>".&mt('Delete:').
1.159 albertel 1126: &Apache::edit::deletelist($target,$token)
1127: ."</td>
1.42 albertel 1128: <td>".
1.159 albertel 1129: &Apache::edit::insertlist($target,$token).
1130: &Apache::edit::end_row().
1131: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1132: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1133: &Apache::edit::editfield($token->[1],$text,"",80,4);
1134: }
1135: if ($target eq 'modified') {
1.219 albertel 1136: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1137: }
1138: if ($target eq 'tex') {
1139: $result .= '\noindent ';
1140: }
1141: return $result;
1.34 albertel 1142: }
1.159 albertel 1143:
1.34 albertel 1144: sub start_endouttext {
1.159 albertel 1145: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1146: my $result='';
1147: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1148: if ($target eq "modified") {
1149: $result='<endouttext />'.
1150: &Apache::edit::handle_insertafter('startouttext'); }
1151: return $result;
1.34 albertel 1152: }
1.159 albertel 1153:
1.34 albertel 1154: sub end_endouttext {
1.159 albertel 1155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1156: my @result=('','');
1157: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1158: return (@result);
1.34 albertel 1159: }
1.159 albertel 1160:
1.45 albertel 1161: sub delete_startouttext {
1.159 albertel 1162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1163: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1164: my $text=$$parser['-1']->get_text("/endouttext");
1165: my $ntoken=$$parser['-1']->get_token();
1166: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1167: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1168: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1169: # they did the last time round
1170: &Apache::lonxml::increasedepth($ntoken);
1171: &Apache::lonxml::decreasedepth($ntoken);
1172: return 1;
1.193 www 1173: }
1174:
1175: sub start_simpleeditbutton {
1176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1177: my $result='';
1178: if (($target eq 'web') &&
1179: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1180: my $url=$ENV{'request.noversionuri'};
1.193 www 1181: $url=~s/\?.*$//;
1.194 www 1182: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1183: '<a href="'.$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 1184: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1185: }
1186: return $result;
1187: }
1188:
1189: sub end_simpleeditbutton {
1190: return '';
1.45 albertel 1191: }
1.34 albertel 1192:
1.1 albertel 1193: 1;
1194: __END__
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