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