Annotation of loncom/homework/structuretags.pm, revision 1.323
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.323 ! albertel 4: # $Id: structuretags.pm,v 1.322 2005/11/16 20:37:37 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.159 albertel 116: }
117: my $body_tag_start;
1.318 albertel 118: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
119: if ($env{'environment.remote'} eq 'off') {
120: if ($target eq 'web' || $target eq 'edit') {
121: $body_tag_start=&Apache::loncommon::bodytag();
122: $body_tag_start.=&Apache::lonxml::message_location();
123: }
124: } else {
125: if ($target eq 'web' || $target eq 'edit') {
126: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
127: $body_tag_start.=&Apache::lonxml::message_location();
128: }
1.297 albertel 129: }
1.272 albertel 130: } elsif (!defined($found{'body'})) {
1.159 albertel 131: my $background=&Apache::lonxml::get_param('background',$parstack,
132: $safeeval);
1.290 albertel 133: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
134: $safeeval);
1.299 albertel 135: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 136: if ( ($target eq 'web' || $target eq 'webgrade')
137: && $env{'request.state'} ne 'construct') {
1.165 albertel 138: my ($symb,undef,undef,undef,$publicuser)=
139: &Apache::lonxml::whichuser();
140: if ($symb eq '' && !$publicuser) {
1.159 albertel 141: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 142: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 143: $body_tag_start.=$help;
144: }
145: }
1.245 albertel 146: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 147: }
148: my $form_tag_start;
149: if (!defined($found{'form'})) {
1.281 albertel 150: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 151: my $uri=$env{'request.uri'};
152: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 153: $form_tag_start.=$uri.'">';
1.159 albertel 154: }
155: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 156: }
157:
1.141 matthew 158: #use Time::HiRes();
1.105 albertel 159: sub get_resource_name {
1.159 albertel 160: my ($parstack,$safeeval)=@_;
1.204 albertel 161: if (defined($Apache::lonhomework::name)) {
162: return $Apache::lonhomework::name;
163: }
1.279 albertel 164: my ($symb)=&Apache::lonxml::whichuser();
165: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 166: if ($name eq '') {
167: $name=&Apache::lonnet::EXT('resource.title');
168: if ($name eq 'con_lost') { $name = ''; }
169: }
1.204 albertel 170: if ($name!~/\S+/) {
1.284 albertel 171: $name=$env{'request.uri'};
1.205 albertel 172: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 173: }
1.159 albertel 174: $Apache::lonhomework::name=$name;
175: return $name;
1.105 albertel 176: }
177:
178: sub setup_rndseed {
1.159 albertel 179: my ($safeeval)=@_;
180: my $rndseed;
1.162 albertel 181: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 182: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 183: $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 184: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 185: ['rndseed']);
1.284 albertel 186: $rndseed=$env{'form.rndseed'};
1.159 albertel 187: if (!$rndseed) {
1.162 albertel 188: $rndseed=$Apache::lonhomework::history{'rndseed'};
189: if (!$rndseed) {
190: $rndseed=time;
191: }
1.284 albertel 192: $env{'form.rndseed'}=$rndseed;
1.162 albertel 193: }
1.284 albertel 194: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
195: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 196: srand(time);
197: $rndseed=int(rand(2100000000));
1.284 albertel 198: $env{'form.rndseed'}=$rndseed;
199: delete($env{'form.resetdata'});
200: delete($env{'form.newrandomization'});
1.159 albertel 201: }
1.187 albertel 202: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 203: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 204: }
1.247 albertel 205: if ($Apache::lonhomework::history{'resource.CODE'}) {
206: $rndseed=&Apache::lonnet::rndseed();
207: }
1.221 albertel 208: if ($safeeval) {
209: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 210: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 211: }
1.159 albertel 212: }
213: return $rndseed;
1.105 albertel 214: }
215:
1.268 albertel 216: sub remember_problem_state {
217: return '
1.284 albertel 218: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
219: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
220: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 221: }
222:
1.105 albertel 223: sub problem_edit_header {
1.268 albertel 224: return '<input type="hidden" name="submitted" value="edit" />'.
225: &Apache::structuretags::remember_problem_state().'
1.210 albertel 226: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 227: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
228: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
229: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
230: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
231: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 232: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
233: .'</td></tr></table>'.
1.282 albertel 234: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 235: }
236:
237: sub problem_edit_footer {
1.210 albertel 238: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 239: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
240: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 241: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 242: }
243:
1.235 albertel 244: sub option {
245: my ($value,$name) = @_;
246: my $result ="<option value='".$value."' ";
1.284 albertel 247: if ($env{'form.'.$name} eq $value) {
1.235 albertel 248: $result.=" selected='on' ";
249: }
250: $result.='>';
251: return $result;
252: }
253:
1.105 albertel 254: sub problem_web_to_edit_header {
1.159 albertel 255: my ($rndseed)=@_;
1.313 albertel 256: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
257: if (!$Apache::lonhomework::parsing_a_task) {
258: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
259: }
260: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 261: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
262: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 263: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 264: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 265: $rndseed.'"
1.270 albertel 266: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 267: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 268: my $show_all_foils_text =
269: ($Apache::lonhomework::parsing_a_task) ?
270: &mt(' Show All Instances')
271: : &mt(' Show All Foils');
272:
1.284 albertel 273: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 274: $result.= ' />'.$show_all_foils_text.
1.228 www 275: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 276: '</label><hr />';
1.313 albertel 277: if (!$Apache::lonhomework::parsing_a_task) {
278: $result.="
1.235 albertel 279: <nobr>
280: Problem Status:
281: <select name='problemstate'>
1.270 albertel 282: <option value=''></option>
1.235 albertel 283: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
284: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
285: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
286: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
287: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
288: </select>
289: </nobr>
290: <nobr>
291: Problem Type:
292: <select name='problemtype'>
1.270 albertel 293: <option value=''></option>
1.242 albertel 294: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
295: ".&option('problem','problemtype').&mt("Homework problem")."</option>
296: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 297: </select>
298: </nobr>
299: <nobr>
300: Feedback Mode:
301: <select name='problemstatus'>
302: <option value=''></option>
1.242 albertel 303: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
304: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 305: </select>
306: </nobr>
1.242 albertel 307: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 308: <hr />";
1.313 albertel 309: my $numtoanalyze=$env{'form.numtoanalyze'};
310: if (!$numtoanalyze) { $numtoanalyze=20; }
311: $result.= '<input type="submit" name="problemmode" value='.
312: &mt('"Calculate answers').'" /> for
1.136 albertel 313: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 314: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
315: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 316: '',undef,undef,300).
1.210 albertel 317: '<hr />';
1.313 albertel 318: }
1.159 albertel 319: return $result;
1.48 albertel 320: }
321:
1.65 albertel 322: sub initialize_storage {
1.159 albertel 323: %Apache::lonhomework::results=();
1.162 albertel 324: %Apache::lonhomework::history=();
1.159 albertel 325: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 326: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 327: %Apache::lonhomework::history=
1.284 albertel 328: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 329: my ($temp)=keys %Apache::lonhomework::history ;
330: &Apache::lonxml::debug("Return message of $temp");
331: } else {
332: %Apache::lonhomework::history=
333: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
334: }
335: #ignore error conditions
1.67 albertel 336: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 337: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 338: }
339:
340: # -------------------------------------------------------------finalize_storage
341: # Stores away the result has to a student's environment
342: # checks form.grade_ for specific values, other wises stores
343: # to the running users environment
1.285 raeburn 344: # Will increment totals for attempts, students, and corrects
345: # if running user has student role.
1.65 albertel 346: sub finalize_storage {
1.159 albertel 347: my $result;
1.289 albertel 348: if (%Apache::lonhomework::results) {
1.323 ! albertel 349: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
! 350: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 351: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 352: if ($env{'request.state'} eq 'construct' || $symb eq '') {
353: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 354: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 355: $env{'request.uri'},'',$domain,$name);
1.159 albertel 356: &Apache::lonxml::debug('Construct Store return message:'.$result);
357: } else {
358: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
359: $symb,$courseid,$domain,$name);
360: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 361: if ($env{'request.role'} =~/^st/) {
362: &store_aggregates($symb,$courseid);
363: }
1.159 albertel 364: }
1.323 ! albertel 365: } else {
! 366: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 367: }
1.159 albertel 368: return $result;
1.65 albertel 369: }
1.289 albertel 370: use Data::Dumper;
1.65 albertel 371:
1.285 raeburn 372: # -------------------------------------------------------------store_aggregates
373: # Sends hash of values to be incremented in nohist_resourcetracker.db
374: # for the course. Increments total number of attempts, unique students
375: # and corrects for each part for an instance of a problem, as appropriate.
376: sub store_aggregates {
377: my ($symb,$courseid) = @_;
1.286 albertel 378: my %aggregate;
379: my @parts;
1.288 albertel 380: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
381: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 382: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 383: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 384: push(@parts, $1);
1.285 raeburn 385: }
386: }
1.286 albertel 387: foreach my $part (@parts) {
388: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
389: eq 'APPROX_ANS' ||
390: $Apache::lonhomework::results{'resource.'.$part.'.award'}
391: eq 'EXACT_ANS') {
1.287 albertel 392: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 393: }
1.286 albertel 394: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 395: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 396: } else {
1.293 albertel 397: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 398: if ($last_reset) {
1.293 albertel 399: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 400: $aggregate{$symb."\0".$part."\0users"} = 1;
401: }
402: }
1.285 raeburn 403: }
1.287 albertel 404: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 405: }
1.292 raeburn 406: if (keys (%aggregate) > 0) {
1.289 albertel 407: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 408: $cdomain,$cname);
409: }
410: }
1.289 albertel 411:
1.65 albertel 412: sub checkout_msg {
1.211 albertel 413: my %lt=&Apache::lonlocal::texthash(
414: 'resource'=>'The resource needs to be checked out',
415: '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.',
416: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
417: 'checkout'=>'Check out Exam for Viewing',
418: 'checkout?'=>'Check out Exam?');
1.159 albertel 419: return (<<ENDCHECKOUT);
1.211 albertel 420: <h2>$lt{'resource'}</h2>
421: <p>$lt{'id_expln'}</p>
422: <font color="red">
423: <p>$lt{'warning'}</p>
1.91 albertel 424: </font>
1.284 albertel 425: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 426: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 427: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 428: </form>
429: ENDCHECKOUT
430: }
431:
1.252 albertel 432: sub firstaccess_msg {
1.253 albertel 433: my ($time,$symb)=@_;
434: my ($map)=&Apache::lonnet::decode_symb($symb);
435: my $foldertitle=&Apache::lonnet::gettitle($map);
436: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 437: return (<<ENDCHECKOUT);
1.253 albertel 438: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.284 albertel 439: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 440: <input type="hidden" name="markaccess" value="yes" />
441: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
442: </form>
443: ENDCHECKOUT
444: }
445:
1.204 albertel 446: sub init_problem_globals {
447: my ($type)=@_;
448: #initialize globals
1.308 foxr 449: # For problems, we start out in part 0 (outside a <part> tag).
450: # and part 0 is used to describe the main body of the <problem>
451: #
1.204 albertel 452: if ($type eq 'problem') {
453: $Apache::inputtags::part='0';
454: @Apache::inputtags::partlist=('0');
1.266 albertel 455: $Apache::lonhomework::problemstatus=&get_problem_status('0');
456: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 457:
1.266 albertel 458: } elsif ($type eq 'library') {
1.204 albertel 459: $Apache::inputtags::part='';
460: @Apache::inputtags::partlist=();
461: $Apache::lonhomework::problemstatus='';
1.266 albertel 462: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 463:
1.304 albertel 464: } elsif ($type eq 'Task') {
465: $Apache::inputtags::part='0';
466: @Apache::inputtags::partlist=('0');
467: $Apache::lonhomework::problemstatus='';
468: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 469: }
470: @Apache::inputtags::responselist = ();
471: @Apache::inputtags::importlist = ();
472: @Apache::inputtags::previous=();
473: @Apache::inputtags::previous_version=();
474: $Apache::structuretags::printanswer='No';
475: @Apache::structuretags::whileconds=();
476: @Apache::structuretags::whilebody=();
477: @Apache::structuretags::whileline=();
478: $Apache::lonhomework::scantronmode=0;
479: undef($Apache::lonhomework::name);
480:
481: }
482:
483: sub reset_problem_globals {
484: my ($type)=@_;
485: undef(%Apache::lonhomework::history);
486: undef(%Apache::lonhomework::results);
487: undef($Apache::inputtags::part);
1.208 albertel 488: #don't undef this, lonhomework.pm takes care of this, we use this to
489: #detect if we try to do 2 problems in one file
490: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 491: undef($Apache::lonhomework::name);
492: }
493:
1.241 albertel 494: sub set_problem_state {
1.240 albertel 495: my ($part)=@_;
1.284 albertel 496: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 497: $Apache::lonhomework::history{"resource.$part.solved"}=
498: 'correct_by_student';
499: }
500: }
501:
1.241 albertel 502: sub get_problem_status {
503: my ($part)=@_;
1.267 albertel 504: my $problem_status;
1.284 albertel 505: if ($env{'request.state'} eq 'construct' &&
506: defined($env{'form.problemstatus'})) {
507: $problem_status=$env{'form.problemstatus'};
1.267 albertel 508: } else {
509: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
510: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 511: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 512: }
513: return $problem_status;
514: }
515:
1.9 albertel 516: sub start_problem {
1.159 albertel 517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 518:
1.311 foxr 519: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 520: if (!$Apache::lonxml::metamode) {
521: &Apache::lonxml::startredirection();
522: }
1.311 foxr 523:
1.308 foxr 524: # Problems don't nest and we don't allow more than one <problem> in
525: # a .problem file.
526: #
1.184 albertel 527: if ( $Apache::inputtags::part ne '' ||
528: $Apache::lonhomework::parsing_a_problem) {
529: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
530: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 531: return '';
532: }
1.184 albertel 533:
534: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 535: &init_problem_globals('problem');
1.166 albertel 536:
1.284 albertel 537: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 538: $Apache::lonhomework::scantronmode=1;
539: }
1.161 albertel 540:
1.246 albertel 541: &initialize_storage();
1.159 albertel 542: if ($target ne 'analyze') {
543: if ($target eq 'web') {
544: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 545: }
1.284 albertel 546: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 547: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 548: if (($env{'request.state'} eq 'construct') &&
549: defined($env{'form.problemtype'})) {
550: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 551: }
1.240 albertel 552: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 553: }
1.164 albertel 554: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 555: my $uri=$env{'request.uri'};
1.159 albertel 556: if ($uri=~/\.(\w+)$/) {
557: $Apache::lonhomework::type=$1;
558: &Apache::lonxml::debug("Using type of $1");
559: } else {
560: $Apache::lonhomework::type='problem';
561: &Apache::lonxml::debug("Using default type, problem, :$uri:");
562: }
1.87 albertel 563: }
1.301 albertel 564: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 565:
1.159 albertel 566: #added vars to the scripting enviroment
1.213 albertel 567: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 568: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 569: &Apache::run::run($expression,$safeeval);
1.159 albertel 570: my $status;
571: my $accessmsg;
572:
573: #should get back a <html> or the neccesary stuff to start XML/MathML
574: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
575: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 576: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 577:
578: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
579: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
580: $target eq 'tex') {
581: #handle exam checkout
582: if ($Apache::lonhomework::type eq 'exam') {
583: my $token=
584: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 585: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 586: $token=&Apache::lonxml::maketoken();
587: $Apache::lonhomework::history{"resource.0.outtoken"}=
588: $token;
589: }
590: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 591: }
1.284 albertel 592: if ($env{'form.markaccess'}) {
1.252 albertel 593: &Apache::lonnet::set_first_access('map');
594: }
1.159 albertel 595: #handle rand seed in construction space
596: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 597: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 598: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 599: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
600: $rndseed.'" />'.
601: '<input type="submit" name="resetdata"
1.211 albertel 602: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 603: '<input type="hidden" name="username"
1.284 albertel 604: value="'.$env{'form.username'}.'" />';
605: if ($env{'user.adv'}) {
1.267 albertel 606: $form_tag_start.=
1.300 albertel 607: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 608: if (defined($env{'form.showallfoils'})) {
1.267 albertel 609: $form_tag_start.='checked="on"';
610: }
1.300 albertel 611: $form_tag_start.= ' />'.&mt(' Show All Foils').
612: '</label>';
1.267 albertel 613: }
614: $form_tag_start.='<hr />';
1.162 albertel 615: }
1.159 albertel 616: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
617: push (@Apache::inputtags::status,$status);
618: my $expression='$external::datestatus="'.$status.'";';
619: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
620: &Apache::run::run($expression,$safeeval);
621: &Apache::lonxml::debug("Got $status");
622: if (( $status eq 'CLOSED' ) ||
623: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 624: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 625: ( $status eq 'BANNED') ||
1.216 albertel 626: ( $status eq 'UNAVAILABLE') ||
627: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 628: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
629: if ( $target eq "web" ) {
630: $result.= $head_tag_start.'</head>';
631: my $msg=$body_tag_start;
632: if ($status eq 'UNAVAILABLE') {
1.245 albertel 633: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 634: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 635: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 636: }
1.216 albertel 637: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 638: $msg.='The problem '.$accessmsg;
639: } elsif ($status eq 'UNCHECKEDOUT') {
640: $msg.=&checkout_msg;
1.252 albertel 641: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 642: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 643: }
644: $result.=$msg.'<br />';
645: } elsif ($target eq 'tex') {
646: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
647: if ($status eq 'UNAVAILABLE') {
1.211 albertel 648: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 649: } else {
1.211 albertel 650: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 651: }
652: }
653: } elsif ($target eq 'web') {
654: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 655: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 656: $body_tag_start \n $form_tag_start".
1.227 albertel 657: '<input type="hidden" name="submitted" value="yes" />';
658: # create a page header and exit
1.284 albertel 659: if ($env{'request.state'} eq "construct") {
660: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 661: }
662: # if we are viewing someone else preserve that info
1.284 albertel 663: if (defined $env{'form.grade_symb'}) {
1.227 albertel 664: foreach my $field ('symb','courseid','domain','username') {
665: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 666: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 667: }
668: }
669: } elsif ($target eq 'tex') {
1.319 foxr 670: $result .= 'INSERTTEXFRONTMATTERHERE';
671:
1.99 sakharuk 672: }
1.159 albertel 673: } elsif ($target eq 'edit') {
674: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
675: &problem_edit_header();
1.226 albertel 676: $Apache::lonxml::warnings_error_header=
677: &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 678: my $temp=&Apache::edit::insertlist($target,$token);
679: $result.=$temp;
680: } elsif ($target eq 'modified') {
681: $result=$token->[4];
682: $result.=&Apache::edit::handle_insert();
683: } else {
684: # page_start returned a starting result, delete it if we don't need it
685: $result = '';
1.99 sakharuk 686: }
1.159 albertel 687: return $result;
1.9 albertel 688: }
689:
690: sub end_problem {
1.159 albertel 691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 692: my $result;
1.310 foxr 693:
1.321 albertel 694: if (!$Apache::lonxml::metamode) {
695: $result = &Apache::lonxml::endredirection(); #started in &start_problem
696: }
1.319 foxr 697:
698: if ($target eq 'tex') {
1.321 albertel 699:
700: # Figure out the front matter and replace the
701: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
702: # this in end_problem because whether or not we display due
703: # dates depends on whether due dates have already been
704: # displayed in the problem parts.
705:
1.319 foxr 706: my $frontmatter = '';
707: my $startminipage = '';
708: if (not $env{'form.problem_split'}=~/yes/) {
709: $startminipage = '\begin{minipage}{\textwidth}';
710: }
711: my $id = $Apache::inputtags::part;
712: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
713: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
714: my @packages = split /,/,$packages;
715: my $allow_print_points = 0;
716: foreach my $partial_key (@packages) {
717: if ($partial_key=~m/^part_0$/) {
718: $allow_print_points=1;
719: }
720: }
721: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
722: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
723: if (lc($env{'course.'.$env{'request.course.id'}.
724: '.disableexampointprint'}) eq 'yes') {
725: $allow_print_points=0;
726: }
727: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
728: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
729: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
730: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
731:
732: # Figure out what the due date is and if we need to print
733: # it in the problem header. We have been logging the
734: # last due date written to file.
735:
736: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
737: my $duedate = POSIX::strftime("%c",localtime($duetime));
738: my $temp_file;
739: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
740:
741: # Figure out what the last printed due date is or set it
742: # to the epoch if no duedates have been printed.
743:
744: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
745: if (-e $filename) {
746: $temp_file = Apache::File->new($filename);
747: my @due_file = <$temp_file>;
748: $due_file_content = $due_file[$#due_file];
749: chomp $due_file_content;
750: }
751:
752: # We display the due date iff it is not the same as the last
753: # duedate in problem header ($due_file_content), and
754: # none of our parts displayed a duedate.
755: #
756: my $parts_with_displayduedate;
757: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
758: $parts_with_displayduedate =
759: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
760: } else {
761: $parts_with_displayduedate = 0;
762: }
763: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
764: $temp_file = Apache::File->new('>'.$filename);
765: print $temp_file "$duetime\n";
766: if (not $env{'request.symb'} =~ m/\.page_/) {
767: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
768: $frontmatter .= $begin_doc.
769: '\textit{Due date: '.$duedate.'} '.$toc_line;
770: } else {
771: $frontmatter.= $begin_doc.$toc_line;
772: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
773: }
774: } else {
775: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
776: }
777: } else {
778: if (not $env{'request.symb'} =~ m/\.page_/) {
779: $frontmatter .= $begin_doc.$toc_line;
780: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
781: } else {
782: $frontmatter .= '\vskip 1mm \\\\\\\\';
783: }
784: }
785: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
786: }
787:
1.159 albertel 788: my $status=$Apache::inputtags::status['-1'];
789: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
790: $target eq 'tex') {
1.249 albertel 791: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 792: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 793: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
794: &Apache::inputtags::grade;
795: } else {
796: # move any submission data to .hidden
797: &Apache::inputtags::hidealldata($Apache::inputtags::part);
798: }
1.159 albertel 799: } elsif ( ($target eq 'web' || $target eq 'tex') &&
800: $Apache::inputtags::part eq '0' &&
1.252 albertel 801: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 802: # if part is zero, no <part>s existed, so we need show the current
803: # grading status
804: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
805: $result.= $gradestatus;
806: }
807: if (
1.284 albertel 808: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 809: ($target eq 'answer') || ($target eq 'tex')
810: ) {
1.227 albertel 811: if ($target ne 'tex' &&
1.284 albertel 812: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 813: $result.="</form>";
814: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 815: }
816: if ($target eq 'web') {
1.281 albertel 817: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 818: } elsif ($target eq 'tex') {
1.178 sakharuk 819: my $endminipage = '';
1.284 albertel 820: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 821: $endminipage = '\end{minipage}';
822: }
1.284 albertel 823: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 824: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 825: $result=~s/<\/html>//;
1.159 albertel 826: } else {
1.262 sakharuk 827: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 828: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 829: $result .= $endminipage.'\end{document} ';
830: } else {
831: $result .= '';
832: }
1.159 albertel 833: }
834: }
835: }
836: if ($target eq 'grade') {
837: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
838: &finalize_storage();
839: }
1.284 albertel 840: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
841: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 842: $result.=&Apache::lonxml::xmlend().'</html>';
843: # normally we get it from above, but in CSTR
1.172 albertel 844: # we always show answer mode too.
1.159 albertel 845: }
846: } elsif ($target eq 'meta') {
847: if ($Apache::inputtags::part eq '0') {
1.179 albertel 848: @Apache::inputtags::response=();
1.159 albertel 849: $result=&Apache::response::mandatory_part_meta;
850: }
1.215 albertel 851: $result.=&Apache::response::meta_part_order();
1.258 albertel 852: $result.=&Apache::response::meta_response_order();
1.159 albertel 853: } elsif ($target eq 'edit') {
854: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 855: $result .= &problem_edit_footer();
1.320 albertel 856: } elsif ($target eq 'modified') {
857: $result .= $token->[2];
858: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 859: }
1.155 albertel 860:
1.284 albertel 861: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 862: &Apache::inputtags::check_for_duplicate_ids();
863: }
1.204 albertel 864:
865: &reset_problem_globals('problem');
1.159 albertel 866:
867: return $result;
1.48 albertel 868: }
869:
1.108 albertel 870:
1.48 albertel 871: sub start_library {
1.159 albertel 872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
873: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 874: if ($$tagstack[0] eq 'library') {
875: &init_problem_globals('library');
876: $Apache::lonhomework::type='problem';
877: }
1.159 albertel 878: if ($target eq 'edit') {
879: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
880: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
881: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
882: &problem_edit_header();
883: my $temp=&Apache::edit::insertlist($target,$token);
884: $result.=$temp;
885: } elsif ($target eq 'modified') {
886: $result=$token->[4];
887: $result.=&Apache::edit::handle_insert();
888: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 889: $env{'request.state'} eq "construct" ) {
1.159 albertel 890: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
891: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
892: my $name=&get_resource_name($parstack,$safeeval);
893: my $rndseed=&setup_rndseed($safeeval);
894: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 895: $body_tag_start \n $form_tag_start".
1.159 albertel 896: '<input type="hidden" name="submitted" value="yes" />';
897: $result.=&problem_web_to_edit_header($rndseed);
898: }
899: return $result;
1.48 albertel 900: }
901:
902: sub end_library {
1.159 albertel 903: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
904: my $result='';
905: if ($target eq 'edit') {
906: $result=&problem_edit_footer();
907: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 908: $env{'request.state'} eq "construct") {
1.280 albertel 909: $result.='</form>'.&Apache::loncommon::endbodytag().
910: &Apache::lonxml::xmlend();
1.159 albertel 911: }
1.204 albertel 912: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 913: return $result;
1.197 www 914: }
915:
916: sub start_definetag {
917: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
918:
919: my $result;
920:
921: my $name = $token->[2]->{'name'};
922: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
923: if ($name=~/^\//) {
924: $result=
925: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
926: } else {
927: $result=
928: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
929: }
930: $skip=~s/\</\<\;/gs;
931: $skip=~s/\>/\>\;/gs;
932: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
933: return $result;
934: }
935:
936: sub end_definetag {
937: return '';
1.1 albertel 938: }
939:
940: sub start_block {
1.201 albertel 941: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 942:
943: my $result;
1.1 albertel 944:
1.160 albertel 945: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 946: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 947: my $code = $token->[2]->{'condition'};
1.201 albertel 948: if (defined($code)) {
1.137 albertel 949: if (!$Apache::lonxml::default_homework_loaded) {
950: &Apache::lonxml::default_homework_load($safeeval);
951: }
1.131 albertel 952: $result = &Apache::run::run($code,$safeeval);
953: &Apache::lonxml::debug("block :$code: returned :$result:");
954: } else {
955: $result='1';
956: }
957: if ( ! $result ) {
1.201 albertel 958: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 959: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
960: }
961: $result='';
962: } elsif ($target eq 'edit') {
963: $result .=&Apache::edit::tag_start($target,$token);
964: $result .=&Apache::edit::text_arg('Test Condition:','condition',
965: $token,40);
966: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
967: } elsif ($target eq 'modified') {
968: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
969: $safeeval,'condition');
970: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 971: }
1.131 albertel 972: return $result;
1.1 albertel 973: }
974:
975: sub end_block {
1.167 www 976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
977: my $result;
978: if ($target eq "edit") {
979: $result.= &Apache::edit::tag_end($target,$token,'');
980: }
981: return $result;
982: }
983:
984: sub start_languageblock {
1.201 albertel 985: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 986:
987: my $result;
988:
989: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
990: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 991: my $include = $token->[2]->{'include'};
992: my $exclude = $token->[2]->{'exclude'};
993: my %languages=&Apache::loncommon::display_languages();
994: $result='1';
995: if ($include) {
996: $result='';
997: foreach (split(/\,/,$include)) {
998: if ($languages{$_}) { $result='1'; }
999: }
1000: }
1001: if ($exclude) {
1002: foreach (split(/\,/,$exclude)) {
1003: if ($languages{$_}) { $result='0'; }
1004: }
1005: }
1006: if ( ! $result ) {
1007: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1008: $style);
1009: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1010: }
1011: $result='';
1.167 www 1012: } elsif ($target eq 'edit') {
1013: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1014: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1015: $token,40);
1.211 albertel 1016: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1017: $token,40);
1018: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1019: } elsif ($target eq 'modified') {
1020: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1021: $safeeval,'include',
1022: 'exclude');
1.167 www 1023: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1024: }
1025: return $result;
1026: }
1027:
1028: sub end_languageblock {
1.170 www 1029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1030: my $result;
1.201 albertel 1031: if ($target eq "edit") {
1.170 www 1032: $result.= &Apache::edit::tag_end($target,$token,'');
1033: }
1034: return $result;
1035: }
1036:
1037: sub start_instructorcomment {
1.201 albertel 1038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1039:
1040: my $result;
1041:
1042: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1043: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1044: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1045: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1046: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1047: $parser,$style);
1.170 www 1048: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1049: }
1050: $result='';
1051: } elsif ($target eq 'edit') {
1052: $result .=&Apache::edit::tag_start($target,$token);
1053: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1054: }
1055: return $result;
1056: }
1057:
1058: sub end_instructorcomment {
1.159 albertel 1059: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1060: my $result;
1061: if ($target eq "edit") {
1062: $result.= &Apache::edit::tag_end($target,$token,'');
1063: }
1064: return $result;
1.4 tsai 1065: }
1066:
1067: sub start_while {
1.159 albertel 1068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1069:
1.160 albertel 1070: my $result;
1.161 albertel 1071: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1072: $target eq 'tex' || $target eq 'analyze') {
1073: my $code = $token->[2]->{'condition'};
1.4 tsai 1074:
1.160 albertel 1075: push( @Apache::structuretags::whileconds, $code);
1076: if (!$Apache::lonxml::default_homework_loaded) {
1077: &Apache::lonxml::default_homework_load($safeeval);
1078: }
1079: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1080: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1081: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1082: push( @Apache::structuretags::whileline, $token->[5]);
1083: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1084: if ( $result ) {
1085: &Apache::lonxml::newparser($parser,\$bodytext);
1086: }
1087: } elsif ($target eq 'edit') {
1088: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1089: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1090: $token,40);
1091: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1092: } elsif ($target eq 'modified') {
1093: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1094: $safeeval,'condition');
1095: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1096: }
1.160 albertel 1097: return $result;
1.4 tsai 1098: }
1099:
1100: sub end_while {
1.159 albertel 1101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1102: my $result;
1103:
1104: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1105: $target eq 'tex' || $target eq 'analyze') {
1106: my $code = pop(@Apache::structuretags::whileconds);
1107: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1108: my $line = pop(@Apache::structuretags::whileline);
1109: my $return = &Apache::run::run($code,$safeeval);
1110: my $starttime=time;
1111: my $error=0;
1112: while ($return) {
1113: if (time-$starttime >
1114: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1115: #$return = 0; $error=1; next;
1.161 albertel 1116: }
1117: $result.=&Apache::scripttag::xmlparse($bodytext);
1118: $return = &Apache::run::run($code,$safeeval);
1119: }
1120: if ($error) {
1.270 albertel 1121: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1122: }
1123: } elsif ($target eq "edit") {
1124: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1125: }
1.160 albertel 1126: return $result;
1.1 albertel 1127: }
1.6 tsai 1128:
1.160 albertel 1129: # <randomlist show="1">
1.6 tsai 1130: # <tag1>..</tag1>
1131: # <tag2>..</tag2>
1132: # <tag3>..</tag3>
1.160 albertel 1133: # ...
1.6 tsai 1134: # </randomlist>
1135: sub start_randomlist {
1.159 albertel 1136: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1137: my $result;
1138: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1139: $target eq 'tex' || $target eq 'analyze') {
1140: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1141: my $b_parser= HTML::LCParser->new(\$body);
1142: $b_parser->xml_mode(1);
1143: $b_parser->marked_sections(1);
1.159 albertel 1144: my $b_tok;
1145: my @randomlist;
1146: my $list_item;
1147: while($b_tok = $b_parser->get_token() ) {
1148: if($b_tok->[0] eq 'S') { # start tag
1149: # get content of the tag until matching end tag
1150: # get all text upto the matching tag
1151: # and push the content into @randomlist
1152: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1153: $b_parser);
1154: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1155: push(@randomlist,$list_item);
1156: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1157: # $list_item</b>";
1158: }
1159: if($b_tok->[0] eq 'T') { # text
1160: # what to do with text in between tags?
1161: # print "<b>TEXT $b_tok->[1]</b><br />";
1162: }
1163: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1164: # print "<b>END-TAG $b_tok->[1]</b><br />";
1165: # }
1166: }
1.303 albertel 1167: if (@randomlist) {
1168: my @idx_arr = (0 .. $#randomlist);
1169: &Apache::structuretags::shuffle(\@idx_arr);
1170: my $bodytext = '';
1171: my $show=$#randomlist;
1172: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1173: $showarg--;
1174: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1175: for(0 .. $show) {
1176: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1177: }
1178: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1179: }
1180: } elsif ($target eq 'edit' ) {
1181: $result .=&Apache::edit::tag_start($target,$token);
1182: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1183: $token,5);
1184: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1185: } elsif ($target eq 'modified' ) {
1186: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1187: $safeeval,'show');
1188: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1189: }
1190: return $result;
1.7 tsai 1191: }
1192:
1193: sub shuffle {
1194: my $a=shift;
1195: my $i;
1.303 albertel 1196: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1197: &Apache::response::pushrandomnumber();
1.159 albertel 1198: for($i=@$a;--$i;) {
1199: my $j=int(&Math::Random::random_uniform() * ($i+1));
1200: next if $i == $j;
1201: @$a[$i,$j] = @$a[$j,$i];
1202: }
1.251 albertel 1203: &Apache::response::poprandomnumber();
1.7 tsai 1204: }
1.6 tsai 1205: }
1206:
1207: sub end_randomlist {
1.159 albertel 1208: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1209: my $result;
1210: if ($target eq 'edit' ) {
1211: $result=&Apache::edit::tag_end($target,$token,
1212: 'End Randomly Parsed Block');
1213: }
1214: return $result;
1.6 tsai 1215: }
1216:
1.283 albertel 1217: sub ordered_show_check {
1218: my $last_part=$Apache::inputtags::partlist[-2];
1219: my $in_order=
1220: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1221: my $in_order_show=1;
1222: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1223: $in_order_show=&Apache::response::check_status($last_part);
1224: }
1225: return $in_order_show;
1226: }
1227:
1.11 albertel 1228: sub start_part {
1.159 albertel 1229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1230: if (!$Apache::lonxml::metamode) {
1231: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1232: # duedates.
1233: }
1.159 albertel 1234: my $result='';
1235: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1236: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1237: $Apache::inputtags::part=$id;
1.177 albertel 1238: push(@Apache::inputtags::partlist,$id);
1239: @Apache::inputtags::response=();
1.159 albertel 1240: @Apache::inputtags::previous=();
1241: @Apache::inputtags::previous_version=();
1.241 albertel 1242: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1243: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1244: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1245: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1246: my $in_order_show=&ordered_show_check();
1.214 albertel 1247: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1248: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1249: &Apache::run::run($expression,$safeeval);
1.159 albertel 1250:
1251: if ($target eq 'meta') {
1.224 www 1252: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1253: return &Apache::response::mandatory_part_meta.
1254: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1255: } elsif ($target eq 'web' || $target eq 'grade' ||
1256: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1257: if ($hidden || !$in_order_show) {
1.159 albertel 1258: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1259: } else {
1260: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1261: push (@Apache::inputtags::status,$status);
1262: my $expression='$external::datestatus="'.$status.'";';
1263: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1264: &Apache::run::run($expression,$safeeval);
1.284 albertel 1265: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1266: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1267: }
1.216 albertel 1268: if (( $status eq 'CLOSED' ) ||
1269: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1270: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1271: ( $status eq 'BANNED') ||
1272: ( $status eq 'UNAVAILABLE') ||
1273: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1274: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1275: if ( $target eq "web" ) {
1.211 albertel 1276: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1277: } elsif ( $target eq 'tex' ) {
1.284 albertel 1278: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1279: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1280: } else {
1.211 albertel 1281: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1282: }
1.159 albertel 1283: }
1284: } else {
1285: if ($target eq 'tex') {
1.284 albertel 1286: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1287: if ($$tagstack[-2] eq 'td') {
1288: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1289: } else {
1290: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1291: }
1.195 sakharuk 1292: }
1.159 albertel 1293: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1294: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1295: my @allkeys = split /,/,$allkeys;
1296: my $allow_print_points = 0;
1297: foreach my $partial_key (@allkeys) {
1.230 albertel 1298: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1299: if ($1 ne '0') {$allow_print_points=1;}
1300: }
1301: }
1.275 albertel 1302: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1303: if (defined($maxtries) && $maxtries < 0) {
1304: $allow_print_points=0;
1305: }
1.302 albertel 1306: if (lc($env{'course.'.$env{'request.course.id'}.
1307: '.disableexampointprint'}) eq 'yes') {
1308: $allow_print_points=0;
1309: }
1.222 sakharuk 1310: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1311: } elsif ($target eq 'web') {
1312: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1313: }
1314: }
1315: }
1316: } elsif ($target eq 'edit') {
1317: $result.=&Apache::edit::tag_start($target,$token);
1318: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1319: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1320: ' '.
1321: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1322: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1323: } elsif ($target eq 'modified') {
1324: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1325: $safeeval,'id','display');
1.159 albertel 1326: if ($constructtag) {
1.225 albertel 1327: #limiting ids to only letters numbers, and space
1.224 www 1328: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1329: $result = &Apache::edit::rebuild_tag($token);
1330: $result.=&Apache::edit::handle_insert();
1331: }
1332: }
1333: return $result;
1.11 albertel 1334: }
1335:
1336: sub end_part {
1.159 albertel 1337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1338: &Apache::lonxml::debug("in end_part $target ");
1339: my $status=$Apache::inputtags::status['-1'];
1340: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1341: my $in_order_show=&ordered_show_check();
1.321 albertel 1342: my $result;
1343: if (!$Apache::lonxml::metamode) {
1344: $result = &Apache::lonxml::endredirection(); # started in &start_part
1345: }
1.312 albertel 1346: if ($target eq 'grade') {
1.249 albertel 1347: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1348: !$hidden && $in_order_show) {
1.311 foxr 1349: $result.=&Apache::inputtags::grade;
1.249 albertel 1350: } else {
1351: # move any submission data to .hidden
1352: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1353: }
1.283 albertel 1354: } elsif (($target eq 'web' || $target eq 'tex') &&
1355: !$hidden && $in_order_show) {
1.159 albertel 1356: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1357: $target);
1.212 albertel 1358: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1359: $gradestatus='';
1360: }
1.311 foxr 1361: $result.=$gradestatus;
1.265 sakharuk 1362: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1363: } elsif ($target eq 'edit') {
1.311 foxr 1364: $result.=&Apache::edit::end_table();
1.322 albertel 1365: } elsif ($target eq 'modified') {
1366: $result .= $token->[2];
1367: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1368: }
1369: pop @Apache::inputtags::status;
1370: $Apache::inputtags::part='';
1.295 albertel 1371: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1372: return $result;
1.11 albertel 1373: }
1.1 albertel 1374:
1.25 albertel 1375: sub start_preduedate {
1.159 albertel 1376: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1377: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1378: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1379: if (!$Apache::lonhomework::scantronmode &&
1380: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1381: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1382: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1383: &Apache::lonxml::get_all_text("/preduedate",$parser);
1384: }
1.24 albertel 1385: }
1.159 albertel 1386: return '';
1.24 albertel 1387: }
1388:
1.25 albertel 1389: sub end_preduedate {
1.159 albertel 1390: return '';
1.24 albertel 1391: }
1392:
1.25 albertel 1393: sub start_postanswerdate {
1.159 albertel 1394: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1395: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1396: if ($Apache::lonhomework::scantronmode ||
1397: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1398: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1399: }
1400: } elsif ($target eq 'tex') {
1.234 albertel 1401: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1402: }
1403: return '';
1.24 albertel 1404: }
1405:
1.25 albertel 1406: sub end_postanswerdate {
1.159 albertel 1407: return '';
1.24 albertel 1408: }
1409:
1.25 albertel 1410: sub start_notsolved {
1.159 albertel 1411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1412: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1413: $target eq 'tex') {
1414: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1415: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1416: if ($gradestatus =~ /^correct/ &&
1417: &Apache::response::show_answer()) {
1.159 albertel 1418: &Apache::lonxml::debug("skipping");
1419: &Apache::lonxml::get_all_text("/notsolved",$parser);
1420: }
1.24 albertel 1421: }
1.159 albertel 1422: return '';
1.24 albertel 1423: }
1424:
1.25 albertel 1425: sub end_notsolved {
1.159 albertel 1426: return '';
1.24 albertel 1427: }
1428:
1429: sub start_solved {
1.159 albertel 1430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1431: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1432: $target eq 'tex') {
1433: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1434: if ($gradestatus !~ /^correct/ ||
1435: !&Apache::response::show_answer()) {
1.159 albertel 1436: &Apache::lonxml::get_all_text("/solved",$parser);
1437: }
1.24 albertel 1438: }
1.159 albertel 1439: return '';
1.24 albertel 1440: }
1441:
1442: sub end_solved {
1.248 albertel 1443: return '';
1444: }
1445:
1446: sub start_problemtype {
1447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1448: my $result;
1449: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1450: $target eq 'tex' || $target eq 'analyze') {
1451: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1452: if (!defined($mode)) { $mode='show'; }
1453: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1454: my $found=0;
1455: foreach my $type (split(',',$for)) {
1456: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1457: }
1458: if ($mode eq 'show' && !$found) {
1459: &Apache::lonxml::get_all_text("/problemtype",$parser);
1460: }
1461: if ($mode eq 'hide' && $found) {
1462: &Apache::lonxml::get_all_text("/problemtype",$parser);
1463: }
1464: } elsif ($target eq 'edit') {
1465: $result .=&Apache::edit::tag_start($target,$token);
1466: $result.=&Apache::edit::select_arg('Mode:','mode',
1467: [['show','Show'],
1468: ['hide','Hide']]
1469: ,$token);
1470: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1471: [ ['exam','Exam/Quiz Problem'],
1472: ['survey','Survey'],
1473: ['problem','Homework Problem'] ]
1474: ,$token);
1475: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1476: } elsif ($target eq 'modified') {
1477: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1478: $safeeval,'mode','for');
1479: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1480: }
1481: return $result;
1482: }
1483:
1484: sub end_problemtype {
1.159 albertel 1485: return '';
1.24 albertel 1486: }
1.34 albertel 1487:
1488: sub start_startouttext {
1.159 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1490: my @result=(''.'');
1491: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1492: return (@result);
1.34 albertel 1493: }
1.159 albertel 1494:
1.34 albertel 1495: sub end_startouttext {
1.159 albertel 1496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1497: my $result='';
1498: my $text='';
1499:
1500: if ($target eq 'edit') {
1501: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1502: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1503: <td>".&mt('Delete:').
1.159 albertel 1504: &Apache::edit::deletelist($target,$token)
1505: ."</td>
1.42 albertel 1506: <td>".
1.159 albertel 1507: &Apache::edit::insertlist($target,$token).
1508: &Apache::edit::end_row().
1509: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1510: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1511: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1512: }
1513: if ($target eq 'modified') {
1.219 albertel 1514: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1515: }
1516: if ($target eq 'tex') {
1517: $result .= '\noindent ';
1518: }
1519: return $result;
1.34 albertel 1520: }
1.159 albertel 1521:
1.34 albertel 1522: sub start_endouttext {
1.159 albertel 1523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1524: my $result='';
1525: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1526: if ($target eq "modified") {
1527: $result='<endouttext />'.
1528: &Apache::edit::handle_insertafter('startouttext'); }
1529: return $result;
1.34 albertel 1530: }
1.159 albertel 1531:
1.34 albertel 1532: sub end_endouttext {
1.159 albertel 1533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1534: my @result=('','');
1535: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1536: return (@result);
1.34 albertel 1537: }
1.159 albertel 1538:
1.45 albertel 1539: sub delete_startouttext {
1.159 albertel 1540: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1541: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1542: my $text=$$parser['-1']->get_text("/endouttext");
1543: my $ntoken=$$parser['-1']->get_token();
1544: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1545: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1546: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1547: # they did the last time round
1548: &Apache::lonxml::increasedepth($ntoken);
1549: &Apache::lonxml::decreasedepth($ntoken);
1550: return 1;
1.193 www 1551: }
1552:
1553: sub start_simpleeditbutton {
1554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1555: my $result='';
1.284 albertel 1556: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1557: ($target eq 'web') &&
1.284 albertel 1558: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1559: my $url=$env{'request.noversionuri'};
1.193 www 1560: $url=~s/\?.*$//;
1.278 albertel 1561: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1562: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1563: '<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1564: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1565: }
1566: return $result;
1567: }
1568:
1569: sub end_simpleeditbutton {
1570: return '';
1.45 albertel 1571: }
1.34 albertel 1572:
1.1 albertel 1573: 1;
1574: __END__
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